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Dry type supercritical carbon dioxide fluid cleaning device and cleaning method thereof

A carbon dioxide and cleaning device technology, applied in the field of cleaning, can solve the problems of high energy consumption and achieve short cleaning time and good cleaning effect

Pending Publication Date: 2022-04-12
杨景峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Petroleum dry cleaning is a method that uses the principle of homogeneous compatibility to dissolve non-polar or weakly polar objects to be cleaned (mainly oils with a molecular weight larger than the cleaning solvent) in the cleaning solvent, thereby degreasing the clean items. After petroleum dry cleaning, the solvent and the liquid to be cleaned in it need to be separated before being reused. This process consumes a lot of energy

Method used

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  • Dry type supercritical carbon dioxide fluid cleaning device and cleaning method thereof
  • Dry type supercritical carbon dioxide fluid cleaning device and cleaning method thereof
  • Dry type supercritical carbon dioxide fluid cleaning device and cleaning method thereof

Examples

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Embodiment 1

[0048] Such as figure 1 As shown, there is provided a dry-type supercritical carbon dioxide fluid cleaning device which is energy-saving, environmentally friendly, and has high cleaning efficiency. The solvent is a natural working medium and can be used repeatedly. It mainly includes a superfluid storage tank 10, a heater 20, and an air cooler. 30 and cleaning cylinder 40.

[0049] Specifically, the superfluid storage tank 10 adopts a high-pressure resistant tank body, which stores carbon dioxide in a liquid, gaseous or supercritical state due to different temperatures and pressures, and is used to transfer to the cleaning cylinder through pressure and temperature changes at the initial stage of cleaning. The body provides supercritical carbon dioxide fluid as a cleaning solvent for cleaning the objects to be cleaned in the cylinder body 40 . Supercritical carbon dioxide fluid has a strong dissolving ability for non-polar and weak polar substances, and can dissolve non-polar ...

Embodiment 2

[0061] Such as image 3 As shown, based on the dry supercritical carbon dioxide fluid cleaning device of the above-mentioned embodiment one, the present embodiment provides a dry supercritical carbon dioxide fluid cleaning method, which specifically includes the following steps:

[0062] (1) Load the parts to be cleaned into the cleaning cylinder 40, add a bridging agent according to the characteristics of the objects to be cleaned, and close the quick-opening door 42 to seal the superfluid storage tank 10;

[0063] (2) The pneumatic automatic operation program measures the temperature of the supercritical carbon dioxide fluid in the superfluid storage tank 10 through the built-in temperature probe. When it is lower than 31.1° C., the heater 20 is automatically activated for heating to heat the supercritical carbon dioxide fluid to 31.1° C. Temperature above ℃;

[0064] (3) The supercritical carbon dioxide fluid discharged from the superfluid storage tank 10 by using the pres...

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Abstract

The invention discloses a dry type supercritical carbon dioxide fluid cleaning device and method, and the device comprises a superfluid storage tank which is used for providing supercritical carbon dioxide fluid to a system as a cleaning solvent; the heater is arranged in the superfluid storage tank and is used for heating the supercritical carbon dioxide fluid to a set temperature; the air cooler is connected with the superfluid storage tank and is used for cooling the supercritical carbon dioxide fluid to a set temperature; a plurality of groups of nozzles communicated with the air cooler are distributed in the cleaning cylinder, and the cleaning cylinder is used for receiving the supercritical carbon dioxide fluid to clean a cleaning part in the cleaning cylinder. The supercritical carbon dioxide fluid is adopted to achieve dissolution and cleaning of non-polar or weak-polar materials, physical separation of the solvent and the cleaned object is achieved through phase change caused by pressure change of the supercritical fluid, and the supercritical carbon dioxide fluid phase change cleaning device has the advantages of being good in cleaning effect, short in cleaning time, free of abrasion to the cleaned part, free of pollution to the environment and the like.

Description

technical field [0001] The invention relates to the technical field of cleaning, in particular to a dry supercritical carbon dioxide fluid cleaning device and a cleaning method thereof. Background technique [0002] Existing cleaning techniques are divided into dry cleaning and wet cleaning. Due to the use of water and the inability to separate the added cleaning solvent, wet cleaning will cause pollution along with the simultaneous discharge of water. Because the liquid has a certain surface tension, wet cleaning needs to be pressurized to high pressure for fine pores, especially fine pores less than 40um. cleaning. Industrial dry cleaning and civilian dry cleaning are becoming more and more popular with the improvement of environmental protection and people's living requirements. Traditional dry cleaning uses perchlorethylene as a solvent with certain toxicity, and its hazards have been gradually recognized. Petroleum dry cleaning is a method that uses the principle of ...

Claims

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Application Information

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IPC IPC(8): B08B3/10B08B13/00
Inventor 杨景峰
Owner 杨景峰
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