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洛阳石化1400kt/a延迟焦化装置由工艺生产和石油焦处理两大部分组成,分为8个生产单元。结合热力学第一定律和第二定律,从能量的数量和质量结合的角度出发,对该装置加热炉、换热器和空冷器进行有效能分析、计算,揭示了能量中的有效能在装置或设备中的转换、传递、利用和损失情况,从而获得单元换热设备的节能和改进措施。研究表明,延迟焦化装置主要用能设备中,有效能损失率较大的有加热炉F1101、空冷器A1121A~H,以及换热器E1120A/B、空冷器A1401A~H、换热器E1119A/B、换热器E1208。加热炉热负荷对装置能耗影响最大,占总热负荷的33.07%,是装置第一用能大户,装置节能工作应围绕提高加热炉热效率入手。空冷器A1115A~H、A1121A~H有效能利用效率均低于40%,热物流入口温度分别为118℃和140℃,应回收这部分低温热。
Luoyang Petrochemical 1400kt / a delayed coking unit consists of two parts: process production and petroleum coke treatment, which is divided into 8 production units. Combined with the first law of thermodynamics and the second law, from the point of view of quantity and quality of energy, effective analysis and calculation of the heating furnace, heat exchanger and air cooler of the device revealed that the effective energy in the energy Equipment conversion, transmission, utilization and loss, so as to obtain energy-saving unit heat exchanger and improvement measures. The results show that the main energy-using equipment of delayed coking unit is the heating furnace F1101, air-cooler A1121A-H, heat exchanger E1120A / B, air cooler A1401A-H, heat exchanger E1119A / B , Heat exchanger E1208. Heating furnace load on the energy consumption of the greatest impact, accounting for 33.07% of the total heat load, is the first large energy users, energy-saving devices should focus on improving the thermal efficiency of the furnace start. Air-cooler A1115A ~ H, A1121A ~ H effective utilization efficiency of less than 40%, the hot air inlet temperature were 118 ℃ and 140 ℃, should be recovered part of the low-temperature heat.