Heat exchange system
By setting up an electronic expansion valve and detection device in the heat exchange system, the system damage caused by leakage of water and fluorine heat exchanger is solved, and the effect of rapid treatment and reduction of maintenance costs is achieved.
Patent Information
- Application Number
- CN202422090534.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The leakage of the water fluorine heat exchanger causes damage to the entire water fluorine system, which has high maintenance costs and large losses to users' property.
A heat exchange system is designed, including water circulation and refrigerant circulation systems, a first and second electronic expansion valve are provided to control the refrigerant pipeline communication, and a detection device and a controller are equipped to close the valve and open the drain valve in the event of leakage to prevent refrigerant and water from flowing into other components.
When the water fluorine heat exchanger leaks, only the electronic expansion valve and drain valve need to be closed to avoid damaging other components, reduce maintenance costs, and protect user property safety.
Smart Images
Figure CN223242834U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of air conditioning technology, for example, to a heat exchange system. Background Art
[0002] With the improvement of living standards, water-based heat exchange systems are becoming increasingly popular in households. These systems require the use of water-fluorine heat exchangers, which typically offer high heat transfer efficiency and can meet the needs of large-scale applications. Furthermore, the cooling and heating terminals are connected to water, which has a high specific heat capacity and can absorb or release large amounts of heat at small temperature differences, making the heat exchange system safer to use.
[0003] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:
[0004] Leakage of the water-fluorine heat exchanger will damage the entire water-fluorine system, requiring replacement of all heat exchange system equipment and ceilings. This will result in high maintenance costs and cause great property losses to users.
[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content
[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.
[0007] The embodiments of the present disclosure provide a heat exchange system that can quickly handle leakage of a water-fluorine heat exchanger and prevent losses to users caused by damage to the water-fluorine heat exchanger.
[0008] An embodiment of the present disclosure provides a heat exchange system, which includes a water circulation system and a refrigerant circulation system. The water circulation system includes a heat dissipation module, and the refrigerant circulation system includes: an outdoor unit; a water-fluorine heat exchanger, wherein the water side of the water-fluorine heat exchanger is connected to the heat dissipation module through a water circulation pipeline, and the refrigerant side of the water-fluorine heat exchanger is connected to the outdoor unit through a refrigerant pipeline, and the refrigerant pipeline includes a first pipeline and a second pipeline, the first pipeline is connected to one end of the refrigerant side of the water-fluorine heat exchanger, and the second pipeline is connected to the other end of the refrigerant side of the water-fluorine heat exchanger; a first electronic expansion valve is provided in the first pipeline, and is used to control the connection or disconnection of the first pipeline with the refrigerant side of the water-fluorine heat exchanger; a second electronic expansion valve is provided in the second pipeline, and is used to control the connection or disconnection of the second pipeline with the refrigerant side of the water-fluorine heat exchanger.
[0009] Optionally, the water circulation pipeline includes: a third pipeline, which is connected to the water inlet on the water side of the water-fluorine heat exchanger, and the third pipeline and / or the water side of the water-fluorine heat exchanger are provided with a drain outlet, which is used to discharge the water on the water side of the water-fluorine heat exchanger to the outside; a drain valve, which is provided at the drain outlet, is used to open or close the drain outlet.
[0010] Optionally, the heat exchange system also includes: a detection device for detecting whether the water-fluorine heat exchanger is leaking; a controller, which is electrically connected to the detection device, the first electronic expansion valve, the second electronic expansion valve and the drain valve, and the controller is configured to control the first electronic expansion valve and the second electronic expansion valve to close, and control the drain valve to open when the water-fluorine heat exchanger leaks.
[0011] Optionally, the detection device includes: a first pressure sensor, arranged on the refrigerant side of the water-fluorine heat exchanger, for detecting the pressure on the refrigerant side of the water-fluorine heat exchanger; the first pressure sensor is electrically connected to the controller, and the controller is configured to judge that the water-fluorine heat exchanger is leaking when the pressure on the refrigerant side of the water-fluorine heat exchanger is less than a pressure threshold, and control the first electronic expansion valve and the second electronic expansion valve to close, and control the drain valve to open.
[0012] Optionally, the detection device includes: a second pressure sensor, arranged on the water side of the water-fluorine heat exchanger, for detecting the pressure on the water side of the water-fluorine heat exchanger; the second pressure sensor is electrically connected to the controller, and the controller is configured to judge that the water-fluorine heat exchanger is leaking when the water pressure of the water-fluorine heat exchanger is less than the initial water injection pressure, and control the first electronic expansion valve and the second electronic expansion valve to close, and control the drain valve to open.
[0013] Optionally, the detection device includes: a flow detection device for detecting the flow on the water side and / or refrigerant side of the water-fluorine heat exchanger; the flow detection device is electrically connected to the controller, and the controller is configured to judge that the water-fluorine heat exchanger is leaking when the flow on the water side and / or refrigerant side of the water-fluorine heat exchanger is less than or equal to a flow threshold, and control the first electronic expansion valve and the second electronic expansion valve to close, and control the drain valve to open.
[0014] Optionally, the refrigerant circulation system also includes: a compressor; an indoor unit; a first four-way valve, wherein the first port of the first four-way valve is connected to the exhaust port of the compressor, the second port of the first four-way valve is connected to the refrigerant side, the third port of the first four-way valve is connected to the outdoor unit, and the fourth port of the first four-way valve is connected to the air inlet of the compressor; a second four-way valve, wherein the first port of the second four-way valve is connected to the exhaust port of the compressor, the second port of the second four-way valve is connected to the indoor unit, the third port of the second four-way valve is connected to the outdoor unit, and the fourth port of the second four-way valve is connected to the air inlet of the compressor; wherein the first four-way valve is electrically connected to the controller, and the controller is configured to control the first four-way valve to close and control the second four-way valve to operate when the water-fluorine heat exchanger leaks, so that the heat exchange system switches to cooling or heating of the indoor unit.
[0015] Optionally, the heat exchange system also includes: a fifth pipeline, one end of which is connected to the outdoor unit, and the other end is connected to the refrigerant side of the indoor unit and the water-fluorine heat exchanger; a sixth pipeline, one end of which is connected to the fifth pipeline, and the other end is connected to the air inlet of the compressor; a first throttling device, which is arranged on the sixth pipeline; a heat exchange device, including a first heat exchange part and a second heat exchange part, the first heat exchange part is connected to the fifth pipeline, and the second heat exchange part is connected to the sixth pipeline, and is located downstream of the throttling device.
[0016] Optionally, the heat exchange system also includes: a liquid inlet pipeline, one end of which is connected to the other end of the fifth pipeline, and the other end is connected to the indoor unit; an air outlet pipeline, one end of which is connected to the indoor unit, and the other end is connected to the compressor, and the number of indoor units is multiple, and the multiple indoor units are arranged in parallel between the liquid inlet pipeline and the air outlet pipeline; a liquid pipe stop valve, which is arranged on the liquid inlet pipeline, and is used to control the on and off of the outdoor unit and the indoor unit; and an air pipe stop valve, which is arranged on the air outlet pipeline, and is used to control the on and off of the compressor and the indoor unit.
[0017] Optionally, the heat exchange system further includes: a prompt device electrically connected to the controller, and the controller is configured to control the prompt device to operate when the water-fluorine heat exchanger leaks.
