High-efficiency energy-saving multifunctional heat pump hot water system

Abstract

This application relates to a high-efficiency, energy-saving, multi-functional heat pump water heating system, including an air-source heat pump, a high-temperature heat pump, a first cold water tank, a first hot water tank, and a heat exchange device. The inlet of the air-source heat pump is connected to the outlet of the first cold water tank, and the air-source heat pump heats the ambient temperature water flowing from the outlet of the first cold water tank into low-temperature hot water. The high-temperature heat pump includes an evaporator and a condenser. The inlet of the evaporator is connected to the first outlet of the first hot water tank, and the outlet of the evaporator is connected to the first inlet of the first cold water tank. The cooled low-temperature hot water flows into the first cold water tank from the outlet of the evaporator. The first inlet of the heat exchange device is connected to the outlet of the condenser, the second inlet of the heat exchange device is connected to ambient temperature water, and the first outlet of the heat exchange device is connected to the inlet of the condenser. This allows for maximum cascaded utilization of energy, reducing energy costs, and lowering the ambient temperature of the production workshop without increasing power consumption.

Description

Technical Field

[0001] This application relates to the field of heat pump application technology, and in particular to a high-efficiency, energy-saving, multi-functional heat pump water heating system. Background Technology

[0002] In the beverage processing industry, hot water at 70℃~80℃ is required for bottle and can washing and sterilization. The most common heating method is a steam-heated water system, which uses steam produced by a boiler to heat the hot water used in production. However, using steam as a heat source only yields low-grade hot water, resulting in low energy efficiency and high production costs. Utility Model Content

[0003] Therefore, it is necessary to provide a high-efficiency, energy-saving, and multifunctional heat pump water heating system with high energy utilization and low production cost.

[0004] A high-efficiency, energy-saving, and multifunctional heat pump water heating system includes:

[0005] The first cold water tank is used to store room temperature water.

[0006] An air source heat pump, wherein the inlet of the air source heat pump is connected to the outlet of the first cold water tank, and the air source heat pump is used to heat the room temperature water flowing out of the outlet of the first cold water tank into low temperature hot water.

[0007] The first hot water tank has its inlet connected to the outlet of the air source heat pump. The first hot water tank is used to store low-temperature hot water flowing out from the outlet of the air source heat pump.

[0008] A high-temperature heat pump, comprising an evaporator and a condenser, wherein the inlet of the evaporator is connected to the first outlet of a first hot water tank, and low-temperature hot water flowing from the first outlet of the first hot water tank flows into the evaporator to release heat and lower the temperature of the low-temperature hot water; the outlet of the evaporator is connected to the first inlet of a first cold water tank, and the cooled low-temperature hot water flows from the outlet of the evaporator into the first cold water tank; and

[0009] A heat exchange device is provided, wherein the first inlet of the heat exchange device is connected to the outlet of the condenser, the second inlet of the heat exchange device is connected to room temperature water, the heat exchange device is used to exchange heat between the high temperature hot water flowing out of the condenser and the room temperature water flowing into the heat exchange device, and the first outlet of the heat exchange device is connected to the inlet of the condenser so that the high temperature hot water flows into the condenser after the heat exchange is cooled.

[0010] In one embodiment, the air source heat pump further includes a first valve located on a water pipe between the outlet of the evaporator and the first inlet of the first cold water tank.

[0011] In one embodiment, the air source heat pump further includes a first cold water pump, the inlet of which is connected to the outlet of the first cold water tank, and the outlet of the first cold water pump is connected to the inlet of the air source heat pump; the air source heat pump further includes a second valve and a third valve, the second valve being disposed on the water pipe between the outlet of the first cold water tank and the inlet of the first cold water pump, and the third valve being disposed on the water pipe between the outlet of the first cold water pump and the inlet of the air source heat pump.

[0012] In one embodiment, the air source heat pump further includes a first hot water pump, the inlet of which is connected to the first outlet of the first hot water tank, and the outlet of which is connected to the inlet of the evaporator; the air source heat pump further includes a fourth valve and a fifth valve, the fourth valve being disposed on a water pipe between the first outlet of the first hot water tank and the inlet of the first hot water pump, and the fifth valve being disposed on a water pipe between the outlet of the first hot water pump and the inlet of the evaporator.

