What if the gas can't be turned on after the gas alarm goes off? ,

The reason why the gas can't be turned on after the gas alarm goes off is that after the alarm, the red safety valve next to the gas meter will be sucked in to cut off the gas. Rotate or press reset, and the red button pops up to resume gas supply.

flammable gas

It is the general name of gas fuel, which can be used for urban residents and industrial enterprises to burn and release heat. There are many kinds of gas, mainly natural gas, artificial gas, liquefied petroleum gas and biogas.

According to the source of gas, gas can usually be divided into natural gas, artificial gas, liquefied petroleum gas and biomass gas. Compared with developed countries, China's gas supply industry started late. At present, the main distribution gases are coal gas, liquefied petroleum gas and natural gas. Since 1990s, China's natural gas supply has greatly increased.