CN211231993U

CN211231993U - Sealing assembly for valve connection

Info

Publication number: CN211231993U
Application number: CN201921956702.1U
Authority: CN
Inventors: 刘平利
Original assignee: Jiangsu Dingxing Petroleum Machinery Co ltd
Current assignee: Jiangsu Dingxing Petroleum Machinery Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-08-11
Anticipated expiration: 2029-11-13

Abstract

The utility model belongs to the technical field of the valve technique and specifically relates to a sealing assembly for valve connection, including body, case, the hand wheel of valve body and the valve body inside and lie in the first flange of body both sides, the both sides of valve body all communicate there is the second flange, the internal thread of first flange is connected with a plurality of bolt, the surface of bolt and the internal thread connection of second flange, the internal welding of first flange has first pipeline, the one end that first pipeline kept away from first flange communicates with the inside of body, the internal welding of second flange has the second pipeline; the utility model discloses an adopt first seal structure and second seal structure to strengthen the leakproofness between valve body and flange and the pipeline to ensure through the multistage seal that the fluid can not appear leaking because of external factor interference in the pipeline, and its mounting means is roughly the same with prior art, simple easy operation.

Description

Sealing assembly for valve connection

Technical Field

The utility model relates to the technical field of valves, specifically be a valve is connected and is used seal assembly.

Background

The valves are control parts in fluid conveying systems, have functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure, and the like, are used for valves of fluid control systems, from the simplest stop valves to various valves used in extremely complex automatic control systems, have quite various varieties and specifications, can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and are further divided into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard customized valves and the like according to materials.

With the acceleration of the valve industry restructuring pace, the future industry is the competition between the valve product quality safety and the product brand, products develop towards high technology, high parameter, strong corrosion resistance and long service life, the technical level of the products can be gradually improved only by continuous technical innovation, new products are developed and technical transformation is carried out, domestic device matching is met, the home-made production of the valves is completely realized, most of the existing valves are connected by flanges, the connecting mode of the flanges is simple, sealing gaskets are arranged inside the existing valves, the fluid in pipelines can be prevented from flowing out, the sealing gaskets only have one circle, and the situation of water leakage is very likely to occur under the condition that the pipelines expand with heat and contract with cold.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve is connected and is used seal assembly possesses and adopts multistage sealed, and sealed effectual advantage has solved the problem that current valve is connected and is used seal assembly seal effect easily to receive the influence.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a valve is sealing assembly for connection, includes inside body, case, the hand wheel of valve body and is located the first flange of body both sides, the both sides of valve body all communicate there is the second flange, the internal thread of first flange is connected with a plurality of bolt, the surface of bolt and the internal thread of second flange are connected, the inside welding of first flange has first pipeline, the one end that first flange was kept away from to first pipeline communicates with the inside of body, the inside welding of second flange has the second pipeline, the inside of first pipeline is equipped with first seal structure, the inside of second pipeline is equipped with second seal structure.

Preferably, the first sealing structure comprises a first groove, the first groove is formed in the side face of the first pipeline, a first sealing ring is fixedly mounted inside the first groove, a first sealing block is connected inside the first groove in a sliding mode, and one side, away from the first groove, of the first sealing block is welded to the side face of the second pipeline.

Preferably, the first sealing ring and the first groove are both in a circular ring shape, and the surface of the first sealing block is in close contact with the inside of the first groove.

Preferably, the second sealing structure comprises two second grooves, the second grooves are arranged on the side face of the second pipeline, a second sealing ring is fixedly arranged inside the second grooves, a second sealing block is connected inside the second grooves in a sliding mode, and one side, away from the second grooves, of the second sealing block is welded to the side face of the first pipeline.

Preferably, the second seal ring and the second groove are both in the shape of circular rings, and the surface of the second seal block is in close contact with the inside of the second groove.

Preferably, the first sealing block and the second sealing block are both in a circular ring shape, and the first sealing block and the second sealing block are arranged in a staggered mode.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses an adopt first seal structure and second seal structure to strengthen the leakproofness between valve body and flange and the pipeline to ensure through the multistage seal that the fluid can not appear leaking because of external factor interference in the pipeline, and its mounting means is roughly the same with prior art, simple easy operation.

Drawings

FIG. 1 is a three-dimensional schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention in partial section;

FIG. 3 is an enlarged view of a portion of the substrate of FIG. 2;

FIG. 4 is a left side view of the local structure of the present invention;

fig. 5 is a schematic diagram of the right view of the local structure of the present invention.