[0013] In one embodiment, the air source heat pump further includes a sixth valve, which is located on the water pipe between the outlet of the air source heat pump and the inlet of the first hot water tank.

[0014] In one embodiment, the high-efficiency energy-saving multifunctional heat pump water heating system further includes a recirculation pipe, the inlet of which is connected to the second outlet of the first hot water tank, and the outlet of which is connected to the second inlet of the first cold water tank.

[0015] In one embodiment, the high-efficiency energy-saving multifunctional heat pump water heating system further includes a circulating water pump, which is located in the recirculation pipe. The inlet of the circulating water pump is connected to the second outlet of the first hot water tank, and the outlet of the circulating water pump is connected to the second inlet of the first cold water tank. The circulating water pump is used to pump water from the first hot water tank to the first cold water tank. The air source heat pump also includes a seventh valve and an eighth valve. The seventh valve is located in the recirculation pipe between the second outlet of the first hot water tank and the inlet of the circulating water pump, and the eighth valve is located in the recirculation pipe between the outlet of the circulating water pump and the second inlet of the first cold water tank.

[0016] In one embodiment, the high-efficiency energy-saving multifunctional heat pump water heating system further includes a ninth valve, which is located on the water pipe between the outlet of the condenser and the first inlet of the heat exchange device.

[0017] In one embodiment, the high-efficiency energy-saving multifunctional heat pump water heating system further includes a second cold water pump, the inlet of which is connected to the first outlet of the heat exchange device, and the outlet of which is connected to the inlet of the condenser; the high-efficiency energy-saving multifunctional heat pump water heating system further includes a tenth valve and an eleventh valve, the tenth valve being located on the water pipe between the first outlet of the heat exchange device and the inlet of the second cold water pump, and the eleventh valve being located on the water pipe between the outlet of the second cold water pump and the inlet of the condenser.

[0018] In one embodiment, the high-efficiency energy-saving multifunctional heat pump water heating system further includes a second hot water tank and a second cold water tank. The second hot water tank is connected to the second outlet of the heat exchange device, and the second cold water tank is connected to the second inlet of the heat exchange device. The high-efficiency energy-saving multifunctional heat pump water heating system also includes a twelfth valve, which is located on a water pipe between the second outlet of the heat exchange device and the inlet of the second hot water tank. And / or, the high-efficiency energy-saving multifunctional heat pump water heating system further includes a third cold water pump, a thirteenth valve, and a fourteenth valve. The inlet of the third cold water pump is connected to the outlet of the second cold water tank, and the outlet of the third cold water pump is connected to the second inlet of the heat exchange device. The thirteenth valve is located between the outlet of the second cold water tank and the inlet of the third cold water pump, and the fourteenth valve is located on a water pipe between the outlet of the third cold water pump and the second inlet of the heat exchange device.

[0019] In the aforementioned high-efficiency, energy-saving, and multifunctional heat pump water heating system, room temperature water is sent from the outlet of the first cold water tank to the inlet of the air source heat pump. The air source heat pump absorbs low-grade heat energy from the outdoor air through its evaporator. In the condenser of the air source heat pump, the room temperature water is heated to a low-temperature hot water temperature. The heated low-temperature hot water flows into the first hot water tank through the outlet of the air source heat pump. Then, the high-temperature heat pump is started. The low-temperature hot water in the first hot water tank enters the evaporator of the high-temperature heat pump, where it releases heat to the refrigerant. The temperature of the low-temperature hot water drops to near room temperature. The cooled room-temperature water returns to the first cold water tank from the evaporator outlet. The refrigerant in the high-temperature heat pump absorbs heat and evaporates in the evaporator before entering the condenser and releasing heat again. This heats the room-temperature water flowing into the condenser to high-temperature hot water. The high-temperature hot water flows into the heat exchanger and exchanges heat with the room-temperature water flowing into the heat exchanger, causing its temperature to drop. It then flows out through the second outlet of the heat exchanger to provide production water. Simultaneously, the temperature of the room-temperature water flowing out from the second inlet of the heat exchanger rises and flows into the condenser of the high-temperature heat pump from the first outlet. This cycle continues to produce 75°C production water. Thus, the high-efficiency, energy-saving, and multifunctional heat pump water heating system, including air source heat pumps and high-temperature heat pumps, can maximize the cascade utilization of energy, reduce energy consumption costs, reduce waste gas emissions from mineral combustion, and is beneficial to environmental protection. At the same time, it can reduce the ambient temperature of the production workshop without increasing power consumption, thereby improving the working conditions of workers. Attached Figure Description

