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1394 results about "Latent heating" patented technology

Temperature and humidity self-adaptive control system and method for drying flower traditional Chinese medicinal materials

The invention discloses a temperature and humidity adaptive control system and method for drying flower traditional Chinese medicinal materials, and the system comprises a humidity gradient monitoring module which is used for deploying a 12-channel capacitive humidity sensor spiral array and a laser radar, generating a three-dimensional humidity field thermodynamic diagram in combination with a Kriging interpolation method, calculating a humidity gradient change rate in real time, and carrying out the early warning of local abnormality; the heat-humidity ratio regulation and control module is used for integrating humidity gradient monitoring data and a real-time result of the evaporation latent heat calculation module based on a fuzzy PID algorithm, dynamically adjusting the heating power and the rotating speed of a dehumidification fan, and meanwhile, integrating a PVDF piezoelectric film sensor to monitor petal stress; the evaporation latent heat calculation module is used for predicting a future evaporation rate by combining an LSTM neural network based on an edge calculation unit and providing key parameters for the energy supply matching module; the energy supply matching module is used for outputting a combined control instruction of the heating power and the air door opening degree; and the air volume balance optimization module is used for dynamically adjusting air volume distribution according to the humidity gradient monitoring data.
Owner:INST OF DESERTIFICATION CONTROL NINGXIA ACAD OF AGRI & FORESTRY SCI (NINGXIA KEY LAB OF SAND CONTROL & WATER & SOIL CONSERVATION)

Temperature control method of liquid cooling charging gun for charging electric vehicle

The invention discloses a liquid cooling charging gun temperature control method for charging an electric vehicle, and relates to the technical field of liquid cooling control, and the method comprises the steps: carrying out the liquid cooling initialization, detecting the integrity of a bionic fractal microchannel and the distribution of phase change microcapsules, calibrating a magnetic field parameter, loading a pre-trained prediction model and a thermal resistance network model, and outputting a ready signal to a charging pile; after the charging pile communicates with a vehicle, according to charging power and environmental parameters, matching an initial flow, a magnetic field intensity threshold value and a piezoelectric vibration frequency, and activating a phase change microcapsule latent heat mode and pulse cooling; and executing pulse cooling and magnetic field fluctuation in a low-flow latent heat mode to remove sediments, recovering a full-flow mode when the temperature falls back, and monitoring an abnormal event to trigger grading protection at the same time. The dynamic heat dissipation performance and working condition adaptability of the liquid cooling charging gun are improved by constructing bionic fractal flow channel-phase change microcapsule-magnetic field regulation and control.
Owner:GUANGZHOU ZHICHONG AMPEREX TECH CO LTD

Thermal management control method and device for new energy automobile battery

The invention discloses a thermal management control method and device for a new energy automobile battery, and relates to the field of battery thermal management control, the device comprises an entropy change module, a fault module, a decision module, a phase change module and a scheduling module, entropy change intensity and nuclear heat flow field analysis is carried out on collected current and voltage signals to obtain an aging thermal topology, and the aging thermal topology is subjected to thermal management control. The method comprises the following steps: constructing an anisotropic diffusion equation based on aging thermal topology in combination with a fault diffusion tensor, discretizing a sub-strategy set for a safety margin field, constructing a cooling Nash game, analyzing through a payment matrix and a replicated dynamic equation, screening a stable strategy, mapping, and constructing an implicit phase change criterion model for the surface temperature of a battery to obtain a phase change cumulant; the phase change cumulant latent heat is analyzed and then cooperatively arbitrated with the cooling membership degree to obtain arbitration cooling capacity, the water pump flow is obtained through limiting operation based on the arbitration cooling capacity and the temperature deviation, then cubic root mapping is conducted on the water pump flow and the arbitration cooling capacity to obtain the fan rotating speed, and accurate control over battery thermal management is achieved.
Owner:JINGDEZHEN UNIV

