CN106925146A - 一种氮气气体浓度调节装置和调节方法 - Google Patents

一种氮气气体浓度调节装置和调节方法 Download PDF

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Publication number
CN106925146A
CN106925146A CN201710144348.1A CN201710144348A CN106925146A CN 106925146 A CN106925146 A CN 106925146A CN 201710144348 A CN201710144348 A CN 201710144348A CN 106925146 A CN106925146 A CN 106925146A
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Prior art keywords
nitrogen
blending tank
intelligent controller
nitrogen gas
compressed air
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CN201710144348.1A
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English (en)
Inventor
李建彬
黄文华
秦仁刚
肖荣平
林超新
黄毅
江晓漫
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Limin Pharmaceutical Factory
Limin Pharmaceutical Factory of Livzon Pharmaceutical Group
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Limin Pharmaceutical Factory
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/10—Mixing gases with gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/10—Mixing gases with gases
    • B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
    • B01F23/191—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means characterised by the construction of the controlling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • B01F35/718051—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings being adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/81—Forming mixtures with changing ratios or gradients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/82—Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/833—Flow control by valves, e.g. opening intermittently

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)

Abstract

本发明为一种氮气气体浓度调节装置和调节方法，公开了一种氮气混合装置，通过该装置可以快速获取任意比例的氮气混合气体；本装置包括：(1)制氮系统、(2)混合罐、(3)压缩空气系统、(4)氮气浓度在线检测装置、(5)智能控制仪。

Description

一种氮气气体浓度调节装置和调节方法
技术领域
本发明涉及一种氮气的气体浓度调节装置和调节方法。
背景技术
氮气应用广泛，在食品与医药方面主要应用于食品包装、食品保鲜、中药材保鲜、医药包装、医药置换气、医药输送气氛。食品行业对氮气的要求不高，很多98％以上纯度就可满足要求，医药行业通常要求纯度为99.9％的氮气。根据实际需要，应用不同浓度的氮气。
目前市场上供应的氮气大都是纯度比较高的氮气，或者通过制氮机制造，但并不能稳定控制氮气比例的混合气体，如果想要快速获取一种任意比例的氮气混合气体将会变得非常困难。为了解决上述问题，本发明人在长期的实践过程中，发明了本装置以便快速获取任意比例氮气混合气体。
发明内容
本发明公开了一种氮气混合装置，通过该装置可以快速获取任意比例的氮气混合气体。本装置包括：(1)制氮系统、(2)混合罐、(3)压缩空气系统、(4)氮气浓度在线检测装置、(5)智能控制仪。
所述的(2)混合罐有两个进气通口，一个连接有开关的A阀门与(1)制氮系统，另一个连接有开关的B阀门与(3)压缩空气系统；(2)混合罐有一个排气通口，排气通口处连接(4)氮气在线检测仪的一端；(4)氮气在线监测仪可以实时监测混合罐里氮气的浓度；(4)氮气在线检测仪的另一端连接(5)智能控制仪的一端；(5)智能控制仪的另一端与(3)压缩空气系统之间的开关C阀门相连；在运行中，(4)氮气在线监测仪将(2)混合罐中氮气浓度反馈给(5)智能控制仪，(5)智能控制仪则通过事先设置好的所需浓度来判断(2)混合罐内的混合气体浓度是否符合设定要求，如混合气体浓度高于设定值，则(5)智能控制仪将根据判断结果实时打开C阀门；当混合浓度接近设定值，则C阀门开度逐渐减小；当混合浓度达到设定值，则C阀门关闭。
附图说明
附图为本发明一个实施方式的标准气体浓度调节装置的示意结构图。
实施例
按照说明书内容组建好装置包括：(1)制氮系统、(2)混合罐、(3)压缩空气系统、(4)氮气浓度在线检测装置、(5)智能控制仪。其中：(2)混合罐有两个进气通口，一个连接有开关的A阀门与(1)制氮系统，另一个连接有开关的B阀门与(3)压缩空气系统；(2)混合罐有一个排气通口，排气通口处连接(4)氮气在线检测仪的一端；(4)氮气在线监测仪可以实时监测混合罐里氮气的浓度；(4)氮气在线检测仪的另一端连接(5)智能控制仪的一端；(5)智能控制仪的另一端与(3)压缩空气系统之间的开关C阀门相连。
1、静态测试：先往混合罐灌一定量的氮气，使氮气浓度超过95％，然后关闭氮气进气阀A，智能检测仪通过监测浓度自动开启或关闭阀门C(此处设置是氮气浓度高于94.8％时压缩空气阀C自动开启，低于94.8％时压缩空气阀C自动关闭)，记录停止进气后氮气浓度，并等待3分钟，边放气边测试氮气浓度，与设定值及初始值进行对比分析。测试过程阀门动作反应正常，氮气浓度控制符合要求，测试结果如下：
表1：
2、动态测试：通过减压阀控制氮气进气压力和压缩空气进气压力(压缩空气进气压力比氮气进气压力稍大)同时开启氮气罐阀门A和压缩空气阀门C，让氮气浓度通过氮气智能控制仪自动开启或关闭压缩空气阀门C，进而控制氮气浓度(当氮气浓度大于94.8％时，压缩空气阀门自动开启，低于94.8％时压缩空气阀门自动关闭)，测试过程阀门动作正常，氮气浓度较为稳定，测试结果符合要求，结果如下：
表2：
3、其他任意比例氮气浓度测试：
改变控制仪氮气浓度控制，再次开启装置，分别进行94％、95％、96％三个浓度的氮气测试，测试方法同2动态测试
表3：

