公开(公告)号：US20170153058A1

公开(公告)日：2017-06-01

申请号：US15322740

申请日：2015-06-25

申请人： LINDE AKTIENGESELLSCHAFT

发明人： Dimitri Goloubev

IPC分类号： F25J3/04

CPC分类号： F25J3/04084 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0403 ,  F25J3/04054 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/042 ,  F25J3/04296 ,  F25J3/04345 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04721 ,  F25J3/04812 ,  F25J2205/04 ,  F25J2240/42 ,  F25J2245/50

摘要： A method and a device used to variably obtain a compressed-gas product by means of the low-temperature separation of air in a distillation column system. In a first operating mode, a first amount of first compressed-gas product is obtained, and, in a second operating mode, a second, smaller amount is obtained. In the first operating mode, a first amount of high-pressure column nitrogen is compressed in a nitrogen compressor and in the second operating mode, a second, larger amount is compressed in the nitrogen compressor.

公开(公告)号：US20170115053A1

公开(公告)日：2017-04-27

申请号：US15399297

申请日：2017-01-05

申请人： Jeremiah J. Rauch ,  Sophia J. Dowd ,  Andrew M. Warta ,  Catherine B. Sarigiannis ,  Wei Zhang

发明人： Jeremiah J. Rauch ,  Sophia J. Dowd ,  Andrew M. Warta ,  Catherine B. Sarigiannis ,  Wei Zhang

IPC分类号： F25J3/04 ,  F25J3/08

CPC分类号： F25J3/04024 ,  F25J1/0012 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04218 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04781 ,  F25J3/04812 ,  F25J3/08 ,  F25J2210/40 ,  F25J2215/54 ,  F25J2220/40 ,  F25J2230/30 ,  F25J2230/40 ,  F25J2240/46 ,  F25J2245/40

摘要： A system and method for separating air in an air separation plant is provided. The disclosed systems and methods divert a portion of the compressed, purified air stream to a bypass system configured to selectively produce a higher pressure compressed output stream or a lower pressure compressed output stream. The higher pressure and/or lower pressure compressed output streams are cooled in a main heat exchanger by indirect heat transfer with a plurality of product streams from the air separation plant and then rectified in the distillation column system. A second portion of the compressed, purified air stream is partially cooled in the main heat exchanger and expanding in a turbo-expander to produce power and an exhaust stream which is directed to the distillation column system of the air separation plant where it imparts additional refrigeration generated by the expansion of the compressed air stream in the turbo-expander.

公开(公告)号：US20170030643A1

公开(公告)日：2017-02-02

申请号：US15292856

申请日：2016-10-13

申请人： Jeremiah J. Rauch ,  Catherine B. Sarigiannis ,  Andrew M. Warta ,  Sophia J. Dowd

发明人： Jeremiah J. Rauch ,  Catherine B. Sarigiannis ,  Andrew M. Warta ,  Sophia J. Dowd

IPC分类号： F25J3/04

CPC分类号： F25J3/04781 ,  F25J3/04024 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04296 ,  F25J3/04412 ,  F25J3/04812 ,  F25J3/04824 ,  F25J2220/40 ,  F25J2230/40 ,  F25J2240/42

摘要： A method and apparatus for separating air in which production of the liquid products can be selectively varied between high and low production rates by varying the pressure ratio across a turboexpander used in imparting refrigeration with the use of a branched flow path. The branched flow path has a system of valves to selectively and gradually introduce a compressed refrigerant air stream into either a booster compressor branch having a booster compressor to increase the pressure ratio during high modes of liquid production or a bypass branch that bypasses the booster compressor to decrease the pressure ratio during low modes of liquid production. A recycle branch is connected to the booster compressor branch to allow compressed air to be independently recycled from the outlet to the inlet of the booster compressor during turndown from the high to the low liquid mode of liquid production to prevent surge.

摘要翻译： 一种用于分离空气的方法和装置，其中通过改变用于赋予制冷的涡轮膨胀机与使用分支流动路径的压力比，可以在高生产率和低生产率之间选择性地改变液体产物的生产。 分支流路具有阀系统，以选择性地并逐渐地将压缩的制冷剂空气流引导到具有增压压缩机的增压压缩机分支中，以在液体生产的高模式期间增加压力比，或者绕过增压压缩机的旁路分支 在液体生产的低模式下降低压力比。 再循环分支连接到增压压缩机分支，以允许压缩空气在从液体生产的高液体模式到低液体模式的调节期间独立地从出口延伸到增压压缩机的入口，以防止浪涌。

