WO2014076811A1 - 自然循環式沸騰水型原子炉及びそのチムニ - Google Patents
自然循環式沸騰水型原子炉及びそのチムニ Download PDFInfo
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- WO2014076811A1 WO2014076811A1 PCT/JP2012/079758 JP2012079758W WO2014076811A1 WO 2014076811 A1 WO2014076811 A1 WO 2014076811A1 JP 2012079758 W JP2012079758 W JP 2012079758W WO 2014076811 A1 WO2014076811 A1 WO 2014076811A1
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- chimney
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/24—Promoting flow of the coolant
- G21C15/26—Promoting flow of the coolant by convection, e.g. using chimneys, using divergent channels
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C1/00—Reactor types
- G21C1/04—Thermal reactors ; Epithermal reactors
- G21C1/06—Heterogeneous reactors, i.e. in which fuel and moderator are separated
- G21C1/08—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor
- G21C1/084—Boiling water reactors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- the present invention relates to a natural circulation boiling water reactor and its chimney, and more particularly to a method of driving coolant in a nuclear reactor by natural circulation without using a recirculation pump, and cooling in a reactor pressure vessel TECHNICAL FIELD
- the present invention relates to a natural circulation boiling water reactor suitable for use with a chimney that promotes natural circulation of materials and the chimney.
- a natural circulation boiling water reactor is provided with a chimney disposed above the core inside the reactor pressure vessel (see, for example, Patent Document 1).
- This chimney promotes natural circulation of the coolant in the reactor pressure vessel by guiding the coolant sent out from the core side as a gas-liquid two-phase flow to the upper side of the reactor pressure vessel.
- the chimney in a conventional natural circulation boiling water reactor has a flow path partition made of plate material or a square tube, and a gas-liquid two-phase flow of coolant flows into the flow path partition from the core side. Since a fluid-induced vibration due to the above or a horizontal load generated by an earthquake acts, a structural soundness that can withstand this load is required.
- the member forming the channel partition wall is thickened or the channel area formed by the channel partition wall is reduced. As a result, it is possible to improve the structural soundness of the chimney channel partition.
- the present invention has been made in view of the above points, and its object is to provide a natural circulation boiling water reactor capable of obtaining structural soundness that can withstand horizontal loads caused by flow excitation vibrations, earthquakes, and the like, and its To provide chimney.
- the chimney of the natural circulation boiling water reactor according to the present invention is installed inside the reactor pressure vessel, and the gas-liquid two-phase flow generated in the reactor core is placed above the reactor pressure vessel.
- Each of the flow paths is formed by being partitioned by a plurality of flow path partitions supported at the lowermost portion by chimney lattice plates, and adjacent to the flow path partitions of the flow paths.
- a chimney spacer that supports a horizontal load is installed between them, and a ring shape that supports a horizontal load is provided on the outermost periphery of the plurality of flow paths supported by the chimney lattice plate.
- a member is installed.
- the plurality of flow paths are formed by rectangular tubes having a rectangular cross section defined by the plurality of flow path partition walls, and each of the flow paths is arranged alternately with respect to the front-rear and left-right directions, and adjacent to each other.
- the chimney spacers having a cross-shaped cross section are installed at the corners between the flow path partition walls of the square tube.
- the plurality of flow paths have a rectangular cross section defined by the plurality of flow path partition walls.
- the chimney spacers having a rectangular cross section are installed at the corners between the flow path partition walls of the adjacent square tubes, each of which is formed with a square tube and arranged in every other direction in the front-rear and left-right directions. It is characterized by that.
- a plurality of the chimney spacers are provided at predetermined intervals in the axial direction.
- the chimney spacer is installed on the same plane as the ring-shaped member.
- a plurality of the ring-shaped members are installed above the chimney lattice plate at a predetermined interval.
- the uppermost part of the plurality of flow path partition walls, the lowermost part of which is supported by the chimney lattice plate, is supported by another chimney lattice plate, and the ring-shaped member is disposed between the lowermost part and the uppermost chimney lattice plate.
- a plurality of devices are installed at a predetermined interval.
- the uppermost part of the plurality of flow path partition walls is supported by another chimney lattice plate, and the ring-shaped member is disposed between the lowermost part and the uppermost chimney lattice plate. It is characterized by being installed in the middle.
