4345 results about "Liquid state" patented technology

The invention relates to a liquid silica gel injection molding process optimization method and system in the field of intelligent manufacturing, and the method comprises the steps: obtaining mold structure data adaptive to a shrinkage rate, combining geometric characteristics of a complex structure product, adopting a topological optimization algorithm to redesign a parting surface and a demolding path, and determining a lossless demolding mold parting scheme; whether the product damage risk is lower than a preset threshold value or not is judged by simulating stress distribution of the demolding path, and if the product damage risk is lower than the threshold value, final mold manufacturing parameters are generated, and an optimized production process configuration file is obtained; extracting production rhythm data from the optimized production process configuration file, dynamically adjusting the operation cycle of the injection molding machine in combination with the demolding efficiency monitored in real time, and determining equipment parameter configuration for efficient mass production; and generating a control instruction sequence according to the equipment parameter configuration, and transmitting the control instruction sequence to the injection molding equipment and the mold heating system through the industrial Internet of Things to obtain operation state data of the automatic production line.

The invention relates to the technical field of particle analysis, in particular to a cyst particle analysis system based on an AI algorithm, and the system comprises a particle image screening module, a boundary feature module, a structure deduction module, a particle recognition module and a performance analysis module. According to the method, the gray contrast and edge change rate analysis is carried out on an encapsulated lubricant image frame sequence in a liquid or semi-solid state to realize accurate positioning of a particle target area, an edge angle continuous change slope sequence is utilized to determine a particle structure boundary sudden change position, and the particle structure edge is deduced according to a boundary trend continuous behavior. The method comprises the following steps: accurately establishing a closed structure path, identifying an adhesion region, carrying out decoupling division on particles by using included angle range and direction consistency indexes, determining the boundary contour of the particles, rapidly and accurately marking a structure dissimilatory aggregation region through the area pixel number and gray gradient characteristics of a structure unit, and improving the particle structure identification precision. And the misjudgment risk caused by particle overlapping and adhesion is reduced.

The invention discloses an autonomous inspection and homeward voyage control method and system for a blow-off pipeline robot, belongs to the technical field of intelligent pipeline detection and robot control, and aims to solve the technical problems of how to realize a stable, reliable and continuous clogging exploration task in a complex blow-off pipeline environment and realize safe self-rescue in an abnormal state. According to the technical scheme, the method comprises the following steps: data dimension reduction: receiving high-dimensional environment and motion state data from a multi-modal sensor, performing real-time dimension reduction on the high-dimensional environment and motion state data by adopting a dynamic principal component analysis method, extracting key features of state information of a robot and internal state information of a pipeline, and constructing a low-dimensional state vector; performing deep reinforcement learning control based on a liquid neural network: modeling dynamic environment state change by using the liquid neural network, and realizing path planning and control in combination with a deep deterministic strategy gradient algorithm; tracing the track; and a return flight strategy based on a graph attention network and reinforcement learning.

The invention provides an agricultural product supply chain traceability data integrity verification method based on machine learning, and belongs to the technical field of agricultural product supply chains. An agricultural product supply chain data acquisition system is established, layering is carried out according to timeliness, a data classification processing framework is constructed, and original data is classified according to complexity; establishing an agricultural product damage prediction model to identify a vulnerable link, and designing a double-layer game optimization model consisting of an upper layer model taking data integrity maximization as a target and a lower layer model taking calculation efficiency optimization as a target, a liquid neural network is adopted to construct a data fusion verification model, liquid neuron state parameters are dynamically adjusted according to the number of supply chain nodes, data timeliness and other parameters, the parameter range of each evaluation matrix is determined through a small-scale verification experiment, and finally integrity verification is executed to calculate and output a comprehensive score result. The technical problems that the agricultural product supply chain traceability data integrity verification accuracy is not high and the calculation efficiency is low are solved.

