INORGANIC SALT-CONTAINING LAYERED DISSOLVING MICRO-NEEDLE CONTAINING INORGANIC SALT

An inorganic salt-containing layered dissolving micro-needle containing inorganic salt, and a preparation method therefor. The inorganic salt-containing layered dissolving micro-needle comprises a substrate, a needle body on the substrate, and a needle tip on the needle body. The needle tip is made by mixing an inorganic salt solution, a stabilizer, a film-forming water-soluble polymer material, and a bioactive component; the needle body and the substrate are made of the film-forming water-soluble polymer material, or the film-forming water-soluble polymer material and the stabilizer. The inorganic salt-containing layered dissolving micro-needle containing inorganic salt improves the formability of a needle tip of an inorganic salt-containing micro-needle and improves stability of a bioactive component.

泡罩包装盒

Multi-account book consensus method for oracle machine

The invention relates to the technical field of block chains, and discloses a multi-account book consensus method for an oracle machine, and the method comprises the steps: retrieving and obtaining target data and the type information of the target data from a preset database; obtaining verification data from a corresponding preset block chain according to the type information; verifying whether the target data is correct or not according to a preset verification rule and the verification data; if the target data is correct, the target data is confidence, otherwise, a comprehensive check on the preset database is started, the preset database is used for recording daily transaction data, and the preset block chain is used for checking the retrieved target data, so that the retrieval efficiency can be ensured, and the authenticity and tampering prevention of a retrieval result can be ensured.

OIL RETURN CONTROL METHOD AND AIR CONDITIONING SYSTEM

Disclosed in the present application are an oil return control method and an air conditioning system. The oil return control method of the present application is applied in an air conditioning system. The oil return control method comprises: obtaining the superheat of return air of an outdoor unit and the superheat of an outlet of an indoor unit; and determining an oil return time interval for the air conditioning system according to the difference between the superheat of the return air of the outdoor unit and the superheat of the outlet of the indoor unit. In the oil return control method of the present application, an oil return time interval for an air conditioning system is determined according to the difference between the superheat of return air of an outdoor unit and the superheat of an outlet of an indoor unit, and thus, the air conditioning system can start an oil return mode according to an appropriate oil return time interval, thereby reducing the noise in the oil return process ...

PLUM-BLOSSOM NEEDLE CUPPING DEVICE HAVING ACCURATE BLOODLETTING FUNCTION

A plum-blossom needle cupping device comprises: a cup (1) and a plum-blossom needle bloodletting pen (2) arranged at the top center of the cup (1); and a negative-pressure bloodletting gun (3) applying a vacuum to the cup (1) via the plum-blossom needle bloodletting pen (2). The cup (1) is connected, in a slidable and sealed manner, to the plum-blossom needle bloodletting pen (2). The negative-pressure bloodletting gun (3) drives the plum-blossom needle bloodletting pen (2) to move vertically. The cupping device is utilized to realize functions of a controlled needling depth, formation of a negative pressure immediately after cupping and needling, and automatic blood stasis removal.

DEFROSTING CONTROL METHOD AND DEFROSTING CONTROL DEVICE FOR AIR CONDITIONER

A defrosting control method for an air conditioner, comprising the following steps: when the air conditioner enters a defrosting mode, acquiring outdoor environment temperature and outdoor environment humidity; judging whether the outdoor environment temperature and the outdoor environment humidity meet a preset condition or not; and if it is judged that the outdoor environment temperature and the outdoor environment humidity meet the preset condition, controlling, according to tube temperature of an outdoor heat exchanger and defrosting time, an outdoor draught fan to reverse, thus defrosting a containing mesh cover of the outdoor heat exchanger. The method can effectively remove residual frost on a retaining mesh cover of an outdoor heat exchanger. Also disclosed is a defrosting control device for an air conditioner.