公开(公告)号：US20170003073A1

公开(公告)日：2017-01-05

申请号：US15105269

申请日：2014-12-19

申请人： L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE

发明人： Benoit DAVIDIAN

IPC分类号： F25J3/04 ,  F25J3/02 ,  F25B21/00

CPC分类号： F25J3/04278 ,  F25B21/00 ,  F25B2321/002 ,  F25J3/0209 ,  F25J3/0223 ,  F25J3/0233 ,  F25J3/0252 ,  F25J3/0257 ,  F25J3/0261 ,  F25J3/0266 ,  F25J3/0295 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0409 ,  F25J3/04157 ,  F25J3/04187 ,  F25J3/04206 ,  F25J3/04303 ,  F25J3/044 ,  F25J3/04412 ,  F25J3/04612 ,  F25J2200/02 ,  F25J2200/06 ,  F25J2200/40 ,  F25J2200/50 ,  F25J2200/70 ,  F25J2205/04 ,  F25J2210/70 ,  F25J2220/40 ,  F25J2220/82 ,  F25J2240/10 ,  F25J2250/40 ,  F25J2250/50 ,  F25J2260/02 ,  F25J2270/908 ,  Y02C10/12

摘要： A method for separating a gas mixture at subambient temperature, in which a gas mixture is sent to a heat-insulated chamber, cooled and separated in a column, and placed inside the chamber so as to produce at least two fluids, each of which is enriched with a component from the gas mixture. At least one fluid from the method can be heated inside the chamber or vaporized via heat exchange with at least one heating member including at least one element having magnetocaloric properties and built into a circuit configured to conduct a magnetic flux. The element is alternatingly in thermal contact with a cold source, made up of the fluid to be heated, and a hot source, made up of a source hotter than the fluid to be heated, and variation in the magnetic flux via the magnetocaloric effect generates electrical and/or mechanical energy.

摘要翻译： 一种在低于室温的气体混合物中分离气体混合物的方法，其中将气体混合物送入绝热室，在塔中冷却和分离，并置于室内，以产生至少两种流体，每种流体是 富含来自气体混合物的组分。 来自该方法的至少一种流体可以在室内加热或通过与包括至少一种具有磁热性质的元件的至少一个加热构件进行热交换而蒸发，并且内置于构造成导通磁通的电路中。 该元件与由待加热的流体组成的冷源交替地热接触，以及由比待加热的流体更热的源构成的热源，并且通过磁热效应产生磁通量的变化 电和/或机械能。

公开(公告)号：US20160356547A1

公开(公告)日：2016-12-08

申请号：US15157473

申请日：2016-05-18

申请人： Dimitri Goloubev

发明人： Dimitri Goloubev

IPC分类号： F25J3/04

CPC分类号： F25J3/04412 ,  F25J3/04024 ,  F25J3/04054 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04296 ,  F25J3/04381 ,  F25J3/04393 ,  F25J2230/20 ,  F25J2240/04

摘要： A method and air separation plant for the distillative cryogenic separation of feed air in a distillation column system of an air separation plant at different distillation pressures, wherein all of the feed air in a total air quantity is compressed to a first pressure level that is at least 4 to 5 bar above the highest of the distillation pressures, and from the total air quantity a first part air quantity is first cooled to a first temperature level of 130 to 170 K and then compressed to a second pressure level that is at least 10 bar above the first pressure level, and a second part air quantity is first cooled to a second temperature level of 110 to 150 K and then expanded to a third pressure level that is below the first pressure level.

摘要翻译： 一种用于在不同蒸馏压力下的空气分离设备的蒸馏塔系统中进料空气的蒸馏低温分离的方法和空气分离设备，其中将总空气量中的所有进料空气压缩至处于 在蒸馏压力的最高值以上至少4至5巴，并且从总空气量开始，第一部分空气量首先冷却至130至170K的第一温度水平，然后压缩至至少10℃的第二压力水平 并且第二部分空气量首先冷却至110至150K的第二温度水平，然后膨胀至低于第一压力水平的第三压力水平。