Cooling tower device for recovering heat from waste steam

The invention relates to a cooling tower device for recovering heat from waste steam, which adopts three layers of transversely arranged heat exchange tube groups, realizes cascade recovery of heat energy of waste steam through communication of an air inlet and an air outlet, and is additionally provided with fins on the surfaces of heat exchange tubes to enhance the gas-liquid mass transfer efficiency. The core innovation lies in that a built-in mechanical cleaning mechanism is arranged, a driving assembly is in linkage with multiple sets of bidirectional adapters through a rotating shaft, brush rods distributed in the circumferential direction are driven to conduct high-frequency physical scraping on heat exchange pipes and fins, scale deposition is effectively restrained, and compared with traditional chemical cleaning, the shutdown maintenance time is shortened; the steam latent heat recovery rate can be increased, meanwhile, secondary pollution is avoided through a full-mechanical cleaning scheme, modular layout is adopted in structural design, interlayer fluid distribution of the heat exchange pipe set is achieved through a U-shaped pipe and a straight pipe, it is ensured that the resistance coefficient of the system is lower than that of similar equipment, and the device has remarkable energy-saving benefits in industrial scenes such as chemical engineering and metallurgy.
Owner:WUXI YUNUO COOLING EQUIP MFG CO LTD

Steam condensation type adsorption device for extracting lithium from salt lake brine and production process

The invention discloses a steam condensation type adsorption tower device system for extracting lithium from plateau salt lake brine, and belongs to the technical field of salt lake lithium extraction processes. A condenser of a multi-effect evaporation system and a traditional adsorption tower are coupled into a whole, the optimal temperature in the salt lake brine lithium adsorption process is achieved, and the lithium ion adsorption efficiency of the adsorption tower is improved; latent heat of vaporization released by condensation of secondary steam generated in a last-effect evaporator in a multi-flow tube bundle directly heats salt lake brine for adsorption and desorption processes, so that the adsorption rate of lithium in the salt lake brine is increased, fresh water required by a subsequent desorption process can be preheated, and the energy consumption cost of lithium extraction from the salt lake is reduced; the temperatures of an adsorbent and salt lake brine at different positions in the adsorption tower are optimized by reasonably arranging the flow of the condensation heat exchange tube bundle, the temperature of the adsorbent and the salt lake brine is gradually increased from top to bottom in the adsorption tower, and the temperature in the adsorption tower is increased from top to bottom to compensate the reduction of the adsorption rate caused by the reduction of the lithium ion concentration.
Owner:SHANDONG GRAD GROUP +2

Preparation method of composite phase-change temperature-regulating organic fiber membrane material with flexible core-shell structure

The invention discloses a preparation method of a composite phase-change temperature-adjusting organic fiber membrane with a flexible core-shell structure, and belongs to the field of intelligent textile materials.The preparation method comprises the following steps that polyacrylonitrile (PAN) serves as a sheath layer material, n-octadecane serves as a core layer phase-change material, and the composite phase-change fiber membrane is prepared through a melt spinning method and a coaxial electrostatic spinning technology. According to the invention, the fiber membrane with high melting enthalpy value (171.6 J / g), excellent thermal stability (the latent heat is still 117.7 J / g after 100 times of heating-cooling circulation) and excellent mechanical properties (the tensile strength is 2.418 MPa, the tensile yield stress is 2.331 MPa, the tensile strain at break is 36.5%, and the elastic modulus is 58.226 MPa) can be prepared; a new thought is provided for preparing intelligent textiles with good flexibility and efficient heat management capability.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

Comprehensive control method for mixed operation of roof radiant cooling and independent fresh air dehumidification system

The invention discloses a roof radiant cooling and independent fresh air dehumidification system mixed operation comprehensive control method, and belongs to the technical field of building environment control and heating ventilation air conditioning. The method comprises the steps that the radiant cooling capacity and the dehumidification capacity of a surface air cooler are calculated through a heat balance equation, and an optimization objective that a top plate radiation system bears 70% sensible heat load and a fresh air system bears 90% humidity load is set; an anti-condensation strategy is triggered by combining dew point temperature monitoring, a control variable is adjusted by taking minimization of energy consumption as a target in a rolling time domain, and it is ensured that the indoor temperature ranges from 23 DEG C to 26 DEG C, the humidity ranges from 40% to 60%, the black ball temperature difference is smaller than or equal to 2 DEG C, and the condensation risk is smaller than or equal to 6%. The method is suitable for energy-saving temperature and humidity regulation and control of large public buildings, and efficient cooperative processing of sensible heat and latent heat loads is achieved.
Owner:ZHONGSEN GREEN REAL ESTATE INVESTMENT MANAGEMENT CO LTD

Preparation method of polyurethane-based flexible phase change material and battery thermal management device

