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公开(公告)号：US6131891A
公开(公告)日：2000-10-17
申请号：US275249
申请日：1999-03-24
摘要： A novel fractionation column (1) internal structure consists of groups of fractionation trays in which the upper trays rest upon the bottommost tray of the group, which is the only tray of the group supported by the column wall. Preferably the downcomers (13) or disengagement plates of the upper tray rest upon the tops of the downcomers (13) of the next lower tray. Only the bottom tray is supported as by a ring (12) attached to the column.
摘要翻译： 一种新的分馏塔（1）内部结构由分馏塔组组成，其中上层托盘位于该组最底层的托盘上，该托盘是由塔壁支撑的组的唯一托盘。 优选地，上托盘的下导管（13）或分离板搁置在下一个下托盘的降液管（13）的顶部上。 只有底部托盘由连接到柱的环（12）支撑。
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公开(公告)号：US5975504A
公开(公告)日：1999-11-02
申请号：US38554
申请日：1998-03-11
CPC分类号： B01D3/22
摘要： High vapor and liquid capacity counterflow fractionation trays demonstrating superior turndown and performance characteristics include a number of parallel downcomers separated by planar tray decking having unique bidirectional slotted cap valve geometries. Several different arrangements of the bidirectional valves are presented. The raised trapezoids of the bidirectional valves may be arranged in two groups which each face the nearest downcomer, or arranged in lines parallel to the downcomer sidewalls such that trapezoids of neighboring rows face opposite directions. In a third embodiment these bidirectional slotted cap valves are only located in the regions of the decking sections located next to the downcomers.
摘要翻译： 高蒸汽和液体容量的逆流分馏塔显示了优越的调节和性能特征，包括由具有独特的双向开槽盖阀几何形状的平面托盘甲板隔开的许多平行降液管。 提出了双向阀的几种不同布置。 双向阀的升高的梯形可以被布置成两组，每组面向最接近的降液管，或者排列成与降液管侧壁平行的线，使得相邻行的梯形面向相反的方向。 在第三实施例中，这些双向开槽盖阀仅位于靠近降液管的甲板部分的区域中。
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公开(公告)号：US6113079A
公开(公告)日：2000-09-05
申请号：US275281
申请日：1999-03-24
CPC分类号： B01D3/22 , B01D3/20 , Y10T29/49826
摘要： A novel fractionation tray (1) includes slidable decking plates (4) located between and alongside parallel downcomers (2). The decking plates located between a pair of downcomers have sections which may be extended outward toward the edge of the tray to adapt the shape of the tray to the internal shape of the column in which it is installed. A method of installing the trays, with an upper tray being supported only by a lower tray, is also disclosed.
摘要翻译： 一种新颖的分级盘（1）包括位于平行降液管（2）之间并且与其平行的降液管（2）之间的可滑动的甲板板（4）。 位于一对降液管之间的甲板具有可以向托盘的边缘向外延伸的部分，以使托盘的形状适应其安装在其中的塔的内部形状。 还公开了一种安装托盘的方法，其中上托盘仅由下托盘支撑。
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公开(公告)号：US06095504A
公开(公告)日：2000-08-01
申请号：US275248
申请日：1999-03-24
摘要： A novel fractionation column (1) internal structure consists of bundles of fractionation trays in which each upper tray rests upon the next lower tray. Only the lowermost tray of the bundle is supported by the column wall. Preferably the downcomers (13) of the upper tray rest upon the tops of the downcomers (13) of the next lower tray. The two crescent-shaped terminal decking sections (19) on opposite edges of the tray are supported from below by arch-shaped structures (17) anchored to the next lower tray.
