What kind of gas detector belongs to explosion-proof gas detector
In the face of various gas detector varieties and brands, how to understand the difference between explosion-proof gas detectors and other non-explosion-proof gas detectors For Ex is the national explosion-proof standard number, IIC is the gas explosion standard code, T6 level, represents the temperature value of the ignition of the explosive gas, the higher the standard here, the better, we will also see some T4, T2, T3 standard numbers The smaller the grade is, the lower the Gb is. It is positioned in the explosion-proof products, suitable for explosive environments GB3836.1-2020 and GB3836.2-2010 intrinsically safe "i", you may not know the specific inspection items, what needs to be tested, let's understand Let's talk about the specific content. The items that need to be tested are: mechanical inspection, shell pressure test, internal ignition non-explosion test, impact test, temperature test, heat and temperature resistance test, introduction device sealing test and tightening performance test, Shell protection experiments, etc. Explosion-proof and explosion-proof standards can be met only after all of the above content meets the standards. Explosion-proof certification can be issued, it is an explosion-proof gas detector, and it can be used to detect gas concentration in an explosion-proof environment with flammable and explosive areas.
Where will explosion-proof gas detectors be used? According to the industry division, the most common ones are petroleum, petrochemical, coal mine, and gas. These high-risk occasions are all areas where flammable and explosive gas components exist. Therefore, the equipment used in this industry must have explosion-proof function. Individual industries, individual fields or individual locations have dangerous test environments. If it is a detector for testing flammable gas, it is basically an explosion-proof product. For some toxic gas detection occasions such as occasions without flammable gas, it can be considered not. Explosion-proof products. The above principles are applicable objects in the field of application industry.
How to choose a suitable explosion-proof gas detector product mainly depends on the explosion-proof mark level, the explosion-proof qualification certificate, and the explosion-proof certificate number to confirm the real validity of the explosion-proof product. These are a reference for selecting products and gas detector manufacturers. There are obvious explosion-proof standard codes and application marks on the explosion-proof products. If not, it is mainly whether the product has passed the explosion-proof certification. So does our gas detector need to test different gases and each product needs an explosion-proof certificate? Usually products of the same type, products of the same series and structure correspond to an explosion-proof certification if the product has not changed, so different gas detection objects have the same internal structure and design, the only difference is that the internal sensor properties are different, so There are essentially no structural and design changes. Therefore, as long as we use this series of products, it is suitable for testing combustible gases, carbon monoxide, carbon dioxide, hydrogen sulfide, or sulfur dioxide. As long as the form and structure have changed, it belongs to a different product series and must correspond to another explosion-proof certification, so everyone pays attention to the difference between the serial number of the explosion-proof certification and the product type category when purchasing products.