- a portion installed on the outermost periphery and supported by the ring-shaped member is cut, and a cut end portion of the flow path partition wall is connected to the ring-shaped member via a chimney support plate. It is characterized by being supported.
- the plurality of flow path partition walls are formed by chimney plates, the plurality of flow paths are formed in a cross-sectional rectangle partitioned by the chimney plates, and a cross-shaped cross section is formed at a corner between adjacent chimney plates.
- the chimney spacer is provided.
- a portion located on the outermost periphery and supported by the ring-shaped member is cut, and a cut end portion of the chimney plate is inserted through the chimney support plate. It is supported by a ring-shaped member.
- the chimney spacer is characterized by being installed only on the same plane as the ring-shaped member.
- the ring-shaped member has a plurality of holes provided so as to penetrate in the vertical direction, a chimney rod is inserted into the hole, and the lower end of the chimney rod is installed below. It is fixed by being fastened to the lattice plate.
- a natural circulation boiling water reactor is a reactor pressure vessel and a reactor core installed in the reactor pressure vessel and loaded with a plurality of fuel assemblies.
- FIG. 7 is a front view of FIG. 2.
- FIG. 4 is a cross-sectional view taken along the line cs1-cs1 in FIG.
- FIG. 4 is a sectional view taken along line cs2-cs2 in FIG. It is an enlarged view of the L1 area
- FIG. 8 is a plan view of FIG. 7.
- FIG. 1 shows an overall configuration of the natural circulation boiling water reactor according to the first embodiment of the present invention.
- the natural circulation boiling water reactor 1 of this embodiment surrounds a reactor core 4 in which a plurality of fuel assemblies 3 are loaded in a reactor pressure vessel 2 and the outer periphery of the reactor core 4.
- the reactor pressure vessel 2 is equipped with a steam outlet nozzle 10 and a feed water inlet nozzle 11.
- a chimney cylinder 7h As shown in FIG. 1, the chimney 7 will be described in detail later.
- a chimney cylinder 7h As shown in FIG. 1, a chimney cylinder 7h, a chimney lattice plate 7a, a square tube 12 forming a chimney channel partition wall 7c, a chimney support ring 7d, and a chimney It is mainly composed of a spacer 7e, a chimney support plate 7f, and a chimney rod 7g.
- the chimney cylinder 7 h is installed above the reactor core 4 inside the reactor pressure vessel 2, is formed of a cylindrical member, and is concentric with the cylindrical reactor pressure vessel 2. It is installed to become.
- FIG. 2 shows the structure excluding the chimney cylinder 7h.
- the chimney 7 of this embodiment is installed inside the reactor pressure vessel 2 shown in FIG. 1 and guides the gas-liquid two-phase flow generated in the reactor core 4 to the upper side of the reactor pressure vessel 2.
- Each of the flow paths 13 is formed by being partitioned by a plurality of chimney flow path partition walls 7c that are supported by chimney lattice plates 7a, and each of the flow paths 13 is adjacent to the adjacent flow paths 13.
- cross-shaped chim spacers 7e supporting horizontal loads are arranged, and the outermost periphery of the plurality of flow paths 13 supported by the chimney lattice plate 7a is A chimney support ring 7d, which is a ring-shaped member that supports a load in the horizontal direction, is disposed.
- the chimney lattice plate 7a is provided inside the chimney cylinder 7h and below the chimney channel partition 7c to support the plurality of chimney channel partitions 7c, and is concentric with the chimney cylinder 7h. is set up.
- the chimney lattice plate 7a is installed on the inner flange of the chimney cylinder 7h. As shown in FIG. 5, the chimney lattice plate 7a has a large number of chimney lattice plate holes 7b through which the gas-liquid two-phase flow sent from the core 4 passes.
- the plurality of channels 13 are formed by rectangular tubes 12 having a rectangular cross section (quadrangle) partitioned by a plurality of chimney channel partition walls 7c.
- each square tube 12 is regularly extended vertically from the chimney lattice plate 7a toward the upper direction.
- a plurality are arranged. Every other square tube 12 is inserted into the chimney lattice plate hole 7b, and its end is welded and fixed to the chimney lattice plate hole 7b.
- the square tube 12 may be mounted on the chimney lattice plate 7a and fixed by welding so as to surround the chimney lattice plate hole 7b without being inserted into the chimney lattice plate hole 7b.
