Integrated double-water-tank heat pump equipment

Abstract

The invention relates to the technical field of heat pump equipment, in particular to integrated double-water-tank heat pump equipment which comprises a machine shell, a water tank, a water tank and a heat pump, the heat pump mechanism is arranged on the top surface of the mounting plate and comprises a first-stage heat exchange assembly and a second-stage heat exchange assembly, the output end of the first-stage heat exchange assembly is connected with the input end of the second-stage heat exchange assembly, the output end of the second-stage heat exchange assembly is connected with the input end of the first-stage heat exchange assembly, and the first-stage heat exchange assembly takes a refrigerant as a heat exchange medium; the second-stage heat exchange assembly takes intermediate water as a heat exchange medium, and the intermediate water absorbs heat in a refrigerant; the heating mechanism is arranged at the bottom of the mounting plate, and the input end of the heating mechanism is connected with one connecting end of the water outlet end of the second-stage heat exchange assembly; and the hot water mechanism is arranged at the bottom of the heating mechanism, the input end of the hot water mechanism is connected with the other connecting end of the water outlet end of the second-stage heat exchange assembly, and the heat stability of the heat pump equipment during heat exchange can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat pump equipment, and in particular to an integrated double-water tank heat pump equipment. Background Art

[0002] With the popularization of energy-saving and environmental protection concepts, heat pump technology has gradually become an important solution for home heating and domestic hot water supply due to its high efficiency and energy-saving characteristics. However, the existing home heat pump system still has significant defects in practical applications: the traditional solution usually requires two independent devices, the heating circulation system and the domestic hot water system, which results in a large equipment footprint, high installation costs and superimposed energy consumption, making it difficult to meet the needs of modern families for space intensiveness and energy efficiency optimization.

[0003] In order to improve the above problems, although there are devices integrating two systems in the prior art, their core heat exchange structures mostly adopt a single-stage heat exchange system design. Such systems directly exchange heat with terminal water through a single refrigerant circulation, and the thermal stability of single-stage heat exchange is poor. When the heating and domestic hot water demand fluctuate (such as a sudden increase in shower water consumption), the system is prone to drastic fluctuations in domestic hot water temperature due to heat load imbalance, seriously affecting the user experience. In addition, this design of direct contact between the refrigerant and the terminal water has a leakage risk. The refrigerant seeps into the domestic hot water circuit, which will not only cause water pollution, but also may cause safety hazards. Summary of the invention

[0004] In order to improve the thermal stability of the heat pump equipment during heat exchange, the present application provides an integrated dual-water tank heat pump equipment, which can reduce the direct contact between the refrigerant and the terminal water.

[0005] The present application provides an integrated dual-tank heat pump device, which adopts the following technical solution: An integrated double-tank heat pump device, comprising: Casing: A mounting plate is installed on the top of the inner wall of the casing; Heat pump mechanism: The heat pump mechanism is arranged on the top surface of the mounting plate, and includes a primary heat exchange component and a secondary heat exchange component. The output end of the primary heat exchange component is connected to the input end of the secondary heat exchange component, and the output end of the secondary heat exchange component is connected to the input end of the primary heat exchange component. The primary heat exchange component uses the refrigerant as the heat exchange medium, and the secondary heat exchange component uses the intermediate water as the heat exchange medium, and the intermediate water absorbs the heat in the refrigerant. Heating mechanism: The heating mechanism is arranged at the bottom of the mounting plate, and the input end of the heating mechanism is connected to a connection end of the water outlet end of the secondary heat exchange component; Hot water mechanism: The hot water mechanism is arranged at the bottom of the heating mechanism, and the input end of the hot water mechanism is connected to another connection end of the water outlet end of the secondary heat exchange component.

[0006] By adopting the above technical solution, the present application adopts a two-stage heat exchange design to achieve step-by-step heat transfer through the intermediate water circulation. The first stage of heat exchange is the heat exchange between the refrigerant circulation and the intermediate water circulation, and the refrigerant releases heat to the intermediate water circuit through the heat exchanger; the second stage of heat exchange is the heat exchange between the intermediate water circulation and the terminal water, and the intermediate water transfers the heat to the terminal water in the heating water tank or the domestic water tank. The intermediate water circulation is used as a heat transfer medium to achieve physical isolation between the refrigerant and the terminal water. In addition, the buffering effect of the intermediate water improves the thermal stability of the system, and can still maintain uniform heating when the load fluctuates greatly. The energy utilization efficiency is optimized through graded heat transfer, the refrigerant circulation load is reduced, and the service life of the equipment is extended.

