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1. 发明专利

JP2010032559A Reactor core of light-water reactor, and fuel assembly 有权
标题翻译：轻水反应堆的核反应堆和燃料组件
公开(公告)号：JP2010032559A
公开(公告)日：2010-02-12
申请号：JP2009262499
申请日：2009-11-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKEDA RENZO , MIWA JUNICHI , MORIYA KIMIAKI
IPC分类号： G21C5/00 , G21C3/328 , G21C3/62
CPC分类号： Y02E30/38
摘要： PROBLEM TO BE SOLVED: To provide a reactor core of a light-water reactor and a fuel assembly capable of further improving the degree of combustion by observing safety restriction conditions and increasing nuclear non-proliferation resistance properties, and capable of performing multiple-recycle and decreasing trans-uranium nuclides. SOLUTION: The reactor core flow rate of BWR is adjusted to a set reactor core flow rate determined from characteristics shown in Fig.2 according to the ratio of Pu-239 in TRU included in a new fuel assembly loaded to the reactor core. The reactor core flow rate is held at a set reactor core flow rate in the reactor core through each operation cycle of BWR. As a result, the ratio of a plurality of isotopes of TRU included by the fuel assembly when the fuel assembly is taken out of the BWR reactor core as a spent fuel assembly becomes essentially the same as the ratio of the isotopes of TRU included by the fuel assembly in the state of the new fuel assembly loaded to the BWR reactor core. The ratio of Pu-239 in TRU included in the new fuel assembly is not less than 40% and not more than 50%. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种轻水反应堆的反应堆堆芯和燃料组件，其能够通过观察安全限制条件和增加核不扩散阻力特性来进一步提高燃烧程度，并且能够执行多个反循环和减少反铀核素。解决方案：将BWR的反应堆堆芯流量调整到根据图2所示特性确定的设定的反应堆堆芯流量，根据加载到反应堆堆芯的新燃料组件中包含的TRU中的Pu-239的比例。通过BWR的每个操作循环，反应堆堆芯流量在反应堆堆芯中以设定的反应堆堆芯流速保持。结果，当将燃料组件作为乏燃料组件从BWR反应堆堆芯中取出时，由燃料组件包括的多个同步物的TRU的比率变得基本上与TRU所包含的TRU的同位素的比率相同，燃料组件处于装载到BWR反应堆堆芯的新燃料组件的状态。新燃料组件中包含的TRUU中的Pu-239比例不小于40％且不超过50％。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2004093142A Nuclear steam supply cassette and nuclear reactor of package type using it 有权
公开(公告)号：JP2004093142A
公开(公告)日：2004-03-25
申请号：JP2002250598
申请日：2002-08-29
申请人： Hitachi Ltd , Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社 , 株式会社日立製作所
发明人： USUI SHUJI , OYAMA TAKESHI , HIBI HIROMOTO , TAKIMOTO HIROKI , MAKIHARA YOSHIAKI , GOTO HIROSHI , MORIYA KIMIAKI , MATSUURA MASAYOSHI , KOYAMA KAZUTO , CHAGI MASAO
IPC分类号： G21C1/20
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide nuclear steam supply cassettes which can be used for a nuclear power plant as a non-network power source unconnected with an electric power system network and a nuclear reactor of a package type using the cassette.
SOLUTION: The nuclear steam supply cassettes 21 are laid out radially from the center in a moderator tank 31 to be filled with a moderator 30. The nuclear steam supply cassettes 21 are equipped with pressure tubes 22, steam generators 23 laid out circumferentially and extending upward from the center of inner walls of the pressure tubes 22 and in-cassette cores 24, fuel assemblies placed below the steam generators 23. The steam tubes 22 have reinforced fiber layers 26 made by wrapping carbon fiber around the outer peripheral face of pressure tube liners 25. Control rods 32 are laid out around the nuclear steam supply cassette 21 located in the center, and a water shielding tank 35 is placed outside the moderator tank 31. Pressure reducing valves 40 and emergency cooling water supply valves 38 are connected to the nuclear steam supply cassettes 21.
COPYRIGHT: (C)2004,JPO

3. 发明专利

JPH1130694A REACTOR CONTAINER PROVIDED WITH HYDROGEN GAS TREATING EQUIPMENT 失效
公开(公告)号：JPH1130694A
公开(公告)日：1999-02-02
申请号：JP18623497
申请日：1997-07-11
申请人： HITACHI LTD
发明人： KADANI NAOKI , ASANO TAKASHI , YAMANARI SHOZO , MORIYA KIMIAKI , KARASAWA HIDETOSHI , KAMO YUICHI
IPC分类号： G21C9/04 , G21D3/08
摘要： PROBLEM TO BE SOLVED: To effectively diminish pressure rise in a reactor container caused by a large quantity of hydrogen gas at the time of a severe accident by extracting hydrogen gas generated inside the reactor container to the outside by a hydrogen separator using hydrogen separation membrane. SOLUTION: A hydrogen separator 4 is constituted by bundling hydrogen separation membranes 5 of a cylindrical pipe and connecting the upper parts or both end parts. Hydrogen gas filled in a reactor container 1 permeates the inside from the outside of the hydrogen separation membranes 5 to be collected inside the hydrogen separator 4. Steam flows into the hydrogen separator 4 through a purge gas suction piping 55 to purge hydrogen gas, and the collected hydrogen gas is led to the outside of the container 1 through hydrogen discharge piping 6. A large quantity of hydrogen gas generated by water-metal reaction between cooling water and a fuel pipe at the time of a severe accident can therefore be treated effectively without venting the container 1 and without emitting a radioactive fission product to the outside.

