What is a chemical combustible gas alarm?
Chemical combustible gas alarm is a device used to monitor the concentration of combustible gas in the chemical industry. It can detect the concentration of combustible gas in the environment in time and trigger an alarm when it exceeds a set threshold to ensure workplace safety.
Working principle
Chemical combustible gas alarms usually use technologies such as semiconductor sensors, infrared sensors or electrochemical sensors to detect the concentration of combustible gases. The sensor chemically reacts with the combustible gas, absorbs light or changes the electrical signal to generate a corresponding electrical signal. The sensor measures and analyzes the strength of this electrical signal and determines the concentration of combustible gases in the environment according to the measurement results. When the concentration of combustible gas exceeds a set threshold, the alarm will issue an alarm signal such as sound, light or vibration.
Application field
Chemical combustible gas alarms are widely used in the following fields:
Petrochemical: used in petrochemical plants, refineries, chemical tank farms, and other places to monitor the leakage and accumulation of combustible gases and prevent fires and explosions.
Chemical laboratory: used to monitor the concentration of combustible gases in the laboratory to ensure the safety of experimental operations and prevent potential fire risks.
Paint and coating industry: used to monitor the concentration of combustible gases in spray booths, painting workshops, etc., to prevent the risk of fire and explosion during the painting process.
Natural gas industry: used for monitoring combustible gases during natural gas production, transportation, and storage to ensure the safe operation of natural gas facilities.
Gas industry: It is used for the detection of combustible gases during the production, distribution and use of gas to ensure the safety of gas supply and prevent the risk of fire caused by gas leakage.
General technical parameters
The following are examples of some technical parameters in a sulfur fluoride gas alarm:
| Technical parameters | describe |
|---|---|
| Detection range | Minimum and maximum detection ranges for SF6 gas concentrations in indoor air |
| resolution | The number of decimal places in the measurement result |
| response time | Time from when the SF6 concentration exceeds the threshold to when the alarm is triggered |
| sensitivity | Sensitivity to changes in SF6 concentration |
| Operating temperature range | The temperature range in which the device can operate normally |