CN202532818U - 高纯氧生产系统 - Google Patents

高纯氧生产系统 Download PDF

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Publication number
CN202532818U
CN202532818U CN2012201736428U CN201220173642U CN202532818U CN 202532818 U CN202532818 U CN 202532818U CN 2012201736428 U CN2012201736428 U CN 2012201736428U CN 201220173642 U CN201220173642 U CN 201220173642U CN 202532818 U CN202532818 U CN 202532818U
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air
communicated
tower
oxygen
air inlet
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CN2012201736428U
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Inventor
袁红
罗绯
严豪
杨舰
彭晓梅
赵先涌
古俐
张德军
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CHONGQING ZHAOYANG GAS Co Ltd
Chongqing Iron and Steel Group Co Ltd
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CHONGQING ZHAOYANG GAS Co Ltd
Chongqing Iron and Steel Group Co Ltd
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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
    • F25J3/04248—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
    • F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low 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
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/04709—Producing crude argon in a crude argon column as an auxiliary column system in at least a dual pressure main column system
    • F25J3/04715—The auxiliary column system simultaneously produces 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/04—Processes or apparatus using separation by rectification in a dual pressure main column system
    • F25J2200/06—Processes or apparatus using separation by rectification in a dual pressure main column system in a classical double column flow-sheet, 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/34—Processes or apparatus using separation by rectification using a side column fed by a stream from the low 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/50—Oxygen or special cases, e.g. isotope-mixtures or low purity O2
    • F25J2215/56—Ultra high purity oxygen, i.e. generally more than 99,9% O2

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

本实用新型公开了一种高纯氧生产系统，空气过滤器的出气口与空气压缩机的进气口连通，空气压缩机的出气口同空气冷却塔的进气口连通，空气冷却塔的出气口同分子筛的进气口连通，分子筛的出气口分别同增压透平膨胀机的进气口和主换热器的进气口连通，增压透平膨胀机的出气口同空分上塔的进气口连通，主换热器的出气口同空分下塔的进气口连通，空分上塔的出气口和粗氩塔连通，粗氩塔的液氧出口同高纯氧塔顶部的液氧进口连通，高纯氧塔内的蒸气流回粗氩塔，空分下塔与高纯氧塔的冷凝蒸发器连通。通过粗氩塔和高纯氧塔对空分塔提纯后的氧气再进行提纯，氧气中的杂质成分的含量进一步降低，氧气纯度达到≥99.995%，可满足现代生产、科研的需要。