[0020] Figure 1 This is a simplified structural diagram of a high-efficiency, energy-saving, multi-functional heat pump water heating system according to an embodiment of this application.

[0021] Explanation of icon numbers:

[0022] 10. Air source heat pump; 20. High temperature heat pump; 21. Evaporator; 22. Condenser; 23. Compressor; 24. Throttling device; 30. First cold water tank; 40. First hot water tank; 50. Heat exchanger; 60. Recirculation pipe; 70. Second cold water tank; 80. Second hot water tank; 100. First valve; 110. First cold water pump; 111. Second valve; 112. Third valve; 120. First hot water pump; 121. Fourth valve; 122. Fifth valve; 130. Sixth valve; 140. Circulating water pump; 141. Seventh valve; 142. Eighth valve; 150. Ninth valve; 160. Second cold water pump; 161. Tenth valve; 162. Eleventh valve; 170. Twelfth valve; 180. Third cold water pump; 181. Thirteenth valve; 182. Fourteenth valve. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] See Figure 1 An embodiment of this application provides a high-efficiency, energy-saving, multi-functional heat pump water heating system, including an air source heat pump 10, a high-temperature heat pump 20, a first cold water tank 30, and a first hot water tank 40. The first cold water tank 30 is used to store room temperature water, and the first hot water tank 40 is used to store low-temperature hot water.

[0025] See Figure 1 The inlet of the air source heat pump 10 is connected to the outlet of the first cold water tank 30. The air source heat pump 10 is used to heat the room temperature water flowing out of the outlet of the first cold water tank 30 into low-temperature hot water. The outlet of the air source heat pump 10 is connected to the inlet of the first hot water tank 40. The first hot water tank 40 is used to store the low-temperature hot water flowing out of the outlet of the air source heat pump 10.

[0026] The high-temperature heat pump 20 includes an evaporator 21, a compressor 23, a condenser 22, and a throttling device 24 connected in sequence. The inlet of the evaporator 21 is connected to the first outlet of the first hot water tank 40. Low-temperature hot water flowing out of the first outlet of the first hot water tank 40 flows into the evaporator 21 to release heat and lower the temperature of the low-temperature hot water. The outlet of the evaporator 21 is connected to the first inlet of the first cold water tank 30. The cooled low-temperature hot water flows into the first cold water tank 30 from the outlet of the evaporator 21.

[0027] In use, room temperature water is sent from the outlet of the first cold water tank 30 to the inlet of the air source heat pump 10. The air source heat pump 10 absorbs low-grade heat energy from the ambient air (25℃~35℃) through its evaporator (not shown in the figure). In the condenser of the air source heat pump 10 (not shown in the figure), the room temperature water is heated to low temperature hot water. The heated low temperature hot water flows into the first hot water tank 40 through the outlet of the air source heat pump 10. Then, the high-temperature heat pump 20 is started. The low-temperature hot water in the first hot water tank 40 enters the evaporator 21 of the high-temperature heat pump 20. In the evaporator 21 of the high-temperature heat pump 20, heat is released to the refrigerant of the high-temperature heat pump 20, and the temperature of the low-temperature hot water is reduced to close to room temperature water. The cooled room temperature water returns to the first cold water tank 30 from the outlet of the evaporator 21. After the refrigerant in the high-temperature heat pump 20 absorbs heat and evaporates in the evaporator 21, it enters the compressor 23. After being compressed and its temperature rises, it enters the condenser 22 and releases heat again to produce hot water at a higher temperature.

