CN211782277U - 一种液氧提纯系统 - Google Patents
一种液氧提纯系统 Download PDFInfo
- Publication number
- CN211782277U CN211782277U CN202020423741.1U CN202020423741U CN211782277U CN 211782277 U CN211782277 U CN 211782277U CN 202020423741 U CN202020423741 U CN 202020423741U CN 211782277 U CN211782277 U CN 211782277U
- Authority
- CN
- China
- Prior art keywords
- tower
- oxygen
- pure oxygen
- pure
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- F25J3/04436—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 at least a triple pressure main column system
- F25J3/04454—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 at least a triple pressure main column system a main column system not otherwise provided, e.g. serially coupling of columns or more than three pressure levels
-
- 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
Landscapes
- 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
本实用新型是一种液氧提纯系统，包括空分精馏塔和纯氧塔，空分精馏塔由上塔和下塔组成，上塔底部设有蒸发器A，蒸发器A的输入端与下塔顶部连接，蒸发器A的输出端与下塔连接，所述纯氧塔底部设有蒸发器B，所述下塔底部设有空气输入管，还包括粗氩塔，所述上塔下部与粗氩塔之间设有连接管道，粗氩塔中部与纯氧塔顶部之间设有输液管道，所述空气输入管设有分支管，分支管连接蒸发器B的输入端，蒸发器B的输出端通过回流管道连接所述上塔中部，纯氧塔顶部设有氧气回收管，氧气回收管与上塔中部连接，纯氧塔底部设有放液管，放液管上设有纯液氧放液阀；本实用新型在满足高纯氧含量的前提下，结构及工艺更简单，能耗更低。
Description
技术领域
本实用新型涉及空气分离技术领域，具体是一种液氧提纯系统。
背景技术
高纯度的液氧主要用于科学研究、集成电路和半导体器件的生产以及其他对氧气纯度要求较高的领域，要求含氧量超过99.999%，而空气的组分包括氧、氢、氩、氮、二氧化碳、水和烃类气体等，其中烃类气体主要表现为甲烷，水分和二氧化碳可以通过分子筛纯化系统在原料空气中去除，其他组份则需在精馏塔内低温精馏进行分离，现有的纯氧制备系统结构复杂，工艺流程繁琐，能耗高，设备维护成本高。
发明内容
本实用新型的目的就是为了解决现有的纯氧制备系统结构复杂，工艺流程繁琐，能耗高，设备维护成本高的问题，提供一种液氧提纯系统。
本实用新型的具体方案是：一种液氧提纯系统，包括空分精馏塔和纯氧塔，空分精馏塔由上塔和下塔组成，上塔底部设有蒸发器A，蒸发器A的输入端与下塔顶部连接，蒸发器A的输出端与下塔连接，所述纯氧塔底部设有蒸发器B，所述下塔底部设有空气输入管，还包括粗氩塔，所述上塔下部与粗氩塔之间设有连接管道，粗氩塔中部与纯氧塔顶部之间设有输液管道，所述空气输入管设有分支管，分支管连接蒸发器B的输入端，蒸发器B的输出端通过回流管道连接所述上塔中部，纯氧塔顶部设有氧气回收管，氧气回收管与上塔中部连接，纯氧塔底部设有放液管，放液管上设有纯液氧放液阀。
本实用新型所述输液管道上设有氧馏分抽取阀，所述回流管道或分支管上设有节流阀。
本实用新型所述纯氧塔采用搭板式精馏塔。
本实用新型的工作原理如下：空气进入下塔后经过下塔和上塔的精馏，甲烷组分主要呈气态富集在上塔的上部，因此从上塔下部抽取的液态馏分基本去除了甲烷，进入粗氩塔二次精馏后，氮气集中在粗氩塔顶部，粗氩塔的中下部液态馏分主要是氧和氩，从中部抽取馏分送入纯氧塔内进行三次精馏，在纯氧塔中沿着逐块塔板流下与塔底的上升气体充分换热后，在塔底得到馏分中沸点最高的纯液氧，而塔顶蒸发气氧返回到上塔中部。
本实用新型具有以下有益效果：结构及工艺更简单，且能满足高纯氧含量的要求，简化工艺流程降低了生产能耗。
附图说明
图1是本实用新型流程示意图；
图中：1-下塔，2-蒸发器A，3-上塔，4-回流管道，5-粗氩塔，6-节流阀，7-输液管道，8-氧馏分抽取阀，9-纯氧塔，10-蒸发器B，11-空气输入管，12-分支管，13-放液管。
具体实施方式
参见图1，本实施例包括空分精馏塔、纯氧塔9和粗氩塔5，空分精馏塔由上塔3和下塔1组成，上塔3底部设有蒸发器A2，蒸发器A2的输入端与下塔1顶部连接，蒸发器A2的输出端与下塔1连接，所述纯氧塔9底部设有蒸发器B10，所述下塔1底部设有空气输入管11，所述上塔3下部与粗氩塔5之间设有连接管道，粗氩塔5中部与纯氧塔9顶部之间设有输液管道7，所述空气输入管11设有分支管12，分支管12连接蒸发器B10的输入端，蒸发器B10的输出端通过回流管道4连接所述上塔3中部，纯氧塔9顶部设有氧气回收管，氧气回收管与上塔3中部连接，纯氧塔9底部设有放液管13，放液管13上设有纯液氧放液阀。
