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Method for guaranteeing mounting accuracy of tray internal part support ring of pressure container

A technology for pressure vessels and installation accuracy, which is applied in chemical instruments and methods, chemical/physical/physical-chemical processes, chemical/physical processes, etc. It can solve the problem that the distance between support rings is difficult to meet the requirements, achieve flatness and improve assembly Speed, the effect of shortening the manufacturing cycle

Active Publication Date: 2012-11-28
SHANGHAI BOILER WORKS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the flatness of the support rings of the tower and the distance between the support rings are difficult to meet the requirements, and to provide a flatness of the support rings and the distance between the support rings to meet the requirements and to prevent deformation during welding heat treatment, improve The method of ensuring the installation accuracy of the support ring of the internal parts of the pressure vessel tray by assembling speed and shortening the manufacturing cycle

Method used

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  • Method for guaranteeing mounting accuracy of tray internal part support ring of pressure container
  • Method for guaranteeing mounting accuracy of tray internal part support ring of pressure container
  • Method for guaranteeing mounting accuracy of tray internal part support ring of pressure container

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Embodiment 1

[0023] The invention is a method for ensuring the installation accuracy of the supporting ring of the inner part of the pressure vessel tray, such as Figure 1 ~ Figure 3 shown, including the following steps:

[0024] Step 1: Simultaneously clamp both ends of the supporting ring 3 of the adjacent layer through the slots on the two measuring clamps 1;

[0025] Step 2: Use the slot on the positioning angle 2 to clamp the support ring 3 that was previously clamped by the slot on the measuring clamp 1;

[0026] Step 3: Fix the support ring 3 and the positioning angle steel 2 together by spot welding to form the support ring group 4;

[0027] Step 4: Remove the measuring clamp 1 from the support ring 3;

[0028] Step 5: If you want to continue to fix the support ring 3, proceed to steps 6 and 7; otherwise, install the fixed support ring 3 on the tower tray, remove all the positioning angle steel 2 after heat treatment, and the installation is completed.

[0029] Step 6: Clamp a ...

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Abstract

The invention discloses a method for guaranteeing the mounting accuracy of a tray internal part support ring of a pressure container. The method comprises the following steps of: I, clamping the two ends of adjacent support rings through the clamp slots on two measurement clamp plates; II, clamping the support rings clamped by the clamp slots on the measurement clamp plates by use of a clamp slot on the positioning angle steel; III, fixing the support rings and the positioning angle steel together to form a support ring group; IV, removing the measurement clamp plates; V, if the support rings are continuously fixed, performing steps VI and VII; otherwise, mounting the support rings fixed together on a tray, performing heat treatment and removing all positioning angle steel to finish the mounting; VI, clamping the outermost support ring of the support ring group by use of one clamp slot at one end of the measurement clamp plate, and placing new support rings into other clamp slots on the measurement clamp plate one by one; and VII, repeating the steps II to V. The method disclosed by the invention has the characteristics of high support ring assembly speed, short manufacturing period, easiness in guarantee of flatness and space and the like.

Description

technical field [0001] The invention relates to a method for ensuring the installation accuracy of a support ring of a pressure vessel tray internal part, and belongs to the field of pressure vessel trays. Background technique [0002] For tower equipment in chemical equipment, such as absorption towers and washing towers, there are dozens or even hundreds of trays. The flatness and spacing of the trays directly affect the product quality and the performance of the equipment. The accuracy of the welding of the support ring in the support determines the flatness of the tray and the spacing between the trays. Standard requirements: the tolerance of the distance between two adjacent layers of support rings is ±3mm, and the tolerance of the distance between any two layers of support rings is ±10mm within 20 layers; The local flatness tolerance is 1mm, and the upper surface flatness of the entire support ring is ≤5mm. If it is only assembled according to the marking line withou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/00
Inventor 张文锋伍鹏辉
Owner SHANGHAI BOILER WORKS
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