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公开(公告)号：US06319719B1
公开(公告)日：2001-11-20
申请号：US09428691
申请日：1999-10-28
IPC分类号： G01N3386
CPC分类号： G01N33/491 , B01L3/502746 , B01L3/502753 , B01L2300/0681 , B01L2300/0825 , B01L2400/0406 , B01L2400/086 , Y10T436/25125 , Y10T436/25375
摘要： A capillary hematocrit separation structure is included within a housing having a fluid inlet port, a reaction region, and a capillary pathway connecting the inlet port and the reaction region. The capillary pathway is dimensioned so that the driving force for the movement of liquid through the capillary pathway arises from capillary pressure. A plurality of obstructions are fixed in the capillary pathway, each obstruction having a concave portion facing toward the vented reaction region on the down stream side of the obstructions as viewed with reference to a liquid flowing from the inlet port to the reaction region. The capillary pathway in a hematocrit separation structure for a single drop sample size includes about 105 obstructions, each obstruction including a concave portion having a volume of between about 10−4 to 10−5 &mgr;l for selectively receiving hematocrit.
摘要翻译： 毛细管血细胞比容分离结构包括在具有连接入口和反应区域的流体入口，反应区域和毛细管道的壳体内。 毛细管路径的尺寸被设计成使得液体通过毛细通路的运动的驱动力由毛细管压力引起。 多个障碍物固定在毛细管路径中，每个阻塞件相对于从入口流向反应区域的液体观察，在障碍物的下游侧具有面向通气的反应区域的凹部。 用于单滴样品尺寸的血细胞比容分离结构中的毛细血管通路包括约105个障碍物，每个梗阻包括体积在约10-4至10-5μm之间的凹部，用于选择性地接受血细胞比容。
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公开(公告)号：US06451264B1
公开(公告)日：2002-09-17
申请号：US09493883
申请日：2000-01-28
IPC分类号： B01L302
CPC分类号： B01L3/502746 , B01L2300/0861 , B01L2300/0887 , B01L2400/0406 , B01L2400/086
摘要： A capillary pathway is dimensioned so that the driving force for the movement of liquid through the capillary pathway arises from capillary pressure. A plurality of groups of microstructures are fixed in the capillary pathway within discrete segments of the pathway for facilitating the transport of a liquid around curved portions of pathway. Capillary channels can be coupled between two adjacent groups of microstructures to either the inner and outer wall of the capillary pathway. The width of each capillary channel is generally smaller than the capillary pathway to which it is connected, and can be varied to achieve differences in fill initiation. The grouped microstructures are spaced from each other within each group on a nearest neighbor basis by less than that necessary to achieve capillary flow of liquid with each group. Each group of microstructures are spaced from any adjacent group by an inter-group space greater than the width of any adjacent capillary channels connected to the capillary pathway. Generally, the microstructures are centered on centers which are equally spaced from each other, and microstructures that are located closer to the inner wall of any curve in the capillary pathway are generally smaller than the microstructures located closer to the outer wall. This combination of structural features causes fluids to flow through the capillary pathway so that the rate of flow is somewhat non-uniform as the fluid travels around curved portions of the capillary pathway, the meniscus appearing to pause momentarily at each inter-group space, the flow being somewhat slower near the inner wall of a curved portion than near the outer wall.
摘要翻译： 毛细管路径的尺寸被设计成使得液体通过毛细通道的运动的驱动力来自于毛细管压力。 多个微结构组在毛细管路径中固定在通路的离散区段内，以便于液体在路径的弯曲部分周围传输。 毛细管通道可以在两个相邻的微结构组之间连接到毛细管通路的内壁和外壁。 每个毛细通道的宽度通常小于其连接的毛细管路径，并且可以变化以实现填充开始的差异。 分组的微结构在每个组内以最近邻基础彼此间隔开，小于实现每个组的液体的毛细管流所必需的。 每组微结构与任何相邻组间隔开大于连接到毛细管路径的任何相邻毛细通道的宽度的组间空间。 通常，微结构以相互间隔相等的中心为中心，并且位于更靠近毛细管路径中任何曲线的内壁的微结构通常小于位于更靠近外壁的微结构。 结构特征的这种组合使得流体流过毛细管路径，使得当流体在毛细管路径的弯曲部分周围行进时，流动速率有些不均匀，弯月面在每个组间空间暂时暂停， 在靠近外壁的弯曲部分的内壁附近的流动稍慢。
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公开(公告)号：US06179048B2
公开(公告)日：2001-01-30
申请号：US09143693
申请日：1998-08-28
IPC分类号： F28F1900
CPC分类号： F28F9/06 , F28F9/0229
摘要： A tube-and-shell heat exchanger system is disclosed which provides for partial heating of the cooler stream as it flows through a first compartment in the shell and conducting the partially heated stream to the outlet end of a second compartment in the shell to maintain the outlet end of the tubes at a higher temperature. The higher temperature at the outlet ends of the tubes avoids rapid fouling of tubes near the outflow end. There are provided slide bushings for tubes passing between the compartments in the shell. The slide bushings make possible heating of greater volumes of the cooler stream and maintaining the outlet end of tubes at higher temperature, while extracting more heat from the hot stream. The slide bushings provided may also be used to replace conventional expansion joints. The system is particularly useful in carbon black plants, where the hot smoke stream containing combustion gases and carbon black is used to preheat the air stream used for burning fuel in the reactor of the plant.
摘要翻译： 公开了一种管壳式热交换器系统，其提供了当冷却器流流过壳体中的第一隔室并将部分加热的流传导到壳体中的第二隔室的出口端部分加热时， 在较高温度下管的出口端。 管的出口端的较高温度避免了流出端附近管道的快速结垢。 提供了用于通过壳体的隔室之间的管的滑动衬套。 滑动衬套可以加热较大体积的冷却器流并且将管的出口端保持在更高的温度，同时从热流中提取更多的热量。 所提供的滑动衬套也可用于替代常规的膨胀节。 该系统在炭黑设备中特别有用，其中含有燃烧气体和炭黑的热烟气流用于预热用于在工厂的反应器中燃烧燃料的空气流。
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