CN1557529A - Pressure swing adsorption oxygen generating unit of telescopic absorption device structure - Google Patents
Pressure swing adsorption oxygen generating unit of telescopic absorption device structure Download PDFInfo
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- CN1557529A CN1557529A CNA2004100395144A CN200410039514A CN1557529A CN 1557529 A CN1557529 A CN 1557529A CN A2004100395144 A CNA2004100395144 A CN A2004100395144A CN 200410039514 A CN200410039514 A CN 200410039514A CN 1557529 A CN1557529 A CN 1557529A
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Abstract
The pressure swing adsorption oxygen making apparatus in sleeve adsorber structure belongs to the field of air separating applied widely in medical health care. The present invention consists of air compressor, filter, adsorber with zeolite molecular sieve, solenoid valve, cooling coiled pipe, T-valve, pressure stabilizing tank, flow rate regulator and other parts. The present invention features the sleeve structure of the adsorber, which is compact in structure, has less influence of wall effect in flowing course, full utilization of molecular sieve and lowered height, and results in reduced compressor power consumption and reduced apparatus weight.
Description
Technical field
The present invention relates to the pressure swing adsorption oxygen making device of a kind of telescopic adsorber structure in the gas separation field.
Background technology
Pressure swing adsorption (the English PSA of abbreviation) is meant and utilizes molecular sieve to have the characteristic of different adsorbances to finish the technology that mist is separated to gas under different pressures.Pressure swing adsorption comes across phase late 1950s the earliest, through the development of decades, is constantly trending towards ripe and perfect.Common pressure swing adsorption oxygen making device is to be made of air cleaner, compressor, cooling device, electromagnetic valve, two parts such as absorber, blowback purging system, vacuum tank and flow-controlling meter that are filled with zeolite molecular sieve.Air is removed impurity by filter, enter the cooling coil cooling after the compressed machine compression, switching by valve then, enter the absorber that one of them is equipped with zeolite molecular sieve, airborne strong absorbed component nitrogen is by molecular sieve adsorption, and weak absorbed component oxygen then passes adsorbent bed and discharges from the outlet of absorber.In the oxygen that absorber flows out, a part enters vacuum tank as product gas, and another part to being in another adsorbent bed blowback of desorption state, promotes the desorption and regeneration of molecular sieve by the blowback purging system.Before the molecular sieve in the adsorbent bed reaches maximal absorptive capacity, by magnetic valve action air is switched to and to carry out adsorption separation process in another absorber, simultaneously to the absorber pressure release desorb of the state of reaching capacity.Like this, carrying out continuously of producing just finished in two absorber alternations.
In present pressure-swing absorption apparatus, absorber all adopts the monotubular structure, and promptly molecular sieve is seated in the inside of absorber in the mode of entity.Air flows into from the absorber bottom, and product oxygen flows out from the top.Because induction air flow ratio is very fast, the absorber internal gas pressure distributes and is inhomogeneous.From the absorber radial cross-section, when reaching the absorption saturation state near near the molecular sieve the axis, because the influence of wall effect, molecular sieve near wall portions does not reach the absorption saturation state as yet, this moment is because the adsorbate forward position arrives the end of adsorbent bed, adsorption process is forced to switch in another absorber and is carried out, otherwise will cause strong absorbed component to penetrate adsorption bed, reduces the concentration of product gas.Therefore the molecular sieve near wall is not utilized all the time fully, and the molecular sieve loadings is required greater than reality in other words.Under the adsorber structure of this single wall form, be positioned near the molecular sieve of wall and then can not be utilized effectively all the time.And because the molecular sieve loadings is too much, caused the internal gas flow resistance of absorber bigger, increased demand, reduced the economy of complete machine the power of compressor.
Summary of the invention
The object of the invention be to solve pressure-swing absorption apparatus in adsorption process in the absorber molecular sieve utilize inadequate problem, and by improving structure, can guarantee under prerequisites such as the oxygen output of original monotubular formula absorber and purity, reduce the consumption of molecular sieve greatly, reduce the volume and weight of oxygenerator, reduce cost.
