| 摘要 |
<p>CLEANING APPARATUS FOR TUBES AND TUBE BUNDLES (1) A construction for reciprocating and rotating a lance comprising a frame, attachment structure for securing said frame relative to a tube to be cleaned, lance reciprocating and rotating mechanism on said frame substantially adjacent said tube, a carriage for attachment to the end of the lance remote from said tube, a swivel connection on the carriage for permitting rotation of the lance while high pressure water is being fed thereto, a carriage support for supporting said carriage for movement toward and away from said tube, and a mounting arrangement for mounting said carriage support. (2) A frame for mounting a lance advancing mechanism including first and second spaced frame members, clamp members for attaching the first and second frame members to the end plate of a tube bundle, track members extending between the first and second frame members, a carriage for mounting a lance advancing mechanism mounted on the track members, an adjustment arrangement for varying the position of the track members relative to the end plate, and indexing members for varying the position of the carriage on the track members.</p> |
