Solar energy and air energy combined heating and cooling system

Abstract

The utility model discloses a solar energy and air energy combined heating and cooling system which comprises a solar heat collection and storage integrated device, a cooling and heating heat pump unit, a first heat exchanger, a second heat exchanger, a heat preservation water tank, a water distribution and collection device, a fan coil and a controller. A first heat exchange coil pipe is arranged in the first heat exchanger, the solar heat collection and storage integrated device is connected with the first heat exchange coil pipe, a second heat exchange coil pipe is arranged in the second heat exchanger, and the cold and warm heat pump unit is connected with the second heat exchange coil pipe. Therefore, heat exchange between an anti-freezing solution in the solar heat collection and storage integrated device and water in the first heat exchanger is achieved, and heat exchange or heat absorption between a refrigerant in the cold and warm heat pump unit and water in the second heat exchanger is achieved. The first heat exchanger and the second heat exchanger are connected with the heat preservation water tank, the heat preservation water tank is used for storing heat-exchanged water in a heat preservation mode, the sub-catchment device is connected with the heat preservation water tank, and hot water is introduced into the sub-catchment device for heat supply. And the second heat exchanger is connected with the fan coil, and cold water subjected to heat absorption is introduced for cooling.

Description

Technical Field

[0001] The utility model relates to the technical field of solar energy combined with air energy heating and cooling, in particular to a solar energy combined with air energy heating and cooling system. Background Art

[0002] The sustainable development of the economy and society has led to an increasing demand for energy. Due to the excessive development and use of traditional fossil energy, problems such as insufficient energy reserves and environmental pollution have been caused. my country's heating industry is heavily dependent on fossil energy. In recent years, fossil energy has accounted for as much as 98% of urban centralized heating consumption. The use of renewable energy can effectively alleviate the current contradiction. Energy sources such as solar energy and wind energy are severely constrained by environmental factors and are intermittent and unbalanced, and cannot meet users' all-day heating requirements. Therefore, efficient energy storage methods and devices have been widely studied by scholars at home and abroad. Common energy storage methods include sensible heat storage, latent heat storage, and chemical reaction storage. Phase change materials (PCM) have been studied and applied in various fields due to their advantages such as high energy storage density and small volume change rate, and have become a research hotspot in recent years. The photothermal heating system based on phase change heat storage combined with air source heat pump is an efficient heating solution. Utility Model Content

[0003] The purpose of this invention is to provide a solar energy combined with air energy heating and cooling system to solve the problems of the existing technology.

[0004] The technical solution adopted to achieve the purpose of this utility model is:

[0005] A solar energy combined with air energy heating and cooling system, comprising a solar energy heat collection and heat storage integrated device, a cooling and heating heat pump unit, a first heat exchanger, a second heat exchanger, a heat preservation water tank, a manifold, a fan coil unit and a controller;

[0006] The first heat exchanger is provided with a first heat exchange coil, and the solar energy heat collection and heat storage integrated device is connected to the first heat exchange coil through a first input pipeline; the first heat exchange coil is connected to the solar energy heat collection and heat storage integrated device through a first output pipeline, and the first output pipeline is provided with a first transmission pump for pumping the antifreeze liquid after heat exchange with the water in the first heat exchanger into the solar energy heat collection and heat storage integrated device to absorb solar energy heat again;

[0007] The first heat exchanger is connected to the insulated water tank through a second input pipe; the insulated water tank is connected to the manifold through a third input pipe, and the third input pipe is provided with a second transmission pump for pumping hot water in the insulated water tank into the manifold for heating; the manifold is connected to the insulated water tank through a second output pipe, and the insulated water tank is connected to the first heat exchanger through a third output pipe;

[0008] The second heat exchanger is provided with a second heat exchange coil, and the cooling and heating heat pump unit is connected to the second heat exchange coil through a fourth input pipe; the second heat exchange coil is connected to the cooling and heating heat pump unit through a fourth output pipe; the second heat exchanger is connected to the insulated water tank through a fifth input pipe; the insulated water tank is connected to the second heat exchanger through a fifth output pipe; the second heat exchanger is connected to the fan coil through a sixth output pipe; the fan coil is connected to the second heat exchanger through a sixth input pipe, and a third transmission pump is provided on the sixth input pipe.

