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Novel static mixer for gas mixing

A static mixer, gas mixing technology, applied in the direction of fluid mixer, gas and gas/vapor mixing, mixer, etc., can solve the problem of unsatisfactory mixing effect, etc., to prolong the residence time, improve the mixing rate, and improve the turbulent flow. the effect of strength

Inactive Publication Date: 2011-01-12
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

[0007] The purpose of the present invention is: in order to overcome the shortcomings of the existing static mixer structure and the unsatisfactory mixing effect, the present invention provides a new type of static mixer for gas mixing

Method used

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Embodiment Construction

[0018] The specific implementation manner of the present invention is described with reference to the accompanying drawings.

[0019] Such as figure 1 , 2 , 3, 4 shown.

[0020] The design length of the mixer is 1200mm, the inner diameter of the main pipe is 300mm, the inner diameter of the auxiliary pipe is 50mm, the wall thickness is 10mm, α is 18°, β is 18°, the blade axial distance L is 100mm, and the blade height H is 160mm. The two gases enter from the main pipe 1 and the auxiliary pipe 2 respectively, and the two gases start to mix at the outlet of the auxiliary pipe 2, and then the gas after preliminary mixing flows to the first blade 3, because the blade area is large and has a certain inclination angle- α is the inclination angle of the blade, β is the rotation angle of the blade, and L is the axial spacing of the blade. A part of the mixed gas will flow to the other side of the flow channel. Because the space becomes smaller, the mixed gas is squeezed through, an...

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Abstract

The invention relates to a novel static mixer for gas mixing in a natural gas sulfur recovery super Claus process, which can effectively solve the problem of full-mixing incapability in a turbulent mixing process and improve gas mixing effect. The technical scheme is that: a main pipe is a circular steel pipe, while an auxiliary pipe is vertically inserted into the main pipe from a central line of a right semi-circle of the section of the main pipe; an outlet of the auxiliary pipe has a wedged structure; eight blades are arranged in the main pipe; each blade has a circular arc shape, an inclined angle alpha, a rotating angle beta and a height H; an axial interval between every two blades is L; the pipe walls of the main pipe and the auxiliary pipe are 5 to 10mm thick; and the wedged outlet is 5 to 10mm wide. The static mixer can prolong the residence time of gases in the mixture, and improve the turbulence intensity of the gases to further improve the mixing rates of the mixed gases, and can be used for the natural gas purification sulfur recovery super Claus process.

Description

technical field [0001] The invention relates to a novel static mixer used for gas mixing in natural gas sulfur recovery super Claus process. technical background [0002] The static mixer is one of the most critical equipment in the Super Claus sulfur recovery process, and its mixing performance has an important impact on the total sulfur recovery rate of the entire process. Traditional static mixers have high performance for laminar flow, but are not effective for turbulent mixing that is widespread in the natural gas industry. For the turbulent mixing process, the mixing effect is mainly restricted by two factors: ① the residence time of the fluid in the mixer; ② the turbulence intensity of the fluid. The first point can be solved by extending the flow channel, but this increases the volume of the equipment. Therefore, the internal structure of the mixer must be reset. The new structure can not only increase the residence time of the fluid, but also increase the turbulenc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F5/06B01F3/02C01B17/04B01F23/10
Inventor 艾志久黄涛游国庆常宏岗何金龙陈昌介
Owner SOUTHWEST PETROLEUM UNIV
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