Multi-pipe type high-temperature electromagnetic floating-bed dust remover

The invention relates to a multi-pipe type high-temperature electromagnetic floating-bed dust remover, and aims to provide the dust remover for removing dust in flue gas in high-temperature, high-pressure and high-corrosion occasions; the dust remover disclosed by the invention comprises a dust remover main body; the dust remover main body comprises an upper cylinder, an intermediate cylinder and a lower cylinder; a multi-pipe type floating-bed layer is arranged in the intermediate cylinder; an electromagnetic coil is arranged outside; the electromagnetic coil is connected to a direct-current power supply; the pipes of the multi-pipe type floating-bed layer are filled with magnetic particles; a gas inlet is arranged on the side wall of the lower cylinder; a filter material regeneration tank is arranged at the bottom; an automatic sluice valve plate is arranged between the lower cylinder and the filter material regeneration tank; a waste slurry outlet is arranged at the bottom of the filter ...

Solar dryer

The present invention relates to a solar dryer, which belongs to the field of new energy utilization. At least one material drawer is arranged in a drying box, a preheating air channel baffle is arranged between the rear wall of the drying box and the material drawer, the preheating air channel baffle and the drying box form a preheating air channel, a waste heat recovery heat exchanger is arranged under the material drawer, and the part of the drying box opposite to the waste heat recovery heat exchanger is provided with a fresh air inlet channel; and the lower end of a two-section finned heat tube is provided with a heat collection glass tube, the upper end of the two-section finned heat tube is arranged in the drying box, and the part of the two-section heat tube in the drying box is provided with fins. The solar dryer has a high drying speed and can save time; the solar dryer can also be prevented from being contaminated by insects and is clean and sanitary; and food can be dried at ...

Preparation method of high-surface-quality movable fast-assembly scaffold aluminum material

The invention relates to a preparation method of a high-surface-quality movable fast-assembly scaffold aluminum material, in particular to a preparation method of a high-surface-quality movable fast-assembly scaffold aluminum material. The invention aims to solve the problem that the inner surface of the pipe for the quick-assembly movable scaffold produced by the existing method is scratched. The method comprises the following steps: 1, surface treatment; 2, primary extrusion; 3, secondary extrusion; 4, cold rolling; 5, straightening; and 6, low-temperature annealing. The method is used for preparing the high-surface-quality movable fast-assembly scaffold aluminum material.

One-stage deoxidizing device for indirect heat-exchange forcible mixed exhaust steam recovery of condensate water and desalted water

The invention relates to a one-stage deoxidizing device for indirect heat-exchange forcible mixed exhaust steam recovery of condensate water and desalted water. A first water inlet pipe, a second water inlet pipe, a third water inlet pipe and a fourth water inlet pipe are connected onto a pressure-bearing buffer tank, wherein the first water inlet pipe and the third water inlet pipe are located on the upper layer, and the second water inlet pipe and the fourth water inlet pipe are located on the lower layer; mixed condensate water is introduced into the second water inlet pipe and the fourth water inlet pipe respectively after subjected to heat exchange with synthesis ammonia desalted water and conversion desalted water through a third heat exchanger and a fourth heat exchanger, the synthesis ammonia desalted water and the conversion desalted water are introduced into the first water inlet pipe and the third water inlet pipe respectively after subjected to heat exchange through the third ...

Two-stage deoxidizing device for indirect heat exchange of condensate water and desalted water

The invention relates to a two-stage deoxidizing device for indirect heat exchange of condensate water and desalted water. A first water inlet pipe, a second water inlet pipe, a third water inlet pipe and a fourth water inlet pipe are connected onto a pressure-bearing buffer tank, wherein the first water inlet pipe and the third water inlet pipe are located on the upper layer, and the second water inlet pipe and the fourth water inlet pipe are located on the lower layer; mixed condensate water is introduced into the second water inlet pipe and the fourth water inlet pipe respectively after subjected to indirect heat exchange with synthesis ammonia desalted water and conversion desalted water through a third heat exchanger and a fourth heat exchanger, the synthesis ammonia desalted water and the conversion desalted water are introduced into the first water inlet pipe and the third water inlet pipe respectively after subjected to heat exchange through the third heat exchanger and the fourth ...

