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71. 发明授权

US4668260A High-purity nitrogen gas production equipment 失效
标题翻译：高纯氮气生产设备
公开(公告)号：US4668260A
公开(公告)日：1987-05-26
申请号：US845278
申请日：1986-03-12
申请人： Akira Yoshino
发明人： Akira Yoshino
IPC分类号： F17C9/04 , F25J3/04 , F25J3/00
CPC分类号： F25J3/044 , F17C9/04 , F25J3/042 , F25J3/04218 , F25J3/04254 , F25J3/0426 , F25J3/0443 , F25J3/04636 , F25J3/04824 , F25J3/0486 , F17C2205/0326 , F17C2205/0341 , F17C2221/011 , F17C2221/014 , F17C2221/05 , F17C2223/0161 , F17C2223/033 , F17C2225/0123 , F17C2227/0311 , F17C2227/039 , F17C2227/045 , F17C2250/0408 , F17C2250/0439 , F17C2265/015 , F25J2200/30 , F25J2200/50 , F25J2200/74 , F25J2205/60 , F25J2210/42 , F25J2245/40 , F25J2245/42 , F25J2250/20 , F25J2250/40 , F25J2250/50 , F25J2290/10 , F25J2290/62 , Y10S62/913
摘要： There is disclosed high-purity nitrogen gas production equipment for production of ultra-high-purity nitrogen gas for use in the electronics and other industries, for example in connection with the production of silicon semiconductors. The conventional nitrogen gas production equipment of cryogenic air separation type tends to develop troubles and yields product nitrogen gas only at high cost and in comparatively low purity. The equipment according to the invention is such that a liquid nitrogen storage means (23) is connected via a first feeding pipeline (24a) to a distillation column (15) into which air is introduced from the outside via an air compression means (9) and heat exchange means (13), (14) while the above storage means (23) is also connected via a second feeding line (24b) to the above heat exchange means (13), (14). In this way, the raw material air is chilled to a cryogenic temperature as a result of absorption of the latent heat of evaporation by liquid nitrogen in the heat exchangers and the cryogenic compressed air is further chilled in the distillation column (15 ) by the heat of evaporation of liquid nitrogen. By taking advantage of the difference in boiling point, the nitrogen is withdrawn in gaseous state while oxygen is retained in liquid state. The resulting nitrogen gas is combined with the vaporized liquid nitrogen originating from the liquid nitrogen storage tank (23) to give product nitrogen gas. By these features, low-cost, high-purity nitrogen gas can be produced without machine troubles.
摘要翻译： PCT No.PCT / JP85 / 00385 Sec。 371日期：1986年3月12日 102（e）日期1986年3月12日PCT提交1985年7月8日PCT公布。出版物WO86 / 00693 日期为1986年1月30日。公开了用于生产用于电子等行业的超高纯度氮气的高纯度氮气生产设备，例如与硅半导体的生产有关。常规的低温空气分离型氮气生产设备倾向于产生麻烦，仅以高成本和较低纯度产生产品氮气。根据本发明的设备使得液氮存储装置（23）经由第一供给管线（24a）经由空气压缩装置（9）从外部引入空气的蒸馏塔（15）连接，和热交换装置（13），（14），而上述存储装置（23）也经由第二供给管线（24b）连接到上述热交换装置（13），（14）。以这种方式，原料空气由于在热交换器中吸收液氮的蒸发潜热而冷却至低温，低温压缩空气通过热量在蒸馏塔（15）中进一步冷却的液氮蒸发。通过利用沸点的差异，氮以气态取出，而氧保持在液态。将得到的氮气与来自液氮储罐（23）的汽化液氮合并，得到产物氮气。通过这些特征，可以在没有机器故障的情况下生产低成本，高纯度的氮气。

