CN213871576U

CN213871576U - High-pressure self-tightening flange for pipeline

Info

Publication number: CN213871576U
Application number: CN202022219747.XU
Authority: CN
Inventors: 袁建刚; 吴朝华; 王俊; 王鑫
Original assignee: Yixing Wanhua Flange Forging Co ltd
Current assignee: Yixing Wanhua Flange Forging Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-08-03
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a high pressure is from tight flange for pipeline relates to flange technical field, for solving current high pressure is from tight flange because sealing performance is not good leads to the relatively poor problem of its stability for the pipeline. The flange is characterized in that a first flange plate is arranged on the flange body, a second flange plate is arranged below the first flange plate, a connecting portion is arranged between the second flange plate and the first flange plate, a first connecting head is fixedly arranged above the first flange plate, a second connecting head is fixedly arranged below the second flange plate, a circular groove is fixedly arranged inside the first flange plate, four circular grooves are formed in the four circular grooves, threaded holes are fixedly formed in the lower portion of the circular groove and the inside of the second flange plate, a first clamp is arranged outside the first flange plate and the second flange plate, a second clamp is arranged on one side of the first clamp, and the second clamp is fixedly connected with the first clamp through fixing bolts.

Description

High-pressure self-tightening flange for pipeline

Technical Field

The utility model relates to a flange technical field specifically is high pressure self-tightening flange for pipeline.

Background

The high-pressure self-tightening flange returns the load of the inner sealing surface of the sleeve to the lip of the sealing ring by using a unique structure to form a self-enhanced elastic seal, and has the characteristic of better sealing performance when the pressure is higher; can adapt to severe working conditions (such as alternate change of temperature and pressure, high temperature resistance and high pressure resistance); the novel flange has the advantages of small volume (about 1/3 of a common flange with the same pressure grade and the same specification), light weight (about 1/4 of the common flange with the same pressure grade and the same specification), convenience in disassembly and assembly, easiness in installation, increasing favor of the petrochemical industry in China, and gradual application under the working conditions of high temperature and high pressure.

The existing high-pressure self-tightening flange for the pipeline has poor stability due to poor sealing performance; thus, the existing requirements are not met, and a high-pressure self-tightening flange for pipelines is proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high pressure is from tight flange for pipeline to current high pressure is from tight flange for pipeline that proposes in solving above-mentioned background art leads to its relatively poor problem of stability owing to sealing performance is not good.

In order to achieve the above object, the utility model provides a following technical scheme: high pressure self-tightening flange for pipeline, including the flange body, be provided with first ring flange on the flange body, the below of first ring flange is provided with the second ring flange, be provided with connecting portion between second ring flange and the first ring flange, the fixed first connector that is provided with in top of first ring flange, the fixed second connector that is provided with in below of second ring flange, the fixed circular recess that is provided with in inside of first ring flange, and the circular recess is provided with four, four the below of circular recess and the inside of second ring flange are all fixed and are provided with the screw hole, the outside of first ring flange and second ring flange all is provided with first anchor clamps, one side of first anchor clamps is provided with the second anchor clamps, the second anchor clamps pass through fixing bolt and first anchor clamps fixed connection.

Preferably, the connecting part is fixedly connected with the second flange plate and the first flange plate through flange gaskets respectively.

Preferably, all fixedly on the outer wall of second connector and first connector be provided with the strengthening rib, and the strengthening rib is provided with a plurality of, the equal fixedly connected with pipeline of one end of second connector and first connector, the fixed air channel that is provided with of inner wall of pipeline, and the air channel is provided with fifteen.

Preferably, the outer walls of the first flange plate and the second flange plate are both fixedly provided with annular flanges, and the inner walls of the first clamp and the second clamp are both fixedly provided with annular grooves.

Preferably, a sealing member is arranged on the outer wall of the annular flange in a sealing manner, and the sealing member is positioned between the first clamp and the second clamp.

Preferably, four the inside of circular recess all is provided with locking bolt, and locking bolt's one end runs through the screw hole and extends to the outside of second ring flange, the screw thread is provided with the nut on locking bolt's the outer wall, and the nut is located the below of second ring flange.

