公开(公告)号：US5625112A

公开(公告)日：1997-04-29

申请号：US530982

申请日：1995-09-20

申请人： Elias G. Ragi ,  Thomas J. Godry

发明人： Elias G. Ragi ,  Thomas J. Godry

IPC分类号： C07C2/58 ,  C07C2/62 ,  F28F27/02 ,  C07C2/56

CPC分类号： F28F9/0268 ,  C07C2/58 ,  C07C2/62 ,  F28F13/187 ,  F28D2021/0022 ,  F28D2021/0064

摘要： A method and apparatus for indirectly heating a mixed phase stream by contact with a boiling surface located on the inside of the plurality of heat exchange tubes. Improved vaporization of the stream is achieved by equalizing the liquid distribution and the ratio of liquid and vapor entering each tube to overcome poor boiling film heat transfer. The invention uses a means for subdividing the flow entering the heat exchanger into a plurality of streams with each of the divided streams discharging directly into a heat exchange tube. The means for dividing the stream can include baffle arrangements or plugs providing pressure drop at the inlets to the tubes. This method and apparatus is particularly useful in contactors for the sulfuric acid catalyzed alkylation of hydrocarbons.

摘要翻译： 一种通过与位于多个热交换管内侧的沸点接触间接加热混合相物流的方法和装置。 通过均衡液体分布和进入每个管的液体和蒸汽的比例来克服差的沸腾膜热传递来实现流的改进的汽化。 本发明使用用于将进入热交换器的流细分为多个流的装置，其中每个分流直接排放到热交换管中。 用于分流的装置可以包括挡板装置或塞子，其在入口处提供压降。 该方法和装置在烃的硫酸催化烷基化接触器中特别有用。

公开(公告)号：US5413674A

公开(公告)日：1995-05-09

申请号：US997252

申请日：1992-12-23

申请人： Elias G. Ragi

发明人： Elias G. Ragi

IPC分类号： B01D1/26

CPC分类号： B01D1/26 ,  Y10S159/08 ,  Y10S159/32

摘要： A black liquor process for paper pulping uses a nucleic boiling surface in a series of multi-effective evaporators. The nucleic boiling surface may be used to retube all effects or a single effect.

摘要翻译： 纸浆制浆的黑液方法在一系列多效蒸发器中使用核酸沸腾表面。 核酸沸腾表面可用于重新整理所有效果或单一效果。

公开(公告)号：US5811625A

公开(公告)日：1998-09-22

申请号：US566623

申请日：1995-12-04

申请人： Elias G. Ragi ,  Thomas J. Godry

发明人： Elias G. Ragi ,  Thomas J. Godry

IPC分类号： C07C2/58 ,  C07C2/62 ,  F28F27/02 ,  C07C2/56

CPC分类号： C07C2/58 ,  C07C2/62 ,  F28F9/0268

摘要： The use of flow restrictors at the inlet of reactor cooling tubes significantly improves heat transfer and process performance in an acid catalyzed alkylation reaction process. Improved vaporization of the stream is achieved by equalizing the liquid distribution and the ratio of liquid and vapor entering each tube to overcome poor boiling film heat transfer. The invention relocates available pressure drop for equally subdividing the flow entering the heat exchanger into a plurality of heat exchanger inlet streams. Flow restrictors provide pressure drop at the inlets to each tube. This method and apparatus is particularly useful in contactors for the sulfuric acid catalyzed alkylation of olefinic and isoparaffinic hydrocarbons.

摘要翻译： 在反应器冷却管入口处使用限流器在酸催化的烷基化反应过程中显着地改善了热传递和加工性能。 通过均衡液体分布和进入每个管的液体和蒸汽的比例来克服差的沸腾膜热传递来实现流的改进的汽化。 本发明重新定位可用的压降，以将进入热交换器的流均等地分成多个热交换器入口流。 流量限制器在每个管的入口处提供压降。 该方法和装置在用于烯烃和异链烷烃的硫酸催化烷基化的接触器中特别有用。

公开(公告)号：US4253519A

公开(公告)日：1981-03-03

申请号：US51190

申请日：1979-06-22

申请人： Leslie C. Kun ,  Elias G. Ragi

发明人： Leslie C. Kun ,  Elias G. Ragi

IPC分类号： F28F13/04 ,  F28B9/08 ,  F28F13/18 ,  F28F17/00

CPC分类号： F28F17/005 ,  F28B9/08 ,  F28F13/18 ,  Y10S165/198

摘要： A system for enhancing the performance of the external condensing surfaces of the vertical tubes of a film condensation heat exchanger comprising a network of enhancement elements adjacent the tube surface to collect the condensate into rivulets and connecting elements wrapped around and bonded to the enhancement elements to maintain the latter in their proper positions. In a preferred embodiment, both the enhancement and connecting elements are made of a wettable plastic polymeric material in the form of a sleeve to slip over the condenser tube as a prefabricated unit.