72. 发明授权

US4254629A Cryogenic system for producing low-purity oxygen 失效
标题翻译：用于生产低纯度氧的低温系统
公开(公告)号：US4254629A
公开(公告)日：1981-03-10
申请号：US145882
申请日：1980-05-01
申请人： Walter J. Olszewski
发明人： Walter J. Olszewski
IPC分类号： F25J3/04
CPC分类号： F25J3/04454 , F25J3/04193 , F25J3/04218 , F25J3/0423 , F25J3/04296 , F25J3/04309 , F25J3/04393 , F25J3/04412 , F25J3/04448 , F25J3/0486 , F25J3/04963 , F25J2200/10 , F25J2200/52 , F25J2205/24 , F25J2290/10
摘要： Low purity oxygen is produced by factional distillation of liquefied air in a double distillation column and an auxiliary distillation column. Feed air is supplied at two different pressures. The disclosed methods of handling intermediate oxygen-enriched liquid produced by the two columns and removing nitrogen-rich gas from the auxiliary distillation column permit the system to operate with lower energy requirements and smaller column diameter than conventional systems.
摘要翻译：低纯度氧是通过在双蒸馏塔和辅助蒸馏塔中进行液化空气的蒸馏而产生的。进料空气以两种不同的压力供应。所公开的处理由两塔生成的中等富氧液体并从辅助蒸馏塔除去富氮气体的方法允许系统以比常规系统更低的能量要求和更小的柱直径运行。

73. 发明授权

US3277655A Separation of gaseous mixtures 失效
公开(公告)号：US3277655A
公开(公告)日：1966-10-11
申请号：US30295763
申请日：1963-08-19
申请人： AIR PROD & CHEM
发明人： GEIST JACOB M , CORMIER THOMAS E
IPC分类号： F25J3/04
CPC分类号： F25J3/0486 , F25J3/04206 , F25J3/04303 , F25J3/04418 , F25J3/04884 , F25J2200/54 , F25J2205/02 , F25J2205/60 , F25J2235/50 , F25J2245/50 , F25J2250/10 , F25J2250/40 , F25J2250/50

74. 发明授权

KR100784029B1 산소제조설비에 있어서의 액체공기 레벨 제어장치 有权
标题翻译：用于控制氧气制造装置中的液体空气水平的装置
公开(公告)号：KR100784029B1
公开(公告)日：2007-12-07
申请号：KR1020010085274
申请日：2001-12-26
申请人： 주식회사 포스코
发明人： 노경호 , 김용엽 , 강승익
IPC分类号： F25J3/04
CPC分类号： F25J3/04769 , F25J3/0486 , F25J2205/20 , F25J2220/52 , F25J2280/02
摘要： 본 발명은 철강생산시 사용되는 산소,질소,아르곤가스를 제조하는 산소제조설비의 제조공정에서 발생하는 이산화탄소(CO
2 ) 및 탄화수소 성분이 액체공기를 저장하는 공기분리장치의 탱크 하부에 축적되면서 막히는 현상을 방지할 수 있도록 한 산소제조설비에 있어서의 액체공기 레벨 제어장치에 관한 것이다.
본 발명은 공기분리장치내에서 미분리된 이산화탄소(CO
2 ) 및 탄화수소 성분이 상기 공기분리장치의 하부에서 액체공기의 레벨을 감지하는 레벨발신기의 고압측 라인에 적치되는 것을 방지하기 위한 산소제조설비에 있어서의 액체공기 레벨 제어장치에 있어서, 상기 레벨발신기의 저압, 고압측 라인에 연결되어 차압의 변동에 따른 이상유무를 판정하는 차압검출부; 상기 고압측 라인에 연결설치되어 상기 공기분리장치내의 고체상태의 이산화탄소(CO
2 ) 및 탄화수소 성분을 녹이는 가온장치부; 상기 차압검출부와 연결되어 상기 고압측 라인의 막힘 신호에 따라 배출밸브가 열려서 상기 가온장치부에 의해 녹은 이산화탄소(CO
2 ) 및 탄화수소 성분을 배출하는 배출부;를 포함하여 구성된 것을 특징으로 한다.
산소제조설비, 액체공기, 레벨발신기, 차압발신기, 방열판