4. 发明专利

JPH10300879A ADVANCED BOILING WATER REACTOR 失效
公开(公告)号：JPH10300879A
公开(公告)日：1998-11-13
申请号：JP10425797
申请日：1997-04-22
申请人： HITACHI LTD
发明人： TAKII TAICHI , MORIYA KIMIAKI , SONEDA HIDEO
IPC分类号： G21C7/08 , G21D3/04
摘要： PROBLEM TO BE SOLVED: To reduce the equipment cost by reducing the scram function of a control rod driving mechanism in a reactor peripheral part and a hydraulic control unit, and shortening the scram insertion time of a control rod or enhancing neutron absorbability as occasion demands. SOLUTION: To a reactor core are charged, for example, 872 fuel assemblies to form, for example, 205 reactor cells 2 in which one control rod is surrounded by 4 fuel assemblies except, for example, 52 partial peripheral part fuel assemblies 1. Control rod driving mechanisms of, for example, 161 reactor cells 2 having scram function are connected in sets of two to one hydraulic control unit. In this case, no scram function is imparted to, for example, 44 slashed peripheral reactor cells 3, and they are not connected to the hydraulic control units. Consequently, 22 hydraulic control unit can be reduced in this example, compared with in the past, and the equipment cost can be reduced.

5. 发明专利

JPH10268077A NATURAL CIRCULATION TYPE BOILING WATER REACTOR AND FUEL ASSEMBLY 失效
公开(公告)号：JPH10268077A
公开(公告)日：1998-10-09
申请号：JP7715997
申请日：1997-03-28
申请人： HITACHI LTD
发明人： TAKII TAICHI , YAMASHITA JUNICHI , MORIYA KIMIAKI , MASUHARA YASUHIRO , HAIKAWA KATSUMASA , YAMANAKA AKIHIRO
IPC分类号： G21C5/00 , G21C3/324 , G21C7/00 , G21C7/16
摘要： PROBLEM TO BE SOLVED: To suppress the increase of height of a reactor pressure vessel and reduce construction cost by large-sizing fuel assemblies, enlarging the grid pitch for loading them more than specific value and inserting the control rods having a cross shape cross section in the position outside the channel boxes in the both sides of a diagonal of each fuel assembly. SOLUTION: The gap width between fuel assemblies 2 where control rods 3 are inserted is kept and fuel assemblies 2 are enlarged, and the cross sectional area fraction in a channel box 1 in the core cross section is increased. Without reducing the cross sectional area fraction of fuel rods 14a and water rods 14b, flow area fraction where boiled coolant passes in the channel box is increased. By this, the pressure loss in the core 4 is reduced and the drive force of the cooling water becomes small. Also, as the grid pitch for loading a fuel assembly 2 is enlarged over 220 mm accompanied by the large-sizing of the fuel assembly 2. However, as control rods 3 having a cross shape cross section are inserted in the diagonal position of each fuel assembly 2, the controllability of the core 4 improves.

6. 发明专利

JPS6375594A NATURAL RADIATION TYPE CONTAINER 失效
公开(公告)号：JPS6375594A
公开(公告)日：1988-04-05
申请号：JP21946786
申请日：1986-09-19
申请人： HITACHI LTD
发明人： YASUNO TOYOJI , HORIUCHI TETSUO , MORIYA KIMIAKI , SHINNO TAKESHI , MIKI MINORU
IPC分类号： G21C13/00 , G21C9/00 , G21C9/004

7. 发明专利

JPS6327793A BORIC ACID WATER INJECTION SYSTEM 失效
公开(公告)号：JPS6327793A
公开(公告)日：1988-02-05
申请号：JP17111886
申请日：1986-07-21
申请人： HITACHI LTD
发明人： MORIYA KIMIAKI , YAMANARI SHOZO , MATSUMOTO MASAKI , TOTSUKA FUMIO , NAKAYAMA TAKASHI
IPC分类号： G21C7/22

8. 发明专利

JPS62191795A THERMAL STRESS AVOIDANCE VENT SYSTEM 失效
公开(公告)号：JPS62191795A
公开(公告)日：1987-08-22
申请号：JP3306586
申请日：1986-02-19
申请人： HITACHI LTD
发明人： KOGO OSAMU , YAMANARI SHOZO , MORIYA KIMIAKI , MATSUMOTO MASAKI , FURUKAWA HIDEYASU
IPC分类号： G21C9/004 , G21C9/00

9. 发明专利

JPS61187686A CONTAINER FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS61187686A
公开(公告)日：1986-08-21
申请号：JP2632185
申请日：1985-02-15
申请人： HITACHI LTD
发明人： MORIYA KIMIAKI , YAMANARI SHOZO , MATSUMOTO MASAKI
IPC分类号： G21C9/00 , G21C9/004

10. 发明专利

JPS58160891A EMERGENCY CORE COOLING SYSTEM 失效
公开(公告)号：JPS58160891A
公开(公告)日：1983-09-24
申请号：JP4262982
申请日：1982-03-19
申请人： HITACHI LTD
发明人： MORIYA KIMIAKI , SUGIZAKI TOSHIHIKO
IPC分类号： G21C15/18

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