39results about How to "Improve operating energy efficiency" patented technology

The invention discloses a double-water-tank hot water system and a control method thereof.The double-water-tank hot water system comprises a heat preservation water tank, a heating water tank and a heat pump unit, the water outlet side of the heat preservation water tank is connected to a user side through a second pump unit, and a pressure difference water supplementing pipe with the controllable on-off state is connected between the heating water tank and the heat preservation water tank; the heating water tank is further connected with an external water supplementing pipe. The water inlet side of the heat pump unit is connected to the water outlet side of the heating water tank through the first pump set, and the water outlet side of the heat pump unit is connected with the water inlet side of the heating water tank and / or the water inlet side of the heat preservation water tank in a switchable mode. The heat pump unit is designed on the water outlet side of the heating water tank, the heating water tank and the heat preservation water tank are heated or supplemented with water by switching the connecting state of the water outlet side of the heat pump unit, the condensation temperature of the heat pump unit is reduced while the system structure is simplified, and the operation energy efficiency of the hot water system is effectively improved.

The invention provides a natural cooling control method and system for an energy storage battery liquid cooling unit, and the method comprises the steps: 1, controlling the energy storage battery liquid cooling unit to start a gravity natural cooling mode, and cooling an energy storage battery in the gravity natural cooling mode; 2, the target state of the energy storage battery liquid cooling unit is collected in real time; 3, when the target state reaches a first preset condition, the energy storage battery liquid cooling unit is controlled to be switched to a liquid pump natural cooling mode, and cooling control is conducted on the energy storage battery according to the liquid pump natural cooling mode; 4, updating the target state in real time based on the cooling result, and when the target state reaches a second preset condition, controlling the energy storage battery liquid cooling unit to be switched to a gravity natural cooling mode; through a double-coupling mode of gravity natural cooling and liquid pump natural cooling, an outdoor natural cold source is fully utilized, the operation energy efficiency of the unit is greatly improved, and energy conservation and emission reduction are achieved.

The utility model discloses a refrigerant direct cooling and liquid cooling fusion cooling system, and aims to overcome the defects of high energy consumption, poor cooling performance and use cost increase of a cooling system in the prior art. The technical problem is solved through the following technical scheme: the battery pack cooling system comprises a refrigerating system, a water system for cooling a battery pack and a refrigerant direct cooling system, the water system comprises an evaporator, a circulating pump and a pipeline water electric heater, the refrigerating system comprises a liquid storage tank and a condenser; two ends of the liquid storage tank are respectively connected with the condenser and the evaporator, and an electronic expansion valve is arranged between the evaporator and the liquid storage tank; the refrigerant direct cooling system comprises a power module cooling cold plate, an evaporation pressure regulating valve and an electromagnetic valve; one end of the power cooling cold plate communicates with the liquid storage tank, the other end of the power cooling cold plate communicates with the evaporation pressure regulating valve, and the electromagnetic valve is arranged between the power module cooling cold plate and the liquid storage tank; and one end of the evaporation pressure regulating valve far away from the power module cooling is communicated with an air suction pipe of the refrigeration system.

The invention provides a building standard floor electromechanical pipeline modular arrangement sequence optimization method, and belongs to the technical field of building construction, and the method comprises the steps: firstly building a fine building BIM model, and dividing an electromechanical system into small modules; then analyzing the relationship between the modules, and determining a necessary sequence and a variable sequence; a weighted directed graph network is established for the variable sequence, and a heuristic function is defined. And searching an optimal arrangement path in the network by adopting an improved A * algorithm, and generating a detailed arrangement scheme. And finally, collision detection and simulation installation are carried out in the BIM model, and the feasibility of the scheme is verified. If problems exist, weight adjustment and optimization are returned until a final scheme is obtained. According to the optimization method, the BIM technology, the graph theory and the heuristic search algorithm are combined, electromechanical pipeline arrangement in a complex building can be effectively optimized, and the technical problem that in the prior art, modular arrangement sequence optimization of electromechanical pipelines of a building standard floor is difficult to achieve quickly and efficiently is solved.

