Which gas detectors are used in the automobile manufacturing process
Automobile is an important symbol of the development and civilization of modern society, and an indispensable tool for the modernization and speediness of people's production and life. With the increase of driving vehicles, the demand for production, processing, painting maintenance, etc. is also increasing, and ammonia, combustible gas, carbon monoxide, oxygen and other gases will be involved in production workshops, testing rooms, and special processes. In the production process of stamping, painting, drying and other processes, some flammable and toxic gases such as VOCs and hydrogen are often produced. Automobile manufacturing, engine production, testing, special processes, etc. will involve flammable and Explosive, poisonous and harmful gas. For the comprehensive consideration of safety production, it is necessary to detect the generated gas.
01. Volatile organic solvent gases (VOCs)
VOCs in the automobile manufacturing process mainly come from two places, one is the drying furnace and the other is the painting room. Most of the VOCs in the painting room are paint floating in the air after being atomized, while the VOCs in the drying furnace are more complicated. Taking the 3C1B process of water-based paint as an example, there are 3 drying ovens in total, namely electrophoresis drying oven, sealant drying oven, and surface coating drying oven. Dry the surface of the car body. During the drying process, a large number of unnamed substances are evaporated. These volatiles are collectively called VOCs, which are absolutely harmful to the human body. For VOCs gas detection in the automobile manufacturing process, the PID sensor PID-AR5 brought by the industrial mining network can be used. The photoion detector (PHOTO IONIZATION DETECTORS) PID-AR5 can measure VOCs (volatile Sexual organic matter) and some toxic gases, fully compatible to replace the American Baseline photoion gas sensor PID-200 (045-012). Many harmful substances raw materials contain VOCs. Due to its high sensitivity to VOCs, PID has become an early danger alarm and leakage of harmful substances. Monitoring and other indispensable practical tools.
02. Gasification of fuel leakage
Currently, the fuels used by automobiles are mainly gasoline and diesel. Alternative fuels for engines currently developed and used in China include natural gas, liquefied petroleum gas, methanol, ethanol, biomass fuel, hydrogen, and dimethyl ether. In the engine performance test experiment, fuel leakage is prone to occur, and it reacts with fuel to form toxic gas. For detection of natural gas, liquefied petroleum gas, ethanol, and hydrogen, natural gas sensor TGS2611, liquefied petroleum gas sensor TGS2610, ethanol sensor TGS2620, and hydrogen sensor TGS2616 can be used.
03. CO poisoning
In the design and production process of the automobile painting line, the main function of the drying furnace system is to bake the sprayed body at high temperature, so that the wet paint film attached to the surface of the car body can be cross-linked and cured under high temperature conditions to form a paint with excellent performance. membrane. The exhaust gas generated by the heat source of the drying furnace is often accompanied by carbon monoxide gas, which is likely to cause leakage hazards; at the same time, during vehicle and engine tests, the exhaust gas may also cause carbon monoxide poisoning accidents on site personnel and cause personal injury. Carbon monoxide sensor/CO sensor-CO-BF can be used for CO gas detection. The CO-BF carbon monoxide sensor is an electrochemical sensor. The electrochemical sensor has the advantages of high sensitivity, good selectivity, and low-concentration output linearity. Mainly used in petrochemical, environmental protection, coal mines, automobiles and other fields
04. Oxygen poisoning in a relatively confined space
In the environment of engine test area, trench, paint booth, drying furnace and natural gas or gasoline product storage tank, it is often a relatively closed space. When other gases replace the oxygen in the air in the space, it is easy to cause shortage of workers. Risk of oxygen toxicity. Oxygen concentration detection in limited space can use long-life electrochemical oxygen sensor KE series (KE-25F3/KE-25/KE-50), oxygen sensor KE series (KE-12/KE-25/KE-50) is a kind of original Battery powered oxygen sensor. Its notable features are long service life, excellent chemical stability, and not easily disturbed and affected by CO2. The KE series sensors were developed to meet the growing demands of various industries for detecting oxygen.
