Solar energy and air energy coupled hot water system, control method and electronic equipment

Abstract

The invention provides a solar energy and air energy coupled hot water system, a control method and electronic equipment. The solar energy and air energy coupled hot water system comprises a solar heat collector and an air energy heat pump unit. The at least two water tanks are sequentially connected in series, and the first water tank in the at least two water tanks is connected with the solar heat collector and the air energy heat pump unit; the water supply end of the second water tank in the at least two water tanks is used for being connected with a user side; the control device is used for obtaining current time information, first water temperature data t1 of the first water tank and second water temperature data t2 of the solar heat collector. According to the solar energy and air energy coupled hot water system, the technical problem that in the prior art, a solar energy and air energy combined heat supply system cannot fully utilize hot water with the temperature close to the required temperature in the solar heat collector, and therefore the operation efficiency of the system and the use experience of a user are reduced can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a solar energy and air energy coupled hot water system, a control method and electronic equipment. Background Art

[0002] Under the background of the national "dual carbon" goal, the importance of building energy conservation has become increasingly prominent. As an indispensable part of people's lives, hot water has a large demand and a long peak period of water use, resulting in a huge total energy consumption of the hot water system. Therefore, energy-saving control of the hot water system is not only of great strategic significance for achieving the national energy conservation and emission reduction goals, but also can effectively improve energy utilization efficiency and promote sustainable development.

[0003] At present, in the solar energy and air energy combined heating systems on the market, the solar heat source usually adopts a temperature difference control cycle, which fails to fully utilize the hot water in the solar collector that is close to the required temperature, resulting in a certain degree of energy waste, thereby reducing the operating efficiency of the system. In addition, this control method further affects the joint heating effect of the air energy heat pump and the solar collector, and cannot achieve optimization and coordination, thus affecting the user experience.

[0004] Therefore, the prior art needs to be further developed. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide a solar energy and air energy coupled hot water system, a control method and an electronic device to solve the technical problem that the solar energy and air energy combined heating system in the prior art fails to fully utilize the hot water in the solar collector that is close to the required temperature, thereby reducing the system's operating efficiency and the user's experience.

[0006] To achieve the above technical objectives, according to one aspect of the present invention: a solar energy and air energy coupled hot water system is provided, the hot water system comprising: a solar energy collector and an air energy heat pump unit; at least two water tanks, at least two water tanks are connected in series in sequence, and the first water tank of the at least two water tanks is respectively connected to the solar energy collector and the air energy heat pump unit; the water supply end of the second water tank of the at least two water tanks is used to connect to the user side; a control device is used to obtain current time information, first water temperature data t1 of the first water tank and second water temperature data t2 of the solar energy collector, and adaptively adjust the water supply mode of the hot water system according to the acquired current time information and the acquired first water temperature data t1 and / or the acquired second water temperature data t2.

[0007] Furthermore, the first water tank has a first water inlet and a second water outlet; the first water inlet is connected to the water outlet of the solar collector; the second water outlet is connected to the second water tank; the water inlet of the solar collector is connected to the output of the water supply network; the hot water system also includes: a first control valve, which is arranged between the water inlet of the solar collector and the output of the water supply network, and the water inlet of the solar collector is connected to the output of the water supply network through the first control valve; the first control valve is communicatively connected to the control device, and the control device is used to control the on and off of the first control valve; wherein, when the current time is within the preset solar radiation time interval and the control device adjusts the water supply mode of the hot water system to the first water supply mode, the control device controls the first control valve to open, and the solar collector heats the water transported by the water supply network and supplies it to the user side through at least two water tanks.

[0008] Furthermore, the first water tank has a first water inlet, a second water inlet, a second water outlet and a third water outlet, and the first water inlet and the second water outlet are both located at the top of the first water tank, and the second water inlet and the third water outlet are both located at the bottom of the first water tank; the first water inlet is connected to the water outlet of the solar collector; the second water inlet is used to be connected to the output port of the water supply network; the second water outlet is connected to the second water tank; the third water outlet is connected to the water inlet of the solar collector; the hot water system also includes: a first circulating pump, which is arranged at the third water outlet and the water inlet of the solar collector inlets, and the first circulation pump is respectively connected to the third water outlet and the water inlet of the solar thermal collector; the first circulation pump is communicatively connected to the control device, and the control device is used to control the start and stop of the first circulation pump; wherein, when the current time is within the preset solar irradiation time interval, and the control device adjusts the water supply mode of the hot water system to the second water supply mode, the control device controls the first circulation pump to start; the water in the first water tank enters the solar thermal collector through the first circulation pump and the water inlet of the solar thermal collector for heating, so that the first water tank is thermally coupled with the solar thermal collector.

[0009] Furthermore, the hot water system also includes: a second control valve, which is arranged between the third water outlet and the first circulation pump, and the first circulation pump is connected to the third water outlet through the second control valve; the second control valve is communicatively connected to the control device, and the control device is used to control the on and off of the second control valve; wherein, when the water supply mode of the hot water system is the second water supply mode, the control device controls the second control valve to open.

[0010] Furthermore, the hot water system also includes: a third control valve, which is respectively connected to the water outlet and the first water inlet of the solar collector; a control device is communicatively connected to the third control valve, and the control device is used to control the on and off of the third control valve.

[0011] Furthermore, the hot water system also includes: a first temperature detection component, which is arranged at the water outlet of the air-energy heat pump unit; the first temperature detection component is used to detect the third water temperature data t3 at the water outlet of the air-energy heat pump unit; the control device is communicatively connected with the first temperature detection component, and the control device is used to obtain the third water temperature data t3 detected by the first temperature detection component; wherein, when the current time is within a preset solar energy irradiation time interval or a preset non-solar energy irradiation time interval, and the control device controls the air-energy heat pump unit to start up according to the obtained first water temperature data t1, the control device adjusts the water supply mode of the hot water system to the third water supply mode or the fourth water supply mode according to the obtained third water temperature data t3.

[0012] Furthermore, the first water tank has a second water outlet, a third water outlet, a second water inlet and a fourth water inlet, the second water outlet is located at the top of the first water tank, and the second water outlet is connected to the second water tank; the third water outlet, the second water inlet and the fourth water inlet are all located at the bottom of the first water tank, the third water outlet is connected to the water inlet of the air-energy heat pump unit; the second water inlet is used to be connected to the output port of the water supply network; the fourth water inlet is connected to the water outlet of the air-energy heat pump unit; the hot water system also includes: a second circulating pump, which is arranged between the third water outlet and the water inlet of the air-energy heat pump unit, and the third water outlet is connected to the water inlet of the air-energy heat pump unit through the third water outlet The second circulation pump is connected to the water inlet of the air energy heat pump unit; the second circulation pump is communicatively connected to the control device, and the control device is used to control the start and stop of the second circulation pump; wherein, when the control device adjusts the water supply mode of the hot water system to the third water supply mode, the control device controls the second circulation pump to start, and the water in the first water tank enters the air energy heat pump unit through the second circulation pump and the water inlet of the air energy heat pump unit for heating, and the water heated by the air energy heat pump unit enters the first water tank through the water outlet and the fourth water inlet of the air energy heat pump unit, so that the first water tank and the air energy heat pump unit are thermally coupled.

[0013] Furthermore, the hot water system also includes: a fourth control valve, which is arranged between the fourth water inlet and the water outlet of the air-energy heat pump unit, and the water outlet of the air-energy heat pump unit is connected to the fourth water inlet through the fourth control valve; a control device is communicatively connected to the fourth control valve, and the control device is used to control the on and off of the fourth control valve; wherein, when the water supply mode of the hot water system is the third water supply mode, the control device controls the fourth control valve to open.

[0014] Furthermore, the water outlet of the air-energy heat pump unit is connected to the third water inlet of the second water tank; the first water tank has a second water outlet, a third water outlet and a second water inlet, the second water outlet is located at the top of the first water tank, and the second water outlet is connected to the second water tank; the third water outlet is located at the bottom of the first water tank, and the third water outlet is connected to the water inlet of the air-energy heat pump unit; the second water inlet is used to be connected to the output port of the water supply network; the hot water system also includes: a fifth control valve, which is arranged between the water outlet of the air-energy heat pump unit and the third water inlet of the second water tank, and the water outlet of the air-energy heat pump unit is connected to the third water inlet of the second water tank through the fifth control valve; the fifth control valve is communicatively connected to the control device, and the control device is used to control the on and off of the fourth control valve; wherein, when the control device adjusts the water supply mode of the hot water system to the fourth water supply mode, the control device controls the fifth control valve to open, and the water heated by the air-energy heat pump unit is supplied to the user side through the water outlet of the air-energy heat pump unit and the second water tank.

[0015] Furthermore, the hot water system also includes: a sixth control valve, which is arranged between the second water inlet end and the output port of the water supply network, and the second water inlet end is connected to the output port of the water supply network through the sixth control valve; the control device is communicatively connected to the sixth control valve, and the control device is used to control the on and off of the sixth control valve.

[0016] Furthermore, the hot water system also includes: a second temperature detection component, which is arranged at the output port of the water supply network, and the second temperature detection component is used to detect the fourth water temperature data t4 at the output port of the water supply network; the second temperature detection component is communicatively connected with the control device, and the control device is used to obtain the fourth water temperature data t4 detected by the second temperature detection component; wherein, when the current time is within the preset non-solar radiation time interval, the control device compares the acquired second water temperature data t2 with the first water temperature data t1 and the fourth water temperature data t4 respectively; and judges whether to adjust the water supply mode of the hot water system to the fifth water supply mode according to the comparison result; if the control device adjusts the water supply mode of the hot water system to the fifth water supply mode, the solar collector and the air energy heat pump unit are thermally coupled.