The invention provides a liquid cooling unit control method, system and device and a nonvolatile storage medium. The liquid cooling unit control method comprises the steps that the working environment temperature value of a liquid cooling unit is obtained; determining a corresponding environment temperature interval according to the environment temperature value; and determining a corresponding adjustment target value according to the environment temperature interval, and adjusting the operation condition of a compressor and / or a fan of the liquid cooling unit according to the adjustment target value. Through the technical scheme provided by the invention, the technical problem that the energy efficiency of an energy storage liquid cooling unit in the prior art is relatively low can be solved.

The invention discloses an energy storage system and a photovoltaic energy storage system, and belongs to the technical field of energy storage. In the energy storage system, a refrigerating loop comprises a compressor, a first path of a condenser, a first expansion valve and a first path of an evaporator; a heat exchange part of the energy storage battery is communicated with a first flow path, and the first flow path comprises a first pump and a heater; a first heat sink; the heat exchange part of the electronic device is communicated with a second flow path, and the second flow path comprises a second pump and a second radiator; a plurality of valve ports of the valve group are respectively connected with the second path of the condenser, the second path of the evaporator, the first radiator, the first flow path and the second flow path, and the valve ports can be selectively opened and closed. By using the structure, energy storage batteries and electronic devices with different water inlet temperature requirements respectively adopt the corresponding radiators for independent heat dissipation, so that the heat exchange capability requirements of the radiators are reduced, and the manufacturing cost and the maintenance cost are reduced.

The invention relates to a control strategy debugging system, method and device of a central air conditioning system. The control strategy debugging system of the central air conditioning system comprises a virtual cold station and an AI intelligent control device. The virtual cold station is used for simulating operation of the real cold station to obtain real-time operation parameters; the AI intelligent control device is used for acquiring real-time operation parameters of the virtual cold station; predicting a target load of the virtual cold station based on the real-time operation parameters; performing dynamic parameter optimization based on the target load to obtain multiple groups of energy efficiency control strategies; and performing energy efficiency evaluation in the multiple groups of energy efficiency control strategies to obtain an optimal control strategy. According to the embodiment of the invention, actual debugging in an actual central air-conditioning system is not needed, all-working-condition energy-saving effect debugging and verification can be realized in a laboratory in a factory, the debugging efficiency is greatly improved, and the debugging period is shortened; operation experiment working conditions can be flexibly set, the energy-saving effect of different control strategy combinations is verified, the optimal control strategy is selected, and the operation energy efficiency of the central air-conditioning system is improved.

The utility model discloses a punching sheet assembly, a motor, a compressor and an air conditioning system, the punching sheet assembly comprises a stator punching sheet, the stator punching sheet is provided with a yoke portion arranged in a surrounding manner, the peripheral wall of the yoke portion is provided with a plurality of trimming grooves at intervals, and the sum of projection areas of the plurality of trimming grooves in the thickness direction is S1; the rotor punching sheet is arranged inside the stator punching sheet in the radial direction, the rotor punching sheet is provided with a plurality of through-flow holes which are arranged around the center of the rotor punching sheet at intervals, the sum of the projection areas of the plurality of through-flow holes in the thickness direction is S2, and S1 and S2 meet the condition that S1 / S2 is larger than 0.65 and smaller than 0.95. According to the punching sheet assembly provided by the utility model, the sizes of the trimming grooves and the sizes of the through-flow holes are optimally designed, so that the structures of the stator punching sheet and the rotor punching sheet can reduce the operation energy consumption of a motor, improve the operation efficiency of the motor and ensure the efficient operation of the compressor.

The present invention relates to the technical field of refrigeration cycle, and specifically to a refrigeration system and circulation method for realizing low-temperature refrigeration, wherein the refrigeration system comprises a high-temperature cycle system and a low-temperature cycle system, wherein the high-temperature cycle system comprises a high-temperature low-pressure compressor, a high-temperature high-pressure compressor, a high-temperature condenser, a high-temperature intermediate cooler, a high-temperature low-pressure economizer and a condensing evaporator connected in series in sequence, wherein the high-temperature intermediate cooler is connected to the pipeline between the high-temperature low-pressure compressor and the high-temperature high-pressure compressor through a pipeline, and the high-temperature low-pressure economizer is connected to the high-temperature low-pressure compressor through a pipeline; and the low-temperature cycle system comprises an evaporator, a regenerator, a low-temperature low-pressure compressor, a low-temperature high-pressure compressor, a condensing evaporator and a liquid storage device connected in series, wherein the outlet of the liquid storage device is connected to the regenerator, and the regenerator is connected to the evaporator through a pipeline, so that the refrigerant circulates and refrigerates in a subcritical state, thereby improving the refrigeration efficiency.

