CN221880525U - Stainless steel tube with good sealing performance for nuclear power - Google Patents

Abstract

The utility model discloses a stainless steel tube with good sealing performance for nuclear power, which relates to the technical field of stainless steel tubes for nuclear power and comprises a tube body and a limiting block, wherein one end of the tube body is provided with a first connector, the other end of the tube body is provided with a second connector, an inner cavity is formed in the tube body, the limiting block is arranged on the outer wall of the first connector, and a connecting block is arranged on the outer wall of the second connector. This stainless steel pipe for nuclear power that leakproofness is good, first connector and second connector block are connected, and first sealing strip and second sealing strip closely laminate and play sealed effect, and the position of first connector and second connector is prescribe a limit to the connection of stopper and connecting block, and the removal of evacuation bond is taken out the air between stopper and the connecting block to the intracavity portion of bleeding, inserts the locating bolt inside the removal key, twists to the screwed connection sealing washer inside to this realization will hold the extraction of the inside air of storehouse, the degree of sealing between two body reinforcing.

Description

A stainless steel pipe for nuclear power with good sealing performance

Technical Field

The utility model relates to the technical field of stainless steel pipes for nuclear power, in particular to a stainless steel pipe for nuclear power with good sealing performance.

Background Art

Stainless steel pipe is a hollow long round steel, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, nuclear power, and mechanical structural components. Stainless steel pipes are divided into two categories according to the production method: seamless pipes and welded pipes. Seamless steel pipes can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes and extruded pipes.

The connections between existing stainless steel pipes for nuclear power are usually made by welding, which requires professional personnel and is time-consuming. The welding method causes inconvenience for subsequent dismantling and cannot meet actual use requirements. In addition, due to the welding craftsmanship, there is a problem of insufficient sealing.

Therefore, in view of this, the existing structure and defects are studied and improved, and a stainless steel pipe for nuclear power with good sealing performance is proposed.

Utility Model Content

The utility model aims to provide a stainless steel pipe for nuclear power with good sealing performance, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stainless steel pipe for nuclear power with good sealing performance, comprising a pipe body and a limit block, a first connecting head is arranged at one end of the pipe body, and a first sealing strip is fixedly connected to the outer wall of the first connecting head, a second connecting head is arranged at the other end of the pipe body, and a second sealing strip is fixedly connected to the outer wall of the second connecting head, an inner cavity is opened inside the pipe body, the limit block is arranged on the outer wall of the first connecting head, and the outer wall of the limit block is connected to the connecting block, the outer wall of the second connecting head is arranged with a connecting block, and the limit block and the connecting block are adapted to each other.

Furthermore, the outer wall of the first sealing strip fits with the outer wall of the second sealing strip, and the height of the top outer wall of the limiting block is consistent with the height of the top outer wall of the connecting block.

Furthermore, the outer walls of the first connector and the second connector are connected with a sealing connection assembly for sealing connection, and the sealing connection assembly includes a connecting sealing ring and a third sealing strip, and the inner wall of the connecting sealing ring is fixed with the third sealing strip.

Furthermore, the sealing connection assembly also includes a accommodating chamber and a connecting bolt. The accommodating chamber is provided inside the connecting sealing ring, and the outer wall of the connecting sealing ring is connected to the connecting bolt.

Furthermore, the limiting block and the connecting block are arranged inside the accommodating bin, and the outer walls of the limiting block and the connecting block are in contact with the third sealing strip.

Furthermore, a vacuum assembly for vacuuming is provided inside the connecting sealing ring, and the vacuum assembly includes a vacuum chamber, a vacuum key and a moving key. A vacuum key is provided inside the vacuum chamber, and the end of the vacuum key is connected to the moving key.

Furthermore, the air extraction assembly also includes a slide rail and a positioning bolt, the outer wall of the movable key is slidably connected to the slide rail, and the inner thread of the movable key is connected to the positioning bolt.

Furthermore, the slide rail is opened inside the connecting sealing ring, and the end of the positioning bolt is threadedly connected to the connecting sealing ring.

The utility model provides a stainless steel tube for nuclear power with good sealing performance, which has the following beneficial effects:

1. The stainless steel pipe for nuclear power with good sealing performance has a first connector and a second connector connected by snapping, and the first sealing strip and the second sealing strip are closely fitted to play a sealing role. The connection between the limit block and the connecting block limits the position of the first connector and the second connector to prevent the subsequent connection of the first connector and the second connector from being loose, thereby affecting the sealing effect between the first connector and the second connector.

