A roof solar heat pump system

Abstract

The utility model relates to a heat pump system technical field especially discloses a roof solar heat pump system, including solar heat collecting mechanism, auxiliary heat source mechanism, heat storage water tank and control center, solar heat collecting mechanism, auxiliary heat source mechanism, heat storage water tank all are connected with control center electric connection, the solar heat collecting mechanism includes solar collector, with the water inlet port of solar collector is connected first water inlet pipeline, with the water outlet port of solar collector is connected first water outlet pipeline, the other end of first water outlet pipeline is connected with heat storage water tank, the external cold water enters solar collector through first water inlet pipeline, the water flow of solar collector is flowed into heat storage water tank, and the water source of heat storage water tank is assisted heating after auxiliary heat source mechanism and returns to heat storage water tank. Control center carries out electric connection to each mechanism to realize the whole collaborative control, effectively promoted the stability and energy utilization efficiency of system, solved the limitation of single solar system.

Description

Technical Field

[0001] This utility model relates to the field of heat pump system technology, and in particular discloses a rooftop solar heat pump system. Background Technology

[0002] Against the backdrop of ever-increasing energy demand and ever-improving environmental protection requirements, solar energy, as a clean energy source, is widely used in hot water supply systems. However, simple solar thermal systems are greatly affected by factors such as weather and seasons, resulting in unstable hot water supply and difficulty in accurately controlling water temperature and level. At the same time, existing solar heat pump systems still have room for improvement in areas such as pipe insulation, equipment heat dissipation, collector installation stability, and coordinated control of various components. For example, there are issues such as heat loss in pipes, insufficient heat dissipation efficiency during heat pump operation, inconvenience in adjusting the installation angle of the collector, and imprecise control logic in the system's water replenishment, return, and supply stages. These issues lead to low overall system energy efficiency and poor operational reliability. Therefore, there is an urgent need for a rooftop solar heat pump system that integrates efficient control, optimized structure, and coordinated operation of various components to improve energy utilization efficiency and hot water supply stability. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a rooftop solar heat pump system.

[0004] To achieve the above objectives, this utility model provides a rooftop solar heat pump system, comprising a solar collector, an auxiliary heat source, a hot water storage tank, and a control center. The solar collector, auxiliary heat source, and hot water storage tank are all electrically connected to the control center. The solar collector includes a solar collector, a first inlet pipe connected to the inlet port of the solar collector, and a first outlet pipe connected to the outlet port of the solar collector. The other end of the first outlet pipe is connected to the hot water storage tank. External cold water enters the solar collector through the first inlet pipe, and the water discharged from the solar collector flows into the hot water storage tank. The auxiliary heat source heats the water in the hot water storage tank and then returns it to the hot water storage tank.

[0005] This rooftop solar heat pump system consists of a solar collector, an auxiliary heat source, a hot water storage tank, and a control center. The solar collector heats cold water using solar collectors and sends it to the hot water storage tank through the first outlet pipe. External cold water enters the collector through the first inlet pipe, driving the flow of hot water. The auxiliary heat source heats the water in the hot water storage tank and then returns it. The control center electrically connects all the components to achieve overall coordinated control, effectively improving the system's stability and energy efficiency, and overcoming the limitations of a single solar energy system.

[0006] The first inlet pipe is equipped with a first solenoid valve electrically connected to the control center, and the first outlet pipe is equipped with a first temperature sensor electrically connected to the control center. When the first temperature sensor senses that the water temperature of the first outlet pipe is greater than a preset value, the control center controls the first solenoid valve to open, and external cold water enters the solar collector through the first inlet pipe. When the first temperature sensor senses that the water temperature of the first outlet pipe is lower than the preset value, the control center controls the first solenoid valve to close.

[0007] The first inlet pipe of this rooftop solar heat pump system is equipped with a first solenoid valve electrically connected to the control center, and the first outlet pipe is equipped with a first temperature sensor electrically connected to the control center. When the first temperature sensor detects that the water temperature in the first outlet pipe is greater than a preset value, the control center controls the first solenoid valve to open, and external cold water enters the solar collector through the first inlet pipe, pushing hot water into the hot water storage tank. When the first temperature sensor detects that the water temperature in the first outlet pipe is lower than the preset value, the control center controls the first solenoid valve to close. Through the linkage control of temperature and valve, precise regulation of hot water delivery is achieved, improving the efficiency and stability of system operation.

[0008] The hot water storage tank is equipped with a first water level sensor that is electrically connected to the control center. The hot water storage tank is also equipped with a second water inlet pipe that is connected to external cold water. The second water inlet pipe is equipped with a second solenoid valve that is connected to the control center. When the first water level sensor detects that the water level inside the hot water storage tank is greater than a preset value, the control center controls the first solenoid valve of the first water inlet pipe and / or the second solenoid valve of the second water inlet pipe to close.