The invention relates to a preparation method of a polyurethane-based flexible phase-change material and a battery heat management device. Polyethylene glycol is used as a phase-change material, and adipic dihydrazide (ADH) and 4, 4 '-diphenyltetracarboxylic dianhydride (ADH) are integrated at a condensation end of a heat pipe; at least one of 4, 4 '-diaminobenzanilide (DABA) is used as a cross-linking agent, and at least one of HMDI or IPDI is used as a chain extender to prepare the polyurethane-based flexible phase change material with enthalpy value, flexible rigidity and appropriate phase change temperature. The material not only has excellent mechanical strength and thermal stability, but also has healing property, recoverability and shape memory function. The polyurethane-based flexible phase change material serves as an energy storage film and forms a sealing structure with the condensation end through mechanical pressing. When the temperature rises, the energy storage film B1 absorbs heat and expands, the contact area with the outside is increased, the heat dissipation power is improved, and the heat dissipation efficiency and the heat load management capacity are remarkably improved by maximizing the heat transfer area and utilizing the high latent heat characteristic.
Owner:HEBEI UNIV OF TECH

Heating ventilation air conditioner control method, system and equipment based on dynamic heat load prediction

The invention provides a heating ventilation air conditioner control method, system and device based on dynamic heat load prediction and a storage medium. The method comprises the following steps: acquiring indoor individual physiological data, environmental parameters and regional personnel distribution data in real time; determining a real-time individual metabolic rate equivalent based on the individual physiological data and the environmental parameters; aggregating the individual metabolic rate equivalents according to the regional personnel distribution data, determining the total heat load and the total heat load change rate of each indoor region, and decomposing the total heat load into a sensible heat load and a latent heat load; and on the basis of the sensible heat load, the latent heat load and the total heat load change rate, air supply temperature, air supply amount and humidity control instructions of the heating ventilation air conditioning system for feed-forward adjustment are generated. According to the technical scheme, dynamic thermal load prediction based on individual physiological data and environmental parameters can be achieved, the indoor total thermal load is quantified in real time, and the feedforward adjustment control instruction of the heating ventilation air conditioning system is generated.
Owner:SUZHOU SICUI INTEGRATED INFRASTRUCTURE TECH RES INST CO LTD

Flexible anisotropic conductive hydrated salt phase change gel as well as preparation method and application thereof

The invention belongs to the technical field of phase change materials, and particularly relates to flexible anisotropic conductive hydrated salt phase change gel as well as a preparation method and application thereof. The flexible anisotropic conductive hydrated salt phase change gel comprises hydrogel and hydrated salt adsorbed in a semi-interpenetrating three-dimensional network structure of the hydrogel, the hydrogel is prepared from the following raw materials in parts by weight: 1 to 15 parts of hydrophilic modified conductive filler, 4 to 15 parts of gel polymer, 1 to 7 parts of polysaccharide substance and 75 to 94 parts of water. The flexible anisotropic conductive hydrated salt phase change gel material disclosed by the invention has high phase change latent heat, high decomposition heat storage and anisotropic conductivity, can realize high-efficiency heat dissipation and temperature control through phase change at high temperature, and can be decomposed to absorb heat when thermal runaway occurs so as to inhibit generation and spreading of thermal runaway; at low temperature, the material can be electrified in one direction to heat the battery, and insulation can be maintained in the other direction, so that the full-temperature-range heat management of the lithium ion battery is realized, and the safety is improved.
Owner:SOUTH CHINA UNIV OF TECH

Self-heating tempering and valuable metal partition recycling method for copper smelting slag

The invention provides a self-heating tempering and valuable metal partition recycling method for copper smelting slag. The method comprises the steps that S1, a slag tempering agent is prepared from industrial sulfate waste and a low-cost carbonaceous reducing agent; s2, in the copper smelting matte smelting deslagging process, a tempering agent is added into molten slag, and phase adjustment reaction is completed through latent heat of the molten slag; s3, after the slag is slowly cooled, classifying the upper part and the lower part of materials in the slag ladle, and performing conventional crushing, ore grinding and flotation on the upper part to recover valuable metals; and S4, the lower part of sulfonium-rich slag enters a direct return smelting system or is crushed and levigated, and then copper concentrate is recycled through magnetic separation-reverse flotation. According to the copper smelting slag self-heating tempering and valuable metal partition recycling method, synergistic low-carbon treatment is conducted on copper smelting slag and sulfate waste residues according to the concept of treating waste with waste, the method has the advantages of being high in metal recycling rate, low in cost, environmentally friendly, simple in process and material and the like, good economic benefits and environmental benefits are achieved, and the industrial popularization difficulty is small.
Owner:CENT SOUTH UNIV +1

