Air type solar energy storage heating system

Abstract

The invention relates to the technical field of solar energy storage heating systems, and discloses an air type solar energy storage heating system which comprises an air type solar heat collection system, an energy storage water tank, an electromagnetic heater and a circulation control system. According to the air type solar heat collection system, air serves as a heat conduction working medium in the heat collection link, the problems of pipe explosion, pipe freezing, water leakage and the like are avoided, work is reliable, and maintenance is easy; the electromagnetic heater is arranged on a heating pipeline, is independently controlled to start and stop, can independently and directly supply heat, and also can be matched with the heat collection system or the energy storage water tank to work; the circulation control system is composed of a control box, a circulation water pump, an electric circulation centralized control valve, an electromagnetic valve and a matched pipeline, and the circulation control system can achieve various application models so as to adapt to different working conditions. According to the circulation control system, water in the heat exchange air box can be emptied, and the problem that the air type solar heat collection system of the heat exchange air box is frozen during standby is completely avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of solar energy storage heating systems, and in particular to an air-type solar energy storage heating system. Background Art

[0002] Solar heating system refers to a system that converts sunlight into heat energy through a collector and uses it as a heat source to heat the room. Solar energy is an inexhaustible clean energy source, and solar heating has a place in the heating market in northern my country. However, there are two problems with the existing solar heating system, which restricts the promotion and application of solar heating.

[0003] First, traditional solar heating generally uses water as the working medium. In winter, when there is sunlight, the glass heat collector directly heats the water in the tube and heats the room through the hot water circulation system. However, when there is no sun at night or on cloudy days, the water in the tube will cool down, causing the heat collector or circulation pipeline to freeze or even crack. Conversely, in the summer when heating is not required, the intense sunlight will cause the heat collector to overheat, causing the risk of the heat collector rupture. Moreover, once the heat collector ruptures, the circulating water of the system will leak, causing the entire system to fail to work. The existing solar heating system has a lot of maintenance work caused by problems such as pipe explosion, pipe rupture, and water leakage. In addition, water with drastic temperature changes can easily form scale on the inner wall of the heat collector, which will not only reduce the heat collection capacity but also cause the heat collector to be blocked. These problems have put the solar heating solution with water as the medium on the verge of elimination.

[0004] Secondly, the traditional solar heating system is simple in design, usually using a single circulation system of heat collector - water tank (with built-in electric heating rod) - heating terminal. In this way, the premise of heating is that the water in the water tank must be heated. After the sun rises in the morning, the solar collector has already started to work and heat, but at this time, the water temperature in the water tank is too low to start heating directly, and it takes several hours of delay (after the water tank is heated) to start heating. For this reason, the effective heating time of the existing solar heating system is greatly reduced.

[0005] Combining the above two points, solar heating has been neglected in the market after being popular in the past few years. The current air-type solar thermal collection technology with double-pass collector tubes as the core has solved the problems of frozen pipes, exploded pipes, and scale blockage caused by water media in the heat collection process. However, due to the lack of a perfect application system, the efficiency of solar heat utilization is low, and it still cannot be widely used in the field of household solar heating. Therefore, those skilled in the art have provided an air-type solar energy storage heating system to solve the problems raised in the above background technology. Summary of the invention

[0006] The object of the present invention is to provide an air-type solar energy storage heating system to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An air-type solar energy storage heating system includes an air-type solar collector system.

[0009] The outside of the air-type solar collector system is connected with upper and lower water circulation pipelines for heat collection. A drain solenoid valve is arranged on the outside of the lower water circulation pipeline for heat collection. A heat collection circulation pump is installed on the upper water circulation pipeline for heat collection. The other ends of the upper and lower water circulation pipelines for heat collection are connected with an electric circulation control solenoid valve. The outside of the electric circulation control valve is connected with water inlet and outlet circulation pipelines for a water tank. The other side of the water inlet and outlet circulation pipelines for the water tank is connected with a main body of an energy storage water tank. A hot water coil is installed inside the main body of the energy storage water tank. An air vent pipe of the energy storage water tank is arranged at the top of the main body of the energy storage water tank. The electric circulation control valve is also connected with heating supply and return water pipelines at the same time. An electromagnetic heater is arranged on the outside of the heating supply water pipeline. A heating circulation pump is arranged on the outside of the heating return water pipeline. An electric energy storage solenoid valve is installed between the heating supply and return water pipelines. The main body of the energy storage water tank is fixed on the ground, and the system control box is installed close to the wall. The air-type solar collector system includes a solar collector. A heat collection air inlet pipe is installed at the bottom of the solar collector. One side of the solar collector is connected with a heat collection air return pipe. A heat exchange air box is installed at the bottom of the heat collection air return pipe. The heat exchange copper pipes and a circulation pipeline arranged inside the heat exchange air box are connected.