[0009] The hot water storage tank of this rooftop solar heat pump system is equipped with a first water level sensor electrically connected to the control center. It is also connected to external cold water through a second inlet pipe, which is equipped with a second solenoid valve connected to the control center. When the first water level sensor detects that the water level inside the hot water storage tank is higher than the preset value, the control center will control the first solenoid valve of the first inlet pipe and / or the second solenoid valve of the second inlet pipe to close according to the actual situation. This achieves dual protection and flexible control of the water level, effectively avoiding the risks caused by excessively high water levels and improving the accuracy and reliability of the system's water replenishment control.

[0010] The heat pump system also includes a return water system electrically connected to the control center. The return water system includes a return water pipe, a return water solenoid valve installed on the return water pipe, and a third temperature sensor installed on the return water pipe and electrically connected to the control center. One end of the return water pipe is connected to the hot water storage tank, and the other end is connected to the solar collector. When the third temperature sensor detects that the water source temperature in the return water pipe is lower than a preset value, the control center controls the return water solenoid valve to open, so that the low-temperature water at the bottom of the hot water storage tank flows back to the solar collector for heating.

[0011] Low-temperature water tends to accumulate at the bottom of hot water storage tanks, leading to reduced hot water utilization. Traditional systems lack an effective mechanism for reusing low-temperature water, resulting in energy waste. This rooftop solar heat pump system is equipped with a return water system electrically connected to the control center. This system includes a return water pipe, a return water solenoid valve, and a third temperature sensor. The return water pipe connects the hot water storage tank to the solar collector. When the third temperature sensor detects that the water source temperature in the return water pipe is lower than a preset value, the control center controls the return water solenoid valve to open, allowing the low-temperature water at the bottom of the hot water storage tank to flow back to the solar collector for reheating. Through temperature sensing and valve linkage, the secondary utilization of low-temperature water is achieved, improving the system's energy utilization efficiency and ensuring the stability of the hot water supply temperature.

[0012] The heat pump system also includes a hot water outlet pipe connected to the outlet of the hot water storage tank and a booster pump installed on the hot water outlet pipe. The booster pump includes a tank and a diaphragm installed inside the tank. The diaphragm divides the inner cavity of the tank into an air chamber and a water chamber. The bottom of the tank has an inlet and outlet connected to the water chamber, and the side of the tank has an air inlet connected to the air chamber. When hot water enters the water chamber from the inlet and outlet, the pressure in the water chamber increases, the diaphragm deforms towards the air chamber, compressing the gas in the air chamber. An external air inlet inflates the air chamber through the air inlet, causing the gas in the air chamber to expand and push the diaphragm to deform towards the water chamber, thereby pressurizing the hot water and achieving pressurized delivery of the hot water.

[0013] In the hot water supply of solar heat pump systems, insufficient water pressure often leads to poor hot water delivery, especially during peak water usage periods. Traditional booster equipment is complex in structure, consumes a lot of energy, and has unstable pressure regulation. This rooftop solar heat pump system is equipped with a booster pump on the hot water outlet pipe. The booster pump includes a tank and a diaphragm. The diaphragm divides the inner cavity of the tank into an air chamber and a water chamber. The bottom of the tank has an inlet and outlet that connect to the water chamber, and the side has an air inlet that connects to the air chamber. When hot water enters the water chamber and increases the pressure, the diaphragm deforms towards the air chamber, compressing gas. After the external air inlet is filled with air, the gas in the air chamber expands and pushes the diaphragm towards the water chamber to increase pressure. This achieves stable pressurized delivery of hot water, ensuring the stability of the water supply pressure, simplifying the booster structure, and improving the system's operating efficiency.

[0014] The auxiliary heat source mechanism includes a heating pump, a third inlet pipe, and a second outlet pipe. One end of the second outlet pipe is connected to the outlet of the heating pump, and the other end is connected to the inlet of the hot water storage tank. One end of the third inlet pipe is connected to the inlet of the heating pump, and the other end is connected to the outlet of the hot water storage tank. A circulation pump is installed on the third inlet pipe. The circulation pump is electrically connected to the control center and is used to drive the water flow to circulate between the heating pump and the hot water storage tank. When the auxiliary heat source needs to be started, the circulation pump is controlled to run and the heating pump is activated, so that the low-temperature water at the bottom of the hot water storage tank enters the heating pump through the third inlet pipe, is heated, and then returns to the top of the hot water storage tank through the second outlet pipe.

