What should the combustible gas detector pay attention to when detecting combustible gas?
At present, combustible gas detectors are one of the essential safety devices for industrial applications. The working principle of the combustible gas detector is generally to detect whether the concentration of combustible gas in the air reaches a certain threat value. When the combustible gas in the air reaches a certain concentration, the combustible gas detector will automatically sound and light alarm to remind people to take timely action. Corresponding measures are taken to avoid the occurrence of major accidents, thereby ensuring the safe life of enterprises and the safety of people's lives. So do you know what should be paid attention to when combustible gas detectors detect combustible gases?
Combustible gas detectors should pay attention to the following aspects when detecting combustible gases:
1. Find out the leakage point of the device
First of all, it is necessary to find out what are the leakage points of the device, analyze their leakage direction, pressure and other factors, and draw the distribution map of the probe position at the same time. According to the severity of the leakage, it is divided into three grades: I, II, and III. At the same time, according to the density of the leaked gas, combined with the air flow trend, a three-dimensional flow trend map of the leak is synthesized, and an initial setting point scheme is made at the downstream position of the flow. Then, according to specific factors such as the wind direction and airflow direction of the place, judge the leakage direction of combustible gas in case of a large amount of leakage.
2. Electromagnetic interference should be avoided when using combustible gas detectors
There are three main paths for the electromagnetic environment to affect combustible gas detectors: one is the interference of electromagnetic waves in the workplace. The second is the narrow pulse group on the power supply and other input and output lines in the fixed gas detector. The third is the static electricity generated by the human body.
3. Choose an explosion-proof combustible gas detector
Because explosion accidents may occur in many places, we should choose an explosion-proof combustible gas detector when choosing a combustible gas detector. The explosion-proof level should not be lower than the corresponding level in the current regulations.
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4. Avoid damage to the probe
During the installation of the combustible gas detector, care must be taken not to cause damage to the probe of the alarm that is in contact with other sensors, because the probe is a relatively critical original in the alarm. Once damaged, it may be damaged for the alarm. It is a more serious injury, which affects the correct alarm of the alarm.
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In summary, there are some aspects that should be paid attention to when combustible gas detectors detect combustible gases. Of course, in order to ensure the normal use of the combustible gas detector, its installation is also a very important aspect. Therefore, we need to fix and install each combustible gas detector at the installation point with the fixed bracket provided by the manufacturer according to the manufacturer's instructions, and at the same time connect the power line and signal line of the combustible gas detector according to the instructions. The first step must be connected in strict accordance with the manufacturer's instructions, otherwise, if the connection is wrong, it will cause damage to the combustible gas detector during the power-on test.