The invention discloses an efficient and energy-saving indirect heat exchange unit with an air-air heat exchanger, and relates to the technical field of heat exchange units. The air-to-air heat exchanger comprises an air-to-air heat exchanger body, a water replenishing device and a condenser, the water replenishing device is connected with a water storage tank, the water storage tank is connected with an evaporator cold water pump and an evaporation cold drainage device, and the evaporator cold water pump is connected with an evaporation cold spraying device; the condenser is connected with a fluorine system throttle valve, the fluorine system throttle valve is connected with an evaporator, the evaporator is connected with a fluorine system compressor, and a branch pipe is connected between the fluorine system compressor and the condenser. The indoor bypass electric air valve is additionally arranged on the indirect evaporation cooling unit, under the conditions that the outdoor temperature is low and the rotating speed of the outdoor draught fan is not high, the indoor bypass electric air valve is opened, indoor return air is partially bypassed, the rotating speed of the outdoor draught fan is increased, the power of the indoor draught fan is reduced, the indoor draught fan and the outdoor draught fan operate in a balanced mode, and the operation efficiency of the draught fans is improved; and the annual operation energy efficiency of the whole machine is improved.

The application discloses a kind of to time data processing method and system, it is related to data processing technical field, the method includes: based on local environment data, acquisition acquisition cycle, collect high-precision time data and local perception data;Data characteristics of the same batch crystal are analyzed, and based on the high-precision time data and the local perception data, obtain time deviation;Based on the data characteristics analysis rationality of time deviation, obtain rationality analysis result, adjust the acquisition cycle, obtain optimized acquisition cycle;Based on the local environment data is combined mapping table to obtain correction value, and based on the time deviation and crystal data characteristics and the mutual influence correlation of time deviation, the mapping table is dynamically revised, to obtain revised mapping table, for the time data processing of next cycle.The application solves the technical problem that the prior art exists and time data processing effect is not good.

The invention provides a heat pump water heater control method, device and equipment and a storage medium, and the method comprises the steps that a heat pump water heater control request for a target heat pump water heater is responded, and the target set temperature and the heat pump operation temperature of the target heat pump water heater are obtained; a target heat pump control strategy of the target heat pump water heater is determined according to the water tank temperature, the return water temperature and the heat pump refrigerant pipe temperature in the heat pump operation temperature and a target energy efficiency model; and according to the target heat pump control strategy, heat pump operation parameters of the target heat pump water heater are adjusted, and a target heat pump control result is obtained. According to the technical scheme, the target heat pump water heater can be driven to be in the appropriate operation interval during operation, so that the operation energy efficiency of the target heat pump water heater is improved, and the energy-saving effect of the target heat pump water heater is improved.

The utility model discloses a novel steam energy-saving system which comprises a heat exchange device, and a flash tank used for gas-liquid separation and an adjustable injection pump used for increasing steam pressure are connected between a heat exchange medium outlet and a heat exchange medium inlet of the heat exchange device through pipelines. A material inlet of the flash tank is connected to a heat exchange medium outlet of the heat exchange equipment through a pipeline, a condensate pump is arranged on a pipeline connected with a liquid outlet in the bottom of the flash tank, and a steam outlet in the top of the flash tank is connected to a low-pressure steam inlet of the adjustable injection pump through a pipeline. A high-pressure steam inlet of the adjustable injection pump is connected to the steam thermodynamic system through a pipeline, and a steam outlet of the adjustable injection pump is connected to a heat exchange medium inlet of the heat exchange equipment through a pipeline. The utility model improves the heat exchange efficiency, reduces the harm of steam condensed water, improves the energy conservation of a steam thermodynamic system, and is mainly used for heat exchange equipment using steam as a heat source and a jacket type heating process.

