Sealing structure and heat exchange system

Abstract

The utility model discloses a sealing structure and a heat exchange system, the sealing structure comprises a first joint, a second joint and a plurality of sealing rings, the first joint is provided with a first channel which penetrates through the first joint along a first direction, and the first joint is provided with a plurality of first step surfaces which are arranged around the first channel and are arranged at intervals along the first direction; the second connector is provided with a second channel penetrating through the second connector in the first direction, the second connector is provided with a plurality of second step faces which are arranged around the second channel and arranged at intervals in the first direction, and the first connector is located in the second channel so that the second step faces can be opposite to the first step faces one by one and can be attached to the first step faces; and each sealing ring is arranged between the first step surface and the second step surface which are correspondingly matched with each other. According to the sealing structure, multiple layers of sealing barriers can be formed between the first connector and the second connector, and the sealing ring can further seal the gap between the first connector and the second connector so as to improve the sealing performance between the first connector and the second connector.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, and in particular to a sealing structure and heat exchange system. Background Technology

[0002] In related technologies, liquid cooling systems, liquid cooling modules for cabinets, or other high-performance electronic devices use simple sealing rings or gaskets with threads for sealing the liquid cooling tank. However, the sealing effect is poor for liquids in long-term, high-temperature, and high-pressure environments. After the seal fails, the liquid can easily enter the equipment through pores or sealing interfaces, which not only affects the heat exchange efficiency of the system but may also lead to safety hazards, affect the normal operation of the equipment, and increase maintenance costs. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a sealing structure in which a stepped structure can be formed between the first and second joints, thereby creating a multi-layered sealing barrier. A sealing ring can further seal the gap between the first and second joints, increasing the sealing performance between them.

[0004] This utility model also proposes a heat exchange system having the above-mentioned sealing structure.

[0005] A sealing structure according to a first aspect of the present invention includes: a first connector having a first channel extending through the first connector in a first direction, the first connector having a plurality of first stepped surfaces arranged around the first channel, the plurality of first stepped surfaces being spaced apart in the first direction; a second connector having a second channel extending through the second connector in the first direction, the second connector having a plurality of second stepped surfaces arranged around the second channel, the plurality of second stepped surfaces being spaced apart in the first direction, the first connector being located within the second channel such that the plurality of second stepped surfaces are one-to-one opposite and fit against the plurality of first stepped surfaces, the first channel and the second channel being connected; and a sealing ring having a plurality of sealing rings, each sealing ring being disposed between corresponding mating first stepped surfaces and second stepped surfaces to seal the gap between the first stepped surfaces and the second stepped surfaces.

[0006] According to the sealing structure of this utility model embodiment, the first connector has a plurality of first stepped surfaces arranged around the first channel, and the second connector has a plurality of second stepped surfaces arranged around the second channel. The first connector is located inside the second channel so that the plurality of second stepped surfaces are opposite to and fit the plurality of first stepped surfaces one by one. A stepped structure can be formed between the first connector and the second connector to form a multi-layer sealing barrier between the first connector and the second connector. A plurality of sealing rings are also provided between the first connector and the second connector. The sealing rings can further seal the gap between the first connector and the second connector and increase the sealing performance between the first connector and the second connector.

[0007] According to some embodiments of the present invention, each of the first step surfaces is provided with a sealing groove, and the sealing ring is located in the sealing groove.

[0008] According to some embodiments of the present invention, the sealing groove is disposed adjacent to the first channel.

[0009] According to some embodiments of the present invention, along the first direction, the first connector includes a plurality of first annular connectors connected in sequence. Each first annular connector has a first stepped surface on the side facing the second connector. Each first annular connector has a through hole formed inside. The plurality of through holes are connected to form the first channel, and the diameters of the plurality of through holes are all equal. In the direction from the first connector to the second connector, the outer diameters of the plurality of first annular connectors decrease sequentially.