[0007] Preferably, the first-stage heat exchange component includes a compressor and an evaporator with a fan, and the second-stage heat exchange component includes a heat exchanger, the evaporator output end is connected to the compressor input end, the compressor output end is connected to the heat exchanger input end, and the heat exchanger output end is connected to the evaporator input end.

[0008] By adopting the above technical solution, external air enters the evaporator through the fan input port, and the refrigerant in the evaporator absorbs heat from the air and evaporates into refrigerant gas. After that, the refrigerant gas enters the compressor through the output end of the evaporator. The compressor compresses the refrigerant gas into high-temperature and high-pressure refrigerant gas. The high-temperature refrigerant gas enters the heat exchanger from the output end of the compressor, and the refrigerant gas exchanges heat with the intermediate water in the heat exchanger. The refrigerant gas that has absorbed heat enters the evaporator through the output end of the heat exchanger, thereby completing the first-stage heat exchange and realizing the circulation of the refrigerant gas.

[0009] Preferably, the heating mechanism includes a heating water tank and a first heat exchange coil, the first heat exchange coil is arranged in the heating water tank, the first heat exchange coil input end is connected to the heat exchanger water outlet end, and the first heat exchange coil output end is connected to the heat exchanger water inlet end.

[0010] By adopting the above technical scheme, after the intermediate water in the heat exchanger absorbs the heat of the refrigerant, the intermediate water enters the first heat exchange coil through the water outlet of the heat exchanger, and the terminal water in the heating water tank absorbs the heat of the intermediate water in the first heat exchange coil to complete the secondary heat exchange, thereby realizing the heating of the terminal water in the heating water tank. The terminal water provides heat for the heating equipment to realize heating, and the intermediate water that completes the heat exchange enters the heat exchanger from the output end of the first heat exchange coil to realize the circulation of the intermediate water.

[0011] Preferably, the output end of the first heat exchange coil is connected to a water collection pipe, and the other end of the water collection pipe is connected to the water outlet end of the heat exchanger.

[0012] By adopting the above technical solution, the intermediate water that has completed the heat exchange enters the water collecting pipe from the output end of the first heat exchange coil, and the intermediate water enters the heat exchanger through the water collecting pipe.

[0013] Preferably, the secondary heat exchange component includes an expansion water tank, which is mounted on the top surface of the mounting plate, with a flow pipe connected to the bottom end of the expansion water tank, and the other end of the flow pipe is inserted into the outer wall of the water collection pipe.

[0014] By adopting the above technical solution, the temperature of the intermediate water is relatively high, and the intermediate water expands due to heat. Under the action of the expansion water tank, the expansion water tank provides additional space to store excess liquid, so that the expansion water tank can stabilize the pressure of the intermediate water in flow, and reduce the situation in which the pressure of the intermediate water suddenly rises during the flow, causing pipe rupture or sealing failure.

[0015] Preferably, an exhaust port is provided on the outer wall of the casing, an exhaust pipe is provided inside the casing, one end of the exhaust pipe is inserted into the exhaust port, and the other end of the exhaust pipe is inserted into the outer wall of the water collecting pipe.

[0016] By adopting the above technical solution, when the equipment is in a closed state, there is excess gas in the pipeline. Under the action of the exhaust pipe and the branch pipe, the air can be discharged in time to reduce the damage caused by high pressure in the pipeline.

[0017] Preferably, an electrical box is installed on the top surface of the mounting plate, the electrical box is arranged opposite to the evaporator, the compressor is installed in the middle of the top surface of the mounting plate, the heat exchanger is located on the outside of the compressor, the heat exchanger is located between the compressor and the evaporator, the expansion tank and the heat exchanger are arranged opposite to each other, and a circulation space is formed between the expansion water tank, the electrical box, the compressor, the heat exchanger and the evaporator, an air inlet is opened on the top of the casing, the air inlet corresponds to the input end of the fan, and an air outlet is opened on the top surface of the casing, and the air outlet is located on the side of the evaporator away from the fan.

[0018] By adopting the above technical solution, external air enters the fan through the air inlet, the evaporator absorbs heat in the air, and the cold air that has absorbed the heat is discharged through the evaporator at one end away from the fan, and the discharged cold air enters the circulation space. The cold air entering the circulation space takes away the heat from the compressor, electrical box, heat exchanger and evaporator surface, thereby playing a role in heat dissipation for the compressor, heat exchanger and electrical box. The air that absorbs the heat flows to the top of the circulation space and is finally discharged from the air outlet.

[0019] Preferably, the air outlet is located outside the circulation space, and the air outlet is located at an end of the casing away from the heat exchanger.

[0020] By adopting the above-mentioned technical scheme, the enclosed circulation space can guide the flow direction of cold air. The air outlet is located outside the circulation space. Compared with the situation where the air outlet is directly facing the top of the circulation space or is located at one end of the casing close to the pipe network component, the present application can increase the contact range between the cold air and the compressor, heat exchanger and electrical box, thereby better dissipating heat.

