摘要
采用无刚性骨架的普通柔性风筒，加一个导向筒制成一种新型的柔性可伸缩风筒。它克服了目前使用的柔性可伸缩风筒制作工艺复杂、风阻大等方面的缺点。
A new soft telescopic duct is made of a common soft duct that does not have support ring and a guide pipe. It ovecomes the defects that the process is compicated and the pressure drawdown is large on the soft telescopic duct used now.
基金
煤炭高等院校青年科学基金
