Heat source tower heat pump system

Abstract

The present invention provides a heat source tower heat pump system, comprising a heat source tower, a heat pump system, a regeneration assembly, a first pipeline, and a second pipeline. The heat source tower has a heat source liquid storage area, and the regeneration assembly includes a regeneration heat exchanger, a regeneration tower, and a circulating air duct assembly connected in a closed loop with the regeneration tower. The regeneration tower has a regeneration liquid storage area within it, and the heat source liquid storage area is connected to a solution evaporator, a heat exhaust condenser, and the regeneration liquid storage area in a switchable manner. The liquid outlets of the solution evaporator and the heat exhaust condenser are connected to the heat source tower. The circulating air duct and the hot water condenser are arranged on the first pipeline, and the outlet of the first pipeline flows out hot water. The cold water evaporator is arranged on the second pipeline, and the outlet of the second pipeline flows out chilled water. The heat source tower heat pump system provided by the present invention can solve the problem of existing heat pump water heaters in the winter, where frosting is severe during heating operation, resulting in the heat pump being unable to operate continuously.

Description

Technical Field

[0001] The present invention relates to the technical field related to heat pump equipment, and in particular to a heat source tower heat pump system. Background Art

[0002] In the hotel industry, 24-hour hot water supply is essential. Large hotels require large volumes of hot water, and producing it is a relatively costly endeavor. Commonly used water heaters include electric water heaters, gas water heaters, and heat pump water heaters. Heat pump water heaters offer lower operating costs and comply with national energy conservation and carbon reduction policies. They have seen rapid growth in recent years and hold significant market potential.

[0003] Currently, heat pump water heaters utilize air as a heat source, using a heat pump to absorb heat from the air and produce high-temperature hot water. Due to their high heating cost-effectiveness (COP), operating costs are relatively low, offering excellent economic benefits to owners. Air source heat pump systems generally utilize finned radiators.

[0004] However, in seasons with higher temperatures, heat pump water heaters can operate stably and continuously. However, after entering winter, the heating conditions are severely frosted, which causes the heat pump to be unable to operate continuously. The defrosting operation causes the system to operate inefficiently. Moreover, the demand for hot water in winter is greater than that in summer, and sometimes it is necessary to rely on electric water heaters or gas boilers to supplement it, which increases the operating investment cost.

[0005] As can be seen from the above, the current heat pump water heater has the problem that after entering winter, the heating condition is severely frosted, resulting in the heat pump being unable to operate continuously. Summary of the Invention

[0006] The main purpose of the present invention is to provide a heat source tower heat pump system to solve the problem in the prior art that after entering winter, frosting is serious during the heating process, resulting in the heat pump being unable to operate continuously.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a heat source tower heat pump system is provided, which includes a heat source tower having a heat source liquid storage area; a heat pump system including a compressor, a hot water condenser, a heat exhaust condenser, a cold water evaporator and a solution evaporator connected in sequence end to end; a regeneration component including a regeneration heat exchanger, a regeneration tower and a circulating air duct component connected in a closed loop with the regeneration tower, the regeneration tower having a regeneration liquid storage area inside, the heat source liquid storage area being connected to the solution evaporator, the heat exhaust condenser and the regeneration liquid storage area in a disconnectable manner, and the solution evaporation The liquid outlets of the heat exchanger and the heat rejection condenser are connected to the heat source tower, the solution evaporator is used to cool the liquid, and the heat rejection condenser is used to heat the liquid; the first pipeline, a part of the circulating air duct assembly and the hot water condenser are arranged on the first pipeline to heat the liquid inside the first pipeline, and the liquid inside the first pipeline provides heat for the liquid inside the regeneration storage area through the regeneration heat exchanger, and hot water flows out of the outlet of the first pipeline; the second pipeline, the cold water evaporator is arranged on the second pipeline, the cold water evaporator is used to cool the liquid inside the second pipeline, and chilled water flows out of the outlet of the second pipeline.

[0008] Furthermore, the heat source tower has a heat source accommodating chamber and a liquid inlet and a liquid outlet connected to the heat source accommodating chamber. Along the height direction of the heat source tower, the bottom area of the heat source accommodating chamber is the heat source liquid storage area, the liquid outlet is connected to the heat source liquid storage area, the liquid inlet is arranged above the liquid outlet, and the heat source accommodating chamber also has a heat source filling area located above the heat source liquid storage area, and the heat source filling area is located between the liquid inlet and the liquid outlet.

[0009] Furthermore, the heat source tower is provided with an air inlet and an air outlet connected to the heat source accommodating cavity. The air inlet is arranged between the heat source liquid storage area and the heat source filling area, and the air outlet is arranged above the heat source filling area.