The invention provides a water working medium quasi-saturated compression high-temperature heat pump system based on an ejector, and belongs to the field of compression heat pumps. The problems that after an existing compression system flows through a throttling valve, the superheat degree of steam exhaust is large due to high-temperature lift compression, and the loss of available energy in the throttling process from condensate to a two-phase region is too large are solved. A multi-stage spraying atomization structure is adopted, a micro-nano liquid drop mist flow with the particle size controllable to be 50-200 nm and the liquid mass fraction adjustable to be 5%-10% is formed before compression, the airflow humidity regulation and control precision is remarkably improved, the quasi-saturation compression process is matched, and the thermal matching performance and the energy efficiency level of a system are effectively improved; a main flow inlet of the jet atomizer is changed into a compressor outlet from a condenser outlet, so that the response speed is increased, and meanwhile the jet atomizer is suitable for a complex variable-working-condition system; or single-stage compression is optimized into a two-stage compression form, so that higher heating temperature and more stable system operation are realized; or liquid from a lower-pressure position is injected, so that the injection capacity is improved.

The invention relates to the technical field of liquid cooling heat dissipation, in particular to a liquid cooling distribution device, liquid cooling heat dissipation equipment and a liquid cooling control method. The liquid cooling distribution device comprises a main liquid supply collecting pipe, a flow adjusting assembly, a multi-channel liquid distribution assembly, a plurality of cooling medium conveying pipelines and a central control unit, a proportioning valve of the flow adjusting assembly is connected into the main liquid supply collecting pipe in parallel, and a liquid distributor of the multi-channel liquid distribution assembly is correspondingly connected with the proportioning valve. A parallel branch of the liquid separator is connected with the liquid outlet node through the reversing valve, and the two ends of the cooling medium conveying pipeline are connected with the liquid outlet node and target heat dissipation equipment respectively; the central control unit achieves accurate distribution and dynamic adjustment of the flow of the cooling liquid by controlling the proportion adjusting valve and the reversing valve, the problem of uneven flow distribution caused by pipeline resistance difference is solved, the flow can be adjusted according to real-time heat loads, and system energy consumption is optimized.

The invention relates to the technical field of optical communication, in particular to a vapor chamber and an optical module. Heat generated by a heat source is absorbed through the lower shell, then heat absorbed by the lower shell is absorbed by the heat dissipation working medium in the steam cavity, the heat dissipation working medium is changed into a gas state from a liquid state after absorbing heat, and the gas-state heat dissipation working medium is adsorbed on the inner surface of the upper shell, is cooled into a liquid state again and returns to the bottom of the steam cavity again. Therefore, heat dissipation of a heat source in the optical module is realized. The interface contact thermal resistances are only between the heat source and the lower shell and between the upper shell and the external environment, the number of the interface contact thermal resistances on a heat transfer path is greatly reduced, the uniform temperature plate is arranged as a part of the optical module, an integrated enhanced heat dissipation structure is formed, the interface contact thermal resistances caused by split design are prevented from being increased, and the heat dissipation efficiency is improved. The heat dissipation performance of the whole optical module is improved, and the heat dissipation requirement of the high-speed optical module is met.

Embodiments of the present disclosure include apparatuses and methods for cooling an electric wheel controller are disclosed. Embodiments include an integrated circuit that controls the rotation of a wheel immersed in liquid coolant. During operation the temperature of the integrated circuit increases and the liquid coolant absorbs heat form the integrated circuit. The heated liquid coolant can then transfer heat to a housing that houses the integrated circuit and liquid coolant. In some embodiments the liquid coolant reaches temperatures that result in the liquid coolant transitioning to a gas and / or vapor. The gas and / or vapor coolant can move to portions of the housing with no liquid and transfer heat to the housing. The gas and / or vapor coolant can cool to a liquid state and move back to the pool of liquid coolant. In some embodiments a heat sink with optional fins can be soldered to the integrated circuit.

The invention provides a gel-state polymer electrolyte as well as a preparation method and application thereof, and belongs to the field of batteries. The gel-state polymer electrolyte provided by the invention comprises the following preparation raw materials: a polar organic solvent, a lithium salt, a lithium salt additive, a liquid flame retardant, a liquid monomer and an initiator, the polar organic solvent comprises 1, 3-dioxolame and ethylene glycol dimethyl ether; the dosage ratio of the lithium salt to the polar organic solvent is 1 mmol: (0.5-2) mL; the mass of the lithium salt additive is 1.5-5% of the total mass of the lithium salt and the polar organic solvent; the volume of the liquid flame retardant is 10-20% of the volume of the polar organic solvent; the volume of the liquid monomer is 10-20% of the volume of the polar organic solvent; the mass of the initiator is 0.5-2% of the total mass of the lithium salt, the polar organic solvent and the monomer. And Li < + > in the lithium salt is released after the type of the solvent is adjusted, so that the Li < + > transference number and the ionic conductivity are improved.