[0017] Further, the hot water system further includes: a timing device for timing according to a preset solar irradiation time interval and a preset non-solar irradiation time interval; a control device communicatively connected to the timing device, the control device being configured to obtain the current time information of the timing device; and / or, a third temperature detection member disposed in the first water tank; the third temperature detection member is configured to detect the first water temperature data t1 of the first water tank; the third temperature detection member is connected to the control device to transmit the detected first water temperature data t1 to the control device; and / or, a fourth temperature detection member disposed in the solar collector; the fourth temperature detection member is configured to detect the second water temperature data t2 of the solar collector; the fourth temperature detection member is connected to the control device to transmit the detected second water temperature data t2 to the control device.

[0018] According to another aspect of the present invention: A control method is provided, which is applied to the above hot water system. The control method includes: obtaining the current time information, the first water temperature data t1 of the first water tank, and the second water temperature data t2 of the solar collector; adaptively adjusting the water supply mode of the hot water system according to the obtained current time information and the obtained first water temperature data t1 and / or the obtained second water temperature data t2.

[0019] Further, the method for adaptively adjusting the water supply mode of the hot water system according to the obtained current time information and the obtained first water temperature data t1 and / or the obtained second water temperature data t2 includes: if the current time is within the preset solar irradiation time interval, determining whether the difference between the second water temperature data t2 and the first water temperature data t1 is greater than or equal to a first preset value T1; if t2 - t1 ≥ T1, adjusting the water supply mode of the hot water system to a second water supply mode to enable heat energy coupling between the first water tank and the solar collector; if t2 - t1 < T1, determining whether the second water temperature data t2 is greater than or equal to the first water temperature data t1, and adjusting the water supply mode of the hot water system according to the determination result.

[0020] Further, the control method further includes: during the process of the hot water system supplying water to the user side in the second water supply mode, determining whether the difference between the second water temperature data t2 and the first water temperature data t1 is less than or equal to a second preset value T2; if t2 - t1 ≤ T2, the hot water system will stop the current second water supply mode; wherein, T1 > T2.

[0021] Further, a method for judging whether the second water temperature data t2 is greater than or equal to the first water temperature data t1 when t2 - t1 < T1, and adjusting the water supply mode of the hot water system according to the judgment result, includes: if t2 ≥ t1, adjusting the water supply mode of the hot water system to the first water supply mode, so that the solar collector heats the water transported by the water supply network and supplies it to the user side through at least two water tanks; if t2 < t1, judging whether the first water temperature data t1 is less than or equal to the difference between the preset water temperature t0 in the second water tank and the third preset value T3; and controlling whether the air source heat pump unit is turned on according to the judgment result.

[0022] Further, a method for controlling whether the air source heat pump unit is turned on according to the judgment result includes: if t1 ≤ t0 - T3, controlling the air source heat pump unit to turn on; after the air source heat pump unit is turned on, obtaining the third water temperature data t3 at the water outlet of the air source heat pump unit; judging whether the third water temperature data t3 is less than or equal to the difference between the preset water temperature t0 and the third preset value T3; if t3 ≤ t0 - T3, adjusting the water supply mode of the hot water system to the third water supply mode, so that the first water tank and the air source heat pump unit perform heat energy coupling; if t3 > t0 - T3, adjusting the water supply mode of the hot water system to the fourth water supply mode, so that the air source heat pump unit heats the water and directly supplies it to the user side.

[0023] Further, the control method further includes: after the air source heat pump unit is turned on, judging whether the first water temperature data t1 is greater than or equal to the preset water temperature t0 in the second water tank, and whether the fifth water temperature data t5 at the water inlet of the air source heat pump unit is greater than or equal to the preset water temperature t0; if t1 ≥ t0 and t5 ≥ t0, controlling the air source heat pump unit to turn off.

[0024] Further, a method for adaptively adjusting the water supply mode of the hot water system according to the obtained current time information, the obtained first water temperature data t1, and / or the obtained second water temperature data t2 further includes: if the current time is within the preset non-solar irradiation time interval, obtaining the fourth water temperature data t4 at the outlet of the water supply network; judging whether the second water temperature data t2 is greater than the fourth water temperature data t4 and whether the second water temperature data t2 is less than the first water temperature data t1; if t2 > t4 and t2 < t1, adjusting the water supply mode of the hot water system to the fifth water supply mode, so that the solar collector and the air source heat pump unit perform heat energy coupling; if t2 ≤ t4, adjusting the water supply mode of the hot water system to the third water supply mode or the fourth water supply mode; wherein, when the water supply mode of the hot water system is the third water supply mode, the first water tank and the air source heat pump unit perform heat energy coupling; when the water supply mode of the hot water system is the fourth water supply mode, the air source heat pump unit heats the water and directly supplies it to the user side.

[0025] According to another aspect of the present invention: an electronic device includes: a processor, and a memory connected to the processor; the memory is used to store computer programs; the processor is used to call and execute the computer program in the memory to perform the above-mentioned control method.

[0026] Beneficial effects: By applying the technical solution of the present invention, the solar energy and air energy coupled hot water system provided by the present invention realizes efficient and intelligent hot water supply by setting a solar collector, an air energy heat pump unit, at least two water tanks and a control device. Specifically, at least two water tanks are connected in series in sequence, wherein the first water tank of the at least two water tanks is connected to the solar energy collector and the air energy heat pump unit respectively, and the water supply end of the second water tank of the at least two water tanks is used to connect to the user side; thereby hot water is delivered to the user side through the water supply end of the second water tank. In addition, the control device can obtain the current time information, the first water temperature data t1 of the first water tank and the second water temperature data t2 of the solar collector, and the control device can adaptively adjust the water supply mode of the hot water system according to the current time information obtained and the first water temperature data t1 and / or the second water temperature data t2 obtained, so as to switch the heating mode under different conditions. It can be seen that by setting at least two water tanks, and at least two water tanks are set in series in sequence, the stratified storage and graded supply of water of different temperatures can be realized, and the energy efficiency of the system can be further improved. And by connecting the first water tank with the solar collector and the air energy heat pump unit, the two renewable energy sources of solar energy and air energy can be fully utilized. Especially in the sunny period, the hot water heated by the solar collector is used first to reduce the dependence on the air energy heat pump, thereby improving the energy utilization efficiency of the system. And, the control device can intelligently judge and adaptively adjust the water supply mode of the hot water system according to the current time information obtained, the first water temperature data t1 obtained by the first water tank and the second water temperature data t2 obtained by the solar collector, thereby realizing the switching of the heating mode under different conditions, so that the hot water in the solar collector close to the required temperature can be fully utilized to improve the overall energy utilization efficiency of the system. At the same time, by adaptively adjusting the water supply mode, the hot water supply can be optimized according to the actual heat demand and environmental conditions, and the user experience can be improved. And the air energy heat pump unit is combined with the solar collector and intelligently linked to control, which can give full play to the energy-saving advantages of solar energy and the comfort of the hot water system. In addition, by adjusting the water supply mode of the hot water system according to the current time obtained, the solar energy clean heat source can be fully utilized. The solar energy and air energy coupled hot water system of the present invention can effectively solve the technical problem that the solar energy and air energy combined heating system in the prior art fails to fully utilize the hot water in the solar collector close to the required temperature, thereby reducing the operating efficiency of the system and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of an embodiment of a solar energy and air energy coupled hot water system of the present invention is shown; Figure 2 A flow chart showing an embodiment of the control method of the present invention is shown.

[0028] The above drawings include the following reference numerals: 1. Solar collector; 2. Air energy heat pump unit; 3. First water tank; 31. First water inlet; 32. Second water outlet; 33. Second water inlet; 34. Third water outlet; 35. Fourth water inlet; 36. Connecting pipe; 4. Second water tank; 41. Water supply; 42. Third water inlet; 5. First control valve; 6. First circulation pump; 7. Second control valve; 8. Third control valve; 9. First temperature detection element; 10. Second circulation pump; 11. Fourth control valve; 12. Fifth control valve; 13. Sixth control valve; 14. Second temperature detection element; 15. Sixth temperature detection element; 16. Third temperature detection element; 17. Fourth temperature detection element; 100. Water supply network. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 the field without creative work should fall within the scope of protection of the present application.

[0030] See also Figure 1 As shown, according to an embodiment of the present invention, the present invention provides a solar energy and air energy coupled hot water system, the hot water system comprising: a solar collector 1, an air energy heat pump unit 2, at least two water tanks and a control device, the at least two water tanks are connected in series in sequence, the first water tank 3 of the at least two water tanks is respectively connected to the solar collector 1 and the air energy heat pump unit 2; the water supply end 41 of the second water tank 4 of the at least two water tanks is used to connect to the user side; the control device is used to obtain current time information, first water temperature data t1 of the first water tank 3 and second water temperature data t2 of the solar collector 1, and adaptively adjust the water supply mode of the hot water system according to the acquired current time information and the acquired first water temperature data t1 and / or the acquired second water temperature data t2.

[0031] It can be seen that the solar energy and air energy coupled hot water system provided by the present invention realizes efficient and intelligent hot water supply by setting a solar energy collector 1, an air energy heat pump unit 2, at least two water tanks and a control device. Specifically, at least two water tanks are connected in series in sequence, wherein the first water tank 3 of the at least two water tanks is respectively connected to the solar energy collector 1 and the air energy heat pump unit 2, and the water supply end 41 of the second water tank 4 of the at least two water tanks is used to connect to the user side; thereby hot water is delivered to the user side through the water supply end 41 of the second water tank 4. In addition, the control device can obtain the current time information, the first water temperature data t1 of the first water tank 3 and the second water temperature data t2 of the solar energy collector 1, and the control device can adaptively adjust the water supply mode of the hot water system according to the obtained current time information and the obtained first water temperature data t1 and / or the obtained second water temperature data t2, so as to switch the heating mode under different conditions.

