CN211822632U

CN211822632U - Energy supply system

Info

Publication number: CN211822632U
Application number: CN201922140147.1U
Authority: CN
Inventors: 曾智勇; 张榜; 崔小敏; 赖伟聪
Original assignee: SHENZHEN ENESOON SCIENCE & TECHNOLOGY CO LTD
Current assignee: SHENZHEN ENESOON SCIENCE & TECHNOLOGY CO LTD
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-10-30
Anticipated expiration: 2029-12-02

Abstract

The application provides an energy supply system, which comprises a heating unit for storing and heating heat transfer media, a refrigerating unit for storing and cooling the heat transfer media, a conveying pipe for conveying the heat transfer media, a power pump and heat exchange unit, a first communication valve and a second communication valve, wherein the power pump and the heat exchange unit are respectively arranged on the conveying pipe. The heat exchange unit can heat the heat transfer medium stored in the heating unit through the power pump and then convey the heat transfer medium to the heat exchange unit through the conveying pipe, so that heat supply is realized; the heat transfer medium stored in the refrigerating unit can be cooled and then conveyed to the heat exchange unit through the conveying pipe, and cooling is achieved. Therefore, the energy supply system can respectively store a heat source and a cold source through the heating unit and the refrigerating unit, so that energy storage is realized, cross-season utilization is realized, the consumption of energy such as electric energy and fossil is low, and the effects of energy conservation and environmental protection are achieved.

Description

Energy supply system

Technical Field

The application belongs to the technical field of energy supply, and more specifically relates to an energy supply system.

Background

Because the temperature is too high in summer, a cold source is needed for cooling; the temperature is too low in winter, and a heat source is needed for keeping warm. At present, fans, air conditioners and the like are often preferred as cooling systems, and coal, gas and the like are preferred as heating systems. However, these heating and cooling systems directly convert electric energy, fossil energy, etc. into cold and heat sources to achieve the purpose of heating or cooling, which results in great consumption of energy and causes great pollution to the environment; moreover, cold sources manufactured in summer and heat sources manufactured in winter cannot be stored, and seasonal use cannot be realized, so that energy waste is caused.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide an energy supply system to solve the problem that the cooling and heating system that exists in the related art can not realize cross-season utilization with energy storage, resulting in energy consumption to be big.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: provided is an energy supply system including:

a heating unit for storing and heating a heat transfer medium;

a refrigerating unit for storing and cooling the heat transfer medium;

a delivery pipe for delivering the heat transfer medium;

the heat exchange unit is arranged on the conveying pipe and used for realizing heat exchange with the outside;

the first communicating valve is respectively connected with the liquid outlet of the heating unit, the liquid outlet of the refrigerating unit and one end of the conveying pipe and is used for switching the liquid outlet of the heating unit or the liquid outlet of the refrigerating unit to be communicated with the conveying pipe;

the second communication valve is respectively connected with the liquid inlet of the heating unit, the liquid inlet of the refrigerating unit and the other end of the conveying pipe and is used for switching the liquid inlet of the heating unit or the liquid inlet of the refrigerating unit to be communicated with the conveying pipe;

and the power pump is arranged on the conveying pipe and is used for conveying the heat transfer medium to the heat exchange unit.

In one embodiment, the heating unit includes:

a heat collector storing the heat transfer medium for heating the heat transfer medium;

a heat source storage for storing a heat source;

a first control pump for delivering the heat transfer medium in the heat collector to the heat source storage;

the first three-way valve is respectively connected with the outlet of the first control pump, the liquid inlet of the heat source storage and the second communication valve and is used for switching the communication between the outlet of the first control pump and the liquid inlet of the heat source storage or the second communication valve; and the number of the first and second groups,

the second three-way valve is respectively connected with the liquid inlet of the heat collector, the liquid outlet of the heat source storage and the first communication valve and is used for switching the liquid outlet of the heat source storage to be communicated with the liquid inlet of the heat collector or the first communication valve;

and the liquid outlet of the heat collector is communicated with the inlet of the first control pump.