[0028] In the air source heat pump 10, ambient air heat energy is used to heat water to approximately 50°C, with an energy efficiency index (EQI) of approximately 4.5. Simultaneously, because the air source heat pump 10 absorbs ambient air heat energy, it lowers the ambient temperature and improves the operating temperature. In the high-temperature heat pump 20, heat is extracted from low-temperature hot water to raise the temperature from approximately 50°C to 80°C, with an EQI of approximately 6.6.

[0029] Thus, the high-efficiency, energy-saving, multi-functional heat pump water heating system of this embodiment includes an air source heat pump 10 and a high-temperature heat pump 20, which can maximize the cascade utilization of energy, reduce energy consumption costs, reduce waste gas emissions from mineral combustion, and is beneficial to environmental protection. At the same time, it can reduce the ambient temperature of the production workshop without increasing power consumption, thereby improving the working conditions of workers.

[0030] In one embodiment, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a heat exchange device 50. Optionally, the heat exchange device 50 is a plate heat exchanger. The first inlet of the heat exchange device 50 is connected to the outlet of the condenser 22, and the second inlet of the heat exchange device 50 is used to connect with room temperature water. The heat exchange device 50 is used to exchange heat between the high-temperature hot water flowing out of the condenser 22 and the room temperature water flowing into the heat exchange device 50. The first outlet of the heat exchange device 50 is connected to the inlet of the condenser 22 so that the high-temperature hot water flows into the condenser 22 after the heat exchange is cooled.

[0031] In operation, ambient temperature water at 20°C is supplied to the heat exchanger 50. This ambient temperature water exchanges heat with 80°C high-temperature water flowing in through the first inlet of the heat exchanger 50, causing the temperature of the 80°C hot water to drop to 75°C. This hot water then flows out through the second outlet of the heat exchanger 50 to provide production water. Simultaneously, the temperature of the ambient temperature water flowing out from the second inlet of the heat exchanger 50 rises to 75°C, and this 75°C hot water flows from the first outlet of the heat exchanger 50 into the condenser 22 of the high-temperature heat pump 20. This cycle continues to produce 75°C production water.

[0032] In one embodiment, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a first valve 100. The first valve 100 is located on the water pipe between the outlet of the evaporator 21 of the high-temperature heat pump 20 and the first inlet of the first cold water tank 30. Thus, the first valve 100 can control the flow between the outlet of the evaporator 21 of the high-temperature heat pump 20 and the first inlet of the first cold water tank 30.

[0033] In one embodiment, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a first cold water pump 110. The first cold water pump 110 is located in a water pipe between the outlet of the first cold water tank 30 and the inlet of the air source heat pump 10. The inlet of the first cold water pump 110 is connected to the outlet of the first cold water tank 30, and the outlet of the first cold water pump 110 is connected to the inlet of the air source heat pump 10. By installing the first cold water pump 110, it can pump water from the first cold water tank 30 to the air source heat pump 10.

[0034] Further, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a second valve 111 and a third valve 112. The second valve 111 is located on the water pipe between the first cold water tank 30 and the first cold water pump 110, and the third valve 112 is located on the water pipe between the first cold water pump 110 and the air source heat pump 10. By installing the second valve 111 between the outlet of the first cold water tank 30 and the inlet of the first cold water pump 110, the second valve 111 can control the flow between these two points. Similarly, by installing the third valve 112 between the outlet of the first cold water pump 110 and the inlet of the air source heat pump 10, the third valve 112 can control the flow between these two points.

[0035] In one embodiment, see Figure 1The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a first hot water pump 120. The first hot water pump 120 is installed in the water pipe between the first hot water tank 40 and the evaporator 21 of the high-temperature heat pump 20. The inlet of the first hot water pump 120 is connected to the first outlet of the first hot water tank 40, and the outlet of the first hot water pump 120 is connected to the inlet of the evaporator 21 of the high-temperature heat pump 20. In this way, the first hot water pump 120 can pump low-temperature hot water from the first hot water tank 40 to the high-temperature heat pump 20.