CONTROL METHOD AND DEVICE FOR LOW-TEMPERATURE COOLING AIR VALVE

A control method and device for a low-temperature cooling air valve. The method comprises: obtaining an actual system pressure, an ambient temperature, and a system energy requirement; and determining an opening degree of a low-temperature cooling air valve according to the actual system pressure, the ambient temperature, and the system energy requirement. The control method is employed to perform combined control on the low-temperature cooling air valve according to the system high pressure, the ambient temperature and the system energy requirement, and can refine the range of opening degrees of the low-temperature cooling air valve and determine an opening degree thereof, thereby facilitating cooling operation of a multi-split air conditioning system in an ultra-low temperature environment, while also increasing the reliability of the cooling operation at low temperature and expanding the operation range.

Cyanoacetic acid ester and malonate's continuous cyaniding separator

... 一种氰乙酸酯和丙二酸酯的连续氰化分离装置，包括接收罐和第一降膜蒸发器，接收罐底部的出口与第一降膜蒸发器管腔的进口连通，关键是：所述的装置还包括第一静态混合器、第二静态混合器、第二降膜蒸发器、第一汽液分离器、第二汽液分离器、第一固液分离器、第二固液分离器，第一汽液分离器的汽体出口与第二降膜蒸发器壳腔的进口连通且它们之间设置有第一MVR热泵，第二汽液分离器的汽体出口处设置有第二MVR热泵。通过连续的氰化和蒸发浓缩以及对蒸汽的MVR热泵压缩，实现反应热和物料潜热的充分利用，达到了节能降耗、节省人力资源、降低生产成本的目的。 ...

Cross-chain transaction template management system based on DNS analysis

The invention belongs to the field of block chains, relates to a data analysis technology, is used for solving the problem that an existing cross-chain transaction template management system cannot meet cross-chain requirements of all different businesses, and particularly relates to a cross-chain transaction template management system based on DNS (Domain Name Server) analysis, which comprises a transaction management platform, the transaction management platform is in communication connection with a business management module, an application management module, a relay management module, an optimization analysis module and a storage module; the business management module is used for creating a transaction template and sending the transaction template to the storage module for storage, the application management module is used for sending a transaction calling request, and sending modes of the transaction calling request comprise a single chain sending mode and a transaction sending mode ...

VARIABLE REFRIGERANT FLOW SYSTEM

A variable refrigerant flow system, comprising an outdoor unit apparatus (10), a split-flow apparatus (30) and a plurality of indoor unit apparatuses (21, 22, 23, 24), wherein each of the indoor unit apparatuses (21, 22, 23, 24) comprises an indoor heat exchanger (211, 221, 231, 241) and a throttling element (212, 222, 232, 242), the split-flow apparatus (30) comprises a plurality of first control valves (302A, 302B, 302C, 302D) and a plurality of second control valves (303A, 303B, 303C, 303D) corresponding to each of the indoor unit apparatuses (21, 22, 23, 24), and when any one of the indoor unit apparatuses (21, 22, 23, 24) receives a mode switching instruction, the mode switching instruction is sent to the split-flow apparatus (30); and according to the mode switching instruction, the split-flow apparatus (30) determines whether the first control valves (302A, 302B, 302C, 302D) and the second control valves (303A, 303B, 303C, 303D) corresponding to the indoor unit apparatuses (21, 22 ...

MULTI-SPLIT SYSTEM, AND ANTI-COLD AIR CONTROL METHOD AND APPARATUS FOR INDOOR UNIT THEREOF

A multi-split system and an anti-cold air control method and apparatus for an indoor unit thereof. The multi-split system comprises an outdoor unit and a plurality of indoor units. The control method comprises the following steps: obtaining a saturation temperature corresponding to a high pressure of an outdoor unit (S1); obtaining inlet temperatures and return air temperatures of heat exchangers of heating indoor units in a plurality of indoor units (S2); and controlling an operating state of the heating indoor units according to the saturation temperature, the inlet temperatures and the return air temperatures (S3).

