Domestic hot water system with solar energy coupled with air source heat pump
By combining the dual heating mode of the solar and air -source heat pumps in the living thermal water system, the problem of large power consumption of power consumption or unstable heating method is solved, and more efficient energy use has been achieved.
Patent Information
- Application Number
- CN202420747635.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-11
AI Technical Summary
In the prior art, if the domestic hot water system only uses an air source heat pump heating system, it consumes a lot of electricity, resulting in a large energy consumption; if only a solar heating system is used, it will be greatly affected by the weather, affecting the heating effect.
The living thermal water system of solar coupling air source heat pump is used to heat multiple heat collecting tanks through solar heat collecting plates. When solar energy heating is used in the daytime, when the water supply or solar utilization rate is low, the air source heat pump is used to supplement heating.
The use of solar energy is maximized, reducing the running time of the air source heat pump, good energy saving effect, and improving energy utilization efficiency.
Smart Images
Figure CN222417670U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of hot water supply, and in particular to a domestic hot water system of a solar-powered coupled air-source heat pump. Background Art
[0002] Domestic hot water system is an indispensable part of modern residential and commercial buildings, which provides comfortable and sanitary hot water supply for residents. Domestic hot water system is widely used in factories, mines, enterprises, hotels, restaurants, hospitals, public bathrooms, apartment houses and some public buildings.
[0003] At present, air source heat pump heating systems are generally used to provide hot water. Air source heat pumps use the energy in the air as the main power and drive the compressor through electric energy to achieve energy conversion. However, air source heat pumps run for a long time, especially in winter when the outdoor temperature is low. It consumes more electricity to extract heat from the air, resulting in higher energy consumption and lower energy efficiency. In addition, some heating systems only use solar heating systems to provide hot water, but solar energy is greatly affected by the weather, which affects the heating effect. Utility Model Content
[0004] The embodiment of the present application provides a domestic hot water system with a solar energy coupled air source heat pump, thereby solving the technical problems in the prior art that if the domestic hot water system only adopts an air source heat pump heating system, the power consumption is large, resulting in high energy consumption, and if only a solar energy heating system is adopted, the heating effect is affected.
[0005] An embodiment of the present application provides a domestic hot water system coupled with a solar energy-coupled air source heat pump, comprising a solar collector panel, a heating tank, an air source heat pump, a water supply pipe and a plurality of collector tanks; the output ends of the solar collector panels are respectively connected to the water inlet ends of the plurality of collector tanks, the first output ends of the plurality of collector tanks, the water supply pipe and the domestic hot water return pipe at the user end are all connected to the input end of the solar collector panel; the second output ends of the plurality of collector tanks are all connected to the first input end of the heating tank, and the first output end of the heating tank is connected to the domestic hot water inlet pipe at the user end; the second output end of the heating tank is connected to the input end of the air source heat pump, and the second input end of the heating tank is connected to the output end of the air source heat pump; the first output ends of the plurality of collector tanks are each provided with a first regulating valve, and the second output ends of the plurality of collector tanks are each provided with a second regulating valve.
[0006] In a possible implementation, the domestic hot water system of the solar-coupled air source heat pump also includes a first circulation pump, a second circulation pump and a third circulation pump; the first circulation pump is arranged between the input end of the air source heat pump and the second output end of the heating tank; the second circulation pump is arranged between the input end of the solar collector panel and the first output ends of the plurality of collector tanks; the third circulation pump is arranged between the input end of the solar collector panel and the domestic hot water return pipe at the user end.
[0007] In a possible implementation, the domestic hot water system of the solar-coupled air source heat pump also includes a controller; the first regulating valve and the second regulating valve are both electric valves; the controller is electrically connected to the first regulating valve, the second regulating valve, the air source heat pump, the first circulation pump, the second circulation pump and the third circulation pump.
[0008] In a possible implementation, both the water supply pipe and the domestic hot water return pipe at the user end are provided with a water softener.
[0009] In a possible implementation, there are four heat collection tanks.
