Hybrid power triple co-generation heat pump system

Abstract

The utility model discloses a hybrid power triple co-generation heat pump system which comprises an air source heat pump. The output end of the air source heat pump communicates with the S end of a first three-way valve, the B end of the first three-way valve communicates with the input end of a tail end heat supply module and the B end of a second three-way valve, and the output end of the tail end heat supply module communicates with the input end of the air source heat pump through a heat pump circulating pump and also communicates with the output end of a heat exchange piece through a hot water electromagnetic valve. The input end of the boiler is communicated through a boiler circulating pump; the A end of the first three-way valve communicates with the input end of the heat exchange piece and the A end of the second three-way valve. The S end of the second three-way valve communicates with the output end of the boiler; the heat exchange piece is arranged in the hot water tank. According to the utility model, the air source heat pump and the traditional boiler can be effectively combined, the air source heat pump and the boiler have the functions of heating, domestic hot water preparation, refrigeration and the like, and the air source heat pump and the boiler can operate respectively or simultaneously. The limitation and defects of an air source heat pump are overcome, and a traditional boiler does not need to be transformed or disassembled.

Description

Technical Field

[0001] The present application relates to the field of heating technology, and more specifically, to a hybrid power trigeneration heat pump system. Background Art

[0002] The main traditional heating methods include gas boilers, electric boilers, municipal centralized heating, etc. With the development of heating technology, boilers are gradually being eliminated, and heat pumps are favored by more and more users. A heat pump is a device that uses high-level thermal energy to make heat flow from a low-level heat source to a high-level heat source. The heat supplied by the heat pump (that is, the heat obtained by the high-level heat source) is the sum of the high-level energy consumed and the heat absorbed from the low-level heat source. Therefore, the use of a heat pump system can make full use of low-level energy and save high-level energy. However, heat pumps also face some problems. Traditional terminals generally use radiators, and the hot water and heating temperature of heat pumps is low. It can only meet the hot water and heating needs of fan coil units, floor heating, etc. at normal temperatures, but cannot meet the high-temperature hot water and heating needs of radiators. Moreover, the heating method of using only heat pumps is relatively single, and the heating efficiency of heat pumps in winter is also relatively low. In addition, the abandonment of traditional boilers will cause waste of resources. If the heat pump and boiler can be combined to achieve the goal that when the temperature is not very low, the boiler and heat pump can work independently to meet the heating and hot water supply needs at normal temperature, and when the temperature is very low, the heat pump and boiler can work together to meet the heating and hot water supply needs at low temperature, the above problems can be solved. Summary of the Invention

[0003] The purpose of the embodiment of the present application is to provide a hybrid trigeneration heat pump system to solve the problems in the prior art of low water and heating temperatures of heat pumps, a single heating method, low heating efficiency in winter, and the problem of waste of resources caused by the abandonment of traditional boilers.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a hybrid trigeneration heat pump system, including an air source heat pump, a boiler, a terminal heating module, a hot water tank, a heat exchanger, a first three-way valve, a second three-way valve, a heat pump circulation pump, a boiler circulation pump, and a hot water solenoid valve; the output end of the air source heat pump is connected to the S end of the first three-way valve, the B end of the first three-way valve is connected to the input end of the terminal heating module, and is also connected to the B end of the second three-way valve, the output end of the terminal heating module is connected to the input end of the air source heat pump through the heat pump circulation pump, and is also connected to the output end of the heat exchanger through the hot water solenoid valve, and is also connected to the input end of the boiler through the boiler circulation pump; the A end of the first three-way valve is connected to the input end of the heat exchanger, and is also connected to the A end of the second three-way valve; the S end of the second three-way valve is connected to the output end of the boiler; the heat exchanger is arranged in the hot water tank.

[0005] In one embodiment, the hybrid trigeneration heat pump system further includes a heat pump one-way valve and a boiler one-way valve, the output end of the air source heat pump is connected to the S end of the first three-way valve through the heat pump one-way valve; the output end of the boiler is connected to the S end of the second three-way valve through the boiler one-way valve.

[0006] In one embodiment, the heat exchange element is a heat exchange coil.

[0007] In one embodiment, heat exchange fins are provided on the outer side of the heat exchange coil.

[0008] In one embodiment, the heat exchange coil is made of copper.

