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1368results about "Heating and refrigeration combinations" patented technology
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Cold and heat supply unit and process capable of deeply utilizing heat source
ActiveCN120702129AMechanical apparatusHeating and refrigeration combinationsProcess engineeringCooling energy
The invention discloses a cold and heat supply unit and process capable of deeply utilizing a heat source in the technical field of absorption refrigeration. The cold and heat supply unit comprises a refrigerating unit, a heating unit, a heat source flash tank and a high-pressure absorber. The refrigerating unit utilizes an external heat source to produce cold energy, the heating unit utilizes the heat source used by the refrigerating unit to produce cold energy so as to cool circulating water of the refrigerating unit, and the heat source flash tank utilizes the heat source discharged by the high-pressure absorber to heat; the absorption refrigerating unit is optimally designed, so that the absorption refrigerating unit can deeply utilize a heat source and supply cold and high-level heat energy at the same time, the problem that the heat source utilization rate of the unit is not high is solved, and the requirement for high-temperature heat energy in the production process is met; and low-grade waste heat is converted into cold energy and high-level heat energy, transition and upgrading of energy quality can be achieved, the unit has the cold and heat combined supply function, and the application scene is greatly expanded.
Owner:ANHUI METAENERGY TECHNOLOGIES CO LTD
Refrigeration and heat supply management and control system of intelligent dynamic balance valve
The invention discloses a refrigerating and heating management and control system of an intelligent dynamic balance valve, and relates to the field of balance valves, the refrigerating and heating management and control system comprises a dynamic differential pressure balance valve, a sensing acquisition module, a node control module, a centralized management module and a planning module, the sensing acquisition module is installed at the water inlet end of the dynamic differential pressure balance valve, and the node control module is installed at the water outlet end of the dynamic differential pressure balance valve; the node control module is installed at the top end of the dynamic differential pressure balance valve, the centralized management module is in interactive connection with the node control module and the planning module through a wireless network, and the dynamic differential pressure balance valve is used for being deployed to a water return pipeline and automatically executing valve opening adjustment according to flow change, pressure change or a control instruction; according to the method, more accurate and reliable temperature control is achieved, an intelligent scheduling algorithm is adopted, the system can balance three targets of energy consumption optimization, node temperature difference balance and risk control at the same time, a flow regulation and control scheme meeting the Pareto optimal condition is generated, and it is ensured that the overall operation efficiency is improved.
Owner:ZHEJIANG HUIBO VALVE TECH CO LTD
Variable frequency heat recovery system and heat recovery unit
The variable-frequency heat recovery system comprises a compressor unit, three heat exchangers, a variable-frequency driving module and a liquid storage device, the compressor unit can be connected with any two heat exchangers to form a refrigerant circulation loop, and an inlet pipe of the liquid storage device is connected to the outlet side of a condenser of the refrigerant circulation loop; the variable frequency driving module is provided with a heat dissipation pipeline, and the heat dissipation pipeline is connected with an inlet pipe of the liquid storage device in series so that refrigerants conveyed to the liquid storage device can pass through the heat dissipation pipeline. According to the heat recovery system, the pipeline connecting structure in the system is designed, the refrigerant before throttling is adopted to cool the variable frequency driving module, the cooling effect of the variable frequency driving module in different modes is ensured, and the reliability of the heat recovery system is improved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Twist clamping refrigerating and heating device with cold and hot end separation and work recovery functions
ActiveCN119665480AImplement the load operationEnable recyclingHeating and refrigeration combinationsGear wheelRefrigerant
