A multi-energy coupled energy storage system
By using a heat exchanger and monitoring device in a multi-energy coupling system, the problem of unstable ground temperature field control was solved, the stable operation of the buried pipe and the efficient use of energy were achieved, and the cooling and heating effect of the system was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING JINGTIAN SMART ENERGY TECH CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-06-30
AI Technical Summary
Existing multi-energy coupling systems cannot accurately control the geothermal field, resulting in unstable cooling or heating effects. During summer heat replenishment, the heat release efficiency of buried pipes decreases and energy is wasted.
A heat exchanger is used to transfer the heat collected by the solar collector to the underground pipe. Combined with the underground temperature field and the underground pipe energy monitoring device, the underground pipe is ensured to operate within a suitable temperature range. In summer, the heat is transferred to the lithium bromide absorption chiller generator to avoid waste.
This ensures stable operation of the buried pipes, improves system efficiency, prevents energy waste, and guarantees the stability of cooling or heating effects.
Smart Images
Figure CN224434734U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building heating and cooling system technology, and in particular to a multi-energy coupled energy storage system. Background Technology
[0002] Geothermal energy refers to renewable energy systems that utilize the Earth's internal heat for power generation, heating, or industrial applications. Common geothermal energy systems mainly include buried pipes and ground-source heat pump units. The buried pipes are located underground and are responsible for heat exchange with the soil, while the ground-source heat pump units are responsible for transporting and converting the heat or cooling energy received by the buried pipes. In winter, the buried pipes absorb heat from the soil to provide heat to the ground-source heat pump, and in summer, they release heat to the soil to provide cooling. However, when the heat absorbed by the buried pipes in winter is consistently higher than the heat released in summer, the soil temperature will gradually decrease, leading to a reduction in system efficiency. For example, in northern my country, winters are cold and long, requiring high levels of heat for heating, while summers are relatively cold and short, resulting in insufficient soil heat replenishment. Therefore, it is necessary to increase soil heat replenishment in summer. Existing technologies include multi-energy coupling systems combining solar collectors, air-source heat pumps, and geothermal energy systems, utilizing solar and air heat sources as high-temperature heat sources in summer to provide additional heat to the buried pipes. However, the supplementary heating effect of existing technologies using solar and air heat sources is not ideal, mainly due to the following problems:
[0003] 1. Existing multi-energy coupling systems cannot precisely control the geothermal field, resulting in unstable overall cooling or heating performance.
[0004] 2. Unstable temperature field control can also lead to excessive increases in underground temperature during the geothermal replenishment process, causing the replenished geothermal energy to be lost outwards, resulting in energy waste.
[0005] 3. Existing multi-energy coupling systems supplement the heat of buried pipes in summer. However, since the buried pipes themselves need to release heat to obtain cooling in summer, the supplemental heating will reduce the operating efficiency of the geothermal energy system in summer. But stopping the use of the solar energy system in summer will result in system waste, creating a dilemma. Utility Model Content
[0006] The purpose of this invention is to provide a multi-energy coupled energy storage system to solve the problems existing in the prior art. It transfers the heat collected by the solar collector to the buried pipe via a heat exchanger, and the buried pipe heats up and releases heat to the surrounding soil. The heat release of the solar collector is controllable; in summer, the heat collected by the solar collector is not transferred to the buried pipe but to the generator of the lithium bromide absorption chiller, thus preventing waste. The geothermal energy subsystem includes an underground temperature field monitoring device, a buried pipe energy monitoring device, and a buried pipe-side energy outlet water temperature monitoring device. These devices can accurately monitor the working status of the buried pipe, ensuring its stable operation. The underground temperature field monitoring device also ensures that the buried pipe is at a suitable temperature during heat release, preventing the waste of supplemental geothermal energy.
