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Water filling and air exhausting process of the main primary circuit of a nuclear unit, cover for implementation of this process
Water filling and air exhausting process of the main primary circuit of a nuclear unit, cover for implementation of this process
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机译：核单元主一次回路的注水和排气过程，该过程的实施封面
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摘要
The method involves laying a cover (10) e.g. false cover (14), to close a tank (2). Water level of a main circuit (1) is adjusted to a low working zone for communicating air volumes in tubes (7), a pressurizer (8) and the tank. The circuit is set in vacuum by suction of a vacuum pump (11) connected to air vents of the tank and the pressurizer. The circuit is filled until the vacuum set to atmospheric pressure by opening the vents to aspirate water from the circuit in the tubes. The circuit is filled with water until top of the pressurizer continues starting operations of a nuclear unit. Independent claims are also included for the following: (1) a cover i.e. false cover, for implementing a method for filling water into and evacuating air from a main circuit (2) a flange for a cover, comprising sealing units.
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