Combining with PIG descaling practice of the pipeline of discharging ash in Xiahuayuan Power Factory, the work principle of PIG descaling apparatus and its descaling process were introduced.

PIG cleaning examples in water injection pipeline cleaning of Zhongyuan Oil Field

After research and practices, the PIG cleaning and a method integrated PIG cleaning withchemical cleaning were succesfully applied to the bittern water pipeline in the salt mineral factory.

Application of PIG cleaning technique in changing a crude oil pipeline to the one for natural gas;

Study on Cleaning Technics and Cleaning Equipment for Bearing;

Research and application of high efficiency cleaning equipment for oil pipe

Directing against the ash clogging problem occurred frequently in operation of the flue gas heat exchanger, the cleaning method and its effectiveness for flue gas heat exchanger of various kinds have been analysed, and situation of applying cleaning facility for flue gas heat exchangers in three power plants being described.

Based on the prepared experiments,the plastic greenhouse cleaning device structure was designed,the size was determinated,and the cleaning prototype was tested.

Besides,having a design of the structure and an analysis of the principle to the cleaning device,at the same time,analysing and calculating the rotary speed of shaft and the speed of lifting decalitre with band in the cleaning process,so as to ascertain the mian motion parameter and guarantee its stability and productivity.