Method For Controlling Gas-Fired Appliance

摘要

A method for controlling a gas-fired appliance is presented, wherein the gas-fired appliance includes a combustor, at least one flow-regulating valve, and a solenoid valve which are all interconnected, and adaptive to low or no power supplied to the gas-fired appliances, including the steps of: using the solenoid valve to block fuel gas, determining whether the power returns to normal, and if not, maintaining the solenoid valve block, and if so, closing the flow-regulating valve to thereby block the fuel gas such that the fuel gas flow is paused when the solenoid valve is open during a next ignition try.

主权项

1. A method for controlling a gas-fired appliance, wherein the gas-fired appliance includes a combustor, at least one flow-regulating valve and a solenoid valve, wherein the at least one flow-regulating valve and the solenoid valve are installed on a pipeline which communicates with the combustor and serves to introduce fuel gas; wherein each of the at least one flow-regulating valve has a valve body, a valve plug, and a motor, wherein the valve body has a valve opening for the fuel gas to pass therethrough, and the valve plug is drivable by the motor to change a degree of openness of the valve opening; the solenoid valve is controllable to allow or disallow the fuel gas to pass therethrough; and the gas-fired appliance further includes a power source for powering the motor;
wherein the method is activated when the power source stops supplying power, by adaptively performing the steps comprising of: using the solenoid valve to block the fuel gas from passing therethrough; and when the power source starts to supply the power again, controlling the motor to make the valve plug close the valve opening.