Negative pressure rectification device with multiple columns connected in series
A negative pressure rectification and rectification column technology, 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, etc.
Active Publication Date: 2021-05-18
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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[0051] The present invention will be further described in detail below in conjunction with 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 entail 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 orientation or positional relationship indicated by the term is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply No device or element must have a specific orientation, be constructed, and operate in a specific orientation and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for des...
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The invention discloses a multi-column serial negative pressure rectification device and an application method thereof. The multi-column serial negative pressure rectification device comprises: an outer shell of a rectangular structure, wherein a plurality of rectification columns are arranged in the outer shell, the adjacent rectification columns are separated by hollow column segments with a predetermined distance, a steam inlet flange communicated with an evaporation unit is arranged on one side of the lower end of the rectification column positioned at the first section, a steam outlet flange communicated with steam evacuation equipment is arranged on one side of the hollow column segment at the tail end, air inlets matched with the steam inlet flanges in space are formed in the bottoms of every two adjacent rectification columns, and matched air outlets are formed in the tops of the opposite faces of the air inlets, so that the rectification columns are connected in series in the outer shell of the rectangular structure through the hollow column segments. According to the negative pressure rectification device with the multiple columns connected in series and the application method of the negative pressure rectification device, the manufacturing difficulty of the rectification column is reduced, the equipment cost is reduced, and compared with a rectification column with the height larger than 50 m, the cost advantage is more obvious.
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 mixed 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 rectification tower, reboiler, condenser, distributor and so on. The feed liquid and the liquid returned from the upper column pass through the packing layer and descend together, and the vapor from the reboile...
Claims
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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