Liquid level control system for separation tank

Details Liquid level control system for separation tank Liquid level control system for separation tank

1976-03-22

1978-08-29

Granger, Theodore A.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Discharge of treated material

210121, 210540, B01D 3338

Patent

active

041102150

ABSTRACT:
An automatic liquid level control system for separation tanks which are used to clean waste water. The automatic level control system includes an external stilling well mounted on the side of the separation tank and having a liquid level sensing means which produces a pneumatic signal related to the liquid level. A pneumatic operator receives the pneumatic signal and maintains the proper position of the weir gate in the weir or outfall box of the separation tank, so that the amount of effluent water flowing from the tank is appropriately regulated to maintain the desired liquid level in the tank.

REFERENCES:
patent: 1500669 (1924-07-01), Cunningham
patent: 2723760 (1955-11-01), Talbot
patent: 2789090 (1957-04-01), Guillerd et al.
patent: 3298529 (1967-01-01), Longnecker
patent: 3495712 (1970-02-01), Schreiber
patent: 3628660 (1971-12-01), In't Veld
patent: 3733263 (1973-05-01), Mandt
patent: 3784010 (1974-01-01), Barra
patent: 3799344 (1974-03-01), Nishizawa
patent: 3971719 (1976-07-01), Peters
patent: 3979290 (1976-09-01), Loffler

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