KR950033380A - 공기의 저온분리를 위한 방법 및 장치 - Google Patents

공기의 저온분리를 위한 방법 및 장치 Download PDF

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KR950033380A
KR950033380A KR1019950011147A KR19950011147A KR950033380A KR 950033380 A KR950033380 A KR 950033380A KR 1019950011147 A KR1019950011147 A KR 1019950011147A KR 19950011147 A KR19950011147 A KR 19950011147A KR 950033380 A KR950033380 A KR 950033380A
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pressure stage
low pressure
liquid
buffer tank
high pressure
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KR1019950011147A
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English (en)
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로데 빌헬름
로트만 디에트리히
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라이너 카섹케르트, 피터 쉬미트
린데 악티엔게젤샤프트
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Publication of KR950033380A publication Critical patent/KR950033380A/ko

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04854—Safety aspects of operation
    • F25J3/0486—Safety aspects of operation of vaporisers for oxygen enriched liquids, e.g. purging of liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
    • F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04472—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages
    • F25J3/04478—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for controlling purposes, e.g. start-up or back-up procedures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • F25J3/04884—Arrangement of reboiler-condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/50—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/50—Processes or apparatus involving steps for recycling of process streams the recycled stream being oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2250/00—Details related to the use of reboiler-condensers
    • F25J2250/04—Down-flowing type boiler-condenser, i.e. with evaporation of a falling liquid film
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/62—Details of storing a fluid in a tank

Abstract

본 발명의 방법과 장치는 공기의 저온분리를 위해서 이용된다. 본 발명의 방법에 따르면 압축되고, 정화되며 냉각된 공기(1)의 적어도 일부가 2단 정류장치(2)의 고압단으로 이송되고, 저압단(4)으로 부터 산소분획물(11)과 질소함유분획물(10)이 생성물로서 추출된다. 저압단(4)의 하부가 열교환기에 의해서 고압단의 상부에 연결되어 있다. 정지상태에서, 저압단의 내부로 흐르는 역류액체가 이 저압단(11)의 하부로 부터 배수되어서 버퍼탱크(13)쪽으로 유입된다. 이 버퍼탱크(13)로 부터 유출되는 액체(16)는 고압단(3)의 상부로 부터 유출되는 응축가스(5)와의 간접열교환(6)에 의해서 부분적으로 응축된다. 생성된 공기(17,18)가 저압단(4)의 하부로 이송된다. 액체상태가 유지되는 분획물의 적어도 일부가 버퍼탱크(13)로 유입된다.

Description

공기의 저온분리를 위한 방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 공기의 저온분리를 위한 장치의 공정도.

Claims (6)

  1. 공기의 저온분리방법으로서, 공기가 압축, 정화, 냉각되는 단계와, 적어도 일부의 공기가 2단 정류장치(2)의 고압단(3)으로 이동되는 단계와, 상기 고압단(3)으로 부터 유출되는 적어도 하나의 분획물(8,9)이 저압단(4)으로 더 분리되는 단계와, 상기 저압단(4)에서 산소분획물(11) 및 질소함유 분획물(10)이 생성물로서 추출되는 단계와 그리고 상기 저압단(4)의 하부가 상기 고압단(3)의 상부와 열교환되는 단계를 포함하는 공기의 저온분리방법에 있어서, 정지상태에서 상기 저압단(4)의 하부로 흐르는 모든 역류액체가 상기 저압단(4)의 하부로부터 부수되어서 버퍼탱크(13)로 유입되는 단계와, 상기 버퍼탱크(13)로 부터 액체(16)가 입수되어서 상기 고압단(3)의 상부로 부터 유출된 응축가스(5)와의 간접열교환(6)에 의해서 액체가 부분적으로 응축되는 단계와, 생성된 증기(17,18)의 적어도 일부가 상기 저압단의 하부로 이송되는 단계와, 그리고 상기 간접열교환(6) 이후에 액체로 유지되는 분획물이 적어도 일부가 상기 버퍼탱크(13)로 유입되는 단계를 포함하는 것을 특징으로 하는 방법.
  2. 제1항에 있어서, 상기 버퍼탱크(13)로 부터 입수되는 상기 액체(16)를 부분적으로 증발시키기 위해서 사용되는 상기 간접열교환(6)이 강하-필름 증발로 수행되는 것을 특징으로 하는 방법.
  3. 제2항에 있어서, 작동중단의 초기에 상기 역류액체가 상기 저압단(4)으로 부터 유출되어서 상기 고압단(3)의 하부로 유입되는 것을 특징으로 하는 방법.
  4. 공기의 저온분리용 장치로서, 공기압축기, 정화장치, 열교환기, 고압단(3) 및 저압단(4)을 갖춘 2단 정류장치(2)를 포함하고 있고, 증기 공급라인(5) 및 응축물 회수라인(7)을 통해서 상기 고압단(3)의 상부와 연결되어 있으며, 상기 저압단(4)의 하부로 부터 유출되는 액체를 증발시키기 위해서 증발통로가 구비되어 있는 응축-증발기(6)를 갖춘 공기의 저온분리용 장치에 있어서, 상기 저압단(4)의 하부 및 버퍼탱크(13)에 연결되어 있는 역류액체라인(11,12)이 액체라인(16), 증기라인(17,18) 및 회수라인(17,12)에 의해서 각각 연결되어 있고, 상기 액체라인(16)은 상기 버퍼탱크(13)로 부터 상기 응축 증발기(6)의 증발통로의 흡입구로 뻗어 있으며, 상기 증기라인(17,18)은 상기 증발통로의 배출구를 상기 저압단(14)의 하부구역과 연결시키고, 상기 회수라인(17,12)은 상기 증발통로의 배출구와 상기 버퍼탱크(13)사이에 액체용인 것을 특징으로 하는 장치.
  5. 제4항에 있어서, 상기 응축-증발기(6)가 강하-필름증발기로 고안되어 있는 것을 특징으로 하는 장치.
  6. 제4항 또는 제5항에 있어서, 액체라인(20)이 상기 저압단(4)의 하부로 부터 상기 고압단으로 뻗어 있고, 상기 액체라인(20)에 차단밸브(22)가 구비되어 있는 것을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950011147A 1994-05-04 1995-05-03 공기의 저온분리를 위한 방법 및 장치 KR950033380A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4415747A DE4415747C2 (de) 1994-05-04 1994-05-04 Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft
DEP4415747.9 1994-05-04