- the side surface of the square tube 12 arranged at the outermost peripheral portion of the chimney lattice plate 7a is vertically aligned with the shape of the chimney lattice plate hole 7b where the square tube 12 is arranged. Cut in direction.
- a cross section that supports a load in the horizontal direction is provided in the gap between the corners of the adjacent square tubes 12 (corner between the chimney channel partition walls 7c).
- Cross-shaped chimney spacers 7e are installed, and are fixed by welding in several places in the vertical direction of the square tube 12. By this chimney spacer 7e, the adjacent square tubes 12 restrain the horizontal movement of each other.
- a plurality of chimney support rings 7d that support a load in the horizontal direction are provided at a predetermined interval in the vertical direction of the square tube 12 (in this embodiment, two of the uppermost portion and the middle portion of the square tube 12).
- This chimney support ring 7d is the same as all the positions where the above-mentioned chimney spacers 7e are installed (the same here means that some deviation due to manufacturing errors etc. is included) on the plane Is installed.
- the side surface of the portion located on the outermost periphery and supported by the chimney support ring 7d is cut, and the cut chimney channel partition walls 7c
- the cut end is connected to the chimney support ring 7d via a chimney support plate 7f installed without a gap between the cut end part and the chimney support ring 7d. Therefore, the chimney support ring 7d restrains the horizontal movement of all the square tubes 12 constituting the chimney 7 through the chimney support plate 7f and the chimney spacer 7e.
- all the chimney support rings 7d have holes for a plurality of chimney rods 7g provided so as to penetrate in the vertical direction, and a plurality of chimney rods 7g are inserted into the holes, and the chimney rods 7g are inserted in the through portions. Is fixed to the chimney support ring 7d by welding. On the other hand, the lower end of the chimney rod 7g is inserted into a hole provided in the vertical direction of the chimney lattice plate 7a and fixed by welding.
- the chimney support ring 7d receives a restraining force in the horizontal direction by the chimney lattice plate 7a.
- the horizontal load of the chimney channel partition wall 7c is not supported only by the lattice-like support plates installed above and below the chimney channel partition wall 7c as in the prior art.
- a horizontal load is applied by a chimney lattice plate 7a installed below the flow path partition wall 7c, a plurality of chimney support rings 7d installed above the chimney lattice plate 7a, chimney spacers 7e, and chimney support plates 7f. Therefore, there is an effect that a structural soundness that can withstand a fluid excitation vibration caused by a gas-liquid two-phase flow of coolant flowing from the core side or a horizontal load generated by an earthquake is obtained.
- the structure can support the horizontal load of the chimney channel partition wall 7c at a plurality of locations in the vertical direction, the structural soundness can be improved as compared with the conventional chimney structure. .
- the amount of thermal deformation that the square tube 12 receives by welding heat is reduced by halving the welded portion for installing the square tube 12 on the chimney lattice plate 7a.
- the total weight of the chimney 7 can be reduced, and operability at the time of installation in the reactor pressure vessel 2 or removal is also possible. It will be improved.
- the chimney rod 7g is welded from the uppermost chimney support ring 7d through the lowermost chimney lattice plate 7a, so that when the chimney 7 is suspended or unloaded from the reactor pressure vessel 2, the uppermost chimney Even when a lifting jig is attached to the support ring 7d, the entire weight of the chimney 7 can be supported by the chimney lattice plate 7a having the highest structural strength by attaching a lifting tool to the upper part of the chimney rod 7g. Sex is secured.
- the example of the rectangular tube 12 having a rectangular cross section (quadrangle) sectioned by the plurality of chimney channel partition walls 7c has been described as the channel 13, but the present invention is not limited thereto. Needless to say, even if the cross section is polygonal, circular, or the like, a similar effect can be obtained as long as the tube is formed.
- an example of a cross-shaped cross section or a rectangular cross section is described as the chimney spacer, but it is needless to say that the present invention is not limited to this shape.
- FIG. 7 to 9 show a second embodiment of the chimney of the natural circulation boiling water reactor of the present invention.
- the present embodiment shown in the figure has a configuration substantially similar to the configuration of the first embodiment, and is different from the first embodiment in the shape of the chimney spacers and the manner of attachment to the square tube. Other configurations are the same as those of the first embodiment.
- the corners of adjacent square tubes 12 (corners between the chimney channel partitions 7 c) have rectangular cross sections that support horizontal loads.
- Chimney spacers 7j are installed and fixed by welding at several points in the vertical direction of the square tube 12.
