CN202555142U - P ressure swing adsorption oxygen (PSA) production device for applying two-stage PSA to prepare high purity oxygen - Google Patents
P ressure swing adsorption oxygen (PSA) production device for applying two-stage PSA to prepare high purity oxygen Download PDFInfo
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- CN202555142U CN202555142U CN2012201949301U CN201220194930U CN202555142U CN 202555142 U CN202555142 U CN 202555142U CN 2012201949301 U CN2012201949301 U CN 2012201949301U CN 201220194930 U CN201220194930 U CN 201220194930U CN 202555142 U CN202555142 U CN 202555142U
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Abstract
The utility model discloses a pressure swing adsorption oxygen (PSA) production device for applying two-stage PSA to prepare high purity oxygen, which comprises a primary PSA device, a rough oxygen buffer tank (2), a secondary PSA device and a pure oxygen buffer tank (5), wherein the primary PSA device comprises at least two adsorption towers A (1); an air inlet of each adsorption tower A (1) is communicated with a compressed air inlet; an air outlet of each adsorption tower A (1) is communicated with the rough oxygen buffer tank (2); the secondary PSA device comprises at least two adsorption towers B (3); an air inlet of each adsorption tower B (3) is communicated with the rough oxygen buffer tank (2); and the pure oxygen buffer tank (5) is communicated with each adsorption tower B (3). According to the utility model, the PSA oxygen production device has the benefits that the oxygen of over 99 percent purity can be prepared, and the application field is much wider; the high purity oxygen can be prepared on site, and can be directly put into operation; defects including high cost and high risk caused by the transportation of oxygen cylinders are avoided; and the PSA oxygen production device also has the advantages of convenience in use, fastness in production, low cost and the like.
Description
Technical field
The utility model relates to oxygenerator, particularly relates to a kind of pressure swing adsorption oxygen making device that two-stage PSA produces high-purity oxygen of using.
Background technology
High-purity oxygen can serve as aspects such as hospital patient is breathed, industry smelting.Because pure oxygen expends excessive, the dangerous too high reason of cost in transportation; Often use transformation absorption (PSA) air separation oxygenerator to carry out scene system oxygen now, directly absorbing air is processed pure oxygen and come into operation, but existing transformation absorption (PSA) air separation oxygenerator generally all is the one-level pressure swing adsorption oxygen making device; As shown in Figure 1; Comprise two adsorption tower C (7) and oxygen surge tank (8), air feeds among the adsorption tower C (7), after the nitrogen adsorption agent in the adsorption tower C (7) sponges airborne nitrogen; Promptly obtain the higher oxygen of purity; Then the oxygen that obtains is stored in the oxygen surge tank (8), oxygen surge tank (8) directly is communicated with user side and comes into operation, but because contain 0.93% argon gas in the air; So the oxygen purity that this device obtains generally has only 95%, not meeting some occasions, to need purity be 99% or the requirement of above oxygen.
The utility model content
The purpose of the utility model is to overcome the shortcoming and defect of above-mentioned prior art; A kind of pressure swing adsorption oxygen making device that two-stage PSA produces high-purity oxygen of using is provided; It is too low to have overcome the oxygen purity that existing pressure swing adsorption oxygen making device obtains, the defective that application is narrow relatively.
The purpose of the utility model realizes through following technical proposals: a kind of pressure swing adsorption oxygen making device of using two-stage PSA production high-purity oxygen; Comprise elementary pressure-swing absorption apparatus, crude oxygen surge tank, secondary pressure-swing absorption apparatus and pure oxygen surge tank; Described elementary pressure-swing absorption apparatus comprises at least two adsorption tower A; The air inlet of described adsorption tower A all passes through pipeline and is communicated with the compressed air inlet; Its gas outlet all is communicated to the crude oxygen surge tank, and the secondary pressure-swing absorption apparatus comprises at least two adsorption tower B, and the air inlet of described adsorption tower B all is communicated with the outlet of crude oxygen surge tank; The place, gas outlet of each adsorption tower B all is provided with a pneumatic drain valve, and described pure oxygen surge tank is communicated with through pipeline with each adsorption tower B.
What further, fill in the above-mentioned adsorption tower A is the adsorbent of preferential adsorption nitrogen molecular; What fill in the adsorption tower B is the adsorbent of preferential adsorption oxygen molecule.
Above-mentioned adsorption tower B and the pipeline between the crude oxygen surge tank are provided with pneumatic stopping valve A; Also be provided with pneumatic stopping valve B on the pipeline between adsorption tower B and the pure oxygen surge tank.
The place, gas outlet of above-mentioned pure oxygen surge tank is provided with an oxygen compressor.
