Pyramidal laying liquid typed high performance mass transfer tray with central downcast pipe

A downcomer and mass transfer tower technology, which is applied in the field of central downcomer cone liquid distribution type high-efficiency mass transfer trays, can solve the problem of uneven distribution of gas-liquid flow, low mass transfer efficiency of trays, and occupied tray area Large and other problems, to achieve the effect of increasing the effective area of ​​the tray, improving the uniformity of gas-liquid flow, and improving the flux of the tray

Inactive Publication Date: 2005-11-16
BAYER TECH & ENG SHANGHAI
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AI Technical Summary

Problems solved by technology

[0004] First, in order to overcome the traditional tray downcomer occupying a large area of ​​the tray, thereby reducing the effective area and resulting in low mass transfer efficiency of the tray; second, in order to overcome the non-perforated ring of the traditional tray wall The area has no mass transfer contribution, which reduces the area of ​​the effective area and leads to the disadvantage of low mass transfer efficiency of the tray; thirdly, in order to overcome the problem of low mass transfer efficiency of the tray due to the large liquid level drop of the traditional tray and the uneven distribution of gas-liquid flow Disadvantages; Fourth, in order t

Method used

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  • Pyramidal laying liquid typed high performance mass transfer tray with central downcast pipe
  • Pyramidal laying liquid typed high performance mass transfer tray with central downcast pipe
  • Pyramidal laying liquid typed high performance mass transfer tray with central downcast pipe

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[0013] The present invention will be further explained in conjunction with the drawings:

[0014] Now take the float valve tray with a tower diameter of 2000mm and a plate spacing of 550mm, and the use of the tray of the present invention to transform old float valve trays as an example to illustrate the present invention in detail: a cone dispenser with a flat-top blind plate in the center The diameter of the central blind plate is 400mm, and the distance between it and the lower end of the downcomer on the upper tray is 50mm; the height of the zigzag overflow weir is 30mm, the tooth depth is 10mm, and the tooth shape is equilateral triangle; The angle between the cone and the horizontal is 20 degrees. The horizontal projection diameter of the cone liquid distributor of the central flat-top blind plate is 1840mm. The cone liquid distributor is provided with a circular hole with a diameter of 20mm, arranged in a regular triangle, and the opening rate is 40%; the cylinder diameter ...

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Abstract

An efficient mass-transfer tower tray with central down-flow spout and conic liquid distributor is composed of a sieve-or float valve-type tower plate, a cyclone-type down-flow spout in the center of tower plate, a liquid-retaining ring dam on the tower plate, and a conic liquid distributor with blind top. Its advantages are high space utilization rate, flowing uniformity and degassing power, and high efficiency of tower plate.

Description

technical field [0001] The invention relates to a central downcomer cone liquid-distributing high-efficiency mass transfer tray, which belongs to the structural technology of tower internals used for mass transfer and heat transfer in chemical distillation, absorption, desorption and other operations. Background technique [0002] Vapor-liquid mass transfer equipment is mainly divided into two categories: plate tower and packed tower. Due to the simple structure of the plate tower, low cost, easy expansion and relatively mature experience in design and operation, the large-scale equipment in the current industry is still dominated by the plate tower. The general form of the traditional tray is to set the liquid receiving tray and the downcomer at both ends of the tray as the liquid phase inlet and outlet channels; Holes) come into contact with the liquid phase for mass transfer. [0003] The structure of the traditional tray makes: first, the downcomer occupies a large are...

Claims

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Application Information

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IPC IPC(8): B01D3/18
Inventor 刘春江刘国标袁希钢曾爱武
Owner BAYER TECH & ENG SHANGHAI
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