Comprehensive energy supply system for coupling waste space stored energy with solar energy

Abstract

The invention belongs to the technical field of energy storage systems, and relates to a waste space energy storage and solar energy coupling comprehensive energy supply system which comprises an underground reservoir, an overground reservoir, a pumped storage and power generation unit, a solar photovoltaic panel, a heat storage water tank, a refrigerating and heating unit, a power storage unit and an independent refrigerating unit. Electric energy generated by the solar photovoltaic panel and the pumped storage and power generation unit can be supplied to the heat pump and the user side, so that the heat pump can cooperate with the underground reservoir to supply heat and cold to the user side, meanwhile, hot water generated by the solar photovoltaic panel can supply heat and hot water to the user side, and the solar photovoltaic panel can cooperate with the independent refrigeration unit to supply cold to the user side. According to the system, multiple energy supply modes of heating, cooling, power supply and hot water supply are achieved while energy storage is achieved, the utilization efficiency of energy is improved, meanwhile, green power generated through power generation of the solar photovoltaic panel supplies power to all electric equipment in the system, and power production and marketing balance in the system is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage systems and relates to a comprehensive energy supply system that combines abandoned space energy storage with solar energy. Background Art

[0002] Utilizing abandoned mines and subsidence areas (such as coal mining subsidence) as upper and lower reservoirs for pumped-storage power plants is an innovative resource reuse approach that not only addresses ecological restoration issues in abandoned mining areas but also provides infrastructure support for new energy storage. For example, a closed coal mine was used to construct a 100MW pumped-storage power plant, with the upper reservoir located in a surface subsidence pit and the lower reservoir in an underground tunnel. Another example involves the conversion of a decommissioned coal mine into a 200MW pumped-storage power plant to serve renewable energy peak load regulation. Another example involves the conversion of a limestone mine into a pumped-storage facility.

[0003] At present, the existing abandoned mines and ground subsidence areas are mainly utilized for energy storage, which has a relatively single function, resulting in low energy utilization efficiency and affecting the sustainable development of abandoned mines and ground subsidence areas. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated energy supply system that combines abandoned space energy storage with solar energy, which can store energy while providing energy in multiple ways, thereby improving energy utilization efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: A comprehensive energy supply system for abandoned space energy storage coupled with solar energy includes an underground reservoir and an above-ground reservoir, wherein the underground reservoir and the above-ground reservoir are connected to a power generation unit via pumped storage, and further includes: A solar photovoltaic panel is used to generate electricity through solar energy. A heat conducting component is provided on the solar photovoltaic panel.

[0006] The heat storage tank is connected to the solar photovoltaic panel and the user side respectively. The heat storage tank is used to store water. The water in the heat storage tank enters the heat conduction component and is heated by the waste heat of the solar photovoltaic panel to become hot water to supply hot water to the user side.

[0007] The cooling and heating unit includes a heat pump, which is connected to the underground water reservoir and the user side respectively. The heat pump is used to use the underground water reservoir as the water source for the heat pump. When heating, the heat pump absorbs heat from the water source and provides heating to the user side after lifting. When cooling, the heat pump absorbs heat from the user side and discharges it into the water source to achieve cooling.

[0008] The power storage unit is electrically connected to the solar photovoltaic panel, the pumped storage and power generation unit, the heat pump, and the user side. The power storage unit is used to store the electric energy generated by the solar photovoltaic panel, the pumped storage and power generation unit, and to supply power to the pumped storage and power generation unit, the heat pump, and the user side.

[0009] The separate refrigeration unit is connected to the hot water storage tank and the user side respectively. The separate refrigeration unit is used to use the hot water from the hot water storage tank to drive refrigeration and supply cold air to the user side.

[0010] The present invention is also characterized in that: The separate refrigeration unit includes: The lithium bromide refrigeration unit has an inlet connected to the first outlet of the hot water storage tank, and the first outlet of the lithium bromide refrigeration unit is connected to the first inlet of the hot water storage tank. The lithium bromide refrigeration unit is used to convert the hot water in the hot water storage tank into cold energy.

[0011] The air-conditioning system has an inlet connected to the second outlet of the lithium bromide refrigeration unit, and the outlet of the air-conditioning system is connected to the user side. The air-conditioning system is used to transport the cooling energy generated by the lithium bromide refrigeration unit to the user side.

