CN107469565A - A kind of repeatedly blowback and the swing adsorption oxygen generating system and its operating method alternately pressed - Google Patents
A kind of repeatedly blowback and the swing adsorption oxygen generating system and its operating method alternately pressed Download PDFInfo
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- CN107469565A CN107469565A CN201710561936.5A CN201710561936A CN107469565A CN 107469565 A CN107469565 A CN 107469565A CN 201710561936 A CN201710561936 A CN 201710561936A CN 107469565 A CN107469565 A CN 107469565A
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- adsorption tower
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
- B01D53/053—Pressure swing adsorption with storage or buffer vessel
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/12—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/102—Nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40043—Purging
- B01D2259/4005—Nature of purge gas
- B01D2259/40052—Recycled product or process gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/402—Further details for adsorption processes and devices using two beds
Abstract
A kind of repeatedly blowback and the swing adsorption oxygen generating system and its operating method alternately pressed, i.e., just in the adsorption tower experience moment first time big flow blowback cleaning of depressurization desorption, the repeatedly blowback cleaning such as low discharge blowback cleaning and second of moment big flow blowback cleaning；The adsorption tower adsorbed and the adsorption tower for completing desorption are completed by staggeredly pressing for the first time, pressurize, first time product oxygen pressurising, is staggeredly pressed for the second time, the multiple alternately pressure equalizing of second of product oxygen pressurising.Multiple blowback cleaning makes adsorption tower desorption more thorough, and effectively reduces the product gas needed for cleaning.It and repeatedly alternately pressure has fully reclaimed useful constituent and mechanical energy in adsorption tower, and can effectively prevent that adsorbent layer is pierced in advance, oxygen recovery rate can be significantly improved, reduce oxygen energy consumption processed.
Description
Technical field
The invention belongs to gas separation technique field, and in particular to a kind of repeatedly blowback and the pressure-variable adsorption system alternately pressed
Oxygen system.
Background technology
Pressure-variable adsorption（pressure swing adsorption, PSA）It is a kind of important isolation technics, in gas
The fields such as separation, purification obtain extensive use, especially in terms of the air-separating oxygen-making nitrogen of middle and small scale.Based on PSA principles
Oxygenerator is in front yard health care, hospital's oxygen therapy and the fields such as plateau is oxygen-enriched due to the advantages that production oxygen concentration is high, automaticity is high
Obtain more application.And in these application fields oxygen scale is smaller, with the diminution with oxygen scale, oxygen generating plant efficiency
Decline, energy consumption is very high.
New oxygen absorbent exploitation processed and process optimization are the main paths for improving PSA oxygenerator performances.New
In the case of type oxygen absorbent exploitation more difficulty, process optimization is then particularly important.Blowback and pressure step are
Two important circulation steps in PSA oxygen preparations, desorb adsorption tower by blowback cleaning more thorough, be advantageous to obtain highly concentrated
Product gas, but the method that traditional blowback process uses the continuous blowback of product oxygen are spent, have lost more product oxygen, oxygen returns
Yield is relatively low.And mechanical energy and component useful in adsorbent bed are received by pushing back, be advantageous to obtain preferably oxygen performance processed.
Domestic patent CN 101564636A propose blowback stage intermittent interruption purgative gas during omnibus control system
Method, improves oxygen recovery rate, but due to backflowing gas amount in cleaning process and pressure is low, it is difficult to quickly complete cleaning solution
Inhale.During domestic patent CN103058144.A is proposed in the tower for utilizing two surge tanks recovery to complete to adsorb in PSA oxygen preparations
Between gas, be in turn used for cleaning and pressurising, improve oxygen recovery rate, but the oxygen concentration of the purgative gas is relatively low, it is difficult to obtain
Obtain the product oxygen of high concentration.Domestic patent CN104340961.A proposes the abundant step of seven valve two for reclaiming tail gas, and equipotentiality is not equal
The PSA making oxygens of pressure, but in order to prevent adsorption tower from penetrating in advance, equipotentiality does not press latter two absorption tower pressure interior force of completion to two steps
And it is unequal, the useful constituent of recovery is less, and equipment energy consumption is still higher.United States Patent (USP) US 8128734 proposes PSA oxygen
During complete first reverse press of adsorption tower of desorption and carry out the method for product oxygen pressurising again to improve oxygen performance processed, but its is equal
Pressure number is few, and the raising of oxygen recovery rate is also limited.The method that domestic patent CN101531342.A proposes five tower PSA oxygen,
By between adsorption tower, repeatedly pressure fully reclaims mechanical energy and useful constituent in adsorbent bed, but the shortcomings that flow complexity be present.It is beautiful
The method that state patent US6454838 proposes the six tower PSA oxygen pressed with four outlet sides, it is effectively improved oxygen and returns
Yield, but the equal pressure-volume in outlet side easily makes product gas impure in High Pressure Absorption tower enter low pressure adsorbent top of tower, deposits simultaneously
The flow complexity the shortcomings that, and need the parts such as many valves.