2. The stainless steel pipe for nuclear power with good sealing performance, the movement of the evacuation key will evacuate the air between the limit block and the connecting block into the exhaust cavity, the moving key is moved to the leftmost end of the slide rail, the positioning bolt is inserted into the moving key, and it is screwed into the connecting sealing ring. The positioning bolt fixes the position of the moving key, thereby realizing the extraction of air inside the containing chamber and enhancing the sealing degree between the two tube bodies.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a front view of a stainless steel tube for nuclear power with good sealing performance according to the present invention;

FIG2 is a schematic diagram of the structure of a sealing connection ring of a stainless steel pipe for nuclear power with good sealing performance according to the utility model;

FIG3 is an enlarged structural schematic diagram of the stainless steel tube for nuclear power with good sealing performance in FIG1 ;

FIG4 is a schematic diagram of the three-dimensional structure of a first connector of a stainless steel pipe for nuclear power with good sealing performance according to the utility model.

In the figure: 1. tube body; 2. first connecting head; 3. second connecting head; 4. inner cavity; 5. first sealing strip; 6. second sealing strip; 7. limit block; 8. connecting block; 9. sealing connection assembly; 901. connecting sealing ring; 902. third sealing strip; 903. containing chamber; 904. connecting bolt; 10. vacuum assembly; 1001. vacuum cavity; 1002. vacuum key; 1003. moving key; 1004. slide rail; 1005. positioning bolt.

DETAILED DESCRIPTION

The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

As shown in Fig. 1 to Fig. 4, a stainless steel pipe for nuclear power with good sealing performance comprises a pipe body 1 and a stopper 7, a first connector 2 is arranged at one end of the pipe body 1, and a first sealing strip 5 is fixedly connected to the outer wall of the first connector 2, a second connector 3 is arranged at the other end of the pipe body 1, and a second sealing strip 6 is fixedly connected to the outer wall of the second connector 3, an inner cavity 4 is opened inside the pipe body 1, a stopper 7 is arranged on the outer wall of the first connector 2, and a connecting block 8 is connected to the outer wall of the stopper 7, a connecting block 8 is arranged on the outer wall of the second connector 3, and the stopper 7 and the connecting block 8 are adapted, the outer wall of the first sealing strip 5 and the outer wall of the second sealing strip 6 are fitted, and the top outer wall height of the stopper 7 is consistent with the top outer wall height of the connecting block 8;

The specific operation is as follows: align the first connector 2 of one tube body 1 with the second connector 3 of the other tube body 1, align the limit block 7 with the connection block 8, snap-fit the first connector 2 with the second connector 3, snap-fit the limit block 7 with the connection block 8, and fit the first sealing strip 5 on the outer wall of the first connector 2 with the second sealing strip 6 on the outer wall of the second connector 3. The first sealing strip 5 and the second sealing strip 6 are tightly fitted to achieve a sealing effect.

The connection between the limit block 7 and the connection block 8 limits the position of the first connector 2 and the second connector 3 to prevent the subsequent loose connection of the first connector 2 and the second connector 3, thereby affecting the sealing effect between the first connector 2 and the second connector 3;

As shown in FIGS. 1 to 4 , the outer walls of the first connector 2 and the second connector 3 are connected with a sealing connection assembly 9 for sealing connection, and the sealing connection assembly 9 includes a connecting sealing ring 901 and a third sealing strip 902, the inner wall of the connecting sealing ring 901 is fixed with the third sealing strip 902, the sealing connection assembly 9 also includes a accommodating bin 903 and a connecting bolt 904, the interior of the connecting sealing ring 901 is provided with the accommodating bin 903, and the outer wall of the connecting sealing ring 901 is connected with the connecting bolt 904, the limiting block 7 and the connecting block 8 are arranged in the interior of the accommodating bin 903, and the outer walls of the limiting block 7 and the connecting block 8 are in contact with the third sealing strip 902, and the connection is sealed. The sealing ring 901 is provided with an air extraction component 10 for extracting air, and the air extraction component 10 includes an air extraction cavity 1001, an air extraction key 1002 and a moving key 1003. The air extraction cavity 1001 is provided with an air extraction key 1002, and the end of the air extraction key 1002 is connected to the moving key 1003. The air extraction component 10 also includes a slide rail 1004 and a positioning bolt 1005. The outer wall of the moving key 1003 is slidably connected to the slide rail 1004, and the inner thread of the moving key 1003 is connected to the positioning bolt 1005. The slide rail 1004 is opened inside the connecting sealing ring 901, and the end of the positioning bolt 1005 is threadedly connected to the connecting sealing ring 901.

The specific operation is as follows: the connection sealing ring 901 is sleeved on the outer wall of the first connector 2 and the second connector 3, the accommodating chamber 903 accommodates the limit block 7 and the connection block 8, the connection sealing ring 901 is wrapped around the outer wall of the first connector 2 and the second connector 3, and the two ends of the connection sealing ring 901 are connected by tightening the connecting bolt 904 until the accommodating chamber 903 set on the bottom outer wall of the connection sealing ring 901 tightly wraps the outer wall of the connection between the first connector 2 and the second connector 3, so as to play a double sealing role;

After the connection sealing ring 901 is installed, the moving key 1003 is slid to the left on the outer wall of the slide rail 1004 to drive the vacuum key 1002 to move to the left. The movement of the vacuum key 1002 draws the air between the limit block 7 and the connecting block 8 into the vacuum chamber 1001. The moving key 1003 moves to the leftmost end of the slide rail 1004, and the positioning bolt 1005 is inserted into the moving key 1003 and screwed into the connection sealing ring 901. The positioning bolt 1005 fixes the position of the moving key 1003, thereby realizing the extraction of air inside the accommodating chamber 903 and enhancing the sealing degree between the two tube bodies 1.