[0012] A heat exchanger is arranged between the hot water storage tank and the underground water reservoir, the second outlet of the hot water storage tank is connected to the first inlet of the heat exchanger, the second inlet of the hot water storage tank is connected to the first outlet of the heat exchanger, a first water pump is arranged between the underground water reservoir and the heat exchanger, the first outlet of the underground reservoir is connected to the inlet of the first water pump, the outlet of the first water pump is connected to the second inlet of the heat exchanger, the first inlet of the underground reservoir is connected to the first outlet of the heat pump, the first inlet of the heat pump is connected to the second outlet of the heat exchanger, the second outlet of the heat pump is connected to the user side through the second water pump, and the second inlet of the heat pump is connected to the user side through the third water pump.

[0013] The first water pump outlet is connected to the first inlet of the heat pump.

[0014] The pumped storage and power generation units include: The inlet of the fourth water pump is connected to the second outlet of the underground water reservoir, the outlet of the fourth water pump is connected to the inlet of the above-ground water reservoir, the fourth water pump is electrically connected to the power storage unit, and power is supplied to the fourth water pump through the power storage unit.

[0015] The turbine has an inlet connected to the outlet of the above-ground reservoir, and the outlet of the turbine is connected to the second inlet of the underground reservoir. The turbine is connected to a generator, which is electrically connected to the power storage unit. The turbine drives the generator to generate electricity and stores the generated electrical energy in the power storage unit.

[0016] A fifth water pump is arranged between the hot water storage tank and the solar photovoltaic panel, the inlet of the fifth water pump is connected to the third outlet of the hot water storage tank, the outlet of the fifth water pump is connected to the inlet of the heat conducting component, the outlet of the heat conducting component is connected to the third inlet of the hot water storage tank, a sixth water pump is arranged between the hot water storage tank and the user side, the inlet of the sixth water pump is connected to the fourth outlet of the hot water storage tank, and the outlet of the sixth water pump is connected to the user side.

[0017] The storage unit includes: The storage battery is electrically connected to the solar photovoltaic panel, the heat pump, the first water pump, the second water pump, the third water pump, the fourth water pump, the fifth water pump, and the sixth water pump respectively.

[0018] It also includes external power, which is electrically connected to the battery and the fourth water pump respectively.

[0019] The integrated energy supply system of the present invention, which combines abandoned space energy storage with solar energy, has the following advantages: First, the present invention can supply the electric energy generated by the solar photovoltaic panels, pumped storage and power generation units to the heat pump and the user side through the cooperation of the underground water reservoir, the ground water reservoir, the solar photovoltaic panels, the heat storage tank, the cooling and heating unit, the power storage unit and the separate cooling unit, so that the heat pump can cooperate with the underground water reservoir to provide heating and cooling to the user side. At the same time, the hot water generated by the solar photovoltaic panels can provide heating and hot water to the user side, and cooperate with the separate cooling unit to provide cooling to the user side, realizing the energy storage and multiple modes of energy supply for heating, cooling, electricity and hot water at the same time, improving the energy utilization efficiency and ensuring the sustainable development of abandoned mines and ground subsidence areas.

[0020] Second, the underground water reservoir in the present invention can be used as both a carrier for pumped storage and a carrier for heat pump cooling and heating, thereby avoiding redundant design, saving construction investment, and improving space and energy utilization.

[0021] Third, the green electricity generated by solar photovoltaic panels is used to power various electrical equipment in the system, achieving a balance between electricity production and sales within the system and realizing zero carbon emissions. At the same time, pumped storage electricity stores valley-price electricity at night and releases it during peak times to achieve low-cost electricity supply to the community. In addition, when there is a large amount of green electricity output during the transition season, it can also be used to supply electricity to the community.

[0022] Fourth, the present invention realizes the reuse of abandoned spaces such as coal mine goafs and collapse areas by transforming them into surface reservoirs and underground reservoirs, thereby integrating ecological transformation with renewable energy systems and promoting a sustainable energy system with multi-energy supply under multiple working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 Schematic diagram of the structure of the heat pump in the present invention.