[0015] In the operation of a solar heat pump system, relying solely on the solar collector often results in insufficient sunlight, making it difficult to meet the required water temperature in the hot water storage tank. Traditional auxiliary heating methods suffer from low heating efficiency and poor water circulation, affecting the overall performance of the system. The auxiliary heat source mechanism of this rooftop solar heat pump system includes a heating pump, a third inlet pipe, and a second outlet pipe. One end of the second outlet pipe is connected to the outlet of the heating pump, and the other end is connected to the inlet of the hot water storage tank. One end of the third inlet pipe is connected to the inlet of the heating pump, and the other end is connected to the outlet of the hot water storage tank. A circulation pump electrically connected to the control center is installed on the third inlet pipe. When the auxiliary heat source needs to be started, the control center controls the circulation pump to run and activates the heating pump. This allows the low-temperature water at the bottom of the hot water storage tank to enter the heating pump through the third inlet pipe, be heated, and then return to the top of the hot water storage tank through the second outlet pipe, forming a highly efficient auxiliary heating cycle and improving the system's ability to guarantee the hot water temperature.

[0016] The pipeline includes a first pipe body, an insulation layer covering the outside of the first pipe body, and a protective layer covering the outside of the insulation layer. The insulation layer is made of rubber and plastic material, and the protective layer is made of aluminum plate.

[0017] In solar heat pump systems, pipes are a key component for hot water delivery, and their insulation performance and structural protection directly affect the system's energy efficiency and service life. Traditional pipes often suffer from high heat loss and rapid aging due to insufficient heat resistance of insulation materials and easy corrosion of the protective layer. The pipes in this rooftop solar heat pump system adopt a three-layer structural design, including an inner first pipe body, an insulation layer covering it, and an outermost protective layer. The insulation layer is made of rubber and plastic materials, which have excellent heat insulation performance and can effectively reduce heat loss. The protective layer is made of aluminum plate, which can resist external environmental corrosion and enhance the durability of the pipes. Through this structural design, the insulation effect and service life of the pipes are significantly improved, ensuring the stable operation of the system.

[0018] The heating pump includes a first housing and a heating unit disposed within the first housing. The side wall of the first housing is provided with a ventilation structure, and a fan assembly is provided above the first housing.

[0019] During the operation of the heat pump, a large amount of heat is generated inside the equipment due to continuous operation. If heat dissipation is not timely, it can easily lead to a decrease in unit efficiency or even overheating and damage. The heat dissipation structure of the traditional heat pump casing often has problems such as poor ventilation and low heat dissipation efficiency. The heat pump of this rooftop solar heat pump system has a first casing, in which the heating unit is installed. The side wall of the casing is designed with a ventilation structure, and a fan assembly is equipped on the top. The ventilation structure can realize the air circulation between the inside and outside of the casing, and the fan assembly can accelerate the air flow. The two work together to form an efficient heat dissipation channel, which can promptly dissipate the heat generated by the heating unit during operation, ensuring that the heat pump operates stably in a suitable temperature environment, effectively improving the working efficiency and service life of the heat pump.

[0020] The solar thermal collector mechanism also includes a bracket for installing the solar thermal collector. The bracket includes a support part, a first crossbar part disposed above the support part, and a second crossbar part disposed below the support part. The support part includes a first rod body and a second rod body connected to the first rod body. The first rod body and the second rod body together form a first included angle.

[0021] The bracket includes a support section, a first crossbar section above the support section, and a second crossbar section below the support section. The support section is formed by connecting the first and second rods, which form a first included angle. This structural design provides a stable support for the solar collector and optimizes the installation angle of the collector by adjusting the first included angle, allowing it to better receive sunlight. This significantly improves the solar thermal efficiency and the overall stability of the system, while also enhancing its adaptability to different installation environments.

[0022] The first and second crossbars are each provided with multiple sets of clamping members. The crossbar includes a first fixing part and a second fixing part integrally formed with the first fixing part. The second fixing part is perpendicular to the first fixing part. The clamping members include a third fixing part and a fourth fixing part integrally formed with the third fixing part. The third fixing part is perpendicular to the fourth fixing part. The first fixing part is provided with a first mounting hole and the third fixing part is provided with a second mounting hole. The free end of the solar collector is clamped by the second fixing part and the fourth fixing part. An external locking member passes through the first mounting hole and the second mounting hole to lock the clamping member, the crossbar, and the solar collector together.

[0023] The bracket of this rooftop solar heat pump system is equipped with multiple sets of clamping components on both the first and second horizontal bars. The horizontal bars consist of a first and second fixed part that are integrally formed and perpendicular to each other, while the clamping components consist of a third and fourth fixed part that are integrally formed and perpendicular to each other. The first fixed part has a first mounting hole, and the third fixed part has a second mounting hole. The free end of the solar collector is clamped by the second and fourth fixed parts, and then the three parts are locked together by an external locking component passing through the first and second mounting holes. This structural design not only achieves stable installation of the solar collector, but also allows for flexible adjustment of the collector angle by adjusting the clamping position, effectively improving heat collection efficiency and system stability, while also facilitating installation and maintenance.