A waste heat recovery device for a roasting furnace

The present invention relates to the technical field of alumina production. The present invention discloses a waste heat recovery device for a roasting furnace, which comprises a flue gas fan, a heat exchange pipeline and an exhaust hood. A flue gas pipeline is arranged at the inlet of the flue gas fan and communicated with an external roasting furnace. The outlet of the flue gas fan is communicated with a plurality of heat exchange pipelines. The top ends of the heat exchange pipelines are jointly communicated with the exhaust hood. A flue gas outlet pipe is arranged at the top of the exhaust hood, and an outlet valve is arranged on the flue gas outlet pipe. It is characterized in that: a converging throat is arranged in the middle of the heat exchange pipeline, and a diffusor wall with horizontal displacement is arranged above the throat. The advantages of the present invention compared with the prior art are as follows: by performing heat exchange while pressurizing the flue gas flow, the water vapor contained in the flue gas can be liquefied and release heat, and its latent heat of vaporization can be fully released and absorbed. For the field to which the present invention is applied, the latent heat of vaporization can be used to heat mother liquor and flat plate washing water, saving the steam cost for heating flat plate washing water, reducing energy consumption and reducing emissions.
Owner:SHANDONG DONGYUE ENERGY JIAOKOUFEIMEI ALUMINUM CO LTD

Climate self-adaptive photovoltaic cooling method and system based on interface evaporation

The invention relates to the field of photovoltaic power generation, and particularly discloses a climate self-adaptive photovoltaic cooling method and system based on interface evaporation, and the system comprises a hydrophilic and hydrophobic composite radiation refrigeration film which is used for capturing atmospheric moisture through a radiation refrigeration effect under a low-radiation condition to form a cooling water source; the bionic water conveying structure comprises a modified silicone tube and a juncus roemerianus bundle and is used for conveying the captured water to the high-level water tank through capillary action; according to the invention, by fusing interface evaporation and radiation refrigeration technologies, the system realizes efficient cooling and energy recovery of the photovoltaic module; under the condition of strong irradiation, the gradient wettability interface evaporation layer takes away waste heat of the module through directional water film flow, so that the temperature of the photovoltaic module is reduced, the photoelectric conversion efficiency is improved, and meanwhile, the daily generating capacity is increased; the cooling effect is obviously better than that of a traditional natural convection or phase change material cooling mode, and efficient heat transfer is achieved through phase change latent heat utilization of interface evaporation.
Owner:李玲

Electric energy conversion and power regulation and control method based on solar heat exchange coupling system

The invention relates to the technical field of solar heat utilization, and discloses an electric energy conversion and power regulation and control method based on a solar heat exchange coupling system, which comprises the following steps: calculating the phase change latent heat release rate and pressure and temperature sensitivity of a working medium in real time through a nonlinear prediction model, and establishing a compensation factor to dynamically correct the fusion weight of temperature and pressure signals; the shape memory alloy runner is driven to adjust the branch angle in a self-adaptive mode within the range of 45-75 degrees; constructing an energy potential matching matrix of the temperature gradient of the heat storage module and the output voltage of the power generation system, and combining a pulse type energy release strategy to maintain power stability; and controlling adjacent flow channel branches to generate a phase difference based on pressure fluctuation spectrum characteristics to realize fluctuation offset. According to the method, through closed-loop control of thermodynamic parameter compensation and flow channel dynamic adjustment and space-time collaborative optimization of energy potential matching and pulse release, continuous and stable power generation under the intermittent irradiation condition is achieved, the overall energy efficiency of the system is improved, and operation is more stable.
Owner:HUNAN BAIRUN GREEN ENERGY TECHNOLOGY CO LTD

Low-temperature thermochromic super-hydrophobic anti-icing coating and preparation method thereof

The invention relates to the technical field of super-hydrophobic anti-icing coatings, in particular to a low-temperature thermochromic super-hydrophobic anti-icing coating and a preparation method thereof. According to the specific technical scheme, low-temperature thermochromic phase change microcapsules and nanoscale hydrophobic silicon dioxide particles are dispersed in an organic solvent, an adhesive and a curing agent are added, and the super-hydrophobic surface with the micro-nano hierarchical structure, the latent heat regulation function and the temperature visual feedback function is constructed through a spraying method. The obtained coating has excellent super-hydrophobicity, and water drop adhesion can be effectively reduced; the phase change microcapsules contained in the coating release latent heat during low-temperature solidification, and surface temperature reduction and icing are remarkably delayed; and meanwhile, the color of the coating is obviously and reversibly changed along with the reduction of the temperature, so that the visual early warning of the low-temperature icing risk is realized. The problems that a traditional super-hydrophobic coating is insufficient in low-temperature anti-icing long-term effect and lacks an early warning function are solved, the super-hydrophobic coating is suitable for low-temperature anti-icing occasions, and the sensing-regulation-protection integrated function is achieved.
Owner:SCNU QINGYUAN INSTITUTE OF SCIENCE & TECHNOLOGY INNOVATION CO LTD +1

