Study on the effect of explosion suppression equipment on hydrogen explosions |
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| Institution: | 1. State Key Laboratory of Fine Chemicals, Department of Chemical Machinery and Safety Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, PR China;2. Beijing Institute of Aerospace Testing Technology, Beijing, 100074, PR China;1. Swiss Process Safety Consulting GmbH, Schönenbuchstrasse 36, CH-4123, Allschwil, Switzerland;2. Covestro Deutschland AG, Kaiser-Wilhelm-Allee 101–103, D-51373, Leverkusen, Germany;1. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230026, China;2. School of Mechanical Engineering, Purdue University, West Lafayette, IN, 47907-2088, USA;3. College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, China;1. Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, 1 University Road, Yanchao District, Kaohsiung, Taiwan, ROC;2. Occupational Safety and Health Administration, Ministry of Labor, 439 Zhongping Road, Xinzhuang District, New Taipei, Taiwan, ROC |
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| Abstract: | Hydrogen safety is a critical component of modern industrial safety production. In this study, a set of hydrogen explosion suppression equipment is designed independently. The suppression effects of the equipment on hydrogen explosions are studied at normal room temperature and pressure. The experimental results show that the actuation time of the equipment and the spraying mode of the suppressant are the main factors leading to the failure of the hydrogen explosion suppression equipment. The flame, with a hydrogen equivalence ratio of 0.7 and 1.0, spreads out of control when the suppressant touches the flame front. At this time, the addition of the suppressant enhances flame propagation and increases pressure. In addition, because the suppressant does not fully cover the developing flame, the hydrogen flame with the equivalence ratio of 0.5 eventually breaks through the suppressant cloud, and the explosion happens. However, when the initial flame is completely covered by the suppressant, the hydrogen explosion is suppressed by hydrogen explosion suppression equipment. This research provides a solid and reliable foundation for hydrogen explosion suppression equipment in industrial safety and production protection. |
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| Keywords: | Hydrogen safety Hydrogen explosion Explosion suppression equipment |
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