洗衣机

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Polyamide nano-composite film with high charge distribution pore channels and preparation method of polyamide nano-composite film

The invention belongs to the technical field of preparation of mixed matrix membrane separation materials, and discloses a polyamide nano-composite membrane with high charge distribution pore channels and a preparation method of the polyamide nano-composite membrane. The composite membrane is formed by compounding an ultrafiltration base membrane and a charged nano porous metal organic framework hybridized polyamide compact layer, and the charged nano porous metal organic framework hybridized polyamide compact layer is formed by polymerizing a mixed solution of aqueous-phase amine and UIO-66-NH2-based derivatives and an organic acyl chloride solution on a surface interface of the ultrafiltration base membrane. Ionization modification of different degrees is carried out on the surfaces of the UIO-66-NH2 nano-particles, the modified UIO-66-NH2 nano-particles can be evenly dispersed among polyamide polymer chain segments to coordinate the microstructure and charges of a formed polyamide compact ...

Waste nitric acid in-situ recycling device, nitric acid recovery method and heavy metal separation method

The invention relates to a waste nitric acid in-situ recycling device, a nitric acid recovery method and a heavy metal separation method. The waste nitric acid in-situ recycling device consists of an aeration stirring barrel, a pump, a transfer barrel, an automatic fine filter, a treated waste acid temporary storage barrel, nitric acid recycling equipment, a purified acid temporary storage barrel, a residual liquid temporary storage barrel and nitric acid concentration equipment which are sequentially connected through a pipeline, concentrated liquid of the nitric acid concentration equipment flows back to the treated waste acid temporary storage barrel through a pipeline, the transfer barrel is communicated with the clear water washing barrel through a pipeline, a stirrer is arranged at the upper part of the aeration stirring barrel, and an aeration pipe is arranged at the bottom of the aeration stirring barrel.

洗衣机

Aerosol-generating device and method for controlling aerosol-generating device

The invention provides an aerosol generating device and a control method of the aerosol generating device, and the aerosol generating device comprises a shell which is provided with a containing cavity, and the containing cavity can be closed after being opened; the microwave generating device is located in the containing cavity, and the microwave generating device is provided with a microwave control circuit; the first detection part is arranged in the containing cavity, the first detection part is electrically connected with the microwave control circuit, and when the first detection part detects that the containing cavity is opened, the microwave control circuit is disconnected. If the first detection piece detects that the containing cavity is opened, a detection signal of the first detection piece is sent to the controller, the controller controls the microwave control circuit to be switched off, and even if a signal that aerosol is generated through the microwave acting on the aerosol ...

550 MPA HIGH TEMPERATURE-RESISTANT PIPELINE STEEL AND MANUFACTURING METHOD THEREOF

Disclosed is a 550 MPa high temperature-resistant pipeline steel, comprising the following chemical elements in percentages by mass: 0.061%≤C≤0.120%, 1.70%≤Mn≤2.20%, 0.15%≤Mo≤0.39%, 0.15%≤Cu≤0.30%, 0.15%≤Ni≤0.50%, 0.035%≤Nb≤0.080%, 0.005%≤V≤0.054%, 0.005%≤Ti≤0.030%, 0.015%≤Al≤0.040%, 0.005%≤Ca≤0.035%, and the balance being Fe and unavoidable impurities. Also disclosed is a manufacturing method of a 550 MPa high temperature-resistant pipeline steel, comprising the steps of: smelting, casting, slab heating, rough rolling, finish rolling, controlled cooling, and air cooling to room temperature. The pipeline steel has an excellent mechanical property under a high temperature.

POLYPHENYLENE SULFIDE RESIN COMPOSITION AND MOLDED PRODUCT THEREOF

The present invention relates to a polyphenylene sulfide resin composition, comprising 5-2000 parts by mass of an inorganic filler relative to 100 parts by mass of a poly(p-phenylene sulfide)-m-phenylene sulfide random copolymer. The composition of the present invention has excellent heat and humidity resistance, can maintain a high mechanical strength when in contact with water for a long time, and is therefore particularly suitable as a water coolant for injection molding and in antifreeze circulation systems of an automobile, etc., and in other articles which are in contact with liquids, such as water, for a long time.

Brain tissue hemorrhage location classification and hemorrhage quantification method, device, medium and program

The invention discloses a brain tissue hemorrhage positioning classification and hemorrhage quantification method, device, medium and program, the method is applied to a brain tissue hemorrhage positioning classification and hemorrhage quantification system, and the brain tissue hemorrhage positioning classification and hemorrhage quantification system is provided with a brain tissue hemorrhage positioning classification and hemorrhage quantification model. A brain tissue hemorrhage positioning classification and hemorrhage quantification model is a Hybrid 2D/3D U-Net deep learning network model, and the method comprises the following steps: extracting a three-dimensional brain tissue region in head CT image data based on a region growth brain tissue extraction algorithm, and increasing brainstem recognition as a constraint boundary of region growth based on the region growth brain tissue extraction algorithm; and the brain tissue bleeding positioning classification and bleeding quantification ...

NLR GENE NLR1-V AND EXPRESSION VECTOR AND USE THEREOF

The present invention falls within the field of genetic engineering, and discloses a CC-NBS-LRR gene NLR1-V encoded by the enduring and broad-spectrum gene Pm21 which is resistant to powdery mildew in the Triticum aestivum-Haynaldia villosa 6VS/6AL translocation line in Nannong 9918, and an expression vector and use thereof. The ORF sequence of the gene NLR1-V having a NLR domain is as shown in SEQ ID NO: 1, and the encoded amino acid sequence is as shown in SEQ ID NO: 2.

Method for recovering organic matters in wet-process purified phosphoric acid tail gas

The invention discloses a method for recovering organic matters in wet-process purified phosphoric acid tail gas. The method comprises the following steps: adsorption, regeneration, replacement, cooling and secondary adsorption. Organic matter in tail gas is mainly adsorbed through resin, a resin column after adsorption saturation is regenerated through steam blowing, the organic matter enters a condenser along with steam to be condensed and recycled, and after a series of treatment, the tail gas reaching the standard is discharged to the atmosphere. Compared with the prior art, the resin adsorption method has the characteristics of high organic matter recovery rate, high adsorption precision, short process steps, less energy consumption equipment, low investment cost and low maintenance cost. The method can reduce the consumption of the wet-process purified phosphoric acid solvent, reduces the content of organic matters in the discharged tail gas, and has good economic and environmental ...

Exhibition design mold storage device

The utility model provides an exhibition design mold storage device which comprises a first box body, a motor is arranged at the top of the first box body, a threaded rod is fixedly connected to the bottom of the motor, the bottom of the threaded rod penetrates through the first box body and extends into the first box body, a threaded pipe is arranged on the surface of the threaded rod in a sleeved mode, and the threaded pipe is fixedly connected with the motor. The two sides of the threaded pipe are fixedly connected with first connecting blocks, and the back faces of the first connecting blocks are movably connected with movable rods through rotating shafts. According to the exhibition design mold storage device, the effect of containing a threaded rod and a threaded pipe is achieved through the first box body, the effect of driving a first connecting block to move is achieved through a motor, the threaded rod and the threaded pipe, and the effect of fixing a mold is achieved through ...

Femtosecond vortex laser processing device and method

The invention provides a femtosecond vortex laser machining device and method, and relates to the field of femtosecond laser machining, the femtosecond vortex laser machining device comprises a clamp, a focusing mechanism, an adjusting mechanism and a laser used for outputting vortex laser, the output end of the laser faces the input end of the adjusting mechanism, and the output end of the adjusting mechanism faces the input end of the focusing mechanism; a vortex-line-shaped machining area is arranged between the output end of the focusing mechanism and the clamp; the clamp is connected with a driving mechanism which can drive the clamp to reciprocate in the axial direction of the machining area. In order to solve the problems that efficiency is low and precision is not easy to control when a workpiece is subjected to surface treatment through laser at present, vortex laser is used for conducting surface treatment on a cylindrical workpiece, the vortex laser is collimated and focused ...

Method for constructing mitochondrial genome sequencing library

The invention discloses a method for constructing a mitochondrial genome sequencing library. The method comprises the following steps: obtaining purified mtDNA through nucleoplasm separation, adding exonuclease Exo V to remove nuclear genes, and adding Tn5 transposase to fragment the mtDNA so as to construct the mitochondrial genome sequencing library. The invention develops a method for efficiently separating and purifying mitochondrial DNA, which can effectively avoid the interference of homologous sequences of nuclear genomes; the initial mtDNA does not need to be subjected to PCR (Polymerase Chain Reaction) amplification before the Tn5 transposase is fragmented, so that the problems of preference and wrong basic group introduction caused by PCR can be avoided; meanwhile, the time consumption is short, and the construction efficiency of the mitochondrial genome sequencing library is improved.

Stable drilling and layered collecting device for ocean rocks

The invention provides a stable drilling, layering and collecting device for ocean rocks, and relates to the technical field of ocean rock drilling, layering and collecting. The stable drilling, layering and collecting device for the ocean rock comprises a drilling, layering and collecting device body, a cylindrical box body is fixedly connected to the top of the drilling, layering and collecting device body, a rotating box is tightly attached to the interior of the cylindrical box body, and four feeding ports and a collecting bin are formed in the outer side of the rotating box. According to the stable drilling layered collecting device for the ocean rock, the outer side of each feeding opening is marked by Arabic numerals in a unified mode, data analysis on samples in the later period is facilitated, after broken rock layers are collected in one collecting bin, the feeding openings are sealed through the inner wall of the rotating box, and the rotating box rotates to rotate; layered collection ...