The invention relates to an air conditioner control method and device and an air conditioner system.The air conditioner control method comprises the steps that running state data of a fixed-frequency unit and a variable-frequency unit in the air conditioner system are obtained; an operation unit in the air conditioning system is determined according to the operation state data, and the operation unit comprises a fixed-frequency unit or a combination of the fixed-frequency unit and the variable-frequency unit; the opening degree of a flow adjusting device in the running unit is obtained; and the operation load rate of the operation unit is adjusted according to the operation state data and the opening degree of the flow adjusting device. According to the embodiment of the invention, the fixed-frequency unit and the variable-frequency unit can be respectively controlled, so that the operation load rate of the operation unit (the fixed-frequency unit or the combination of the fixed-frequency unit and the variable-frequency unit) reaches relatively high energy efficiency, the advantages of the fixed-frequency unit and the variable-frequency unit can be effectively exerted, and the purpose of improving the overall operation energy efficiency is achieved.

The invention belongs to the technical field of water chilling unit systems and control methods thereof, and particularly relates to an air and water double-cold-source water chilling unit system control method which comprises the following specific steps: step 1, data acquisition and calculation: user side basic data, equipment parameters and operation parameters are acquired respectively, and data are acquired and calculated; according to the water chilling unit system, the water pipe bundle heat exchange unit is added on the basis of a traditional evaporative water chilling unit system, a natural cold source can be fully utilized according to the cold load requirement of a user, and the water chilling unit system is more environmentally friendly; on the basis of collecting user basic data and equipment parameters, calculation models of user load, equipment heat exchange characteristics, system energy efficiency and the like are constructed, and parameters such as equipment energy efficiency, system energy efficiency, real-time refrigerating capacity, accumulated refrigerating capacity, sensible heat exchange capacity, latent heat exchange capacity, total heat exchange capacity, operation time and the like are adopted to jointly formulate a control strategy. Precise control over the water chilling unit system is achieved.

A new energy bus air conditioning system, including two sets of independent compressor temperature control system, one set of compressor temperature control system is integrated with battery thermal management system, each set of compressor temperature control system includes compressor, indoor heat exchanger, electronic expansion valve, outdoor heat exchanger and controller, indoor heat exchanger and outdoor heat exchanger are communicated with the compressor respectively, each outdoor heat exchanger is provided with an outdoor fan, the core body of each indoor heat exchanger is provided with an air outlet temperature sensor, the exhaust port of each compressor is provided with a pressure sensor, the air outlet temperature sensor, pressure sensor, compressor and outdoor fan are connected with the controller respectively.The utility model adds temperature sensor detection indoor heat exchanger core body air temperature, pressure sensor detects the exhaust pressure at the exhaust port of compressor, and the start-stop and the rotating speed of compressor and the rotating speed of outdoor fan are controlled by controller, so that the compressor is in a high energy efficiency working state, and the energy efficiency of air conditioner actual operation is improved.

The application discloses a gas boiler for clothes ironing, and relates to the technical field of gas boilers, which comprises a boiler body, a detection module, a gas adjusting module, a waste heat recovery module, an execution module and an intelligent control system; the boiler body is used for generating and outputting steam, and is provided with a gas supply passage, a water inlet passage, a steam output passage, an exhaust passage and / or a condensed water recovery passage; the detection module is used for collecting boiler operation parameters and / or ironing load parameters; the intelligent control system is pre-stored with ironing process parameters corresponding to a plurality of fabric gears, and is used for controlling the gas adjusting module to adjust the gas supply amount or the gas heating power and controlling the execution module to adjust the steam output according to the selected fabric gear and the parameters collected by the detection module; and the waste heat recovery module is in heat exchange connection with the exhaust passage and / or the condensed water recovery passage of the boiler body, and is used for supplying the recovered heat to the gas supply passage and / or the water inlet passage for preheating, so as to reduce energy consumption.