The present disclosure relates to an active heat dissipation apparatus including a thermal conduction panel body having a refrigerant flow space in which a refrigerant is stored and flows, in which the refrigerant flow space includes a first refrigerant flow path having a vaporization zone in which the refrigerant changes from a liquid phase to a gaseous phase, and a plurality of second refrigerant flow paths provided in a condensation zone provided in a portion other than the first refrigerant flow path and configured to guide a flow of a liquid refrigerant to the vaporization zone, and in which the second refrigerant flow paths form independent flow paths for the liquid refrigerant by a plurality of inclined guides, which protrude in the refrigerant flow space, have surfaces that adjoin one another and are in surface contact with one another, and are provided straight and inclined toward the first refrigerant flow path so as to be physically separated from the adjacent second refrigerant flow path, and by a plurality of strength reinforcement portions respectively formed on the plurality of inclined guides, thereby significantly improving heat dissipation performance.

The invention discloses a composite conductive filler, a shielding material and a cable, the composite conductive filler comprises the following raw materials: conductive carbon black, carbon nanotubes and liquid metal, and the mass ratio of the conductive carbon black to the carbon nanotubes to the liquid metal is (80-90): (1-15): (1-12). The composite conductive filler provided by the invention has a ternary synergistic efficient conductive network structure, the contact resistance between the conductive fillers is remarkably reduced, the melt index of the composite conductive filler is greatly improved, meanwhile, micropores of the material can be filled at high temperature, the thermal cycle aging property of the material is remarkably reduced, and the service life of the material is prolonged. The integration of a high-stability conductive network, good processing fluidity and excellent interface thermal mechanical performance is realized. The key technical problem that conductivity, processability and long-term stability of a high-voltage cable semi-conductive shielding material are difficult to consider at the same time is solved, and particularly, the high-voltage cable semi-conductive shielding material can be applied to ultra-high voltage scenes of 110 kV and above.

The invention relates to the technical field of nano metal production, and particularly discloses a crucible liquid level height measuring method and a crucible liquid level height measuring device.The crucible liquid level height measuring method comprises the following steps that a cooling jacket is arranged outside a crucible, cooling water is introduced, after the water amount is stable, the crucible and the cooling jacket are weighed through a sensor, and the crucible liquid level height is measured; obtaining a weight value a; equipment works, evaporation of the metal raw materials is reduced, and a real-time weight value c is obtained; and according to the formula, the liquid level remaining height = ((c-a) / liquid metal density) / crucible bottom area, the liquid level remaining height in the crucible is calculated, and the feeding time is judged according to the liquid level remaining height. The crucible liquid level height measuring device comprises a vacuum container, a crucible and a weighing sensor are arranged in the vacuum container, and the crucible is placed above the weighing sensor. The metal powder manufacturing device has the effect of accurately judging the feeding time when metal powder is manufactured.

The invention relates to the technical field of wires and cables, and discloses a fire-resistant cable based on an overhead photovoltaic system, a braided ring in a fire-resistant flame-retardant layer is formed by winding flame-retardant crosslinked polyethylene fibers, air circulation is guaranteed by virtue of a large number of pores among ropes, and when the fire-resistant cable is burnt by flame, high-temperature gas enters the space of the braided ring, and then the braided ring is sealed. On the other hand, the liquid drainage rod is pulled through contraction traction force, the piston disc is promoted to extrude the flame-retardant liquid in the storage sleeve, after the liquid is sprayed out through the liquid drainage holes, one part of the liquid directly acts on a flame area for fire extinguishing and flame retarding, and the flame-retardant effect is achieved. Most of the materials are adsorbed and retained by the porous structure of the braided ring, are gradually decomposed at a continuous high temperature to release flame-retardant gas, and react with braided ring fibers to form a liquid-state and solid-state composite heat-insulating layer to fill tiny pores which are still remained after shrinkage, so that the integrity of a cable circuit at the initial stage of a fire disaster is guaranteed.

