专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20140133619A1 EXTENDED OPERATING CYCLE FOR PRESSURIZED WATER REACTOR 审中-公开
标题翻译：用于加压水反应器的扩展操作循环
公开(公告)号：US20140133619A1
公开(公告)日：2014-05-15
申请号：US13863901
申请日：2013-04-16
申请人： Babcock & Wilcox mPower, Inc.
发明人： Vince J. Bilovsky
IPC分类号： G21C7/00
CPC分类号： G21C7/00 , G21C1/322 , G21C3/326 , G21C3/3262 , G21C5/18 , G21C7/04 , G21C7/08 , G21D3/08 , Y02E30/32 , Y02E30/38 , Y02E30/39
摘要： A pressurized water reactor (PWR) includes a pressure vessel containing a nuclear reactor core immersed in primary coolant water, control rod assemblies (CRA's), and control rod drive mechanisms (CRDM's) operating the CRA's. The reactor core has axially varying 235U enrichment and/or axially varying burnable poison concentration. A CRDM controller controls the CRA's over a burn-up cycle that does not include fuel assembly shuffling and is divided into a plurality of burn-up intervals. The CRDM controller is configured to, for each burn up interval: position the CRA's in accordance with a CRA pattern defining a set of fixed positions for the CRA's except for a sub-set of CRA's designated by the CRA pattern as floating CRA's, and control power level of the PWR by adjusting the floating CRA's without not adjusting the CRA's not designated as floating CRA's. The primary coolant water optionally does not contain soluble neutron poison.
摘要翻译：加压水反应堆（PWR）包括一个压力容器，该压力容器含有沉积在一次冷却水中的核反应堆堆芯，控制杆组件（CRA）和操作CRA的控制杆驱动机构（CRDM）。反应堆芯具有轴向变化的235U富集和/或轴向变化的可燃毒物浓度。 CRDM控制器在不包括燃料组装洗牌的燃尽循环中控制CRA，并且被分为多个燃烧间隔。 CRDM控制器被配置为对于每个燃烧间隔：将CRA定位为根据CRA模式定位CRA模式，该CRA模式为CRA定义一组固定位置，除了由CRA模式指定的CRA子集作为浮动CRA，并且控制通过调整浮动CRA而不调整未指定为浮动CRA的CRA，PWR的功率级别。主冷却水任选地不含有可溶性中子毒素。

2. 发明申请

US20140064433A1 Fuel Assembly and Core of Nuclear Reactor 审中-公开
标题翻译：燃料组件和核反应堆核心
公开(公告)号：US20140064433A1
公开(公告)日：2014-03-06
申请号：US14013095
申请日：2013-08-29
申请人： Hitachi-GE Nuclear Energy, Ltd.
发明人： Naoyuki Nakadozono , Takeshi Mitsuyasu , Tomohiko Ikegawa
IPC分类号： G21C3/328
CPC分类号： G21C3/328 , G21C3/3262 , Y02E30/38
摘要： In a fuel assembly having fuel rods U1 to U4, and P1 not containing gadolinia, and fuel rods G1-G3 containing gadolinia, the concentrations a of gadolinia in nuclear fuel materials A (8 wt % and 10 wt %) satisfy 0.7
摘要翻译：在具有燃料棒U1〜U4，不含钆的P1的燃料组件和含有钆的燃料棒G1-G3的情况下，核燃料A（8重量％，10重量％）中的氧化钆浓度a满足0.7 = L（B）和L（B）/5.0> = L（C）。在循环结束时，浓度为灼烧的钆，在循环中期具有浓度b的钆，以及在循环开始时浓度为c的钆。 L（A）是G2和G3中的材料B的燃料棒G1-G3，L（B）和G1（C）中的材料C中填充有核燃料材料A的区域的总轴向长度。

3. 发明申请

US20130294559A1 NUCLEAR REACTOR 审中-公开
标题翻译：核反应堆
公开(公告)号：US20130294559A1
公开(公告)日：2013-11-07
申请号：US13978565
申请日：2012-01-05
申请人： Hiroshi Sekimoto
发明人： Hiroshi Sekimoto
IPC分类号： G21C7/30
CPC分类号： G21C7/30 , G21C1/02 , G21C3/00 , G21C3/3262 , G21C5/18 , Y02E30/34 , Y02E30/39
摘要： A nuclear reactor is provided with a core which includes a new fuel part and a burning part at which neutrons are generated and fuel is burned. The burning part moves in a direction toward the new fuel part from the beginning to the end of the combustion cycle. The plurality of the fuel assemblies of the core include the fuel assemblies which are fastened to the core and the fuel assemblies which can move in the longitudinal direction of the fuel assemblies. By pulling out the fuel assemblies from the core, the nuclear reactor can be made to stop. Further, by inserting fuel assemblies into the core from the pulled out state, the nuclear reactor is started up.
摘要翻译：核反应堆设置有核，其包括新的燃料部分和燃烧部分，在该部分产生中子并燃烧燃料。燃烧部分从燃烧循环的开始到结束朝新燃料部分的方向移动。核心的多个燃料组件包括紧固在芯体上的燃料组件和可在燃料组件的纵向移动的燃料组件。通过从核心中抽出燃料组件，可以使核反应堆停止。此外，通过将燃料组件从拉出状态插入到芯中，核反应堆被启动。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式