Solar energy and geothermal energy dual storage coupling heating equipment
Heating equipment that combines solar and geothermal energy has solved the problems of power waste and pollution in building heating in northern regions, achieving low-carbon heating and heating stability, and reducing the burden on users.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA DONGRUN GREEN ENERGY TECH CO LTD
- Filing Date
- 2025-02-12
- Publication Date
- 2026-06-30
AI Technical Summary
In northern regions, there is a phenomenon of power wastage when using photovoltaic power generation for building heating. Traditional heating methods are highly polluting and inefficient, placing a heavy economic burden on users and failing to meet building heating needs.
It combines solar thermal devices and shallow geothermal sources, and uses heat exchange components and a heat pump system to achieve heat energy storage and circulating heating. It is also equipped with an electrical control module and a backup heat source to ensure heating stability.
It achieves low-carbon, low-energy-consumption, and low-pollution heating, ensures heating stability, reduces environmental pollution, lowers the economic burden on users, and improves heating safety.
Smart Images
Figure CN224434723U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating equipment technology, and in particular to a solar and geothermal energy dual-storage coupled heating equipment. Background Technology
[0002] In northern my country, renewable energy has been used to power buildings, with most of the energy coming from photovoltaic power generation. However, there is a significant amount of wasted electricity during the non-heating season, and photovoltaic power generation cannot meet the functional needs of buildings during winter.
[0003] Existing heating methods indirectly or directly emit large amounts of pollutants (such as carbon dioxide). Moreover, traditional coal-fired or gas-fired boilers have low combustion efficiency and high energy consumption, causing significant environmental pollution and imposing a certain economic burden on users. To address these issues, we propose a solar and geothermal energy dual-storage coupled heating device. Utility Model Content
[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a solar and geothermal energy dual-storage coupled heating device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A solar and geothermal dual-storage coupled heating device includes a solar thermal device and a shallow geothermal source device, wherein the solar thermal device and the shallow geothermal source device are connected to a heat exchange component, and the heat exchange component is connected to a user terminal.
[0007] The heat exchange component includes a heat source-side energy storage device, which is connected to a solar thermal device and a shallow geothermal source via pipelines. The heat source-side energy storage device is connected to a heat source circulation pump, and a heat pump is connected to the heat source circulation pump. The heat pump is connected to a heating-side circulation pump and a heating-side energy storage device via pipelines. The heating-side circulation pump and the heating-side energy storage device are connected to a user terminal. The heat pump is also connected to a return pipe, which is connected to the shallow geothermal source device.
[0008] Preferably, the heat source-side energy storage device includes a buried chamber, which contains multiple separate chambers. Vacuum chambers are provided between the separate chambers. Heat exchange tubes are provided in each separate chamber. The heat exchange tubes are connected to a solar thermal device and a shallow geothermal source via adapter pipes. A one-way valve is provided on the heat exchange tube. A turntable is rotatably connected to the adapter pipe, and an adapter is provided on the turntable. A drive motor is fixedly connected in the buried chamber, and the output end of the drive motor is fixedly connected to the turntable. A push rod for pushing the valve disc of the one-way valve is slidably connected in the adapter, and a compression spring is fixedly connected to the push rod. The compression spring is fixedly connected to the inner wall of the adapter.
[0009] Preferably, the heat pump is also connected to a water storage tank, an electric heating device is installed in the water storage tank, and an electric control module is installed on the electric heating device, the electric control module being electrically connected to the heat pump.
[0010] Preferably, the electronic control module includes multiple temperature sensors, a signal processor, a relay, and a wireless communication module. The temperature sensors are respectively located at the connection points between the user terminal, the heat exchange component, the solar thermal device, and the shallow geothermal source device.
[0011] Preferably, the shallow geothermal source device is also connected to a transfer pipe, the end of which is away from the shallow geothermal source device is connected to a heat source circulation pump, and an electrically controlled valve is provided on the transfer pipe.