[0025] Reference numerals: 1. Underground reservoir; 2. Above-ground reservoir; 3. Compressor; 4. Evaporator; 5. Throttling device; 6. Condenser; 7. Four-way valve; 8. Solar photovoltaic panel; 9. Battery; 10. Hot water storage tank; 11. Temperature sensor; 12. Control valve; 13. First water pump; 14. Lithium bromide refrigeration unit; 15. Turbine; 16. Heat pump; 17. Second water pump; 18. Third water pump; 19. Fourth water pump; 20. Fifth water pump; 21. Heat exchanger; 22. External power; 23. Air conditioning system; 24. Sixth water pump; 25. Seventh water pump. DETAILED DESCRIPTION

[0026] The technical solutions in the present invention will be described clearly and in detail below with reference to the accompanying drawings. In the description of the embodiments of the present invention, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, such as A and / or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present invention, "multiple" refers to two or more than two. The following terms "first" and "second" are used for descriptive purposes only and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0027] like Figure 1As shown, the present invention provides a comprehensive energy supply system for waste space energy storage coupled with solar energy, including an underground water reservoir 1, an above-ground water reservoir 2, a solar photovoltaic panel 8, a hot water storage tank 10, a cooling and heating unit, a power storage unit and a separate cooling unit. The underground water reservoir 1 and the above-ground water reservoir 2 are connected to the power generation unit through pumped storage. The solar photovoltaic panel 8 is used to generate electricity through solar energy. A heat conduction component is provided on the solar photovoltaic panel 8. The hot water storage tank 10 is connected to the solar photovoltaic panel 8 and the user side respectively. The hot water storage tank 10 is used to store water. The water in the hot water storage tank 10 enters the heat conduction component for utilization. The waste heat from the solar photovoltaic panel 8 is heated to become hot water to supply hot water to the user side. The cooling and heating unit includes a heat pump 16. The heat pump 16 is connected to the underground reservoir 1 and the user side respectively. The heat pump 16 is used to use the underground reservoir 1 as a water source for the heat pump 16. When heating, the heat pump 16 absorbs the heat in the water source and supplies heating to the user side after lifting. When cooling, the heat pump 16 absorbs the heat from the user side and discharges it to the water source to achieve cooling. That is, the heat pump 16 realizes reverse cooling through the reverse Carnot cycle. The power storage unit is electrically connected to the solar photovoltaic panel 8, the pumped storage unit and the power generation unit respectively. The power storage unit is connected to the heat pump 16. The pump 16 is electrically connected, and the storage unit is electrically connected to the solar photovoltaic panel 8, the pumped storage and power generation unit, the heat pump 16, and the user side. The storage unit is used to store the electricity generated by the solar photovoltaic panel 8, the pumped storage and power generation unit, and to supply power to the pumped storage and power generation unit, the heat pump 16, and the user side. The separate refrigeration unit is connected to the hot water storage tank 10 and the user side, and the separate refrigeration unit is used to use the hot water from the hot water storage tank 10 to drive refrigeration and supply cold water to the user side. The present invention is achieved by the underground reservoir 1, the ground reservoir 2, the solar photovoltaic panel 8, the hot water storage tank 10 The cooperation of the heat pump 16, the power storage unit and the separate refrigeration unit can supply the electric energy generated by the solar photovoltaic panel 8, the pumped storage and the power generation unit to the heat pump and the user side, so that the heat pump can cooperate with the underground water reservoir 1 to provide heating and cooling to the user side. At the same time, the hot water generated by the solar photovoltaic panel 8 can provide heating and hot water to the user side, and cooperate with the separate refrigeration unit to provide cooling to the user side, realizing the energy storage and multiple modes of energy supply for heating, cooling, electricity and hot water at the same time, improving the energy utilization efficiency and ensuring the sustainable development of abandoned mines and ground subsidence areas.

[0028] Among them, the heat-conducting component includes a silicone heat-conducting layer, which is arranged on the back of the solar photovoltaic panel 8. A heat-conducting pipe is arranged in the silicone heat-conducting layer. The two ends of the heat-conducting pipe are respectively connected to the hot water storage tank 10, which is used to introduce the water in the hot water storage tank 10 into the heat-conducting pipe to absorb the waste heat generated during the power generation process of the solar photovoltaic panel 8, and then send it back to the hot water storage tank 10 for storage.

[0029] like Figure 1As shown, the separate refrigeration unit includes a lithium bromide refrigeration unit 14 and an air-conditioning system 23. The inlet of the lithium bromide refrigeration unit 14 is connected to the first outlet of the hot water storage tank 10, and the first outlet of the lithium bromide refrigeration unit 14 is connected to the first inlet of the hot water storage tank 10. The lithium bromide refrigeration unit 14 is used to convert the hot water in the hot water storage tank 10 into cold energy. The inlet of the air-conditioning system 23 is connected to the second outlet of the lithium bromide refrigeration unit 14, and the outlet of the air-conditioning system 23 is connected to the user side. The air-conditioning system 23 is used to transport the cold energy generated by the lithium bromide refrigeration unit 14 to the user side.

