System and Method for a Diaphragm Valve Controlled Through Measurement of Water Pressure and Solenoid Opening Time

摘要

A flush valve system is provided having an inlet and an outlet, and a main valve element adapted for transition between a closed position and an open position is disclosed. The flush valve further includes a control chamber in communication with the inlet, and a vent outlet in communication with the outlet. The system includes a solenoid for establishing communication between the control chamber and the vent outlet to establish a pressure differential across a portion of the main valve element. The system also includes a power supply for energizing the solenoid, a deployable actuator in communication with the power supply, and a microprocessor in electrical communication with the main valve element. The microprocessor is adapted to determine a valve opening time, calculate fluid pressure based on the valve opening time, and deliver a predetermined quantity of fluid through the valve based on fluid pressure.

主权项

1. A flush valve system, comprising:
a flush valve comprising:
a valve body comprising a fluid inlet and a fluid outlet, and a main valve element adapted for transition between a closed position, in which the fluid inlet and the fluid outlet are in fluid isolation, and an open position, in which the fluid inlet and the fluid outlet are in fluid communication;a vent system comprising a control chamber in fluid communication with the fluid inlet of the valve body, and a vent outlet in fluid communication with the fluid outlet of the valve body; andan electronically operated solenoid adapted to establish fluid communication between the control chamber and the vent outlet to establish a pressure differential across a portion of the main valve element; a power supply for energizing the solenoid; a deployable actuator in communication with the power supply; and a microprocessor in electrical communication with the flush valve adapted to:
determine a valve opening time TOpen, the valve opening time being the period of time from when power is supplied to the solenoid to when a piston opens the vent outlet,calculate a fluid pressure in the vent system based on Topen, andcause operation of the flush valve to deliver a predetermined quantity of fluid through the flush valve based on the fluid pressure within the vent system.