[0010] The circulation pipeline includes an upper water pipe for heat collection. One end of the upper water pipe for heat collection is communicated with the heat exchange air box. A lower water pipe for heat collection is arranged on the outside of the heat exchange air box. The other ends of the upper and lower water pipes for heat collection are connected with the electric circulation control valve. The circulation pipeline includes a water inlet pipe for the energy storage water tank. One end of the water inlet pipe for the water tank is connected with the hot water storage tank. A water outlet pipe of the water tank is arranged on the outside of the hot water storage tank. The other ends of the water inlet and outlet pipes for the water tank are connected with the electric circulation control valve. The circulation pipeline includes a heating supply water pipe. The heating supply water pipe is connected with a heating terminal. A heating return water pipe is arranged at the heating terminal. The other ends of the heating supply and return water pipes are connected with the electric circulation control valve.

[0011] As a further scheme of the present invention: The electromagnetic heater is connected in series on the heating supply water pipe. The heating circulation pump is connected in series on the heating return water pipe. The heat collection circulation pump is installed on the upper water pipe for heat collection.

[0012] As a further scheme of the present invention: The electric energy storage solenoid valve and the heating terminal are installed in parallel between the heating supply water pipe and the heating return water pipe. The drain solenoid valve is installed between the lower water pipe for heat collection and the air vent pipe of the energy storage water tank.

[0013] As a further solution of the present invention: The circulating pipeline is connected in parallel with the electric heat storage solenoid valve. When the electric heat storage solenoid valve is closed, the hot water in the circulating pipeline normally flows through the heating terminal to complete heating. When the electric heat storage solenoid valve is opened, the hot water returns to the heating return water pipe through the electric heat storage solenoid valve.

[0014] As a further solution of the present invention: When the evacuation solenoid valve connected between the lower heat collection water pipe and the ventilation pipe of the energy storage water tank is closed, the electric circulating control valve, the upper heat collection water pipe, the heat exchange air box and the lower heat collection water pipe form a closed water circuit.

[0015] As a further solution of the present invention: When the evacuation solenoid valve is opened, air can enter the lower heat collection water pipe from the ventilation pipe of the energy storage water tank through the evacuation solenoid valve.

[0016] As a further solution of the present invention: An internal blower is provided in the heat exchange air box to drive air to circulate between the solar collector and the heat exchange air box.

[0017] As a further solution of the present invention: Two external connection ports are provided on both sides and the back of the electric circulating control valve. The two external connection ports on one side of the electric circulating control valve are respectively connected to the heat exchange air box through the upper heat collection water pipe and the lower heat collection water pipe.

[0018] As a further solution of the present invention: The two external connection ports on one side of the electric circulating control valve are respectively connected to the heating supply water pipe and the heating return water pipe. The two external connection ports on the back of the electric circulating control valve are respectively connected to the main body of the energy storage water tank through the water inlet pipe and the water outlet pipe of the energy storage water tank.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The air-type solar heat collection system installed outdoors uses air as the heat conduction working medium, and combined with the evacuation design of the system, it completely realizes anti-freezing in the outdoor pipelines and equipment of the system in the non-working state. During the working process, it eliminates the two problems that plague traditional solar heating, namely, the explosion of the heat collection pipes caused by drastic temperature changes and the blockage caused by water scale. Even if the system has a situation of breakage and leakage of the heat collection pipes or pipelines due to other reasons, it will not affect the operation of the entire system, and the maintenance only requires replacing the damaged heat collection pipes separately or repairing and sealing the damaged parts; through the cooperation of the electric circulating control valve, the water pump and the solenoid valve of the system, the system can automatically realize multiple application models to adapt to different working conditions. Description of the Drawings

