公开(公告)号：US07285250B2

公开(公告)日：2007-10-23

申请号：US10137449

申请日：2002-05-03

申请人： Shuichi Kanno ,  Hisao Yamashita ,  Tomohiko Miyamoto ,  Shin Tamata ,  Yoshiki Shibano ,  Takeo Komuro ,  Tsugihiro Yukitake ,  Terufumi Kawasaki

发明人： Shuichi Kanno ,  Hisao Yamashita ,  Tomohiko Miyamoto ,  Shin Tamata ,  Yoshiki Shibano ,  Takeo Komuro ,  Tsugihiro Yukitake ,  Terufumi Kawasaki

IPC分类号： B01D50/00 ,  B01D59/50

CPC分类号： B01D53/8662 ,  B01D53/68 ,  B01D53/70 ,  B01D53/8659 ,  Y02C20/30

摘要： In order to prevent exhaust pipe for exhausting perfluorocompound (PFC) decomposition gas after washing from corrosion, a mist separating apparatus is provided at a rear stage of the washing tower for washing the PFC decomposition gas. The corrosion of the exhaust pipe can be prevented by removing the mist from the washed gas.

摘要翻译： 为了防止排气管在从腐蚀中洗涤后排出全氟化合物（PFC）分解气体，在洗涤塔的后段设置有用于清洗PFC分解气体的雾分离装置。 可以通过从洗涤气体中除去雾气来防止排气管的腐蚀。

公开(公告)号：US5513233A

公开(公告)日：1996-04-30

申请号：US272117

申请日：1994-07-07

申请人： Masataka Hidaka ,  Shinichi Kashiwai ,  Yoshinori Saito ,  Terufumi Kawasaki

发明人： Masataka Hidaka ,  Shinichi Kashiwai ,  Yoshinori Saito ,  Terufumi Kawasaki

IPC分类号： G21C15/02 ,  G21C15/00 ,  G21C3/322

CPC分类号： G21C15/02 ,  G21Y2002/201 ,  G21Y2004/302 ,  Y02E30/40

摘要： Improved operability and economy of a nuclear reactor can be obtained by attaining a mixing of the flows of coolant in the lower plenum of the fuel assemblies of the nuclear reactor, a high flow stability of the two-phase flow in the fuel assemblies and a small pressure loss in the core. To achieve this, there is provided a coolant guide tube 60 that communicates with the inside of the fuel support piece 12 inserted in the control rod guide tube and the passage 16, wherein there is formed a coolant guide passage 61 along which coolant descends in the area outside of the coolant guide tube in the fuel assemblies from opening 79. The coolant guide passage along which the coolant descends from the opening is formed in an area outside of the coolant guide tube in the fuel support piece.

摘要翻译： 通过实现核反应堆的燃料组件的下部气室中的冷却剂流的混合，燃料组件中的两相流的高流动稳定性和小的燃料组件的小流量混合，可以获得核反应堆的可操作性和经济性的改善 核心压力损失。 为了实现这一点，提供了一种冷却剂引导管60，其与插入控制棒导管和通道16中的燃料支撑件12的内部连通，其中形成有冷却剂引导通道61，冷却剂引导管 燃料组件中的冷却剂引导管外部的开口79.冷却剂引导通道在冷却剂引导管的外侧形成在燃料支撑件的冷却剂导管的外侧。

公开(公告)号：US5096659A

公开(公告)日：1992-03-17

申请号：US436194

申请日：1989-11-14

申请人： Masataka Hidaka ,  Shigeo Hatamiya ,  Terufumi Kawasaki ,  Toru Fukui ,  Hiroaki Suzuki ,  Yoshiyuki Kataoka ,  Ryuhei Kawabe ,  Michio Murase ,  Masanori Naitoh

发明人： Masataka Hidaka ,  Shigeo Hatamiya ,  Terufumi Kawasaki ,  Toru Fukui ,  Hiroaki Suzuki ,  Yoshiyuki Kataoka ,  Ryuhei Kawabe ,  Michio Murase ,  Masanori Naitoh

