CN201634419U - High-purity oxygen-air separation facility - Google Patents
High-purity oxygen-air separation facility Download PDFInfo
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- CN201634419U CN201634419U CN2010200103537U CN201020010353U CN201634419U CN 201634419 U CN201634419 U CN 201634419U CN 2010200103537 U CN2010200103537 U CN 2010200103537U CN 201020010353 U CN201020010353 U CN 201020010353U CN 201634419 U CN201634419 U CN 201634419U
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- air separation
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- purity oxygen
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Abstract
The utility model provides a high-purity oxygen-air separation facility, which comprises an air separation tower. A methane removal tower and a high-purity oxygen tower are arranged on an outer tower platform of the air separation tower; the methane removal tower and the high-purity oxygen tower are connected to the air separation tower through pipelines; and the methane removal tower is also connected to the high-purity oxygen tower through a pipeline. The high-purity oxygen air separation facility has small influence and small change on an air separation system, saves investment and has better effect, and is favorable for application.
Description
Technical field:
The utility model relates to and utilizes original air separation facility, increase a part of facility and utilize original flow process, the former empty liquid oxygen of producing that divides is carried out further rectifying, isolate hydrocarbon polymers such as wherein argon, nitrogen, methane, produce and contain the high purity oxygen of oxygen more than 99.999%.
Background technology:
At present, divide the field at sky, generally all produce oxygen or liquid oxygen more than 99.2%, and at electronic machine, use 99.999% oxygen in the medical treatment sometimes, and price can reach 5000-8000 unit/ton, added value is high.But present air separation facility, also can not satisfy far away the high efficiency extraction pure oxygen requirement '
The utility model content:
The technical problem that solves:
The utility model provides a kind of high purity oxygen air separation facility, its objective is that solution air separation facility in the past can not satisfy the problem of the requirement of high efficiency extraction pure oxygen.
Technical scheme: the utility model is achieved through the following technical solutions:
The high purity oxygen air separation facility comprises air separation column, it is characterized in that: the tower outer platform of described air separation column is provided with except that methane tower and high-purity oxygen column; Describedly remove the methane tower and high-purity oxygen column all is connected to air separation column by pipeline; The described methane tower that removes also is connected to high-purity oxygen column by pipeline.
The liquid oxygen chamber, top of removing the methane tower is connected to the liquid oxygen chamber of air separation column by the liquid oxygen input tube, and interchanger is connected to the following tower air chamber of air separation column by the Cryogenic air inlet pipe; The top oxygen outlet that removes the methane tower is connected to the rectifying chamber, middle part of high-purity oxygen column by pipeline; The following tower that the following interchanger of described high-purity oxygen column is connected to air separation column by the Cryogenic air inlet pipe air chamber that backflows; The last interchanger of high-purity oxygen column produces the chamber by the liquid nitrogen that the liquid nitrogen inlet pipe is connected to air separation column; The nitrogen outlet of described high-purity oxygen column and oxygen outlet are connected to the supercooler outlet and the interchanger of air separation column respectively by nitrogen return pipeline and oxygen return pipeline; Described high-purity oxygen column also is provided with the high purity oxygen oxygen exhaust; The following interchanger of described high-purity oxygen column and the interchanger that removes the methane tower all are connected to the liquid air chamber of air separation column by the liquid air delivery conduit.
Be provided with pneumatic diaphragm control valve on described Cryogenic air inlet pipe, liquid nitrogen inlet pipe, nitrogen return pipeline, oxygen return pipeline, liquid oxygen input tube, liquid air delivery conduit, Cryogenic air inlet pipe and high purity oxygen oxygen exhaust, pneumatic diaphragm control valve all is connected to the DCS controller by circuit.
Advantageous effect:
The utility model provides a kind of high purity oxygen air separation facility, comprises air separation column, and the tower outer platform of described air separation column is provided with except that methane tower and high-purity oxygen column; Describedly remove the methane tower and high-purity oxygen column all is connected to air separation column by pipeline; The described methane tower that removes also is connected to high-purity oxygen column by pipeline.
