Heat exchange system and air treatment equipment

Abstract

The utility model discloses a heat exchange system and air handling equipment, the heat exchange system comprises: a heat exchanger, the heat exchanger is internally provided with a heat exchange flow path, a water inlet channel and a water outlet channel, the water inlet channel and the water outlet channel are communicated with the heat exchange flow path, and the heat exchanger is provided with a water inlet communicated with the water inlet channel and a water outlet communicated with the water outlet channel; the water inlet pipe assembly is communicated with the water inlet, the water outlet pipe assembly is communicated with the water outlet, at least one of the partial heat exchanger forming the water inlet channel, the partial heat exchanger forming the water outlet channel, the water inlet pipe assembly and the water outlet pipe assembly is constructed into an expansion structure, and the expansion structure is connected with an anti-explosion inflating valve; the hose is arranged in the expansion structure, and at least one end of the hose is connected with the anti-explosion inflating valve. According to the heat exchange system, the problem that water needs to be drained when the heat exchange system is not used at low temperature is solved, and the arrangement of an expansion tank is omitted while the internal pressure is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of air processing equipment, and more specifically, to a heat exchange system and air processing equipment. Background Art

[0002] In the related art, when the heat exchange system is at a low temperature and not in use, the heat exchange system needs to be manually drained by the user. Manual drainage is cumbersome and there is a risk of freezing of the heat exchange system due to failure to drain the water in time. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a heat exchange system, which solves the problem of needing to drain water when not in use at low temperature, and eliminates the need for an expansion tank while ensuring internal pressure.

[0004] Another object of the present invention is to provide an air handling device having the above heat exchange system.

[0005] According to the heat exchange system of the embodiment of the utility model, it includes: a heat exchanger, wherein the heat exchanger has a heat exchange flow path and a water inlet channel and a water outlet channel connected to the heat exchange flow path, the heat exchanger has a water inlet connected to the water inlet channel and a water outlet connected to the water outlet channel; a water inlet pipe assembly and a water outlet pipe assembly, the water inlet pipe assembly is connected to the water inlet, and the water outlet pipe assembly is connected to the water outlet, wherein the part of the heat exchanger forming the water inlet channel, the part of the heat exchanger forming the water outlet channel, the water inlet pipe assembly and at least one of the water outlet pipe assembly are constructed as an expansion structure, and the expansion structure is connected to an explosion-proof valve; a hose, the hose is arranged in the expansion structure, and at least one end of the hose is connected to the explosion-proof valve.

[0006] According to the heat exchange system of the embodiment of the utility model, the water inlet pipe assembly is connected to the water inlet of the heat exchanger, the water outlet pipe assembly is connected to the water outlet of the heat exchanger, and at least one of the partial heat exchanger forming the water inlet channel, the partial heat exchanger forming the water outlet channel, the water inlet pipe assembly and the water outlet pipe assembly is constructed as an expansion structure, the expansion structure is connected with an explosion-proof valve, the hose is arranged in the expansion structure, and at least one end of the hose is connected to the explosion-proof valve, so that the contraction and expansion of the hose can buffer the pressure change in the heat exchange system, prevent the pressure of the heat exchange system from rising or falling too fast, and save the need to set up structures such as expansion tanks, which is conducive to reducing production costs. When the heat exchange system is at a low temperature and not in use, the hose can be further compressed by contracting or discharging the gas in the hose, effectively absorbing the expansion volume of the water in the heat exchange system, avoiding the heat exchange system from being frozen, and solving the problem of the need to drain water when the heat exchange system is at a low temperature and not in use.

[0007] In addition, the heat exchange system according to the above embodiment of the utility model may also have the following additional technical features:

[0008] According to the heat exchange system of some embodiments of the present invention, the explosion-proof valve is multiple and includes a first explosion-proof valve and a second explosion-proof valve, and the two ends of the hose in the length direction are respectively connected to the first explosion-proof valve and the second explosion-proof valve.

[0009] According to some embodiments of the present invention, the hose extends along the length direction of the expansion structure.

[0010] According to some embodiments of the utility model, a mounting hole is provided on the expansion structure, and the explosion-proof valve comprises: a main body portion, which is connected to the hose; a connecting portion, which is connected to the main body portion, and an end of the connecting portion away from the main body portion is passed through the mounting hole, and the main body portion abuts against the inner wall of the expansion structure, and the heat exchange system also comprises a fixing member, which is threadedly connected to an end of the connecting portion away from the main body portion and abuts against the outer wall of the expansion structure.

[0011] According to some embodiments of the present invention, the heat exchange system further includes: a seal, wherein the seal is located between the inner wall of the expansion structure and the main body, and the seal is arranged around the connecting portion.

[0012] According to some embodiments of the present invention, the sum of the volumes in the hose is A, the total volume of the water inlet channel, the water outlet channel, the heat exchange flow path, the water inlet pipe assembly and the water outlet pipe assembly is B, and satisfies: A≥B / 10.

[0013] According to some embodiments of the present utility model, the heat exchange system also includes: a safety valve, which is arranged on the water inlet pipe assembly or the water outlet pipe assembly, and the pressure relief pressure of the hose is greater than the pressure relief pressure of the safety valve and less than the design pressure of the water inlet pipe assembly, the water outlet pipe assembly or the heat exchanger.

