CN215635555U

CN215635555U - Aluminum alloy flange

Info

Publication number: CN215635555U
Application number: CN202121638917.6U
Authority: CN
Inventors: 马铭伟; 路国义; 王昱; 张懿瀛; 路林; 张宏明; 潘普明; 张学明; 董伟; 张亚黎
Original assignee: Yingkou Jinhe Mechanical And Electrical Equipment Co ltd
Current assignee: Yingkou Jinhe Mechanical And Electrical Equipment Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-01-25
Anticipated expiration: 2031-07-19

Abstract

The utility model relates to the technical field of flanges, in particular to an aluminum alloy flange which comprises an upper flange and a lower flange, wherein a ring-shaped guide ring is arranged on the inner peripheral wall of the upper flange, the guide ring is of a two-section structure consisting of a front section and a rear section, the front section is of an annular structure with gradually contracted calibers, the front section is fixedly connected with the upper flange, the rear section is of a cylindrical structure, the rear section and the inner peripheral wall of the upper flange form an annular cavity, a cylindrical sealing ring is arranged on the inner peripheral wall of the lower flange, one section of the sealing ring, which is close to the upper flange, extends to the outside of the lower flange, a sealing ring is attached to one section of the inner peripheral wall, which is close to the upper flange, and one section of the sealing ring, which is close to the outer peripheral wall of the rear section, is embedded into the annular cavity formed by the rear section and the inner peripheral wall of the upper flange. According to the utility model, the flow guide ring and the sealing ring are mutually nested and attached, so that fluid is prevented from leaking from the flange connection part.

Description

Aluminum alloy flange

Technical Field

The utility model relates to the technical field of flanges, in particular to an aluminum alloy flange.

Background

Flanges, also called flange flanges or beads, are parts of the interconnection between pipes, for the connection between the ends of the pipes; there are also flanges on the inlet and outlet of the equipment for the connection between two pieces of equipment, such as reducer flanges. The flange connection or flange joint is a detachable connection which is formed by connecting a flange, a gasket and a bolt with each other to form a group of combined sealing structures.

The aluminum alloy flange is a light flange made of aluminum alloy material, and is commonly found at the joint of pipelines. The existing aluminum alloy flange mainly uses a thin circular sheet gasket as a sealing structure, but the installation and fixation of the gasket mainly uses the pressing force between two flanges, after long-time use, the gasket is easy to slide, and the sealing property of flange connection is influenced. For this reason, we propose an aluminum alloy flange to solve the above drawbacks well.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an aluminum alloy flange, which is used for enhancing the sealing performance of flange connection by arranging a guide ring and a sealing ring in an upper flange and a lower flange, and solves the problems in the background technology.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides an aluminum alloy flange, includes flange and lower flange, be equipped with the water conservancy diversion ring that is the annular form on the internal perisporium of upper flange, the water conservancy diversion ring is the two segmentation structures of constituteing by anterior segment and back end, the anterior segment is the cyclic annular structure that the bore shrinks gradually, and anterior segment and upper flange fixed connection, the back end is cylindric structure, and the back end constitutes a toroidal cavity with the internal perisporium of upper flange, be equipped with on the internal perisporium of lower flange and be cylindric sealing ring, one section that the sealing ring is close to the upper flange extends to the outside of lower flange, and the sealing ring is laminated on one section internal perisporium that the sealing ring is close to the upper flange has the sealing washer, and one section that the sealing ring is close to the upper flange is embedded into the toroidal cavity that the internal perisporium of back end and upper flange constitutes, just the sealing washer closely laminates with the peripheral wall of back end.

Preferably, the inner peripheral wall of the upper flange is provided with guide rails distributed along the axial direction of the upper flange, the guide rails are positioned in an annular cavity defined by the rear section and the upper flange, and the outer peripheral wall of the sealing ring is provided with guide grooves matched with the guide rails.

Preferably, a gasket is attached to one surface, opposite to the upper flange, of the lower flange, and an annular gasket groove is formed in one surface, opposite to the lower flange, of the upper flange.

Preferably, the fixed holding ring that is equipped with on the internal perisporium of sealing ring, the top surface laminating of holding ring is equipped with the anti-overflow ring, the anti-overflow ring just laminates with the back end to the one side of lower flange.

Preferably, the material of sealing washer chooses for use silica gel or rubber, and the internal diameter of sealing washer is less than the external diameter of back end, and the fillet has been seted up to the sealing washer just to the one side of going up the flange.

Compared with the prior art, the utility model provides an aluminum alloy flange, which has the following beneficial effects:

1. according to the utility model, the flow guide ring and the sealing ring are mutually nested and attached, so that fluid is prevented from leaking from the flange connection part;

2. according to the utility model, the gasket groove matched with the gasket is formed on the sealing surface of the upper flange, so that the gasket is prevented from sliding, and the sealing property of flange connection is further enhanced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged corresponding view of a portion a in fig. 1.

