| 摘要 |
A boiler wall tube tool for clamping together for welding adjacent ends of boiler wall tube segments in a boiler wall having narrowly spaced apart tubes. The tool includes a base with a tube engaging recess, and a pair of clamp members that attach to the base. The base has cutouts and notches to facilitate a welder's observation of the welding process. Each of the pipe clamp members includes a parallel pair of guides that are insertable between adjacent tubes of a boiler wall and are attachable by nuts and bolts to opposite sides of the base. A header that joins the guides has a threaded bore. A saddle block mounted for sliding movement between the guides is attached by a swivel nut to a clamp screw that is mounted within the threaded bore. Each saddle block is recessed for engaging an exterior surface of one of two aligned tube segments. The tool clamps aligned segments together by rotation of the clamp screws in a first direction; rotation of the screws in an opposite direction permits detaching the tool from the pipe segments. A lateral adjustment screw is provided for adjusting the tool for snug fit to adjacent, aligned tube segments.
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