Steam generator heat transfer tube ultrasonic shot blasting machine tool and shot blasting method thereof

Abstract

The invention discloses a steam generator heat transfer tube ultrasonic shot blasting machine tool and a shot blasting method thereof. The steam generator heat transfer tube ultrasonic shot blasting machine tool comprises a machine tool body, a console, a transmission mechanism, an ultrasonic shot blasting mechanism and a heat transfer tube fixing mechanism, wherein the console includes a controller and an operation interface, the controller is connected with a power source of the machine tool body, and the operation interface is connected with the controller; the transmission mechanism includes a first driving motor and a second driving a motor, a first lead screw, two first guide rails, a first supporting platform, a supporting arm and a connecting rod; and the ultrasonic shot blasting mechanism includes an ultrasonic generator and an impact gun, and the heat transfer tube fixing mechanism includes a platform frame and a heat transfer tube fixator. According to the steam generator heat transfer tube ultrasonic shot blasting machine tool and the shot blasting method thereof, the problems that the existing heat transfer tube shot blasting treatment is low in efficiency and high incost, and the shot blasting treatment on the inner wall surface of a heat transfer tube is not in place are solved.

Description

technical field [0001] The invention relates to the technical field of nuclear engineering, in particular to an ultrasonic shot peening machine tool and a shot peening method for a steam generator heat transfer tube. Background technique [0002] The steam generator is the key equipment of the nuclear power plant. The heat transfer tube is the key component of the steam generator. There are nearly ten thousand tiny heat transfer tubes distributed on the tube sheet with a small gap in the steam generator. Inside the tube, the high-temperature and high-pressure primary side water passes through the heat transfer tube to exchange heat with the external secondary side water. During the operation of the steam generator, the heat transfer tube is subjected to high temperature, high pressure and alternating loads, which is prone to stress corrosion , and then produce circumferential and axial cracks until the problem of failure due to damage and leakage. As long as one heat transfe...

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Problems solved by technology

[0003] The object of the present invention is to provide a steam generator heat transfer tube ultrasonic shot peening machine tool and its shot peening method with high shot peening treatment efficiency, high precision, convenient operation and low shot peening treatment cost to solve the existing problems The shot peening treatment of the inner wall of the heat transfer tube is difficult, the efficiency is low, the cost is high, and the shot peening treatment of the inner wall of the heat transfer tube is not in place

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