摘要翻译： 一种新颖的分馏塔（1）内部结构由分层塔板组成，其中每个上托盘搁置在下一个下托盘上。 只有塔的最下面的托盘被柱壁支撑。 优选地，上托盘的下导管（13）搁置在下一个下托盘的降液管（13）的顶部上。 在托盘的相对边缘上的两个新月形的端子板部分（19）从下方被拱形结构（17）支撑，锚定到下一个下部托盘。
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公开(公告)号：US06293528B1
公开(公告)日：2001-09-25
申请号：US09277072
申请日：1999-03-26
IPC分类号： B01F304
CPC分类号： B01D3/225 , B01D3/008 , B01D3/16 , B01D3/20 , B01D3/22 , B01J2219/30 , B01J2219/32
摘要： The flooding capacity of a fractionation tray (2) is increased by the addition of at least one layer of low surface area grids (3) above the inlet to the downcomers (6,12) located on the tray (2). The grids (3) extend upward for a distance equal to one to four times the depth of the downcomers. The grids may rest upon the top edge of the downcomers or on the tray decking between the top portions of the downcomer sidewalls.
摘要翻译： 通过在位于托盘（2）上的降液管（6,12）的入口上方添加至少一层低表面积网格（3）来提高分馏盘（2）的淹水能力。 格栅（3）向上延伸等于降液管深度的一至四倍的距离。 网格可以搁置在降液管的顶部边缘或者在降液管侧壁的顶部之间的托盘上。
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6.发明授权Multiple-downcomer fractionation tray with vapor directing slots and extended downcomer baffles 失效具有蒸气导向槽和延伸降液管挡板的多降液管分馏塔
公开(公告)号：US5382390A
公开(公告)日：1995-01-17
申请号：US188181
申请日：1994-01-28
摘要： The vapor capacity of multiple downcomer type fractionation trays is increased by the provision of vapor directing slots in the tray deck, with the slots being oriented toward the closest downcomer to reduce froth height. The slots located in the relatively narrow deck area between downcomers are accordingly divided into two sets which point in opposite directions. Vertical baffles are provided above the downcomer inlets. The baffles preferably extend upward to slightly below the lower surface of the next higher tray, with the upper edge of the baffles being notched to accommodate the downcomers of this next higher tray.
摘要翻译： 通过在托盘甲板中设置蒸汽导向槽，多个降液管式分馏塔的蒸汽容量增加，槽的方向朝向最靠近的降液管，以减少泡沫高度。 因此，位于降液管之间的相对窄的甲板区域中的狭槽因此被分成两组，其指向相反的方向。 垂直挡板设置在降液管入口的上方。 挡板优选地向上延伸到略低于下一个较高托盘的下表面的位置，其中挡板的上边缘被切口以容纳该下一较高托盘的降液管。
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公开(公告)号：US5707563A
公开(公告)日：1998-01-13
申请号：US711763
申请日：1996-09-05
CPC分类号： B01D3/225 , B01D3/22 , B01J19/305
摘要： High capacity, low cost fractionation trays are formed from a number of adjacent triangular (v-shaped) downcomer modules. The trays are free of the horizontal perforated decking surface of conventional trays. The downcomer modules have perforations only in a bottom region for liquid passage and in an upper region for vapor passage, with the central portion of the two inclined downcomer sidewalls being imperforate. The difference in elevation between the bottom region and upper region is considerably larger than a ripple tray. A layer of packing material may be provided close to or adjacent the bottom surface of the tray.
摘要翻译： 大容量，低成本的分级塔板由多个相邻的三角（V形）降液管模块形成。 托盘没有常规托盘的水平穿孔板表面。 降液管模块仅在用于液体通道的底部区域和用于蒸汽通过的上部区域中具有穿孔，其中两个倾斜的下降管侧壁的中心部分是无孔的。 底部区域和上部区域之间的高度差异大大大于波纹盘。 一层包装材料可以靠近或靠近托盘的底表面而设置。
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公开(公告)号：US5209875A
公开(公告)日：1993-05-11
申请号：US814541
申请日：1991-12-30
IPC分类号： B01D3/20
CPC分类号： B01D3/20
摘要： The efficiency of multiple downcomer type fractionation trays is improved by the provision of an individual antipenetration pan located under each set of openings in the bottom of the box-like downcomers. The pans preferably comprise perforated planar sheets and have raised lips along two opposing edges to retard significant liquid runoff along the edges parallel to the downcomer end walls. The pans are parallel to the main tray surface and located intermediate the downcomers and the upper surface of the next lower tray.
