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1991年3月26日～30日在济南炼油厂举办了关于减压炉出口阀门取舍问题的专题研讨班。近年来,不少炼油厂对减压炉出口转油线进行了改造,努力降低转油线的压降和温降,以实现高真空、低炉温,改善油品质量,提高总拔出率的目的。在改造实践中,各厂普遍认识到转油线的压降和温降主要发生在炉分支出口到大转油线之间的过渡段上,因此,改进过渡段的结构,是转油线设计的关键。而目前各厂普遍存在的炉出口阀门不仅妨碍过
From March 26 to March 30, 1991, a seminar was held in Jinan Refinery on the selection of pressure relief valve outlet valves. In recent years, many refineries have been retrofitted to the oil-extraction line at the exit of the decompressor to try to reduce the pressure drop and temperature drop of the oil-transferring line in order to achieve high vacuum and low furnace temperature, improve oil quality and increase the total pull-out rate the goal of. In retrofitting practice, the plants generally recognize that the pressure drop and temperature drop of the oil transfer line mainly occur in the transition section between the exit of the furnace branch and the large oil transfer line. Therefore, the structure of the transition section is improved to design the oil transfer line key. At present, the prevalence of furnace outlet valve factory not only obstructed