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A Wetted Wall Column Used to Study the Mechanism of Gas-liquid Mass Transfer

A gas-liquid mass transfer, wet-wall tower technology, applied in gas treatment, separation methods, dispersed particle separation, etc., can solve the problems of low gas-liquid reaction efficiency, low removal efficiency, etc., to reduce the amplification effect and achieve uniform liquid distribution. , the effect of uniform air distribution

Active Publication Date: 2019-01-15
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to address the existing problems and provide a wetted wall tower for studying the mechanism of gas-liquid mass transfer, which can solve the technical problems of low removal efficiency of harmful gases and low gas-liquid reaction efficiency in the prior art

Method used

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  • A Wetted Wall Column Used to Study the Mechanism of Gas-liquid Mass Transfer
  • A Wetted Wall Column Used to Study the Mechanism of Gas-liquid Mass Transfer
  • A Wetted Wall Column Used to Study the Mechanism of Gas-liquid Mass Transfer

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Embodiment 1

[0059]The invention provides a wetted wall tower for studying the gas-liquid mass transfer mechanism, the contact area between the gas-liquid two phases of the wetted wall tower can be measured, so it can be used for researching the gas-liquid mass transfer mechanism. Its structure is as figure 1 shown, including:

[0060] Sleeve 1, liquid distribution device 2, gas distribution device 3, upper flange cover 4, lower flange cover 5 and seal 6.

[0061] The sleeve 1 is a shell with a hollow structure, and the shell may be a cylindrical shell or a prismatic shell, and the hollow part inside it is called an accommodating cavity here. The sleeve 1 is provided with an upper flange and a lower flange below. The side wall of the sleeve 1 is provided with an insulating liquid inlet 11 and an insulating liquid outlet 12, wherein the insulating liquid outlet 12 is located near the bottom of the side wall, and the insulating liquid inlet 11 is located near the top of the side wall.

[...

Embodiment 2

[0085] The structure of embodiment two is as Figure 4 As shown, the difference between it and the first embodiment is that the overflow body 23 in the second embodiment does not include the overflow hole 231 and the liquid storage tank 232 . At this time, it is only necessary to ensure that one end of the cap 24 is connected to the wetted wall portion 20 , is located above the overflow body 23 and has a gap between the overflow body 23 . In this way, the liquid entering the liquid receiving chamber runs from bottom to top to the upper end of the overflow body 23, flows out from the gap between the cap 24 and the overflow body 23, and flows down along the inner edge of the overflow body 23 to form a liquid film.

Embodiment 3

[0087] The structure of embodiment three is as Figure 5 As shown, the difference between it and the first embodiment is that the overflow body 23 in the second embodiment includes a liquid storage tank 232 and does not include an overflow hole 231 . At this time, as long as one end of the cap 24 is connected to the wetted wall 20 and there is a gap between the overflow body 23 (that is, the top of the two sides of the liquid storage tank 232 ) and the overflow body 23 . In this way, the liquid entering the liquid receiving chamber runs from bottom to top to the upper end of the overflow body 23, flows from the gap between the cap 24 and the overflow body 23 to the liquid storage tank 232, and goes down along the inner side of the liquid storage tank 232 Flow forms a liquid film.

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PUM

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Abstract

The invention provides a wetted-wall tower for studying a gas-liquid mass transfer mechanism. A sleeve (1) is a casing with an accommodating cavity, a liquid distribution device (2) is placed in the accommodating cavity of the sleeve (1), and a heat insulation jacket is formed between the liquid distribution device (2) and the sleeve (1). The liquid distribution device (2) comprises a liquid receiving cavity and a gas-liquid reaction cavity, liquid flows into the liquid receiving cavity from the bottom and runs upwards to the position of a set interval to overflow to the gas-liquid reaction cavity to fall down to form a liquid film; a gas distribution device (3) is arranged in a hollow part of the liquid distribution device (2) and comprises an air inlet pipe (31), and gas entering from the air inlet pipe (31) flows from the bottom and runs upwards and then returns to the bottom and then runs upwards reversely. Through the liquid distribution device, liquid is evenly distributed on an overflow body, an amplification effect resulting from poor distribution of the liquid in the prior art is reduced, and removal efficiency of the wetted-wall tower is brought into full play. Through the overflow body, it can be guaranteed that fluid flow on the inner wall of the wetted-wall tower is constant.

Description

technical field [0001] The invention relates to experimental equipment for studying the mechanism of gas-liquid mass transfer, in particular to a wetted wall tower for studying the mechanism of gas-liquid mass transfer. Background technique [0002] Local air pollution and global climate change have aroused widespread concern about the living environment, health and safety, and low-carbon economy has become a hot topic in the international arena. In some areas of our country, the air pollution caused by coal combustion, such as acid rain, has brought great harm to the local ecological environment and the health of residents. NOx and SO emissions from thermal power plants 2 It is the main source at present. If it is not controlled, the future acid rain pollution in my country may develop from sulfuric acid type to sulfuric acid / nitric acid compound type. [0003] At present, the wetted wall column is mainly used as the reactor to study the 2 , NO, SO 2 Kinetic data of sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18B01D53/78
CPCB01D53/18B01D53/78B01D2258/02
Inventor 李清海刘振张衍国谭中超
Owner TSINGHUA UNIV