公开(公告)号：US5240607A

公开(公告)日：1993-08-31

申请号：US992152

申请日：1992-12-17

申请人： Roger H. Asay ,  Gordon T. Galbraith

发明人： Roger H. Asay ,  Gordon T. Galbraith

IPC分类号： B01D29/11

CPC分类号： B01D29/114 ,  B01D2201/0438

摘要： A filter element adapter assembly is set forth for attaching a linearly extending filter element having a wall structure formed of a filtering material and having first and second end closures, the second end closure having a passageway therethrough and defining a filter element fitting to an attachment structure. The assembly comprises first and second tubular adapters and an insert seal formulated of a material which is softer than the adapters. Large screw threads are provided on the seal and on the portions of the adapters which screw onto the seal. The adapters abut a flange on the seal to provide a leak free arrangement.

摘要翻译： 一种过滤元件适配器组件被设置用于附接具有由过滤材料形成的壁结构并且具有第一和第二端盖的线性延伸的过滤器元件，第二端盖具有穿过其中的通道，并且限定过滤元件配合到附接结构 。 组件包括第一和第二管状适配器以及由比适配器柔软的材料制成的插入物密封件。 在密封件和适配器的拧紧到密封件上的部分上设有大的螺纹。 适配器邻接密封件上的凸缘以提供无泄漏的布置。

公开(公告)号：US4636266A

公开(公告)日：1987-01-13

申请号：US617635

申请日：1984-06-06

申请人： Roger H. Asay

发明人： Roger H. Asay

IPC分类号： C23C8/14

CPC分类号： C23C8/14

摘要： A method is set forth of passivating at least a portion of a surface of a stainless steel member to retard buildup of radioactive materials on such surface portion. The surface portion is preferably polished until it is substantially featureless at 100 times magnification. The polished surface is exposed to a gaseous oxygen source at a temperature of 150.degree. C. to 450.degree. C. for at least about five hours. When a pipe passivated as set forth above is utilized in a water system of a light water nuclear reactor, radioactive buildup on the surface is significantly reduced as compared to pipes which have been passivated by exposure to liquid during the passivating process.

摘要翻译： 阐述了钝化不锈钢构件的表面的至少一部分以阻止放射性材料在这种表面部分上积累的方法。 表面部分优选被抛光直到其在100倍放大率下几乎无特征。 抛光表面在150℃至450℃的温度下暴露于气态氧源至少约5小时。 当在轻水核反应堆的水系中利用如上所述钝化的管道时，与在钝化过程中暴露于液体时被钝化的管道相比，表面上的放射性累积显着降低。

公开(公告)号：US5537450A

公开(公告)日：1996-07-16

申请号：US189311

申请日：1994-01-31

申请人： Roger H. Asay ,  Darrel L. Chase ,  M. Douglas McGinnis ,  Dennis L. Oltmans ,  Marc S. Sattler

发明人： Roger H. Asay ,  Darrel L. Chase ,  M. Douglas McGinnis ,  Dennis L. Oltmans ,  Marc S. Sattler

IPC分类号： G21C17/04 ,  G21C17/00

CPC分类号： G21C17/044

摘要： Failed fuel cladding in light water reactors can lead to premature reactor shutdown for removal of the failed fuel bundles from the core. The lost power and associated fuel replacement costs are astronomically high, approaching a million dollars per day in near term costs. Additionally, the long term affect on an operating plant are the release and distribution around the plant of long-lived fission products which increase radiation levels and impose increased radiological protection procedures. A method has been developed which allows for on-line early detection of failed fuel elements while the plant is operating through flowing off-gas through a conduit to a gamma spectrograph with a time delay to allow interfering short lived isotopes to decay and then analyzing for gamma radiation from at least one of the nuclides Kr-85m, Kr-87, Kr-88, Xe-133, Xe-135, Xe-135m and Xe-138. The implementation of this technology achieves significant cost savings for the operating utility and allows for continued operation for extended periods of time before the plant is shutdown for removal of the failed elements.