[0024] The beneficial effects of this utility model are as follows: Through the coordinated operation of the solar thermal collector, auxiliary heat source, hot water storage tank, and control center, and by utilizing the linkage control of components such as temperature and water level sensors, solenoid valves, and circulating pumps, this utility model achieves intelligent regulation of the entire process of hot water production, storage, and transportation. Its beneficial effects are that it can efficiently utilize solar energy, ensure a stable supply of hot water through the auxiliary heat source, improve energy efficiency by enabling the secondary utilization of low-temperature water through the return water system, ensure stable water supply pressure with the help of booster pumps, and enhance the system's insulation, installation stability, and environmental adaptability through optimized pipe structure and support design. Overall, it improves the system's energy efficiency, stability, and reliability, and reduces energy waste and maintenance costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a cross-sectional view of the booster pump of this utility model;

[0027] Figure 3 This is a schematic diagram of the pipe structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the heating pump of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the bracket of this utility model;

[0030] Figure 6 This is a cross-sectional view of the bracket of this utility model.

[0031] The reference numerals in the figures include:

[0032] 1. Solar thermal collector mechanism; 2. Auxiliary heat source mechanism; 3. Hot water storage tank; 4. Solar collector; 5. First inlet pipe; 6. First outlet pipe; 7. First solenoid valve; 8. First temperature sensor; 9. First water level sensor; 11. Second inlet pipe; 12. Second solenoid valve; 13. Return pipe; 14. Return solenoid valve; 15. Third temperature sensor; 16. Hot water outlet pipe; 17. Booster pump; 18. Tank body; 19. Diaphragm component; 21. Air chamber; 22. Water chamber; 23. Inlet and outlet; 24. Air inlet; 25. Heating element. 26. Pump; 27. Third inlet pipe; 28. Second outlet pipe; 29. ​​Circulation pump; 30. First pipe body; 31. Insulation layer; 32. Protective layer; 33. First shell; 34. Heating unit; 35. Ventilation structure; 36. Fan assembly; 37. Bracket; 38. Support part; 39. First crossbar part; 41. Second crossbar part; 42. First rod body; 43. Second rod body; 44. Clamping part; 45. First fixing part; 46. Second fixing part; 47. Third fixing part; 48. Fourth fixing part; 49. First mounting hole; 51. Second mounting hole. Detailed Implementation

[0033] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0034] Please see Figures 1 to 6 As shown, this utility model discloses a rooftop solar heat pump system, including a solar collector 1, an auxiliary heat source 2, a hot water storage tank 3, and a control center. The solar collector 1, the auxiliary heat source 2, and the hot water storage tank 3 are all electrically connected to the control center. The solar collector 1 includes a solar collector 4, a first inlet pipe 5 connected to the inlet port of the solar collector 4, and a first outlet pipe 6 connected to the outlet port of the solar collector 4. The other end of the first outlet pipe 6 is connected to the hot water storage tank 3. External cold water enters the solar collector 4 through the first inlet pipe 5, and the water discharged from the solar collector 4 flows into the hot water storage tank 3. The auxiliary heat source 2 provides auxiliary heating to the water in the hot water storage tank 3 and then returns it to the hot water storage tank 3.

[0035] This rooftop solar heat pump system consists of a solar collector 1, an auxiliary heat source 2, a hot water storage tank 3, and a control center. The solar collector 1 heats cold water using solar collectors 4 and sends it to the hot water storage tank 3 through the first outlet pipe 6. External cold water enters the collector through the first inlet pipe 5, driving the flow of hot water. The auxiliary heat source 2 provides auxiliary heating to the water in the hot water storage tank 3 before returning it to the source. The control center electrically connects all the components to achieve overall coordinated control, effectively improving the system's stability and energy utilization efficiency, and overcoming the limitations of a single solar energy system.

[0036] The first inlet pipe 5 is equipped with a first solenoid valve 7 electrically connected to the control center, and the first outlet pipe 6 is equipped with a first temperature sensor 8 electrically connected to the control center. When the first temperature sensor 8 senses that the water source temperature of the first outlet pipe 6 is greater than a preset value, the control center controls the first solenoid valve 7 to open, and external cold water enters the solar collector 4 through the first inlet pipe 5; when the first temperature sensor 8 senses that the water source temperature of the first outlet pipe 6 is lower than the preset value, the control center controls the first solenoid valve 7 to close.

[0037] The first inlet pipe 5 of this rooftop solar heat pump system is equipped with a first solenoid valve 7 electrically connected to the control center, and the first outlet pipe 6 is equipped with a first temperature sensor 8 electrically connected to the control center. When the first temperature sensor 8 senses that the water temperature in the first outlet pipe 6 is greater than a preset value, the control center controls the first solenoid valve 7 to open, and external cold water enters the solar collector 4 through the first inlet pipe 5, pushing hot water into the hot water storage tank 3. When the first temperature sensor 8 senses that the water temperature in the first outlet pipe 6 is lower than the preset value, the control center controls the first solenoid valve 7 to close. Through the linkage control of temperature and valve, the precise regulation of hot water delivery is achieved, improving the efficiency and stability of the system operation.