[0007] To achieve the above objectives, this utility model provides the following solution:
[0008] This utility model provides a multi-energy coupled energy storage system, including a solar energy subsystem and a geothermal energy subsystem. The solar energy subsystem includes a solar collector, and the geothermal energy subsystem includes a ground source heat pump and a buried pipe. The output end of the solar collector is connected to the first inlet of a supplementary heat exchanger, and the input end of the solar collector is connected to the first outlet of the supplementary heat exchanger. The output end of the ground source side water collector is connected to the second inlet of the supplementary heat exchanger, the input end of the ground source side water distributor is connected to the second outlet of the supplementary heat exchanger, the output end of the ground source side water distributor is connected to the input end of the buried pipe, and the output end of the supplementary heat exchanger is connected to the input end of the ground source side water collector. A connection is provided between the input end of the solar collector and the first outlet of the supplementary heat exchanger. The system includes a solar circulation pump, with a supplementary circulation pump installed between the output end of the ground source side water collector and the second inlet of the supplementary heat exchanger; the geothermal energy subsystem also includes an underground temperature field monitoring device, a buried pipe energy monitoring device, and a buried pipe side energy outlet water temperature monitoring device. The underground temperature field monitoring device is connected to the buried pipe, and the buried pipe energy monitoring device and the buried pipe side energy outlet water temperature monitoring device are located at the output end connected to the ground source side water collector; it also includes a refrigeration subsystem, which includes a lithium bromide absorption chiller. The lithium bromide absorption chiller includes a generator, and the output end of the solar collector is connected to the input end of the generator.
[0009] In one embodiment, the ground source heat pump includes a condenser and an evaporator. The output end of the condenser is connected to the return liquid end of the constant pressure water supply system, and the output end of the condenser is connected to the first output port of the constant pressure water supply system. The output end of the evaporator is connected to the input end of the ground source side water distributor, and the input end of the evaporator is connected to the output end of the ground source side water collector. A ground source heat pump circulation pump is provided between the output end of the condenser and the first output port of the constant pressure water supply system, and a buried pipe heat exchange circulation pump is provided between the input end of the evaporator and the output end of the ground source side water collector.
[0010] In one embodiment, the output end of the condenser is connected to the input end of the first valve and the input end of the eighth valve, respectively. The output end of the first valve is connected to the input end of the second valve and the return end of the constant pressure water replenishment system, respectively. The output end of the second valve is connected to the input end of the seventh valve. The output ends of the eighth valve and the seventh valve are connected to the input end of the ground source side water distributor through the same pipe. The output end of the evaporator is connected to the output end of the second valve and the input end of the seventh valve, respectively. The input end of the condenser is connected to the input end of the third valve and the output end of the sixth valve, respectively. The input end of the third valve is connected to the output end of the ground source heat pump circulation pump and the output end of the fourth valve, respectively. The input end of the fourth valve is connected to the output end of the fifth valve, respectively. The input ends of the fifth valve and the sixth valve are connected to the output end of the ground source side water collector through the same pipe, respectively. The input end of the evaporator is connected to the input end of the fourth valve and the output end of the fifth valve, respectively.
[0011] In one embodiment, the output end of the ground source side water distributor is connected to the input end of the main output pipe, the output end of the main output pipe is connected to the input ends of the first and second output branch pipes, the first and second output branch pipes are arranged in parallel, the output end of the first output branch pipe is connected to the second inlet of the heat exchanger, the output end of the second output branch pipe is connected to the input end of the ground source heat pump, the heat exchanger circulation pump is installed on the first output branch pipe, and the buried pipe heat exchanger circulation pump is installed on the second branch pipe; the buried pipe energy monitoring device and the buried pipe side energy outlet water temperature monitoring device are sequentially installed on the main output pipe.
[0012] In one embodiment, the second output port of the constant pressure water replenishment system is connected to the output end of the output main pipe.
[0013] In one embodiment, the system further includes an air source heat pump subsystem, which includes an air source heat pump. The output end of the air source heat pump is connected to the return end of the constant pressure water replenishment system, and the input end of the air source heat pump is connected to the first output port. An air source heat pump circulation pump is provided between the input end of the air source heat pump and the first output port.
[0014] In one embodiment, the lithium bromide absorption chiller further includes a refrigeration condenser and a refrigeration evaporator, with the heat exchange side of the generator and the heat exchange side of the refrigeration evaporator in contact.
[0015] In one embodiment, the refrigeration subsystem further includes a cooling tower, the output end of the refrigeration condenser is connected to the input end of the cooling tower, the output end of the cooling tower is connected to a condensation circulation pump, the condensation circulation pump is connected to the input end of the refrigeration condenser, the input end of the refrigeration evaporator is connected to the first output port, and the output end of the refrigeration evaporator is connected to the return liquid end of the constant pressure water replenishment system.
[0016] In one embodiment, the system further includes a constant pressure liquid replenishment system, the output of which is connected to the input of the solar collector.
[0017] In one embodiment, the constant pressure replenishment subsystem is equipped with a temperature sensor.
[0018] The present invention achieves the following technical advantages over the prior art:
[0019] This utility model provides a multi-energy coupled energy storage system that transfers heat collected by solar collectors to buried pipes via a heat exchanger. The buried pipes then heat up and release heat into the surrounding soil, thus supplementing the geothermal source. The heat release from the solar collectors during the supplementary heating process is controllable. In summer, when heat release to the buried pipes is not required, the heat collected by the solar collectors is not transferred to the buried pipes but instead to the generator of a lithium bromide absorption chiller, preventing waste. The geothermal energy subsystem includes an underground temperature field monitoring device, a buried pipe energy monitoring device, and a buried pipe-side energy outlet water temperature monitoring device. These devices accurately monitor the working status of the buried pipes, ensuring their stable operation. The underground temperature field monitoring device also ensures that the buried pipes are at a suitable temperature during heat release, preventing the waste of supplemented geothermal energy. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of a combined structure in an embodiment of the present utility model;
[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0023] The components include: 1. Solar collector; 2. Ground source heat pump; 3. Buried pipe; 4. Heat exchanger; 5. Ground source side water collector; 6. Solar circulation pump; 7. Heat exchanger circulation pump; 8. Underground temperature field monitoring device; 9. Buried pipe energy monitoring device; 10. Buried pipe side energy outlet water temperature monitoring device; 11. Condenser; 12. Evaporator; 13. Constant pressure water replenishment system; 14. First outlet; 15. Buried pipe heat exchange circulation pump; 16. First valve; 17. Eighth valve. 18. Second valve; 19. Seventh valve; 20. Third valve; 21. Sixth valve; 22. Fifth valve; 23. Second outlet; 24. Air source heat pump; 25. Air source heat pump circulation pump; 26. Lithium bromide absorption chiller; 27. Generator; 28. Refrigeration condenser; 29. Refrigeration evaporator; 30. Cooling tower; 31. Condensation circulation pump; 32. Constant pressure liquid replenishment subsystem; 33. Ground source heat pump circulation pump; 34. Fourth valve; 35. Ground source side water distributor. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the implementation of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are merely for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Therefore, features specified with "first," "second," etc., may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more.
[0026] It should also be noted that in the embodiments of this application, the same reference numerals are used to denote the same component or the same part.
[0027] The purpose of this invention is to provide a multi-energy coupled energy storage system to solve the problems existing in the prior art. It transfers the heat collected by the solar collector to the buried pipe via a heat exchanger, and the buried pipe heats up and releases heat to the surrounding soil. The heat release of the solar collector is controllable; in summer, the heat collected by the solar collector is not transferred to the buried pipe but to the generator of the lithium bromide absorption chiller, thus preventing waste. The geothermal energy subsystem includes an underground temperature field monitoring device, a buried pipe energy monitoring device, and a buried pipe-side energy outlet water temperature monitoring device. These devices can accurately monitor the working status of the buried pipe, ensuring its stable operation. The underground temperature field monitoring device also ensures that the buried pipe is at a suitable temperature during heat release, preventing the waste of supplemental geothermal energy.
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0029] like Figure 1 and Figure 2As shown, this utility model provides a multi-energy coupled energy storage system, including a solar energy subsystem and a geothermal energy subsystem. The solar energy subsystem includes a solar collector 1, and the geothermal energy subsystem includes a ground source heat pump 2 and a buried pipe 3.
[0030] The output end of the solar collector 1 is connected to the first inlet of the supplementary heat exchanger 4, the input end of the solar collector 1 is connected to the first outlet of the supplementary heat exchanger 4, the output end of the ground source side water collector 5 is connected to the second inlet of the supplementary heat exchanger 4, the input end of the ground source side water distributor 35 is connected to the second outlet of the supplementary heat exchanger 4, the output end of the ground source side water distributor 35 is connected to the input end of the buried pipe 3, the output end of the supplementary heat exchanger 4 is connected to the input end of the ground source side water collector 5, a solar circulation pump 6 is installed between the input end of the solar collector 1 and the first outlet of the supplementary heat exchanger 4, and a supplementary heat circulation pump 7 is installed between the output end of the ground source side water collector 5 and the second inlet of the supplementary heat exchanger 4.
[0031] The geothermal energy subsystem also includes an underground temperature field monitoring device 8, an underground pipe energy monitoring device 9, and an underground pipe side energy outlet water temperature monitoring device 10. The underground temperature field monitoring device 8 is connected to the underground pipe 3, and the underground pipe energy monitoring device 9 and the underground pipe side energy outlet water temperature monitoring device 10 are located at the output end of the water collector 5 connected to the ground source side.
[0032] This utility model also includes a refrigeration subsystem, which includes a lithium bromide absorption chiller 26. The lithium bromide absorption chiller 26 includes a generator 27. The output end of the solar collector 1 is connected to the input end of the generator 27, and the output end of the generator 27 is connected to the input end of the solar collector 1.
[0033] Working principle:
[0034] The buried pipe 3 is installed in the ground. In summer and other high-temperature periods, the buried pipe 3 provides cooling to the ground source heat pump 2. Specifically, it releases heat to the ground to cool it down and obtain a low-temperature heat exchange medium. Then, it exchanges heat with the ground source heat pump 2, causing the high-temperature heat exchange medium in the ground source heat pump 2 to transform into a low-temperature heat exchange medium. Then, the ground source heat pump 2 absorbs heat from the external environment to achieve cooling. In winter and other low-temperature periods, the buried pipe 3 provides heat to the ground source heat pump 2. Specifically, it absorbs heat from the ground to raise its temperature and obtain a high-temperature heat exchange medium. Then, it exchanges heat with the ground source heat pump 2, causing the low-temperature heat exchange medium in the ground source heat pump 2 to transform into a high-temperature heat exchange medium. Then, the ground source heat pump 2 releases heat to achieve heating. Solar collector 1 is a heat collection device that only provides heat, not cooling. In winter and other low-temperature periods, solar collector 1 can provide heat to the buried pipe 3 to assist in heating it. However, in summer and other high-temperature periods, the buried pipe 3 needs to release heat to cool down. If solar collector 1 releases heat to the buried pipe 3 again, it will affect its cooling effect. At this time, solar collector 1 provides heat to the generator 27 of the lithium bromide absorption chiller 26 to drive the generator 27 to work, allowing the lithium bromide absorption chiller 26 to provide auxiliary cooling. The geothermal energy subsystem also includes an underground temperature field monitoring device 8, a buried pipe energy monitoring device 9, and a buried pipe side energy outlet water temperature monitoring device 10, which can accurately monitor the working status of the buried pipe 3 to ensure its stable operation. The underground temperature field monitoring device 8 can also ensure that the buried pipe 3 is at a suitable temperature during heat release, preventing the waste of supplemented geothermal energy. When the number of buried pipes 3 exceeds one, the ground source side water distributor 35 is used to distribute the heat exchange medium to each buried pipe 3, and the ground source side water collector 5 is used to collect the heat exchange medium discharged from the buried pipes 3.
[0035] In one embodiment, the ground source heat pump 2 includes a condenser 11 and an evaporator 12. The output end of the condenser 11 is connected to the return end of the constant pressure water supply system 13, and the output end of the condenser 11 is connected to the first output port 14 of the constant pressure water supply system 13. The output end of the evaporator 12 is connected to the input end of the ground source side water distributor 35, and the input end of the evaporator 12 is connected to the output end of the ground source side water collector 5. A ground source heat pump circulation pump 33 is installed between the output end of the condenser 11 and the first output port 14 of the constant pressure water supply system 13, and a buried pipe heat exchange circulation pump 15 is installed between the input end of the evaporator 12 and the output end of the ground source side water collector 5. The constant pressure water supply system 13 is used to supply and recover ultrapure water as the heat exchange medium, realizing the recycling of ultrapure water.
[0036] In one embodiment, the output end of the condenser 11 is connected to the input end of the first valve 16 and the input end of the eighth valve 17, respectively. The output end of the first valve 16 is connected to the input end of the second valve 18 and the return end of the constant pressure water replenishment system 13, respectively. The output end of the second valve 18 is connected to the input end of the seventh valve 19, and the output ends of the eighth valve 17 and the seventh valve 19 are connected to the input end of the ground source side water distributor 35 through the same pipe. The output end of the evaporator 12 is connected to the output end of the second valve 18 and the input end of the seventh valve 19, respectively. The input end of the condenser 11 is connected to the input end of the third valve 20 and the output end of the sixth valve 21, respectively. The input end of the third valve 20 is connected to the output end of the ground source heat pump circulation pump 33 and the output end of the fourth valve 34, respectively. The input end of the fourth valve 34 is connected to the output end of the fifth valve 22, and the input ends of the fifth valve 22 and the sixth valve 21 are connected to the output end of the ground source side water collector 5 through the same pipe. The input end of the evaporator 12 is connected to the input end of the fourth valve 34 and the output end of the fifth valve 22, respectively. During winter and other periods of low temperature, open valves 16, 20, 22, and 19 while closing valves 18, 34, 21, and 17. During summer and other periods of high temperature, open valves 18, 34, 21, and 17 while closing valves 16, 20, 22, and 19.
[0037] In one embodiment, the output end of the ground source side water distributor 35 is connected to the input end of the main output pipe, the output end of the main output pipe is connected to the input end of the first output branch pipe and the input end of the second output branch pipe, the first output branch pipe and the second output branch pipe are arranged in parallel, the output end of the first output branch pipe is connected to the second inlet of the heat exchanger 4, the output end of the second output branch pipe is connected to the input end of the ground source heat pump 2, the heat exchanger 7 is installed on the first output branch pipe, the buried pipe heat exchanger 15 is installed on the second branch pipe, and the buried pipe energy monitoring device 9 and the buried pipe side energy outlet water temperature monitoring device 10 are sequentially installed on the main output pipe.
[0038] In one embodiment, the second output port 23 of the constant pressure water replenishment system 13 is connected to the output end of the output main pipe.
[0039] In one embodiment, the system further includes an air source heat pump subsystem, which includes an air source heat pump 24. The output of the air source heat pump 24 is connected to the return end of the constant pressure water replenishment system 13, and the input of the air source heat pump 24 is connected to a first output port 14. An air source heat pump circulation pump 25 is disposed between the input of the air source heat pump 24 and the first output port 14. The air source heat pump subsystem is used for auxiliary...
[0040] In one embodiment, the lithium bromide absorption chiller 26 further includes a refrigeration condenser 28 and a refrigeration evaporator 29, with the heat exchange side of the generator 27 in contact with the heat exchange side of the refrigeration evaporator 29.
[0041] In one embodiment, the refrigeration subsystem further includes a cooling tower 30, the output end of the refrigeration condenser 28 is connected to the input end of the cooling tower 30, the output end of the cooling tower 30 is connected to a condensation circulation pump 31, the condensation circulation pump 31 is connected to the input end of the refrigeration condenser 28, the input end of the refrigeration evaporator 29 is connected to the first output port 14, and the output end of the refrigeration evaporator 29 is connected to the return end of the constant pressure water replenishment system 13.
[0042] In one embodiment, a constant pressure liquid replenishment system 32 is also included, the output of which is connected to the input of the solar collector 1. The constant pressure liquid replenishment system 32 is used to supply antifreeze to the solar collector 1.
[0043] In one embodiment, the constant pressure liquid replenishment system 32 is equipped with a temperature sensor. The temperature sensor is used to monitor the ambient temperature, and when the ambient temperature is below a threshold, such as -10 degrees Celsius, the constant pressure liquid replenishment system 32 is activated to supply antifreeze to the solar collector 1.
[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to connections within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0045] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).
[0046] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.
[0047] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.
[0048] Any adaptive changes made according to actual needs are within the protection scope of this utility model.
[0049] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0050] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A multi-energy coupling energy storage system, characterized in that: It includes a solar energy subsystem and a geothermal energy subsystem. The solar energy subsystem includes a solar collector (1), and the geothermal energy subsystem includes a ground source heat pump (2) and a buried pipe (3). The output end of the solar collector (1) is connected to the first inlet of the heat exchanger (4), the input end of the solar collector (1) is connected to the first outlet of the heat exchanger (4), the output end of the ground source water collector (5) is connected to the second inlet of the heat exchanger (4), the input end of the ground source water distributor (35) is connected to the second outlet of the heat exchanger (4), the output end of the ground source water distributor (35) is connected to the input end of the buried pipe (3), the output end of the heat exchanger (4) is connected to the input end of the ground source water collector (5), a solar circulation pump (6) is provided between the input end of the solar collector (1) and the first outlet of the heat exchanger (4), and a heat exchange circulation pump (7) is provided between the output end of the ground source water collector (5) and the second inlet of the heat exchanger (4). The geothermal energy subsystem also includes an underground temperature field monitoring device (8), an underground pipe energy monitoring device (9), and an underground pipe side energy outlet water temperature monitoring device (10). The underground temperature field monitoring device (8) is connected to the underground pipe (3), and the underground pipe energy monitoring device (9) and the underground pipe side energy outlet water temperature monitoring device (10) are located at the output end of the ground source side water collector (5). It also includes a refrigeration subsystem, which includes a lithium bromide absorption chiller (26), the lithium bromide absorption chiller (26) includes a generator (27), the output end of the solar collector (1) is connected to the input end of the generator (27), and the output end of the generator (27) is connected to the input end of the solar collector (1).
2. The multi-energy coupled energy storage system according to claim 1, characterized in that: The ground source heat pump (2) includes a condenser (11) and an evaporator (12). The output end of the condenser (11) is connected to the return end of the constant pressure water supply system (13). The output end of the condenser (11) is connected to the first output port (14) of the constant pressure water supply system (13). The output end of the evaporator (12) is connected to the input end of the ground source side water distributor (35). The input end of the evaporator (12) is connected to the output end of the ground source side water collector (5). A ground source heat pump circulation pump (33) is provided between the output end of the condenser (11) and the first output port (14) of the constant pressure water replenishment system (13), and a buried pipe heat exchange circulation pump (15) is provided between the input end of the evaporator (12) and the output end of the ground source side water collector (5).
3. The multi-energy coupled energy storage system according to claim 2, characterized in that: The output end of the condenser (11) is connected to the input end of the first valve (16) and the input end of the eighth valve (17), respectively. The output end of the first valve (16) is connected to the input end of the second valve (18) and the return end of the constant pressure water supply system (13), respectively. The output end of the second valve (18) is connected to the input end of the seventh valve (19). The output ends of the eighth valve (17) and the seventh valve (19) are connected to the input end of the ground source side water distributor (35) through the same pipe. The output end of the evaporator (12) is connected to the output end of the second valve (18) and the input end of the seventh valve (19), respectively. The input end of the condenser (11) is connected to the input end of the third valve (20) and the output end of the sixth valve (21), respectively. The input end of the third valve (20) is connected to the output end of the ground source heat pump circulation pump (33) and the output end of the fourth valve (34), respectively. The input end of the fourth valve (34) is connected to the output end of the fifth valve (22). The input end of the fifth valve (22) and the input end of the sixth valve (21) are connected to the output end of the ground source side water collector (5) through the same pipe. The input end of the evaporator (12) is connected to the input end of the fourth valve (34) and the output end of the fifth valve (22), respectively.
4. The multi-energy coupled energy storage system according to claim 2, characterized in that: The output end of the ground source side water distributor (35) is connected to the input end of the main output pipe. The output end of the main output pipe is connected to the input end of the first output branch pipe and the input end of the second output branch pipe. The first output branch pipe and the second output branch pipe are arranged in parallel. The output end of the first output branch pipe is connected to the second inlet of the heat exchanger (4). The output end of the second output branch pipe is connected to the input end of the ground source heat pump (2). The heat exchanger circulation pump (7) is installed on the first output branch pipe. The buried pipe heat exchange circulation pump (15) is installed on the second branch pipe. The buried pipe energy monitoring device (9) and the buried pipe side energy outlet water temperature monitoring device (10) are sequentially installed on the output main pipe.
5. The multi-energy coupled energy storage system according to claim 4, characterized in that: The second output port (23) of the constant pressure water replenishment system (13) is connected to the output end of the output main pipe.
6. The multi-energy coupled energy storage system according to claim 2, characterized in that: It also includes an air source heat pump subsystem, which includes an air source heat pump (24). The output end of the air source heat pump (24) is connected to the return end of the constant pressure water replenishment system (13). The input end of the air source heat pump (24) is connected to the first output port (14). An air source heat pump circulation pump (25) is provided between the input end of the air source heat pump (24) and the first output port (14).
7. The multi-energy coupled energy storage system according to claim 2, characterized in that: The lithium bromide absorption chiller (26) further includes a refrigeration condenser (28) and a refrigeration evaporator (29), with the heat exchange side of the generator (27) in contact with the heat exchange side of the refrigeration evaporator (29).
8. The multi-energy coupled energy storage system according to claim 7, characterized in that: The refrigeration subsystem also includes a cooling tower (30), the output end of the refrigeration condenser (28) is connected to the input end of the cooling tower (30), the output end of the cooling tower (30) is connected to a condensation circulation pump (31), the condensation circulation pump (31) is connected to the input end of the refrigeration condenser (28), the input end of the refrigeration evaporator (29) is connected to the first output port (14), and the output end of the refrigeration evaporator (29) is connected to the return end of the constant pressure water replenishment system (13).
9. The multi-energy coupled energy storage system according to claim 1, characterized in that: It also includes a constant pressure liquid replenishment subsystem (32), the output of which is connected to the input of the solar collector (1).
10. The multi-energy coupled energy storage system according to claim 9, characterized in that: The constant pressure replenishment system (32) is equipped with a temperature sensor.