摘要翻译： 轻水反应堆中失效的燃料包层可导致过早的反应堆关闭，以从核心中去除失效的燃料束。 失去的电力和相关的燃料更换成本是天文数字高的，在短期成本中每天接近一百万美元。 此外，对经营厂房的长期影响是长寿命裂变产物厂房周边的释放和分布，从而提高辐射水平，并施加放射防护措施。 已经开发了一种方法，其允许在故障燃料元件的在线早期检测的同时，通过将废气通过导管流过伽马光谱仪进行操作，其具有时间延迟以允许干扰短寿命同位素衰变，然后分析 来自核素Kr-85m，Kr-87，Kr-88，Xe-133，Xe-135，Xe-135m和Xe-138中的至少一种的γ射线。 该技术的实施为操作实用程序实现了显着的成本节省，并且允许在工厂关闭之前持续运行长时间以移除故障元件。

公开(公告)号：US5062291A

公开(公告)日：1991-11-05

申请号：US332619

申请日：1989-04-03

申请人： Roger H. Asay

发明人： Roger H. Asay

IPC分类号： G01F25/00

CPC分类号： G01F25/0015 ,  G01F25/0023

摘要： A method and apparatus are set forth for calibration of a flowmeter in a system having a condensible fluid flowing in it. A known volume of a liquid test solution is inserted into the system flowpath upstream of the flowmeter with the solution having dissolved in it a known concentration of an inert gas. The indicated flowrate is observed on the flowmeter. The concentration of the inert gas present in the condensed fluid downstream of the flowmeter is measured. This allows a determination of the true flowrate which corresponds to the flowrate indicated by the flowmeter. The method and apparatus of the invention are particularly useful wherein the system is a heat transfer system of a power plant.

摘要翻译： 提出了一种在具有在其中流动的可冷凝流体的系统中校准流量计的方法和装置。 将已知体积的液体测试溶液插入到流量计上游的系统流路中，溶液中已经溶解已知浓度的惰性气体。 在流量计上观察指示的流量。 测量存在于流量计下游的冷凝流体中的惰性气体的浓度。 这允许确定对应于由流量计指示的流量的真实流量。 本发明的方法和装置特别有用，其中系统是发电厂的传热系统。

公开(公告)号：US4913803A

公开(公告)日：1990-04-03

申请号：US178529

申请日：1988-04-07

申请人： Jerome E. Earls ,  Dane T. Snyder

发明人： Jerome E. Earls ,  Dane T. Snyder

IPC分类号： B07B1/28 ,  B01J8/20 ,  B01J47/04 ,  B01J49/00 ,  B03B5/62 ,  B03B7/00

CPC分类号： B03B7/00 ,  B01J47/04 ,  B01J49/0043 ,  B03B5/623

摘要： A mixture of two sets of similarly sized particles having different terminal velocities in a separation liquid is separated. This is done by removing either the smaller particle portion of the set having the greater terminal velocity, or the larger particle portion of the set having the lesser terminal velocity, or both, for example, by sieving. The resulting mixture is introduced into a tube in which the separation liquid is flowing upwardly. This eliminates intermixing of the fines of one set with the larger particles of the other set. The flow of liquid in the tube can be arranged to provide laminar flow separated by two regions of turbulent flow to improve separation of particles. Anion and cation exchange resin particles can be separated in this manner, regenerated and returned to service.

摘要翻译： 分离在分离液体中具有不同末端速度的两组相似尺寸的颗粒的混合物。 这通过例如通过筛分除去具有较大终端速度的组的较小颗粒部分或具有较小终端速度的组的较大颗粒部分或两者来完成。 将所得混合物引入其中分离液体向上流动的管中。 这消除了一组的细粒与另一组的较大颗粒的混合。 管中的液体流可以布置成提供由两个湍流区域分离的层流，以改善颗粒的分离。 阴离子和阳离子交换树脂颗粒可以以这种方式分离，再生并返回使用。