Through checking the heat removal of the catalyst cooler based on running data and considering the changeable feedstock source, it was recognized that the heat removal range was rather narrow.
根据生产数据核算外取热器取热情况，结合装置原料多变的实际，认为其取热范围偏窄。
2
The welding procedure of main pressure parts , its bulk heat treatment and checking point are detailed.
详细介绍了主要受压件的焊接工艺、整体消除焊接应力热处理技术以及关键的检验控制点。
3
The situation of forced shell and support saddle of the giant superimposed heat exchangers is analysed, and the means of designing and checking are presented.