The gas meter shows that the check voltage is low and there is no ventilation.

Check whether these three batteries are normal, and some new batteries have lost power. After removing the battery, wait until there is no display screen before installing it. If there is no problem with the above, call someone from the gas company to repair and replace it.

Natural gas is a gaseous fossil fuel mainly composed of methane. It mainly exists in oil fields and natural gas fields, and a small amount comes from coal seams. Natural gas, like crude oil, is also buried in underground closed geological structures, some of which are stored in the same horizon as crude oil, and some exist alone.

For natural gas stored in the same horizon as crude oil, it will be mined together with crude oil. Natural gas is mainly used as fuel to make carbon black, chemicals and liquefied petroleum gas. Propane and butane produced from natural gas are important raw materials for modern industry. Natural gas is mainly composed of gaseous low molecular hydrocarbons and non-hydrocarbon gases.

With the accelerated implementation of natural gas price reform, the approaching of natural gas development expectation in the 13th Five-Year Plan, the recent cooling weather and the sharp increase of natural gas consumption, the development of natural gas will usher in a historic opportunity? .

According to the state of natural gas, it can be divided into three types: structural natural gas, water-soluble natural gas and coal mine natural gas. Structured natural gas can be divided into wet natural gas produced from crude oil and dry natural gas without liquid components.

The combustion calorific value of natural gas per cubic meter is 8000 to 8500 kcal. The combustion heat value per kilogram of liquefied gas is 1 1000 kcal. The specific gravity of gaseous liquefied gas is 2.5 kg/m3.

The combustion calorific value of liquefied gas per cubic meter is 25200 kcal. Each bottle of liquefied gas weighs 14.5 kg, and the total calorific value is 159500 kcal, which is equivalent to the calorific value of 20 cubic meters of natural gas.