[0010] Furthermore, the heat source tower heat pump system also includes an exhaust fan, which is arranged on the heat source tower and provides driving force for the gas flow inside the heat source tower; and / or a heat source spray head, which is arranged inside the heat source accommodating cavity and is connected to the liquid inlet, and the heat source spray head sprays liquid toward the heat source filling area.

[0011] Furthermore, the heat source tower heat pump system also includes a first liquid outlet pipe, a first end of the first liquid outlet pipe is connected to the liquid outlet; a first circulation pipe, one end of the first circulation pipe is connected to the second end of the first liquid outlet pipe, the other end of the first circulation pipe is connected to the liquid inlet, and a heat exhaust condenser is arranged on the first circulation pipe; a second circulation pipe, one end of the second circulation pipe is connected to the second end of the first liquid outlet pipe, the other end of the second circulation pipe is connected to the liquid inlet, and a solution evaporator is arranged on the second circulation pipe; a connecting pipe, one end of the connecting pipe is connected to the second end of the first liquid outlet pipe, and the other end of the connecting pipe is connected to the regeneration liquid storage area.

[0012] Furthermore, the heat source tower heat pump system also includes a heat source pump, which is arranged on the first liquid outlet pipe; a first valve, which is arranged on the first circulation pipe; a second valve, which is arranged on the second circulation pipe; and a third valve, which is arranged on the connecting pipe.

[0013] Furthermore, the regeneration tower has a regeneration accommodating chamber and two air outlets connected to the regeneration accommodating chamber. Along the height direction of the regeneration tower, the bottom area of the regeneration accommodating chamber is the regeneration liquid storage area. The two air outlets are spaced apart to form an installation area. The regeneration accommodating chamber also has a regeneration filling area located above the regeneration liquid storage area, and the regeneration filling area is located inside the installation area.

[0014] Furthermore, the circulating air duct assembly includes a circulating fan, the air inlet end of the circulating fan is connected to the air outlet above; a circulating air duct, the air outlet end of the circulating fan is connected to the air outlet below through the circulating air duct; a surface cooler, at least a part of the surface cooler is located inside the circulating air duct, the first pipeline is connected to the surface cooler, the surface cooler provides heat to the liquid inside the first pipeline, the surface cooler is connected to the hot water condenser, and the circulating air duct assembly also includes a water collecting pan, which is arranged below the surface cooler for collecting condensate produced by the surface cooler.

[0015] Furthermore, the regeneration tower also has a first opening and a second opening connected to the regeneration accommodating chamber, the first opening is connected to the regeneration liquid storage area, and the second opening is located above the regeneration filling area. The regeneration component also includes a second liquid outlet pipe, the first end of the second liquid outlet pipe is connected to the first opening, the second end of the second liquid outlet pipe is connected to the second opening, and the regeneration heat exchanger is arranged on the second liquid outlet pipe; the regeneration pump is arranged on the second liquid outlet pipe.

[0016] Furthermore, the heat source tower heat pump system further includes a regeneration spray head disposed inside the regeneration accommodating chamber, wherein the regeneration spray head is communicated with the second opening and sprays liquid toward the regeneration filler area.

[0017] Furthermore, the outlet of the first pipeline has a first water outlet pipe and a reflux pipe. The first water outlet pipe is used to output hot water to the outside. The two ends of the reflux pipe are respectively connected to the first pipelines on the liquid inlet side and the liquid outlet side of the hot water condenser. The regenerative heat exchanger is arranged on the reflux pipe. The heat source tower heat pump system also includes a reflux pump and a reflux valve arranged on the reflux pipe.

[0018] Furthermore, the heat source tower heat pump system also includes a liquid level balancing pipe, which is arranged between the heat source liquid storage area and the regeneration liquid storage area; and a fourth valve, which is arranged on the liquid level balancing pipe.

[0019] The technical solution of the present invention is applied. The heat source tower heat pump system includes a heat source tower, a heat pump system, a regeneration component, a first pipeline and a second pipeline. The heat source tower has a heat source liquid storage area. The heat pump system includes a compressor, a hot water condenser, a heat exhaust condenser, a cold water evaporator and a solution evaporator connected in sequence. The regeneration component includes a regeneration heat exchanger, a regeneration tower and a circulating air duct component connected in a closed loop with the regeneration tower. The regeneration tower has a regeneration liquid storage area inside. The heat source liquid storage area is connected to the solution evaporator, the heat exhaust condenser and the regeneration liquid storage area in a disconnectable manner. The liquid outlets of the solution evaporator and the heat exhaust condenser are connected to the heat source tower. The solution evaporator is used to cool the liquid, and the heat exhaust condenser is used to heat the liquid. A part of the circulating air duct assembly and the hot water condenser are arranged on the first pipeline to heat the liquid inside the first pipeline. The liquid inside the first pipeline provides heat for the liquid inside the regeneration storage area through the regeneration heat exchanger. Hot water flows out of the outlet of the first pipeline. The cold water evaporator is arranged on the second pipeline. The cold water evaporator is used to cool the liquid inside the second pipeline. The outlet of the second pipeline flows out chilled water.

