自由直埋式管道已普遍采用波纹补偿器 ,由于土壤中含有各种腐蚀介质特别容易使补偿器的主要部件波纹管出现孔蚀、应力腐蚀现象 ,结果波纹管在远没达到设计寿命时即发生泄漏或开裂 ,造成不应有的损失 ,本文介绍了针对直埋式波纹补偿器的特点所设计的几种防腐蚀结构 ,这些结构已获得了国家专利。 Free direct buried pipe corrugated compensator has been widely used, because the soil contains a variety of corrosive medium is particularly vulnerable to the bellows of the main components of compensator pitting corrosion, stress corrosion phenomenon, the results of the bellows far in the design life has occurred Leakage or cracking, resulting in undue losses, this article describes the characteristics of buried bellows designed several anti-corrosion structure, these structures have been patented.