[0021] Preferably, the heating mechanism also includes a heating water pump, which is installed on the top surface of the mounting plate, located outside the expansion water tank, located on one side of the evaporator, and located at the bottom of the air outlet. The heating water pump is used to transport external water into the heating water tank.

[0022] By adopting the above technical solution, the heating water pump is located on one side of the evaporator, part of the cold air discharged from the evaporator enters the circulation space, and the other part of the cold air discharged from the evaporator blows toward the heating water pump. After the cold air takes away the heat on the surface of the heating water pump, it is discharged from the air outlet.

[0023] Preferably, an electric heating pipe is provided in the heating water tank.

[0024] By adopting the above technical scheme, the electric heating pipe is used to heat the water inside the heating water tank. When heating is needed, the electric heating pipe is started first. The electric heating pipe serves as the main heating source and heats the water in the heating water tank to a corresponding temperature. When the heating capacity of the electric heating pipe is insufficient, the heat pump mechanism is started again. The heat pump mechanism serves as the second heating source. The heat provided by the heat pump mechanism assists the electric heating pipe to heat the water in the heating water tank.

[0025] This heat pump equipment adopts the coordinated operation mode of electric heating pipes and heat pumps in heating mode, taking into account both high efficiency and stability. As the main heat source, the electric heating pipe can start quickly and directly provide heat to ensure continuous operation in extremely low temperatures or heat pump failures; as an auxiliary heat source, the heat pump plays a high energy efficiency advantage under normal working conditions and reduces overall energy consumption. By intelligently controlling the operating ratio of the dual heat sources, it not only avoids the problem of heat pump efficiency attenuation in low temperature environments, but also balances the needs of rapid response and energy saving. The system combines energy utilization optimization, strong operating stability and full climate adaptability to achieve the dual goals of efficient energy saving and reliable heating.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. This application adopts a two-stage heat exchange design to achieve step-by-step heat transfer through an intermediate water cycle. The first stage of heat exchange is the heat exchange between the refrigerant cycle and the intermediate water cycle. The refrigerant releases heat to the intermediate water circuit through the heat exchanger; the second stage of heat exchange is the heat exchange between the intermediate water cycle and the terminal water. The intermediate water transfers heat to the terminal water in the heating water tank or the domestic water tank. The intermediate water cycle is used as a heat transfer medium to achieve physical isolation between the refrigerant and the terminal water. In addition, the buffering effect of the intermediate water improves the thermal stability of the system, and can still maintain uniform heating when the load fluctuates greatly. The energy utilization efficiency is optimized through graded heat transfer, the refrigerant circulation load is reduced, and the service life of the equipment is extended.

[0027] 2. External air enters the fan through the air inlet, and the evaporator absorbs heat from the air. The cold air that has absorbed heat is discharged through the evaporator at the end away from the fan, and the discharged cold air enters the circulation space. The cold air entering the circulation space takes away the heat from the compressor, electrical box, heat exchanger and evaporator surface, thereby cooling the compressor, heat exchanger and electrical box. The air that absorbs heat flows to the top of the circulation space and is finally discharged from the air outlet.

[0028] 3. When heating is needed, first start the electric heating pipe. The electric heating pipe serves as the main heating source and heats the water in the heating water tank to the corresponding temperature. When the heating capacity of the electric heating pipe is insufficient, start the heat pump mechanism as the second heating source. The heat provided by the heat pump mechanism assists the electric heating pipe to heat the water in the heating water tank.

[0029] This heat pump equipment adopts the coordinated operation mode of electric heating pipes and heat pumps in heating mode, taking into account both high efficiency and stability. As the main heat source, the electric heating pipe can start quickly and directly provide heat to ensure continuous operation in extremely low temperatures or heat pump failures; as an auxiliary heat source, the heat pump plays a high energy efficiency advantage under normal working conditions and reduces overall energy consumption. By intelligently controlling the operating ratio of the dual heat sources, it not only avoids the problem of heat pump efficiency attenuation in low temperature environments, but also balances the needs of rapid response and energy saving. The system combines energy utilization optimization, strong operating stability and full climate adaptability to achieve the dual goals of efficient energy saving and reliable heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the overall structure inside the embodiment of the present application.

[0032] Figure 3 yes Figure 2 Magnified view of A in .

[0033] Figure 4 It is a structural schematic diagram of the heat pump mechanism in the embodiment of the present application.

[0034] Figure 5 It is a structural schematic diagram of the heat pump mechanism from another perspective in the embodiment of the present application.