Three-dimensional model reconstruction method and device based on binocular vision reconstruction route

The invention provides a three-dimensional model reconstruction method and device based on a binocular vision reconstruction route. The method comprises the following steps: acquiring a binocular image set; extracting feature points of each pair of images on the basis of an SURF (Speed-Up Robust Feature) algorithm, and matching the feature points; determining a camera pose according to the successfully matched feature points; calculating a projection matrix between the pixel coordinates and the world coordinates based on the camera pose, the camera parameters and the pixel coordinates of the image; extracting feature points of the first image by using an angular point monitoring algorithm, and tracking and matching feature points of the second image by using a sparse optical flow tracking algorithm; and projecting the tracked and matched feature points to a three-dimensional space based on a multi-view stereoscopic algorithm and a projection matrix to obtain a three-dimensional point cloud ...

Novel indoor type staircase control cabinet

... 本实用新型涉及电梯生产设备领域，具体涉及新型室内型扶梯控制柜体。本实用新型的上述技术目的是通过以下技术方案得以实现的：新型室内型扶梯控制柜体，包含柜门和柜身，所述柜门上安装有提手，所述柜身下方位置设有底板，所述底板上设有滑动槽，所述滑动槽供所述柜门在所述柜身上滑动，所述柜门与所述柜身通过扣件连接，所述柜门上设有折弯贴合部。本实用新型的目的是提供新型室内型扶梯控制柜体，结构简单，利于实施，能便捷打开柜门，分离柜门和柜身，对控制柜体进行操作。 ...

Method, system and equipment for automatically detecting coking of nozzle of pulverized coal burner and medium

The invention discloses a pulverized coal burner nozzle coking automatic detection method, system and device and a medium, and the method comprises the steps: inputting the unit load L of a current boiler, the coal feeding amount m of a coal mill, the inlet primary air volume f of the coal mill and the inlet primary air pressure y of the coal mill into a trained machine learning model; standard sound spectrum information and infrared thermal imaging information are obtained; and determining the coking degree of the upper nozzle of the pulverized coal burner according to the detected deviation between the infrared imaging information at the upper nozzle of the pulverized coal burner and the standard infrared thermal imaging information and the detected deviation between the sound spectrum information at the upper nozzle of the pulverized coal burner and the standard sound spectrum information. According to the method, the system, the equipment and the medium, the coking condition of the ...

BIODEGRADABLE POLYMER FILM MONOLAYER METAL COVERED STENT

Provided is a biodegradable polymer film monolayer metal covered stent, which comprises a tubular monolayer metal stent main body, a knitted layer on the surface of the stent, and a film covering the outside of the stent main body; wherein, the knitted layer is a network structure which is on the surface of the whole stent main body and formed by electrostatic spinning and weaving; and the covering film is welded so as to be integral with the stent main body by hot pressing. The biodegradable polymer film monolayer metal covered stent solves the following problems in the covered stents of the prior art: a relatively large structure, a poor flexibility and passability, a poor antithrombotic property, a long endothelialization progress and a high restenosis rate.

Based on video and sensing combined fatigue driving detection device

... 本发明的目的是提供种基于视频和传感结合的疲劳驾驶检测装置，由个环形护套状的有应变脉搏传感单元、控制系统单元、摄像单元、通讯单元和报警单元组成。环形护套装在方向盘上，并配有限时应答按钮，护套内有控制线通过单片机控制系统跟车内摄像单元、报警单元和通讯单元相连。该装置的特点是：装置实时检测驾驶员的脉搏数据并发送回监控中心，同时监控中心根据脉搏数据分析或每隔段时间会发送指令，启动方向盘环形护套上的限时应答按钮，超过规定时间未能应答，会自动启动车内摄像装置，并对驾驶员进行疲劳分析，符合疲劳驾驶的启动报警提示“您已疲劳驾驶，请停车休息”。 ...

T-shaped bolt blank forming self-positioning hot upsetting die

A T-shaped bolt blank forming self-positioning hot upsetting die comprises a die handle, a threaded sleeve, a combined upper die, a combined lower die, a fixing bolt, a lower die positioning ring, a lower die base plate, a connecting screw and a lower die plate. A lower die base plate is fixed above the lower die plate through a connecting screw, a combined lower die is mounted above the lower die base plate, and the combined lower die is fixed on the lower die base plate through a fixing bolt after being sleeved with a lower die positioning ring; and a combined upper die is arranged above the combined lower die and is fixed on the die handle through a thread bushing. The invention well solves the following problems: 1, due to mold manufacturing error accumulation, displacement occurs in use, the symmetry degree of the head part and the rod part of a processed product is poor, and the qualification rate is not high; 2, a guide pillar and guide sleeve die frame design structure is adopted ...

Ocean structure steel plate toughness detection device and method

The invention belongs to the technical field of steel plate detection, particularly relates to an ocean structure steel plate toughness detection device and method, and provides the following scheme aiming at different use environments of ocean structure steel plates and large errors of toughness results obtained by conventional pressure detection: the ocean structure steel plate toughness detection device comprises a platform which is provided with a rectangular cavity; a water tank is arranged in the rectangular cavity, a detection seat is arranged in the water tank, an oval hole is formed in the detection seat, a limiting sliding rod is movably connected into the oval hole, and the two ends of the limiting sliding rod are fixedly connected with the inner walls of the two sides of the water tank. The ocean structure steel plate toughness detection device and method are divided into two detection links, the conventional toughness of the steel plate body can be detected, meanwhile, the ...

DPDK-based arm platform network forwarding delay test method and system

The invention provides a DPDK-based arm platform network forwarding delay test method and system, and belongs to the field of network performance tests.The method comprises the steps that an automatic network port binding script of DPDK software is used, the name or PCI bus number of a to-be-tested network port of an arm platform is bound with UIO, and a network card corresponding to the to-be-tested network port enters a DPDK mode; and the other end of the to-be-tested network port is connected to the packet sending machine, after the environment configuration of the packet sending machine is completed, the packet sending end of the packet sending machine records the flow of packets sent out from the packet sending machine and the number of packets sent out per second, and the time spent on returning the corresponding packets to the packet sending machine is calculated and serves as the network forwarding delay. The test method provided by the invention can be universally used on each ...

Belt conveyor conveying monitoring device

The invention discloses a belt conveyor conveying monitoring device which comprises a machine frame, a plurality of supporting frames are arranged on the machine frame at equal intervals, three carrier rollers are rotationally arranged on each supporting frame, a conveying belt is in lap joint with the carrier rollers in a supporting mode, and infrared monitors are arranged on the portions, located on the outer sides of the supporting frames, of the machine frame. The infrared monitor is used for monitoring the temperature of a carrier roller and a conveying belt, the passive adjusting unit is arranged, every three adjacent supporting frames form a group, the supporting frame located in the middle of the three supporting frames in each group serves as a first supporting plate and is fixedly installed on the rack, and the driven adjusting unit is used for adjusting the temperature of the carrier roller and the conveying belt. The two supporting frames located on the two sides of the three ...

TRACTION POWER SUPPLY SYSTEM FOR RAIL TRANSIT, CONTROL METHOD THEREFOR, AND RELATED COMPONENTS

A traction power supply system for rail transit, a control method therefor, and related components. The traction power supply system for rail transit comprises a high-voltage AC power supply bus, multiple bidirectional converters, a DC power supply bus used to supply power to a train, and multiple station equipment sets. One end of each of the bidirectional converters is connected to the high-voltage AC power supply bus, and the other end thereof is connected to the DC power supply bus. Each of the station equipment sets is connected to the high-voltage AC power supply bus. The present application uses the bidirectional converters to connect the DC power supply bus and the AC power supply bus, so as to perform flexible power distribution with respect to the magnitude and direction of power output on the DC power supply bus and the AC power supply bus, thereby achieving active control to reduce possible network voltage fluctuations. In addition, voltage conversion, braking feedback, harmonic ...

Parameterized constraint variant method of isogeometric analysis model

The invention provides a parameterized constraint variant method of an isogeometric analysis model. The method comprises the following steps: giving an IGA simulation model, carrying out variant analysis and model dimension reduction understanding on the model, extracting a skeleton curve and a corresponding section curve family of the model, carrying out parameterization on related editing variables of a skeleton/cross section by considering rigid design constraints and variant demands of a complex model, and constructing a parameterization constraint variant driving template of the IGA simulation model. And for the variant driving template, extracting control point information of related geometric representation in the IGA simulation model, defining a mapping relation between the variant driving template and the simulation model, and further forming a variant proxy geometric model. And modifying the constraint variant driving template through parameterization, and realizing the editing ...

