CN117490272A - Energy-saving system - Google Patents

Energy-saving system Download PDF

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Publication number
CN117490272A
CN117490272A CN202311601873.3A CN202311601873A CN117490272A CN 117490272 A CN117490272 A CN 117490272A CN 202311601873 A CN202311601873 A CN 202311601873A CN 117490272 A CN117490272 A CN 117490272A
Authority
CN
China
Prior art keywords
battery cooling
heat exchanger
energy
saving system
side heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311601873.3A
Other languages
Chinese (zh)
Inventor
何国辉
罗志航
罗家健
冯铭轩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Yaohua Refrigeration Equipment Co ltd
Original Assignee
Guangzhou Yaohua Refrigeration Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Yaohua Refrigeration Equipment Co ltd filed Critical Guangzhou Yaohua Refrigeration Equipment Co ltd
Priority to CN202311601873.3A priority Critical patent/CN117490272A/en
Publication of CN117490272A publication Critical patent/CN117490272A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309—Overheat or overtemperature protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02791—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using shut-off valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/19—Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The invention provides an energy-saving system, which comprises a heat pump module and a battery cooling pipeline, wherein a compressor, a liquid side heat exchanger, a throttle valve and an air side heat exchanger of the heat pump module are sequentially connected to form a reverse Carnot circulation system; the air side heat exchanger is connected in series between the inlet end and the outlet end of the battery cooling pipeline, the inlet end of the battery cooling pipeline is used for being communicated with the outlet of the battery cooling pipe, the outlet end of the battery cooling pipeline is used for being communicated with the inlet of the battery cooling pipe, and the battery cooling pipeline passes through the liquid side heat exchanger, then bypasses a user terminal and finally is connected into the battery cooling pipe to form reflux circulation. The energy-saving system can take away the heat generated by the battery pack by utilizing the medium in the battery cooling pipeline, and further raise the temperature of the medium by utilizing the heat pump module, so that the medium and the user terminal are subjected to heat exchange to meet the heat energy requirement of the user terminal, the recycling of the heat energy of the battery pack is realized, the energy consumption can be reduced, and the energy resource is saved.

Description

Energy-saving system
Technical Field
The invention relates to the technical field of energy utilization, in particular to an energy-saving system.
Background
The most important component parts in the new energy automobile are a battery pack and various accessories related to the battery pack, when the battery pack (or a battery pack) works, chemical energy is converted into electric energy, heat is inevitably generated when the battery pack (or the battery pack) works, and as the battery pack of the new energy automobile consists of a plurality of battery units in series-parallel connection, if the performance of the battery units is reduced due to overhigh temperature of certain battery units, the performance of the whole battery pack is greatly reduced; if the number of failed battery cells reaches a certain level, the entire battery pack may not be used properly. In addition, the battery pack can also cause overhigh temperature during charging, and short circuit fault can also be caused to part of the circuit of the battery pack in serious condition, at the moment, the overhigh temperature or short circuit fault very easily causes the performance deterioration of the battery pack, even causes serious accidents such as combustion or explosion of the battery pack, and the like, and serious life potential hazards are buried for passengers, so that the battery pack of the new energy automobile or an electric automobile charging station for providing quick charging service for the new energy automobile is provided with a corresponding battery cooling system, and the temperature of the battery pack is reduced to ensure that the temperature of the battery pack is kept within a certain reasonable range.
With the rapid development of new energy automobiles in recent years, the new energy automobiles are deeply popularized to thousands of households, and for living areas with concentrated charging demands of the new energy automobiles, heat accumulated and generated during battery pack charging is huge, and if the heat is still dissipated by using a battery cooling system, the heat is seriously wasted.
Disclosure of Invention
Therefore, the invention aims to provide an energy-saving system, which realizes the recovery and reutilization of heat generated by a rechargeable battery pack and avoids energy waste.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention discloses an energy-saving system, which comprises a heat pump module and a battery cooling pipeline, wherein the heat pump module comprises a compressor, a liquid side heat exchanger, a throttle valve and an air side heat exchanger, and the compressor, the liquid side heat exchanger, the throttle valve and the air side heat exchanger are sequentially connected to form a reverse Carnot circulation system;
the air side heat exchanger is also connected in series between the inlet end and the outlet end of the battery cooling pipeline, the inlet end of the battery cooling pipeline is used for being communicated with the outlet of the battery cooling pipe, the outlet end of the battery cooling pipeline is used for being communicated with the inlet of the battery cooling pipe, and the battery cooling pipeline passes through the liquid side heat exchanger, bypasses a user terminal and finally is connected into the battery cooling pipe to form reflux circulation.
