Automatic control system for diaphragm pumps

Details Automatic control system for diaphragm pumps Automatic control system for diaphragm pumps

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 49/00 (2006.01) D21F 1/08 (2006.01) F04B 43/073 (2006.01)

Patent

CA 2089352

ABSTRACT OF THE DISCLOSURE A method and apparatus for controlling the discharge time of a fluid activated diaphragm pump. The control system regulates the discharge time, by measuring the discharge time and comparing the measured time with a predetermined desired discharge time. The control system includes, inter alia, a programmable logic controller, an upper and lower proximity switch, a target, a rod to hold the target, a pilot controlled pressure regulator, a set of digitally controlled solenoids which control a pilot valve, a solenoid, and a pressure switch. The rod is secured to the diaphragm of the diaphragm pump, and the proximity switches respond to the movement of the rod to detect the movement, or stroke, of the diaphragm. The pressure supplied to the diaphragm pump is automatically, and continuously, adjusted to maintain a desired discharge time.

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