A zero-energy solar radiant heating system

Abstract

This utility model discloses a zero-energy solar radiant heating system, comprising a solar collector, a water distributor, radiant heating coils, and a water collector connected in sequence to form a circulating structure. The bottom of the solar collector is higher than the highest point of the radiant heating coils; the water distributor is installed below the top outlet of the solar collector but above the highest point of the radiant heating coils; and the water collector is installed below the lowest point of the radiant heating coils. Compared with existing technologies, this system utilizes solar energy as a heat source and combines it with the thermosiphon natural circulation principle, completely eliminating the energy consumption of external power equipment such as water pumps, truly achieving "zero operating energy consumption." The system operates without fuel consumption or pollutant emissions, making it energy-saving and environmentally friendly. The system structure is relatively simple and reliable, reducing maintenance costs and failure rates. Users do not need to pay for the electricity used in the heating circulation system.

Description

Technical Field

[0001] This utility model relates to the field of heating system technology, specifically to a zero-energy solar radiant heating system. Background Technology

[0002] While radiant heating offers superior comfort, its traditional implementation faces challenges in terms of energy efficiency and environmental impact. Fossil fuel boilers (gas-fired, coal-fired) consume non-renewable resources and generate carbon emissions as heat sources; while electrically driven water pump systems, although powered by the grid or renewable energy sources, consume additional energy to operate. Both impose a continuous energy cost burden. Current solar-based radiant heating equipment, although utilizing clean energy, mostly still requires power-consuming circulating water pumps to drive the working fluid, failing to achieve zero energy consumption during operation. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a zero-energy solar radiant heating system to solve the problem that heating equipment in the existing technology all consumes energy.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a zero-energy solar radiant heating system, comprising a solar collector, a water distributor, a radiant heating coil, and a water collector connected in sequence to form a circulating structure;

[0005] The bottom of the solar collector is higher than the highest point of the radiant heating coil, the water distributor is installed below the top outlet of the solar collector but above the highest point of the radiant heating coil, and the water collector is installed below the lowest point of the radiant heating coil.

[0006] Technical principle: The density of the working fluid decreases after heating in the solar collector and increases after cooling in the radiant heating coil. The resulting density difference (thermosiphon effect) serves as the driving force for circulation. Combined with the installation positions of the solar collector, radiant heating coil, manifold, and water collector, the working fluid (such as water) is heated in the solar collector, rises, enters the manifold, and then enters the radiant heating coil to dissipate heat into the room. After cooling down, the working fluid is collected in the water collector and then flows back to the bottom of the solar collector to be reheated, forming a continuous natural circulation loop.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] This zero-energy solar radiant heating system mainly consists of solar collectors, a manifold, radiant heating coils, and a water collector, with the installation positions of these components carefully considered. Utilizing solar energy as a heat source and combining it with the thermosiphon natural circulation principle, it completely eliminates the energy consumption of external power equipment such as water pumps, truly achieving "zero operating energy consumption." The system operates without fuel consumption or pollutant emissions, making it energy-saving and environmentally friendly. Its relatively simple and reliable structure reduces maintenance costs and failure rates. Users do not need to pay for the electricity used in the heating circulation system. Attached Figure Description

[0009] Figure 1 This is a process flow diagram of one embodiment of the present invention.

[0010] The reference numerals in the accompanying drawings include: 1. Solar collector; 2. Water distributor; 3. Radiant heating coil; 4. Water collector; 5. First main pipe; 6. Air vent valve; 7. Second main pipe; 8. Regulating valve; 9. First branch pipe; 10. Second branch pipe; 11. Ball valve. Detailed Implementation

[0011] The present invention will be further described in detail below through specific embodiments:

[0012] like Figure 1 As shown in the figure, this utility model embodiment proposes a zero-energy solar radiant heating system, including a solar collector 1, a water distributor 2, a radiant heating coil 3, and a water collector 4 connected in sequence to form a circulation structure; wherein, the bottom of the solar collector 1 is higher than the highest point of the radiant heating coil 3, the water distributor 2 is installed below the top outlet of the solar collector 1 but higher than the highest point of the radiant heating coil 3, and the water collector 4 is installed below the lowest point of the radiant heating coil 3.

[0013] In this embodiment, the installation of the solar collector 1, the water distributor 2, the radiant heating coil 3, and the water collector 4 will be described in the following manner.

[0014] For example: the solar collector 1 is installed on the roof, the water distributor 2 is installed on the top side wall of the room, the radiant heating coil 3 is installed under the floor of the room, and the water collector 4 is installed in the basement below the floor.

[0015] When using it:

[0016] The density of the working fluid decreases after heating in the solar collector 1 and increases after cooling in the radiant heating coil 3. This density difference (thermosiphon effect) serves as the driving force for circulation. Combined with the installation positions of the solar collector 1, radiant heating coil 3, water distributor 2, and water collector 4, the working fluid (such as water) is heated in the solar collector 1, rises, enters the water distributor 2, and then enters the radiant heating coil 3 to dissipate heat into the room. After cooling down, the working fluid is collected by the water collector 4 and then flows back to the bottom of the solar collector 1 to be reheated, forming a continuous natural circulation loop and achieving the goal of zero energy consumption for indoor heating.