[0014] According to some embodiments of the utility model, when the part of the heat exchanger forming the water inlet channel is configured as an expansion structure, the hose is arranged in the water inlet channel, and the explosion-proof valve is connected to the side of the heat exchanger facing away from the water inlet; and / or, when the part of the heat exchanger forming the water outlet channel is configured as an expansion structure, the hose is arranged in the water outlet channel, and the explosion-proof valve is connected to the side of the heat exchanger facing away from the water outlet.

[0015] According to some embodiments of the utility model, when the water inlet pipe assembly is configured as an expansion structure, the water inlet pipe assembly includes a first water inlet pipe and a second water inlet pipe, and the heat exchange system also includes: a water pump, the inlet of the water pump is connected to the first water inlet pipe, and the two ends of the second water inlet pipe in the length direction are respectively connected to the outlet of the water pump and the water inlet, and at least one of the first water inlet pipe and the second water inlet pipe is configured as the expansion structure.

[0016] The air handling device according to the embodiment of the utility model includes the heat exchange system according to the embodiment of the utility model.

[0017] According to the air handling equipment of the embodiment of the utility model, the water inlet pipe assembly is connected to the water inlet of the heat exchanger, and the water outlet pipe assembly is connected to the water outlet of the heat exchanger. At least one of the partial heat exchanger forming the water inlet channel, the partial heat exchanger forming the water outlet channel, the water inlet pipe assembly and the water outlet pipe assembly is constructed as an expansion structure, and an explosion-proof valve is connected to the expansion structure. The hose is arranged in the expansion structure, and at least one end of the hose is connected to the explosion-proof valve, so that the contraction and expansion of the hose can buffer the pressure change in the heat exchange system, prevent the pressure of the heat exchange system from rising or falling too fast, and eliminate the need to set up structures such as expansion tanks, which is conducive to reducing production costs. When the heat exchange system is at a low temperature and not in use, the hose can be further compressed by contracting or discharging the gas in the hose, effectively absorbing the expansion volume of the water in the heat exchange system, avoiding the problem of the heat exchange system being frozen, and solving the problem of the need to drain water when the heat exchange system is at a low temperature and not in use.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic structural diagram of a heat exchange system according to an embodiment of the utility model;

[0021] Figure 2 is an exploded diagram of a heat exchange system according to an embodiment of the utility model;

[0022] Figure 3 is a front view of a heat exchange system according to an embodiment of the utility model;

[0023] Figure 4 yes Figure 3 A cross-sectional view along the direction indicated by line AA;

[0024] Figure 5 yes Figure 4 The middle circle shows the enlarged structural schematic diagram of B;

[0025] Figure 6 yes Figure 3 A cross-sectional view along the CC line;

[0026] Figure 7 is a top view of a heat exchange system according to an embodiment of the utility model;

[0027] Figure 8 is a schematic structural diagram of a heat exchanger of a heat exchange system according to an embodiment of the utility model;

[0028] Fig. 9 is a front view of a heat exchanger of a heat exchange system according to an embodiment of the utility model;

[0029] Fig.10 yes Fig. 9 A cross-sectional view along the direction indicated by line DD;

[0030] Fig.11 is a structural schematic diagram of a second water inlet pipe of a heat exchange system according to an embodiment of the utility model;

[0031] Fig.12 is a front view of a second water inlet pipe of a heat exchange system according to an embodiment of the utility model;

[0032] Fig.13 yes Fig.12 A cross-sectional view along the direction indicated by line EE;

[0033] Fig.14 is a schematic structural diagram of a water outlet pipe assembly of a heat exchange system according to an embodiment of the utility model;

[0034] Fig.15 It is a left view of the water outlet pipe assembly of the heat exchange system according to an embodiment of the utility model;

[0035] Fig.16 yes Fig.15 A cross-sectional view along the direction indicated by line FF;

[0036] Fig.17 is a schematic structural diagram of a first water inlet pipe of a heat exchange system according to an embodiment of the utility model;

[0037] Fig.18 It is a left view of the first water inlet pipe of the heat exchange system according to an embodiment of the utility model;

[0038] Fig.19 yes Fig.18 Cross-sectional view along line GG.

[0039] Reference numerals:

[0040] 100. Heat exchange system;

[0041] 10. heat exchanger; 11. heat exchange flow path; 12. water inlet channel; 13. water outlet channel; 14. fluorine inlet port; 15. fluorine outlet port; 101. first end plate; 102. second end plate; 103. plate; 121. water inlet port; 131. water outlet port;

[0042] 21. water inlet pipe assembly; 22. water outlet pipe assembly; 211. first water inlet pipe; 212. second water inlet pipe;

[0043] 30. explosion-proof valve; 31. first explosion-proof valve; 32. second explosion-proof valve; 301. main body; 302. connecting part;

[0044] 40. Hose;

[0045] 50. Mounting hole;

[0046] 61. Fixing parts; 62. Sealing parts; 63. Safety valve; 64. Water pump; 65. Detection device; 66. Exhaust valve; 641. Inlet; 642. Outlet. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, the first feature "above", "above" and "above" the second feature may include the first feature being directly above and diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature.

[0050] The heat exchange system 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0051] Reference Figure 1-Figure 19 As shown, the heat exchange system 100 according to the embodiment of the present utility model may include: a heat exchanger 10 , a water inlet pipe assembly 21 and a water outlet pipe assembly 22 .

