CN210832752U - 空分原料气预处理结构 - Google Patents

空分原料气预处理结构 Download PDF

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CN210832752U
CN210832752U CN201922046352.1U CN201922046352U CN210832752U CN 210832752 U CN210832752 U CN 210832752U CN 201922046352 U CN201922046352 U CN 201922046352U CN 210832752 U CN210832752 U CN 210832752U
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air
feed gas
clarifier
cooling tower
compressor
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金志�
王仁保
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Zhejiang Haichang Gas Co ltd
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Zhejiang Haichang Gas 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
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
    • F25J3/04018—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of main feed 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
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04157—Afterstage cooling and so-called "pre-cooling" of the feed air upstream the air purification unit and main heat exchange line
    • 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
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04163—Hot end purification of the feed 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
    • F25J2205/32—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes as direct contact cooling tower to produce a cooled gas stream, e.g. direct contact after cooler [DCAC]
    • 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
    • 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/82—Processes or apparatus using other separation and/or other processing means using a reactor with combustion or catalytic reaction
    • 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/84—Processes or apparatus using other separation and/or other processing means using filter

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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

本实用新型属于空分设备技术领域，具体涉及一种空分原料气预处理结构，包括空气预处理管道，空气预处理管道上设置有空气过滤器、压缩机和纯化器，压缩机将经过空气过滤器初步过滤后的空气输送向纯化器，所述压缩机和纯化器之间还设置有催化氧化器和空冷塔，催化氧化器利用催化剂脱除空气中的碳氢化合物，空冷塔对空气进行降温、洗涤及初步去除杂质。本实用新型提供的空分原料气预处理结构，在空分装置纯化器前安装一套催化氧化装置，减少纯化器使用负荷，保证空分装置安全运行。

Description

空分原料气预处理结构
技术领域
本实用新型属于空分设备技术领域，具体涉及一种空分原料气预处理结构。
背景技术
现有公司空分装置安装在医化园区，园区内都是化工企业及在海边，空气质量恶劣，空气中含有碳氢化合物等杂质，造成空分装置生产的高纯氮中氢含量超标及烃类杂质容易在空分装置中积聚，影响空分安全正常运行及产品无法达到高纯气体要求。
实用新型内容
本实用新型的目的是提供一种空分原料气预处理结构，在空分装置纯化器前安装一套催化氧化装置，减少纯化器使用负荷，保证空分装置安全运行。
本实用新型的目的是这样实现的：一种空分原料气预处理结构，包括空气预处理管道，空气预处理管道上设置有空气过滤器、压缩机和纯化器，压缩机将经过空气过滤器初步过滤后的空气输送向纯化器，所述压缩机和纯化器之间还设置有催化氧化器和空冷塔，催化氧化器利用催化剂脱除空气中的碳氢化合物，空冷塔对空气进行降温、洗涤及初步去除杂质。
进一步的，所述纯化器并联设置两组。
进一步的，所述空气预处理管道从催化氧化器底部引入，顶部引出。
进一步的，所述空冷塔上部设置喷淋管道，底部设置出水口，空气预处理管道从空冷其下部引入。
进一步的，所述空气预处理管道从纯化器顶部引入，从纯化器底部引出后流向分馏塔。
本实用新型相比现有技术突出且有益的技术效果是：
原料空气在空气过滤器中去除颗粒状的杂质，进入压缩机，压缩至规定的压力后进入催化氧化器，利用催化剂的特性将原料空气中的碳氢化合物催化作用与空气中氧反应生成水，脱除碳氢化合物后再进入空冷塔进行降温、洗涤及初步去除空气中水分和微颗粒，再进入纯化器系统，脱除空气中的二氧化碳、水分等杂质，最终干燥、洁净的空气通过管道进入分馏塔系统，保证空分安全运行和使得产品氮气达到高纯气体的要求。
附图说明
图1是本实用新型实施例中空分原料气预处理结构的原理图。
附图标记：1、空气过滤器；2、压缩机；3、催化氧化器；4、空冷塔；5、纯化器；6、空气预处理管道。
具体实施方式
下面结合附图对本实用新型的具体实施方式作进一步详细说明。
一种空分原料气预处理结构，如图1所示，包括空气预处理管道6，空气预处理管道6上设置有空气过滤器1、压缩机2和纯化器5，压缩机2将经过空气过滤器1初步过滤后的空气输送向纯化器5。其中，压缩机2和纯化器5之间还设置有催化氧化器3和空冷塔4。空气预处理管道6从催化氧化器3底部引入，顶部引出，催化氧化器3利用催化剂脱除空气中的碳氢化合物；空冷塔4对空气进行降温、洗涤及初步去除杂质，空冷塔4上部设置喷淋管道，底部设置出水口，空气预处理管道6从空冷其下部引入。
本实施例中，纯化器5并联设置两组，空气预处理管道6从纯化器5顶部引入，从纯化器5底部引出后流向分馏塔。
以上所述仅是本实用新型的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本实用新型技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本实用新型的保护范围。

Claims (5)

1.一种空分原料气预处理结构，包括空气预处理管道，空气预处理管道上设置有空气过滤器、压缩机和纯化器，压缩机将经过空气过滤器初步过滤后的空气输送向纯化器，其特征在于：所述压缩机和纯化器之间还设置有催化氧化器和空冷塔，催化氧化器利用催化剂脱除空气中的碳氢化合物，空冷塔对空气进行降温、洗涤及初步去除杂质。
2.根据权利要求1所述的空分原料气预处理结构，其特征在于：所述纯化器并联设置两组。
3.根据权利要求1所述的空分原料气预处理结构，其特征在于：所述空气预处理管道从催化氧化器底部引入，顶部引出。
4.根据权利要求1所述的空分原料气预处理结构，其特征在于：所述空冷塔上部设置喷淋管道，底部设置出水口，空气预处理管道从空冷其下部引入。
5.根据权利要求1所述的空分原料气预处理结构，其特征在于：所述空气预处理管道从纯化器顶部引入，从纯化器底部引出后流向分馏塔。
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Address after: 317000 No. 755, Dongdu South Road, Linhai City, Taizhou City, Zhejiang Province (for office use only) (self declaration)

Patentee after: Zhejiang Haichang Gas Co.,Ltd.

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