[0035] Figure 6 It is a schematic diagram of the internal structure of the hot water tank according to an embodiment of the present application.

[0036] Explanation of the reference numerals: 1. housing; 11. mounting plate; 12. air inlet; 13. air outlet; 14. heating water inlet; 15. heating water outlet; 16. hot water inlet; 17. hot water outlet; 18. circulation space; 19. exhaust port; 2. heat pump mechanism; 21. compressor; 22. evaporator; 221. fan; 231. outflow pipe; 232. delivery pipe; 233. input pipe; 234. connecting pipe; 24. four-way valve; 25. heat exchanger; 251. output pipe; 252. electric three-way valve; 253. heating pipe; 254, hot water pipe; 255, water collection pipe; 256, circulating water pump; 257, return pipe; 258, exhaust pipe; 259, branch pipe; 26, electrical box; 3, heating mechanism; 31, heating water tank; 32, heating water pump; 321, water inlet pipe; 322, water supply pipe; 4, hot water mechanism; 41, hot water tank; 42, second heat exchange coil; 43, water intake pipe; 44, hot water outlet pipe; 45, electronic magnesium rod; 46, electric heating pipe; 5, expansion tank; 51, circulation pipe; 61, high pressure switch; 62, low pressure switch. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-6 This application is described in further detail.

[0038] The embodiment of the present application discloses an integrated dual-water tank heat pump device.

[0039] Reference Figure 1 and Figure 2 An integrated double-water-tank heat pump device comprises a casing 1, a mounting plate 11 is fixed in the casing 1, the mounting plate 11 is arranged horizontally, the mounting plate 11 divides the inside of the casing 1 into an installation cavity and a placement cavity, the installation cavity is located at the top of the placement cavity, a heat pump mechanism 2 is arranged at the top of the casing 1, the heat pump mechanism 2 is located in the installation cavity, a heating mechanism 3 and a hot water mechanism 4 are arranged at the bottom of the casing 1, the heating mechanism 3 and the hot water mechanism 4 are located in the placement cavity, the heating mechanism 3 is located at the top of the hot water mechanism 4, the output end of the heat pump mechanism 2 is respectively connected with the input end of the heating mechanism 3 and the input end of the hot water mechanism 4, the heat pump mechanism 2 transfers heat to the heating mechanism 3 or the hot water mechanism 4, the heat output by the heating mechanism 3 is used for heating, and the hot water output by the hot water mechanism 4 is used for daily hot water supply.

[0040] Reference Figure 2 and Figure 3 The heat pump mechanism 2 includes a primary heat exchange component, which includes a compressor 21, an evaporator 22 with a fan 221, and a matching pipe network component. The compressor 21 is installed in the middle of the top surface of the mounting plate 11, and the evaporator 22 is installed at one end of the top surface of the mounting plate 11. The evaporator 22 is located on one side of the compressor 21. The fan 221 is installed on the side of the evaporator 22 away from the compressor 21, and the output end of the fan 221 is aligned with the top of the casing 1.

[0041] The pipe network component includes an inlet pipe, an outflow pipe 231, a delivery pipe 232 and an input pipe 233. One end of the inflow pipe is connected to the input end of the evaporator 22, the output end of the evaporator 22 is connected to one end of the outflow pipe 231, the other end of the outflow pipe 231 is connected to the four-way valve 24, one end of the input pipe 233 is connected to one connecting end of the four-way valve 24, the other end of the input pipe 233 is connected to the input end of the compressor 21, the output end of the compressor 21 is connected to one end of the delivery pipe 232, the other end of the delivery pipe 232 is connected to the other connecting end of the four-way valve 24, and the remaining connecting end of the four-way valve 24 is connected to the connecting pipe 234.

[0042] The refrigerant enters the evaporator 22 through the inlet pipe. The refrigerant entering the evaporator 22 absorbs heat from the air under low pressure. The refrigerant that absorbs heat enters the outlet pipe 231. Then, the four-way valve 24 controls the refrigerant to enter the input pipe 233. The input pipe 233 transports the refrigerant to the compressor 21. The compressor 21 compresses the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure refrigerant. Then, the high-temperature refrigerant is output through the delivery pipe 232. The four-way valve 24 controls the high-temperature refrigerant to enter the connecting pipe 234.