The present application discloses an energy-saving radiant cooling and heating heat pump system, comprising cold and heat source components and a circulating water system, wherein the circulating water system comprises a water tank, and the cold and heat source components comprise a refrigerant-water heat exchanger; the refrigerant-water heat exchanger performs heat exchange with the water tank, and the water tank is connected with ground buried pipes and wall buried pipes, the ground buried pipes and wall buried pipes are connected with switchable series or parallel pipes, and the series-parallel connection switching of the ground buried pipes and the wall buried pipes is achieved according to the switching temperature set by the system controller, and the heating or cooling capacity of the refrigerant-water heat exchanger is adjusted according to the outdoor ambient temperature, thereby improving the comfort of people in the air-conditioned room while achieving energy saving and environmental protection.

This invention discloses a direct expansion liquid carbon dioxide circulation system, comprising a variable frequency carbon dioxide compressor matrix, a liquid refrigeration condenser, a high-pressure liquid carbon dioxide receiving tank, a primary expansion valve, a low-pressure carbon dioxide liquid tank, a secondary expansion valve, and a cold storage tank, all connected sequentially via pipelines. A liquid carbon dioxide pump is installed between the low-pressure carbon dioxide liquid tank and the secondary expansion valve. The outlet of the cold storage tank is connected to the return port of the low-pressure carbon dioxide liquid tank, and an intelligent pressure regulating valve is installed between the return port and the inlet of the compressor matrix. This system uses environmentally friendly carbon dioxide as the working fluid, significantly improving energy efficiency and reducing throttling losses through a direct expansion phase change refrigeration cycle. The integrated intelligent control of the compressor matrix and multi-stage heat exchange process achieves dynamic matching of heating and cooling energy and efficient recovery of condensation heat, enabling a single system to collaboratively meet diverse heating and cooling needs and significantly improve overall energy utilization efficiency.

The invention relates to the technical field of intelligent household appliances, and discloses an air conditioning system with an intermittent heat exchange function, comprising: an air conditioning unit comprising an outdoor heat exchanger and at least one indoor heat exchanger, the indoor heat exchanger being a three-medium heat exchanger; the outdoor heat exchanger is communicated with the first medium channel of the indoor heat exchanger and forms a first refrigerant circulation loop; the heat exchange unit comprises at least one radiation heat exchange device; an internal pipeline of the radiation heat exchange device is communicated with a second medium channel of the indoor heat exchanger to form a second refrigerant circulation loop; wherein at least one side of the second medium channel of each indoor heat exchanger is provided with a first valve, at least one side of the internal pipeline of each radiation heat exchange device is provided with a second valve, the second refrigerant circulation loop is provided with a circulation pump, and multiple functional modes are achieved by controlling the states of the circulation pump and the multiple valves. The air conditioning system is more suitable for various working condition requirements, the operation energy efficiency can be effectively improved, and the structure of the air conditioning system is simplified.

A control method for improving the overall energy efficiency of a multi-electrolyte workshop is proposed. Based on the product type of the workshop (electrolysis of water for hydrogen production, chlor-alkali production, and electrolysis of aluminum), where the products can be hydrogen, chlor-alkali, or electrolytic aluminum, and assuming n operating electrolyzers with similar energy efficiency, the optimal product allocation method is to maintain equal energy efficiency for each of the n operating electrolyzers, i.e., η1 = η2 = ... = η n The switching point for the number of electrolyzers operating from n to m is at the overall energy efficiency η of the n operating electrolyzers. tn The overall energy efficiency η of m operating electrolyzers tm Equal point, i.e., η tn =η tm When all n operating electrolytic cells are of the same model, the product quantities are evenly distributed as follows: Q1=Q2=…=Q n =Q t / n, where m is one of (n-1) and (n+1). When all the operating electrolytic cells are not of the same model, the value of m includes two cases: m=n and m≠n.