The content of the invention
Present invention aims to overcome that the shortcomings that prior art and deficiency provide a kind of repeatedly blowback and the change alternately pressed
Adsorption oxygen-preparation system is pressed, and the operating method of the system is provided.
Existing typical swing adsorption oxygen generating system, as shown in figure 1, adsorption tower is built-in to fill and present oxygen absorbent, complete absorption
Adsorption tower and complete the adsorption tower of desorption and press by outlet side and staggeredly to press two with outlet side and inlet end and press through
Journey, and in order to prevent adsorption tower from penetrating in advance, the outlet side between adsorption tower is pressed staggeredly presses with outlet side and inlet end
Time is very short, and the useful constituent of recovery is limited, and oxygen recovery rate is low, and oxygen energy consumption processed is higher.
The present invention proposes a kind of repeatedly blowback and the swing adsorption oxygen generating system alternately pressed, as shown in Fig. 2 being to existing
The improvement of PSA oxygen generation systems, i.e., each adsorption tower experience air inlet absorption, is staggeredly pressed for the first time（Reduce pressure）, pressurize, second
It is secondary staggeredly to press（Reduce pressure）, depressurization desorption, moment first time big flow blowback cleaning, long-time low discharge blowback cleaning,
Second of moment big flow blowback is cleaned, and is staggeredly pressed for the first time（Raise pressure）, first time product oxygen pressurising, second of friendship
Mistake is pressed（Raise pressure）, the multiple blowback of second of product oxygen pressurising and alternately pressure equalizing are anti-using moment big flow
Blowing-out washes the mode being combined with long-time low discharge blowback cleaning, makes adsorption tower desorption more thorough, while can reduce purgative gas
Loss.And the pressurising of product oxygen can effectively prevent that adsorbent layer is pierced in advance, be advantageous to carry out repeatedly staggeredly pressure equalizing,
Useful constituent after the completion of the abundant recovery absorption of pressure of repeatedly interlocking in adsorption tower, can significantly improve oxygen recovery rate, oxygen processed
Energy consumption substantially reduces.
A kind of repeatedly blowback and the swing adsorption oxygen generating system alternately pressed, mainly including air compressor (1), cooling driers
（2）, air cushioning tank P1, air inlet pipeline（3）, filling oxygen absorbent processed the first adsorption tower A and the second adsorption tower B, first hand over
Wrong balance pipe road（8）, second staggeredly balance pipe road（9）, the first blowback equalizer valve（12）, the second blowback equalizer valve（13）, product
Oxygen backflush pipeline（17）, oxygen output pipe road（20）, oxygen surge tank P2, product oxygen backflush pressurising pipeline（21）, its feature exists
In：
First staggeredly balance pipe road（8）Pass through the second equalizing valve（11）By the first adsorption tower A inlet end and the second adsorption tower B
Outlet side is connected；Second staggeredly balance pipe road（9）Pass through the first equalizing valve（10）First adsorption tower A outlet side and second are inhaled
Attached tower B inlet end is connected；
Product oxygen backflush pressurising pipeline（21）Pass through check valve（14）With the first blowback equalizer valve（12）By the first adsorption tower A's
Outlet side is connected, for the first adsorption tower A product oxygen pressurisings, product oxygen backflush pressurising pipeline（21）Pass through check valve
（14）, the first blowback and equalizer valve（12）With the first desorption valve（6）For being cleaned to the first adsorption tower A moment big flows blowback；
Product oxygen backflush pressurising pipeline（21）Pass through check valve（14）With the second blowback equalizer valve（13）By the second adsorption tower B outlet
Termination is logical, for the second adsorption tower B product oxygen pressurisings, product oxygen backflush pressurising pipeline（21）Pass through check valve（14）、
Second blowback equalizer valve（13）With the second desorption valve（7）For being cleaned to the second adsorption tower B moment big flows blowback；Product oxygen
Blowback pipeline（17）Pass through blowback control valve（15）With the 3rd back-flushing valve（16）By going out for the first adsorption tower A and the second adsorption tower B
Gas termination is logical, and adsorption tower is cleaned for low discharge blowback.
