1042results about "Heating and refrigeration combinations" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention relates to the technical field of lithium batteries, in particular to a lithium battery waste heat utilization system. According to the invention, through the ingenious series connection and heat exchange design of the cooling liquid loop, the low-grade waste heat of the lithium battery is recovered and utilized to the maximum extent. According to the system, the cooling liquid absorbing the heat of the battery is sequentially used for driving the data center to cool, pre-cooling return air of the refrigerating system and finally cooling with a low-temperature secondary refrigerant of the ice storage system. According to the process, gradient utilization of heat is achieved, cooling energy consumption of the data center and the refrigerating system is remarkably reduced, the ice making efficiency of the ice storage system is improved, the comprehensive utilization rate of energy is greatly improved on the whole, and the purposes of saving energy and reducing consumption are achieved.

The invention discloses a multi-split system, a power control method and a controller. The multi-split system comprises an air conditioner indoor unit, a water tank and an outdoor unit. The signal interface is used for receiving a power instruction sent by the power configuration system; the controller is configured to respond to the received first power instruction and determine the limited power corresponding to the first power instruction; and the running frequency of a compressor is adjusted according to the limiting power and the real-time power of the multi-split air conditioning system, and under the condition that it is detected that the main indoor unit has the energy requirement, the limiting power is distributed according to the energy requirement of the main indoor unit, and the auxiliary indoor unit is controlled to be switched into the standby state or kept in the standby state or the shutdown state. The multi-split system adjusts the operation frequency of the compressor under the limited power corresponding to the power instruction, and automatically adjusts the operation states of the compressors according to the priorities of the air conditioner indoor units under the limited power, so that the multi-split system does not exceed the limited power and can meet the use requirements of users as much as possible under the limited power.

The invention discloses a variable frequency heat pump unit and a heat dissipation control method.The variable frequency heat pump unit comprises a refrigerant circulation loop and a variable frequency driving module, the refrigerant circulation loop is formed by connecting a compressor, a heat exchanger combination, a liquid storage device and a gas-liquid separator, and the variable frequency driving module is provided with a heat dissipation pipeline; the outlet end of the heat dissipation pipeline is connected to the air suction side of the compressor, the inlet end of the heat dissipation pipeline communicates with a liquid storage cavity of the liquid storage device through a first branch and a second branch, the first branch is provided with a cooling pipe section located in the gas-liquid separator, a first throttling device is installed on the outlet side of the cooling pipe section, and the second branch is located outside the gas-liquid separator. The second branch is provided with a second throttling device; the first throttling device and the second throttling device are adjustable in opening degree and work cooperatively. The liquid refrigerant in the liquid storage device is led out to dissipate heat of the variable frequency driving module, the influence of heat dissipation on main path circulation is reduced, and the heat dissipation efficiency and the unit performance can be both considered.

The utility model discloses a heat pump system which comprises at least two indoor units, an outdoor main machine, an air pipe and a liquid pipe. The indoor unit comprises a first refrigerant port and a second refrigerant port communicating with the first refrigerant port. The outdoor main machine comprises a first refrigerant pipeline, a second refrigerant pipeline, a refrigerant outlet pipeline and a refrigerant inlet pipeline. The first refrigerant pipeline is connected with the main connector end of the air pipe. In each indoor unit, the first refrigerant port is connected with the corresponding branch connector end in the air pipe, and the second refrigerant port is connected with the corresponding branch connector end in the liquid pipe. And the second refrigerant pipeline is connected with the main interface end of the liquid pipe. The refrigerant outlet pipeline and the refrigerant inlet pipeline are used for being externally connected with a domestic hot water module, and hot water is prepared through heat exchange between a refrigerant and water. The liquid pipe and the air pipe are further used for being externally connected with a hydraulic module, and heat exchange between the refrigerant and water is achieved. The weight of the outdoor main machine is reduced, the main machine is integrated to a system, and a user can select a domestic hot water module and a hydraulic module according to requirements.