Method and device for treating unsymmetrical dimethylhydrazine-containing wastewater

The invention relates to the technical field of wastewater treatment, and particularly discloses a method and device for treating unsymmetrical dimethylhydrazine-containing wastewater, and the method comprises the following steps: (a) feeding and mixing; the method comprises the following steps: feeding unsymmetrical dimethylhydrazine wastewater and a sodium hypochlorite solution into a static mixer; (b) catalytic oxidation treatment; (b1) filling the straight pipe type reactor with a catalyst; (b2) feeding the mixed solution into a straight pipe type reactor; (c) online monitoring; detecting the content of unsymmetrical dimethylhydrazine in the straight tube type reactor on line through an unsymmetrical dimethylhydrazine monitor; (d) discharging liquid; the unsymmetrical dimethylhydrazine monitor is used for reading to judge whether the content of the unsymmetrical dimethylhydrazine in the treated wastewater reaches the standard or not; if the reading of the unsymmetrical dimethylhydrazine ...

Visual analysis method and system for power communication optical cable resources and storage medium

The invention relates to an electric power communication optical cable resource visual analysis method and system and a storage medium. The method comprises the following specific steps: arranging an optical cable resource information data set and constructing a matrix; optical cable resource information is visualized; performing optical cable resource information data analysis based on a complex network theory, performing statistical analysis on global distribution conditions of various types of optical cable resource information, and identifying key optical cables; and the optical cable resource information visualization unit interactively operates. According to the invention, visualization and analysis of various types of optical cable resource information are realized, multi-angle efficient cognition is provided for mining of various types of optical cable resource information by business personnel, the intuition and readability of the optical cable resource information are improved ...

Dispersed ice spraying device for dry ice cleaning machine

A dispersed ice spraying device for a dry ice cleaning machine comprises a spray gun spray pipeline, the spray gun spray pipeline is installed at a nozzle of the dry ice cleaning machine through threads, the spray gun spray pipeline is fixedly connected with one end of a fluid director, and four branch channels are evenly formed in the middle of the fluid director. A rotating head is arranged at the other end of the fluid director, a center hole is formed in the axis position of the rotating head, a center shaft is arranged in the center hole, one end of the center shaft penetrates through the center hole and the fluid director and is fixedly connected with the fluid director, a limiting block is fixedly installed at the other end of the center shaft, and the rotating head is rotatably connected to the outer surface of the center shaft. According to the utility model, the defects in the prior art are overcome, dry ice is uniformly divided into four branches through the fluid director, the ...

Magnesium/cuprous chloride seawater battery, positive electrode material and preparation method thereof

The invention discloses a magnesium/cuprous chloride seawater battery, a positive electrode material and a preparation method of the positive electrode material, and belongs to the technical field of seawater batteries. The preparation method comprises the following steps: mixing cuprous chloride powder and cuprous sulfide powder according to a ratio of (95-99): (1-5) to obtain electrode powder; placing the electrode powder in a melting device, sealing and heating to 450-520 DEG C, and keeping the temperature for 2-4 hours to obtain a molten mass; and pouring the molten mass to a pair of rollers of a roller press provided with a current collector, carrying out cooling crystallization on the molten mass through the pair of rollers, and embedding the current collector in the middle of a crystal to prepare the strip electrode. The cuprous chloride powder and the cuprous sulfide powder material are mixed, heated and melted, and then are continuously poured into the roller press with the prefabricated ...

ANTI-LOOSENING SELF-LOCKING STRUCTURAL MEMBER

Disclosed is an anti-loosening self-locking structural member, comprising a first threaded section (A) and a second spiral elastic deformation section (B) which are provided on the structural member, wherein the thread pitch of the second spiral elastic deformation section (B) is the same as that of the first threaded section (A), and the second spiral elastic deformation section has a thread axial section in the shape of a thin sheet; and the first threaded section has an axial displacement relative to the second spiral elastic deformation section that is not an integral multiple of the pitch. The member has stable self-locking torsion and high assembly precision, can provide reliable anti-loosening self-locking torsion and is not easily broken.

POLYPHENYLENE SULFIDE RESIN COMPOSITION, AND MOULDING AND MANUFACTURING PROCESS FOR MOULDING THEREOF

Provided is a polyphenylene sulfide resin composition comprising a polyphenylene sulfide resin composition, and profile glass fibres and the polyphenylene sulfide resin composition has a chlorine content of less than 1000 ppm. The resulting polyphenylene sulfide resin composition has excellent flowability, toughness and rigidity. Also provided is a moulding obtained from the polyphenylene sulfide resin composition and a manufacturing process thereof. The moulding is particularly suitable for the preparation of frames for products such as portable computers, mobile phones, and portable electronic appliances.

Intelligent charging device based on Internet of Things

The invention discloses an intelligent charging device based on Internet of Things, which comprises a mounting seat, a charging pile, a cable and a charging gun, the charging pile is fixedly mounted on the upper surface of the mounting seat, a sliding box for placing the charging gun is arranged on the mounting seat, and a storage groove for storing the sliding box is formed in the surface of the charging pile. A guide rail which penetrates through the sliding box and is in limited sliding connection with the sliding box is fixedly connected to the upper surface of the mounting seat, a locking mechanism matched with the guide rail is arranged in the sliding box, the locking mechanism comprises a first toothed plate arranged in the sliding box, and a connecting plate is fixedly connected to the lower surface of the first toothed plate; the lower surface of the connecting plate is fixedly connected with two inclined strips which are obliquely arranged, the inner wall of the sliding box is ...

INVERTED NON-STOP LIFEBOAT DIESEL ENGINE LUBRICATION SYSTEM AND FLOW CONFIGURATION METHOD THEREOF

An inverted non-stop lifeboat diesel engine lubrication system, comprising an oil pump, a lubricating oil tank (127), a breathing pipe (133), a machine body (101), and an oil pan (118); the oil pump is a double pump having oil inlets and outlets that are independent separately, the upper and lower layers thereof are superposed, the upper layer is a lubricating pump (111) and the lower layer is an oil return pump (112); the oil inlet of the oil return pump (112) leads to the bottom of a cavity of the oil pan (118), and the oil outlet leads to the interior of the lubricating oil tank (127); the oil inlet of the lubricating pump (111) leads to the interior of the lubricating oil tank (127), and the oil outlet leads to an inlet of a machine filter (134); an outlet of the machine filter (134) is communicated with a main oil path of the machine body; an oil tank cover (125) of the lubricating oil tank (127) is provided with a breathing one-way valve (132) and an oil filling port (130); an outlet ...

Method for preparing levulinic acid by promoting cellulose conversion through formaldehyde

The invention relates to a method for preparing levulinic acid by promoting cellulose conversion through formaldehyde, which is characterized in that the levulinic acid is synthesized in a microwave reactor or a high-pressure reaction kettle by taking microcrystalline cellulose as a raw material, an organic solvent and water as a mixed solvent, AlCl3. 6H2O as a catalyst and formaldehyde as an accelerant. 2-methyltetrahydrofuran is selected as an organic solvent, and the volume ratio of 2-methyltetrahydrofuran to water is (1: 1)-(6: 1). According to the method, formaldehyde and hydroxyl of a glucose unit in a cellulose structure are subjected to acetalation reaction to promote cellulose hydrolysis and subsequent conversion, and the synthesis efficiency of levulinic acid is high; less humin is generated, the solvent boiling point is low, and the separation energy consumption is low; and formaldehyde is cheap, easily available and extremely easy to separate.

Power supply damping protection device

The invention provides a power supply damping protection device, and relates to the field of power supply equipment, the power supply damping protection device comprises a protection shell, fixing frames are hinged to the middle of the left, right and rear side walls of the protection shell, air filter screens are placed in the fixing frames, a central swing column is connected to the middle of the bottom end face in the protection shell, and connecting rods are symmetrically arranged on the two sides of the central swing column; a damping sliding block is connected to the top of the connecting rod, an inner power supply box is fixedly installed on the top of the bottom plate, fixing sleeves are installed on the left side wall and the right side wall of the inner power supply box, damping pins are slidably connected into the fixing sleeves, the damping pins are arranged in the fixing sleeves, and damping springs are arranged on the two sides of the damping pins; after the fixing sleeve ...

Positioning machining tool for aluminum shell

The invention relates to the technical field of positioning machining tools, and provides an aluminum shell positioning machining tool which is convenient to fix a device on a table top through the arrangement of a mounting plate, an adjusting bolt and a clamping plate, and is convenient to open and close and convenient to replace and disassemble a female die through the arrangement of a first connecting block, a rotating block and a second connecting block. According to the aluminum shell machining device, through arrangement of a first limiting plate, a first sliding block, a first transmission wheel and other assemblies, aluminum sheets can be conveniently transmitted, the situation that when the aluminum sheets are manually moved, the aluminum shell machining device hurts the bodies of workers can be prevented, and the aluminum shell machining device comprises a base and further comprises two mounting plates; the two mounting plates are fixedly connected to the left end and the right ...

For baby monitoring intelligent wear apparatus

... 本实用新型涉及一种用于婴儿监护的智能穿戴设备，包括监测主机和可穿戴式检测腕带，可穿戴式检测腕带的输出端与监测主机连接，所述的监测主机包括环境参数控制单元、环境参数检测单元和微处理器，环境参数检测单元连接微处理器的输入端，微处理器的输出端连接环境参数控制单元；可穿戴式检测腕带内置心率传感器、体温传感器、三轴加速度传感器和血氧传感器；环境参数控制单元包括空调控制器、新风机控制器和空气净化控制器；环境参数检测单元包括噪音检测传感器、温湿度传感器、光强传感器和紫外线传感器。本实用新型可以实现婴儿生理参数监护和生活环境监测和控制的智能化，为婴儿的健康成长营造一个良好、舒适的环境。 ...