[0052] Specifically, the heat exchanger 10 has a heat exchange flow path 11, a water inlet channel 12 and a water outlet channel 13, the water inlet channel 12 and the water outlet channel 13 are connected to the heat exchange flow path 11, the heat exchanger 10 has a water inlet 121 and a water outlet 131, the water inlet 121 is connected to the water inlet channel 12, the water outlet 131 is connected to the water outlet channel 13, the water inlet pipe assembly 21 is connected to the water inlet 121, and the water outlet pipe assembly 22 is connected to the water outlet 131. When the heat exchange system 100 is working, water can enter the water inlet pipe assembly 21, and flow into the heat exchange flow path 11 from the water inlet 121 through the water inlet channel 12, and the water is heat exchanged by the heat exchanger 10. The water after heat exchange flows out from the water outlet 131 to the water outlet pipe assembly 22 through the water outlet channel 13, meeting the heat exchange demand of water.

[0053] In some related technologies, drain valves are respectively provided on the water inlet pipe assembly and the water outlet pipe assembly. When the heat exchange system is at a low temperature and not in use, the user is required to manually open the drain valve to drain the water. Manual drainage is cumbersome and there is a risk of freezing of the heat exchange system due to failure to drain the water in time.

[0054] In other related technologies, a mechanical low-temperature drain valve is installed at the lowest point of the heat exchange system. When the heat exchange system is at a low temperature and not in use, the heat exchange system automatically drains water through the mechanical low-temperature drain valve. However, the thermal sensitive components of the mechanical low-temperature drain valve are prone to failure, and there is a risk of water leakage, and after draining the water, it needs to be refilled with water, which is a cumbersome process.

[0055] Therefore, in the present invention, the heat exchange system 100 further includes a hose 40, and at least one of the part of the heat exchanger 10 forming the water inlet channel 12, the part of the heat exchanger 10 forming the water outlet channel 13, the water inlet pipe assembly 21 and the water outlet pipe assembly 22 is configured as an expansion structure, and the expansion structure is connected with an explosion-proof valve 30, and the hose 40 is arranged in the expansion structure, and at least one end of the hose 40 is connected to the explosion-proof valve 30. Through the explosion-proof valve 30, gas can be filled and discharged into the hose 40, which has a pressure relief function, and due to the elastic effect of the hose 40, it can withstand a certain pressure, so that the contraction and expansion of the hose 40 can buffer the pressure change in the heat exchange system 100, and prevent the pressure of the heat exchange system 100 from rising or falling too fast, so that the expansion tank and other structures can be omitted in the heat exchange system 100, solve the problem of space occupation of the expansion tank and other structures, can reduce production costs, and avoid the problem of failure caused by freezing of the expansion tank and other structures, effectively ensuring the normal operation of the heat exchange system 100.

[0056] At the same time, when the heat exchange system 100 is at a low temperature and not in use, the hose 40 can be further compressed by contracting or discharging the gas in the hose 40, effectively absorbing the expansion volume of the frozen water in the heat exchanger 10 system, avoiding the heat exchange system 100 from being damaged by freezing, and solving the problem of the need to drain water when the heat exchange system 100 is at a low temperature and not in use, which is beneficial to improving the user experience, and after the gas in the hose 40 is discharged, the gas can be refilled to restore the anti-freeze and anti-expansion functions of the hose 40.

[0057] It can be understood that at least one of the part of the heat exchanger 10 forming the water inlet channel 12, the part of the heat exchanger 10 forming the water outlet channel 13, the water inlet pipe assembly 21 and the water outlet pipe assembly 22 is configured as an expansion structure. In other words, the part of the heat exchanger 10 forming the water inlet channel 12, the part of the heat exchanger 10 forming the water outlet channel 13, the water inlet pipe assembly 21 or the water outlet pipe assembly 22 can be configured as an expansion structure; or the part of the heat exchanger 10 forming the water inlet channel 12, the part of the heat exchanger 10 forming the water outlet channel 13, the water inlet pipe assembly 21 or the water outlet pipe assembly 22 can be configured as an expansion structure. Two of the heat exchanger 10, the water inlet pipe assembly 21 and the water outlet pipe assembly 22 can be constructed as expansion structures; alternatively, the part of the heat exchanger 10 forming the water inlet channel 12, the part of the heat exchanger 10 forming the water outlet channel 13, the water inlet pipe assembly 21 and the water outlet pipe assembly 22 can be constructed as expansion structures; alternatively, the part of the heat exchanger 10 forming the water inlet channel 12, the part of the heat exchanger 10 forming the water outlet channel 13, the water inlet pipe assembly 21 and the water outlet pipe assembly 22 can all be constructed as expansion structures.

[0058] According to the heat exchange system 100 of the embodiment of the utility model, the water inlet pipe assembly 21 is connected to the water inlet 121 of the heat exchanger 10, and the water outlet pipe assembly 22 is connected to the water outlet 131 of the heat exchanger 10. The part of the heat exchanger 10 that forms the water inlet channel 12, the part of the heat exchanger 10 that forms the water outlet channel 13, at least one of the water inlet pipe assembly 21 and the water outlet pipe assembly 22 are constructed into an expansion structure, and an explosion-proof valve 30 is connected to the expansion structure. The hose 40 is arranged in the expansion structure, and at least one end of the hose 40 is connected to the explosion-proof valve 30, so that the contraction and expansion of the hose 40 can buffer the pressure changes in the heat exchange system 100 and prevent the pressure of the heat exchange system 100 from rising or falling too quickly, thereby eliminating the need to set up structures such as an expansion tank, which is beneficial to reducing production costs. When the heat exchange system 100 is at a low temperature and not in use, the hose 40 can be further compressed by contracting or discharging the gas in the hose 40, effectively absorbing the expansion volume of the frozen water in the heat exchanger 10 system, avoiding the heat exchange system 100 from being frozen, and solving the problem of needing to drain water when the heat exchange system 100 is at a low temperature and not in use.

