CN1346690A - Small pressure swing adsorption oxygen producing apparatus with compact structure adsorptive tower - Google Patents
Small pressure swing adsorption oxygen producing apparatus with compact structure adsorptive tower Download PDFInfo
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- CN1346690A CN1346690A CN 01141964 CN01141964A CN1346690A CN 1346690 A CN1346690 A CN 1346690A CN 01141964 CN01141964 CN 01141964 CN 01141964 A CN01141964 A CN 01141964A CN 1346690 A CN1346690 A CN 1346690A
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- tower
- sheet
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- oxygen
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- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
A small air-separating oxygen producing device with compact adsorptive tower is disclosed. Its adsorptive tower is composed of one or parallel more plate-type basic units (tower plates). Said tower plates can be mutually crossed and closed linked. Its advantages are small size, light weight and low energy consumption.
Description
Technical field
The present invention relates to a kind of small-sized separating oxygen from air by means of pressure swing adsorption device in gas delivery and purification and the oxygenerating technology.
Background technology
Transformation absorption (Pressure Swing Adsorption, be called for short PSA) be that gas is adsorbed under elevated pressures, and under lower pressure desorption, because of the equilibrium adsorption capacity difference of each component gas on sorbent material, or realize the cyclical operation process of gas delivery because of the kinetics of adsorption difference of component.The plural adsorption tower of the general employing of the PSA technology of practical application.The miniaturization of pressure-swing absorption apparatus is vital for some special requirement.If replace air with oxygen enrichment, the power of PEMFC (Proton Exchange Membrane Fuel Cells) vehicle is significantly improved.For common diesel-engine road vehicle, oxygen enrichment also can significantly improve the efficiency of combustion of fuel, reduces exhaust emission.This just need be suitable for the small-sized making oxygen by air separation device of configuration on vehicle.Small-sized making oxygen by air separation device seems for some Military Application and is even more important.Existing patented technology makes the size of adsorption tower and the scale of whole pressure-swing absorption apparatus reduce greatly by shortening the time in an operational cycle.But adsorption towers at different levels are still independence and are separated from each other, and the compactedness of whole pressure-swing absorption apparatus is restricted.
Another problem that pressure swing adsorption technique exists, be after operation reaches stable state, because the adsorption desorption heat effect causes along the temperature distributing disproportionation of adsorption tower axis direction even, promptly inconsistent to the temperature on the different tower sections of outlet at inlet from tower, cause the capacity (productive rate) of adsorption bed to descend.For addressing this problem, once adopted different adsorption bed is heated or cooling provision, cause the raising of running cost.
Summary of the invention
At the problems referred to above that exist in the pressure swing adsorption technique and miniaturization demand, the object of the present invention is to provide a kind of is the small-sized making oxygen by air separation device of core with the compact form adsorption tower.That this device takes up space is little, in light weight, energy consumption is low, is used with fuel cell or diesel engine automobile, can significantly improve energy efficiency and engine power.
The present invention is realized by following proposal.By the small-sized making oxygen by air separation device that adsorption tower, gas-holder, sourdine, compressor and magnetic valve are formed, it is characterized in that the sheet structure of adsorption tower and the close fit mode that the multitower sheet coincides.Filling purifying air sorbent material and system oxygen absorbent in each tower sheet.The tower sheet respectively has a gas import/export in both sides up and down.Each adsorption tower can comprise the tower sheet of a plurality of parallel connections, and the tower sheet of each tower can alternately intert and arrange, and is tightly connected between the tower sheet.
Above-mentioned tower sheet front shape is circular, rectangle or trapezoidal.
The invention has the advantages that: multistage adsorption tower is reached arrange the most closely, the space minimum that occupies, thus make the occupied space minimum of whole PSA system (for example making oxygen by air separation machine).The multistage adsorption tower of 2, closely arranging has been realized the complementation of heat of adsorption and desorption heat, if every tower is multi-disc parallel connection and cross arrangement, then efficiency of utilization disadvantageous effect higher or heat effect is littler.Consequently significantly improved the throughput of adsorption bed.3, making oxygen is simple, and may command purges, the yield height of oxygen.