Fire -resistant cable

... 本实用新型公开一种耐火电缆，包括若干缆芯，若干缆芯之间设置有填充层，并外加外护套。外护套外设置有无机吸热层，无机吸热层内设置有无机吸热材料，无机吸热材料为在受热时能够吸热并且能够释放出水蒸气的无机材料。本实用新型耐火电缆在外护套外设置有无机吸热层，该无机吸热层在受热到一定程度时能够释放出水蒸汽，水蒸汽在释放过程中吸热，这个吸热过程本身能够起到降温作用，而且水蒸汽挥发能够源源不断地带走热量，使温度降低，这能提高耐火性能，且能够保持耐火电缆完整性，减少火灾发生时对电线电缆的损毁，确保电线电缆正常工作，保障人们生命财产安全。 ...

Source network storage multi-time scale optimization method and device based on interval time division

The invention provides a source network storage multi-time scale optimization method and device based on interval time division. The method comprises the following steps: carrying out time period division on fluctuation intervals of load power prediction data and photovoltaic power prediction data in a day-ahead stage to obtain a discrete equipment regulation and control period; on the basis of the regulation and control period, according to load power prediction data and photovoltaic power prediction data, taking the minimum operation cost of the power distribution network as a day-ahead optimization target, and under the constraint of a safety index, carrying out coordinated optimization on various controllable equipment, and determining an optimal economic operation scheme at a day-ahead stage; and based on the action planning time period of discrete equipment in the day-ahead stage, performing intra-day rolling prediction on photovoltaic power prediction data and load power prediction ...

A network-based taglibs fixed telephone harassment interceptors

... 种基于网络标记库的固话骚扰拦截器，包括网络标记库单元、通讯终端来电分析单元，拨号联网单元、白名单单元、黑名单联网标记单元。在离线状态如果有来电会自动拨号联网，联网后查询到来电的标记值，自动选择直接挂断、密码确认或白名单直接通过三种回应方式，既保证了合法电话的正常通行，又有效地拦截了电话干扰。 ...

Outdoor energy storage inverter circuit with power detection

The invention discloses an outdoor energy storage inverter circuit with power detection. The outdoor energy storage inverter circuit comprises a chip U1, a chip U2, a diode D1, an inductor L1, a diode D2, a diode D3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9 and a resistor R10. The AC output can be shut down at proper time, saves energy and reduces emission, accords with the carbon neutralization design, is good in compatibility with low-power equipment during AC output, does not generate a power-off phenomenon, improves the use experience of a user, and has the advantages of simple circuit, high practicability, low cost and capability of effectively reducing the circuit fault probability.

Protective device for preventing rolling gate from falling

The utility model relates to the technical field of rolling gates, in particular to a protection device for preventing a rolling gate from falling. The utility model aims to solve the problems that when a band-type brake device of a rolling gate fails or a chain transmission device fails, the rolling gate has the potential safety hazard of falling after being opened, accidents can happen, and personal casualties and property losses are caused, and a rolling gate protection device in the prior art is complex in structural process, inconvenient to operate, high in safety and the like. And daily replacement and maintenance are tedious. The scheme comprises a basic part and a rotating rod, a supporting assembly is fixed to the basic part and used for supporting the rotating rod. The rotating rod is movably inserted into the supporting assembly, and the rotating rod can rotate around the axis of the rotating rod in the supporting assembly. The top end of the rotating rod is connected with a ...

Ground surface subsidence treatment device

The invention discloses an earth surface subsidence treatment device which comprises a high-pressure pump and a grouting pipe fitting, one end of the grouting pipe fitting is communicated with the output end of the high-pressure pump, the other end of the grouting pipe fitting extends into a grouting hole for grouting, and the earth surface subsidence treatment device is characterized by further comprising a buffering mechanism which comprises a buffering cavity and a pressure relief cavity. The buffer cavity is communicated with the pressure relief cavity, a piston assembly is movably connected in the buffer cavity, an intercepting assembly is movably connected in the pressure relief cavity, and the buffer cavity is filled with a hydraulic medium. The pressure of fluid in the grouting pipe acts on the piston assembly in the buffer cavity to buffer the pressure in the grouting pipe, and when the pressure acting on the piston assembly reaches a critical value, the piston assembly presses ...

Anti-agglomeration uniform mixing method for manufacturing high-strength and high-toughness molybdenum alloy

The invention discloses an anti-agglomeration uniform mixing method for manufacturing a high-strength and high-toughness molybdenum alloy, and relates to the technical field of powder metallurgy, the anti-agglomeration uniform mixing method comprises the following steps: S1, preparing materials; s2, preparing a solution; s3, adding the material into a rotary ultrasonic atomization uniform device; s4, mixing the materials to obtain mixed powder; s5, drying: carrying out drying treatment on the mixed powder obtained in the step S4 to obtain a molybdenum alloy mixture with uniformly added alloy elements; and S5, the molybdenum alloy mixture obtained in the step S5 is processed through subsequent pressing, sintering and rolling processes, and the high-strength and high-toughness molybdenum alloy is obtained. The high-strength and high-toughness molybdenum alloy is reasonable in design, uniform in material mixing, easy to control and suitable for various-scale production, and therefore the high-strength ...

Port handheld microorganism sampling and detecting device

The invention relates to the technical field of microbiological detection, in particular to a port handheld microbiological sampling and detecting device which comprises a fluorescence detector body, a lifting turnover device, a sample conversion driving device, a sample placing device, a sampling device and a liquid adding driving device. The top surface of the rotating column is fixedly connected with a sample placing device, and a plurality of sampling devices are inserted into the placing box. The device is reasonable in structural design, during detection, the device can be automatically overturned, the cotton ball extends out, an object to be detected can be directly wiped through the cotton ball, then the device is automatically overturned through the lifting and overturning device and withdrawn into the sampling sleeve, and the cotton ball can be rotated while liquid is added through the liquid adding driving device, so that a sample in the cotton ball fully reacts to generate fluorescent ...

Non-magnetic valve control water meter management system and method based on Internet of Things

The invention discloses a non-magnetic valve control water meter management system and method based on the Internet of Things, and belongs to the technical field of water meter management. The system comprises a data extraction module, a prediction module, a data comparison module, a water meter fault detection module, a data transmission module and an alarm module. The output end of the data extraction module is connected with the input end of the prediction module, the output end of the prediction module is connected with the input end of the data comparison module, the output end of the data comparison module is connected with the input end of the water meter fault detection module, and the output end of the water meter fault detection module is connected with the input end of the data transmission module. The output end of the data transmission module is connected with the input end of the alarm module. The water consumption of the user in the next time period is predicted, a predicted ...

Cutting waste liquid and cutting washing water in-situ recycling device and method

The invention relates to an in-situ recycling device and method for cutting waste liquid and cutting washing water. A cutting waste liquid in-situ recycling device is composed of a slag remover, a bag type filter, a stock solution collecting barrel, a transfer barrel, an automatic fine filter and a filtrate recycling barrel which are sequentially connected through pipelines, and the transfer barrel is respectively communicated with a clear water washing barrel and a concentrated solution collecting barrel through pipelines. According to the characteristics of the cutting waste liquid and the cutting washing water, the cutting waste liquid and the cutting washing water are subjected to classified treatment and are recycled to respective procedures, and wastewater recycling is easier to realize; by controlling the precision of a nano ceramic membrane of the small automatic fine filter, harmful substances in the cutting waste liquid are removed in time, useful substances are reserved, and ...

Distributed photovoltaic openable capacity adjusting method and device, medium and equipment

The invention provides a distributed photovoltaic openable capacity adjusting method and device, a medium and equipment, and the method comprises the steps: obtaining the photovoltaic in-transit capacity corresponding to a 220kV transformer substation and the minimum load of the 220kV transformer substation, calculating the first openable capacity of the 220kV transformer substation according to the photovoltaic in-transit capacity corresponding to the 220kV transformer substation and the minimum load of the 220kV transformer substation, and obtaining the first openable capacity of the 220kV transformer substation according to the first openable capacity of the 220kV transformer substation; and a second openable capacity corresponding to the subordinate transformer substation is obtained, the subordinate transformer substation receives the electric power provided by the 220kV transformer substation, and the target openable capacity of the subordinate transformer substation is adjusted according ...

Underground ventilation monitoring device

The invention discloses an underground ventilation monitoring device which comprises a locking mechanism and two oppositely-arranged air doors, each air door is connected with a steel wire rope, the other end of each steel wire rope is connected with a gravity part, the locking mechanism further comprises a shell and a locking block movably arranged in the shell, and the locking block is movably arranged in the shell. The two gravity pieces are hung in the shell side by side, the secondary locking rod is movably connected in the shell and located above the locking block, and in the ascending process, the gravity pieces extrude the locking block and then extrude the secondary locking rod, so that the secondary locking rod limits the locking block. According to the underground ventilation monitoring device, in the ascending stroke of the gravity piece, the locking block is firstly extruded to turn over, and then the turned locking block is locked through the secondary locking rod, so that ...

