CN112236006B - Combined server rack structure and its connection method - Google Patents

Abstract

The invention provides a combined server rack structure and a connecting method thereof, aiming at solving the technical problems that a water cooling source can be efficiently utilized and can be efficiently and safely utilized in a server heat dissipation problem solution in the prior art. The server rack bearing plate comprises a plurality of bearing plates, a plurality of first longitudinal beams, a plurality of cooling structures and a plurality of second longitudinal beams, wherein the bearing plates can be arranged along the height direction of the first longitudinal beams, and the bearing plates and the first longitudinal beams can form a server rack bearing plate in a multilayer arrangement; each layer of the server rack at least comprises a first longitudinal beam provided with an overflowing water channel; the end part of the overflowing water channel is provided with a second connecting structure; the first connecting structure can be connected with the second connecting structure through a sealing component. The technical scheme of the invention has the advantages of high heat dissipation efficiency of the server, maximum use of the refrigerant medium and safe and reliable sealing assembly.

Description

Combined server rack structure and its connection method

technical field

The invention relates to the technical field of network communication equipment, in particular to a combined server rack structure and a connection method thereof.

Background technique

Under the current trend, with the rapid development of the Internet, various emerging intelligent industries have been continuously upgraded, and gradually entered the period of rapid development of the Internet of Things. The mainstream of market development and the market demand in this environment continue to stimulate the market prosperity of this server, because, with the technological breakthrough of big data, more stable hardware equipment is required to achieve, and all data storage and computing functions require servers. Therefore, for a large number of websites, service platforms, etc., a huge number of servers are required to form a larger-scale computer room to ensure the stability of data services and prevent crashes caused by excessive access traffic. and loss of users.

In the current method, the requirements for big data servers are: most of these servers need to run uninterrupted 24 hours a day. The problem caused by uninterrupted operation is that the heat emitted by the server needs to be effectively controlled, otherwise the overheating of the server will eventually This leads to the self-protection of the server being shut down and the transfer of the server, which will reduce the work efficiency and increase the maintenance cost. The usual methods include using air-conditioning equipment to cool down the indoor temperature, or changing the indoor pattern to achieve effective heat dissipation; however, , When the number of server cabinets is large and is arranged in a relatively densely installed computer room, the effect of cooling by changing the indoor temperature is limited. In the method of using water cooling as the cold source to control the temperature of the server, the installation difficulty and application difficulty will be caused by the configuration of the specific water cooling system. The installation difficulty is mainly reflected in the configuration of the cooling components and pipelines of the water cooling system. The application difficulty lies in the fact that when dealing with the leakage of the water cooling system, it increases the accidental damage to the server by the water cooling source. The sealing performance of the water cooling system is poor, but the water cooling source is still From the perspective of the number of servers, the optimal solution is densely arranged, and the prior art lacks a suitable configuration method for using water cooling as a cooling source for heat dissipation of servers and related facilities.

SUMMARY OF THE INVENTION

The invention aims to solve the technical problem in the prior art that a water-cooled cold source can be efficiently utilized, and the water-cooled cold source can be efficiently and safely used in the solution of the server heat dissipation problem, and a combined server rack structure and its connection method.

In order to solve the above-mentioned technical problems, the technical scheme of the present invention is as follows:

First, the present invention proposes a combined server rack structure, including:

a plurality of first stringers;

A plurality of carrying trays can be arranged along the height direction of the plurality of first longitudinal beams, and can form a multi-layered server rack with the plurality of first longitudinal beams;

Any one of the carrying plates has a cooling structure, and the cooling structure can circulate a cooling medium, so that the area of the carrying plate can be used as a contact area of the cooling source;

an overflow channel, each layer of the server rack includes at least one first longitudinal beam provided with the overflow channel;

Any one of the carrying trays includes at least two sets of first connection structures;

The end of the flow passage is configured with a second connection structure;

The first connection structure can be connected with the second connection structure through a sealing assembly, so that the cooling medium can circulate in the overflow water channel and the cooling structure.

Further, the second connecting structure extends toward the direction of the carrying plate, and protrudes from the side of the first longitudinal beam provided with the flow passage.