[0018] The heat exchange system provided by the embodiments of the present disclosure can achieve the following technical effects:
[0019] In the heat exchange system of the disclosed embodiment, the water side of the water-fluorine heat exchanger is connected to the heat dissipation module via a water circulation pipeline. When the heat exchange system is heating, the hot water after heat exchange by the water-fluorine heat exchanger can flow to the heat dissipation module, where it is then dissipated and can be used for heating or providing hot water. The refrigerant side of the water-fluorine heat exchanger is connected to the indoor unit via a refrigerant pipeline. High-temperature refrigerant can flow to the refrigerant side of the water-fluorine heat exchanger to exchange heat with the water side, heating the water on the water side. Electronic expansion valves are provided at both ends of the refrigerant side of the water-fluorine heat exchanger. The first electronic expansion valve can close the connection between the first pipeline and the refrigerant side, and the second electronic expansion valve can close the connection between the second pipeline and the refrigerant side. In this way, when the water-fluorine heat exchanger leaks, the first and second electronic expansion valves can be controlled to close. This can prevent the refrigerant on the refrigerant side from flowing to other components of the heat exchange system. It can also prevent water on the water side from flowing to the refrigerant side and then flowing along the first or second pipeline to other equipment in the heat exchange system, preventing water from entering other components and causing damage to the entire heat exchange system. In this way, when a leak occurs, only the two electronic expansion valves need to be closed, which will not damage other components and does not require replacement of all equipment and ceilings of the heat exchange system, thus reducing maintenance costs and protecting the user's property safety.
[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,
[0022] Figure 1 is a schematic structural diagram of a heat exchange system provided by an embodiment of the present disclosure;
[0023] Figure 2 is a schematic diagram of a partial structure of a heat exchange system provided by an embodiment of the present disclosure;
[0024] Figure 3 is a partial structural diagram of another heat exchange system provided by an embodiment of the present disclosure;
[0025] Figure 4 is another schematic diagram of the heat exchange system structure provided by an embodiment of the present disclosure;
[0026] Figure 5 is a partial structural diagram of another heat exchange system provided by an embodiment of the present disclosure;
[0027] Figure 6 is another schematic diagram of the heat exchange system structure provided by an embodiment of the present disclosure;
[0028] Figure 7 It is a partial structural diagram of another heat exchange system provided in an embodiment of the present disclosure.
[0029] Reference numerals:
[0030] 10. Compressor; 11. Oil separator; 12. Gas-liquid separator; 13. First four-way valve; 14. Second four-way valve; 20. Water-fluorine heat exchanger; 21. First pipeline; 22. Second pipeline; 23. Third pipeline; 24. Fourth pipeline; 25. First electronic expansion valve; 26. Second electronic expansion valve; 27. First valve; 28. Second valve; 29. Drain valve; 30. Outdoor unit; 31. Second throttling device; 32. Fifth pipeline; 33. Sixth pipeline; 34. Heat exchanger; 341. First throttling device; 40. Indoor unit; 41. Liquid inlet pipe; 42. Air outlet pipe; 43. Liquid pipe stop valve; 44. Air pipe stop valve; 50. Heat dissipation module; 51. Water collector; 52. Water distributor; 53. Water inlet pipe; 531. Water inlet stop valve; 54. Water outlet pipe; 541. Water outlet stop valve; 55. Bypass pipe; 551. Bypass valve; 56. Water supply pipe; 561. Water supply valve; 562. Stop valve; 57. Water tank; 571. Filter; 58. Water pump; 581. First drain valve; 582. Second drain valve; 583. Water pressure gauge. DETAILED DESCRIPTION
[0031] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.
[0032] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that such terms are interchangeable where appropriate to describe the embodiments of the present disclosure. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.
[0033] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0034] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.
[0035] Unless otherwise stated, the term "plurality" means two or more.
[0036] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.
[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
[0038] Combine Figures 1 to 7 As shown, an embodiment of the present disclosure provides a heat exchange system, which includes a refrigerant circulation system and a water circulation system. The water circulation system includes a heat dissipation module 50. The refrigerant circulation system includes an indoor unit 40 and a water-fluorine heat exchanger 20. The water-fluorine heat exchanger 20 includes a water side and a refrigerant side for mutual heat exchange. The water side of the water-fluorine heat exchanger 20 is connected to the heat dissipation module 50 through a water circulation pipeline, and the refrigerant side of the water-fluorine heat exchanger 20 is connected to the indoor unit 40 through a refrigerant pipeline.
[0039] The refrigerant circulation system includes a compressor 10, a four-way valve, an outdoor unit 30, a throttling device, and an indoor unit assembly, all connected in sequence via refrigerant piping. The outdoor unit 30 includes an outdoor heat exchanger, while the indoor unit assembly includes an indoor unit 40 and a water-fluorine heat exchanger 20. The indoor unit 40 also includes an indoor heat exchanger. Refrigerant piping connects the outdoor unit 30 to the refrigerant side of the water-fluorine heat exchanger 20 and the indoor unit 40, forming a refrigerant circulation loop.
[0040] like Figures 1 to 7 As shown, the first port of the four-way valve is defined as port d, the second port of the four-way valve is defined as port e, the third port of the four-way valve is defined as port c, and the fourth port of the four-way valve is defined as port s.
[0041] When the heat exchange system is heating, the de port and cs port of the four-way valve are connected. The high-temperature and high-pressure refrigerant flowing out of the compressor 10 flows from the d port to the e port of the four-way valve, and then enters the indoor unit assembly. After condensing and dissipating heat in the indoor unit 40, it flows into the outdoor unit 30 after being throttled by the throttling device. After evaporation in the outdoor unit 30, it flows from the c port of the four-way valve to the s port, and then flows back into the compressor 10.
[0042] When the heat exchange system is cooling, dc and es of the four-way valve are connected, and the high-temperature and high-pressure refrigerant flowing out of the compressor 10 flows from the d port to the c port of the four-way valve, and then enters the outdoor unit 30. After condensing and dissipating heat in the outdoor unit 30, it flows into the indoor unit component through the throttling device. After evaporating in the indoor unit component, it flows from the e port of the four-way valve to the s port, and then returns to the compressor 10.
[0043] Optionally, the four-way valve includes a first four-way valve 13, the first port of the first four-way valve 13 is connected to the exhaust port of the compressor 10, the second port of the first four-way valve 13 is connected to the refrigerant side, the third port of the first four-way valve 13 is connected to the outdoor heat exchanger, and the fourth port of the first four-way valve 13 is connected to the air inlet of the compressor 10.
[0044] In the disclosed embodiment, the first four-way valve 13 can realize the flow path switching during cooling and heating of the water-fluorine heat exchanger 20 and the outdoor heat exchanger. The first port of the first four-way valve 13 is port d, the second port of the first four-way valve 13 is port e, the third port of the first four-way valve 13 is port c, and the fourth port of the first four-way valve 13 is port s. When the heat exchange system is heating, the high-temperature and high-pressure refrigerant flowing out of the exhaust port of the compressor 10 passes through the first port d of the first four-way valve 13 and flows to the second port e of the first four-way valve 13, then passes through the water-fluorine heat exchanger 20 and the throttling device and flows into the outdoor heat exchanger. After flowing out of the outdoor heat exchanger, it flows from the third port c of the first four-way valve 13 to the fourth port s of the first four-way valve 13, and then flows back into the compressor 10. When the heat exchange system is cooling, the high-temperature and high-pressure refrigerant flowing out of the exhaust port of the compressor 10 flows through the first port d of the first four-way valve 13 to the third port c of the first four-way valve 13 and flows into the outdoor unit 30, then flows out of the outdoor unit 30 and flows back to the refrigerant side after throttling, then flows into the first four-way valve 13 through the second port e of the first four-way valve 13, and then flows back to the compressor 10 from the fourth port s of the first four-way valve 13.
