CN216279911U

CN216279911U - Insulating flange capable of improving sealing performance

Info

Publication number: CN216279911U
Application number: CN202122885651.1U
Authority: CN
Inventors: 朱进华
Original assignee: Nantong Haoyang Precision Machinery Co ltd
Current assignee: Nantong Haoyang Precision Machinery Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-04-12
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses an insulating flange capable of improving sealing performance, relates to the technical field of insulating flanges, and aims to solve the problem that although the service lives of pipelines and equipment can be prolonged by the existing insulating flange in the prior art, part of sealing performance is lost on the premise of improving the insulating function, so that the service life of the flange is reduced to some extent. First pipe box flange includes the main interface central siphon, and second pipe box flange includes vice interface central siphon, the inside of vice interface central siphon and main interface central siphon is provided with the medium flow chamber, and the one end of vice interface central siphon and main interface central siphon is provided with the bell pipe end interface, the outside of vice interface central siphon and the main interface central siphon other end all is provided with the metal ring flange, and metal ring flange and vice interface central siphon and main interface central siphon welded connection, be provided with between the metal ring flange and cut off the rubber ring, and the surface of metal ring flange is provided with the screw.

Description

Insulating flange capable of improving sealing performance

Technical Field

The utility model relates to the technical field of insulating flanges, in particular to an insulating flange capable of improving sealing performance.

Background

The insulating flange is a general name for a pipeline flange joint which simultaneously has the sealing performance required by a buried steel pipeline and the electric insulating performance required by an electrical corrosion protection project, is mainly applied between a gas transmission and distribution pipeline and gas pressure regulating, metering, storing and other equipment, and has the main functions of insulating and isolating each section of the gas transmission and distribution pipeline and the equipment and the pipeline from each other, protecting the gas transmission and distribution pipeline from chemical corrosion and prolonging the service life of the pipeline and the equipment.

However, although the service life of the existing insulating flange can be prolonged, a part of sealing performance is lost on the premise of improving the insulating function, which leads to the reduction of the service life of the flange; therefore, the existing requirements are not satisfied, and an insulating flange capable of improving the sealing performance is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an insulating flange capable of improving sealing performance, and aims to solve the problem that although the service life of a pipeline and equipment can be prolonged, part of sealing performance is lost on the premise of improving the insulating function, so that the service life of the flange is reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an insulating flange that can improve sealing performance, includes first pipe box flange and second pipe box flange, first pipe box flange includes main interface central siphon, and second pipe box flange includes vice interface central siphon, the inside of vice interface central siphon and main interface central siphon is provided with the medium flow chamber, and the one end of vice interface central siphon and main interface central siphon is provided with the bell pipe end interface, the outside of vice interface central siphon and the main interface central siphon other end all is provided with the metal ring flange, and metal ring flange and vice interface central siphon and main interface central siphon welded connection, be provided with between the metal ring flange and cut off the rubber ring, and the surface of metal ring flange is provided with the screw.

Preferably, the metal flange plates are connected through bridging bolts, the partition rubber ring is connected with the bridging bolts in a combined mode, and the partition rubber ring is connected with the metal flange plates in an attached mode.

Preferably, the other end of the main interface shaft tube is provided with a liner ring tube, the outer side of the liner ring tube is provided with an insulating ring tube, and the insulating ring tube, the liner ring tube and the main interface shaft tube are of an integrated structure.

Preferably, the other end of the auxiliary interface shaft tube is provided with an inner liner tube opening groove, the inner liner ring tube is attached to the inner liner tube opening groove, the outer side of the inner liner tube opening groove is provided with a plug tube opening groove, and the insulating ring tube is attached to the plug tube opening groove.

Preferably, the rubber patch is arranged in the socket groove and connected with the auxiliary interface shaft tube through a clamping groove.

Preferably, the outer surfaces of the liner ring pipe and the insulating ring pipe are provided with metal ring grains.

