Windowed flow guide type sheet and structured packing

A technology of windowed diversion and structured packing, applied in chemical/physical/physical-chemical processes, chemical instruments and methods, chemical/physical processes, etc. Quality efficiency, enhanced liquid film renewal, high specific surface area

Inactive Publication Date: 2018-04-24
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these inventions all open windows on the traditional corrugated packing sheet, and the mass transfer efficiency is limited.

Method used

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  • Windowed flow guide type sheet and structured packing
  • Windowed flow guide type sheet and structured packing
  • Windowed flow guide type sheet and structured packing

Examples

Experimental program
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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0024] Figure 1 to Figure 4 Shown: The packing sheet is stamped from a composite plate composed of two layers of wire mesh sandwiched by a thin plate. The material of the composite plate can be stainless steel, aluminum, titanium, Hastelloy and other metals, or PTFE, PP, Non-metals such as plastic or carbon fiber; windows are opened on the crests and troughs of the corrugated packing sheet, and holes are opened on the wave surface of the packing sheet. The hole diameter of the wire mesh in the composite board is 0.04mm-0.25mm, the mesh number is 250-40 mesh, and the thickness of the thin plate is 0.05mm-0.2mm. The packing sheet has windows at the crests and troughs, and the windows are composed of diversion windows and windows; the windows on the crests and troughs are respectively on the same horizontal line, and any window in the vertical direction is connected to...

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PUM

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Abstract

The invention provides a windowed flow guide type sheet and structured packing. The windowed flow guide type sheet is characterized in that a packing sheet is a composite plate, a layer of thin platesis sandwiched between two layers of screens to form the composite plate, wave crests and wave troughs of the ripple packing sheet are windowed, and holes are formed in wave surfaces between the wavecrests and the wave troughs of the packing sheets. Windows at the wave crests and the wave troughs of the packing sheet comprise flow guide window bodies and window apertures; the windows on the wavecrests and the wave troughs are arranged on a horizontal line, the distance from an optional window to the adjacent upper window is equal to the distance from the optional window to the adjacent lowerwindow in the vertical direction, and the optional window, the adjacent upper window and the adjacent lower window are arranged on a vertical line. The structured packing comprises a plurality of packing sheets with parallelly arrayed ripples and a wall flow preventive ring. The windowed flow guide type sheet and the structured packing have the advantages that all merits of existing windowed flowguide packing are inherited, the windowed flow guide type sheet and the structured packing have large specific surface areas and are effective in wettability, uniform liquid distribution and liquid film updating can be reinforced, dead spaces in the packing can be diminished, and the mass transfer efficiency can be obviously improved.

Description

technical field [0001] The invention relates to a structured packing in the gas-liquid mass transfer process of a chemical industry, in particular to a window-opening flow-guiding packing sheet and a structured packing used in unit operations such as rectification, absorption, and extraction. Background technique [0002] Structured packing is a kind of packing that is arranged in a uniform pattern in the packed tower and stacked neatly. It specifies the gas-liquid flow path, improves channel flow and wall flow, has the advantages of low pressure drop and high specific surface area, and can achieve higher mass and heat transfer effects in the same volume. There are many types of structured packing, which can be divided into wire mesh corrugated packing, plate corrugated packing and mesh corrugated packing according to the structure of the material. Metal mesh corrugated packing has the characteristics of high efficiency, large flux, pressure drop, and small liquid holdup, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/32
CPCB01J19/32B01J2219/3221
Inventor 刘春江谢省宾刘辉成洁
Owner TIANJIN UNIV
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