[0043] Reference Figure 3 and Figure 4 The heat pump mechanism 2 also includes a secondary heat exchange component, which includes a heat exchanger 25. The heat exchanger 25 is installed on the top surface of the mounting plate 11. The heat exchanger 25 is located on the outside of the compressor 21 and between the compressor 21 and the evaporator 22. The input end of the heat exchanger 25 is connected to the end of the connecting pipe 234 away from the four-way valve 24, and the output end of the heat exchanger 25 is connected to the end of the inflow pipe away from the evaporator 22, that is, the output end of the evaporator 22 is connected to the input end of the compressor 21, the output end of the compressor 21 is connected to the input end of the heat exchanger 25, and the output end of the heat exchanger 25 is connected to the input end of the evaporator 22 to form a cycle, so that the high-temperature refrigerant enters the heat exchanger 25 through the connecting pipe 234, and the refrigerant after exchanging heat in the heat exchanger 25 enters the evaporator 22 through the inflow pipe, thereby completing the circulation of the refrigerant.

[0044] The water outlet end of the heat exchanger 25 is connected to an output pipe 251, and the secondary heat exchange component also includes an electric three-way valve 252. The end of the output pipe 251 away from the heat exchanger 25 is connected to a connecting end of the electric three-way valve 252, and a connecting end of the electric three-way valve 252 is connected to a heating pipe 253. The heating mechanism 3 includes a heating water tank 31, and a first heat exchange coil is arranged in the heating water tank 31. The end of the heating pipe 253 away from the electric three-way valve 252 is connected to the input end of the first heat exchange coil. The intermediate water in the heat exchanger 25 absorbs heat in the refrigerant, and then the intermediate water enters the first heat exchange coil through the heating pipe 253. The water in the heating water tank 31 absorbs the heat of the intermediate water in the first heat exchange coil, thereby heating the water in the heating water tank 31.

[0045] The output end of the first heat exchange coil is connected to a water collection pipe 255, the top of the water collection pipe 255 extends to the top of the mounting plate 11, the bottom of the water collection pipe 255 extends to the hot water mechanism 4 at the bottom, the top of the water collection pipe 255 is connected to a circulating water pump 256, the output end of the circulating water pump 256 is connected to a return water pipe 257, the other end of the return water pipe 257 is connected to the water inlet end of the heat exchanger 25, and a water flow switch is provided on the water collection pipe 255. The intermediate water in the first heat exchange coil that has absorbed heat enters the water collection pipe 255, and then the water flows into the circulating water pump 256 through the water collection pipe 255. Finally, the intermediate water enters the return water pipe 257 from the output end of the circulating water pump 256, and then returns to the heat exchanger 25 from the output end of the return water pipe 257, thereby completing the circulation of the intermediate water.

[0046] Reference Figure 3 and Figure 5 The secondary heat exchange component also includes an expansion water tank 5, which is installed on the top surface of the mounting plate 11. The expansion water tank 5 is arranged opposite to the heat exchanger 25. The bottom end of the expansion water tank 5 is connected to a flow pipe 51, and the other end of the flow pipe 51 is inserted into the outer wall of the water collection pipe 255. The temperature of the middle water is relatively high, and the middle water expands due to heat. Under the action of the expansion water tank 5, the expansion water tank 5 provides additional space to store excess liquid, so that the expansion water tank 5 can stabilize the pressure of the middle water in the flow, and reduce the situation where the pressure of the middle water suddenly rises during the flow, causing the pipeline to rupture or the sealing failure.

[0047] The heating mechanism 3 also includes a heating water pump 32, which is mounted on the top surface of the mounting plate 11, the heating water pump 32 is located outside the expansion water tank 5, the heating water pump 32 is located on one side of the evaporator 22, the input end of the heating water pump 32 is connected to a water inlet pipe 321, the outer wall of the casing 1 is provided with a heating water inlet 14, the other end of the water inlet pipe 321 is inserted into the water inlet, the output end of the heating water pump 32 is connected to a water supply pipe 322, the other end of the water supply pipe 322 is inserted into the bottom of the heating water tank 31, and the heating water pump 3 After the external water flow is drawn, the water flows into the water supply pipe 322 from the output end of the heating water pump 32 and then flows into the heating water tank 31. A heating water outlet pipe is arranged in the heating water tank 31. One end of the heating water outlet pipe is located at the top of the cavity of the heating water tank 31. A heating water outlet 15 is opened on the outer wall of the casing 1. The other end of the heating water outlet pipe is inserted into the heating water outlet 15. The input end of the heating equipment is connected to the heating water outlet 15. The hot water output from the heating water outlet 15 provides heat for the heating equipment, thereby realizing heating.

[0048] Reference Figure 2 and Figure 6 Correspondingly, the remaining connection end of the electric three-way valve 252 is connected to the hot water pipe 254. The hot water mechanism 4 includes a hot water tank 41. A second heat exchange coil 42 is arranged in the hot water tank 41. The input end of the second heat exchange coil 42 is connected to the end of the hot water pipe 254 away from the electric three-way valve 252. The output end of the second heat exchange coil 42 is inserted into the outer wall of the water collection pipe 255. The water in the hot water tank 41 absorbs the heat of the intermediate water in the second heat exchange coil 42. The intermediate water in the second heat exchange coil 42 that has absorbed the heat enters the water collection pipe 255. After that, the intermediate water enters the heat exchanger 25 through the water collection pipe 255 to complete the water circulation.