Publications (1)

Publication Number Publication Date
KR950033380A true KR950033380A (ko) 1995-12-22

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KR1019950011147A KR950033380A (ko) 1994-05-04 1995-05-03 공기의 저온분리를 위한 방법 및 장치

Country Status (9)

Country Link
EP (1) EP0681153B1 (ko)
JP (1) JPH0842962A (ko)
KR (1) KR950033380A (ko)
CN (1) CN1124345A (ko)
DE (2) DE4415747C2 (ko)
ES (1) ES2106594T3 (ko)
GR (1) GR3025534T3 (ko)
PL (1) PL308454A1 (ko)
TW (1) TW288984B (ko)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR20190041148A (ko) 2017-10-12 2019-04-22 주식회사 엘지화학 전지 충방전기

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DE19732887A1 (de) * 1997-07-30 1999-02-04 Linde Ag Verfahren zur Luftzerlegung
US6272884B1 (en) 1998-04-08 2001-08-14 Praxair Technology, Inc. Rapid restart system for cryogenic air separation plant
FR2797942B1 (fr) * 1999-08-24 2001-11-09 Air Liquide Vaporiseur-condenseur et installation de distillation d'air correspondante
FR2802825B1 (fr) * 1999-12-23 2002-05-03 Air Liquide Appareil de separation par distillation et procede de nettoyage d'un vaporisateur-condenseur de l'appareil
FR2855598B1 (fr) * 2003-05-28 2005-10-07 Air Liquide Procede et installation de fourniture de secours d'un gaz sous pression par vaporisation de liquide cryogenique
CN100436989C (zh) * 2004-01-29 2008-11-26 宝山钢铁股份有限公司 一种用全低压空分装置制取高纯氧的方法
EP2503270A1 (de) * 2011-03-22 2012-09-26 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Erzeugung eines Sauerstoffprodukts durch Tieftemperaturzerlegung von Luft
CN103537107B (zh) * 2012-07-11 2015-04-22 蓝星(北京)化工机械有限公司 一种蒸发系统及其应用
DE102016013091A1 (de) * 2016-11-04 2018-05-09 Linde Aktiengesellschaft Verfahren und Anlage zum Reinigen eines Gases
CN108072234B (zh) * 2016-11-15 2020-03-06 北大方正集团有限公司 空气分离装置的控制方法
CN112629160A (zh) * 2020-12-21 2021-04-09 华能（天津）煤气化发电有限公司 一种空分自然复热检修方法

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BE560692A (ko) * 1956-09-25 1900-01-01
DE1501760A1 (de) * 1966-12-27 1969-11-27 Rudisleben Chemieanlagenbau Verfahren zur Luftzerlegung
DE3732363A1 (de) * 1987-09-25 1989-04-06 Linde Ag Verfahren und vorrichtung zum wiederanfahren einer gaszerlegungsanlage
DE3913880A1 (de) * 1989-04-27 1990-10-31 Linde Ag Verfahren und vorrichtung zur tieftemperaturzerlegung von luft
JPH0420783A (ja) * 1990-05-11 1992-01-24 Hitachi Ltd 空気分離装置
JPH05306884A (ja) * 1992-03-18 1993-11-19 Hitachi Ltd 空気分離装置及びその運転方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190041148A (ko) 2017-10-12 2019-04-22 주식회사 엘지화학 전지 충방전기

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DE59500625D1 (de) 1997-10-16
DE4415747A1 (de) 1995-11-16
TW288984B (ko) 1996-10-21
EP0681153B1 (de) 1997-09-10
PL308454A1 (en) 1995-11-13
EP0681153A1 (de) 1995-11-08
GR3025534T3 (en) 1998-02-27
CN1124345A (zh) 1996-06-12
ES2106594T3 (es) 1997-11-01
DE4415747C2 (de) 1996-04-25
JPH0842962A (ja) 1996-02-16

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