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An apparatus using both for hydraulic expansion and leak test of sleeve for repairing a steam generator tube
An apparatus using both for hydraulic expansion and leak test of sleeve for repairing a steam generator tube
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机译:一种用于液压膨胀和套管泄漏测试的设备,用于修理蒸汽发生器管
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摘要
PURPOSE: An apparatus is provided to hydraulically expand a sleeve while simultaneously performing a water leakage test for the sleeve by using one mandrill. CONSTITUTION: Upper and lower bladder hoses(24,44) are connected to a main control section. Upper and lower bladders(22,42) receive high-pressurized water through the upper and lower bladder hoses(24,44). A water feeding pipe(32) is connected between the upper and lower bladders(22,42) so as to supply high-pressurized water into a space formed between an inner wall of an electric heating pipe and the upper and lower bladders(22,42). A position setting device is provided to move the water feeding pipe(32) and the upper and lower bladders(22,42) to a sleeve expanding position, which is set in the electric heating pipe, or to a water leakage testing position, which is set in a sleeve inserted into the electric heating pipe.
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