- the same effects as those of the first embodiment can be obtained, and, in comparison with the first embodiment, the horizontal direction acting on the square tube 12 forming the chimney flow path partition wall 7c can be obtained.
- the chimney spacer 7j can be attached even if the gap between the adjacent square tubes 12 becomes narrow without impairing the structural soundness with respect to the load.
- the shape of the chimney spacer 7j can be simplified, the manufacturing cost can be reduced.
- FIG. 10 shows a third embodiment of the chimney of the natural circulation boiling water reactor according to the present invention.
- a chimney lattice plate 7a is installed at the top of the chimney channel partition wall 7c.
- the chimney lattice plate 7a is different in that the uppermost portion of the square tube 12 is constrained.
- Other configurations are the same as those of the first embodiment.
- the uppermost part of the plurality of chimney channel partitions 7c, the lowermost part of which is supported by the chimney lattice board 7a, is supported by another chimney lattice board 7a '
- the ring 7d is installed in the middle between the lowermost chimney lattice plate 7a and the uppermost chimney lattice plate 7a ′.
- the chim spacer 7e is the same as the chimney support ring 7d installed in the middle between the chimney lattice plate 7a at the bottom of the chimney channel partition wall 7c and the chimney lattice plate 7a 'at the top (the same definition here is It is the same as that of the first embodiment).
- the example in which the chimney support ring 7d is installed in the middle between the lowermost chimney lattice plate 7a and the uppermost chimney lattice plate 7a ' has been described.
- the present invention is not limited to this.
- a plurality of chimney support rings 7d may be disposed between the lowermost chimney lattice plate 7a and the uppermost chimney lattice plate 7a '.
- FIGS. 11 to 13 show a chimney embodiment 4 of the natural circulation boiling water reactor of the present invention.
- the present embodiment shown in the figure is different from the first embodiment in the configuration of the chimney flow path partition 7c.
- Other configurations are the same as those of the first embodiment.
- a plurality of chimney channel partitions 7c are formed by a plate chimney plate 7i, and the plurality of channels 13 are formed in a rectangular cross section partitioned by the plate chimney plate 7i and adjacent to each other.
- a chimney spacer 7e having a cross-shaped cross section is provided at a corner between the chimney plates 7i.
- a plurality of chimney support rings 7d which are ring-shaped members that support a load in the horizontal direction, are provided at a predetermined interval in the vertical direction of the chimney flow path partition wall 7c (in this embodiment, the chimney flow path partition wall).
- the chimney support ring 7d is the same as all the positions where the above-mentioned chimney spacers 7e are installed (the same definition here is defined in the first embodiment). It is installed only on a flat surface. Further, among the chimney plates 7i forming the plurality of flow paths 13, a portion located on the outermost periphery and supported by the chimney support ring 7d is cut, and a cut end portion of the chimney plate 7i is a chimney support plate (not shown). ) Through the chimney support ring 7d.
- the above-mentioned chimney flow path partition wall 7c is fixed to the upper surface of the chimney grid plate 7a by welding at the lower end of the chimney plate 7i so as to surround the chimney grid plate hole 7b.
- the chimney plate 7i is restrained in the horizontal direction by the chimney support ring 7d and the chimney spacer 7e installed at the upper and lower ends of the chimney plate 7i.
- the chimney plate 7i has a structure in which the chimney spacer 7e is constrained by being connected to the adjacent chimney plate 7i by welding.
- the same effects as those of the first embodiment can be obtained, and the chimney plate 7i is not welded all around in the vertical direction, but the chimney spacer 7e is attached. Since only the portion is welded to the adjacent chimney plate 7i, the amount of thermal deformation due to the welding heat can be suppressed even when the chimney plate 7i is used to form the chimney flow path partition 7c.
- this invention is not limited to the above-mentioned Example, Various modifications are included.
- the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
- a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
- SYMBOLS 1 Natural circulation boiling water reactor, 2 ... Reactor pressure vessel, 3 ... Fuel assembly, 4 ... Core, 5 ... Core shroud, 6 ... Upper lattice plate, 7 ... Chimney, 7a, 7a '... Chimney lattice Plate, 7b ... Chimney lattice plate hole, 7c ... Chimney flow path partition, 7d ... Chimni support ring, 7e, 7j ... Chimney spacer, 7f ... Chimni support plate, 7g ... Chimney rod, 7h ... Chimney body, 7i ... Chimney plate, DESCRIPTION OF SYMBOLS 8 ... Steam separator, 9 ... Steam dryer, 10 ... Steam outlet nozzle, 11 ... Feed water inlet nozzle, 12 ... Square tube, 13 ... Flow path.