[0030] like Figure 1 As shown, a heat exchanger 21 is provided between the hot water tank 10 and the underground water reservoir 1, the second outlet of the hot water tank 10 is connected to the first inlet of the heat exchanger 21, and the second inlet of the hot water tank 10 is connected to the first outlet of the heat exchanger 21. A first water pump 13 is provided between the underground water reservoir 1 and the heat exchanger 21, the first outlet of the underground water reservoir 1 is connected to the inlet of the first water pump 13, the outlet of the first water pump 13 is connected to the second inlet of the heat exchanger 21, the first inlet of the underground water reservoir 1 is connected to the first outlet of the heat pump 16, the first inlet of the heat pump 16 is connected to the second outlet of the heat exchanger 21, the second outlet of the heat pump 16 is connected to the user side via the second water pump 17, the second inlet of the heat pump 16 is connected to the user side via the third water pump 18, and through the heat exchanger 21, the hot water in the hot water tank 10 and the water in the underground water reservoir 1 can be mixed and then enter the heat pump 16 to provide heating to the user side, thereby improving the quality of heating.

[0031] like Figure 1 As shown, the outlet of the first water pump 13 is connected to the first inlet of the heat pump 16. When cooling is provided in summer, the first water pump 13 is directly connected to the heat pump 16 to supply cooling to the user side through the heat pump 16.

[0032] like Figure 1 As shown, a temperature sensor 11 is provided in the hot water storage tank 10, and the temperature sensor 11 is used to detect the temperature of the hot water in the hot water storage tank 10. An electric auxiliary heater is provided in the hot water storage tank 10, and the electric auxiliary heater is electrically connected to the power storage unit. When the temperature detected by the temperature sensor 11 is low, the electric auxiliary heater is started to heat the water in the hot water storage tank 10.

[0033] like Figure 1As shown, the pumped storage and power generation unit includes a fourth water pump 19 and a turbine 15. The inlet of the fourth water pump 19 is connected to the second outlet of the underground reservoir 1, and the outlet of the fourth water pump 19 is connected to the inlet of the above-ground reservoir 2. The fourth water pump 19 is electrically connected to the power storage unit. Power is supplied to the fourth water pump 19 through the power storage unit, so that the fourth water pump 19 pumps water from the underground reservoir 1 to the above-ground reservoir 2 for pumped storage. The inlet of the turbine 15 is connected to the outlet of the above-ground reservoir 2, and the outlet of the turbine 15 is connected to the second inlet of the underground reservoir 1. The turbine 15 is connected to a generator, which is electrically connected to the power storage unit. The turbine 15 is used to drive the generator to generate electricity and store the generated electrical energy in the power storage unit. That is, the water in the above-ground reservoir 2 enters the turbine 15 and drives the turbine 15 to rotate. The turbine 15 drives the generator to generate electricity and transmits the generated electrical energy to the power storage unit for storage.

[0034] like Figure 1 As shown, a fifth water pump 20 is provided between the hot water tank 10 and the solar photovoltaic panel 8, the inlet of the fifth water pump 20 is connected to the third outlet of the hot water tank 10, the outlet of the fifth water pump 20 is connected to the inlet of the heat pipe, the outlet of the heat pipe is connected to the third inlet of the hot water tank 10, the fifth water pump 20 is started, the water in the hot water tank 10 is transported to the heat pipe, and after being heated, it is transported to the hot water tank 10 for water circulation, and a sixth water pump 24 is provided between the hot water tank 10 and the user side, the inlet of the sixth water pump 24 is connected to the fourth outlet of the hot water tank 10, and the outlet of the sixth water pump 24 is connected to the user side, the sixth water pump 24 is started, and the sixth water pump 24 transports the hot water in the hot water tank 10 to the user side, supplying hot water to the user side.

[0035] like Figure 1 As shown, the inlet of the solar photovoltaic panel 8 is connected to a water source through the seventh water pump 25 , and water is transported into the solar photovoltaic panel 8 through the seventh water pump 25 to replenish the water in the solar photovoltaic panel 8 .

[0036] like Figure 1 As shown, the power storage unit includes a battery 9, which is electrically connected to the solar photovoltaic panel 8, heat pump 16, first water pump 13, second water pump 17, third water pump 18, fourth water pump 19, fifth water pump 20, and sixth water pump 24. Battery 9 powers all electrical devices in the system, achieving self-consistent energy within the system, green electricity supply, and zero carbon emissions.