The beneficial effect of the utility model is:
(1) the utility model can be produced purity and surpasses 99% oxygen, and application is more extensive;
(2) the utility model can be produced high-purity oxygen in the scene, can directly come into operation, expensive, the high risk shortcoming of having avoided the transports oxygen gas cylinder to bring;
(3) the utility model also have easy to use, produce quick, low cost and other advantages.
Description of drawings
Fig. 1 is the prior art constructions sketch map;
Fig. 2 is the structural representation of the utility model;
Among the figure, 1-adsorption tower A, 2-crude oxygen surge tank, 3-adsorption tower B, the pneumatic drain valve of 4-, 5-pure oxygen surge tank, 6-oxygen compressor, 7-adsorption tower C, 8-oxygen surge tank, 9-pneumatic stopping valve A, 10-pneumatic stopping valve B.
The specific embodiment
Below in conjunction with embodiment the utility model is done further to specify, but the structure of the utility model is not limited only to following examples:
[embodiment]
As shown in Figure 2; A kind of pressure swing adsorption oxygen making device of using two-stage PSA production high-purity oxygen; Comprise elementary pressure-swing absorption apparatus, crude oxygen surge tank 2, secondary pressure-swing absorption apparatus and pure oxygen surge tank 5, described elementary pressure-swing absorption apparatus comprises two adsorption tower A1, and the air inlet of described adsorption tower A1 all passes through pipeline and is communicated with the compressed air inlet; Its gas outlet all is communicated to crude oxygen surge tank 2; The secondary pressure-swing absorption apparatus comprises two adsorption tower B3, and the air inlet of described adsorption tower B3 all is communicated with the outlet of crude oxygen surge tank 2, and its gas outlet all is connected to exhaust emission pipe and is used for discharging waste gas; The place, gas outlet of adsorption tower B3 all is provided with a pneumatic drain valve 4, and described pure oxygen surge tank 5 is communicated with through pipeline with adsorption tower B3.
What further, fill in the above-mentioned adsorption tower A1 is the adsorbent of preferential adsorption nitrogen molecular; What fill in the adsorption tower B3 is the adsorbent of preferential adsorption oxygen molecule.
Above-mentioned adsorption tower B3 and the pipeline between the crude oxygen surge tank 2 are provided with pneumatic stopping valve A9; Also be provided with pneumatic stopping valve B10 on the pipeline between adsorption tower B3 and the pure oxygen surge tank 5, the pure oxygen surge tank 5 of present embodiment is communicated to the inside of adsorption tower B3 from the air inlet of adsorption tower B3.
The adsorption tower B3 of present embodiment is divided into two duties: adsorbed state and parse state.When adsorption tower B3 is adsorbed state, the adsorbents adsorb oxygen that it is inner; When adsorption tower B3 is parse state, the adsorbent release of oxygen that it is inner.
The place, gas outlet of above-mentioned pure oxygen surge tank 5 is provided with an oxygen compressor 6; The outlet of oxygen compressor 6 connects oxygen cylinder or directly connects user side; Because the purity oxygen of producing is in low-pressure state; After needing oxygen compressor 6 compressions, reach and to carry, perhaps can fill the pressure of oxygen cylinder.
Crude oxygen surge tank 2 in the present embodiment and pure oxygen surge tank 5 are the buffer containers that are used to stabilize pressure oscillation.
The operation principle of the utility model is: compressed air feeds in the elementary pressure-swing absorption apparatus, absorb nitrogen through adsorption tower A1 after, obtain low-purity oxygen and be stored in the crude oxygen surge tank 2 and cushion; Low-purity oxygen in the crude oxygen surge tank 2 feeds the secondary pressure-swing absorption apparatus through pipeline again, becomes high-purity oxygen after the processing of low-purity oxygen through the secondary pressure-swing absorption apparatus; High-purity oxygen through being transported to user side after oxygen compressor 6 compressions, perhaps fills oxygen cylinder after getting into pure oxygen surge tank 5 bufferings through pipeline.
During the work of secondary pressure-swing absorption apparatus; Each adsorption tower B3 has two job steps: 1 adsorption step: open the pneumatic stopping valve A9 between adsorption tower B3 and the crude oxygen surge tank 2; And close the pneumatic stopping valve B10 between this adsorption tower B3 and the pure oxygen surge tank 5; Open the pneumatic drain valve 4 at place, this adsorption tower B3 gas outlet then, it is adsorbed state that this adsorption tower B3 is set, and low-purity oxygen feeds in this adsorption tower B3; Oxygen is adsorbed, and remaining assorted gas is discharged into the outside from exhaust piping; 2 release steps: behind the adsorption tower B3 adsorption of oxygen certain hour; Close between itself and the crude oxygen surge tank 2 pneumatic stopping valve A9 with and the pneumatic drain valve 4 at place, gas outlet; Open the pneumatic stopping valve B10 between this adsorption tower B3 and the pure oxygen surge tank 5, adsorption tower B3 is set to parse state, promptly begins release of oxygen; Be high-purity oxygen at this moment, get into pure oxygen surge tank 5 through pipeline.When certain adsorption tower B3 was in adsorption step in the secondary pressure-swing absorption apparatus, another adsorption tower B3 just was in release steps, and behind the certain hour, both job steps are switched again, can guarantee to continue system oxygen like this, and oxygen generation efficiency is than higher.