[0010] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects:
[0011] The domestic hot water system of the solar energy coupled air source heat pump provided in the embodiment of the present application includes a solar collector panel, a heating tank, an air source heat pump, a water supply pipe and a plurality of collector tanks. The domestic hot water system of the solar energy coupled air source heat pump in the embodiment of the present application is a closed system, which can well ensure the pressure balance of the water point. The domestic hot water system of the solar energy coupled air source heat pump of the present application adopts a dual heating mode of solar energy and air source heat pump. During the day, the collector tank near the input end of the solar collector panel is first heated, and its corresponding first regulating valve is opened so that its water temperature is greater than 55°C. At this time, the first regulating valve at the first output end of the collector tank near the input end of the solar collector panel is closed, and the other collector tanks are heated in turn; when the water temperature of one of the collector tanks drops to 50°C due to water supply or heat loss, the first regulating valve at the first output end of the collector tank is opened so that its water temperature is greater than 55°C; when the water supply is at a peak, the second regulating valve of one or two collector tanks with higher water temperature can be opened according to the water temperature of each collector tank; when the water temperature of the heating tank is lower than 50°C, the air source heat pump is turned on to heat the collector tank. Therefore, the embodiment of the present application avoids using only the air source heat pump to heat the heating tank, which can maximize the utilization of solar energy and adopt a heating method of multiple collector tanks, thereby reducing the operating time of the air source heat pump, achieving good energy-saving effects and improving energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0013] Figure 1 A schematic diagram of the result of a domestic hot water system of a solar-coupled air-source heat pump provided in an embodiment of the present application;
[0014] Figure 2 A control schematic diagram of a controller provided in an embodiment of the present application.
[0015] Figure numerals: 1-solar collector panel; 2-heating tank; 3-air source heat pump; 4-water supply pipe; 5-collector tank; 51-first regulating valve; 52-second regulating valve; 6-user end; 7-first circulation pump; 8-second circulation pump; 9-third circulation pump; 10-controller. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0017] In the description of the embodiments of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0018] The present application embodiment provides a domestic hot water system coupled with a solar energy-based air source heat pump, such as Figure 1 and Figure 2As shown. The domestic hot water system of the solar-coupled air-source heat pump comprises a solar collector panel 1, a heating tank 2, an air-source heat pump 3, a water supply pipe 4 and a plurality of collector tanks 5. The output ends of the solar collector panel 1 are respectively connected to the water inlet ends of the plurality of collector tanks 5, and the first output ends of the plurality of collector tanks 5, the water supply pipe 4 and the domestic hot water return pipe of the user end 6 are all connected to the input end of the solar collector panel 1. The second output ends of the plurality of collector tanks 5 are all connected to the first input end of the heating tank 2, and the first output end of the heating tank 2 is connected to the domestic hot water inlet pipe of the user end 6. The second output end of the heating tank 2 is connected to the input end of the air-source heat pump 3, and the second input end of the heating tank 2 is connected to the output end of the air-source heat pump 3. The first output ends of the plurality of collector tanks 5 are all provided with a first regulating valve 51, and the second output ends of the plurality of collector tanks 5 are all provided with a second regulating valve 52.
[0019] The air source heat pump 3 provided in the embodiment of the present application can solve the problem of low utilization rate of solar energy when the weather is bad. The power of the air source heat pump 3 unit in the embodiment of the present application is designed according to the absence of solar energy. The area of the solar collector panel 1 in the embodiment of the present application is determined according to the load of hot water consumption. When conditions limit it. When the area of the solar collector panel 1 cannot be configured as required, the total volume of the heat collection tank 5 needs to be determined according to the area of the actually configured solar collector panel 1.
[0020] It should be noted that the domestic hot water system of the solar energy coupled air source heat pump of the embodiment of the present application is a closed system, which can well ensure the pressure balance of the water point. The domestic hot water system of the solar energy coupled air source heat pump of the present application adopts a dual heating mode of solar energy and air source heat pump 3. During the day, the heat collecting tank 5 near the input end of the solar collector 1 is first heated, and the corresponding first regulating valve 51 is opened to make its water temperature greater than 55°C. At this time, the first regulating valve 51 at the first output end of the heat collecting tank 5 near the input end of the solar collector 1 is closed, and the other heat collecting tanks 5 are heated in turn; when the water temperature of one of the heat collecting tanks 5 drops to 50°C due to water supply or heat loss, the first regulating valve 51 at the first output end of the heat collecting tank 5 is opened to make its water temperature greater than 55°C; when at the peak of water supply, the second regulating valve 52 of one or two heat collecting tanks 5 with higher water temperature can be opened according to the water temperature of each heat collecting tank 5; when the water temperature of the heating tank 2 is lower than 50°C, the air source heat pump 3 is opened to heat the heat collecting tank 5. Therefore, the embodiment of the present application can maximize the utilization of solar energy and adopt a heating method of multiple heat collecting tanks 5, thereby reducing the operating time of the air source heat pump 3, achieving good energy-saving effects and improving energy utilization efficiency.