IPC分类号： G21C9/004 ,  G21C15/18

CPC分类号： G21C15/18 ,  Y02E30/40

摘要： A reactor containment vessel comprises typically a reactor pressure vessel housed in a dry well of the reactor containment vessel, a vent passage through which steam in the dry well is introduced into coolant accommodated in a pressure suppression chamber of the reactor containment vessel, a closed space formed at a position lower than the level of the normal liquid surface of the coolant, a first passage having an inlet opened into the pressure suppression chamber at a level higher than that of the normal liquid surface of the coolant and an outlet opened into the closed space, and a second passage communicating between the closed space and the dry well through a counter flow preventing arrangement for checking the flow directed toward the closed space, and therefore, noncondensable gas and liquid accumulated in the pressure suppression chamber are discharged into the dry well the pressure in which is higher than that in the pressure suppression chamber by making use of a difference in water head increased due to increase of the liquid while allowing fluid to be condensed to newly flow into the pressure suppression chamber from the dry well so as to be condensed, over a long cooling period after the occurrence of an accident of piping fracture in the reactor containment vessel. Owing to condensation, the pressure in the reactor containment vessel can be reduced, and moreover, fluid can make a natural circulation in a closed circuit passing through the dry well, the pressure suppression chamber and the closed space in order without flowing outside the circuit.

摘要翻译： 反应堆容纳容器通常包括容纳在反应堆容纳容器的干燥井中的反应堆压力容器，将干井中的蒸汽引入容纳在反应堆容纳容器的压力抑制室中的冷却剂的通气通道，封闭空间 形成在低于冷却剂的正常液面的水平的位置处，具有以比冷却剂的通常液面高的水平方向通向压力抑制室的入口的第一通道和敞开的冷却剂出口 空间，以及第二通道，通过用于检查朝向封闭空间的流动的逆流防止装置在封闭空间和干井之间连通，因此积聚在压力抑制室中的不凝结气体和液体被排放到干井中 通过利用差i，其压力高于压力抑制室中的压力 n水头由于液体的增加而增加，同时允许流体冷凝，从干井中新流入压力抑制室，以便在发生管道破裂事故之后的长时间冷却期间冷凝 反应堆安全壳。 由于冷凝，可以减少反应堆容纳容器内的压力，而且，流体可以在通过干井，压力抑制室和封闭空间的闭路中自然循环，而不会流过电路外。

公开(公告)号：US07435394B2

公开(公告)日：2008-10-14

申请号：US10643946

申请日：2003-08-20

申请人： Shuichi Kanno ,  Shin Tamata ,  Shinichi Ichikawa ,  Terufumi Kawasaki ,  Hisao Yamashita

发明人： Shuichi Kanno ,  Shin Tamata ,  Shinichi Ichikawa ,  Terufumi Kawasaki ,  Hisao Yamashita

IPC分类号： B01D50/00

CPC分类号： B01D53/8662 ,  Y02C20/30

摘要： An object of the present invention is to improve the decomposition at low temperatures of perfluorocompounds containing only fluorine as a halogen, such as CF4, C2F6 and the like. In the present invention, a perfluorocompound containing only fluorine as a halogen is brought into contact with a catalyst comprising Al, Ni and W as catalytically active ingredients and comprising a mixed oxide or complex oxide of Ni and Al and a mixed oxide or complex oxide of W and Ni, in the presence of steam or a combination of steam and air at a temperature of 500 to 800° C. to convert the fluorine in the perfluorocompound to hydrogen fluoride. Employment of the catalyst of the present invention improves the decomposition at low temperatures and hence makes it possible to decompose the perfluoro-compound at a high percentage of decomposition at a lower temperature.