The invention discloses a twisting clamping refrigerating and heating device with cold and hot end separation and work recovery functions. The twisting clamping refrigerating and heating device comprises a stator module, a rotor module and a heat exchange module. The stator module comprises an inner gear and an outer gear, and teeth are arranged on partial edges of the inner gear and the outer gear. The rotor module comprises a torsion clamping refrigerant and a loading gear; the heat exchange module comprises an inner cylinder and an outer cylinder. And the loading gear revolves to drive the torsion clamping refrigerant to change the heat exchange position, and rotates to drive the torsion clamping refrigerant to be loaded and unloaded. When the loading gear is meshed with the inner gear, the loading gear rotates in the forward direction, and the torsion clamping refrigerant generates heat due to loading; when the loading gear is meshed with the outer gear, the loading gear rotates reversely, and the torsion clamping refrigerant absorbs heat due to unloading. According to the device, a heat exchange area is effectively separated, the problem of mutual interference of cold and heat is avoided, and the heat exchange efficiency and power are greatly improved; the resilience force generated when the torsion clamping refrigerant is unloaded is transmitted to the loading area, auxiliary power is provided for the loading process, recycling of work is achieved, and the energy utilization efficiency is improved.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
CCHP (combined cooling heating and power) transcritical carbon dioxide energy storage power generation system
PendingCN120777081ASteam engine plantsHeating and refrigeration combinationsPower gridProcess engineering
The invention discloses a transcritical carbon dioxide energy storage power generation system for combined supply of cooling, heating and power, and belongs to the technical field of energy storage. Low-pressure carbon dioxide is compressed to be in a supercritical high-pressure state through the structure that the three-stage compressor and the three-stage intercooler are matched; the maximum pressure increase is obtained by using the minimum entropy increase; complete release of high-pressure carbon dioxide is realized through cooperation of a three-stage heat regenerator and a three-stage turbo expander; the condition that the equipment conformity is too high due to single-stage expansion is avoided; the surplus electric energy is stored in the valley period of the electricity price, and the high-voltage carbon dioxide is released for power generation in the peak period of the electricity price, so that economic benefits are obtained through the electricity price difference, and rapid peak regulation capacity is provided for a power grid; the high-pressure carbon dioxide storage tank adjusts the capacity of an air bag through pressure-resistant oil, so that the storage requirement of constant-pressure high-pressure carbon dioxide is met, the material cost of the high-pressure carbon dioxide storage tank is reduced, and the manufacturing cost of a power generation system is reduced; the multi-stage compression efficiency of the low-pressure carbon dioxide storage bag is improved by adopting a double-layer air bag structure.
Owner:CHINA JK INST OF ENG INVESTIGATION & DESIGN +2
Constant-heating defrosting system of heat recovery air conditioner and defrosting control method and device
ActiveCN120351586AEnergy recovery in ventilation and heatingMechanical apparatusSolenoid valveThermal water
The invention provides a constant-heating defrosting system of a heat recovery air conditioner and a defrosting control method and device. According to the system, a compressor, a first electromagnetic valve, a water tank, a first expansion valve, a first one-way valve, a second electromagnetic valve, an outdoor heat exchanger and a four-way valve are connected to form a first heating loop; a compressor, a first electromagnetic valve, a water tank, a first expansion valve, a first one-way valve, a third electromagnetic valve, an energy storage water tank, a fourth electromagnetic valve and a four-way valve are connected to form a first defrosting loop. A compressor, a fifth electromagnetic valve, a second one-way valve, an outdoor heat exchanger and a four-way valve are connected to form a second defrosting loop; and the first heating loop, the first defrosting loop and the second defrosting loop form a single heating water defrosting loop. The problem that in the prior art, in the defrosting process, the comfort experience of a user is affected due to the fact that an air conditioner does not conduct heating is solved.