[0059] In some embodiments of the present invention, Figure 1-Figure 3 , Figure 7 , Fig.11 , Figure 14-Figure 19 As shown, there are multiple explosion-proof valves 30, and the multiple explosion-proof valves 30 include a first explosion-proof valve 31 and a second explosion-proof valve 32. Both ends of the hose 40 in the length direction are respectively connected to the first explosion-proof valve 31 and the second explosion-proof valve 32. When the pressure relief pressure of at least one of the first explosion-proof valve 31 and the second explosion-proof valve 32 reaches the set pressure relief pressure, the corresponding first explosion-proof valve 31 and the second explosion-proof valve 32 relieve pressure to meet the required pressure relief requirements, and the first explosion-proof valve 31 and the second explosion-proof valve 32 facilitate the inflation of the hose 40 or the discharge of the gas in the hose 40, which is conducive to improving the inflation and deflation efficiency.

[0060] According to some embodiments of the present invention, Figure 4-Figure 6 , Fig.10 , Fig.13 , Fig.16 and Fig.19 As shown, the hose 40 extends along the length direction of the expansion structure. When the pressure in the expansion structure changes, the pressure change can be better buffered by the contraction and expansion of the hose 40, so that the pressure of the entire heat exchange system 100 remains stable.

[0061] In some embodiments, Figure 5 and Fig.16As shown, the expansion structure is provided with a mounting hole 50, the explosion-proof valve 30 includes a main body 301 and a connecting part 302, the main body 301 is connected to the hose 40, the connecting part 302 is connected to the main body 301, the end of the connecting part 302 away from the main body 301 is passed through the mounting hole 50, the main body 301 abuts against the inner wall of the expansion structure, and the heat exchange system 100 also includes a fixing member 61, the fixing member 61 is threadedly connected to the end of the connecting part 302 away from the main body 301, and the fixing member 61 abuts against the outer wall of the expansion structure. Thus, by abutting the main body 301 against the inner wall of the expansion structure, the fixing member 61 abuts against the outer wall of the expansion structure, so that the hose 40 can be connected and fixed in the expansion structure through the explosion-proof expansion valve and the fixing member 61, ensuring that the hose 40 is fixed reliably, avoiding the problem of the hose 40 moving and affecting the normal use, and the structure is simple, easy to assemble, easy to process and manufacture, and conducive to reducing production costs. For example, the fixing member 61 may be a nut, and the connecting portion 302 is provided with a thread matching the nut.

[0062] In some embodiments of the present invention, Figure 5 As shown, the heat exchange system 100 also includes a seal 62, which is located between the inner wall of the expansion structure and the main body 301, and the seal 62 is arranged around the connecting portion 302. Thus, the seal 62 can prevent water from flowing out through the mounting hole 50, thereby effectively improving the sealing effect between the expansion structure and the explosion-proof valve 30, making the seal reliable and avoiding problems such as water leakage.

[0063] According to some embodiments of the present invention, the sum of the volumes in the hose 40 is A, the total volume of the water inlet channel 12, the water outlet channel 13, the heat exchange flow path 11, the water inlet pipe assembly 21 and the water outlet pipe assembly 22 is B, and the following is satisfied: A ≥ B / 10. Thus, the sum of the volumes in the hose 40 can be made greater than the total volume of the water expanding due to freezing, and the volume of the hose 40 can absorb the volume of the water in the heat exchange system 100 expanding due to freezing, so as to better protect the heat exchange system 100 from being frozen, thereby achieving the purpose of protecting the heat exchange system 100, and solving the problem of the heat exchange system 100 needing to be drained when it is at a low temperature and not in use.

[0064] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the heat exchange system 100 also includes a safety valve 63, which is arranged on the water inlet pipe assembly 21 or the water outlet pipe assembly 22. When the pressure in the heat exchange system 100 is greater than the pressure relief pressure of the safety valve 63, the safety valve 63 opens to relieve pressure, which can protect the heat exchange system 100 and ensure the safety of the use of the heat exchange system 100.

[0065] In addition, the pressure relief pressure of the hose 40 is greater than the pressure relief pressure of the safety valve 63, and the pressure relief pressure of the hose 40 is less than the design pressure of the water inlet pipe assembly 21, the water outlet pipe assembly 22 or the heat exchanger 10. Therefore, when the heat exchange system 100 is working and the internal pressure is relatively high, the heat exchange system 100 can be depressurized through the safety valve 63 first, so as to avoid the problem that the hose 40 needs to be filled with gas after frequent depressurization, which causes cumbersome operation. When the heat exchange system 100 is at a low temperature and not in use, the hose 40 is depressurized through the explosion-proof valve 30, which can further compress the hose 40 and effectively absorb the expansion volume of the frozen water in the heat exchanger 10 system, so as to avoid the problem that the water freezes and expands and damages the heat exchange system 100, and effectively solves the problem that the heat exchange system 100 needs to be drained when it is at a low temperature and not in use.