公开(公告)号：US20160123662A1

公开(公告)日：2016-05-05

申请号：US14899031

申请日：2014-07-10

申请人： Lars Kirchner ,  Dimitri Goloubev

发明人： Lars Kirchner ,  Dimitri Goloubev

IPC分类号： F25J3/04 ,  F25J3/06

CPC分类号： F25J3/04836 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0406 ,  F25J3/0409 ,  F25J3/04157 ,  F25J3/04169 ,  F25J3/04181 ,  F25J3/04206 ,  F25J3/04218 ,  F25J3/0426 ,  F25J3/04309 ,  F25J3/04351 ,  F25J3/04412 ,  F25J3/04418 ,  F25J3/04424 ,  F25J3/04496 ,  F25J3/04581 ,  F25J3/04618 ,  F25J3/04812 ,  F25J3/0483 ,  F25J3/0486 ,  F25J3/04878 ,  F25J3/04884 ,  F25J3/04957 ,  F25J3/0605 ,  F25J3/066 ,  F25J2200/06 ,  F25J2200/54 ,  F25J2205/32 ,  F25J2205/34 ,  F25J2205/62 ,  F25J2205/70 ,  F25J2210/50 ,  F25J2230/04 ,  F25J2230/24 ,  F25J2230/30 ,  F25J2230/42 ,  F25J2235/52 ,  F25J2240/70 ,  F25J2250/04 ,  F25J2250/40 ,  F25J2250/50

摘要： A method and device to produce oxygen by the low-temperature separation of air at variable energy consumption. A distillation column system comprises a high-pressure column, a low-pressure column and a main condenser, a secondary condenser and a supplementary condenser. Gaseous nitrogen from the high-pressure column is liquefied in the main condenser in indirect heat exchange with an intermediate liquid from the low-pressure column. A first liquid oxygen stream from the bottom of the low-pressure column is evaporated in the secondary condenser in indirect heat exchange with feed air to obtain a gaseous oxygen product. The supplementary condenser serves as a bottom heating device for the low-pressure column and is heated by means of a first nitrogen stream from the distillation column system, which nitrogen stream was compressed previously in a cold compressor.

摘要翻译： 通过在不同能量消耗下的空气的低温分离来产生氧气的方法和装置。 蒸馏塔系统包括高压塔，低压塔和主冷凝器，二级冷凝器和辅助冷凝器。 来自高压塔的气态氮在主冷凝器中与来自低压塔的中间液体间接热交换液化。 来自低压塔底部的第一液氧流在二次冷凝器中与进料空气间接热交换而蒸发，得到气态氧产物。 辅助冷凝器用作低压塔的底部加热装置，并通过来自蒸馏塔系统的第一氮气流加热，氮气流先前在冷压缩机中压缩。

公开(公告)号：US20160033196A1

公开(公告)日：2016-02-04

申请号：US14883844

申请日：2015-10-15

申请人： Henry E. Howard ,  Carl L. Schwarz ,  Ahmed F. Abdelwahab ,  Lee J. Rosen ,  Nick J. Degenstein ,  Reh-Lin Chen

发明人： Henry E. Howard ,  Carl L. Schwarz ,  Ahmed F. Abdelwahab ,  Lee J. Rosen ,  Nick J. Degenstein ,  Reh-Lin Chen

IPC分类号： F25J3/04 ,  F04D29/58 ,  F04D27/00 ,  F04D17/12

CPC分类号： F04D27/004 ,  F04D17/12 ,  F04D25/163 ,  F04D27/0261 ,  F04D27/0269 ,  F04D29/266 ,  F05D2260/311 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0409 ,  F25J3/04133 ,  F25J3/0429 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04781 ,  F25J3/04884 ,  F25J3/04957 ,  F25J2230/20 ,  F25J2230/24 ,  F25J2230/30 ,  F25J2230/40 ,  F25J2250/02

摘要： A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed driver assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed driver assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed driver assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.

公开(公告)号：US09175691B2

公开(公告)日：2015-11-03

申请号：US13644066

申请日：2012-10-03

申请人： Praxair Technology, Inc.

发明人： Michael J. Stanko ,  John H. Royal ,  Ahmed F. Abdelwahab ,  Carl L. Schwarz

IPC分类号： F04D27/02 ,  F04D29/66 ,  F04C28/14 ,  F04B49/20 ,  F04D29/46

CPC分类号： F04D27/004 ,  F04B37/08 ,  F04B49/06 ,  F04B49/103 ,  F04B49/20 ,  F04C28/14 ,  F04D17/122 ,  F04D25/06 ,  F04D27/0246 ,  F04D27/0261 ,  F04D27/0269 ,  F04D27/0284 ,  F04D29/053 ,  F04D29/286 ,  F04D29/462 ,  F04D29/464 ,  F04D29/668 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0409 ,  F25J3/04133 ,  F25J3/0429 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04781 ,  F25J3/04884 ,  F25J3/04957 ,  F25J2230/20 ,  F25J2230/24 ,  F25J2230/40 ,  F25J2250/02