Owner:ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
Refrigerating and heating device
PendingCN119665476AExtended service lifeprevent bucklingHeat storage plantsHeating and refrigeration combinationsCrazingMechanical engineering
The invention provides a refrigerating and heating device which comprises a driver, a solid elastic clamping unit and a pipeline, the solid elastic clamping unit comprises a sleeve and a plurality of solid elastic clamping material plates stacked in the sleeve, each solid elastic clamping material plate comprises a through hole, and the through holes are stacked to form a flow cavity; the driver loads or unloads the multiple solid elastic clamping material plates to generate phase change or reverse phase change so as to generate heat or cold, the pipeline is communicated with the flow cavity, and media in the pipeline are subjected to heat exchange through the flow cavity so that the heat or the cold can be conveyed to the heating end or the refrigerating end. The solid elastic clamping material is arranged to be in a plate shape, in the loading and unloading process, even if a certain solid elastic clamping material plate cracks, the cracks cannot spread to other solid elastic clamping material plates, after the plate-shaped solid elastic clamping material is stacked, buckling deformation of the material can be avoided in the loading process, and the service life of the solid elastic clamping material is greatly prolonged.
Owner:THE HONG KONG UNIV OF SCI & TECH
Heat pump arrangement with indirect battery heating for battery-operated motor vehicles and method of operating a heat pump arrangement
A heat pump arrangement and a method of operating a heat pump arrangement. The heat pump arrangement has a refrigerant circuit and a coolant circuit, wherein the coolant circuit is configured for indirect battery heating. The refrigerant circuit includes a compressor, a heating condenser, a 3 / 2-way expansion valve, an external heat exchanger, at least one evaporator with an associated expansion element as well as a 3 / 2-way expansion valve arranged in parallel to the evaporator, and a battery chiller. The coolant circuit includes a coolant cooler and a battery heat exchanger with an associated coolant pump and at least one drive train cooler with an associated coolant pump arranged in parallel to the battery heat exchanger.
Owner:HANON SYST CO LTD
Loop structure of cold heat flows
InactiveCN1916533AImprove efficiencySimple configurationFluid circulation arrangementHeating and refrigeration combinationsHeat flowWorking fluid
A flow direction control device of heating stream and cooling stream is prepared as connecting said device separately to the first heat exchange unit, the second heat exchange unit, air conditioner and compressor for controlling heated working fluid from the first heat exchange unit to be sent to air conditioner for being used as the first heat media or to be sent to the second heat exchanger for being condensed there then to send it to air conditioner for being used as the second cooling media in order to make air conditioner output hot and cold alternatively, enabling to set heating course on the first heat exchange unit for providing the third heat media out.
Owner:KAORI HEAT TREATMENT COMPANY
Wind-solar complementary zero-carbon seawater desalination device
The invention provides a wind-solar complementary zero-carbon seawater desalination device. The device comprises a solar module, a wind turbine generator, an energy storage electric box, a heat storage water tank, a refrigerating circuit and a seawater desalination tank, the solar assembly is used for providing heat energy for the heat storage water tank. The solar assembly and the wind turbine generator set are used for providing electric energy for the energy storage electric box. The refrigerating circuit is used for freezing seawater in the seawater desalination box by utilizing electric energy in the energy storage electric box; the heat storage water tank is connected with the seawater desalination tank through a heat supply pipeline, and the heat supply pipeline conveys heat energy in the heat storage water tank to the seawater desalination tank to melt frozen seawater in the seawater desalination tank; cold energy and heat energy are obtained by converting solar energy and wind energy, and the long-term cost advantage is achieved; and heat energy in the energy storage water tank and cold energy in the refrigerating circuit can be quickly started and stably run, so that the operation flexibility is improved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD
Carnot cell cold, heat, electricity and fresh water combined supply system based on waste heat utilization
The invention discloses a carnot cell cold, heat, electricity and fresh water combined supply system based on waste heat utilization. The system comprises a dual-pressure condensation heat pump cycle device, a heat storage cycle device, an organic Rankine cycle device, a lithium bromide absorption type refrigeration cycle device, a multi-stage flash evaporation seawater desalination device and a photovoltaic power generation device. Wherein the dual-pressure condensation heat pump circulating device is respectively connected with the heat storage circulating device, the lithium bromide absorption type refrigeration circulating device, the photovoltaic power generation device and the multi-stage flash evaporation seawater desalting device; the heat storage circulating device is also connected with the organic Rankine cycle device; the lithium bromide absorption type refrigeration circulating device is also connected with the multi-stage flash evaporation seawater desalting device; and the dual-pressure condensation heat pump circulating device is used for increasing the temperature of the waste heat so as to meet the operation requirements of the lithium bromide absorption type refrigeration circulating device or the multi-stage flash evaporation seawater desalting device. A large number of low-grade waste heat resources generated in industrial production are effectively utilized, and supply and demand matching of electric energy is adjusted.