Preferably, the user terminal is a water tank, and the battery cooling pipeline is coiled in the water tank and used for heating water reserved in the water tank.
Preferably, the user terminal is at least one set of heat conduction pipes for adjusting indoor air temperature, a temperature regulator is arranged in the room where each heat conduction pipe is located, each heat conduction pipe is respectively communicated with the battery cooling pipeline in parallel connection, and the heat conduction pipes are respectively provided with a proportional valve and a first delivery pump correspondingly;
the energy-saving system further comprises a control unit, and each temperature regulator, the proportional valve, the first delivery pump, the compressor of the heat pump module and the throttle valve are respectively in communication connection with the control unit.
Further preferably, the battery cooling pipeline is further provided with an expansion tank and a safety relief valve before being communicated with each group of the proportional valve and the first delivery pump.
Further preferably, the energy saving system further comprises a PVT system and a power supply control module, wherein the PVT system comprises a photovoltaic solar panel and a heat collector arranged behind the photovoltaic solar panel;
the power generation assembly of the photovoltaic solar panel is electrically connected with the power control module, the power control module is further electrically connected with the heat pump module, and the power control module is further provided with a charging circuit for charging an automobile and a power transmission circuit for being integrated into a power grid.
Still further preferably, the energy saving system further comprises a first switching valve and a second switching valve, wherein the medium pipeline of the heat collector and the battery cooling pipeline are connected to the liquid side heat exchanger together through the first switching valve, and flow back to form a cycle through the second switching valve after bypassing the user terminal.
Still further preferably, the energy saving system further comprises a groundwater heat source pipeline for communicating with groundwater, the groundwater heat source pipeline is communicated with the liquid side heat exchanger through the first switching valve, and after bypassing the user terminal, the groundwater heat source pipeline is refluxed through the second switching valve to form a circulation.
Still further preferably, the heat pump module further comprises a four-way valve, an exhaust end of the compressor is connected with an inlet of the four-way valve, the air side heat exchanger, the throttle valve and the liquid side heat exchanger are sequentially connected in series between a first outlet and a second outlet of the four-way valve, and a third outlet of the four-way valve is connected with an air inlet end of the compressor.
Still further preferably, a second transfer pump is provided between the first switching valve and the liquid-side heat exchanger.
Preferably, a third delivery pump is arranged between the liquid side heat exchanger and the user terminal.
Compared with the prior art, the energy-saving system has the following main beneficial effects:
according to the energy-saving system, the battery cooling pipeline and the heat pump module are arranged, the battery cooling pipeline passes through the liquid side heat exchanger of the heat pump module and then bypasses the user terminal, and finally the battery cooling pipeline is connected into the battery pack cooling pipeline to form reflux circulation. The heat pump module is utilized to further raise the temperature of the medium in the battery cooling pipeline, so that the medium in the battery cooling pipeline exchanges heat with the user terminal, the heat energy requirement of the user terminal is met, the medium in the battery cooling pipeline flows back into the battery cooling pipe after passing through the user terminal, circulation is formed, recycling of heat energy of the battery is achieved, energy waste caused by heat energy dissipation of the battery is avoided, and energy consumption is greatly reduced and energy resources are saved compared with the situation that the heat pump module is utilized to heat normal-temperature medium for the user terminal.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the invention.
Fig. 1 is a schematic diagram of an energy saving system according to an embodiment of the present invention;
description of the drawings: the heat pump module 1, the compressor 101, the liquid side heat exchanger 102, the throttle valve 103, the air side heat exchanger 104, the fan 105, the battery cooling pipeline 2, the water tank 3, the heat conduction pipe 4, the temperature regulator 5, the proportional valve 6, the first delivery pump 7, the expansion tank 8, the safety relief valve 9, the PVT system 10, the power supply control module 11, the charging circuit 12, the power transmission circuit 13, the first switching valve 14, the second switching valve 15, the groundwater heat source pipeline 16, the four-way valve 17, the second delivery pump 18, the third delivery pump 19, the medium pipeline 20 of the heat collector and the three-way valve 21.