[0032] It can be seen that by setting at least two water tanks, and at least two water tanks are arranged in series in sequence, the stratified storage and graded supply of water at different temperatures can be realized, and the energy efficiency of the system can be further improved. And by connecting the first water tank with the solar collector and the air energy heat pump unit, the two renewable energy sources of solar energy and air energy can be fully utilized. Especially in the sunny period, the hot water heated by the solar collector is used first to reduce the dependence on the air energy heat pump, thereby improving the energy efficiency of the system. And, the control device can intelligently judge and adaptively adjust the water supply mode of the hot water system according to the current time information obtained, the first water temperature data t1 obtained by the first water tank 3 and the second water temperature data t2 obtained by the solar collector 1, and then realize the switching of the heating mode under different conditions, so that the hot water in the solar collector close to the required temperature can be fully utilized to improve the overall energy efficiency of the system. At the same time, by adaptively adjusting the water supply mode, the hot water supply can be optimized according to the actual heat demand and environmental conditions, and the user experience can be improved. And the air energy heat pump unit 2 is combined with the solar collector 1 and intelligently linked and controlled, which can give full play to the energy-saving advantages of solar energy and the comfort of the hot water system. In addition, by adjusting the water supply mode of the hot water system according to the current time obtained, the clean heat source of solar energy can be fully utilized. The solar energy and air energy coupled hot water system of the present invention can effectively solve the technical problem that the solar energy and air energy combined heating system in the prior art fails to fully utilize the hot water in the solar collector that is close to the required temperature, thereby reducing the operating efficiency of the system and the user's experience.

[0033] Optionally, the water storage capacity of the solar thermal collector 1 is selected according to 1 / 3 of the water tank configuration, so as to improve the economic benefits of the solar energy system.

[0034] Alternatively, if Figure 1 As shown, a plurality of intermediate water tanks may be provided between the first water tank 3 and the second water tank 4, and the first water tank 3 and the plurality of intermediate water tanks and the second water tank 4 are sequentially arranged in series. Specifically, the first water tank 3 is sequentially connected to the plurality of intermediate water tanks, each intermediate water tank is then connected to the next intermediate water tank, and finally connected to the second water tank 4. This series structure forms a multi-stage heating and storage system. With such a structural arrangement, a temperature gradient can be formed in the system by connecting a plurality of water tanks in series. The water temperature in each water tank gradually increases, which helps to control the water temperature more finely and ensure that the hot water temperature finally supplied to the user is stable and suitable.

[0035] Optionally, the first water tank 3, the second water tank 4 and the plurality of intermediate water tanks are all pressure water tanks. With such a structural setting, each water tank is designed as a pressure water tank, so that a certain pressure can be maintained inside each water tank, which helps to maintain the pressure balance in the system. This can prevent the water in the water tank from generating bubbles or water hammer due to pressure fluctuations, thereby improving the stability and reliability of the system. And it can ensure that the water flow is evenly distributed throughout the system, avoid excessive or low local pressure, and ensure that each water tank can work effectively. And the sealing performance of the pressure water tank is better, which can effectively prevent the water tank from leaking, protect the integrity of the system and the safety of users. At the same time, the water in the pressure water tank flows under high pressure, which can reduce heat loss and improve the transmission efficiency of heat energy. This helps to maintain water temperature, reduce additional heating requirements, and thus improve the overall energy efficiency of the system. In addition, the water in the pressure water tank is mixed more evenly under high pressure, which can ensure a more uniform water temperature, avoid local overheating or overcooling problems, and provide higher quality hot water. And the pressure water tank can transport hot water to a distant place, is not restricted by terrain and height, and is suitable for large buildings or distributed hot water systems.

[0036] Optionally, there are two second water tanks 4, and the water supply ends 41 of the two second water tanks 4 are both connected to the user side.

[0037] Specifically, Figure 1As shown, the first water tank 3 has a first water inlet end 31 and a second water outlet end 32; the first water inlet end 31 is connected to the water outlet of the solar collector 1; the second water outlet end 32 is connected to the second water tank 4; the water inlet of the solar collector 1 is connected to the output port of the water supply network 100; the hot water system also includes: a first control valve 5, which is arranged between the water inlet of the solar collector 1 and the output port of the water supply network 100, and the water inlet of the solar collector 1 is connected to the output port of the water supply network 100 through the first control valve 5; the first control valve 5 is communicatively connected to the control device, and the control device is used to control the on and off of the first control valve 5; wherein, when the current time is within the preset solar radiation time interval, and the control device adjusts the water supply mode of the hot water system to the first water supply mode, the control device controls the first control valve 5 to open, and the solar collector 1 heats the water transported by the water supply network 100 and supplies it to the user side through at least two water tanks. With such a structural setting, through the intelligent control of the first control valve 5, the system preferentially uses the solar collector 1 to heat cold water during periods of sufficient solar energy, reduces dependence on air-to-air heat pumps, maximizes the use of solar energy resources, and thus significantly reduces the operating costs and energy consumption of the system.

[0038] Optionally, the control device determines whether the current time is within a preset solar radiation time interval based on the acquired current time. If so, it determines whether the second water temperature data t2 is greater than or equal to the first water temperature data t1; if , the control device adjusts the water supply mode of the hot water system to the first water supply mode (i.e., the solar direct supply to users mode). At the same time, the first control valve 5 is controlled to be opened so that the water inlet of the solar collector 1 is connected to the output port of the water supply network 100. The water output from the output port of the water supply network 100 enters the solar collector 1 through the first control valve 5 and the water inlet of the solar collector 1 in turn for heating. Then, the heated water enters the first water tank 3 through the water outlet of the solar collector 1 and the first water inlet end 31. The water in the first water tank 3 is then transported to the second water tank 4 through the second water outlet end 32. Finally, the heated water is transported from the water supply end 41 of the second water tank 4 to the user side.

[0039] The preset solar radiation time interval refers to the preset time period for solar heat collection every day according to the local sunshine law. During this preset time, solar heat collection will continue.

[0040] Specifically, Figure 1As shown, the first water inlet 31 and the second water outlet 32 ​​are both located at the top of the first water tank 3; the first water tank 3 also has a second water inlet 33 and a third water outlet 34, and the second water inlet 33 and the third water outlet 34 are both located at the bottom of the first water tank 3; the second water inlet 33 is used to connect with the output port of the water supply network 100; the third water outlet 34 is connected to the water inlet of the solar collector 1; the hot water system also includes: a first circulation pump 6, which is arranged between the third water outlet 34 and the water inlet of the solar collector 1, and the first circulation pump 6 is respectively connected to the third water outlet The water end 34 is connected to the water inlet of the solar collector 1; the first circulation pump 6 is communicatively connected to the control device, and the control device is used to control the start and stop of the first circulation pump 6; wherein, when the current time is within the preset solar radiation time interval, and the control device adjusts the water supply mode of the hot water system to the second water supply mode, the control device controls the first circulation pump 6 to start; the water in the first water tank 3 enters the solar collector 1 through the first circulation pump 6 and the water inlet of the solar collector 1 for heating, so that the first water tank 3 is thermally coupled with the solar collector 1.

[0041] With such a structural setting, the first water inlet 31 is set at the top of the first water tank 3, and the second water inlet 33 is set at the bottom of the first water tank 3, so that the heated water can enter from the top of the first water tank 3, and the cold water can enter from the bottom of the first water tank 3, so that natural convection can be formed, so that the water temperature distribution in the first water tank 3 is more uniform, and the temperature gradient in the water tank is more obvious. This temperature gradient helps to better utilize the heat in the water tank, ensure that the hot water maintains a high temperature during the transfer process, and improve the energy efficiency of the system. At the same time, the second water outlet 32 ​​is set at the top of the first water tank 3, and the water with the highest water temperature in the first water tank 3 can be transported to the next water tank, so that the temperature of the hot water supplied to the user is always at a high level, providing a higher quality hot water supply. The third water outlet 34 is set at the bottom of the first water tank 3, and the water with a lower water temperature in the first water tank 3 can be transported to the heating device, which can ensure that the water temperature distribution in the first water tank 3 is more uniform and form a significant temperature gradient. The water temperature at the top is higher and the water temperature at the bottom is lower. This temperature gradient helps to better utilize the heat in the water tank. It can be seen that the reasonable water inlet design prevents cold water from directly entering the hot water area, prevents the water temperature short circuit phenomenon, and ensures the continuous supply of hot water. In addition, by setting the first circulation pump 6, the water with a lower water temperature in the bottom of the first water tank 3 can be sent back to the solar collector for reheating to form a cycle, ensuring that the water temperature in the water tank is maintained at a high level, improving the utilization rate of solar energy, and ensuring the temperature of the hot water is stable, improving the user experience.

[0042] The density of the heated hot water is relatively small and will naturally rise. The first water inlet 31 is set at the top of the first water tank 3 so that the heated hot water can directly enter the upper part of the first water tank 3, avoiding the direct mixing of hot water and cold water and reducing heat loss. The density of unheated cold water is relatively large and will naturally sink. The second water inlet 33 is set at the bottom of the first water tank 3 so that the cold water can directly enter the lower part of the first water tank 3 and mix with the cold water at the bottom to form a natural convection.