[0049] A water intake pipe 43 is provided in the hot water tank 41, one end of the water intake pipe 43 is located at the bottom of the hot water tank 41 cavity, a hot water inlet 16 is provided on the outer wall of the casing 1, the other end of the water intake pipe 43 is inserted into the hot water inlet 16, and external water flows into the hot water tank 41 through the hot water inlet 16. A hot water outlet pipe 44 is provided in the hot water tank 41, one end of the hot water outlet pipe 44 is located at the top of the hot water tank 41 cavity, a hot water outlet 17 is provided on the outer wall of the casing 1, the other end of the hot water outlet pipe 44 is inserted into the hot water outlet 17, and the input end of the water-using equipment is connected to the hot water outlet 17, so as to provide domestic hot water for the water-using equipment.

[0050] The present application adopts a two-stage heat exchange design, and realizes step-by-step heat transfer through the intermediate water circulation. The first stage heat exchange is the heat exchange between the refrigerant circulation and the intermediate water circulation, and the refrigerant releases heat to the intermediate water circuit through the heat exchanger 25; the second stage heat exchange is the heat exchange between the intermediate water circulation and the terminal water, and the intermediate water transfers the heat to the terminal water in the heating water tank 31 or the domestic water tank. The intermediate water circulation is used as a heat transfer medium to achieve physical isolation between the refrigerant and the terminal water. In addition, the buffering effect of the intermediate water improves the thermal stability of the system, and can still maintain uniform heating when the load fluctuates greatly. The energy utilization efficiency is optimized through graded heat transfer, the refrigerant circulation load is reduced, and the service life of the equipment is extended.

[0051] Reference Figure 4 and Figure 5 An electrical box 26 is installed on the top surface of the mounting plate 11, and the electrical box 26 is arranged opposite to the evaporator 22. A circulation space 18 is formed between the expansion water tank 5, the electrical box 26, the compressor 21, the heat exchanger 25 and the evaporator 22. The pipe network component is located outside the compressor 21 and the heat exchanger 25. An air inlet 12 is opened on the top of the casing 1, and the air inlet 12 corresponds to the input end of the fan 221. An air outlet 13 is opened on the top surface of the casing 1. The air outlet 13 is located at the top of one end of the evaporator 22, and the air outlet 13 is located at the end of the casing 1 away from the pipe network component. The circulation space 18 formed by the enclosure can guide the flow direction of the cold air. The air passes through the air inlet 12 enters the evaporator 22, and after the evaporator 22 absorbs the heat in the air, the cold air is discharged through the end of the evaporator 22 away from the fan 221, and then the cold air enters the circulation space 18. After the cold air absorbs the heat generated by the compressor 21, the heat exchanger 25 and the electrical box 26, it is discharged through the air outlet 13, thereby dissipating the heat of the compressor 21, the heat exchanger 25 and the electrical box 26. At the same time, compared with the situation where the air outlet 13 is directly facing the top of the circulation space 18 or is located at one end of the casing 1 close to the pipe network component, the present application can increase the contact range of the cold air with the compressor 21, the heat exchanger 25 and the electrical box 26, thereby better dissipating the heat.

[0052] An exhaust port 19 is provided on the outer wall of the casing 1, and an exhaust pipe 258 is provided inside the casing 1. One end of the exhaust pipe 258 is inserted into the exhaust port 19, and the other end of the exhaust pipe 258 is inserted into the top outer wall of the output pipe 251. A branch pipe 259 is connected to the top outer wall of the water collecting pipe 255, and the other end of the branch pipe 259 is inserted into the outer wall of the exhaust pipe 258. A valve is connected to the exhaust pipe 258. When the equipment is in a closed state, there is excess gas in the pipeline. Under the action of the exhaust pipe 258 and the branch pipe 259, the air can be discharged in time to reduce the situation where the pressure in the pipeline is too high and caused damage.

[0053] A high-pressure switch 61 and an exhaust gas sensor are sequentially arranged on the delivery pipe 232 along the gas flow direction. Correspondingly, a low-pressure switch 62 and a return gas sensor are sequentially arranged on the input pipe 233 along the gas flow direction, so that the gas pressure and temperature in the delivery pipe 232 and the input pipe 233 can be monitored. When the pressure or the temperature is high, the compressor 21 stops working, thereby reducing the risk of accidents and equipment damage.