First adsorption tower A of filling oxygen absorbent processed passes through air inlet pipeline（3）With open the first intake valve（4）Start air inlet
Absorption, and the second adsorption tower B is by opening the second desorption valve（7）Depressurization desorption.After in the second adsorption tower B depressurization desorptions
Phase, open the second blowback equalizer valve（13）Pass through product oxygen backflush pressurising pipeline（21）Second adsorption tower B is carried out for the first time
Moment big flow product oxygen backflush is cleaned, then quick closedown the second blowback equalizer valve（13）, open the 3rd back-flushing valve（16）
Low discharge blowback cleaning is carried out to the second adsorption tower B, closes the 3rd back-flushing valve afterwards（16）, the second blowback pressurising is opened again
Valve（13）Pass through product oxygen backflush pressurising pipeline（21）It is anti-that second of moment big flow product oxygen is carried out to the second adsorption tower B
Blowing-out is washed, and closes the second blowback equalizer valve afterwards（13）, the first intake valve（4）With the second desorption valve（7）, now the second adsorption tower
B completes desorption and the first adsorption tower A completes absorption.The first equalizing valve is opened afterwards（10）By second staggeredly balance pipe road（9）
Connect the first adsorption tower A outlet side and the second adsorption tower B inlet end staggeredly press for the first time, complete to interlock for the first time
The first equalizing valve is closed after pressing（10）, the first adsorption tower A enters packing state, while the second adsorption tower B is by opening second
Blowback equalizer valve（13）With product oxygen backflush pressurising pipeline（21）First time product oxygen pressurising is carried out, it is anti-to close second afterwards
Blow equalizer valve（13）, the first equalizing valve is opened again（10）By second staggeredly balance pipe road（9）Connect the first adsorption tower A's
Outlet side and the second adsorption tower B inlet end carry out second and staggeredly pressed.Complete second to open again after staggeredly pressing
Second blowback equalizer valve（13）Second of product oxygen pressurising is carried out to the second adsorption tower B, while the first adsorption tower A passes through opening
First desorption valve（6）Into depressurization desorption process, the second adsorption tower B is by opening second after completing second of product oxygen pressurising
Intake valve（5）Into air inlet adsorption process, a cyclic process is so far completed.Each automatic switch valve enters according to the requirement of following table
Row switching, the first adsorption tower A and the second adsorption tower B out-phase order are run, and its operating procedure is as shown in the table：
For the first time and secondary moment big flow blowback scavenging period is very short, about 0 ~ 1 s, and the dwell time is more than or equal to first
Secondary product gas pressurising time, about 0 ~ 2 s.
Blowback control valve in above-mentioned operating procedure（15）For normally open, other valves in addition to specified Open valve
Door is closed mode.
The dwell time of first time is more than or equal to product gas pressurising time first time, and secondary dwell time is more than or equal to
Second of product gas pressurising, and secondary dwell time is more than the dwell time of first time, the dwell time about 0 ~ 1 of first time
S, the s of secondary dwell time about 0.5 ~ 2.
Part noun lexical or textual analysis is as follows in the present invention：
Described product gas, also referred to as product oxygen, refer to the more difficult gas being adsorbed by adsorbent, such as relative to N2 adsorption
For agent, oxygen is the gas of more difficult absorption；
Described rich nitrogen waste gas refers to be easier to the gas being adsorbed by adsorbent, such as nitrogen absorber, nitrogen be compared with
The gas easily adsorbed；
Described adsorption tower is also referred to as absorber, adsorbent bed, refers to the container at least having loaded above-mentioned adsorbent with multiple layers；
Described pressurize refers to the intake valve of adsorption tower and air outlet valve being turned off, and adsorption tower internal pressure is tried hard to keep and holds constant mistake
Journey；
Described pressure refers to outlet side and the inlet end of another adsorption tower by the outlet side of two adsorption towers or adsorption tower
Connect, make the balanced process of two absorption tower pressure interior forces；
Described product oxygen pressurising refers to connect the outlet side of adsorption tower and product gas surge tank, and portioned product oxygen is filled
Enter in adsorption tower, make the elevated process of absorption tower pressure interior force；
Described pressure-variable adsorption（PSA）Signified is not only PSA methods, include periodic pressure similar therewith change and
Elevated pressures can be more than or equal to atmospheric pressure during adsorption separating method, wherein cyclically-varying, and relatively low pressure can
With less than or equal to atmospheric pressure, such as the methods of Vacuum Pressure Swing Adsorption.