75. 发明授权

KR100454810B1 심랭식 공기분리장치에 의한 질소가스 제조 방법 失效
标题翻译： 심랭식공기분리장치에의한질소가스제조방심
公开(公告)号：KR100454810B1
公开(公告)日：2004-11-05
申请号：KR1020020008421
申请日：2002-02-18
申请人： 대성산업가스 주식회사
发明人： 문흥만 , 용평순
IPC分类号： F25J3/04
CPC分类号： F25J3/04793 , F25J3/04254 , F25J3/044 , F25J3/0486 , F25J3/0489 , F25J2200/72 , F25J2210/42 , F25J2250/42 , F25J2250/52
摘要： PURPOSE: A method for generating nitrogen gas using cryogenic air separation unit is provided to maintain level of liquid surface of liquid-air separator or rectifying column to a certain level by sensing the elevation of liquid surface of the liquid-air separator and rectifying column and controlling supply of liquid nitrogen or liquid air. CONSTITUTION: The method for generating nitrogen gas using cryogenic air separation unit comprises the liquid nitrogen gas supply control process comprising a step of sensing level of liquid surface of liquid air of rectifying column(10) using first liquid surface meter(24), and a step of outputting low liquid surface signal if the level of the liquid surface is less than a certain level and opening the automatic valve so that liquid nitrogen is supplied to the rectifying column from liquid nitrogen storage tank(22) if the automatic valve is in the closed state by checking the state of automatic valve(19), and outputting high liquid surface signal if the level of the liquid surface is the same as or higher than a certain level and closing the automatic valve, thereby stopping supply of liquid nitrogen to the rectifying column from liquid nitrogen storage tank so that the level of liquid surface of the liquid air of the rectifying column is recovered to a certain level if the automatic valve is in the opened state by checking the state of the automatic valve; and the liquid air supply control process comprising a step of sensing elevation of liquid surface of liquid air of liquid-air separator(12) using second liquid surface meter(25), and a step of outputting low liquid surface signal if the elevation of the liquid surface is less than a certain level and opening the expansion valve so that liquid air is supplied to the liquid-air separator from the rectifying column if the expansion valve is in the closed state by checking the state of expansion valve(11), and outputting high liquid surface signal if the elevation of the liquid surface is the same as or higher than a certain level and closing the expansion valve, thereby stopping supply of liquid air to the liquid-air separator(12) from a lower region of the rectifying column so that the elevation of liquid surface of the liquid air is recovered to a certain level if the expansion valve is in the opened state by checking the state of the expansion valve.
摘要翻译：目的：提供一种利用低温空气分离装置产生氮气的方法，通过检测液 - 气分离器和精馏塔的液面高度，使液 - 气分离器或精馏塔的液面保持在一定水平，并且控制液氮或液态空气的供应。构成：使用低温空气分离单元产生氮气的方法包括液氮气体供应控制过程，该过程包括使用第一液体表面计量器（24）感测精馏塔（10）的液体空气的液面水平的步骤，以及如果液面低于一定水平，则输出低液面信号的步骤，并打开自动阀，使得如果自动阀处于自动阀的状态，则液氮从液氮储罐（22）供应到精馏塔通过检查自动阀（19）的状态来检测液体的关闭状态，并且如果液面的液位等于或高于一定水平并关闭自动阀，则输出高液面信号，从而停止向液体供给液氮从液氮储罐中排出精馏塔，以使精馏塔液体空气的液面高度恢复到一定水平通过检查自动阀的状态来使阀处于打开状态; 所述液体空气供应控制过程包括使用第二液体表面仪（25）感测液体 - 空气分离器（12）的液体空气的液面升高的步骤，以及如果所述液体空气分离器液面低于一定水平并打开膨胀阀，以便通过检查膨胀阀（11）的状态在膨胀阀处于关闭状态时将液体空气从精馏塔供应到液气分离器，以及如果液面的高度等于或高于一定水平并关闭膨胀阀，则输出高液面信号，从而停止从整流的下部区域向液气分离器（12）供应液体空气以便通过检查膨胀阀的状态，如果膨胀阀处于打开状态，则液体空气的液面的高度恢复到一定水平。