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

1. the interface end of the main interface shaft tube consists of two groups of ring tubes, and the interface end of the corresponding auxiliary interface shaft tube is of two groups of tube opening groove structures, so that a staggered tube body interface structure can be formed in the process of butt joint and combination of the shaft tubes, wherein metal ring grains are arranged on the outer surfaces of the liner ring tube and the insulating ring tube, so that the friction force between the ring tubes and the tube opening grooves to date can be increased, the sealing performance of a joint can be improved by matching with the staggered tube opening interfaces, meanwhile, rubber patches are arranged in the insertion tube opening grooves and are positioned on the two sides of the liner ring tube and cannot be directly contacted with a medium, and the electric conductivity of the tube interface can be cut off;

2. the utility model completes the fixation through the bridging bolt, the partition rubber ring is arranged between the flange plates, and the partition rubber ring is used for keeping a certain gap distance between the two groups of flange plates to avoid direct contact, thereby avoiding the diffusion and conduction of current.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of a main interface shaft tube of the present invention;

fig. 3 is a cross-sectional view of the bottom bracket axle tube of the present invention.

In the figure: 1. a first pipe sleeve flange; 2. a second pipe sleeve flange; 3. a secondary interface shaft tube; 4. a main interface shaft tube; 5. a media flow chamber; 6. a metal flange plate; 7. a bridge bolt; 8. a partition rubber ring; 9. an insulating collar; 10. a liner ring pipe; 11. a tapered tube end interface; 12. an inner bile duct orifice groove; 13. a pipe orifice inserting groove; 14. a rubber patch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, an embodiment of the present invention: an insulating flange capable of improving sealing performance comprises a first pipe sleeve flange 1 and a second pipe sleeve flange 2, wherein the first pipe sleeve flange 1 comprises a main interface shaft pipe 4, the second pipe sleeve flange 2 comprises an auxiliary interface shaft pipe 3, a medium flow cavity 5 is arranged inside the auxiliary interface shaft pipe 3 and the main interface shaft pipe 4, one end of the auxiliary interface shaft pipe 3 and one end of the main interface shaft pipe 4 are provided with a conical pipe end interface 11, the outer sides of the other ends of the auxiliary interface shaft pipe 3 and the main interface shaft pipe 4 are respectively provided with a metal flange plate 6, the metal flange plates 6 are welded with the auxiliary interface shaft pipe 3 and the main interface shaft pipe 4, a partition rubber ring 8 is arranged between the metal flange plates 6, the outer surfaces of the metal flange plates 6 are provided with screw holes, the metal flange plates 6 are connected through bridging bolts 7, the partition rubber ring 8 is combined and connected with the bridging bolts 7, and the partition rubber ring 8 is attached to the metal flange plates 6, the pipeline that needs the bridging is aimed at to the toper pipe end interface 11 with first

pipe box flange

1 and 2 one ends of second pipe box flange is installed, can adopt the mode of welding or hoop to fix, then aim at metal flange 6 and laminate, accomplish fixedly through the bridging bolt, be provided with between the ring flange and cut off rubber ring 8, utilize to cut off rubber ring 8 and be keeping certain clearance distance between two sets of ring flanges, avoid direct contact, can avoid the diffusion conduction of electric current like this.

Referring to fig. 2-3, the other end of the main interface shaft tube 4 is provided with a liner ring tube 10, the outer side of the liner ring tube 10 is provided with an insulating ring tube 9, the insulating ring tube 9 and the liner ring tube 10 are integrated with the main interface shaft tube 4, the other end of the sub interface shaft tube 3 is provided with a liner orifice groove 12, the liner ring tube 10 is attached to the liner orifice groove 12, the outer side of the liner orifice groove 12 is provided with a socket orifice groove 13, the insulating ring tube 9 is attached to the socket orifice groove 13, the inside of the socket orifice groove 13 is provided with a rubber patch 14, the rubber patch 14 is connected to the sub interface shaft tube 3 through a clamping groove, the outer surfaces of the liner ring tube 10 and the insulating ring tube 9 are provided with metal ring grains, the interface end of the main interface shaft tube 4 is composed of two sets of ring tubes, and the interface end of the corresponding sub interface shaft tube 3 is of two sets of orifice groove structures, so that an interlaced tube interface structure can be formed during the butt-joint combination of the shaft tubes, wherein inner bag ring pipe 10 and insulating ring pipe 9 surface are provided with the metal ring line, can increase the frictional force of ring pipe and pipe orifice groove up to now, and the leakproofness of junction can be promoted to the crisscross mouth of pipe interface of cooperation, is provided with rubber paster 14 in the inside of interface of socket pipe 13 simultaneously, and rubber paster 14 is located the both sides of inner bag ring pipe 10, can not direct and medium contact, can cut off the electric conductivity of pipeline kneck.