Micro-nano alloying method for manufacturing high-strength and high-toughness TZM molybdenum alloy

The invention discloses a micro-nano alloying method for manufacturing a high-strength and high-toughness TZM molybdenum alloy, and relates to the technical field of powder metallurgy. S2, preparing a solution; s3, adding the material into a powder homogenizing device; s4, mixing the materials to obtain mixed powder; s5, drying to obtain TZM molybdenum alloy precursor powder; and S6, preparing the TZM molybdenum alloy. The high-strength and high-toughness TZM molybdenum alloy is reasonable in design, the prepared TZM molybdenum alloy mixture is processed through subsequent pressing, sintering and rolling processes, the tensile strength of the prepared high-strength and high-toughness TZM molybdenum alloy is larger than 1100 MPa, the ductility is larger than 7%, and the high-strength and high-toughness TZM molybdenum alloy has excellent comprehensive performance. The scheme is reasonable in design, uniform in alloy element addition, easy to control and suitable for various-scale production ...

Resourceful treatment method and equipment for nitrogen-containing waste gas

The invention relates to the technical field of nitrogen-containing waste gas resourceful treatment, and particularly discloses a nitrogen-containing waste gas resourceful treatment method and equipment, and the method comprises the following steps: (a) preparing a phosphoric acid dilute solution; (b) primary absorption; (b1) inputting the dilute phosphoric acid solution into a first atomizer; (b2) conveying the nitrogen-containing waste gas to a first gas distributor; (b3) carrying out countercurrent contact reaction on the dilute phosphoric acid solution and the nitrogen-containing waste gas to generate a first mixed solution; (c) catalytic oxidation; (c1) filling the fixed bed reactor with a solid-phase catalyst; (c2) conveying the treated waste gas to a fixed bed reactor; (c3) introducing oxygen into the fixed bed reactor; (d) secondary absorption; (d1) conveying the mixed residual waste gas and oxygen to a second gas distributor; and (d2) inputting the potassium hydroxide solution ...

Small molecule compound for preventing and treating mycotoxin poisoning as well as preparation method and application of small molecule compound

According to the small molecule compound for preventing and treating mycotoxin poisoning and the preparation method and application thereof, the novel functional food feed for preventing and treating mycotoxin poisoning provided by the invention reduces the loss caused by mycotoxin in the breeding industry to a certain extent, and if a large amount of the small molecule compound is put into actual production and use, the production cost is reduced. And the estimated economic benefit of the annual rescue can reach tens of millions of yuan.

Dispatching method, device and equipment for active voltage regulation support of micro-grid and storage medium

The invention provides a scheduling method, device and equipment for active voltage regulation support of a micro-grid and a storage medium, and the method comprises the steps: obtaining the electric quantity parameters of each node in a target time period, the electric quantity parameters comprising the voltage of each connection point, and the active power, reactive power and output of each power generation device; solving a voltage regulation support model based on a non-dominated sorting genetic algorithm according to the electric quantity parameters, a pre-constructed voltage regulation support model of the power distribution network and the micro-grid and a pre-constructed scheduling optimization constraint condition; wherein the voltage regulation support model comprises a pre-constructed voltage offset model of the power distribution network and a total cost model of active voltage regulation of the micro-grid, and the scheduling optimization constraint conditions comprise a first ...

Voltage spike absorption circuit of energy storage inverter rectifier and control method of voltage spike absorption circuit

The invention discloses a voltage peak absorption circuit of an energy storage inverter rectifier and a control method of the voltage peak absorption circuit. The voltage peak absorption circuit comprises a PWM control circuit, a resonant transformation circuit and a peak absorption circuit, the PWM control circuit is used for controlling the stability of voltage output from the input end through switching on and switching off of a switching tube; the resonant voltage transformation circuit is used for performing voltage transformation regulation and control on the voltage in the process of transmitting the voltage from the input end to the load; and the peak absorption circuit is used for suppressing the generated peak voltage and oscillation when the voltage is input to the load. The circuit is simple in design, few in used components, high in peak absorption capacity, capable of improving mass production while simplifying the circuit, capable of reducing the heating value of a product ...

Lactobacillus johnsonii N5 and application thereof in preventing and treating enteritis and diarrhea

The invention relates to a strain of Lactobacillus johnsonii N5 and application thereof in prevention and treatment of enteritis and diarrhea, the strain of Lactobacillus johnsonii N5 is preserved in the China Center for Type Culture Collection on February 10, 2023, and the preservation number is CCTCC NO: M2023104. The lactobacillus johnsonii N5 is separated from piglet excrement microorganisms capable of resisting heat stress induced diarrhea. The lactobacillus johnsonii N5 has the effect of relieving enteritis and diarrhea, which is specifically reflected in that the expression of intestinal epithelial tight junction protein and cytoprotective heat shock protein 70 is obviously enhanced, the immune balance of animal intestinal T cells is improved, the immune tolerance is enhanced, and the inflammation degree of the animal intestinal and the occurrence of diarrhea diseases are reduced. Therefore, the lactobacillus johnsonii N5 has a remarkable effect in preventing and treating diarrhea ...

Article transfer protection device for prevention and control of infectious diseases

The invention relates to the technical field of infectious disease prevention and control, in particular to an article transfer protection device for infectious disease prevention and control, which comprises a cabinet body, a storage door, driving devices, a shielding transfer device and a pressurizing disinfection device, the driving devices are mounted on the left and right inner walls of the cabinet body, and the shielding transfer device is mounted on a screw rod. The lower ends of the outer walls of the two adjusting nuts on the left side are each provided with a pressurization disinfection device. The storage cabinet is reasonable in structural design, the cabinet body can be placed outside a doorway to be used as a transfer cabinet, the shielding transfer devices on the two sides can draw close to shield when the storage door is opened, a certain anti-theft effect can be achieved, when the storage door is closed, the shielding transfer devices can be folded, express items can fall ...

Brown waste liquid reduction treatment method

The invention relates to a brownification waste liquid reduction treatment method. The method comprises the following steps: (1) removing a hydrogen peroxide stabilizer; (2) decomposing hydrogen peroxide; (3) low-temperature evaporation and concentration; (4) solidifying the concentrated solution; and (5) directly pricing and carrying out outsourcing treatment on the concentrated solution. The brownification waste liquid reduction treatment method provided by the invention can quickly, efficiently and safely treat COD (Chemical Oxygen Demand) degradation-resistant brownification waste liquid, has the advantages of few treatment process steps, low cost, low equipment investment and strong adaptability, is particularly suitable for small-scale treatment, and has higher market potential.

Urban sewage treatment system

The invention provides an urban sewage treatment system, which comprises a plurality of diversion wells, a plant treatment pool and a long communication pipeline, the plurality of diversion wells are communicated with the plant treatment pool through the long communication pipeline, the urban sewage treatment system is also provided with a front reservoir, the front reservoir is arranged close to the plant treatment pool, the front reservoir is communicated with the long communication pipeline, and the long communication pipeline is communicated with the front reservoir. The front end of the sewage treatment system is provided with a diversion well to divert sewage and rainwater, so that the treatment pressure of a sewage treatment plant in rainy days is reduced; a front reservoir is arranged near a sewage treatment plant, and is introduced and treated to flow back to the treatment plant in a peak period, so that the sewage treatment pressure in the peak period is effectively relieved.

High-selectivity polyamide nano-composite membrane for lithium-magnesium separation and preparation method of high-selectivity polyamide nano-composite membrane

The invention relates to a high-selectivity polyamide nano-composite membrane for lithium-magnesium separation and a preparation method thereof. The polyamide nano-film is formed by combining a lower layer and an upper layer through amido bonds, wherein the lower layer is a polyamide dendritic macromolecule porous layer which has water solubility, can be protonated and is positively charged; the structure of the positively charged polyamide dendritic macromolecule is composed of an aliphatic core (G0), an aliphatic branched structure (G0 to Gn-1) and an aromatic end-capping structure (Gn), the molecular structure general formula of the polyamide-amine dendrimer is shown in the specification, the high-selectivity polyamide nano-film is prepared by the method; the Li < + > retention rate is-15%-15%, the Mg < 2 + > retention rate is 98% or above, the calculated selectivity is 40-100, and the lithium magnesium screening selectivity is excellent. The permeation flux and Li < + >/Mg < 2 + > selectivity ...

Heat dissipation type high-low voltage switch cabinet and heat dissipation cooling method

The invention discloses a heat dissipation type high-low voltage switch cabinet and a heat dissipation cooling method, and belongs to the technical field of switch cabinets, the heat dissipation type high-low voltage switch cabinet comprises a cabinet body, a refrigerator, a low-voltage element cooling loop and a high-voltage element cooling loop, the refrigerator, the low-voltage element cooling loop and the high-voltage element cooling loop are arranged in the cabinet body, the low-voltage element cooling loop is used for cooling low-voltage electrical elements in the cabinet body, the high-voltage element cooling loop is used for cooling high-voltage electrical elements in the cabinet body, and during working, the low-voltage element water-cooling pipe valve and the connecting pipe valve are opened, the water outlet pipe valve and the water inlet pipe valve are closed, and the low-voltage element water-cooling pipe valve and the high-voltage element water-cooling pipe valve are opened ...

