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Oil gas separation ceramic compound film tube and component and preparation thereof

A ceramic composite membrane, composite membrane tube technology, applied in separation methods, chemical instruments and methods, semi-permeable membrane separation and other directions, can solve problems such as breakage, oil leakage, deformation of polymer hollow fiber composite membrane components, etc., to reduce the dosage , cost reduction, and the effect of fast ventilation

Active Publication Date: 2008-08-13
南京无书化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the transformer is in operation, the temperature of the insulating oil may reach more than 70°C, the oil column with a height of more than ten meters will generate a certain static pressure, and the gear pump used to transport the oil may generate a boost effect. These factors may make the polymer The hollow fiber composite membrane module is deformed, resulting in damage defects and oil leakage

Method used

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  • Oil gas separation ceramic compound film tube and component and preparation thereof
  • Oil gas separation ceramic compound film tube and component and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An internal pressure ceramic membrane tube with a pore diameter of 50nm is selected. The inner diameter of the ceramic tube is 10mm, the outer diameter is 12.5mm, and the length is 100mm. Clean it with ethanol solution. The separation layer is selected from Teflon AF2400 solution produced by DuPont Company of the United States, and the concentration of the solution is 1.0% by weight. Pour the polymer solution into a film tube temporarily sealed at one end, keep pouring it out for 0.5min, apply it repeatedly 7 times, heat up to 200°C for drying treatment, and remove the solvent. The thickness of the separation layer can be determined from the cross-sectional scanning electron microscope to be about 5 μm. The assembly formed by the membrane and the stainless steel casing is connected with a small simulated transformer in the laboratory, tested with an online oil chromatography system, and the oil-gas balance can be reached within 2 hours. The component was filled with oi...

Embodiment 2

[0023] An internal pressure ceramic membrane tube with a pore diameter of 100nm is selected. The inner diameter of the ceramic tube is 10mm, the outer diameter is 12.5mm, and the length is 100mm. Clean it with ethanol solution. The separation layer was selected from Hyflon AD80 produced by Solvay Solexis, and the solvent was Galden HT90 solution with a concentration of 8.0% by weight. Pour the polymer solution into a film tube that is temporarily sealed at one end, keep pouring out for 1 min, coat once, heat up to 250°C for drying, and remove the solvent. The assembly formed by the membrane and the stainless steel casing is connected with a small simulated transformer in the laboratory, tested with an online oil chromatography system, and the oil-gas balance can be reached within 4 hours. The component was filled with oil and kept under 500kPa pressure for 48 hours without any rupture or oil leakage.

Embodiment 3

[0025] Select an external pressure ceramic tube with a pore diameter of 100nm, the inner diameter of the ceramic tube is 10mm, the outer diameter is 13.0mm, and the length is 100mm, and it is cleaned with ethanol solution. The separation layer was selected from Hyflon AD80 produced by Solvay Solexis, and the solvent was Galden HT90. After dissolving the polymer, add 5% of the total hydrophobic nano-SiO 2 , ultrasonic dispersion. The average particle size of the nanometer powder is 20nm, and the total weight percent concentration of solids in the solution is 1.0%. Pour the polymer solution into a film tube that is temporarily sealed at one end, keep pouring it out for 8 minutes, coat it 6 times, heat it up to 200°C for drying treatment, and remove the solvent. The assembly formed by the membrane and the stainless steel casing is connected with a small simulated transformer in the laboratory, tested with an online oil chromatography system, and the oil-gas balance can be reach...

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Abstract

The present invention provides a gas-oil dissociation ceramic composite film tube and its component and preparing method, the film and the component are mainly used for power equipment dielectric oil degassing online. The ceramic composite film tube use hyperfiltration, microfiltration or nanofiltration ceramic film tube as a support layer, a separating layer is a polymer having better oil resistance and ventilation property, a polymer film tube is formed on the surface of the ceramic tube by coating method. A degassing component is composed of a composite film tube, a case and an oil resistant rubber seal ring. The component may includes single ceramic composite film tube and also assembled by multiple film tubes. The component case is set with inlet and outler for gas and oil. The invention component combines the high strength of the ceramic film tube and the macromolecule better air permeability, has a rapid degassing speed, lower cost, convenient installation and use.

Description

technical field [0001] The invention relates to an oil-gas separation ceramic composite membrane tube with fast ventilation speed and convenient installation and use, its components and a preparation method, which are mainly used in the on-line degassing and purification process of insulating oil in electric equipment and in an oil-gas separation system for monitoring dissolved gas in oil. Background technique [0002] Many large-scale power equipment, such as transformers, substation switches, etc., need to dissipate the heat generated through insulating oil during operation, and at the same time, insulate and isolate the components inside the equipment. A transformer is one of the most important devices in a power system. The following description takes the transformer as an example, but obviously the scope of application of the present invention is not limited to the transformer. The quality of the transformer directly affects the safe operation of the power grid. For la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/00B01D63/06B01D69/04B01D69/10
Inventor 韩毓旺禚莉
Owner 南京无书化工有限公司
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