Solar energy-phase change heat storage synergetic parallel evaporator segmented defrosting system and solar energy-phase change heat storage synergetic parallel evaporator segmented defrosting method

The invention discloses a solar energy-phase change heat storage collaborative parallel evaporator segmented defrosting system and method, and belongs to the technical field of air source heat pump defrosting and new energy utilization. Comprising evaporator sets (A / B) arranged in parallel, a compressor, a condenser, a four-way reversing valve, a solar heat collecting plate, an electromagnetic valve, a temperature sensor and a connecting pipeline. A phase change material interlayer is embedded in a finned tube of the evaporator set, the phase change material is connected with the solar heat collection plate through a circulation pipeline, the phase change material absorbs or releases a large amount of latent heat in the solid-liquid phase change process, and heat collected by the solar heat collection plate is stored in a high-density mode. When the evaporator is frosted, heat stored by the phase change material can be released directionally, and melting of a frost layer is accelerated. Through the synergistic effect of solar energy and phase change heat storage, the defrosting time is remarkably shortened, indoor temperature fluctuation caused by reverse circulation is reduced, meanwhile, the energy utilization rate is increased, the structure is simple, the cost is controllable, and the efficient defrosting requirement of the air source heat pump in the cold region is met.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY

Phase change latent heat slow-release single-phase immersion liquid cooling intelligent temperature control adjusting method and system

The invention discloses a phase change latent heat slow-release single-phase immersion liquid cooling intelligent temperature control adjusting method and system, and relates to the technical field of electronic equipment heat management. The phase change latent heat slow-release single-phase immersion liquid cooling intelligent temperature control adjusting method comprises the following steps: S1, collecting phase change liquid cooling temperature control data, and preprocessing the phase change liquid cooling temperature control data; s2, evaluating the running state of the server, assigning a thermal response level identifier based on an evaluation result, and constructing a thermal response state data set; s3, evaluating the cooling slow release capability in a temperature control early warning state and a thermal shock state, and generating and executing a self-adaptive cooling adjustment strategy in a grading manner; and S4, after the cooling regulation strategy is executed, the response efficiency of the cooling strategy is evaluated, a cooling strategy optimization instruction is generated, and strategy closed-loop regulation is realized on the basis of monitoring the change trend of an evaluation result in a continuous regulation period. The problem that the chip temperature of an existing liquid cooling system fluctuates abnormally due to cooling capacity response lag in an instantaneous high-load scene is solved.
Owner:TIANJIN TIER TECHNOLOGY CO LTD

Instantaneous high temperature rise and directional regulation pyrolysis device and method

The invention discloses a pyrolysis device and method with instantaneous high temperature rise and directional regulation and control, and the method comprises the following steps: putting a pyrolysis substance into a pyrolysis reaction vessel, introducing inert gas into a superheated steam inlet, and emptying air in the pyrolysis device; superheated steam is introduced into the superheated steam inlet, and a pressure regulating valve is regulated to enable the pressure in the tubular furnace to reach the required pressure; and collecting and treating the pyrolysis product at the pyrolysis product outlet. According to the method, the boiling point of the added water vapor is regulated and controlled by controlling the pressure of a reaction section according to a Clausius-Claelong equation, sufficient heat is provided for pyrolysis substances at a high-gasification latent heat speed of the water vapor, short-time efficient pyrolysis is realized, and production of by-products in the process is reduced compared with slow heating.
Owner:SUN YAT SEN UNIVERSITY SHENZHEN +1

Energy-saving waste incineration flue gas purification device and purification process