High-uniformity spraying device suitable for thermal insulation coating of outer doors and windows

The invention discloses a high-uniformity spraying device suitable for thermal insulation coating of outer doors and windows, which comprises a connecting box, a transfer pump, a stirring motor, a box body, a stirring rod, a stirring shaft, a lifting screw rod, a lifting rod, a limiting slide rail, a limiting rod, a moving seat and a clamping block, a linear sliding rail is fixedly connected to one side of the box body, a separation box is fixedly connected to the center of one side of the box body, a mounting box is fixedly connected to one end of the separation box, and a first motor is fixedly connected to the interior of the mounting box; according to the device, in the spraying process, a discharging disc is rotated, heat insulation coating is conveniently and evenly sprayed to the outer doors and windows, so that the spraying uniformity of the heat insulation coating is improved, meanwhile, a containing box storing the heat insulation coating is conveniently moved out of the interior ...

Parameterized constraint variant method for multi-source heterogeneous mechanical simulation model

The invention belongs to the field of computer-aided design and computer-aided engineering software development, and provides a parameterized constraint variant method of a multi-source heterogeneous mechanical simulation model. Geometric information is extracted, a mechanical simulation model geometric assembly relation and design constraints are obtained, simulation model geometric information space coordinate points are extracted, and hierarchical mapping is carried out to form a variable multi-level agent geometric model; extracting space coordinate point information of the multistage proxy geometric model to form a constraint variant model adaptive to radial basis function variants; extracting editable variables adaptive to radial basis function variants from geometric information in a grading manner, parameterizing the editable variables, and constructing a parameterized multi-stage variant template; sequentially performing constraint variant post-processing according to the hierarchy ...

Intelligent transportation and installation method for shield tunnel steel pipes

An intelligent transportation and installation method for shield tunnel steel pipes comprises the steps that firstly, an intelligent transportation and installation trolley for the shield tunnel steel pipes is manufactured, and the trolley comprises a cable take-up and pay-off trolley, a single circle supporting transport trolley, a left circle supporting transport trolley and a right circle supporting transport trolley; the manufactured trolley bears the hoisted steel pipe, the single circle supporting transport vehicle moves to the left side of the steel pipe, and the left circle supporting transport vehicle and the right circle supporting transport vehicle are located on the right side of the steel pipe; the steel pipe is supported by the circle supporting rod; the ranging laser radar monitors steel pipe transportation; when the steel pipe is transported in place, the right circle-supporting transport vehicle enters the installed steel pipe, and an upper circle-supporting supporting ...

Current detection device and detection method thereof, and charging equipment

The invention discloses a current detection device and a detection method thereof, and charging equipment, the current detection device comprises a seat body and a plug, the seat body is provided with a slot, the surface of the seat body is provided with a magnetic member, the plug is detachably inserted in the slot, the plug is provided with a first ground wire and a detection module electrically connected with the first ground wire, and the detection module is electrically connected with the first ground wire. The detection module is provided with a magnetic switch corresponding to the magnetic piece; the first ground wire and the detection module form a detection loop; when the plug is inserted into the seat body, the magnetic piece activates the magnetic switch, so that the detection loop carries out current detection. Through the current detection device, the magnitude of input current can be detected and recognized, and the magnitude of output current can be adjusted, so that electric ...

Block chain integration system and method for supporting quick chaining of business application

The invention provides a block chain integration system and method for supporting quick chaining of a business application, and the system comprises a business modeling module which is used for determining business model data corresponding to a to-be-chained business application; the business uplink configuration module is used for determining business uplink configuration data corresponding to the business model data; the intelligent contract module is used for determining a target intelligent contract corresponding to the business model data; and the block chain service module is used for performing uplink processing according to the business model, the business uplink configuration data and the target smart contract. Therefore, the application difficulty of the block chain technology in an actual business scene is simplified, the business application can be supported to be quickly chained, and the method has a very good popularization value.

Preparation method and application of zinc sulfide homogeneous out-phase junction photocatalyst

The invention discloses a preparation method and application of a zinc sulfide homogeneous out-phase junction photocatalyst, firstly wurtzite zinc sulfide is synthesized by adopting a hydrothermal method, then wurtzite zinc sulfide is successfully loaded on ZIF-L through in-situ compounding, the compound is subjected to in-situ sulfuration to synthesize a zinc sulfide homogeneous out-phase junction, and the zinc sulfide homogeneous out-phase junction photocatalyst is obtained. The formation of homogeneous out-phase junctions significantly inhibits the recombination of photo-induced electron-hole pairs, and compared with pure zinc sulfide, the photocatalytic hydrogen production performance is significantly improved. Particularly, the impedance value of the zinc sulfide homogeneous out-phase junction photocatalyst prepared in the embodiment 2 is obviously reduced, the separation efficiency of photo-induced electron-hole pairs is obviously improved, and the photocatalytic hydrogen production ...

Binding type explosive cartridge smooth blasting construction method

The invention relates to the field of tunnel construction methods, in particular to a binding type explosive cartridge smooth blasting construction method. Comprising the following construction steps: S1, surveying and setting out; s2, drilling operation is carried out; s3, danger removal and bottom clearing; s4, charging and blasting; s41, explosive materials are selected; s42, the installation mode of blasting materials is set; according to the blasting requirement, firstly, blasting materials are evenly fixed to the operating rod, and then the operating rod extends into the peripheral hole; during charge blasting, according to specific blasting requirements, blasting materials are uniformly fixed on the operating rod in advance, and then the operating rod extends into a drilled hole, so that on one hand, cartridges can be conveniently fixed on the operating rod according to a certain distance according to the blasting range of the cartridges; and the occurrence of the phenomenon that ...

Method, device and equipment for analyzing stability of synchronous converter parallel system

The invention provides a method, a device and equipment for analyzing the stability of a synchronous converter parallel system, the parallel system comprises a plurality of groups of grid-connected units which are in weak connection at the same grid-connected point, each grid-connected unit comprises an equivalent power grid and a voltage source converter which are connected, and the method comprises the following steps: acquiring electric quantity parameters when all grid-connected units are disturbed, the electric quantity parameters comprise the voltage of an interfered point, equivalent resistance and reactance from the grid-connected point to the interfered point, and a d-axis component and a q-axis component of current injected into the power grid by the voltage source converter; inputting the electric quantity parameters into a pre-constructed static stability judgment model, and determining whether a balance point exists or not; and if the balance point exists, performing linearization ...

Lightweight embedded data acquisition equipment data transmission and anti-control method

The invention relates to the technical field of Internet of Things, in particular to a lightweight embedded data acquisition equipment data transmission and anti-control method, which comprises the following steps: sending an HTTP request Req to a server through an HTTP protocol by an equipment side, and sequentially checking the equipment side id, the data acquisition time dt, each acquired numerical value Di, a string S formed by each acquired switching value and an alarm status word ST by the server; the method comprises the following steps that: a server side sends a request to an equipment side, a string R is spliced to serve as response content of the server side to the request of the equipment side, and the equipment side obtains and analyzes the response content R of the server side to obtain new working parameters, a next command to be executed and parameters, and starts a next data transmission and anti-control flow, and the request and the corresponding content are easy to understand ...

Energy storage optimization method and device of novel power system, terminal and storage medium

The invention provides a novel energy storage optimization method and device for a power system, a terminal and a storage medium. The novel power system comprises a distributed energy source and an energy storage system. The method comprises the following steps: constructing an active power fluctuation model based on a distributed energy output model and an energy storage model of an energy storage system; and optimizing parameters of the energy storage system based on the active power fluctuation model and a preset energy storage constraint model by taking the minimum active power fluctuation as an optimization target. According to the invention, the active power fluctuation model is constructed based on the output model of the distributed power supply and the energy storage model of the energy storage system, and the influence of the parameters of the energy storage system on the active power fluctuation of the novel power system is considered on the premise of considering the power output ...

Pure hardware DC input overvoltage detection circuit

The invention relates to the technical field of overvoltage detection circuits, and discloses a pure hardware direct current input overvoltage detection circuit, under-voltage input is as follows: Vin input voltage is divided by resistors R1 and R2 and then serves as Q1 grid voltage, and if the voltage is greater than Q1 Vgs starting voltage, Q1 is normally started; otherwise, directly entering the input undervoltage; according to normal input, it can be known from a circuit in the following figure that after Q1 is normally started, in a similar way, Vin input voltage is divided by R8 and R9 and then serves as Q5 grid voltage, and if the voltage is larger than Q5 Vgs starting voltage, Q5 is normally started; otherwise, directly entering the input undervoltage; according to overvoltage input, it can be known from a circuit in the following figure that if the circuit is expected to work in a normal range, the value of a ZV1 voltage stabilizing diode must be smaller than two times of the Q1Vgs ...

Rod-shaped crop manipulator

The invention relates to the field of mechanical arms, and particularly discloses a rod-shaped crop mechanical arm which comprises an operation device, a circumferential driving device, a lifting driving device and a moving device. The operation device comprises a manipulator and an operation mechanism; the circumferential driving device comprises a support, a circular guide rail, a moving trolley and a linear driving mechanism, and the moving trolley is installed on a base of the multi-degree-of-freedom mechanical arm and can do circular motion along the circular guide rail; the circular guide rail comprises a first arc-shaped guide rail arranged on the support, second arc-shaped guide rails arranged on the two sides of the first arc-shaped guide rail and an overturning driving mechanism used for driving the second arc-shaped guide rails to be overturned to the horizontal state or the vertical state. When the second arc-shaped guide rails on the two sides rotate to the horizontal state ...