[0043] The above “coupling the first water tank 3 with the solar collector 1 for thermal energy” can be understood as combining the first water tank 3 with the solar collector 1 to heat the water in the first water tank 3 in a circulation manner, so that the solar collector 1 can continuously transfer heat to the water in the first water tank 3, ensuring that the water temperature in the water tank is always maintained at a high level. It also ensures that the water temperature in the first water tank 3 is more evenly distributed, avoiding local overheating or overcooling, and improving heating efficiency. It also enables the hot water system to make fuller use of solar energy and reduce energy consumption.

[0044] Furthermore, the third water outlet 34 is located in the first water tank 3 .

[0045] Furthermore, a connecting pipe 36 is provided in the first water tank 3, one end of the connecting pipe 36 is connected to the water inlet of the solar collector 1, and the other end of the connecting pipe 36 is arranged toward the bottom of the first water tank 3, and the other end of the connecting pipe 36 is located at the bottom of the first water tank 3, and the other end of the connecting pipe 36 forms a third water outlet 34.

[0046] Furthermore, the hot water system also includes: a second control valve 7, which is arranged between the third water outlet 34 and the first circulation pump 6, and the first circulation pump 6 is connected to the third water outlet 34 through the second control valve 7; the second control valve 7 is connected to the control device in communication, and the control device is used to control the on-off of the second control valve 7; wherein, when the water supply mode of the hot water system is the second water supply mode, the control device controls the second control valve 7 to open. With such a structural setting, the on-off of the waterway can be flexibly controlled by setting the second control valve 7. When the system needs to switch from the first water supply mode to the second water supply mode, the control device can respond quickly and open the second control valve 7 to ensure that the waterway is unobstructed. The setting of the second control valve 7 can avoid waterway errors caused by misoperation and ensure the normal operation of the system in different modes.

[0047] Furthermore, one end of the second control valve 7 away from the first circulation pump 6 is connected to one end of the connection pipe 36 away from the bottom of the first water tank 3 .

[0048] Optionally, the control device determines whether the current time is within a preset solar radiation time interval based on the acquired current time. If so, it determines whether the difference between the second water temperature data t2 and the first water temperature data t1 is greater than or equal to the first preset value T1; if , the control device adjusts the water supply mode of the hot water system to the second water supply mode (i.e., the solar heat collection circulation mode). At the same time, the first circulation pump 6 is controlled to be turned on, the second control valve 7 is opened and the first control valve 5 is closed, so that the water inlet of the solar collector 1 is connected to the third water outlet 34, and the water inlet of the solar collector 1 is disconnected from the output port of the water supply network 100. The water with a lower water temperature at the bottom of the first water tank 3 is pumped out from the third water outlet 34 through the first circulation pump 6, and the pumped water passes through the second control valve 7, the first circulation pump 6 and the water inlet of the solar collector 1 in turn and enters the solar collector 1 for heating; the heated water enters the first water tank 3 through the water outlet of the solar collector 1 and the first water inlet 31, and then the water in the first water tank 3 is transported to the second water tank 4 through the second water outlet 32. Finally, the water with the highest temperature in the first water tank 3 is transported to the user side from the water supply end 41 of the second water tank 4.

[0049] Specifically, Figure 1 As shown, the hot water system further includes: a third control valve 8, which is respectively connected to the water outlet and the first water inlet 31 of the solar collector 1; a control device is in communication connection with the third control valve 8, and the control device is used to control the on-off of the third control valve 8. With such a structural setting, by setting the third control valve 8, water path errors caused by misoperation can be effectively avoided, and the normal operation of the hot water system in different modes can be ensured.

[0050] When the water supply mode of the hot water system is the first water supply mode (ie, the solar energy direct supply mode to users) or the second water supply mode (ie, the solar energy heat collection cycle mode), the control device controls the third control valve 8 to open.

[0051] Specifically, Figure 1As shown, the hot water system also includes: a first temperature detection member 9, which is arranged at the water outlet of the air energy heat pump unit 2; the first temperature detection member 9 is used to detect the third water temperature data t3 at the water outlet of the air energy heat pump unit 2; the control device is connected to the first temperature detection member 9 for communication, and the control device is used to obtain the third water temperature data t3 detected by the first temperature detection member 9; wherein, when the current time is within the preset solar irradiation time interval or the preset non-solar irradiation time interval, and the control device controls the air energy heat pump unit 2 to start according to the first water temperature data t1 obtained, the control device adjusts the water supply mode of the hot water system to the third water supply mode or the fourth water supply mode according to the third water temperature data t3 obtained. With such a structural setting, the outlet water temperature of the air energy heat pump unit 2 can be detected in real time by setting the first temperature detection member 9, ensuring that the control device can obtain accurate temperature information. The control device dynamically adjusts the water supply mode of the hot water system according to the obtained third water temperature data t3 to ensure the optimal operation of the system under different conditions. And the control device can more accurately control the operation of the air energy heat pump unit 2 by controlling the start or shutdown of the air energy heat pump unit 2 according to the first water temperature data t1 obtained, ensuring the effective use of heat energy and improving the overall energy efficiency of the system. In addition, by real-time monitoring of the third water temperature data t3 and dynamically adjusting the water supply mode of the hot water system according to the third water temperature data t3, the system can quickly respond to changes in user needs, provide high-temperature hot water in a timely manner, and improve the user experience.

[0052] Specifically, Figure 1As shown, the first water tank 3 has a second water outlet 32, a third water outlet 34, a second water inlet 33 and a fourth water inlet 35, the second water outlet 32 ​​is located at the top of the first water tank 3, and the second water outlet 32 ​​is connected to the second water tank 4; the third water outlet 34, the second water inlet 33 and the fourth water inlet 35 are all located at the bottom of the first water tank 3, the third water outlet 34 is connected to the water inlet of the air energy heat pump unit 2; the second water inlet 33 is used to be connected to the output port of the water supply network 100; the fourth water inlet 35 is connected to the water outlet of the air energy heat pump unit 2; the hot water system also includes: a second circulating pump 10, the second circulating pump 10 is arranged between the third water outlet 34 and the water inlet of the air energy heat pump unit 2 , the third water outlet 34 is connected to the water inlet of the air energy heat pump unit 2 through the second circulation pump 10; the second circulation pump 10 is connected to the control device for communication, and the control device is used to control the start and stop of the second circulation pump 10; wherein, when the control device adjusts the water supply mode of the hot water system to the third water supply mode, the control device controls the second circulation pump 10 to start, and the water in the first water tank 3 enters the air energy heat pump unit 2 through the second circulation pump 10 and the water inlet of the air energy heat pump unit 2 for heating, and the water heated by the air energy heat pump unit 2 enters the first water tank 3 through the water outlet of the air energy heat pump unit 2 and the fourth water inlet 35, so that the first water tank 3 and the air energy heat pump unit 2 are thermally coupled. With such a structural setting, by setting the fourth water inlet at the bottom of the first water tank 3, the heated hot water can enter from the bottom, promote natural convection in the water tank, and help to make the water temperature distribution more uniform. In addition, the heated hot water enters from the bottom, which can avoid the water temperature at the top being too high, reduce the phenomenon of local overheating, and improve the uniformity of water temperature. At the same time, the water with lower water temperature at the bottom of the first water tank 3 is drawn out from the third water outlet 34, and enters from the bottom of the first water tank 3 after being heated, which can form a natural convection cycle, help the water temperature distribution in the first water tank 3 to be more uniform, and reduce the phenomenon of local overheating or overcooling.

[0053] The preset non-solar radiation time interval refers to a preset time period every day when solar heat collection is weak or there is no solar heat source. During this preset time, the solar heat collection effect is poor or it is not suitable for solar heat collection.

[0054] Optionally, the preset non-solar irradiation time interval and the preset solar irradiation time interval are equal to 24 hours.

[0055] Furthermore, the hot water system also includes: a fourth control valve 11, which is arranged between the fourth water inlet end 35 and the water outlet of the air energy heat pump unit 2, and the water outlet of the air energy heat pump unit 2 is connected to the fourth water inlet end 35 through the fourth control valve 11; the control device is communicatively connected to the fourth control valve 11, and the control device is used to control the on and off of the fourth control valve 11; wherein, when the water supply mode of the hot water system is the third water supply mode, the control device controls the fourth control valve 11 to open.

[0056] Optionally, when the control device determines that the acquired current time is within the preset solar radiation time interval or the preset non-solar radiation time interval, it determines whether the first water temperature data t1 is less than or equal to the difference between the preset water temperature t0 in the second water tank 4 and the third preset value T3. T3, control the air energy heat pump unit 2 to start. After the air energy heat pump unit 2 is started, obtain the third water temperature data t3 at the water outlet of the air energy heat pump unit 2; determine whether the third water temperature data t3 is less than or equal to the difference between the preset water temperature t0 and the third preset value T3; if T3, the control device adjusts the water supply mode of the hot water system to the third water supply mode (i.e., the heat pump circulation mode). The second circulation pump 10 is controlled to be turned on, the fourth control valve 11 is opened, and the first circulation pump 6, the first control valve 5, the second control valve 7, and the third control valve 8 are controlled to be closed, so that the water outlet of the air energy heat pump unit 2 is connected to the fourth water inlet 35, and the water with a lower water temperature at the bottom of the first water tank 3 is pumped out from the third water outlet 34 through the second circulation pump 10, and the pumped water enters the air energy heat pump unit 2 through the second circulation pump 10 and the water inlet of the air energy heat pump unit 2 for heating. After heating, the water enters the first water tank 3 through the water outlet of the air energy heat pump unit 2, the fourth control valve 11, and the fourth water inlet 35 in turn.

[0057] The second circulating pump 10 is arranged in parallel with the second control valve 7 and the first circulating pump 6 .