The invention discloses an energy-saving type waste incineration flue gas purification device and a purification process. According to the energy-saving type waste incineration flue gas purification device, through combination of the incinerator, the waste heat boiler, the dust removal device, the SCR device, the GGH device and the like, multi-stage purification and energy recovery of flue gas are achieved. And through the arrangement of the dry method device and the SNCR device in the furnace, preliminary deacidification and denitration can be conducted in the incineration process, and the burden of follow-up treatment is reduced. The condensation heat exchanger is introduced, so that sensible heat and latent heat in the flue gas are further utilized, the energy utilization efficiency is improved, and the energy consumption is reduced. According to the invention, the contradiction between heating for denitration and cooling for deacidification is solved, the waste heat of the flue gas is recovered, and heat is transferred to the SCR in a coupling manner; pollutants are efficiently removed, ultralow emission is achieved, latent heat and sensible heat of flue gas are fully utilized, and the energy utilization rate is effectively increased.
Owner:HALO ZHICHUANG ENVIRONMENTAL PROTECTION EQUIPMENT (JIANGSU) CO LTD +1

Cover system for a latent heat storage unit

The present invention relates to a cover for a latent heat storage device, wherein the cover is designed to be arranged on a shell-and-tube plate heat exchanger and to provide a fluidic connection between the tube bundles of the shell-and-tube plate heat exchanger. Several covers can be modularly connected to form a cover system.
Owner:RAWEMA COUNTERTRADE HANDELSGMBH

Contact type thermal resistance dynamic measurement system and measurement method

The invention provides a contact type thermal resistance dynamic measurement system and a measurement method, and belongs to the technical field of thermal resistance measurement. According to the method, accurate characterization of the heat conduction characteristic of a complex interface is achieved through multi-physical field data fusion and a real-time compensation mechanism, firstly, initial reference pressure is set based on contact surface three-dimensional shape extraction and material attributes, and heat-force-flow multi-source data are synchronously collected through a multi-parameter measurement execution module; combining a weighted Kalman filtering algorithm and a phase change-seepage coupling correction model, and dynamically optimizing heat flow density data to eliminate phase change latent heat and micro-flow interference; and for abnormal fluctuation, a combined control strategy of fuzzy PID pressure regulation, high-frequency ultrasonic liquid film stabilization and porous silica gel vibration suppression is adopted, and + / -1% steady-state thermal resistance output is achieved. According to the method, cloud parameter iterative optimization and a fault self-diagnosis mechanism are integrated, and the robustness and reliability of measurement in dynamic high-noise scenes such as lithium battery pole piece expansion and geothermal wellbore unsteady-state heat transfer are remarkably improved.
Owner:ZHEJIANG SCI-TECH UNIV

Defrosting control method for parallel flow evaporator

The invention discloses a control method for defrosting of a parallel flow evaporator, which comprises the following steps of: constructing a multi-dimensional state sensing network, constructing a three-dimensional state sensing matrix by utilizing a distributed temperature sensor array on the surface of an evaporator coil, an air inlet humidity sensor and an inlet and outlet differential pressure type pressure sensor, and acquiring information such as temperature distribution, environment humidity and air pressure difference; through dynamic threshold self-adaptive judgment, based on an environment temperature field, the historical temperature of an evaporator and an icing critical temperature field calculated by a time sequence prediction model, the defrosting triggering condition is judged by combining humidity and an air pressure difference change gradient field; gradient type energy injection defrosting is adopted, in the first-stage defrosting process, the refrigerant flow is adjusted through a proportional electromagnetic valve to conduct directional defrosting, and in the second-stage defrosting process, a compressor is closed, a fin gap shape memory alloy heating network is activated, and latent heat of a phase change material is released to conduct uniform defrosting. And performing multi-physical field cooperative regulation and control, constructing a coupling model, and adjusting the heating power and pulse modulation duty ratio sequence.
Owner:杭州东威制冷设备有限公司

Heat exchange enhanced heat-work coupling elastic-thermal refrigerating device based on topological configuration elastic micro-channel and system of heat exchange enhanced heat-work coupling elastic-thermal refrigerating device

The utility model discloses a heat exchange enhanced heat-work coupling elastic-thermal refrigeration device based on a topological elastic micro-channel and a system thereof, a driving SMA bed is enabled to generate phase change through heat energy, the elastic-thermal effect of an elastic-thermal SMA is induced, the length ratio of the elastic-thermal SMA to the driving SMA is set to be 1: 2, the elastic-thermal SMA bed can realize larger phase change strain, and the elastic-thermal effect of the elastic-thermal SMA bed is enhanced. The latent heat released in the phase change process is larger; the two pieces of symmetrical elastic rubber are arranged in the fluid pipeline of the SMA bed, control over the system flow can be achieved, fluid is made to fully conduct convection heat exchange with the SMA bed, and the heat exchange efficiency of the refrigerating system is improved; transfer of cold energy is achieved through heat transfer fluid, refrigerating devices are used at the same time, alternate dissipation of the cold energy and heat energy of the system is achieved through the two elastic heat SMA beds, periodic cycle work can be stably and efficiently conducted, and the working efficiency of the refrigerating system is improved.
Owner:SHAANXI UNIV OF SCI & TECH +1

