초록 ▼

A filtering system used to filter contaminated fluid. The filtering system (10) includes a supply pump (12); a filter tank (14) having a plurality of removable filter cassettes (16) disposed therein, each filter cassette housing in proper orientation a filter pad (164); a suction pump (18); a level

A filtering system used to filter contaminated fluid. The filtering system (10) includes a supply pump (12); a filter tank (14) having a plurality of removable filter cassettes (16) disposed therein, each filter cassette housing in proper orientation a filter pad (164); a suction pump (18); a level control mechanism (148) maintaining a substantially uniform level of contaminated fluid within the filter tank; and a control panel (20) housing other process control components. Operation of the filtering system includes a backflush cycle and a relaxation cycle to extend the loading life of the filter pads. Also included is a preventive measure designed to eliminate fluid shear that may result as the filter pads approach the end of their loading life.

대표청구항 ▼

A filtering system for filtering a contaminated fluid, the filtering system comprising: a filter tank; a variable-speed first pump for delivering an inlet flow of contaminated fluid into said filter tank; a plurality of filter cassettes removably supported within said filter tank, each of said filte

A filtering system for filtering a contaminated fluid, the filtering system comprising: a filter tank; a variable-speed first pump for delivering an inlet flow of contaminated fluid into said filter tank; a plurality of filter cassettes removably supported within said filter tank, each of said filter cassettes housing a filter pad; a variable-speed second pump in cooperative engagement with said plurality of removably filter cassettes, said second pump providing a vacuum to said filter cassettes to draw the contaminated fluid through said filter pads and further providing a return flow of filtered fluid; and a level control mechanism interactively coupled to said first pump capable of adjusting the flow rate of said first pump to maintain a substantially uniform level of fluid in said filter tank.