CN212178162U

CN212178162U - High-pressure welding neck flange

Info

Publication number: CN212178162U
Application number: CN202020907753.1U
Authority: CN
Inventors: 李朝俊
Original assignee: Henan Shenheng Industry Co ltd
Current assignee: Henan Shenheng Industry Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-12-18
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a high pressure welding neck flange relates to the flange field, and the current welding neck flange welded shaping back body among the solution prior art is connected firmly inadequately between the flange, takes place cracked problem easily. The utility model discloses a mounting structure for a flange plate, including the ring flange, the internally mounted of ring flange has fastening sleeve, fastening sleeve's internally mounted has the mount pad, the taper neck section portion is installed to fastening sleeve's top, the fixed plate is installed to fastening sleeve's upper end, spacing dish is installed to the upper end of mount pad, the inside of taper neck section portion is provided with the mounting hole, the inside hole that is provided with of mount pad, the inside both sides of mount pad all are provided with the spacing groove, the inside of spacing groove is provided with the silica gel sealing ring, the below of silica gel sealing ring is provided with the sealing washer, the up end and the lower terminal surface of ring flange all are provided with the hole groove, the inside of ring flange is provided with the flange.

Description

High-pressure welding neck flange

Technical Field

The utility model relates to a flange technical field specifically is a high pressure welding neck flange.

Background

The welding neck flange is a kind of pipe fittings, mean the flange with neck and circular tube transition and butt-welding connection with pipe, the welding neck flange is difficult to deform, seal well, employ extensively, there are corresponding rigidity and elasticity requirement and rational butt welding to attenuate the transition, the distance of welding crater is great from the faying face, the faying face avoids the welding temperature to deform, it adopts the more complicated horn-shaped structure, suitable for the pipeline or high temperature, high pressure and cryogenic pipeline that the pressure or temperature fluctuate greatly, generally used for PN is greater than 2.5MPa pipeline and connection of the valve; and is also used for pipelines for conveying expensive, inflammable and explosive media.

In the pipeline engineering, the flange is mainly used for connecting pipelines, the pipelines to be connected are provided with various flange plates, a low-pressure pipeline can use a threaded flange, a welding flange with the pressure of more than 4 kilograms is used, a sealing gasket is added between the two flange plates and then is fastened by bolts, the flanges with different pressures have different thicknesses and use different bolts, a high-pressure welding flange is one of the flanges and is specially used for connecting a clamping sleeve, the clamping sleeve is usually provided with an inner pipe and an outer pipe and is connected through a radial connecting column, the welding surface of a neck-shaped boss of the currently and commonly used neck-shaped welding flange and a pipe body is flat and narrow, the connection between the pipe body and the flange after welding forming is not stable enough, and the condition of fracture is easy to occur; therefore, the market is urgently needed to develop a high-pressure welding neck flange to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high pressure welding neck flange to the current welding neck flange welded shaping back body that proposes in solving above-mentioned background art is connected firmly inadequately between the flange, takes place cracked problem easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high pressure welding neck flange, includes the ring flange, the internally mounted of ring flange has fastening sleeve, fastening sleeve's internally mounted has the mount pad, the mount pad is laminated with fastening sleeve, the taper neck section portion is installed to fastening sleeve's top.

Preferably, a fixing plate is installed at the upper end of the fastening sleeve, the fixing plate and the fastening sleeve are arranged into an integral structure, threaded holes are formed in the outer surface of the fixing plate and the inner portion of the flange plate, the threaded holes are respectively arranged into an integral structure with the flange plate and the fixing plate, and the fixing plate is fixedly connected with the flange plate through fixing screws.

Preferably, spacing dish is installed to the upper end of mount pad, spacing dish and mount pad welded connection, the inside of taper neck section portion is provided with the draw-in groove, inside and taper neck section portion fixed connection of draw-in groove is gone into to spacing dish card, the lower extreme of taper neck section portion is provided with straight tube portion, and straight tube portion extends to the inside and the mount pad threaded connection of mount pad.

Preferably, the inside of taper neck section portion is provided with the mounting hole, the mounting hole sets up structure as an organic whole with taper neck section portion, the inside of mount pad is provided with the hole, hole and mount pad set up structure as an organic whole, hole and mounting hole link up.

Preferably, both sides of the inside of the mounting seat are provided with limit grooves, the limit grooves and the mounting seat are arranged into an integrated structure, the inside of the limit grooves is provided with a silica gel sealing ring, the silica gel sealing ring is bonded with the mounting seat and is connected with the mounting seat, a sealing ring is arranged below the silica gel sealing ring, the diameter of the sealing ring is smaller than that of the silica gel sealing ring, and the sealing ring and the silica gel sealing ring are arranged into an integrated structure.