Generator set frequency converter heat radiation structure

The invention relates to the technical field of frequency converter heat dissipation, and discloses a generator set frequency converter heat dissipation structure which comprises a cabinet body, a sealing seat arranged at the top of the cabinet body, a detachable sealing cover arranged at the top of the sealing seat, a first convection window arranged at the top of the inner side wall of the cabinet body, and a second convection window arranged at the bottom of the inner side wall of the cabinet body. A detachable water-cooling heat exchanger or an air-cooling heat exchanger is arranged on the outer side wall of the cabinet body, a first convection cavity and a second convection cavity are formed in the positions, facing the outer side wall of the cabinet body, of the water-cooling heat exchanger and the air-cooling heat exchanger respectively, and the first convection window and the second convection window are communicated through the first convection cavity and the second convection cavity. Compared with the prior art, the device has the advantages that the internal heat transfer medium does not need extra power, the heat dissipation efficiency is high, contact with cooling water can be avoided, the air tightness is good, invasion of salt mist or dust is reduced, fluorinated liquid is allowed to serve as the internal heat transfer medium, and the phase change latent heat of the fluorinated liquid can be used for coping with high-temperature transient loads.
Owner:HUANENG ZUOQUAN COAL&POWER CO LTD

Capillary net cage heat exchanger with phase change energy storage function, heat pump unit system and method

The invention discloses a capillary tube net cage heat exchanger with phase change energy storage, a heat pump unit system and a method, solves the problem of limited heat exchange capacity of a heat pump unit in the prior art, and has the beneficial effect of effectively enhancing the heat exchange capacity of the heat pump unit. The capillary tube net cage heat exchanger body is supported by the frame body, the upper side and / or the lower side of the frame body are / is provided with the cover bodies, the cover bodies are internally provided with the cavities, the multiple bag bodies are arranged in the cavities, the core materials are arranged in the bag bodies, and the core materials are made of phase-change materials. And the phase-change material absorbs latent heat to generate state transformation so as to absorb heat energy accumulated at the front end, and / or under the heating working condition, when the temperature of a heat source at the front end of the heat pump unit is reduced to the set temperature, the phase-change material generates state transformation and releases heat, and thermal compensation is carried out on the front end.
Owner:QINGDAO UNIV OF TECH

Heat pump driven renewable drying bed dehumidification dew point evaporative cooling air conditioning system

The utility model discloses a heat pump driven renewable drying bed dehumidification dew point evaporative cooling air conditioning system which comprises a heat pump subsystem, a drying bed dehumidification subsystem, a tubular dew point evaporative cooling subsystem, an adsorption air pipeline subsystem and a regeneration air pipeline subsystem. The drying bed dehumidification subsystem bears the latent heat load of the air conditioning system, and the tubular dew point evaporative cooling subsystem bears the sensible heat load of the air conditioning system. The heat pump is used for regenerating saturated solid drying agent particles in the drying beds, one drying bed is applied to the adsorption process, the other drying bed is applied to the regeneration process, the dehumidification capacity of the drying beds is guaranteed, meanwhile, efficient dehumidification is achieved, the tubular dew point evaporation cooling subsystem is used for cooling, heat pollution is reduced, emission is reduced, and the energy-saving and environment-friendly effects are achieved. And the requirement of people on indoor temperature is met.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Normalizing air cooling system of metal continuous heat treatment furnace

