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71. 发明授权

US5116567A Nuclear reactor with bi-level core 失效
标题翻译：具有双层核心的核反应堆
公开(公告)号：US5116567A
公开(公告)日：1992-05-26
申请号：US553073
申请日：1990-07-10
申请人： Larry E. Fennern
发明人： Larry E. Fennern
IPC分类号： G21C3/16 , F04D7/08 , F04D13/04 , F04D15/00 , F04D29/04 , F04D29/047 , F04D29/42 , F04D29/44 , G21C1/08 , G21C1/28 , G21C3/328 , G21C5/00 , G21C5/02 , G21C5/12 , G21C5/22 , G21C7/16 , G21C7/22 , G21C9/033 , G21C15/24 , G21C15/243 , G21C17/00 , G21D3/04
CPC分类号： F04D29/047 , F04D13/043 , F04D15/0005 , F04D29/426 , F04D29/448 , F04D7/08 , G21C1/084 , G21C15/24 , G21C15/243 , G21C1/28 , G21C5/02 , G21Y2002/201 , G21Y2002/601 , G21Y2004/40 , Y02E30/31 , Y10S376/917
摘要： A reactor core includes upper and lower matrices of fuel bundles. Fuel rods in the upper matrix have their plenums oriented upward, while fuel rods in the lower matrix have their plenums oriented downward. Refueling involves removal of a first bundle in the upper matrix, removal and retirement of the bundle in the lower matrix directly below the original position of the first bundle, inversion and installation of the first bundle in the lower matrix, and installlation of a new bundle in the upper matrix. The new bundle is installed plenum-side up. The bi-level core provides greater flexibility in repositioning fuel bundles for longer burnups and lower high-level waste. In particular, problems with axial spectral variations in neutron flux can be compensated using the disclosed core arrangement and refueling procedure.
摘要翻译：反应堆堆芯包括燃料束的上下矩阵。上矩阵中的燃料棒具有朝上的集气室，而下矩阵中的燃料棒具有朝向下的集气室。加油涉及去除上层矩阵中的第一束，将下层矩阵中的束的去除和退出直接在第一束的原始位置的下方，第一束的倒置和安装在下矩阵中，并且安装新的束在上矩阵中。新的捆绑包安装在全局方面。双层核心为更长的燃耗重新定位燃料束和降低高级废物提供了更大的灵活性。特别地，可以使用所公开的核心布置和加油程序来补偿中子通量的轴向光谱变化的问题。

72. 发明授权

US5100289A Self-priming centrifugal pump 失效
标题翻译：自吸式离心泵
公开(公告)号：US5100289A
公开(公告)日：1992-03-31
申请号：US727393
申请日：1991-07-05
申请人： Bruno Caoduro
发明人： Bruno Caoduro
IPC分类号： F04D9/06 , F04D29/44
CPC分类号： F04D9/06 , F04D29/448
摘要： The present invention relates to a self-priming centrifugal pump which includes a stator case with a delivery port and an outflow port and a radial-centrifugal bladed impeller. An ejector is provided inside the case and has an induction chamber which is connected to the intake port, an entrainment nozzle connected to the internal chamber of the stator case and a diffusion duct which is coaxial to the impeller and is connected to its inflow section. A conveyor is provided after the impeller and includes at least one radial-centripetal conveyance channel and an annular outflow section which extends peripherally to the diffusion duct of the ejector. The conveyor has a configuration which is suitable for directing the flow which leaves the impeller toward a central portion of the case which is adjacent to the outer portion of the diffusion duct and is distant from the delivery port, and for making the flow laminar so as to facilitate the separation of air and its migration toward the delivery port.