TWO-PIPE ENHANCED VAPOR INJECTION OUTDOOR MACHINE AND MULTI-SPLIT SYSTEM

A two-pipe enhanced vapor injection outdoor machine and a multi-split system. The two-pipe enhanced vapor injection outdoor machine comprises: an outdoor heat exchanger (10) and a second interface (14); an enhanced vapor injection compressor (16), comprising an air outlet (162), an air return port (164), and an injection port (166); a changing-over component (18), comprising a first end to a fourth end; a supercooler (20) comprising a main heat-exchange flow path and an auxiliary heat-exchange flow path which are communicated with each other, the main heat-exchange flow path being connected to the second interface (14), and the auxiliary heat-exchange flow path being connected to the injection port (166); and a throttle component (22), one end of the throttle component (22) being connected to an outlet of the main heat-exchange flow path, and the other end being connected to an inlet of the outdoor heat exchanger (10).

HORIZONTAL GAS-LIQUID SEPARATOR FOR AIR CONDITIONER, AND AIR CONDITIONER

A horizontal gas-liquid separator (100) for an air conditioner comprises a housing (10) and a refrigerant inlet pipe (120). The housing (10) is provided with a cavity (110), a gas outlet (111) is formed in the top of the cavity (110), and a liquid outlet (112) is formed in the bottom of the cavity (110). A smallest distance between the gas outlet (111) and a left sidewall of the cavity (110) is L1, and a smallest distance between the liquid outlet (112) and the left sidewall of the cavity (110) is L2. The refrigerant inlet pipe (120) is located on a left side wall of the housing (10), and one end of the refrigerant inlet pipe (120) extends into the cavity (110). The distance between an end face of the refrigerant inlet pipe (120) and the left sidewall of the cavity (110) is L3, L3≥L1 and L3≥L2.

IMPLANTABLE SUSTAINED-RELEASE MICRONEEDLE PATCH AND PREPARATION METHOD THEREFOR

An implantable sustained-release microneedle patch and a preparation method therefor. The implantable sustained-release microneedle comprises a needle tip, a needle body, and a base. The needle tip comprises a needle tip center layer and a needle tip outer layer. The needle tip center layer is formed of a matrix comprising a biodegradable water-insoluble polymer material. The needle tip outer layer, the needle body and the base are formed of a matrix comprising a water-soluble polymer material. The microneedle patch comprises the microneedle, and absorbs moisture of skin when the microneedle acts on skin, so that the base and the needle body are quickly separated from the needle tip within 0.5-2h. After the base is removed, the needle tip will be left in skin, and the user does not need the patch sticking for a long time to ensure long-term release of a drug in the body.

MULTI-SPLIT SYSTEM AND CONTROL METHOD THEREOF

A multi-split system and a control method thereof are provided. The control method comprises the steps of: obtaining a discharge superheating degree from a compressor (3) and determining whether the discharge superheating degree is less than a first predetermined superheating degree; if the discharge superheating degree is less than the first predetermined superheating degree, further obtaining a pre-valve supercooling degree of a cooling throttle member (21), and determining whether the pre-valve supercooling degree is less than a predetermined supercooling degree; and if the pre-valve supercooling degree is less than the predetermined supercooling degree, controlling the degree of opening of the cooling throttle member (21) to remain unchanged, adjusting a vent target superheating degree of a plurality of indoor units (300) to a first target superheating degree, and controlling an indoor throttle member (21) of the plurality of the indoor units (300) according to the first target superheating ...

HEAT EXCHANGER AND MULTI-SPLIT SYSTEM HAVING SAME

Provided are a heat exchanger (100) and a multi-split system having the same. The heat exchanger (100) comprises a branch pipe (1) and a collecting pipe (2). The branch pipe (1) comprises a body (11), an inlet (12), and multiple flow separation holes. The inlet (12) is formed in the bottom of the body (11). The multiple flow separation holes are distributed in the side wall of the body (11) in the length direction of the body (11). In the direction from the bottom to the top, the body (11) comprises multiple segments of pipe bodies. In every two adjacent segments of pipe bodies, the flow area of a downstream pipe body is smaller than the flow area of an upstream pipe body, the height of each segment of pipe body is not greater than 0.5 meters, and the number N of the pipe bodies is greater than or equal to 2 and less than or equal to 3. The collecting pipe (2) and the branch pipe (1) are communicated by means of multiple heat exchange pipes, the multiple heat exchange pipes are distributed ...