[0020] The heat pump system, the regenerative component, and the heat source tower of the present application are coordinated, and the components in the heat pump system and the regenerative component have higher temperature components, which can heat the liquid inside the first pipeline through heat exchange technology, so that the first pipeline can discharge hot water. The condensate evaporator in the heat pump system absorbs the temperature of the liquid inside the second pipeline, thereby cooling the liquid inside the second pipeline, so that the second pipeline can discharge chilled water.

[0021] As can be seen from the above, the heat source tower heat pump system of the present application fully utilizes the heat source generated by the system itself to achieve heating when producing hot water, without the need to set up additional heating devices, thus avoiding waste of system heat and improving heat utilization efficiency. The concentration of the internal liquid of the heat source tower and the internal liquid of the regeneration tower in the present application changes in real time and can be connected to each other to achieve dynamic liquids inside the heat source tower and the regeneration tower, thus avoiding the phenomenon of freezing of the internal liquid of the regeneration tower and the heat source tower. The heat source tower system of the present application is applicable to a variety of scenarios, is not affected by the temperature of the external environment, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 A schematic diagram showing the connection relationship of the heat source tower heat pump system according to the present invention.

[0024] The above drawings include the following reference numerals:

[0025] 1. Heat source tower; 10. Heat source pump; 11. Heat source showerhead; 12. Heat source packing area; 13. Heat source liquid storage area; 14. First valve; 15. Second valve; 16. Exhaust fan; 17. Third valve; 18. Fourth valve; 19. Liquid level balance pipe; 110. First circulation pipe; 111. Second circulation pipe; 112. Connecting pipe; 113. First liquid outlet pipe; 2. Regeneration tower; 20. Circulating fan; 21. Circulating air duct; 22. Surface cooler; 23. Drain pan; 24. Drain pipe ; 25. Regeneration pump; 26. Regeneration liquid storage area; 27. Second liquid outlet pipe; 28. Regeneration spray head; 29. Regeneration filler area; 210. Regeneration heat exchanger; 3. Heat pump system; 30. Compressor; 31. Hot water condenser; 32. Heat exhaust condenser; 33. Expansion valve; 34. Cold water evaporator; 35. Solution evaporator; 36. Gas-liquid separator; 37. First pipeline; 38. First water outlet pipe; 39. Reflux pipe; 310. Reflux valve; 311. Reflux pump; 312. Second pipeline. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0029] In order to solve the problem in the prior art that the heat pump water heater has severe frost in the heating condition after entering winter, which causes the heat pump to be unable to operate continuously, this embodiment provides a heat source tower heat pump system, which can be used in both household and industrial fields.

[0030] like Figure 1As shown, the heat source tower heat pump system includes a heat source tower 1, a heat pump system 3, a regeneration component, a first pipeline 37 and a second pipeline 312, the heat source tower 1 has a heat source liquid storage area 13, the heat pump system 3 includes a compressor 30, a hot water condenser 31, a heat exhaust condenser 32, a cold water evaporator 34 and a solution evaporator 35 connected in sequence, the regeneration component includes a regeneration heat exchanger 210, a regeneration tower 2 and a circulating air duct component connected in a closed loop with the regeneration tower 2, the regeneration tower 2 has a regeneration liquid storage area 26 inside, the heat source liquid storage area 13 is connected to the solution evaporator 35, the heat exhaust condenser 32 and the regeneration liquid storage area 26 in a disconnectable manner, and the solution evaporator The liquid outlets of the evaporator 35 and the heat rejection condenser 32 are connected to the heat source tower 1. The solution evaporator 35 is used to cool the liquid, and the heat rejection condenser 32 is used to heat the liquid. A part of the circulating air duct assembly and the hot water condenser 31 are arranged on the first pipeline 37 to heat the liquid inside the first pipeline 37. The liquid inside the first pipeline 37 provides heat for the liquid inside the regeneration storage area 26 through the regeneration heat exchanger 210. Hot water flows out of the outlet of the first pipeline 37. The cold water evaporator 34 is arranged on the second pipeline 312. The cold water evaporator 34 is used to cool the liquid inside the second pipeline 312. Chilled water flows out of the outlet of the second pipeline 312.