In the figure: 1. an upper flange; 2. a lower flange; 3. a flow guide ring; 301. a front section; 302. a rear section; 4. a seal ring; 5. a seal ring; 6. a guide rail; 7. a guide groove; 8. a gasket; 9. a gasket groove; 10. a positioning ring; 11. an anti-overflow ring.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1 and 2, an aluminum alloy flange includes an upper flange 1 and a lower flange 2, a ring-shaped flow guide ring 3 is disposed on an inner peripheral wall of the upper flange 1, the flow guide ring 3 is welded on an inner wall of the upper flange 1, the flow guide ring 3 is a two-stage structure composed of a front stage 301 and a rear stage 302, the front stage 301 and the rear stage 302 are integrally formed, the front stage 301 is an annular structure with a gradually contracted caliber, the front stage 301 is fixedly connected with the upper flange 1, the rear stage 302 is a cylindrical structure, the rear stage 302 and the inner peripheral wall of the upper flange 1 form an annular cavity, and the rear stage 302 and the upper flange 1 are coaxially disposed; be equipped with on the internal perisporium of lower flange 2 and be

cylindric sealing ring

4, 4 welded fastening of sealing ring are on the inner wall of lower flange 2, sealing ring 4 is close to one section outside that extends to lower flange 2 of upper flange 1, it has sealing washer 5 to laminate on one section internal perisporium of upper flange 1 to seal ring 4, silica gel or rubber are chooseed for use to the material of sealing washer 5, and the internal diameter of sealing washer 5 is less than the external diameter of back end 302, the fillet has just been seted up to the one side of upper flange 1 to sealing washer 5, it inserts in the toroidal cavity to set up the fillet for convenience of sealing ring 4, one section embedding that sealing ring 4 is close to upper flange 1 is to the toroidal cavity that back end 302 and upper flange 1's internal perisporium constitute, and the peripheral wall of sealing washer 5 and back end 302 closely laminates.

The inner peripheral wall of the upper flange 1 is provided with guide rails 6 distributed along the axial direction of the upper flange 1, the guide rails 6 are positioned in an annular cavity formed by the rear section 302 and the upper flange 1, the guide rails 6 and the upper flange 1 are integrally formed, the outer peripheral wall of the sealing ring 4 is provided with guide grooves 7 matched with the guide rails 6, and the guide rails 6 are embedded in the guide grooves 7 and have the functions of enhancing the connection stability of the upper flange 1 and the lower flange 2 and avoiding relative rotation of the upper flange 1 and the lower flange 2; a gasket 8 is attached to one surface, opposite to the upper flange 1, of the lower flange 2, a ring-shaped gasket groove 9 is formed in one surface, opposite to the lower flange 2, of the upper flange 1, and the gasket 8 is embedded in the gasket groove 9 and has the function of preventing the gasket 8 from sliding under the action of pressure in the using process; fixed holding ring 10 that is equipped with on the internal perisporium of sealing ring 4, the top surface laminating of holding ring 10 is equipped with anti-overflow ring 11, and anti-overflow ring 11 is just laminated with back end 302 to the one side of lower flange 2, and anti-overflow ring 11 adopts silica gel or rubber material, and the effect is the leakproofness of further reinforcing flange joint.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an aluminum alloy flange, includes upper flange (1) and lower flange (2), its characterized in that: the inner peripheral wall of the upper flange (1) is provided with a guide ring (3) in an annular shape, the guide ring (3) is of a two-section structure consisting of a front section (301) and a rear section (302), the front section (301) is of an annular structure with gradually contracted caliber, the front section (301) is fixedly connected with the upper flange (1), the rear section (302) is of a cylindrical structure, the rear section (302) and the inner peripheral wall of the upper flange (1) form an annular cavity, the inner peripheral wall of the lower flange (2) is provided with a cylindrical sealing ring (4), one section of the sealing ring (4) close to the upper flange (1) extends to the outside of the lower flange (2), the sealing ring (4) is attached to one section of the inner peripheral wall close to the upper flange (1) and is provided with a sealing ring (5), one section of the sealing ring (4) close to the upper flange (1) is embedded into the annular cavity formed by the rear section (302) and the inner peripheral wall of the upper flange (1), and the sealing ring (5) is tightly attached to the peripheral wall of the rear section (302).

2. An aluminium alloy flange according to claim 1, wherein: the inner peripheral wall of the upper flange (1) is provided with guide rails (6) distributed along the axial direction of the upper flange (1), the guide rails (6) are located in an annular cavity formed by the rear section (302) and the upper flange (1), and the outer peripheral wall of the sealing ring (4) is provided with guide grooves (7) matched with the guide rails (6).

3. An aluminium alloy flange according to claim 1, wherein: the lower flange (2) is provided with a gasket (8) opposite to one surface of the upper flange (1) in a fitting manner, and one surface of the upper flange (1) opposite to the lower flange (2) is provided with a ring-shaped gasket groove (9).

4. An aluminium alloy flange according to claim 1, wherein: the fixed holding ring (10) that is equipped with on the internal perisporium of sealing ring (4), the top surface laminating of holding ring (10) is equipped with anti-overflow ring (11), anti-overflow ring (11) just laminates with back end (302) the one side of lower flange (2).

5. An aluminium alloy flange according to claim 1, wherein: silica gel or rubber are selected as the material of the sealing ring (5), the inner diameter of the sealing ring (5) is smaller than the outer diameter of the rear section (302), and a round angle is formed in the surface, opposite to the upper flange (1), of the sealing ring (5).