[0038] The hot water storage tank 3 is equipped with a first water level sensor 9 that is electrically connected to the control center. The hot water storage tank 3 is also equipped with a second water inlet pipe 11 that is connected to external cold water. The second water inlet pipe 11 is equipped with a second solenoid valve 12 that is connected to the control center. When the first water level sensor 9 detects that the water level inside the hot water storage tank 3 is greater than a preset value, the control center controls the first solenoid valve 7 of the first water inlet pipe 5 and / or the second solenoid valve 12 of the second water inlet pipe 11 to close.

[0039] The hot water storage tank 3 of this rooftop solar heat pump system is equipped with a first water level sensor 9 electrically connected to the control center. It is also connected to external cold water through a second water inlet pipe 11, which is equipped with a second solenoid valve 12 connected to the control center. When the first water level sensor 9 detects that the water level inside the hot water storage tank 3 is higher than the preset value, the control center will control the first solenoid valve 7 of the first water inlet pipe 5 and / or the second solenoid valve 12 of the second water inlet pipe 11 to close according to the actual situation. This achieves dual protection and flexible control of the water level, effectively avoiding the risks caused by excessively high water levels and improving the accuracy and reliability of the system's water replenishment control.

[0040] The heat pump system also includes a return water system electrically connected to the control center. The return water system includes a return water pipe 13, a return water solenoid valve 14 installed on the return water pipe 13, and a third temperature sensor 15 installed on the return water pipe 13 and electrically connected to the control center. One end of the return water pipe 13 is connected to the hot water storage tank 3, and the other end is connected to the solar collector 4. When the third temperature sensor 15 detects that the water source temperature of the return water pipe 13 is lower than a preset value, the control center controls the return water solenoid valve 14 to open so that the low-temperature water at the bottom of the hot water storage tank 3 flows back to the solar collector 4 for heating.

[0041] Low-temperature water tends to accumulate at the bottom of the hot water storage tank 3, leading to reduced hot water utilization. Traditional systems lack an effective mechanism for reusing low-temperature water, resulting in energy waste. This rooftop solar heat pump system is equipped with a return water system electrically connected to the control center. This system includes a return water pipe 13, a return water solenoid valve 14, and a third temperature sensor 15. The return water pipe 13 connects the hot water storage tank 3 to the solar collector 4. When the third temperature sensor 15 detects that the water source temperature in the return water pipe 13 is lower than a preset value, the control center controls the return water solenoid valve 14 to open, allowing the low-temperature water at the bottom of the hot water storage tank 3 to flow back to the solar collector 4 for reheating. Through temperature sensing and valve linkage, the secondary utilization of low-temperature water is realized, improving the system's energy utilization efficiency and ensuring the stability of the hot water supply temperature.

[0042] The heat pump system also includes a hot water outlet pipe 16 connected to the outlet of the hot water storage tank 3, and a booster pump 17 installed on the hot water outlet pipe 16. The booster pump 17 includes a tank 18 and a diaphragm 19 installed inside the tank 18. The diaphragm 19 divides the inner cavity of the tank 18 into an air chamber 21 and a water chamber 22. The bottom of the tank 18 is provided with an inlet / outlet 23 connected to the water chamber 22, and the side of the tank 18 is provided with an air inlet 24 connected to the air chamber 21. When hot water enters the water chamber 22 from the inlet / outlet 23, the pressure in the water chamber 22 increases, and the diaphragm 19 deforms towards the air chamber 21, compressing the gas in the air chamber 21. An external air inflation component inflates the air chamber 21 through the air inlet 24. The gas in the air chamber 21 expands, pushing the diaphragm 19 to deform towards the water chamber 22, thereby pressurizing the hot water and achieving pressurized delivery of the hot water.

[0043] In the hot water supply of solar heat pump systems, insufficient water pressure often leads to poor hot water delivery, especially during peak water usage periods. Traditional booster equipment is complex in structure, consumes a lot of energy, and has unstable pressure regulation. This rooftop solar heat pump system has a booster pump 17 installed on the hot water outlet pipe 16. The booster pump 17 includes a tank 18 and a diaphragm 19. The diaphragm 19 divides the inner cavity of the tank 18 into an air chamber 21 and a water chamber 22. The bottom of the tank 18 has an inlet and outlet 23 that communicate with the water chamber 22, and the side has an air inlet 24 that communicates with the air chamber 21. When hot water enters the water chamber 22 and increases the pressure, the diaphragm 19 deforms and compresses gas into the air chamber 21. After the external air inlet is filled with air through the air inlet 24, the gas in the air chamber 21 expands and pushes the diaphragm 19 to deform and pressurize the water chamber 22, thereby achieving stable pressurized delivery of hot water. This not only ensures the stability of the water supply pressure but also simplifies the booster structure and improves the system's operating efficiency.