Owner:FUZHOU UNIV
Air conditioner control method and device, multi-split air conditioner and storage medium
ActiveCN117109144BEnergy recovery in ventilation and heatingMechanical apparatusProcess engineeringRefrigeration
The present application relates to the technical field of air conditioners, and particularly relates to an air conditioner control method and device, a multi-connected air conditioner and a storage medium, the present application determines the target heat recovery mode of the multi-connected air conditioner by judging the water tank temperature of the hot water tank, the heating energy demand and the total energy demand of each air conditioner indoor unit obtained when the multi-connected air conditioner simultaneously exists refrigeration and heating water demand, and then adjusts the communication state of the reversing device and the throttling element according to the target heat recovery mode, so as to achieve the purpose of simultaneously operating refrigeration and heating water by one heat pump system, and heat the water tank by the waste heat of air conditioner refrigeration, thereby avoiding the technical problem that the heating and heating water in the prior art multi-connected air conditioner are not simultaneously performed, and improving the use experience of the user.
Owner:GD MIDEA AIR CONDITIONING EQUIP CO LTD +1
Mute control method and device for multi-split equipment, multi-split equipment and storage medium
PendingCN120332959AMechanical apparatusSpace heating and ventilation safety systemsThermodynamicsProcess engineering
The invention discloses a muting control method and device for multi-split equipment, the multi-split equipment and a storage medium, and relates to the technical field of multi-split equipment control. In response to a muting control instruction, the current operation mode of the multi-split equipment, water temperature data of a water tank of a heat recovery unit and the current outdoor environment temperature are obtained; determining a target temperature interval where the current outdoor environment temperature is located based on the current operation mode and the current outdoor environment temperature; and at least one of a heat recovery unit water tank, an outdoor unit and a compressor is controlled according to at least one of the water temperature data, the current operation mode and the target temperature interval, so that mute control over the multi-split equipment is achieved. By controlling at least one of the water tank of the heat recovery unit, the outdoor unit, the fan rotating speed of the outdoor unit and the compressor, the problem of neighborhood complaints caused by noise of the outdoor unit of the heat recovery air conditioner is effectively solved, and the user experience and the refrigerating and heating effect are improved on the premise that it is guaranteed that the noise of the outdoor unit does not disturb residents.
Owner:GD MIDEA AIR CONDITIONING EQUIP CO LTD +1
Heat pump device and air conditioning system
ActiveCN223307114UMechanical apparatusSpace heating and ventilation safety systemsInlet valveAir conditioning
The utility model discloses a heat pump device and an air conditioning system, and relates to the technical field of heat exchange. The air conditioner comprises an outdoor assembly, an inner machine assembly, a liquid inlet valve group and a liquid outlet valve group. The liquid inlet of each outdoor assembly is communicated with the first liquid outlet of the inner unit assembly, and the liquid outlet of each outdoor assembly is communicated with the first liquid inlet of the inner unit assembly. And the liquid inlet valve group is communicated with the second liquid outlet of the inner machine assembly and the liquid inlet of each outdoor assembly. And the liquid outlet valve group is communicated with the second liquid inlet of the inner machine assembly and the liquid outlet of each outdoor assembly. Therefore, the conduction state of the liquid inlet valve set and the liquid outlet valve set can be adjusted through the refrigerating or heating mode of the indoor unit, and the function of independent refrigerating, independent heating or simultaneous refrigerating and heating in multiple areas can be achieved on the basis that a heat recovery module does not need to be additionally arranged. Therefore, the structural complexity of the heat pump device is reduced, and the product adaptability of the heat pump device is improved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Variable frequency heat pump control method based on AI and control system thereof