[0058] Specifically, Figure 1As shown, the water outlet of the air energy heat pump unit 2 is connected to the third water inlet end 42 of the second water tank 4; the first water tank 3 has a second water outlet end 32, a third water outlet end 34 and a second water inlet end 33, the second water outlet end 32 is located at the top of the first water tank 3, and the second water outlet end 32 is connected to the second water tank 4; the third water outlet end 34 is located at the bottom of the first water tank 3, and the third water outlet end 34 is connected to the water inlet of the air energy heat pump unit 2; the second water inlet end 33 is used to connect to the output port of the water supply network 100; the hot water system also includes: a fifth control valve 12, which is arranged at the air The outlet of the air energy heat pump unit 2 is connected to the third water inlet end 42 of the second water tank 4 through the fifth control valve 12; the fifth control valve 12 is connected to the control device in communication, and the control device is used to control the on and off of the fourth control valve 11; wherein, when the control device adjusts the water supply mode of the hot water system to the fourth water supply mode, the control device controls the fifth control valve 12 to open, and the water heated by the air energy heat pump unit 2 is supplied to the user side through the water outlet of the air energy heat pump unit 2 and the second water tank 4. With such a structural setting, by setting the fifth control valve 12, the system can flexibly switch the water supply mode to ensure the optimal operation under different conditions. The fifth control valve 12 can ensure that the system switches quickly in different modes, responds to changes in user needs in a timely manner, and improves the response speed of the system. The high-temperature water heated by the air energy heat pump unit 2 is directly sent to the second water tank 4 through the fifth control valve 12, ensuring that the temperature of the hot water supplied to the user is always at a high level, providing a higher quality hot water supply. Directly sending the heated water to the second water tank 4 reduces the heat loss in the intermediate links, improves the temperature stability of the hot water, and improves the overall energy efficiency of the system. At the same time, the system can provide high-temperature hot water more quickly, reducing the waiting time of users.

[0059] Furthermore, the first water inlet end 31 , the second water outlet end 32 , the second water inlet end 33 , the third water outlet end 34 and the fourth water inlet end 35 are arranged at intervals.

[0060] Optionally, when the control device determines that the acquired current time is within the preset solar radiation time interval or the preset non-solar radiation time interval, it determines whether the first water temperature data t1 is less than or equal to the difference between the preset water temperature t0 in the second water tank 4 and the third preset value T3. T3, control the air energy heat pump unit 2 to start. At the same time, obtain the third water temperature data t3 at the water outlet of the air energy heat pump unit 2; determine whether the third water temperature data t3 is less than or equal to the difference between the preset water temperature t0 and the third preset value T3; if At T3, the control device adjusts the water supply mode of the hot water system to the fourth water supply mode (i.e., the heat pump direct supply mode). The second circulation pump 10 is controlled to be turned on, the fifth control valve 12 is controlled to be opened, and the first circulation pump 6, the first control valve 5, the second control valve 7, the third control valve 8, and the fourth control valve 11 are controlled to be closed, so that the water outlet of the air energy heat pump unit 2 is connected with the third water inlet end 42 of the second water tank 4, and the water with a lower water temperature at the bottom of the first water tank 3 is pumped out from the third water outlet end 34 through the second circulation pump 10, and the pumped water enters the air energy heat pump unit 2 through the water inlet of the air energy heat pump unit 2 for heating. After heating, the water enters the second water tank 4 through the water outlet of the air energy heat pump unit 2, the fifth control valve 12, and the third water inlet end 42 of the second water tank 4 in turn, and finally the water in the second water tank 4 flows to the user side through the water supply end 41 of the second water tank 4.

[0061] Specifically, Figure 1 As shown, the hot water system also includes: a sixth control valve 13, which is arranged between the second water inlet end 33 and the output port of the water supply network 100, and the second water inlet end 33 is connected to the output port of the water supply network 100 through the sixth control valve 13; the control device is communicatively connected with the sixth control valve 13, and the control device is used to control the on and off of the sixth control valve 13.

[0062] Furthermore, the sixth control valve 13 is arranged in parallel with the first control valve 5 .

[0063] Optionally, the sixth control valve 13 is in an open state by default. When the water supply mode of the hot water system is the first water supply mode (i.e., solar energy direct supply to users mode) or the fifth water supply mode (i.e., solar energy and heat pump mixed mode), the control device controls the sixth control valve 13 to close.

[0064] Specifically, Figure 1As shown, the hot water system also includes: a second temperature detection member 14, the second temperature detection member 14 is arranged at the output port of the water supply network 100, and the second temperature detection member 14 is used to detect the fourth water temperature data t4 at the output port of the water supply network 100; the second temperature detection member 14 is connected to the control device for communication, and the control device is used to obtain the fourth water temperature data t4 detected by the second temperature detection member 14; wherein, when the current time is within the preset non-solar irradiation time interval, the control device compares the obtained second water temperature data t2 with the first water temperature data t1 and the fourth water temperature data t4 respectively; to determine whether to adjust the water supply mode of the hot water system to the fifth water supply mode according to the comparison result; if the control device adjusts the water supply mode of the hot water system to the fifth water supply mode, the solar collector 1 is thermally coupled with the air energy heat pump unit 2. With such a structural setting, the air energy heat pump unit 2 can be heated by using the water heated by the solar collector 1, thereby reducing the heating energy consumption of the air energy heat pump unit 2 and improving the comprehensive energy efficiency of the system.

[0065] Optionally, when the control device determines that the acquired current time is within the preset non-solar irradiation time interval, the fourth water temperature data t4 detected by the second temperature detection element 14 is acquired, and it is determined whether the second water temperature data t2 is greater than the fourth water temperature data t4, and whether the second water temperature data t2 is less than the first water temperature data t1. ,and , the control device adjusts the water supply mode of the hot water system to the fifth water supply mode (i.e., solar energy and heat pump hybrid mode). At the same time, the sixth control valve 13 and the second control valve 7 are controlled to be closed, the first control valve 5, the third control valve 8 and the fifth control valve 12 are controlled to be opened, the second circulation pump 10 is turned on, and the air energy heat pump unit 2 is controlled to be turned on.

[0066] Then, the water outputted from the output port of the water supply network 100 passes through the first control valve 5 and the water inlet of the solar collector 1 in turn to enter the solar collector 1 for heating, and then the heated water passes through the water outlet of the solar collector 1 and the first water inlet end 31 to enter the first water tank 3. At the same time, the water in the first water tank 3 is pumped out from the third water outlet end 34 by the second circulation pump 10, and the pumped water enters the air energy heat pump unit 2 through the second circulation pump 10 and the water inlet of the air energy heat pump unit 2 for heating, and the water heated by the air energy heat pump unit 2 passes through the water outlet of the air energy heat pump unit 2, the fifth control valve 12 and the third water inlet end 42 of the second water tank 4 in turn to enter the second water tank 4, and finally the water in the second water tank 4 flows to the user side through the water supply end 41 of the second water tank 4.

[0067] Specifically, the hot water system also includes: a timing device for timing according to a preset solar radiation time interval and a preset non-solar radiation time interval; a control device is connected in communication with the timing device, and the control device is used to obtain the current time information of the timing device. With such a structural setting, by setting the timing device, the timing control can be performed according to the preset solar radiation time interval and the non-solar radiation time interval, which helps to utilize solar energy at the best time and improve the energy utilization efficiency of the hot water system. In addition, the control device is connected in communication with the timing device and can obtain the current time information of the timing device. Using the time information, the working state of the hot water system can be automatically controlled according to the preset time interval, thereby helping to realize the intelligent management of the hot water system and improve the operating efficiency and energy utilization of the system.

[0068] Specifically, Figure 1 As shown, the hot water system also includes: a third temperature detection component 16, which is arranged in the first water tank 3; the third temperature detection component 16 is used to detect the first water temperature data t1 of the first water tank 3; the third temperature detection component 16 is connected to the control device to transmit the detected first water temperature data t1 to the control device.

[0069] Specifically, the hot water system also includes: a fourth temperature detection component 17, which is arranged in the solar collector 1; the fourth temperature detection component 17 is used to detect the second water temperature data t2 of the solar collector 1; the fourth temperature detection component 17 is connected to the control device to transmit the detected second water temperature data t2 to the control device.

[0070] Optionally, the first temperature detecting element 9 is a first temperature sensor; the second temperature detecting element 14 is a second temperature sensor; the third temperature detecting element 16 is a third temperature sensor; and the fourth temperature detecting element 17 is a fourth temperature sensor.

[0071] Specifically, the hot water system further includes: a fifth temperature detection component, which is arranged at the water inlet of the air energy heat pump unit 2 and is used to detect fifth water temperature data t5 at the water inlet of the air energy heat pump unit 2 .

[0072] Optionally, the fifth temperature detecting element is a fifth temperature sensor.

[0073] Specifically, the hot water system also includes: a sixth temperature detection component 15, which is arranged in the second water tank 4, and the sixth temperature detection component 15 is used to detect the sixth water temperature data t6 in the second water tank 4; the control device is communicated with the sixth temperature detection component 15, and the control device is used to obtain the sixth water temperature data t6 and determine whether the water temperature in the second water tank 4 reaches the preset water temperature t0.

[0074] Optionally, the sixth temperature detecting member 15 is a sixth temperature sensor.

[0075] Among them, "the preset water temperature t0 in the second water tank 4" can be understood as the preset target temperature of the hot water in the second water tank 4. Since the second water tank 4 is connected to the user side, when the water temperature in the second water tank 4 reaches the preset water temperature t0, it reaches the target temperature set by the user. That is, the preset water temperature t0 is equal to the target temperature set by the user.

