Heat-retarding closure system for pressure relief openings of
partitions, in nuclear reactor buildings
    23.
    发明授权
    Heat-retarding closure system for pressure relief openings of partitions, in nuclear reactor buildings 失效
    用于核反应堆建筑物隔板压力释放开口的阻热封闭系统

    公开(公告)号:US4495147A

    公开(公告)日:1985-01-22

    申请号:US227507

    申请日:1981-01-22

    摘要: Heat retarding closure system for partitions having pressure relief openings formed therein especially in nuclear reactor buildings where main coolant nozzles of a reactor pressure vessel penetrate a biological shield, including lightweight construction closure elements having a side facing the reactor and anchors for holding the closure elements, the closure elements being pushable out of the anchors by an overpressure in a given pressure difference direction on the reactor side, and an outer sealing blowout skin, the closure elements being in the form of heat-retarding cassette inserts having a front surface with a peripheral shearing edge formed thereon resting against the blowout skin, and the blowout skin having a given thickness in the given pressure difference direction enabling the cassette insert to shear off the blowout skin and be pushed out of the anchors when a given pressure difference is at least reached.

    摘要翻译: 具有形成在其中的压力释放开口的隔板的阻热闭合系统,特别是在反应堆压力容器的主要冷却剂喷嘴穿过生物屏蔽的核反应堆建筑物中,包括具有面向反应器的一侧的轻质结构闭合元件和用于保持闭合元件的锚固件, 闭合元件可以通过在反应器侧上的给定压力差方向上的过压以及外部密封喷出皮肤而被推出锚固件,封闭元件是具有前表面与周边的阻热盒式插件的形式 形成在其上的剪切边缘保持在井喷皮肤上,并且喷出皮肤在给定的压力差方向上具有给定的厚度,使得当插入压力差至少达到给定的压力差时,盒式插入件能够剪断掉喷出的皮肤并被推出锚定件 。

    Shock absorber system for nuclear reactor ice condenser compartment
    24.
    发明授权
    Shock absorber system for nuclear reactor ice condenser compartment 失效
    用于核反应堆冰冷凝器室的减震器系统

    公开(公告)号:US4173512A

    公开(公告)日:1979-11-06

    申请号:US459450

    申请日:1974-04-09

    摘要: A shock absorber system was designed to absorb the energy imparted to doors in a nuclear reactor ice condenser compartment as they swing rapidly to an open position. Each shock absorber which is installed on a wall adjacent each door is large and must absorb up to about 40,000 foot pounds of energy. The basic shock absorber component comprises foam enclosed in a synthetic fabric bag having a volume about twice the foam volume. A stainless steel knitted mesh bag of the same volume as the fabric bag, contains the fabric bag and its enclosed foam. To protect the foam and bags during construction activities at the reactor site and from the shearing action of the doors, a protective sheet metal cover is installed over the shock absorber ends and the surface to be contacted by the moving door. With the above shock absorber mounted on a wall behind each door, as the door is forcibly opened by steam pressure and air resulting from a pipe break in the reactor compartment, it swings at a high velocity into contact with the shock absorber, crushes the foam and forces it into the fabric bag excess material thus containing the foam fragmented particles, and minimizes build-up of pressure in the bag as a result of the applied compressive force.

    摘要翻译: 设计了一种减震器系统,用于吸收在核反应堆冰冷凝器舱内迅速摆动至打开位置时施加给门的能量。 安装在每个门附近的墙壁上的每个减震器是大的,并且必须吸收高达约4万英尺磅的能量。 基本的减震器部件包括封闭在具有约两倍泡沫体积的体积的合成织物袋中的泡沫。 与织物袋相同体积的不锈钢针织网袋包含织物袋及其封闭的泡沫。 为了在反应堆场所的施工活动期间和门的剪切作用下保护泡沫和袋子,在缓冲器端部和被移动的门接触的表面上安装有保护金属板盖。 将上述减震器安装在每扇门后面的一个墙壁上,当门被反应室内管道破裂所产生的蒸汽压力和空气强行打开时,它以高速摆动与缓冲器接触,将泡沫压碎 并将其压入织物袋过剩的材料中,从而包含泡沫碎片颗粒,并且由于施加的压缩力,使袋中的压力积聚最小化。

    Rupture disc
    25.
    发明授权
    Rupture disc 失效
    破裂片

    公开(公告)号:US4064003A

    公开(公告)日:1977-12-20

    申请号:US671912

    申请日:1976-03-29

    申请人: Robert G. Newton

    发明人: Robert G. Newton

    IPC分类号: F22B1/06 G21C9/00 G21C9/008

    摘要: The intermediate heat transport system for a sodium-cooled fast breeder reactor includes a device for rapidly draining the sodium therefrom should a sodium-water reaction occur within the system. This device includes a rupturable member in a drain line in the system and means for cutting a large opening therein and for positively removing the sheared-out portion from the opening cut in the rupturable member. According to the preferred embodiment of the invention the rupturable member includes a solid head seated in the end of the drain line having a rim extending peripherally therearound, the rim being clamped against the end of the drain line by a clamp ring having an interior shearing edge, the bottom of the rupturable member being convex and extending into the drain line. Means are provided to draw the rupturable member away from the drain line against the shearing edge to clear the drain line for outflow of sodium therethrough.

    摘要翻译: 用于钠冷快速增殖反应器的中间热传输系统包括用于在系统内发生钠 - 水反应时迅速排出钠的装置。 该装置包括在系统中的排水管线中的可破裂构件,以及用于在其中切割大开口的装置,并且用于将剪切出的部分从可断裂构件中的开口中有效地移除。 根据本发明的优选实施例,可破裂构件包括位于排水管的端部处的实心头部,其具有沿其周边延伸的边缘,边缘通过夹紧环夹紧,该夹紧环具有内部剪切边缘 可破坏构件的底部凸出并延伸到排水管线中。 提供装置以将可破裂构件从排出管线拉离剪切边缘以清除排出管线以便钠流出。

    Dual-alloy pyrotechnic-actuated valve assembly

    公开(公告)号:US10520100B2

    公开(公告)日:2019-12-31

    申请号:US15391931

    申请日:2016-12-28

    IPC分类号: F16K17/40 G21C9/008 B23P15/00

    摘要: A pyrotechnic-actuated valve assembly may include an insert body having an inlet, an outlet, and a flow path extending from the inlet to the outlet. The insert body is formed of a first alloy. A shear structure is bonded to the outlet of the insert body so as to close the flow path. The shear structure is formed of a second alloy. The second alloy of the shear structure is bonded to the first alloy of the insert body so as to form a hermetic seal. The dual-alloy nature of the valve assembly allows a relatively clean shearing of the shear structure during actuation, thus reducing or preventing the occurrence of deformation and/or material fragments in the flow path.

    DEPRESSURIZATION AND COOLANT INJECTION SYSTEMS FOR VERY SIMPLIFIED BOILING WATER REACTORS

    公开(公告)号:US20190057785A1

    公开(公告)日:2019-02-21

    申请号:US15677380

    申请日:2017-08-15

    IPC分类号: G21C9/008 G21C15/18

    摘要: Simplified nuclear reactors include depressurization systems or gravity-driven injection systems or both. The systems depressurize and cool the reactor without operator intervention and power. An underground containment building may be used with the depressurization and injection systems passing through the same from above ground. Depressurization systems may use a rupture disk, relief line, pool, and filter to open the reactor and carry coolant away for condensation and exhausting. Injection systems may use a coolant tank above the nuclear reactor to inject liquid coolant by gravity into the reactor through an injection line and valve. The rupture disk and valve may be integral with the reactor and use penetration seals where systems pass through containment. Rupture disks and valves can actuate passively, at a pressure setpoint or other condition, through fluidic controls, setpoint failure, etc. The depressurization system and injection system together feed-and-bleed coolant through the reactor.

    DUAL-ALLOY PYROTECHNIC-ACTUATED VALVE ASSEMBLY

    公开(公告)号:US20180180188A1

    公开(公告)日:2018-06-28

    申请号:US15391931

    申请日:2016-12-28

    IPC分类号: F16K17/40 G21C9/008 B23P15/00

    摘要: A pyrotechnic-actuated valve assembly may include an insert body having an inlet, an outlet, and a flow path extending from the inlet to the outlet. The insert body is formed of a first alloy. A shear structure is bonded to the outlet of the insert body so as to close the flow path. The shear structure is formed of a second alloy. The second alloy of the shear structure is bonded to the first alloy of the insert body so as to form a hermetic seal. The dual-alloy nature of the valve assembly allows a relatively clean shearing of the shear structure during actuation, thus reducing or preventing the occurrence of deformation and/or material fragments in the flow path.