Further, after the extension lines of each side of the carrying plate intersect, it is in a virtual square;

Wherein, the four corner end positions of the carrying plate form a right-angle structure, so that the plane of the carrying plate is cross-shaped;

The right-angle structure is used for arranging the first longitudinal beam.

Further, the carrier plate is constructed in a hollow shape, and the hollow shape is used as the cooling structure, so that when the cooling medium flows into the cooling structure, the surface area of the carrier plate serves as the main body of the cooling source.

Further, the first connection structure is arranged at the right-angle structure;

When the first connection structure and the second connection structure are connected by a sealing assembly, the first longitudinal beam can form the virtual square with the cross section of the carrier plate.

Further, the first connection structure includes:

A first connecting pipe, one end of which is connected to the over-flow water channel, and is connected with the over-flow channel

The first longitudinal beam of the water channel is vertical, and the other end forms a first sealing end;

The second connection structure includes:

a second connecting pipe, one end of which is communicated with the cooling structure, the axis of which is located on the plane of the carrying plate, and the other end of which forms a second sealing end;

The diameter of the first connecting pipe is the same as that of the second connecting pipe;

The outer diameters of the first sealing end and the second sealing end are the same;

External threads are formed on the outer peripheries of the first sealing end and the second sealing end;

a connecting ring, which can be partially screwed on the outer periphery of the second sealing end and the first sealing end.

Further, the sealing assembly can be installed between the first sealing end and the second sealing end, so that the first sealing end and the second sealing end maintain a predetermined distance;

the largest geometric diameter of the seal assembly is the same as the diameter of the first seal end;

The portion of the sealing assembly having the largest geometric diameter is provided with an external thread, so that the connecting ring can be screwed on the sealing assembly, the first sealing end and the second sealing end at the same time.

Further, the sealing assembly includes:

a first water-retaining ring, the first end of which is partially embedded in the first sealing end, and a first gap is formed between the first sealing end and the first gap, and a gasket is arranged in the first gap;

a second water retaining ring, the second end of which is partially embedded in the second sealing end, and has a threaded end located between the first sealing end and the second sealing end;

The first end of the main sealing part is in contact with the second end of the water barrier ring and the gasket, the second end part of the main sealing part is in contact with the second sealing end, and the outer peripheral part of the main sealing part is in contact with the second water barrier ring ;

a snap portion connected to the primary seal portion and capable of being partially snapped into the second seal end; and

The filling structure is connected between the first water blocking ring, the second water blocking ring and the main sealing part, and forms a chamber with a bent cross section.

Further, the filling structure includes:

a first filler, which can be partially snapped into the outer periphery of the main sealing part and can be partially in contact with the second water barrier;

a second filler, which is partially snapped into the first water barrier and the threaded end;

a third filling piece, the first end part of which can be snapped into the second filling piece, and the other part is abutted with the second filling piece;

The second end of the third filler can be snapped into the second water retaining ring;

The bending extension part is configured on the main sealing part, so as to separate the third packing part, the second packing part and the first packing part, and form the cavity with a bent cross section.

Thirdly, the present invention proposes a connection method for a combined server rack structure, including the following steps:

The first step is to completely screw the connecting ring on the outer circumference of the second sealing end;

In the second step, the gasket and the first water-retaining ring are sequentially prefabricated through the sealant at the first sealing end, and then the first filler is installed;

The third step is to prefabricate the main sealing part, the clamping part and the second water retaining ring on the second sealing end, and then prefabricate the third packing part and the second filling part on the second water retaining ring, and then prefabricate the third filling part and the second filling part on the second water retaining ring. The parts cooperate with the installation to form a sealing assembly;

At this time, the test is carried out by dripping water in the bent chamber formed by the sealing assembly to check whether the sealing assembly has leakage.

The fourth step is to connect the sealing assembly with the first sealing end, and then adjust the connecting ring so that the connecting ring can be screwed on the outer peripheries of the first sealing end and the second sealing end at the same time.

The present invention has the following beneficial effects:

First, the distance between the server rack and the server is closer, and it is arranged around the server, so that every small space of the server becomes a small unit for heat dissipation and temperature control. It is equivalent to the cooling position of its own cross-section, and the cooling medium flows continuously, which can directly and effectively dissipate heat.