[0037] like Figure 1 As shown, external power 22 is also included. The external power 22 is electrically connected to the battery 9 and the fourth water pump 19 respectively. When the power consumption is low, the external power is stored in the battery 9 and supplied to the fourth water pump 19 for pumped storage, which is used as a backup and emergency for the system.

[0038] like Figure 2 As shown, the heat pump 16 includes a compressor 3, an evaporator 4, a throttling device 5, a condenser 6 and a four-way valve 7. The first outlet of the evaporator 4 is connected to the inlet of the throttling device 5, and the outlet of the throttling device 5 is connected to the further inlet of the condenser 6. The first outlet of the condenser 6 is connected to the inlet of the compressor 3 through the four-way valve 7, and the outlet of the compressor 3 is connected to the first inlet of the evaporator 4. The second inlet and the second outlet of the evaporator 4 serve as the first inlet and the first outlet of the heat pump 16, and the second inlet and the second outlet of the condenser 6 serve as the second inlet and the second outlet of the heat pump 16.

[0039] like Figure 1 As shown, the second inlet and the second outlet of the hot water storage tank 10 are respectively provided with regulating valves 12 .

[0040] Working principle: 1) In the transition season, hot water is supplied. The hot water generated by the solar photovoltaic panel 8 enters the hot water storage tank 10. After the hot water reaches a predetermined temperature, it is directly supplied to the user side.

[0041] 2) During the heating season, the hot water generated by the solar photovoltaic panels 8 passes through the heat storage tank 10 and then enters the heat exchanger 20, where it is mixed with the water in the ground reservoir 2. After reaching a certain temperature, it is used as a heat source and enters the heat pump 16. After being elevated by the heat pump 16, it is used to provide heating to the user side.

[0042] 3) During the cooling season, cooling is supplied by two sources: the lithium bromide refrigeration unit 14 and the heat pump 16 operating in reverse. After the water in the hot water storage tank 10 is heated to above 90°C, it serves as thermal power to cool the lithium bromide refrigeration unit 14. The cooling energy generated by the lithium bromide refrigeration unit 14 is then delivered to the user via the air conditioning system 23. The heat pump 16, using the underground reservoir 1 as its cold water source, operates in reverse to supply cooling. Note that the water from the underground reservoir does not pass through the heat exchanger 21, but enters through a bypass pipe. Because solar energy is a green energy source, the unit startup sequence prioritizes energy from the solar photovoltaic panels 8.

[0043] 4) In extreme weather or when there is insufficient heat, the electric auxiliary heater is started to make the temperature in the hot water storage tank 10 reach the required temperature before the above process is carried out.

[0044] 5) When the grid is connected and the electricity consumption is low, the external electricity is stored in the battery 9 and supplied to the fourth water pump 19 for pumped storage, which is used as a backup and emergency for the system.

[0045] 6) Solar photovoltaic panels 8 are used to produce, store and use green electricity, which basically covers the power needs within the system and achieves zero carbon emissions. When there is a lot of green electricity, it can be used to supply electricity to the community or store it.

[0046] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present invention are intended to be protected by the present invention.

Claims

1. A comprehensive energy supply system for waste space energy storage coupled with solar energy, comprising an underground reservoir (1) and an above-ground reservoir (2), wherein the underground reservoir (1) and the above-ground reservoir (2) are connected to a power generation unit via pumped storage, and characterized in that: Also includes: A solar photovoltaic panel (8) for generating electricity through solar energy, wherein a heat conducting component is provided on the solar photovoltaic panel (8); A heat storage tank (10) is connected to the heat conducting assembly and the user side, respectively. The heat storage tank (10) is used to store water. The water in the heat storage tank (10) enters the heat conducting assembly and is heated by waste heat from the solar photovoltaic panel (8) to become hot water, which is then supplied to the user side. A cooling and heating unit comprises a heat pump (16), wherein the heat pump (16) is connected to an underground water reservoir (1) and a user side, respectively. The heat pump (16) is used to use the underground water reservoir (1) as a water source for the heat pump (16). When heating, the heat pump (16) absorbs heat from the water source and heats the user side after the heat is lifted. When cooling, the heat pump (16) absorbs heat from the user side and discharges it into the water source to achieve cooling. The power storage unit is electrically connected to the solar photovoltaic panel (8), the pumped storage and power generation unit, the heat pump (16), and the user side, respectively. The power storage unit is used to store the electric energy generated by the solar photovoltaic panel (8) and the pumped storage and power generation unit, and to supply power to the pumped storage and power generation unit, the heat pump (16), and the user side; A separate refrigeration unit is connected to the hot water storage tank (10) and the user side, respectively. The separate refrigeration unit is used to use hot water from the hot water storage tank (10) to drive refrigeration and supply cold air to the user side.