The invention discloses a paper-based electrode based on liquid metal assisted laser-induced graphene and a preparation method thereof.The paper-based electrode comprises a substrate layer, a functional layer, a conductive layer and a hydrophobic layer which are sequentially arranged, the substrate layer is made of paper, the functional layer is formed by coating liquid metal nanoparticles, and the conductive layer is formed by coating liquid metal nanoparticles. The conductive layer is an electrode formed by a laser-induced graphene technology, and the hydrophobic layer is a fluid control area formed by wax packaging. According to the invention, paper is used as a substrate, liquid metal is combined with a laser-induced graphene technology, surface modification is carried out through eutectic gallium indium (EGaIn), polyimide (PI) and N-methyl pyrrolidone (NMP) composite slurry, and then a conductive electrode pattern is formed on the surface of the paper substrate by using a laser-induced graphene (LIG) technology. The method has the advantages of simple preparation, low cost, environmental friendliness and the like, and the prepared paper-based electrochemical biosensor has excellent conductivity, mechanical flexibility and electrochemical activity.

A liquid cryogen stored in a liquid cryogen space of a closed insulated cryogenic storage vessel is subcooled by allowing it to enter into a conduit disposed in the liquid cryogen space where it is expanded by a pressure reducer in the conduit, thereby producing a cooled biphasic mixture of the cryogen in liquid and vaporized forms. The cooled biphasic mixture has a temperature lower than that of the liquid cryogen in the liquid cryogen space. Heat is transferred across the conduit from the liquid cryogen in the liquid cryogen space to the cooled biphasic mixture.

The utility model provides a liquid carbon dioxide energy storage refrigerating system. The liquid carbon dioxide energy storage refrigerating system comprises an energy storage system, a refrigerating system and a heat circulation system. The energy storage system comprises a low-pressure liquid storage tank, a first throttling pressure reducing valve, a first heat exchanger, a compressor, a second heat exchanger and a high-pressure liquid storage tank which are sequentially connected in a sealed mode. The refrigerating system comprises a high-pressure liquid storage tank, a second throttling pressure reducing valve, a third heat exchanger, a fourth heat exchanger and a low-pressure liquid storage tank which are sequentially connected in a sealed mode. The heat circulation system comprises a cold storage tank, the cold storage tank is coupled with the first heat exchanger through a circulation pipeline, and the cold storage tank is coupled with the fourth heat exchanger through a circulation pipeline. In the low peak period of electricity utilization, the electric energy is stored in the form of high-pressure liquid carbon dioxide. And the liquid carbon dioxide is gasified and cooled through pressure reduction of the second throttling pressure reducing valve so as to provide cold energy. And meanwhile, cold energy generated in the refrigeration process can be stored through the heat circulation system and used for cooling carbon dioxide in the energy storage process.

The invention provides a low-temperature heat pump liquid impact prevention and supercooling degree strengthening control method based on dual-mode self-adaptive regulation and control, which comprises the following steps: monitoring the bottom temperature of a gas-liquid separator and the change rate of the temperature, and controlling the supercooling degree of the gas-liquid separator on the basis of the difference value between the temperature and a preset safety critical temperature and the difference value between the change rate and a preset minimum temperature rise rate, constructing a liquid impact risk index; based on the liquid impact risk index, the pulse power excitation intensity is calculated, the number of opened spraying channels is selected according to the pulse power excitation intensity, the pulse duty ratio of each channel is adjusted, the high-temperature gas-state refrigerant is controlled to be injected into the bottom of the gas-liquid separator, and the liquid-state refrigerant is driven to evaporate; generating a mode switching score, and generating a mode switching signal when the mode switching score exceeds a mode switching threshold value and the temperature of the gas-liquid separator reaches a safety lower limit; and according to the mode switching signal, a supercooling degree strengthening mode is switched, and the opening degree of an economizer branch electronic expansion valve is adjusted according to the deviation between the current supercooling degree and the target supercooling degree.