The present invention compared with the existing technology has an advantageous effect in that：1）Using moment big flow blowback cleaning and for a long time
The intermittent backblowing process of low discharge blowback cleaning, adsorption tower desorption degree is effectively improved, and reduce the production for blowback cleaning
Product gas, improve oxygen generation efficiency；2) by repeatedly alternately pressure and pressurising, it can not only prevent that adsorbent layer from being penetrated ahead of time, and
And useful constituent fully in recovery adsorption tower, oxygen recovery rate is improved, reduces energy consumption.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is existing typical two towers swing adsorption oxygen generating system.
Fig. 2 is a kind of repeatedly blowback of the present invention and the swing adsorption oxygen generating system alternately pressed.
In Fig. 2：1. air compressor；2. cooling driers；P1. air cushioning tank；3. air inlet pipeline；A. oxygen absorbent processed is loaded
The first adsorption tower；B. the second adsorption tower of oxygen absorbent processed is loaded；4. the first intake valve；5. the second intake valve；6. the first solution
Inhale valve；7. the second desorption valve；8. first staggeredly balance pipe road；9. second staggeredly balance pipe road；10. the first equalizing valve；11. second
Equalizing valve；12. the first blowback equalizer valve；13. the second blowback equalizer valve；14. check valve；15. blowback control valve；16. the 3rd is anti-
Blow valve；17. blowback pipeline；18. first goes out oxygen control valve；19. second goes out oxygen control valve；20. oxygen output pipe road；P2. oxygen buffers
Tank；21. product oxygen backflush pressurising pipeline.
Embodiment
The purpose of the present invention, technical scheme and beneficial effect are carried out further specifically below by way of specific embodiment
It is bright, but should be understood that as described below is only the specific embodiment of the present invention, it is not intended to limit the invention.Not
In the case of departing from the above-mentioned technological thought of the present invention, the various replacements made according to this area common technique knowledge and customary means
Or change, it is included within the scope of the present invention.
The omnibus control system technique that this example is pressed using 2 multiple blowbacks of adsorption tower and alternately, with the first adsorption tower A
Exemplified by, after raw air enters the first adsorption tower A, the first adsorption tower A enters adsorption step, and body is obtained in the outlet side of adsorption tower
The product oxygen that fraction is about 93%, the second adsorption tower carries out depressurization desorption, in the middle and later periods portioned product oxygen of depressurization desorption
Pass through product oxygen backflush pressurising pipeline（21）With the second blowback equalizer valve of opening（13）Wink first time is carried out to the second adsorption tower B
Between big flow blowback clean, afterwards as caused by the first adsorption tower A outlet sides portioned product oxygen again pass through open the 3rd blowback
Valve（16）Low discharge blowback cleaning is carried out to the second adsorption tower B, opens the second blowback equalizer valve again（13）Adsorbed to second
Tower B carries out second of moment big flow blowback cleaning, bed solution after now the second adsorption tower experience decompression and multiple blowback cleaning
Suction is very thorough, and most of product oxygen caused by absorption phase the first adsorption tower A outlet sides passes through oxygen output pipe road（20）Output
To oxygen surge tank P2.
After the completion of adsorption step, the first equalizing valve is opened（10）Connect the first adsorption tower A outlet sides and adsorption tower B air inlet
End staggeredly press for the first time, completes to close the first equalizing valve after staggeredly pressing for the first time（10）, the first adsorption tower A, which enters, to be protected
Journey is pressed through, while opens the second blowback equalizer valve（13）Pass through product oxygen backflush pressurising pipeline（21）Second adsorption tower B is entered
Row first time product oxygen pressurising, opens the first equalizing valve again afterwards（10）Connect the first adsorption tower A outlet sides and absorption
Tower B inlet end carries out second and staggeredly pressed, and the first adsorption tower A is desorbed by opening first after completion is staggeredly pressed for the second time
Valve（6）Depressurization desorption is carried out, while opens the second blowback equalizer valve again（13）Pass through product oxygen backflush pressurising pipeline
（21）Second of product oxygen pressurising is carried out to the second adsorption tower B, the second air inlet is opened after the completion of second of product oxygen pressurising
Valve（5）Second adsorption tower B carries out air inlet adsorption process, and so far oxygen preparation experienced a circulation.By repeatedly alternately pressing
Afterwards, the useful constituent in the first adsorption tower A has fully been reclaimed.
