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在炼油生产过程中,一般要把原油加热到一定程度,再经各种不同的工艺加工过程得到所要求的产品。炼厂使用的加热设备,主要是加热炉,其容量大,消耗的燃料多,如250万吨/年原油蒸馏装置加热炉容量为2万大卡/时,炼厂加热炉能耗约占全厂总能耗的35～40％。加热炉能耗大的主要原因之一是仪表检测手段不完善,人工操作,技术水平较低。因此,很有必要改造现有加热炉的检测与控制系统,提高热效率,节约燃料。
In the process of oil refining, the crude oil should generally be heated to a certain extent, and then the required products are obtained through various process processes. The heating equipment used by the refinery is mainly a heating furnace, which has large capacity and consumes a large amount of fuel. For example, the heating capacity of a crude oil distillation unit of 2.5 million tons / year is 20,000 kcal / Plant total energy consumption of 35 to 40%. Heating furnace is one of the main energy consumption is not perfect means of instrumentation, manual operation, the technical level is low. Therefore, it is necessary to transform the existing heating furnace detection and control system to improve thermal efficiency and save fuel.