[0009] In one embodiment, the hybrid trigeneration heat pump system further includes a tank hot water outlet valve and a tank cold water inlet valve; the hot water tank has a tank inlet pipe and a tank outlet pipe; the tank hot water outlet valve is arranged on the tank outlet pipe, and the tank cold water inlet valve is arranged on the tank inlet pipe.

[0010] In one embodiment, the terminal heating module includes a buffer tank, a terminal circulation pump and several terminal heat exchangers, and the several terminal heat exchangers are arranged in parallel; the buffer tank has a tank water inlet end, a tank first water outlet end, a tank return water end and a tank second water outlet end, the tank water inlet end and the tank second water outlet end are the input end and output end of the terminal heating module respectively, the tank first water outlet end is connected to the input end of each terminal heat exchanger through the terminal circulation pump, and the output end of each terminal heat exchanger is connected to the tank return water end.

[0011] In one embodiment, the hybrid trigeneration heat pump system further includes a heat pump filter, and the heat pump filter is disposed on a pipeline connecting the air source heat pump and the S end of the first three-way valve.

[0012] In one embodiment, the hybrid trigeneration heat pump system further includes a boiler filter, which is disposed on a pipeline connecting the output end of the boiler and the S end of the second three-way valve.

[0013] Compared with the prior art, the hybrid trigeneration heat pump system described in this utility model has the following advantages:

[0014] Beneficial effects:

[0015] 1. It has multiple working modes: heat pump heating mode, heat pump cooling mode, heat pump hot water mode, boiler heating mode, boiler hot water mode, mixed heating mode, and mixed hot water mode. Under normal circumstances, the heat pump heating or cooling mode and heat pump hot water mode can be turned on as needed. When the ambient temperature is relatively low and the heat pump cannot meet the heating demand or high-temperature hot water is required, the mixed heating mode and mixed hot water mode can be turned on. When the ambient temperature is particularly low or the heat pump fails, the boiler heating mode and boiler hot water mode can be turned on as needed. Various modes can be freely selected according to the ambient temperature, weather conditions, and actual needs. It is versatile, convenient, and fast.

[0016] 2. The air source heat pump and boiler can operate independently or together, complementing each other, making up for their respective deficiencies, giving full play to their respective advantages, and achieving high efficiency and energy saving;

[0017] 3. The air source heat pump and the boiler are cleverly connected through the first three-way valve, the second three-way valve, the heat pump circulation pump and the boiler circulation pump, which can meet the needs of hot water supply and heating at normal temperatures such as fan coil units and floor heating, as well as the needs of high-temperature hot water supply and heating such as radiators. It can basically meet the various needs of the terminal heating module and has a wide range of applications. For users who have already installed traditional boilers and terminal heating modules, the boilers and terminal heating modules do not need to be dismantled or modified and can be directly connected and used, avoiding waste of resources. It has a simple structure, is easy to implement, easy to install and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A flow chart of a hybrid trigeneration heat pump system provided by an embodiment of the present application in a mode where an air source heat pump provides heating or cooling to a terminal heating module;

[0020] Figure 2 for Figure 1 A flow chart of the hybrid trigeneration heat pump system in a mode in which the air source heat pump supplies heat to the hot water tank, causing the hot water tank to produce hot water;

[0021] Figure 3 for Figure 1 A flow chart of the hybrid trigeneration heat pump system in a mode where the boiler supplies heating to the terminal heating module;

[0022] Figure 4 for Figure 1 A flow chart of the hybrid trigeneration heat pump system in a mode in which the boiler supplies heat to the hot water tank, causing the hot water tank to produce hot water;

[0023] Figure 5 for Figure 1 Flowchart of the hybrid trigeneration heat pump system in hybrid heating mode;

[0024] Figure 6 for Figure 1 Flowchart of the hybrid trigeneration heat pump system in hybrid hot water supply mode;

[0025] Figure 7 A simplified flow chart of a hybrid trigeneration heat pump system provided in another embodiment of the present application.

