在石油、化工、医药等企业中,许多原、配料及产品都属于易燃易爆物质。这些物质在生产、储存、运输和使用过程中,都不可避免地要析出气体或挥发成蒸气,当有跑、冒、滴、漏现象时尤为严重。如果这些气体在空气中达到一定数量,就会形成爆炸性混合气体,给安全生产带来严重的威胁。 In the petroleum, chemical, pharmaceutical and other enterprises, many of the original ingredients and products are flammable and explosive materials. These substances in the production, storage, transport and use of the process, inevitably have to precipitate out the gas or volatile into vapor, when run, run, drip, leakage phenomenon is particularly serious. If these gases reach a certain amount in the air, it will form an explosive mixture of gases, which pose a serious threat to safety in production.