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Multi-column series negative pressure rectification device

A technology of negative pressure rectification and rectification column, which is applied in the field of rectification and separation of multi-component liquid mixtures, can solve the problems that the rectification effect cannot meet the design requirements, and achieve the solution of uneven distribution of liquid, increase of specific surface area, small size effect

Active Publication Date: 2022-07-29
绵阳科大久创科技有限公司
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Problems solved by technology

As a result, the rectification effect cannot meet the design requirements, especially when the diameter of the rectification column is relatively large, this effect will be greater

Method used

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  • Multi-column series negative pressure rectification device

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Embodiment Construction

[0051] The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0052] It should be understood that terms such as "having", "comprising" and "including" as used herein do not assign the presence or addition of one or more other elements or combinations thereof.

[0053] It should be noted that, in the description of the present invention, the azimuth or positional relationship indicated by the terms is based on the azimuth or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that A device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are ...

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Abstract

The invention discloses a multi-column series negative pressure rectification device and an application method thereof, comprising: an outer casing of a rectangular structure, in which a plurality of rectification columns are arranged, and adjacent rectification columns pass through a predetermined distance The empty column sections are spaced apart; wherein, the side of the lower end of the rectifying column located in the first section is provided with a steam inlet flange communicating with the evaporation unit; the side of the empty column section located at the end is provided with a steam outlet communicating with the steam evacuation equipment flange; the bottom of the two adjacent rectification columns is provided with an air inlet that matches the steam inlet flange in space, and a matching air outlet is arranged on the top of the opposite side of the air inlet, so that each fine The distillation columns are connected in series in the outer shell of the rectangular structure through empty column sections. The invention provides a multi-column series negative pressure rectification device and an application method thereof, which reduces the manufacturing difficulty of the rectification tower, reduces the equipment cost, and has more obvious cost advantages compared with the rectification tower with a height of more than 50m.

Description

technical field [0001] The invention relates to the technical field of rectification and separation of multi-component liquid mixtures, in particular to a multi-column series negative pressure rectification system. Mainly used in the separation and extraction of super heavy water from natural water (D 2 18 O), also suitable for the separation of multi-component liquid mixing systems. Background technique [0002] Rectification is a distillation method that uses reflux to separate liquid mixtures. It is the most widely used liquid mixture separation operation in the chemical industry, and is widely used in petroleum, chemical, light industry, food, metallurgy and other departments. The traditional rectification equipment is a continuous rectification device, including a rectification column, a reboiler, a condenser, a distributor, and the like. The feed liquid and the liquid returning from the upper column section descend together through the packed layer, and the vapor fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/14
CPCB01D3/148B01D3/143B01D3/14
Inventor 罗杰
Owner 绵阳科大久创科技有限公司
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