Rotating moment measurement and verification device used for steam generator heat transfer tube mechanical plugging tube

Abstract

The invention relates to a rotating moment measurement and verification device used for a steam generator heat transfer tube mechanical plugging tube. The rotating moment measurement and verificationdevice comprises a mechanical shell, a simulated bolt, a moment sensor and a displayer. The mechanical shell is made of a stainless steel plate, and the upper part is fixedly provided with a special groove for placing a mechanical roller bulging tube device. The simulated bolt and the displayer are fixedly arranged in the mechanical shell. The moment sensor is arranged in the simulated bolt. The moment technical parameters on the simulated bolt are displayed on the displayer through the moment sensor. The simulated bolt, the moment sensor and the device shell of the rotating moment measurementand verification device are organically combined together so that the device shape is small and portable, operation is easy, the rotating moment measurement accuracy is high, the real-time performance and the repeatability are great, the deviation of the measured value of each of five continuous times of verification of the rotating moment is not over 0.5Nm, and thus the requirements of moment measurement and verification of the nuclear power steam generator heat transfer tube mechanical roller bulging plugging tube can be met.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant operation detection, in particular to a rotational torque measurement and calibration device for mechanical plugging of heat transfer tubes of steam generators. Background technique [0002] After the steam generator heat transfer tube is damaged, the usual maintenance method is to block the tube, that is, install plugs at both ends of the heat transfer tube to make the heat transfer tube out of operation. At present, most domestic nuclear power steam generator heat transfer tubes adopt mechanical Pipe plugging method, there is a key technical parameter index in the mechanical roller expansion pipe plugging method, namely the torque output value and output time, the torque measurement and calibration device is to verify whether the rotation output torque and output time of the mechanical roller expansion pipe plugging device meet the requirements Plugging process technical requirements...

AI Technical Summary

Problems solved by technology

[0003] At present, the rotational torque measurement and calibration devices used in nuclear power plant evaporator heat transfer tube plugging rely heavily on imports. The large size and specifications are not easy to put into the small steam generator heat transfer tube. The structure is complex and the integration is poor. The price is expensive, the delivery period is long, and the supply is unstable, so it is urgent to design and develop a rotational torque measurement and calibration device suitable for mechanical plugging of steam generator heat transfer tubes for nuclear power plants in my country

Images