[0017] In order to promptly remove the air from this zero-energy solar radiant heating system and avoid air blockage that could affect its operation; such as Figure 1 As shown, according to another embodiment of the present invention, in the zero-energy solar radiant heating system, the outlet of the solar collector 1 and the inlet of the water distributor 2 are connected by a first main pipe 5, and an exhaust valve 6 is provided on the first main pipe 5.

[0018] In this embodiment, the exhaust valve 6 is located at the highest point of the first main pipe 5 or at a point where gas is prone to accumulate. Generally, the highest point of the first main pipe 5 is a point where gas is prone to accumulate. Therefore, the exhaust valve 6 can be specifically located at the highest point of the first main pipe 5 to promptly remove the gas accumulated in this zero-energy solar radiant heating system and ensure smooth circulation.

[0019] The exhaust valve 6 is an automatic exhaust valve, such as a high-temperature resistant float lever type or a composite automatic exhaust valve.

[0020] In order to stabilize the pressure of this zero-energy solar radiant heating system, such as Figure 1 As shown, according to another embodiment of the present invention, in the zero-energy solar radiant heating system, the inlet of the solar collector 1 and the outlet of the water collector 4 are connected by a second main pipe 7, and a feed pipe is connected to the second main pipe 7, and a regulating valve 8 is provided on the feed pipe.

[0021] During operation:

[0022] When the pressure of this zero-energy solar radiant heating system is insufficient, the regulating valve 8 is opened, and the feed pipe replenishes the working fluid to ensure that the system maintains a constant pressure and operates stably. The operating pressure of the system can be detected by a pressure sensor and fed back to the controller. The controller compares the operating pressure with a preset pressure value and then controls the opening of the regulating valve 8 to ensure that the operating pressure of the system remains at the preset value.

[0023] like Figure 1 As shown, according to another embodiment of the present invention, in the zero-energy solar radiant heating system, the outlet of the water distributor 2 is connected to the inlet of the radiant heating coil 3 through a first branch pipe 9, and the outlet of the radiant heating coil 3 is connected to the inlet of the water collector 4 through a second branch pipe 10.

[0024] In this embodiment, there are several radiant heating coils 3, and the inlets of the several radiant heating coils 3 are connected one-to-one with the several outlets of the manifold 2 through a first branch pipe 9. The outlets of the several radiant heating coils 3 are connected one-to-one with the several inlets of the collector 4 through a second branch pipe 10. This allows the several radiant heating coils 3 to be arranged side-by-side between the manifold 2 and the collector 4, and the several radiant heating coils 3 can be distributed in several rooms to simultaneously provide heating to several rooms.

[0025] The first branch pipe 9 and the second branch pipe 10 are both equipped with valves; specifically, the valves are ball valves 11. Here, the ball valves 11 are used to independently control the on / off state of several radiant heating coils 3, so as to adjust the usage of the radiant heating coils 3 according to actual usage needs and achieve zoned heating.

[0026] like Figure 1 As shown, according to another embodiment of the present invention, the zero-energy solar radiant heating system includes multiple solar collectors 1 arranged in parallel between the water distributor 2 and the water collector 4; the multiple solar collectors 1 are used in conjunction to improve the ability to obtain solar energy.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A zero energy solar radiation heating system, characterized in that, It includes a solar collector, a water distributor, radiant heating coils, and a water collector that are connected in sequence to form a loop structure; The bottom of the solar collector is higher than the highest point of the radiant heating coil, the water distributor is installed below the top outlet of the solar collector but above the highest point of the radiant heating coil, and the water collector is installed below the lowest point of the radiant heating coil.

2. A zero energy solar radiation heating system according to claim 1, wherein, The outlet of the solar collector and the inlet of the water distributor are connected by a first main pipe, and an air vent valve is installed on the first main pipe.

3. A zero energy solar radiation heating system according to claim 2, wherein, The exhaust valve is an automatic exhaust valve.

4. A zero energy solar radiation heating system according to claim 2 or 3, wherein, The exhaust valve is located at the highest point of the first main pipe or at a point where air is likely to accumulate.

5. A zero energy solar radiation heating system according to any one of claims 1-3, characterized in that, The inlet of the solar collector and the outlet of the water collector are connected by a second main pipe, which is connected to a feed pipe and equipped with a regulating valve.

6. A zero energy solar radiation heating system according to any one of claims 1-3, wherein, The outlet of the manifold is connected to the inlet of the radiant heating coil via a first pipe, and the outlet of the radiant heating coil is connected to the inlet of the collector via a second pipe.

7. A zero energy solar radiation heating system according to claim 6, wherein, The radiant heating coils are of several types, and the inlets of the several radiant heating coils are connected one-to-one with the outlets of the manifold through a first branch pipe, and the outlets of the several radiant heating coils are connected one-to-one with the inlets of the collector through a second branch pipe.

8. A zero-energy solar radiant heating system according to claim 7, characterized in that, Valves are installed on both the first and second pipes.

9. A zero energy solar radiation heating system according to claim 8, wherein, The valve is a ball valve.

10. A zero energy solar radiation heating system according to any one of claims 1-3, wherein, The solar collectors are multiple and arranged in parallel between the water distributor and the water collector.

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