A geothermal and solar complementary combined heating system

Abstract

The present application discloses a geothermal and solar complementary combined heating system, which relates to the technical field of heating, and includes: a solar heat exchange component, one end of which is connected to an energy convergence and regulation component to form a heat exchange loop, and the other end is externally connected to a solar heat collection system to form a heat exchange loop. The solar heat collection system converts solar energy into heat energy and transports it to the solar heat exchange component. The solar heat exchange component serves as a transfer medium and transports the heat energy to the energy convergence and regulation component; a ground source heat pump component, one end of which is connected to the energy convergence and regulation component to form a heat exchange loop, and the other end extends underground to form a heat exchange loop. The ground source heat pump component extracts medium-depth geothermal energy or shallow geothermal energy and transports it to the energy convergence and regulation component; an energy storage component, one end of which is connected to the energy convergence and regulation component. The energy convergence and regulation component transports the converged heat to the energy storage component for convergence, and the other end transports energy outward. And a storage member is arranged in the energy storage component to store heat.

Description

Technical Field

[0001] This application relates to the technical field of heating, and particularly to a complementary combined heating system of geothermal energy and solar energy. Background Art

[0002] A complementary heating system of geothermal energy and solar energy refers to combining these two renewable energy sources, namely geothermal energy and solar energy, for building heating, cooling, and hot water supply. The system usually includes a geothermal heat pump, solar collectors, and corresponding energy storage and control systems. During the heating season, the system can utilize both geothermal energy and solar energy to provide heat energy. During the non-heating season, the heat energy collected by solar energy can be stored in the geothermal system for subsequent heating or other uses, thereby achieving efficient energy utilization and seasonal balance.

[0003] However, different energy sources have different characteristics and their own limitations. Geothermal energy provides a stable basic heat load, and solar energy supplements the heat energy during the day. For the collection of different energy sources.

[0004] Therefore, it is necessary to provide a complementary combined heating system of geothermal energy and solar energy to solve the problems raised in the above background art. Summary of the Invention

[0005] To achieve the above object, this application provides the following technical solution: A complementary combined heating system of geothermal energy and solar energy, comprising:

[0006] A solar heat exchange component, one end of which is connected to an energy convergence and regulation component to form a heat exchange loop, and the other end is externally connected to a solar heat collection system to form a heat exchange loop. The solar heat collection system converts solar energy into heat energy and transports it to the solar heat exchange component. The solar heat exchange component serves as a transfer and transports the heat energy to the energy convergence and regulation component;

[0007] A ground heat pump component, one end of which is connected to the energy convergence and regulation component to form a heat exchange loop, and the other end extends underground to form a heat exchange loop. The ground heat pump component extracts medium-depth geothermal energy or shallow geothermal energy and transports it to the energy convergence and regulation component;

[0008] An energy storage component, one end of which is connected to the energy convergence and regulation component. The energy convergence and regulation component transports the converged heat to the energy storage component for convergence, and the other end transports energy outward. And a storage member is provided in the energy storage component to store heat.

[0009] Further, preferably, the energy storage component includes a storage member, an exchange joint, and an output joint. The storage member stores heat in the built-in medium, supplies heat source outward through the output joint, and is connected to the energy convergence and regulation component through the exchange joint to collect and store heat.

[0010] Further, preferably, the solar heat exchange assembly includes:

[0011] An exchange cabin body, on which an exchange end is provided for externally connecting a solar heat collection system, and a heat exchanger is arranged inside the exchange cabin body;

[0012] A first transmission pipe, arranged on the exchange cabin body, and the other end extends to the heat exchanger;

[0013] A first return pipe, arranged on the exchange cabin body, and the exchange cabin body forms a loop by connecting the energy convergence and regulation assembly through the first return pipe and the first transmission pipe by means of a pipeline.

[0014] Further, preferably, a regulator and a monitor are also arranged on the exchange cabin body, and the regulator and the monitor are connected to the loop formed by the first return pipe and the first transmission pipe.

[0015] Further, preferably, the ground heat source pump assembly includes a pump assembly, a second transmission pipe, a second return pipe and a pressurizing member. The pump assembly includes a driving motor and a connected third return pipe and third transmission pipe. Both the third return pipe and the second transmission pipe extend underground and are connected. The third transmission pipe and the second return pipe are connected through the energy convergence and regulation assembly.

