Today, the professional manufacturer of ceramic ignition needles introduces automatic control devices to you. Including a flameout protection device that can automatically shut off the gas source when the flame is accidentally turned off, and an overheat protection device that can automatically shut down the gas source in an overheated state, a flashback protection device and other safety devices. How the flameout protection device works.

When using, first press the knob (this button is connected with the plug valve stem and the igniter switch), at this time, with the valve stem of the plug valve moving down, push the valve core needle to open the solenoid valve under the action of the mechanical device, and at When it is rotated 90 degrees counterclockwise, the main air hole of the cock is connected to the intake line of the valve body, and the ventilation air line supplies air to the burner through the solenoid valve and the cock valve, and the igniter circuit is turned on, generating high-voltage discharge and igniting. The burner, the thermocouple, is heated by the flame, and the thermoelectric potential generated keeps the solenoid valve open and the ignition ends. After the gas stove enters the working state, the hand leaves the knob, so that the valve stem is reset under the action of the spring, the igniter circuit is disconnected, and the high-voltage discharge stops.


 


When an accidental flameout occurs, the thermocouple gradually cools down, and the solenoid valve automatically closes after the thermoelectric potential disappears. There is also a photoelectric flameout protection device that uses an integrated control circuit and a photoelectric detection device to complete the flameout protection work. It is transmitted to the integrated control circuit, converted into a power-on signal, and a working current is given to the solenoid valve to keep it open; when an accidental flameout occurs, the photoelectric signal disappears, and the integrated control circuit cannot receive the signal, it will cut off the power supply and automatically shut down The electromagnetic valve.

The tempering protection device and the overheating protection device also use thermal elements and integrated circuits to form a control circuit. In the event of a fault, the solenoid valve is automatically closed. The safety protection device ensures that the gas stove can automatically close the gas valve and cut off the gas source in case of accidental flameout during use, so as to prevent accidents.