[0076] Optionally, the first temperature detection element 9, the second temperature detection element 14, the third temperature detection element 16, the fourth temperature detection element 17, the fifth temperature detection element and the sixth temperature detection element 15 can monitor the corresponding water temperature data in real time, and send the detected corresponding water temperature data to the control device, and the control device makes real-time judgments based on the acquired corresponding water temperature data, and timely adjusts the water supply mode of the hot water system according to the judgment results.

[0077] The present invention provides a control method, which is applied to the hot water system of the above embodiment. Figure 2 As shown, the control method includes: S11 , obtaining current time information, first water temperature data t1 of the first water tank 3 , and second water temperature data t2 of the solar thermal collector 1 .

[0078] S12, adaptively adjusting the water supply mode of the hot water system according to the acquired current time information and the acquired first water temperature data t1 and / or the acquired second water temperature data t2.

[0079] By adopting such a control method, by obtaining the current time information, the first water temperature data t1 of the first water tank 3 and the second water temperature data t2 of the solar collector 1, the water supply mode of the hot water system can be intelligently judged and adaptively adjusted according to the current time information obtained and the first water temperature data t1 and / or the second water temperature data t2 obtained, so as to switch the heating mode under different conditions, so as to make full use of the hot water in the solar collector close to the required temperature, and improve the overall energy utilization efficiency of the system. At the same time, by adaptively adjusting the water supply mode, the hot water supply can be optimized according to the actual heat demand and environmental conditions, and the user experience can be improved. And the air energy heat pump unit 2 is combined with the solar collector 1 and intelligently linked and controlled, so as to give full play to the energy-saving advantages of solar energy and the comfort of the hot water system. In addition, by participating in adjusting the water supply mode of the hot water system according to the current time obtained, the clean heat source of solar energy can be fully utilized. The control method of the present invention can effectively solve the technical problem that the solar energy and air energy combined heating system in the prior art fails to make full use of the hot water in the solar collector close to the required temperature, thereby reducing the operation efficiency of the system and the user experience.

[0080] Specifically, the method for adaptively adjusting the water supply mode of the hot water system according to the acquired current time information and the acquired first water temperature data t1 and / or the acquired second water temperature data t2 includes: if the current time is within the preset solar radiation time interval, determining whether the difference between the second water temperature data t2 and the first water temperature data t1 is greater than or equal to the first preset value T1; if , adjust the water supply mode of the hot water system to the second water supply mode, so that the first water tank 3 and the solar collector 1 are thermally coupled; if , judge whether the second water temperature data t2 is greater than or equal to the first water temperature data t1, so as to adjust the water supply mode of the hot water system according to the judgment result. With such a control method, the system can give priority to using the solar collector 1 to heat cold water during the period of sufficient solar energy, reduce the dependence on the air energy heat pump, maximize the use of solar energy resources, and thus significantly reduce the operating cost and energy consumption of the system.

[0081] The first preset value T1 is a correction value to prevent the device from starting and stopping frequently. The first preset value T1 can be adjusted according to actual conditions.

[0082] Optionally, the first preset value T1 is 6°C.

[0083] Specifically, the control method further includes: during the process of the hot water system supplying water to the user side in the second water supply mode, determining whether the difference between the second water temperature data t2 and the first water temperature data t1 is less than or equal to the second preset value T2; if , the hot water system will stop the current second water supply mode; wherein T1>T2. Using such a control method, unnecessary heating operations can be avoided, which can ensure that the system can provide high-temperature hot water more quickly when needed, reduce the waiting time of users, and effectively reduce energy waste.

[0084] The second preset value T2 is a correction value to prevent the device from being frequently started and stopped. The second preset value T2 can be adjusted according to actual conditions.

[0085] Optionally, the second preset value T2 is 2°C.

[0086] Furthermore, if , judging whether the second water temperature data t2 is greater than or equal to the first water temperature data t1, and adjusting the water supply mode of the hot water system according to the judging result, comprising: if , adjust the water supply mode of the hot water system to the first water supply mode, so that the solar collector 1 heats the water transported by the water supply network 100 and supplies it to the user side through at least two water tanks; if , judging whether the first water temperature data t1 is less than or equal to the difference between the preset water temperature t0 in the second water tank 4 and the third preset value T3; and controlling whether the air energy heat pump unit 2 is turned on according to the judgment result. By adopting such a control method and such a method of dynamically adjusting the water supply mode, the energy utilization efficiency of the hot water system can be improved, the energy consumption can be reduced, and the temperature and stability of the water used by the user can be ensured.

[0087] The third preset value T3 is a correction value to prevent the device from being frequently started and stopped. The third preset value T3 is set according to the design of the air energy heat pump unit 2.

[0088] Optionally, the third preset value T3 is 5°C.

[0089] Specifically, the method for controlling whether the air energy heat pump unit 2 is turned on according to the judgment result includes: if T3, control the air energy heat pump unit 2 to start; after the air energy heat pump unit 2 is started, obtain the third water temperature data t3 at the water outlet of the air energy heat pump unit 2; determine whether the third water temperature data t3 is less than or equal to the difference between the preset water temperature t0 and the third preset value T3; if T3, adjust the water supply mode of the hot water system to the third water supply mode, so that the first water tank 3 and the air energy heat pump unit 2 are thermally coupled; if T3, adjusting the water supply mode of the hot water system to the fourth water supply mode, so that the air energy heat pump unit 2 heats the water and directly supplies it to the user side.

[0090] Furthermore, if T3, the hot water system continues to maintain the first water supply mode.

[0091] Specifically, the control method also includes: after the air energy heat pump unit 2 is turned on, it is determined whether the first water temperature data t1 is greater than or equal to the preset water temperature t0 in the second water tank 4, and whether the fifth water temperature data t5 at the water inlet of the air energy heat pump unit 2 is greater than or equal to the preset water temperature t0; if ,and , control the air energy heat pump unit 2 to shut down. With this control method, the operation of the heat pump unit can be stopped in time to avoid energy waste caused by overheating. Ensure that the user side obtains the expected stable hot water temperature and improve the user experience.

[0092] Specifically, the method for adaptively adjusting the water supply mode of the hot water system according to the acquired current time information and the acquired first water temperature data t1 and / or the acquired second water temperature data t2 also includes: if the current time is within the preset non-solar radiation time interval, obtaining the fourth water temperature data t4 at the output port of the water supply network 100; determining whether the second water temperature data t2 is greater than the fourth water temperature data t4, and whether the second water temperature data t2 is less than the first water temperature data t1; if ,and , adjust the water supply mode of the hot water system to the fifth water supply mode, so that the solar collector 1 and the air energy heat pump unit 2 are thermally coupled; if , adjust the water supply mode of the hot water system to the third water supply mode or the fourth water supply mode; if the water supply mode of the hot water system is the third water supply mode, the first water tank 3 is thermally coupled with the air energy heat pump unit 2; if the water supply mode of the hot water system is the fourth water supply mode, the air energy heat pump unit 2 heats the water and directly supplies it to the user side. With such a control method, the air energy heat pump unit 2 can give priority to using solar medium-temperature water, reduce the heating energy consumption of the air energy heat pump unit 2, and improve the overall energy efficiency of the system.

[0093] Optionally, the specific steps of the control method of the solar energy and air energy coupled hot water system are: Step 1, obtaining current time information, first water temperature data t1 of the first water tank 3 and second water temperature data t2 of the solar collector 1.

[0094] Step 2, if the current time is within the preset solar radiation time interval, determine whether the difference between the second water temperature data t2 and the first water temperature data t1 is greater than or equal to the first preset value T1; if t2-t1≥T1, adjust the water supply mode of the hot water system to the second water supply mode (i.e., solar heat collection cycle mode). At this time, the control device controls the first circulation pump 6 to open, the second control valve 7 to open, and the third control valve 8 to open, so that the water inlet of the solar collector 1 is connected to the third water outlet 34, and the water with lower water temperature at the bottom of the first water tank 3 is pumped out from the third water outlet 34 through the first circulation pump 6, and the pumped water passes through the second control valve 7, the first circulation pump 6 and the water inlet of the solar collector 1 in turn and enters the solar collector 1 for heating; the heated water enters the first water tank 3 through the water outlet of the solar collector 1 and the first water inlet 31, and then the water in the first water tank 3 is transported to the second water tank 4 through the second water outlet 32, and finally, the water with the highest temperature in the first water tank 3 is transported to the user side from the water supply end 41 of the second water tank 4.

[0095] During the process of the hot water system supplying water to the user side in the second water supply mode, it is determined whether the difference between the second water temperature data t2 and the first water temperature data t1 is less than or equal to the first preset value T2; if t2 - t1 ≤ T2, the hot water system will stop the current second water supply mode; where T1 > T2. The first circulation pump 6 is shut down and the second control valve 7 is closed. The hot water system adaptively switches the water supply mode of the hot water system to other water supply modes according to the obtained current time information and the obtained first water temperature data t1 and / or the obtained second water temperature data t2.

[0096] Step 3, if t2 - t1 < T1, it is determined whether the second water temperature data t2 is greater than or equal to the first water temperature data t1. If t2 ≥ t1, the water supply mode of the hot water system is adjusted to the first water supply mode (i.e., the solar direct supply to the user mode). At this time, the control device controls the first circulation pump 6 to stop, the second control valve 7 and the sixth control valve 13 to close, and the first control valve 5 and the third control valve 8 to open. So that the water inlet of the solar collector 1 is communicated with the outlet of the water supply network 100, and the water output from the outlet of the water supply network 100 sequentially enters the solar collector 1 through the first control valve 5 and the water inlet of the solar collector 1 for heating, and then the heated water enters the first water tank 3 through the water outlet of the solar collector 1, the third control valve 8 and the first water inlet end 31, and then the water in the first water tank 3 is transported to the second water tank 4 through the second water outlet end 32. Finally, the heated water is transported from the water supply end 41 of the second water tank 4 to the user side.