[0054] Reference Figure 6 The heating water tank 31 and the hot water tank 41 are respectively provided with an electronic magnesium rod 45. The minerals contained in the water will form scale during the heating process, thereby affecting the heat energy transfer efficiency and increasing energy consumption. The electronic magnesium rod 45 can effectively inhibit the formation of scale by releasing specific ions.

[0055] The heating water tank 31 and the hot water tank 41 are respectively provided with sensors for monitoring the water level and water temperature in the water tanks. By real-time monitoring the water level and water temperature, the system can understand the hot water reserve in the water tanks and the temperature state of the hot water. In this way, the system can reasonably adjust the operation of the heat pump mechanism 2 and the supply of hot water according to actual needs, ensuring the stability and continuity of the heating and hot water supply.

[0056] The heating water tank 31 and the hot water tank 41 are respectively provided with electric heating pipes 46, which are used to heat the water inside the heating water tank 31 or the hot water tank 41, provide sufficient heat for the heating water tank or the hot water tank, and quickly increase the temperature of the hot water in the water tank.

[0057] The implementation principle of an integrated double-tank heat pump device in the embodiment of the present application is: When heating is needed, the electric heating pipe 46 is started first. The electric heating pipe 46 serves as the main heating source. The electric heating pipe 46 heats the water in the heating water tank 31 to a corresponding temperature. When the heating capacity of the electric heating pipe 46 is insufficient, the heat pump mechanism 2 is started again. The heat pump mechanism 2 serves as the second heating source. The heat provided by the heat pump mechanism 2 assists the electric heating pipe 46 in heating the water in the heating water tank 31.

[0058] When it is necessary to start the heat pump mechanism 2, external air enters the fan 221 through the air inlet 12, the evaporator 22 absorbs heat in the air, and the cold air that has absorbed heat is discharged through the end of the evaporator 22 away from the fan 221, and a part of the discharged cold air enters the circulation space 18. The cold air entering the circulation space 18 takes away the heat from the compressor 21, the electrical box 26, the heat exchanger 25 and the surface of the evaporator 22, and then flows to the top of the circulation space 18, and is finally discharged from the air outlet 13. Another part of the cold air discharged from the evaporator 22 is blown toward the heating water pump 32. The cold air takes away the heat from the surface of the heating water pump 32 and is discharged from the air outlet 13.

[0059] The refrigerant in the evaporator 22 absorbs heat from the air and evaporates into refrigerant gas. The refrigerant gas enters the outflow pipe 231 and is controlled by the four-way valve 24 to enter the inlet pipe 233. The inlet pipe 233 transports the refrigerant to the compressor 21. The compressor 21 compresses the refrigerant gas into high-temperature and high-pressure refrigerant gas. After that, the high-temperature refrigerant is output through the delivery pipe 232. The four-way valve 24 controls the high-temperature refrigerant to enter the connecting pipe 234. The refrigerant enters the heat exchanger 25 through the connecting pipe 234. The intermediate water in the heat exchanger 25 absorbs the heat in the refrigerant. The refrigerant with absorbed heat enters the inlet pipe through the output end of the heat exchanger 25 and returns to the evaporator 22, thereby realizing the circulation of the refrigerant.

[0060] The intermediate water that absorbs heat in the heat exchanger 25 enters the output pipe 251 through the water outlet end, and the intermediate water in the output pipe 251 flows into the heating pipe 253 through the control of the electric three-way valve 252. The intermediate water enters the first heat exchange coil through the heating pipe 253, and the terminal water in the heating water tank 31 absorbs the heat of the intermediate water in the first heat exchange coil, thereby realizing the heating of the terminal water in the heating water tank 31. The intermediate water after absorbing heat enters the water collection pipe 255 from the output end of the first heat exchange coil, and then the intermediate water flows back to the heat exchanger 25 through the water collection pipe 255 to realize the circulation of the intermediate water.

[0061] Finally, after the terminal water is heated to the corresponding temperature, the terminal water is discharged into the heating equipment through the heating outlet pipe. The terminal water provides heat for the heating equipment, thereby achieving heating.

[0062] Correspondingly, when the user needs to use hot water, the electric three-way valve 252 controls the intermediate water in the output pipe 251 to flow into the hot water pipe 254, and the intermediate water enters the second heat exchange coil 42 through the hot water pipe 254. The domestic water in the hot water tank 41 absorbs the heat of the intermediate water in the second heat exchange coil 42, thereby realizing the heating of the domestic water in the hot water tank 41. The intermediate water after absorbing the heat enters the water collection pipe 255 from the output end of the second heat exchange coil. After that, the intermediate water flows back to the heat exchanger 25 through the water collection pipe 255, realizing the circulation of the intermediate water.