[0010] According to some embodiments of the present invention, the first connector is detachably connected to the liquid storage cavity, and the first annular connector facing away from the second connector is detachably connected to the liquid storage cavity in the direction of the second connector toward the first connector, and the first channel communicates with the liquid storage cavity.

[0011] According to some embodiments of the present invention, the sealing structure further includes: a first fastener, the first annular joint adjacent to the liquid storage cavity having a plurality of spaced-apart first connection holes, the liquid storage cavity having a second connection hole opposite to the first connection hole, the first fastener passing through the first connection hole and the second connection hole to detachably connect the first joint to the liquid storage cavity, and the first connection hole being a countersunk hole.

[0012] According to some embodiments of the present invention, the sealing structure further includes: a second fastener, the first annular connector having a plurality of spaced third connecting holes, the second connector having a fourth connecting hole opposite to the third connecting holes, the second fastener passing through the third connecting holes and the fourth connecting holes to detachably connect the first connector and the second connector, and the third connecting holes and the first connecting holes are arranged alternately around the first channel in the circumferential direction.

[0013] According to some embodiments of the present invention, along the first direction, the second connector includes a plurality of second annular connectors connected in sequence, each second annular connector having a second stepped surface on the side facing the first connector, and in the direction from the first connector to the second connector, the outer diameters of the plurality of second annular connectors decrease sequentially, and each second annular connector has a plurality of fourth connecting holes.

[0014] According to some embodiments of the present invention, the first connector is an integrally molded part; and / or, the second connector is an integrally molded part.

[0015] The heat exchange system according to a second aspect of the present invention includes: the sealing structure described in the first aspect of the present invention.

[0016] According to the heat exchange system of this utility model embodiment, by setting the above-mentioned sealing structure, a stepped structure is formed between the first joint and the second joint, so that a multi-layer sealing barrier can be formed between the first joint and the second joint. In addition, multiple sealing rings are provided between the first joint and the second joint, which can further seal the gap between the first joint and the second joint and increase the sealing performance between the first joint and the second joint.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the connection between the external pipeline and the liquid storage cavity of the sealing structure according to some embodiments of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of the first joint in the middle;

[0021] Figure 3 yes Figure 1 A schematic diagram showing the connection between the second connector and the external pipeline.

[0022] Figure label:

[0023] 100. Sealed structure;

[0024] 10. First connector; 11. First channel; 12. First annular connector; 121. First stepped surface; 122. Sealing groove; 123. First connecting hole; 124. Third connecting hole;

[0025] 20. Second connector; 21. Second channel; 22. Second annular connector; 221. Second stepped surface; 222. Fourth connecting hole;

[0026] 30. Sealing ring;

[0027] 41. Liquid storage chamber; 42. External piping. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The following is for reference. Figures 1-3 The sealing structure 100 according to an embodiment of the present utility model is described.

[0032] According to a first aspect embodiment of the present invention, a sealing structure 100 includes a first connector 10 and a second connector 20. The first connector 10 has a first channel 11, which is oriented along a first direction (e.g., see attached figure). Figure 1 The first connector 10 (shown in the X direction) passes through the first connector 10. The first connector 10 has a plurality of first stepped surfaces 121 arranged around the first channel 11, and the plurality of first stepped surfaces 121 are spaced apart along the first direction. The second connector 20 has a second channel 21, which passes through the second connector 20 along the first direction. The second connector 20 has a plurality of second stepped surfaces 221 arranged around the second channel 21, and the plurality of second stepped surfaces 221 are spaced apart along the first direction. The first connector 10 is installed into the second channel 21 along the first direction so that the plurality of second stepped surfaces 221 are opposite and fit against the plurality of first stepped surfaces 121 one by one, and also connects the first channel 11 and the second channel 21.

[0033] When the first connector 10 is installed into the second channel 21 along the first direction, the correspondence between the first step surface 121 and the second step surface 221 can play a guiding and positioning role, ensuring that the installation between the first connector 10 and the second connector 20 is accurate and avoiding installation deviation from affecting the sealing effect.