[0036] Furthermore, the air source heat pump 10 also includes a fourth valve 121 and a fifth valve 122. The fourth valve 121 is located on the water pipe between the first outlet of the first hot water tank 40 and the inlet of the first hot water pump 120, thus controlling the flow between the first outlet of the first hot water tank 40 and the inlet of the first hot water pump 120. The fifth valve 122 is located on the water pipe between the outlet of the first hot water pump 120 and the inlet of the evaporator 21 of the high-temperature heat pump 20, thus controlling the flow between the outlet of the first hot water pump 120 and the inlet of the evaporator 21 of the high-temperature heat pump 20.

[0037] In one embodiment, see Figure 1 The air source heat pump 10 also includes a sixth valve 130. The sixth valve 130 is located on the water pipe between the outlet of the air source heat pump 10 and the inlet of the first hot water tank 40. By installing the sixth valve 130 between the outlet of the air source heat pump 10 and the inlet of the first hot water tank 40, the sixth valve 130 can control the flow between the outlet of the air source heat pump 10 and the inlet of the first hot water tank 40.

[0038] In one embodiment, see Figure 1 The air source heat pump 10 high-efficiency, energy-saving, multi-functional heat pump water heating system includes a recirculation pipe 60. The inlet of the recirculation pipe 60 is connected to the second outlet of the first hot water tank 40, and the outlet of the recirculation pipe 60 is connected to the second inlet of the first cold water tank 30. In use, water from the first cold water tank 30 flows into the air source heat pump 10. The air source heat pump 10 uses a small amount of electricity to drive the refrigerant to transfer heat from the ambient air, heating the water flowing out of the first cold water tank 30 by 5°C to form low-temperature hot water. The low-temperature hot water heated by the air source heat pump 10 flows into the first hot water tank 40, and the water in the first hot water tank 40 flows back to the first cold water tank 30 through the recirculation pipe 60. Then, the water in the first cold water tank 30 flows into the air source heat pump 10, which continues to heat the water flowing out of the first cold water tank 30. This cycle repeats until the water temperature in the first cold water tank 30 reaches 45℃ and the water temperature in the first hot water tank 40 reaches 50℃. At this point, the 50℃ water in the first hot water tank 40 is flowed into the high-temperature heat pump 20.

[0039] In one embodiment, see Figure 1 The air source heat pump 10 high-efficiency, energy-saving, and multi-functional heat pump water heating system also includes a circulating water pump 140. The circulating water pump 140 is located in the recirculation pipe 60 and is used to pump water from the first hot water tank 40 to the first cold water tank 30.

[0040] Furthermore, the air source heat pump 10 also includes a seventh valve 141 and an eighth valve 142. The seventh valve 141 is located on the water pipe between the second outlet of the first hot water tank 40 and the inlet of the circulating water pump 140, thus controlling the flow between the second outlet of the first hot water tank 40 and the inlet of the circulating water pump 140. The eighth valve 142 is located on the water pipe between the outlet of the circulating water pump 140 and the second inlet of the first cold water tank 30, thus controlling the flow between the outlet of the circulating water pump 140 and the second inlet of the first cold water tank 30.

[0041] In one embodiment, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a ninth valve 150. The ninth valve 150 is located on the water pipe between the outlet of the condenser 22 of the high-temperature heat pump 20 and the first inlet of the heat exchange device 50. Thus, the ninth valve 150 can control the flow between the outlet of the condenser 22 of the high-temperature heat pump 20 and the first inlet of the heat exchange device 50.

[0042] In one embodiment, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a second cold water pump 160. The second cold water pump 160 is located in the water pipe between the heat exchange device 50 and the high-temperature heat pump 20. The inlet of the second cold water pump 160 is connected to the first outlet of the heat exchange device 50, and the outlet of the second cold water pump 160 is connected to the inlet of the condenser 22 of the high-temperature heat pump 20. In this way, the second cold water pump 160 can pump the high-temperature hot water, after heat exchange in the heat exchange device 50, into the high-temperature heat pump 20.

[0043] Further, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a tenth valve 161 and an eleventh valve 162. The tenth valve 161 is located on the water pipe between the first outlet of the heat exchange device 50 and the inlet of the second cold water pump 160, thus controlling the flow between them. The eleventh valve 162 is located on the water pipe between the outlet of the second cold water pump 160 and the inlet of the condenser 22 of the high-temperature heat pump 20, thus controlling the flow between them.

