| 摘要 |
PURPOSE: A supersonic wave tester for testing a sleeved-tube of a vapor generator in a nuclear electric power generation is provided to prevent the operation stop of a nuclear electric power generation equipment by performing automatically a test for a high radiation region. CONSTITUTION: A supersonic wave tester for testing a sleeved-tube of a vapor generator in a nuclear electric power generation comprises a supersonic wave probe(12), an upper/lower support bar(24,24'), a wire(23), an upper/lower flex centering member(15,15'), a flex pipe(20), a push puller(21), a water-supply/exhaust hole(18), and a rubber packing(16). The supersonic wave probe(12) is installed inside a cylinder-shaped wedge(17). The upper/lower support bar(24,24') supports the cylinder-shaped wedge(17). The wire(23) has a high tension and rotates the cylinder-shaped wedge(17). The upper/lower flex centering member(15,15') is connected with the upper/lower support bar(24,24') by a connection bar(24''). The flex pipe(20) is connected with the connection bar(24''). The push puller(21) moves the flex pipe(20) to an upper or a lower direction. The water-supply/exhaust hole(18) supplies water between a sleeved tube(11) and the wedge(17). The rubber packing(16) is installed on the flex pipe(20).
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