CN107473185A - The air inlet denitrogen system and its control method of a kind of oxygenerator - Google Patents
The air inlet denitrogen system and its control method of a kind of oxygenerator Download PDFInfo
- Publication number
- CN107473185A CN107473185A CN201710914822.4A CN201710914822A CN107473185A CN 107473185 A CN107473185 A CN 107473185A CN 201710914822 A CN201710914822 A CN 201710914822A CN 107473185 A CN107473185 A CN 107473185A
- Authority
- CN
- China
- Prior art keywords
- magnetic valve
- oxygen
- sieve
- room
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000001301 oxygen Substances 0.000 claims abstract description 58
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 58
- 239000007789 gas Substances 0.000 claims abstract description 48
- 239000004575 stone Substances 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000005667 attractant Substances 0.000 description 1
- 230000031902 chemoattractant activity Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0028—Separation of the specific gas from gas mixtures containing a minor amount of this specific gas
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
A kind of air inlet denitrogen system of oxygenerator includes：Screen drum, air inlet, oxygen exhaust, two denitrogen mouths, screen drum includes two sieve rooms, oxygen-storage cavity, magnetic valve and check valve, sieve is indoor equipped with sieve stone, intake valve is provided with air inlet, first magnetic valve is between air inlet and the first sieve room and controls air inlet and first to sieve the folding of gas circuit between room；Second solenoid valve is between air inlet and the second sieve room and controls air inlet and second to sieve the folding of gas circuit between room；The folding of 3rd magnetic valve gas circuit between the first sieve room and denitrogen mouth and between the sieve room of control first and denitrogen mouth；The folding of 4th magnetic valve gas circuit between the second sieve room and denitrogen mouth and between the sieve room of control second and denitrogen mouth；5th magnetic valve is located between oxygen-storage cavity and oxygen exhaust and controls the folding of gas circuit between oxygen-storage cavity and oxygen exhaust；6th solenoid valve control first sieves the folding of gas circuit between room and the second sieve room.The present invention can be precisely controlled gas flow, running is steady, oxygen generation efficiency is high.
Description
Technical field
The present invention relates to PSA oxygen generator machine, the air inlet denitrogen system and controlling party of specifically a kind of oxygenerator
Method.
Background technology
In recent years, because pressure-variable adsorption (PSA) technology develops rapidly, the application field of omnibus control system is also increasingly
Extensively.Pressure-variable adsorption (PSA) air-separating oxygen-making technology, it is under pressure to oxygen, N2 adsorption in air based on attractant
The difference of ability realizes the separation of oxygen, nitrogen.When compressed air enters the bed equipped with adsorbent, adsorption capacity for nitrogen is stronger
It is adsorbed, and oxygen is not adsorbed, and the oxygen of high concentration can be so obtained in the adsorbent bed port of export.Omnibus control system technology
It is safe and reliable using air as oxygen raw material processed, it disclosure satisfy that common oxygen-enriched demand.
But PSA oxygen generator machine on the market mostly uses piston machine formula at present, structural elements are more, make work
Skill is complicated, and assembling is more difficult, this unstable shortcoming of running be present, it is difficult to meet the requirement of client.Due to making and filling
With complexity so that holistic cost raises.
The content of the invention
It is a primary object of the present invention to, there is provided gas flow can be precisely controlled, the oxygen processed that running is steady, oxygen generation efficiency is high
The air inlet denitrogen system and its control method of machine.
For the above-mentioned purpose, the air inlet denitrogen system of oxygenerator of the present invention includes：Screen drum, air inlet, oxygen exhaust, two denitrogens
Mouthful, screen drum includes the first sieve room, the second sieve room, oxygen-storage cavity, the first magnetic valve, the 3rd magnetic valve, the 5th magnetic valve, the 6th electromagnetism
Valve, the first check valve and the second check valve, first sieves room and the second sieve interior, and equipped with sieving, stone, air inlet are interior to be provided with intake valve, institute
The first magnetic valve is stated between air inlet and the first sieve room, gas circuit between the first solenoid valve control air inlet and the first sieve room
Folding；Second solenoid valve is between air inlet and the second sieve room, gas between second solenoid valve control air inlet and the second sieve room
The folding on road；3rd magnetic valve between the first sieve room and denitrogen mouth, the 3rd solenoid valve control first sieve room and denitrogen mouth it
Between gas circuit folding；4th magnetic valve is between the second sieve room and denitrogen mouth, the 4th solenoid valve control second sieve room and denitrogen
The folding of gas circuit between mouthful；5th magnetic valve is located between oxygen-storage cavity and oxygen exhaust, and the 5th solenoid valve control oxygen-storage cavity is with going out oxygen
The folding of gas circuit between mouthful；6th solenoid valve control first sieves the folding of gas circuit between room and the second sieve room.
