CN102992283A - Adjustment method for rapidly recovering oxygenerator argon system - Google Patents
Adjustment method for rapidly recovering oxygenerator argon system Download PDFInfo
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- CN102992283A CN102992283A CN2011102676369A CN201110267636A CN102992283A CN 102992283 A CN102992283 A CN 102992283A CN 2011102676369 A CN2011102676369 A CN 2011102676369A CN 201110267636 A CN201110267636 A CN 201110267636A CN 102992283 A CN102992283 A CN 102992283A
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Abstract
The invention provides an adjustment method for rapidly recovering an oxygenerator argon system. Lower tower liquid air is gradually guided into the condenser of a crude argon II tower for cooling and a liquid argon pump is started when oxygen and nitrogen purities are adjusted after the lower tower condition is established, the purity of liquid nitrogen is qualified and a main cooling liquid level is normal, a bottom liquid level adjustment valve of the crude argon II tower is properly adjusted to control the bottom liquid level to a normal value, an argon fraction can smoothly enters the crude argon II tower with the raise of the liquid level of the condenser of the crude argon II tower, a pure argon tower is added when the condenser and the bottom liquid level of the crude argon II tower are tending toward stability with the continuous increase of the crude argon flow approaching a normal flow, and the bottom liquid of the pure argon tower is gradually guided into the bottom of the crude argon II tower after the pure argon tower condition is established, so argon evacuation is reduced, argon is liquefied and guided into the bottom of the crude argon II tower, the content of argon in the reflux liquid of a crude I tower is improved, the deoxidation speed of a crude argon system is accelerated, and a nitrogen component in the argon fraction can be discharged through the waste argon adjustment valve of the pure argon tower to avoid nitrogen obstruction, thereby the recovery of the argon system is accelerated. Compared with traditional argon adjustment methods, the rapid system recovery adjustment method provided by the invention has the advantages of rapid obtaining of qualified liquid argon products, and waste reduction.
Description
Technical field
The present invention relates to the inflation method of the fast quick-recovery of a kind of oxygenerator ar system, the inflation method that ar system recovers when being applicable to all kinds of rectifying legal system oxygen hydrogen-free argon producing equipment cold conditions start.
Background technology
The empty minute technology of rectification method is extensively utilized in the whole world at present, an empty minute technology also reaches its maturity, most of air separation plants all attach the argon extraction system, the principle of hydrogen-free argon producing is roughly similar, all be to utilize rectification method, but in the adjustment of ar system because the various device flow process is different, operator's thinking is different, so inflation method is some difference also, effect is also just naturally different.
Generally, the precondition that we drop into ar system is that the king-tower operating mode is stable and cold is sufficient, and oxygen nitrogen purity is qualified.When dropping into, slowly set up first crude argon II tower condenser liquid level to guarantee the normal operation of crude argon II tower, adjust again the argon cut to normal range, along with the liquefaction of advancing crude argon II tower crude argon, crude argon II tower liquid level hydrops is after more than the 1200mm, open the liquid argon pump, discharge N in the argon cut by blow-off valve after opening crude argon II tower
2Prevent the nitrogen plug, the purification of crude argon II tower, when the argon gas oxygen level that goes out crude argon II tower during less than 2PPM, the beginning drain enters the pure argon column condenser leads simultaneously argon gas and enters pure argon column, denitrogenates by pure argon column, obtains qualified liquid argon product in its bottom.It is incremental that tradition is transferred the argon method, and stable in the king-tower operating mode, oxygen nitrogen purity is qualified, and the normal situation of each parameter index just begins to consider the adjustment of ar system.
In addition; because general tree ar system discharge opeing during provisional shutdown; so during start; ar system crude argon II crude argon column bottoms level is in a high position usually; its liquid level seals the inlet mouth that crude argon advances crude argon II tower most probably; its liquid level such as only have to drop to inlet mouth when following, just can set up the crude argon system condition, prolonged the time that the ar system operating mode is set up.In the process of argon cut deoxygenation, our the first index is the oxygen level that the argon cut goes out crude argon I tower, make this index comparatively fast reach standard, must improve fast the namely content of argon in the crude argon II tower bottom liquid of its phegma, at this time, we must reduce the emptying amount of argon cut behind the crude argon II tower, to reduce the waste of argon, if just may cause the nitrogen component in the argon cut to can not get sufficient discharging but reduce the emptying amount, the place gathers at crude argon II tower condenser, cause the nitrogen plug, under the balance, we also are reluctant the nitrogen plug at many emptying of preferring.So that argon cut deaeration time prolongs again, postpone the time of pure argon column input and acquisition straight argon product like this, affected liquid argon yield.