Claims (4)

1.一种氮气混合装置，其特征在于，通过该装置可以快速获取任意比例的氮气混合气体。
2.根据权利要求1所述的装置，其特征在于，所述装置包括：(1)制氮系统、(2)混合罐、(3)压缩空气系统、(4)氮气浓度在线检测装置、(5)智能控制仪。
3.根据权利要求2所述的装置，其特征在于，所述(2)混合罐有两个进气通口，一个连接有开关的A阀门与(1)制氮系统，另一个连接有开关的B阀门与(3)压缩空气系统；所述(2)混合罐有一个排气通口，排气通口处连接(4)氮气在线检测仪的一端；所述(4)氮气在线监测仪可以实时监测混合罐里氮气的浓度；所述(4)氮气在线检测仪的另一端连接(5)智能控制仪的一端；所述(5)智能控制仪的另一端与(3)压缩空气系统之间的开关C阀门相连。
4.根据权利要求3所述的装置，其特征在于，在运行中，所述(4)氮气在线监测仪将(2)混合罐中氮气浓度反馈给(5)智能控制仪，(5)智能控制仪则通过事先设置好的所需浓度来判断(2)混合罐内的混合气体浓度是否符合设定要求，如混合气体浓度高于设定值，则(5)智能控制仪将根据判断结果实时打开C阀门；当混合浓度接近设定值，则C阀门开度逐渐减小；当混合浓度达到设定值，则C阀门关闭。
CN201710144348.1A 2017-03-04 2017-03-04 一种氮气气体浓度调节装置和调节方法 Pending CN106925146A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114772562A (zh) * 2022-05-31 2022-07-22 杭州博曼流体工业有限公司 一种模块式psa制氮机气量与纯度调节机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214952A (en) * 1991-08-16 1993-06-01 Praxair Technology, Inc. Calibration for ultra high purity gas analysis
US20040132103A1 (en) * 2002-10-18 2004-07-08 Michael Haubs Process and apparatus for the combinatorial preparation of mixtures, and use of these
TWM366420U (en) * 2009-03-31 2009-10-11 Benson Ind Gases Technology Corp An automatic gas blending device
CN103502903A (zh) * 2011-03-10 2014-01-08 普莱克斯技术有限公司 动态气体混合

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214952A (en) * 1991-08-16 1993-06-01 Praxair Technology, Inc. Calibration for ultra high purity gas analysis
US20040132103A1 (en) * 2002-10-18 2004-07-08 Michael Haubs Process and apparatus for the combinatorial preparation of mixtures, and use of these
TWM366420U (en) * 2009-03-31 2009-10-11 Benson Ind Gases Technology Corp An automatic gas blending device
CN103502903A (zh) * 2011-03-10 2014-01-08 普莱克斯技术有限公司 动态气体混合

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114772562A (zh) * 2022-05-31 2022-07-22 杭州博曼流体工业有限公司 一种模块式psa制氮机气量与纯度调节机构

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Application publication date: 20170707