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    DOUBLE-LOOP NUCLEAR REACTOR STEAM GENERATING PLANT HAVING A BLOWDOWN AND DRAINAGE SYSTEM
    52.
    发明公开
    DOUBLE-LOOP NUCLEAR REACTOR STEAM GENERATING PLANT HAVING A BLOWDOWN AND DRAINAGE SYSTEM 审中-公开

    公开(公告)号：EP3734150A1

    公开(公告)日：2020-11-04

    申请号：EP17936557.2

    申请日：2017-12-29

    申请人： Joint Stock Company "Atomenergoproekt"

    发明人： DOROKHIN, Konstantin Vladimirovich ,  SHESTAKOV, Andrei Viktorovich

    IPC分类号： F22B37/52 ,  F28G9/00 ,  G21C1/00

    摘要： The proposed double-loop nuclear reactor steam generating plant having a blowdown and drainage system is implemented on the basis of a closed loop without the conventional blowdown tanks and is designed for maximum pressure of the working fluid in the steam generators. Steam generator blowdown water is brought together into a single line, cooled in a regenerative heat exchanger then in a blowdown and drainage aftercooler, and removed from the containment building. Outside the containment building, the steam generator blowdown water is fed for treatment into a system for the specialized treatment of steam generator blowdown water, designed for maximum pressure of the working fluid in the steam generators. After treatment, the blowdown water is returned to the containment building and, via the regenerative heat exchanger, to feed pipes of each steam generator. The technical result is an increase in steam generator blowdown flow, which leads to the accelerated normalization of the water chemistry conditions even in the event of significant deviations and, as a result, to an increase in the working life of each steam generator and of the steam generating plant as a whole, and also leads to a reduction in energy losses during the return of the treated blowdown water to the second loop, while at the same time rendering the system autonomous due to the absence of a link to turbine hall equipment.

    APPARATUS AND METHOD FOR CUTTING AN ELECTRICALLY CONDUCTIVE TUBE AND ELECTRODE THEREFOR
    59.
    发明公开
    APPARATUS AND METHOD FOR CUTTING AN ELECTRICALLY CONDUCTIVE TUBE AND ELECTRODE THEREFOR 审中-公开

    公开(公告)号：EP3603866A1

    公开(公告)日：2020-02-05

    申请号：EP19189672.9

    申请日：2019-08-01

    申请人： Univerza V Ljubljani ,  NUMIP Engineering, Construction, Maintenance and Production Ltd.

    发明人： Valentincic, Jo ko ,  Sabotin, Izidor ,  Resnik, Matic ,  Dre ar, Pavel ,  Matja , Nejc ,  Jerman, Marko ,  Lebar, Andrej ,  Pleterski, Matej

    IPC分类号： B23H9/00 ,  B23P19/02 ,  F22B37/00 ,  B23H1/04

    摘要： An apparatus for cutting an electrically conductive tube comprises:
    an electrode adapted to be introduce into a tube such that a longitudinal axis of the electrode is at least in substance arranged in parallel to or coincident with a central axis of the tube,
    an electric voltage source for providing an electric voltage between the electrode and the tube, in particular for generating electric discharges between the electrode and the tube section,
    an electric motor for rotating the electrode around the longitudinal axis,
    a coupling element for coupling the electrode to the motor, the coupling element being adapted to transmit a rotational movement of a shaft of the motor to the electrode such that the electrode rotates around its longitudinal axis,
    a gas passage for introducing gas into the interior of the tube, the gas passage comprising a straight gas pipe arranged along the longitudinal axis between the motor and the electrode,
    the coupling element comprises a connecting element which extends along the longitudinal axis through the inside of the gas pipe, the connecting element having a first end attached to the motor shaft and a second end held by the gas pipe.