Abstract
The placement of chemical storage tanks is an important topic in industrial safety, and its placement method is based on the study of the safety spacing of storage tanks. This paper takes LPG and LNG storage tanks as examples. It uses vapor cloud explosions, pool fires, pressure vessel explosions, boiling liquid expansion vapor explosions and other fire and explosion accident consequences models and risk probability analysis methods to analyze. It is proved that the transfer of storage tanks from ground to underground can significantly reduce the scope of impact of explosion accidents, thereby increasing the utilization rate of industrial land.
Highlights
This paper studies and analyzes the influence of the storage tank setting method on the safety distance
We have a certain understanding of the influence law of combustionsupporting substances, combustible gas, combustible liquid, gas concentration diffusion, thermal radiation, shock wave, debris, etc. on the surroundings
The initial kinetic energy of the explosion fragments of an 80m3 LPG storage tank is 9.06×105J, and the initial kinetic energy of the explosion fragments of a 5000m3 LNG storage tank is 1.87×107J, both of which are less than the energy consumption required to penetrate a 20cm concrete underground roof
Summary
This project takes the setting of chemical storage tanks as the starting point, and selects the technical methods widely used in China, the technical methods specified by CCPS and TNO, and the previous wind tunnel tests. Pool fire[7], jet fire, fireball, boiling liquid expansion vapor explosion[8], vapor cloud explosion[9], pressure vessel explosion and underground explosion and other fire and explosion accident consequence models and risk probability analysis methods to Study the safe distance of liquid oxygen, hydrogen, LPG, LNG and gasoline storage tanks under different settings
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