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Welding neck flange with assembling ring preset at neck opening and implementation method of welding neck flange

A technology for assembling rings and welding flanges. It is used in flange connections, mechanical equipment, pipes/pipe joints/fittings, etc., and can solve problems that affect practicality, fail to solve disassembly and assembly, and difficulties.

Inactive Publication Date: 2021-11-05
ANHUI TONGSHENG RING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this invention can improve the installation stability, it still fails to solve the problem of difficult disassembly and assembly, which affects the practicality

Method used

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  • Welding neck flange with assembling ring preset at neck opening and implementation method of welding neck flange
  • Welding neck flange with assembling ring preset at neck opening and implementation method of welding neck flange
  • Welding neck flange with assembling ring preset at neck opening and implementation method of welding neck flange

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Experimental program
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Effect test

Embodiment approach

[0037] A method for implementing a butt welding flange with a preset assembly ring at the neck, comprising the following steps:

[0038] Step 1: first weld and fix the bottom ring 31 on the top of the flange neck 2, wherein the flange neck 2 has been connected with the flange main body 1;

[0039] Second step: then put the upper ring 33 on the outer edge of the upper surface of the bottom ring 31, and then evenly arrange the deformation block 35 on the edge of the inner cavity of the upper ring 33, at this time, the sealing ring 34 is in contact with the outer wall of the bottom ring 31 snapping, then the middle ring 32 is placed on the inner edge of the upper surface of the bottom ring 31, and the middle ring 32 and the bottom ring 31 are welded together;

[0040] Step 3: align the basic welding ring 36 with the welding position to be connected, and then weld the basic welding ring 36 on the welding position by welding;

[0041] The fourth step: then preset the rubber sealin...

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Abstract

The invention discloses a welding neck flange with an assembling ring preset at a neck opening and an implementation method of the welding neck flange. The outer wall of a middle ring is in contact with an upper ring, a deformation block is mounted in a gap between the upper ring and the middle ring, the upper ring and the middle ring are both in contact with a basic welding ring, specifically, the deformation block with the cross section in a transverse X shape has certain elasticity in the assembly process, the corner of the deformation block is rounded to reduce the stress concentration phenomenon, a sealing ring can prevent external impurities such as dust and water from invading and guarantee cleanliness, a retaining ring section is buckled in the gap between the bottom ring and the middle ring, a protruding section is connected with the basic welding ring in a threaded fit mode, and therefore the upper ring installation process is simple and convenient; and meanwhile, according to the implementation method of the welding neck flange with the assembling ring preset at the neck opening, the bottom ring and the upper ring are installed firstly, then the deformation block and the middle ring are installed, finally the upper ring is aligned with the basic welding ring, the outer wall of the upper ring is rotated, the upper ring is in threaded fit with the basic welding ring, the whole assembling process is simple and convenient, and meanwhile the welding neck flange is easy to disassemble and assemble and good in practicability.

Description

technical field [0001] The invention relates to a butt-welding flange, in particular to a butt-welding flange with a preset assembly ring at the neck and an implementation method thereof. Background technique [0002] The butt welding flange is a kind of pipe fitting, which refers to a flange with a neck and a round pipe transition, which is connected to the pipe by butt welding. The butt welding flange is not easy to deform, has good sealing, and is widely used. It has corresponding rigidity and elasticity requirements and reasonable butt welding thinning transition. The distance between the welding port and the joint surface is large, and the joint surface is free from welding temperature deformation. It adopts a relatively complicated The trumpet-shaped structure is suitable for pipelines with large fluctuations in pressure or temperature or high-temperature, high-pressure and low-temperature pipelines. It is generally used for the connection of pipelines and valves with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L23/026F16L23/22F16L23/032
Inventor 赵卓蔡锟
Owner ANHUI TONGSHENG RING
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