Further, wherein also including pressure inductor, for sensing the gas pressure in oxygen-storage cavity.
Further, wherein also including processor, the processor and the first magnetic valve, second solenoid valve, the 3rd magnetic valve,
4th magnetic valve, the 5th magnetic valve, the 6th magnetic valve, intake valve and pressure inductor are connected.
The control method of the above-mentioned air inlet denitrogen system suitable for pressure swing adsorption method oxygenerator includes going out oxygen step as follows：Open
Machine is powered, and opens intake valve, and the first magnetic valve is opened in processor control, and air enters the first sieve interior and sieved；Oxygen leads to
The first check valve is crossed to enter in oxygen-storage cavity；When the gas pressure that pressure inductor is detected in oxygen-storage cavity is less than first threshold,
The 5th magnetic valve is opened in processor control, and oxygen is discharged by oxygen exhaust；The gas pressure in oxygen-storage cavity is detected when pressure inductor
Power is more than Second Threshold, and the 5th magnetic valve is closed in processor control, stops oxygen output.
Further, above-mentioned control method also includes following denitrogen step：Open the first magnetic valve, the 4th magnetic valve and the 6th
Magnetic valve, partial oxidation passes through enters the second sieve interior by the first sieve room, and the indoor nitrogen of the second sieve is discharged by the right denitrogen mouth.
Further, above-mentioned control method also includes following overvoltage protection step：When pressure inductor is detected in oxygen-storage cavity
Gas pressure when being more than three threshold values, the first magnetic valve and the 3rd magnetic valve are opened in processor control, close magnetic valve, compression
The air of machine is directly discharged after being entered by intake valve by left side denitrogen mouth.
The gas path on-off of the present invention is by processor intelligent control, and gas flow control is accurate, and running is steady, oxygen generation efficiency
It is high.Pressure inductor senses human body respiration state, oxygen is exported in human body air-breathing, usage comfort is high, improves oxygen
Availability.
Brief description of the drawings
Fig. 1 is the structure chart of the air inlet denitrogen system of oxygenerator of the present invention；
Fig. 2 is the structure chart of the screen drum of the present invention；
Fig. 3 is the circuit catenation principle figure of the present invention；
Fig. 4 is the gas flow path schematic diagram of the oxygen preparation of embodiments of the invention one；
Fig. 5 is the gas flow path schematic diagram of the blowback denitrogen process of embodiments of the invention one；
Fig. 6 is the gas flow path schematic diagram of the overvoltage protection process of embodiments of the invention one.
Embodiment
Refer to shown in Fig. 1-6, the present invention is the air inlet denitrogen system for a kind of oxygenerator, including：Screen drum 11, air inlet
Mouth, oxygen exhaust 9, two denitrogen mouths 10, the first magnetic valve 1, second solenoid valve 2, the 3rd magnetic valve 3, the electricity of the 4th magnetic valve the 4, the 5th
Magnet valve 5, the 6th magnetic valve 6, the first check valve 13, the second check valve 14, pressure inductor 8.
Screen drum 11 includes the first sieve room 111, second and sieves room 112 and oxygen-storage cavity 113, and room 112 is sieved in the first sieve room 111 and second
Built with sieve stone, intake valve 7 is provided with air inlet.
First magnetic valve 1 is provided between air inlet and the first sieve room 111, the first magnetic valve 1 control air inlet and the
The folding of gas circuit between one sieve room 111；Second solenoid valve 2 between air inlet and the second sieve room 112, control by second solenoid valve 2
The folding of gas circuit between air inlet processed and the second sieve room 112；3rd magnetic valve 3 is sieved between room 111 and denitrogen mouth 10 located at first,
The folding of gas circuit between the sieve room 111 of 3rd magnetic valve 3 control first and denitrogen mouth 10；4th magnetic valve 4 is located at the second sieve room 112
Between denitrogen mouth 10, the folding of gas circuit between the sieve room 112 of the 4th magnetic valve 4 control second and denitrogen mouth 10；5th magnetic valve 5
Between oxygen-storage cavity 113 and oxygen exhaust 9, the folding of gas circuit between the 5th magnetic valve 5 control oxygen-storage cavity 113 and oxygen exhaust 9；The
Sieve the folding of gas circuit between room 112 in the first sieve of six magnetic valves 6 control room 111 and second.