This utility model continues the difficult problem that rectifying promotes purity for solving product liquid oxygen (more than 99.2%), and it is as far as possible little to the change of original device, on original system uses as far as possible, we utilize maintenance opportunity, draw one the tunnel from the outlet of former empty branch liquid oxygen, enter, carry out preliminary rectifying except that the methane tower, after removing wherein methane and hydrocarbon polymer component, become behind the oxygen from removing methane tower top and draw and enter high-purity oxygen column middle part.
The rising steam that participate in to remove the rectifying of methane tower is emitted heat when being liquefied by Cryogenic air and the oxygen of vaporizing.The CH4 that is distillated and removes, argon component are with regard in the liquid oxygen that leaves decline and discharge outside the tower.The oxygen of removing methane enters the middle part of high-purity oxygen column 3, in the process that rises, is subjected to the washing of effusive liquid oxygen from K706 (interchanger), and promptly oxygen is liquefied in interchanger K706, becomes the raindrop shape and trickles downwards.And in tower, carry out the caloic exchange with the oxygen that rises on the column plate, and rising oxygen is discharged the vaporization of the nitrogen component in the liquid oxygen, and purified liquid oxygen drops to the bottom.In the oxygen intake bottom, liquid oxygen is vaporized in interchanger K707, as ascending gas, continues to carry out the caloic exchange with the dirty shape liquid oxygen that drips, and is thoroughly removed than the nitrogen component that the temperature of saturation of oxygen is low.
Obtain meeting the product-high purity oxygen of purity requirement at last from interchanger K707 bottom.The Cryogenic air that needs in the rectifying, liquid nitrogen are respectively from the air separation facility king-tower, and the liquid air that produces, nitrogen also enters king-tower, discharges with nitrogen, dirty nitrogen that king-tower produces.
The utility model mainly is to utilize empty the branch on the main device outside platform that 2 little ice chests are set, and installs respectively in the little ice chest and removes methane tower, high-purity oxygen column.Has only corresponding pipeline UNICOM in 7 pipelines and the king-tower; The function that makes full use of space advantage and original device reaches the purpose of production high purity oxygen.Present technique utilizes original device not change substantially exactly, and on the tower outer platform, increase by 2 small-sized rectifying tower and little ice chest, organic connection by tubing system, constitute a new distillation system, the part liquid oxygen is carried out rectifying, remove wherein contained impurity, obtain high-purity liquid oxygen of 99.999%, present technique is little to space division system influence, changes little, the investment saving.
Remove the pressure in methane tower and the high-purity oxygen column, liquid level control all adopts pneumatic diaphragm control valve to realize full automatic control by DCS, and it is stable to help operating mode.
High-purity liquid oxygen is sent to storage tank through variable valve, and storage tank adopts normal pressure storage tank, relies on gravity to flow into wherein.
Description of drawings:
Fig. 1 is the utility model background technology accompanying drawing;
Fig. 2 is an one-piece construction synoptic diagram of the present utility model;
Fig. 3 is the utility model theory structure synoptic diagram.
Embodiment: the utility model is described further below in conjunction with accompanying drawing:
As shown in Figure 2: the high purity oxygen air separation facility, comprise air separation column 1, the tower outer platform of described air separation column 1 is provided with except that methane tower 2 and high-purity oxygen column 3; Describedly remove methane tower 2 and high-purity oxygen column 3 all is connected to air separation column 1 by pipeline; The described methane tower 2 that removes also is connected to high-purity oxygen column 3 by pipeline.
As shown in Figure 3: liquid oxygen chamber, the top C704 that removes methane tower 2 is connected to the liquid oxygen chamber of air separation column 1 by liquid oxygen input tube 5, and interchanger 6 is connected to the following tower air chamber of air separation column 1 by Cryogenic air inlet pipe 7; The top oxygen outlet that removes methane tower 2 is connected to the rectifying chamber, middle part of high-purity oxygen column 3 by pipeline; The following tower that the following interchanger 4 of described high-purity oxygen column 3 is connected to air separation column 1 by Cryogenic air inlet pipe 8 air chamber that backflows; The last interchanger 9 of high-purity oxygen column 3 produces the chamber by the liquid nitrogen that liquid nitrogen inlet pipe 14 is connected to air separation column 1; The nitrogen outlet of described high-purity oxygen column 3 and oxygen outlet are connected to the supercooler outlet and the interchanger of air separation column 1 respectively by nitrogen return pipeline 11 and oxygen return pipeline 12; The nitrogen outlet that specifically is exactly high-purity oxygen column 3 exports by the supercooler that nitrogen return pipeline 11 is connected to air separation column 1; The oxygen outlet of high-purity oxygen column 3 is connected to the interchanger of air separation column 1.
