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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, which is applied in the field of chemical engineering, can solve problems such as uneven gas distribution, and achieve the effect of stable operation and high uniformity of gas distribution

Inactive Publication Date: 2018-03-13
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] In view of the problem of uneven gas distribution 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, which can realize the uniform distribution of air bubbles in the cross-section of the tower body, And the diameter of the bubble 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

Examples

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Effect test

Embodiment 1

[0078] like figure 1 As shown, the present embodiment takes 3 hollow cylinders as an example to manufacture a pilot-scale solvent air flotation tower. The size of the cylindrical tower body 1 is: the height of the tower is 3000mm, and the diameter of the tower is 600mm. Arrange the gas distribution plate 2 at the bottom of the cylindrical tower body 1, the thickness of the gas distribution plate is 10mm, the outer diameter of the small round straight pipe 10 on the gas distribution plate 2 is 1mm equal to the inner diameter of the gas distribution plate 2 openings, and The small round straight pipe 10 is 5mm higher than the plane of the gas distribution disc, and the total area of ​​the perforated holes accounts for 10% of the total area of ​​the gas distribution disc 2 substrates. At the bottom of the cylindrical tower body 1, below the gas distribution plate 2, three hollow cylinders 3 with the central axis of the tower body as the axis, with different inner diameters and le...

Embodiment 2

[0080] like figure 1 As shown, the present embodiment takes 3 hollow cylinders as an example to manufacture a pilot-scale solvent air flotation tower. The cylindrical tower body 1 size: tower height 3000mm, tower diameter 600mm. The gas distribution plate 2 is arranged at the bottom of the cylindrical tower body 1. The thickness of the gas distribution plate is 20mm. 10 is 5mm higher than the plane of the gas distribution disc 2, and the total area of ​​the perforated holes accounts for 20% of the total area of ​​the base of the gas distribution disc 2. At the bottom of the cylindrical tower body 1, below the gas distribution plate 2, three hollow cylinders 3 with the central axis of the tower body as the axis, with different inner diameters and lengths, and nested with each other are set. The diameters are 250mm, 450mm and 600mm respectively, and the lengths are 600mm, 450mm and 250mm respectively. The hollow cylinder 3 with the smallest diameter and the inverted conical cl...

Embodiment 3

[0082] Except adopting 4 hollow cylinders to manufacture a pilot-scale solvent air flotation tower, the thickness of the gas distribution plate is 2mm, and the outer diameter of the small round straight pipe 10 on the gas distribution plate 2 is equal to the inner diameter size of the opening to be 2mm, and The small round straight pipe 10 is higher than the gas distribution disc plane 3mm, and the total area of ​​the perforated holes accounts for 30% of the total area of ​​the gas distribution disc 2 substrates, and other structures are the same as the solvent air flotation tower in embodiment 1. By this The device can obtain bubbles with a diameter of 3mm in the cross section of the tower body accounting for more than 95% of the total bubbles generated, and the number of bubbles in the cross section of the tower body is the same.

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Abstract

The invention provides a uniform gas distribution device for tower-type gas-liquid contact equipment and its application. The device includes a cylindrical tower body and more than two coaxial hollow cylinders arranged at the bottom of the tower body. The central axis of the cylindrical tower is the axis, and the inner diameter and length of each hollow cylinder are not equal, and there is a gap between two adjacent hollow cylinders; the bottom of each hollow cylinder is provided with an inverted tapered closing plate, A liquid discharge pipe is arranged on the closed plate; an air distribution plate is arranged at the bottom of the cylindrical tower, and there are holes on the air distribution plate, and the base of the air distribution plate is sealed and connected with the upper end of the hollow cylinder; An air inlet is provided below the wall. The device can realize the uniform distribution of air bubbles in the cross section of the tower body, the diameter of the air bubbles is uniform, and the device has a simple structure and is easy to process, and is especially suitable for large-scale air distribution equipment.

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. 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 suspension fluidization reaction of solid granular materials, but the gas distribution device is not applicable To produce bubbles of uniform diameter in a liquid. [0004] Both patents CN 102728283A and CN 20270047...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/32B01D11/00
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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