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我厂催化裂化装置,1974～1978年间,由于产销不平衡,设备不配套,每天由放火炬所耗费的燃料气有100多吨。为了回收燃料气,保护环境,78年对全厂的管网进行了改造,采取增设中压管网,严格控制排放系统,排空气体逐级排放等措施,改变了过去那种高低压气体都直接排放火炬的现象。把收集起来的气体,引到动力锅炉、发电站及各工艺装置的加热炉作燃料。为了使用户得到压力稳定的燃料气,采用了加热汽化液态烃以补充管网压力的方法。管网压力降低时,液态烃管路上的阀门打
I plant catalytic cracking unit, 1974 to 1978, due to production and marketing imbalance, equipment is not complete, the daily spent by the torch fuel gas has more than 100 tons. In order to recover fuel gas and protect the environment, the network of the whole factory was rebuilt in 1978. Some measures such as adding medium-pressure pipe network, strictly controlling the discharge system and discharging the evacuation gas step by step, changed the previous high and low pressure gas Direct discharge of the torch phenomenon. The gas collected leads to power boilers, power stations and heating furnaces of various process plants for fuel. In order to provide users with pressure-stable fuel gas, a method of heating vaporized liquid hydrocarbons to supplement the pressure in the pipe network is used. When the pipe network pressure is reduced, the valve on the liquid hydrocarbon pipeline is hit