关键词: 石油化工企业, 抗爆建筑物, 新风系统, 净化, 热湿处理, 抗爆阀, 密闭阀, 气体检测报警

Abstract: There are many differences between the design of fresh air systems of blast resistant buildings and non-blast resistant buildings in petrochemical enterprises. The fresh air systems shall be designed separately based on the function of the rooms and and the fresh air volume needs to be increased appropriately. In addition to the conventional purification treatment, the fresh air system also needs chemical purification to remove harmful gases. The heat and moisture treatment needs to fully consider the problem of energy saving, avoid the cold and heat offset, and try to recover the energy taken away by the exhaust air. The air intake position of fresh air shall be clean. When explosion occurs around the building, the antiknock valve will automatically close to prevent the damage caused by external explosion shock wave to the building, and close the electric airtight valve and fresh air unit to prevent the toxic and combustible gas from entering the building. According to the issues mentioned above, put forward some feasible measures to insure the fresh air quality and the reliability of the fresh air system.

Key words: petrochemical enterprises, blast resistant buildings, fresh air system, purify, heat and moisture treatment, antiknock valve, airtight valve, gas detection alarm