[0031] The coordinated structure of the heat pump system 3, the regeneration component, and the heat source tower 1 of the present application, and the components with higher temperatures in the heat pump system 3 and the regeneration component, can heat the liquid inside the first pipeline 37 through heat exchange technology, so that the first pipeline 37 can discharge hot water. The condensed water evaporator in the heat pump system 3 absorbs the temperature of the liquid inside the second pipeline 312, thereby cooling the liquid inside the second pipeline 312, so that chilled water can flow out of the second pipeline 312.

[0032] Specifically, the heat source tower heat pump system of the present application fully utilizes the heat source generated by the system itself to achieve heating when producing hot water, without the need for additional heating devices, thus avoiding waste of system heat and improving heat utilization efficiency. The concentration of the internal liquid of the heat source tower 1 and the liquid inside the regeneration tower 2 in the present application changes in real time and can be connected to each other to achieve dynamic liquids inside the heat source tower 1 and the regeneration tower 2, thus avoiding the phenomenon of freezing of the liquid inside the regeneration tower 2 and the heat source tower 1. The heat source tower heat pump system of the present application is applicable to a variety of scenarios, is not affected by the temperature of the external environment, and improves the user experience.

[0033] Furthermore, cooling water flows into the open ends of the first pipe 37 and the second pipe 312 to heat or cool the cooling water to form hot water or chilled water.

[0034] In this embodiment, the heat pump system 3 also includes an expansion valve 33 and a gas-liquid separator 36. The expansion valve 33 is located between the heat rejection condenser 32 and the cold water evaporator 34, while the gas-liquid separator 36 is located between the compressor 30 and the solution evaporator 35. After passing through the compressor 30, the refrigerant is heated to high-temperature exhaust gas. It then passes through the hot water condenser 31 and the heat rejection condenser 32, where it is cooled. The refrigerant then passes through the expansion valve 33, throttling the refrigerant to a low-temperature state. The refrigerant then passes through the cold water evaporator 34 and the solution evaporator 35, where it is heated. After passing through the gas-liquid separator 36, the refrigerant returns to the compressor 30, completing the cycle.

[0035] like Figure 1 As shown, the heat source tower 1 has a heat source accommodating chamber and a liquid inlet and a liquid outlet connected to the heat source accommodating chamber. Along the height direction of the heat source tower 1, the bottom area of the heat source accommodating chamber is a heat source liquid storage area 13, the liquid outlet is connected to the heat source liquid storage area 13, the liquid inlet is arranged above the liquid outlet, and the heat source accommodating chamber also has a heat source filling area 12 located above the heat source liquid storage area 13, and the heat source filling area 12 is located between the liquid inlet and the liquid outlet.

[0036] Specifically, liquid entering the heat source chamber through the liquid inlet first passes through the accommodating filler area before falling into the heat source liquid storage area 13. During this process, the liquid fully contacts the liquid inside the heat source chamber. For example, if the liquid is antifreeze, the antifreeze comes into contact with the air and absorbs heat and moisture from the air. After the temperature of the antifreeze rises, it flows to the regeneration liquid storage area 26. As the air inside the heat source chamber exchanges with the ambient air, the antifreeze continuously absorbs moisture and becomes diluted. The diluted antifreeze then flows out of the liquid outlet.

[0037] Furthermore, the heat source tower 1 is provided with an air inlet and an air outlet connected to the heat source accommodating chamber. The air inlet is provided between the heat source liquid storage area 13 and the heat source filling area 12, and the air outlet is provided above the heat source filling area 12. The gas enters the heat source accommodating chamber from the air inlet, contacts the antifreeze liquid, and then flows toward the air outlet.

[0038] In order to improve the air flow efficiency, the heat source tower heat pump system of the present application further includes an exhaust fan 16, which provides driving force for the air flow. The exhaust fan 16 is arranged inside the heat source tower 1 near the air outlet.

[0039] It should be noted that the contact area between gas and liquid is effectively increased in the heat source filler area 12 .

[0040] In this embodiment, the heat source tower heat pump system further includes a heat source spray head 11, which is disposed inside the heat source accommodating cavity and is in communication with the liquid inlet. The heat source spray head 11 sprays liquid toward the heat source filling area 12. A plurality of heat source spray heads 11 may be provided, and the plurality of heat source spray heads 11 spray the liquid inside the liquid inlet toward the heat source filling area 12. The use of a spraying method is beneficial for increasing the contact area between the liquid, the air, and the filling area.

[0041] like Figure 1 As shown, the heat source tower heat pump system also includes a first liquid outlet pipe 113, a first circulation pipe 110, a second circulation pipe 111 and a connecting pipe 112. The first end of the first liquid outlet pipe 113 is connected to the liquid outlet, one end of the first circulation pipe 110 is connected to the second end of the first liquid outlet pipe 113, and the other end of the first circulation pipe 110 is connected to the liquid inlet. The heat exhaust condenser 32 is arranged on the first circulation pipe 110, one end of the second circulation pipe 111 is connected to the second end of the first liquid outlet pipe 113, and the other end of the second circulation pipe 111 is connected to the liquid inlet. The solution evaporator 35 is arranged on the second circulation pipe 111, one end of the connecting pipe 112 is connected to the second end of the first liquid outlet pipe 113, and the other end of the connecting pipe 112 is connected to the regeneration liquid storage area 26.