Detailed Description
The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments so that those skilled in the art may better understand the present invention and implement the same, but the illustrated embodiments are not limiting of the present invention, and in this embodiment, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention, and do not indicate or imply that the referred devices or elements must have specific orientations, be configured and operated in specific orientations, and therefore should not be construed as limiting of the present invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.
The first embodiment provides an energy saving system, as shown in fig. 1, including a heat pump module 1 and a battery cooling pipeline 2, where the heat pump module 1 includes a compressor 101, a liquid side heat exchanger 102, a throttle valve 103 and an air side heat exchanger 104 (all not shown in the drawings), and the compressor 101, the liquid side heat exchanger 102, the throttle valve 103 and the air side heat exchanger 104 are sequentially connected to form an inverse carnot cycle system;
the air side heat exchanger 104 is further connected in series between an inlet end and an outlet end of the battery cooling pipeline 2, the inlet end of the battery cooling pipeline 2 is used for being communicated with an outlet of the battery pack cooling pipe, the outlet end of the battery cooling pipeline 2 is used for being communicated with an inlet of the battery pack cooling pipe, and the battery cooling pipeline 2 passes through the liquid side heat exchanger 102, then bypasses a user terminal and finally is connected into the battery pack cooling pipe to form a reflux cycle.
According to the energy-saving system, the battery cooling pipeline 2 and the heat pump module 1 are arranged, the battery cooling pipeline 2 passes through the liquid side heat exchanger 102 of the heat pump module 1 and then bypasses the user terminal, and finally is connected into the battery pack cooling pipe to form reflux circulation. The heat generated by the battery pack is taken away by the medium in the battery cooling pipeline 2, and after the temperature of the medium in the battery cooling pipeline 2 is further increased by the heat pump module 1, the medium is subjected to heat exchange with the user terminal, so that the heat energy requirement of the user terminal is met, the medium in the battery cooling pipeline 2 flows back into the battery pack cooling pipe after passing through the user terminal, circulation is formed, the recycling of the heat energy of the battery pack is realized, the energy waste caused by the heat energy dissipation of the battery pack is avoided, and compared with the case that the normal-temperature medium is heated by the heat pump module 1 for the use of the user terminal, the energy consumption is greatly reduced, and the energy resource is saved. Preferably, the heat pump module 1 further includes a fan 105, where the fan 105 is disposed corresponding to the air side heat exchanger 104, and is configured to accelerate the flow of air around the air side heat exchanger 104, so as to accelerate the heat exchange speed between the air side heat exchanger 104 and the air around the air side heat exchanger.
By way of example, in a specific embodiment, as shown in fig. 1, the user terminal is a water tank 3, and a battery cooling line 2 is wound in the water tank 3 for heating water stored in the water tank 3, preferably, the battery cooling line 2 is wound upward from an inner bottom of the water tank 3, thereby enabling uniform heating of water in the water tank 3.
As an example, in another specific embodiment, as shown in fig. 1, the user terminal is at least one set of heat conduction pipes 4 for adjusting indoor air temperature, a temperature regulator 5 is disposed in each room where each heat conduction pipe 4 is located, the heat conduction pipes 4 in each room are respectively communicated with the battery cooling pipeline 2 in parallel connection, and the heat conduction pipes 4 are respectively provided with a proportional valve 6 and a first delivery pump 7 correspondingly; the energy saving system further comprises a control unit, and each temperature regulator 5, the proportional valve 6, the first delivery pump 7 and the compressor 101 and the throttle valve 103 of the heat pump module 1 are respectively in communication connection with the control unit.
Of course, in another specific embodiment, as shown in fig. 1, the three-way valve 21 may be provided, and two outlets of the three-way valve 21 are respectively connected with the pipeline inlets of the two types of user terminals in the two embodiments, so that the type of user terminal of the energy-saving system can be switched by controlling the three-way valve 21.
After the control unit in this embodiment obtains the set temperature value signal and the indoor and outdoor temperature difference signal sent by the temperature regulator 5 in each room, the heating scheme is comprehensively calculated according to the set temperature value and the indoor and outdoor temperature difference value in each room, and then the proportional valve 6 and the first delivery pump 7 in each room are integrally controlled, and the working frequency of the compressor 101 and the pressure of the throttle valve 103 are feedback controlled, so that comfortable heating is realized. It is further preferred that the battery cooling circuit 2 is further provided with an expansion tank 8 and a safety relief valve 9 before communicating with the respective sets of said proportional valve 6 and the first transfer pump 7, wherein the expansion tank 8 is used for regulating the line pressure.