[0016] Further, preferably, the energy convergence and regulation assembly includes:

[0017] A fixed bin, on which a plurality of heat exchange members are arranged;

[0018] A solar energy access end, arranged on the fixed bin, the solar energy access end is connected to the first transmission pipe, and the solar energy access end is connected to a plurality of the heat exchange members through a shunt manifold. The heat exchange members are externally connected to the first return pipe through a first return end to form a path;

[0019] A geothermal energy access manifold, arranged on the fixed bin, the geothermal energy access manifold is connected to the third transmission pipe, and the geothermal energy access manifold is connected to a plurality of the heat exchange members. The heat exchange members form a path by connecting to the second return pipe through a second return end.

[0020] Further, preferably, the energy convergence and regulation assembly further includes a transmission port, and the transmission port is connected to a plurality of the heat exchange members and the exchange joint to form a loop.

[0021] Further, preferably, the heat exchange member includes a heat exchange pipe, a first joint, a first connecting sleeve, a second connecting sleeve and a second joint. Among them, the first connecting sleeve and the second connecting sleeve are sleeved on the heat exchange pipe, the first joint is arranged on the first connecting sleeve, and the second joint is arranged on the second connecting sleeve.

[0022] Further, preferably, the heat exchanger further includes a circulation pipe, an output pipe, a flow chamber, and an output port. The circulation pipe is disposed between the first connection sleeve and the second connection sleeve, and the circulation pipe connects the first joint and the output pipe. A gap is left between the heat exchange pipe and the second connection sleeve to form a flow chamber, and the output port penetrates through the second connection sleeve and extends into the flow chamber.

[0023] Further, preferably, the first joint is connected to the geothermal energy access manifold, the second joint is connected to the shunt manifold, the output pipe is connected to the second return end, and the output port is connected to the first return end.

[0024] Compared with the prior art, the present application provides a geothermal and solar complementary combined heating system, which has the following beneficial effects:

[0025] In the present application, by controlling the heat exchange between the high-temperature medium from the geothermal source and the medium in the circulation pipe and the heat exchange pipe, the circulation pipe is wound around the heat exchange pipe to increase the transmission distance of the high-temperature medium, and it is ensured that heat exchange with the heat exchange pipe is always maintained during the transmission process, making full use of geothermal energy;

[0026] The high-temperature medium from the solar energy source exchanges heat with the medium in the flow chamber and the heat exchange pipe. The flow direction of the medium in the heat exchange pipe first passes through the flow chamber. At this time, there is a greater temperature difference between the medium in the heat exchange pipe and the high-temperature medium in the flow chamber, and the high-temperature medium has a short flow distance in the flow chamber, ensuring a higher heat exchange efficiency;

[0027] A plurality of heat exchangers are provided. According to the temperature of the medium in the heat exchange pipes of different heat exchangers, the high-temperature medium from the solar energy source can be separately controlled in terms of flow rate and which heat exchanger it passes through by the valves in the shunt manifold, facilitating the adjustment of the heat exchange efficiency, and the medium in the heat exchanger undergoes sufficient heat exchange in a macroscopic convection manner. In particular, it first passes through the solar heat source for heat exchange and then through the geothermal energy for heat exchange, improving the overall heat exchange efficiency and ensuring the working effect even at night. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0029] Figure 1 It is a schematic diagram of the overall structure of a geothermal and solar complementary combined heating system;

[0030] Figure 2 It is a schematic diagram of the structure of the solar heat exchange assembly of a geothermal and solar complementary combined heating system;

[0031] Figure 3 It is a schematic diagram of the structure of the geothermal heat pump assembly of a geothermal and solar complementary combined heating system;

[0032] Figure 4 Schematic diagram of the energy convergence and regulation component structure of a complementary combined heating system of geothermal energy and solar energy;

[0033] Figure 5 Schematic diagram of the heat exchanger structure of a complementary combined heating system of geothermal energy and solar energy;

[0034] Figure 6 Schematic diagram of the internal structure of the heat exchanger of a complementary combined heating system of geothermal energy and solar energy;

[0035] In the figure: 1. Solar heat exchange component; 11. Exchange cabin; 12. Exchange end; 13. First transmission pipe; 14. First return pipe; 15. Regulator; 16. Monitor; 2. Geothermal heat pump component; 21. Pump component; 211. Third return pipe; 212. Third transmission pipe; 22. Second transmission pipe; 23. Second return pipe; 24. Pressurizing component; 3. Energy convergence and regulation component; 31. Fixed bin; 32. Heat exchanger; 321. Heat exchange pipe; 322. First joint; 323. First connecting sleeve; 324. Second connecting sleeve; 325. Second joint; 326. Circulation pipe; 327. Output pipe; 328. Flow bin; 329. Output port; 33. Solar energy access end; 34. Shunt manifold; 35. Geothermal energy access manifold; 36. Transmission port; 37. First return end; 38. Second return end; 4. Energy storage component; 41. Storage part; 42. Exchange joint; 43. Output joint. Detailed implementation manners

[0036] Please refer to Figures 1 - 6 , in the embodiment of the present application, a complementary combined heating system of geothermal energy and solar energy includes:

[0037] The solar heat exchange component 1 is connected to the energy convergence and regulation component 3 at one end to form a heat exchange loop, and is connected to the solar heat collection system at the other end to form a heat exchange loop. The solar heat collection system converts solar energy into heat energy and transports it to the solar heat exchange component 1. The solar heat exchange component 1 serves as a transfer and transports the heat energy into the energy convergence and regulation component 3;

[0038] The geothermal heat pump component 2 is connected to the energy convergence and regulation component 3 at one end to form a heat exchange loop, and extends to the ground at the other end to form a heat exchange loop. The geothermal heat pump component 2 extracts medium-depth geothermal energy or shallow geothermal energy and transports it into the energy convergence and regulation component 3;

[0039] The energy storage component 4 is connected to the energy convergence and regulation component 3 at one end. The energy convergence and regulation component 3 transports the converged heat to the energy storage component 4 for convergence, and transports energy outward at the other end. And a storage part 41 is arranged in the energy storage component 4 to store heat.

[0040] It should be noted that based on the characteristics of providing a stable basic heat load by geothermal energy and supplementing the heat energy during the day by solar energy, heat exchange is adjusted specifically in the energy convergence and regulation component 3. The characteristics of the stable heat load provided by geothermal energy are utilized to extend the heat exchange time, and according to the characteristics of supplementing the heat energy during the day by solar energy, the heat exchange frequency is increased, the overall heat exchange efficiency is improved, heat loss is reduced, and heat collection is maximally ensured.

[0041] As a preferred embodiment, the energy storage component 4 includes a storage member 41, an exchange joint 42, and an output joint 43. The storage member 41 stores heat with an internal medium, supplies heat sources outward through the output joint 43, and is connected to the energy convergence and regulation component 3 through the exchange joint 42 to collect and store heat.

[0042] In this embodiment, as Figure 2 , the solar heat exchange component 1 includes:

[0043] An exchange cabin 11, on which an exchange end 12 is provided for connecting to an external solar heat collection system, and a heat exchanger is provided inside the exchange cabin 11;

[0044] A first transfer pipe 13, arranged on the exchange cabin 11, with the other end extending to the heat exchanger to perform heat exchange with the high-temperature medium transported by the solar heat collection system;

[0045] A first return pipe 14, arranged on the exchange cabin 11, and the exchange cabin 11 forms a loop with the energy convergence and regulation component 3 through the first return pipe 14 and the first transfer pipe 13 by means of pipelines.

[0046] It should be noted that the high-temperature medium is transported to the energy convergence and regulation component 3 through the first transfer pipe 13 for heat exchange, and then the low-temperature medium flows back through the first return pipe 14 and undergoes heat exchange again through the heat exchanger.

[0047] As a preferred embodiment, a regulator 15 and a monitor 16 are further arranged on the exchange cabin 11. The regulator 15 and the monitor 16 are connected to the loop formed by the first return pipe 14 and the first transfer pipe 13. Specifically, the regulator 15 is used to control the flow and flow rate of the medium in the first return pipe 14, thereby controlling the on-off of the heat transfer converted from solar energy; the monitor 16 is used to monitor the information of the medium flowing through the first return pipe 14, including temperature, flow rate, etc.

[0048] As a preferred embodiment, the ground source heat pump assembly 2 includes a pump assembly 21, a second transfer pipe 22, a second return pipe 23, and a pressurizing member 24. The pump assembly 21 includes a driving motor and a connected third return pipe 211 and a third transfer pipe 212. Both the third return pipe 211 and the second transfer pipe 22 extend underground and are connected. The third transfer pipe 212 and the second return pipe 23 are connected through an energy convergence and regulation assembly 3. Specifically, the third return pipe 211 and the third transfer pipe 212 transport the medium that has completed heat exchange into the energy convergence and regulation assembly 3.

[0049] In this embodiment, as Figure 4 , the energy convergence and regulation assembly 3 includes:

[0050] A fixed bin 31, on which a plurality of heat exchange elements 32 are arranged;

[0051] A solar energy access end 33, which is arranged on the fixed bin 31. The solar energy access end 33 is connected to the first transfer pipe 13, and the solar energy access end 33 is connected to a plurality of the heat exchange elements 32 through a shunt manifold 34. The heat exchange elements 32 are externally connected to the first return pipe 14 through a first return end 37 to form a path;

[0052] A geothermal energy access manifold 35, which is arranged on the fixed bin 31. The geothermal energy access manifold 35 is connected to the third transfer pipe 212, and the geothermal energy access manifold 35 is connected to a plurality of the heat exchange elements 32. The heat exchange elements 32 are connected to the second return pipe 23 through a second return end 38 to form a path.

[0053] As a preferred embodiment, the energy convergence and regulation assembly 3 further includes a transfer port 36. The transfer port 36 is connected to a plurality of the heat exchange elements 32 and is connected to an exchange joint 42 to form a loop.

[0054] As a preferred embodiment, the heat exchange element 32 includes a heat exchange pipe 321, a first joint 322, a first connecting sleeve 323, a second connecting sleeve 324, and a second joint 325. The first connecting sleeve 323 and the second connecting sleeve 324 are sleeved on the heat exchange pipe 321, and the first joint 322 is arranged on the first connecting sleeve 323, and the second joint 325 is arranged on the second connecting sleeve 324.

[0055] As a preferred embodiment, the heat exchange element 32 further includes a circulating pipe 326, an output pipe 327, a flow bin 328, and an output port 329. The circulating pipe 326 is arranged between the first connecting sleeve 323 and the second connecting sleeve 324, and the circulating pipe 326 connects the first joint 322 and the output pipe 327. A gap is left between the heat exchange pipe 321 and the second connecting sleeve 324 to form a flow bin 328. The output port 329 penetrates through the second connecting sleeve 324 and extends into the flow bin 328.

[0056] As a preferred embodiment, the first joint 322 is connected to the geothermal energy access manifold 35, the second joint 325 is connected to the shunt manifold 34, the output pipe 327 is connected to the second return end 38, and the output port 329 is connected to the first return end 37.

[0057] It should be noted that by controlling the heat exchange between the high-temperature medium from the geothermal source and the medium in the circulation pipe 326 and the heat exchange pipe 321, the circulation pipe 326 is wound around the heat exchange pipe 321 to increase the transmission distance of the high-temperature medium, and the heat exchange with the heat exchange pipe 321 is always maintained during the transmission process, making full use of geothermal energy;

[0058] The high-temperature medium from the solar energy source exchanges heat with the medium in the flow chamber 328 and the heat exchange pipe 321. The flow direction of the medium in the heat exchange pipe 321 first passes through the flow chamber 328. At this time, there is a greater temperature difference between the medium in the heat exchange pipe 321 and the high-temperature medium in the flow chamber 328, and the flow distance of the high-temperature medium in the flow chamber 328 is short, ensuring a higher heat exchange efficiency;

[0059] A plurality of heat exchange elements 32 are provided. According to the temperature of the medium in the heat exchange pipes 321 of different heat exchange elements 32, the high-temperature medium from the solar energy source can be separately controlled in terms of flow rate and which heat exchange element 32 it flows through by means of the valves built in the shunt manifold 34, facilitating the adjustment of the heat exchange efficiency. Moreover, the medium in the heat exchange element 32 undergoes sufficient heat exchange in a macroscopic convection manner. In particular, it first passes through the solar heat source for heat exchange and then through the geothermal energy for heat exchange, improving the overall heat exchange efficiency and ensuring the working effect even at night.

[0060] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution and the application concept of the present application, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present application.