[0021] In the embodiment of the present application, the domestic hot water system of the solar-coupled air source heat pump also includes a first circulation pump 7, a second circulation pump 8 and a third circulation pump 9. The first circulation pump 7 is arranged between the input end of the air source heat pump 3 and the second output end of the heating tank 2. The second circulation pump 8 is arranged between the input end of the solar collector panel 1 and the first output ends of the plurality of collector tanks 5. The third circulation pump 9 is arranged between the input end of the solar collector panel 1 and the domestic hot water return pipe of the user end 6. The first circulation pump 7, the second circulation pump 8 and the third circulation pump 9 of the embodiment of the present application can overcome the resistance in the pipeline system, so that the fluid can reach a higher flow speed or height.
[0022] In the embodiment of the present application, the domestic hot water system of the solar-coupled air source heat pump further includes a controller 10. The first regulating valve 51 and the second regulating valve 52 are both electric valves. The controller 10 is electrically connected to the first regulating valve 51, the second regulating valve 52, the air source heat pump 3, the first circulating pump 7, the second circulating pump 8 and the third circulating pump 9.
[0023] When the water temperature of the heat collecting tank 5 drops to 50°C, the controller 10 sends a command to the first regulating valve 51 corresponding to the heat collecting tank 5, so that the solar collector panel 1 heats the heat collecting tank 5 with a lower water temperature; when the water supply is at a peak, the controller 10 sends a command to the second regulating valve 52 of the heat collecting tank 5 with a higher water temperature, so that hot water can be supplied to the heating tank 2; when the water temperature of the heat collecting tank 5 is lower than 50°C, the controller 10 sends a command to the air source heat pump 3, so that it can automatically heat the heating tank 2.
[0024] In the embodiment of the present application, a water softener is provided on both the water supply pipe 4 and the domestic hot water return pipe of the user end 6. The water softener in the embodiment of the present application can effectively reduce the hardness of water, separate calcium and magnesium ions in water, and play a role in avoiding pipe blockage.
[0025] In the embodiment of the present application, there are four heat collecting tanks 5. The present application adopts a method of heating by using multiple heat collecting tanks 5, avoiding using a single heat collecting tank 5 to supply water to the heating tank 2, thereby avoiding the slow temperature rise of the heating tank 2. Of course, the heat collecting tanks 5 in the embodiment of the present application are not limited to four, and five or six can be set.
[0026] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.
[0027] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.
Claims
1. A domestic hot water system of solar energy coupled air source heat pump, characterized in that: It comprises a solar heat collecting panel (1), a heating tank (2), an air source heat pump (3), a water supply pipe (4) and a plurality of heat collecting tanks (5); The output ends of the solar thermal collector panels (1) are respectively connected to the water inlet ends of the plurality of thermal collector tanks (5); the first output ends of the plurality of thermal collector tanks (5), the water supply pipe (4) and the domestic hot water return pipe of the user end (6) are all connected to the input end of the solar thermal collector panels (1); The second output ends of the plurality of heat collecting tanks (5) are all connected to the first input end of the heating tank (2), and the first output end of the heating tank (2) is connected to the domestic hot water inlet pipe of the user end (6); The second output end of the heating tank (2) is connected to the input end of the air source heat pump (3), and the second input end of the heating tank (2) is connected to the output end of the air source heat pump (3); The first output ends of the plurality of heat collecting tanks (5) are each provided with a first regulating valve (51), and the second output ends of the plurality of heat collecting tanks (5) are each provided with a second regulating valve (52).
2. The domestic hot water system of the solar-coupled air source heat pump according to claim 1, characterized in that: It also includes a first circulation pump (7), a second circulation pump (8) and a third circulation pump (9); The first circulation pump (7) is arranged between the input end of the air source heat pump (3) and the second output end of the heating tank (2); The second circulation pump (8) is arranged between the input end of the solar thermal collector panel (1) and the first output ends of the plurality of thermal collector tanks (5); The third circulation pump (9) is arranged between the input end of the solar heat collecting panel (1) and the domestic hot water return pipe of the user end (6).
3. The domestic hot water system of the solar-coupled air source heat pump according to claim 2, characterized in that: Also includes a controller (10); The first regulating valve (51) and the second regulating valve (52) are both electric valves; The controller (10) is electrically connected to the first regulating valve (51), the second regulating valve (52), the air source heat pump (3), the first circulation pump (7), the second circulation pump (8) and the third circulation pump (9).
4. The domestic hot water system of the solar-coupled air-source heat pump according to claim 1, characterized in that: The water supply pipe (4) and the domestic hot water return pipe at the user end (6) are both provided with a water softener.
5. The domestic hot water system of the solar-coupled air-source heat pump according to claim 1, characterized in that: There are four heat collecting tanks (5).