[0045] Optionally, the heat exchange system also includes a second four-way valve 14, the first port of the second four-way valve 14 is connected to the exhaust port of the compressor 10, the second port of the second four-way valve 14 is connected to the refrigerant inlet of the indoor heat exchanger, the third port of the second four-way valve 14 is connected to the refrigerant outlet of the outdoor heat exchanger, and the fourth port of the second four-way valve 14 is connected to the air inlet of the compressor 10.
[0046] In the disclosed embodiment, the second four-way valve 14 can realize the flow path switching during cooling and heating of the indoor heat exchanger and the outdoor heat exchanger. The first port of the second four-way valve 14 is port d, the second port of the second four-way valve 14 is port e, the third port of the second four-way valve 14 is port c, and the fourth port of the second four-way valve 14 is port s. When the heat exchange system is heating, the high-temperature and high-pressure refrigerant flowing out of the exhaust port of the compressor 10 flows through the first port d of the second four-way valve 14 to the second port e of the second four-way valve 14, and then flows into the outdoor heat exchanger through the indoor heat exchanger and the throttling device. After flowing out of the outdoor heat exchanger, it flows from the third port c of the second four-way valve 14 to the fourth port s of the second four-way valve 14, and then flows back into the compressor 10. When the heat exchange system is cooling, the high-temperature and high-pressure refrigerant flowing out of the exhaust port of the compressor 10 flows through the first port d of the second four-way valve 14 to the third port c of the second four-way valve 14 and flows into the outdoor unit 30, then flows out of the outdoor unit 30 and flows back to the indoor unit 40 after throttling, then flows into the second four-way valve 14 through the second port e of the second four-way valve 14, and then flows back to the compressor 10 from the fourth port s of the second four-way valve 14.
[0047] Optionally, the refrigerant pipeline includes a first pipeline 21 and a second pipeline 22 , the first pipeline 21 is connected to one end of the refrigerant side of the water-fluorine heat exchanger 20 , and the second pipeline 22 is connected to the other end of the refrigerant side of the water-fluorine heat exchanger 20 .
[0048] In some optional embodiments, such as Figures 1 to 3 As shown, the heat exchange system also includes a first electronic expansion valve 25 and a second electronic expansion valve 26. The first electronic expansion valve 25 is arranged in the first pipeline 21, and the first electronic expansion valve 25 is used to control the connection or disconnection between the first pipeline 21 and the refrigerant side of the water-fluorine heat exchanger 20; the second electronic expansion valve 26 is arranged in the second pipeline 22, and the second electronic expansion valve 26 is used to control the connection or disconnection between the second pipeline 22 and the refrigerant side of the water-fluorine heat exchanger 20.
[0049] In the disclosed embodiment, the inlet and outlet of the water-fluorine heat exchanger 20 are both provided with pipelines, and the inlet and outlet pipelines are both provided with electronic expansion valves, so that the inlet and outlet of the refrigerant side of the water-fluorine heat exchanger 20 can be closed or opened in a controlled manner. When the water-fluorine heat exchanger 20 leaks, the first electronic expansion valve 25 and the second electronic expansion valve 26 can be closed. This can prevent water on the water side from flowing into the refrigerant side and then flowing into the outdoor unit 30 along the refrigerant side pipeline, thereby preventing the water-fluorine heat exchanger 20 from leaking and causing damage to the entire heat exchange system. In this way, only the water-fluorine heat exchanger 20 needs to be repaired or replaced, and there is no need to dismantle the entire heat exchange system or the ceiling, which greatly reduces maintenance costs and improves the user experience.
[0050] Optionally, the second pipeline 22 is connected between the second port of the first four-way valve 13 and the refrigerant side, and the first pipeline 21 is connected between the other end of the refrigerant side and the outdoor unit 30. In this way, the first electronic expansion valve 25 can throttle the refrigerant in the first pipeline 21.
[0051] Optionally, when the heat exchange system is heating, the high-temperature and high-pressure refrigerant flowing out of the compressor 10 flows through the first four-way valve 13 and the second pipeline 22 to the refrigerant side of the water-fluorine heat exchanger 20. The refrigerant flowing out of the refrigerant side is throttled by the first electronic expansion valve 25 and then flows into the outdoor unit 30.
[0052] Optionally, the water circulation pipeline includes a third pipeline 23 and a fourth pipeline 24 , the third pipeline 23 is connected to the water inlet on the water side of the water-fluorine heat exchanger 20 , and the fourth pipeline 24 is connected to the water outlet on the water side of the water-fluorine heat exchanger 20 .
[0053] In the disclosed embodiment, water in the water circulation system flows from the third pipe 23 into the water side of the water-fluorine heat exchanger 20 , exchanges heat with the refrigerant side on the water side, and then flows out through the fourth pipe 24 .
[0054] Optionally, the inlet of the third pipe 23 is connected to the outlet of the heat dissipation module 50, and the outlet of the fourth pipe 24 is connected to the inlet of the heat dissipation module 50. In this way, the water after heat exchange in the water-fluorine heat exchanger 20 flows along the fourth pipe 24 to the heat dissipation module 50, and after heat dissipation in the heat dissipation module 50, it flows back to the water-fluorine heat exchanger 20 through the third pipe 23 for heat exchange.
[0055] Optionally, a drain outlet is provided on the water side of the third pipeline 23 and / or the water-fluorine heat exchanger 20, which is used to discharge the water on the water side of the water-fluorine heat exchanger 20 to the outside; the heat exchange system also includes a drain valve 29, which is provided at the drain outlet and is used to open or close the drain outlet.
[0056] In the disclosed embodiment, the water in the water-fluorine heat exchanger 20 can be discharged through the drain outlet. In this way, when the water-fluorine heat exchanger 20 leaks, the drain valve 29 can be opened to drain the water on the water side of the water-fluorine heat exchanger 20. This can prevent the water from leaking toward the refrigerant side, and further prevent the water from flowing through the refrigerant side to the outdoor unit 30 or other components.
[0057] Optionally, the heat exchange system includes a controller, which is electrically connected to the first electronic expansion valve 25 and the second electronic expansion valve 26 , and is configured to control the opening degrees of the first electronic expansion valve 25 and the second electronic expansion valve 26 .
[0058] Optionally, the controller is electrically connected to the drain valve 29 , and the controller is configured to control the opening and closing of the drain valve 29 .
[0059] Optionally, the heat exchange system further includes a detection device, which is used to detect leakage information of the water-fluorine heat exchanger 20 to determine whether the water-fluorine heat exchanger 20 is leaking.
[0060] Optionally, when the heat exchange system includes a first electronic expansion valve 25 and a second electronic expansion valve 26, the controller is electrically connected to the detection device, the first electronic expansion valve 25, the second electronic expansion valve 26 and the drain valve 29, and the controller is configured to control the opening and closing of the first electronic expansion valve 25, the second electronic expansion valve 26 and the drain valve 29 according to the leakage information of the water-fluorine heat exchanger 20, and control the first electronic expansion valve 25 and the second electronic expansion valve 26 to close when the water-fluorine heat exchanger 20 leaks, and control the drain valve 29 to open.
