We have an incorrect understanding of the independent gas alarm

    Many people think that as long as there is leakage of oil and gas is gas alarm, independent sensors should send out alarm signal, if you don´t alarm might fail, and oil and gas that is wrong. Gas alarm detection object for combustible gas in the air, detection range of 0-100%, but only the combustible gas concentration reaches the set value, the controller to send out alarm signal, and not have oil and gas alarm.

The determination of independent gas alarm detection points is determined according to the related aspects such as process equipment, equipment facilities and combustible gas concentration. In the process of reconstruction and expansion, without considering the scope of the detector´s function and detection, the location of the detection will be changed randomly, which will inevitably cause the detection location to be repeated or not detected. Moreover, in the process of unpacking, the detector´s sensitivity may be reduced due to the vibration. Gas alarm sometimes being installed in the open air, such as tank farm, open, open air pump gas alarm valve group, there are also installed in the indoor 30 ~ 60 cm high from ground, such as rain or wash ground, water is very easy to enter the detector, detector.

The gas alarm has an alarm value, which is generally 25% LEL (LEL is the lower limit of explosion). When the combustible gas in the air reaches the set value, the alarm will alarm the user and remind the user of the gas leak. If the solenoid valve is connected to the solenoid valve, the valve will be automatically truncated when it receives the signal from the alarm, thereby preventing the gas from continuing to leak. Now gas alarm is mainly divided into two kinds: civilian independent combustible gas alarm and commercial and industrial centralized gas alarm.