73. 发明授权

US5091144A BWR zero pressure containment 失效
标题翻译： BWR零压力容器
公开(公告)号：US5091144A
公开(公告)日：1992-02-25
申请号：US560410
申请日：1990-07-30
申请人： Charles W. Dillmann , Harold E. Townsend , Loyd B. Nesbitt
发明人： Charles W. Dillmann , Harold E. Townsend , Loyd B. Nesbitt
IPC分类号： F04D7/08 , F04D13/04 , F04D15/00 , F04D29/04 , F04D29/047 , F04D29/42 , F04D29/44 , G21C1/08 , G21C1/28 , G21C5/02 , G21C9/00 , G21C9/004 , G21C13/00 , G21C15/24 , G21C15/243
CPC分类号： F04D29/047 , F04D13/043 , F04D15/0005 , F04D29/426 , F04D29/448 , F04D7/08 , G21C1/084 , G21C15/24 , G21C15/243 , G21C9/004 , G21C1/28 , G21C5/02 , G21Y2002/201 , G21Y2002/601 , G21Y2004/40 , Y02E30/31
摘要： The wetwell space in a suppression pool of a nuclear reactor containment is continuously ventilated by exhausting gas therefrom, while at the same time, during normal system operation atmospheric air from a source of same is admitted to the wetwell but such admission being blocked during a LOCA. All exhaust flow from the wetwell is conveyed through a conduit that outlets at a remote elevated location in the atmosphere. All exhaust flow through the conduit is before outletting therefrom passed through gas treatment operation wherein any particulates in the gas mixture are removed. Further treatment of the gas with charcoal to adsorb noble gases can be carried out. In normal reactor operation the ventilation flow rate is at minimal level. However on occurrence of a loss-of-coolant-accident, highly heated gases from the containment drywell are passed into the suppression pool where condensables condense while non-condensable gases are cooled and vent to the wetwell. Fission products are scrubbed in the pool and much retained therein. The ventilation rate increases during LOCA to carry off the increased non-condensable gas mixture volume created by the LOCA and, because the conduit is such sized, containment drywell pressure during the LOCA, is maintained at a level not to exceed about one atmospheric gauge. This allows that containment structures can be of lighter weight than heretofore and enclose more components such as turbine units and condensers.
摘要翻译：核反应堆容器的抑制池中的空间通过从其中排出气体而连续通风，同时在正常的系统运行期间，来自其源的大气从空气通道进入，但在LOCA期间阻挡。来自水槽的所有排气都通过管道传送，大气中的远处高处位置处出口。所有通过导管的废气流经出口通过气体处理操作，其中除去气体混合物中的任何微粒。可以进行用炭的气体进一步处理以吸附惰性气体。在正常的反应堆操作中，通风流量处于最低水平。然而，在发生冷却剂损失事故的情况下，来自安全壳干井的高度加热的气体进入抑制池，其中可冷凝物冷凝，而不可冷凝的气体被冷却并排放到水中。裂变产物在池中被洗涤，并且保留在其中。在LOCA期间，通风速率增加，以提高由LOCA产生的增加的不可冷凝气体混合物体积，并且由于导管的尺寸如此大，在LOCA期间容纳干井压力保持在不超过约一个大气压表的水平。这允许容纳结构的重量比以前更轻，并且包括更多的部件，例如涡轮机单元和冷凝器。

74. 发明授权

US4802818A Slurry pump suction side liner with replaceable components 失效
标题翻译：泥浆泵抽吸侧衬套可更换部件
公开(公告)号：US4802818A
公开(公告)日：1989-02-07
申请号：US101390
申请日：1987-09-28
申请人： Daniel Wiggins , Robert B. Flood, Jr.
发明人： Daniel Wiggins , Robert B. Flood, Jr.
IPC分类号： F04D7/04 , F04D29/42
CPC分类号： F04D7/04 , F04D29/4273 , F04D29/448
摘要： A slurry pump suction side liner with replaceable components is provided utilizing separate suction port assembly, wear ring assembly, wear plate assembly and backing plate assembly components connected together to form a rigid suction side liner for directing a slurry into an impeller inlet. A replaceable annular wear ring having a first wear resistant surface facing the inlet axis and a second wear resistant surface at right angles to the inlet axis is provided to maintain a predetermined gap between gap between the impeller and replaceable wear ring to prevent slurry flow between the impeller and suction side liner assembly. An annular wear plate assembly having a wear resistant surface flush with the second wear resistant surface on the wear ring assembly is also provided to extend the gap radially outward from the wear ring, which is positioned between a suction port and the impeller. The wear ring and wear plate are each made in sections so the suction side liner may be removed and replacement made of the suction port or individual sections of the wear ring or wear plate as abrasion on the components by the slurry takes place without necessity of replacing the entire suction side liner. The wear ring and wear plate wear resistant surfaces are made of wear resistant carbide.
摘要翻译：利用单独的吸入口组件，耐磨环组件，耐磨板组件和背板组件部件连接在一起以形成用于将浆料引导到叶轮入口中的刚性抽吸侧衬套来提供具有可替换部件的浆料泵吸入侧衬里。提供具有面向入口轴线的第一耐磨表面和与入口轴线成直角的第二耐磨表面的可更换的环形耐磨环，以在叶轮和可更换的耐磨环之间的间隙之间保持预定的间隙，以防止在叶轮和吸力侧衬套组件。还提供了具有与耐磨环组件上的第二耐磨表面齐平的耐磨表面的环形耐磨板组件，用于将间隙从位于吸入口和叶轮之间的耐磨环径向向外延伸。磨损环和耐磨板各自分段制成，因此可以移除吸力侧衬里，并且由磨损环或耐磨板的吸入口或各个部分进行更换，作为浆料在组件上的磨损而不需要更换整个吸力侧衬里。磨损环和耐磨板耐磨表面由耐磨硬质合金制成。