Described high-purity oxygen column 3 also is provided with the high purity oxygen oxygen exhaust; The following interchanger 4 of described high-purity oxygen column 3 and remove methane tower 2 interchanger 6 all is connected to the liquid air chamber of air separation column 1 by liquid air delivery conduit 13.
As shown in Figure 3, this utility model continues the difficult problem that rectifying promotes purity for solving product liquid oxygen (more than 99.2%), and it is as far as possible little to the change of original device, this utility model is drawn a Cryogenic air inlet pipe 7 from the outlet of former empty branch liquid oxygen, Cryogenic air is introduced except that in the methane tower 2, carry out preliminary rectifying, remove wherein methane and hydrocarbon polymer component after, draw the rectifying chamber that enters high-purity oxygen column 3 middle parts from removing methane top of tower oxygen outlet after becoming oxygen.
In removing methane tower 2, the rising steam that participate in to remove the rectifying of methane tower is emitted heat when being liquefied by Cryogenic air and the oxygen of vaporizing, described Cryogenic air is drawn from air separation column 1 by Cryogenic air inlet pipe 7, and described oxygen draws from air separation column 1 by liquid oxygen input tube 5.The CH that is distillated and removes
4, the argon component is with regard in the liquid oxygen that leaves decline and discharge outside the towers by liquid air delivery conduit 13.The oxygen of removing methane enters the middle part of high-purity oxygen column 3, in the process that rises, be liquefied in last interchanger 9, and the oxygen of follow-up rising is subjected to the washing of effusive liquid oxygen from last interchanger 9, becomes the raindrop shape and trickles downwards.And in tower, carry out the caloic exchange with the oxygen that rises on the column plate, and rising oxygen is expelled to air separation column 1 with the vaporization of the nitrogen component in the liquid oxygen and by nitrogen return pipeline 11, and purified liquid oxygen drops to the bottom.In high-purity oxygen column 3, with the bottom of removing the oxygen intake that methane tower 2 is communicated with, liquid oxygen is being vaporized in the interchanger 4 down, as ascending gas, continues to carry out caloic and exchange with the dirty shape liquid oxygen that drips, and thoroughly removed than the nitrogen component that the temperature of saturation of oxygen is low.
Obtain meeting the product-high purity oxygen of purity requirement at last from following interchanger 4 bottoms, this high purity oxygen is discharged by high purity oxygen oxygen exhaust 10.The Cryogenic air that needs in the rectifying, liquid nitrogen passes through Cryogenic air inlet pipe 8 and liquid nitrogen inlet pipe 14 respectively from air separation facility king-tower 1, and the liquid air that produces, nitrogen also enters king-tower by liquid air delivery conduit 13 and nitrogen return pipeline 11, discharges with nitrogen, dirty nitrogen that king-tower produces.
Be provided with pneumatic diaphragm control valve on described Cryogenic air inlet pipe 8, liquid nitrogen inlet pipe 14, nitrogen return pipeline 11, oxygen return pipeline 12, liquid oxygen input tube 5, liquid air delivery conduit 13, Cryogenic air inlet pipe 7 and high purity oxygen oxygen exhaust 10, pneumatic diaphragm control valve all is connected to the DCS controller by circuit.
That is to say the pressure that removes in methane tower and the high-purity oxygen column, liquid level control all adopts known pneumatic diaphragm control valve to realize full automatic control by DCS, and it is stable to help operating mode.
High-purity liquid oxygen is sent to storage tank through variable valve, and storage tank adopts normal pressure storage tank, relies on gravity to flow into wherein.
