Fluid filtering machine with filtering membrane controlled by PLC

摘要

A fluid filtering machine is provided with a filtering membrane made up of filtering substance that collects on a filtering core in a filtering tank and is controlled by a programmable logic controller. The machine includes a raw water tank, a purified water tank, a primary debris strainer, a working pump, a filtering substance supplying tank, the filtering tank, a concentrated debris tank and the programmable logic controller. Wherein the combination of the above mentioned components with input from pressure switches, each of a number of solenoids and an actuating rod actuated by a motor can be accurately and precisely controlled by the controller to control flow through set procedures of machine operation. The procedures include filtering, retro- cleaning, formation of the filtering membrane and supplying of the filtering substance. These procedures can be properly set to operate to operate at preset times and for preset durations, also the filtering substance can be homogeneously deployed and an accurate physical filtering effect can be therefore attained.