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Regular packing of helical cylindrical net

A structured packing, cylinder technology, applied in chemical/physical/physical-chemical processes, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of increased pressure drop, increased operating costs, etc. The effect of reducing frictional resistance and overcoming shrinkage problems

Active Publication Date: 2008-11-12
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the asymmetric flow of the air flow on the plate corrugated packing, the friction between the gas phases at the crossing point on the flow channel increases the pressure drop and increases the operating cost

Method used

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  • Regular packing of helical cylindrical net
  • Regular packing of helical cylindrical net
  • Regular packing of helical cylindrical net

Examples

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Embodiment Construction

[0018] Choose spiral mesh cylinder structured packing, the raw material is 1mm thick stainless steel expanded mesh, the grid shape is parallelogram, the size is 3mm at the bottom and 6mm in height. A spring of 1 mm is welded to the flat net in a direction parallel to the long side of the flat net, and then rolled into a helical drum with the short side as the axis. The helical wire fixes the distance between each layer and maintains the shape. The cone cap disc on the top of the spiral mesh packing is made of a stainless steel plate with a height of 20mm and a thickness of 1mm in a spiral shape. At its upper end, every 10mm, a gap with a depth of 10mm is cut vertically downward to form a strip flap, and then the strip flap It is turned out so that it forms an angle of 45° with the vertical direction, which acts as a drain pan for the filler.

[0019] The working process of the present invention is that the liquid phase is sprayed from the liquid distributor from the top to the...

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PUM

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Abstract

The present invention discloses one kind of regular helical cylindrical net packing, and belongs to the field of gas-liquid mass transfer separator packing technology. The regular helical cylindrical net packing unit includes a cylindrical helical net and a conic disc on the upper end of the cylindrical helical net. The cylindrical helical net is one multilayer one made of plate net and springs and has several supporting spring rings between helical net layers. The conic disc includes a short helical plate cylinder in the same diameter, layer number and interval between layers and a helical cone disc connected to the short helical plate cylinder. The packing of the present invention is used in gas-liquid mass transfer process, and has the advantages of parallel gas and liquid channels, plunger type flow with low gas phase resistance and high mass transfer efficiency, easy processing of the packing and low cost.

Description

technical field [0001] The invention relates to a new type of structured packing with large flux and low pressure drop, which belongs to the innovation of packing technology of a gas-liquid mass transfer separation device. Background technique [0002] Structured packing has the advantages of large flux, low pressure drop, and high efficiency. After nearly 30 years of development, it has been widely used in chemical, petrochemical and other fields, creating huge social and economic benefits. The typical structured packing is metal plate corrugated structured packing. When this packing is used for gas-liquid mass transfer operations such as rectification or absorption, the gas-liquid two phases in the packing are generally in countercurrent contact mass transfer or heat transfer, and the liquid phase is along the The surface of the filler flows downward in a film shape. When the liquid film is flowing, one side is the gas-liquid contact surface, and the other side is the liqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/32
Inventor 刘春江刘冲袁希钢曾爱武余国琮
Owner TIANJIN UNIV
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