As we all know, natural gas is a flammable and explosive gas. As an important clean energy, it has been widely used in many industries.
Because of the flammability and explosive nature of natural gas, we must pay attention to the concentration of natural gas leakage when we use natural gas, and prevent the occurrence of natural gas explosion accidents. In order to prevent the occurrence of natural gas leakage and explosion, we need to install the natural gas alarm to detect the gas concentration. The main function of the natural gas alarm is to detect the gas leakage concentration. Once the natural gas leakage reaches a certain concentration, the natural gas alarm will automatically alarm the workers. Take corresponding measures in time to avoid major accidents. The alarm value of natural gas alarm is generally divided into first and two levels. Today, we are mainly going to explain why the natural gas alarm is required to be equipped with a two level alarm. What are the advantages?
The first level alarm device can realize electromagnetic valve or exhaust fan when the device is in alarm. The two stage alarm device can realize double tube monitoring, that is, when the natural gas alarm is detected, the natural gas concentration exceeds the first order alarm value, which indicates that there is natural gas leakage, but the natural gas leakage is not much, so the selection of the starting exhaust fan at the first level alarm can reduce the concentration of the sky gas and ensure the environmental safety. When the measured natural gas concentration reaches two alarm level, there is a large number of natural gas leaks. At this time, the use of exhaust fans to dispel the problem has not been solved, so when the two alarm, choose to start the solenoid valve, directly cut off the gas pipeline. After soaping water to the natural gas pipeline afterwards, the place where bubbles are generated is the leakage point of natural gas. After finding out the leakage, the remedial measures were taken.