[0044] The auxiliary heat source mechanism 2 includes a heating pump 25, a third inlet pipe 26, and a second outlet pipe 27. One end of the second outlet pipe 27 is connected to the outlet of the heating pump 25, and the other end is connected to the inlet of the hot water storage tank 3. One end of the third inlet pipe 26 is connected to the inlet of the heating pump 25, and the other end is connected to the outlet of the hot water storage tank 3. A circulation pump 28 is provided on the third inlet pipe 26. The circulation pump 28 is electrically connected to the control center and is used to drive the water flow to circulate between the heating pump 25 and the hot water storage tank 3. When the auxiliary heat source needs to be started, the circulation pump 28 is controlled to run and the heating pump 25 is activated, so that the low temperature water at the bottom of the hot water storage tank 3 enters the heating pump 25 through the third inlet pipe 26, is heated, and then returns to the upper part of the hot water storage tank 3 through the second outlet pipe 27.

[0045] In the operation of a solar heat pump system, relying solely on the solar collector 1 often results in insufficient sunlight, causing the water temperature in the hot water storage tank 3 to be insufficient to meet the demand. Traditional auxiliary heating methods suffer from low heating efficiency and poor water circulation, affecting the overall performance of the system. The auxiliary heat source mechanism 2 of this rooftop solar heat pump system includes a heating pump 25, a third inlet pipe 26, and a second outlet pipe 27. One end of the second outlet pipe 27 is connected to the outlet of the heating pump 25, and the other end is connected to the inlet of the hot water storage tank 3. One end of the third inlet pipe 26 is connected to the inlet of the heating pump 25, and the other end is connected to the outlet of the hot water storage tank 3. A circulation pump 28 electrically connected to the control center is installed on the third inlet pipe 26. When the auxiliary heat source needs to be started, the control center controls the circulation pump 28 to run and activates the heating pump 25. This allows the low-temperature water at the bottom of the hot water storage tank 3 to enter the heating pump 25 through the third inlet pipe 26, be heated, and then return to the upper part of the hot water storage tank 3 through the second outlet pipe 27, forming an efficient auxiliary heating cycle and improving the system's ability to guarantee the hot water temperature.

[0046] The pipeline includes a first pipe body 29, an insulation layer 31 covering the outside of the first pipe body 29, and a protective layer 32 covering the outside of the insulation layer 31. The insulation layer 31 is made of rubber and plastic material, and the protective layer 32 is made of aluminum plate.

[0047] In a solar heat pump system, the pipes are a key component for hot water delivery. Their insulation performance and structural protection directly affect the system's energy efficiency and service life. Traditional pipes often suffer from high heat loss and rapid aging due to insufficient heat resistance of the insulation material and easy corrosion of the protective layer 32. The pipes in this rooftop solar heat pump system adopt a three-layer structure design, including the inner first pipe body 29, the insulation layer 31 covering it, and the outermost protective layer 32. The insulation layer 31 is made of rubber and plastic material, which has excellent heat insulation performance and can effectively reduce heat loss. The protective layer 32 is made of aluminum plate, which can resist external environmental corrosion and enhance the durability of the pipes. Through this structural design, the insulation effect and service life of the pipes are significantly improved, ensuring the stable operation of the system.

[0048] The heating pump 25 includes a first housing 33 and a heating unit 34 disposed within the first housing 33. The first housing 33 has a ventilation structure 35 on its side wall and a fan assembly 36 on its top. The heating unit 34 includes a compressor, a condenser, an evaporator, and an expansion valve. These components are connected sequentially via pipes to form a closed loop filled with refrigerant. The compressor compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant, which is then delivered to the condenser. In the condenser, the high-temperature, high-pressure gaseous refrigerant exchanges heat with the flowing water, releasing heat to raise the water temperature, while condensing itself into liquid refrigerant. The liquid refrigerant, after being throttled and depressurized by the expansion valve, enters the evaporator, where it absorbs external heat and evaporates into gaseous refrigerant, returning to the compressor to complete the cycle. The heated water flows back to the hot water storage tank 3 via the second outlet pipe 27.

[0049] During the operation of the heat pump 25, a large amount of heat is generated inside the equipment due to continuous operation. If the heat dissipation is not timely, it can easily lead to a decrease in unit efficiency or even overheating and damage. The heat dissipation structure of the traditional heat pump casing often has problems such as poor ventilation and low heat dissipation efficiency. The heat pump 25 of this rooftop solar heat pump system is equipped with a first casing 33, in which the heating unit 34 is installed. The side wall of the casing is designed with a ventilation structure 35, and a fan assembly 36 is equipped on the top. The ventilation structure 35 can realize the air circulation inside and outside the casing, and the fan assembly 36 can accelerate the air flow. The two work together to form an efficient heat dissipation channel, which can promptly dissipate the heat generated by the heating unit 34 during operation, ensuring that the heat pump 25 operates stably in a suitable temperature environment, effectively improving the working efficiency and service life of the heat pump 25.

