Method for tracing leaks in the closed or half-open cooling syst

Details Method for tracing leaks in the closed or half-open cooling syst Method for tracing leaks in the closed or half-open cooling syst

1997-09-29

1999-08-24

Brock, Michael

Measuring and testing

With fluid pressure

Leakage

165 111, G01M 320

Patent

active

059426780

ABSTRACT:
In the case of a method for tracing leaks in the closed or half-cooling system of a gas turbine installation, the parts of the gas turbine installation to be cooled being cooled by means of a cooling fluid (15) other than air, and the cooling fluid (15) flowing in a special cooling fluid circuit (16), and the leak in the cooling system leading to the cooling fluid (15), entering the hot gas channel of the gas turbine (3), samples are taken from the exhaust gas (10) from the gas turbine and concentration measurements, preferably of the cooling fluid (15), are carried out on these samples. The sample taking and concentration measurement may be carried out continuously or periodically. The concentration measurement results are passed to an alarm or a protection system (21) by means of which overheating of inadequately cooled parts of the turbine (3) is prevented.

REFERENCES:
patent: 4373379 (1983-02-01), Obara et al.
patent: 4574619 (1986-03-01), Castellant et al.
patent: 4918975 (1990-04-01), Voss
patent: 5070723 (1991-12-01), Tsou et al.
patent: 5492004 (1996-02-01), Berg et al.
"Kuhleinrichtungen fur wasserstoff- und eassergekuhlte Turbogeneratoren", ABB Technik Aug. 1991, pp. 21-28.
Krafttfahr Technisches Taschenbuch, Robert Bosch GmbH, 1995, pp. 490-500.
Thermische Turbomaschinen, Traupel, 1988, p. 84.

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