Device capable of completely eliminating wall flow effect and integrated with tower body and method for mounting device

A technology that completely eliminates wall flow effects, applied in chemical instruments and methods, chemical/physical processes, chemical/physical/physical chemical processes, etc., can solve problems affecting separation effect, backmixing, wall flow, etc. Efficiency, easy processing, simple material effect

Inactive Publication Date: 2012-07-25
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the liquid flowing to the periphery of the packing can only flow down the tower wall, or when the liquid is initi

Method used

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  • Device capable of completely eliminating wall flow effect and integrated with tower body and method for mounting device
  • Device capable of completely eliminating wall flow effect and integrated with tower body and method for mounting device
  • Device capable of completely eliminating wall flow effect and integrated with tower body and method for mounting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The liquid receiving ring 1 selects a stainless steel sheet that meets the GB / T G3280-2007 standard, with a length of 1200mm, a width of 75mm, and a thickness of 0.2mm. The lower part has an opening width of 20mm and an opening depth of 35mm, and is welded to the inner wall of the tower. The liquid redistribution ring 2 also chooses GB / T G3280-2007 standard stainless steel thin steel sheet, the cylinder height is 35mm, the circumference is 1200mm, and the bottom ring is 10mm wide.

[0038] This device is used in a rectification tower with an inner diameter of 380mm. The height of each section of packing is 100mm. Each section of packing is equipped with this device. The height of the packing layer is 1000mm. 350Y stainless steel structured packing is used. The rectification tower separates the benzene-ethylbenzene mixture. First of all, this device is not used, and only the above-mentioned packing is used. The wall flow is about 37.9%. After using this device, no wall flow ...

Embodiment 2

[0040] The liquid receiving ring 1 selects a stainless steel sheet that meets the GB / T G3280-2007 standard, with a length of 3160mm, a width of 200mm, and a thickness of 0.2mm. The lower part has an opening width of 30mm and an opening depth of 90mm, and is welded to the inner wall of the tower. The liquid redistribution ring 2 also chooses GB / T G3280-2007 standard stainless steel thin steel sheet, the cylinder height is 130mm, the circumference is 3160mm, and the bottom ring is 15mm wide.

[0041] This device is used in a rectification tower with an inner diameter of 1000mm. The height of each section of the packing is 300mm. Each section of the packing is equipped with this device. The height of the packing layer is 6000mm. The 250Y stainless steel structured packing is used. The distillation column separates the ethanol-water mixture. First of all, this device is not used, only the above-mentioned packing is used, and there is about 28.6% wall flow. After using this device, no ...

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Abstract

The invention relates to a device capable of completely eliminating a wall flow effect and integrated with a tower body and a method for mounting the device. The device is composed of a liquid collecting circle 1 and a liquid redistribution circle 2, wherein the upper end of the liquid collecting circle is welded to the inner wall of the tower below a packing layer, while the lower end thereof is cut out; the liquid redistribution circle is a barrel with a circular ring at the bottom; the liquid redistribution circle is inserted between the tower wall 3 and the liquid collecting circle; the upper end of the liquid redistribution circle is higher than the lower end of the cut-out position of the liquid collecting circle; and the bottom circular ring of the liquid redistribution circle is arranged on the packing layer. No gap is reserved between the upper part of the liquid collecting circle of the device and the tower body, so that the phenomenon that liquid flowing along the wall is collected incompletely can be avoided; therefore, secondary wall flow is prevented.

Description

Technical field [0001] The invention relates to related equipment of a packed tower. Specifically, it is a device that is integrated with the tower body and can completely eliminate the wall flow effect and an installation method thereof. Background technique [0002] Packed towers are widely used in chemical, petrochemical, food, pharmaceutical and other industries. Structured packing has the advantages of high heat and mass exchange efficiency, large operating flexibility, and small liquid holding capacity. Because the liquid flowing to the periphery of the packing can only flow down the tower wall, or when the liquid is initially unevenly distributed, wall flow will be formed, causing back mixing, which will seriously affect the separation effect. Studies have shown that when the packed tower does not take measures to prevent wall flow, there will be 10% to 40% of the wall flow, which will affect the separation effect by more than 10%. Therefore, reducing or eliminating the w...

Claims

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Application Information

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IPC IPC(8): B01J19/30
Inventor 刘春江丁晖殿袁希钢郭凯
Owner TIANJIN UNIV
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