[0026] Among them, the reference numerals in the figures are:

[0027] 1. Air source heat pump; 2. Boiler; 3. Terminal heating module; 31. Buffer tank; 311. Tank water inlet; 312. Tank first water outlet; 313. Tank return water; 314. Tank second water outlet; 32. Terminal circulation pump; 33. Terminal heat exchanger; 4. Hot water tank; 41. Tank outlet pipe; 42. Tank inlet pipe; 5. First three-way valve; 6. Second three-way valve; 7. Heat pump circulation pump; 8. Boiler circulation pump; 9. Heat exchanger; 10. Heat pump check valve; 11. Boiler check valve; 12. Hot water solenoid valve; 13. Tank hot water outlet valve; 14. Tank cold water inlet valve; 15. Heat pump filter; 16. Boiler filter. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0029] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0032] See also Figures 1 to 6 , which is a hybrid trigeneration heat pump system described in an embodiment of the present utility model, includes an air source heat pump 1, a boiler 2, a terminal heating module 3, a hot water tank 4, a heat exchanger 9, a first three-way valve 5, a second three-way valve 6, a heat pump circulation pump 7, a boiler circulation pump 8, and a hot water solenoid valve 12; the output end of the air source heat pump 1 is connected to the S end of the first three-way valve 5, the B end of the first three-way valve 5 is connected to the input end of the terminal heating module, and is also connected to the B end of the second three-way valve 6, and the output end of the terminal heating module 3 is connected to the heat pump 1. The circulation pump 7 is connected to the input end of the air source heat pump 1, and is also connected to the output end of the heat exchange element 9 through the hot water solenoid valve 12, and is also connected to the input end of the boiler 2 through the boiler circulation pump 8; the A end of the first three-way valve 5 is connected to the input end of the heat exchange element 9, and is also connected to the A end of the second three-way valve 6; the S end of the second three-way valve 6 is connected to the output end of the boiler 2; the heat exchange element 9 is arranged in the hot water tank 4; the hot water tank 4 has a tank water inlet pipe 42 connected to the input end of the hot water tank 4 and a tank water outlet pipe 41 connected to the output end of the hot water tank 4.

[0033] Among them, the first three-way valve 5, the terminal heating module 3 and the heat pump circulation pump 7 constitute a heat pump cooling and heating system; the air source heat pump 1, the first three-way valve 5, the heat exchange element 9, the hot water tank 4, the hot water solenoid valve 12 and the heat pump circulation pump 7 constitute a heat pump hot water supply system; the second three-way valve 6, the terminal heating module 3, the boiler circulation pump 8 constitute a boiler heating system; the boiler 2, the second three-way valve 6, the heat exchange element 9, the hot water tank 4, the hot water solenoid valve 12 and the boiler circulation pump 8 constitute a boiler hot water supply system; when the heat pump cooling and heating system and the boiler heating system work together, they constitute a mixed heating system, and when the heat pump hot water supply system and the boiler hot water supply system work together, they constitute a mixed hot water supply system.

[0034] The hybrid trigeneration heat pump system has six operating modes, which are as follows:

[0035] like Figure 1 As shown, the first mode is that the air source heat pump 1 provides heating or cooling to the terminal heating module 3. When in this mode, the working state of the entire hybrid tri-heat supply pump system is switched to the working state of the heat pump heating and cooling system. Specifically, when working, the air source heat pump 1 and the heat pump circulation pump 7 are working, and the first three-way valve 5 is powered on and switched to the SB end. At this time, the heat medium or refrigerant of the air source heat pump 1 is input to the terminal heating module 3 through the SB end connected to the first three-way valve 5, providing a heat source or a cold source to the terminal heating module 3, realizing heating or cooling of the terminal heating module 3, and realizing the heat pump heat medium after heating or the heat pump refrigerant after cooling is returned to the air source heat pump 1 under the drive of the heat pump circulation pump 7; when this state is to be stopped, the air source heat pump 1 and the heat pump circulation pump 7 are stopped, and the SB end of the first three-way valve 5 is cut off.

