KR100905115B1 - 압력변동에 따른 산소가스 생산량의 증량 및 감량 운전방법 - Google Patents
압력변동에 따른 산소가스 생산량의 증량 및 감량 운전방법 Download PDFInfo
- Publication number
- KR100905115B1 KR100905115B1 KR1020020071688A KR20020071688A KR100905115B1 KR 100905115 B1 KR100905115 B1 KR 100905115B1 KR 1020020071688 A KR1020020071688 A KR 1020020071688A KR 20020071688 A KR20020071688 A KR 20020071688A KR 100905115 B1 KR100905115 B1 KR 100905115B1
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- KR
- South Korea
- Prior art keywords
- oxygen gas
- oxygen
- amount
- heat exchanger
- main heat
- Prior art date
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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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
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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
-
- 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
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
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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
- F25J3/04406—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
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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
- F25J3/04472—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
- F25J3/04496—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 compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist
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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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/62—Details of storing a fluid in a tank
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Description
Claims (2)
- 대기중의 공기를 흡입 압축시킨 후 비점차에 의해 산소, 질소, 아르곤 가스로 분리하는 공기분리장치를 구비한 설비에서,산소가스저장탱크의 전단압력을 검출하는 과정과;검출된 압력이 하한 설정치 이하로 유지되면 공기압축기의 가이드벤을 열어주어 흡입되는 원료 공기유량을 증량시킴과 동시에 액체산소저장탱크에서 펌프가 액체산소를 주열교환기로 보내는 양을 늘려 주열교환기의 온도상승을 억제하도록 한 산소가스증량운전 과정과;검출된 압력이 상한 설정치 이상으로 유지되면 공기압축기의 가이드벤을 닫아주어 흡입되는 원료 공기유량을 감량시킴과 동시에 액체산소저장탱크에서 펌프가 액체산소를 주열교환기로 보내는 양을 줄여 주열교환기의 온도하락을 억제하도록 한 산소가스감량운전 과정을 포함하여 구성되는 것을 특징으로 하는 압력변동에 따른 산소가스 생산량의 증량 및 감량 운전방법.
- 제1항에 있어서,상기 산소가스증량운전시 하한 설정치는 18kg/㎠이하로 3분유지이고, 산소가스감량운전시 상한 설정치는 24kg/㎠이상으로 3분유지임을 특징으로 하는 압력변동에 따른 산소가스 생산량의 증량 및 감량 운전방법.
Priority Applications (1)
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KR1020020071688A KR100905115B1 (ko) | 2002-11-18 | 2002-11-18 | 압력변동에 따른 산소가스 생산량의 증량 및 감량 운전방법 |
Applications Claiming Priority (1)
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KR1020020071688A KR100905115B1 (ko) | 2002-11-18 | 2002-11-18 | 압력변동에 따른 산소가스 생산량의 증량 및 감량 운전방법 |
Publications (2)
Publication Number | Publication Date |
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KR20040043435A KR20040043435A (ko) | 2004-05-24 |
KR100905115B1 true KR100905115B1 (ko) | 2009-06-30 |
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KR1020020071688A KR100905115B1 (ko) | 2002-11-18 | 2002-11-18 | 압력변동에 따른 산소가스 생산량의 증량 및 감량 운전방법 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100964899B1 (ko) * | 2003-06-19 | 2010-06-23 | 주식회사 포스코 | 역압 방지 기능을 갖는 액 기화기 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06229667A (ja) * | 1993-02-05 | 1994-08-19 | Kawasaki Steel Corp | 需要変動対応型空気液化分離装置の制御方法 |
JPH08152261A (ja) * | 1994-11-25 | 1996-06-11 | Nippon Sanso Kk | 空気液化分離装置及びその制御方法 |
JPH10220961A (ja) * | 1997-02-04 | 1998-08-21 | Kawasaki Steel Corp | 需要変動吸収型空気分離プラントの運転制御方法及び装置 |
KR100454810B1 (ko) * | 2002-02-18 | 2004-11-05 | 대성산업가스 주식회사 | 심랭식 공기분리장치에 의한 질소가스 제조 방법 |
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- 2002-11-18 KR KR1020020071688A patent/KR100905115B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06229667A (ja) * | 1993-02-05 | 1994-08-19 | Kawasaki Steel Corp | 需要変動対応型空気液化分離装置の制御方法 |
JPH08152261A (ja) * | 1994-11-25 | 1996-06-11 | Nippon Sanso Kk | 空気液化分離装置及びその制御方法 |
JPH10220961A (ja) * | 1997-02-04 | 1998-08-21 | Kawasaki Steel Corp | 需要変動吸収型空気分離プラントの運転制御方法及び装置 |
KR100454810B1 (ko) * | 2002-02-18 | 2004-11-05 | 대성산업가스 주식회사 | 심랭식 공기분리장치에 의한 질소가스 제조 방법 |
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