Absorption characteristics of methane-air mixture explosion energyby foam metal with a corrugated surface against explosion

ZHANG Baoyong; TAO Jin; CUI Jiarui; ZHANG Yiyu; WANG Yajun; HAN Yonghui; SUN Man

doi:10.11883/bzycj-2023-0084

Volume 43 Issue 11

Nov. 2023

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ZHANG Baoyong, TAO Jin, CUI Jiarui, ZHANG Yiyu, WANG Yajun, HAN Yonghui, SUN Man. Absorption characteristics of methane-air mixture explosion energyby foam metal with a corrugated surface against explosion[J]. Explosion And Shock Waves, 2023, 43(11): 115401. doi: 10.11883/bzycj-2023-0084

Citation:

ZHANG Baoyong, TAO Jin, CUI Jiarui, ZHANG Yiyu, WANG Yajun, HAN Yonghui, SUN Man. Absorption characteristics of methane-air mixture explosion energyby foam metal with a corrugated surface against explosion[J]. Explosion And Shock Waves, 2023, 43(11): 115401. doi: 10.11883/bzycj-2023-0084

Citation:

ZHANG Baoyong, TAO Jin, CUI Jiarui, ZHANG Yiyu, WANG Yajun, HAN Yonghui, SUN Man. Absorption characteristics of methane-air mixture explosion energyby foam metal with a corrugated surface against explosion[J]. Explosion And Shock Waves, 2023, 43(11): 115401. doi: 10.11883/bzycj-2023-0084

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Absorption characteristics of methane-air mixture explosion energyby foam metal with a corrugated surface against explosion

doi: 10.11883/bzycj-2023-0084

Department of Safety Engineering, Heilongjiang University of Science and Technology, Harbin 150022, Heilongjiang, China

Received Date: 2023-03-07
Rev Recd Date: 2023-08-29

Available Online: 2023-09-13

Publish Date: 2023-11-17

Abstract

Abstract

To further explore the energy absorption characteristics of the foamed metal with the explosion-facing surface structure different from that of its base subjected to a gas explosion, based on the previous experiments carried on the energy absorption characteristics of serrated structural materials, mixed methane-air explosion energy absorption tests were conducted by using the self-built gas explosion pipe network experimental platform. Three kinds of different corrugated foamed metals were chosen as the explosion-proof materials, and their explosion-facing surfaces took on full convex, full concave, and continuous concave/convex, respectively. The variations of the corresponding typical physical quantities with time and space were measured and analyzed, including explosion shock wave overpressure, flame propagation velocity, and flame temperature. Results are shown as follows. (1) The foamed metals with corrugated structures can reduce explosion overpressure more effectively than the ones with the serrated structure and plane structure, and the foamed metals with fully convex and continuous concave-convex corrugated structures can decrease the explosion shock wave overpressure faster than the ones with serrated and full-concave structures. Additionally, the foamed metals with serrated structures can slow the flame propagation velocity down slightly faster than the ones with the corrugated and plane structures. And the foamed metals with the corrugated structures can weaken the flame temperature more strongly than the ones with the serrated and plane structures. (2) The quenching parameters of the corrugated foam metals whose explosion-facing surfaces taking on full convex, full concave and continuous concave/convex are 5.338, 4.340 and 6.090 MPa·°C, respectively, which are lower than that of the one with the serrated explosion-facing surface 17.680 MPa·°C, and far lower than the safety value 390 MPa·°C, indicating that the foamed metals with the corrugated explosion-facing surface have better explosion-proof capabilities. (3) The energy absorption performances of the foamed metals with the corrugated explosion-facing surfaces are stronger than those of the ones with the serrated explosion-facing surfaces, and are obviously stronger than that of the one with the plane explosion-facing surface. In addition, the foamed metals with the corrugated explosion-facing surfaces can still keep intact after the experiments, displaying that their material strengths are higher than those of the ones with the serrated structures.
- explosion-facing surface,
- foamed metal,
- corrugated structure,
- gas explosion,
- explosion-proof capability,
- energy absorption

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References(35)

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