Pipeline cavitation cleaning effect detecting system

Abstract

The invention discloses a pipeline cavitation cleaning effect detecting system. The pipeline cavitation cleaning effect detecting system comprises a power unit, a control unit, an execution unit and acavitation detecting device; the cavitation detecting device comprises a high speed camera, a methylene blue spectrophotometer and a stress-strain gage; and the high speed camera and the methylene blue spectrophotometer are used for measuring the cavitation generating position and the cavitation quantity, and the stress-strain gage is used for measuring the cavitation cleaning effect. According to the pipeline cavitation cleaning effect detecting system, by utilizing the high speed photography technology, generating and development of cavitation of a cavitation cleaner can be effectively observed, and regional detecting of the cavitation effect can be achieved. By adopting the stress-strain test method, the strain value of a tube wall when a cavitation bubble is generated and collapsed, the cavitation effect is obtained through transformation of strain and stress, and quantitative analysis is conducted on the cavitation effect; and by adopting the methylene blue spectrophotometer measurement method, the amount of hydroxyl radicals is detected through change of absorbance before and after methylene blue is oxidized, so that the cavitation strength is represented.

Description

technical field [0001] The invention relates to pipeline cavitation cleaning technology, in particular to a detection system for pipeline cavitation cleaning effect. Background technique [0002] As a new type of physical descaling technology, cavitation water jet cleaning effectively utilizes the strong impact force generated by the rupture of cavitation bubbles in the cavitation water jet stream to separate the scale layer from the inner wall of the pipeline to achieve the effect of cleaning and descaling. There are many and complex factors affecting the cavitation effect, and it is very difficult to measure the cavitation effect. How to detect the cavitation effect has always been the focus of research at home and abroad. [0003] At present, most of the research on cavitation cleaning is focused on the study of single cavitation effect, such as acoustic method, naked eye observation method and optical method, it is difficult to study the cavitation effect caused by the c...

AI Technical Summary

Problems solved by technology

[0004] 1. The acoustic cavitation detection method is not perfect, the mechanism link between cavitation noise and cavitation flow has not been fully established, and it is difficult to meet quantitative and regional detection

[0005] 2. The naked eye observation method can only see the cavitation area, and cannot detect the impact of the cavitation phenomenon, and cannot quantify the cavitation phenomenon

[0006] 3. Although the optical method of cavitation detection can capture the development state of cavitation on the model test bench, it is not suitable for real-machine cavitation detection in complex operating environments, and the quantification is difficult to meet and the stability is poor

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