[0021] Figure 1It is a schematic structural diagram of an air-type solar energy storage heating system;

[0022] Figure 2 It is the first part of the schematic diagram of the basic working cycle in the air-type solar energy storage heating system. The heat collection cycle, energy storage cycle, and heating cycle of the system are expressed by thick arrow lines;

[0023] Figure 3 It is the second part of the schematic diagram of the basic working cycle in the air-type solar energy storage heating system. The electromagnetic heating energy storage cycle is expressed by thick arrow lines;

[0024] Figure 4 It is the third part of the schematic diagram of the basic working cycle in the air-type solar energy storage heating system. The evacuation cycle is expressed by thick arrow lines;

[0025] Figure 5 It is a schematic diagram of the heat collection and energy storage state and electromagnetic heating state of the air-type solar energy storage heating system;

[0026] Figure 6 It is a schematic diagram of the heat collection and heating state of the air-type solar energy storage heating system;

[0027] Figure 7 It is a schematic diagram of the energy storage and heating state of the air-type solar energy storage heating system;

[0028] Figure 8 It is a schematic diagram of the electromagnetic energy storage state of the air-type solar energy storage heating system.

[0029] In the figure: 1. Air-type solar heat collection system; 11. Solar collector; 12. Heat collection inlet air duct; 13. Heat collection return air duct; 14. Heat exchange air box; 15. Heating terminal; 2. Main body of energy storage water tank; 21. Hot water coil; 22. Vent pipe of energy storage water tank; 3. Electric circulating control valve; 4. Electromagnetic heater; 5. Heat collection circulating pump; 6. Heating circulating pump; 7. Electric energy storage solenoid valve; 8. Evacuation solenoid valve; 9. Circulation pipeline; 91. Heat collection upper water pipe; 92. Heat collection lower water pipe; 93. Energy storage water tank inlet pipe; 94. Energy storage water tank outlet pipe; 95. Heating supply water pipe; 96. Heating return water pipe; 10. System control box. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-8, in the embodiment of the present invention, an air-type solar energy storage heating system includes an air-type solar collector system 1,

[0032] The outside of the air-type solar collector system 1 is connected with upper and lower heat collection water circulation pipelines 91 and 92. A drain solenoid valve 8 is arranged on the outside of the lower heat collection water circulation pipeline 92. A heat collection circulation pump is installed on the upper heat collection water circulation pipeline 91. The other ends of the upper and lower heat collection water circulation pipelines 91 and 92 are connected with an electric circulation control solenoid valve 3. The outside of the electric circulation control valve 3 is connected with water inlet and outlet circulation pipelines 93 and 94 of the water tank. The other side of the water inlet and outlet circulation pipelines of the water tank is connected with a main energy storage water tank 2. A hot water coil 21 is installed inside the main energy storage water tank 2. An energy storage water tank ventilation pipe 22 is arranged at the top of the main energy storage water tank. The electric circulation control valve 3 is also connected with heating supply and return water pipelines 95 and 96 at the same time. An electromagnetic heater 4 is arranged on the outside of the heating supply water pipeline 95. A heating circulation pump 6 is arranged on the outside of the heating return water pipeline 96. An electric energy storage solenoid valve 7 is installed between the heating supply and return water pipelines. The main energy storage water tank is fixed on the ground, and the system control box (10) is installed near the wall.

[0033] The air-type solar collector system 1 includes a solar collector 11. A heat collection air inlet pipe 12 is installed at the bottom of the solar collector. One side of the solar collector is connected with a heat collection return air pipe 13. A heat exchange air box 14 is installed at the bottom of the heat collection return air pipe 13. The heat exchange copper pipe and the circulation pipeline built in the heat exchange air box are connected. One end of the upper heat collection water pipe 91 is communicated with the heat exchange air box 14. A lower heat collection water pipe 92 is connected to the outside of the heat exchange air box 14. The other ends of the upper and lower heat collection water pipes are connected with the electric circulation control valve 3. One end of the water inlet pipe 93 of the water tank is connected with the hot water storage tank 2. A water outlet pipe 94 of the water tank is arranged on the outside of the hot water storage tank 2. The other ends of the water inlet and outlet pipes of the water tank are connected with the electric circulation control valve 3. The heating supply water pipe 95 is connected with a heating terminal 15. The heating terminal 15 is connected with the heating return water pipe. The other ends of the heating supply and return water pipes are also connected with the electric circulation control valve 3.