The first sieve of first check valve 13 connection room 111 and oxygen-storage cavity 113, the sieve room 112 of the second check valve 14 connection second and
Oxygen-storage cavity 113.
As shown in figure 3, the present invention is applied to the air inlet denitrogen system of pressure swing adsorption method oxygenerator, in addition to processor（Figure
In non-label）, the processor and the first magnetic valve 1, second solenoid valve 2, the 3rd magnetic valve 3, the 4th magnetic valve the 4, the 5th are electric
Magnet valve 5, the 6th magnetic valve 6, intake valve 7, pressure inductor 8 are connected.Processor controls the first magnetic valve 1, second solenoid valve
2nd, the switch of the 3rd magnetic valve 3, the 4th magnetic valve 4, the 5th magnetic valve 5, the 6th magnetic valve 6 and intake valve 7, pressure inductor 8
Detect the gas pressure in oxygen-storage cavity 113 and output pressure signal to processor, processor controls the break-make of each magnetic valve.
Embodiment one：With first sieve 111 oxygen processed of room, second sieve the denitrogen of room 112 exemplified by, oxygen preparation, blowback denitrogen process,
Overvoltage protection process is as follows：
Oxygen preparation
As shown in figure 4, start is powered, intake valve 7 is opened, and the first magnetic valve 1 is opened in processor control, and air enters the first sieve room
Sieved in 111, oxygen is entered in oxygen-storage cavity 113 by the first check valve 13, when pressure inductor 8 detects oxygen-storage cavity
When gas pressure in 113 is less than first threshold（It is judged as human body suction condition）, processor control the 5th magnetic valve of opening
5, oxygen is discharged by oxygen exhaust 9；When the gas pressure that pressure inductor 8 is detected in oxygen-storage cavity 113 is more than Second Threshold（Sentence
Break and feel elated and exultant state for human body）, processor control the 5th magnetic valve 5 of closing, stop oxygen output.
Blowback denitrogen process
As shown in figure 5, the first magnetic valve 1, the 4th magnetic valve 4 and the 6th magnetic valve 6 are opened, partial oxidation passes through by the first sieve room
111 enter second sieve rooms 112 in, to second sieve room 112 in nitrogen certain pressure, second sieve room 112 in nitrogen by the right
Denitrogen mouth 10 is discharged.
Overvoltage protection process
As shown in fig. 6, when the gas pressure that pressure inductor 8 is detected in oxygen-storage cavity 113 is more than three threshold values, that is, it is judged as
Oxygen storage is excessive, and the first magnetic valve 1 and the 3rd magnetic valve 3 are opened in processor control, close magnetic valve 6, the air of compressor
Directly discharged after being entered by intake valve 7 by left side denitrogen mouth 10, ensure that the pressure balance of left side sieve stone.Magnetic valve 6 is closed, is stopped
Only to the blowback of the second sieve room 112, the pressure in the second sieve room 112 is preserved, the time is saved for oxygen denitrogen processed next time.
Embodiment two：When the second sieve 112 oxygen processed of room, the first sieve 111 denitrogen of room, flow and embodiment 1 are symmetrical.
Oxygen preparation
Start is powered, and intake valve 7 is opened, and second solenoid valve 2 is opened in processor control, and air, which enters in the second sieve room 112, to be carried out
Screening, oxygen is entered in oxygen-storage cavity 113 by the second check valve 14, when pressure inductor 8 detects the gas in oxygen-storage cavity 113
When pressure is less than first threshold（It is judged as human body suction condition）, processor control the 5th magnetic valve 5 of opening, oxygen is by going out oxygen
Mouth 9 is discharged；When the gas pressure that pressure inductor 8 is detected in oxygen-storage cavity 113 is more than Second Threshold（It is judged as that human body is felt elated and exultant
State）, processor control the 5th magnetic valve 5 of closing, stop oxygen output.
Blowback denitrogen process
Second solenoid valve 2, the 3rd magnetic valve 3 and the 6th magnetic valve 6 are opened, and partial oxidation passes through enters the by the first sieve room 111
Two sieve rooms 112 in, to first sieve room 111 in nitrogen certain pressure, first sieve room 111 in nitrogen by the row of left side denitrogen mouth 10
Go out.