PendingCN121855122AHeat pumpsEfficient regulation technologiesDynamical optimizationLoad forecasting
The invention discloses an AI-based variable frequency heat pump control method and a control system thereof. The method comprises the following steps: S1, data acquisition; s2, data preprocessing; heat demand load prediction and operation parameter dynamic optimization are achieved through the AI model, the response speed of the environment temperature and heat demand changes is effectively increased, the parameter matching precision is effectively improved, the problems that traditional control response is lagged, and adaptability is poor are effectively solved, and the control accuracy is improved. The energy consumption of the system can be reduced under complex working conditions such as extreme temperature and sudden load change through a reinforcement learning algorithm, and the self-adaptive energy-saving capability of a multi-element scene is remarkably improved; meanwhile, based on a fault diagnosis scheme of a CNN and Transform fusion model, the fault diagnosis accuracy is effectively improved, the false alarm rate is effectively reduced, the defects of traditional threshold judgment are overcome, and in addition, the method can adapt to working condition changes and equipment aging characteristics for a long time in cooperation with model self-learning and parameter online updating functions.
Owner:QINGDAO BANKE FREQUENCY CONVERSION TECH CO LTD
Energy system with nuclear energy as base load and control method
The invention relates to the technical field of nuclear energy comprehensive utilization, and discloses an energy system with nuclear energy as base load and a control method.The system comprises a nuclear power secondary loop system, a renewable energy system, an energy storage system, a steam supply system, a seawater desalination system, a hydrogen production system, a heating system and a refrigeration system; the heat of the reactor core enters the steam generator to generate main steam; the photovoltaic module and the wind turbine generator set carry out renewable energy power generation; a storage battery is used for storing renewable energy electric power, and a molten salt heat storage system is used for storing heat energy; the steam supply heat exchanger is used for heating fresh water produced by the seawater desalination system to obtain superheated steam; the low-temperature multi-effect evaporation system and the reverse osmosis membrane method seawater desalination system generate fresh water; the electrolytic bath generates hydrogen and oxygen; the heating system and the refrigerating system are used for refrigerating in summer and heating in winter, and nuclear energy, wind energy, solar energy and the like are coupled and utilized in a stepped mode.
Owner:CHINA NUCLEAR POWER ENGINEERING CO LTD
Heat exchange enhancement and heat storage system using heat pipe
InactiveCN119778907AHeat storage plantsHeating and refrigeration combinationsLiquid stateThermal energy storage system
The present invention discloses a heat exchange and enhanced heat storage system using a heat pipe, which relates to the field of variable heat storage technology, and includes an evaporation module, which is used for a liquid working medium to absorb heat and evaporate into a gaseous state to achieve heat transfer; a cooling module, which is used to achieve condensation of the gaseous working medium to achieve heat release; a conversion module, which is used to promote the circulation of the working medium in the system to achieve heat absorption and release; a monitoring module, which automatically adjusts the air flow and working medium circulation according to temperature changes; a liquid storage module: used to store liquid refrigerant to achieve refrigeration system cyclic operation; a phase change heat transfer module: used to store phase change materials. The present invention allows the system to operate flexibly under different heat load conditions and adapt to different cooling and heating requirements through the coordination between the cooling module, the evaporator and the conversion module, thereby improving the heat conduction efficiency and ensuring the overall energy storage and release efficiency.