[0097] Step 4, if t2 < t1, it is determined whether the first water temperature data t1 is less than or equal to the difference between the preset water temperature t0 in the second water tank 4 and the third preset value T3; if t1 ≤ t0 - T3, the air source heat pump unit 2 is controlled to start; after the air source heat pump unit 2 starts, the third water temperature data t3 at the water outlet of the air source heat pump unit 2 is obtained; it is determined whether the third water temperature data t3 is less than or equal to the difference between the preset water temperature t0 and the third preset value T3; if t3 ≤ t0 - T3, the water supply mode of the hot water system is adjusted to the third water supply mode (i.e., the heat pump circulation mode). At this time, the control device controls the first circulation pump 6 to stop, the first control valve 5, the second control valve 7, and the third control valve 8 to close. At the same time, the second circulation pump 10 is controlled to start and the fourth control valve 11 and the sixth control valve 13 are opened, so that the water outlet of the air source heat pump unit 2 is communicated with the fourth water inlet end 35. The water with a lower temperature at the bottom of the first water tank 3 is pumped out through the second circulation pump 10 from the third water outlet end 34, and the pumped water enters the air source heat pump unit 2 through the second circulation pump 10 and the water inlet of the air source heat pump unit 2 for heating, and the heated water sequentially enters the first water tank 3 through the water outlet of the air source heat pump unit 2, the fourth control valve 11 and the fourth water inlet end 35.

[0098] The second circulating pump 10 is arranged in parallel with the second control valve 7 and the first circulating pump 6 .

[0099] Step 5, if t3>t0-T3, adjust the water supply mode of the hot water system to the fourth water supply mode (i.e., the heat pump direct supply mode). At this time, the control device controls the fourth control valve 11 to be closed, the second circulation pump 10 to be turned on, the fifth control valve 12 and the sixth control valve 13 to be opened, so that the water outlet of the air energy heat pump unit 2 is connected to the third water inlet end 42 of the second water tank 4, and the water with lower water temperature at the bottom of the first water tank 3 is pumped out from the third water outlet end 34 through the second circulation pump 10, and the pumped water enters the air energy heat pump unit 2 through the water inlet of the air energy heat pump unit 2 for heating. The heated water enters the second water tank 4 through the water outlet of the air energy heat pump unit 2, the fifth control valve 12 and the third water inlet end 42 of the second water tank 4 in turn, and finally the water in the second water tank 4 flows to the user side through the water supply end 41 of the second water tank 4.

[0100] After the air energy heat pump unit 2 is turned on, it is determined whether the first water temperature data t1 is greater than or equal to the preset water temperature t0 in the second water tank 4, and whether the fifth water temperature data t5 at the water inlet of the air energy heat pump unit 2 is greater than or equal to the preset water temperature t0; if t1≥t0, and t5≥t0, the air energy heat pump unit 2 is controlled to shut down. The control device closes the fourth control valve 11 and the fifth control valve 12, and shuts down the second circulation pump 10. The hot water system is in standby mode.

[0101] Step 6: If the current time is within a non-solar-irradiation time interval, obtain the fourth water temperature data t4 at the outlet of the water supply network 100; determine whether the second water temperature data t2 is greater than the fourth water temperature data t4 and whether the second water temperature data t2 is less than the first water temperature data t1; if t2 > t4 and t2 < t1, adjust the water supply mode of the hot water system to the fifth water supply mode. At this time, the control device controls the sixth control valve 13, the second control valve 7, and the fourth control valve 11 to close and the first circulation pump 6 to stop. And control the first control valve 5, the third control valve 8, and the fifth control valve 12 to open, and start the second circulation pump 10. Make the water output from the outlet of the water supply network 100 enter the solar collector 1 through the first control valve 5 and the water inlet of the solar collector 1 in sequence for heating, and then the heated water enters the first water tank 3 through the water outlet of the solar collector 1, the third control valve 8, and the first water inlet end 31. At the same time, the water in the first water tank 3 is pumped out from the third water outlet end 34 by the second circulation pump 10, and the pumped-out water enters the air source heat pump unit 2 through the second circulation pump 10 and the water inlet of the air source heat pump unit 2 for heating. The water heated by the air source heat pump unit 2 enters the second water tank 4 through the water outlet of the air source heat pump unit 2, the fifth control valve 12, and the third water inlet end 42 of the second water tank 4 in sequence, and finally the water in the second water tank 4 flows to the user side through the water supply end 41 of the second water tank 4.

[0102] Step 7: If t2 ≤ t4, control the air source heat pump unit 2 to start, and obtain the third water temperature data t3 at the outlet of the air source heat pump unit 2; determine whether the third water temperature data t3 is less than or equal to the difference between the preset water temperature t0 and the third preset value T3, and adjust the water supply mode of the hot water system to the third water supply mode or the fourth water supply mode according to the judgment result.

[0103] The present invention provides an electronic device, including: a processor, and a memory connected to the processor; the memory is used to store a computer program; the processor is used to call and execute the computer program in the memory to execute the control method of the above embodiment.

[0104] It should be noted that the terms "first", "second", etc. in the description, claims, and drawings of the present application are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device including a series of steps or units does not necessarily need to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0105] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0106] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0107] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0108] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A solar energy and air energy coupled hot water system, characterized in that: The hot water system comprises: A solar thermal collector (1) and an air energy heat pump unit (2); At least two water tanks, at least two of the water tanks are connected in series in sequence, a first water tank (3) of the at least two water tanks is respectively connected to the solar thermal collector (1) and the air energy heat pump unit (2); a water supply end (41) of the second water tank (4) of the at least two water tanks is used to be connected to a user side; A control device is used to obtain current time information, first water temperature data t1 of the first water tank (3) and second water temperature data t2 of the solar collector (1), and adaptively adjust the water supply mode of the hot water system according to the obtained current time information and the obtained first water temperature data t1 and / or the obtained second water temperature data t2.

2. The hot water system according to claim 1, characterized in that: The first water tank (3) has a first water inlet (31) and a second water outlet (32); the first water inlet (31) is connected to the water outlet of the solar thermal collector (1); the second water outlet (32) is connected to the second water tank (4); the water inlet of the solar thermal collector (1) is connected to the outlet of the water supply network (100); the hot water system further comprises: A first control valve (5) is arranged between a water inlet of the solar thermal collector (1) and an output of the water supply network (100), wherein the water inlet of the solar thermal collector (1) is connected to the output of the water supply network (100) via the first control valve (5); the first control valve (5) is in communication connection with the control device, and the control device is used to control the on and off of the first control valve (5); When the current time is within a preset solar radiation time interval and the control device adjusts the water supply mode of the hot water system to the first water supply mode, the control device controls the first control valve (5) to open, and the solar collector (1) heats the water transported by the water supply network (100) and supplies the water to the user side through at least two of the water tanks.

3. The hot water system according to claim 1, characterized in that: The first water tank (3) has a first water inlet (31), a second water inlet (33), a second water outlet (32) and a third water outlet (34), and the first water inlet (31) and the second water outlet (32) are both located at the top of the first water tank (3), and the second water inlet (33) and the third water outlet (34) are both located at the bottom of the first water tank (3); the first water inlet (31) is connected to the water outlet of the solar thermal collector (1); the second water inlet (33) is used to be connected to the output of the water supply network (100); the second water outlet (32) is connected to the second water tank (4); the third water outlet (34) is connected to the water inlet of the solar thermal collector (1); the hot water system further comprises: A first circulation pump (6) is arranged between the third water outlet (34) and the water inlet of the solar thermal collector (1), and the first circulation pump (6) is connected to the third water outlet (34) and the water inlet of the solar thermal collector (1) respectively; the first circulation pump (6) is in communication connection with the control device, and the control device is used to control the start and stop of the first circulation pump (6); When the current time is within a preset solar radiation time interval and the control device adjusts the water supply mode of the hot water system to the second water supply mode, the control device controls the first circulation pump (6) to start; the water in the first water tank (3) enters the solar collector (1) through the first circulation pump (6) and the water inlet of the solar collector (1) to be heated, so that the first water tank (3) and the solar collector (1) are thermally coupled.

4. The hot water system according to claim 3, characterized in that: The hot water system also includes: a second control valve (7) disposed between the third water outlet (34) and the first circulation pump (6), the first circulation pump (6) being connected to the third water outlet (34) via the second control valve (7); the second control valve (7) being communicatively connected to the control device, the control device being used to control the on and off of the second control valve (7); Wherein, when the water supply mode of the hot water system is the second water supply mode, the control device controls the second control valve (7) to open.

5. The hot water system according to claim 2 or 4, characterized in that: The hot water system further comprises: a third control valve (8), the third control valve (8) being connected to the water outlet of the solar collector (1) and the first water inlet (31) respectively; the control device being communicatively connected to the third control valve (8), the control device being used to control the on and off of the third control valve (8).

6. The hot water system according to claim 1, characterized in that: The hot water system also includes: A first temperature detection component (9) is arranged at the water outlet of the air energy heat pump unit (2); the first temperature detection component (9) is used to detect third water temperature data t3 at the water outlet of the air energy heat pump unit (2); the control device is communicatively connected with the first temperature detection component (9), and the control device is used to obtain the third water temperature data t3 detected by the first temperature detection component (9); When the current time is within a preset solar radiation time interval or a preset non-solar radiation time interval, and the control device controls the air energy heat pump unit (2) to start up according to the first water temperature data t1 obtained, the control device adjusts the water supply mode of the hot water system to the third water supply mode or the fourth water supply mode according to the third water temperature data t3 obtained.

