Selection and application of gas detector kopen
Gas detector kopen is widely used in petrochemical, environmental protection, gasoline, coal mine and other industries. According to various safety production occasions and testing requirements, it is very important for everyone who is engaged in safety and health work to choose a suitable gas detector kopen.
Determine the type and concentration range of the gas to be measured:
Each production sector encounters different types of gases. All possible situations should be considered when choosing a gas detector kopen.
For example, in the coal mining environment, methane and less toxic alkanes are undoubtedly the most suitable choices for the selection of combustible gas detectors. This is not only because the detection principle of the gas detector is simple and widely used, but also has the characteristics of convenient maintenance and calibration.
If there are toxic gases such as carbon monoxide, hydrogen sulfide, ammonia, oxygen, hydrogen, phosphine, etc., it is best to choose a single gas detector that simultaneously detects CO, H2S, NH3, O2, etc. to ensure worker safety.
If there are many toxic and harmful gases in organic matter, considering the low concentration of human poisoning, such as aromatic hydrocarbons, halogenated hydrocarbons, ammonia (amine), ether, alcohol, fat, etc., a PID photoionization detector should be used instead of an LEL gas detector. Disposal of the device may result in personal injury or death.
If the gas types cover the above-mentioned gases, choosing a multi-purpose gas detector may get twice the result with half the effort. Fixed Gas Detector
Choose different types of gas detector kopen according to the industrial environment:
1.Fixed gas detector
This gas detector is widely used in industrial plants and production processes. The fixed detector is generally divided into two parts: the detection probe composed of sensors and transmission parts, installed at the detection site; the secondary instrument composed of circuit, power supply and display alarm device is installed in a safe place for monitoring.
Fixed gas detectors are more suitable for processes that require continuous, long-term, and stable detection. Fixed detectors are also selected according to the type and concentration of the gas on site. It should also be noted that fixed gas detectors should be installed where specific gases are most likely to leak.
2.Portable gas detector
Because the portable gas detector is easy to operate and small in size, it can be carried to different production sites. Hand-held gas detectors are usually powered by alkaline batteries or lithium-ion batteries, which can be used continuously for a long time. Therefore, this type of equipment is more and more widely used in various factories and health departments. Portable gas detectors have two gas sampling methods, diffusion and pump.
If it is an open place, such as an open workshop, a portable diffusion gas detector can be used as an alarm, which can continuously, real-time and accurately display the concentration of toxic and harmful gases on site. This type of gas meter is also equipped with a vibrating alarm to avoid inaudible alarms in noisy environments and provide specific guidance for the health and safety of workers.
If the portable single gas detector with pump enters a confined space, such as reaction tanks, storage tanks or containers, sewers or other underground pipelines, underground facilities, closed agricultural granaries, railway tankers, marine cargo holds, tunnels, etc., multi-gas must be selected The detector has a built-in sampling pump, because the gas distribution and gas types in different parts of the confined space are very different.
For example, the proportion of flammable and explosive gases is generally relatively light and mostly distributed in the upper part of a confined space. Carbon monoxide, similar in weight to air, is generally distributed in the middle of a confined space. In the lower part of the confined space there are heavier gases such as hydrogen sulfide.At the same time, oxygen concentration is also one of the types that must be detected. In addition, if volatilization and leakage of organic toxic gases are considered, a detector capable of detecting organic gases is also required.
Gas detectors are important
Therefore, in a complete confined space, the gas detector should be equipped with a built-in pumping function to achieve non-contact, sub-site detection; multi-gas detectors also need to detect harmful gases distributed in different spaces, including inorganic gases and organic gases ;Oxygen detector is required to prevent hypoxia or enrichment. Only in this way can the absolute safety of personnel entering the confined space be guaranteed. In addition, after entering a confined space, the gas composition should be measured continuously. Avoid changes in the concentration of volatile organic compounds or other toxic and harmful gases caused by personnel entry, sudden leakage, and temperature changes.
Gas detector if used for emergency, leak detection or patrol inspection. Should choose fast reaction speed, high sensitivity, high resolution. Pay attention to pump gas detectors that are easy to locate leaks.