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Composite tower plate with high flux and high defoaming efficiency

A high-throughput, composite tower technology, applied in chemical/physical/physical-chemical processes, chemical instruments and methods, chemical/physical processes, etc., can solve the high requirements for supporting tower internals, low operating flexibility, low processing capacity, etc. problem, to achieve the effect of simple structure, small pressure drop and high defoaming efficiency

Inactive Publication Date: 2020-06-09
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The gas-liquid contact tower is used to separate specific components from multi-component materials. Generally speaking, this gas-liquid contact tower uses trays or packing, or a combination of the two, a combination of random or structured packing and trays The use is beneficial to improve the separation effect of the components in the material; the packing has the advantages of high separation efficiency, small pressure drop, large processing capacity and operation flexibility, etc., but the cost is high, and the requirements for the matching tower internals are high; the trays are resistant to clogging and cost Low, relatively large separation efficiency, but large pressure drop, low processing capacity and small operating flexibility; compounding trays and packing is one of the effective ways to achieve ideal column internals

Method used

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  • Composite tower plate with high flux and high defoaming efficiency
  • Composite tower plate with high flux and high defoaming efficiency
  • Composite tower plate with high flux and high defoaming efficiency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In a plexiglass tower with a plate spacing of 600 mm and a diameter of 1200 mm, install three common fixed valve trays or composite trays with high flux and high defoaming efficiency. The middle tray is the test tray, and the lower tray is the Gas distribution plate, the upper tray is a liquid distribution plate, there are 196 valve holes on the tray, the opening rate of the tray is 20.15%, the adjacent fixed valves are arranged in a regular triangle, the diameter of the valve holes is 40mm, and the center distance is 85mm, the tray uses a rectangular downcomer as the liquid circulation channel, and a mist collector is installed above the upper tray; the defoaming wire mesh packing layer is separated from the tray by a certain distance, the distance is 20mm, and the defoaming wire mesh packing material is 06Cr19Ni10, the wire diameter is 0.2mm, and the thickness of the composite defoaming wire mesh packing layer is 20mm. With air and water as the operating system, under...

Embodiment 2

[0031] In a plexiglass tower with a plate spacing of 600 mm and a diameter of 1200 mm, install three common fixed valve trays or composite trays with high flux and high defoaming efficiency. The middle tray is the test tray, and the lower tray is the Gas distribution plate, the upper tray is a liquid distribution plate; there are 196 valve holes on the tray, and the opening rate of the tray is 20.15%; the adjacent fixed valves are arranged in an equilateral triangle, the diameter of the valve holes is 40mm, and the center distance is 85mm, the tray uses a rectangular downcomer as the liquid circulation channel, and a leakage collector is installed under the lower tray. There is a certain distance between the defoaming wire mesh packing layer and the tray, the distance is 20mm, the material of the defoaming wire mesh packing is 06Cr19Ni10, the wire diameter is 0.2mm, and the thickness of the composite defoaming wire mesh packing layer is 20mm. With air and water as the operatin...

Embodiment 3

[0034] In a plexiglass tower with a plate spacing of 600 mm and a diameter of 1200 mm, install three common fixed valve trays or composite trays with high flux and high defoaming efficiency. The middle tray is the test tray, and the lower tray is the Gas distribution plate, the upper tray is a liquid distribution plate; there are 196 valve holes on the tray, and the opening rate of the tray is 20.15%; the adjacent fixed valves are arranged in an equilateral triangle, the diameter of the valve holes is 40mm, and the center distance is 85mm, the tray uses a rectangular downcomer as the liquid circulation channel. There is a certain distance between the defoaming wire mesh packing layer and the tray, the distance is 20mm, the material of the defoaming wire mesh packing is 06Cr19Ni10, the wire diameter is 0.2mm, and the thickness of the composite defoaming wire mesh packing layer is 20mm. Open 4 round holes with a diameter of 10mm on the middle tray, and insert 4 copper tubes with...

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Abstract

The invention discloses a composite tower plate with high flux and high defoaming efficiency, belonging to the technical field of gas-liquid contact towers. The composite tower plate comprises a towerplate equipped with a valve hole, a downcomer and a tower body, wherein the tower plate is arranged in the tower body. The composite tower plate is characterized in that a defoaming silk screen packing layer is arranged in gas phase space formed among the lower part of the tower plate, a lower-layer tower plate and the tower body; the defoaming silk screen packing layer is a structured packing layer and is of a separated frame structure; and the frame structure is formed by welding steel bars and is provided with studs, so a packing frame is fixed on a supporting device of the tower plate. According to the invention, the defoaming silk screen packing layer with a certain thickness is used as the structured packing layer and mounted in the gas phase space below the tower plate, and space in the tower and the characteristic of small pressure drop are fully utilized, so gas flow mixing strength and a contact interface updating rate are enhanced, the entrainment of the tower plate is reduced, and the flooding gas speed and tower plate efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of gas-liquid contact towers, and in particular relates to a composite tray with high throughput and high foam removal efficiency. Background technique [0002] The gas-liquid contact tower is used to separate specific components from multi-component materials. Generally speaking, this gas-liquid contact tower uses trays or packing, or a combination of the two, a combination of random or structured packing and trays The use is beneficial to improve the separation effect of the components in the material; the packing has the advantages of high separation efficiency, small pressure drop, large processing capacity and operation flexibility, etc., but the cost is high, and the requirements for the matching tower internals are high; the trays are resistant to clogging and cost Low, relatively large separation efficiency, but large pressure drop, low processing capacity and small operating flexibility; compounding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/32
CPCB01J19/32B01J2219/32237B01J2219/32255B01J2219/3325
Inventor 姚克俭郭志胜
Owner ZHEJIANG UNIV OF TECH
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