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Metal-to-metal sharp angle seal welding pipe joint

A technology for sealing welding and pipe joints, applied in the field of pipe joints, can solve the problems of difficulty in achieving sealing effect, cumbersome pipe flaring process, complex pipe joint structure, etc. Effect

Active Publication Date: 2011-04-27
海盐管件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The 24° ferrule pipe joint is usually used to connect steel pipes with an outer diameter of 4-42mm, and its working pressure is usually 10-63Mpa. Due to the high requirements for the installation process of the 24° ferrule pipe joint, the ferrule is one of the The key core components are extremely vulnerable to damage and failure, resulting in a shorter overall service life
The 37°flared pipe joint is usually used to connect steel pipes with an outer diameter of 6-34mm, and its working pressure is usually 5-16Mpa. Due to the cumbersome process of pipe flare of the 37°flared pipe joint, the production efficiency is low , and the installation process requirements are low, and the working pressure is low, resulting in a narrow application area
This kind of pipe joint has a complex structure, inconvenient use, high production cost, and it is difficult to achieve a good sealing effect
[0007] To sum up, there is no pipe joint with simple installation, reliable sealing performance, high working pressure and wide application

Method used

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  • Metal-to-metal sharp angle seal welding pipe joint
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Examples

Experimental program
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Effect test

Embodiment 1

[0048] see Figure 1 to Figure 11 , the metal-to-metal sharp corner seal welded pipe joint in this embodiment includes a joint body 11, a welded joint 12 and a nut 13, wherein one end of the joint body 11 is provided with a sealing plane 21, and the sealing plane 21 is circular structure.

[0049] The welded connecting pipe 12 in this embodiment includes a connecting pipe body 1 , a ring of bosses 2 are arranged on the outer wall of the connecting pipe body 1 , and one side of the bosses 2 is flush with one end of the connecting pipe body 1 . One end of the adapter body 1 is provided with a circle of sharp corner sealing ring 3, and there are two sides on the cross section of the sharp corner 31 in the sharp corner sealing ring 3, and these two sides are respectively side w and side y, wherein to the adapter body 1 An angle β is formed between a side w extending from the outer wall surface and the end surface of one end of the adapter body 1. The degree of the included angle ...

Embodiment 2

[0058] see Figure 12 to Figure 22 , the metal-to-metal sharp corner seal welded pipe joint in this embodiment includes a joint body 11, a welded joint 12 and a nut 13, wherein one end of the joint body 11 is provided with a sealing plane 21, and the sealing plane 21 is circular structure.

[0059] The welded connecting pipe 12 in this embodiment includes a connecting pipe body 1 , a ring of bosses 2 are arranged on the outer wall of the connecting pipe body 1 , and one side of the bosses 2 is flush with one end of the connecting pipe body 1 . One end of the adapter body 1 is provided with a circle of sharp corner sealing ring 3, and there are two sides on the cross section of the sharp corner 31 in the sharp corner sealing ring 3, and these two sides are respectively side w and side y, wherein to the adapter body 1 An angle β is formed between a side w extending from the outer wall surface and the end surface of one end of the adapter body 1. The degree of the included angle...

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Abstract

The invention relates to a metal-to-metal sharp angle seal welding pipe joint. A pipe joint with simple installation and reliable mounting performance does not exist at present. The pipe joint comprises a joint body, a welding connection pipe with a connection pipe body and a nut, wherein the outer wall of the connection pipe body is provided with a circle of lug boss. The pipe joint is characterized in that: one end of the joint body is provided with a sealing plane; one end of the connection pipe body is provided with a sharp angle sealing ring with a sharp angle, the cross section of the sharp angle is provided with two edges, the included angle between the edge extending to the outer wall of the connection pipe body and the end face of the connection pipe body is 8 to 60 degrees, and included angle between the edge extending to the inner wall of the connection pipe body and the end face of the connection pipe body is 15 to 60 degrees; the other side of the lug boss is provided with a circle of stress plane and a circle of deformation groove with arc structure bottom; and the welding connection pipe is arranged in the nut, the nut is connected with the joint body, the sharp angle sealing ring is jacked on the sealing plane, and the stress plane is jacked on the nut. The pipe joint has reasonable design, simple installation, reliable sealing performance, high working pressure and wide application range.

Description

technical field [0001] The invention relates to a pipe joint, in particular to a metal-to-metal sharp corner seal welding pipe joint, which can effectively replace the 24° ferrule type pipe joint, the 37° flared pipe joint, and the flat O-ring seal welding type Pipe joints to connect pipeline engineering systems. Background technique [0002] In modern industrial hydraulic and pneumatic systems, 24° ferrule type pipe joints, 37° flared pipe joints, and flat O-ring seal welded pipe joints are usually used to connect pipeline engineering systems. These three types of pipe joints have respectively The following properties. [0003] 1. The 24° ferrule type pipe joint is a metal-to-metal seal of the 24° inner cone of the joint body. The cutting edge of the ferrule cuts into the outer wall of the steel pipe, and the outer circle of the ferrule squeezes the inner cone of the joint body to form a metal-to-metal seal. seal. The 24° ferrule pipe joint is usually used to connect ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L13/02
Inventor 耿志学
Owner 海盐管件制造有限公司
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