[0066] For example, the pressure relief pressure of the safety valve 63 is 0.3 MPa, the design pressure of the water inlet pipe assembly 21, the water outlet pipe assembly 22 and the heat exchanger 10 is 4.5 MPa, the pressure relief pressure of the hose 40 is greater than the pressure relief pressure of the safety valve 63 of 0.3 MPa, and the pressure relief pressure of the hose 40 is less than the design pressure of the water inlet pipe assembly 21, the water outlet pipe assembly 22 or the heat exchanger 10 of 4.5 MPa. For example, the pressure relief pressure of the hose 40 can be 0.6 MPa, the filling pressure during use is 0.15 MPa, and the pressure relief pressure of the explosion-proof valve 30 is 0.6 MPa.

[0067] In some embodiments, Figure 4 , Figure 5 , Figure 8-Figure 10 As shown, at least one of the partial heat exchanger 10 forming the water inlet channel 12 and the partial heat exchanger 10 forming the water outlet channel 13 is configured as an expansion structure, that is, the partial heat exchanger 10 forming the water inlet channel 12 or the partial heat exchanger 10 forming the water outlet channel 13 can be configured as an expansion structure; or, the partial heat exchanger 10 forming the water inlet channel 12 and the partial heat exchanger 10 forming the water outlet channel 13 can both be configured as expansion structures. When heat exchange is performed in the heat exchanger 10, when the water temperature increases and the volume expands, the hose 40 is compressed so that the hose 40 can absorb the expansion amount and prevent the pressure of the heat exchange system 100 from increasing too quickly; when the water temperature decreases and the volume shrinks, the hose 40 expands to avoid excessive pressure drop in the heat exchange system 100, which can reduce the number of pressure relief of the safety valve 63 and the number of water replenishment of the automatic water replenishment valve.

[0068] For example, the pressure relief pressure of the hose 40 is 0.6 MPa, and the part of the heat exchanger 10 forming the water inlet channel 12 and the part of the heat exchanger 10 forming the water outlet channel 13 can both be constructed as expansion structures, and the sum of the volumes of the hose 40 located in the water inlet channel 12 and the hose 40 located in the water outlet channel 13 is greater than one tenth of the total volume of the water inlet channel 12, the water outlet channel 13 and the heat exchange flow path 11.

[0069] When the heat exchange system 100 is at a low temperature and not in use, the water is not discharged from the heat exchanger 10 and freezes, causing the hose 40 to contract and absorb the volume of the water expansion caused by freezing; when the internal pressure of the hose 40 reaches the pressure relief pressure of 0.6MPa, the hose 40 is depressurized through the explosion-proof valve 30, and the hose 40 can further contract until the entire volume of the water expansion caused by freezing is completely absorbed, thereby achieving the purpose of protecting the heat exchanger 10 and solving the problem of the need to drain water when the heat exchanger 10 is not in use at a low temperature. After the gas in the hose 40 is discharged, the gas can be refilled to restore the antifreeze and anti-expansion functions of the hose 40.

[0070] In some embodiments, Figure 4 , Figure 6 , Figure 11-Figure 19 As shown, at least one of the water inlet pipe assembly 21 and the water outlet pipe assembly 22 is configured as an expansion structure, that is, the water inlet pipe assembly 21 or the water outlet pipe assembly 22 can be configured as an expansion structure; or, the water inlet pipe assembly 21 and the water outlet pipe assembly 22 can both be configured as expansion structures. When the heat exchange system 100 is working, when the water temperature rises and the volume expands, the hose 40 is compressed, so that the hose 40 can absorb the expansion amount, preventing the pressure of the heat exchange system 100 from rising too quickly; when the water temperature decreases and the volume shrinks, the hose 40 expands, avoiding excessive pressure drop in the heat exchange system 100, and reducing the number of pressure relief times of the safety valve 63 and the number of water replenishment times of the automatic water replenishment valve.

[0071] For example, the pressure relief pressure of the hose 40 is 0.6Mpa, the water inlet pipe assembly 21 can be constructed into an expansion structure, and the volume of the hose 40 is greater than one tenth of the volume of the water inlet pipe assembly 21. When the heat exchange system 100 is at a low temperature and not in use, the water is not discharged from the water inlet pipe assembly 21 and freezes, causing the hose 40 to shrink and absorb the volume of the water expansion caused by freezing; when the internal pressure of the hose 40 reaches the pressure relief pressure of 0.6MPa, the hose 40 is depressurized through the explosion-proof valve 30, and the hose 40 can further shrink until the entire volume of the water expansion caused by freezing is completely absorbed, which can achieve the purpose of protecting the water inlet pipe assembly 21 and solve the problem of the water inlet pipe assembly 21 needing to be drained when it is not in use at a low temperature. After the gas in the hose 40 is discharged, the gas can be refilled to restore the anti-freezing and anti-expansion functions of the hose 40.

[0072] Alternatively, the pressure relief pressure of the hose 40 is 0.6 MPa, the outlet pipe assembly 22 can be constructed as an expansion structure, and the volume of the hose 40 is greater than one tenth of the total volume of the outlet pipe assembly 22. When the heat exchange system 100 is at a low temperature and not in use, the water does not discharge from the outlet pipe assembly 22 and freezes, causing the hose 40 to contract and absorb the volume of the water expansion caused by freezing; when the internal pressure of the hose 40 reaches the pressure relief pressure of 0.6 MPa, the hose 40 is depressurized through the explosion-proof valve 30, and the hose 40 can further contract until the entire volume of the water expansion caused by freezing is completely absorbed, thereby achieving the purpose of protecting the outlet pipe assembly 22 and solving the problem of the outlet pipe assembly 22 needing to be drained when not in use at a low temperature. After the gas in the hose 40 is discharged, the gas can be refilled to restore the antifreeze and anti-expansion functions of the hose 40.