[0036] like Figure 2 As shown, the second mode is a mode in which the air source heat pump 1 supplies heat to the hot water tank 4, so that the hot water tank 4 produces hot water. When in this mode, the working state of the entire hybrid trigeneration heat pump system is switched to the working state of the heat pump hot water supply system. Specifically, during operation, the air source heat pump 1 and the heat pump circulation pump 7 are powered on and run, the hot water solenoid valve 12 is powered on and opened, and the first three-way valve 5 is powered on and switched to the SA end for connection. At this time, the output end of the air source heat pump 1 is connected to the input end of the heat exchanger 9 through the first three-way valve 5, and the high-temperature heat medium is input into the heat exchanger 9 through the SA end connected to the first three-way valve 5. The heat medium of the air source heat pump 1 exchanges heat with the water in the hot water tank 4 through the heat exchanger 9 to achieve heating of the water in the hot water tank 4. After the heat exchange of the heat medium of the air source heat pump 1 is completed, it is returned to the air source heat pump 1 through the opened hot water solenoid valve 12 under the drive of the heat pump circulation pump 7. When the air source heat pump 1 is to be stopped from heating the water in the hot water tank 4, the power supply to the air source heat pump 1 and the heat pump circulation pump 7 is stopped, and the SA end of the first three-way valve 5 is switched to the disconnected state.

[0037] like Figure 3As shown, the third mode is a mode in which boiler 2 supplies heat to the terminal heating module 3. When in this mode, the entire hybrid tri-heat pump system switches to the boiler heating system mode. Specifically, during operation, boiler 2, boiler circulation pump 8, and terminal heating module 3 are powered on, and the second three-way valve 6 is switched to the SB end. At this time, the output end of boiler 2 is connected to the input end of terminal heating module 3 via the connected SB end of the second three-way valve 6. Therefore, the high-temperature heat medium generated by boiler 2 can be transported to the terminal heating module 3 through the SB end of the second three-way valve 6 for heat exchange. The terminal heating module 3 obtains heat and performs heating. After heat exchange, the heat medium of boiler 2 is driven by the boiler circulation pump 8 and returns to boiler 2 from the output end of the terminal heating module 3. To stop boiler 2 from supplying heat to the terminal heating module 3, the power supply to boiler 2, boiler circulation pump 8, and terminal heating module 3 is cut off, and the connection to the SB end of the second three-way valve 6 is cut off.

[0038] like Figure 4 As shown, the fourth mode is one in which boiler 2 supplies heat to hot water tank 4, causing hot water to be produced in hot water tank 4. In this mode, the entire hybrid trigeneration heat pump system switches to the boiler hot water supply system. During operation, boiler 2, boiler circulation pump 8, and hot water solenoid valve 12 are energized, and the second three-way valve 6 is switched to SA. The output of boiler 2 then feeds the high-temperature heat medium generated by boiler 2 into heat exchanger 9 via SA, which is connected to the second three-way valve 6. The high-temperature heat medium from boiler 2 exchanges heat with the water in hot water tank 4 through heat exchanger 9, causing the water in hot water tank 4 to absorb heat and form hot water. After the heat exchange is complete, the heat medium from boiler 2 is driven by boiler circulation pump 8 and then output from the output of heat exchanger 9, returning to boiler 2 to absorb heat and form high-temperature heat medium. To stop boiler 2 from supplying heat to hot water tank 4, de-energize boiler 2, boiler circulation pump 8, and hot water solenoid valve 12, and disconnect SA from the second three-way valve 6.

[0039] like Figure 5As shown, the fifth is the hybrid heating mode. When in this mode, the working state of the entire hybrid trigeneration heat pump system is switched to the hybrid heating system working state. At this time, the heat pump cooling and heating system and the boiler heating system are combined to work together. Specifically, during operation, the air source heat pump 1, the heat pump circulation pump 7, the boiler 2, the boiler circulation pump 8, and the terminal heating module 3 are energized and operated, and the first three-way valve 5 and the second three-way valve 6 are both energized and switched to the SB end for connection. At this time, the air source heat pump 1 is connected to the input end of the terminal heating module 3 through the SB end connected to the first three-way valve 5, and the boiler 2 is connected to the input end of the terminal heating module 3 through the SB end connected to the second three-way valve 6. Therefore, the air source heat pump 1 can input the high-temperature heat medium generated therein into the terminal heating module 3 through the SB end connected to the first three-way valve 5, and supply heat to the terminal heating module 3; at the same time, the boiler 2 can input the high-temperature heat medium generated therein into the terminal heating module 3 through the SB end connected to the second three-way valve 6, and supply heat to the terminal heating module 3; under the drive of the heat pump circulation pump 7 and the boiler circulation pump 8, the heat medium that has completed heat exchange through the terminal heating module 3 returns to the air source heat pump 1 and the boiler 2 from the output end of the terminal heating module 3 respectively. As can be seen, in this state, both the heat pump cooling and heating system and the boiler heating system can provide heat energy to the terminal heating module 3, forming a hybrid heating system. This state is suitable for winter when the ambient temperature is relatively low and the air source heat pump 1 cannot meet the heating demand. When it is necessary to stop the air source heat pump 1 and boiler 2 from heating the terminal heating module 3, the air source heat pump 1, the heat pump circulation pump 7, the boiler 2, the boiler circulation pump 8, and the terminal heating module 3 are powered off, and the SB end of the first three-way valve 5 and the SB end of the second three-way valve 6 are disconnected.