Description of drawings
Accompanying drawing 1 is compact form adsorption tower assembling synoptic diagram.
Accompanying drawing 2 is the small pressure swing adsorption oxygen producing apparatus with compact structure adsorptive tower synoptic diagram.
1 is compressor among the figure, and 2 is surge tank, and 3 is adsorption tower, and 4 is the oxygen enrichment jar, and 5 is sourdine, and 6-19 is a magnetic valve.
Embodiment
Accompanying drawing 2 provides a making oxygen by air separation flow process.This flow process comprises eight tower sheets, and four-column process flow is formed in per two tower sheets parallel connection (referring to accompanying drawing 1).Filling comprises the compound adsorbent that purifying air is formed with sorbent material and the special-purpose sorbent material of system oxygen in the tower sheet.Other integral part comprises a mini air compressor, a surge tank, an oxygen enrichment jar, a sourdine and 14 magnetic valves.Air enters each adsorption tower according to this at the bottom of tower, enter the oxygen enrichment jar from each column overhead successively as the oxygen enrichment (concentration＞90%) of product gas.In four towers, one group in per two towers are all pressed at cat head.After all pressing, to the reverse emptying of atmosphere, use the reverse purging of oxygen rich air then for tower that must step-down.Purge time is controlled at the oxygen enrichment peak and does not shift out adsorption bed; For the tower that must boost, by the reverse adsorptive pressure that is pressurized to of oxygen rich air.The timing distribution of four towers is as shown in table 1 in an operational cycle, and this sequential has guaranteed the humorous time property of valve event.
Table 1
| Absorption | ↓ all press | Emptying | Purge | Wait for | ↑ all press | Pressurising | |
| Purge | Wait for | ↑ all press | Pressurising | Absorption | ↓ all press | Emptying | |
| ↑ all press | Pressurising | Absorption | ↓ all press | Emptying | Purge | Wait for | |
| ↓ all press | Emptying | Purge | Wait for | ↑ all press | 2 pressurisings | Absorption | |
Claims (2)
1. small pressure swing adsorption oxygen producing apparatus with compact structure adsorptive tower, it is made up of air compressor machine, adsorption tower, gas-holder, sourdine and magnetic valve, it is characterized in that: adsorption tower is made up of the tower sheet of the sheet structure of filling purifying air sorbent material and system oxygen absorbent, each adsorption tower can be made up of the tower sheet of one or more parallel connections, can intert the tower sheet of another adsorption tower therebetween, all tower sheets are repeatedly put, and are tightly connected between the tower sheet, and the both sides up and down of each tower sheet are provided with the import and export of gas.
2. by the described making oxygen by air separation device of claim 1, it is characterized in that: the front shape of absorption Tata sheet is circle, rectangle, trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01141964 CN1127999C (en) | 2001-09-26 | 2001-09-26 | Small pressure swing adsorption oxygen producing apparatus with compact structure adsorptive tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01141964 CN1127999C (en) | 2001-09-26 | 2001-09-26 | Small pressure swing adsorption oxygen producing apparatus with compact structure adsorptive tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1346690A true CN1346690A (en) | 2002-05-01 |
| CN1127999C CN1127999C (en) | 2003-11-19 |
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ID=4676517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01141964 Expired - Fee Related CN1127999C (en) | 2001-09-26 | 2001-09-26 | Small pressure swing adsorption oxygen producing apparatus with compact structure adsorptive tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1127999C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727729A (en) * | 2016-03-21 | 2016-07-06 | 华中科技大学 | Continuous circulation carbon dioxide capture system on basis of in-situ adsorption/desorption modes |
-
2001
- 2001-09-26 CN CN 01141964 patent/CN1127999C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727729A (en) * | 2016-03-21 | 2016-07-06 | 华中科技大学 | Continuous circulation carbon dioxide capture system on basis of in-situ adsorption/desorption modes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1127999C (en) | 2003-11-19 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031119 Termination date: 20091026 |