[0009] In the above technical solution, the first input pipeline is provided with a first valve for controlling the input of antifreeze liquid into the first heat exchange coil; the first output pipeline is provided with a second valve for controlling the antifreeze liquid to be pumped into the solar energy thermal collection and storage integrated device.

[0010] In the above technical solution, the integrated solar thermal collection and storage device is a box structure, with a transparent glass cover on the top, a heat absorption layer in the middle, a paraffin phase change heat storage layer at the bottom, and a thermal insulation protective shell at the bottom. The heat collection pipe for storing antifreeze is located in the heat absorption layer.

[0011] In the above technical solution, the second input pipeline is provided with a third valve for controlling the hot water to flow into the insulated water tank; the third input pipeline is provided with a fourth valve for controlling the hot water to be pumped into the manifold; the second output pipeline is provided with a fifth valve for controlling the water after heating to flow into the insulated water tank; the third output pipeline is provided with a sixth valve for controlling the water after heating to flow into the first heat exchanger.

[0012] In the above technical solution, the fourth input pipeline is provided with a seventh valve for controlling the input of the refrigerant absorbing or releasing heat into the second heat exchange coil; the fourth output pipeline is provided with an eighth valve for controlling the input of the refrigerant after heat exchange or cooling into the heating and cooling heat pump unit.

[0013] In the above technical solution, the fifth input pipeline is provided with a ninth valve for controlling the input of hot water into the insulated water tank after heat exchange; the fifth output pipeline is provided with a tenth valve for controlling the water after heating to enter the second heat exchanger; the sixth input pipeline is provided with a twelfth valve for controlling whether cold water is pumped into the fan coil unit, and the sixth output pipeline is provided with an eleventh valve for controlling whether the water after cooling is pumped into the second heat exchanger.

[0014] In the above technical solution, the third valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve and the tenth valve are each provided with a temperature sensor for real-time monitoring of the temperature of the antifreeze liquid, refrigerant or water in the pipeline, and each temperature sensor is connected to the controller.

[0015] In the above technical solution, a third heat exchange coil is arranged in the insulated water tank, and the third heat exchange coil is connected to the water supply source through a seventh input pipe; the third heat exchange coil is connected to the water supply tank through a seventh output pipe.

[0016] In the above technical solution, the seventh input pipeline is provided with a thirteenth valve for controlling the flow of normal temperature water into the third heat exchange coil.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The heating and cooling system of the utility model utilizes the combination of a solar energy heat collection and storage device (solar energy) and a cooling and heating heat pump unit (air energy) to provide heating in winter, cooling in summer, and domestic hot water in all seasons for rural residential buildings; it realizes the efficient utilization and storage of renewable resources of solar energy and air energy.

[0019] 2. During heating, the antifreeze absorbs the heat collected by the solar thermal collector and heat storage device, enters the first heat exchanger through the pipeline to release heat, and then returns to the solar thermal collector and heat storage device to continue absorbing solar heat. The hot water coming out of the first heat exchanger enters the insulated water tank, and then enters the manifold through the pipeline. The return water enters the first heat exchanger to continue absorbing heat, completing the heating cycle.

[0020] During heating, the heat pump unit absorbs heat from the air, enters the second heat exchanger through the pipe to release heat, and then returns to the heat pump unit to continue absorbing heat from the air. The hot water from the second heat exchanger enters the insulated water tank, enters the manifold through the pipe, and the return water enters the heat exchanger to continue absorbing heat, completing the heating cycle.

[0021] When providing heat, the system gives priority to the solar thermal collection and storage heating system. When the solar thermal collection and storage heating system cannot reach the required temperature for heating, the cooling and heating heat pump unit is started to assist in providing heat energy.

[0022] 3. During cooling, the heat pump absorbs the heat of the water in the second heat exchanger, enters the heat pump through the pipeline to release the heat to the air, and then returns to the second heat exchanger to continue absorbing heat; the cold water coming out of the heat exchanger enters the fan coil for cooling, and then returns to the heat exchanger to continue being cooled, completing the cooling cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is the structural diagram of the solar energy combined with air energy heating and cooling system of the present utility model.