[0040] like Figure 6As shown, the sixth mode is the hybrid hot water supply mode. When in this mode, the working state of the entire hybrid trigeneration heat pump system is switched to the hybrid hot water supply system working state. At this time, the heat pump hot water supply system and the boiler hot water supply system are combined to work together. Specifically, during operation, the air source heat pump 1, the heat pump circulation pump 7, the boiler 2, and the boiler circulation pump 8 are energized and run, the hot water solenoid valve 12 is energized and opened, the first three-way valve 5 and the second three-way valve 6 are both energized and switched to the SA end for connection. At this time, the output end of the air source heat pump 1 is connected to the input end of the heat exchanger 9 through the SA end connected to the first three-way valve 5, and the boiler 2 is connected to the input end of the heat exchanger 9 through the SA end connected to the second three-way valve 6. Therefore, the air source heat pump 1 can input the high-temperature medium generated therein into the heat exchanger 9 through the SA end connected to the first three-way valve 5, and the boiler 2 can input the high-temperature medium generated therein into the heat exchanger 9 through the SA end connected to the second three-way valve 6. The high-temperature medium entering the heat exchanger 9 exchanges heat with the water in the hot water tank 4 through the heat exchanger 9, so that the water in the hot water tank 4 is heated to form the required hot water. The medium after the heat exchange in the heat exchanger 9 is then driven by the heat pump circulation pump 7 and the boiler circulation pump 8 and returned from the output end of the heat exchanger 9 to the air source heat pump 1 and the boiler 2 respectively. As can be seen, in this state, both the heat pump water supply system and the boiler water supply system can provide heat energy for the water in the hot water tank 4, forming a hybrid water supply system. This state is suitable for winter when the ambient temperature is relatively low and the air source heat pump 1 cannot meet the hot water supply demand. When it is necessary to stop the air source heat pump 1 and boiler 2 from supplying hot water to the hot water tank 4, the air source heat pump 1, the heat pump circulation pump 7, the boiler 2, the boiler circulation pump 8, and the hot water solenoid valve 12 are powered off, and the SA end of the first three-way valve 5 and the SA end of the second three-way valve 6 are disconnected.

[0041] The utility model can achieve the following beneficial effects:

[0042] 1. It has multiple working modes: heat pump heating mode, heat pump cooling mode, heat pump hot water mode, boiler heating mode, boiler hot water mode, mixed heating mode, and mixed hot water mode. Under normal circumstances, the heat pump heating or cooling mode and heat pump hot water mode can be turned on as needed. When the ambient temperature is relatively low and the heat pump cannot meet the heating demand or high-temperature hot water is required, the mixed heating mode and mixed hot water mode can be turned on. When the ambient temperature is particularly low or the heat pump fails, the boiler heating mode and boiler hot water mode can be turned on as needed. Various modes can be freely selected according to the ambient temperature, weather conditions, and actual needs. It is versatile, convenient, and fast.

[0043] 2. The air source heat pump 1 and boiler 2 can operate independently or together, complementing each other, making up for their respective deficiencies, giving full play to their respective advantages, and achieving high efficiency and energy saving;

[0044] 3. The air source heat pump 1 and the boiler 2 are cleverly connected through a three-way valve and a water pump, which can meet the needs of normal temperature water heating such as fan coil units and floor heating, as well as the needs of high temperature water heating such as radiators. It can basically meet various needs of the terminal heating module 3 and has a wide range of applications. For users who have already installed a traditional boiler 2 and a terminal heating module 3, the boiler 2 and the terminal heating module 3 do not need to be dismantled or modified and can be directly connected and used, avoiding waste of resources. It has a simple structure, is easy to implement, easy to install, and has low cost.