Adsorption tower B3 in the secondary PSA pressure-swing absorption apparatus of present embodiment can use different types of adsorbent to fill formation, to obtain different oxygen purities.
Claims (6)
1. use the pressure swing adsorption oxygen making device that two-stage PSA produces high-purity oxygen for one kind; It is characterized in that; Comprise elementary pressure-swing absorption apparatus, crude oxygen surge tank (2), secondary pressure-swing absorption apparatus and pure oxygen surge tank (5); Described elementary pressure-swing absorption apparatus comprises at least two adsorption tower A (1), and the air inlet of described adsorption tower A (1) all passes through pipeline and is communicated with the compressed air inlet, and its gas outlet all is communicated to crude oxygen surge tank (2); The secondary pressure-swing absorption apparatus comprises at least two adsorption tower B (3); The air inlet of described adsorption tower B (3) all is communicated with the outlet of crude oxygen surge tank (2), and the place, gas outlet of each adsorption tower B (3) all is provided with a pneumatic drain valve (4), and described pure oxygen surge tank (5) is communicated with through pipeline with each adsorption tower B (3).
2. a kind of pressure swing adsorption oxygen making device that two-stage PSA produces high-purity oxygen of using according to claim 1 is characterized in that, is filled with the adsorbent of preferential adsorption nitrogen molecular in the described adsorption tower A (1).
3. a kind of pressure swing adsorption oxygen making device that two-stage PSA produces high-purity oxygen of using according to claim 1 is characterized in that, is filled with the adsorbent of preferential adsorption oxygen molecule in the described adsorption tower B (3).
4. a kind of pressure swing adsorption oxygen making device that two-stage PSA produces high-purity oxygen of using according to claim 1 is characterized in that the pipeline between described adsorption tower B (3) and the crude oxygen surge tank (2) is provided with pneumatic stopping valve A (9).
5. a kind of pressure swing adsorption oxygen making device that two-stage PSA produces high-purity oxygen of using according to claim 1 is characterized in that the pipeline between described adsorption tower B (3) and the pure oxygen surge tank (5) is provided with pneumatic stopping valve B (10).
6. a kind of pressure swing adsorption oxygen making device that two-stage PSA produces high-purity oxygen of using according to claim 1 is characterized in that the place, gas outlet of described pure oxygen surge tank (5) is provided with an oxygen compressor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201949301U CN202555142U (en) | 2012-05-03 | 2012-05-03 | P ressure swing adsorption oxygen (PSA) production device for applying two-stage PSA to prepare high purity oxygen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012201949301U CN202555142U (en) | 2012-05-03 | 2012-05-03 | P ressure swing adsorption oxygen (PSA) production device for applying two-stage PSA to prepare high purity oxygen |
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| CN202555142U true CN202555142U (en) | 2012-11-28 |
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| CN2012201949301U Expired - Fee Related CN202555142U (en) | 2012-05-03 | 2012-05-03 | P ressure swing adsorption oxygen (PSA) production device for applying two-stage PSA to prepare high purity oxygen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115028143A (en) * | 2021-03-07 | 2022-09-09 | 上海技典工业产品设计有限公司 | Pressure swing adsorption process and method capable of purifying oxygen-enriched air with low oxygen concentration |
| CN117899610A (en) * | 2023-12-31 | 2024-04-19 | 连云港欧亚气体有限公司 | Pressure swing adsorption oxygen production and oxygen purification integrated equipment and method thereof |
-
2012
- 2012-05-03 CN CN2012201949301U patent/CN202555142U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115028143A (en) * | 2021-03-07 | 2022-09-09 | 上海技典工业产品设计有限公司 | Pressure swing adsorption process and method capable of purifying oxygen-enriched air with low oxygen concentration |
| CN115028143B (en) * | 2021-03-07 | 2024-02-06 | 上海技典工业产品设计有限公司 | Pressure swing adsorption process and method capable of purifying oxygen-enriched air with low oxygen concentration |
| CN117899610A (en) * | 2023-12-31 | 2024-04-19 | 连云港欧亚气体有限公司 | Pressure swing adsorption oxygen production and oxygen purification integrated equipment and method thereof |
| CN117899610B (en) * | 2023-12-31 | 2024-07-23 | 连云港欧亚气体有限公司 | Pressure swing adsorption oxygen production and oxygen purification integrated equipment and method thereof |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150503 |
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| EXPY | Termination of patent right or utility model |