Leak detection in heat exchanger tubes and their tube sheet conn

Details Leak detection in heat exchanger tubes and their tube sheet conn Leak detection in heat exchanger tubes and their tube sheet conn

1982-07-22

1984-08-28

Goldberg, Gerald

Measuring and testing

With fluid pressure

Leakage

13724741, G01M 312

Patent

active

044676352

ABSTRACT:
To test a shutdown steam condenser for tube leakage, the pressure in the water boxes is reduced below atmospheric pressure while the steam casing is open to atmospheric pressure, and leakage of air into the boxes is used as an indication of the tube leakage. The leakage is preferably indicated with a soap bubble test by a workman inside the box. Although the entrance manholes to the water box are substantially sealed during testing, for safety protection one can be sealed with a U-tube water seal so that it will be broken automatically by an excessive underpressure.

REFERENCES:
patent: 1041156 (1912-10-01), Payne
patent: 3072550 (1963-01-01), Fortescue et al.
patent: 3134515 (1964-05-01), Callahan, Jr.
patent: 3699802 (1972-10-01), Hotla et al.
patent: 3871398 (1975-03-01), Finger
patent: 3950983 (1976-04-01), Slinger
patent: 4051715 (1977-10-01), Ledeen et al.
patent: 4187716 (1980-02-01), Simpson
patent: 4216821 (1980-08-01), Robin
patent: 4338812 (1982-07-01), Lindgren

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