[0073] In some specific embodiments, Figure 4-Figure 6 , Fig.10 , Fig.13 , Fig.16 and Fig.19 As shown, the pressure relief pressure of the hose 40 is 0.6Mpa, and the part of the heat exchanger 10 forming the water inlet channel 12, the part of the heat exchanger 10 forming the water outlet channel 13, the water inlet pipe assembly 21 and the water outlet pipe assembly 22 are all constructed as expansion structures, and the sum of the volumes of the hose 40 located in the water inlet channel 12, the hose 40 located in the water outlet channel 13, the hose 40 located in the water inlet pipe assembly 21 and the hose 40 located in the water outlet pipe assembly 22 is greater than one tenth of the total volume of the water inlet channel 12, the water outlet channel 13, the heat exchange flow path 11, the water inlet pipe assembly 21 and the water outlet pipe assembly 22.

[0074] When the heat exchange system 100 is at a low temperature and not in use, the water is not discharged from the heat exchange system 100 and freezes, causing the hose 40 to contract and absorb the volume of the water expansion caused by freezing; when the internal pressure of the hose 40 reaches the pressure relief pressure of 0.6MPa, the hose 40 is depressurized through the explosion-proof valve 30, and the hose 40 can further contract until the entire volume of the water expansion caused by freezing is completely absorbed, thereby achieving the purpose of protecting the heat exchange system 100 and solving the problem of the need to drain the water when the heat exchange system 100 is not in use at a low temperature. After the gas in the hose 40 is discharged, the gas can be refilled to restore the anti-freezing and anti-expansion functions of the hose 40.

[0075] In some embodiments, Figure 1-Figure 4 As shown, the heat exchange system 100 further includes a detection device 65, which is disposed on the water inlet pipe assembly 21 or the water outlet pipe assembly 22. The detection device 65 can monitor the water flow in the heat exchange system 100. For example, when the detection device 65 monitors that the water flow in the heat exchange system 100 is less than the set flow, water is added to the heat exchange system 100 to meet the working requirements of the heat exchange system 100. For example, the detection device 65 can be a water flow switch.

[0076] In some embodiments, Figure 4 , Figure 5 and Fig.10 As shown, when the part of the heat exchanger 10 forming the water inlet channel 12 is constructed into an expansion structure, the hose 40 is arranged in the water inlet channel 12, and the explosion-proof valve 30 is connected to the side of the heat exchanger 10 away from the water inlet 121, so that the water inlet 121 can be separated from the setting position of the explosion-proof valve 30 to avoid interference and other problems.

[0077] In some embodiments, Figure 4 , Figure 5 and Fig.10 As shown, when the part of the heat exchanger 10 forming the water outlet channel 13 is constructed into an expansion structure, the hose 40 is arranged in the water outlet channel 13, and the explosion-proof valve 30 is connected to the side of the heat exchanger 10 away from the water outlet 131, so that the water outlet 131 can be separated from the setting position of the explosion-proof valve 30 to avoid interference and other problems.

[0078] In some specific embodiments, Figure 4 , Figure 5 and Fig.10 As shown, when the part of the heat exchanger 10 that forms the water outlet channel 13 and the part of the heat exchanger 10 that forms the water outlet channel 13 are both constructed as expansion structures, the water inlet 121 and the water outlet 131 are arranged on the same side of the heat exchanger 10, and a hose 40 is provided in the water inlet channel 12 and the water outlet channel 13. The two explosion-proof valve nozzles 30 are connected to the side of the heat exchanger 10 that is away from the water inlet 121 and the water outlet 131, so that the water inlet 121 and the water outlet 131 can be separated from the setting position of the two explosion-proof valve nozzles 30 to avoid interference and other problems.

[0079] In some embodiments, Figure 1-Figure 3 As shown, the heat exchanger 10 also has a refrigerant flow path, a fluorine inlet 14 and a fluorine outlet 15, and the fluorine inlet 14 and the fluorine outlet 15 are connected to the refrigerant flow path, so that the refrigerant can enter the refrigerant flow path through the fluorine inlet 14, and the refrigerant in the refrigerant flow path can exchange heat with the water in the heat exchange flow path 11, and the refrigerant after heat exchange can flow out through the fluorine outlet 15, so as to realize the flow circulation of the refrigerant and meet the required heat exchange requirements. For example, the refrigerant is Freon.

[0080] In some embodiments, Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8-Figure 10 As shown, the heat exchanger 10 may include a first end plate 101, a second end plate 102, and a plurality of (greater than or equal to two) plates 103, wherein the plurality of plates 103 are arranged in a thickness direction (e.g. Figure 4 ), the first end plate 101 and the second end plate 102 are respectively located on opposite sides of the thickness direction of the plurality of plates 103, the first end plate 101, the second end plate 102 and the plurality of plates 103 define a heat exchange flow path 11, the water inlet 121, the water outlet 131, the fluorine inlet 14 and the fluorine outlet 15 are all arranged on the first end plate 101, so as to facilitate the connection between the external flow path and the heat exchanger 10, and the spacing between the first end plate 101, the second end plate 102 and the plurality of plates 103 is small, which can improve the heat exchange efficiency of the heat exchanger 10. For example, the heat exchanger 10 can be a water-fluorine plate heat exchanger.

[0081] In addition, if Figure 4 , Figure 5 and Fig.10 As shown, a hose 40 is provided in the water inlet channel 12 and the water outlet channel 13, and the two explosion-proof valves 30 are connected to the second end plate 102, which can ensure that the two hoses 40 are securely fixed in the heat exchanger 10 and avoid interference and other problems.

[0082] It should be noted that, for the convenience of description, the directions such as "front and rear directions" in the present invention are based on the directions shown in the drawings, but are not limitations on the directions in actual application.

[0083] According to some embodiments of the present invention, Figure 1-Figure 3 , Figure 6 and Figure 7 As shown, when the water inlet pipe assembly 21 is constructed into an expansion structure, the water inlet pipe assembly 21 includes a first water inlet pipe 211 and a second water inlet pipe 212, and the heat exchange system 100 also includes a water pump 64, the inlet 641 of the water pump 64 is connected to the first water inlet pipe 211, and the two ends of the second water inlet pipe 212 in the length direction are respectively connected to the outlet 642 of the water pump 64 and the water inlet 121, so that the water pump 64 can drive the water flow to enter from the first water inlet pipe 211, enter the water pump 64 from the inlet 641 and flow out from the outlet 642, enter the heat exchange flow path 11 from the water inlet 121 through the second water inlet pipe 212 for heat exchange, and the driving force is provided by the water pump 64 to realize the circulation of water flow, so that the water flow enters the heat exchanger 10 for heat exchange with the liquid, thereby meeting the flow requirements of the water flow.

[0084] In addition, if Figure 11-13 , Figure 17-Figure 19As shown, at least one of the first water inlet pipe 211 and the second water inlet pipe 212 is configured as an expansion structure, that is, the first water inlet pipe 211 or the second water inlet pipe 212 can be configured as an expansion structure; or, the first water inlet pipe 211 and the second water inlet pipe 212 can both be configured as expansion structures. When the heat exchange system 100 is working, when the water temperature rises and the volume expands, the hose 40 is compressed, so that the hose 40 can absorb the expansion amount, preventing the pressure of the heat exchange system 100 from rising too fast; when the water temperature decreases and the volume shrinks, the hose 40 expands, avoiding excessive pressure drop in the heat exchange system 100, ensuring the normal operation of the heat exchange system 100.

[0085] For example, the pressure relief pressure of the hose 40 is 0.6 MPa, the first water inlet pipe 211 can be constructed as an expansion structure, and the volume of the hose 40 is greater than one tenth of the volume of the first water inlet pipe 211. When the heat exchange system 100 is at a low temperature and not in use, the water is not discharged from the first water inlet pipe 211 and freezes, causing the hose 40 to shrink and absorb the volume of the water expansion caused by freezing; when the internal pressure of the hose 40 reaches the pressure relief pressure of 0.6 MPa, the hose 40 is depressurized through the explosion-proof valve 30, and the hose 40 can further shrink until the entire volume of the water expansion caused by freezing is completely absorbed, which can achieve the purpose of protecting the first water inlet pipe 211 and solve the problem of the first water inlet pipe 211 needing to be drained when not in use at a low temperature. After the gas in the hose 40 is discharged, the gas can be refilled to restore the antifreeze and anti-expansion functions of the hose 40.

[0086] Alternatively, the pressure relief pressure of the hose 40 is 0.6 MPa, the second water inlet pipe 212 can be constructed as an expansion structure, and the volume of the hose 40 is greater than one tenth of the total volume of the second water inlet pipe 212. When the heat exchange system 100 is at a low temperature and not in use, the water is not discharged from the second water inlet pipe 212 and freezes, causing the hose 40 to shrink and absorb the volume of the water expansion caused by freezing; when the internal pressure of the hose 40 reaches the pressure relief pressure of 0.6 MPa, the hose 40 is depressurized through the explosion-proof valve 30, and the hose 40 can further shrink until the entire volume of the water expansion caused by freezing is completely absorbed, which can achieve the purpose of protecting the second water inlet pipe 212 and solve the problem of the second water inlet pipe 212 needing to be drained when not in use at a low temperature. After the gas in the hose 40 is discharged, the gas can be refilled to restore the antifreeze and anti-expansion functions of the hose 40.

[0087] In some embodiments, Figure 1-Figure 3 As shown, an exhaust port is provided on the second water inlet pipe 212, and the exhaust port is connected to the exhaust valve 66, so that the gas in the heat exchange system 100 can be discharged through the exhaust valve 66, and the liquid is prevented from being discharged through the air inlet, thereby ensuring the normal use of the heat exchange system 100.

[0088] In some embodiments, the hose 40 may be a rubber hose. The rubber hose is relatively flexible and can withstand gas at a certain pressure, which can better buffer the change of pressure in the expansion structure, thereby better ensuring the stability of the pressure in the expansion structure and, in the case of low temperature, when water is not discharged but freezes in the heat exchange system 100, the rubber hose can be contracted or even discharged to further contract and absorb the volume of the water expansion caused by freezing, thereby protecting the heat exchange system 100, preventing the heat exchange system 100 from being frozen, and solving the problem of needing to drain water when not in use at low temperature.

[0089] The air treatment equipment according to the embodiment of the utility model includes the heat exchange system 100 according to the embodiment of the utility model. Since the heat exchange system 100 according to the embodiment of the utility model has the above-mentioned beneficial technical effects, the air treatment equipment according to the embodiment of the utility model is connected with the water inlet 121 of the heat exchanger 10 through the water inlet pipe assembly 21, and the water outlet pipe assembly 22 is connected with the water outlet 131 of the heat exchanger 10. At least one of the part of the heat exchanger 10 forming the water inlet channel 12, the part of the heat exchanger 10 forming the water outlet channel 13, the water inlet pipe assembly 21 and the water outlet pipe assembly 22 is configured as an expansion structure, and the expansion structure is connected with an explosion-proof valve 30. The hose 40 is arranged in the expansion structure, and at least one end of the hose 40 is connected to the explosion-proof valve 30, so that the contraction and expansion of the hose 40 can buffer the pressure change in the heat exchange system 100, prevent the pressure of the heat exchange system 100 from rising or falling too fast, and save the need to set up structures such as expansion tanks, which is conducive to reducing production costs. When the heat exchange system 100 is at a low temperature and not in use, the hose 40 can be further compressed by contracting or discharging the gas in the hose 40, effectively absorbing the expansion volume of the frozen water in the heat exchanger 10 system, avoiding the heat exchange system 100 from being frozen, and solving the problem of needing to drain water when the heat exchange system 100 is at a low temperature and not in use.

[0090] Among them, the air handling equipment of the present application can be an air conditioner, an air source heat pump system, a heat pump water heater, a heat pump unit, a heat pump chiller or a heat pump hot and cold water heater and other equipment, and there is no limitation here.

[0091] Other structures and operations of the heat exchange system 100 and the air handling equipment according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0092] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0093] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0094] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat exchange system, characterized in that: include: A heat exchanger, wherein the heat exchanger has a heat exchange flow path and a water inlet channel and a water outlet channel connected to the heat exchange flow path, and the heat exchanger has a water inlet connected to the water inlet channel and a water outlet connected to the water outlet channel; an inlet pipe assembly and an outlet pipe assembly, wherein the inlet pipe assembly is in communication with the water inlet, and the outlet pipe assembly is in communication with the water outlet, wherein at least one of the heat exchanger forming the water inlet channel, the heat exchanger forming the water outlet channel, the inlet pipe assembly and the outlet pipe assembly is configured as an expansion structure, and an explosion-proof valve is connected to the expansion structure; A hose is arranged in the expansion structure, and at least one end of the hose is connected to the explosion-proof valve.

2. The heat exchange system according to claim 1, characterized in that: The explosion-proof valves are multiple and include a first explosion-proof valve and a second explosion-proof valve. Both ends of the hose in the length direction are connected to the first explosion-proof valve and the second explosion-proof valve respectively.

3. The heat exchange system according to claim 1, characterized in that: The hose extends along the length direction of the expansion structure.

4. The heat exchange system according to claim 1, characterized in that: The expansion structure is provided with a mounting hole, and the explosion-proof valve comprises: A main body portion, the main body portion being connected to the hose; A connecting part, wherein the connecting part is connected to the main body, an end of the connecting part away from the main body is passed through the mounting hole, and the main body abuts against the inner wall of the expansion structure. The heat exchange system also includes a fixing part, which is threadedly connected to the end of the connecting part away from the main body and abuts against the outer wall of the expansion structure.

5. The heat exchange system according to claim 4, characterized in that: The heat exchange system further comprises: A sealing member is located between the inner wall of the expansion structure and the main body, and the sealing member is arranged around the connecting portion.

6. The heat exchange system according to claim 1, characterized in that: The sum of the volumes in the hose is A, the total volume of the water inlet channel, the water outlet channel, the heat exchange flow path, the water inlet pipe assembly and the water outlet pipe assembly is B, and the following condition is satisfied: A≥B / 10.

7. The heat exchange system according to claim 1, characterized in that: Also includes: A safety valve is provided on the water inlet pipe assembly or the water outlet pipe assembly, and the pressure relief pressure of the hose is greater than the pressure relief pressure of the safety valve and less than the design pressure of the water inlet pipe assembly, the water outlet pipe assembly or the heat exchanger.

8. The heat exchange system according to claim 1, characterized in that: When the portion of the heat exchanger forming the water inlet channel is configured as an expansion structure, the hose is arranged in the water inlet channel, and the explosion-proof valve is connected to a side of the heat exchanger away from the water inlet; And / or, when the portion of the heat exchanger forming the water outlet channel is constructed into an expansion structure, the hose is arranged in the water outlet channel, and the explosion-proof valve is connected to a side of the heat exchanger away from the water outlet.

9. The heat exchange system according to claim 1, characterized in that: When the water inlet pipe assembly is configured as an expansion structure, the water inlet pipe assembly includes a first water inlet pipe and a second water inlet pipe, and the heat exchange system further includes: A water pump, wherein the inlet of the water pump is connected to the first water inlet pipe, and the two ends of the second water inlet pipe in the length direction are respectively connected to the outlet of the water pump and the water inlet, and at least one of the first water inlet pipe and the second water inlet pipe is constructed as the expansion structure.

10. An air treatment device, characterized in that: Comprising a heat exchange system according to any one of claims 1-9.

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