The invention discloses a preparation method of a solid-state battery unit and a solid-state battery containing a composite multifunctional electrolyte layer, multifunctional integration of a single-layer electrolyte is realized through a composite material system, and compared with a traditional PE / PP diaphragm system, the proportion of an inorganic material in the composite electrolyte layer is greater than 90%, and the composite electrolyte layer has excellent high-temperature resistance and can be used for preparing a solid-state battery. And the structural integrity is kept when the battery is possibly subjected to thermal runaway. The localized adding mode of the ionic liquid and the conductive salt is optimized, and high-temperature degradation is avoided; the manufacturing process is simplified, tight interface contact between the electrolyte layer and the electrode is ensured, and impedance is reduced. Compared with a traditional liquid lithium ion battery, the solid-state battery prepared by the invention has the liquid content of less than 1%, and has high safety and cycle performance. The problems that an electrolyte layer in a traditional solid-state battery is single in function (for example, only ion conduction is concerned), the interface impedance is large, the thermal stability is poor, and the mechanical strength is insufficient are mainly solved, and the comprehensive performance and safety of the battery are improved.

A fluid mattress includes:a fluid supply unit capable of supplying a fluid;a fluid path to which the fluid is supplied from the fluid supply unit;a plurality of first cells connected to each other;a plurality of second cells connected to each other;a first solenoid valve including a first end connected to the plurality of first cells and a second end connected to the fluid path;a second solenoid valve including a first end connected to the plurality of second cells and a second end connected to the fluid path;an external solenoid valve including a first end connected to an outside and a second end connected to the fluid path;a pressure sensor that measures a pressure of the fluid in the fluid path; anda controller that receives input of a measurement result by the pressure sensor, and controls the fluid supply unit, the first solenoid valve, the second solenoid valve, and the external solenoid valve.The controller can implementa first mode in which a pressure in the second cell is set to be a first pressure, and a pressure in the first cell is set to be equal to or lower than a second pressure lower than the first pressure, anda second mode in which a pressure in the first cell is set to be the first pressure, and a pressure in the second cell is set to be equal to or lower than the second pressure.The controller, when implementing the second mode by shifting from the first mode, stops the fluid supply unit, causes the first solenoid valve to be in a closed state, causes the second solenoid valve and the external solenoid valve to be in an open state, determines the first pressure based on time during when a measurement value by the pressure sensor changes from a third pressure lower than the first pressure and higher than the second pressure to a fourth pressure lower than the third pressure and higher than the second pressure, and causes the first pressure to be higher as the time is longer.

The utility model belongs to the technical field of liquid containing, and relates to an anti-infiltration structure and a containing device with an anti-infiltration function. The anti-infiltration structure is used for preventing liquid from infiltrating a liquid container and comprises an inner covering film and an anti-infiltration layer, the inner covering film is arranged on the inner wall of the liquid container; the anti-infiltration layer is arranged on the surface of the inner covering film and comprises a plurality of first protruding structures and a plurality of second protruding structures, the first protruding structures are distributed on the surface of the inner covering film at intervals, and the second protruding structures are distributed between every two adjacent first protruding structures at intervals; the height of the first protruding structures is larger than that of the second protruding structures, and the distance between every two adjacent second protruding structures is smaller than the diameter of liquid. According to the anti-infiltration structure provided by the scheme, the problem that the liquid metal gallium is hung on the wall of the container during storage and containing is effectively solved, the utilization rate of the liquid metal gallium is increased, waste is reduced, the inner wall of the container does not need to be cleaned with an acid-base solution, and the liquid metal gallium is prevented from being polluted.

The invention discloses a pollution discharge detection method and system based on deep learning, and relates to the technical field of pollution discharge detection.During operation of the system, a spectrum reaction parameter set, an acoustic disturbance parameter set and a liquid structure parameter set are collected at different nodes of a chemical discharge port respectively, and non-common pollution discharge behavior characterization factors are obtained; the method comprises the following steps: respectively constructing a seepage and escape separation potential coefficient CSD, a disturbance stable phase drive factor DMI and a state amplitude coupling mapping factor EMC based on three parameter groups, calculating an unstable discharge disturbance index UDEI through a preset fusion function, judging a pollution discharge grade according to an index value, backtracking an abnormal source area according to a residual trend of each parameter group when the UDEI exceeds a judgment threshold, and dynamically selecting a feedback control strategy to achieve the purpose of controlling the pollution discharge grade. And calculating a pollution discharge disturbance evolution index WDEC based on the change trend of the UDEI in the monitoring time period to represent medium and long term emission risks, packaging the WDEC, the UDEI and a control response record to generate a report, and writing the report into the block chain network.