摘要： A method and apparatus for producing and controlling flow rate of a compressed gas produced by a compression system having one or more stages of compression formed by a centrifugal compressor or compressors, inlet guide vanes to control flow through the compression stage or stages and an electric motor directly coupled to the stage or stages having a restricted speed zone within which vibrational modes can damage the electric motor. A desired flow rate is obtained by speed adjustment alone and with the inlet guide vanes positioned at 0° when the speed will lie above or below the restricted speed zone. Where a desired flow rate would require extended operation of the electric motor at a speed within the restricted speed zone, the speed is set to the uppermost level of the restricted speed zone and the desired flow rate is obtained through appropriate positioning of the inlet guide vanes.

摘要翻译： 一种用于生产和控制由压缩系统产生的压缩气体的流量的方法和装置，所述压缩系统具有由离心式压缩机或压缩机形成的一个或多个压缩阶段，入口导向叶片以控制通过压缩级或级的流动;以及电动机 直接耦合到具有限制速度区段的阶段或阶段，振动模式可在该阶段或阶段中损坏电动机。 通过单独的速度调节和当速度将位于限制速度区域之上或之下时入口导向叶片位于0°处获得期望的流速。 如果期望的流速需要在限制速度区内的速度下延长电动机的运行，则速度被设定到限制速度区的最高水平，并且通过入口导叶的适当定位获得所需的流速 。

公开(公告)号：US20150211539A1

公开(公告)日：2015-07-30

申请号：US14162898

申请日：2014-01-24

申请人： AIR PRODUCTS AND CHEMICALS, INC.

发明人： Larry Lingzhi Wang

IPC分类号： F04D27/00 ,  F04D29/58 ,  F04D17/12

CPC分类号： F04D17/12 ,  F04D17/14 ,  F04D25/163 ,  F04D27/0261 ,  F04D29/5826 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/04145 ,  F25J3/04957 ,  F25J2230/20 ,  F25J2230/24 ,  F25J2230/40

摘要： A system for compressing air includes: a variable speed driver having a drive shaft; at least one pre-main air compressor having at least one stage and adapted to receive and compress a flow of ambient or other air and to be driven by the drive shaft of the variable speed driver; at least one main air compressor having at least one stage on a first pinion shaft and adapted to receive and further compress a flow of compressed air transmitted from the at least one pre-main air compressor; at least one booster air compressor having at least one stage on a second pinion shaft and adapted to receive and further compress a flow of further compressed air transmitted from the at least one main air compressor; and another driver adapted to drive at least one of the first pinion shaft and the second pinion shaft through at least one transmission.

摘要翻译： 用于压缩空气的系统包括：具有驱动轴的变速驱动器; 至少一个预主空气压缩机具有至少一个级并且适于接收和压缩环境或其它空气的流并由所述变速驱动器的驱动轴驱动; 至少一个主空气压缩机，其具有在第一小齿轮轴上的至少一个级，并且适于接收并进一步压缩从所述至少一个主空气压缩机传递的压缩空气流; 至少一个增压空气压缩机，其在第二小齿轮轴上具有至少一个级，并且适于接收并进一步压缩从所述至少一个主空气压缩机传递的另外的压缩空气流; 以及适于通过至少一个变速器驱动第一小齿轮轴和第二小齿轮轴中的至少一个的另一个驱动器。

公开(公告)号：US20150007607A1

公开(公告)日：2015-01-08

申请号：US14492501

申请日：2014-09-22

申请人： Henry Edward Howard

发明人： Henry Edward Howard

IPC分类号： F25J1/00

CPC分类号： F25J3/04721 ,  F25J1/0002 ,  F25J1/0012 ,  F25J3/04024 ,  F25J3/0409 ,  F25J3/04187 ,  F25J3/0423 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04327 ,  F25J3/04412 ,  F25J3/04654 ,  F25J3/04666 ,  F25J3/04678 ,  F25J3/04684 ,  F25J3/04727 ,  F25J2205/02 ,  F25J2245/58

摘要： A method and apparatus for separating air in which an argon refining column of a distillation column system is reboiled with a liquid air stream. The argon refining column further refines crude argon produced by a crude argon column connected to a lower pressure column of the distillation column system. At least one intermediate reflux stream is formed, at least indirectly, from at least part of the liquid air stream, and is introduced into the lower pressure column at a level thereof above where a crude liquid oxygen column bottoms of a higher pressure column of such system is further refined to increase a liquid to vapor ratio below said level and therefore, argon recovery from the argon refining column.