In the second aspect, the independently configured first connection structure and the second connection structure can effectively form a seal by cooperating with the sealing assembly, further ensuring the safety of the technical solution;

In the third aspect, the technical solution has the characteristics of flexible assembly, large cooling area, good cooling effect, etc. It is relatively easier to manufacture and does not bring trouble to assembly, and is especially suitable for combined cabinets;

In the fourth aspect, when there are many cabinets, the cooling position is divided into multiple small units in this technical solution, so after the indoor air conditioner and the fan configured by the server itself, the heat dissipation effect is better, and the cooling medium can be circulated. use, will not cause waste;

The combined server rack structure is easy to clean and maintain after dismantling, and can better control the cost paid later.

In the fifth aspect, by arranging the first sealing end and the second sealing end, the structure of the sealing assembly 50 can be better matched, and the first connecting pipe and the second connecting pipe are connected by a connecting ring. This connection method is quite fast, but Due to the sealing of the sealing components, the technical solution can achieve a good sealing effect; the main sealing part, the first water barrier ring, the second water barrier ring, and the filling structure, under the cooperation of various components, can perform a closed space and effectively The effect of preventing leakage is achieved.

To sum up, the technical solution of the present application has the advantages of efficient heat dissipation of the server, maximum use of the cooling medium, and safe and reliable sealing components.

Description of drawings

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is the schematic diagram of the arrangement and connection of the first longitudinal beam of the name of the present invention and the carrier plate;

Fig. 2 is the structural representation of the sealing assembly of the name of the present invention;

The reference numbers in the figures are indicated as:

The first longitudinal beam 100, the carrier plate 200, the cooling structure 30, the flow channel 40;

a first connection structure 10, a second connection structure 20, and a sealing assembly 50;

the first nozzle 110, the second nozzle 210, and the connecting ring 310;

The first water retaining ring 511 and the gasket 512;

The second water blocking ring 521, the main sealing portion 531, the threaded end 522, the retaining portion 532, and the filling structure 60;

The first filler 611 , the second filler 612 , the third filler 613 , and the bending extension 614 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention; it should be noted that, for the convenience of description, in this application, In the current view, the "left side" is the "first end", the "right side" is the "second end", the "upper side" is the "first end", and the "lower side" is the "second end", so described The purpose is to clearly express the technical solution, which should not be construed as an improper limitation of the technical solution of the present application.

The purpose of the present invention is to propose a technical problem that can efficiently utilize the water-cooled cold source, and utilize the water-cooled cold source efficiently and safely in the solution to the heat dissipation problem of the server. The water-cooled cold source here is the one mentioned in this application. As for the cooling medium, it can be understood that water cooling is only a reference implementation, and does not exclude the use of other cooling mediums.

1-2, the combined server rack structure includes: a plurality of first longitudinal beams 100; The first longitudinal beam 100 can form a server rack in a multi-layer arrangement; the idea here is to use the entire server rack structure as a part of the cooling system, so that the heat dissipation configuration and cooling pipeline configuration of the cooling system can be greatly reduced. type server rack, a longitudinal beam, that is, the arrangement of the first longitudinal beam 100 and the carrying tray 200 mentioned in this application, is used as the main structure of the entire server rack. Obviously, it can also include, for example, a second longitudinal beam It is only used as a supporting component, and obviously the beam components such as the second longitudinal beam belong to the common connection methods in the prior art, and will not be repeated here;

Any one of the carrier trays 200 has a cooling structure 30 that can circulate a cooling medium, so that the area of the carrier tray 200 can be used as a contact area for the cooling source; the carrier tray 200 is used to place the server box.

The overflow channel 40, each layer of the server rack includes at least one first longitudinal beam 100 provided with an overflow channel 40; by improving the structure of the first longitudinal beam 100, it has an overflow channel 40, which is a refrigerant The media provides a circulation channel throughout the server cabinet;

Further, any one of the carrying trays 200 includes at least two sets of first connection structures 10 ; the end of the flow channel 40 is configured with a second connection structure 20 ; the first connection structure 10 can pass a seal with the second connection structure 20 . The assemblies 50 are connected to enable the cooling medium to circulate in the overflow channel 40 and the cooling structure 30 . In this configuration, it is obvious that the entire server rack structure is directly used as a cooling component. The advantage is that the distance between the server rack and the server is closer, and it is arranged around the server, so that every small space of the server becomes a small space for heat dissipation and temperature control. Unit, the most direct is that the carrier plate 200 can have the largest cooling position, which is equivalent to its own cross-section, and the cooling medium continuously flows, which can directly and effectively dissipate heat.