In one embodiment, the heating unit further includes a first temperature detector mounted on the heat source storage at a position close to an inlet of the heat source storage and a second temperature detector mounted on the heat source storage at a position close to an outlet of the heat source storage.

In one embodiment, the heating unit further includes a temperature detector and a first pressure relief valve respectively mounted on the heat collector.

In one embodiment, the heating unit further comprises a second pressure relief valve mounted on the heat source reservoir.

In one embodiment, the refrigeration unit comprises:

a heat sink storing the heat transfer medium for cooling the heat transfer medium;

the cold source storage is used for storing a cold source;

the second control pump is used for conveying the heat transfer medium in the radiator to the cold source storage;

the third three-way valve is respectively connected with the outlet of the second control pump, the liquid inlet of the cold source storage and the second communication valve and is used for switching the communication between the outlet of the second control pump and the liquid inlet of the cold source storage or the second communication valve;

the fourth three-way valve is respectively connected with the liquid outlet of the cold source storage, the liquid inlet of the radiator and the first communication valve and is used for switching the liquid outlet of the cold source storage to be communicated with the liquid inlet of the radiator or the first communication valve;

and the liquid outlet of the radiator is communicated with the inlet of the second control pump.

In one embodiment, the refrigeration unit further comprises a third temperature detector mounted on the cold source storage and close to the liquid inlet of the cold source storage, and a fourth temperature detector mounted on the cold source storage and close to the liquid outlet of the cold source storage.

In one embodiment, the refrigeration unit further comprises a temperature measurer mounted on the heat sink.

In one embodiment, the heat exchange unit comprises a heat exchanger installed between the power pump and the second communication valve, one end of the heat exchanger is communicated with the power pump, and the other end of the heat exchanger is communicated with the second communication valve.

In one embodiment, the heat exchange unit further comprises an air source heat pump mounted between the power pump and the heat exchanger; one end of the air source heat pump is communicated with the power heat pump, and the other end of the air source heat pump is communicated with the heat exchanger.

One or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

the energy supply system that this application embodiment provided has: compared with the prior art, the heat exchange unit has the advantages that the heat transfer medium stored in the heating unit can be heated by the power pump and then conveyed to the heat exchange unit through the conveying pipe, so that heat supply is realized; the heat transfer medium stored in the refrigerating unit can be cooled and then conveyed to the heat exchange unit through the conveying pipe, and cooling is achieved. Therefore, the energy supply system can respectively store a heat source and a cold source through the heating unit and the refrigerating unit, so that energy storage is realized, cross-season utilization is realized, the consumption of energy such as electric energy and fossil is low, and the effects of energy conservation and environmental protection are achieved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an energy supply system provided in an embodiment of the present application.

Wherein, in the drawings, the reference numerals are mainly as follows:

1-a heating unit; 11-a heat collector; 111-a temperature detector; 112-a first pressure relief valve; 12-heat source storage; 121-a first temperature detector; 122-a second temperature detector; 123-a second pressure relief valve; 13-a first control pump; 14-a first three-way valve; 15-a second three-way valve; 16-a first connecting valve;

2-a refrigeration unit; 21-a heat sink; 211-temperature measurer; 22-cold source storage; 221-a third temperature detector; 222-a fourth temperature detector; 23-a second control pump; 24-a third three-way valve; 25-a fourth three-way valve; 26-a second connecting valve;

3-a heat exchange unit; 31-a heat exchanger; 32-air source heat pump;