Coal slime reduction device for coal preparation plant

The invention discloses a coal slime reduction device for a coal preparation plant, which comprises a rack, a floating screen frame is arranged on the rack, a plurality of screening units are arranged on the rack, and each screening unit comprises fixed cross beams fixed on the rack at equal intervals; the floating cross beams are fixed to the floating screen frame at equal intervals, and the floating cross beams and the fixed cross beams are arranged in a staggered mode; two sides of the elastic screen are respectively fixed on the fixed cross beam and the floating cross beam; and the adjusting mechanism is used for independently adjusting the vibration range of each floating cross beam. According to the coal slime reduction device for the coal preparation plant, the adjusting mechanism is arranged, so that the floating cross beams of all the screening units can be independently adjusted, the vibration range of each floating cross beam is changed, and the vibration range of the floating ...

Simulation device for radiation disturbance generated by gas-insulated metal-enclosed switchgear

The invention discloses a simulation device for radiation disturbance generated by a gas insulated metal-enclosed switchgear, which comprises a transverse electromagnetic wave transmission chamber main body, a shielding bearing platform, a bracket, an adjusting box and an insulating support, and is characterized in that the transverse electromagnetic wave transmission chamber main body is arranged on the shielding bearing platform, the bracket is arranged at the bottom of the shielding bearing platform, and the adjusting box is arranged at the bottom of the bracket; the insulating support is arranged at the bottom of the adjusting box; the transverse electromagnetic wave transmission chamber body comprises a lower shielding cover arranged on the top of the shielding bearing platform and an upper shielding cover arranged on the top of the lower shielding cover, a transmission space is formed between the upper shielding cover and the lower shielding cover, and a plurality of medium supporting ...

Micro-energy network source load matching method and system

The invention discloses a micro energy network source load matching method and system based on new energy consumption. The method comprises the following steps: proposing a generalized load concept; defining the maximum load, the minimum load and the peak-valley difference rate of the generalized load; calculating to obtain the fluctuation ratio of the daily average load; defining and calculating the curve slope correlation degree of the daily average load and the generalized daily average load in the regional power grid; the source load similarity is calculated through the calculated curve slope correlation degree; substituting the source load similarity, the generalized daily load peak-valley difference rate and the load fluctuation rate into a formula to obtain a source load matching degree; and comparing the solved source-load matching degree with a threshold value obtained by empirical data, and if the source-load matching degree is smaller than the threshold value, starting configuration ...

System for optically measuring repose angle

The invention discloses a system for optically measuring a repose angle, which relates to the technical field of measurement and comprises a bottom plate, a top plate and a server, the bottom plate is in a hollow rectangular box shape; a front side plate is movably mounted on the outer front side wall surface of the bottom plate and is used for forming a closed space with the bottom plate, the projection screen and the right side plate; the right side plate is used for enabling the light source to irradiate the powder stack to form projection on the projection screen after being opened; and the server is used for receiving the powder pile projection video shot by the camera, dividing the video into a plurality of pictures of different angles of the powder pile through picture cutting, detecting the size of a repose angle in each picture through a repose angle recognition algorithm, and averaging the results of each picture to obtain the final repose angle of the powder pile. Non-contact ...

Mining flame-proof high-voltage junction box fault identification method and device, medium and equipment

The invention belongs to the technical field of high-voltage junction box fault identification, and provides a mining flame-proof high-voltage junction box fault identification method, a mining flame-proof high-voltage junction box fault identification device, a medium and equipment. The fault identification method for the mining flame-proof high-voltage junction box comprises the following steps: acquiring a current pulse signal at the mining flame-proof high-voltage junction box; extracting four features of pulse time, peak energy, effective frequency and maintenance time of the current pulse signal to form a four-dimensional feature vector; and clustering the four-dimensional feature vectors to obtain a category corresponding to the current pulse signal so as to judge whether the mine explosion-proof high-voltage junction box has a fault or not.

Unmanned aerial vehicle landing arresting device and arresting method

The invention relates to an unmanned aerial vehicle landing arresting device and method, the device comprises a fixed part, a movable part and an arresting part, and the arresting part is connected with the fixed part and the movable part at the same time; the fixing part comprises a first limiting unit and a rotating unit, and the first limiting unit is connected with the rotating unit; the arresting part comprises an arresting hook arm, an arresting hook and a second limiting unit, one end of the arresting hook arm is connected with the rotating unit, and the arresting hook is arranged at the other end; one end of the second limiting unit is connected with the rotating unit, the other end is connected with the arresting hook arm, and the arresting hook arm rotates relative to the rotating unit under the limitation of the second limiting unit. The unmanned aerial vehicle arresting hook is in a retracted state during takeoff and sailing, the aerodynamic shape of the unmanned aerial vehicle ...

Spraying dust removal device for touch sensor of belt conveyor

The invention discloses a belt conveyor touch sensor spray dust removal device which comprises a belt conveyor used for conveying coal and further comprises a touch sensing unit used for detecting the working state of the belt conveyor; the multiple supporting units are arranged on the two sides of the belt conveyor in a stacked mode; the spraying unit is arranged on the supporting unit, and the spraying unit controls the water spraying amount based on a signal of the touch sensing unit. The position of the spraying unit is flexibly adjusted through the arranged supporting unit, the position of the spraying unit is conveniently and reasonably arranged so that spraying dust removal can be conducted on coal on the belt conveyor, and meanwhile the spraying amount and the spraying direction are adaptively adjusted through the arranged spraying unit according to the number of the coal conveyed on the belt conveyor; and it is guaranteed that the spraying unit saves resources, and meanwhile dust ...

Aerosol fixing device and aerosol generating device

The invention provides an aerosol fixing device and an aerosol generating device.The aerosol fixing device comprises a mounting base, an aerosol generating device and a control device, the mounting base comprises an atomization cavity, and the atomization cavity is used for containing an aerosol generating substrate; the microwave leading-in structure is arranged on the mounting base, and the output end of the microwave leading-in structure is located in the atomization cavity; the conductor piece is arranged on the mounting base, and at least one part of the conductor piece is located on the side wall of the atomization cavity. The distribution intensity of the magnetic field in the atomization cavity is changed through the conductor piece, on one hand, it can be guaranteed that the aerosol generating matrix is efficiently heated through microwaves, and on the other hand, it can be guaranteed that the aerosol generating matrix is uniformly heated through the microwaves.

Charging column queuing method and device based on bus perception and medium

The invention provides a charging column queuing method and device based on bus perception and a medium, relates to the technical field of priority queuing of bus charging columns, is applied to a bus station, and comprises the following specific steps: S1, obtaining a bus list of the bus station, the bus list is a list of buses departing at the bus station; s2, at the time T, the existing electric quantity of each bus, the distance between the bus and the charging column, the urgency value of the bus line where the bus is located and the charging state of the bus are obtained, curve conversion preprocessing is carried out on the electric quantity, the distance, the urgency value and the charging state of the bus, and corresponding preprocessing values are obtained; and S3, performing charging priority numerical value calculation on each bus according to the pre-processing numerical value to obtain the charging priority numerical value of each bus, and sorting the buses according to the ...

Automatic test equipment for filter

The invention relates to the technical field of testing equipment, and provides automatic testing equipment for a filter, which can be used for detecting a locking type filter tuning screw rod device after assembly, is relatively good in detection reliability, relatively high in detection efficiency and more practical, and comprises a detection workbench, a mounting vertical frame and an auxiliary vertical frame, the installation vertical frame and the auxiliary vertical frame are fixedly connected to the top end of the detection workbench, the left end of the installation vertical frame is flush with the left end of the detection workbench, the right end of the auxiliary vertical frame is flush with the right end of the detection workbench, and a driving roller and a driven roller are rotationally connected between the installation vertical frame and the auxiliary vertical frame. A conveying belt is in transmission connection between the driving roller and the driven roller, a plurality ...

Phase modifier, phase modifier system, application and method for calculating power adjusting time

The invention discloses a phase modifier, a phase modifier system, application and a method for calculating power regulation time, and relates to the technical field of generator control. The phase modifier comprises a motor shell, a motor rotor, a motor stator, a winding, a motor shaft and a flywheel, the flywheel is located in the motor shell, and the flywheel is connected with the motor rotor; the phase modifier system comprises the phase modifier, a controller and a bidirectional transducer, the controller is connected with a motor stator in the phase modifier, and a motor rotor in the phase modifier is connected with the bidirectional transducer; the purpose comprises the step of reducing the capacity of the controller based on the phase modifier. The method for calculating the power adjusting time is based on the phase modifier and comprises the step of obtaining the power adjusting time, and the step of obtaining the power adjusting time comprises the step of obtaining the power ...

Method for producing seamless tube by adopting staged cooling process

The invention discloses a method for producing a seamless tube by adopting a staged cooling process. The method comprises the following steps: 1) smelting and casting, 2) soaking, 3) perforating, 4) continuous rolling, 5) reheating, 6) cooling, 7) straightening, 8) quenching and 9) tempering. The staged cooling process is adopted in the on-line controlled cooling and water quenching processes after rolling, the rigidity and straightness level of the steel pipe are improved, distribution of phase change and thermal stress on the whole wall thickness of the steel pipe is effectively controlled, precipitation of ferrite in the seamless pipe structure is controlled, and under the condition that the inner wall of the prepared seamless pipe is not cracked, the quality of the seamless pipe is improved. The low-residual-stress seamless tube can be obtained without additionally adopting annealing and physical destressing means, and the process is simple and easy to operate.

Ocean structure steel material extensibility detection device and method

The invention discloses an ocean structure steel material extensibility detection device and method, and relates to the technical field of steel material extensibility detection.The ocean structure steel material extensibility detection device comprises a sleeve, the outer side of a two-way fastening screw is sleeved with a clamping plate, and a measuring rod is stably connected with the sleeve through a four-way setting assembly; the four-way setting assembly is used for connecting and limiting the measuring rod through a setting and moving assembly, and a moving and buffering assembly matched with the four-way setting assembly is arranged on the inner side of the sleeve. According to the invention, through the arrangement of the fixed moving assembly and the moving buffering assembly, a second guide pull pin injects gas in a gas cavity sleeve into a gas buffering bin through a gas pressing plug while the measuring rod is out of limit through the fixed moving assembly, and then the gas ...

Portable brineelectrolysis generating device

... 本实用新型提供一种移动式电解水发生装置，包括储水桶、控制装置、循环电解装置、消毒装置，均设置在移动车体上。通过循环电解装置使储水桶中的水在循环电解装置中循环重复电解，以获得较高有效氯浓度的电解水，通过动力装置，移动驱动装置和移动车体将电解水送到需要消毒的场所，通过消毒装置对需要消毒的对象进行消毒杀菌处理。本实用新型通过把电解水装置集成到移动车体上，操作移动简单方便，与固定式电解装置相比较有显著优势。 ...

Dust-removing moisture-proof treatment device for electrical automation elements

The utility model provides an electrical automation element dedusting moistureproof treatment device, which belongs to the technical field of automation element dustproof moistureproof treatment and comprises a treatment box, a limiting column is fixedly connected to the inner bottom wall of the treatment box, a sliding plate is connected to the outer surface of the limiting column in a sliding mode, and a sliding plate is connected to the sliding plate in a sliding mode. A containing disc is fixedly connected to one side of the sliding plate, a scale strip is arranged on the outer surface of a limiting column, and an air heater is fixedly connected to the inner top wall of the treatment box. According to the dust-removing and moisture-proof treatment device for the electrical automation element, through the cooperative arrangement of the treatment box, the air heater, the limiting column, the sliding plate, the placing disc, the scale strip and the positioning bolt, a worker can place ...

Subsynchronous resonance suppression method and device, electronic equipment and storage medium

The invention provides a subsynchronous resonance suppression method and device, electronic equipment and a storage medium, and belongs to the field of stable operation of a power system.The method comprises the steps that a second-order transfer function G (s) controlled by a system VSG and an improved system transfer function G '(s) after a damping link is added are obtained, and the system transfer function comprises damping compensation parameters; and then acquiring a system frequency and an energy storage system SOC, when the energy storage system SOC is in a first range, adjusting a damping compensation parameter based on an inertia constant and a damping coefficient, and adjusting a system inertia coefficient based on the system frequency, and when the energy storage system SOC is not in the first range, adjusting the system inertia coefficient based on the energy storage system SOC. According to the invention, the service life of energy storage can be prolonged, and the operation ...

Intelligent canteen nutrition and health management method and system

The embodiment of the invention discloses an intelligent canteen nutrition and health management method and system. The method comprises the following steps: a canteen kitchen management module creates a dish nutritional ingredient real-time evaluation model and a dish traffic light system, and creates a menu nutrition collocation real-time evaluation model; the user before-meal pre-selection module can perform pre-meal adjustment according to a meal individual nutrition intake evaluation model; the intelligent nutrition machine and the nutrition and health service module are used for providing real-time close-fitting nutrition balancing suggestions and continuously providing close-fitting nutrition and health guidance service for the user; formulating a group nutrition balanced supply scheme; according to the invention, body health characteristic data of the user and dish nutrition data of a canteen are combined, a good diet scheme suitable for the health of the user is made for each user ...

Method for rapidly preparing high-density C/C composite material based on polyarylacetylene resin

The invention discloses a method for rapidly preparing a high-density C/C composite material based on polyarylacetylene resin, and aims to solve the problems of long preparation period, low graphitization degree, poor ablation resistance and the like of the existing C/C composite material. The preparation method comprises the following steps: 1, mixing the polyarylacetylene resin and the solvent; 2, carrying out vacuum impregnation on the low-viscosity resin solution and the carbon fiber woven body; thirdly, isostatic pressing treatment is conducted; 4, curing in an oven; 5, cracking treatment; 6, carrying out graphitization treatment; 7, dipping the graphitized C/C composite material into a low-viscosity resin solution, and then carrying out vacuum dipping, isostatic pressing treatment, curing treatment, cracking treatment and graphitization treatment; and 8, repeating the step 7 for multiple times. The density of the obtained C/C composite material can be larger than 1.90 g/cm < 3 >, ...

Insulating platform for hoisting pole switch

The invention relates to an insulating platform for hoisting a pole-mounted switch, and belongs to the field of power equipment. The device comprises a winch and is structurally characterized by further comprising a horizontal supporting mechanism, an inclined supporting mechanism and a connecting shaft, the horizontal supporting mechanism and the inclined supporting mechanism are rotationally connected through the connecting shaft, and the winch is arranged at the bottom of the horizontal supporting mechanism; a horizontal fixing plate in the horizontal supporting mechanism is fixedly arranged on a horizontal fixing seat, a horizontal rotating plate is rotationally arranged on the horizontal fixing plate through a horizontal connecting lifting ring, one end of a horizontal supporting frame is fixedly arranged on the horizontal rotating plate, and an inclined fixing plate in the inclined supporting mechanism is fixedly arranged on an inclined fixing seat. The inclined rotating plate is ...

Micro-energy network group hierarchical optimization control method and system based on scene construction

The invention discloses a hierarchical optimization control method and system for a micro-energy network group based on scene construction. The method comprises the following steps: performing mathematical modeling on each type of energy in a micro-energy network; establishing a probability density distribution function of wind power, photovoltaic power and load; five Copula functions are introduced, and wind power and photovoltaic random variable joint distribution relations of the five Copula functions are established respectively; judging the goodness of fit of each model by using an Euclidean distance method, and determining an optimal Copula function; on the basis of the optimal Copula function, a typical application scene is generated through aggregation after sampling; considering the loss of wind and light abandoning, and establishing a double-layer coordination optimization model based on winter and summer scenes and taking the minimum operation cost of the micro-energy network ...

Multi-interface high-power energy storage power supply

The invention belongs to the technical field of energy storage power supplies, and particularly relates to a multi-interface high-power energy storage power supply, which comprises a PCBA (Printed Circuit Board Assembly), the PCBA mainly comprises an AC (Alternating Current) inverter board, a battery pack and a DC (Direct Current) control board, the AC inverter board comprises a battery input port, an AC communication interface, a fan interface and AC1and AC2 outputs, and the battery pack comprises a battery and a BMS (Battery Management System) cell protection board. The BMS battery cell protection board communicates with the DC control board through a BMS communication interface, the DC control board comprises a battery input port, an AC inverter board interface, a BMS interface, a TYPE-C, S1, a main switch, S2, a lighting switch and S3, an AC switch, the product is light in weight, high in capacity, large in output power and convenient to carry, and can be used in different indoor or ...

Abnormal sound monitoring device and method for belt conveyor

The invention provides a belt conveyor abnormal sound monitoring device and method, and relates to the field of signal processing, and the device comprises a disc fiber fixing seat, a sound measurement optical fiber, an optical fiber sound measurement substation and a monitoring host. The fiber coiling fixing seats are longitudinally installed along the belt conveyor and used for collecting sound signals in the operation process of the belt conveyor in a segmented mode and transmitting the sound signals to the sound measuring optical fibers between the fiber coiling fixing seats. The optical fiber sound measurement substation is connected with the sound measurement optical fiber and is used for processing segmented sound signals on the sound measurement optical fiber and transmitting the segmented sound signals to the monitoring host; the monitoring host is connected with the optical fiber sound measurement substations and is used for automatically extracting acoustic characteristics of ...

Method for recovering andrographolide from crystallization mother liquor

The invention belongs to the technical field of medicine production, and particularly relates to a method for recovering andrographolide from crystallization mother liquor. The method comprises the following steps: step 1, taking crystallization mother liquor of an andrographolide extraction process, concentrating, adding a mixed solvent of absolute ethyl alcohol and dichloromethane, stirring and washing, and separating solids to obtain a crude recovery product of andrographolide; the weight ratio of absolute ethyl alcohol to dichloromethane in the mixed solvent is 1: (1-2.5); and 2, recrystallizing the crude recovered andrographolide product by using absolute ethyl alcohol to obtain the andrographolide. According to the method, the process steps and the process conditions are optimized, so that the total dosage of an organic solvent in the process can be reduced, and the total yield of andrographolide can be remarkably increased on the basis of ensuring the product content. Therefore, ...