Further, the independently configured first connection structure 10 and the second connection structure 20 can effectively form a seal through the cooperation with the sealing assembly 50, which further ensures the safety of the technical solution;

Obviously, this technical solution has the characteristics of flexible assembly, large cooling area, good cooling effect, etc. It is relatively easier to manufacture and does not bring trouble to assembly, and is especially suitable for combined cabinets;

When there are many cabinets, this technical solution divides the cooling position into multiple small units. In this way, after the indoor air conditioner and the fan configured by the server itself, the heat dissipation effect is better, and the cooling medium can be recycled without cause waste;

The combined server rack structure is easy to clean and maintain after dismantling, and can better control the cost paid later.

Referring to FIGS. 1-2 , the second connecting structure 20 extends toward the direction of the carrier plate 200 and protrudes from the side of the first longitudinal beam 100 provided with the flow channel 40 . This configuration can make it easier for assemblers to identify the difference between the first longitudinal beam and the general longitudinal beam, which is beneficial to manufacture and quick installation.

Please refer to FIGS. 1-2 , after the extension lines of the sides of the carrier plate 200 intersect, it forms a virtual square; wherein, the four corner end positions of the carrier plate 200 form a right-angle structure, so that the plane of the carrier plate 200 is in the shape of a right angle. Cross-shaped; right-angle structure is used for arranging the first longitudinal beam 100; this configuration can make the appearance of the technical solution closer to the general server cabinet after the assembly is completed, so that the server cabinet will not be placed together with other server cabinets. , more uniform.

1-2, the carrier plate 200 is constructed in a hollow shape, and the hollow shape is used as the cooling structure 30, so that when the cooling medium flows into the cooling structure 30, the surface area of the carrier plate 200 serves as the main body of the cooling source.

The hollow structure can greatly provide the position of heat dissipation, which makes the temperature control effect better.

1-2, the first connecting structure 10 is arranged at a right-angle structure; when the first connecting structure 10 and the second connecting structure 20 are connected by a sealing assembly 50, the first longitudinal beam 100 can The section forms a virtual square.

In a specific embodiment, referring to FIGS. 1-2, the first connection structure 100 includes:

The first nozzle 110, one end of which is connected to the flow channel 40, is perpendicular to the first longitudinal beam 100 provided with the flow channel, and the other end forms a first sealing end;

The second connection structure 200 includes:

The second nozzle 210, one end of which is connected to the cooling structure 30, the axis of which is located on the plane of the carrier plate 200, and the other end of which constitutes a second sealing end;

The diameters of the first connecting pipe 110 and the second connecting pipe 210 are the same;

The outer diameters of the first sealing end and the second sealing end are the same;

The outer peripheries of the first sealing end and the second sealing end are configured with external threads;

The connecting ring 310 can be partially screwed on the outer periphery of the second sealing end and the first sealing end.

By arranging the first sealing end and the second sealing end, the structure of the sealing assembly 50 can be better matched, and the first connecting pipe and the second connecting pipe are connected through the connecting ring 310. This connection method is quite fast, but due to the sealing assembly 50 of the sealing, the technical solution can achieve a good sealing effect.

More specifically, as shown in FIG. 2 , the sealing assembly 50 can be installed between the first sealing end and the second sealing end, so that the first sealing end and the second sealing end maintain a predetermined distance; the sealing assembly 50 The maximum geometric diameter of the seal assembly 50 is the same as the diameter of the first sealing end; the part of the sealing assembly 50 with the largest geometric diameter is provided with an external thread, so that the connecting ring 310 can be screwed on the sealing assembly 50, the first sealing end and the second sealing end at the same time.