[0042] Specifically, the first liquid outlet pipe 113 is connected to the liquid outlet, so that the internal liquid of the heat source liquid storage area 13 is discharged outward through the first liquid outlet pipe 113 .

[0043] Furthermore, the first liquid outlet pipe 113, the first circulation pipe 110 and the heat source accommodating chamber cooperate to form a first circulation flow channel, and the liquid flowing through the first circulation pipe 110 exchanges heat with the heat exhaust condenser 32, thereby achieving the heating of the liquid inside the first circulation pipe 110, and the heated high-temperature liquid flows back to the heat source accommodating chamber.

[0044] Furthermore, the first liquid outlet pipe 113, the second circulation pipe 111 and the heat source accommodating chamber cooperate to form a second circulation channel, and the liquid flowing through the second circulation pipe 111 exchanges heat with the solution evaporator 35, thereby achieving the cooling of the liquid inside the second circulation pipe 111, and the cooled liquid flows back to the heat source accommodating chamber.

[0045] Furthermore, the liquid in the first liquid outlet pipe 113 flows to the regeneration liquid storage area 26 through the connecting pipe 112 to achieve liquid transfer.

[0046] In this embodiment, a tee may be provided at the connection between the first liquid outlet pipe 113 and the first circulation pipe 110 , the second circulation pipe 111 and the connecting pipe 112 .

[0047] The heat source tower heat pump system also includes a heat source pump 10, a first valve 14, a second valve 15 and a third valve 17. The heat source pump 10 is arranged on the first liquid outlet pipe 113 to provide driving force for the liquid flow through the heat source pump 10; the first valve 14 is arranged on the first circulation pipe 110 to control the on and off of the first circulation pipe 110; the second valve 15 is arranged on the second circulation pipe 111 to control the on and off of the second circulation pipe 111; the third valve 17 is arranged on the connecting pipe 112 to control the on and off of the connecting pipe 112.

[0048] like Figure 1 As shown, the regeneration tower 2 has a regeneration accommodating chamber and two air outlets connected to the regeneration accommodating chamber. Along the height direction of the regeneration tower 2, the bottom area of the accommodating chamber is the regeneration liquid storage area 26. The two air outlets are spaced apart to form an installation area. The regeneration accommodating chamber also has a regeneration filling area 29 located above the regeneration liquid storage area 26. The regeneration filling area 29 is located inside the installation area.

[0049] Specifically, the two air outlets are used to communicate with the circulating air duct component to achieve the circulating flow of gas. During the circulating flow, the gas exchanges heat with the interior of the regeneration accommodating chamber to increase the temperature of the gas.

[0050] Furthermore, the circulating air duct assembly includes a circulating fan 20, a circulating air duct 21 and a surface cooler 22. The air inlet end of the circulating fan 20 is connected to the upper air outlet, and the air outlet end of the circulating fan 20 is connected to the lower air outlet through the circulating air duct 21. At least a portion of the surface cooler 22 is located inside the circulating air duct 21. The first pipeline 37 is connected to the surface cooler 22. The surface cooler 22 provides heat for the liquid inside the first pipeline 37. The surface cooler 22 is connected to the hot water condenser 31.

[0051] Among them, the circulating fan 20 provides driving force for the gas to flow inside the circulating air duct 21 and the regeneration chamber. The gas after absorbing heat exchanges heat to the liquid inside the first pipeline 37 when flowing through the surface cooler 22 to heat the first liquid. At the same time, the gas flowing through the surface cooler 22 will be cooled. The cooled gas enters the regeneration chamber through the air outlet below to exchange heat again.

[0052] It should be noted that condensed water will be produced on the surface of the surface cooler 22. The circulating air duct assembly also includes a water collecting pan 23, which is arranged below the surface cooler 22 to collect the condensed liquid produced by the surface cooler 22 and flow it out through the drain pipe 24.

[0053] In this embodiment, the regeneration tower 2 further has a first opening and a second opening connected to the regeneration accommodating chamber. The first opening is connected to the regeneration liquid storage area 26 , and the second opening is located above the regeneration filler area 29 .

[0054] Among them, the regeneration component also includes a second liquid outlet pipe 27 and a regeneration pump 25, the first end of the second liquid outlet pipe 27 is connected to the first opening, the second end of the second liquid outlet pipe 27 is connected to the second opening, the regeneration heat exchanger 210 is arranged on the second liquid outlet pipe 27, and the regeneration pump 25 is arranged on the second liquid outlet pipe 27.