After the cyclic process, the product gas recovery rate of PSA oxygen is more than 50%, is inhaled than existing typical transformation
The attached oxygen generation system rate of recovery improves more than 10%, and oxygen energy consumption processed reduces by more than 20%.
Claims (3)
1. a kind of repeatedly blowback and the swing adsorption oxygen generating system alternately pressed, mainly including air compressor（1）, cooling driers
（2）, air cushioning tank P1, air inlet pipeline（3）, filling oxygen absorbent processed the first adsorption tower A and the second adsorption tower B, first hand over
Wrong balance pipe road（8）, second staggeredly balance pipe road（9）, the first blowback equalizer valve（12）, the second blowback equalizer valve（13）, product
Oxygen backflush pipeline（17）, oxygen output pipe road（20）, oxygen surge tank P2, product oxygen backflush pressurising pipeline（21）, its feature exists
In：
Described first staggeredly balance pipe road（8）Pass through the second equalizing valve（11）First adsorption tower A inlet end and second are adsorbed
Tower B outlet side is connected；Second staggeredly balance pipe road（9）Pass through the first equalizing valve（10）By the first adsorption tower A outlet side with
Second adsorption tower B inlet end is connected；
Described product oxygen backflush pressurising pipeline（21）Pass through check valve（14）With the first blowback equalizer valve（12）First is inhaled
Attached tower A outlet side is connected, for the first adsorption tower A product oxygen pressurisings, product oxygen backflush pressurising pipeline（21）Pass through
Check valve（14）, the first blowback and equalizer valve（12）With the first desorption valve（6）For to the first adsorption tower A moment big flow blowbacks
Cleaning；Product oxygen backflush pressurising pipeline（21）Pass through check valve（14）With the second blowback equalizer valve（13）By the second adsorption tower B
Outlet side connect, for the second adsorption tower B product oxygen pressurisings, product oxygen backflush pressurising pipeline（21）Pass through check valve
（14）, the second blowback equalizer valve（13）With the second desorption valve（7）For being cleaned to the second adsorption tower B moment big flows blowback；
Described product oxygen backflush pipeline（17）Pass through blowback control valve（15）With the 3rd back-flushing valve（16）By the first adsorption tower A
Connected with the second adsorption tower B outlet side, adsorption tower is cleaned for low discharge blowback.
A kind of 2. repeatedly operating method of blowback and the swing adsorption oxygen generating system alternately pressed, it is characterised in that：
First adsorption tower A of described filling oxygen absorbent processed passes through air inlet pipeline（3）With open the first intake valve（4）Start into
Aspiration is attached, and the second adsorption tower B is by opening the second desorption valve（7）Depressurization desorption;After in the second adsorption tower B depressurization desorptions
Phase, open the second blowback equalizer valve（13）Pass through product oxygen backflush pressurising pipeline（21）Second adsorption tower B is carried out for the first time
Moment big flow product oxygen backflush is cleaned, then quick closedown the second blowback equalizer valve（13）, open the 3rd back-flushing valve（16）
Low discharge blowback cleaning is carried out to the second adsorption tower B, closes the 3rd back-flushing valve afterwards（16）, the second blowback pressurising is opened again
Valve（13）Pass through product oxygen backflush pressurising pipeline（21）It is anti-that second of moment big flow product oxygen is carried out to the second adsorption tower B
Blowing-out is washed, and closes the second blowback equalizer valve afterwards（13）, the first intake valve（4）With the second desorption valve（7）, now the second adsorption tower
B completes desorption and the first adsorption tower A completes absorption;The first equalizing valve is opened afterwards（10）By second staggeredly balance pipe road（9）
Connect the first adsorption tower A outlet side and the second adsorption tower B inlet end staggeredly press for the first time, complete to interlock for the first time
The first equalizing valve is closed after pressing（10）, the first adsorption tower A enters packing state, while the second adsorption tower B is by opening second
Blowback equalizer valve（13）With product oxygen backflush pressurising pipeline（21）First time product oxygen pressurising is carried out, it is anti-to close second afterwards
Blow equalizer valve（13）, the first equalizing valve is opened again（10）By second staggeredly balance pipe road（9）Connect the first adsorption tower A's
Outlet side and the second adsorption tower B inlet end carry out second and staggeredly pressed;Complete second to open again after staggeredly pressing
Second blowback equalizer valve（13）Second of product oxygen pressurising is carried out to the second adsorption tower B, while the first adsorption tower A passes through opening
First desorption valve（6）Into depressurization desorption process, the second adsorption tower B is by opening second after completing second of product oxygen pressurising
Intake valve（5）Into air inlet adsorption process, a cyclic process is so far completed.