[0012] Preferably, a solar circulation pump is provided between the solar thermal device and the heat source-side energy storage device.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model, by setting up heat exchange components, uses solar thermal devices and shallow geothermal source devices to input heat energy into the heat source side energy storage device. After the heat energy is circulated by the heat source circulation pump, it is then exchanged with the user terminal through a reverse circulation using the heat pump. Ultimately, it achieves the purpose of using low-heat solar and geothermal energy to heat the user terminal. There is no atmospheric emission pollution produced by coal-fired boilers. It belongs to the utilization of green and low-carbon energy and achieves stable heating with low energy consumption, low cost and low pollution.
[0015] This invention, by setting up an electrical control module in conjunction with a water storage tank, can further increase the heating temperature after heat pump circulation when the heat from solar thermal devices and shallow geothermal sources cannot meet the heating demand, thus prioritizing the heating effect. Furthermore, solar thermal and geothermal sources can serve as backup heat sources for each other. When one device malfunctions, it switches to the other, ensuring the continuous and normal operation of heating in public buildings and increasing the safety factor of heating in public buildings. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the layout structure of a solar and geothermal energy dual-storage coupled heating device proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the heat source-side energy storage device of a solar and geothermal dual-storage coupled heating system proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the turntable structure of a solar and geothermal energy dual-storage coupled heating device proposed in this utility model.
[0019] In the diagram: 1. Solar thermal device; 2. Shallow geothermal source device; 3. User terminal; 4. Heat source side energy storage device; 41. Buried chamber; 42. Split chamber; 43. Vacuum chamber; 44. Heat exchange tube; 45. One-way valve; 46. Turntable; 47. Adapter; 48. Top rod; 49. Drive motor; 5. Heat source circulation pump; 6. Heat pump; 7. Heating side circulation pump; 8. Heating side energy storage device; 9. Return pipe; 10. Water storage tank; 11. Electrical control module; 12. Adapter pipe; 13. Electrically controlled valve. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figures 1-3 A solar and geothermal dual-storage coupled heating device includes a solar thermal device 1 and a shallow geothermal source device 2, wherein the solar thermal device 1 and the shallow geothermal source device 2 are connected to a heat exchange component, and the heat exchange component is connected to a user terminal 3.
[0022] Among them, the solar thermal device 1 and the shallow geothermal source device 2 are existing technologies for collecting solar energy for heating and providing heating based on shallow geothermal energy, while the user terminal 3 refers to the heating equipment such as floor heating equipment and radiators in the user's home.
[0023] The heat exchange assembly includes a heat source-side energy storage device 4, which is connected to a solar thermal device 1 and a shallow geothermal source via pipelines. The heat source-side energy storage device 4 is also connected to a heat source circulation pump 5, and a heat pump 6 is connected to the heat source circulation pump 5. The heat pump 6 is connected to a heating-side circulation pump 7 and a heating-side energy storage device 8 via pipelines. The heating-side circulation pump 7 and the heating-side energy storage device 8 are connected to a user terminal 3. The heat pump 6 is also connected to a return pipe 9, which is connected to the shallow geothermal source device 2.
[0024] In the above design, the heat exchange component inputs the solar thermal device 1 and the shallow geothermal source device 2 into the heat source side energy storage device 4 through pipelines to store the heat energy. The heat pump 6 increases the temperature of the heat input to the heating side energy storage device 8 by reverse circulation of the heat energy output from the heat source side energy storage device 4, ensuring that the temperature of the heat energy input to the user terminal 3 meets the heating demand. Since the heat energy is transported through water, pump-type equipment is often used as the driving device to drive the heat energy transmission.
[0025] A solar circulation pump is provided between the solar thermal device 1 and the heat source-side energy storage device 4;
[0026] During the winter heating season, when there is sufficient sunshine during the day, the solar thermal device 1 recovers solar heat to heat water, which then enters the heat source-side heat storage device. The hot water from the heat source-side heat storage device enters the heat pump 6, and the water, after being cooled in the heat pump 6, enters the shallow geothermal source device 2 through the heating-side circulation pump 7. After being heated again, it returns to the heat source-side heat storage device to store the heat. The water heated by the heat pump 6 is then supplied to the user terminal 3 through the heating circulation pump. Excess heat can be stored in the heating-side heat storage device to ensure the heating effect during the coldest period.