The invention discloses a triethylene glycol negative pressure regeneration system and method, and relates to the technical field of natural gas purification application, the triethylene glycol negative pressure regeneration system comprises a rectifying column, a heat exchanger, a flash tank, a buffer tank, a reboiler and a gas-liquid separator, the rectifying column is arranged above the reboiler and is communicated with the reboiler, a preheating pipe is arranged at the upper part in the rectifying column, the bottom of the reboiler is communicated with the buffer tank, and the buffer tank is communicated with the heat exchanger. A spiral pipe is arranged in the buffer tank, a barren liquor outlet is formed in the bottom of the buffer tank, and a fire pipe is arranged in the reboiler; an outlet of the preheating pipe is connected with a material inlet of a heat exchanger through a pipeline J. The heat exchanger is connected with a flash tank which is connected with a spiral pipe. The outlet is communicated with the feeding hole of the rectifying column; a gas-phase outlet of the rectifying column is connected with a plurality of compressors which are connected with a medium inlet of the heat exchanger; the medium outlet of the reboiler is connected with the gas-liquid separator, and the gas-liquid separator is communicated with the fuel gas inlet of the fire tube, so that the aims of regenerating triethylene glycol at low temperature, reducing the scaling risk of the fire tube, improving the operation energy efficiency of the system and enhancing the operation safety of the reboiler are fulfilled.

The application relates to the technical field of power distribution equipment, and discloses a high-energy-efficiency intelligent hybrid type terminal voltage management device for distribution areas, which comprises a current and voltage sampling module, an intelligent voltage regulating controller module, a voltage regulating transformer module and an intelligent capacitor bank connected to a terminal line of a distribution area; further comprises an environment regulation unit, a safety protection unit, a seamless bypass unit and an Internet of Things remote control device; the current and voltage sampling module is used for collecting electrical parameters of the distribution line, and the intelligent voltage regulating controller module is used for overall planning and control of the voltage regulating transformer module and the intelligent capacitor; the terminal voltage regulation and dynamic reactive power compensation are realized; the device is combined with hierarchical temperature control, low-temperature anti-freezing, multi-stage safety protection and Internet of Things remote control; the device has local man-machine interaction and fault bypass switching functions, is reliable in operation, high in integration, strong in intelligence and wide in adaptability, and is suitable for terminal voltage management and power quality optimization of various urban and rural low-voltage distribution areas.

The application discloses a multi-layer stacked cluster computing chip system capable of constrained expansion and an implementation method thereof, three-dimensional stacked integrated circuit technology, adopts a central radiation architecture, controls and manages multi-layer stacked units in a central control hub, realizes constrained expansion through signal retiming compensation, and controls transmission delay. Physical isolation composite bus integrates data, clock and power supply signals, and suppresses crosstalk. The central integrated synchronization, routing and power consumption control module dynamically optimizes clock and scheduling efficiency; Manhattan shortest path is adopted for data forwarding to ensure linear growth of computing power. The stacked unit is designed in a partition mode and reinforced with through silicon via coupling defects, is adapted to multiple CMOS processes, and meets the requirements of AI, high-performance computing, aerospace and edge scenarios. Compared with traditional chips, the computing power density, energy efficiency and adaptability are improved, the attenuation in the expansion range is low, and the stability is enhanced.

The utility model relates to an anti-freezing device for a power plant cooling water tower, in particular to an anti-freezing device for an outer eave of the top of a tower drum of the power plant cooling water tower. The problem that the outer eave of the tower is frozen or even frozen is solved. According to the technical scheme, the system comprises an energy conversion device which converts input electric energy into heat energy and diffuses the heat energy to a tower outer eave attached to the energy conversion device; the auxiliary device is used for arranging the energy conversion device on the outer eave of the tower; and the power transmission and distribution system is connected with the energy conversion device and transmits electric energy to the energy conversion device. The anti-freezing device adopting the electric heating principle is arranged at the concrete part of the tower outer eave at the top of the tower drum of the cooling tower, so that the temperature of a concrete member at the concrete part is always above zero, and the concrete member cannot be condensed into ice at the concrete part. When the cooling tower operates in winter, the reasonable operation scheme and the scientific melting and deicing mode can avoid or reduce the operation risk caused by freezing of the cooling tower, meanwhile, the operation energy efficiency of the system can be improved, and the service life of the cooling tower is prolonged.