In another preferred embodiment, as shown in fig. 1, the energy saving system further includes a PVT system 10 and a power control module 11, where the PVT system 10 includes a photovoltaic solar panel and a heat collector disposed behind the photovoltaic solar panel, and the heat collector can absorb low-level heat energy that cannot be converted into electric energy, and can still obtain the low-level heat energy in the air when the sunlight is insufficient or at night; the power generation assembly of the photovoltaic solar panel is electrically connected with the power control module 11 so as to distribute electric energy converted by solar energy; the power control module 11 is also electrically connected to the heat pump module 1, providing the heat pump module 1 with the power necessary for operation, the power control module 11 being further provided with a charging line 12 for charging the car and a transmission line 13 for incorporation into the power grid.
The power control module 11 in this embodiment can perform real-time adjustment and distribution according to the generated energy of the photovoltaic solar panel in the PVT system 10 and the power demand of each connected power end, and after the charging circuit 12 is connected to the charging port of the automobile, the power generated by photovoltaic can be used to charge the battery of the automobile, and also can supply power for the operation of the heat pump module 1, and if there is surplus power, the surplus power can also be transmitted to the power grid to obtain the subsidy. According to the embodiment, the PVT system 10 and the power supply control module 11 are arranged, the charging circuit 12 for charging the automobile is arranged on the power supply control module 11, the power supply control module 11 is electrically connected with the heat pump module 1, a green sustainable energy source is provided for the operation of the energy saving system, meanwhile, the power can be supplied to an external automobile battery pack, and the green energy utilization rate of the energy saving system is further improved.
In a further preferred embodiment, the energy saving system further comprises a first switching valve 14 and a second switching valve 15, wherein the medium pipeline 20 and the battery cooling pipeline 2 of the heat collector are connected into the liquid side heat exchanger 102 together through the first switching valve 14, and respectively return to form a circulation through the second switching valve 15 after bypassing the user terminal. In this embodiment, the heat collector and the battery cooling pipeline 2 are connected to the liquid side heat exchanger 102 through the first switching valve 14 and the second switching valve 15, so that the heat source type entering the heat pump system can be switched by controlling the first switching valve 14 and the second switching valve 15, and the utilization of the heat energy in the heat collector in the PVT system 10 is realized, so that the heat energy source type of the system is enriched, the improvement of the energy utilization rate is promoted, and the heat energy requirement of the user terminal is ensured.
In a still further preferred embodiment the energy saving system further comprises a groundwater heat source pipe 16 for connection to groundwater, the groundwater heat source pipe 16 being connected to the liquid side heat exchanger 102 via a first switching valve 14 and being returned to the loop via a second switching valve 15 after bypassing the user terminal. The energy-saving system can utilize the underground water heat source, so that on one hand, the heat energy source type of the system is enriched, the improvement of the energy utilization rate is promoted, and on the other hand, the defect of insufficient energy supply of the energy-saving system under the condition of insufficient heat energy or sunlight from automobile charging and discharging particularly in cold areas or seasons of the climate is overcome, so that the full-time heat energy requirement of the user terminal is better ensured.
In order to realize the cooling function of the energy saving system, in a further preferred embodiment, the heat pump module 1 further includes a four-way valve 17 (not shown in the drawings), the exhaust end of the compressor 101 is connected to the inlet of the four-way valve 17, the air side heat exchanger 104, the throttle valve 103 and the liquid side heat exchanger 102 are sequentially connected in series between the first outlet and the second outlet of the four-way valve 17, and the third outlet of the four-way valve 17 is connected to the air inlet of the compressor 101, so that by controlling the on-off state of the four-way valve 17, whether the high-temperature and high-pressure gas discharged from the compressor 101 flows into the air side heat exchanger 104 first or flows into the liquid side heat exchanger 102 first can be controlled, so that the temperature of the gas entering the liquid side heat exchanger 102 can be changed, and the switching of the cooling and heating functions of the energy saving system can be realized. Specifically, because the underground water has the characteristics of being warm in winter and cool in summer, when the four-way valve 17 is powered off, the high-temperature and high-pressure gas discharged by the compressor 101 flows into the air side heat exchanger 104, flows into the liquid side heat exchanger 102 after passing through the throttle valve 103, and simultaneously controls the first switching valve 14 and the second switching valve 15 to be connected to the underground water heat source pipeline 16, so that the underground water with lower temperature flows through the liquid side heat exchanger 102 to be cooled and then sent to the user terminal, and the cooling requirement of the user terminal is met.