For a detailed description of the structure of the sealing assembly 50, please refer to FIG. 2. The sealing assembly 50 includes: a first water barrier ring 511, the first end of which is partially embedded in the first sealing end, and is connected to the first sealing end. A first gap is formed between them, and a washer 512 is arranged in the first gap; a second water-retaining ring 521, the second end of which is partially embedded in the second sealing end, has a threaded end 522, which is located at the first between the sealed end and the second sealed end;

The first end of the main sealing part 531 is in contact with the second end of the water barrier 511 and the gasket, the second end part contacts the second sealing end, and its outer peripheral part contacts the second water barrier 521; the locking part 532 , which is connected to the main sealing part 531 and can be partially snapped into the second sealing end; and a filling structure 60 which is connected between the first water blocking ring 511 , the second water blocking ring 521 and the main sealing part 531 , and A chamber with a curved section is constructed.

The first sealing end is matched with the first water blocking ring 511, the second sealing end is configured with the second water blocking ring, the basic sealing structure is realized by the main sealing part 531, and the filling structure 60 is used for filling and matching, so that the first sealing The water blocking ring 511, the second water blocking ring 521 and the main sealing part 531 can be stable and firm, and the filling structure 60 also forms a bent chamber when viewed in the cross-sectional direction when the above three main components cooperate. Similar to the character "Ji", after the folded chamber is closed, due to its bending characteristics, with the cooperation of various components, it can perform a closed space and effectively achieve the effect of preventing leakage.

Referring to FIG. 2 , the filling structure 60 includes: a first filling member 611 , which can be partially snapped into the outer periphery of the main sealing portion 531 and can be partially in contact with the second water barrier 521 ; a second filling member 612 , which is partially Snap into the first water retaining ring 511 and the threaded end 522; the third filler 613, the first end of which can be snapped into the second filler 612, and the other part abuts against the second filler 612; the third filler 613 The second end of the seal can be snapped into the second water retaining ring 521; the extension part 614 is bent and constructed on the main sealing part 531 to separate the third packing 613, the second packing 612 and the first packing 611 , and form a chamber with a bent cross-section.

It should be noted that, when selecting the material of the above-mentioned sealing component 50, ABS resin, polytetrafluoroethylene, etc. in the prior art can be selected, and the selection range is wider, which is beneficial to cost control.

In addition, when the application is assembled, the connection method of the combined server rack structure includes the following steps:

In the first step, the connecting ring 310 is completely screwed on the outer circumference of the second sealing end;

In the second step, the gasket 512 and the first water-retaining ring 511 are sequentially prefabricated at the first sealing end through the sealant, and then the first filler 611 is installed;

The third step is to prefabricate the main sealing part 531 , the retaining part 532 and the second water blocking ring 521 on the second sealing end, and then prefabricate the third packing part 613 and the second filling part 612 on the second water blocking ring 521 , and then cooperate with the third filler 531 to form a sealing assembly;

At this time, the test is carried out by dripping water in the bent chamber formed by the sealing assembly to check whether the sealing assembly has leakage.

In the fourth step, the sealing assembly is matched with the first sealing end, and the connecting ring 310 is then adjusted so that the connecting ring 310 can be screwed on the outer circumferences of the first sealing end and the second sealing end at the same time.

To sum up, the technical solution of the present application has the advantages of efficient heat dissipation of the server, maximum use of the cooling medium, and safe and reliable sealing components.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (2)

