DEVICE FOR CLEANING HEAT EXCHANGE TUBES OF A STEAM GENERATOR OF A NUCLEAR POWER PLANT
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United States of America Patent
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Issued Date -
Oct 12, 2023
app pub date -
Nov 27, 2020
filing date -
Sep 23, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to cleaning of tube bundle of NPP steam generator. The device for cleaning heat exchange tubes of NPP steam generator comprising a manipulator, which is installed to be moved and fixed in a vertical corridor between bundles of heat exchange tubes; a nozzle that is installed on the manipulator ad is in the form of a head of injectors connected to a pipeline for supplying high-pressure water jets; and means for remote control and video monitoring, wherein the manipulator is equipped with a body, which is installed on a guiding mounting frame and is connected to a base; a drive for main rotational movement located on the body; a post which is connected to the body and is in the form of a hollow column; a drive for auxiliary movement which is fixed on the post, an elbow which is connected to the post and is in the form of a tube having a gear rack, and an elbow of actuating units and a coordinate head. The technical result is a shorter cleaning time and more reliable removal of deposits.
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