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Abstract
Description
また、複数の前記流路は、複数の前記流路隔壁により区画された断面矩形の角管で形成されると共に、それぞれが前後左右方向に対して1つ置きに配置され、かつ、隣接する前記角管の流路隔壁間の角部に断面長方形の前記チムニスペーサが設置されていることを特徴とする。
Claims (15)
- 原子炉圧力容器の内部に設置され、炉心で発生した気液二相流を前記原子炉圧力容器の上方へ導く複数の流路から成り、各々の前記流路は、最下部がチムニ格子板により支持されている複数の流路隔壁により区画されて形成されると共に、隣接する前記流路の流路隔壁間には、互いに水平方向の荷重を支持し合うチムニスペーサが設置され、かつ、前記チムニ格子板に支持されている複数の前記流路の最外周には、水平方向の荷重を支持するリング状部材が設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。
- 請求項1に記載の自然循環式沸騰水型原子炉のチムニにおいて、
複数の前記流路は、複数の前記流路隔壁により区画された断面矩形の角管で形成されると共に、それぞれが前後左右方向に対して1つ置きに配置され、かつ、隣接する前記角管の流路隔壁間の角部に断面十字形の前記チムニスペーサが設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項1に記載の自然循環式沸騰水型原子炉のチムニにおいて、
複数の前記流路は、複数の前記流路隔壁により区画された断面矩形の角管で形成されると共に、それぞれが前後左右方向に対して1つ置きに配置され、かつ、隣接する前記角管の流路隔壁間の角部に断面長方形の前記チムニスペーサが設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項1乃至3のいずれか1項に記載の自然循環式沸騰水型原子炉のチムニにおいて、
前記チムニスペーサは、軸方向に所定の間隔をもって複数個設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項1乃至4のいずれか1項に記載の自然循環式沸騰水型原子炉のチムニにおいて、
前記チムニスペーサは、前記リング状部材と同一平面上に設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項1乃至5のいずれか1項に記載の自然循環式沸騰水型原子炉のチムニにおいて、
前記リング状部材は、前記チムニ格子板の上方に所定間隔をもって複数個設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項1乃至5のいずれか1項に記載の自然循環式沸騰水型原子炉のチムニにおいて、
最下部が前記チムニ格子板により支持されている複数の前記流路隔壁の最上部が別のチムニ格子板で支持され、前記リング状部材は、最下部と最上部の前記チムニ格子板の間に少なくとも1個設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項7に記載の自然循環式沸騰水型原子炉のチムニにおいて、
前記リング状部材は、最下部と最上部の前記チムニ格子板間の中間に設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項1乃至8のいずれか1項に記載の自然循環式沸騰水型原子炉のチムニにおいて、
複数の前記流路隔壁のうち、最外周に設置されて前記リング状部材に支持される部分が切断され、該流路隔壁の切断端部がチムニサポートプレートを介して前記リング状部材に支持されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項1に記載の自然循環式沸騰水型原子炉のチムニにおいて、
複数の前記流路隔壁がチムニプレートにより形成され、複数の前記流路は、前記チムニプレートにより区画された断面矩形に形成され、かつ、隣接する前記チムニプレート間の角部に断面十字形の前記チムニスペーサが設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項10に記載の自然循環式沸騰水型原子炉のチムニにおいて、
複数の前記流路を形成する前記チムニプレートのうち、最外周に位置して前記リング状部材に支持される部分が切断され、該チムニプレートの切断端部がチムニサポートプレートを介して前記リング状部材に支持されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項10又は11に記載の自然循環式沸騰水型原子炉のチムニにおいて、
前記リング状部材は、前記チムニ格子板の上方に所定間隔をもって複数個設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項10乃至12のいずれか1項に記載の自然循環式沸騰水型原子炉のチムニにおいて、
前記チムニスペーサは、前記リング状部材と同一平面上にのみ設置されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 請求項1乃至13のいずれか1項に記載の自然循環式沸騰水型原子炉のチムニにおいて、
前記リング状部材は、その上下方向に貫通して設けられた複数の孔部を有し、該孔部にチムニロッドが差込まれ、そのチムニロッドの下端が、下方に設置されている前記チムニ格子板に締結されることで固定されていることを特徴とする自然循環式沸騰水型原子炉のチムニ。 - 原子炉圧力容器と、該原子炉圧力容器内に設置され、複数の燃料集合体が装荷されている炉心と、該炉心の周囲を囲う炉心シュラウドと、前記炉心の上部を構成する格子板と、該格子板上に立設されているチムニと、該チムニの上部に設置された気水分離器と、該気水分離器の上部に設置された蒸気乾燥器とを備え、
前記チムニは、請求項1乃至14のいずれか1項に記載の自然循環式沸騰水型原子炉のチムニであることを特徴とする自然循環式沸騰水型原子炉。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12888573T PL2922066T3 (pl) | 2012-11-16 | 2012-11-16 | Reaktor wodny wrzący z naturalną cyrkulacją oraz komin reaktora |
PCT/JP2012/079758 WO2014076811A1 (ja) | 2012-11-16 | 2012-11-16 | 自然循環式沸騰水型原子炉及びそのチムニ |