[0034] The electromagnetic heater 4 is connected in series on the heating supply water pipe 95. The heating circulation pump 6 is connected in series on the heating return water pipe 96. The heat collection circulation pump 5 is installed on the upper heat collection water pipe 91. The electric energy storage solenoid valve 7 and the heating terminal 15 are installed in parallel between the heating supply water pipe 95 and the heating return water pipe 96. The drain solenoid valve 8 is installed between the lower heat collection water pipe 92 and the energy storage water tank ventilation pipe 22.

[0035] When the electric energy storage heating solenoid valve 7 is closed, the hot water in the heating water supply circulation pipeline 95 normally flows through the heating terminal 15 to complete heating. When the electric energy storage heating solenoid valve 7 is opened, the hot water returns to the heating return water pipe 96 through the electric energy storage heating solenoid valve 7 and heating stops. This working state is used when the electromagnetic heater 4 separately heats the water tank to avoid the state of excessive indoor temperature caused by electromagnetic heating.

[0036] When the drain solenoid valve 8 is closed, the electric circulating control valve 3, the collector upper water pipe 91, the heat exchange air box 14 and the collector lower water pipe 92 form a closed water circuit; when the drain solenoid valve 8 is opened, air can enter the collector lower water pipe 92 from the energy storage water tank vent pipe 22 through the drain solenoid valve 8. This working state is used when the heat exchange air box 14 is drained at night or on cloudy days.

[0037] An internal fan is provided in the heat exchange air box 14 to drive air to circulate between the solar collector 11 and the heat exchange air box 14.

[0038] Two external connection ports are provided on both sides and the back of the electric circulating control valve 3: the two external connection ports on one side of the electric circulating control valve 3 are respectively connected to the heat exchange air box 14 through the collector upper water pipe 91 and the collector lower water pipe 92; the two external connection ports on the other side of the electric circulating control valve 3 are respectively connected to the heating water supply pipe 95 and the heating return water pipe 96, and form a loop through the heating terminal 15 or the heat storage solenoid valve 7; the two external connection ports on the back of the electric circulating control valve 3 are respectively connected to the energy storage water tank main body 2 through the energy storage water tank inlet pipe 93 and the energy storage water tank outlet pipe 94.

[0039] By changing the working state of the electric circulating control valve 3, the connection relationship of the pipelines connected to it can be switched, so as to form a variety of circulating working models, so as to adapt to various working conditions of different seasons, different time periods and different user requirements at the heating site.

[0040] Compared with the prior art, the beneficial effects of the present invention are two points:

[0041] First, the air-type solar heat collection system installed outdoors uses air as the heat conduction working medium, and combined with the drain design of the system, the outdoor pipelines and equipment of the system are completely freeze-proof in the non-working state. During the working process, the problems of tube explosion caused by drastic temperature changes of the collector tubes and blockage by water scale, which plague traditional solar heating, are eliminated. Even if the collector tubes or pipelines are damaged and leaked due to other reasons in the system, it will not affect the operation of the entire system, and the repair only requires replacing the damaged collector tubes separately or repairing and sealing the damaged parts; second, through the cooperation of the system's electric circulating control valve, the system's water pump and solenoid valves, the system can automatically achieve a variety of application models to adapt to different working conditions.