The invention relates to the field of metal heat treatment and industrial automation control, in particular to a normalizing air cooling system of a metal continuous heat treatment furnace, and particularly relates to an ideal field reconstruction module which is used for obtaining steel plate parameters and environmental parameters, introducing a thermodynamic phase change dynamics principle to calculate a phase change latent heat release process and constructing an ideal pure temperature flow field matrix; the fault simulation generation module is used for calling a fault mechanism model to convert an equipment fault into a parameterized interference coefficient matrix, and superposing the parameterized interference coefficient matrix to an ideal matrix to generate a theoretical damaged state matrix; the double-track differential analysis module is used for collecting real-time data to construct an observation matrix, and respectively calculating a first difference between the observation matrix and the ideal matrix and a second difference between the theoretical damaged matrix and the ideal matrix to obtain a real and theoretical difference matrix; the feature coupling judgment module is used for extracting the difference matrix features, calculating the coupling degree, judging that the abnormality belongs to a real fault or environmental noise, and generating an air cooling regulation and control instruction; according to the method, non-linear fluctuation misjudgment is eliminated through phase change latent heat calculation, dual-track differential stripping environment common-mode interference is utilized, and micro equipment abnormity is accurately captured in a noisy environment.
Owner:ZHONGKE DROENV THERMAL ENGINEERING TECH (SUZHOU) CO LTD

Liquid cooling system, liquid cooling system control method and electronic equipment

The invention discloses a liquid cooling system, a liquid cooling system control method and electronic equipment, and relates to the technical field of equipment heat dissipation. According to the invention, the double-phase cooling medium with low conductivity is adopted, so that leakage and conduction of the cooling medium are avoided; the power supply module is contained in the shell, and the power supply module is cooled through sensible heat of the two-phase cooling medium, so that the two-phase cooling medium is converted into a saturated liquid state after absorbing heat; the cold plate assembly is attached to the power consumption module of the electronic equipment to be cooled, heat dissipated by the power consumption module is transferred to the flowing biphase cooling medium in the saturated state, the biphase cooling medium is subjected to phase change, and the power consumption module is cooled through biphase latent heat of vaporization with the highest heat exchange efficiency. Therefore, according to the scheme, the heat dissipation characteristics of all the components and the absorption potential of the two-phase cooling medium are combined, the heat dissipation requirements of the power supply module and the high-power power consumption module are considered, the problem that the heat dissipation capacity of the system cannot meet the heat dissipation requirement is solved, the heat dissipation efficiency is high, and the effect is good.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Flow resistance and heat transfer simulation analysis method of thermal management refrigerant side integrated module

The invention discloses a flow resistance and heat transfer simulation analysis method for a thermal management refrigerant side integrated module, and relates to the technical field of computer simulation. The method mainly comprises the following steps of: dividing a computational domain model into a solid domain, a fluid domain comprising a plurality of single-phase flow channel sub-domains and a flow channel section which is in a gas-liquid two-phase state and exchanges latent heat along with phase change in combination with the need of an actual analysis working condition; performing polynomial fitting on various parameters by fixing the inlet pressure value of each single-phase flow channel sub-domain; loading the fitted physical property function to the corresponding runner sub-domain, and setting a constant material attribute for the solid domain runner plate; a conjugate heat transfer model is started on an interface of a fluid domain and a solid domain, and interface heat flux density conservation and temperature continuity simulation is carried out; setting boundary conditions; and executing conjugate heat transfer simulation calculation until convergence calculation is completed. According to the method, the simulation precision is improved through fusion of three core technologies of dynamic change physical property fitting, solid-liquid conjugate heat transfer coupling and two-phase flow latent heat equivalent modeling.
Owner:NINGBO TUOPU GROUP CO LTD

Three-dimensional incongruous fractal fin latent heat storage device and fin optimization method

The invention discloses a three-dimensional incongruous fractal fin latent heat storage device which comprises an outer pipe shell and a fluid inner pipe, the fluid inner pipe is arranged in the outer pipe shell in a penetrating mode, the space between the outer pipe shell and the fluid inner pipe is filled with phase change heat storage materials, and a plurality of three-dimensional incongruous fractal fins are arranged on the outer side wall of the fluid inner pipe. Each three-dimensional incongruous fractal fin comprises a linear first-stage main fin, two second-stage fractal fins and four third-stage fractal fins, the first end of each first-stage main fin is connected to the outer side wall of the fluid inner pipe, and the second-stage fractal fins are distributed in a V shape on the radial section of the fluid inner pipe and jointly connected to the second end of the first-stage main fin; every two third-stage fractal fins are distributed in a V shape on the axial section of the fluid inner pipe and jointly connected to the ends, away from the first-stage main fins, of the second-stage fractal fins. The invention further discloses a fin optimization method of the heat exchanger. The melting time can be shortened while the heat storage amount can be guaranteed, and efficient heat exchange of the phase change latent heat storage device is achieved.
Owner:JIANGSU UNIV OF SCI & TECH