4-a conveying pipe; 5-a first communication valve; 6-a second communication valve; 7-power pump.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present application, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1, the power supply system provided by the present application will now be described. The energy supply system comprises a heating unit 1 for heating and storing a heat transfer medium, a refrigerating unit 2 for cooling and storing the heat transfer medium, a conveying pipe 4 for conveying the heat transfer medium, a power pump 7 and a heat exchange unit 3 which are respectively arranged on the conveying pipe 4, a first communication valve 5 and a second communication valve 6. The first communication valve 5 and the second communication valve 6 may be three-way valves, which is not limited herein. The liquid outlet of the heating unit 1 is communicated with one end of a first communicating valve 5, the liquid outlet of the refrigerating unit 2 is communicated with the other end of the first communicating valve 5, the other end of the first communicating valve 5 is communicated with the inlet of a power pump 7, the outlet of the power pump 7 is communicated with one end of a heat exchange unit 3, the other end of the heat exchange unit 3 is communicated with one end of a second communicating valve 6, the other end of the second communicating valve 6 is communicated with the liquid inlet of the heating unit 1, and the other end of the second communicating valve 6 is communicated with the liquid inlet of the refrigerating unit 2. The heating unit 1, the refrigerating unit 2, the heat exchange unit 3, the conveying pipe 4, the first communicating valve 5, the second communicating valve 6 and the power pump 7 are communicated through pipelines.

When in heat supply, the heating unit 1, the power pump 7 and the heat exchange unit 3 are communicated through the first communication valve 5 and the second communication valve 6 and are disconnected with the refrigerating unit 2, and at the moment, heat transfer media in the heating unit 1 are heated and then supply heat to the outside through the heat exchange unit 3. Similarly, during cooling, the refrigeration unit 2, the power pump 7 and the heat exchange unit 3 are communicated through the first communication valve 5 and the second communication valve 6 and are disconnected from the heating unit 1, and at the moment, the heat transfer medium in the refrigeration unit 2 is cooled and then is cooled outwards through the heat exchange unit 3.

According to the energy supply system, the heat transfer medium stored in the heating unit 1 can be heated through the power pump 7 and then conveyed to the heat exchange unit 3 through the conveying pipe 4, so that heat supply is realized; the heat transfer medium stored in the refrigerating unit 2 can be cooled and then delivered to the heat exchange unit 3 through the delivery pipe 4, thereby realizing cooling. Therefore, the energy supply system can respectively store a heat source and a cold source through the heating unit 1 and the refrigerating unit 2, so that energy storage is realized, cross-season utilization is realized, the consumption of energy such as electric energy and fossil is low, and the effects of energy conservation and environmental protection are achieved.

In one embodiment, referring to fig. 1, as a specific implementation of the energy supply system provided by the present application, the heating unit 1 includes at least one heat collector 11 storing a heat transfer medium, at least one heat source storage 12 storing a heat source, a first control pump 13 for delivering the heat transfer medium in the heat collector 11 to the heat source storage 12, a first three-way valve 14, and a second three-way valve 15. The liquid outlet of the heat collector 11 is communicated with the inlet of a first control pump 13, the outlet of the first control pump 13 is communicated with one end of a first three-way valve 14, the other end of the first three-way valve 14 is communicated with the liquid inlet of a heat source storage 12, and the other end of the first three-way valve 14 is communicated with a second communication valve 6. A liquid outlet of the heat source storage 12 is communicated with one end of a second three-way valve 15, the other end of the second three-way valve 15 is communicated with a liquid inlet of the heat collector 11, and the other end of the second three-way valve 15 is communicated with the first communication valve 5. The heat collector 11, the heat source storage 12, the first control pump 13, the first three-way valve 14, the second three-way valve 15, the first communicating valve 5 and the second communicating valve 6 are communicated through pipelines. With the structure, the heat collector 11 can collect external heat sources such as solar energy and the like, heat transfer media are heated and then conveyed to the heat source storage 12 through the first control pump 13, the phase change heat storage materials are arranged in the heat source storage 12, the heat transfer media heat the phase change heat storage materials, and the phase change heat storage materials store heat to form heat sources. Wherein, the heat collector 11 can be a vacuum tube type solar heat collector or a flat plate type solar heat collector, etc.; the number of the heat collectors 11 may be one, two or more, and the heat collectors 11 may be connected in series or in parallel, which is not limited herein. The number of the heat source storages 12 may be one, two or more, and the heat source storages 12 are connected in series or in parallel through the first connection valve 16; the first connecting valve 16 may be a two-way valve, which is not limited herein. The heat transfer medium in the heat collector 11 is used at a temperature ranging from-30 ℃ to 120 ℃. The phase change heat storage materials in the heat source storage 12 can be stacked, and are arranged at intervals in the longitudinal direction to allow the heat transfer medium to circulate, so that the phase change heat storage materials can be charged and discharged. The temperature of the phase-change heat storage material can be 40-80 ℃; the heat source storage 12 has a heat insulating function, and may be installed on the ground or underground.