[0042] The working principle of the present invention is as follows: After the air-type solar collector 11 is irradiated by the sun, it will convert solar energy into heat energy, thereby heating the air inside it. There is a centrifugal fan in the heat exchange air box 14 that can drive the air to circulate between the air-type solar collector 11 and the heat exchange air box 14. When the air heated by the air-type solar collector 11 circulates through the copper tube fin heat exchanger built in the heat exchange air box 14, it will transfer heat to the water in the copper tube, thus forming a heat collection air cycle. The copper tubes of the copper tube fin heat exchanger built in the heat exchange air box 14 are connected through the heat collection upper water pipe 91, the heat collection lower water pipe 92 and the electric circulating control valve 3 to form a heat collection cycle (please refer to Figure 2 ). When the heat collection pump on the heat collection upper water pipe 91 starts, it will drive the water in the pipeline to flow upward through the heat exchanger copper tube to complete the circulating heating of the water; the electric circulating control valve 3 is connected to the energy storage water tank main body 2 through the water tank inlet pipe 93 and the water tank outlet pipe 94 to form an energy storage cycle (please refer to Figure 2 ); the electric circulating control valve 3 is connected to the heating supply water pipe 95 and the heating return water pipe 96 to the heating terminal 15 to form a heating cycle (please refer to Figure 2 ). The heating circulating pump 6 installed on the heating return water pipe 96 provides power for the water flow to flow in the heating cycle; the electromagnetic heater 4 is connected in series on the heating supply water pipe 95 and can independently heat the water in the pipeline to form auxiliary heating; when the electric energy storage solenoid valve 7 connected in parallel between the heating supply water pipe 95 and the heating return water pipe 96 is opened, the water that was originally going to flow through the heating terminal 15 will directly flow to the heating return water pipe 96 through the electric energy storage solenoid valve 7 nearby, forming an electromagnetic hot water cycle (please refer to Figure 3 ), so that the electromagnetic heater can independently heat the water in the water tank to realize valley electricity energy storage; when the heat collection cycle and the energy storage cycle are connected through the electric circulating control valve 3 and the heat collection circulating pump 5 is in a stopped state, when the drain solenoid valve 8 installed between the vent hole 22 of the energy storage water tank main body 2 and the heat collection lower water pipe 92 is opened, because the position of the vent hole 22 of the energy storage water tank main body 2 is higher than the liquid level position in the energy storage water tank main body 2, the atmospheric pressure will drive the air to enter the heat exchange air box 14 through the vent hole 22, the drain solenoid valve 8 and the heat collection lower water pipe 92, discharge the water in the copper tube of the heat exchange air box 14, and flow back to the water tank through the heat collection upper water pipe 91. This process is the draining process of the heat exchange air box 14, also known as the drain cycle (please refer to Figure 4 ); the heat collection cycle, the energy storage cycle, the heating cycle, the electromagnetic hot water cycle and the drain cycle described above constitute the 5 basic working cycles of this device;

[0043] By controlling the electric circulating control valve 3, the six pipe orifices of the electric circulating control valve 3 can be in different conduction states, so that different connection states of the heat collection cycle, the energy storage cycle and the heating cycle can be realized, and then different system working application states can be formed:

[0044] 1. Heat collection and energy storage state of the solar heating water tank (please refer to Figure 5 )

[0045] The two outer connection ports 1 and 2 and the two outer connection ports 3 and 4 of the electric circulating control valve 3 are connected. At this time, it is called the first working condition of the electric circulating control valve. The electric circulating control valve 3 combines the heat collection cycle and the energy storage cycle into a large cycle. The water in the water tank is pushed by the heat collection circulation pump 5, circulated through the air-type solar heat collection system 1 for heating and then returned to the water tank 2. This cycle works continuously, and the solar energy will gradually heat the water in the water tank, forming the storage of solar heat energy;

[0046] 2. Electromagnetic heating and separate heating electromagnetic heating state (please refer to Figure 5 )

[0047] When the electric circulating control valve 3 is in the first working condition, the electric circulating control valve will also conduct the heating supply and return pipelines at the same time. The water in the heating terminal 15, the heating supply pipe 95 and the heating return pipe 96 can be driven by the heating circulation pump 6 to flow in the cycle. At this time, when the electromagnetic heater 4 is turned on, the electromagnetic heater 4 can achieve independent heating;

[0048] 3. Heat collection and heating state of direct solar heating (please refer to Figure 6 )

[0049] The two outer connection ports 1 and 2 and the two outer connection ports 6 and 5 of the electric circulating control valve 3 are connected. At this time, it is called the second working condition of the electric circulating control valve. The heat collection cycle and the heating cycle are combined into a new large cycle. The water in the heating terminal 15 and the pipeline is jointly pushed by the heating circulation pump 6 and the heat collection circulation pump 5 to circulate through the air-type solar heat collection system 1 for heating and dissipate heat at the heating terminal 15, which realizes direct solar heating; when the light is insufficient and the solar heat production is not enough to supply heating, the electromagnetic heater 4 can also be turned on to realize the combined heating of solar energy and the electromagnetic heater 4;

