公开(公告)号：US20170023319A1

公开(公告)日：2017-01-26

申请号：US15216204

申请日：2016-07-21

申请人： CANADIAN NATURAL RESOURCES LIMITED

发明人： Ken KREWULAK ,  Stephen SCOTT ,  Kyle FIOLKA ,  Michael BUCHOLTZ

IPC分类号： F28G1/08 ,  F22B37/48 ,  F28G15/02

CPC分类号： F28G1/08 ,  F22B37/486 ,  F28G15/02

摘要： A firetube scraper device comprising: at least one carriage assembly mounted on the firetube; a drive line and drive means for displacing the carriage assembly longitudinally along the firetube; wherein said carriage assembly surrounding the entire circumference of the firetube and comprising at least one row of scraper fins, each of said scraper fins having an inner surface adapted to frictionally engage an outer firetube surface defined by at least an upper portion of the surface of the firetube exposed to contaminants deposited onto a firetube surface.

摘要翻译： 一种焊枪刮刀装置，包括：安装在所述火管上的至少一个支架组件; 驱动线和驱动装置，用于沿着烟管纵向移动托架组件; 其中所述托架组件围绕所述管状管的整个圆周并且包括至少一排刮板，每个所述刮板具有内表面，所述内表面适于摩擦地接合至少由所述刮板的表面的上部限定的外管壁表面 火管被暴露于沉积在火管表面上的污染物。