[0034] The first connector 10 can be installed on the liquid storage chamber 41, and the second connector 20 can be connected to the external pipeline 42. The first channel 11 is connected to the liquid storage chamber 41, and the second channel 21 is connected to the external pipeline 42, so that the first connector 10 and the second connector 20 are connected between the liquid storage chamber 41 and the external pipeline 42. This can also seal the connection gap between the liquid storage chamber 41 and the external pipeline 42, preventing the tank oil in the liquid storage chamber 41 from leaking from the connection gap between the liquid storage chamber 41 and the external pipeline 42 when it flows through the external pipeline 42.

[0035] The sealing structure 100 also includes multiple sealing rings 30. The number of sealing rings 30 is equal between the first stepped surface 121, the second stepped surface 221, and the sealing ring 30. Each sealing ring 30 is disposed between the corresponding mating first stepped surface 121 and second stepped surface 221 to seal the gap between the first stepped surface 121 and the second stepped surface 221. When the first connector 10 is installed in the second channel 21 of the second connector 20, a stepped structure can be formed between the first connector 10 and the second connector 20, creating a multi-layer sealing barrier. Furthermore, multiple sealing rings 30 are provided between the first connector 10 and the second connector 20 to further seal the gap between them, increasing the sealing performance between the first connector 10 and the second connector 20.

[0036] In a specific example, both the first connector 10 and the second connector 20 can be circular connectors, which simplifies the processing of the first connector 10 and the second connector 20 and avoids stress concentration in the first connector 10 and the second connector 20. The first channel 11 penetrates the first connector 10 along its axial direction, and the diameter of the first step surface 121 decreases sequentially in the direction from the first connector 10 to the second connector 20; the second channel 21 penetrates the second connector 20 along its axial direction, and the diameter of the second step surface 221 also decreases sequentially in the direction from the first connector 10 to the second connector 20.

[0037] When the first connector 10 is installed into the second channel 21 of the second connector 20, the first step surface 121 of the first connector 10 closest to the liquid storage cavity 41 is in contact with the second step surface 221 of the second connector 20 closest to the liquid storage cavity 41; the first step surface 121 of the first connector 10 closest to the outermost pipe 42 is in contact with the second step surface 221 of the outermost pipe 42 of the second connector 20.

[0038] For example, the first connector 10 and the second connector 20 can be formed by processing elastic materials such as fluororubber (FKM) or polytetrafluoroethylene (PTFE), which can ensure long-term stability and no failure in the oil tank environment.

[0039] According to the sealing structure 100 of this utility model embodiment, the first connector 10 has a plurality of first stepped surfaces 121 arranged around the first channel 11, and the second connector 20 has a plurality of second stepped surfaces 221 arranged around the second channel 21. The first connector 10 is located inside the second channel 21, so that the plurality of second stepped surfaces 221 are opposite to and fit the plurality of first stepped surfaces 121 one by one. A stepped structure can be formed between the first connector 10 and the second connector 20, so that a multi-layer sealing barrier can be formed between the first connector 10 and the second connector 20. A plurality of sealing rings 30 are also provided between the first connector 10 and the second connector 20. The sealing rings 30 can further seal the gap between the first connector 10 and the second connector 20 to increase the sealing performance between the first connector 10 and the second connector 20.

[0040] According to some embodiments of this utility model, refer to Figures 1-2 Each first step surface 121 is provided with a sealing groove 122, and the sealing ring 30 is located in the sealing groove 122. The sealing ring 30 has an annular structure, and correspondingly, the sealing groove 122 is an annular groove provided on the first step surface 121. The sealing groove 122 can provide installation space for the sealing ring 30 and can also provide pre-positioning for the installation of the sealing ring 30. When the first connector 10 is installed into the second channel 21 of the second connector 20, the second connector 20 can compress the sealing ring 30. The sealing groove 122 can provide a fixed space for the sealing ring 30 when it is compressed, so as to prevent the sealing ring 30 from shifting.

