Disclosed is nuclear power plant pump impeller size measuring tool

• Main Authors: ZHAO QIANG, ZHAO ZIYAN, LI YUE, MOU YANG, FU SIMING, SONG SHAOFU, ZHANG DI, ZHAO YANFENG, ZHU JIADONG, JIANG WEI, LIN GUOMIN, HUANG XIANKANG, ZHU XI
• Format: Patent
• Language: Chinese; English
• Published: 17.03.2020
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The utility model relates to the technical field of nuclear power maintenance. The invention particularly discloses a nuclear power plant pump impeller size measuring tool. By recording the initial position measurement value of the dial indicator and then manually turning the rotary table, the impeller to be measured is made to rotate with the shaft as the center, the numerical values of all the positions of the impeller to be measured are measured and recorded respectively, the size and form and position deviation of all the positions of the impeller to be measured are obtained through calculation, and whether the use requirement is met or not is judged according to the deviation value. The measuring tool provided by the utility model can realize size and form and position deviation measurement during pump impeller spare part acceptance and impeller key size and gap control during pump preventive maintenance, improves maintenance efficiency, shortens maintenance period, reduces maintenance cost and ensures m