Secondary deoxidizing device for performing indirect heat exchange and forced mixing on condensed water and desalted water and recovering exhaust steam

The invention relates to a secondary deoxidizing device for performing indirect heat exchange and forced mixing on condensed water and desalted water and recovering exhaust steam. A pressure-bearing buffer tank is provided with first and third water inlet pipes positioned on an upper layer as well as second and fourth water inlet pipes positioned on a lower layer; mixed condensed water is introduced into the second and fourth water inlet pipes respectively after undergoing indirect heat exchange with synthetic ammonia desalted water and transformed desalted water through third and fourth heat exchangers; the synthetic ammonia desalted water and transformed desalted water are introduced into the first and third water inlet pipes respectively after undergoing heat exchange through the third and fourth heat exchangers; buffer tank exhaust steam enters a first heat exchanger to be cooled into buffer tank exhaust steam condensed water, the buffer tank exhaust steam condensed water is replenished ...

Safety hand starter for ic engine

The safety hand starter for internal combustion engine can effectively prevent the operator from being injured by the starter when accident reverse rotation occurs, and is composed of a handle of override mechanism, a control wheel, a locating key, a rotating wheel and starting rod. On normal starting, the handle drives casing and starting rod to start engine. On reverse rotating, the starting rod and the rotating wheel run idle with the engine and the starter only rotates at a very small angle.

Automatic coloring method and device based on image segmentation

The invention provides an automatic coloring method and device based on image segmentation, and belongs to the technical field of object coloring. An image pickup system and an airbrush device are placed at the upper end of an objective table, a light system is arranged in a production environment, and the image pickup system, the airbrush device and the light device are all connected with a main control computer. An object is placed on the objective table, and a starting button device is pressed down to start working. The main control computer is used for processing images obtained by the image pickup system, and an obtained result is transmitted to the airbrush device to conduct automatic coloring. In the whole process, the objects only needs to be placed on the objective table manually, a computer is used for controlling automatic coloring, a full-automatic process is achieved, interactive operation of a user is reduced, implementation is very easy and convenient, the image processing ...

Device and preparation process for preparing spherical Co-covered nickel hydroxide

Preparation method of aluminum alloy bearing wheel die forging for tracked vehicle

The invention discloses a preparation method of an aluminum alloy load-bearing wheel die forging for a tracked vehicle, and relates to a preparation method of an aluminum alloy load-bearing wheel die forging. The problems that a bearing wheel of an existing tracked vehicle is large in weight, and an existing aluminum alloy die forging is poor in strength are solved. The preparation method comprises: taking an alloy ingot; and the aluminum alloy cast ingot is extruded into an aluminum alloy bar, the aluminum alloy bar is forged into an aluminum alloy cake blank, the aluminum alloy cake blank is finally subjected to compression molding, and the aluminum alloy bearing wheel die forging for the tracked vehicle is obtained. The aluminum alloy load-bearing wheel die forging for the tracked vehicle has high strength and light weight, the tensile strength can reach 540 MPa, the ductility can reach 8% or above, and the weight of a single load-bearing wheel is reduced by 40-60%. The strength meets ...

Thermoelectric refrigeration liquid cooling device

The invention relates to a thermoelectric refrigeration liquid cooling device, and belongs to a refrigeration plant. Thermoelectric refrigeration films and radiators are symmetrically arranged on two sides of a micro channel refrigeration exchanger; the micro channel refrigeration exchanger and a micro channel cooling plate are respectively arranged on the top and bottom of a hollow substrate; the micro channel refrigeration exchanger is provided with a liquid inlet and a liquid outlet which are connected by a hose; a water pump is arranged on the hose; two side walls of the micro channel refrigeration exchanger are symmetrically provided with micro channels; a plurality of micro channels are formed parallelly on the micro channel cooling plate; upper and lower runner division plates are arranged among the micro channels; and the micro channels on the micro channel refrigeration exchanger are communicated with those on the micro channel cooling plate. The thermoelectric refrigeration liquid ...

Core-pulling combined type forming mold for plate heat exchanger plate

The invention relates to a core-pulling combined type forming mold for a plate heat exchanger plate in the field of plate heat exchanger plate forming devices. The core-pulling combined type forming mold comprises a lower mold plate and an upper mold plate. An upper mold core and a lower mold core used for forming the plate in a compression mode are arranged between the upper mold plate and the lower mold plate. The upper mold core and the lower mold core are the same in vertical corresponding width, and are each formed by combining a plurality of blocks capable of being taken out. According to the core-pulling combined type forming mold for the plate heat exchanger plate, the length of the upper mold plate and the lower mold plate is designed according to the maximum length of plates of the same width, plates of different lengths can be formed in a compression mode by increasing or reducing blocks, on the corresponding positions, of the upper mold plate and the lower mold plate when the ...