2. The integrated energy supply system of abandoned space energy storage coupled with solar energy according to claim 1 is characterized in that: The separate refrigeration unit comprises: a lithium bromide refrigeration unit (14), the inlet of which is connected to the first outlet of the hot water storage tank (10); the first outlet of the lithium bromide refrigeration unit (14) is connected to the first inlet of the hot water storage tank (10); the lithium bromide refrigeration unit (14) is used to convert hot water in the hot water storage tank (10) into cold energy; The air conditioning system (23) has an inlet connected to the second outlet of the lithium bromide refrigeration unit (14), and the outlet of the air conditioning system (23) is connected to the user side. The air conditioning system (23) is used to transport the cold energy generated by the lithium bromide refrigeration unit (14) to the user side.

3. The integrated energy supply system of abandoned space energy storage coupled with solar energy according to claim 2 is characterized in that: A heat exchanger (21) is provided between the hot water storage tank (10) and the underground water reservoir (1); the second outlet of the hot water storage tank (10) is connected to the first inlet of the heat exchanger (21); the second inlet of the hot water storage tank (10) is connected to the first outlet of the heat exchanger (21); a first water pump (13) is provided between the underground water reservoir (1) and the heat exchanger (21); the first outlet of the underground water reservoir (1) is connected to the inlet of the first water pump (13); the outlet of the first water pump (13) is connected to the second inlet of the heat exchanger (21); the first inlet of the underground water reservoir (1) is connected to the first outlet of the heat pump (16); the first inlet of the heat pump (16) is connected to the second outlet of the heat exchanger (21); the second outlet of the heat pump (16) is connected to the user side via a second water pump (17); and the second inlet of the heat pump (16) is connected to the user side via a third water pump (18).

4. The integrated energy supply system of abandoned space energy storage coupled with solar energy according to claim 3 is characterized in that: The outlet of the first water pump (13) is connected to the first inlet of the heat pump (16).

5. The integrated energy supply system of abandoned space energy storage coupled with solar energy according to claim 3 is characterized in that: The pumped storage and power generation unit comprises: a fourth water pump (19), the inlet of which is connected to the second outlet of the underground water reservoir (1), the outlet of which is connected to the inlet of the above-ground water reservoir (2), the fourth water pump (19) being electrically connected to the power storage unit, and power being supplied to the fourth water pump (19) via the power storage unit; The inlet of the water turbine (15) is connected to the outlet of the above-ground reservoir (2), and the outlet of the water turbine (15) is connected to the second inlet of the underground reservoir (1). The water turbine (15) is connected to a generator, and the generator is electrically connected to the power storage unit. The water turbine (15) drives the generator to generate electricity and stores the generated electrical energy in the power storage unit.

6. The integrated energy supply system of abandoned space energy storage coupled with solar energy according to claim 5 is characterized in that: A fifth water pump (20) is provided between the hot water storage tank (10) and the heat conduction component, the inlet of the fifth water pump (20) is connected to the third outlet of the hot water storage tank (10), the outlet of the fifth water pump (20) is connected to the inlet of the heat conduction component, the outlet of the heat conduction component is connected to the third inlet of the hot water storage tank (10), a sixth water pump (24) is provided between the hot water storage tank (10) and the user side, the inlet of the sixth water pump (24) is connected to the fourth outlet of the hot water storage tank (10), and the outlet of the sixth water pump (24) is connected to the user side.

7. The integrated energy supply system of abandoned space energy storage coupled with solar energy according to claim 5 is characterized in that: The power storage unit includes: The storage battery (9) is electrically connected to the solar photovoltaic panel (8), the heat pump (16), the first water pump (13), the second water pump (17), the third water pump (18), the fourth water pump (19), the fifth water pump (20), and the sixth water pump (24).

8. The integrated energy supply system of abandoned space energy storage coupled with solar energy according to claim 7 is characterized in that: It also includes external power (22), and the external power (22) is electrically connected to the battery (9) and the fourth water pump (19) respectively.

Images