Preferably, the upper end face and the lower end face of the flange plate are both provided with hole grooves, the hole grooves and the flange plate are arranged into an integral structure, a flange hole is formed in the flange plate, the flange hole and the flange plate are arranged into an integral structure, an anti-skid ring is arranged on the inner surface of the flange hole, and the anti-skid ring is bonded with the flange plate.

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

the utility model is characterized in that through the installation of the installation seat, after the pipeline is fixed in the installation hole, the pipe orifice enters the inside of the silica gel sealing ring to be tightly attached to the silica gel sealing ring, through further sealing, welding and forming are carried out, so that the taper neck section part and the pipeline are integrated, the installation seat and the fastening sleeve are connected between the taper neck section part and the flange plate, the installation seat and the taper neck section part are clamped through the limiting plate above the installation seat, the taper neck section part is fixed through the external thread, so that the taper neck section part can be respectively fixed with the installation seat and the fastening sleeve, the installation seat is screwed through the fixing plate, so that when the pipeline is under pressure, the pressure can be buffered on the limiting plate through the taper neck section part, the pressure is released to the fastening sleeve through the limiting plate, the stress of the fastening sleeve spreads the pressure to the flange plate, through the three-layer fixing structure, the connecting strength between the cone neck section part and the flange plate is better, certain adaptability is achieved, and the condition that the cone neck section part and the flange plate are broken is avoided.

Drawings

FIG. 1 is an internal structure view of a high pressure welding neck flange of the present invention;

FIG. 2 is a top view of a high pressure welding neck flange according to the present invention;

fig. 3 is a bottom view of the high-pressure welding neck flange of the present invention.

In the figure: 1. a flange plate; 2. a hole groove; 3. a mounting seat; 4. an inner bore; 5. a silica gel sealing ring; 6. a limiting disc; 7. fastening the sleeve; 8. a tapered neck section; 9. mounting holes; 10. a limiting groove; 11. a seal ring; 12. a fixing plate; 13. a flange hole; 14. and (4) an anti-slip ring.

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. 1-3, the present invention provides an embodiment: the utility model provides a high pressure welding neck flange, includes ring flange 1, and the internally mounted of ring flange 1 has fastening sleeve 7, and the internally mounted of fastening sleeve 7 has mount pad 3, and mount pad 3 and the laminating of fastening sleeve 7 are installed taper neck section portion 8 in the top of fastening sleeve 7, and through the fixed structure of three-layer, the joint strength who makes between taper neck section portion 8 and the ring flange 1 is better.

Further, a fixing plate 12 is installed at the upper end of the fastening sleeve 7, the fixing plate 12 and the fastening sleeve 7 are arranged to be of an integrated structure, threaded holes are formed in the outer surface of the fixing plate 12 and the inside of the flange plate 1 and are respectively arranged to be of an integrated structure with the flange plate 1 and the fixing plate 12, the fixing plate 12 is fixedly connected with the flange plate 1 through fixing screws, and the mounting base 3 is screwed through the fixing plate 12, so that the taper neck section 8 and the flange plate 1 can be connected with each other.

Further, spacing dish 6 is installed to the upper end of mount pad 3, spacing dish 6 and 3 welded connection of mount pad, the inside of taper neck section portion 8 is provided with the draw-in groove, inside and taper neck section portion 8 fixed connection of draw-in groove is gone into to spacing dish 6 card, the lower extreme of taper neck section portion 8 is provided with straight tube portion, and straight tube portion extends to the inside and the 3 threaded connection of mount pad 3, spacing dish 6 through the mount pad 3 top carries out the block with mount pad 3 and taper neck section portion 8, and taper neck section portion 8 is fixing through the external screw thread with fixing, thereby can make taper neck section portion 8 fix with mount pad 3 and fastening sleeve 7 respectively.

Further, the inside of taper neck section portion 8 is provided with mounting hole 9, and mounting hole 9 sets up structure as an organic whole with taper neck section portion 8, and the inside of mount pad 3 is provided with hole 4, and hole 4 sets up structure as an organic whole with mount pad 3, and hole 4 and mounting hole 9 link up, and the pipeline is connected through mounting hole 9, and ring flange 1 carries out the secondary through hole 4 and connects.

Further, the inside both sides of mount pad 3 all are provided with spacing groove 10, spacing groove 10 sets up to a body structure with mount pad 3, the inside of spacing groove 10 is provided with silica gel sealing ring 5, silica gel sealing ring 5 bonds with mount pad 3 and is connected, the below of silica gel sealing ring 5 is provided with sealing washer 11, the diameter of sealing washer 11 is less than the diameter of silica gel sealing ring 5, and sealing washer 11 sets up to a body structure with silica gel sealing ring 5, the mouth of pipe gets into inside and closely laminating with silica gel sealing ring 5 of silica gel sealing ring 5, through further sealing, weld forming.