Owner:MANZHOULI DALAIHU THERMAL POWER CO LTD
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
ActiveCN223165751UHeat storage plantsHeating and refrigeration combinationsConvection heatHeat transfer fluid
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
Oil-free centrifugal cooling and heating simultaneous high-temperature heat pump unit, system and cooling and heating simultaneous method
The invention relates to the field of heat pumps, in particular to an oil-free centrifugal cooling and heating simultaneous high-temperature heat pump unit, an oil-free centrifugal cooling and heating simultaneous high-temperature heat pump system and a high-temperature heat pump cooling and heating simultaneous method. The oil-free centrifugal high-temperature heat pump unit capable of simultaneously heating and cooling comprises an evaporator; the low-pressure stage oil-free centrifugal compressor is communicated with the evaporator through an air suction pipeline; the high-pressure stage oil-free centrifugal compressor is communicated with the low-pressure stage oil-free centrifugal compressor through a compressor connecting pipeline; the economizer is communicated with the compressor connecting pipeline through an air supply pipeline; the economizer is communicated with the evaporator through a low-pressure throttling pipeline; the condenser is communicated with the economizer through a high-pressure throttling pipeline; the condenser is communicated with the evaporator through a liquid bypass pipeline; the condenser is provided with a hot water pipeline, and the outlet end of the hot water pipeline is provided with a hot water outlet valve.
Owner:GUANGDONG ANJIA AIR CONDITIONING REFRIGERATION CO LTD
Control method of air conditioner heat recovery system, air conditioner heat recovery system and computer readable storage medium
ActiveCN120351661AEnergy recovery in ventilation and heatingMechanical apparatusThermodynamicsMode control
The invention provides a control method of an air conditioner heat recovery system, the air conditioner heat recovery system and a computer readable storage medium. The method comprises the steps that the water temperature of a water heater and the indoor environment temperature at the current moment are obtained; according to the water temperature of the water heater and the indoor environment temperature, the operation mode of the air conditioner heat recovery system is determined, and the first operation mode is a mode that the air conditioner is in a refrigeration mode and does not heat the water heater; the second operation mode is a mode in which the air conditioner is in a refrigeration mode and heat released by a refrigerant of the air conditioner is completely used for heating the water heater, and the third operation mode is a mode in which the air conditioner is in the refrigeration mode and part of heat released by the refrigerant of the air conditioner is used for heating the water heater; and controlling the air conditioner heat recovery system to operate in the operation mode. According to the method, through switching of multiple operation modes of the system, condensation heat can be recovered to reserve domestic hot water in advance while intelligent regulation and control of the indoor temperature are achieved, and effective utilization of heat energy of the whole house is achieved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Centralized carbon dioxide energy storage system in central urban area and method thereof
ActiveCN120487308APositive displacement pump componentsSteam engine plantsProcess engineeringUrban area
The invention belongs to the technical field of energy storage, and relates to a central urban area centralized carbon dioxide energy storage system and a method thereof.The central urban area centralized carbon dioxide energy storage system comprises a storage module and an energy storage heat supply module, and the energy storage heat supply module comprises a heat storage unit and a compressor, a cooler and a condenser which are sequentially connected; and the energy-releasing power supply and cold supply module comprises a cold energy storage unit, and an evaporator, a heater, a turbine and a reheater which are connected in sequence. The storage module with the largest occupied area can be arranged at the position far away from a community, the energy storage heat supply module and the energy release power supply and cold supply module are arranged on the user side, centralized storage of working media and distributed supply of energy are achieved through long-distance conveying of carbon dioxide, the system can cover all energy consumption units in a large range, and the energy utilization efficiency is improved. And power supply, heat supply and cold supply are close to the user side, so that the loss in the energy transmission process is greatly reduced, the energy waste during power supply, heat supply and cold supply is reduced, and the comprehensive energy utilization efficiency of the system is also remarkably improved.