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

1. the utility model discloses a setting of circular recess and screw hole, be convenient for locking bolt and nut carry out screw-thread fit, it is not hard up to avoid taking place after the flange body uses for a long time, the stability of flange body has been improved, the circular recess can hide locking bolt's one end, aesthetic effect has been played, spacing effect has been played simultaneously, setting through the strengthening rib, the strengthening rib can improve the intensity of second connector and first connector, through be equipped with the air channel in the pipeline, can increase the inside gaseous flow rate of pipeline, reduce the pressure that pipeline and flange body received, the life of flange body has been improved.

2. Through utilizing fixing bolt to make first anchor clamps and second anchor clamps carry out the centre gripping to the flange body, can make the annular groove with the ring flange clamp on first ring flange and the second ring flange fixed, improved the leakproofness of second ring flange and first ring flange, the sealing member can seal the gap between the ring flange.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the pipeline of the present invention.

Fig. 3 is a schematic structural view of the first clamp and the second clamp of the present invention.

Fig. 4 is a schematic diagram of the inner wall structure of the first clamp of the present invention.

In the figure: 1. a first flange plate; 2. a second flange plate; 3. a flange gasket; 4. a connecting portion; 5. locking the bolt; 6. a circular groove; 7. a nut; 8. reinforcing ribs; 9. a second connector; 10. a pipeline; 11. a vent channel; 12. a threaded hole; 13. an annular flange; 14. a first clamp; 15. a second clamp; 16. fixing the bolt; 17. a seal member; 18. a first connector; 19. a flange body; 20. an annular groove.

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.

Referring to fig. 1-4, the present invention provides an embodiment: a high-pressure self-tightening flange for a pipeline comprises a flange body 19, wherein a first flange plate 1 is arranged on the flange body 19, a second flange plate 2 is arranged below the first flange plate 1, a connecting part 4 is arranged between the second flange plate 2 and the first flange plate 1, a first connecting head 18 is fixedly arranged above the first flange plate 1, a second connecting head 9 is fixedly arranged below the second flange plate 2, a circular groove 6 is fixedly arranged inside the first flange plate 1, four circular grooves 6 are arranged, one end of a locking bolt 5 can be hidden by the circular grooves 6, the attractive effect is achieved, the limiting effect is achieved, threaded holes 12 are fixedly arranged below the four circular grooves 6 and inside the second flange plate 2, first clamps 14 are arranged outside the first flange plate 1 and the second flange plate 2, a second clamp 15 is arranged on one side of the first clamp 14, the second clamp 15 is fixedly connected to the first clamp 14 by a fixing bolt 16.

Furthermore, the connecting part 4 is fixedly connected with the second flange plate 2 and the first flange plate 1 through the flange gasket 3, and the flange gasket 3 plays a role in sealing.

Further, all fixedly on the outer wall of second connector 9 and first connector 18 being provided with strengthening rib 8, and strengthening rib 8 is provided with a plurality of, the equal fixedly connected with pipeline 10 of one end of second connector 9 and first connector 18, the fixed air channel 11 that is provided with of inner wall of pipeline 10, and air channel 11 is provided with fifteen, strengthening rib 8 can improve the intensity of second connector 9 and first connector 18, air channel 11 can increase the inside gaseous flow rate of pipeline 10, reduce the pressure that pipeline 10 and flange body 19 received, the life of flange body 19 has been improved.

Further, all fixedly on the outer wall of first ring flange 1 and second ring flange 2 being provided with annular flange 13, the inner wall of first anchor clamps 14 and second anchor clamps 15 is all fixed and is provided with annular groove 20, through the cooperation of annular groove 20 and annular flange 13 for first ring flange 1 and second ring flange 2 can press from both sides second ring flange 2 and first ring flange 1 tightly, have improved the leakproofness of second ring flange 2 and first ring flange 1.

Further, a sealing member 17 is sealingly arranged on the outer wall of the annular flange 13, and the sealing member 17 is located between the first clamp 14 and the second clamp 15, and the sealing member 17 can seal the gap between the annular flanges 13.

