CN102494515A - Process for preparing high-pressure medical oxygen - Google Patents
Process for preparing high-pressure medical oxygen Download PDFInfo
- Publication number
- CN102494515A CN102494515A CN2011103977679A CN201110397767A CN102494515A CN 102494515 A CN102494515 A CN 102494515A CN 2011103977679 A CN2011103977679 A CN 2011103977679A CN 201110397767 A CN201110397767 A CN 201110397767A CN 102494515 A CN102494515 A CN 102494515A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- high pressure
- heat
- heat exchange
- heat exchanger
- 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.)
- Pending
Links
Images
Landscapes
- Separation By Low-Temperature Treatments (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a process for preparing high-pressure medical oxygen. By the process, the oxygen has high concentration and low impurity content and does not contain toxic and harmful media, the whole process is low in energy consumption and danger, and process production equipment has low maintenance amount, is low in cost and occupies small area. The process sequentially comprises air impurity removal, compression, precooling and purification steps, and is characterized by comprising the following steps of: introducing the purified air into a main heat exchanger and a high-pressure oxygen wound-tube heat exchanger in two paths respectively; cooling to a saturation temperature, mixing and introducing into a tower bottom condensation evaporator of a rectifying column; performing phase-change heat exchange together with liquid oxygen, subcooling in a subcooler, rectifying on the top of the rectifying column, and thus obtaining the liquid oxygen at the bottom of the rectifying column; and boosting the liquid oxygen, exchanging heat with the purified air in the high-pressure oxygen wound-tube heat exchanger, vaporizing in a supercritical state, restoring to a normal temperature, discharging the oxygen from an ice chest, directly bottling, and thus obtaining the high-pressure medical oxygen.
Description
Technical field
The present invention relates to the technical field of air separation, be specially a kind of high pressure medical oxygen reparation technology.
Background technology
Along with the raising of The development in society and economy and living standards of the people, increasing to the demand of medical oxygen, simultaneously the quality of medical oxygen also to be had higher requirement, concentration of oxygen is high, impurity is low, do not contain poisonous hazardous medium.Past Traditional use oxygen compressor can medical oxygen can not satisfy this requirement, and the oxygen compressor energy consumption is high, dangerous greatly simultaneously, maintenance workload is big, maintenance cost is high, floor space is big.
Summary of the invention
To the problems referred to above; The invention provides a kind of high pressure medical oxygen reparation technology; It makes that concentration of oxygen is high, impurity is low, do not contain poisonous hazardous medium, and the energy consumption of whole technology is low, danger is little, and the maintenance of explained hereafter equipment is little, expense is low, floor space is little.
A kind of high pressure medical oxygen reparation technology, its technical scheme is such: removal of impurities, compression, precooling, purification that it comprises air successively is characterized in that: cleaned air passes divides two-way to get into main heat exchanger and hyperbaric oxygen respectively around heat exchange of heat pipe; Be cooled to the tower still condenser/evaporator that is mixed into rectifying column after the saturation temperature, cross cold back and get into rectifying tower top portion and carry out rectifying, obtain liquid oxygen in rectifier bottoms with getting into subcooler behind the liquid oxygen phase-change heat-exchange; Liquid oxygen is through after boosting; Get into hyperbaric oxygen around heat exchange of heat pipe,, under supercriticality, vaporize with the heat exchange that purifies air; Cooling box directly fills bottle after being returned to normal temperature, obtains the high pressure medical oxygen.
It is further characterized in that: said rectifying column is specially single rectification column;
Said main heat exchanger is specially aluminum plate-fin heat exchanger;
It is that the high pressure of oxygen is around heat exchange of heat pipe that said hyperbaric oxygen is specially cooling medium around heat exchange of heat pipe;
The liquid oxygen part that said single rectification column bottom obtains and the rising steam of saturated air phase-change heat-exchange vaporization as said single rectification column; Participate in the rectifying of single rectification column; Another part gets into the liquid oxygen booster pump and boosts, and the high pressure liquid oxygen after boosting gets into hyperbaric oxygen around heat exchange of heat pipe, with the heat exchange that purifies air; Under supercriticality, vaporize, be returned to normal temperature after cooling box directly fill bottle;
The waste gas that produces at the single rectification column top expands through turbo-expander after through the subcooler re-heat, and waste gas gets into subcooler and main heat exchanger successively after expanding, with the cleaned air passes heat exchange, after the re-heat as the regeneration gas of purification system.