[0061] In the embodiment of the present disclosure, a detection device is provided in the heat exchange system, which can detect the leakage information of the water-fluorine heat exchanger 20, and then determine whether the water-fluorine heat exchanger 20 is leaking, and then control the opening and closing of the first electronic expansion valve 25, the second electronic expansion valve 26 and the drain valve 29 according to the leakage situation.
[0062] Optionally, the detection device includes a first pressure sensor, which is arranged on the refrigerant side of the water-fluorine heat exchanger 20 and is used to detect the pressure on the refrigerant side of the water-fluorine heat exchanger 20, and the leakage information includes the pressure on the refrigerant side of the water-fluorine heat exchanger 20; the first pressure sensor is electrically connected to the controller, and the controller is configured to judge that the water-fluorine heat exchanger 20 is leaking when the pressure on the refrigerant side of the water-fluorine heat exchanger 20 is less than the pressure threshold, control the first electronic expansion valve 25 and the second electronic expansion valve 26 to close, and control the drain valve 29 to open.
[0063] In the embodiment of the present disclosure, when the water-fluorine heat exchanger 20 leaks, the amount of refrigerant on the refrigerant side will decrease, the pressure on the refrigerant side will also drop, and the leakage will cause a significant pressure change. Therefore, the pressure on the refrigerant side is detected in real time by a first pressure sensor on the refrigerant side of the water-fluorine heat exchanger 20. When the pressure on the refrigerant side is less than the pressure threshold, the controller controls the first electronic expansion valve 25 and the second electronic expansion valve 26 to be closed to prevent the refrigerant and water on the refrigerant side from flowing into the outdoor unit 30, and at the same time controls the drain valve 29 to open to drain the water on the water side. In this way, it is possible to timely determine whether the water-fluorine heat exchanger 20 is leaking, and it can be handled quickly to prevent the entire heat exchange system from being damaged due to the leakage of the water-fluorine heat exchanger 20.
[0064] Optionally, the detection device includes a second pressure sensor, which is arranged on the water side of the water-fluorine heat exchanger 20 and is used to detect the pressure on the water side of the water-fluorine heat exchanger 20. The leakage information includes detecting the pressure on the water side of the water-fluorine heat exchanger 20; the second pressure sensor is electrically connected to the controller, and the controller is configured to judge that the water-fluorine heat exchanger 20 is leaking when the water pressure of the water-fluorine heat exchanger 20 is less than the initial water injection pressure, control the first electronic expansion valve 25 and the second electronic expansion valve 26 to close, and control the drain valve 29 to open.
[0065] In the embodiment of the present disclosure, when the water-fluorine heat exchanger 20 leaks, the water on the water side of the water-fluorine heat exchanger 20 will also decrease, which will cause the pressure on the water side to also decrease. The second pressure sensor can detect the pressure on the water side of the water-fluorine heat exchanger 20 in real time. When the pressure on the water side is less than the initial water injection pressure, it means that the water-fluorine heat exchanger 20 is leaking. At this time, the controller controls the first electronic expansion valve 25 and the second electronic expansion valve 26 to be closed to prevent the refrigerant and water on the refrigerant side from flowing into the outdoor unit 30, and at the same time controls the drain valve 29 to open to drain the water on the water side. In this way, it is possible to promptly determine whether the water-fluorine heat exchanger 20 is leaking and to quickly handle it, thereby preventing the entire heat exchange system from being damaged due to the leakage of the water-fluorine heat exchanger 20.
[0066] Optionally, the detection device includes a flow detection device, which is used to detect the flow on the water side and / or refrigerant side of the water-fluorine heat exchanger 20, and the leakage information includes the flow on the water side and / or refrigerant side of the water-fluorine heat exchanger 20; the flow detection device is electrically connected to the controller, and the controller is configured to judge that the water-fluorine heat exchanger 20 is leaking when the flow on the water side and / or refrigerant side of the water-fluorine heat exchanger 20 is less than or equal to a flow threshold, control the first electronic expansion valve 25 and the second electronic expansion valve 26 to close, and control the drain valve 29 to open.
[0067] In the embodiment of the present disclosure, when the water-fluorine heat exchanger 20 leaks, the flow rate on the water side and / or the refrigerant side of the water-fluorine heat exchanger 20 will decrease. When the flow detection device detects that the flow rate on the water side and / or the refrigerant side of the water-fluorine heat exchanger is less than or equal to the flow threshold, it indicates that the water-fluorine heat exchanger 20 is leaking. The controller controls the first electronic expansion valve 25 and the second electronic expansion valve 26 to be closed to prevent the refrigerant and water on the refrigerant side from flowing into the outdoor unit 30, and at the same time controls the drain valve 29 to open to drain the water on the water side. In this way, it is possible to timely determine whether the water-fluorine heat exchanger 20 is leaking, and it can be handled quickly to prevent the entire heat exchange system from being damaged due to the leakage of the water-fluorine heat exchanger 20.
[0068] Optionally, the first four-way valve 13 and the second four-way valve 14 are electrically connected to the controller, and the controller is configured to control the refrigerant flow direction in the first four-way valve 13 and the second four-way valve 14 according to the leakage information of the water-fluorine heat exchanger 20, so that the heat exchange system switches between heating and cooling modes.
[0069] In the disclosed embodiment, the configuration of first four-way valve 13 and second four-way valve 14 enables the heat exchange system to switch between cooling and heating modes. When the detection device detects a leak in water-fluorine heat exchanger 20, the flow of refrigerant within first four-way valve 13 and second four-way valve 14 is controlled to switch the heat exchange system mode, adjusting the pressure on the water and refrigerant sides to prevent water from flowing into the refrigerant system.
[0070] Optionally, when the first pipeline 21 is provided with a first electronic expansion valve 25 and the second pipeline 22 is provided with a second electronic expansion valve 26, the first four-way valve 13 is electrically connected to the controller, and the controller is configured to control the first four-way valve 13 to close and control the second four-way valve 14 to operate when the water-fluorine heat exchanger 20 leaks, so that the heat exchange system switches to indoor heat exchanger cooling or heating.
[0071] In the disclosed embodiment, when the water-fluorine heat exchanger 20 leaks, the first four-way valve 13 closes, preventing the heat exchange system from supplying refrigerant to the water-fluorine heat exchanger 20. Simultaneously, the second four-way valve 14 is controlled to operate, switching the connected ports to allow the indoor heat exchanger to cool or heat. This ensures that the pressure in the outdoor unit 30 is higher than that in the water-fluorine heat exchanger 20, regardless of whether the indoor heat exchanger is cooling or heating. This prevents refrigerant or water from the water-fluorine heat exchanger 20 from flowing to the outdoor unit 30.
[0072] In other optional embodiments, such as Figure 3 、 Figure 4 and Figure 5 As shown, the heat exchange system also includes a first valve 27 and a second valve 28. The first valve 27 is arranged on the third pipeline 23, and the first valve 27 is used to control the connection or disconnection between the third pipeline 23 and the water side of the water-fluorine heat exchanger 20; the second valve 28 is arranged on the fourth pipeline 24, and the second valve 28 is used to control the connection or disconnection between the fourth pipeline 24 and the water side of the water-fluorine heat exchanger 20.
