专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明专利

JPH06201881A CONCRETE STRUCTURE IN REACTOR CONTINMENT 失效
公开(公告)号：JPH06201881A
公开(公告)日：1994-07-22
申请号：JP55193
申请日：1993-01-06
申请人： TOSHIBA ENGINEERING CO , TOSHIBA CORP
发明人： HOSHINO SHINICHI
IPC分类号： G21C13/00 , G21C13/024
摘要： PURPOSE:To make lower drywell additional concrete bearable for shear stress at the earthquake. CONSTITUTION:Inner lower surface of pedestal 4 supporting a reactor pressure vessel 8, shear plates 11 are provided intermittently along the circumference and lower drywell additional concrete 9 is laid at the bottom of lower drywell 6. In the lower drywell additional concrete 9, a samp pit 10 is provided. By providing the shear plates 11, the lower drywell additional concrete can bear the shear stress at the earthquakes.

52. 发明专利

JPH0627282A REACTOR BUILDING 失效
公开(公告)号：JPH0627282A
公开(公告)日：1994-02-04
申请号：JP18106992
申请日：1992-07-08
申请人： KAJIMA CORP
发明人： ISHIKAWA KATSUHIKO
IPC分类号： E04H9/02 , G21C13/024
摘要： PURPOSE:To simplify the clearance work for a reactor building of which part of upper structure is constructed underground and structured aseismically and avoid the flexible joint between a containment and the periphery of the building. CONSTITUTION:The building is constituted of a lower structure 1 consisting of a lower basemat 11 constructed underground and located below a containment 21 and a lower peripheral part 12 surrounding the lower side around the containment 21, and an upper structure 2 consisting of the containment 21 which is constructed above the lower structure 1 insulated from it and part of which is constructed underground, and upper peripheral parts 22 surrounding the upper side around it. Between the lower basemat 11 and the containment 21, and between the lower periphery 12 and the upper periphery 22, an aseismic device 3 is placed so that the upper structure 2 is aseismically structured. As the lower side of the containment 21 is arranged in inner side of the lower periphery 12, the clearance work around the upper structure 2 is simplified. And as the containment 21 belongs to the upper structure 2, placing a flexible joint between the containment 21 and the upper periphery 22 is avoided.

53. 发明专利

JPH0627281A HORIZONTAL VENT PIPE 失效
公开(公告)号：JPH0627281A
公开(公告)日：1994-02-04
申请号：JP18076992
申请日：1992-07-08
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： FURUKAWA HIDEYASU , NANBA SHIGERU , HATTORI AKIRA , SATOU TOMOJIROU , KATONO TAIICHI , WADAYAMA TADAO
IPC分类号： G21C13/00 , G21C13/024
摘要： PURPOSE:To drastically shorten the construction process of horizontal vent pipe and reactor body basemat and improve work efficiency. CONSTITUTION:In connecting parts constituting a horizontal vent pipe 5 and a reactor body basemat 1, a short pipe 10 for a vertical pipe, a short pipe 11 for horizontal discharge pipe or a short pipe 12 for return line are put in for connection between a vertical pipe 6 and the top slab 4 fixed to an outer cylinder 2 and inner cylinder 3, between the outer cylinder 2 and a horizontal discharge pipe 7, and between a return line 9 and the inner cylinder 3, respectively. These short pipes and both ends parts holding these short pipes are welded respectively.

55. 发明专利

JPH05223977A BUILDING METHOD FOR NUCLEAR POWER FACILITY 失效
公开(公告)号：JPH05223977A
公开(公告)日：1993-09-03
申请号：JP2377892
申请日：1992-02-10
申请人： OHBAYASHI CORP
发明人： IBA TSUTOMU
IPC分类号： G21C13/00 , G21C13/024
摘要： PURPOSE:To obtain the building method for an nuclear power facility, which can build the nuclear power facility, without securing a new place for construction. CONSTITUTION:An existing building 1 and inner concrete 3 are disassembled, and a foundation part 5 is made to remain. A new nuclear power facility comprising a building 8 and inner concrete 9 is constructed on the foundation part 5 through a base isolation structure. Since the building 8 and the inner concrete 9 can be made light, the facility can be adequately constructed on the existing foundation part 5.

60. 发明专利

JPH0427897A STABILIZER FOR NUCLEAR REACTOR PRESSURE VESSEL 失效
公开(公告)号：JPH0427897A
公开(公告)日：1992-01-30
申请号：JP13255790
申请日：1990-05-24
申请人： TOSHIBA CORP
发明人： TAIRA TAKAOMI
IPC分类号： G21C13/024
摘要： PURPOSE:To mitigate seismic response of a nuclear reactor pressure vessel system and to improve a seismicity of the nuclear reactor pressure vessel system by utilizing friction force between a cylindrical body and rod, derived from an elastoplastic deformation of a plurality of cylindrical bodies which fit each other. CONSTITUTION:A dispersion mechanism of vibration energy which is installed between a gusset side wall 7 of a rod 9 and a sleeve 11 is constituted of a friction sleeve 31 consisting of a pair of metallic cylinders which fit so as to be able to slide each other, and a tapered cylinder 32 for bearing planar pressure load. In case that seismic input is received, relational changing occurs between the rod 9 which is fastened to a yoke 8, and the gusset side wall 7, and therewith a belleville spring 10 extends or shrinks, and one end where the slit 33 of the sleeve 31 is formed, deforms elastically by change of fitting degree of the cylinder 32 and the sleeve 31, and finally friction force between the rod 9 and the sleeve 31 changes, too. By this friction force, the vibration energy is dispersed and therefore seismic response of the nuclear reactor pressure vessel 2 is much mitigated.

你已经成功收藏专利！

检索式保存成功!

IPRDB