This invention provides a control method, apparatus, and temperature control device for a magnetic refrigeration temperature control system, relating to the field of temperature control technology. The magnetic refrigeration temperature control system includes a magnetic refrigeration unit and a heat exchange unit. The method includes: acquiring current environmental parameters and calculating the deviation between the current environmental parameters and target environmental parameters; adjusting the control parameters from the previous moment based on the deviation value and a preset adjustment coefficient to obtain the control parameters for the current moment; wherein the control parameters include magnetic field strength, magnetic field change frequency, and working fluid flow rate; and controlling the magnetic refrigeration unit and heat exchange unit based on the control parameters for the current moment. This invention enables the entire magnetic refrigeration temperature control system to intelligently respond to environmental changes, maintaining efficient, stable, and precise operation.

The embodiment of the invention provides a heat pump water heater, a control method and device of the heat pump water heater and a computer readable storage medium. The control method of the heat pump water heater comprises the steps that the outdoor environment temperature and the exhaust pressure and the suction pressure of a compressor are obtained; the pressure difference value of the exhaust pressure and the suction pressure of the compressor is determined; and the rotating speed of an outdoor fan is controlled according to the outdoor environment temperature and the pressure difference value.

The invention discloses an energy storage thermal management system, an energy storage system and a photovoltaic energy storage system, and belongs to the technical field of energy storage. The energy storage heat management system comprises a heat exchange circulation loop which comprises a compressor, a condenser and an evaporation flow path, wherein the evaporation flow path comprises an expansion valve and a first path of an evaporator; the first heat exchange channel comprises an energy storage battery liquid cooling channel and a first water pump, and the first heat exchange channel is connected with the second path of the evaporator; the second heat exchange passage comprises a first radiator and a driving passage which are connected in parallel, the driving passage comprises a second water pump and an electronic device radiating channel, the second heat exchange passage is connected with the second path of the evaporator, and the working parameters of the first water pump are different from those of the second water pump; the three-way valve comprises a first valve port, a second valve port and a third valve port, the first valve port is connected to the first heat exchange passage, the second valve port is connected to the second heat exchange passage, and the third valve port is connected to the second path of the evaporator. By using the structure, the cooling liquid flow requirements of the energy storage battery and the electronic device are considered.

The dish-washing machine drying system comprises an outer circulation air pipe, a first fan, a heater, a drying cavity, an air suction air pipe and a second fan, and the first fan is installed in the outer circulation air pipe and used for providing power for air suction of the outer circulation air pipe from the external environment; the heater is arranged on an air blowing path of the first fan and is used for heating air blown to the washing chamber by the first fan; the drying cavity is attached to the outer circulation air pipe and is in thermal connection with the heater, the drying cavity is provided with a drying chamber, a drying agent capable of being heated and regenerated is stored in the drying chamber, and one end of the drying cavity is used for being communicated with the outer circulation air pipe and the washing chamber at the same time; the air suction pipe is used for communicating with the washing chamber, and the air suction pipe further communicates with the other end of the drying chamber; the second draught fan is installed in the air suction air pipe and used for providing power for air suction of the air suction air pipe from the interior of the washing cavity. Therefore, the humidity of the air in the washing chamber can be uniformly reduced, and the energy consumption can be reduced.

The present invention discloses a system control method, device, air source heat pump system, storage medium and electronic device based on air volume attenuation. Among them, the method includes: after the system starts heating operation, whether each unit of the system needs to be defrosted is detected; if so, the real-time air volume of each unit to be defrosted is detected, and the units to be defrosted are controlled to defrost in the order of air volume from small to large; if not, whether the terminal load of the system changes is determined; according to the change trend of the terminal load and the size order of the real-time air volume of the unit, the unit loading operation, load reduction operation or frequency increase and decrease operation is performed. When the unit needs to be defrosted, the present invention determines the defrosting order of the unit according to the actual air volume attenuation of the unit; when the unit does not need to be defrosted, the system loading and unloading, frequency increase and decrease judgment basis is given according to the actual air volume attenuation of the unit. By optimizing the operation strategy, the cold island effect caused by the centralized placement of the unit is improved, and the operation energy efficiency of the air source heat pump system is improved.