[0073] In the disclosed embodiment, valves are provided at the inlet and outlet of the water side of the water-fluorine heat exchanger 20. The first valve 27 can control the on-off of the water inlet on the water side, and the second valve 28 can control the on-off of the outlet on the water side. When the water-fluorine heat exchanger 20 leaks, the first valve 27 and the second valve 28 are closed, which can prevent water from continuing to enter the water side. Moreover, after the water side is disconnected from the external water circulation pipeline, the water side of the water-fluorine heat exchanger 20 has no external power and the pressure is reduced. If there is refrigerant flowing on the refrigerant side, the high pressure can prevent water from flowing into the refrigerant side. If the refrigerant side is closed, it can also prevent water from flowing into other components along the refrigerant side. In this way, the water on the water side of the water-fluorine heat exchanger 20 cannot flow to other components, causing damage to the entire heat exchange system. In this way, when a leak occurs, only two valves need to be closed, and other components will not be damaged. There is no need to replace all the equipment and ceilings of the heat exchange system, which reduces maintenance costs and protects the property safety of users.
[0074] Optionally, the first valve 27 is a ball valve.
[0075] Optionally, the second valve 28 is a ball valve.
[0076] Optionally, when the first pipeline 21 of the heat exchange system is provided with a first electronic expansion valve 25, the third pipeline 23 is provided with a first valve 27, the fourth pipeline 24 is provided with a second valve 28, and the water side of the water-fluorine heat exchanger 20 and / or the third pipeline 23 is provided with a drain valve 29, the controller is electrically connected to the detection device, the first valve 27, the second valve 28, the first electronic expansion valve 25, and the drain valve 29, and the controller is configured to control the opening and closing of the first valve 27, the second valve 28, the first electronic expansion valve 25, and the drain valve 29 according to the leakage information of the water-fluorine heat exchanger 20. Specifically, when the water-fluorine heat exchanger 20 leaks, the controller controls the first valve 27, the second valve 28, and the first electronic expansion valve 25 to close, and controls the drain valve 29 to open.
[0077] In the embodiment of the present disclosure, the detection device can monitor the leakage information of the water-fluorine heat exchanger 20. When the leakage information of the water-fluorine heat exchanger 20 is abnormal, such as a leakage occurs, the controller controls the opening and closing of the first valve 27, the second valve 28, the first electronic expansion valve 25 and the drain valve 29, and can quickly deal with the leakage of the water-fluorine heat exchanger 20 without damaging other components. There is no need to replace all equipment and ceilings of the heat exchange system, which reduces maintenance costs and protects the property safety of users.
[0078] Optionally, when the detection device includes a first pressure sensor, the first pressure sensor is arranged on the refrigerant side of the water-fluorine heat exchanger 20, and is used to detect the pressure on the refrigerant side of the water-fluorine heat exchanger 20, and the leakage information includes the pressure on the refrigerant side of the water-fluorine heat exchanger 20; the first pressure sensor is electrically connected to the controller, and the controller is configured to judge that the water-fluorine heat exchanger 20 is leaking when the pressure on the refrigerant side of the water-fluorine heat exchanger 20 is less than the pressure threshold, control the first valve 27, the second valve 28 and the first electronic expansion valve 25 to close, and control the drain valve 29 to open.
[0079] In the embodiment of the present disclosure, when the water-fluorine heat exchanger 20 leaks, the amount of refrigerant on the refrigerant side decreases, the pressure on the refrigerant side also drops, and the leakage will cause a significant pressure change. Therefore, the pressure on the refrigerant side is detected in real time by a first pressure sensor on the refrigerant side of the water-fluorine heat exchanger 20. When the pressure on the refrigerant side is less than the pressure threshold, the controller controls the first valve 27 and the second valve 28 to close, so that water no longer flows in and out of the water side. At the same time, the drain valve 29 is controlled to open to discharge the water on the water side, and the first electronic expansion valve 25 is controlled to close to prevent the refrigerant and water on the refrigerant side from flowing into the outdoor unit 30. In this way, it is possible to timely determine whether the water-fluorine heat exchanger 20 is leaking, and it can be handled quickly to prevent the entire heat exchange system from being damaged due to the leakage of the water-fluorine heat exchanger 20.
[0080] Optionally, when the detection device includes a second pressure sensor, the second pressure sensor is arranged on the water side of the water-fluorine heat exchanger 20, and is used to detect the pressure on the water side of the water-fluorine heat exchanger 20, and the leakage information includes detecting the pressure on the water side of the water-fluorine heat exchanger 20; the second pressure sensor is electrically connected to the controller, and the controller is configured to judge that the water-fluorine heat exchanger 20 is leaking when the water pressure of the water-fluorine heat exchanger 20 is less than the initial water injection pressure, control the first valve 27, the second valve 28 and the first electronic expansion valve 25 to close, and control the drain valve 29 to open.
[0081] In the embodiment of the present disclosure, when the water-fluorine heat exchanger 20 leaks, the water on the water side of the water-fluorine heat exchanger 20 will also decrease, which will cause the pressure on the water side to also decrease. The second pressure sensor can detect the pressure on the water side of the water-fluorine heat exchanger 20 in real time. When the pressure on the water side is less than the initial water injection pressure, it means that the water-fluorine heat exchanger 20 is leaking. At this time, the controller controls the first valve 27 and the second valve 28 to close, so that water no longer enters or exits the water side. At the same time, the controller controls the drain valve 29 to open to discharge the water on the water side, and controls the first electronic expansion valve 25 to close to prevent the refrigerant and water on the refrigerant side from flowing into the outdoor unit 30. In this way, it is possible to timely determine whether the water-fluorine heat exchanger 20 is leaking, and it can be quickly handled to prevent the entire heat exchange system from being damaged due to the leakage of the water-fluorine heat exchanger 20.
[0082] Optionally, when the detection device includes a flow detection device, the flow detection device is used to detect the flow on the water side and / or refrigerant side of the water-fluorine heat exchanger 20, and the leakage information includes the flow on the water side and / or refrigerant side of the water-fluorine heat exchanger 20; the flow detection device is electrically connected to the controller, and the controller is configured to judge that the water-fluorine heat exchanger 20 is leaking when the flow on the water side and / or refrigerant side of the water-fluorine heat exchanger 20 is less than or equal to the flow threshold, control the first valve 27, the second valve 28 and the first electronic expansion valve 25 to close, and control the drain valve 29 to open.
[0083] In the embodiment of the present disclosure, when the water-fluorine heat exchanger 20 leaks, the flow rate on the water side and / or the refrigerant side of the water-fluorine heat exchanger 20 will decrease. When the flow detection device detects that the flow rate on the water side and / or the refrigerant side of the water-fluorine heat exchanger is less than or equal to the flow threshold, it indicates that the water-fluorine heat exchanger 20 is leaking. The controller controls the first electronic expansion valve 25 and the second electronic expansion valve 26 to be closed to prevent the refrigerant and water on the refrigerant side from flowing into the outdoor unit 30, and at the same time controls the drain valve 29 to open to drain the water on the water side. In this way, it is possible to timely determine whether the water-fluorine heat exchanger 20 is leaking, and it can be handled quickly to prevent the entire heat exchange system from being damaged due to the leakage of the water-fluorine heat exchanger 20.