In summary, as shown in FIGS. 1 to 4 , when the stainless steel pipe for nuclear power with good sealing performance is used, firstly, the first connector 2 of one tube body 1 and the second connector 3 of another tube body 1 are aligned, the first connector 2 and the second connector 3 are snap-connected, the limit block 7 and the connection block 8 are snap-connected, the first sealing strip 5 on the outer wall of the first connector 2 and the second sealing strip 6 on the outer wall of the second connector 3 are fitted, and the connection between the limit block 7 and the connection block 8 limits the positions of the first connector 2 and the second connector 3 to prevent the subsequent loose connection of the first connector 2 and the second connector 3;

The connecting sealing ring 901 is sleeved on the outer walls of the first connecting head 2 and the second connecting head 3, and the limiting block 7 and the connecting block 8 are accommodated inside the accommodating chamber 903. The two ends of the connecting sealing ring 901 are connected by tightening the connecting bolt 904 until the bottom outer wall of the connecting sealing ring 901 is set to tightly wrap the outer wall of the connection between the first connecting head 2 and the second connecting head 3. After the connecting sealing ring 901 is installed, the moving key 1003 is slid to the left on the outer wall of the slide rail 1004 to drive the vacuum key 1002 to move to the left. The vacuum key 1002 draws the air between the limiting block 7 and the connecting block 8 into the vacuum chamber 1001. The moving key 1003 moves to the leftmost end of the slide rail 1004, and the positioning bolt 1005 is inserted into the moving key 1003 and screwed to the inside of the connecting sealing ring 901. The positioning bolt 1005 fixes the position of the moving key 1003.

The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims (6)

1. The utility model provides a stainless steel pipe for nuclear power that leakproofness is good, includes body (1) and stopper (7), its characterized in that: the one end of body (1) is provided with first connector (2), and the outer wall fixedly connected with first sealing strip (5) of first connector (2), the other one end of body (1) is provided with second connector (3), and the outer wall fixedly connected with second sealing strip (6) of second connector (3), inner chamber (4) have been seted up to the inside of body (1), stopper (7) set up in the outer wall of first connector (2), and the outer wall connection of stopper (7) has connecting block (8), the outer wall of second connector (3) is provided with connecting block (8), and stopper (7) and connecting block (8) looks adaptation, the outer wall connection of first connector (2) and second connector (3) has sealing connection subassembly (9) that are used for carrying out sealing connection, and sealing connection subassembly (9) are including connecting sealing washer (901) and third sealing strip (902), the inner wall fixedly provided with third sealing strip (902) of connecting sealing washer (901), sealing connection subassembly (9) still include holding storehouse (903) and connecting plug (904), the inside of connecting plug (901) has been seted up and has been connected sealing washer (904).

2. The stainless steel tube with good sealing performance for nuclear power according to claim 1, wherein: the outer wall of the first sealing strip (5) is attached to the outer wall of the second sealing strip (6), and the height of the top outer wall of the limiting block (7) is consistent with that of the top outer wall of the connecting block (8).

3. The stainless steel tube with good sealing performance for nuclear power according to claim 1, wherein: the limiting block (7) and the connecting block (8) are arranged in the accommodating bin (903), and the outer walls of the limiting block (7) and the connecting block (8) are attached to the third sealing strip (902).

4. The stainless steel tube with good sealing performance for nuclear power according to claim 1, wherein: the inside of connecting sealing washer (901) is provided with bleed subassembly (10) that are used for carrying out bleeding, and bleed subassembly (10) are including gas chamber (1001), evacuation key (1002) and removal key (1003), the inside in gas chamber (1001) is provided with evacuation key (1002), and the end connection of evacuation key (1002) has removal key (1003).

5. The stainless steel tube with good sealing performance for nuclear power according to claim 4, wherein: the air extraction assembly (10) further comprises a sliding rail (1004) and a positioning bolt (1005), the sliding rail (1004) is connected to the outer wall of the movable key (1003) in a sliding mode, and the positioning bolt (1005) is connected to the inner thread of the movable key (1003).

6. The stainless steel tube with good sealing performance for nuclear power according to claim 5, wherein: the sliding rail (1004) is arranged inside the connecting sealing ring (901), and the end part of the positioning bolt (1005) is connected with the connecting sealing ring (901) in a threaded mode.