【Ten Years of Rapid Development in Chemical Engineering Equipment】From 1299 to 2023, Qingdao Institute of Safety Engineering developed a DN1000 flame arrester technology
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Recently, the Innovation Team for Gas Phase Combustion and Explosion Prevention at Sinopec Qingdao Safety Engineering Research Institute (hereinafter referred to as the \"Safety Engineering Institute\") completed research and development experiments on detonation-type flame arrestors for DN1000 pipelines at the Haiyang test site. This makes the institute the first company in China and the second in the world to master this technology for DN1000 flame arrestors. A flame arrester is a key safety device in the control of VOCs to prevent major fire and explosion accidents. In recent years, with the implementation of plant-wide VOCs control projects, petrochemical companies have seen an increasing demand for large-sized flame arrestors. However, the relevant technologies are held by a few foreign manufacturers; not only are the prices high, but there are also issues such as long delivery times and difficulties in subsequent maintenance, which have gradually become bottlenecks hindering the progress of these VOCs control projects. To address this issue, the gas-phase combustion and explosion team, relying on the project titled \"Study on the Amplification Effect of Flame Arresting Mechanisms and Development of Large-Diameter Flame Arresters\" sponsored by the Group Company’s Science and Technology Department, formed a task force to investigate the development and suppression mechanisms of deflagration and detonation in the presence of obstacles within expansion chambers. They optimized explosion mitigation techniques and developed a design method for large-sized flame arresters. The team, in collaboration with Angong Equipment, the technology innovation incubation company affiliated with Angong Institute of Technology, successfully overcame the challenges related to the high-precision processing and assembly of large-sized flame arrestors, and completed the trial production of DN1000 flame arrestor samples. After more than 2 months of testing, the flame arrester’s performance in preventing deflagration and detonation was evaluated, and both aspects met the requirements of the ISO16852 standard. The successful development of the DN1000 flame arrester by Anhui Institute of Engineering is expected to gradually enable domestic substitution in this field, breaking the technical monopoly held by foreign manufacturers in the area of large-size flame arresters. Beijing Zhongzhi Weiyeh Technology Training Center focuses on providing professional technical training and management consulting services to clients in the petrochemical industry. After more than a decade of development, it has grown into a professional service organization that offers both management consulting and technical training, staffed by over 500 top experts in the field.
7 achievements of Anhui Institute of Technology passed the appraisal by the group company Report by our newspaper: Recently, the Science and Technology Department of the group company held an appraisal meeting at the Anhui Institute of Technology, and 7 scientific and technological achievements from this institute passed the appraisal. Among them, two achievements – “New type of flame arrester based on detonation-induced attenuation technology” and “High-flow liquid nitrogen foam fire extinguishing technology and equipment” – have reached the international leading level. Five other achievements – “Acoustic monitoring and early warning technology for the damage condition of operating high-parameter pressure vessels”, “Intelligent inspection technology and equipment based on the integration of multi-dimensional sensing parameters”, “Low-overpressure and ultra-low-leakage breathing valve technology”, “Quantitative assessment and intelligent management technology for the safety risks of typical petrochemical hazardous waste”, and “Broad-spectrum micro-nano array gas sensing and early warning technology and its applications” – have reached the international advanced level. “\"New type of flame arrester based on detonation-induced attenuation technology\" reveals two mechanisms by which flame arresters fail to perform their function; it develops detonation-induced attenuation technology as well as a new series of high-performance flame arresters, breaking the monopoly in foreign markets. More than 500 units of these devices have been installed in over 30 enterprises, where they have demonstrated good performance and yielded significant economic and social benefits. “The \"High-Flow Liquid Nitrogen Foam Fire Extinguishing Technology and Equipment\" has developed high-stability mixed foaming techniques, as well as technologies for transporting and spraying high-flow liquid nitrogen foam for fire extinguishing. It has also created a complete set of technologies for high-flow liquid nitrogen foam fire extinguishing along with corresponding fire trucks, thereby enhancing the protective and fire-extinguishing capabilities of liquid nitrogen foam. (
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【Haichuan Safety Discussion Thread】A compilation post; updates will be made regularly – feel free to discuss! https://bbs.hcbbs.com/thread-5497581-1-1.html (Source: Haichuan Chemical Industry Forum)