In one embodiment, referring to fig. 1, as an embodiment of the energy supply system provided by the present application, the heating unit 1 further includes a first temperature detector 121 installed on the heat source storage 12 and near the inlet of the heat source storage 12, and a second temperature detector 122 installed on the heat source storage 12 and near the outlet of the heat source storage 12. In this configuration, the first temperature detector 121 is disposed between the first three-way valve 14 and the inlet of the heat source storage 12, and the second temperature detector 122 is disposed between the outlet of the heat source storage 12 and the second three-way valve 15. In the process that the heat transfer medium in the heat collector 11 transfers heat to the phase-change heat storage material in the heat source storage 12, when the difference between the temperature measured by the first temperature detector 121 and the temperature measured by the second temperature detector 122 is within a certain range, heat storage is considered to be completed, and the heat collection process is effectively controlled.

In an embodiment, referring to fig. 1, as an embodiment of the energy supply system provided by the present application, the heating unit 1 further includes a temperature detector 111 and a first pressure relief valve 112 respectively mounted on the heat collector 11. With this configuration, the temperature detector 111 can monitor the temperature of the heat transfer medium inside the heat collector 11 in real time. When the temperature of the heat transfer medium is too high and the internal pressure of the heat collector 11 is too high, the internal pressure of the heat collector 11 can be adjusted through the first pressure relief valve 112, so that the heat collector 11 is prevented from being damaged when the pressure is too high.

In one embodiment, referring to fig. 1, as a specific implementation of the energy supply system provided by the present application, the heating unit 1 further includes a second pressure relief valve 123 installed on the heat source storage 12. With the structure, when the temperature in the heat source storage 12 is too high and the pressure is too high, the internal pressure of the heat source storage 12 can be adjusted through the second pressure release valve 123, so that the heat source storage 12 is prevented from being damaged when the pressure is too high. A thermometer may be provided in the heat source storage 12, and the internal temperature of the heat source storage 12 may be monitored in real time.

In one embodiment, referring to fig. 1, as a specific implementation of the power supply system provided by the present application, the refrigeration unit 2 includes at least one heat sink 21 storing a heat transfer medium, at least one cold source storage 22 storing a cold source, a second control pump 23 for delivering the heat transfer medium in the heat sink 21 to the cold source storage 22, a third three-way valve 24, and a fourth three-way valve 25. A liquid outlet of the radiator 21 is communicated with an inlet of a second control pump 23, an outlet of the second control pump 23 is communicated with one end of a third three-way valve 24, the other end of the third three-way valve 24 is communicated with a liquid inlet of the cold source storage 22, and the other end of the third three-way valve 24 is communicated with a second communication valve 6; a liquid outlet of the cold source storage 22 is communicated with one end of a fourth three-way valve 25, the other end of the fourth three-way valve 25 is communicated with a liquid inlet of the radiator 21, and the other end of the fourth three-way valve 25 is communicated with the first communication valve 5. The radiator 21, the cold source storage 22, the second control pump 23, the third three-way valve 24, and the fourth three-way valve 25 are communicated with each other through pipes.

