Anti-static flow diversion net and preparation method and application thereof

An anti-static and diversion net technology, applied in the direction of separation methods, chemical instruments and methods, textiles and papermaking, etc., can solve the problems of affecting separation efficiency, poor corrosion resistance, and attenuation of electrical conductivity, and achieve simple preparation process and conductive Performance permanent, good friction resistance effect

Active Publication Date: 2015-12-02
JIANGSU JIUMO HIGH TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the metal mesh reduces the effective area of ​​the membrane module and increases the operation process, which affects the production efficiency; the metal wire (net) is easy to scratch the membrane surface and affects the separation efficiency; the metal wire (net) is easy to be in poor contact; the metal wire (net) poor corrosion resistance
Some other methods, such as plastic electroplating, cover metal particles on the surface of conventional deflector nets. Although they can serve the purpose of anti-static, their corrosion resistance is poor, and their electrical conductivity decays quickly during use.
There is also the method of dipping the conventional flow guide net in the antistatic liquid, which will cause peeling and falling off during long-term use (such as vibration, humid and hot environmental factors), and also has the problem of attenuation of electrical conductivity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Mix polyacrylonitrile-based carbon fiber yarn (Tianhua Yiwei Special Fiber Co., Ltd., model T300-24K) and nylon yarn (Zhiyuan Textile Factory, model 66-dty) into raw material yarn in a ratio of 1:1. The raw material yarns are placed on the creel at equal intervals in different positions, so that the antistatic yarns are evenly distributed on the warping head. The distance between the antistatic yarns and the antistatic yarns is 1mm, and the warping speed is 220m / min. Load the warped pan head into the loom according to the requirements, and warp knitting with symmetrical lapping. The woven gray cloth is heated in an oven at 180°C for 1 hour to harden the fibers and obtain an anti-static diversion net with a certain tensile strength, and its surface resistivity is 1.5×10 7 Ω.

Embodiment 2

[0027] Polyacrylonitrile-based carbon fiber yarn (Tianhua Yiwei Special Fiber Co., Ltd., model T300-24K) and polyester yarn (Hangzhou Renliang Chemical Fiber Co., Ltd., model DTY-100D) are mixed into raw material yarn in a ratio of 1:9. The good raw material yarns are placed on the creel at equal intervals in different positions, so that the antistatic yarns are evenly distributed on the warping head. The distance between the antistatic yarns and the antistatic yarns is 3mm, and the warping speed is 220m / min. Load the warped pan head into the loom according to the requirements, and warp knitting with symmetrical lapping. The woven gray cloth is heated in an oven at 150°C for 1.5 hours to harden the fibers and obtain an anti-static flow net with a certain tensile strength, and its surface resistivity is 10 8 Ω.

Embodiment 3

[0029] Phenolic-based carbon fiber yarn (Tianhua Yiwei Special Fiber Co., Ltd., model PF3K) and polyester yarn (Hangzhou Renliang Chemical Fiber Co., Ltd., model DTY-100D) are mixed into raw material yarns in a ratio of 9:1. Place them on the creel at equal intervals in different positions, so that the antistatic yarns are evenly distributed on the warping head. The distance between the antistatic yarns and the antistatic yarns is 0.2mm, and the warping speed is 220m / min. Load the warped pan head into the loom according to the requirements, and warp knitting with symmetrical lapping. The woven gray cloth is heated in an oven at 300°C for 2 hours to harden the fibers and form an anti-static flow net with a certain tensile strength, and its surface resistivity is 1.8×10 6 Ω.

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Abstract

The invention relates to an anti-static flow diversion net and a preparation method and application thereof. The preparation method of the flow diversion net includes the steps that anti-static filaments and chemical fiber filaments are placed at equal intervals and evenly distributed on a warping disk head after being mixed according to a certain proportion; then, warp knitting is performed in a symmetrical yarn laying mode so that gray fabric can be knitted, and the gray fabric is hardened to be formed after being heated, stretched and cooled. The flow diversion net can be used for a gas flowing channel in a rolling type gas separation membrane assembly and can also conduct out static electricity generated due to friction in the rolling type membrane assembly, and conductivity is permanent and will not change along with time. The flow diversion net further has good friction resistance, buckling resistance, oxidation resistance and corrosion resistance. The preparation process is simple, production efficiency is high, the matching ratio can be flexibly changed, the flow diversion net is applicable to large-scale production, energy consumption in the preparation process is low, the flow diversion net is clean and free of pollution, and production cost is low.

Description

technical field [0001] The invention relates to the technical field of gas membrane separation, in particular to an antistatic flow guiding net and its preparation method and application. Background technique [0002] Gas membrane separation is a high-efficiency, energy-saving, and environmentally-friendly emerging technology that can effectively separate some gases. It can be used to adapt to the changing requirements of the processing capacity by adjusting the membrane area and process parameters. In the process of separation and recovery of flammable and explosive gases such as organic vapor, because the gas is not completely pure, it often contains solid or liquid particles such as dust, iron powder, liquid droplets, and steam. Static electricity is generated. In addition, high-speed flowing gas will also generate static electricity when it flows through the diversion net. Since the conventional diversion net is an insulator, the static electricity will continue to accu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04B21/14D04B21/16D06C7/00B01D53/22
Inventor 丁晓斌王刚孙雪飞王容
Owner JIANGSU JIUMO HIGH TECH CO LTD
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