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A uniform gas distribution device for tower-type gas-liquid contact equipment and its application

A gas-liquid contact and gas distribution device technology, applied in the field of chemical engineering, can solve problems such as uneven distribution of bubbles, and achieve the effects of easy maintenance and replacement, stable operation, and high uniformity of gas distribution

Inactive Publication Date: 2017-07-04
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problem of uneven distribution of bubbles in the tower-type gas-liquid contact equipment in the prior art, the present invention provides a uniform gas distribution device for the tower-type gas-liquid contact equipment and its application. Uniform distribution of bubbles in the cross-section, and the diameter of the bubbles is uniform

Method used

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  • A uniform gas distribution device for tower-type gas-liquid contact equipment and its application
  • A uniform gas distribution device for tower-type gas-liquid contact equipment and its application
  • A uniform gas distribution device for tower-type gas-liquid contact equipment and its application

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Experimental program
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Embodiment 1

[0101] Such as figure 1 As shown, the present embodiment takes 3 hollow cylinders as an example to manufacture a pilot-scale solvent air flotation tower. The tower body size is: the height of the column tower body 1 is 3000mm, and the diameter of the column tower body 1 is 600mm. The base body of the gas distribution plate 2 is processed from a stainless steel plate with a thickness of 6mm. The outer edge of the gas distribution plate 2 is sealed and connected to the lower part of the column tower body 1. The thickness of the gas distribution plate 2 is 10 mm, and the inner diameter of the vertical channels opened on the gas distribution plate 2 is 1 mm. 5% of the total area of ​​the base of the air distribution disc 2 . The length of the small straight tube inserted into the vertical channel is 11 mm, the diameter is 1 mm, and the small round tube is 5 mm higher than the base of the convex gas distribution disk 2 . The bottom surface of the gas distribution plate 2 is provi...

Embodiment 2

[0104] Except that the bottom surface of the gas distribution plate 2 is provided with 4 hollow cylinders 8 to manufacture a pilot-scale solvent air flotation tower, the thickness of the gas distribution plate is 20 mm, and the inner diameter of the vertical channels opened on the gas distribution plate 2 is 2 mm. The total area of ​​holes in the channels accounts for 10% of the total area of ​​the base of the gas distribution plate 2, the small round straight tubes are 10 mm higher than the base of the convex gas distribution plate 2, and the thickness of the resistance layer 7 is from 20 mm along the radial direction of the cross-section of the tower body from the inside to the outside. Outside gradually increases to 100mm, other structure and operation are all the same as the solvent air flotation tower in embodiment 1, can obtain the bubble number of 5mm in tower body cross-section and account for more than 95% of the total bubble number of generation by this device, And on...

Embodiment 3

[0106] Except that the bottom surface of the gas distribution plate 2 is provided with 30 hollow cylinders 8 to manufacture a pilot-scale solvent extraction tower, the thickness of the gas distribution plate is 2 mm, and the inner diameter of the vertical channels opened on the gas distribution plate 2 is 4 mm. The total area of ​​the holes accounts for 20% of the total area of ​​the gas distribution disk 2 substrates, and the small round straight pipe is higher than the substrate 20mm of the convex gas distribution disk 2. Other structures and operations are the same as those of the solvent air flotation tower in embodiment 1. Through the device, the number of bubbles of 2 mm can be obtained on the cross-section of the tower body, accounting for more than 95% of the total number of generated bubbles, and the number of bubbles is the same on the cross-section of the tower body.

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Abstract

The invention provides a tower-type gas-liquid contact equipment even gas distribution device and an application thereof. The device sequentially comprises a tower body, a gas distribution disk, a resistance layer and an air chamber from top to bottom; the gas distribution disk is horizontally arranged on the lower portion of the tower body, vertical pore passages which penetrate through a base body of the gas distribution disk is formed in the base body, circular straight pipes are inserted into the vertical pore passages, and the outer walls of the circular straight pipes and the inner walls of the pore passages are sealed; the resistance layer is composed of two or more hollow cylinders and solid particle filler; the solid particle filler is wrapped with fabric and central cylinder cavities and annular cavities formed through hollow cylinders are filled with the solid particle filler; the air chamber is located in a cone-shaped cavity which is formed in the lower portion of the resistance layer and connected with the tower body. By means of the tower-type gas-liquid contact equipment even gas distribution device, due to the fact that the resistance of the gas chamber is increased, even distribution of bubbles in the cross section of the tower body is achieved, and the diameters of the bubbles are uniform.

Description

technical field [0001] The invention belongs to the field of chemical engineering, and relates to a uniform gas distribution device for tower-type gas-liquid contact equipment and its application, in particular to a uniform gas distribution device for tower-type gas-liquid contact equipment that realizes uniform gas distribution by increasing the resistance of the gas chamber and the device thereof. use. Background technique [0002] The chemical reaction process often involves tower-type gas-liquid contact equipment. It is necessary to achieve uniform dispersion of bubbles in the liquid phase. This requires not only uniform distribution of the bubble dispersed phase per unit mass transfer height, but also uniform diameter of the bubble dispersed phase. [0003] There have been many reports on the uniform gas distribution method and device for the gas-solid two-phase reaction. Patents CN 10250867A and CN202621144U both proposed a uniform gas distribution device for the suspe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18
Inventor 黄焜肖传绪隋娜郑翰刘会洲
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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