Natural gas, a multi - component mixed gaseous fossil fuel, is mainly composed of alkanes, with the vast majority of methane, and a small amount of ethane, propane and butane.
It mainly exists in oil fields, gas fields, coal seams and shale formations. After the combustion of natural gas, no waste residue and waste water are produced. Compared with coal and oil, the natural gas has the advantages of safe use, high calorific value and cleanliness. Natural gas can be divided into two types: associated gas and non associated gas.
When the gas is leaked, when the air concentration is above 15%, the human body can cause the damage of the nervous system, which can cause respiratory paralysis, coma and even death when it is serious.
Natural gas is also one of the most common flammable and explosive chemicals. Its steam reaches 3.6% to 6.5% in the air and explode in open fire.
In order to avoid such an accident, we need to detect the concentration of LPG in the air and prevent it in advance.
LPG gas alarm is a device to prevent leakage, alarm and alarm of harmful, inflammable and explosive gases during production and use. In actual use, the alarm set the lower limit of the explosion (such as 20%LEL) as the alarm point, once the leakage occurs, the gas concentration reaches the lower limit of the explosion (alarm point) alarm will immediately alarm, and disconnect the power supply, at the same time open the ventilation system, so that the personnel can be disposed of danger in a certain time. As a powerful weapon to prevent gas leakage, the alarm appears to have failed to attract people's attention. This can be compared with fire extinguishers on safety protection. The natural gas alarm is more accurate, sensitive and fast response in the detection of liquefied petroleum gas. Natural gas alarm is widely used in liquefied gas station, automobile gas station, boiler room and other industrial places. It can effectively prevent poisoning accidents, explosions, and fire, so as to ensure the safety of life and property.