Further, the inside of four circular recesses 6 all is provided with locking bolt 5, and locking bolt 5's one end runs through screw hole 12 and extends to the outside of second ring flange 2, and the screw thread is provided with nut 7 on locking bolt 5's the outer wall, and nut 7 is located the below of second ring flange 2, and through locking bolt 5 and nut 7's screw-thread fit, it is not hard up to avoid flange body 19 to take place after long-time the use, has improved flange body 19's stability.

The working principle is as follows: when the flange gasket is used, the first flange plate 1 and the second flange plate 2 are connected through the connecting part 4, the flange gasket 3 plays a sealing role, the locking bolt 5 and the nut 7 are conveniently in threaded fit through the arrangement of the circular groove 6 and the threaded hole 12, the flange body 19 is prevented from loosening after long-time use, the stability of the flange body 19 is improved, one end of the locking bolt 5 can be hidden by the circular groove 6, the attractive effect is achieved, meanwhile, the limiting function is achieved, the first connector 18 and the second connector 9 are used for connecting the pipeline 10, the strength of the second connector 9 and the strength of the first connector 18 can be improved by the reinforcing ribs 8, the flow rate of gas in the pipeline 10 can be increased through the ventilation groove 11 arranged in the pipeline 10, the pressure on the pipeline 10 and the flange body 19 is reduced, the service life of the flange body 19 is prolonged, the first clamp 14 and the second clamp 15 are used for clamping the flange body 19 through the fixing bolt 16, the annular groove 20 can clamp and fix the annular flanges 13 on the first flange plate 1 and the second flange plate 2, the sealing performance of the second flange plate 2 and the first flange plate 1 is improved, and the sealing element 17 can effectively seal the gap between the annular flanges 13.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. High pressure self-tightening flange for pipeline, including flange body (19), its characterized in that: the flange is characterized in that a first flange plate (1) is arranged on the flange body (19), a second flange plate (2) is arranged below the first flange plate (1), a connecting part (4) is arranged between the second flange plate (2) and the first flange plate (1), a first connecting head (18) is fixedly arranged above the first flange plate (1), a second connecting head (9) is fixedly arranged below the second flange plate (2), circular grooves (6) are fixedly arranged inside the first flange plate (1), four circular grooves (6) are arranged inside the first flange plate, threaded holes (12) are fixedly arranged below the four circular grooves (6) and inside the second flange plate (2), first clamps (14) are arranged outside the first flange plate (1) and the second flange plate (2), and a second clamp (15) is arranged on one side of the first clamps (14), the second clamp (15) is fixedly connected with the first clamp (14) through a fixing bolt (16).

2. A high-pressure self-tightening flange for pipes according to claim 1, wherein: the connecting part (4) is fixedly connected with the second flange plate (2) and the first flange plate (1) through flange gaskets (3).

3. A high-pressure self-tightening flange for pipes according to claim 1, wherein: all fixedly on the outer wall of second connector (9) and first connector (18) be provided with strengthening rib (8), and strengthening rib (8) are provided with a plurality of, the equal fixedly connected with pipeline (10) of one end of second connector (9) and first connector (18), the inner wall of pipeline (10) is fixed and is provided with air channel (11), and air channel (11) are provided with fifteen.

4. A high-pressure self-tightening flange for pipes according to claim 1, wherein: and annular flanges (13) are fixedly arranged on the outer walls of the first flange plate (1) and the second flange plate (2), and annular grooves (20) are fixedly arranged on the inner walls of the first clamp (14) and the second clamp (15).

5. A high-pressure self-tightening flange for pipes according to claim 4, wherein: and a sealing element (17) is arranged on the outer wall of the annular flange (13) in a sealing manner, and the sealing element (17) is positioned between the first clamp (14) and the second clamp (15).

6. A high-pressure self-tightening flange for pipes according to claim 1, wherein: four the inside of circular recess (6) all is provided with locking bolt (5), and the one end through thread hole (12) of locking bolt (5) and extend to the outside of second ring flange (2), the screw thread is provided with nut (7) on the outer wall of locking bolt (5), and nut (7) are located the below of second ring flange (2).