[0055] Specifically, the liquid flowing through the second liquid outlet pipe 27 is heated under the heat exchange action of the regeneration heat exchanger 210 and flows into the interior of the regeneration chamber, so that the liquid inside the regeneration chamber has a higher temperature, thereby providing heat for the gas flowing through the interior of the regeneration chamber.

[0056] Furthermore, the regeneration accommodating chamber and the second liquid outlet pipe 27 form a third circulation flow channel, and the regeneration pump 25 provides driving force for the liquid circulation flow.

[0057] Furthermore, the heat source tower heat pump system further includes a regeneration spray head 28 disposed inside the regeneration accommodating chamber. The regeneration spray head 28 is communicated with the second opening and sprays liquid toward the regeneration filling area 29 .

[0058] It should be noted that the liquid in the first pipe 37 is heated by the surface cooler 22 and then flows through the hot water condenser 31 to be heated again, thereby heating the cooling water into hot water.

[0059] Furthermore, the outlet of the first pipeline 37 has a first water outlet pipe 38 and a backflow pipe 39. The first water outlet pipe 38 is used to output hot water. The two ends of the backflow pipe 39 are respectively connected to the first pipeline 37 on the liquid inlet and liquid outlet sides of the hot water condenser 31. The regenerative heat exchanger 210 is disposed on the backflow pipe 39. The heat source tower heat pump system also includes a backflow pump 311 and a backflow valve 310 disposed on the backflow pipe 39. The backflow pump 311 is used to provide driving force for the flow of liquid, and the backflow valve 310 is used to control the flow of liquid inside the backflow pipe 39.

[0060] The first outlet pipe directly discharges hot water to the outside, and the reflux pipe 39 is used to allow the hot water to flow through the regenerative heat exchanger 210 to heat the liquid inside the second liquid outlet pipe 27. The liquid flowing back to the first pipe 37 in the reflux pipe 39 will flow back into the first pipe 37 and be heated again when flowing through the hot water condenser 31 to fully utilize the heat.

[0061] like Figure 1 As shown, the heat source tower heat pump system further includes a liquid level balancing pipe 19 and a fourth valve 18 . The liquid level balancing pipe 19 is arranged between the heat source liquid storage area 13 and the regeneration liquid storage area 26 , and the fourth valve 18 is arranged on the liquid level balancing pipe 19 .

[0062] Specifically, by setting the liquid level balance pipe 19, the liquid with higher concentration in the regeneration storage area 26 can flow to the interior of the heat source storage area 13, thereby balancing the solution concentration in the heat source storage area 13 to achieve a dynamic balance, which will not cause the liquid inside the heat source storage area 13 to continue to become thinner and freeze.

[0063] Furthermore, the fourth valve 18 is used to control the on-off of the liquid inside the liquid level balance pipe 19 .

[0064] In this embodiment, the heat source tower heat pump system is used in spring, summer, autumn, and winter. Since freezing does not occur in spring, summer, and autumn, the heat source tower heat pump system of this application can be adjusted to different operating modes. That is, this application has an anti-freeze operating mode and a normal operating mode. When the heat source tower heat pump system is in the anti-freeze mode, antifreeze liquid is placed in the heat source liquid storage area 13; when the heat source tower heat pump system is in the normal operating mode, cooling water is placed in the heat source liquid storage area 13.

[0065] It should be noted that the anti-freeze mode is applicable to any season.

[0066] When the heat source tower heat pump system is in anti-freeze mode, the first valve 14 is closed to prevent the liquid inside the first circulation pipe 110 from flowing into the interior of the heat source tower 1. The antifreeze liquid inside the heat source tower 1 flows into the second circulation pipe 111 through the liquid outlet and the first liquid outlet pipe 113. After being cooled by the solution evaporator 35, the antifreeze liquid flows back to the interior of the heat source accommodating chamber. After coming into contact with the gas inside the heat source accommodating chamber, it absorbs heat and water and is diluted. The diluted antifreeze liquid enters the heat source liquid storage area 13 and circulates in the second circulation channel. At the same time, the antifreeze liquid inside the first liquid outlet pipe 113 flows into the regeneration liquid storage area 26 through the connecting pipe 112. The antifreeze liquid inside the regeneration liquid storage area 26 circulates through the second liquid outlet pipe 27. The circulating high-temperature liquid, upon contact with the circulating gas within the regeneration chamber, heats the circulating gas, forming a low-temperature, high-concentration refrigerant. The liquid level equalization pipe 19 dynamically balances the high-concentration refrigerant within the regeneration liquid storage area 26 with the low-concentration antifreeze within the heat source liquid storage area 13, preventing freezing. Driven by the circulating fan 20, the circulating gas heats the cooling water within the first pipeline 37 as it flows through the surface cooler 22. This cools the circulating gas flowing through the surface cooler 22 before flowing into the regeneration chamber. The cooling water within the first pipeline 37 is further heated by the hot water condenser 31 to generate hot water. Some of this hot water flows through the return pipe 39 to the regeneration heat exchanger 210, where it heats the refrigerant in the second liquid outlet pipe 27, achieving heat recovery. The liquid in the second pipeline 312, after being cooled by the cold water evaporator 34, supports the chilled water before being discharged.