7. The hot water system according to claim 6, characterized in that: The first water tank (3) has a second water outlet (32), a third water outlet (34), a second water inlet (33) and a fourth water inlet (35); the second water outlet (32) is located at the top of the first water tank (3), and the second water outlet (32) is connected to the second water tank (4); the third water outlet (34), the second water inlet (33) and the fourth water inlet (35) are all located at the bottom of the first water tank (3); the third water outlet (34) is connected to the water inlet of the air energy heat pump unit (2); the second water inlet (33) is used to be connected to the output port of the water supply network (100); the fourth water inlet (35) is connected to the water outlet of the air energy heat pump unit (2); the hot water system further comprises: a second circulation pump (10) disposed between the third water outlet (34) and the water inlet of the air energy heat pump unit (2), the third water outlet (34) being connected to the water inlet of the air energy heat pump unit (2) via the second circulation pump (10); the second circulation pump (10) being communicatively connected to the control device, the control device being used to control the start and stop of the second circulation pump (10); When the control device adjusts the water supply mode of the hot water system to the third water supply mode, the control device controls the second circulation pump (10) to start, and the water in the first water tank (3) enters the air energy heat pump unit (2) through the second circulation pump (10) and the water inlet of the air energy heat pump unit (2) for heating, and the water heated by the air energy heat pump unit (2) enters the first water tank (3) through the water outlet of the air energy heat pump unit (2) and the fourth water inlet (35), so that the first water tank (3) and the air energy heat pump unit (2) are thermally coupled.

8. The hot water system according to claim 7, characterized in that: The hot water system further comprises: a fourth control valve (11), which is arranged between the fourth water inlet (35) and the water outlet of the air energy heat pump unit (2), the water outlet of the air energy heat pump unit (2) being connected to the fourth water inlet (35) via the fourth control valve (11); the control device is communicatively connected to the fourth control valve (11), and the control device is used to control the on and off of the fourth control valve (11); Wherein, when the water supply mode of the hot water system is the third water supply mode, the control device controls the fourth control valve (11) to open.

9. The hot water system according to claim 6, characterized in that: The water outlet of the air-energy heat pump unit (2) is connected to the third water inlet (42) of the second water tank (4); the first water tank (3) has a second water outlet (32), a third water outlet (34) and a second water inlet (33); the second water outlet (32) is located at the top of the first water tank (3), and the second water outlet (32) is connected to the second water tank (4); the third water outlet (34) is located at the bottom of the first water tank (3), and the third water outlet (34) is connected to the water inlet of the air-energy heat pump unit (2); the second water inlet (33) is used to be connected to the output port of the water supply network (100); the hot water system further comprises: A fifth control valve (12) is arranged between the water outlet of the air energy heat pump unit (2) and the third water inlet end (42) of the second water tank (4); the water outlet of the air energy heat pump unit (2) is connected to the third water inlet end (42) of the second water tank (4) through the fifth control valve (12); the fifth control valve (12) is in communication connection with the control device, and the control device is used to control the on and off of the fourth control valve (11); When the control device adjusts the water supply mode of the hot water system to the fourth water supply mode, the control device controls the fifth control valve (12) to open, and the water heated by the air energy heat pump unit (2) is supplied to the user side through the water outlet of the air energy heat pump unit (2) and the second water tank (4).

10. The hot water system according to claim 3, 7 or 9, characterized in that: The hot water system further comprises: a sixth control valve (13), the sixth control valve (13) being arranged between the second water inlet end (33) and the output port of the water supply network (100), the second water inlet end (33) being connected to the output port of the water supply network (100) via the sixth control valve (13); the control device being communicatively connected to the sixth control valve (13), the control device being used to control the on and off of the sixth control valve (13).

11. The hot water system according to claim 1, characterized in that: The hot water system further comprises: a second temperature detection element (14), the second temperature detection element (14) being arranged at an output port of the water supply network (100), the second temperature detection element (14) being used to detect fourth water temperature data t4 at the output port of the water supply network (100); the second temperature detection element (14) being communicatively connected to the control device, the control device being used to obtain the fourth water temperature data t4 detected by the second temperature detection element (14); When the current time is within a preset non-solar radiation time interval, the control device compares the acquired second water temperature data t2 with the first water temperature data t1 and the fourth water temperature data t4 respectively; based on the comparison result, it is determined whether to adjust the water supply mode of the hot water system to the fifth water supply mode; if the control device adjusts the water supply mode of the hot water system to the fifth water supply mode, the solar collector (1) is thermally coupled with the air energy heat pump unit (2).

12. The hot water system according to claim 1, characterized in that The hot water system also includes: A timing device for timing according to a preset solar radiation time interval and a preset non-solar radiation time interval; a control device is in communication connection with the timing device, and the control device is used to obtain current time information of the timing device; and / or, a third temperature detection component (16), the third temperature detection component (16) being arranged in the first water tank (3); the third temperature detection component (16) being used to detect first water temperature data t1 of the first water tank (3); the third temperature detection component (16) being connected to the control device to transmit the detected first water temperature data t1 to the control device; and / or, A fourth temperature detection component (17), the fourth temperature detection component (17) being arranged in the solar thermal collector (1); the fourth temperature detection component (17) being used to detect second water temperature data t2 of the solar thermal collector (1); the fourth temperature detection component (17) being connected to the control device to transmit the detected second water temperature data t2 to the control device.

13. A control method, characterized in that: The control method is applied to the hot water system according to any one of claims 1 to 12, and the control method comprises: Acquiring current time information, first water temperature data t1 of the first water tank (3), and second water temperature data t2 of the solar thermal collector (1); The water supply mode of the hot water system is adaptively adjusted according to the acquired current time information and the acquired first water temperature data t1 and / or the acquired second water temperature data t2.

14. The control method according to claim 13, characterized in that: The method for adaptively adjusting the water supply mode of the hot water system according to the acquired current time information and the acquired first water temperature data t1 and / or the acquired second water temperature data t2 includes: If the current time is within the preset solar radiation time interval, determine whether the difference between the second water temperature data t2 and the first water temperature data t1 is greater than or equal to a first preset value T1; like , adjusting the water supply mode of the hot water system to a second water supply mode, so that the first water tank (3) and the solar thermal collector (1) are thermally coupled; like , determine whether the second water temperature data t2 is greater than or equal to the first water temperature data t1, so as to adjust the water supply mode of the hot water system according to the determination result.

15. The control method according to claim 14, characterized in that: The control method further comprises: During the process of the hot water system supplying water to the user side in the second water supply mode, determining whether the difference between the second water temperature data t2 and the first water temperature data t1 is less than or equal to a second preset value T2; like , the hot water system will stop the current second water supply mode; Among them, T1>T2.

16. The control method according to claim 14, characterized in that: If , judging whether the second water temperature data t2 is greater than or equal to the first water temperature data t1, and adjusting the water supply mode of the hot water system according to the judging result, comprising: like , adjusting the water supply mode of the hot water system to a first water supply mode, so that the solar collector (1) heats the water transported by the water supply network (100) and supplies the water to the user side through at least two water tanks; like , judging whether the first water temperature data t1 is less than or equal to the difference between the preset water temperature t0 in the second water tank (4) and a third preset value T3; Based on the judgment result, control is performed to determine whether the air energy heat pump unit (2) is turned on.

17. The control method according to claim 16, characterized in that: The method for controlling whether the air energy heat pump unit (2) is turned on according to the judgment result comprises: like T3, controlling the air energy heat pump unit (2) to start up; After the air energy heat pump unit (2) is started, third water temperature data t3 at the water outlet of the air energy heat pump unit (2) is obtained; Determine whether the third water temperature data t3 is less than or equal to the difference between the preset water temperature t0 and the third preset value T3; like T3, adjusting the water supply mode of the hot water system to a third water supply mode, so that the first water tank (3) and the air energy heat pump unit (2) are thermally coupled; like T3, adjusting the water supply mode of the hot water system to the fourth water supply mode, so that the air energy heat pump unit (2) heats the water and directly supplies it to the user side.

18. The control method according to claim 17, characterized in that: The control method further comprises: After the air energy heat pump unit (2) is turned on, it is determined whether the first water temperature data t1 is greater than or equal to the preset water temperature t0 in the second water tank (4), and whether the fifth water temperature data t5 at the water inlet of the air energy heat pump unit (2) is greater than or equal to the preset water temperature t0; like ,and , controlling the air energy heat pump unit (2) to shut down.

19. The control method according to claim 13, characterized in that: The method for adaptively adjusting the water supply mode of the hot water system according to the acquired current time information and the acquired first water temperature data t1 and / or the acquired second water temperature data t2 further includes: If the current time is within a preset non-solar radiation time interval, obtaining fourth water temperature data t4 at the output port of the water supply network (100); Determine whether the second water temperature data t2 is greater than the fourth water temperature data t4, and whether the second water temperature data t2 is less than the first water temperature data t1; like ,and , adjusting the water supply mode of the hot water system to the fifth water supply mode, so that the solar collector (1) and the air energy heat pump unit (2) are thermally coupled; like , adjusting the water supply mode of the hot water system to the third water supply mode or the fourth water supply mode; Wherein, if the water supply mode of the hot water system is the third water supply mode, the first water tank (3) is thermally coupled with the air energy heat pump unit (2); if the water supply mode of the hot water system is the fourth water supply mode, the air energy heat pump unit (2) heats the water and then directly supplies it to the user side.

20. An electronic device, characterized in that: include: A processor, and a memory connected to the processor; The memory is used to store computer programs; The processor is used to call and execute the computer program in the memory to perform the control method according to any one of claims 13 to 19.

Images