The heat sink 21 may be a fin type heat sink; the number of the radiators 21 may be one, two, or more than two, the radiators 21 are connected in series or in parallel through the second connection valve 26, and the second connection valve 26 may be a two-way valve, which is not limited herein. The use temperature of the heat transfer medium in the radiator 21 is-30 ℃ to 120 ℃, the steam pressure of the heat transfer medium is low, and the heat transfer medium has no corrosion to a conveying and storing device and no risk of freezing and blocking. The cold source storage 22 is provided with a low-temperature phase change cold storage material, so that the cold storage can be stacked, and the cold storage material is arranged at intervals in the longitudinal direction to allow a heat transfer medium to circulate, so that cold charging and cold discharging of the phase change cold storage material are realized. The temperature of the phase-change cold storage material can be 6-10 ℃; the cold source storage 22 has a heat preservation and insulation function, and can be arranged on the ground or underground. When the cold source storage 22 is arranged on the ground, it needs to be placed at a position for shading the sun, so as to reduce the consumption of the cold source.

In one embodiment, referring to fig. 1, as an embodiment of the power supply system provided by the present application, the refrigeration unit 2 further includes a third temperature detector 221 installed on the cold source storage 22 and near the inlet of the cold source storage 22, and a fourth temperature detector 222 installed on the cold source storage 22 and near the outlet of the cold source storage 22. In this structure, the third temperature detector 221 is disposed between the third three-way valve 24 and the inlet of the cold source storage 22, and the fourth temperature detector 222 is disposed between the outlet of the cold source storage 22 and the fourth three-way valve 25. When the temperature difference between the temperature measured by the third temperature detector 221 and the temperature measured by the fourth temperature detector 222 is within a certain range, the cold storage is considered to be completed, and the cold collection process is effectively controlled.

In one embodiment, referring to fig. 1, as a specific implementation of the energy supply system provided by the present application, the refrigeration unit 2 further includes a temperature measurer 211 mounted on the heat sink 21. With this structure, the temperature measuring device 211 can monitor the ambient temperature, and when the ambient temperature detected by the temperature measuring device 211 is lower than a certain value, the cooling unit 2 works to realize the cooling operation.

In one embodiment, referring to fig. 1, as a specific implementation of the energy supply system provided by the present application, the heat exchange unit 3 includes a heat exchanger 31 installed between the power pump 7 and the second communication valve 6, one end of the heat exchanger 31 is communicated with the power pump 7, and the other end of the heat exchanger 31 is communicated with the second communication valve 6. With this structure, the heat exchanger 31 can exchange heat with the outside to realize heating or cooling. The number of the heat exchangers 31 can be adjusted according to actual needs to increase the application range of the energy supply system, and is not limited herein.

In one embodiment, referring to fig. 1, as a specific implementation of the energy supply system provided by the present application, the heat exchange unit 3 further includes an air source heat pump 32 installed between the power pump 7 and the heat exchanger 31; one end of the air source heat pump 32 is communicated with the power pump 7, and the other end of the air source heat pump 32 is communicated with the heat exchanger 31. With the structure, the air source heat pump 32 can be used as an auxiliary heating or cooling device to meet the required temperature requirement when the heating or cooling temperature of the energy supply system is not reached, thereby improving the application performance of the energy supply system.

The energy supply system provided by the application can further comprise a temperature control system, and each temperature measuring point in the energy supply system can be monitored in real time, so that the running condition of the energy supply system can be controlled.

The specific operation steps of the energy supply system of the application are as follows:

(1) heat storage and release process of heating unit 1

During heat storage: the heat collector 11 absorbs solar energy, converts the solar energy into heat energy, continuously heats the heat transfer medium, when the heat transfer medium reaches a certain temperature, the first control pump 13 is started, the ab valve of the first three-way valve 14 is communicated, the first connecting valve 16 is opened, the ab valve of the second three-way valve 15 is communicated, and the heat transfer medium transfers the heat energy to the phase-change heat storage material and stores the heat energy. When the temperature difference between the first temperature detector 121 and the second temperature detector 122 is within a certain range, it indicates that heat storage is completed.