[0024] In the figure: 1-solar heat collection and heat storage integrated device, 1-1-first input pipeline, 1-1-1-first valve, 1-2-first output pipeline, 1-2-1-second valve, 1-3-first transmission pump, 2-cold and warm heat pump unit, 2-1-fourth input pipeline, 2-1-1-seventh valve, 2-2-fourth output pipeline, 2-2-1-eighth valve, 3-first heat exchanger, 3-1-second input pipeline, 3-2-third output pipeline, 3-2-1-sixth valve, 3-3-first heat exchange coil, 4-second heat exchanger, 4-1-second heat exchange coil, 4-2- The fifth input pipeline, 4-2-1-the ninth valve, 4-3-the fifth output pipeline, 4-3-1-the tenth valve, 4-4-the sixth output pipeline, 4-4-1-the eleventh valve, 4-5-the sixth input pipeline, 4-5-1-the twelfth valve, 4-6-the third transmission pump, 5-the insulated water tank, 5-1-the third input pipeline, 5-2-the second transmission pump, 5-3-the second output pipeline, 5-3-1-the fifth valve, 5-4-the third heat exchange coil, 5-5-the seventh input pipeline, 5-5-1-the thirteenth valve, 6-manifold, 7-fan coil, 8-controller. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Example 1

[0027] A solar energy combined with air energy heating and cooling system, see Figure 1 , including a solar energy heat collection and storage integrated device 1, a cooling and heating heat pump unit 2 (used to absorb heat from the air, or release the absorbed heat into the air), a first heat exchanger 3, a second heat exchanger 4, an insulated water tank 5, a manifold 6, a fan coil 7 and a controller 8.

[0028] The first heat exchanger 3 is provided with a first heat exchange coil 3-3, and the solar energy heat collection and heat storage integrated device 1 is connected to the first heat exchange coil 3-3 through a first input pipeline 1-1, which is used to transfer the antifreeze liquid that absorbs solar heat in the solar energy heat collection and heat storage integrated device 1 to the first heat exchange coil 3-3 and exchange heat with the water in the first heat exchanger 3; the first heat exchange coil 3-3 is connected to the solar energy heat collection and heat storage integrated device 1 through a first output pipeline 1-2, and the first output pipeline 1-2 is provided with a first transmission pump 1-3, which is used to pump the antifreeze liquid after heat exchange with the water in the first heat exchanger 3 into the solar energy heat collection and heat storage integrated device 1 to absorb solar heat again. The first input pipeline 1-1 is provided with a first valve 1-1-1, which is used to control the input of the antifreeze liquid in the first heat exchange coil 3-3; the first output pipeline 1-2 is provided with a second valve 1-2-1, which is used to control the pumping of the antifreeze liquid in the solar energy heat collection and heat storage integrated device 1. Among them, the solar energy heat collection and heat storage integrated device 1 is a box structure, with a transparent glass cover on the top, a heat absorption layer in the middle, a paraffin phase change heat storage layer at the bottom, and a thermal insulation protective shell layer at the bottom. The heat collection pipe for storing antifreeze is located in the heat absorption layer.

[0029] The first heat exchanger 3 is connected to the insulated water tank 5 through the second input pipe 3-1, which is used to pass the hot water after heat exchange in the first heat exchanger 3 into the insulated water tank 5 for heat preservation and storage; the insulated water tank 5 is connected to the manifold 6 through the third input pipe 5-1, and the third input pipe 5-1 is provided with a second transmission pump 5-2, which is used to pump the hot water in the insulated water tank 5 into the manifold 6 for heating; the manifold 6 is connected to the insulated water tank 5 through the second output pipe 5-3, and the insulated water tank 5 is connected to the first heat exchanger 3 through the third output pipe 3-2, which is used to pass the heated water into the insulated water tank 5 and enter the first heat exchanger 3 through the third output pipe 3-2 for heat exchange again. The second input pipeline 3-1 is provided with a third valve 3-1-1 for controlling the supply of hot water into the insulated water tank 5; the third input pipeline 5-1 is provided with a fourth valve 5-1-1 for controlling the insulated water tank 5 to pump hot water into the manifold 6; the second output pipeline 5-3 is provided with a fifth valve 5-3-1 for controlling the manifold 6 to supply heated water into the insulated water tank 5; the third output pipeline 3-2 is provided with a sixth valve 3-2-1 for controlling the insulated water tank 5 to supply heated water into the first heat exchanger 3.

