| 摘要 |
<p>PURPOSE:To enhance the recovery efficiency of energy by recoverying the quantity of heat of the side reflux of a distillation tower by a heat pump to utilize the same as a distillation heat source. CONSTITUTION:The side reflux 2 is taken out from a rectifying column 1 to evaporate the medium 4 in an evaporator 3 and steam is compressed and raised in its temp. by a compressor 5 while crude oil 9 is heated by a condenser 8. The crude oil is heated by a heating furnace 11 to be supplied to the rectifying column 1. The medium is reduced in pressure by a pressure reducing valve 12 and supplied to the evaporator 3.</p> |
