Experimental study on mechanism of the water-insoluble heavy gas diluted with water curtain
Water curtain could dilute leaking poisonous gas or obstruct the diffusion of the poisonous gas to the sensitivity regions safely,efficiently and quickly.So it was very important to understand diffusion mechanism of the heavy gas diluted by water curtain and explore pattern of the effect of water curtains setting parameter on the diffusion capacity of heavy gas diluted with water curtain.In this paper,experiments of fan water curtain and cone water curtain diluting CO2 in open space were done.According to experiment results,dilution mechanism of fan water curtain and cone water curtain were obtained.The protective screen formed by fan water curtain could obstruct heavy gas diffusion effectively,and fan water curtain could also disperse heavy gas upwards through the mechanical effect.Cone water curtain would atomize the water and mix the heavy gas and air intensively with the help of air entrainment to dilute the heavy gas clouds.On this basis,it was concluded that when water curtain was opened before heavy gas passed through water curtain and the cone water curtain was installed in front of the fan water curtain,dilution effect was better.When water curtain was opened after heavy gas passed through water curtain and the fan water curtain was installed in front of the cone water curtain,dilution effect was better.
Safety engineering fan water curtain cone water curtain heavy gas dilution mechanism
GUO Weiwei YUE Taotao WANG Ruizhi HUA Min LIU Yi JIANG Zhenglin PAN Xuhai
Institute of Fire Science and Technology,Nanjing University of Technology,Nanjing 210009,China;Jiang Mary Kay OConner Process Safety Center,Texas A&M University,College Station 77843-3122,USA The Fire Bureau of Jiangsu Province,Nanjing 210013,China
国际会议
2012 International Symposium on Safety Science and Technology (2012安全科学与技术国际会议)
南京
英文
378-383
2012-10-23（万方平台首次上网日期，不代表论文的发表时间）