CN1045706A - Oxygen supply system with nitrogen-permeable-oxygen-enriching membrane - Google Patents
Oxygen supply system with nitrogen-permeable-oxygen-enriching membrane Download PDFInfo
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- CN1045706A CN1045706A CN 89101660 CN89101660A CN1045706A CN 1045706 A CN1045706 A CN 1045706A CN 89101660 CN89101660 CN 89101660 CN 89101660 A CN89101660 A CN 89101660A CN 1045706 A CN1045706 A CN 1045706A
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- oxygen
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- enriching
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Abstract
Oxygen supply system with nitrogen-permeable-oxygen-enriching membrane of the present invention, its principle are that the selection function with film sees through and collecting oxygen nitrogen.Because the nitrogen-permeable-oxygen-enriching film is quite thin, the aperture is bigger, selects effectively, and this has just reduced the resistance of air flowing, has saved the energy, has simplified the utility appliance of oxygen system greatly.Native system can be widely used in steelmaking oxygen blowing, boiler auxiliary combustion, and biological fermentation, oil engine is combustion-supporting, aspects such as the artificial respiration of health-care hospital and pure oxygen preparation.
Description
The invention belongs to gas separation technique field.
The ratio of oxygen and nitrogen is respectively 21% and 79% in the air.The principle of embrane method collecting oxygen is to stop nitrogen with film at present, sees through oxygen.The shape of film can be made into hollow fiber or tabular.Mould material mostly is silicone resin.Accumulation rate to oxygen in the air reaches 30%-40%.Because mould material is thick, resistance is very big, and the pressure of air is had relatively high expectations, and therefore wastes energy, and makes equipment become heavy, the widely-used property that this limited oxygen enrichment ratio and gas production rate have limited film oxygen enriching.
Film oxygen enriching of the present invention adopts as thin as a wafer, wide-aperture film, and permission nitrogen sees through film and holds back oxygen.The separation efficiency height because the resistance of film is little only needs the pressure of 0.01-1 kg/cm, can avoid like this using air compressor machine and uses ordinary blower or induced draft fan or fan or vacuum fan instead and make the motivating force device.
The manufacture method of film to the effect that of the present invention and the configuration of oxygen system.
The manufacture method of film is to select a kind of commercially available porous supporting body, and it generally is to use cellulose acetate, soluble cotton, methylcellulose gum, ethyl cellulose, polysulfones, polyester, polyvinyl alcohol, Polyurethane, polymeric amide, aromatic polyamides, macromolecular materials such as polyvinylidene chloride are made.The thickness of support film is the 5-1000 micron, and the aperture of film is the 0.01-25 micron.But the shape tabular or the hollow fiber-shaped of film, the external diameter of hollow fiber are the 10-5000 micron.Above-mentioned tabular film is made into the board-like assembly or the rolling assembly of single or multiple lift; Above-mentioned hollow fiber-shaped membrane is made into kapillary or hollow fiber module, and the effective film area of each assembly is 0.01-500 square metre.Above-mentioned porous supporting body assembly all can be obtained by commercially available easily.
Then, adopt pickling process or power forming method on the surface of support film assembly, to make one deck nitrogen-permeable-oxygen-enriching film of the present invention.With in the pump input module, mould material is deposited in the micropore of supporter mould material.The composition of mould material is the multipolymer of polyoxyethylene glycol and vinyl acetate, and the mole ratio of the two is 0.001-0.99, and concentration is the 1-5000 mg/litre.The pressure of pump is no more than 30 kg/cm.Service temperature is 2-90 ℃, and the time length is 1-180 minute.The flow velocity of liquid film forming material is the 0.1-5 meter per second in the assembly.Above-mentioned condition is the condition that power forms the legal system film.Then without pump, pressure and flow velocity are 0 during dipping legal system film.Said process is squeezed into assembly with pump with the acetone of 5-90% and the aqueous solution of 1-5% sodium lauryl sulphate, unnecessary mould material 30-80 minute of eccysis after finishing.At last, this assembly is put into vacuum unit, be dried to water ratio and be till the 0-5%.
The configuration of oxygen system can be indicated in accompanying drawing 1.Air supply device (1) generally is the gas blower of 0.01-1 kg/cm with blast, induced draft fan, exhaust fan, the air compressor pump of low pressure or vacuum fan.Air filter unit (2) can require according to the difference to the air purposes to select, and is used for dedusting, removes moisture, and the stability of the interior film properties of protective membrane assembly.Membrane module (3) can be one, also can be together in series with a plurality of head and the tail.Flow process is long more, and it is many more that nitrogen sees through film, and remaining concentration of oxygen is high more.Whenever by an assembly, concentration of oxygen can rise to 30-35% by 21%, and gas production rate is linear with pressure.If make medical treatment and pure oxygen usefulness, also need add gas degerming membrane module (4) on stream, this mycoderm that removes can be obtained by commercially available, and its aperture is 0.45 micron.The process of this oxygen system can be summarized as: air feed → dust removal by filtration, remove moisture content → membrane sepn, and allow nitrogen see through film and stop down the oxygen degerming again of oxygen → enrichment.