[0063] After the domestic water in the hot water tank 41 is heated to a corresponding temperature, the domestic water enters the water-using equipment through the hot water outlet pipe 44, thereby providing domestic hot water for the water-using equipment.

[0064] The above are all preferred embodiments of the present application. The embodiments are only explanations of the present application and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An integrated double-tank heat pump device, characterized in that: include: Casing (1): A mounting plate (11) is mounted on the top of the inner wall of the casing (1); Heat pump mechanism (2): The heat pump mechanism (2) is arranged on the top surface of the mounting plate (11), and the heat pump mechanism (2) includes a primary heat exchange component and a secondary heat exchange component, the output end of the primary heat exchange component is connected to the input end of the secondary heat exchange component, the output end of the secondary heat exchange component is connected to the input end of the primary heat exchange component, the primary heat exchange component uses a refrigerant as a heat exchange medium, the secondary heat exchange component uses intermediate water as a heat exchange medium, and the intermediate water absorbs heat in the refrigerant; Heating mechanism (3): the heating mechanism (3) is arranged at the bottom of the mounting plate (11), and the input end of the heating mechanism (3) is connected to a connection end of the water outlet end of the secondary heat exchange component; Hot water mechanism (4): The hot water mechanism (4) is arranged at the bottom of the heating mechanism (3), and the input end of the hot water mechanism (4) is connected to the other connection end of the water outlet end of the secondary heat exchange component.

2. The integrated double-tank heat pump device according to claim 1, characterized in that: The first-stage heat exchange component comprises a compressor (21) and an evaporator (22) having a fan (221), and the second-stage heat exchange component comprises a heat exchanger (25), the output end of the evaporator (22) is connected to the input end of the compressor (21), the output end of the compressor (21) is connected to the input end of the heat exchanger (25), and the output end of the heat exchanger (25) is connected to the input end of the evaporator (22).

3. The integrated double-tank heat pump device according to claim 2, characterized in that: The heating mechanism (3) comprises a heating water tank (31) and a first heat exchange coil. The first heat exchange coil is arranged in the heating water tank (31). The input end of the first heat exchange coil is connected to the water outlet end of the heat exchanger (25), and the output end of the first heat exchange coil is connected to the water inlet end of the heat exchanger (25).

4. The integrated double-tank heat pump device according to claim 3, characterized in that: The output end of the first heat exchange coil is connected to a water collecting pipe (255), and the other end of the water collecting pipe (255) is connected to the water outlet end of the heat exchanger (25).

5. The integrated double-tank heat pump device according to claim 4, characterized in that: The secondary heat exchange component comprises an expansion water tank (5), which is mounted on the top surface of the mounting plate (11), the bottom end of the expansion water tank (5) is connected to a flow pipe (51), and the other end of the flow pipe (51) is inserted into the outer wall of the water collection pipe (255).

6. The integrated double-tank heat pump device according to claim 4, characterized in that: An exhaust port (19) is provided on the outer wall of the casing (1), an exhaust pipe (258) is provided inside the casing (1), one end of the exhaust pipe (258) is inserted into the exhaust port (19), and the other end of the exhaust pipe (258) is inserted into the outer wall of the water collecting pipe (255).

7. The integrated double-tank heat pump device according to claim 4, characterized in that: An electrical box (26) is installed on the top surface of the mounting plate (11), and the electrical box (26) is arranged opposite to the evaporator (22). The compressor (21) is installed in the middle of the top surface of the mounting plate (11). The heat exchanger (25) is located outside the compressor (21), and the heat exchanger (25) is located between the compressor (21) and the evaporator (22). The expansion tank (5) and the heat exchanger (25) are arranged opposite to each other. A circulation space (18) is formed between the expansion tank (5), the electrical box (26), the compressor (21), the heat exchanger (25) and the evaporator (22). An air inlet (12) is provided on the top of the casing (1), and the air inlet (12) corresponds to the input end of the fan (221). An air outlet (13) is provided on the top surface of the casing (1), and the air outlet (13) is located on a side of the evaporator (22) away from the fan (221).

8. The integrated double-tank heat pump device according to claim 7, characterized in that: The air outlet (13) is located outside the circulation space (18), and the air outlet (13) is located at an end of the casing (1) away from the heat exchanger (25).

9. The integrated double-tank heat pump device according to claim 7, characterized in that: The heating mechanism (3) also includes a heating water pump (32), which is installed on the top surface of the mounting plate (11), is located outside the expansion water tank (5), is located on one side of the evaporator (22), is located at the bottom of the air outlet (13), and is used to transport external water flow into the heating water tank (31).

10. The integrated double-tank heat pump device according to claim 1, characterized in that: An electric heating pipe (46) is arranged in the heating water tank (31).

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