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采用夹点法对某炼油厂常减压装置的换热网络进行了优化合成，与原换热网络相比，本换热网络的加热炉热负荷大约降低了１２．７％，换热面积增大了７．８％，冷公用工程均用于发生水蒸汽．
The pinch point method was used to optimize the heat exchange network of the atmospheric and vacuum unit of a refinery. Compared with the original heat exchange network, the heat load of the heat exchanger in this heat exchange network decreased by about 12.7%, and the heat transfer area increased Large 7.8%, cold public works are used to generate water vapor.