Rapid positioner for drilling of plate heat exchanger frame plate

The invention relates to a rapid positioner for drilling of a plate heat exchanger frame plate in the technical field of large plate drilling. The rapid positioner for drilling of the plate heat exchanger frame plate comprises a metal sheet matched with the frame plate in size. Positioning holes corresponding to designed hole sites of the frame plate in size are formed in the metal sheet accurately. The metal sheet is arranged over the frame plate through corner hole positioning and center positioning. According to the rapid positioner, the metal sheet with the accurately machined positioning holes can be repeatedly used for drilling positioning of frame plates of the same specification, the situation that line drawing and punch positioning are conducted on the frame plate before each time of drilling is not needed, the preparation time before drilling of the frame plate is shortened remarkably, and drilling efficiency and drilling precision are improved.

Continuous material length measuring method and device

A continuous material length measuring method comprises the following steps: a static electricity generating and transmitting device is arranged at the head end of a production line, a static electricity measuring and eliminating device is arranged at the tail end of the production line, and the distance between the devices is fixed and accurately measured, and stored in a computer; a humidity sensor and a temperature sensor are installed in a production environment, and are connected to a main control computer; material parameters, production tasks and the like are input to the main control computer for storage; the time interval of static electricity generation by the static electricity generating device is set; the main control computer starts material length measurement after production starting according to a linkage mechanism; and the main control computer reports the production progress according to the material production length, and generates a stop signal at the end of production ...

Quick heavy die opening device

The invention relates to the field of forming die devices, in particular to a quick heavy die opening device. The quick heavy die opening device comprises a guide sleeve arranged between an upper die and a lower die and a guide rod matched with the guide sleeve, the lower end of the guide sleeve is fixed on a lower die plate, the upper end of the guide rod is fixedly connected with an upper die plate, a multistage hydraulic cylinder is arranged between the guide sleeve and the guide rod, the cylinder body of the multistage hydraulic cylinder is fixed with the guide sleeve, and a piston rod of the multistage hydraulic cylinder is connected with the guide rod. By means of the quick heavy die opening device, in the die opening process, the multistage hydraulic cylinder which is synchronous in action is used for pushing the guide rod to move up and down along the guide sleeve, so that the upper die and the lower die are opened, the opening action of the upper die and the lower die is good in ...

Fluorimetric determination method of cefpiramide sodium for injection

The invention discloses a fluorimetric measuring method of cefpiramide sodium for injection. The method comprises the following steps: keeping the concentration of a non-ionic surfactant TritonX-100 at 1.5*10<-3>mol/L, adding a test sample of cefpiramide sodium with the concentration range from 8.0*10<-6> to 8.0*10<-5>mol/L under a neutral condition, mixing uniformly, and measuring the fluorescence intensity after placing for 5 hours; and setting excitation wavelength at 280nm, the emission wavelength range as 290-450nm, the scanning velocity at 15-3000nm/min, the widths of excitation slit and transmitting slit at 2.5-20.0nm, and measuring the fluorescence intensity. In the invention, by utilizing the cefpiramide sodium, the TfitonX-100 fluorescent light can be quenched effectively, the detection of the test sample of the cefpiramide sodium for injection can be realized, the fluorimetric measuring method of cefpiramide sodium for injection is simple and convenient to operate, and is quick ...

Bietherifying process for synthesizing oxyfluorfen

A novel bietherifying process for preparing oxyfluorfen as herbicide from 3,4-dichlorotrifluotoluene and resorcinol includes three steps: condensation, nitrification and etherification. Its advantages include simple process, high output rate, high content and low cost.

Non-woven bag automatic positioning method based on computer vision

The invention discloses a non-woven bag automatic positioning method based on computer vision. The method comprises following steps: acquiring a real-time image of a non-woven bag on an assembly line through visual equipment; acquiring a front end line and a background image of the non-woven bag through an inter-frame difference manner; calculating a differential image of the k+n moment through a background subtraction method; calculating a novel front end line of the differential image; marking U at the position of the novel front end line; seeking four points on left and right end lines of the novel differential image; and calculating the deflection angle theta of the non-woven bag. By employing the method, the position of the front end line of the non-woven bag, the positions of the four points on the left and right end lines, and the deflection angle of the non-woven bag can be finally obtained, so that the non-woven bag is positioned.