本实施例所述输液管道7上设有氧馏分抽取阀8，所述回流管道4（也可以是分支管12）上设有节流阀6，用于控制进入蒸发器B10的热源空气流量。
本实施例所述纯氧塔9采用搭板式精馏塔。
Claims (3)
1.一种液氧提纯系统，包括空分精馏塔和纯氧塔，空分精馏塔由上塔和下塔组成，上塔底部设有蒸发器A，蒸发器A的输入端与下塔顶部连接，蒸发器A的输出端与下塔连接，所述纯氧塔底部设有蒸发器B，所述下塔底部设有空气输入管，其特征是：还包括粗氩塔，所述上塔下部与粗氩塔之间设有连接管道，粗氩塔中部与纯氧塔顶部之间设有输液管道，所述空气输入管设有分支管，分支管连接蒸发器B的输入端，蒸发器B的输出端通过回流管道连接所述上塔中部，纯氧塔顶部设有氧气回收管，氧气回收管与上塔中部连接，纯氧塔底部设有放液管，放液管上设有纯液氧放液阀。
2.根据权利要求1所述的一种液氧提纯系统，其特征是：所述输液管道上设有氧馏分抽取阀，所述回流管道或分支管上设有节流阀。
3.根据权利要求1所述的一种液氧提纯系统，其特征是：所述纯氧塔采用搭板式精馏塔。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020423741.1U CN211782277U (zh) | 2020-03-30 | 2020-03-30 | 一种液氧提纯系统 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020423741.1U CN211782277U (zh) | 2020-03-30 | 2020-03-30 | 一种液氧提纯系统 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211782277U true CN211782277U (zh) | 2020-10-27 |
Family
ID=72929011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020423741.1U Active CN211782277U (zh) | 2020-03-30 | 2020-03-30 | 一种液氧提纯系统 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211782277U (zh) |
-
2020
- 2020-03-30 CN CN202020423741.1U patent/CN211782277U/zh active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105692552B (zh) | 一种高效节能的高纯一氧化碳和氢气的精馏工艺 | |
| CN105716370B (zh) | 一种从合成气制取富氢气和一氧化碳的系统及方法 | |
| CN104406364B (zh) | 一种双塔耦合的氩气回收纯化设备及氩气回收纯化方法 | |
| CN104990366B (zh) | 一种从空分装置液氮中提取粗氖氦产品的方法 | |
| CN101857201A (zh) | 一种生产高纯氧及氪氙浓缩物的装置及其使用方法 | |
| CN211782277U (zh) | 一种液氧提纯系统 | |
| CN212390705U (zh) | 一种稀有气体氪氙精制及超纯氧的生产装置 | |
| CN106885449B (zh) | 利用液化天然气冷能的空气分离工艺 | |
| CN108362074B (zh) | 一种从特大型空分设备中提取氪和氙的方法和装置 | |
| CN207991091U (zh) | 一种从特大型空分设备中提取氪和氙的装置 | |
| CN202470618U (zh) | 以规整填料精馏分离氩气与氧气的制备装置 | |
| CN206359241U (zh) | 一种从合成气制取富氢气和一氧化碳的系统 | |
| CN201762096U (zh) | 一种生产高纯氧及氪氙浓缩物的装置 | |
| CN115060042A (zh) | 一种虹吸式制冷的氪氙精制装置 | |
| CN109883139A (zh) | 一种基于富氧空分的高效提氩工艺 | |
| CN115560541A (zh) | 一种虹吸式制冷的氪氙精制装置 | |
| CN212842474U (zh) | 一种可降低液氮使用量同时生产高纯氧的氪氙精制系统 | |
| CN210346071U (zh) | 一种集成脱乙烯、脱氢、脱甲烷、脱氮的深冷分离装置 | |
| CN115069063A (zh) | 一种回收氢气提浓装置尾气中乙烷的系统 | |
| CN101672565B (zh) | 一种全精馏制备纯氪和纯氙的方法 | |
| CN208859994U (zh) | 一种提纯co、ch4的深冷分离系统 | |
| CN211290725U (zh) | 一种集成高纯氮和氩气的回收装置 | |
| CN208653062U (zh) | 一种利用液化空气提取贫氪氙产品的空分系统 | |
| CN208361888U (zh) | 高纯氧气提取及纯化装置 | |
| CN207404842U (zh) | 一种提高合成氨驰放气净化分离稳定性和提氩率的系统 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |