DIAGNOSIS DEVICE AND DIAGNOSIS METHOD FOR VERTICAL PUMP

PROBLEM TO BE SOLVED: To provide a diagnosis device for a vertical pump capable of quantitatively and accurately estimating the wear of a bearing, without having to bore a hole. SOLUTION: This device is installed on either a lifting pipe 3 or a casing of the vertical pump 1 and is provided with an u...

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Bibliographic Details
Main Authors OZAKI KENJI, UHARA YOSHIHIKO, WATABE YUKIO, ARAKAWA KATSUHIRO, OMORI SHUICHI, HIKUMA KOJI, TEZUKA KENICHI
Format Patent
LanguageEnglish
Published 03.10.2002
Edition7
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a diagnosis device for a vertical pump capable of quantitatively and accurately estimating the wear of a bearing, without having to bore a hole. SOLUTION: This device is installed on either a lifting pipe 3 or a casing of the vertical pump 1 and is provided with an ultrasonic wave vibration meter 16 measuring vibration of the rotary shaft 7, at a position remote from a bearing part 9 bearing the rotation shaft 7 of the vertical pump 1, a shaft vibration calculation means 18 for calculating shaft vibration value at the bearing part 9, based on the measured vibration of the shaft, and a wear estimation means 18 estimating wear of the bearing part 9, based on the calculated shaft vibration value.
Bibliography:Application Number: JP20010088028