Preparation method of Co-covered nickel hydroxide anode material with surface covered by rare earth compound

The invention relates to a preparation method of a Co-covered nickel hydroxide anode material with the surface covered by a rare earth compound, belonging to the field of materials. The preparation method is characterized by covering a certain amount of Yb(OH)3 or Er(OH)3 on the upper surface of the nickel hydroxide material covered by 2.0 percent Co(OH)2. The discharge capacity of nickel hydroxide covered by 2 percent Yb(OH)3 is enhanced by 45 mAh/g compared with uncovered nickel hydroxide during 0.2 C charge and discharge at the high-temperature performance of 65 DEG C; the utility ratio of active materials of the nickel hydroxide covered by the 2 percent Yb(OH)3 is still 85 percent; the high-temperature charging and discharging performance of the nickel hydroxide covered by the certain amount of Er(OH)3 is also obviously improved; the discharge capacities of 1 C and 3 C at 65 DEG C are respectively 295.7 mAh/g and 290.3 mAh/g; the utility ratios of the active materials respectively reach ...

Honeycomb seal welding type all-welded plate heat exchanger core structure

The invention relates to a honeycomb seal welding type all-welded plate heat exchanger core structure which is capable of improving the strength and sealing performance of a core of a plate heat exchanger and belongs to the technical field of plate heat exchangers. The structure comprises multiple parallel plate sheets connected in a brazed mode, wherein medium circulating channels are arranged between every two adjacent plate sheets, and honeycomb seal welding seam structures are arranged at each of the two ends of each plate sheet in a spaced mode. Due to the fact that straight seam welding structures between the plate sheets at the end of the core are changed into the honeycomb seal welding seam structures, the strength and sealing performance of a welding seam are improved remarkably, and then the sealing performance of the whole core is improved.

Condensate water and demineralized water mixed recovery two-stage deoxygenization apparatus

The invention relates to a condensate water and demineralized water mixed recovery two-stage deoxygenization apparatus. According to the invention, a first water inlet pipe and a third water inlet pipe positioned on an upper level and a second water inlet pipe and a fourth water inlet pipe positioned on a lower level are connected on the circumference of a pressure-bearing buffering tank. Synthetic ammonia cooling demineralized water and transformation cooling demineralized water are respectively connected into the first water inlet pipe and the third water inlet pipe. Calcining furnace condensate water and fluidized bed condensate water are respectively connected into the second water inlet pipe and the fourth water inlet pipe. A buffering tank exhaust pipe is connected to the middle part of the top wall of the pressure-bearing buffering tank. A check valve and a first control valve are sequentially arranged from bottom to top on the buffering tank exhaust pipe. A lower end of a water ...

Condensate water and demineralized water mixed recovery one-stage deoxygenization apparatus

The invention relates to a condensate water and demineralized water mixed recovery one-stage deoxygenization apparatus. The condensate water and demineralized water comprise calcining furnace condensate water, fluidized bed condensate water, synthetic ammonia cooling demineralized water and transformation cooling demineralized water. A first water inlet pipe and a third water inlet pipe positioned on an upper level and a second water inlet pipe and a fourth water inlet pipe positioned on a lower level are connected on the circumference of a pressure-bearing buffering tank. Synthetic ammonia cooling demineralized water and transformation cooling demineralized water are respectively connected into the first water inlet pipe and the third water inlet pipe. Calcining furnace condensate water and fluidized bed condensate water are respectively connected into the second water inlet pipe and the fourth water inlet pipe. A buffering tank exhaust pipe is connected to the middle part of the top wall ...

Automatic measuring method and device of stacking height of motor silicon steel sheet

The invention discloses an automatic measuring method and device of stacking height of a motor silicon steel sheet, and belongs to the technical field of an automatic measuring method. The automatic measuring method comprises the following steps: firstly, setting parameters in a main control computer, counting for a punch firstly by a counting device, and controlling a dynamic system to rotate a silicon steel sheet to the position of a vision measurement device when the requirement for stipulated amount of a main control computer is reached; taking a video image of a camera for image treatment according to a control signal by the main control computer, and acquiring the accurate stacking height of the silicon steel sheet according to the position of the edge on the silicon steel sheet in images, thereby obtaining height errors; removing or increasing a corresponding silicon steel sheet by a manipulator according to the height errors until the specification requirement is met. According ...