Embodiments of the invention are a kind of therapeutic medical oxygen-enriching devices.
Get one of commercially available Cellulose diacetate planar film, the aperture of film is 3 microns, and thickness is 0.1 millimeter, and the external diameter of circular membrane is 20 centimetres.With film with film working method system nitrogen-permeable-oxygen-enriching film of the present invention.With the film made by the accompanying drawing 1 monolithic membrane pressurized vessel (3) of packing into.Airing system is commercially available fish jar air feed pump (1), about 0.045 kg/cm of the pressure of air feed pump (1).The medium of strainer (2) was coated with the steel wire screen of dimethyl siloxane for the surface.System is equipped with degerming device (4) at last, and it is 10 centimetres that a slice diameter is arranged in it, and the aperture is 0.5 micron a cellulose acetate film.Starting air feed pump, can to obtain concentration from the back side of removing mycoderm be 35% oxygen.At working pressure is 0.03 kg/cm, and gas production rate is 100 milliliters/second, can be for the usefulness of people's breathing.
Oxygen supply system with nitrogen-permeable-oxygen-enriching membrane of the present invention, because diaphragm is thin, resistance is little, selective height is energy savings greatly, simplified apparatus. Can be widely used in steelmaking oxygen blowing, boiler auxiliary combustion, biofermentation, internal combustion engine combustion supporting, the aspects such as the artificial respiration of health-care hospital and pure oxygen preparation.
Claims (4)
1, a kind of oxygen supply system with nitrogen-permeable-oxygen-enriching membrane is characterized in that with the air being unstripped gas, makes ammonia see through film and the membrane process of collecting oxygen,
2, by the described oxygen system of claim 1, the material that it is characterized in that making this film is the multipolymer of polyoxyethylene glycol and vinyl acetate, the mole ratio of the two is 0.001-0.99, available pickling process or power form the legal system film, the concentration of preparation liquid is the 1-5000 micrograms per litre, and working pressure is the 0-30 kg/cm, and temperature is 2-90 ℃, water ratio is 0-5% after the film drying
3, by the described oxygen system of claim 1, it is characterized in that the porous supporting body material of film is a cellulose acetate, methylcellulose gum, ethyl cellulose, polysulfones, polyester, polyvinyl alcohol, Polyurethane, polymeric amide, aromatic polyamides, polyvinylidene chloride etc.Their thickness is the 5-1000 micron, and the aperture is the 0.01-25 micron, and the supporter shape is tabular or hollow fiber,
4, by the described oxygen system of claim 1, comprised by gas blower, or induced draft fan, or the air air feed equipment of vacuum fan composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89101660 CN1045706A (en) | 1989-03-18 | 1989-03-18 | Oxygen supply system with nitrogen-permeable-oxygen-enriching membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89101660 CN1045706A (en) | 1989-03-18 | 1989-03-18 | Oxygen supply system with nitrogen-permeable-oxygen-enriching membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1045706A true CN1045706A (en) | 1990-10-03 |
Family
ID=4854375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89101660 Pending CN1045706A (en) | 1989-03-18 | 1989-03-18 | Oxygen supply system with nitrogen-permeable-oxygen-enriching membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1045706A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033949C (en) * | 1991-11-07 | 1997-02-05 | 方虎堂 | Oxygen-rich air conditioning device |
| CN100402827C (en) * | 2003-06-05 | 2008-07-16 | 奥迪股份公司 | Method for operating an internal combustion engine of a vehicle, especially a motor vehicle, and device for implementing said method |
| WO2009129739A1 (en) * | 2008-04-22 | 2009-10-29 | 深圳市好家庭实业有限公司 | Oxygen enrichment device and system |
| CN107339177A (en) * | 2017-09-03 | 2017-11-10 | 淄博长宝新材料股份有限公司 | A kind of steamer pure oxygen burning high-performance device |
-
1989
- 1989-03-18 CN CN 89101660 patent/CN1045706A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033949C (en) * | 1991-11-07 | 1997-02-05 | 方虎堂 | Oxygen-rich air conditioning device |
| CN100402827C (en) * | 2003-06-05 | 2008-07-16 | 奥迪股份公司 | Method for operating an internal combustion engine of a vehicle, especially a motor vehicle, and device for implementing said method |
| WO2009129739A1 (en) * | 2008-04-22 | 2009-10-29 | 深圳市好家庭实业有限公司 | Oxygen enrichment device and system |
| CN107339177A (en) * | 2017-09-03 | 2017-11-10 | 淄博长宝新材料股份有限公司 | A kind of steamer pure oxygen burning high-performance device |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |