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1.发明授权Internal passive water recombiner/hydrogen peroxide decomposer for a boiling water reactor 失效用于沸水反应器的内部被动水重组器/过氧化氢分解器
公开(公告)号：US5287392A
公开(公告)日：1994-02-15
申请号：US981667
申请日：1992-11-25
IPC分类号： G21D1/00 , B01J35/04 , G21C17/022 , G21C19/317 , G21D3/08
CPC分类号： G21C17/0225 , B01J35/04 , G21C19/317 , G21Y2002/501 , G21Y2004/30
摘要： An internal passive catalytic device operating in the water phase of a boiling water reactor vessel downstream of the steam/water separator location. The device consists of catalytic material arranged and situated such that all (except perhaps a small leakage flow) water phase exiting the water/steam separator device flows over the surface of the catalytic material. The catalytic surfaces decompose dissolved hydrogen peroxide into water and oxygen. When the substrate of the catalytic material is plated or alloyed with a water recombination catalyst such as a noble metal, the catalytic surfaces also catalyze the recombination of dissolved hydrogen and oxygen molecules into water. The passive catalytic device is constructed to ensure that the pressure drop of the reactor water across the device is very small. The device includes a stainless steel flow-through housing packed with catalytic material, which could take the form of tangled wire or strips, crimped ribbon, porous sintered metal composite or any other structure having a high surface area-to-volume ratio.
摘要翻译： 在蒸汽/水分离器位置下游的沸水反应器容器的水相中操作的内部被动催化装置。 该装置由布置和定位的催化材料组成，使得离开水/蒸汽分离器装置的所有（除了可能是小的泄漏流）水相流过催化材料的表面。 催化表面将溶解的过氧化氢分解成水和氧气。 当催化材料的基底与诸如贵金属的水复合催化剂电镀或合金化时，催化表面还催化溶解的氢和氧分子与水的重组。 被动催化装置被构造成确保反应堆水穿过装置的压降非常小。 该装置包括填充有催化材料的不锈钢流通壳体，其可以采取缠结线或条带，卷曲带，多孔烧结金属复合材料或具有高表面积 - 体积比的任何其它结构的形式。
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公开(公告)号：US4137454A
公开(公告)日：1979-01-30
申请号：US773794
申请日：1977-03-02
摘要： In pulsed X-ray fluoroscopy in which the fluoroscopic screen receiving the X-rays is subsequently observed by a video recording system incorporating an image intensifier, the quality of the video image is impaired because of electrical noise and phosphor flare. The image quality is improved by reducing the gain of the video system synchronously with the occurrence of each X-ray pulse. In addition, the residual disturbance left on the video output is stabilized by synchronizing the video framing cycle frequency with the X-ray pulse frequency.
摘要翻译： 在其中接收X射线的荧光镜屏幕随后通过并入图像增强器的视频记录系统观察到的脉冲X射线荧光透视中，视频图像的质量由于电噪声和荧光灯耀斑而受损。 通过与每个X射线脉冲的发生同步地减小视频系统的增益来提高图像质量。 此外，通过将视频成帧周期频率与X射线脉冲频率同步，使视频输出残留的残留干扰得以稳定。
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