Anode material of nickel-hydrogen power battery and preparation method thereof

The invention relates to an anode material of a nickel-hydrogen power battery and a preparation method thereof. The composite nickel hydroxide is prepared by utilizing the synergistic effect of various elements, selecting elements such as Co, Zn, Ca, Mg, Cu and Mn to codeposit with a Ni element according to certain stoichiometric proportion, and modifying or doping the obtained product. The specific preparation method comprises: mixing more than one from the raw materials of 8-34g of NiSO4, 86-90g of ZnSO4, 8-18g of CoSO4 and 6-20g of MgSO4, 17-27g of CuSO4, 8-9g of MnSO4 or 9-37g of Ca(NO3)2; preparing the raw materials into a saturation mixture solution, then simultaneously adding the saturation mixture solution and two solutions of 7-8mol.L<-1> of NaOH and 11-13mol.L<-1> of NH3.H2O into a reactor, stirring with a stirring speed of 200-300r/min and an addition speed of 60-80L/h, controlling the reactive pH value of the mixture solution between 12 and 13, the temperature being 50+/-2DEG ...

Method for detecting taurine in compound amino acid injection

The invention relates to the technical field of analytical chemistry, and particularly discloses a method for detecting taurine in a compound amino acid injection, a high performance liquid chromatography and mass spectrometry combined method is adopted, the conditions of high performance liquid chromatography comprise that an EC-C18 chromatographic column is adopted, a mobile phase is composed of a mobile phase A and a mobile phase B, the mobile phase A is a formic acid solution, the mobile phase B is a sodium chloride solution, and the mobile phase C is a sodium chloride solution. A mobile phase B is an acetonitrile aqueous solution, elution is carried out according to a set program, and mass spectrum conditions comprise: an ion source: AJS-ESI; the scanning mode is MRM; the gas flow is 4-6 L/min; the gas temperature is 290 to 310 DEG C; the atomization gas pressure is 40 to 50 psi; the sheath temperature is 340-360 DEG C; and the sheath gas flow is 10-12L/min. Under the condition that ...

Paddle shell die forging and preparation method thereof

The invention discloses a paddle shell die forging and a preparation method thereof, and relates to a paddle shell die forging and a preparation method thereof. The invention aims to solve the problem that the grain size of the paddle shell die forging produced by the AL-Si-Fe-Cu-Mg-Ni alloy cannot be effectively controlled. According to the method disclosed by the invention, the segregation layer on the surface of the AL-Si-Fe-Cu-Mg-Ni alloy cast ingot is effectively removed and the structure grain size of the forge piece is effectively reduced by controlling the process stages of machining, upsetting, drawing and compression molding. Pollution caused by acid and alkali washing can be reduced by adopting a shot blasting technology, and the structure of the forge piece is more uniform and compact. The tensile property of the propeller shell forge piece produced through the method is higher than the standard 40 Mpa or above, the yield property is higher than the standard 30 Mpa or above, ...

Preparation method of microscopic structure sample for measuring slag of aluminum alloy cast ingot

The invention discloses a preparation method of a microscopic structure sample for measuring slag of an aluminum alloy ingot. The method comprises the steps that firstly, an aluminum alloy cast ingot is sawn, the sawn section serves as an inspection surface and is milled, then sample mounting is conducted, and the size of a sample after sample mounting is phi 30 mm; and 2, sequentially carrying out rough grinding, fine grinding, rough polishing treatment, fine polishing treatment and fine polishing treatment, then washing with water, wiping with an absolute ethyl alcohol cotton ball, and blow-drying to finish the process. According to the method, the microscopic structure sample which meets the inspection requirement and is used for measuring the slag of the aluminum alloy cast ingot is prepared, the microscopic structure of the sample is observed, the slag content of the cast ingot is inspected, and therefore the casting quality of the cast ingot can be accurately evaluated. According ...

Method for constructing rat aortic arch constriction cardiac hypertrophy model

The invention belongs to the technical field of animal model construction, and discloses a construction method of a rat aortic arch constriction myocardial hypertrophy model, which comprises the following steps: transversely cutting a third rib 0.5 cm away from the sternum on the left side of a rat, and carrying out intercostal cutting thoracotomy on the second rib and the third rib to carry out subsequent surgical operation to prepare the rat myocardial hypertrophy model; 4 weeks after the operation, heart color ultrasound is used for measuring the left ventricular septum thickness, the left ventricular end diastole posterior wall thickness and the ejection fraction of the rat, and histological observation is carried out. According to the method, the third rib, about 0.5 cm away from the sternum, of the left side of the rat is transversely cut, then the intercostal gap between the second rib and the third rib is cut to the left side of the rat, the rat cardiac hypertrophy model prepared ...