The invention belongs to the field of flexible electronic devices, and particularly relates to a flexible electronic skin system based on a magnetorheological fluid microneedle structure. According to the system, a micro-needle array filled with magnetorheological fluid is constructed on a flexible substrate, and dynamic adjustment of local rigidity and deformation characteristics of the micro-needle array is achieved under the action of an external magnetic field; a sensing electrode array is integrated below or inside the microneedle array; the microneedle array deforms under the action of stress, the distance or contact state change between the microneedle array and the integrated sensing electrode array is converted into capacitance, resistance or impedance signals, multi-point distributed touch or pressure sensing is achieved, and real-time acquisition and output are completed through the sensing electrode array and the signal processing module. The magnetorheological fluid is encapsulated in the hollow microneedle array structure for the first time, an arrayed flexible arrangement form is constructed, dynamic reversible adjustment of the rigidity of the microneedle unit between a liquid state and a solid-like state under the action of an external magnetic field is achieved, and the micro-needle array structure is suitable for flexible wearable equipment and a bionic interaction interface.

The invention belongs to the technical field of biomedical materials, and particularly relates to preparation of a hydrogel ultrasonic coupling patch for long-term stable continuous monitoring. According to the patch, an interpenetrating double-network structure system is formed by an alginate component and a polyacrylic acid component through intermolecular interaction, and the patch has excellent adhesion performance and mechanical performance. Compared with the prior art, by optimizing the components and the preparation process, the obtained hydrogel patch has the following advantages that the excellent acoustic impedance matching characteristic is achieved, and high-fidelity transmission of ultrasonic signals is ensured; the tissue adhesion is strong, and long-term stable attachment can be realized; good mechanical stability and durability are achieved, and the method is suitable for continuous monitoring application. The product effectively solves the technical problems that the traditional liquid coupling agent is easy to lose, the solid coupling patch is insufficient in adhesion and the like, and has important application value in the fields of medical ultrasonic diagnosis and long-term monitoring.

An immersion cooling system includes a box body, a condensing structure and a pressure adjusting module. The box body has a first containing space, the first containing space is adapted to contain a heat dissipation medium, and at least one heat generating component is disposed in the first containing space to be immersed in the heat dissipation medium which is in liquid state. The condensing structure is disposed in the first containing space and above the heat dissipation medium which is in liquid state. The pressure adjusting module is adapted to actively drive a fluid in the first containing space to flow into the second containing space, such that a pressure in the first containing space is reduced to be less than an external pressure. In addition, an electronic apparatus having the immersion cooling system and a pressure adjusting module are also provided.

The present application belongs to the field of server cooling. Disclosed are a liquid cooling device and a server system. The liquid cooling device comprises: a housing and a heat conduction tube assembly; a cooling liquid is provided in the housing, and is configured to immerse a server assembly; the heat conduction tube assembly is arranged in the housing and has a first end and a second end which are opposite to each other, wherein the first end is located below a liquid level of the cooling liquid, the second end is located above the cooling liquid, and the second end is connected to a cooling assembly; and the cooling assembly transfers a cold source fluid to the second end, the cold source fluid cools the second end, a heat diffusion working medium is placed inside the heat conduction tube assembly, the state of the heat diffusion working medium is changeable, and the states of the heat diffusion working medium include a gaseous state and a liquid state.

The invention provides an optical silica gel part liquid forming automatic production taking-out device which comprises an injection molding machine rack, a three-plate mold set, a first material taking assembly, a second material taking assembly, a water gap taking and placing assembly, a master control system, a servo drive translation mechanism and a control screen. The three-plate mold set is correspondingly installed in the middle of the injection molding machine rack, and a truss is installed on the injection molding machine rack; the first material taking assembly and the second material taking assembly are installed on the truss and located on the two opposite sides of the three-plate mold set correspondingly, and the water gap taking and placing assembly is installed on the side, close to the first material taking assembly, of the truss. The control screen is installed on the portion, close to one side of the second material taking assembly, of the truss. A servo drive translation mechanism matched with the first material taking assembly and the second material taking assembly is installed above the injection molding machine rack in the length direction of the injection molding machine rack. The production efficiency is improved.