After adopting technology of the present invention; Its plant air compressor row pressure is low, bottling has at last been save and filled a bottle oxygen machine; Energy consumption is low, greatly reduce the energy consumption of filling bottle type air separation unit require, dangerous little; And avoided the pollution of compressor to oxygen, it makes that concentration of oxygen is high, impurity is low, do not contain poisonous hazardous medium.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Produce high pressure medical oxygen product; Requirement pressure is 15Mpa: see Fig. 1; Raw air is removed dust in air and impurity through air cleaner 1, be compressed to 1.2MPa by air compressor 2 then after, reduce air themperatures through cold air unit 3 again; Get into and get into purification system 5 after separator 4 separates free water, remove H
2O, CO
2, C
2H
2And other hydrocarbon, cleaned air passes is divided into two-way: the one tunnel gets into hyperbaric oxygen around heat exchange of heat pipe 6, carries out heat exchange with overcritical liquid oxygen, and when being normal temperature high voltage oxygen to vaporization of liquid oxygen, purifying air is condensed into saturated liquid; Another road is carried out heat exchange and is cooled to saturation temperature through main heat exchanger 7 and expansion waste gas; The saturated liquid air of this two-way converges and mixes the tower still condenser/evaporator 9 that the back gets into single rectification column 8; Cross cold back entering single rectification column 8 tops with entering subcooler 10 behind the liquid oxygen phase-change heat-exchange and carry out rectifying; Obtain liquid oxygen in single rectification column 8 bottoms, the top obtains useless nitrogen.The liquid oxygen part that single rectification column 8 bottoms obtain and the rising steam of saturated air phase-change heat-exchange vaporization as single rectification column 8; Participate in the rectifying of single rectification column 8; Another part gets into liquid oxygen booster pump 11 and boosts, and the high pressure liquid oxygen after boosting gets into hyperbaric oxygen around heat exchange of heat pipe 6, with the heat exchange that purifies air; Under supercriticality, vaporize, be returned to normal temperature after cooling box directly fill bottle.
The waste gas that produces at single rectification column 8 tops expands through turbo-expander 12 through subcooler 10 re-heats afterwards, and the waste gas after the expansion gets into subcooler 10 and main heat exchanger 7 successively, with the cleaned air passes heat exchange, after the re-heat as the regeneration gas of purification system 5.
Wherein main heat exchanger 7 is specially aluminum plate-fin heat exchanger, and its operating pressure does not allow to surpass 8.0MPa; Hyperbaric oxygen around heat exchange of heat pipe 6 be specially cooling medium be the high pressure of oxygen around heat exchange of heat pipe, its operating pressure is 15MPa.
Claims (6)
1. high pressure medical oxygen reparation technology, removal of impurities, compression, precooling, purification that it comprises air successively is characterized in that: cleaned air passes divides two-way to get into main heat exchanger and hyperbaric oxygen respectively around heat exchange of heat pipe; Be cooled to the tower still condenser/evaporator that is mixed into rectifying column after the saturation temperature, cross cold back and get into rectifying tower top portion and carry out rectifying, obtain liquid oxygen in rectifier bottoms with getting into subcooler behind the liquid oxygen phase-change heat-exchange; Liquid oxygen is through after boosting; Get into hyperbaric oxygen around heat exchange of heat pipe,, under supercriticality, vaporize with the heat exchange that purifies air; Cooling box directly fills bottle after being returned to normal temperature, obtains the high pressure medical oxygen.
