What problems might the combustible gas detector encounter when using it? How to solve?What problems might the combustible gas detector encounter when using it? How to solve?

What problems might the combustible gas detector encounter when using it? How to solve?What problems might the combustible gas detector encounter when using it? How to solve?

The combustible gas detector is mainly used in the petrochemical industry where combustible gas exists, such as gas, petroleum, chemical industry, etc. It can be used to detect whether there is dangerous leakage in indoor and outdoor places, and it is also an important instrument to ensure personal safety and production safety. If the specific place where the flammable gas occurs, the detector will convert the gas signal into a voltage and current signal to transmit it to the alarm instrument. Then the instrument will automatically display the concentration value of the lower explosive limit of flammable gas. When the personnel hear the sound and light alarm signal prompt, they will take some safety measures to prevent the occurrence of explosion accidents.

There are still many problems in the selection of various types of gas detectors. The specific problems mainly include:

1. The detection of combustible gas is more important than the detection of toxic gas;

2. The detection of gas that may cause acute poisoning is more important than the detection of gas that may cause chronic poisoning. Due to the blood of the explosion accident caused by the leakage of many combustible gas, people attach great importance to the detection of combustible gas. It can be said that most of the dangerous gas detectors in any petrochemical and chemical plant are LEL detectors. However, it is far from enough to only have LEL detectors to truly protect the safety and health of workers. It is undeniable that most volatile dangerous gases are combustible gases, but the catalytic combustion type combustible gas detector (LEL) is not the best choice for all combustible gas detection. It is specially designed for the detection of methane, and the detection performance of other substances is relatively poor. Therefore, the lower limit concentrations of combustible gases other than methane that they can detect are much higher than their allowable concentrations.

When using the flammable gas detector correctly, we need to make careful consideration for the specific application.

1. According to the specific conditions such as the airflow direction and wind direction of the place, the detailed leakage method of the combustible gas in the event of leakage is judged.

2. Carefully study the specific form of the leakage state of the leakage point, and then make different budgets and treatment methods based on different situations.

3. According to the density of the leaking gas, find out the flow trend of the air so as to formulate a three-dimensional flow trend chart of the leak to make a reliable plan.

4. Under unfavorable ventilation conditions, if it is in an environment with open flammable gas diffusion, the possibility of causing the flammable gas content to approach or reach an explosive state is also high, and these are very important safety monitoring points.

5. Find out what kind of leakage points the detected device may have, and predict the severity of the leakage according to the leakage direction and pressure of the combustible gas. The gas sensor is the core component of the portable gas detector, and the gas sensor has special properties. Therefore, we have to surround the sensor most of the time during use.