The invention relates to the technical field of liquid cooling heat dissipation control. The invention provides a temperature self-adaptive control method, system and device for a liquid cooling cable of a high-power charging gun and a storage medium. The method comprises the following steps: acquiring a cable body structure, a charging condition and a cooling liquid state parameter, and constructing an initial data set; based on a data set fusion heat conduction mechanism, establishing a dynamic control model of the cable temperature, the working condition and the cooling liquid flow rate; collecting parameters in real time, inputting the parameters into the model, and calculating a target temperature and a cooling liquid flow velocity threshold; comparing the target temperature with a safe temperature threshold, if the target temperature exceeds the standard, adjusting the rotating speeds of the water pump and the fan, otherwise, maintaining the current state; actual temperature and flow velocity are monitored in real time, and model coefficients are corrected according to temperature difference. The problems that an existing liquid cooling control method for the high-power charging gun is lagged in response, high in computing resource requirement and insufficient in control precision and energy efficiency under complex working conditions are solved.

The invention provides an online monitoring device for multiple nuclides in liquid effluent, and particularly relates to the technical field of radioactive substance detection. The online monitoring device comprises a shell, a cascade separation module, a fluid control module, a detection module and a control system, the cascade separation module, the detection module and the control system are arranged in the shell, the cascade separation module comprises a plurality of resin columns and a plurality of separated liquid collecting bottles communicated with the resin columns, and the separated liquid collecting bottles are communicated with the resin columns. The fluid control module comprises a liquid storage device, an injection pump and a control valve, the liquid storage device is respectively communicated with the plurality of resin columns through pipelines, the injection pump and the control valve are respectively arranged on the pipelines and are used for controlling the flow direction and the flow velocity of fluid in the liquid storage device, and the detection module is used for detecting the radioactive activity of nuclide; the control system is used for controlling operation of the cascade separation module, the fluid control module and the detection module. According to the invention, synchronous monitoring of multiple nuclides is realized, the multi-nuclide monitoring efficiency is improved, and the monitoring cost is reduced.

The utility model relates to the field of air conditioners, and particularly discloses a variable-flow-path heat exchanger and an air conditioner outdoor unit, the variable-flow-path heat exchanger comprises a single-cooling condenser core body, an inlet pipe assembly and an outlet pipe assembly, the single-cooling condenser core body comprises a refrigerant overheating section, and the refrigerant overheating section is communicated with the inlet pipe assembly; the refrigerant two-phase section is communicated with the refrigerant overheating section, one end of the outlet pipe assembly is communicated with the refrigerant overheating section, and the other end of the outlet pipe assembly is communicated with the refrigerant two-phase section; the refrigerant supercooling section communicates with the refrigerant two-phase section, and the refrigerant supercooling section communicates with the end, away from the refrigerant superheating section, of the inlet pipe assembly; and the heat exchange areas of the refrigerant superheating section, the refrigerant two-phase section and the refrigerant supercooling section are sequentially reduced. According to the scheme, in the process, the gas-liquid state switching of the refrigerant is matched with the heat exchange area of the refrigerant superheating section, the refrigerant two-phase section and the refrigerant supercooling section in size, so that the refrigerant keeps a stable speed when flowing in the single-cooling condenser core, and the heat exchange efficiency is improved.

The invention belongs to the technical field of photoelectric detection, and relates to a gallium oxide nanowire array type solar blind photoelectric detector and a preparation method thereof. Spreading liquid metal gallium on the surface of the substrate to form a liquid metal gallium layer on the surface of the substrate; performing vacuum evaporation on the surface of the liquid metal gallium layer to form a gold film layer to obtain a device precursor; and heating the device precursor to 400-1000 DEG C at a heating rate of 10-15 DEG C / min, and carrying out heat treatment for 1-2h to obtain the sandwich structure device. According to the method, the preparation mode of the array type gallium oxide nanowire is simplified, gallium metal left in the growth process is used as the electrode, the tedious and complex technological process needed in the previous device preparation process is improved, the ordered and regular gallium oxide nanowire array structure is prepared, and the photoelectric detection effect is improved.