Tower tray provided with rectangular combination valve

A technology of combining valves and trays, applied in distillation separation, fractionation, chemical instruments and methods, etc., can solve the problems of increased manufacturing cost, complex processing procedures, and small operation flexibility.

Inactive Publication Date: 2011-03-30
BEIJING ZEHUA CHEM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the trays commonly used in oil refining, petrochemical and chemical industries are valve trays and fixed valve trays. These two trays have the following disadvantages in use: (1) Although the valve trays have large operating flexibility, their The processing procedure is complex and wastes materials, resulting in an increase in manufacturing costs
(2) The fixed valve tray is easy to process and there is no waste of materials, but its operation flexibility is small

Method used

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  • Tower tray provided with rectangular combination valve
  • Tower tray provided with rectangular combination valve
  • Tower tray provided with rectangular combination valve

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Embodiment Construction

[0012] The tray that the present invention proposes is provided with rectangular combination valve, and its structure is as figure 1 As shown, it is composed of a tray plate 1, a main valve A and a sub-valve B, and the thickness l of the tray plate 1 is 1-5 mm. The mother valve A is directly stamped from the tray plate 1, and the stamped mother valve A includes the valve face A1, the wide valve leg A2 and the narrow valve leg A3, such as figure 2 As shown, the valve surface A1 of the mother valve A is an isosceles trapezoid with a square hole A4 in the middle. The upper bottom of the isosceles trapezoid is the width d1 of the narrow valve leg A3=18-25mm, and the lower bottom of the isosceles trapezoid is the wide valve. The width d2 of the leg A2=25-35mm, the height h=45-80mm of the isosceles trapezoid, the length a=25-35mm of the square hole, and the width b=15-25mm. like image 3 As shown, the lift height h1 of the main valve A is 3-7mm. like Figure 4 As shown, the sub...

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PUM

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Abstract

The invention relates to a tower tray provided with a rectangular combination valve, belonging to the technical field of gas-liquid contact mass transfer equipment in oil refining, petroleum and chemical industry. The tower tray is formed by combining a tower tray plate, a main valve and a sub-valve, wherein the main valve is formed by stamping the tower tray plate; the stamped main valve comprises a valve face, a wide valve leg and a narrow valve leg, wherein the valve face is an isosceles trapezoid with square holes in the middle; and the sub-valve is a floating valve and is formed by a rectangular valve face and two valve legs. In the combination valve tower tray, the sub-valve is not opened when gas flow is less, gas only passes through valve seams of the main valve at the time so that the liquid-leakage condition of the tower tray does not occur easily when gas flow is less; when the gas flow is bigger, the sub-valve is gradually opened, the gas passes through valve seams of the main valve and the sub-valve at the same time so that mass transfer of two gas-liquid phases is generated on the region above the valve face of the main valve, therefore, the phase contact area between the two gas-liquid phases in a tower is effectively increased, the mass transfer resistance is reduced and the tower plate efficiency is improved.

Description

technical field [0001] The invention relates to a tray provided with a rectangular combined valve, which belongs to the technical field of gas-liquid contact mass transfer equipment in oil refining, petrochemical and chemical industries. Background technique [0002] At present, the trays commonly used in oil refining, petrochemical and chemical industries are valve trays and fixed valve trays. These two trays have the following disadvantages in use: (1) Although the valve trays have large operating flexibility, their The processing procedure is complicated and wastes materials, resulting in an increase in manufacturing cost. (2) The fixed valve tray is easy to process and there is no waste of material, but its operation flexibility is small. Contents of the invention [0003] The purpose of the present invention is to design a tray with a rectangular combination valve, improve the structure of the existing floating valve tray and fixed valve tray, and add a small floatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/18B01D3/20
Inventor 王常志陈利
Owner BEIJING ZEHUA CHEM ENG
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