[0030] The second heat exchanger 4 is provided with a second heat exchange coil 4-1, and the heat pump unit 2 is connected to the second heat exchange coil 4-1 through the fourth input pipe 2-1, which is used to transfer the refrigerant that absorbs heat in the heat pump unit 2 to the second heat exchange coil 4-1, and exchange heat with the water in the second heat exchanger 4 (or absorb the temperature of the water in the second heat exchanger 4 and cool the water); the second heat exchange coil 4-1 is connected to the heat pump unit 2 through the fourth output pipe 2-2, which is used to transfer the refrigerant after heat exchange with the water in the second heat exchanger 4 to the heat pump unit 2 to absorb the heat of the air again (or transfer the refrigerant after absorbing the temperature of the water in the second heat exchanger 4 to the heat pump unit 2 and release the absorbed heat to the air). Among them, the fourth input pipeline 2-1 is provided with a seventh valve 2-1-1, which is used to control the refrigerant that absorbs heat (or releases heat) to be input from the cooling and heating heat pump unit 2 to the second heat exchange coil 4-1; the fourth output pipeline 2-2 is provided with an eighth valve 2-2-1, which is used to control the refrigerant after heat exchange (or cooling) to be input from the second heat exchange coil 4-1 to the cooling and heating heat pump unit 2.

[0031] The second heat exchanger 4 is connected to the insulated water tank 5 through the fifth input pipe 4-2, which is used to transfer the hot water after heat exchange in the second heat exchanger 4 to the insulated water tank 5 for insulated storage; the insulated water tank 5 is connected to the second heat exchanger 4 through the fifth output pipe 4-3, which is used to pass the water after heating into the second heat exchanger 4 for heat exchange again; the second heat exchanger 4 is connected to the fan coil 7 through the sixth input pipe 4-5, which is used to transfer the cold water at the absorbed temperature in the second heat exchanger 4 to the fan coil 7 for cooling, and the fan coil 7 is connected to the second heat exchanger 4 through the sixth output pipe 4-4; the sixth input pipe 4-5 is provided with a third transmission pump 4-6, which is used to realize the circulation of water between the second heat exchanger 4 and the fan coil 7. Among them, the fifth input pipe 4-2 is provided with a ninth valve 4-2-1, which is used to control the input of water from the second heat exchanger 4 to the insulated water tank 5; the fifth output pipe 4-3 is provided with a tenth valve 4-3-1, which is used to control the passage of heated water from the insulated water tank 5 into the second heat exchanger 4; the sixth output pipe 4-4 is provided with an eleventh valve 4-4-1, which is used to control the input of water in the fan coil 7 into the second heat exchanger 4; the sixth input pipe 4-5 is provided with a twelfth valve 4-5-1, which is used to control the cold water in the second heat exchanger 4 to be pumped into the fan coil 7.

[0032] Example 2

[0033] On the basis of Example 1, a temperature sensor is correspondingly arranged on the third valve 3-1-1, the sixth valve 3-2-1, the seventh valve 2-1-1, the eighth valve 2-2-1, the ninth valve 4-2-1 and the tenth valve 4-3-1, and each temperature sensor is connected to the controller 8 for real-time monitoring of the temperature of the antifreeze, refrigerant or water in the pipeline, and sending the temperature to the controller 8 in real time. The controller 8 controls the corresponding valve to open or close according to the temperature of the antifreeze, refrigerant or water in the pipeline.

[0034] Example 3

[0035] On the basis of Example 1-2, a third heat exchange coil 5-4 is provided in the insulated water tank 5, and the third heat exchange coil 5-4 is connected to the water supply source (not marked in the figure) through the seventh input pipe 5-5, and is used to pass normal temperature water into the third heat exchange coil 5-4 to exchange heat with the hot water in the insulated water tank 5; the third heat exchange coil 5-4 is connected to the water supply tank through the seventh output pipe 5-3, and is used to pass the water after heat exchange into the water supply tank (not marked in the figure) to realize the supply of hot water.

[0036] The seventh input pipeline 5-5 is provided with a thirteenth valve 5-5-1 for controlling the flow of normal temperature water into the third heat exchange coil 5-4.

[0037] Example 4

[0038] Based on Examples 1-3, a solar energy combined with air energy heating and cooling method includes the following steps.

[0039] During heating, the solar thermal collection and heat storage integrated device 1 collects solar energy, and the antifreeze in the solar thermal collection and heat storage integrated device 1 absorbs heat. The first valve 1-1-1 is opened to transfer the antifreeze to the first heat exchange coil 3-3 through the first input pipe 1-1 to exchange heat with the water in the first heat exchanger 3, and the second valve 1-2-1 is opened to use the first transfer pump 1-3 to pump the antifreeze after heat exchange in the first heat exchange coil 3-3 through the first output pipe 1-2 into the solar thermal collection and heat storage integrated device 1 to continue absorbing heat.

