The combustible gas detector is a combustible gas detector that responds to the concentration of single or multiple combustible gases. There are two types of combustible gas detectors: catalytic type and infrared optical type. Catalytic combustible gas detector uses the resistance change of refractory platinum wire heated to determine the concentration of combustible gas. When the combustible gas enters the detector, it causes an oxidation reaction (flameless combustion) on the surface of the platinum wire. The heat generated by it causes the temperature of the platinum wire to rise, and the resistivity of the platinum wire changes.
There are three main categories of combustible gas detectors:
Online combustible gas detector: The online combustible gas detector is generally composed of an alarm and a combustible gas detector. Among them, the gas detection alarm is placed in the duty room, and the fixed combustible gas detector is mainly installed in the gas comparison Locations that are easy to leak. If the concentration exceeds the normal range, the alarm will automatically send out an alarm signal and activate equipment such as solenoid valves and exhaust fans to automatically eliminate hidden dangers.
Portable combustible gas detector: This type of combustible gas detector generally uses natural diffusion for gas concentration detection, and the catalytic combustion sensor contained in the detector also has high sensitivity. In addition, the combustible gas detector with good quality and low price also uses embedded micro-control technology, which makes the detector has the advantages of simple operation and complete functions, and greatly improves the efficiency and accuracy of gas detection.
Pump suction combustible gas detector: This type of combustible gas detector mainly uses a built-in suction pump, which has the characteristics of quickly detecting the concentration of combustible gas in the working environment. In addition, the pump-suction combustible gas detector not only uses high-quality catalytic combustion sensors, but also has a very clear large LCD display and precise sound and light alarm prompts, which can ensure that the technicians successfully detect the gas in a more unfavorable working environment, and at the same time ensure Personal safety.