In the figure: 1. a valve body; 2. a pipe body; 3. a valve core; 4. a hand wheel; 5. a first flange; 6. a second flange; 7. a bolt; 8. a first conduit; 9. a second conduit; 10. a first seal structure; 101. a first seal ring; 102. a first seal block; 11. a second seal structure; 111. a second seal ring; 112. and a second seal block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a sealing assembly for valve connection comprises a valve body 1, a pipe body 2 inside the valve body 1, a valve core 3, a hand wheel 4, and first flanges 5 located at two sides of the pipe body 2, wherein two sides of the valve body 1 are both communicated with the second flanges 6, a plurality of bolts 7 are connected to the inner threads of the first flanges 5, the surfaces of the bolts 7 are connected to the inner threads of the second flanges 6, a first pipeline 8 is welded inside the first flanges 5, one end of the first pipeline 8 far away from the first flanges 5 is communicated with the inside of the pipe body 2, a second pipeline 9 is welded inside the second flanges 6, a first sealing structure 10 is arranged inside the first pipeline 8, a second sealing structure 11 is arranged inside the second pipeline 9, and the sealing performance between the valve body 1 and the flanges and the pipelines is enhanced by using the first sealing structure 10 and the second sealing structure 11, and the condition that the fluid in the pipeline is prevented from leaking due to the interference of external factors is ensured through multi-stage sealing, and the installation mode is almost the same as that of the prior art, and the multi-stage sealing device is simple and easy to operate.

In this embodiment, the first sealing structure 10 includes a first groove, the first groove is opened in the side of the first pipeline 8, the inside fixed mounting of the first groove has a first sealing ring 101, the inside sliding connection of the first groove has a first sealing block 102, one side of the first sealing block 102 away from the first groove is welded with the side of the second pipeline 9, and the joint of the first pipeline 8 and the second pipeline 9 can be sealed in one level through the cooperation of the first groove, the first sealing ring 101 and the first sealing block 102.

In this embodiment, the first seal ring 101 and the first groove are both circular ring-shaped, and the surface of the first seal block 102 is in close contact with the inside of the first groove, so that the first seal ring 101 and the first seal block 102 are convenient to mount.

In this embodiment, the second sealing structure 11 includes the second recess, the quantity of second recess is two, the second recess is seted up in the side of second pipeline 9, the inside fixed mounting of second recess has second sealing washer 111, the inside sliding connection of second recess has second sealing block 112, one side that the second recess was kept away from to second sealing block 112 welds with the side of first pipeline 8, use through the cooperation of second recess, second sealing washer 111 and second sealing block 112, can carry out the secondary seal to the junction of first pipeline 8 and second pipeline 9.

In this embodiment, the second seal ring 111 and the second groove are both circular ring shaped, and the surface of the second seal block 112 is in close contact with the inside of the second groove, so that the second seal ring 111 and the second seal block 112 are conveniently mounted.

In this embodiment, the first sealing block 102 and the second sealing block 112 are both circular ring-shaped, and the first sealing block 102 and the second sealing block 112 are staggered, so that the first sealing structure 10 and the second sealing structure 11 are staggered, and the sealing performance between the pipelines is enhanced.

When the valve is used, the first pipeline 8 and the second pipeline 9 are connected in an aligned mode, the first sealing block 102 enters the first groove, the second sealing block 112 enters the second groove, then the bolt 7 is screwed in, the first flange 5 and the second flange 6 are fixed, the first sealing block 102 is in contact with the first sealing ring 101, the second sealing block 112 is in contact with the second sealing ring 111, and then the valve can be used.

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

Claims

1. The utility model provides a valve is connected and is used seal assembly, includes body (2), case (3), hand wheel (4) and first flange (5) that are located body (2) both sides of valve body (1) and valve body (1) inside, its characterized in that: the both sides of valve body (1) all communicate there are second flange (6), the internal thread of first flange (5) is connected with a plurality of bolt (7), the surface of bolt (7) and the internal thread of second flange (6) are connected, the internal weld of first flange (5) has first pipeline (8), the one end that first flange (5) were kept away from in first pipeline (8) and the inside intercommunication of body (2), the internal weld of second flange (6) has second pipeline (9), the inside of first pipeline (8) is equipped with first seal structure (10), the inside of second pipeline (9) is equipped with second seal structure (11).

2. The seal assembly of claim 1, wherein: the first sealing structure (10) comprises a first groove, the first groove is formed in the side face of the first pipeline (8), a first sealing ring (101) is fixedly mounted inside the first groove, a first sealing block (102) is connected inside the first groove in a sliding mode, and one side, away from the first groove, of the first sealing block (102) is welded to the side face of the second pipeline (9).

3. A valve-connecting seal assembly as defined in claim 2, wherein: the first sealing ring (101) and the first groove are both in a ring shape, and the surface of the first sealing block (102) is in close contact with the inside of the first groove.

4. The seal assembly of claim 1, wherein: the second sealing structure (11) comprises two second grooves, the second grooves are arranged on the side face of the second pipeline (9), a second sealing ring (111) is fixedly arranged inside the second grooves, a second sealing block (112) is connected inside the second grooves in a sliding mode, and one side, away from the second grooves, of the second sealing block (112) is welded to the side face of the first pipeline (8).

5. The seal assembly of claim 4, wherein: the second sealing ring (111) and the second groove are both in a ring shape, and the surface of the second sealing block (112) is in close contact with the inside of the second groove.

6. A valve-connecting seal assembly as defined in claim 2, wherein: the first sealing block (102) and the second sealing block (112) are both in the shape of circular rings, and the first sealing block (102) and the second sealing block (112) are arranged in a staggered mode.