Description

高纯氧生产系统
技术领域
本实用新型涉及一种氧气生产系统，特别涉及一种高纯氧生产系统。
背景技术
高纯氧作为一种高新技术产品主要用于标准混合气的制备、科学研究、集成电路和半导体器件的生产，也适用于对氧气纯度要求较高的其他高新技术领域。同时它也是一种高附加值的产品，具有较高的利润率和投资回报率。
然而一般空分装置生产的氧气纯度只能达到99.7%左右，而高纯氧的纯度至少必须≥99.995%，因此需要一种能生产纯度≥99.995%的高纯氧生产系统。
实用新型内容
有鉴于此，本实用新型的目的是提供一种高纯氧生产系统，其能产出≥99.995%的高纯氧，可满足现代生产、科研的需要。
本实用新型高纯氧生产系统，包括空气过滤器、空气压缩机、空气冷却塔、分子筛、增压透平膨胀机、主换热器、空分塔、高纯氧塔和粗氩塔，空分塔包括空分上塔和空分下塔；空气过滤器的出气口与空气压缩机的进气口连通，空气压缩机的出气口同空气冷却塔的进气口连通，空气冷却塔的出气口同分子筛的进气口连通，分子筛的出气口分别同增压透平膨胀机的进气口和主换热器的进气口连通，增压透平膨胀机的出气口同空分上塔的进气口连通，主换热器的出气口同空分下塔的进气口连通，空分上塔的出气口和粗氩塔连通，粗氩塔的液氧出口同高纯氧塔顶部的液氧进口连通，高纯氧塔内的蒸气流回粗氩塔，空分下塔与高纯氧塔的冷凝蒸发器连通。
本实用新型的有益效果：本实用新型高纯氧生产系统，通过粗氩塔和高纯氧塔对空分塔提纯后的氧气再进行提纯，进一步降低了氧气中的氩气等杂质成分的含量，高纯氧塔产出的氧气纯度≥99.995%，可满足现代生产、科研的需要。
附图说明
下面结合附图和实施例对本实用新型作进一步描述。
图1为本实用新型高纯氧生产系统的结构示意图。
具体实施方式
图1为本实用新型高纯氧生产系统的结构示意图。
如图所示，本实施例高纯氧生产系统，包括空气过滤器1、空气压缩机2、空气冷却塔3、分子筛4、增压透平膨胀机5、主换热器6、空分塔、高纯氧塔7和粗氩塔8，空分塔包括空分上塔9和空分下塔10；空气过滤器1的出气口与空气压缩机2的进气口连通，空气压缩机2的出气口同空气冷却塔3的进气口连通，空气冷却塔3的出气口同分子筛4的进气口连通，分子筛4的出气口分别同增压透平膨胀机5的进气口和主换热器6的进气口连通，增压透平膨胀机5的出气口同空分上塔9的进气口连通，主换热器6的出气口同空分下塔10的进气口连通，空分上塔9的出气口和粗氩塔8连通，粗氩塔8的液氧出口同高纯氧塔7顶部的液氧进口连通，高纯氧塔7内的蒸气流回粗氩塔8，空分下塔10与高纯氧塔7的冷凝蒸发器7a连通。本实施例中的空气过滤器1为自洁式空气空滤器，空气压缩机2为离心式压缩机。
本本实施例高纯氧生产系统工作时，包括以下步骤：
1、空气进先进入自洁式空气空滤器1，空气被除去尘埃等固体杂质后再进入离心式空气压缩机2被压缩；
2、被压缩的空气进入空气冷却塔4进行洗涤并被降温至17℃，被空气冷却塔4降温后的气体进入分子筛4；
3、分子筛4除去空气中含有的水分、二氧化碳和碳氢化合物等杂质，分子筛4纯化后的气体的大部分被送入主换热器6被冷却至接近露点，再被送入空分下塔；分子筛4纯化后的气体的其余部分被送入增压透平膨胀机5的压缩机，增压透平膨胀机5的压缩机将气体送入主换热器6被冷却至一定温度后再被送入增压透平膨胀机5的透平膨胀机膨胀；
4、透平膨胀机排除的气体进入空分上塔9进行提纯，空分上塔9提纯后的气体被引入粗氩塔8进行精馏，进一步除去氧气中的氩气等杂质，粗氩塔8产生的液氧再被送入高纯氧塔7，同时空分下塔10将部分纯化气体送入高纯氧塔7的冷凝蒸发器7a作为热源对进入高纯氧塔7的液氧进行加热，部分液氧被蒸发变为上升蒸气与下流的液氧进行进一步的精馏提纯。
由于经过粗氩塔和高纯氧塔对空分塔提纯后的氧气再进行提纯，进一步降低了氧气中的氩气等杂质成分的含量，高纯氧塔产出的氧气纯度≥99.995%，可满足现代生产、科研的需要。
最后说明的是，以上实施例仅用以说明本实用新型的技术方案而非限制，尽管参照较佳实施例对本实用新型进行了详细说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或者等同替换，而不脱离本实用新型技术方案的宗旨和范围，其均应涵盖在本实用新型的权利要求范围当中。

Claims (1)

1.一种高纯氧生产系统，其特征在于：包括空气过滤器、空气压缩机、空气冷却塔、分子筛、增压透平膨胀机、主换热器、空分塔、高纯氧塔和粗氩塔，空分塔包括空分上塔和空分下塔；空气过滤器的出气口与空气压缩机的进气口连通，空气压缩机的出气口同空气冷却塔的进气口连通，空气冷却塔的出气口同分子筛的进气口连通，分子筛的出气口分别同增压透平膨胀机的进气口和主换热器的进气口连通，增压透平膨胀机的出气口同空分上塔的进气口连通，主换热器的出气口同空分下塔的进气口连通，空分上塔的出气口和粗氩塔连通，粗氩塔的液氧出口同高纯氧塔顶部的液氧进口连通，高纯氧塔内的蒸气流回粗氩塔，空分下塔与高纯氧塔的冷凝蒸发器连通。
CN2012201736428U 2012-04-23 2012-04-23 高纯氧生产系统 Expired - Lifetime CN202532818U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106089336A (zh) * 2016-06-17 2016-11-09 全球能源互联网研究院 一种利用循环压缩机提效的深冷液化空气储能系统
CN106338182A (zh) * 2016-08-25 2017-01-18 重庆朝阳气体有限公司 一种空气分离系统的节能控制方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106089336A (zh) * 2016-06-17 2016-11-09 全球能源互联网研究院 一种利用循环压缩机提效的深冷液化空气储能系统
CN106338182A (zh) * 2016-08-25 2017-01-18 重庆朝阳气体有限公司 一种空气分离系统的节能控制方法
CN106338182B (zh) * 2016-08-25 2018-11-06 重庆朝阳气体有限公司 一种空气分离系统的节能控制方法

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