Summary of the invention
Purpose of the present invention just provides the inflation method of the fast quick-recovery of a kind of oxygenerator ar system, and the method can shorten ar system time of recovery.The object of the invention can realize by following scheme: the inflation method of the fast quick-recovery of a kind of oxygenerator ar system, set up in lower tower operating mode, purity liquid nitrogen is qualified, after main cold liquid level reaches normally, when adjusting oxygen and nitrogen gas purity, beginning is led gradually lower tower liquid air and is entered crude argon II tower condenser and cool off, start simultaneously the liquid argon pump, the an amount of crude argon II tower bottom Liquid level adjusting valve of adjusting is controlled its liquid level to normal value, raising along with crude argon II tower condenser liquid level, the argon cut can enter crude argon II tower smoothly, along with the crude argon flow constantly increase near normal discharge the time, crude argon II tower condenser and bottoms level thereof also tend towards stability, drop into pure argon column this moment, after the pure argon column operating mode is set up, its bottom liquid is imported crude argon II tower bottom gradually, the benefit of doing like this is, both reduced the emptying of argon, make its liquefaction and import crude argon II tower bottom, improve the argon content of crude argon I tower phegma, crude argon system deoxidation speed is accelerated, again can be by drain nitrogen component in the argon cut of the useless argon gas variable valve of pure argon column, avoid the nitrogen plug, thereby accelerated the recovery of ar system.The method of the adjustment of the fast quick-recovery of a kind of ar system can obtain qualified liquid argon product fast than traditional accent argon method, can cut the waste again.
Claims (1)
1. the inflation method of the fast quick-recovery of oxygenerator ar system, it is characterized in that: set up in lower tower operating mode, purity liquid nitrogen is qualified, after main cold liquid level reaches normally, when adjusting oxygen and nitrogen gas purity, beginning is led gradually lower tower liquid air and is entered crude argon II tower condenser and cool off, start simultaneously the liquid argon pump, the an amount of crude argon II tower bottom Liquid level adjusting valve of adjusting is controlled its liquid level to normal value, raising along with crude argon II tower condenser liquid level, the argon cut can enter crude argon II tower smoothly, along with the crude argon flow constantly increase near normal discharge the time, crude argon II tower condenser and bottoms level thereof also tend towards stability, drop into pure argon column this moment, after the pure argon column operating mode is set up, its bottom liquid is imported crude argon II tower bottom gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102676369A CN102992283A (en) | 2011-09-11 | 2011-09-11 | Adjustment method for rapidly recovering oxygenerator argon system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102676369A CN102992283A (en) | 2011-09-11 | 2011-09-11 | Adjustment method for rapidly recovering oxygenerator argon system |
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| Publication Number | Publication Date |
|---|---|
| CN102992283A true CN102992283A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2011102676369A Pending CN102992283A (en) | 2011-09-11 | 2011-09-11 | Adjustment method for rapidly recovering oxygenerator argon system |
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| CN (1) | CN102992283A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890283A (en) * | 2015-01-26 | 2016-08-24 | 宝山钢铁股份有限公司 | Nitrogen blockage prevention and control method and system for internal pressure boosting air separator |
| CN109764638A (en) * | 2018-12-13 | 2019-05-17 | 包头钢铁（集团）有限责任公司 | A kind of large oxygen-making machine group ar system varying duty method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318120B1 (en) * | 2000-08-11 | 2001-11-20 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Cryogenic distillation system for air separation |
| CN101634837A (en) * | 2009-08-17 | 2010-01-27 | 浙江大学 | Method for preventing and controlling nitrogen blockage of argon preparation system of space division device |
-
2011
- 2011-09-11 CN CN2011102676369A patent/CN102992283A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318120B1 (en) * | 2000-08-11 | 2001-11-20 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Cryogenic distillation system for air separation |
| CN101634837A (en) * | 2009-08-17 | 2010-01-27 | 浙江大学 | Method for preventing and controlling nitrogen blockage of argon preparation system of space division device |
Non-Patent Citations (1)
| Title |
|---|
| 钱立新: "缩短全精馏制氩系统启动时间的分析和操作", 《深冷技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890283A (en) * | 2015-01-26 | 2016-08-24 | 宝山钢铁股份有限公司 | Nitrogen blockage prevention and control method and system for internal pressure boosting air separator |
| CN105890283B (en) * | 2015-01-26 | 2018-08-10 | 宝山钢铁股份有限公司 | The nitrogen plug prevention and control method and system of interior boosting space division |
| CN109764638A (en) * | 2018-12-13 | 2019-05-17 | 包头钢铁（集团）有限责任公司 | A kind of large oxygen-making machine group ar system varying duty method |
| CN109764638B (en) * | 2018-12-13 | 2021-11-19 | 包头钢铁（集团）有限责任公司 | Load-variable method for argon system of large oxygen generator set |
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Application publication date: 20130327 |