The utility model mainly is to utilize empty the branch on the main device outside platform that 2 little ice chests are set, and installs respectively in the little ice chest and removes methane tower, high-purity oxygen column.Has only corresponding pipeline UNICOM in 7 pipelines and the king-tower; The function that makes full use of space advantage and original device reaches the purpose of production high purity oxygen.Present technique utilizes original device not change substantially exactly, and on the tower outer platform, increase by 2 small-sized rectifying tower and little ice chest, organic connection by tubing system, constitute a new distillation system, the part liquid oxygen is carried out rectifying, remove wherein contained impurity, obtain high-purity liquid oxygen of 99.999%, present technique is little to space division system influence, changes little, the investment saving.
Claims (3)
1. the high purity oxygen air separation facility comprises air separation column (1), it is characterized in that: the tower outer platform of described air separation column (1) is provided with except that methane tower (2) and high-purity oxygen column (3); Describedly remove methane tower (2) and high-purity oxygen column (3) all is connected to air separation column (1) by pipeline; The described methane tower (2) that removes also is connected to high-purity oxygen column (3) by pipeline.
2. high purity oxygen air separation facility according to claim 1, it is characterized in that: the liquid oxygen chamber, top of removing methane tower (2) is connected to the liquid oxygen chamber of air separation column (1) by liquid oxygen input tube (5), and interchanger (6) is connected to the following tower air chamber of air separation column (1) by Cryogenic air inlet pipe (7); The top oxygen outlet that removes methane tower (2) is connected to the rectifying chamber, middle part of high-purity oxygen column (3) by pipeline; The following tower that the following interchanger (4) of described high-purity oxygen column (3) is connected to air separation column (1) by Cryogenic air inlet pipe (8) air chamber that backflows; The last interchanger (9) of high-purity oxygen column (3) produces the chamber by the liquid nitrogen that liquid nitrogen inlet pipe (14) is connected to air separation column (1); The nitrogen outlet of described high-purity oxygen column (3) and oxygen outlet are connected to the supercooler outlet and the interchanger of air separation column (1) respectively by nitrogen return pipeline (11) and oxygen return pipeline (12); Described high-purity oxygen column (3) also is provided with high purity oxygen oxygen exhaust (10); The following interchanger (4) of described high-purity oxygen column (3) and the interchanger (6) that removes methane tower (2) all are connected to the liquid air chamber of air separation column (1) by liquid air delivery conduit (13).
3. according to high purity oxygen air separation facility according to claim 2, it is characterized in that: be provided with pneumatic diaphragm control valve on described Cryogenic air inlet pipe (8), liquid nitrogen inlet pipe (14), nitrogen return pipeline (11), oxygen return pipeline (12), liquid oxygen input tube (5), liquid air delivery conduit (13), Cryogenic air inlet pipe (7) and high purity oxygen oxygen exhaust (10), pneumatic diaphragm control valve all is connected to the DCS controller by circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200103537U CN201634419U (en) | 2010-01-20 | 2010-01-20 | High-purity oxygen-air separation facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200103537U CN201634419U (en) | 2010-01-20 | 2010-01-20 | High-purity oxygen-air separation facility |
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| Publication Number | Publication Date |
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| CN201634419U true CN201634419U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010200103537U Expired - Fee Related CN201634419U (en) | 2010-01-20 | 2010-01-20 | High-purity oxygen-air separation facility |
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| CN (1) | CN201634419U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090188A (en) * | 2011-11-01 | 2013-05-08 | 中煤能源黑龙江煤化工有限公司 | Liquid oxygen system |
| CN107726732A (en) * | 2017-10-18 | 2018-02-23 | 上海宝钢气体有限公司 | A kind of method and device for producing high pure oxygen |
-
2010
- 2010-01-20 CN CN2010200103537U patent/CN201634419U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090188A (en) * | 2011-11-01 | 2013-05-08 | 中煤能源黑龙江煤化工有限公司 | Liquid oxygen system |
| CN103090188B (en) * | 2011-11-01 | 2015-06-17 | 中煤能源黑龙江煤化工有限公司 | Liquid oxygen system |
| CN107726732A (en) * | 2017-10-18 | 2018-02-23 | 上海宝钢气体有限公司 | A kind of method and device for producing high pure oxygen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20130120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |