Working principle of gas stove solenoid valve, how to repair gas stove solenoid valve

The working principle of the gas stove solenoid valve is that there is a closed cavity in the gas stove solenoid valve, and there are through holes at different positions. Each through hole is connected to a different oil pipe, and there is a piston in the middle of the cavity and two electromagnets on both sides. , which side of the magnet coil will be attracted to which side passes through the valve body. By controlling the movement of the valve body to open or close different oil drain and exhaust holes, while the oil inlet hole is normally open, the hydraulic oil will enter different oil drain pipes. , and then the piston of the oil cylinder is pushed by the pressure of the oil, and the piston drives the piston rod, which drives the mechanical device. When the thermocouple in the gas stove solenoid valve is heated, a thermoelectric potential will be generated, which can make the solenoid valve work. The working principle of the gas stove: When the knob is pressed and a small fire is ignited, the thermocouple is heated by the flame and generates a thermoelectric potential. The thermoelectric potential is introduced into the electromagnetic coil through the wire, and a magnetic field is generated to attract the solenoid valve, open the gas valve, and open the combustion path to maintain normal combustion. Once there is strong wind or soup water overflows, the flame is extinguished, and the thermoelectric potential of the thermocouple quickly drops to Zero, the coil loses power and the solenoid valve fails. It quickly resets under the action of the spring. The valve closes the gas path and terminates the gas supply to ensure safety. Gas stove thermocouple protection device, pay attention to keep the distance between the thermocouple and the fire cover. Generally speaking, the height of the gas stove thermocouple should be basically the same as the height of the fire cover, and the allowable error is 1±0.5mm. The distance between the gas stove thermocouple and the fire cover should not be too far. Generally, the best distance is 4±0.5mm. If the installation position is too low, the thermocouple of the gas stove will not be heated enough and the thermal potential generated will not be enough to cause the solenoid valve to close. If the installation position is too high, the flame contact will be too large and the thermocouple will be easily burned out. In the same way, if it is too far away, the thermocouple will be easily burned out. The thermal potential will be insufficient and the solenoid valve will not close. How to repair the gas stove solenoid valve 1. Ask professional maintenance personnel to repair or replace the valve body with a new one. Friends with strong hands-on skills can update a valve body by themselves. After replacing the solenoid valve, use concentrated soapy water to check for air leaks. 2. Replace the battery with a new one. 3. Replace the thermocouple. 4. There is foreign matter blocking it, causing it to fail to work. As long as you use a thin wire to clear it, you can eliminate the abnormality. 5. When making stews or soups, some people like to turn on the flame very low, which can easily cause air leakage or incomplete combustion. Therefore, when using a gas stove, the fire cannot be turned on too low. There are many reasons: 1. You can judge whether the solenoid valve is not working by igniting the gas stove, observing the size of the flame, and adjusting the flame. 2. If the gas stove ignites quickly and adjusts the flame size very accurately, it means that the solenoid valve of the gas stove is intact and there is something wrong with the solenoid valve of the gas stove. 3. The automatic flameout function of the solenoid valve of the gas stove fails, and the wiring gasket in the valve body cannot be energized, causing the solenoid valve of the gas stove to not work. 4. Insufficient battery power will lead to insufficient pulse ignition power. The magnetic pole will not attract, and the gas will not be able to enter. 5. The galvanic couple is overoxidized or the feedback cable is connected falsely. 6. The gas pipeline may be blocked. When replacing a new stove, you may consider replacing it with an infrared stove. The above is the working principle of the solenoid valve of the gas stove, and the introduction of how to repair the solenoid valve of the gas stove. If you want to know more related information, please log in to www.diancifa.cc to view it.