This paper presents the application issue of PLC on electricalcontrol system of cleaning equipment for the valve-board.

Cleaning Machine with Pressure Block without Alternate Stress for Petrochemical Pipe;

Decontamination Principles of Cleaning Machine with Static Electricity for Bottle Cap Cleaning;

Its composition and cleaning mechanism are probedinitially by infrared spectrum.

The status in the world, cleaning mechanism and the aspects of applications the tehnology are described.

The plasma theory,plasma cleaning mechanisms and applications for plasma cleaning system are described.

The study and discussion for washing machine of hydraulic parts;

Based on the analysis of the control of bearing box washing machine,the control system of washing machine was designed.

The application of PLC of the series of FX in controlling the engine washing machine is introduced in this paper .

This article explains the purpose and meaning for cleaning urban construction,especially the external surface of the high rise buildings,analyzes the current cleaning methods and introduces an effective cleaning machine and a calculation method.