Thermoelectric refrigeration liquid cooling device

The invention relates to a thermoelectric refrigeration liquid cooling device, and belongs to a refrigeration plant. Thermoelectric refrigeration films and radiators are symmetrically arranged on two sides of a micro channel refrigeration exchanger; the micro channel refrigeration exchanger and a micro channel cooling plate are respectively arranged on the top and bottom of a hollow substrate; the micro channel refrigeration exchanger is provided with a liquid inlet and a liquid outlet which are connected by a hose; a water pump is arranged on the hose; two side walls of the micro channel refrigeration exchanger are symmetrically provided with micro channels; a plurality of micro channels are formed parallelly on the micro channel cooling plate; upper and lower runner division plates are arranged among the micro channels; and the micro channels on the micro channel refrigeration exchanger are communicated with those on the micro channel cooling plate. The thermoelectric refrigeration liquid ...

Blast furnace sintering-free cold-bonded pellet and binder

The invention relates to the technical field of steel smelting, and provides a blast furnace sintering-free cold-bonded pellet and a binder, the binder comprises, by weight, 1-1.5 parts of cassava gelatinized starch, 1-2 parts of magnesium chloride, 1-2 parts of phenolic resin, and 0.02-0.9 part of a stabilizer; the stabilizer comprises one or more of graphite, hexagonal boron nitride and zirconium oxide. By means of the technical scheme, the problem that in the prior art, a binder cannot meet the high requirements of blast furnace ironmaking pellets for the strength and the pulverization expansion coefficient is solved.

Freight claim settlement processing method, device and system and storage medium

The invention relates to the technical field of logistics management, and discloses a freight claim settlement processing method, device and system and a storage medium, which are used for reducing the labor cost, ensuring the authenticity of claim settlement proof data, avoiding unreasonable loss assessment caused by subjective personnel through automatic loss assessment of a cargo loss assessment model, shortening the freight claim settlement processing time and improving the freight claim settlement processing efficiency. And the freight claim settlement processing efficiency is improved. The freight claim settlement processing method comprises the steps of obtaining a claim settlement request, and calling insurance policy information and freight node information according to the claim settlement request; when the claim settlement type is cargo loss, verifying the claim settlement request according to the insurance policy information and the freight node information to obtain a verification ...

High-conductivity aluminum-silicon-magnesium alloy for new energy automobile charging pile and manufacturing method of high-conductivity aluminum-silicon-magnesium alloy

The invention relates to a high-conductivity aluminum-silicon-magnesium alloy for a new energy automobile charging pile and a manufacturing method of the high-conductivity aluminum-silicon-magnesium alloy, in particular to the high-conductivity aluminum-silicon-magnesium alloy for the new energy automobile charging pile and the manufacturing method of the high-conductivity aluminum-silicon-magnesium alloy. The invention aims to further reduce the production cost of domestic new energy automobile charging piles, gradually replace copper alloy strips and widen the application field of aluminum products. The alloy comprises the following elements in percentage by mass: 0.3-0.7% of Si, 0.35-0.8% of Mg, less than or equal to 0.5% of Fe, less than or equal to 0.10% of Cu, less than or equal to 0.03% of Mn, less than or equal to 0.03% of Cr, less than or equal to 0.10% of Zn, less than or equal to 0.06% of B, less than or equal to 0.05% of Ti, less than or equal to 0.05% of Be, less than or equal ...

Buffer tank for mixed recovery of condensate water and desalted water as well as deoxidized exhaust steam condensing device

The invention relates to a buffer tank for mixed recovery of condensate water and desalted water as well as a deoxidized exhaust steam condensing device. A first water inlet pipe, a second water inlet pipe, a third water inlet pipe and a fourth water inlet pipe are connected onto a pressure-bearing buffer tank, wherein the first water inlet pipe and the third water inlet pipe are located on the upper layer, and the second water inlet pipe and the fourth water inlet pipe are located on the lower layer; synthesis ammonia cooled desalted water and conversion cooled desalted water are introduced into the first water inlet pipe and the third water inlet pipe respectively, and calcining furnace condensate water and fluidized bed condensate water are introduced into the second water inlet pipe and the fourth water inlet pipe respectively; buffer tank exhaust steam enters a first heat exchanger and is cooled into buffer tank exhaust steam condensate water by circulating cooling water, the buffer ...

