Auxiliary heat source device for a solar heating system
By linking the solar collector manifold, electric water heater, and gas water heater, the problem of the solar heating system being unable to work on cloudy or snowy days has been solved, ensuring continuous heating from the heating network and guaranteeing the normal functioning of residents' lives.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-02
- Publication Date
- 2026-06-09
AI Technical Summary
On cloudy or snowy days, the solar heating system cannot function properly, resulting in a lack of continuous heating and affecting residents' lives.
An auxiliary heat source device for a solar heating system was designed. Through the linkage of the heat collection manifold, electric water heater and gas water heater, the electric and gas water heaters provide heat source on cloudy or snowy days to ensure continuous heating of the heating network.
On cloudy or snowy days, auxiliary heat source devices ensure continuous heating of the heating network, guaranteeing the normal functioning of residents' lives.
Smart Images

Figure CN224340218U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of solar heating technology, and in particular relates to an auxiliary heat source device for a solar heating system. Background Technology
[0002] In northern my country, most homes have underfloor heating for warmth during winter, ensuring comfort. Currently, centralized heating is typically provided by large boilers. However, in rural areas, where centralized heating systems are lacking, residents rely on their own boilers, which pollute the environment and incur significant expenses for coal. Solar heating systems are often used for warmth in these areas. However, on cloudy or snowy days, these systems are deprived of sunlight, causing them to malfunction and severely impacting residents' lives. Utility Model Content
[0003] To address the above problems, this utility model provides an auxiliary heat source device for a solar heating system.
[0004] This utility model is implemented as follows: An auxiliary heat source device for a solar heating system includes a collector manifold. Multiple collector pipes are connected to both sides of the collector manifold. One end of the collector manifold has an inlet pipe, and the other end has a first outlet pipe. Water enters the collector manifold and collector pipes through the inlet pipe. Under sunlight, the water in the collector pipes heats up and then flows along the first outlet pipe to the heating network for indoor heating. A four-way connector is provided at the end of the first outlet pipe to facilitate the simultaneous connection of multiple pipes. One end of the four-way connector is connected to the heating network, and the other end is connected to an electric water heater via a first water supply pipe. A first shut-off valve is provided on the first water supply pipe. Opening the first shut-off valve allows hot water from the electric water heater to flow along the first water supply pipe to the heating network for heating. A water tank is provided on one side of the electric water heater for water supply. A second outlet pipe is provided at the bottom of the water tank, and a three-way connector is provided at the end of the second outlet pipe. The system connects multiple pipes simultaneously. One end of the tee is connected to an electric water heater via a second water supply pipe. The second water supply pipe is equipped with a first water pump and a second shut-off valve. Opening the second shut-off valve starts the first water pump, and water from the tank flows along the second water supply pipe to the electric water heater for replenishment. The other end of the tee is connected to a gas water heater via a third water supply pipe. The third water supply pipe is equipped with a third shut-off valve. Opening the third shut-off valve allows hot water from the gas water heater to flow along the third water supply pipe to the heating network for heating. The other end of the tee is connected to a gas water heater via a fourth water supply pipe. The fourth water supply pipe is equipped with a second water pump and a fourth shut-off valve. Opening the fourth shut-off valve starts the second water pump, and water from the tank flows along the fourth water supply pipe to the gas water heater for replenishment. A fifth shut-off valve is installed on the first outlet pipe to open and close the first outlet pipe, and a sixth shut-off valve is installed on the second outlet pipe to open and close the second outlet pipe.
[0005] Preferably, the end of the heating network is connected to the water collection tank via a return water pipe. The warm water in the heating network flows into the water collection tank through the return water pipe for collection, and then is put into the heat collection pipe or water tank for reuse.
[0006] Preferably, the water tank is equipped with a water supply pipe for replenishing water to the water tank.
[0007] Preferably, a liquid level observation window is provided on the lower part of the side wall of the water tank to observe the liquid level of the water tank and facilitate timely replenishment of water.
[0008] The beneficial effects of this utility model are as follows: When encountering cloudy or snowy days, the heat collection pipe and heat collection manifold are not used. The water in the water tank flows along the second water supply pipe to the electric water heater for heating, and the hot water in the electric water heater flows along the first water supply pipe to the heating network for heating. The water in the water tank flows along the fourth water supply pipe to the gas water heater for heating, and the hot water in the gas water heater flows along the third water supply pipe to the heating network for heating, ensuring the continuous heating of the heating network and guaranteeing people's normal life. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model;
[0010] In the diagram: 1. Heat collector manifold; 2. Heat collector pipe; 3. Inlet pipe; 4. First outlet pipe; 5. Four-way valve; 6. Heating network; 7. First water supply pipe; 8. Electric water heater; 9. First shut-off valve; 10. Water tank; 11. Second outlet pipe; 12. T-way valve; 13. Second water supply pipe; 14. First water pump; 15. Second shut-off valve; 16. Third water supply pipe; 17. Gas water heater; 18. Third shut-off valve; 19. Fourth water supply pipe; 20. Second water pump; 21. Fourth shut-off valve; 22. Fifth shut-off valve; 23. Sixth shut-off valve; 24. Return pipe; 25. Water collection tank; 26. Water supply pipe; 27. Liquid level observation window. Detailed Implementation
[0011] To better understand the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model.