2. a kind of high pressure medical oxygen reparation technology according to claim 1, it is characterized in that: said rectifying column is specially single rectification column.
3. a kind of high pressure medical oxygen reparation technology according to claim 1, it is characterized in that: said main heat exchanger is specially aluminum plate-fin heat exchanger.
4. a kind of high pressure medical oxygen reparation technology according to claim 1 is characterized in that: it is that the high pressure of oxygen is around heat exchange of heat pipe that said hyperbaric oxygen is specially cooling medium around heat exchange of heat pipe.
5. a kind of high pressure medical oxygen reparation technology according to claim 2; It is characterized in that: the liquid oxygen part that said single rectification column bottom obtains and the rising steam of saturated air phase-change heat-exchange vaporization as said single rectification column, participate in the rectifying of single rectification column, another part gets into the liquid oxygen booster pump and boosts; High pressure liquid oxygen after boosting gets into hyperbaric oxygen around heat exchange of heat pipe; With the heat exchange that purifies air, under supercriticality, vaporize, be returned to normal temperature after cooling box directly fill bottle.
6. according to claim 2 or 5 described a kind of high pressure medical oxygen reparation technologies; It is characterized in that: after the waste gas process subcooler re-heat that the single rectification column top produces, expand through turbo-expander; The back waste gas that expands gets into subcooler and main heat exchanger successively; With the cleaned air passes heat exchange, after the re-heat as the regeneration gas of purification system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103977679A CN102494515A (en) | 2011-12-05 | 2011-12-05 | Process for preparing high-pressure medical oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103977679A CN102494515A (en) | 2011-12-05 | 2011-12-05 | Process for preparing high-pressure medical oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102494515A true CN102494515A (en) | 2012-06-13 |
Family
ID=46186359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103977679A Pending CN102494515A (en) | 2011-12-05 | 2011-12-05 | Process for preparing high-pressure medical oxygen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102494515A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453314A (en) * | 2013-08-15 | 2013-12-18 | 湖北和远气体股份有限公司 | Method for adding rich oxygen in liquid waste treatment process |
| CN111271597A (en) * | 2019-12-24 | 2020-06-12 | 贵州亚港气体有限公司 | Oxygen filling method |
| CN111928575A (en) * | 2020-08-10 | 2020-11-13 | 广东汇兴空气液化有限公司 | Medical oxygen preparation method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076269A (en) * | 1992-03-12 | 1993-09-15 | 孙克澄 | Air separating method and equipment |
| CN1220386A (en) * | 1997-11-26 | 1999-06-23 | 北京市奥达石化新技术开发中心 | Process for separating high pure nitrogen from air |
| JP2003180838A (en) * | 2001-12-21 | 2003-07-02 | Teijin Ltd | Medical oxygen concentration device |
| JP2004057277A (en) * | 2002-07-25 | 2004-02-26 | Teijin Ltd | Oxygen concentrator for medical use |
| CN101886871A (en) * | 2010-08-04 | 2010-11-17 | 四川空分设备(集团)有限责任公司 | Method and device for producing pressure oxygen by air separation |
| CN101929790A (en) * | 2010-08-19 | 2010-12-29 | 苏州制氧机有限责任公司 | High-purity nitrogen equipment |
| CN102032755A (en) * | 2010-08-03 | 2011-04-27 | 苏州制氧机有限责任公司 | Air separation device |
| CN102249196A (en) * | 2011-06-07 | 2011-11-23 | 杭州优埃基空分设备有限公司 | Novel medical oxygen generator |
-
2011
- 2011-12-05 CN CN2011103977679A patent/CN102494515A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076269A (en) * | 1992-03-12 | 1993-09-15 | 孙克澄 | Air separating method and equipment |
