What is the function of the gas water heater solenoid valve? How does the gas water heater solenoid valve work?

Gas water heater electromagnetic What is the function of the valve

1. The solenoid valve mainly plays the role of water-gas linkage. According to the normal startup procedure, first turn on the water, and the micro switch will be activated when the book passes, so that the power can be turned on;then ignite, about 3 seconds, The solenoid valve begins to close, so that ventilation and combustion can occur. To put it simply, the water is supplied first, then the electricity is supplied, and finally the ventilation is supplied. If there is no solenoid valve, the air will be ventilated directly when the water is supplied. In this way, if the ignition is delayed, the gas will fill the entire combustion chamber, and an explosion will occur as soon as it is ignited, with very serious consequences.

2. The water heater solenoid valve plays a dual protection role. When cold water enters the water heater, the water film is affected by the water pressure, which turns on the power of the whole machine and pushes the spring top cover to the left. This spring top cover is another switch that controls the air source. Therefore, when the water film produces scale and slag due to long-term use, it is likely that it will not be able to return to its original position, and the gas switch will not be turned off. If there is no solenoid valve at this time, then the switch will always be open, and gas will leak, thus posing a safety hazard.

Working principle of gas water heater solenoid valve

When cold water enters the water heater, it will pass through the water-gas linkage valve body. Under a certain pressure of the water flow, the water-gas linkage valve and the micro switch can be pushed to turn on the power, and at the same time, the pulse controller will be started. At this time, open the gas solenoid valve and the burner of the gas water heater is ignited. After the burner is ignited, the flame detection element will detect the flame signal and then transmit it to the pulse controller. The pulse controller will open the solenoid valve by maintaining the current and maintain normal combustion of the burner.

If the burner does not ignite successfully, the pulse controller will not receive the flame signal, so it will not be able to maintain the current flow to ensure the normal opening of the solenoid valve.

When the water inlet valve is opened, push the reset switch to turn on the power, and the power drives the solenoid valve to open the gas channel. That is to say, the gas delivery circuit will be opened only when the water inlet switch is turned on. After opening the hot water faucet, the pressure in the hot water pipe is low, triggering the action of the water-gas linkage valve and opening the solenoid valve of the water heater. At the same time, the pulse ignition equipment runs for more than ten seconds, and the electric spark ignites the gas. When the hot water faucet is closed, the pressure in the hot water pipe increases, the linkage valve closes the air valve, and the water heater stops running.

The basic water heater follows the normal start-up procedure: first pass the water, then activate the micro switch, energize the whole machine, and then ignite. After ignition for 1-3 seconds, Solenoid Valve< /span>Suction, ventilation, combustion. If the solenoid valve of the water heater is lost, ventilation will occur when water is supplied. If ignition is delayed, deflagration will occur when gas fills the combustion chamber. What is mentioned here is the effect of water vapor linkage of the water heater solenoid valve.

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