[0067] When the heat source tower heat pump system is in normal mode, the refrigerant in the heat source tower 1 is discharged into the regeneration tower 2, and the third valve 17, circulating fan 20, backflow valve 310, regeneration pump 25, and backflow pump 311 are closed. The second valve 15 and the first valve 14 are opened, and cooling water is injected into the heat source tower 1. The cooling water flows into the first circulation pipe 110 and the second circulation pipe 111 through the first liquid outlet. The flow rate in the first circulation pipe 110 and the flow rate in the second circulation pipe 111 are controlled by adjusting the first valve 14 and the second valve 15, thereby adjusting the temperature of the cooling water flowing back into the heat source liquid storage area 13. The cooling water flows through the first pipeline 37 and the hot water condenser 31, where it is heated to hot water before flowing out.

[0068] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0069] The heat source tower heat pump system of the present application makes full use of the heat source generated by the system itself to achieve heating when producing hot water, without the need to set up additional heating devices, thus avoiding the waste of system heat and improving the efficiency of heat utilization. The concentration of the internal liquid of the heat source tower 1 and the liquid inside the regeneration tower 2 in the present application changes in real time and can be connected to each other to achieve the dynamic state of the liquid inside the heat source tower 1 and the regeneration tower 2, thus avoiding the phenomenon of freezing of the liquid inside the regeneration tower 2 and the heat source tower 1. The heat source tower heat pump system of the present application is applicable to a variety of scenarios, is not affected by the temperature of the external environment, and improves the user experience.

[0070] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0072] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0073] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A heat source tower heat pump system, characterized in that: include: A heat source tower (1) having a heat source liquid storage area (13); The heat pump system (3) includes a compressor (30), a hot water condenser (31), a heat exhaust condenser (32), a cold water evaporator (34) and a solution evaporator (35) which are connected in sequence end to end; A regeneration component comprises a regeneration heat exchanger (210), a regeneration tower (2) and a circulation air duct component connected in a closed loop with the regeneration tower (2); the regeneration tower (2) has a regeneration liquid storage area (26) inside, the heat source liquid storage area (13) is connected to the solution evaporator (35), the heat exhaust condenser (32) and the regeneration liquid storage area (26) in a disconnectable manner, the liquid outlets of the solution evaporator (35) and the heat exhaust condenser (32) are connected to the heat source tower (1), the solution evaporator (35) is used to cool the liquid, and the heat exhaust condenser (32) is used to heat the liquid; a first pipeline (37), a portion of the circulating air duct assembly and the hot water condenser (31) being arranged on the first pipeline (37) to heat the liquid inside the first pipeline (37); the liquid inside the first pipeline (37) provides heat to the liquid inside the regeneration liquid storage area (26) through the regeneration heat exchanger (210); and hot water flows out of an outlet of the first pipeline (37); The second pipeline (312) is provided with a cold water evaporator (34) on the second pipeline (312). The cold water evaporator (34) is used to cool the liquid inside the second pipeline (312). Chilled water flows out of the outlet of the second pipeline (312).

2. The heat source tower heat pump system according to claim 1, characterized in that: The heat source tower (1) comprises a heat source accommodating chamber and a liquid inlet and a liquid outlet connected to the heat source accommodating chamber. Along the height direction of the heat source tower (1), the bottom area of the heat source accommodating chamber is the heat source liquid storage area (13). The liquid outlet is connected to the heat source liquid storage area (13). The liquid inlet is arranged above the liquid outlet. The heat source accommodating chamber further comprises a heat source filling area (12) located above the heat source liquid storage area (13). The heat source filling area (12) is located in the area between the liquid inlet and the liquid outlet.

3. The heat source tower heat pump system according to claim 2, characterized in that: The heat source tower (1) is provided with an air inlet and an air outlet which are connected to the heat source accommodating cavity, the air inlet being arranged between the heat source liquid storage area (13) and the heat source filling area (12), and the air outlet being arranged above the heat source filling area (12).