[0050] The solar thermal collector 1 also includes a bracket 37 for installing the solar thermal collector 4. The bracket 37 includes a support portion 38, a first crossbar portion 39 disposed above the support portion 38, and a second crossbar portion 41 disposed below the support portion 38. The support portion 38 includes a first rod 42 and a second rod 43 connected to the first rod 42. The first rod 42 and the second rod 43 together form a first included angle.

[0051] The bracket 37 includes a support part 38, a first crossbar part 39 located above the support part 38, and a second crossbar part 41 located below the support part 38. The support part 38 is formed by connecting the first rod body 42 and the second rod body 43, which form a first included angle. Through this structural design, it not only provides a stable support for the solar collector 4, but also optimizes the installation angle of the collector by adjusting the first included angle, so that it can better receive sunlight, significantly improving the solar heat collection efficiency and the overall stability of the system, while enhancing the adaptability to different installation environments.

[0052] The first crossbar portion 39 and the second crossbar portion 41 are each provided with multiple sets of clamping members 44. The crossbar portion includes a first fixing portion 45 and a second fixing portion 46 integrally formed with the first fixing portion 45. The second fixing portion 46 is perpendicular to the first fixing portion 45. The clamping member 44 includes a third fixing portion 47 and a fourth fixing portion 48 integrally formed with the third fixing portion 47. The third fixing portion 47 is perpendicular to the fourth fixing portion 48. The first fixing portion 45 is provided with a first mounting hole 49 and the third fixing portion 47 is provided with a second mounting hole 51. The free end of the solar collector 4 is clamped by the second fixing portion 46 and the fourth fixing portion 48. An external locking member passes through the first mounting hole 49 and the second mounting hole 51 to lock the clamping member 44, the crossbar portion and the solar collector 4 together.

[0053] The bracket 37 of this rooftop solar heat pump system is equipped with multiple sets of clamping parts 44 on both the first crossbar section 39 and the second crossbar section 41. The crossbar section is composed of a first fixing part 45 and a second fixing part 46 that are integrally formed and perpendicular to each other. The clamping parts 44 are composed of a third fixing part 47 and a fourth fixing part 48 that are integrally formed and perpendicular to each other. The first fixing part 45 is provided with a first mounting hole 49 and the third fixing part 47 is provided with a second mounting hole 51. The free end of the solar collector 4 is clamped by the second fixing part 46 and the fourth fixing part 48, and then the three are locked by an external locking part passing through the first mounting hole 49 and the second mounting hole 51. This structural design not only achieves the stable installation of the solar collector 4, but also allows for flexible adjustment of the collector angle by adjusting the clamping position, effectively improving the heat collection efficiency and system stability, while facilitating installation and maintenance.

[0054] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A rooftop solar heat pump system, characterized in that: It includes a solar collector (1), an auxiliary heat source (2), a hot water storage tank (3), and a control center; the solar collector (1), the auxiliary heat source (2), and the hot water storage tank (3) are all electrically connected to the control center. The solar collector (1) includes a solar collector (4), a first inlet pipe (5) connected to the inlet port of the solar collector (4), and a first outlet pipe (6) connected to the outlet port of the solar collector (4). The other end of the first outlet pipe (6) is connected to the hot water storage tank (3). External cold water enters the solar collector (4) through the first inlet pipe (5). The water discharged from the solar collector (4) flows into the hot water storage tank (3). The auxiliary heat source (2) heats the water in the hot water storage tank (3) and then returns it to the hot water storage tank (3).

2. The rooftop solar heat pump system according to claim 1, characterized in that: The first water inlet pipe (5) is equipped with a first solenoid valve (7) electrically connected to the control center, and the first water outlet pipe (6) is equipped with a first temperature sensor (8) electrically connected to the control center. When the first temperature sensor (8) senses that the water source temperature of the first water outlet pipe (6) is greater than the preset value, the control center controls the first solenoid valve (7) to open, and external cold water enters the solar collector (4) through the first water inlet pipe (5). When the first temperature sensor (8) senses that the water source temperature of the first water outlet pipe (6) is lower than the preset value, the control center controls the first solenoid valve (7) to close.