[0027] In summer, the heat extracted from shallow geothermal energy during winter needs to be replenished. The heating-side circulation pump 7 is turned off, and solar thermal energy is used to send heat into the shallow geothermal energy through the solar circulation pump and the heating-side circulation pump 7 to achieve the purpose of cross-seasonal heat storage.
[0028] Furthermore, the heat source-side energy storage device 4 includes a buried chamber 41, which contains multiple separate chambers 42. A vacuum chamber 43 is provided between the separate chambers 42. A heat exchange tube 44 is provided in each separate chamber 42. The heat exchange tube 44 is connected to the solar thermal device 1 and the shallow geothermal source via a transfer pipe 12. A one-way valve 45 is provided on the heat exchange tube 44. A turntable 46 is rotatably connected to the transfer pipe 12, and an adapter 47 is provided on the turntable 46. A drive motor 49 is fixedly connected in the buried chamber 41, and the output end of the drive motor 49 is fixedly connected to the turntable 46. A push rod 48 for pushing the valve disc of the one-way valve 45 is slidably connected in the adapter 47, and a compression spring is fixedly connected to the push rod 48. The compression spring is fixedly connected to the inner wall of the adapter 47.
[0029] Based on the above design, the buried chamber 41 is set up to improve the heat preservation effect of the heat source side energy storage device 4, while multiple separate chambers 42 separated by vacuum chambers 43 are set up to form multiple independent heat preservation chambers. During the winter heating season, when there is sufficient sunlight during the day, the water in multiple separate chambers 42 can be heated in sequence to store heat energy. When used at night, the drive motor 49 is controlled to rotate according to the water temperature in the separate chambers 42, so that the adapter 47 is aligned with different heat exchange tubes 44. When the adapter 47 is aligned with the heat exchange tubes 44, the push rod 48 pushes open the valve disc of the one-way valve 45, thereby forming a passage with the heat exchange tubes 44 located in different separate chambers 42, so as to utilize the heat energy stored in different separate chambers 42 in sequence. In the winter in northern regions, the time when sunlight meets the heating demand is often about eight hours. Using multiple separate chambers 42 can meet the heating demand at night.
[0030] Furthermore, the heat pump 6 is also connected to a water storage tank 10, an electric heating device is installed in the water storage tank 10, and an electric control module 11 is installed on the electric heating device. The electric control module 11 is electrically connected to the heat pump 6.
[0031] In this design, the water storage tank 10 also uses water as the medium. After the heat pump 6 performs reverse circulation, if the water temperature still cannot meet the energy demand, the electric control module 11 will control the electric heating device to heat the water in the water storage tank 10 and add it to the circulation when it detects that the temperature is lower than the demand, thereby compensating for the heat of the heating system and ensuring that the hot water temperature input to the user terminal 3 meets the heating demand.
[0032] Furthermore, the electronic control module 11 includes multiple temperature sensors, a signal processor, a relay, and a wireless communication module. The temperature sensors are respectively located at the connection points between the user terminal 3, the heat exchange component, the solar thermal device 1, and the shallow geothermal source device 2.
[0033] The temperature sensor can monitor the temperature of the pipeline that supplies heat to the user terminal 3 after the heat pump 6 circulates, and it can also monitor the temperature of the solar thermal device 1 and the shallow geothermal source device 2. In conjunction with the signal processor, the heat pump 6 and the electric heating device can perform heating compensation according to actual needs, thereby improving the level of automation. The wireless transmission module is set up to facilitate the connection of the electronic control module 11 to the Internet of Things, so as to realize remote control and optimize heat energy distribution based on comprehensive weather information.