[0040] The cooling and heating heat pump unit 2 absorbs heat from the air, and the refrigerant in the cooling and heating heat pump unit 2 absorbs heat. When the temperature sensor on the seventh valve 2-1-1 detects that the temperature of the refrigerant in the cooling and heating heat pump unit 2 reaches a preset temperature, the controller 8 controls the seventh valve 2-1-1 to open and transfers the refrigerant to the second heat exchange coil 4-1 through the fourth input pipe 2-1 to exchange heat with the water in the second heat exchanger 4. When the temperature sensor on the eighth valve 2-2-1 detects that the temperature of the antifreeze in the second heat exchange coil 4-1 reaches a preset temperature, the controller 8 controls the eighth valve 2-2-1 to open and inputs the antifreeze after heat exchange in the second heat exchange coil 4-1 into the cooling and heating heat pump unit 2 through the fourth output pipe 2-2 to continue heat exchange.

[0041] When the temperature sensor on the third valve 3-1-1 detects that the temperature of the water in the first heat exchanger 3 reaches the preset temperature, the controller 8 controls the third valve 3-1-1 to open, so that the hot water in the first heat exchanger 3 is input into the insulated water tank 5; at the same time, when the temperature sensor on the ninth valve 4-2-1 detects that the temperature of the water in the second heat exchanger 4 reaches the preset temperature, the controller 8 controls the ninth valve 4-2-1 to open, so that the hot water in the second heat exchanger 4 is input into the insulated water tank 5; when the temperature sensor on the fourth valve 5-1-1 detects that the temperature of the hot water in the insulated water tank 5 reaches the preset temperature, the controller 8 controls the fourth valve 5-1-1 to open and uses the second transmission pump 5-2 to pump the hot water in the water inlet tank into the manifold 6 through the third input pipe 5-1 for heating.

[0042] Open the fifth valve 5-3-1 to pass the heated water into the insulated water tank 5 through the second output pipe 5-3. When the temperature sensors on the sixth valve 3-2-1 and the tenth valve 4-3-1 detect that the temperature of the water in the water tank is lower than the preset temperature, the controller 8 controls the sixth valve 3-2-1 and / or the tenth valve 4-3-1 to open and pass the water in the insulated water tank 5 into the first heat exchanger 3 and / or the second heat exchanger 4 through the third output pipe 3-2 and / or the fifth output pipe 4-3 to continue heat exchange.

[0043] Open the thirteenth valve 5-5-1 to allow room temperature water to flow into the third heat exchange coil 5-4 through the seventh input pipe 5-5 to exchange heat with the hot water in the thermal insulation water tank 5, and pass the heat-exchanged water into the water supply tank through the seventh output pipe 5-3 to realize the supply of hot water.

[0044] During cooling, when the temperature sensor on the seventh valve 2-1-1 detects that the temperature of the refrigerant in the cooling and heating heat pump unit 2 reaches the preset temperature, the controller 8 controls the seventh valve 2-1-1 to open and transfers the refrigerant to the second heat exchange coil 4-1 through the fourth input pipe 2-1, absorbs the heat of the water in the second heat exchanger 4, and generates cold water. When the temperature sensor on the eighth valve 2-2-1 detects that the temperature of the refrigerant in the second heat exchange coil 4-1 reaches the preset temperature, the controller 8 controls the eighth valve 2-2-1 to open and inputs the refrigerant that has absorbed heat in the second heat exchange coil 4-1 into the cooling and heating heat pump unit 2 through the fourth output pipe 2-2 to release the absorbed heat into the air.

[0045] Open the twelfth valve 4-5-1 and use the third transfer pump 4-6 to input the cold water in the second heat exchanger 4 into the fan coil 7 for cooling, and open the eleventh valve 4-4-1 to pump the cooled water into the second heat exchanger 4 through the sixth output pipe 4-4 to continue to absorb heat and regenerate cold water.