[0084] Optionally, when the heat exchange system includes a first valve 27, a second valve 28 and a first electronic expansion valve 25, the first four-way valve 13 and the controller are electrically connected, and the controller is configured to control the first port of the first four-way valve 13 to be connected to the second port of the first four-way valve 13, and the third port of the first four-way valve 13 to be connected to the third port of the first four-way valve 13 when the water-fluorine heat exchanger 20 leaks.
[0085] In the disclosed embodiment, when the water-fluorine heat exchanger 20 leaks, the controller controls the four ports of the first four-way valve 13 to communicate in the manner described above. This allows the high-temperature, high-pressure refrigerant flowing out of the compressor 10 to flow through the first four-way valve 13 to the refrigerant side of the water-fluorine heat exchanger 20. This ensures that the refrigerant pressure in the water-fluorine heat exchanger 20 is greater than the pressure on the water side, thereby preventing water on the water side from flowing into the refrigerant side. Furthermore, when the water-fluorine heat exchanger 20 leaks, both the first valve 27 and the second valve 28 are closed, thereby preventing refrigerant from leaking from the water side to the outside.
[0086] Alternatively, as Figure 3 As shown, the water circulation system also includes a water inlet pipe 53 and a water outlet pipe 54. The water inlet pipe 53 is connected between the water outlet on the water side of the water-fluorine heat exchanger 20 and the water inlet of the heat dissipation module 50; the water outlet pipe 54 is connected between the water inlet on the water side of the water-fluorine heat exchanger 20 and the water outlet of the heat dissipation module 50.
[0087] In the disclosed embodiment, the water circulation system includes the water side of the water-fluorine heat exchanger 20, the water inlet pipe 53, the heat dissipation module 50, and the water outlet pipe 54, which are arranged in this order. After heat exchange, the water on the water-fluorine heat exchanger 20 flows out to the water inlet pipe, then flows along the water inlet pipe 53 to the heat dissipation module 50, where it dissipates heat. It then flows into the water outlet pipe 54 and flows back along the water outlet pipe 54 to the water side of the water-fluorine heat exchanger 20.
[0088] Optionally, the water inlet pipeline 53 is provided with a water inlet stop valve 531 for controlling the connection and disconnection between the heat dissipation module 50 and the water outlet of the water-fluorine heat exchanger 20 .
[0089] Optionally, the water outlet pipeline 54 is provided with a water outlet stop valve 541 for controlling the connection and disconnection between the heat dissipation module 50 and the water inlet of the water-fluorine heat exchanger 20 .
[0090] Alternatively, as Figure 3 As shown, the water circulation system further includes a bypass pipeline 55 , which is connected between the water inlet pipeline 53 and the water outlet pipeline 54 ; the bypass pipeline 55 is provided with a bypass valve 551 for controlling the opening of the bypass pipeline 55 .
[0091] In the embodiment of the present disclosure, the bypass pipe 55 connects the water inlet pipe 53 and the water outlet pipe 54. When the bypass valve 551 is opened, the water in the water inlet pipe 53 may not flow into the heat dissipation module 50, but directly flow into the water outlet pipe 54. In this way, when the heat dissipation module 50 is not working, the water circulation system can be kept unobstructed, thereby ensuring the normal operation of the heat exchange system.
[0092] Optionally, there are multiple heat dissipation modules 50, and the multiple heat dissipation modules 50 are arranged in parallel between the water inlet pipeline 53 and the water outlet pipeline 54. The water circulation system further includes a water collector 51 and a water distributor 52. The water distributor 52 is connected between the outlet of the water inlet pipeline 53 and the multiple heat dissipation modules 50. The water distributor 52 is provided with multiple parallel water distribution ports. The inlet of each heat dissipation module 50 is connected to a water distribution port. The water distributor 52 can divert water in the water inlet pipeline 53 to each heat dissipation module 50. The water collector 51 is arranged between the outlet of the heat dissipation module 50 and the inlet of the water outlet pipeline 54. The water collector 51 is provided with multiple parallel water distribution ports. The outlet of each heat dissipation module 50 is connected to a water distribution port. The water collector 51 can collect the water after heat dissipation in the multiple heat dissipation modules 50 and flow it into the water outlet pipeline 54.
[0093] The arrangement of the bypass pipeline 55 and the bypass valve 551 can keep the water path of the water circulation pipeline unobstructed when the water collector 51 is closed.
[0094] Optionally, the water circulation pipeline also includes a water supply pipeline 56 and a water supply valve 561, one end of the water supply pipeline 56 is connected to the water outlet pipeline 54, and the other end of the water supply pipeline 56 is connected to the external water source; the water supply valve 561 is arranged on the water supply pipeline 56 to control the opening of the water supply pipeline 56.
[0095] In the disclosed embodiment, the water supply pipe 56 can add water to the water circulation pipe to avoid insufficient water in the water circulation system, which affects the heating and cooling effects. The water supply valve 561 can control the connection and disconnection between the water supply pipe 56 and the water outlet pipe 54.
[0096] Optionally, the water supply valve 561 is an automatic water supply valve 561 that can automatically adjust its opening.
[0097] Optionally, the external water source is tap water or a booster pump box.
[0098] Optionally, the water circulation system further includes a water pump 58 , which is provided in the water inlet pipe 53 or the water outlet pipe 54 and is used to drive water to flow in the water circulation system.
[0099] Optionally, the water circulation system also includes a water tank 57 and a filter 571. The water tank 57 is arranged in the water outlet pipe 54 and is located between one end of the water supply pipe 56 and the water inlet on the water side of the water-fluorine heat exchanger 20; the filter 571 is arranged in the water supply pipe 56 and / or the water outlet pipe 54 and is located between the water tank 57 and the water side of the water-fluorine heat exchanger 20.
[0100] In the disclosed embodiment, the water tank 57 can store water and maintain the water volume of the water circulation system. The filter 571 is arranged in the water supply pipe 56 and / or the water outlet pipe 54, so that the water in the water pipe can be filtered to ensure smooth flow.
[0101] Optionally, the filter 571 is a Y-type filter 571. When the fluid passes through the filter 571, solid particles are intercepted by the Y-type filter 571, thereby achieving purification of the fluid.
[0102] Optionally, the water circulation system further includes a stop valve 562 , which is provided at the outlet end of the water supply pipeline 56 and is used to close the water supply pipeline 56 .
[0103] Optionally, the water outlet pipe 54 is provided with a first drain valve 581 , which can drain the water in the water outlet pipe 54 .
[0104] Optionally, the water inlet pipe 53 is provided with a second drain valve 582 , which can drain the water in the water inlet pipe 53 .
[0105] Optionally, both the water inlet pipeline 53 and the water outlet pipeline 54 are provided with a water pressure gauge 583 , and the water pressure gauge 583 is used to detect the pressure of the water inlet pipeline 53 and the water outlet pipeline 54 .
[0106] Optionally, the heat exchange system also includes a fifth pipeline 32, a sixth pipeline 33, a first throttling device 341 and a heat exchange device 34, one end of the fifth pipeline 32 is connected to the outdoor unit 30, and the other end of the fifth pipeline 32 is connected to the indoor unit 40 and the refrigerant side of the water-fluorine heat exchanger 20; one end of the sixth pipeline 33 is connected to the fifth pipeline 32, and the other end of the sixth pipeline 33 is connected to the air inlet of the compressor 10; the first throttling device 341 is provided on the sixth pipeline 33; the heat exchange device 34 includes a first heat exchange part and a second heat exchange part, the first heat exchange part is connected to the fifth pipeline 32, the second heat exchange part is connected to the sixth pipeline 33, and is located downstream of the first throttling device 341.