76. 发明专利

JP5278356B2 Cold standby method of air separation unit 有权
公开(公告)号：JP5278356B2
公开(公告)日：2013-09-04
申请号：JP2010050299
申请日：2010-03-08
申请人： Jfeスチール株式会社
发明人：正人藤城
IPC分类号： F25J3/04
CPC分类号： F25J3/04412 , F25J3/04824 , F25J3/0486 , F25J2210/50 , F25J2280/02
摘要： PROBLEM TO BE SOLVED: To substantially extend a cold standby state of an air separator. SOLUTION: When it is determined that a hydrocarbon concentration of an interior of a rectifier 15 has become a preset threshold value or more during a cold standby of stopping operation of the air separator while leaving a liquid product in the interior of the rectifier 15, liquid acid is injected into the interior of the rectifier 15. COPYRIGHT: (C)2011,JPO&INPIT

77. 发明专利

JP2005273959A Low-temperature air separating apparatus and method operating the same 有权
标题翻译：低温空气分离装置及其操作方法
公开(公告)号：JP2005273959A
公开(公告)日：2005-10-06
申请号：JP2004085308
申请日：2004-03-23
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： ASAOKA HITOSHI
IPC分类号： F25J3/04 , F25J3/02
CPC分类号： F25J3/04036 , F25J3/0409 , F25J3/04303 , F25J3/04381 , F25J3/04412 , F25J3/0486 , F25J2230/50 , F25J2245/50 , F25J2250/50
摘要： PROBLEM TO BE SOLVED: To provide a low-temperature air separating apparatus capable of supplying a high-pressure product oxygen gas to a user and capable of suppressing an increase in operation cost.
SOLUTION: This low-temperature air separating apparatus is formed by taking out, through a second product oxygen line, a part of the amount of all product oxygen retrieved from a double-rectifying tower 11, evaporating and heating the retrieved liquid oxygen in a main heat exchanger after being pressurized to a specified pressure to form a product oxygen gas, taking out the remaining oxygen in the form of oxygen gas through a second product oxygen line 5, and compressing the retrieved oxygen gas to a specified pressure by an oxygen gas compressor 5a after being heated by the main heat exchanger 2.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供能够向用户供给高压产物氧气并能够抑制运行成本增加的低温空气分离装置。解决方案：该低温空气分离装置通过从第二产物氧气线取出从双精馏塔11回收的所有产物氧的量的一部分而形成，蒸发并加热回收的液氧在主热交换器中，在被加压至规定压力以形成产物氧气之后，通过第二产物氧气管线5取出氧气形式的剩余氧气，并将回收的氧气压缩至指定压力氧气压缩机5a在被主热交换器2加热之后。（C）2006年，JPO＆NCIPI

78. 发明专利

JP2004232967A Low temperature air separating device 审中-公开
标题翻译：低温空气分离装置
公开(公告)号：JP2004232967A
公开(公告)日：2004-08-19
申请号：JP2003022508
申请日：2003-01-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YOSHIDA JUN , KANO TARO
IPC分类号： B01D53/04 , F25J3/04
CPC分类号： F25J3/04775 , F25J3/0409 , F25J3/04157 , F25J3/04181 , F25J3/04193 , F25J3/04206 , F25J3/04303 , F25J3/04412 , F25J3/0486 , F25J2205/32 , F25J2205/34 , F25J2205/68 , F25J2205/70 , F25J2245/40 , F25J2245/50 , F25J2250/40 , F25J2250/50
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for controlling a low temperature air separating device having a pre-treatment device including an adsorption tower automatically controlled to optimum regenerative gas conditions. SOLUTION: This low temperature air separating device with a TSA system pre-treatment device comprises a DCS control calculator 30 having a function to monitor the peak value Tp and the final value Te of the regenerative gas outlet temperature of the adsorption tower 3 and, when the monitored value comes out of a proper range, automatically correcting regenerative gas conditions. The DCS control calculator 30 comprises a function to predict the regenerative gas outlet temperature by using an air temperature Ti at an inlet to the adsorption tower 3 by automatically functionally generating the optimum values of the regenerative gas conditions subsequent to the air temperature Ti and automatically performing a control to correct that temperature. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：解决的问题：提供一种控制低温空气分离装置的方法和装置，其具有包括自动控制到最佳再生气体条件的吸附塔的预处理装置。解决方案：具有TSA系统预处理装置的这种低温空气分离装置包括DCS控制计算器30，其具有监测吸附塔3的再生气体出口温度的峰值Tp和最终值Te的功能并且当监测值超出适当范围时，自动校正再生气体条件。 DCS控制计算器30包括通过在空气温度Ti之后自动功能地产生再生气体条件的最佳值并且自动执行的功能，通过在吸附塔3的入口处使用空气温度Ti来预测再生气体出口温度的功能一个控制来纠正这个温度。版权所有（C）2004，JPO＆NCIPI

