METHOD AND APPARATUS FOR TESTING LEAKAGE OF PIPE PASSAGE

METHOD AND APPARATUS FOR TESTING LEAKAGE OF PIPE PASSAGE

A method for testing leakage of a pipe passage employs a flow rate of gas used in testing supplied to the inside of a pipe passage undergoing testing hermetically sealed on one side while detecting flow rate with a flow measuring device and pressure with a pressure detector, and detecting temperatur...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: UEJI YUTAKA, NAGANO KAZUHIRO, HATANO MASAYUKI, KURAMOCHI MICHIO, KAWADA KOJI, YASUMOTO NAOFUMI, KINDAI YOSHIYUKI, MORIMOTO AKIHIRO, IKEDA NOBUKAZU, KOHNO GISUKE, HON'IDEN TERUO, WADA TOSHIAKI
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:A method for testing leakage of a pipe passage employs a flow rate of gas used in testing supplied to the inside of a pipe passage undergoing testing hermetically sealed on one side while detecting flow rate with a flow measuring device and pressure with a pressure detector, and detecting temperature of the gas used, and inputting the detected values of pressure, flow rate and temperature into a computation treatment apparatus, and internal capacity VL of the pipe passage is computed as VL=(supplied flow rate Qxpressure applied time Deltat)/(pressure rise value DeltaP2), and next, the volume QL leaked from the pipe passage is computed as QL=(pressure drop value DeltaP2'xinternal capacity VL)/(pressure drop time Deltat').