3. A rooftop solar heat pump system according to claim 2, characterized in that: The hot water storage tank (3) is equipped with a first water level sensor (9) electrically connected to the control center. The hot water storage tank (3) is also equipped with a second water inlet pipe (11) connected to external cold water. The second water inlet pipe (11) is equipped with a second solenoid valve (12) connected to the control center. When the first water level sensor (9) detects that the water level inside the hot water storage tank (3) is greater than the preset value, the control center controls the first solenoid valve (7) of the first water inlet pipe (5) and / or the second solenoid valve (12) of the second water inlet pipe (11) to close.

4. A rooftop solar heat pump system according to claim 1, characterized in that: The heat pump system also includes a return water system electrically connected to the control center. The return water system includes a return water pipe (13), a return water solenoid valve (14) installed on the return water pipe (13), and a third temperature sensor (15) installed on the return water pipe (13) and electrically connected to the control center. One end of the return water pipe (13) is connected to the hot water storage tank (3), and the other end is connected to the solar collector (4). When the third temperature sensor (15) detects that the water source temperature of the return water pipe (13) is lower than the preset value, the control center controls the return water solenoid valve (14) to open so that the low temperature water at the bottom of the hot water storage tank (3) flows back to the solar collector (4) for heating.

5. A rooftop solar heat pump system according to claim 1, characterized in that: The heat pump system also includes a hot water outlet pipe (16) connected to the outlet of the hot water storage tank (3) and a booster pump (17) installed on the hot water outlet pipe (16); the booster pump (17) includes a tank (18) and a diaphragm (19) installed inside the tank (18). The diaphragm (19) divides the inner cavity of the tank (18) into an air chamber (21) and a water chamber (22). The bottom of the tank (18) is provided with an inlet and outlet (23) connected to the water chamber (22). 8) An air inlet (24) is provided on the side and is connected to the air chamber (21); when hot water enters the water chamber (22) from the inlet / outlet (23), the pressure in the water chamber (22) increases, the diaphragm (19) deforms toward the air chamber (21) and compresses the gas in the air chamber (21). The external air inlet component inflates the air chamber (21) through the air inlet (24). The gas in the air chamber (21) expands and pushes the diaphragm (19) to deform toward the water chamber (22) to pressurize the hot water and realize the pressurized delivery of hot water.

6. A rooftop solar heat pump system according to claim 1, characterized in that: The auxiliary heat source mechanism (2) includes a heating pump (25), a third inlet pipe (26), and a second outlet pipe (27). One end of the second outlet pipe (27) is connected to the outlet of the heating pump (25), and the other end is connected to the inlet of the hot water storage tank (3). One end of the third inlet pipe (26) is connected to the inlet of the heating pump (25), and the other end is connected to the outlet of the hot water storage tank (3). A circulation pump (28) is provided on the third inlet pipe (26). The circulation pump (28) is electrically connected to the control center and is used to drive the water flow to circulate between the heating pump (25) and the hot water storage tank (3). When the auxiliary heat source needs to be started, the circulation pump (28) is controlled to run and the heating pump (25) is activated, so that the low temperature water at the bottom of the hot water storage tank (3) enters the heating pump (25) through the third inlet pipe (26) and is heated, and then returns to the upper part of the hot water storage tank (3) through the second outlet pipe (27).

7. A rooftop solar heat pump system according to claim 1, characterized in that: The pipeline includes a first pipe body (29), an insulation layer (31) covering the outside of the first pipe body (29), and a protective layer (32) covering the outside of the insulation layer (31).

8. A rooftop solar heat pump system according to claim 7, characterized in that: The heating pump (25) includes a first housing (33) and a heating unit (34) disposed in the first housing (33). The side wall of the first housing (33) is provided with a ventilation structure (35), and a fan assembly (36) is provided above the first housing (33).

9. A rooftop solar heat pump system according to claim 1, characterized in that: The solar thermal collector (1) also includes a bracket (37) for installing the solar thermal collector (4). The bracket (37) includes a support part (38), a first crossbar part (39) disposed above the support part (38), and a second crossbar part (41) disposed below the support part (38). The support part (38) includes a first rod body (42) and a second rod body (43) connected to the first rod body (42). The first rod body (42) and the second rod body (43) together form a first included angle.

10. A rooftop solar heat pump system according to claim 9, characterized in that: Multiple sets of clamping members (44) are provided on the first crossbar (39) and the second crossbar (41). The crossbar includes a first fixing part (45) and a second fixing part (46) integrally formed with the first fixing part (45). The second fixing part (46) is perpendicular to the first fixing part (45). The clamping member (44) includes a third fixing part (47) and a fourth fixing part (48) integrally formed with the third fixing part (47). The third fixing part (47) is perpendicular to the fourth fixing part (48). The first fixing part (45) is provided with a first mounting hole (49), and the third fixing part (47) is provided with a second mounting hole (51). The free end of the solar collector (4) is clamped by the second fixing part (46) and the fourth fixing part (48). An external locking member passes through the first mounting hole (49) and the second mounting hole (51) to lock the clamping member (44), the crossbar, and the solar collector (4).

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