[0044] In one embodiment, see Figure 1The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a second hot water tank 80. The second hot water tank 80 is connected to the second outlet of the heat exchange device 50. The second hot water tank 80 can temporarily store the 75°C high-temperature hot water flowing out of the second outlet of the heat exchange device 50.

[0045] Furthermore, the high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a twelfth valve 170. The twelfth valve 170 is located on the water pipe between the second outlet of the heat exchange device 50 and the inlet of the second hot water tank 80. Thus, the twelfth valve 170 can control the on / off connection between the second outlet of the heat exchange device 50 and the second hot water tank 80.

[0046] In one embodiment, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a second cold water tank 70. The second cold water tank 70 is used to store room temperature water, and its outlet is connected to the second inlet of the heat exchange device 50. Thus, the second cold water tank 70 can temporarily store room temperature water and supply room temperature water to the heat exchange device 50. Optionally, the water temperature in the second cold water tank 70 is 20°C.

[0047] In one embodiment, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a third cold water pump 180. The third cold water pump 180 is located in a water pipe between the outlet of the second cold water tank 70 and the second inlet of the heat exchange device 50. Thus, the inlet of the third cold water pump 180 is connected to the outlet of the second cold water tank 70, and the outlet of the third cold water pump 180 is connected to the second inlet of the heat exchange device 50. The third cold water pump 180 is used to pump room-temperature water from the second cold water tank 70 into the heat exchange device 50.

[0048] Further, see Figure 1 The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a thirteenth valve 181 and a fourteenth valve 182. The thirteenth valve 181 is located on the water pipe between the outlet of the second cold water tank 70 and the inlet of the third cold water pump 180, thus controlling the flow between them. The fourteenth valve 182 is located between the outlet of the third cold water pump 180 and the second inlet of the heat exchange device 50, thus controlling the flow between them.

[0049] In one embodiment, the high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a PLC automatic control system. The PLC automatic control system includes a touch screen and several electrical components such as modules, and is responsible for completing the operation of the system in conjunction with the production lines in the bottling workshop, including issuing various commands such as start, run, switch, and stop, so that the system can work perfectly with each production line and ensure that each production line operates safely and normally according to the predetermined technical parameters.

[0050] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A high-efficiency, energy-saving, multi-functional heat pump water heating system, characterized in that, include: The first cold water tank is used to store room temperature water. An air source heat pump, wherein the inlet of the air source heat pump is connected to the outlet of the first cold water tank, and the air source heat pump is used to heat the room temperature water flowing out of the outlet of the first cold water tank into low temperature hot water. The first hot water tank has its inlet connected to the outlet of the air source heat pump. The first hot water tank is used to store low-temperature hot water flowing out from the outlet of the air source heat pump. A high-temperature heat pump, comprising an evaporator and a condenser, wherein the inlet of the evaporator is connected to the first outlet of a first hot water tank, and low-temperature hot water flowing from the first outlet of the first hot water tank flows into the evaporator to release heat and lower the temperature of the low-temperature hot water; the outlet of the evaporator is connected to the first inlet of a first cold water tank, and the cooled low-temperature hot water flows from the outlet of the evaporator into the first cold water tank; and A heat exchange device is provided, wherein the first inlet of the heat exchange device is connected to the outlet of the condenser, the second inlet of the heat exchange device is connected to room temperature water, the heat exchange device is used to exchange heat between the high temperature hot water flowing out of the condenser and the room temperature water flowing into the heat exchange device, and the first outlet of the heat exchange device is connected to the inlet of the condenser so that the high temperature hot water flows into the condenser after the heat exchange is cooled.

2. The energy-efficient multifunctional heat pump hot water system according to claim 1, characterized in that, The air source heat pump also includes a first valve, which is located on the water pipe between the outlet of the evaporator and the first inlet of the first cold water tank.