Ultrasonic gas meter node fault diagnosis method based on knowledge graph

An ultrasonic gas meter node fault diagnosis method based on a knowledge graph comprises the steps that (1) ultrasonic gas meter information is collected from multiple information sources, an ultrasonic gas meter and metering parameter triple is extracted, and a data support layer is constructed; (2) performing knowledge fusion on the triple in the data support layer obtained in the step (1) by using a Falcon-AO system to obtain a redundancy-removed ultrasonic gas meter atlas; (3) performing knowledge reasoning on the atlas of the ultrasonic gas meter obtained in the step (2) by using a path ranking algorithm (PRA), and complementing entity nodes lacking in the atlas obtained in the step (2); and (4) utilizing the gas meter knowledge graph constructed in the step (3), extracting gas meter node characteristics by using a depth walk algorithm, and performing ultrasonic gas meter node fault diagnosis. According to the method, the knowledge graph of the ultrasonic gas meter node metering parameters ...

Fluorimetric determination method of cefpiramide sodium for injection

The invention discloses a fluorimetric measuring method of cefpiramide sodium for injection. The method comprises the following steps: keeping the concentration of a non-ionic surfactant TritonX-100 at 1.5*10<-3>mol/L, adding a test sample of cefpiramide sodium with the concentration range from 8.0*10<-6> to 8.0*10<-5>mol/L under a neutral condition, mixing uniformly, and measuring the fluorescence intensity after placing for 5 hours; and setting excitation wavelength at 280nm, the emission wavelength range as 290-450nm, the scanning velocity at 15-3000nm/min, the widths of excitation slit and transmitting slit at 2.5-20.0nm, and measuring the fluorescence intensity. In the invention, by utilizing the cefpiramide sodium, the TfitonX-100 fluorescent light can be quenched effectively, the detection of the test sample of the cefpiramide sodium for injection can be realized, the fluorimetric measuring method of cefpiramide sodium for injection is simple and convenient to operate, and is quick ...

Anode material of nickel-hydrogen power battery and preparation method thereof

The invention relates to an anode material of a nickel-hydrogen power battery and a preparation method thereof. Novel composite nickel hydroxide is prepared by utilizing the synergistic effect of various elements, selecting elements such as Co, Zn, Ca, Mg, Cu and Mn to codeposit with a Ni element according to certain stoichiometric proportion, and modifying or doping the obtained product. The anode material embodies excellent electrochemical property at the temperature of 25 DEG C and at the temperature of 65 DEG C. When the temperature is 25 DEG C, the maximum discharge capacity reaches 300.1mAh/g when the charge-discharge rate is 1C, and the discharge capacity is 241.2mAh/g when the charge-discharge rate is 3C; and when the temperature is 65 DEG C, the charge efficiency reaches more than 85 percent when the charge-discharge rate is 1C, and the charge efficiencies are 84 percent and 82 percent respectively when the charge-discharge rate is 2C and 3C. After 30 times of cycles, the discharge ...

Fabric defect detection method based on B-spline wavelets and deep neural network

A fabric defect detection method based on B-spline wavelets and deep neural network includes deep neural network model training and defect image detecting. The deep neural network model training is characterized in that by learning existing sample libraries, the defect-free reconstructed images of samples under the premise that defect images are input. The defect image detecting showed in the picture is characterized in that to-be-detected fabric images are subjected to multiple times of wavelet transformation to obtain compressed images with most of texture information reserved, and the compressed images are saved; the compressed images are input into a trained deep neural network input end, calculation is performed, and the defect-free reconstructed images are obtained at an output end; margin calculation is performed on the reconstructed images and the saved compressed images to obtain the images which only contain defects; the features of the defect images are extracted to analyze whether ...

Extra-wide gap pressureproof plate-type heat exchanger

The invention relates to an extra-wide gap pressureproof plate-type heat exchanger comprising one or more heat exchanging units (2). When the extra-wide gap pressureproof plate-type heat exchanger comprises a plurality of heat exchanging units (2), included angles less than 180 degrees are formed by shaft lines positioned among the heat exchanging units (2) in a same plane, and each heat exchanging unit (2) comprises a corrugated heat exchanging plate. When the extra-wide gap pressureproof plate-type heat exchanger comprises the plurality of heat exchanging units (2), the heat exchanging units (2) are in in-line arrangement, i.e. the heat exchanging units (2) are arranged in parallel. The extra-wide gap pressureproof plate-type heat exchanger can obtain better turbulent flow effect at low flow rate and meet the requirements of the heat exchange and the cooling of materials in chemical plants and food and beverage industries.