[0050] 4. Energy storage heating state of the energy storage water tank (please refer to Figure 7 )

[0051] When the two outer connection ports 3 and 4 and the two outer connection ports 5 and 6 of the electric circulating control valve 3 are connected, at this time, it is called the third working condition of the electric circulating control valve. At this time, the energy storage cycle and the heating cycle are combined into another new large cycle. The hot water in the energy storage water tank is pushed by the heating circulation pump 6 to circulate through the heating terminal 15, which realizes the direct heating of the main body 2 of the energy storage water tank alone; when the hot water temperature of the main body 2 of the energy storage water tank is not enough to supply heating, the electromagnetic heater 4 can also be turned on to realize the combined heating of the main body 2 of the energy storage water tank and the electromagnetic heater 4;

[0052] 5. Electromagnetic energy storage state of the electromagnetic heating energy storage water tank (please refer to Figure 8)

[0053] When the electric circulating centralized control valve 3 is in the third working condition, the electric heat storage solenoid valve 7 is opened. The water flow that originally passed through the heating terminal 15 will directly flow through the electric heat storage solenoid valve 7 and return to the water tank through the heating return water pipe 96. In this way, the water in the energy storage water tank main body 2 will be circulated through the electromagnetic heater 4 for heating under the drive of the heating circulating pump 6, so as to complete the separate heating of the energy storage water tank main body 2 by the electromagnetic heater 4;

[0054] 6. The evacuation state of the heat exchange air box (please refer to Figure 4 )

[0055] When the evacuation solenoid valve 8 is opened when the electric circulating centralized control valve 3 is in the first working position and the heat collection circulating pump 5 is in the stopped state, because the position of the vent pipe hole 22 of the energy storage water tank main body 2 is higher than the liquid level position in the energy storage water tank main body 2, the atmospheric pressure will drive the air to enter the heat exchange air box 14 through the vent pipe hole 22, the evacuation solenoid valve 8, and the heat collection down water pipe 92, discharge the water in the copper pipe of the heat exchange air box 14, and flow back to the water tank through the heat collection up water pipe 91, so as to realize the evacuation of the heat exchange air box 14.

[0056] The air-type solar heat collection system 1 installed outdoors uses air as the heat conduction working medium, and combined with the evacuation design of the system, it completely realizes antifreeze in the outdoor pipelines and equipment of the system in the non-working state, avoiding the problems of freezing and even cracking of the heat collection pipes, pipelines, and heat exchangers that are prone to occur in traditional solar heating systems. During the working process, the outdoor heat collection system does not use water, and fundamentally eliminates the two problems that plague traditional solar heating, namely, the explosion of the heat collection pipes caused by drastic temperature changes and the blockage of the pipes by scale. Even if the system has a situation of breakage and leakage of the heat collection pipes or pipelines due to other reasons, it will not affect the operation of the entire system, and the maintenance only requires replacing the damaged heat collection pipes separately or repairing and sealing the damaged parts. Through the cooperation of the system electric circulating centralized control valve 3, the system water pump, and the solenoid valves, the system can automatically achieve multiple application states to adapt to different working conditions, realizing the direct utilization of the heat output by the solar energy or storing it in the energy storage water tank and then utilizing it, improving the actual utilization rate of the heat output by the solar heat collector; in addition, the energy storage water tank can be electrically heated during the valley electricity period, so that the heat can be stored through the energy storage water tank, realizing valley electricity energy storage and further reducing the system usage cost; finally, the electric auxiliary heating method adopted by the system is electromagnetic heating with the highest thermal efficiency, further reducing the usage cost.