A kind of 3. repeatedly operating method of blowback and the swing adsorption oxygen generating system alternately pressed, it is characterised in that：It is each to cut automatically
Change valve to switch over according to the requirement of following table, the first adsorption tower A and the second adsorption tower B out-phase order are run, its operating procedure
It is as shown in the table：
Described first time and second of moment big flow blowback scavenging period is very short, and about 0 ~ 1 s, the dwell time is more than or equal to
Product oxygen pressurising time first time, about 0 ~ 2 s.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619859A (en) * | 2018-04-26 | 2018-10-09 | 中国舰船研究设计中心 | A kind of manifold type pressure-variable adsorption gas system and method |
| CN108996476A (en) * | 2018-08-21 | 2018-12-14 | 威海东兴电子有限公司 | Six tower method for producing oxygen through |
| CN109534295A (en) * | 2018-12-27 | 2019-03-29 | 贵安新区华旭科技开发有限公司 | A kind of Portable oxygen-preparing mechanism oxygen control method and control circuit |
| CN110465158A (en) * | 2019-06-27 | 2019-11-19 | 杨皓 | A kind of pressure swing adsorption technique with heat pump system |
| CN110980651A (en) * | 2019-12-27 | 2020-04-10 | 广西珂深威医疗科技有限公司 | Oxygen generation system based on bidirectional complementary oxygen pressure equalization |
| CN112456445A (en) * | 2020-11-16 | 2021-03-09 | 尚铁军 | Efficient medical oxygen generator and oxygen generation method |
| CN114159928A (en) * | 2021-12-17 | 2022-03-11 | 湖南卓誉科技有限公司 | Integrated air inlet and outlet valve and pressure swing adsorption gas path system |
| CN114949647A (en) * | 2022-06-06 | 2022-08-30 | 北京航空航天大学 | System and method for extracting oxygen to prepare respiratory gas |
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| CN1748838A (en) * | 2005-09-07 | 2006-03-22 | 北京科技大学 | Small equalizing variable pressure adsorptive oxygen making device of adsorber air inlet end |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1748838A (en) * | 2005-09-07 | 2006-03-22 | 北京科技大学 | Small equalizing variable pressure adsorptive oxygen making device of adsorber air inlet end |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619859A (en) * | 2018-04-26 | 2018-10-09 | 中国舰船研究设计中心 | A kind of manifold type pressure-variable adsorption gas system and method |
| CN108619859B (en) * | 2018-04-26 | 2020-10-16 | 中国舰船研究设计中心 | Coupling type pressure swing adsorption gas production system and method |
| CN108996476A (en) * | 2018-08-21 | 2018-12-14 | 威海东兴电子有限公司 | Six tower method for producing oxygen through |
| CN109534295A (en) * | 2018-12-27 | 2019-03-29 | 贵安新区华旭科技开发有限公司 | A kind of Portable oxygen-preparing mechanism oxygen control method and control circuit |
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| CN110465158A (en) * | 2019-06-27 | 2019-11-19 | 杨皓 | A kind of pressure swing adsorption technique with heat pump system |
| CN110980651A (en) * | 2019-12-27 | 2020-04-10 | 广西珂深威医疗科技有限公司 | Oxygen generation system based on bidirectional complementary oxygen pressure equalization |
| CN112456445A (en) * | 2020-11-16 | 2021-03-09 | 尚铁军 | Efficient medical oxygen generator and oxygen generation method |
| CN112456445B (en) * | 2020-11-16 | 2022-05-31 | 河北金利康科技集团有限公司 | Efficient medical oxygen generator and oxygen generation method |
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| WO2023109024A1 (en) * | 2021-12-17 | 2023-06-22 | 湖南卓誉科技有限公司 | Integrated gas inlet and outlet valve and pressure swing adsorption gas path system |
| CN114949647A (en) * | 2022-06-06 | 2022-08-30 | 北京航空航天大学 | System and method for extracting oxygen to prepare respiratory gas |
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Application publication date: 20171215 |