OUTDOOR UNIT OF MULTI-SPLIT AIR CONDITIONER AND MULTI-SPLIT AIR CONDITIONER HAVING SAME

Provided are an outdoor unit (100) of a multi-split air conditioner, and a multi-split air conditioner having same. The outdoor unit (100) of a multi-split air conditioner comprises: a compressor (10); a reversing assembly (20); an outdoor heat exchanger (30), the outdoor heat exchanger (30) comprising a collecting pipe (31), a heat exchanging portion (32), a plurality of capillaries (33) for flow distribution and a flow divider (34); an electronic expansion valve (40), the electronic expansion valve (40) being connected to the flow divider (34); refrigerant flow passages (50) and a regulating valve assembly (60), the refrigerant flow passages (50) being connected to the electronic expansion valve (40), and the regulating valve assembly (60) being connected to the refrigerant flow passages (50) in series; and a reversing valve assembly (70), the regulating valve assembly (70) allowing refrigerant to flow out of the outdoor unit (100) of a multi-split air conditioner from a second stop valve ...

METHOD AND DEVICE FOR CONTROLLING LOW-TEMPERATURE REFRIGERATION AIR VALVE

Provided in the present invention are a method and a device for controlling a low-temperature refrigeration air valve, wherein the method comprises: acquiring a current environment temperature; according to the current environment temperature, determining an initial target pressure of the current system and an initial opening degree of an air valve; acquiring an actual pressure of the current system and the current system target pressure; and adjusting the opening degree of the air valve according to a difference value between the current system target pressure and the current system actual pressure, wherein the air valve is arranged on a low temperature cover. Therefore, according to the low-temperature refrigeration air valve control method provided in the embodiment of the present invention, the opening degree of the air valve is adjusted according to the difference value between the current system target pressure and the actual pressure of the current system, so as to meet the refrigeration ...

VALVE BODY FAILURE DETECTION METHOD OF AIR CONDITIONING SYSTEM AND AIR CONDITIONING SYSTEM

A valve body failure detection method of an air conditioning system (100) and the air conditioning system (100). The air conditioning system (100) comprises at least two outdoor units (10), and the outdoor units (10) comprise heat exchangers (12), and throttling valves (14) connected to the heat exchangers (12). The detection method comprises: when the superheat degree of a compressor of the operated outdoor unit (10) is less than a first threshold, obtaining a coiler temperature of the heat exchanger (12) of the unoperated outdoor unit (10); determining whether a difference absolute value between the coiler temperature and an outdoor environment temperature is greater than a second threshold; and if the difference absolute value between the coiler temperature and the outdoor environment temperature is greater than the second threshold, determining the failure of the throttling valve (14) of the unoperated outdoor unit (10).

AIR CONDITIONER, AND CONTROL METHOD AND DEVICE FOR HEATING SYSTEM THEREOF

An air conditioner, and a control method and device for a heating system thereof, wherein the method comprises: obtaining ambient temperature and external heat exchanger evaporation temperature; obtaining external heat exchanger evaporation pressure, and obtaining, according to the external heat exchanger evaporation pressure, corresponding saturation temperature; and controlling a base plate heating device (20) according to the ambient temperature, the external heat exchanger evaporation temperature, or the saturation temperature. Hence, the base plate heating device (20) is controlled according to the ambient temperature, the saturation temperature corresponding to the external heat exchanger evaporation pressure, or the external heat exchanger evaporation temperature, to avoid freezing of the base plate of an air conditioner, and ensure normal drainage of the base plate during defrosting, thereby improving the stability and reliability of the air conditioner.

