Prestressed concrete pressure vessel

    公开(公告)号:US3568384A

    公开(公告)日:1971-03-09

    申请号:US3568384D

    申请日:1968-06-27

    摘要: A SUBSTANTIALLY CYLINDRICAL PRESSURE VESSEL HAS AT LEAST ONE REMOVABLE END STRUCTURE SO AS TO PROVIDE AN OPENING WHICH PRACTICALLY CORRESPONDS IN DIAMETER TO THE INTERIOR OF THE VESSEL. THE REMOVABLE END STRUCTURE COMPRISES FROM THE INTERIOR TO THE EXTERIOR OF THE VESSEL IN THE AXIAL DIRECTION AN OUTWARDLY-FLARED BEARING FACE FORMED ON A CORNICE OF THE INTERNAL VESSEL WALL, A REMOVABLE SLAB TIGHTLY APPLIED AGAINST THE BEARING FACE, A FLARED ABUTMENT FACE FORMED IN THE INTERNAL VESSEL WALL AND AN ASSEMBLY OF WEDGE-SHAPED ELEMENTS EACH OCCUPYING AN ANGULAR SECTOR AND FORCIBLY APPLIED AGAINST THE ABUTMENT FACE. THE REMOVABLE SLAT IS APPLIED AGAINST THE BEARING FACE WITH VARIABLE PRESSURE BY MEANS OF FIRST JACKS MOUNTED BETWEEN THE SLAB AND THE WEDGE ASSEMBLY. THE WEDGE ASSEMBLY IS APPLIED AGAINST THE ABUTMENT FACE EITHER BY MEANS OF SECOND JACKS MOUNTED BETWEEN THE CORNICE AND THE ASSEMBLY OR BY MEANS OF TENSIONED CABLES PASSED THROUGH THE CYLINDER WALL AT RIGHT ANGLES TO THE ABUTMENT FACE.

    Prestressed concrete pressure vessel for nuclear reactors
    2.
    发明授权
    Prestressed concrete pressure vessel for nuclear reactors 失效
    用于核反应堆的预制混凝土压力容器

    公开(公告)号:US3568385A

    公开(公告)日:1971-03-09

    申请号:US3568385D

    申请日:1968-07-01

    摘要: AT LEAST ONE OF THE ENDS OF THE PRESSURE VESSEL IS PIERCED BY AN OPENING DELIMITED BY TWO SUCCESSIVE FRUSTOCONICAL FACES WHICH ARE FLARED TOWARDS THE EXTERIOR. IN ORDER TO CLOSE THE OPENING, A SLAB OR CORRESPONDING SHAPE IS APPLIED AGAINST THE FIRST FACE OR INTERNAL FACE AND A SERIES OF WEDGE-SHAPED ELEMENTS ARE CLAMPED BOTH AGAINST SAID FIRST FACE AND AGAINST THE SECOND FACE OF THE OPENING BY MEANS OF RECTILINEAR CABLES WHICH ARE PASSED RIGHT THROUGH THE WEDGE ELEMENTS AND THE PRESSURE VESSEL WALL. PERIPHERAL PRESTRESSING CABLE SERVE TO COMPLETE THE FORCIBLE APPLICATION OF THE SLAB AND WEDGE ELEMENTS AGAINST THE

    VESSEL CYLINDER SO AS TO FORM A TIGHT PRESSURE-RESISTANT ASSEMBLY. NO RELATIVE DISPLACEMENT BETWEEN THE DIFFERENT COMPONENTS NEED BE FEARED AT THE TIME OF APPROACH TO FULL PRESSURE WITHIN THE PRESSURE VESSEL OR DURING OPERATION OF THE REACTOR.