[0046] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0047] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A solar energy combined with air energy heating and cooling system, characterized in that: It includes a solar heat collection and storage integrated device, a cooling and heating heat pump unit, a first heat exchanger, a second heat exchanger, a heat preservation water tank, a manifold, a fan coil unit and a controller; The first heat exchanger is provided with a first heat exchange coil, and the solar energy heat collection and heat storage integrated device is connected to the first heat exchange coil through a first input pipeline; the first heat exchange coil is connected to the solar energy heat collection and heat storage integrated device through a first output pipeline, and the first output pipeline is provided with a first transmission pump for pumping the antifreeze liquid after heat exchange with the water in the first heat exchanger into the solar energy heat collection and heat storage integrated device to absorb solar energy heat again; The first heat exchanger is connected to the insulated water tank through a second input pipe; the insulated water tank is connected to the manifold through a third input pipe, and the third input pipe is provided with a second transmission pump for pumping hot water in the insulated water tank into the manifold for heating; the manifold is connected to the insulated water tank through a second output pipe, and the insulated water tank is connected to the first heat exchanger through a third output pipe; The second heat exchanger is provided with a second heat exchange coil, and the cooling and heating heat pump unit is connected to the second heat exchange coil through a fourth input pipe; the second heat exchange coil is connected to the cooling and heating heat pump unit through a fourth output pipe; the second heat exchanger is connected to the insulated water tank through a fifth input pipe; the insulated water tank is connected to the second heat exchanger through a fifth output pipe; the second heat exchanger is connected to the fan coil through a sixth output pipe; the fan coil is connected to the second heat exchanger through a sixth input pipe, and a third transmission pump is provided on the sixth input pipe.

2. The solar energy combined with air energy heating and cooling system according to claim 1, characterized in that: The first input pipeline is provided with a first valve for controlling the input of antifreeze liquid into the first heat exchange coil; the first output pipeline is provided with a second valve for controlling the antifreeze liquid to be pumped into the solar energy heat collection and storage integrated device.

3. The solar energy combined with air energy heating and cooling system as claimed in claim 2, characterized in that: The solar thermal collection and storage integrated device is a box structure with a transparent glass cover on the top, a heat absorption layer in the middle, a paraffin phase change heat storage layer at the bottom, and a thermal insulation protective shell at the bottom. The heat collection pipe for storing antifreeze is located in the heat absorption layer.

4. The solar energy combined with air energy heating and cooling system as claimed in claim 3, characterized in that: The second input pipeline is provided with a third valve for controlling the hot water to flow into the insulated water tank; the third input pipeline is provided with a fourth valve for controlling the hot water to be pumped into the manifold; the second output pipeline is provided with a fifth valve for controlling the heated water to flow into the insulated water tank; the third output pipeline is provided with a sixth valve for controlling the heated water to flow into the first heat exchanger.

5. The solar energy combined with air energy heating and cooling system as claimed in claim 4, characterized in that: The fourth input pipeline is provided with a seventh valve for controlling the refrigerant that absorbs or releases heat to be input into the second heat exchange coil; the fourth output pipeline is provided with an eighth valve for controlling the refrigerant after heat exchange or cooling to be input into the heating and cooling heat pump unit.

6. The solar energy combined with air energy heating and cooling system as claimed in claim 5, characterized in that: The fifth input pipeline is provided with a ninth valve for controlling the input of hot water into the thermal insulation water tank after heat exchange; the fifth output pipeline is provided with a tenth valve for controlling the input of water into the second heat exchanger after heating.

7. The solar energy combined with air energy heating and cooling system as claimed in claim 6, characterized in that: The sixth input pipeline is provided with a twelfth valve for controlling whether cold water is pumped into the fan coil unit, and the sixth output pipeline is provided with an eleventh valve for controlling whether the water after cooling is pumped into the second heat exchanger.

8. The solar energy combined with air energy heating and cooling system as claimed in claim 7, characterized in that: The third valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve and the tenth valve are each provided with a temperature sensor for real-time monitoring of the temperature of the antifreeze liquid, the refrigerant or the water in the pipeline, and each temperature sensor is connected to the controller.

9. The solar energy combined with air energy heating and cooling system as claimed in claim 8, characterized in that: A third heat exchange coil is arranged in the thermal insulation water tank, and the third heat exchange coil is connected to the water supply source through a seventh input pipe; the third heat exchange coil is connected to the water supply tank through a seventh output pipe.

10. The solar energy combined with air energy heating and cooling system as claimed in claim 9, characterized in that: The seventh input pipeline is provided with a thirteenth valve for controlling the normal temperature water to flow into the third heat exchange coil.

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