[0057] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. Air-type solar energy storage heating system, including an air-type solar collector system (1), characterized in that, The outside of the air-type solar heat collection system (1) is connected with heat collection upper water pipes (91), (92). A drain solenoid valve (8) is arranged on the outside of the heat collection lower water pipe (92). A heat collection circulation pump (5) is installed on the outside of the heat collection upper water pipe (91). The other ends of the heat collection upper water pipes (91), (92) are connected with an electric circulation control valve (3). The outside of the electric circulation control valve (3) is connected with energy storage water tank inlet pipes (93), (94). The other sides of the energy storage water tank inlet pipes (93), (94) are connected with an energy storage water tank main body (2). A hot water coil (21) is installed inside the energy storage water tank main body (2). An energy storage water tank ventilation pipe (22) is arranged at the top of the energy storage water tank main body (2). The electric circulation control valve (3) is simultaneously connected with pipelines (95), (96). An electromagnetic heater (4) is arranged on the outside of the heating water supply pipe (95). A heating circulation pump (6) is arranged on the outside of the heating return pipe (96). An electric heat storage solenoid valve (7) is installed between the heating water supply pipe (95) and the heating return pipe (96). The energy storage water tank main body (2) is fixed on the ground, and the system control box (10) is installed near the wall. The air-type solar heat collection system (1) includes a solar heat collector (11). A heat collection air inlet pipe (12) is installed at the bottom of the solar heat collector (11). One side of the solar heat collector (11) is connected with a heat collection air return pipe (13). A heat exchange air box (14) is installed at the bottom of the heat collection air return pipe (13). The heat exchange copper pipe and the circulation pipeline (9) arranged inside the heat exchange air box (14) are connected.

2. The air-type solar energy storage heating system according to claim 1, wherein The electric heat storage solenoid valve (7) and the heating terminal (15) are installed in parallel between the heating water supply pipe (95) and the heating return pipe (96). The drain solenoid valve (8) is installed between the heat collection lower water pipe (92) and the energy storage water tank ventilation pipe (22).

3. The air-type solar energy storage heating system according to claim 1, characterized in that For the circulation pipeline (9) and the electric heat storage solenoid valve (7), when the electric heat storage solenoid valve (7) is closed, the hot water in the circulation pipeline (9) normally flows through the heating terminal (15) to complete heating. When the electric heat storage solenoid valve (7) is opened, the hot water directly returns to the heating return pipe (96) through the electric heat storage solenoid valve (7).

4. The air-type solar energy storage heating system according to claim 1, wherein, When the drain solenoid valve (8) connected between the heat collection lower water pipe (92) and the energy storage water tank ventilation pipe (22) is closed, the electric circulation control valve (3), the heat collection upper water pipe (91), the heat exchange air box (14) and the heat collection lower water pipe (92) form a closed water circuit.

5. The air-type solar energy storage heating system according to claim 1, characterized in that, When the heat exchange air box (14) of the air-type solar heat collection system (1) and the energy storage water tank main body (2) are connected through the electric circulation control valve (3), when the drain solenoid valve (8) is opened, air can enter the heat collection lower water pipe (92) from the energy storage water tank ventilation pipe (22) through the drain solenoid valve (8).

6. The air-type solar energy storage heating system according to claim 1, characterized in that Both sides and the back of the electric circulating central control valve (3) are provided with two external connection ports. The two external connection ports on one side of the electric circulating central control valve (3) are respectively communicated with the heat collection upper water pipe (91) and the heat collection lower water pipe (92) with the heat exchange air box (14).

7. The air-type solar energy storage heating system according to claim 8, wherein The two external connection ports on one side of the electric circulating central control valve (3) are respectively communicated with the heating supply water pipe (95) and the heating return water pipe (96).

8. The air-type solar energy storage heating system according to claim 1, wherein, The two external connection ports on the back of the electric circulating central control valve (3) are respectively communicated with the energy storage water tank inlet pipe (93) and the energy storage water tank outlet pipe (94) with the energy storage water tank body (2).

9. The air-type solar energy storage heating system according to claim 1, wherein, The electromagnetic heater (4) is connected in series on the heating supply water pipe (95). The electromagnetic heater (4) completely independently controls the start and stop, and can either supply heat independently or supply heat together with the solar collector (11) or the energy storage water tank body (2).

10. The air-type solar energy storage heating system according to claim 1, wherein, An internal fan capable of driving air to circulate between the solar collector (11) and the heat exchange air box (14) is arranged in the heat exchange air box (14). The air-type solar heat collection system (1) uses air as the heat conduction medium. The air heated by the sun is driven by the internal fan of the heat exchange air box (14) to flow through the copper tube fin heat exchanger built in the heat exchange air box (14) and conduct heat to the water.

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