When heat is released: the power pump 7 is started, at the moment, the ac valve of the first three-way valve 14 is communicated, the first connecting valve 16 is opened, the ac valve of the second three-way valve 15 is communicated, the ab valve of the first connecting valve 5 is communicated, the ab valve of the second connecting valve 6 is communicated, and a heat source in the phase-change heat storage material is transferred to the heat exchange unit 3 to realize heat supply.

(2) Cold storage and discharge process of refrigerating unit 2

During cold storage: when the temperature measurer 211 detects that the outdoor temperature is lower than a certain temperature value, the second control pump 23 is started, the ab valve of the third three-way valve 24 is communicated, the second connecting valve 26 is opened, the ac valve of the fourth three-way valve 25 is communicated, and the heat transfer medium is cooled by the radiator 21 and then transfers the cold energy to the phase-change cold storage material and stores the cold energy to form a cold source. When the temperature difference between the third temperature detector 221 and the fourth temperature detector 222 is within a certain range, it indicates that the cold storage is completed.

When the material is cooled: the power pump 7 is started, at the moment, the bc valve of the third three-way valve 24 is communicated, the second connecting valve 26 is opened, the ab valve of the fourth three-way valve 25 is communicated, the ac valve of the first connecting valve 5 is communicated, the ac valve of the second connecting valve 6 is communicated, and a cold source in the phase-change cold storage material is transferred to the heat exchange unit 3 through the heat transfer medium to realize cold supply.

The energy supply system provided by the application at least comprises the following beneficial effects:

1. the purposes of cross-season heat storage, cold storage, heat supply and cold supply are realized, fossil energy can be greatly saved, and the effects of energy conservation and environmental protection are achieved;

2. the heat storage and the cold storage are realized through the phase-change heat storage material or the phase-change cold storage material, the energy storage density of the phase-change material is large, the space can be greatly saved, the overall volume of an energy supply system is reduced, and the occupied space is small;

3. realize unit modularization setting, be convenient for install and maintain, reduce later maintenance use cost.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An energy supply system, comprising:

a heating unit for storing and heating a heat transfer medium;

a refrigerating unit for storing and cooling the heat transfer medium;

a delivery pipe for delivering the heat transfer medium;

2. The power supply system of claim 1, wherein the heating unit comprises:

a heat source storage for storing a heat source;

3. The power supply system of claim 2, wherein: the heating unit also comprises a first temperature detector which is arranged on the heat source storage and is close to the liquid inlet of the heat source storage and a second temperature detector which is arranged on the heat source storage and is close to the liquid outlet of the heat source storage.

4. The power supply system of claim 2, wherein: the heating unit further comprises a temperature detector and a first pressure release valve which are respectively arranged on the heat collector.

5. The power supply system of claim 2, wherein: the heating unit further includes a second pressure relief valve installed on the heat source storage.

6. The power supply system of claim 1, wherein the refrigeration unit comprises:

the cold source storage is used for storing a cold source;

7. The power supply system of claim 6, wherein: the refrigerating unit also comprises a third temperature detector which is arranged on the cold source storage and is close to the liquid inlet of the cold source storage and a fourth temperature detector which is arranged on the cold source storage and is close to the liquid outlet of the cold source storage.

8. The power supply system of claim 6, wherein: the refrigeration unit also includes a temperature measurer mounted on the heat sink.

9. The energy supply system of any one of claims 1 to 8, wherein: the heat exchange unit comprises a heat exchanger arranged between the power pump and the second communicating valve, one end of the heat exchanger is communicated with the power pump, and the other end of the heat exchanger is communicated with the second communicating valve.

10. The power supply system of claim 9, wherein: the heat exchange unit further comprises an air source heat pump arranged between the power pump and the heat exchanger; one end of the air source heat pump is communicated with the power heat pump, and the other end of the air source heat pump is communicated with the heat exchanger.