TWO-PIPE SYSTEM GAS-INJECTION ENTHALPY-INCREASING OUTDOOR UNIT AND MULTI-SPLIT SYSTEM

A two-pipe system gas-injection enthalpy-increasing outdoor unit and multi-split system, comprising: an outdoor heat exchanger (10); a compressor (16), comprising an exhaust port (162), a return port (164), and an injection port (166); a first end of a reversing assembly (18) being connected to the exhaust port (162), and a second end of the reversing assembly being connected to the return port (164); a flasher (20), comprising a refrigerant inlet (202), an air outlet (204), and a liquid outlet (206), the air outlet (204) being connected to the injection port (166), and the liquid outlet (206) being connected to a first port (12) and the inlet of the outdoor heat exchanger (10), one end of a throttle assembly (22) being connected to the refrigerant inlet (202), and the other end being connected to a second port (14); and a first conduit (24).

OUTDOOR UNIT FOR HEAT RECOVERY MULTI-SPLIT AIR CONDITIONING SYSTEM AND HEAT RECOVERY MULTI-SPLIT AIR CONDITIONING SYSTEM

An outdoor unit (100) for a heat recovery multi-split air conditioning system. The outdoor unit (100) comprises a compressor (2), a reversing assembly (3), an outdoor heat exchanger (4), multiple one-way valves, a throttling element (6), and a gas-liquid separator (9). The compressor (2) is provided with an exhaust opening (a) and an air return opening (b). The reversing assembly (3) comprises a first valve port (c) to a fourth valve port (f). A first end of the outdoor heat exchanger (4) is connected to the fourth valve port (f), and a second end of the outdoor heat exchanger (4) is connected to a second port (12). Each one-way valve comprises a communication end and a stop end. Each one-way valve is communicated in one direction from the communication end to the stop end. Also provided is a heat recovery multi-split air conditioning system provided with the outdoor unit.

On-chain and off-chain credible collaborative confidential computing subpackage processing technology based on TEE (Trusted Execution Element)

The invention relates to the technical field of block chains, and particularly discloses an on-chain and off-chain credible collaborative confidential computing subpackage processing technology based on TEE, which comprises the following steps: S1, setting an on-chain built-in TEE at a block chain node in advance, establishing an off-chain external TEE associated with the on-chain built-in TEE, and performing connection based on a credible verification channel; s2, the calculation is analyzed, a calculation mode is determined according to an analysis result, and the calculation mode comprises on-chain built-in TEE confidential calculation and off-chain external TEE confidential calculation; the secret calculation process of the under-chain external TEE comprises the following steps: acquiring an environment parameter of the under-chain external TEE and sending the environment parameter to the on-chain built-in TEE for verification; after verification is completed, confidential calculation ...

QUICK IMPLANTABLE SLOW-RELEASE MICRONEEDLE PATCH AND PREPARATION METHOD THEREFOR

A quick implantable slow-release microneedle, comprising a needle tip, a middle layer, a needle body, and a base. The needle tip is prepared from a biodegradable and water-insoluble macromolecular material matrix; the middle layer is prepared from a hydrophilic material matrix; and the needle body and the base are prepared from a macromolecular material matrix having biocompatibility. A preparation method for the microneedle. A quick implantable slow-release microneedle patch, comprising a microneedle array and a backing constituted by the microneedles.

TWO-CONTROL JET ENTHALPY-INCREASING OUTDOOR UNIT AND MULTI-SPLIT AIR CONDITIONING SYSTEM

A two-control jet enthalpy-increasing outdoor unit and a multi-split air conditioning system, the two-control jet enthalpy-increasing outdoor unit comprising: an outdoor heat exchanger (10), a jet enthalpy-increasing compressor (16), a reversing assembly (18), a supercooling device (20), a throttle assembly (22), and a first pipeline (24). A first end and a second end of the reversing assembly (18) are respectively connected to a gas outlet (162) and a gas return port (164), a main heat exchange flow path respectively being connected to a first interface (12) and a second interface (14), a secondary heat exchange flow path being connected to a jet opening (166), the two ends of the throttle assembly (22) respectively being connected to an outlet of the main heat exchange flow path and an inlet of the outdoor heat exchanger (10), one end of the first pipeline (24) being connected to an outlet of the outdoor heat exchanger (10), and the other end being positioned between the throttle assembly ...