A kind of pressure swing adsorption oxygen making device of telescopic adsorber structure, this device is made up of elements such as filter 1, compressor 2, cooler 3, magnetic valve 4, absorber 5,6, triple valve 7, vacuum tank 8, flow-controlling meters 9.The internal structure that it is characterized in that absorber 5,6 of the present invention has adopted telescoping structure, comprises drier 10, absorber urceolus 11, inner core 12, molecular sieve 13.Air enters compressor 2 after filtering through filter 1, and gases at high pressure cool off in cooler 3, by the switching of magnetic valve 4, enters between inside and outside two of absorber 5.Enter the interior air of absorber and finish the process of the uniformity of air-flow earlier by the space of absorber upper end, flow downward then, after moisture content are removed in drying agent 10, enter absorption in absorber urceolus 11 and the inner core 12 interbedded molecular sieves 13.Airborne part nitrogen is attracted in the molecular sieve, and air-flow continues passage by absorber inner core 12 bottoms and enters inner core and upwards flow, and continues to finish adsorption separation process in the molecular sieve 13 of inner core, obtains concentration 93% above oxygen at last.Product gas is by the separation of triple valve 7, and a part purges another absorber 6 that is in desorption state as purge gas, after 8 voltage stabilizings of another part process vacuum tank, needs for the user by the flow regulator outflow.Molecular sieve in absorber 5 reaches before the saturated maximum of absorption, by the switching of magnetic valve 4, air is sent into the adsorbing separation of carrying out identical process in the absorber 6.Like this, by the alternation of two absorbers, just finished continuous production.The inner telescoping structure that adopts of absorber makes the absorber internal structure more compact, reduces to avoid the generation of effect, has increased adsorption process, has given full play to the maximum capacity of molecular sieve.
Adopt common adsorber structure, air is flowed into by the absorber bottom, and product oxygen is flowed out by the top, and gas flow rate is bigger, because the influence of wall effect, adsorption process is carried out fully inadequately near near wall.Adopt telescopic absorber compact in design reasonable, can fundamentally overcome this shortcoming.In sum, adopt the pressure-swing absorption apparatus of bushing type absorber to have following advantage: 1, compact conformation, volume is little, in light weight.2, save the molecular sieve consumption greatly, reduce cost.3, the height that can reduce absorber reduces the power of air compressor, structure optimization simultaneously.
The detailed structure of absorber is seen Fig. 2, and wherein the scope of each size is as follows:
Height H
1: 200～800mm; Height H
2: 10～100mm; Height H
3: 10～40mm; Height H
4: 10～100mm; Diameter D
1: 30～300mm; Diameter D
2: 20～40mm; Diameter phi
1: 2～20mm
Description of drawings
Fig. 1 produces the oxygen unit flow chart for telescopic transformation absorption
Among the figure, 1-filter, 2-compressor, 3-cooler, 4-magnetic valve, 5, the 6-absorber, 7-triple valve, 8-vacuum tank, 9-flow-controlling meter
Fig. 2 is the cut-away view of absorber
Among the figure, 10-drier, 11-absorber urceolus, 12-absorber inner core, 13-molecular sieve
The scope of each size that is marked is as follows:
Height H
1: 200～800mm; Height H
2: 10～100mm; Height H
3: 10～40mm; Height H
4: 10～100mm; Diameter D
1: 30～300mm; Diameter D
2: 20～40mm; Diameter phi
1: 2～20mm
Concrete implementing method
Referring to Fig. 1, air enters compressor 2 after filtering through filter 1, and gases at high pressure cool off in cooler 3, by the switching of magnetic valve 4, enters absorber 5 between inside and outside two.Air is finished the process of the uniformity of air-flow earlier by the space of absorber upper end, flow downward then, after moisture content is removed in drying agent 10, enters absorption in the molecular sieve 13 in the interlayer between absorber urceolus 11 and the absorber inner core 12.Airborne part nitrogen is attracted in the molecular sieve, and the passage that air communication is crossed absorber inner sleeve 12 bottoms enters inner core to be continued upwards to flow, and further finishes adsorption separation process in the molecular sieve 13 of inner core, obtains concentration 93% above oxygen at last.Product gas purges another absorber 6 of being in desorption state with a part as purge gas by the separation of triple valve 7, after 8 voltage stabilizings of another part process vacuum tank, needs for the user by the flow-controlling meter outflow.Molecular sieve in absorber 5 reaches before the saturated maximum of absorption, by the switching of magnetic valve 4, air is sent into the adsorbing separation of carrying out identical process in the absorber 6.Like this, by the alternation of two absorbers, just finished continuous production.In the whole continuous circulation of producing oxygen, the effect of bushing type absorber is to set up good environment for adsorption process, and the process that makes is carried out under the uniform and stable situation of pressure, makes the molecular sieve performance adsorption capacity of absorber inside to greatest extent.
Adopt the small-sized pressure swing adsorption oxygen making device of the telescopic absorber that patent of the present invention relates to, under the situation of product yield at 3L/min, its concentration of oxygen can reach more than 93%.