Claims

1. A geothermal and solar complementary combined heating system, characterized in that: Including: A solar heat exchange component (1), one end of which is connected to an energy convergence and regulation component (3) to form a heat exchange loop, and the other end is externally connected to a solar heat collection system to form a heat exchange loop. The solar heat collection system converts solar energy into heat energy and transports it to the solar heat exchange component (1). The solar heat exchange component (1) serves as a transfer medium and transports the heat energy to the energy convergence and regulation component (3); A ground source heat pump component (2), one end of which is connected to an energy convergence and regulation component (3) to form a heat exchange loop, and the other end extends underground to form a heat exchange loop. The ground source heat pump component (2) extracts medium-depth geothermal energy or shallow geothermal energy and transports it to the energy convergence and regulation component (3); An energy storage component (4), one end of which is connected to an energy convergence and regulation component (3). The energy convergence and regulation component (3) transports the converged heat to the energy storage component (4) for convergence, and the other end transports energy outward. A storage member (41) is provided inside the energy storage component (4) to store heat; The solar heat exchange component (1) includes: An exchange cabin (11) provided with an exchange end (12) for externally connecting to a solar heat collection system, and a heat exchanger is provided inside the exchange cabin (11); A first transmission pipe (13) provided on the exchange cabin (11), and the other end extends to the heat exchanger; A first return pipe (14) provided on the exchange cabin (11). The exchange cabin (11) forms a loop with the energy convergence and regulation component (3) through the first return pipe (14) and the first transmission pipe (13) by means of pipelines; The ground source heat pump component (2) includes a pump unit component (21), a second transmission pipe (22), a second return pipe (23), and a pressurizing member (24). The pump unit component (21) includes a driving motor and a connected third return pipe (211) and a third transmission pipe (212). Both the third return pipe (211) and the second transmission pipe (22) extend underground and are connected. The third transmission pipe (212) and the second return pipe (23) are connected through the energy convergence and regulation component (3); The energy convergence and regulation component (3) includes: A fixed bin (31) on which a plurality of heat exchange members (32) are arranged; A solar access end (33) provided on the fixed bin (31). The solar access end (33) is connected to the first transmission pipe (13). The solar access end (33) is connected to a plurality of heat exchange members (32) through a shunt manifold (34). The heat exchange members (32) are externally connected to the first return pipe (14) through a first return end (37) to form a path; A geothermal energy access manifold (35) provided on the fixed bin (31). The geothermal energy access manifold (35) is connected to the third transmission pipe (212). The geothermal energy access manifold (35) is connected to a plurality of heat exchange members (32). The heat exchange members (32) are connected to the second return pipe (23) through a second return end (38) to form a path; The heat exchange member (32) includes a heat exchange tube (321), a first joint (322), a first connecting sleeve (323), a second connecting sleeve (324), and a second joint (325). The first connecting sleeve (323) and the second connecting sleeve (324) are sleeved on the heat exchange tube (321). The first joint (322) is arranged on the first connecting sleeve (323), and the second joint (325) is arranged on the second connecting sleeve (324). The heat exchange member (32) further includes a circulation tube (326), an output tube (327), a flow chamber (328), and an output port (329). The circulation tube (326) is arranged between the first connecting sleeve (323) and the second connecting sleeve (324). The circulation tube (326) connects the first joint (322) and the output tube (). A gap is left between the heat exchange tube (321) and the second connecting sleeve (324) to form a flow chamber (328). The output port (329) penetrates through the second connecting sleeve (324) and extends into the flow chamber (328).

2. The geothermal and solar complementary combined heating system according to claim 1, wherein: The energy storage assembly (4) includes a storage member (41), an exchange joint (42), and an output joint (43). The storage member (41) stores heat in the internal medium, supplies heat sources outward through the output joint (43), and is connected to the energy convergence and regulation assembly (3) through the exchange joint (42) to collect and store heat.

3. A geothermal and solar complementary combined heating system according to claim 1, characterized in that: A regulator (15) and a monitor (16) are further arranged on the exchange cabin (11). The regulator (15) and the monitor (16) are connected to the loop formed by the first return pipe (14) and the first transmission pipe (13).

4. A geothermal and solar complementary combined heating system according to claim 2, characterized in that: The energy convergence and regulation assembly (3) further includes a transmission port (36). The transmission port (36) connects multiple heat exchange members (32) and the exchange joint (42) to form a loop.

5. A geothermal and solar complementary combined heating system according to claim 1, characterized in that: The first joint (322) is connected to the geothermal energy access manifold (35), the second joint (325) is connected to the shunt manifold (34), the output tube (327) is connected to the second return end (38), and the output port (329) is connected to the first return end (37).

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