网络 板式塔
- The combination directed floating valve trays have been used in the first extractive distillation column of butadiene unit to replace the F1 type valve trays.
在丁二烯装置第&萃取精馏塔内，应用组合导向浮阀塔板代替F1型浮阀塔板。 - New type of plate column ( guiding ladder shapped float valve tray) and new packing materials ( wave ring packing material-CHINAPAK) are introduced on the basis of analysing different column trays and new packing materials in China.
在评述目前国内常用的几种塔板和新型填料之后，着重介绍一种新型塔板（导向梯形浮阀塔板）和一种新型填料（波环填料&乾隆帕克）。