Surface treatment device and treatment method for external anticorrosion process of pipeline

The invention discloses a pipeline external anticorrosion process surface treatment device and treatment method.The pipeline external anticorrosion process surface treatment device comprises a fixing device, a rust removal device and a spraying device, and the rust removal device and the spraying device are arranged on the two sides of the fixing device correspondingly; the two sets of fixing clamps are oppositely and slidably arranged at the two ends of the platform in the length direction, at least two lifting tables are arranged between the two sets of fixing clamps, and the tops of the lifting tables are arc-shaped; the rust removal device and the spraying device are slidably arranged on the platform, and the sliding directions of the rust removal device and the spraying device are parallel to the sliding direction of the fixing clamp; the rust removal device comprises a rust removal brush; the rust removal brush can move towards the direction of the pipeline and is in contact with ...

Novel dust removal technology for fully-mechanized excavation face of coal mine

The invention relates to a novel dust removal technology for a coal mine fully-mechanized excavation face, in particular to a technology for removing dust by using a high-pressure closed water mist dust remover to achieve the purpose of efficient dust removal for the coal mine fully-mechanized excavation face. The high-pressure closed water mist dust remover comprises a filtering system, a high-pressure water pump, a control system and a pipeline.

Layered and partitioned end-side cloud hybrid networking method for large-scale block chain nodes

The invention relates to the technical field of block chains, and discloses a hierarchical and partitioned end-side cloud hybrid networking method for large-scale block chain nodes, and the method comprises the steps: splitting a block chain into multi-layer block chains, building off-chain data into data of a private chain at the edge-most end, obtaining data Hash of a lower-layer block chain at the upper layer, and carrying out the end-side cloud hybrid networking on the lower-layer block chain; the data of the block chain can be verified, meanwhile, the block chain data of the level where the block chain is located is reserved, by parity of reasoning, the number Hash of the next layer, transaction records and the data of the block chain are reserved on the upper layer, the hash value of the upper layer can be read for verification when needed, and in addition, when important data are encountered, the data of the block chain can be verified by identifying and appointing the level crossing ...

Preparation method of 3-ketone-4-(methoxyimino) isochroman

The invention relates to the technical field of chemical production, and particularly discloses a preparation method of 3-ketone-4-(methoxyimino) isochroman. According to the method, the crystallization mother liquor of (E)-2-[(2-bromomethyl) phenyl)]-methoxyimino methyl acetate is used as a raw material, and resource utilization of the raw material and a reaction product in the crystallization mother liquor is realized through incomplete selective alkaline hydrolysis, acidification, cyclization, devitrification and the like; the prepared (E)-2-(2-methylphenyl)-2-methoxyimino acetic acid and 3-ketone-4-(methoxyimino) isochroman products can be used as raw materials for synthesizing trifloxystrobin, kresoxim-methyl, dimoxystrobin, orysastrobin and the like, consumption of the raw materials is reduced, bromine in mother liquor is recycled, pollution to the environment is avoided, the whole process is easy to operate and high in controllability, and the method is suitable for industrial production ...

Post-treatment process of m-trifluoromethyl acetophenone oxime

The invention relates to the technical field of chemical production, and particularly discloses a post-treatment process of m-trifluoromethyl acetophenone oxime. The method specifically comprises the following steps: adding a copper complexing agent into a coupling reaction solution, stirring for reaction, standing, separating liquid, and carrying out alkali washing on an obtained oil phase to be neutral, so as to obtain a m-trifluoromethyl acetophenone oxime reaction solution; and concentrating the m-trifluoromethyl acetophenone oxime reaction solution, cooling, crystallizing, carrying out solid-liquid separation, washing and drying to obtain the m-trifluoromethyl acetophenone oxime product. According to the post-treatment process of the m-trifluoromethyl acetophenone oxime, provided by the invention, the step of preparing the m-trifluoromethyl acetophenone oxime by firstly carrying out hydrolysis and then carrying out oximation reaction with hydroxylamine after a coupling reaction in ...