[0045] In summary, the present invention effectively combines an air-source heat pump 1 with a conventional boiler 2, simultaneously providing heating, domestic hot water, and cooling functions. The air-source heat pump 1 and boiler 2 can operate independently or simultaneously, leveraging their respective advantages. This invention not only overcomes the limitations and shortcomings of the air-source heat pump 1, but also eliminates the need for modification or removal of the conventional boiler 2, avoiding waste of resources and reducing investment costs.

[0046] In one embodiment, Figures 1 to 6 As shown, the hybrid trigeneration heat pump system also includes a heat pump check valve 10 and a boiler check valve 11. The output end of the air source heat pump 1 is connected to the S end of the first three-way valve 5 through the heat pump check valve 10. Therefore, after the high-temperature heat medium generated by the air source heat pump 1 is output from the output end of the air source heat pump 1, it must pass through the heat pump check valve 10 before flowing to the first three-way valve 5. The output end of the boiler 2 is connected to the S end of the second three-way valve 6 through the boiler check valve 11. Therefore, after the high-temperature heat medium generated by the boiler 2 is output from the output end of the boiler, it must pass through the boiler check valve 11 before flowing to the second three-way valve 6. The provision of the heat pump check valve 10 and the boiler check valve 11 can prevent water from flowing into the two circulation systems of the air source heat pump 1 and the boiler 2.

[0047] In one embodiment, the heat exchange element 9 is a heat exchange coil.

[0048] Optionally, in order to increase the heat exchange efficiency of the heat exchange coil, heat exchange fins may be provided on the outer surface of the heat exchange coil to increase the heat exchange area of ​​the heat exchange coil.

[0049] Optionally, the heat exchange coil is made of copper material, as copper has very good heat transfer effect.

[0050] In one embodiment, if Figures 1 to 6As shown, the hybrid trigeneration heat pump system also includes a hot water outlet valve 13 and a cold water inlet valve 14. The hot water outlet valve 13 is provided on the tank outlet pipe 41, and the cold water inlet valve 14 is provided on the tank inlet pipe 42. When the hot water supply mode is on, the hot water outlet valve 13 and the cold water inlet valve 14 are opened, so that the tank outlet pipe 41 and the tank inlet pipe 42 are open, thereby allowing external water to enter the hot water tank 4 through the tank inlet pipe 42, and the hot water formed in the hot water tank 4 after heat exchange flows out of the tank outlet pipe 41.

[0051] In one embodiment, if Figures 1 to 6 As shown, the terminal heating module 3 includes a buffer tank 31, a terminal circulation pump 32 and several terminal heat exchangers 33, and the several terminal heat exchangers 33 are arranged in parallel; the buffer tank 31 has a tank water inlet end 311, a tank first water outlet end 312, a tank return water end 313 and a tank second water outlet end 314, the tank water inlet end 311 and the tank second water outlet end 314 are the input end and output end of the terminal heating module 3 respectively, the tank first water outlet end 312 is connected to the input end of each terminal heat exchanger 33 through the terminal circulation pump 32, and the output end of each terminal heat exchanger 33 is connected to the tank return water end 313. When heating, the buffer tank 31 inputs the high-temperature heat medium provided by the air source heat pump 1 or the boiler 2 into the buffer tank 31. Under the drive of the terminal circulation pump 32, the high-temperature heat medium entering the buffer tank 31 is sent to each terminal heat exchanger 33. Each terminal heat exchanger 33 obtains the heat of the high-temperature heat medium to perform heating. The heat medium after heating is returned to the buffer tank 31 under the drive of the terminal circulation pump 32, and then output from the second water outlet 314 of the buffer tank 31, and returned to the air source heat pump 1 or the boiler under the drive of the heat pump circulation pump 7. It returns to the boiler 2 under the drive of the circulation pump 8; when cooling, the buffer tank 31 inputs the low-temperature refrigerant provided by the air source heat pump 1 into the buffer tank 31, and under the drive of the terminal circulation pump 32, the low-temperature refrigerant in the buffer tank 31 is sent to each terminal heat exchanger 33, and each terminal heat exchanger 33 obtains the heat of the low-temperature refrigerant to perform cooling work. The refrigerant that has been cooled returns to the buffer tank 31 under the drive of the terminal circulation pump 32, and is output from the second water outlet 314 of the buffer tank 31 under the drive of the heat pump circulation pump 7 and returns to the air source heat pump 1.

