| 摘要 |
Tubes of a condenser or the like are supported by resilient tubing threaded, while in a flattened evacuated state, between the tubes and then allowed to return to its normal shape to press against the tubes. The tubing is sealed at one end by a detachable clip, or by a plate which stretches the tubing end flat, and the clip or plate is pulled through the tube bundle by a line fed between the tubes by gravity. Alternatively the tubing end is clamped by a tool which is remotely manipulated to push the tool and tubing between the tubes and then to release the tubing end. The tool comprises two relatively pivotable clamping plates each provided with a manipulation rod. The tubing ends are secured in a perforated block at the periphery of the tube bundle, by plugs engaging the tubing ends in the perforations of the block. |