摘要翻译： 一种用于增强薄膜冷凝热交换器的垂直管的外部冷凝表面的性能的系统，其包括与管表面相邻的增强元件网络，以将冷凝物收集到铆接件中，并将包裹并连接到增强元件的连接元件保持 后者在适当的位置。 在优选实施例中，增强和连接元件都是由套筒形式的可湿性塑料聚合材料制成，以预制单元滑过冷凝管。

公开(公告)号：US4154293A

公开(公告)日：1979-05-15

申请号：US721861

申请日：1976-09-09

申请人： Gary W. Fenner ,  Elias G. Ragi

发明人： Gary W. Fenner ,  Elias G. Ragi

IPC分类号： F28F13/02 ,  F28F13/18

CPC分类号： F28F13/185 ,  Y10T428/12104

摘要： An inner surface substrate of metal tubes is provided with a single layer of randomly distributed metal bodies bonded to the substrate, spaced from each other, and substantially surrounded by the substrate to form body void space.

摘要翻译： 金属管的内表面基板设置有与基板结合的单层随机分布的金属体，彼此间隔开并且基本上被基板包围以形成主体空隙空间。

公开(公告)号：US5531266A

公开(公告)日：1996-07-02

申请号：US174510

申请日：1993-12-28

申请人： Elias G. Ragi ,  Thomas J. Godry

发明人： Elias G. Ragi ,  Thomas J. Godry

IPC分类号： C07C2/58 ,  C07C2/62 ,  F28F27/02 ,  F28F9/00

CPC分类号： F28F9/0268 ,  C07C2/58 ,  C07C2/62 ,  F28F13/187 ,  F28D2021/0022 ,  F28D2021/0064

摘要： A method and apparatus for indirectly heating a mixed phase stream by contact with a boiling surface located on the inside of the plurality of heat exchange tubes. Improved vaporization of the stream is achieved by equalizing the liquid distribution and the ratio of liquid and vapor entering each tube to overcome poor boiling film heat transfer. The invention uses a means for subdividing the flow entering the heat exchanger into a plurality of streams with each of the divided streams discharging directly into a heat exchange tube. The means for dividing the stream can include baffle arrangements or plugs providing pressure drop at the inlets to the tubes. This method and apparatus is particularly useful in contactors for the sulfuric acid catalyzed alkylation of hydrocarbons.

摘要翻译： 一种通过与位于多个热交换管内侧的沸点接触间接加热混合相物流的方法和装置。 通过均衡液体分布和进入每个管的液体和蒸汽的比例来克服差的沸腾膜热传递来实现流的改进的汽化。 本发明使用用于将进入热交换器的流细分为多个流的装置，其中每个分流直接排放到热交换管中。 用于分流的装置可以包括挡板装置或塞子，其在入口处提供压降。 该方法和装置在烃的硫酸催化烷基化接触器中特别有用。

公开(公告)号：US5091075A

公开(公告)日：1992-02-25

申请号：US549324

申请日：1990-07-06

申请人： Patrick S. O'Neill ,  Elias G. Ragi ,  Thomas J. Godry

发明人： Patrick S. O'Neill ,  Elias G. Ragi ,  Thomas J. Godry

IPC分类号： C10G35/04

CPC分类号： C10G35/04

摘要： A process for the reforming of hydrocarbons is improved by the use of an enhanced nucleate boiling surface in a selected portion of the feed effluent heat exchanger. In a vertical type heat exchanger where the reforming feedstream enters at a lower end of the heat exchanger and is at least partially vaporized in the heat exchanger by contact with a reforming effluent stream that enters an upper end of the heat exchanger and is at least partially condensed therein, an enhanced nucleate boiling surface is formed on the heat exchange surface that is in contact with the entering liquid phase portion of the stream feed. The enhanced nucleate boiling surface increases the amount of condensing that takes place on the opposite side of the heat exchange surface in a boiling-condensing zone. The use of the enhanced nucleate boiling surface in the boiling zone of the heat exchanger not only improves the heat transfer coefficient on the boiling side of the tube wall surface, but also the overall heat transfer on the opposite condensing side of the tube wall surface. The addition of the enhanced nucleate boiling surface provides a substantial increase in the overall heat exchange and the overall heat transfer coefficients for the heat exchanger.

摘要翻译： 通过在进料流出物热交换器的选定部分中使用增强的核沸腾表面来提高烃的重整方法。 在立式热交换器中，重整进料流进入热交换器的下端，并且在热交换器中至少部分地蒸发，其与进入热交换器的上端的重整流出物流接触并且至少部分地 在其中冷凝的热交换表面上形成增强的核沸腾表面，该热交换表面与流进料的进入液相部分接触。 增强的核沸腾表面增加了在沸腾冷凝区域中在热交换表面的相反侧发生的冷凝量。 在热交换器的沸腾区域中使用增强的核沸腾表面不仅提高了管壁表面的沸腾侧的传热系数，而且改善了管壁表面的相对冷凝侧上的总传热。 增加的核沸腾表面的添加提供了热交换器的总体热交换和总传热系数的显着增加。

公开(公告)号：US4232728A

公开(公告)日：1980-11-11

申请号：US15425

申请日：1979-02-26

申请人： Gary W. Fenner ,  Elias G. Ragi

发明人： Gary W. Fenner ,  Elias G. Ragi

IPC分类号： F28F13/08 ,  F28F13/18

CPC分类号： F28F13/185 ,  F28F13/08

摘要： An inner surface substrate of metal tubes is provided with a single layer of randomly distributed metal bodies bonded to the substrate, spaced from each other, and substantially surrounded by the substrate to form body void space.

摘要翻译： 金属管的内表面基板设置有与基板结合的单层随机分布的金属体，彼此间隔开并且基本上被基板包围以形成主体空隙空间。