    FOUNDATION STRUCTURE OF REACTOR CONTAINMENT VESSEL
    8.
    发明申请
    FOUNDATION STRUCTURE OF REACTOR CONTAINMENT VESSEL 审中-公开
    反应堆容器船舶基础结构

    公开(公告)号:US20140219410A1

    公开(公告)日:2014-08-07

    申请号:US14127593

    申请日:2012-10-03

    IPC分类号: G21C13/024

    摘要: In the foundation structure of a reactor containment vessel, a lower foundation plate provided on a ground, an upper foundation plate provided over the lower foundation plate, a base isolation device inserted between the upper foundation plate and the lower foundation plate, and a reactor containment vessel provided on the upper foundation plate are provided. The ends of reverse U-shaped tendons serving as the lower structures of the reactor containment vessel are fixed to the lower surface of the upper foundation plate through the upper foundation plate, which makes it possible to simplify a structure and reduce a construction cost.

    摘要翻译: 在反应堆容纳容器的基础结构中,设置在地面上的下基板,设置在下基板上的上基板,插入在上基板和下基板之间的基座隔离装置,以及反应堆容纳 提供在上基板上的容器。 用作反应堆安全壳的下部结构的反向U形筋的端部通过上基板固定在上基板的下表面上,这使得可以简化结构并降低施工成本。

    Boiling water reactor with compact containment and simplified safety
systems
    9.
    发明授权
    Boiling water reactor with compact containment and simplified safety systems 失效
    沸腾水反应堆具有紧凑的安全壳和简化的安全系统

    公开(公告)号:US5577085A

    公开(公告)日:1996-11-19

    申请号:US428810

    申请日:1995-04-24

    摘要: A nuclear reactor having a pressure vessel which is open at the top. The open top of the pressure vessel is closed by a steel dome. A containment, which is open at the top, extends upward from and is joined to the top of the pressure vessel and has an open containment head at the top thereof. The open top of the containment is closed by a steel dome, thereby forming a containment well bounded laterally by the containment, on the bottom by the vessel closure and on the top by the containment closure. The pressure vessel can be a steel-lined prestressed concrete vessel, while the containment is formed by an extension of the prestressed concrete vessel. Alternatively, the pressure vessel and the containment are parts of a unitary steel vessel. Isolation valves are installed on each penetration pipeline to isolate the system in the event of a loss-of-coolant accident. An isolation valve located external to the pressure vessel and the portion of the pipeline between that external isolation valve and the interior of the pressure vessel are encased in guard piping. The space between the pipeline and the guard piping is pressurized and monitored to detect any leak in either the pipeline or the guard piping.

    摘要翻译: 具有在顶部开口的压力容器的核反应堆。 压力容器的开口顶部由钢制圆顶封闭。 在顶部开口的容纳物从压力容器的顶部向上延伸并连接到压力容器的顶部,并且在其顶部具有敞开的容纳头。 容器的敞开的顶部由钢制圆顶封闭,从而通过容器形成横向封闭的容器,底部由容器封闭件形成,顶部由容器封闭件形成。 压力容器可以是钢衬里的预应力混凝土容器,而容器由预应力混凝土容器的延伸部分形成。 或者,压力容器和容器是单一钢容器的部件。 在每个穿透管道上安装有隔离阀,以便在发生冷却剂损失事故时隔离系统。 位于压力容器外部的隔离阀和该外部隔离阀与压力容器内部之间的管道部分被封装在防护管道中。 管道和保护管道之间的空间被加压和监控,以检测管道或保护管道中的任何泄漏。

    Pressure vessels
    10.
    发明授权
    Pressure vessels 失效
    压力容器

    公开(公告)号:US3794559A

    公开(公告)日:1974-02-26

    申请号:US3794559D

    申请日:1971-07-27

    发明人: DAVIES I BURROW R

    摘要: A concrete pressure vessel having a lined cavity for hot, chemically aggressive liquid disposed within a cooling jacket with a layer of material of high thermal conductivity between the cavity liner and the cooling jacket, the jacket and high thermally conductive layer serving to maintain the temperature of the cavity liner within closely controlled limits and the maximum temperature of the main body of the vessel at an acceptable level, and the jacket and the conductive layer also serving to prevent leakage of liquid from the cavity.