Owner:HERUN NEW ENERGY (SHAANXI) TECHNOLOGY CO LTD
Vehicle thermal management system and vehicle with same
The invention discloses a vehicle thermal management system and a vehicle with the same. The vehicle thermal management system comprises a compressor; the air conditioner subsystem comprises an in-vehicle heat exchanger and a first refrigerant flow path, and the first refrigerant flow path is connected with the compressor and the in-vehicle heat exchanger; and the refrigerator subsystem comprises a first heat exchanger used for adjusting the temperature of the refrigerator, and a heat exchange medium in the refrigerator subsystem is suitable for heat exchange with a refrigerant in the first refrigerant flow path. According to the vehicle heat management system, the refrigerant in the compressor and the air conditioner subsystem does not directly participate in refrigeration or heating of the first heat exchanger, heat exchange is conducted between the refrigerant and the heat exchange medium in the refrigerator subsystem, refrigeration or heating of the first heat exchanger is achieved through the heat exchange medium, then refrigeration or heating of a refrigerator is achieved, and the heat exchange efficiency of the refrigerator is improved. In this way, when the refrigerator subsystem and the air conditioner subsystem share the compressor, the refrigerant can be used for refrigerating or heating other systems.
Owner:BYD CO LTD
Direct cooling heat pump air conditioning system for energy storage temperature control system
ActiveCN119713643AMechanical apparatusCompression machines with reversible cycleTemperature controlFour-way valve
The invention provides a direct cooling heat pump air conditioning system for an energy storage temperature control system, which comprises a compressor, a four-way valve, a first branch, a second branch and a liquid cooling device, the first branch is provided with a first end and a second end, the second branch is provided with a port A and a port B, and the second end and the port B are respectively connected with two ends of the liquid cooling device; the four-way valve is provided with a first valve port, a second valve port, a third valve port and a fourth valve port, an exhaust port of the compressor is communicated with the first valve port, an air suction port of the compressor is communicated with the third valve port, a first end is communicated with the second valve port, and a port A is communicated with the fourth valve port; a first condensation section and a first heat exchange section are connected to the first branch in series, and the first heat exchange section is arranged between the first condensation section and the second end. A second condensation section and a second heat exchange section are connected to the second branch in series, and the second heat exchange section is arranged between the second condensation section and the port B. The technical problem that in the prior art, a liquid cooling system needs multiple heat exchange, cold energy cannot directly act on a heating battery cell, and the heat exchange performance is low is solved.
Owner:NINGBO AUX ELECTRIC CO LTD
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
Heat storage system for hydrogen supply and storage system
PendingCN120800045AFuel cell heat exchangeBatteries circuit arrangementsThermal energy storage systemHydrogen storage system
The invention relates to the field of hydrogen energy storage and supply, and discloses a heat storage system for a hydrogen supply and storage system, comprising: a storage and supply integrated water tank for storing waste heat generated by a fuel cell generator set; the waste heat recovery side water pump is used for conveying waste heat of the fuel cell generator set to the storage and supply integrated water tank; the user water supply side water pump is used for extracting heat from the storage and supply integrated water tank and supplying the heat to rear-end users; the pipeline and valve group is used for connecting all the parts and adjusting the flowing direction and flow of heat; the gradient utilization module is used for graded utilization of waste heat generated in the hydrogen supply and storage process; and the collaborative conversion module is used for carrying out collaborative conversion and storage among the energy sources. An energy demand is predicted by applying a deep hydrogen energy storage and supply Q hydrogen energy storage and supply network algorithm, an optimization model is constructed in combination with equipment operation constraints, equipment is accurately regulated and controlled, and the energy demands are respectively used for power generation, refrigeration, heating and industrial production according to waste heat temperature differences, so that flexible distribution of waste heat is realized.
Owner:GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
Method and device for controlling oil temperature of compressor of air conditioner
The invention discloses an oil temperature control method and device for a compressor of an air conditioner. The method comprises the steps that after a compressor of the air conditioner operates for a preset duration, operation data of the compressor are obtained, and the operation data comprise the bottom temperature value of the compressor and the pressure value of the compressor; heating operation of the air conditioner is determined; the superheat degree of the bottom of the compressor is determined according to the bottom temperature value and the saturation temperature, and the saturation temperature is the temperature of a refrigerant of the compressor under the pressure value; determining a heating mode of a water tank of the air conditioner to a compressor according to the superheat degree and the heating operation mode; and the compressor is heated according to the heating mode so as to control the oil temperature of the compressor. The technical problems that in the prior art, a compressor is prone to poor heat exchange under the low-temperature condition, the situation of incomplete evaporation of a refrigerant possibly occurs, the low-temperature liquid refrigerant returns to the compressor, the compressor is started with liquid, liquid impact occurs, and the reliability of the whole machine is affected are solved.