3. The energy-efficient multifunctional heat pump hot water system according to claim 1, characterized in that, The air source heat pump also includes a first cold water pump, the inlet of which is connected to the outlet of the first cold water tank, and the outlet of which is connected to the inlet of the air source heat pump. The air source heat pump also includes a second valve and a third valve. The second valve is located on the water pipe between the outlet of the first cold water tank and the inlet of the first cold water pump, and the third valve is located on the water pipe between the outlet of the first cold water pump and the inlet of the air source heat pump.

4. The energy-efficient multifunctional heat-pump hot-water system according to claim 1, characterized by, The air source heat pump also includes a first hot water pump, the inlet of which is connected to the first outlet of the first hot water tank, and the outlet of which is connected to the inlet of the evaporator. The air source heat pump also includes a fourth valve and a fifth valve. The fourth valve is located on the water pipe between the first outlet of the first hot water tank and the inlet of the first hot water pump, and the fifth valve is located on the water pipe between the outlet of the first hot water pump and the inlet of the evaporator.

5. The energy-efficient multifunctional heat-pump hot-water system according to claim 1, characterized by, The air source heat pump also includes a sixth valve, which is located on the water pipe between the outlet of the air source heat pump and the inlet of the first hot water tank.

6. The energy-efficient multifunctional heat-pump hot-water system according to claim 1, characterized by, The high-efficiency, energy-saving, multi-functional heat pump water heating system also includes a recirculation pipe. The inlet of the recirculation pipe is connected to the second outlet of the first hot water tank, and the outlet of the recirculation pipe is connected to the second inlet of the first cold water tank.

7. The energy-efficient multifunctional heat pump hot water system according to claim 6, characterized in that, The high-efficiency energy-saving multi-functional heat pump water heating system also includes a circulating water pump, which is located in the recirculation pipe. The inlet of the circulating water pump is connected to the second outlet of the first hot water tank, and the outlet of the circulating water pump is connected to the second inlet of the first cold water tank. The circulating water pump is used to pump water from the first hot water tank to the first cold water tank. The air source heat pump also includes a seventh valve and an eighth valve. The seventh valve is located in the recirculation pipe between the second outlet of the first hot water tank and the inlet of the circulating water pump. The eighth valve is located in the recirculation pipe between the outlet of the circulating water pump and the second inlet of the first cold water tank.

8. The energy-efficient multifunctional heat-pump hot-water system according to claim 1, characterized by, The high-efficiency, energy-saving, and multifunctional heat pump water heating system also includes a ninth valve, which is located on the water pipe between the outlet of the condenser and the first inlet of the heat exchange device.

9. The energy-efficient multifunctional heat-pump hot-water system according to claim 1, characterized by, The high-efficiency energy-saving multi-functional heat pump water heating system also includes a second cold water pump, the inlet of which is connected to the first outlet of the heat exchange device, and the outlet of which is connected to the inlet of the condenser. The high-efficiency, energy-saving, multi-functional heat pump water heating system also includes a tenth valve and an eleventh valve. The tenth valve is located on the water pipe between the first outlet of the heat exchange device and the inlet of the second cold water pump, and the eleventh valve is located on the water pipe between the outlet of the second cold water pump and the inlet of the condenser.

10. The energy-efficient multifunctional heat-pump hot-water system according to any one of claims 1 to 9, characterized in that, The high-efficiency energy-saving multi-functional heat pump water heating system also includes a second hot water tank and a second cold water tank. The second hot water tank is connected to the second outlet of the heat exchange device, and the second cold water tank is connected to the second inlet of the heat exchange device. The high-efficiency energy-saving multi-functional heat pump water heating system further includes a twelfth valve, which is located on the water pipe between the second outlet of the heat exchange device and the inlet of the second hot water tank; and / or, the high-efficiency energy-saving multi-functional heat pump water heating system further includes a third cold water pump, a thirteenth valve, and a fourteenth valve, wherein the inlet of the third cold water pump is connected to the outlet of the second cold water tank, the outlet of the third cold water pump is connected to the second inlet of the heat exchange device, the thirteenth valve is located between the outlet of the second cold water tank and the inlet of the third cold water pump, and the fourteenth valve is located on the water pipe between the outlet of the third cold water pump and the second inlet of the heat exchange device.

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