[0107] In the disclosed embodiment, a heat exchange device 34 is provided between the outdoor unit 30 and the indoor unit 40. When the heat exchange system is cooling, part of the refrigerant flowing out of the outdoor unit 30 after throttling flows into the first heat exchange section, and the other part flows into the sixth pipe 33. The sixth pipe 33 is provided with a first throttling device 341. The refrigerant in the sixth pipe 33 is throttled by the first throttling device 341 and then flows into the second heat exchange section. In this way, the refrigerant in the second heat exchange section, which has been throttled and cooled, can exchange heat again with the refrigerant in the first heat exchange section. This allows the refrigerant flowing out of the outdoor unit 30 to be completely condensed and then flow into the indoor unit 40 for heat exchange and cooling. Similarly, when the heat exchange system is heating, the heat exchange device 34 can also further cool the refrigerant flowing out of the indoor unit 40 to improve the condensation effect, and then flow to the outdoor unit 30 for heat exchange.
[0108] Optionally, the heat exchange system further includes a second throttling device 31 , which is provided in the fifth pipeline 32 and is located between the heat exchange device 34 and the outdoor heat exchanger.
[0109] In the disclosed embodiment, the outdoor unit 30 and the heat exchange device 34 are provided with a second throttling device 31, so that the refrigerant flowing out of the outdoor unit 30 is throttled by the second throttling device 31 and then flows into the heat exchange device 34, making the throttling of the refrigerant more uniform and the condensation effect better.
[0110] Optionally, the heat exchange system also includes a liquid inlet pipeline 41 and an air outlet pipeline 42, one end of the liquid inlet pipeline 41 is connected to the outlet of the first pipeline 21 and the outlet of the fifth pipeline 32, and the other end of the liquid inlet pipeline 41 is connected to the inlet of the indoor unit 40; one end of the air outlet pipeline 42 is connected to the outlet of the indoor unit 40, and the other end of the air outlet pipeline 42 is connected to the compressor 10; wherein, the number of indoor units 40 is multiple, and the multiple indoor units 40 are arranged in parallel between the liquid inlet pipeline 41 and the air outlet pipeline 42.
[0111] In the embodiment of the present disclosure, a plurality of indoor units 40 are arranged in parallel, so that each indoor unit 40 is independently controlled and can independently adjust the temperature of the space in which it is located.
[0112] Optionally, the heat exchange system also includes a liquid pipe stop valve 43 and a gas pipe stop valve 44. The liquid pipe stop valve 43 is arranged on the liquid inlet pipeline 41 to control the on-off of the outdoor unit 30 and the indoor unit 40; the gas pipe stop valve 44 is arranged on the gas outlet pipeline 42 to control the on-off of the compressor 10 and the indoor unit 40.
[0113] In the embodiment of the present disclosure, the liquid pipe stop valve 43 and the gas pipe stop valve 44 can control the connection and disconnection of the indoor unit 40 with the outdoor unit 30 and the compressor 10, thereby realizing the operation or stop of the indoor unit 40.
[0114] Optionally, the indoor unit 40 and the water-fluorine heat exchanger 20 are arranged in parallel between the outdoor unit 30 and the compressor 10 .
[0115] This enables the indoor unit 40 and the heat dissipation module 50 to work independently, thereby achieving multi-directional heating or cooling.
[0116] Optionally, the indoor unit 40 is arranged in the upper middle part of the room, and the heat dissipation module 50 is arranged in the lower middle part of the room, so that the temperature of the entire room can be adjusted and the user's use effect can be improved.
[0117] Optionally, the heat dissipation module 50 includes floor heating, which is laid under the floor and can achieve heating.
[0118] Optionally, the heat dissipation module 50 includes a water heater, which can be used to provide hot water.
[0119] Optionally, the indoor heat exchanger is an air-cooled heat exchanger, which is located in the upper part of the room and is used for heating or cooling.
[0120] Optionally, the indoor heat exchanger is a wall-mounted air-conditioning indoor unit 40, a cabinet-type air-conditioning indoor unit 40, an embedded air-conditioning indoor unit 40, a ceiling-mounted air-conditioning indoor unit 40, or a window-type air-conditioning indoor unit 40.
[0121] Optionally, the heat exchange system also includes a liquid storage tank, which is located between the indoor heat exchanger and the first throttling device 341. The refrigerant after heat exchange in the indoor heat exchanger is throttled by the third throttling device and flows into the liquid storage tank, and then flows from the liquid storage tank to the first throttling device 341. The refrigerant flowing out of the liquid storage tank merges with the refrigerant after throttling by the second throttling device 31, and then flows to the first throttling device 341.
[0122] In the disclosed embodiment, the liquid storage tank can store the refrigerant in the heat exchange system, reduce the load of the indoor heat exchanger, and adjust the flow of the refrigerant between the indoor heat exchanger and the outdoor heat exchanger to adapt to the load changes of the indoor heat exchanger, and maintain the pressure balance between the indoor heat exchanger and the outdoor heat exchanger to ensure the normal operation of the indoor heat exchanger.
[0123] Optionally, the heat exchange system further includes a gas-liquid separator 12, which is located between the air inlet of the compressor 10 and the fourth port of the four-way valve. This allows the gaseous and liquid refrigerants in the pipeline to be separated when the refrigerant circulates through the heat exchange system and returns to the compressor 10, ensuring that only the gaseous refrigerant enters the compressor 10. The liquid refrigerant is temporarily stored to prevent a large amount of liquid refrigerant from entering the compressor 10, thereby avoiding liquid hammer and protecting the compressor 10 from damage. Liquid hammer refers to liquid refrigerant entering the compressor 10, which may cause impact and damage to the components of the compressor 10.
[0124] Optionally, the heat exchange system further includes an oil separator 11 , which is provided in the exhaust pipe of the compressor 10 and is located between the exhaust port of the compressor 10 and the first port of the four-way valve.
[0125] In the disclosed embodiment, oil separator 11 separates the oil and refrigerant in compressor 10. During operation of compressor 10, some lubricating oil is compressed along with the refrigerant and enters the heat exchange system. Oil separator 11 separates the oil from the refrigerant through various methods, such as centrifugation, filtration, or gravity settling.
[0126] Optionally, the heat exchange system also includes an oil return pipeline, which connects the compressor 10 and the oil separator. The lubricating oil separated by the oil separator 11 can flow back into the compressor 10 through the oil return pipeline, ensuring that the compressor 10 has sufficient lubricating oil, thereby avoiding mechanical failure caused by lack of oil.
[0127] Optionally, the heat exchange system further includes a prompting device, which is electrically connected to the controller, and the controller controls the prompting device to operate when the water-fluorine heat exchanger 20 leaks, so that the user can be prompted to perform maintenance in a timely manner.
[0128] Optionally, the prompt device may be an indicator light, a prompt sound, etc.
[0129] Optionally, the prompt device includes a wired controller, which is electrically connected to the controller, and the controller can control the wired controller to issue a prompt.