The water source heat pump hot water air conditioning unit comprises a compressor, a three-way electromagnetic valve, a four-way reversing valve, an air conditioning heat exchanger, a water source heat exchanger, a hot water heat exchanger and a gas-liquid separator. An exhaust pipe of the compressor is connected with an input port of the three-way electromagnetic valve, a first output port of the three-way electromagnetic valve is connected with a first valve port of the four-way reversing valve, and a second valve port of the four-way reversing valve is connected with a first port of the water source heat exchanger. A third valve port of the four-way reversing valve is connected with an inlet of the gas-liquid separator, and an outlet of the gas-liquid separator is connected with an air suction pipe of the compressor; a fourth valve port of the four-way reversing valve is connected with a first port of the air conditioner heat exchanger; a second filter, a second expansion valve and a third filter are arranged on a pipeline for connecting a second port of the water source heat exchanger and a second port of the air conditioner heat exchanger; a second output port of the three-way electromagnetic valve is connected with a first port of the hot water heat exchanger. A second port of the hot water heat exchanger is connected with a second port of the water source heat exchanger through a first filter and a first expansion valve.

The invention relates to the technical field of household appliances, in particular to a multi-split heat recovery multi-split air conditioning system which comprises an air conditioning system, a hot water system, an adjusting unit and a controller, the air conditioning system, the hot water system and the adjusting unit are connected with one another, and the controller responds to a control instruction and controls the multi-split heat recovery multi-split air conditioning system to operate in different working modes. The working modes of the multi-split heat recovery multi-split air conditioning system can be enriched, and the intelligence is improved; meanwhile, the controller controls the state of each component in the adjusting unit in different working modes, so that the on-off state between the refrigerant circulation loop and the water tank branch and the on-off state between the outdoor heat exchanger and the indoor heat exchanger group in the refrigerant circulation loop are adjusted; therefore, the refrigerant which does not participate in heat exchange in the refrigerant circulation loop and / or the water tank branch flows back to the compressor based on the pressure difference between the flow path where the refrigerant is located and the inlet of the compressor, refrigerant retention can be avoided, the refrigerant amount during operation of the air conditioning system is ensured, and the refrigerating efficiency of the air conditioning system is improved.

The invention discloses a muting control method and device of multi-split equipment, the multi-split equipment and a storage medium, and relates to the technical field of multi-split equipment control, and the muting control method comprises the steps that in response to a muting control instruction, the current operation mode and the current outdoor environment temperature of the multi-split equipment 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 a water tank of the heat recovery unit is controlled according to the current operation mode, and the current operation frequency of a compressor and / or the current fan rotating speed of an outdoor unit are / is controlled according to the target temperature interval, so that mute control over the multi-split equipment is achieved. At least one of the water tank of the heat recovery unit, the rotating speed of the fan of the outdoor unit and the compressor is controlled, so that the problem of neighborhood complaints caused by noise of the outdoor unit of the heat recovery air conditioner is effectively solved, and the use experience of a user and the refrigerating and heating effects are improved on the premise of ensuring that the noise of the outdoor unit does not disturb residents.

The invention relates to a low-temperature efficient heating air energy heat pump unit, discloses a low-temperature efficient heating air energy heat pump unit, and belongs to the technical field of heat pump air conditioners. The unit is composed of a compressor, an evaporator, a condenser, a throttling valve, a defrosting module, a refrigerant adjusting module and a control unit. The surfaces of fins of the evaporator are coated with polytetrafluoroethylene modified hydrophobic frost-resistant coatings, and the frosting amount can be inhibited by 60% or above; the defrosting module adopts a bypass coupling scheme of a 500-800W electric heating wire and a high-temperature refrigerant, and the defrosting time is less than or equal to 8min and is shortened by 30% compared with a traditional scheme; the refrigerant adjusting module dynamically adjusts the refrigerant temperature of an inlet of the evaporator through the bypass electromagnetic valve and the refrigerant mixing cavity, so that the compressor still maintains 100% of the rotating speed at-25 DEG C without frequency reduction, the COP is larger than or equal to 2.0, and the heating capacity is kept 75% or above of the normal temperature value. The system solves the industrial problems of frequent frosting, high defrosting energy consumption and large heating attenuation under the low-temperature and high-humidity working conditions, and can be widely applied to heating systems in household, commercial and high-humidity and low-temperature areas.