[0052] In one embodiment, if Figure 7 As shown, the hybrid trigeneration heat pump system further includes a heat pump filter 15, which is disposed on the pipeline connecting the air-source heat pump 1 and the S end of the first three-way valve 5. The heat pump filter 15 can filter impurities in the heat medium output by the air-source heat pump 1, preventing impurities from clogging the heat pump check valve 10, the first three-way valve 5, and the heat exchange element 9, thereby affecting the operation of these components.

[0053] In one embodiment, if Figure 7As shown, the hybrid trigeneration heat pump system also includes a boiler filter 16, which is disposed in the pipeline connecting the output end of the boiler 2 and the S end of the second three-way valve 6. The boiler filter 16 can filter impurities in the heat medium output by the boiler 2, preventing impurities from clogging the boiler check valve 11, the second three-way valve 6, and the heat exchange element 9, thereby affecting the operation of these components.

[0054] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A hybrid trigeneration heat pump system, characterized in that: It includes an air source heat pump, a boiler, a terminal heating module, a hot water tank, a heat exchanger, a first three-way valve, a second three-way valve, a heat pump circulation pump, a boiler circulation pump, and a hot water solenoid valve; the output end of the air source heat pump is connected to the S end of the first three-way valve, the B end of the first three-way valve is connected to the input end of the terminal heating module, and is also connected to the B end of the second three-way valve, the output end of the terminal heating module is connected to the input end of the air source heat pump through the heat pump circulation pump, and is also connected to the output end of the heat exchanger through the hot water solenoid valve, and is also connected to the input end of the boiler through the boiler circulation pump; the A end of the first three-way valve is connected to the input end of the heat exchanger, and is also connected to the A end of the second three-way valve; the S end of the second three-way valve is connected to the output end of the boiler; the heat exchanger is arranged in the hot water tank.

2. The hybrid trigeneration heat pump system according to claim 1, characterized in that: It also includes a heat pump one-way valve and a boiler one-way valve. The output end of the air source heat pump is connected to the S end of the first three-way valve through the heat pump one-way valve; the output end of the boiler is connected to the S end of the second three-way valve through the boiler one-way valve.

3. The hybrid trigeneration heat pump system according to claim 2, characterized in that: The heat exchange element is a heat exchange coil.

4. The hybrid trigeneration heat pump system according to claim 3, characterized in that: Heat exchange fins are provided on the outer side of the heat exchange coil.

5. The hybrid trigeneration heat pump system according to claim 3, characterized in that: The heat exchange coil is made of copper.

6. The hybrid trigeneration heat pump system according to claim 1, characterized in that: It also includes a hot water outlet valve and a cold water inlet valve; the hot water tank has a tank inlet pipe and a tank outlet pipe; the hot water outlet valve is arranged on the tank outlet pipe, and the cold water inlet valve is arranged on the tank inlet pipe.

7. The hybrid trigeneration heat pump system according to claim 1, characterized in that: The terminal heating module includes a buffer tank, a terminal circulation pump and several terminal heat exchangers, and the several terminal heat exchangers are arranged in parallel; the buffer tank has a tank water inlet end, a tank first water outlet end, a tank return water end and a tank second water outlet end, the tank water inlet end and the tank second water outlet end are the input end and output end of the terminal heating module respectively, the tank first water outlet end is connected to the input end of each terminal heat exchanger through the terminal circulation pump, and the output end of each terminal heat exchanger is connected to the tank return water end.

8. The hybrid trigeneration heat pump system according to any one of claims 1 to 7, characterized in that: It also includes a heat pump filter, which is arranged on the pipeline connecting the air source heat pump and the S end of the first three-way valve.

9. The hybrid trigeneration heat pump system according to any one of claims 1 to 7, characterized in that: It also includes a boiler filter, which is arranged on a pipeline connecting the output end of the boiler and the S end of the second three-way valve.

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