JP2014546799A JP5898783B2 (ja) | 2012-11-16 | 2012-11-16 | 自然循環式沸騰水型原子炉及びそのチムニ |
LTEP12888573.8T LT2922066T (lt) | 2012-11-16 | 2012-11-16 | Verdančio vandens reaktorius su natūralia cirkuliacija ir jo kaminas |
US14/442,934 US9666312B2 (en) | 2012-11-16 | 2012-11-16 | Natural-circulation boiling water reactor and chimney therefor |
EP12888573.8A EP2922066B1 (en) | 2012-11-16 | 2012-11-16 | Natural-circulation boiling water reactor and chimney therefor |
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EP (1) | EP2922066B1 (ja) |
JP (1) | JP5898783B2 (ja) |
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Cited By (3)
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---|---|---|---|---|
WO2016022445A1 (en) * | 2014-08-06 | 2016-02-11 | Ge-Hitachi Nuclear Energy Americas Llc | Chimney assembly of a reactor pressure vessel and method of storing the same during a nuclear reactor outage |
EP3035338A1 (en) * | 2014-12-19 | 2016-06-22 | GE-Hitachi Nuclear Energy Americas LLC | Reactor pressure vessel assembly including a flow barrier structure |
US10128007B2 (en) | 2015-07-06 | 2018-11-13 | Ge-Hitachi Nuclear Energy Americas Llc | Chimneys having joinable upper and lower sections where the lower section has internal partitions |
Families Citing this family (1)
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JP7335059B2 (ja) | 2021-03-19 | 2023-08-29 | 本田技研工業株式会社 | スイッチ構造 |
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- 2012-11-16 WO PCT/JP2012/079758 patent/WO2014076811A1/ja active Application Filing
- 2012-11-16 US US14/442,934 patent/US9666312B2/en active Active
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016022445A1 (en) * | 2014-08-06 | 2016-02-11 | Ge-Hitachi Nuclear Energy Americas Llc | Chimney assembly of a reactor pressure vessel and method of storing the same during a nuclear reactor outage |
US9721687B2 (en) | 2014-08-06 | 2017-08-01 | Ge-Hitachi Nuclear Energy Americas Llc | Method of storing a chimney assembly of a reactor pressure vessel during a nuclear reactor outage |
EP3035338A1 (en) * | 2014-12-19 | 2016-06-22 | GE-Hitachi Nuclear Energy Americas LLC | Reactor pressure vessel assembly including a flow barrier structure |
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US10128007B2 (en) | 2015-07-06 | 2018-11-13 | Ge-Hitachi Nuclear Energy Americas Llc | Chimneys having joinable upper and lower sections where the lower section has internal partitions |
Also Published As
Publication number | Publication date |
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LT2922066T (lt) | 2018-07-25 |
JP5898783B2 (ja) | 2016-04-06 |
US9666312B2 (en) | 2017-05-30 |
US20150332793A1 (en) | 2015-11-19 |
JPWO2014076811A1 (ja) | 2017-01-05 |
EP2922066B1 (en) | 2018-06-27 |
EP2922066A4 (en) | 2016-07-13 |
EP2922066A1 (en) | 2015-09-23 |
PL2922066T3 (pl) | 2018-11-30 |
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