Background of petrochemical industry: With the improvement of global science and technology, although new energy has become a popular energy source of the times, traditional petroleum energy is still the most important energy source in the world. According to the current statistics, the petrochemical industry is an important part of the chemical industry and one of the important pillar industries in China. With the development of national economy, the use of oil is increasing year by year. In recent years, China has carried out large-scale oil and gas import pipeline construction, which ensures the smooth import of oil and gas resources and lays the foundation for the development of petrochemical industry. Therefore, gas safety detection is particularly important in the petrochemical industry.

Gas safety detection in petrochemical industry: the process of petroleum refining mainly includes: pretreatment of crude oil, atmospheric and vacuum distillation, catalytic cracking, catalytic reforming, delayed coking and product refining; The chemical production process mainly includes: principle treatment, chemical reaction and product refining; In the whole petrochemical industry manufacturing process, it is inevitable that many toxic gases such: amine, hydrogen sulfide, sulfur dioxide, methyl sulfide, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide and hydrogen sulfide and other inorganic waste gas, as well as VOC: benzene, toluene, xylene, acrylic acid, ethers, lipids, alcohols, ketones and styrene and other organic waste gas. In order to ensure the safety of production, processing, transportation and use, it is particularly important to detect and monitor the gas pressure, gas leakage explosion-proof and various toxic leaks in each link. In the face of this petrochemical industry environment, the life safety of workers has become the most important production safety regulations. In addition, the exhaust gas or leaked gas discharged in the petrochemical industry process and transportation process will also cause great pollution to the environment. The exhaust gas discharged can only be discharged into the environment after treatment. The leakage of chemicals is also a matter related to life safety. Once the chemicals leak, large areas of land, vegetation and human beings may face the threat of life. In this case, it is necessary to detect the leakage in time and take preventive measures as soon as possible.

Sensor introduction: A variety of Alphasense gas sensors in the UK, which are represented by Shenzhen, are very suitable for gas safety detection in the petrochemical industry. They can carry out real-time production gas safety monitoring, leakage monitoring during transportation and storage, and exhaust gas analysis and detection during emission in the entire petrochemical industry production process.

Electrochemical principle of hydrogen chloride HCL-A1, chlorine CL2-A1, hydrogen sulfide H2S-A1, ammonia NH3-AF and other sensors. These Alphasense sensors have the characteristics of high sensitivity, reliability, good repeatability, high resolution, and fast response speed. They can be applied to gas safety detection in the petrochemical industry, rapid leak detection, real-time monitoring and feedback, and accurate detection of the environment. Gas concentration and other characteristics.

Sensor parameters:

Model Size Range Resolution Overload Resistance

HCL-A1              20.0*16.5            0~100ppm              1ppm               200ppm

HCL-B1              32.0*16.5            0~100ppm              0.1ppm            200ppm

HCL-A1 small size, high resolution, good linearity, strong stability, can be applied to handheld or portable alarm equipment; HCL-B1, large size, ultra-high resolution, fast response, good linearity, high sensitivity, can be applied to fixed alarm equipment; can be applied to a variety of chemical, petroleum, water plants and other places of gas detection projects.

Model Size Range Resolution Overload Resistance

CL2-A1               20.0*16.5              0~20ppm              0.02ppm            50ppm

CL2-B1               32.0*16.5              0~20ppm              0.02ppm            60ppm

CL2-D4              14.5*8.4                 0~20ppm              0.1ppm              60ppm

CL2-A1, high CL2-B1 resolution, good linearity, fast response speed, strong stability, can be applied to handheld, portable alarm equipment, fixed alarm equipment; can be applied to a variety of chemical, petroleum, water plants and other places of gas detection project.

Model Range Resolution Overload Resistance

PID-A15                0~200ppm              100ppb               4000ppm

Can detect a variety of volatile organic compound gases, professional for oil refining, chemical and other industrial environment or storage area safety detection, leak detection, pollution source detection.