A description is made of the structural characteristics of the new-type U-tube heatexchanger, and an introduction is given to its use in the crude methanol system.
阐述了新型U形管换热器的结构特点，介绍了该种换热器在粗甲醇系统中的应用情况。
2
The reasonable improvement of the lean oil technics in crude benzene tower and heatexchanger of lean and fat oil is introduced according to the practical conditions after reconstruction.
A new U-shaped heatexchanger is presented, and its structural characteristics are discussed. The U-shaped heat exchangers are used in the industrial crude methanol system.