4. The heat source tower heat pump system according to claim 3, characterized in that: The heat source tower heat pump system also includes: an exhaust fan (16), the exhaust fan (16) being arranged on the heat source tower (1), the exhaust fan (16) providing a driving force for the flow of gas inside the heat source tower (1); and / or A heat source spray head (11), the heat source spray head (11) is arranged inside the heat source accommodating cavity, the heat source spray head (11) is connected to the liquid inlet, and the heat source spray head (11) sprays liquid toward the heat source filling area (12).

5. The heat source tower heat pump system according to claim 2, characterized in that: The heat source tower heat pump system also includes: a first liquid outlet pipe (113), wherein a first end of the first liquid outlet pipe (113) is connected to the liquid outlet; a first circulation pipe (110), one end of the first circulation pipe (110) being in communication with the second end of the first liquid outlet pipe (113), the other end of the first circulation pipe (110) being in communication with the liquid inlet, and the heat exhaust condenser (32) being disposed on the first circulation pipe (110); a second circulation pipe (111), one end of the second circulation pipe (111) being in communication with the second end of the first liquid outlet pipe (113), the other end of the second circulation pipe (111) being in communication with the liquid inlet, and the solution evaporator (35) being disposed on the second circulation pipe (111); A connecting pipe (112), one end of which is connected to the second end of the first liquid outlet pipe (113), and the other end of which is connected to the regeneration liquid storage area (26).

6. The heat source tower heat pump system according to claim 5, characterized in that: The heat source tower heat pump system also includes: a heat source pump (10), the heat source pump (10) being arranged on the first liquid outlet pipe (113); a first valve (14), the first valve (14) being arranged on the first circulation pipe (110); a second valve (15), the second valve (15) being arranged on the second circulation pipe (111); A third valve (17), wherein the third valve (17) is provided on the connecting pipe (112).

7. The heat source tower heat pump system according to claim 1, characterized in that: The regeneration tower (2) has a regeneration accommodating chamber and two air outlets connected to the regeneration accommodating chamber. Along the height direction of the regeneration tower (2), the bottom area of the regeneration accommodating chamber is the regeneration liquid storage area (26). The two air outlets are spaced apart to form an installation area. The regeneration accommodating chamber also has a regeneration filling area (29) located above the regeneration liquid storage area (26). The regeneration filling area (29) is located inside the installation area.

8. The heat source tower heat pump system according to claim 7, characterized in that: The circulating air duct assembly includes: a circulation fan (20), wherein the air inlet end of the circulation fan (20) is connected to the air outlet above; A circulating air duct (21), wherein the air outlet of the circulating fan (20) is connected to the air outlet below through the circulating air duct (21); A surface cooler (22), at least a portion of which is located inside the circulating air duct (21), the first pipeline (37) is connected to the surface cooler (22), the surface cooler (22) provides heat for the liquid inside the first pipeline (37), and the surface cooler (22) is connected to the hot water condenser (31); A water receiving tray (23) is provided below the surface cooler (22) to collect condensate produced by the surface cooler (22).

9. The heat source tower heat pump system according to claim 7, characterized in that: The regeneration tower (2) further comprises a first opening and a second opening connected to the regeneration accommodating chamber, wherein the first opening is connected to the regeneration liquid storage area (26), and the second opening is located above the regeneration filler area (29). The regeneration component further comprises: a second liquid outlet pipe (27), wherein a first end of the second liquid outlet pipe (27) is in communication with the first opening, a second end of the second liquid outlet pipe (27) is in communication with the second opening, and the regenerative heat exchanger (210) is disposed on the second liquid outlet pipe (27); A regeneration pump (25) is provided on the second liquid outlet pipe (27).

10. The heat source tower heat pump system according to claim 9, characterized in that: The heat source tower heat pump system further comprises a regeneration spray head (28) arranged inside the regeneration accommodating chamber, wherein the regeneration spray head (28) is communicated with the second opening and sprays liquid toward the regeneration filler area (29).

11. The heat source tower heat pump system according to claim 9, characterized in that: The outlet of the first pipeline (37) has a first water outlet pipe (38) and a backflow pipe (39), the first water outlet pipe (38) is used to output hot water to the outside, the two ends of the backflow pipe (39) are respectively connected to the first pipeline (37) on the liquid inlet side and the liquid outlet side of the hot water condenser (31), the regenerative heat exchanger (210) is arranged on the backflow pipe (39), and the heat source tower heat pump system also includes a backflow pump (311) and a backflow valve (310) arranged on the backflow pipe (39).

12. The heat source tower heat pump system according to any one of claims 1 to 11, characterized in that: The heat source tower heat pump system also includes: a liquid level balancing pipe (19), the liquid level balancing pipe (19) being arranged between the heat source liquid storage area (13) and the regeneration liquid storage area (26); A fourth valve (18), the fourth valve (18) is arranged on the liquid level balance pipe (19).

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