Owner:ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
Cold, heat and electricity combined supply system device for hot dry rock
The invention discloses a cold, heat and electricity combined supply system device for hot dry rock. The system comprises a middle-deep layer geothermal heat exchanger, a geothermal source pressure pump, a steam turbine evaporator, an ORC and Kalina steam turbine power generation device, a hot water type absorption unit, a steam turbine condenser, a steam turbine liquid supply pump, a warming heat exchanger, a backheating heat exchanger, a living water heat exchanger, a heat supply pump, a cold circulating pump, a plurality of electric control reversing valves, a user side and a power distribution control device. The system extracts hot dry rock heat energy through the geothermal heat exchanger to drive the power generation device to generate power, and cold or heat is output through the absorption type unit. The warming heat exchanger and the backheating heat exchanger optimize a working medium circulation path, the electric control reversing valve dynamically switches a refrigeration mode, a heating mode and a power generation mode, and the domestic water heat exchanger independently supplies domestic hot water. Efficient combined supply of cold, heat and electricity of geothermal energy is achieved, the problem that the working medium circulation efficiency is low during multi-mode switching is solved, the energy utilization rate is remarkably increased, the operation cost is reduced, and energy conservation and environment protection are achieved.
Owner:王宝华
Oil pump high and low temperature durability test system
The invention relates to a high and low temperature durability test system for an oil pump. The test system comprises a mold temperature controller assembly, an environment box assembly, an oil pump working cycle assembly, an auxiliary oil tank assembly and a control system. The mold temperature controller assembly can provide medium engine oil with different temperatures, the environmental box assembly can create required high and low temperature environments, the oil pump working circulation assembly realizes flow and pressure adjustment and circulation of oil pumps with different calibers through two independent loops, and the auxiliary oil tank assembly facilitates rapid replacement of test engine oil. And the control system realizes automatic control and parameter monitoring of the whole process. The device can complete various tests such as high-temperature durability, low-temperature durability and high-low temperature cycle durability, has the advantages of low cost, rich test conditions, flexibility in operation, high safety, high adaptability and the like, and effectively improves the research and development test efficiency of the oil pump.
Owner:CHANGSHA JIANKE ELECTRONICS CO LTD
Control method of refrigerating and heating equipment
PendingCN119755830ARefrigeration safety arrangementHeating and refrigeration combinationsProcess engineeringRefrigeration
Owner:SHENZHEN ENTROPLUS INNOVATION TECHNOLOGY CO LTD
Heat recovery and reuse system, method and electronic equipment
The present invention relates to the field of energy recovery technology, and specifically discloses a heat recovery and reuse system, method and electronic equipment. The heat recovery and reuse system includes a frequency conversion host, a heat recovery heat exchanger, a cooling water module, a hot water storage tank, a hot water circulation pump and a hot water control module, wherein: the frequency conversion host is used for cooling and heating, the heat recovery heat exchanger is installed between the condenser outlet of the frequency conversion host and the cooling water module, and is used to recover condensation heat; the cooling water module includes a cooling water pump, a cooling tower and a pipeline, and is used to cool the heat generated by the frequency conversion host during the refrigeration process. The heat recovery and reuse system of the embodiment of the present invention can convert the heat energy released by the air-conditioning frequency conversion host during the condensation process into hot water, realize the secondary utilization of energy, and reduce energy consumption and carbon emissions: not only that, the recovered hot water can be used for a variety of purposes, such as heating, hot water supply, etc., reducing the energy cost of the enterprise.
Owner:COSCO SHIPPING (QIDONG) OFFSHORE CO LTD +1