摘要翻译： 通过提供位于箱状降液管底部的每组开口下方的单独的防渗透盘来提高多个降液管式分级塔板的效率。 平底锅优选地包括穿孔的平板，并且沿着两个相对的边缘具有凸起的唇缘，以沿着平行于降液管端壁的边缘延迟显着的液体径流。 平底锅平行于主托盘表面并且位于下导管和下一个下托盘的上表面的中间。
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公开(公告)号：US07028995B2
公开(公告)日：2006-04-18
申请号：US10632001
申请日：2003-07-28
IPC分类号： B01F3/04
摘要： A mass transfer column (20) is provided with an external shell defining an open internal region. Centrifugal contact trays (26) and return contact trays (28) are positioned in an alternating and vertically spaced apart relationship within the open internal region. Each contact tray has a plurality of vapor passages (33) for allowing vapor to flow upwardly through the tray deck to interact with liquid on the surface of the tray deck. At least one center downcomer (40) extends downwardly at an opening in the return tray deck and has a lower discharge outlet spaced above the centrifugal tray deck for feeding liquid onto the centrifugal tray deck. A rotation-inducing element may be placed within the center downcomer (40) to induce a rotational motion in liquid exiting the center downcomer (40). At least one annular downcomer (36) extends downwardly the periphery of the centrifugal tray deck and has a lower discharge outlet spaced about the return tray deck for feeding liquid onto the return tray deck. At least one of the centrifugal contact trays is positioned a greater distance above an adjacent return contact tray than the distance at least one of the return contact trays is positioned above an adjacent centrifugal contact tray. The mass transfer column (20) may further include a single support ring (64), one or more baffles (68) or combinations thereof.
摘要翻译： 质量传递塔（20）设置有限定开放内部区域的外部壳体。 离心接触托盘（26）和返回接触托盘（28）在开放内部区域内以交替和垂直间隔开的关系定位。 每个接触托盘具有多个蒸汽通道（33），用于允许蒸汽向上流过托盘面板，以与托盘面板的表面上的液体相互作用。 至少一个中心下导管（40）在返回托盘甲板的开口处向下延伸，并且具有在离心托盘甲板上方间隔开的较低排放出口，用于将液体供给到离心托盘甲板上。 旋转诱导元件可以放置在中心降液管（40）内以在离开中心降液管（40）的液体中引起旋转运动。 至少一个环形降液管（36）向下延伸离心托盘甲板的周边，并且具有围绕返回托盘甲板间隔开的较低排放出口，用于将液体供给到返回托盘甲板上。 离心接触托盘中的至少一个在相邻的返回接触托盘之上定位在比相邻的离心接触托盘的上方至少一个返回接触托盘的距离更远的位置。 传质塔（20）还可包括单个支撑环（64），一个或多个挡板（68）或其组合。
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公开(公告)号：US5244604A
公开(公告)日：1993-09-14
申请号：US997805
申请日：1992-12-29
IPC分类号： B01D3/20
CPC分类号： B01D3/20
摘要： The efficiency of multiple downcomer type fractionation trays is increased by increasing the length of the liquid flow path and providing Lewis Case II point to plate efficiency enhancement. Baffles (7) extending axially along the vertical axis of a fractionation column divide the intertray volumes of the column into defined vapor passageways. A pair of inclined liquid deflecting baffles (3) over each downcomer (10) connects the outlets and inlets of vertically adjacent downcomers and provides a crisscrossing liquid flow path. Beds (14) of vapor-liquid contacting material increase tray efficiency.
摘要翻译： 通过增加液体流动路径的长度并提供Lewis Case II点提高板效率，可以提高多个降液管式分馏塔的效率。 沿着分馏塔的垂直轴线轴向延伸的挡板（7）将塔的插入体积分成限定的蒸气通道。 每个降液管（10）上的一对倾斜的液体偏转挡板（3）连接垂直相邻的降液管的出口和入口，并提供交叉的液体流动路径。 气 - 液接触材料床（14）提高了托盘效率。
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