Further, the up end of ring flange 1 and lower terminal surface all are provided with hole groove 2, hole groove 2 sets up structure as an organic whole with ring flange 1, the inside of ring flange 1 is provided with flange hole 13, flange hole 13 sets up structure as an organic whole with ring flange 1, the internal surface of flange hole 13 is provided with antiskid ring 14, antiskid ring 14 bonds with ring flange 1 and is connected, reduce the weight of ring flange 1 through hole groove 2, under the prerequisite that does not reduce ring flange 1 structural strength, the cost is saved, conveniently install.

The working principle is as follows: when in use, after the pipeline is fixed in the mounting hole 9, the pipeline is connected through the mounting hole 9, the flange plate 1 is secondarily connected through the inner hole 4, the pipe orifice enters the inside of the silica gel sealing ring 5 to be tightly attached to the silica gel sealing ring 5, the welding forming is carried out through further sealing, so that the taper neck section 8 and the pipeline are integrated, the mounting seat 3 and the fastening sleeve 7 are connected between the taper neck section 8 and the flange plate 1, the mounting seat 3 and the taper neck section 8 are clamped through the limiting disc 6 above the mounting seat 3, the taper neck section 8 is fixed through the external thread, so that the taper neck section 8 can be respectively fixed with the mounting seat 3 and the fastening sleeve 7, the mounting seat 3 is screwed through the fixing plate 12, so that when the pipeline is under pressure, the pressure can be buffered on the limiting disc 6 through the taper neck section 8, the pressure is released to the fastening sleeve 7 through the limiting disc 6, the fastening sleeve 7 is stressed to diffuse pressure to the flange plate 1, and the connection strength between the taper neck section 8 and the flange plate 1 is better through a three-layer fixed structure.

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. A high pressure welding neck flange, includes ring flange (1), its characterized in that: the internally mounted of ring flange (1) has fastening sleeve (7), the internally mounted of fastening sleeve (7) has mount pad (3), mount pad (3) and fastening sleeve (7) laminating, taper neck section portion (8) are installed to the top of fastening sleeve (7).

2. A high pressure welding neck flange according to claim 1, wherein: fixed plate (12) are installed to the upper end of fastening sleeve (7), fixed plate (12) set up structure as an organic whole with fastening sleeve (7), the surface of fixed plate (12) and the inside of flange dish (1) all are provided with the screw hole, and the screw hole sets up structure as an organic whole with flange dish (1) and fixed plate (12) respectively, fixed plate (12) are through set screw and flange dish (1) fixed connection.

3. A high pressure welding neck flange according to claim 1, wherein: spacing dish (6) are installed to the upper end of mount pad (3), spacing dish (6) and mount pad (3) welded connection, the inside of taper neck section portion (8) is provided with the draw-in groove, inside and taper neck section portion (8) fixed connection of draw-in groove are gone into to spacing dish (6) card, the lower extreme of taper neck section portion (8) is provided with straight tube portion, and straight tube portion extends to the inside and mount pad (3) threaded connection of mount pad (3).

4. A high pressure welding neck flange according to claim 1, wherein: the inside of taper neck section portion (8) is provided with mounting hole (9), mounting hole (9) set up structure as an organic whole with taper neck section portion (8), the inside of mount pad (3) is provided with hole (4), hole (4) set up structure as an organic whole with mount pad (3), hole (4) and mounting hole (9) link up.

5. A high pressure welding neck flange according to claim 1, wherein: the utility model discloses a silica gel sealing ring, including mount pad (3), limiting groove (10) and mount pad (3), the inside of limiting groove (10) is provided with silica gel sealing ring (5), silica gel sealing ring (5) bind with mount pad (3) and are connected, the below of silica gel sealing ring (5) is provided with sealing washer (11), the diameter of sealing washer (11) is less than the diameter of silica gel sealing ring (5), just sealing washer (11) set up to a body structure with silica gel sealing ring (5).

6. A high pressure welding neck flange according to claim 1, wherein: the anti-skidding ring is characterized in that hole grooves (2) are formed in the upper end face and the lower end face of the flange plate (1), the hole grooves (2) and the flange plate (1) are arranged into an integral structure, a flange hole (13) is formed in the flange plate (1), the flange hole (13) and the flange plate (1) are arranged into an integral structure, an anti-skidding ring (14) is arranged on the inner surface of the flange hole (13), and the anti-skidding ring (14) is bonded with the flange plate (1) and connected with the same.