In order to ensure the circulation flow of the energy-saving system pipeline, it is preferable that a second transfer pump 18 is arranged between the first switching valve 14 and the liquid side heat exchanger 102, and a third transfer pump 19 is arranged between the liquid side heat exchanger 102 and the user terminal, as shown in fig. 1.
In this specification, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. An energy saving system, characterized in that: the device comprises a heat pump module and a battery cooling pipeline, wherein the heat pump module comprises a compressor, a liquid side heat exchanger, a throttle valve and an air side heat exchanger, and the compressor, the liquid side heat exchanger, the throttle valve and the air side heat exchanger are sequentially connected to form a reverse Carnot circulation system;
the air side heat exchanger is also connected in series between the inlet end and the outlet end of the battery cooling pipeline, the inlet end of the battery cooling pipeline is used for being communicated with the outlet of the battery cooling pipe, the outlet end of the battery cooling pipeline is used for being communicated with the inlet of the battery cooling pipe, and the battery cooling pipeline passes through the liquid side heat exchanger, bypasses a user terminal and finally is connected into the battery cooling pipe to form reflux circulation.
2. An energy saving system according to claim 1, characterized in that: the user terminal is a water tank, and the battery cooling pipeline is coiled in the water tank and used for heating water reserved in the water tank.
3. An energy saving system according to claim 1, characterized in that: the user terminal is at least one set of heat conduction pipes used for adjusting indoor air temperature, a temperature regulator is arranged in the room where each heat conduction pipe is located, each heat conduction pipe is respectively communicated with the battery cooling pipeline in a parallel connection relationship, and the heat conduction pipes are respectively provided with a proportional valve and a first conveying pump correspondingly;
the energy-saving system further comprises a control unit, and each temperature regulator, the proportional valve, the first delivery pump, the compressor of the heat pump module and the throttle valve are respectively in communication connection with the control unit.
4. An energy saving system according to claim 3, characterized in that: the battery cooling pipeline is also provided with an expansion tank and a safety relief valve before being communicated with each group of the proportional valves and the first delivery pump.
5. An energy saving system according to any one of claims 1 to 4, wherein: the energy-saving system also comprises a PVT system and a power supply control module, wherein the PVT system comprises a photovoltaic solar panel and a heat collector arranged at the back of the photovoltaic solar panel;
the power generation assembly of the photovoltaic solar panel is electrically connected with the power control module, the power control module is further electrically connected with the heat pump module, and the power control module is further provided with a charging circuit for charging an automobile and a power transmission circuit for being integrated into a power grid.
6. An energy saving system according to claim 5, wherein: the energy-saving system further comprises a first switching valve and a second switching valve, wherein the medium pipeline of the heat collector and the battery cooling pipeline are connected into the liquid side heat exchanger through the first switching valve together, and flow back to form circulation through the second switching valve after bypassing the user terminal.
7. An energy saving system according to claim 6, wherein: the energy-saving system further comprises a groundwater heat source pipeline communicated with groundwater, wherein the groundwater heat source pipeline is communicated with the liquid side heat exchanger through the first switching valve and flows back to form circulation through the second switching valve after bypassing the user terminal.
8. An energy saving system according to claim 7, wherein: the heat pump module further comprises a four-way valve, the exhaust end of the compressor is connected with the inlet of the four-way valve, the air side heat exchanger, the throttle valve and the liquid side heat exchanger are sequentially connected between a first outlet and a second outlet of the four-way valve in series, and a third outlet of the four-way valve is connected with the air inlet end of the compressor.
9. An energy saving system according to claim 8, wherein: and a second delivery pump is arranged between the first switching valve and the liquid side heat exchanger.
10. An energy saving system according to claim 1, characterized in that: and a third delivery pump is arranged between the liquid side heat exchanger and the user terminal.
CN202311601873.3A 2023-11-28 2023-11-28 Energy-saving system Pending CN117490272A (en)

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