| dc.description.abstract | Most organic solvents have the characteristics of volatility and flammability. Their volatility is spread in the working environment through the air. Long-term exposure to easy to human health hazards, and even carcinogenic risks. Flammability is prone to fire burning substances, once a fire, fear of endangering the lives of personnel and damage to surrounding facilities. This study is based on the use and storage of organic solvents for occupational exposure assessment and Fire Dynamics Simulator software simulation. The purpose of is to understand the actual exposure of a R Research Institute, potential hazards of the working environment and fire risk.
Five similar exposure areas of 8 organic solvents (methanol, ether, ethyl acetate, acetone, dimethyl methylamine, dichloromethane, tricloromethane, orthopane) were selected for investigation and study. In terms of exposure assessment, the values of the 2017-2019 working environment monitoring data and using the data for additive effect assessment and statistical analysis. The values all meet the legal permissible limit, which is compared with the chemical control banding semi-quantitative and quantitative zero ventilation model. The results of the assessment are overestimated, so as to strengthen protective measures to reduce the risk of occupational disasters.
Using FDS software to simulate the storage of organic solvents and analyze the fire field. Results show that the combustion generated by thermal radiation and high temperature, likely ignite adjacent containers or surrounding facilities. Causing chain effects, making the rapid spread of the fire difficult to control. Therefore, to avoid fire accidents or minimize the damage, in addition to strengthening fire protection in each area, safe storage and management. Further, it’s more important to improve personnel awareness of hazards and safety concepts. | en_US |