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(1) temporary suspension of trains and extra units;
Self-cleaning filter is a kind of using mesh directly to intercept the impurities in the water, purify water, suspended solids, particulate matter, reduce the turbidity, purify water quality, reduce system dirt, bacteria and algae, corrosion, etc, to purify the water quality and protect the system precision equipment of other equipment to work normally.
Through the filter screen, the process of the process is carried out through the outlet, and the particles in the water are trapped inside the filter. So continuously circulation, more and more particles trapped down, filtration speed slower and slower, and imports of sewage is still continue to enter, filter hole will be more and more small, thus produce pressure difference between inlet and outlet, when poor magnanimous to set data, differential pressure transmitter will be routed to the controller, control system startup drive motor through the mechanical drive shaft rotation, open the outlet at the same time, by the discharge outlet, when the screen is clean, differential pressure drop to the minimum, the system returns to the initial filter, normal operation of system
Reverse flushing can be done automatically: the backwash is done by hydraulic valve opening and hydraulic cylinder pistons, which are controlled by the backwash controller. The anti-flushing controller can accurately control the hydraulic valve and hydraulic cylinder according to the differential pressure value from the filter inlet and outlet, and the power of the controller comes from the pressure of the line itself.
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