[0034] Furthermore, the shallow geothermal source device 2 is also connected to a transfer pipe 12, the end of the transfer pipe 12 away from the shallow geothermal source device 2 is connected to the heat source circulation pump 5, and an electrically controlled valve 13 is provided on the transfer pipe 12.
[0035] In this design, an additional transfer pipe 12 is installed to shield the solar thermal device 1 under special circumstances, such as extreme weather or failure of the solar thermal device 1. The circulating water is directly heated and circulated through the shallow geothermal source device 2, and the electric heating device is used for heating compensation to meet the heating demand. In the event of failure of the shallow geothermal source device 2, the hot water is circulated through the heat pump 6 and then directly heated by the heat storage device on the heat source side without passing through the shallow geothermal source device 2, and the temperature is increased by the solar thermal device 1. This scheme is a backup scheme, and the solar thermal device 1 and the shallow geothermal source device 2 can serve as backup equipment for each other, ensuring the continuous and normal operation of heating in public buildings and increasing the safety factor of heating operation in public buildings.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A solar and geothermal dual storage coupling heat supply device, comprising a solar photo-thermal device (1) and a shallow geothermal source device (2), characterized in that, The solar thermal device (1) and the shallow geothermal source device (2) are connected by a heat exchange component, and the heat exchange component is connected to a user terminal (3). The heat exchange component includes a heat source side energy storage device (4), which is connected to a solar thermal device (1) and a shallow geothermal source via pipelines. The heat source side energy storage device (4) is connected to a heat source circulation pump (5), and a heat pump (6) is connected to the heat source circulation pump (5). The heat pump (6) is connected to a heating side circulation pump (7) and a heating side energy storage device (8) via pipelines. The heating side circulation pump (7) and the heating side energy storage device (8) are connected to a user terminal (3). The heat pump (6) is also connected to a return pipe (9), which is connected to a shallow geothermal source device (2).
2. The solar and geothermal energy dual storage coupling heating device according to claim 1, characterized in that, The heat source-side energy storage device (4) includes a buried chamber (41), which contains multiple separate chambers (42). Vacuum chambers (43) are located between the separate chambers (42). Each separate chamber (42) contains a heat exchange tube (44). The heat exchange tube (44) is connected to the solar thermal device (1) and a shallow geothermal source via a transfer pipe (12). A one-way valve (45) is installed on the heat exchange tube (44). The transfer pipe (12)... A turntable (46) is rotatably connected to the underground chamber (41), and an adapter (47) is provided on the turntable (46). A drive motor (49) is fixedly connected inside the underground chamber (41), and the output end of the drive motor (49) is fixedly connected to the turntable (46). A push rod (48) for pushing the valve disc of the one-way valve (45) is slidably connected inside the adapter (47), and a compression spring is fixedly connected to the push rod (48). The compression spring is fixedly connected to the inner wall of the adapter (47).
3. The solar and geothermal energy dual storage coupling heating device according to claim 1, characterized in that, The heat pump (6) is also connected to a water storage tank (10), an electric heating device is provided in the water storage tank (10), and an electric control module (11) is provided on the electric heating device. The electric control module (11) is electrically connected to the heat pump (6).
4. The solar and geothermal energy dual storage coupling heating device according to claim 3, characterized in that, The electronic control module (11) includes multiple temperature sensors, a signal processor, a relay and a wireless communication module. The temperature sensors are respectively located at the connection points of the user terminal (3), the heat exchange component and the solar thermal device (1) and the shallow geothermal source device (2).
5. The solar and geothermal energy dual storage coupling heating device according to claim 1, characterized in that, The shallow geothermal source device (2) is also connected to a transfer pipe (12). The end of the transfer pipe (12) away from the shallow geothermal source device (2) is connected to the heat source circulation pump (5). An electric control valve (13) is provided on the transfer pipe (12).
6. The solar and geothermal energy dual storage coupling heating device according to claim 1, characterized in that, A solar circulation pump is installed between the solar thermal device (1) and the heat source side energy storage device (4).