In view of the features of long lag time,big inertia and nonlinearity of a special oil filtration system used in a certain fossil-fired power plant,the idea that combines fuzzy control with conventional PID control has been proposed and a fuzzy PID controller has been designed.

Realization of filter system based on large umber of text information;

By using suitable material and structure of the filter core and improving the filter system, the polluted degree of the hydraulic oil is lower than 9NAS.

In order to purify dirty water returned from refining and casting process and to realize circulating utilization of water, VD dirty loop filtering system was established for treating waste water.

As the major economical and technical indexes in WPA production,sulfuric acid consumption is reduced alone with the decrease in the loss of the water soluble P2O5 in the WPA filtering system.

The causes and countermeasures of scale plugging in WPA filtration system;

This paper describes the working principle of acid filtration system in the stainless steel pickling.

An energy and water saving and efficient new water filter system equipment in production process of spunlaced nonwovens