1. The combined server rack structure is characterized in that, comprising: a plurality of first stringers (100); A plurality of carrying trays (200) can be arranged along the height direction of the plurality of first longitudinal beams (100), And the plurality of first longitudinal beams (100) can form a multi-layered server rack; Any one of the carrier plates (200) has a cooling structure (30), and the cooling structure (30) can circulate a cooling medium, so that the area of the carrier plate (200) can be used as a contact area of the cooling source; a flow passage (40), each layer of the server rack includes at least one first longitudinal beam (100) provided with the flow passage (40); Any one of the carrying trays (200) includes at least two sets of first connection structures (10); A second connection structure (20) is configured at the end of the flow passage (40); The first connection structure (10) can be connected with the second connection structure (20) through a sealing assembly (50), so that the cooling medium can be connected between the flow channel (40) and the cooling structure (30) medium circulation; The second connecting structure (20) extends toward the direction of the carrying plate (200), and protrudes from the side of the first longitudinal beam (100) provided with the flow passage (40); After the extension lines of each side of the carrying plate (200) intersect, it forms a virtual square; Wherein, the four corner end positions of the carrier plate (200) form a right-angle structure, so that the plane of the carrier plate (200) is cross-shaped; The right-angle structure is used for arranging the first longitudinal beam (100); The carrier plate (200) is constructed in a hollow shape, and the hollow shape is used as the cooling structure (30), so that when the cooling medium flows into the cooling structure (30), the The surface area is the main body of the cold source; the first connecting structure (10) is arranged at the right-angle structure; When the first connection structure (10) and the second connection structure (20) are connected through a sealing assembly (50), the first longitudinal beam (100) can be formed with the cross section of the carrier plate (200). the virtual square; The first connection structure (10) includes: a first connecting pipe (110), one end of which is connected to the overflow water channel (40) and is perpendicular to the first longitudinal beam (100) provided with the overflow water channel, and the other end of which forms a first sealing end; The second connection structure (20) includes: a second nozzle (210), one end of which is communicated with the cooling structure (30), the axis of which is located on the plane of the carrier plate (200), and the other end of which forms a second sealing end; The diameter of the first pipe (110) and the second pipe (210) are the same; The outer diameters of the first sealing end and the second sealing end are the same; External threads are formed on the outer peripheries of the first sealing end and the second sealing end; a connecting ring (310), which can be partially screwed on the outer peripheries of the second sealing end and the first sealing end; The sealing assembly (50) can be installed between the first sealing end and the second sealing end, so as to maintain a predetermined distance between the first sealing end and the second sealing end; The maximum geometric diameter of the sealing assembly (50) is the same as the diameter of the first sealing end; The part of the sealing assembly (50) with the largest geometric diameter is provided with an external thread, so that the connecting ring (310) can be screwed on the sealing assembly (50), the first sealing end and the first sealing end at the same time. Two sealed ends; The sealing assembly (50) includes: A first water retaining ring (511), the first end of which is partially embedded in the first sealing end, and a first gap is formed between the first sealing end and the first sealing end, and a gasket (512) is arranged in the first gap ; The second water retaining ring (521), the second end of which is partially embedded in the second sealing end, has a threaded end (522) located at the first sealing end and the second sealing end between sealed ends; The first end of the main sealing part (531) is in contact with the second end of the water retaining ring (511) and the gasket, the second end part contacts the second sealing end, and the outer peripheral part contacts the second end. Describe the second water barrier ring (521); a snap-in portion (532), which is connected to the main sealing portion (531) and can be partially snapped into the second sealing end; and A filling structure (60) is connected between the first water barrier ring (511), the second water barrier ring (521) and the main sealing part (531), and forms a curved cross-section Chamber; The filling structure (60) includes: a first filler (611), which can be partially snapped into the outer periphery of the main sealing portion (531), and can be partially in contact with the second water blocking ring (521); a second filler (612), a part of which is snapped into the first water barrier (511) and the threaded end (522); A third filler (613), the first end portion of which can be snapped into the second filler (612), and the other part abuts against the second filler (612); The second end of the third filler (613) can be snapped into the second water barrier (521); a bent extension (614) configured on the main seal (531) to separate the third packing (613), the second packing (612) from the first packing (611), and forming the chamber with a bent cross section. 2. a connection method to the described combined server rack structure of claim 1, is characterized in that, comprises the steps: In the first step, the connecting ring (310) is completely screwed on the outer circumference of the second sealing end; In the second step, the gasket (512) and the first water retaining ring (511) are sequentially prefabricated at the first sealing end through sealant, and then the first filler (611) is installed; In the third step, the main sealing part (531), the clamping part (532) and the second water blocking ring (521) are prefabricated on the second sealing end, and then the third packing part (613), the second packing part (612) are prefabricated on the second sealing end. ) is prefabricated on the second water retaining ring (521), and then assembled with the third filler (531) to form a sealing assembly; At this time, the test is carried out by dripping water in the bent chamber formed by the sealing assembly to check whether there is any leakage in the sealing assembly; The fourth step is to connect the sealing assembly with the first sealing end, and then adjust the connecting ring (310) so that the connecting ring (310) can be screwed on the outer peripheries of the first sealing end and the second sealing end at the same time.

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