The application discloses an air conditioner and a control method of the air conditioner. The air conditioner comprises: a heat exchange flow path for realizing heat exchange between a domestic water tank and a refrigerant circulation flow path; a control valve group arranged on the refrigerant circulation flow path and used for conducting or cutting off the refrigerant circulation flow path; and a controller connected with the control valve group and a four-way valve. The controller is configured to: acquire a target operation mode of the air conditioner, wherein the target operation mode at least comprises a heating mode, a cooling mode and a cooperative mode in which the heating mode, the cooling mode and a hot water mode are combined; determine that the target operation mode of the air conditioner is the cooperative mode; and control the opening and closing states of the control valve group and the four-way valve according to the cooperative mode, so as to control the operation of the heat exchanger group and adjust the water tank temperature of the domestic water tank. The air conditioner can meet the cooling, heating and hot water demands of users at the same time, and the waste heat generated during the refrigeration or heating is fully utilized to prepare hot water, thereby avoiding energy waste of the air conditioner during the operation.

An electric vehicle thermal management system and method based on a self-circulating gas-liquid phase change cold plate are disclosed. A top cover, a first heat exchanger, a battery case partition and a battery case bottom plate are arranged in sequence from top to bottom, a top heat exchanging chamber is formed between an upper heat exchanging surface of the first heat exchanger and the top cover; the battery case partition is of a square wave-like structure, a working medium chamber is formed between a top of the battery case partition and a lower heat exchanging surface of the first heat exchanger, the working medium chamber is filled with a gas-liquid phase change working medium, and a plurality of battery chambers are formed between the bottom of the battery case partition and the battery case bottom plate.

An air conditioning apparatus includes an outdoor unit, indoor units, a branch unit, and a heat medium circuit through which a heat medium having a global warming potential (GWP) lower than that of the refrigerant circulates. The heat medium circuit has a first pump, a second pump, a first heat exchanger, a second heat exchanger, a first branch header, a second branch header, a first merge header, a second merge header, first on-off valves, second on-off valves, third on-off valves, fourth on-off valves, a fifth on-off valve, a sixth on-off valve, a seventh on-off valve, an eighth on-off valve, a ninth on-off valve, and a tenth on-off valve disposed in the branch unit, a supply main pipe and a return main pipe connecting the branch unit to the outdoor unit, and supply branch pipes and return branch pipes connecting the branch unit to the respective indoor units.

The off-peak electricity heat storage cold and hot steam combined supply system comprises an electric boiler and a water supplementing device, the steam output end of the electric boiler is connected with a first heat storage tank, a second heat storage tank and a steam output pipe, and a first valve is installed between the steam inlet end of the first heat storage tank and the steam output end of the electric boiler; a second valve is installed between the steam inlet end of the second heat storage tank and the steam output end of the electric boiler. The system has the beneficial effects that through cooperation of the electric boiler, the first heat storage tank, the second heat storage tank, the steam output pipe and the hot water output pipe, steam can be generated through the electric boiler in the valley electricity period, and the steam is released in the peak electricity period to meet the production requirement; and the first heat storage tank and the second heat storage tank alternately store heat and release steam and hot water, and sustainable production is met, so that the electric energy cost of a factory is effectively reduced, the peak-valley difference of a power grid can be balanced, and the energy utilization rate is increased.

The disclosure relates to a method (500) for controlling a decentralized heat pump system (100). The system (100) comprising: a first set (110) of one or more heat pump modules; and one or more second sets (120a-c) of one or more heat pump modules (121, 122, 123, 124); the method (500) 5 comprising: determining (S502) at least one of an outdoor temperature, and data pertaining to an electric grid status of an electric grid (150, 160a-c), determining (S504), based on at least one of said outdoor temperature, and said data pertaining to the electric grid status, and, optionally, a specification of the system (100): an ambient side fluid recirculation loop temperature set 10 point of a working fluid of an ambient side fluid recirculation loop (102); detecting (S506) a temperature of the working fluid of the fluid recirculation loop (102); and controlling (S508) an operation of the first set (110) to adjust the first working temperature of the working fluid of the fluid recirculation loop (102) to match said ambient side fluid recirculation loop temperature set point.