[0130] In one specific embodiment, the heat exchange system includes a first electronic expansion valve 25 and a second electronic expansion valve 26. The first electronic expansion valve 25 is provided in the first pipeline 21, the second electronic expansion valve 26 is provided in the second pipeline 22, and the third pipeline 23 is provided with a drain valve 29. In this way, when the water-fluorine heat exchanger 20 leaks, the inlet and outlet on the refrigerant side of the water-fluorine heat exchanger 20 are closed and the water on the water side is drained, which can prevent the water on the water side from flowing through the refrigerant side to the outdoor unit 30 and other components.
[0131] In another specific embodiment, the heat exchange system includes a first valve 27 and a second valve 28. The first valve 27 is provided on the third pipeline 23, and the second valve 28 is provided on the fourth pipeline 24. The first pipeline 21 is provided with a first electronic expansion valve 25, and the third pipeline 23 is further provided with a drain valve 29. In this way, when the water-fluorine heat exchanger 20 leaks, the inlet and outlet on the water side of the water-fluorine heat exchanger 20 are closed and the water on the water side is drained. At the same time, the pressure on the refrigerant side is greater than the pressure on the water side, which can prevent the water on the water side from flowing through the refrigerant side to the outdoor unit 30 and other components.
[0132] In another specific embodiment, Figure 6 and Figure 7As shown, the heat exchange system includes a first electronic expansion valve 25, a second electronic expansion valve 26, a first valve 27, and a second valve 28. The third pipeline 23 is also provided with a drain valve 29. In this way, when the water-fluorine heat exchanger 20 leaks, the inlet and outlet on the refrigerant side and the inlet and outlet on the water side are both closed, and the water on the water side is drained, which can completely seal the water-fluorine heat exchanger 20 and prevent water from flowing into components such as the outdoor unit 30.
[0133] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A heat exchange system, characterized in that: It includes a water circulation system and a refrigerant circulation system. The water circulation system includes a heat dissipation module, and the refrigerant circulation system includes: Outdoor unit; A water-fluorine heat exchanger, wherein the water side of the water-fluorine heat exchanger is connected to the heat dissipation module via a water circulation pipeline, and the refrigerant side of the water-fluorine heat exchanger is connected to the outdoor unit via a refrigerant pipeline. The refrigerant pipeline includes a first pipeline and a second pipeline. The first pipeline is connected to one end of the refrigerant side of the water-fluorine heat exchanger, and the second pipeline is connected to the other end of the refrigerant side of the water-fluorine heat exchanger. a first electronic expansion valve, provided in the first pipeline, for controlling the connection or disconnection between the first pipeline and the refrigerant side of the water-fluorine heat exchanger; The second electronic expansion valve is provided in the second pipeline and is used to control the connection or disconnection between the second pipeline and the refrigerant side of the water-fluorine heat exchanger.
2. The heat exchange system according to claim 1, characterized in that: The water circulation pipeline includes: The third pipeline is connected to the water inlet on the water side of the water-fluorine heat exchanger. The third pipeline and / or the water side of the water-fluorine heat exchanger is provided with a drain outlet, which is used to discharge the water on the water side of the water-fluorine heat exchanger to the outside; The drain valve is installed at the drain outlet and is used to open or close the drain outlet.
3. The heat exchange system according to claim 2, characterized in that: Also includes: Detection device, used to detect whether the water-fluorine heat exchanger is leaking; The controller is electrically connected to the detection device, the first electronic expansion valve, the second electronic expansion valve and the drain valve. The controller is configured to control the first electronic expansion valve and the second electronic expansion valve to close and control the drain valve to open when the water-fluorine heat exchanger leaks.
4. The heat exchange system according to claim 3, characterized in that: The detection device includes: A first pressure sensor is provided on the refrigerant side of the water-fluorine heat exchanger and is used to detect the pressure on the refrigerant side of the water-fluorine heat exchanger; The first pressure sensor is electrically connected to the controller, and the controller is configured to determine that the water-fluorine heat exchanger is leaking when the pressure on the refrigerant side of the water-fluorine heat exchanger is less than a pressure threshold, control the first electronic expansion valve and the second electronic expansion valve to close, and control the drain valve to open.
5. The heat exchange system according to claim 3, characterized in that: The detection device includes: A second pressure sensor is provided on the water side of the water-fluorine heat exchanger and is used to detect the pressure on the water side of the water-fluorine heat exchanger; The second pressure sensor is electrically connected to the controller, and the controller is configured to determine that the water-fluorine heat exchanger is leaking when the water pressure in the water-fluorine heat exchanger is less than the initial water injection pressure, control the first electronic expansion valve and the second electronic expansion valve to close, and control the drain valve to open.
6. The heat exchange system according to claim 3, characterized in that: The detection device includes: Flow detection device, used to detect the flow rate on the water side and / or refrigerant side of the water-fluorine heat exchanger; The flow detection device is electrically connected to the controller, and the controller is configured to determine that the water-fluorine heat exchanger is leaking when the flow on the water side and / or refrigerant side of the water-fluorine heat exchanger is less than or equal to a flow threshold, and to control the first electronic expansion valve and the second electronic expansion valve to close, and to control the drain valve to open.
7. The heat exchange system according to claim 3, characterized in that: The refrigerant circulation system also includes: compressor; Indoor unit; a first four-way valve, wherein a first port of the first four-way valve is connected to the exhaust port of the compressor, a second port of the first four-way valve is connected to the refrigerant side, a third port of the first four-way valve is connected to the outdoor unit, and a fourth port of the first four-way valve is connected to the air inlet of the compressor; a second four-way valve, wherein a first port of the second four-way valve is connected to the exhaust port of the compressor, a second port of the second four-way valve is connected to the indoor unit, a third port of the second four-way valve is connected to the outdoor unit, and a fourth port of the second four-way valve is connected to the air inlet of the compressor; Among them, the first four-way valve is electrically connected to the controller, and the controller is configured to control the first four-way valve to close and the second four-way valve to operate when the water-fluorine heat exchanger leaks, so that the heat exchange system switches to cooling or heating of the indoor unit.
8. The heat exchange system according to claim 7, characterized in that: Also includes: A fifth pipe, one end of which is connected to the outdoor unit, and the other end of which is connected to the indoor unit and the refrigerant side of the water-fluorine heat exchanger; a sixth pipeline, one end of which is connected to the fifth pipeline and the other end of which is connected to the air inlet of the compressor; a first throttling device, provided on the sixth pipeline; The heat exchange device includes a first heat exchange part and a second heat exchange part. The first heat exchange part is connected to the fifth pipeline, and the second heat exchange part is connected to the sixth pipeline and is located downstream of the throttling device.
9. The heat exchange system according to claim 8, characterized in that: Also includes: a liquid inlet pipe, one end of which is connected to the other end of the fifth pipe, and the other end of which is connected to the indoor unit; An air outlet pipe, one end of which is connected to the indoor unit and the other end of which is connected to the compressor. There are multiple indoor units, and the multiple indoor units are arranged in parallel between the liquid inlet pipe and the air outlet pipe; Liquid pipe stop valve, installed in the liquid inlet pipeline, used to control the on and off of the outdoor unit and the indoor unit; The gas pipe stop valve is installed in the gas outlet pipe and is used to control the on and off of the compressor and the indoor unit.
10. The heat exchange system according to any one of claims 3 to 9, characterized in that: Also includes: The prompt device is electrically connected to the controller, and the controller is configured to control the prompt device to work when the water-fluorine heat exchanger leaks.