Solid CO2 washing method

Abstract

The invention discloses a solid CO2 washing method, and relates to the technical field of dry ice washing. The method is characterized by comprising the following steps that S1, an intelligent dry icewashing machine is selected, and an image acquisition device and a display device are arranged on the intelligent dry ice washing machine; S2, a dry ice spray gun is selected to be connected with thedry ice washing machine, and nozzles and a gear shifting mechanism are arranged at a spraying opening of the dry ice spray gun; S3, an image aligned with the dry ice spray gun is transmitted to the display device; S4, the shape and dirt degree of a workpiece are judged through the display device, washing parameters are set, and the gear shifting mechanism is controlled to switch the nozzles for use; S5, the intelligent dry ice washing machine is started to wash the workpiece; and S6, whether washing is clean or not is judged through the display device, if so, washing is ended, otherwise, S4 is cycled till the washing is clean. The method has the advantages that visual washing can be realized, the shapes of the nozzles and the washing parameters are adjusted according to the washing environment, thus flexibility and convenience are realized, and finally, the washing effect is improved.

Description

technical field [0001] The invention relates to the technical field of cleaning, more specifically, it relates to a solid CO2 cleaning method. Background technique [0002] The common cleaning methods are high-pressure water cleaning and abrasive cleaning, etc. The main cleaning medium is likely to cause the equipment to fail. Therefore, the dry ice cleaning method is disclosed in the prior art. By spraying dry ice onto the surface of the object to be cleaned, the energy conversion such as momentum change, sublimation, and melting of solid dry ice particles moving at high speed is used to make the dirt, oil, and residue on the surface of the object to be cleaned Impurities, etc. are frozen quickly, so as to coagulate, embrittle, and be stripped, and at the same time, they are removed with the clear flow, which will not cause any damage to the surface of the object to be cleaned, especially the metal surface, and will not affect the smoothness of the metal surface. [0003] ...

AI Technical Summary

Problems solved by technology

However, the structure of each cleaning workpiece is different, and some may need to be inserted into the inside of the workpiece for cleaning. However, in the existing dry ice cleaning method, it is a blind operation when cleaning the inside of the workpiece, and it is impossible to accurately judge the cleaning situation. Narrow, the shape of the nozzle is single during cleaning, and it cannot be adjusted flexibly according to the environment, resulting in inflexible and convenient use and affecting the cleaning effect

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