Claims (2)
1, a kind of pressure swing adsorption oxygen making device of telescopic adsorber structure, by filter (1), compressor (2), cooler (3), magnetic valve (4), absorber (5), (6), triple valve (7), vacuum tank (8), flow-controlling meter elements such as (9) are formed, it is characterized in that the absorber among the present invention has adopted telescopic structure, comprises drier 10, absorber urceolus 11, inner core 12, molecular sieve 13; Air enters compressor (2) after filtering through filter (1), and gases at high pressure cool off in cooler (3), by the switching of magnetic valve (4), enters between inside and outside two of the absorber (5); Air is finished the process of the uniformity of air-flow earlier by the space of absorber upper end, flow downward then, and drying agent (10) enters in absorber urceolus (11) and the interbedded molecular sieve of inner core (12) (13) and carries out adsorption separation process after removing moisture content; Airborne part nitrogen is attracted in the molecular sieve (13), the passage that air communication is crossed absorber inner core (12) bottom enters inner core (12), air-flow continues upwards to flow, and further finishes adsorption separation process in the molecular sieve (13) of inner core, obtains concentration 93% above oxygen at last.Product gas purges another absorber (6) of being in desorption state with a part as purge gas by the separation of triple valve (7), after the voltage stabilizing of another part process vacuum tank (8), needs for the user by the flow regulator outflow; Molecular sieve in absorber (5) reaches before the saturated maximum of absorption, by the switching of magnetic valve (4), air is sent into the adsorbing separation of carrying out identical process in the absorber (6).
2, pressure swing adsorption oxygen making device as claimed in claim 1 is characterized in that absorber inside adopted telescopic structure, and the part between the inside and outside sleeve of absorber upper end leaves the space of air feed stream uniformity, and it highly is H
2, be downwards the space of filling drier, highly be height H
3, being the molecular sieve of using for the adsorbing separation air in the space between remaining inner/outer tube, it is φ that the bottom of inner tube wall is uniform-distribution with diameter
1Aperture, air feed flows from entering the usefulness of inner sleeve between the interlayer, and molecular sieve also is housed in the inner core, highly is H in the inner core
4The space play be product oxygen flow out before the effect of buffer gas flow; The scope of each size is as follows in the adsorber structure: height H
1: 200～800mm; Height H
2: 10～100mm; Height H
3: 10～40mm; Height H
4: 10～100mm; Diameter D
1: 30～300mm; Diameter D
2: 20～40mm; Diameter phi
1: 2～20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410039514 CN1245242C (en) | 2004-02-05 | 2004-02-05 | Pressure swing adsorption oxygen generating unit of telescopic absorption device structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410039514 CN1245242C (en) | 2004-02-05 | 2004-02-05 | Pressure swing adsorption oxygen generating unit of telescopic absorption device structure |
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| Publication Number | Publication Date |
|---|---|
| CN1557529A true CN1557529A (en) | 2004-12-29 |
| CN1245242C CN1245242C (en) | 2006-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410039514 Expired - Fee Related CN1245242C (en) | 2004-02-05 | 2004-02-05 | Pressure swing adsorption oxygen generating unit of telescopic absorption device structure |
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| Country | Link |
|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363087C (en) * | 2006-01-19 | 2008-01-23 | 北京科技大学 | Minisize pressure-swinging adsorption oxygen-making device with equalizing two end of adsorption device |
| CN103203121A (en) * | 2013-03-20 | 2013-07-17 | 江苏舒绿康乳胶科技有限公司 | Natural latex dewatering device |
| CN103920366A (en) * | 2014-05-09 | 2014-07-16 | 魏伯卿 | Separation rotary drum in vacuum pressure swing adsorption separator |
| CN104637560A (en) * | 2013-11-11 | 2015-05-20 | 中国辐射防护研究院 | Iodine removing filter device with replaceable carbon |
| CN108862204A (en) * | 2018-09-28 | 2018-11-23 | 北京启顺京腾科技有限责任公司 | Oxygen preparation facilities |
| CN109655372A (en) * | 2018-12-17 | 2019-04-19 | 兰州空间技术物理研究所 | A kind of PdO getter inspiratory capacity test device and method |
-
2004
- 2004-02-05 CN CN 200410039514 patent/CN1245242C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363087C (en) * | 2006-01-19 | 2008-01-23 | 北京科技大学 | Minisize pressure-swinging adsorption oxygen-making device with equalizing two end of adsorption device |
| CN103203121A (en) * | 2013-03-20 | 2013-07-17 | 江苏舒绿康乳胶科技有限公司 | Natural latex dewatering device |
| CN104637560A (en) * | 2013-11-11 | 2015-05-20 | 中国辐射防护研究院 | Iodine removing filter device with replaceable carbon |
| CN103920366A (en) * | 2014-05-09 | 2014-07-16 | 魏伯卿 | Separation rotary drum in vacuum pressure swing adsorption separator |
| CN103920366B (en) * | 2014-05-09 | 2016-02-17 | 魏伯卿 | Separation rotating cylinder in Vacuum Pressure Swing Adsorption separator |
| CN108862204A (en) * | 2018-09-28 | 2018-11-23 | 北京启顺京腾科技有限责任公司 | Oxygen preparation facilities |
| CN109655372A (en) * | 2018-12-17 | 2019-04-19 | 兰州空间技术物理研究所 | A kind of PdO getter inspiratory capacity test device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1245242C (en) | 2006-03-15 |
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Granted publication date: 20060315 |