摘要翻译： 本发明的一个目的是改进在低温下仅含氟作为卤素的全氟化合物的分解，例如CF 4，C 2 F 6， / SUB>等。 在本发明中，将仅含氟作为卤素的全氟化合物与包含Al，Ni和W的催化剂作为催化活性成分接触，并且包含Ni和Al的混合氧化物或复合氧化物以及混合氧化物或复合氧化物 W和Ni，在蒸汽或蒸汽与空气的组合的存在下，在500〜800℃的温度下，将全氟化合物中的氟转化成氟化氢。 本发明的催化剂的使用改善了低温下的分解，因此可以在较低温度下以高百分比的分解来分解全氟化合物。

公开(公告)号：US20090022642A1

公开(公告)日：2009-01-22

申请号：US12230889

申请日：2008-09-08

申请人： Shuichi Kanno ,  Shin Tamata ,  Shinichi Ichikawa ,  Terufumi Kawasaki ,  Hisao Yamashita

发明人： Shuichi Kanno ,  Shin Tamata ,  Shinichi Ichikawa ,  Terufumi Kawasaki ,  Hisao Yamashita

IPC分类号： B01D53/70 ,  B01J23/85

CPC分类号： B01D53/8662 ,  Y02C20/30

摘要： An object of the present invention is to improve the decomposition at low temperatures of perfluorocompounds containing only fluorine as a halogen, such as CF4, C2F6 and the like. In the present invention, a perfluorocompound containing only fluorine as a halogen is brought into contact with a catalyst comprising Al, Ni and W as catalytically active ingredients and comprising a mixed oxide or complex oxide of Ni and Al and a mixed oxide or complex oxide of W and Ni, in the presence of steam or a combination of steam and air at a temperature of 500 to 800° C. to convert the fluorine in the perfluorocompound to hydrogen fluoride. Employment of the catalyst of the present invention improves the decomposition at low temperatures and hence makes it possible to decompose the perfluoro-compound at a high percentage of decomposition at a lower temperature.

摘要翻译： 本发明的一个目的是改进在低温下仅含氟作为卤素的氟化物如CF4，C2F6等的分解。 在本发明中，将仅含氟作为卤素的全氟化合物与包含Al，Ni和W的催化剂作为催化活性成分接触，并且包含Ni和Al的混合氧化物或复合氧化物以及混合氧化物或复合氧化物 W和Ni，在蒸汽或蒸汽与空气的组合的存在下，在500至800℃的温度下，将全氟化合物中的氟转化为氟化氢。 本发明的催化剂的使用改善了低温下的分解，因此可以在较低温度下以高百分比的分解来分解全氟化合物。

公开(公告)号：US20090142244A1

公开(公告)日：2009-06-04

申请号：US12367048

申请日：2009-02-06

申请人： Shuichi Kanno ,  Shin Tamata ,  Shinichi Ichikawa ,  Terufumi Kawasaki ,  Hisao Yamashita

发明人： Shuichi Kanno ,  Shin Tamata ,  Shinichi Ichikawa ,  Terufumi Kawasaki ,  Hisao Yamashita

IPC分类号： C01B7/20

CPC分类号： B01D53/8662 ,  Y02C20/30

摘要： An object of the present invention is to improve the decomposition at low temperatures of perfluorocompounds containing only fluorine as a halogen, such as CF4, C2F6 and the like. In the present invention, a perfluorocompound containing only fluorine as a halogen is brought into contact with a catalyst comprising Al, Ni and W as catalytically active ingredients and comprising a mixed oxide or complex oxide of Ni and Al and a mixed oxide or complex oxide of W and Ni, in the presence of steam or a combination of steam and air at a temperature of 500 to 800° C. to convert the fluorine in the perfluorocompound to hydrogen fluoride. Employment of the catalyst of the present invention improves the decomposition at low temperatures and hence makes it possible to decompose the perfluoro-compound at a high percentage of decomposition at a lower temperature.

摘要翻译： 本发明的一个目的是改进在低温下仅含氟作为卤素的氟化物如CF4，C2F6等的分解。 在本发明中，将仅含氟作为卤素的全氟化合物与包含Al，Ni和W的催化剂作为催化活性成分接触，并且包含Ni和Al的混合氧化物或复合氧化物以及混合氧化物或复合氧化物 W和Ni，在蒸汽或蒸汽与空气的组合的存在下，在500至800℃的温度下，将全氟化合物中的氟转化为氟化氢。 本发明的催化剂的使用改善了低温下的分解，因此可以在较低温度下以高百分比的分解来分解全氟化合物。