Apparatus for inspecting heat exchanger tubes

Details Apparatus for inspecting heat exchanger tubes Apparatus for inspecting heat exchanger tubes

1983-05-06

1985-03-19

Ostrager, Allen M.

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

Remotely controlled inspection means

165 40, F28G 1502, F16C 112, F16G 900

Patent

active

045053235

ABSTRACT:
Apparatus for checking the tubes of a heat exchanger in an area spaced by a given distance from the end of said tubes, by means of a probe performing a helical movement, wherein the apparatus comprises a threaded rod, which can be screwed into a nut carried by a positioning and supporting device suspended on the exchanger tubes, first flexible means, which are perfectly rigid in torsion and of constant length ensuring the integral transmission of a rotation torque between the threaded rod and the probe, second flexible means ensuring the integral transmission of said rotation torque between the rotation control means and the threaded rod, a flexible sheath connecting the nut and a fixed chassis external of the exchanger, and means for sliding the assembly constituted by the probe, the first flexible means, the threaded rod and the second flexible means between a rest position in which the probe is placed in the said nut and an inspection position in which the threaded rod engages in the nut.

REFERENCES:
patent: 4004698 (1977-01-01), Gebelin
patent: 4172492 (1979-10-01), Abell et al.
patent: 4231419 (1980-11-01), Gugel
patent: 4278044 (1981-07-01), French
patent: 4302146 (1981-11-01), Finlayson et al.
patent: 4393920 (1983-07-01), Shima et al.
patent: 4438805 (1984-03-01), Gugel

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