[0041] According to some embodiments of this utility model, refer to Figures 1-2 The sealing groove 122 is located adjacent to the first channel 11, that is, the sealing ring 30 is located adjacent to the first channel 11. When the first connector 10 is installed in the second channel 21 of the second connector 20, if the oil in the tank leaks, it will first leak from the stepped surface of the first connector 10 and the second connector 20 near the first channel 11. The sealing ring 30 is located at the stepped surface of the first connector 10 and the second connector 20 near the first channel 11, which can increase the seal for the oil leakage point in the tank.

[0042] According to some embodiments of this utility model, refer to Figures 1-2 Along the first direction, the first connector 10 includes a plurality of first annular connectors 12 connected in sequence. Each first annular connector 12 has a first stepped surface 121 on the side facing the second connector 20. Each first annular connector 12 has a through hole formed inside it. The plurality of through holes are connected to form a first channel 11, and the diameters of the plurality of through holes are all equal. In the direction from the first connector 10 to the second connector 20, the outer diameters of the plurality of first annular connectors 12 decrease sequentially. The inner diameters of the first channel 11 are equal, so that the oil for the tank flows more smoothly in the first channel 11, and it also facilitates the processing and manufacturing of the first connector 10.

[0043] A first annular connector 12 is connected to the side of the adjacent first annular connector 12 in the first direction and close to the second connector 20. The through holes of the two adjacent first annular connectors are arranged opposite each other, and the inner walls of the adjacent first annular connectors 12 are coplanar. The outer wall of the first channel 11 is cylindrical.

[0044] For example, there are three first annular joints 12, and the three first annular joints 12 are connected in sequence to form three first stepped surfaces 121 on the first joint 10.

[0045] According to some embodiments of this utility model, refer to Figures 1-2 The first connector 10 is detachably connected to the liquid storage cavity 41. The first connector 10 can be connected to the liquid storage cavity 41 by bolts. When the sealing structure 100 is replaced later, the bolts can be removed from the first connector 10 and the liquid storage cavity 41 so that the sealing structure 100 can be removed from the liquid storage cavity 41 for replacement.

[0046] In the direction from the second connector 20 toward the first connector 10, the first annular connector 12 facing away from the second connector 20 is detachably connected to the liquid storage cavity 41. The second connector 20 includes a plurality of first annular connectors 12. The first annular connector 12 facing away from the second connector 20 has the largest outer diameter, and the distance between the first stepped surface 121 of the first annular connector 12 facing away from the second connector 20 and the liquid storage cavity 41 is the shortest. The area of ​​the first stepped surface 121 of the first annular connector 12 facing away from the second connector 20 is the largest, which can increase the connection area between the first annular connector 12 and the liquid storage cavity 41, thereby increasing the connection strength between the first connector 10 and the liquid storage cavity 41.

[0047] The first channel 11 is connected to the liquid storage chamber 41, and the tank oil in the liquid storage chamber 41 can be transported to the external pipeline 42 through the first channel 11.

[0048] According to some embodiments of this utility model, refer to Figures 1-2 The sealing structure 100 further includes: a first fastener; a first annular connector 12 adjacent to the liquid storage cavity 41 has a plurality of spaced-apart first connecting holes 123; the liquid storage cavity 41 has a plurality of second connecting holes, the second connecting holes being opposite to the first connecting holes 123, and the number of first connecting holes 123 and second connecting holes being equal and corresponding one-to-one; the first fastener is inserted through the first connecting holes 123 and the second connecting holes to detachably connect the first connector 10 to the liquid storage cavity 41. Furthermore, the first connecting hole 123 is a countersunk hole, which allows the head of the first fastener to be recessed within the first connecting hole 123, preventing the first fastener from occupying the space connecting the first connector 10 and the second connector 20, so that the first stepped surface 121 and the second stepped surface 221 can fit tightly together.

[0049] In a specific example, the first connection hole 123 is located on the side of the sealing groove 122 opposite to the first channel 11. The sealing groove 122 can seal the gap at the connection between the first connector 10 and the second connector 20, preventing the oil in the groove of the first channel 11 and the second channel 21 from leaking through the first connection hole 123.