[0012] like Figure 1The auxiliary heat source device of a solar heating system shown includes a collector manifold 1, with multiple collector pipes 2 connected to both sides of the collector manifold 1. One end of the collector manifold 1 is equipped with a water inlet pipe 3, and the other end is equipped with a first water outlet pipe 4. Water enters the collector manifold 1 and the collector pipes 2 along the water inlet pipe 3. Under sunlight, the water in the collector pipes 2 heats up and then flows along the first water outlet pipe 4 to the heating network 6 for indoor heating. The end of the first water outlet pipe 4 is equipped with... A four-way connector 5 is provided for connecting multiple pipes simultaneously. One end of the four-way connector 5 is connected to the heating network 6, and the other end is connected to the electric water heater 8 via a first water supply pipe 7. A first shut-off valve 9 is installed on the first water supply pipe 7. When the first shut-off valve 9 is opened, hot water from the electric water heater 8 flows along the first water supply pipe 7 to the heating network 6 for heating. A water tank 10 is provided on one side of the electric water heater 8 for water supply. A water replenishment pipe 26 is provided on the water tank 10 for replenishing water. A liquid level observation window 27 is provided on the lower part of the side wall of the water tank 10 to observe the liquid level and facilitate timely replenishment. The bottom of the water tank 10 is provided with a second water outlet pipe 11, and the end of the second water outlet pipe 11 is provided with a tee 12 for connecting multiple pipes at the same time. One end of the tee 12 is connected to the electric water heater 8 through a second water supply pipe 13. The second water supply pipe 13 is provided with a first water pump 14 and a second shut-off valve 15. When the second shut-off valve 15 is opened, the first water pump 14 is started, and the water in the water tank 10 flows into the electric water heater 8 along the second water supply pipe 13 for water replenishment. The other end of the tee 5 is connected to the gas water heater 17 through a third water supply pipe 16. The third water supply pipe 16 is provided with a third shut-off valve 18. When the third shut-off valve 18 is opened, the gas water heater 17 is connected to the gas water heater 17 through a third water supply pipe 16. The third water supply pipe 16 is provided with a third shut-off valve 18. The hot water in the gas water heater 17 flows through the third water supply pipe 16 to the heating network 6 for heating via the stop valve 18. The other end of the tee 12 is connected to the gas water heater 17 via the fourth water supply pipe 19. The fourth water supply pipe 19 is equipped with a second water pump 20 and a fourth stop valve 21. When the fourth stop valve 21 is opened, the second water pump 20 is started, and the water in the water tank 10 flows through the fourth water supply pipe 19 to the gas water heater 17 for replenishment. The first water outlet pipe 4 is equipped with a fifth stop valve 22 to open and close the first water outlet pipe 4. The second water outlet pipe 11 is equipped with a sixth stop valve 23 to open and close the second water outlet pipe 11.
[0013] The end of the heating network 6 is connected to the water collection tank 25 through the return water pipe 24. The warm water in the heating network 6 flows into the water collection tank 25 through the return water pipe 24 for collection, and then is put into the heat collection pipe 2 or the water tank 10 for reuse.
[0014] When encountering cloudy or snowy weather, close the fifth shut-off valve 22, and stop the use of the collector pipe 2 and the collector manifold 1. Open the sixth shut-off valve 23 and the second shut-off valve 15, start the first water pump 14, and the water in the water tank 10 flows to the electric heater 8 for heating. Then open the first shut-off valve 9, and the water in the electric water heater 8 flows to the heating network 6 for heating. Open the sixth shut-off valve 23 and the fourth shut-off valve 21, start the second water pump 20, and the water in the water tank 10 flows to the gas heater 17 for heating. Then open the third shut-off valve 18, and the water in the gas water heater 17 flows to the heating network 6 for heating, ensuring the continuous heating of the heating network 6 and guaranteeing people's normal life.
[0015] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. An auxiliary heat source device for a solar heating system, comprising a collector manifold, wherein multiple collector pipes are connected to both sides of the collector manifold, an inlet pipe is provided at one end of the collector manifold, and a first outlet pipe is provided at the other end of the collector manifold, characterized in that, The first outlet pipe has a four-way valve at one end, which is connected to the heating network. The other end of the four-way valve is connected to an electric water heater via a first water supply pipe. A first shut-off valve is installed on the first water supply pipe. A water tank is installed on one side of the electric water heater, and a second outlet pipe is installed at the bottom of the water tank. A three-way valve is installed at the end of the second outlet pipe, which is connected to the electric water heater via a second water supply pipe. A first water pump and a second shut-off valve are installed on the second water supply pipe. The other end of the four-way valve is connected to a gas water heater via a third water supply pipe. A third shut-off valve is installed on the third water supply pipe. The other end of the three-way valve is connected to the gas water heater via a fourth water supply pipe. A second water pump and a fourth shut-off valve are installed on the fourth water supply pipe. A fifth shut-off valve is installed on the first outlet pipe, and a sixth shut-off valve is installed on the second outlet pipe.
2. The auxiliary heat source device for a solar heating system according to claim 1, characterized in that, The end of the heating network is connected to the water collection tank via a return water pipe.
3. The auxiliary heat source device for a solar heating system according to claim 1, characterized in that, The water tank is equipped with a water supply pipe.
4. The auxiliary heat source device for a solar heating system according to claim 1, characterized in that, A liquid level observation window is provided on the lower part of the side wall of the water tank.