The working principle is as follows: when the pipe joint is used, the tapered pipe end interface 11 at one end of the first pipe sleeve flange 1 and the second pipe sleeve flange 2 is aligned with a pipeline to be bridged for installation, and can be fixed by adopting a welding or hoop mode, then the metal flange 6 is aligned and attached, in the process of attaching, the interface end of the main interface shaft pipe 4 needs to be noticed to be composed of two groups of ring pipes, and the interface end of the corresponding auxiliary interface shaft pipe 3 is of two groups of pipe orifice groove structures, so that a staggered pipe body interface structure can be formed in the process of butt-joint and combination of the shaft pipes, wherein the outer surfaces of the liner ring pipe 10 and the insulating ring pipe 9 are provided with metal ring grains, the friction force between the liner ring pipe and the pipe orifice grooves to date can be increased, the sealing performance of the joint can be improved by matching with the staggered pipe orifice interfaces, meanwhile, the rubber patches 14 are arranged in the pipe orifice grooves 13, and the rubber patches 14 are positioned at two sides of the liner ring pipe 10, can not direct and medium contact, can cut off the electric conductivity of pipeline kneck, accomplish fixedly through the bridging bolt at last, be provided with simultaneously between the ring flange and cut off rubber ring 8, utilize to cut off rubber ring 8 and keep certain clearance distance between two sets of ring flanges, avoid direct contact, can avoid the diffusion conduction of electric current like this.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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. An insulating flange capable of improving sealing performance comprises a first pipe sleeve flange (1) and a second pipe sleeve flange (2), and is characterized in that: first pipe box flange (1) includes main interface central siphon (4), and second pipe box flange (2) includes vice interface central siphon (3), the inside of vice interface central siphon (3) and main interface central siphon (4) is provided with medium flow chamber (5), and the one end of vice interface central siphon (3) and main interface central siphon (4) is provided with toper nose interface (11), the outside of vice interface central siphon (3) and main interface central siphon (4) other end all is provided with metal flange dish (6), and metal flange dish (6) and vice interface central siphon (3) and main interface central siphon (4) welded connection, be provided with between metal flange dish (6) and cut off rubber ring (8), and the surface of metal flange dish (6) is provided with the screw.

2. An insulating flange capable of improving sealing performance according to claim 1, wherein: the metal flange plates (6) are connected through bridging bolts (7), the partition rubber ring (8) is connected with the bridging bolts (7) in a combined mode, and the partition rubber ring (8) is attached to the metal flange plates (6).

3. An insulating flange capable of improving sealing performance according to claim 1, wherein: the other end of main interface central siphon (4) is provided with inner bag ring canal (10), and the outside of inner bag ring canal (10) is provided with insulating ring canal (9), insulating ring canal (9) and inner bag ring canal (10) set up into the integral type structure with main interface central siphon (4).

4. An insulating flange capable of improving sealing performance according to claim 3, wherein: the other end of the auxiliary interface shaft tube (3) is provided with an inner liner tube mouth groove (12), the inner liner ring tube (10) is attached to the inner liner tube mouth groove (12), the outer side of the inner liner tube mouth groove (12) is provided with a plug tube mouth groove (13), and the insulating ring tube (9) is attached to the plug tube mouth groove (13).

5. An insulating flange capable of improving sealing performance according to claim 4, wherein: the rubber patch (14) is arranged in the inserting port groove (13), and the rubber patch (14) is connected with the auxiliary interface shaft tube (3) through a clamping groove.

6. An insulating flange capable of improving sealing performance according to claim 4, wherein: and the outer surfaces of the liner ring pipe (10) and the insulating ring pipe (9) are provided with metal ring grains.