75. 发明授权

US4668166A Pump 失效
标题翻译：泵
公开(公告)号：US4668166A
公开(公告)日：1987-05-26
申请号：US711523
申请日：1985-03-14
申请人： Karl Lutz
发明人： Karl Lutz
IPC分类号： F04D13/08 , F04D29/44 , F04D29/60
CPC分类号： F04D13/08 , F04D29/448 , F05B2230/601 , Y10S415/912
摘要： The pump, specifically, barrel pump, can be equipped with exchangeable impellers (8, 8'), which can be screwed onto the lower end of the drive shaft (9). One impeller (8) is designed as an axial impeller, while the other impeller (8') is designed as a radial impeller. The radial impeller needs as intake orifice (37), which is easily exchangeable inside the pump foot. So that both impellers can be installed into otherwise identical pumps, it is necessary to select a larger distance between the impeller and the guide wheel in the case of the radial impeller than in the case of the axial impeller and to furnish the guide wheel with commensurately longer guide blades, which have, at the connection with the forward curved section, a long straight area parallel to the axis. Furthermore, the transportation channel inside the guide wheel is narrowed at the beginning and widens in the course of the axial flowthrough.
摘要翻译：该泵，特别是桶式泵，可配备可更换的叶轮（8,8'），可以拧在驱动轴（9）的下端。一个叶轮（8）设计为轴向叶轮，而另一个叶轮（8'）设计为径向叶轮。径向叶轮需要作为进气孔（37），其可以在泵脚内部容易地更换。为了使两个叶轮可以安装在其他相同的泵中，在径向叶轮的情况下，与轴向叶轮的情况相比，需要选择叶轮和导向轮之间较大的距离，并且相应地提供导向轮较长的导向叶片在与前弯曲部分的连接处具有平行于轴线的长直线区域。此外，引导轮内部的输送通道在开始时变窄，并且在轴向流过的过程中变宽。

76. 发明授权

US4371310A Centrifugal pump recirculation diffuser 失效
标题翻译：离心泵再循环扩散器
公开(公告)号：US4371310A
公开(公告)日：1983-02-01
申请号：US492300
申请日：1974-07-23
申请人： John W. Henry, IV , David E. Cassel
发明人： John W. Henry, IV , David E. Cassel
IPC分类号： F04D29/44 , F04D29/66
CPC分类号： F04D29/448
摘要： A recirculation diffuser for centrifugal pumps that produces a continuousrising head capacity curve and at the same time reduces levels of impeller vane-frequency sound and other high level acoustic flow tones. The conventional vane diffuser in the pump casing at the periphery of the rotary impeller is modified by separating one of the side shrouds from the diffuser vanes thereby creating a recirculation flow path around the vanes from the outside high pressure to the inside low pressure side.
摘要翻译：用于离心泵的再循环扩散器，其产生连续上升的头容量曲线，并且同时降低叶轮叶片频率声音和其他高水平声流音调的水平。在旋转叶轮的周边处的泵壳体中的常规叶片扩散器通过将侧护罩中的一个从扩散器叶片分离而改变，从而从外部高压到内部低压侧形成围绕叶片的再循环流动路径。

77. 发明授权

US3154019A Shaftless submersible pump 失效
标题翻译：无轴式潜水泵
公开(公告)号：US3154019A
公开(公告)日：1964-10-27
申请号：US23693762
申请日：1962-11-13
申请人： CRANE CO
发明人： HOYT KENNETH C
IPC分类号： F04D13/10 , F04D29/44
CPC分类号： F04D13/10 , F04D29/448

78. 发明授权

US3103177A Self-priming centrifugal pump 失效
公开(公告)号：US3103177A
公开(公告)日：1963-09-10
申请号：US12548661
申请日：1961-07-20
申请人： BELL & GOSSETT CO
发明人： GATTO JOSEPH L , WYCKOFF ROBERT O
IPC分类号： F04D9/02 , F04D29/02 , F04D29/44
CPC分类号： F04D29/448 , F04D9/02 , F04D29/02

79. 发明授权

US2827268A Liquid transporting apparatus 失效
标题翻译：液体输送装置
公开(公告)号：US2827268A
公开(公告)日：1958-03-18
申请号：US39653953
申请日：1953-12-07
申请人： ADOLF STAAF GUSTAF
发明人： ADOLF STAAF GUSTAF
IPC分类号： B01F3/08 , B01F7/16 , C02F3/16 , E02B1/00 , F04D13/06 , F04D29/44
CPC分类号： B01F7/1635 , B01F3/0853 , C02F3/165 , E02B1/003 , F04D13/066 , F04D29/448 , Y02W10/15

80. 发明授权

US2566795A Rotor wheel for centrifugal pumps 失效
标题翻译：离心泵转子轮
公开(公告)号：US2566795A
公开(公告)日：1951-09-04
申请号：US79255347
申请日：1947-12-18
申请人： EMILE EGGER
发明人： EMILE EGGER
IPC分类号： F04D29/22 , F04D29/42
CPC分类号： F04D29/2205 , F04D29/4273 , F04D29/448 , F05D2250/51

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