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石油化工生产装置的工艺物料和仪表管线习惯使用外热式蒸汽伴热,通常用10公斤/厘米~2蒸汽作为伴热保温的热源。这种蒸汽伴热方式是蒸汽在管路内直通而过,因此,热能利用效率低,蒸汽浪费大。我厂根据生产实践,对油品管线外伴热蒸汽线进行改造。伴热线使用距离由原来100~150米延长到500~600米。减少蒸汽排凝点和供汽点约100处,既节省蒸汽又方便管理。过去由于伴热线放水距离
The petrochemical production plant process materials and instrumentation pipe customary to use exothermic steam with heat, usually with 10 kg / cm ~ 2 steam as a heat tracing heat source. This steam heat way is steam through the pipeline through, therefore, the use of thermal energy efficiency is low, steam waste. According to my factory production practices, the oil pipeline heating steam line outside the transformation. With the use of hotline distance from the original 100 to 150 meters extended to 500 to 600 meters. Reduce the steam condensing point and the steam supply point about 100, both to save steam and easy management. In the past due to hot water drain distance