| CN1220386A (en) * | 1997-11-26 | 1999-06-23 | 北京市奥达石化新技术开发中心 | Process for separating high pure nitrogen from air |
| JP2003180838A (en) * | 2001-12-21 | 2003-07-02 | Teijin Ltd | Medical oxygen concentration device |
| JP2004057277A (en) * | 2002-07-25 | 2004-02-26 | Teijin Ltd | Oxygen concentrator for medical use |
| CN102032755A (en) * | 2010-08-03 | 2011-04-27 | 苏州制氧机有限责任公司 | Air separation device |
| CN101886871A (en) * | 2010-08-04 | 2010-11-17 | 四川空分设备(集团)有限责任公司 | Method and device for producing pressure oxygen by air separation |
| CN101929790A (en) * | 2010-08-19 | 2010-12-29 | 苏州制氧机有限责任公司 | High-purity nitrogen equipment |
| CN102249196A (en) * | 2011-06-07 | 2011-11-23 | 杭州优埃基空分设备有限公司 | Novel medical oxygen generator |
Non-Patent Citations (2)
| Title |
|---|
| 李化治: "《制氧技术》", 31 August 2009 * |
| 陈邦国等: "《低温传热与设备》", 30 May 2008 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453314A (en) * | 2013-08-15 | 2013-12-18 | 湖北和远气体股份有限公司 | Method for adding rich oxygen in liquid waste treatment process |
| CN111271597A (en) * | 2019-12-24 | 2020-06-12 | 贵州亚港气体有限公司 | Oxygen filling method |
| CN111928575A (en) * | 2020-08-10 | 2020-11-13 | 广东汇兴空气液化有限公司 | Medical oxygen preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104061757B (en) | A kind of liquid oxygen and liquid nitrogen device for making and method | |
| CN101040674B (en) | Method for producing food level liquid carbon dioxide product | |
| CN105783424B (en) | The air separating method of high-pressure oxygen-enriched gas is produced using cold energy of liquefied natural gas | |
| CN103523751B (en) | Device and method for performing cryogenic separation and purification on carbon monoxide and hydrogen | |
| CN104406364B (en) | The argon of a kind of double tower coupling reclaims purifier apparatus and argon reclaims purification process | |
| EP3719427A1 (en) | Cryogenic distillation method and apparatus for producing pressurized air by means of expander booster in linkage with nitrogen expander for braking | |
| CN202246075U (en) | System for producing food-grade carbon dioxide by utilizing temperature-rising vaporization cold energy of low-temperature ethylene | |
| CN105358926B (en) | Method and apparatus for purifying rich carbonated mixture at low temperature | |
| CN101846436A (en) | Full-liquid air separation device using cold energy of liquefied natural gas (LNG) | |
| CN105466154A (en) | Air separation technique | |
| CN101684983B (en) | Method and apparatus for producing high purity oxygen | |
| CN103292576A (en) | Process and apparatus for the separation of air by cryogenic distillation | |
| CN108645118A (en) | A kind of device and method improving the argon gas rate of recovery | |
| CN204006965U (en) | A kind of liquid oxygen and liquid nitrogen device for making | |
| CN106524666B (en) | Integrated mobile natural gas liquefaction device | |
| CN102788476B (en) | Air separation technology for mainly producing high-purity nitrogen and accessorily producing liquid oxygen by using cryogenic air separation device | |
| CN102494515A (en) | Process for preparing high-pressure medical oxygen | |
| CN103697661B (en) | The device and method of liquefied natural gas and rich hydrogen production is produced from coke-stove gas | |
| CN103080677A (en) | Apparatus and method for the distillation separation of a mixture containing carbon dioxide | |
| CN104185767B (en) | For the method and apparatus producing two strands of partial air flow purified | |
| JP2007147113A (en) | Nitrogen manufacturing method and device | |
| US20120279255A1 (en) | Method and apparatus for compressing and cooling air | |
| CN204718302U (en) | A kind of oxygen enrichment system of efficiency utilization LNG cold energy | |
| CN204787596U (en) | Draw device of helium and argon gas in natural gas | |
| CN204373313U (en) | A kind of argon gas of double tower coupling reclaims purifier apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120613 |