[0050] For example, the first fastener is the bolt described above. Both the first connecting hole 123 and the second connecting hole have internal threads, and the bolt has external threads. The combination of the external and internal threads allows the bolt to be fixed into the first connecting hole 123 and the second connecting hole.

[0051] According to some embodiments of this utility model, refer to Figures 1-3 The sealing structure 100 further includes a second fastener. The first annular joint 12 has a plurality of spaced third connecting holes 124, and the second joint 20 has a plurality of fourth connecting holes 222. The fourth connecting holes 222 are opposite to the third connecting holes 124, and the number of the third connecting holes 124 and the fourth connecting holes 222 are equal and correspond one-to-one. The second fastener is inserted through the third connecting holes 124 and the fourth connecting holes 222 to detachably connect the first joint 10 and the second joint 20.

[0052] The first fastener passes through the first connecting hole 123 and the second connecting hole to detachably connect the first connector 10 to the liquid storage cavity 41. The second fastener passes through the third connecting hole 124 and the fourth connecting hole 222 to detachably connect the first connector 10 to the second connector 20. On the first annular connector 12 near the liquid storage cavity 41, the third connecting hole 124 and the first connecting hole 123 are arranged alternately around the circumference of the first channel 11. The first fastener that fixes the first connector 10 can be arranged around the circumference of the first channel 11 on the first annular connector 12. At the same time, the second fastener that fixes the first connector 10 and the second connector 20 can be arranged around the circumference of the first channel 11 on the first annular connector 12. This can ensure the tightness of the connection between the first annular connector 12 and the liquid storage cavity 41, and also increase the tightness of the connection between the first connector 10 and the second connector 20.

[0053] In a specific example, the first connection hole 123 is located on the side of the sealing groove 122 opposite to the first channel 11. The sealing groove 122 can seal the gap at the connection between the first connector 10 and the second connector 20, preventing the oil in the groove of the first channel 11 and the second channel 21 from leaking through the first connection hole 123.

[0054] For example, the first fastener is the bolt mentioned above. Both the third connecting hole 124 and the fourth connecting hole 222 have internal threads, and the bolt has external threads. With the cooperation of the external and internal threads, the bolt can be fixed into the third connecting hole 124 and the fourth connecting hole 222.

[0055] According to some embodiments of this utility model, refer to Figures 1-3 Along the first direction, the second connector 20 includes a plurality of second annular connectors 22 connected in sequence. Each second annular connector 22 has a second stepped surface 221 on the side facing the first connector 10. In the direction from the first connector 10 to the second connector 20, the outer diameter of the plurality of second annular connectors 22 decreases in sequence. Each second annular connector 22 has a plurality of fourth connecting holes 222, which can reduce the size of the second connector 20 and thus reduce the space occupied by the second connector 20.

[0056] Each second annular joint 22 has multiple fourth connecting holes 222, and the fourth connecting holes 222 penetrate the corresponding second annular joint 22 along the first direction. Using second fasteners inserted through the third connecting hole 124 and the fourth connecting hole 222 increases the connection strength between the first joint 10 and the second joint 20. In the direction from the first joint 10 to the second joint 20, the outer diameters of the multiple second annular joints 22 decrease sequentially. In the first direction, this also makes the size of the first connecting hole 123 shorter, facilitating the insertion and fixing of the second fasteners.

[0057] For example, there are three second annular joints 22, which are connected in sequence to form three second stepped surfaces 221 on the second joint 20.

[0058] According to some embodiments of this utility model, refer to Figures 1-3 The first connector 10 is a one-piece molded part, which not only simplifies the processing of the first connector 10, but also increases the structural strength of the first connector 10 itself; it also avoids the risk of oil leakage in the first connector 10 caused by the connection between multiple first annular connectors 12.

[0059] The second connector 20 is a one-piece molded part, which not only simplifies the processing of the second connector 20, but also increases the structural strength of the second connector 20 itself; it also avoids the risk of oil leakage in the tank on the second connector 20 due to the connection between multiple second annular connectors 22.

[0060] The heat exchange system according to a second aspect of the present invention includes: the sealing structure 100 of the first aspect of the present invention described above.

[0061] According to the heat exchange system of this utility model embodiment, by setting the above-mentioned sealing structure 100, a stepped structure is formed between the first joint 10 and the second joint 20, so that a multi-layer sealing barrier can be formed between the first joint 10 and the second joint 20. In addition, a plurality of sealing rings 30 are provided between the first joint 10 and the second joint 20. The sealing rings 30 can further seal the gap between the first joint 10 and the second joint 20 to increase the sealing performance between the first joint 10 and the second joint 20.

[0062] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sealing structure, characterized in that, include: A first connector, the first connector having a first channel, the first channel penetrating the first connector along a first direction, the first connector having a plurality of first stepped surfaces arranged around the first channel, the plurality of first stepped surfaces being spaced apart along the first direction; The second connector has a second channel that extends through the second connector along the first direction. The second connector has a plurality of second stepped surfaces arranged around the second channel. The plurality of second stepped surfaces are spaced apart along the first direction. The first connector is located inside the second channel so that the plurality of second stepped surfaces are one-to-one opposite and fit with the plurality of first stepped surfaces. The first channel and the second channel are connected. A sealing ring is provided, wherein multiple sealing rings are provided, and each sealing ring is disposed between the corresponding mating first step surface and second step surface to seal the gap between the first step surface and the second step surface.

2. The sealing structure according to claim 1, characterized in that, Each of the first step surfaces is provided with a sealing groove, and the sealing ring is located in the sealing groove.

3. The sealing structure according to claim 2, characterized in that, The sealing groove is located adjacent to the first channel.

4. The sealing structure according to claim 1, characterized in that, Along the first direction, the first connector includes a plurality of first annular connectors connected in sequence. Each first annular connector has a first stepped surface on the side facing the second connector. Each first annular connector has a through hole formed inside. The plurality of through holes are connected to form the first channel, and the diameters of the plurality of through holes are all equal. In the direction from the first connector to the second connector, the outer diameters of the plurality of first annular connectors decrease sequentially.

5. The sealing structure according to claim 4, characterized in that, The first connector is detachably connected to the liquid storage cavity. In the direction of the second connector toward the first connector, the first annular connector facing away from the second connector is detachably connected to the liquid storage cavity. The first channel communicates with the liquid storage cavity.

6. The sealing structure according to claim 5, characterized in that, Also includes: The first fastener, adjacent to the first annular connector of the liquid storage cavity, has a plurality of spaced first connection holes, the liquid storage cavity has a second connection hole opposite to the first connection hole, the first fastener passes through the first connection hole and the second connection hole to detachably connect the first connector to the liquid storage cavity, and the first connection hole is a countersunk hole.

7. The sealing structure according to claim 6, characterized in that, Also includes: The second fastener has a plurality of spaced-apart third connecting holes on the first annular connector and a fourth connecting hole opposite to the third connecting holes on the second connector. The second fastener passes through the third connecting holes and the fourth connecting holes to detachably connect the first connector and the second connector. The third connecting holes and the first connecting holes are arranged alternately around the first channel in the circumferential direction.

8. The sealing structure according to claim 1, characterized in that, Along the first direction, the second connector includes a plurality of second annular connectors connected in sequence, each second annular connector having a second stepped surface on the side facing the first connector, and the outer diameter of the plurality of second annular connectors decreasing sequentially in the direction from the first connector to the second connector, and each second annular connector having a plurality of fourth connecting holes.

9. The sealing structure according to claim 1, characterized in that, The first connector is a one-piece molded part; and / or, the second connector is a one-piece molded part.

10. A heat exchange system, characterized in that, include: The sealing structure according to any one of claims 1-9.

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