Rapid adjuster for horizontal support of plate heat exchanger frame plate

The invention relates to a rapid adjuster for the horizontal support of a plate heat exchanger frame plate. The rapid adjuster comprises a plurality of height-adjustable supporting parts symmetrically arranged on the periphery of a plate heat exchanger frame plate. Each supporting part comprises a vertical guide rod used for supporting the plate heat exchanger frame plate and a guide sleeve used in cooperation with the guide rod, wherein a hydraulic lifting mechanism is arranged between each guide sleeve and a corresponding supporting seat at the bottom. According to the rapid adjuster for the horizontal support of the plate heat exchanger frame plate, when the large plate heat exchanger frame plate is drilled, the height-adjustable supporting parts are directly arranged on the periphery of the bottom of the frame plate in a supporting mode, and when the machining position needs to be changed by adjusting the supporting height in the machining process, the supporting height of the frame ...

Post-treatment method of homocystine reaction solution

The invention provides a post-treatment method of a homocystine reaction solution, and relates to the technical field of homocystine preparation. The post-treatment method of the homocystine reactionsolution comprises the following steps: adsorbing the homocystine reaction solution in acid ion exchange resin, performing primary elution on the adsorption ion exchange resin through water, obtainingeluent and deacidified ion exchange resin, and wherein the eluent comprises recycled sulfuric acid and hydrobromic acid; and carrying out secondary elution on the deacidified ion exchange resin by using an acid eluent or an alkali eluent to obtain an acid eluent or an alkali eluent, the acid eluent or the alkali eluent containing homocystine. According to the post-treatment method, sulfuric acidand hydrobromic acid are weak in adsorption capacity in acidic ion resin, and are easily eluted with water to be separated from the reaction solution so that a large amount of waste salt generated byneutralizing ...

Method for preparing aluminum alloy large-specification thin-wall pipe through one-time extrusion forming

The invention discloses a method for preparing an aluminum alloy large-specification thin-wall pipe through one-time extrusion forming, and relates to a preparation method of a large-specification thin-wall pipe. The problems that an existing aluminum alloy large-specification thin-wall pipe is low in production efficiency and poor in surface quality are solved. The method comprises the following steps: selecting an aluminum alloy cast ingot, putting the aluminum alloy cast ingot into an extrusion die, and pressing an extrusion needle; the aluminum alloy is put into a cast ingot heating furnace, and a cast ingot is heated to the extrusion temperature upper limit of the selected alloy; after the cast ingot reaches the temperature, the cast ingot is put into an extrusion container to be extruded, and the aluminum alloy large-specification thin-wall pipe is obtained; the aluminum alloy large-specification thin-wall pipe is produced in a one-time extrusion forming mode, the size of an extrusion ...

Plate sheet structure convenient to locate and forming mould thereof

The invention relates to a plate sheet structure convenient to locate in the field of plate heat exchangers. The plate sheet structure comprises a metal plate sheet, corrugated grooves are formed in the surface of the plate sheet, locating structures facilitating locating and mounting of the plate sheet are symmetrically arranged in the centers of the two sides of the plate sheet respectively, and the locating structures comprise hanging openings which are inwards concaved and symmetrically formed along the centers of the two sides of the plate sheet. The invention further relates to a forming mould of the plate sheet structure. The forming mould comprises an upper mould body and a lower mould body used for pressing the plate sheet, and corrugated groove forming structures are arranged at the corresponding positions of the upper mould body and the lower mould body. Hanging opening forming structures are symmetrically arranged in the centers of the two sides of the upper mould body and the ...

Deoxidized exhaust steam condensing device for mixed recovery of condensate water and desalted water

The invention relates to a deoxidized exhaust steam condensing device for mixed recovery of condensate water and desalted water. A first water inlet pipe, a second water inlet pipe, a third water inlet pipe and a fourth water inlet pipe are connected onto the circumference of a pressure-bearing buffer tank, wherein the first water inlet pipe and the third water inlet pipe are located on the upper layer, and the second water inlet pipe and the fourth water inlet pipe are located on the lower layer; synthesis ammonia cooled desalted water and conversion cooled desalted water are introduced into the first water inlet pipe and the third water inlet pipe respectively, and calcining furnace condensate water and fluidized bed condensate water are introduced into the second water inlet pipe and the fourth water inlet pipe respectively; the top of the pressure-bearing buffer tank is connected with a buffer tank steam discharge pipe; a buffer tank water outlet pipe is connected with a first water ...