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Self-circulation dry cleaning machine

A technology of dry cleaning machines and washing kettles, applied in the field of dry cleaning machines, to achieve the effects of small temperature change range, increased washing effect, and improved mass transfer driving force

Inactive Publication Date: 2009-05-13
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But process equipment also needs to rely on pumps and compressors to achieve fluid circulation

Method used

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  • Self-circulation dry cleaning machine

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Subcritical Carbon Dioxide Washing of Oily Cotton Fabrics

[0033] Cotton fabric coated with organic oil; carbon dioxide, purity ≥98%. The temperature of the dirt kettle D is 321K. The pressure P is 6MPa, and the temperature T1 is 291K. Dry cleaning self-cycle 3 times (about 27 minutes), the cotton fabric has no oil adhesion, the removal rate is 96%; self-cycle 4 times (about 36 minutes), the oil removal rate is 99%. When the temperature of washing tank B is 297K, dry cleaning self-circulation 2 times (about 18 minutes), the cotton fabric has no oil adhesion, and the removal rate is 94%; self-circulation 3 times, the oil removal rate is 97%.

Embodiment 2

[0035] Subcritical carbon dioxide washing of oily woolen cloth

[0036] Cotton fabric coated with organic oil; carbon dioxide, purity ≥98%. The temperature of the dirt kettle D is 321K, the pressure P is 6MPa, the temperature T1 of the washing kettle B is 297K, the dry cleaning self-circulation is performed twice, the cotton fabric has no oil adhesion, and the removal rate is 89%; the self-circulation is three times, and the oil removal rate is 98%.

Embodiment 3

[0038] Subcritical and supercritical carbon dioxide washing of oily cotton fabrics

[0039] Cotton fabric coated with organic oil; carbon dioxide, purity ≥98%. The temperature of the washing tank B is kept at 313K first, and the pressure P shows about 9MPa, and it is kept for 10 minutes. Then keep the temperature of washing tank B at 297K, and carry out dry cleaning self-circulation twice, and the cotton fabric has no oil adhesion, and the removal rate is 99%.

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Abstract

The invention discloses a self-circulating dry washer, and relates to a dry washer, in particular to a device for self-circulating dry washing by subcritical or combined supercritical fluid. A pumplessly driven self-circulating dry washer for the self-circulating dry washing by the subcritical or the combined supercritical fluid is provided, and is provided with a washing kettle, a siphon tube, a dirt kettle, a lift tube and a condenser, wherein the washing kettle is provided with an inlet of a pressure fluid source, the siphon tube is arranged between the washing kettle and the dirt kettle, the dirt kettle is provided with a heating device and a sewage outfall, the lift tube is arranged between the dirt kettle and the condenser, and a water return tube is arranged between an outlet of the condenser and the washing kettle.

Description

technical field [0001] The invention relates to a dry cleaning machine, in particular to a device for self-circulating dry cleaning with subcritical or combined supercritical fluid. Background technique [0002] At present, tetrachlorethylene is widely used as a dry cleaning solvent in the world, and the machines used are called tetrachlorethylene dry cleaning machines. Although tetrachlorethylene has excellent cleaning effect as a dry cleaning solvent, tetrachlorethylene will cause significant harm to the environment and human body. Due to the leakage of tetrachlorethylene solvent, the volatilization pollutes the air in the environment of the dry cleaning workshop, increasing the content of chlorine-containing gas. When the concentration is greater than 100ppm, people will smell an uncomfortable smell; when it is greater than 200ppm, it will cause mild irritation of the eyes and a slight headache; You will feel a very strong unpleasant smell and strong irritation to your ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F43/00D06F43/08D06B9/00
Inventor 李军宋强苏玉忠王宏涛
Owner XIAMEN UNIV
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