79. 发明专利

JPS58190679A Method of cooling cooling water for cooling and washing air as raw material 失效
标题翻译：冷却冷却水作为原料冷却和洗涤空气的方法
公开(公告)号：JPS58190679A
公开(公告)日：1983-11-07
申请号：JP7144982
申请日：1982-04-30
申请人： Hitachi Ltd , Hitachi Sanki Eng
发明人： YOSHIHAMA YUUJI , SOMEYA KAZUO
IPC分类号： F25D3/10 , F25J3/04
CPC分类号： F25J3/0486 , F25J3/04157 , F25J2205/32 , F25J2205/34 , F25J2270/02

80. 发明申请

WO2015094428A3 MAIN HEAT EXCHANGE SYSTEM AND METHOD FOR REBOILING 审中-公开
标题翻译：主要交换系统和重新布置方法
公开(公告)号：WO2015094428A3
公开(公告)日：2015-09-03
申请号：PCT/US2014052101
申请日：2014-08-21
申请人： PRAXAIR TECHNOLOGY INC
发明人： CHAKRAVARTHY VIJAYARAGHAVAN S , LOCKETT MICHAEL J , BONAQUIST DANTE P , SHELAT MAULIK R , KIBLER KARL K
IPC分类号： F25J3/04 , F25J5/00
CPC分类号： F25J3/0486 , F25J3/04412 , F25J3/04769 , F25J3/04787 , F25J3/04824 , F25J3/04884 , F25J5/005 , F25J2200/52 , F25J2200/54 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20
摘要： A method and main heat exchange system for use in a cryogenic air separation plant in which down-flow and thermosiphon heat exchangers are employed to partially vaporize an oxygen-rich liquid produced in a lower pressure column and to condense the nitrogen-rich vapor in a higher pressure column. A greater proportion of the oxygen-rich liquid can be partially vaporized in the down-flow heat exchangers than in the thermosiphon heat exchangers and the nitrogen-rich vapor condensed in the thermosiphon heat exchangers can have a higher oxygen content than the nitrogen-rich vapor condensed in the down-flow heat exchangers. This allows the higher pressure column to operate at a lower pressure than would otherwise be possible. A central conduit can extend from the higher pressure column into the lower pressure column to introduce the nitrogen-rich vapor into at least the down-flow heat exchangers for purposes of reducing pressure drop and column height.
摘要翻译：一种用于低温空气分离装置的方法和主要热交换系统，其中使用下流和热虹吸热交换器来部分蒸发在低压塔中产生的富氧液体并将富氮蒸气冷凝在高压塔。富氧液体中的较大比例可以在下流热交换器中部分蒸发，而不是在热虹吸热交换器中，在热虹吸热交换器中冷凝的富氮蒸汽可以具有比富氮蒸气更高的氧含量在下流热交换器中冷凝。这允许高压塔在比其他可能的压力更低的压力下操作。为了降低压降和柱高度，中心导管可以从高压塔延伸到低压塔中，以将富氮蒸气引入至少下流式热交换器中。

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