Overvoltage protection process
When the gas pressure that pressure inductor 8 is detected in oxygen-storage cavity 113 is more than three threshold values, that is, it is judged as oxygen storage mistake
Amount, processor control open the magnetic valve 4 of second solenoid valve 2 and the 4th, close magnetic valve 6, the air of compressor is by intake valve 7
Directly discharged after by the right denitrogen mouth 10, ensure that the pressure balance of left side sieve stone, add the service life of product.Close
Magnetic valve 6 is closed, stops the blowback to the first sieve room 111, the pressure in the first sieve room 111 is preserved, for oxygen denitrogen section processed next time
Make an appointment, improve oxygen operating efficiency processed.
The air inlet denitrogen system of the suitable oxygenerator of the present invention, left and right are circulated carry out air inlet and acted with denitrogen.Gas path on-off by
Processor intelligent control, gas flow control is accurate, and running is steady, and oxygen generation efficiency is high.Pressure inductor 8 senses human body respiration shape
State, oxygen is exported in human body air-breathing, usage comfort is high, improves the availability of oxygen.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
It is interior.
Claims (6)
1. a kind of air inlet denitrogen system of oxygenerator, including：Screen drum（11）, air inlet, oxygen exhaust（9）, two denitrogen mouths（10）, sieve
Cylinder（11）Including the first sieve room（111）, second sieve room（112）And oxygen-storage cavity（113）, the first sieve room（111）And second sieve room
（112）Built with sieve stone, intake valve is provided with air inlet（7）, it is characterised in that wherein also include：First magnetic valve（1）,
Three magnetic valves（3）, the 5th magnetic valve（5）, the 6th magnetic valve（6）, the first check valve（13）, the second check valve（14）,
First magnetic valve（1）Located at air inlet and the first sieve room（111）Between, the first magnetic valve（1）Control air inlet with
First sieve room（111）Between gas circuit folding；
Second solenoid valve（2）Located at air inlet and the second sieve room（112）Between, second solenoid valve（2）Control air inlet and second
Sieve room（112）Between gas circuit folding；
3rd magnetic valve（3）Located at the first sieve room（111）With denitrogen mouth（10）Between, the 3rd magnetic valve（3）The sieve of control first room
（111）With denitrogen mouth（10）Between gas circuit folding；
4th magnetic valve（4）Located at the second sieve room（112）With denitrogen mouth（10）Between, the 4th magnetic valve（4）The sieve of control second room
（112）With denitrogen mouth（10）Between gas circuit folding；
5th magnetic valve（5）Located at oxygen-storage cavity（113）With oxygen exhaust（9）Between, the 5th magnetic valve（5）Control oxygen-storage cavity（113）
With oxygen exhaust（9）Between gas circuit folding；
6th magnetic valve（6）The sieve of control first room（111）With the second sieve room（112）Between gas circuit folding.
2. the air inlet denitrogen system of oxygenerator as claimed in claim 1, it is characterised in that wherein also include pressure inductor
（8）, for sensing oxygen-storage cavity（113）Interior gas pressure.
3. the air inlet denitrogen system of oxygenerator as claimed in claim 2, it is characterised in that wherein also include processor, it is described
Processor and the first magnetic valve（1）, second solenoid valve（2）, the 3rd magnetic valve（3）, the 4th magnetic valve（4）, the 5th magnetic valve
（5）, the 6th magnetic valve（6）, intake valve（7）And pressure inductor（8）It is connected, processor controls the first magnetic valve（1）, second
Magnetic valve（2）, the 3rd magnetic valve（3）, the 4th magnetic valve（4）, the 5th magnetic valve（5）, the 6th magnetic valve（6）And intake valve（7）
Break-make, pressure inductor（8）Output pressure signal is to processor.
4. the control method of the air inlet denitrogen system of the oxygenerator as described in claim 1-3 any one includes going out oxygen step as follows
Suddenly：
Start is powered, and opens intake valve（7）, processor control the first magnetic valve of opening（1）, air enter first sieve room（111）
Inside sieved；
Oxygen passes through the first check valve（13）Into oxygen-storage cavity（113）It is interior；
Work as pressure inductor（8）Detect oxygen-storage cavity（113）When interior gas pressure is less than first threshold, processor control is opened
5th magnetic valve（5）, oxygen is by oxygen exhaust（9）Discharge；
Work as pressure inductor（8）Detect oxygen-storage cavity（113）Interior gas pressure is more than Second Threshold, and processor control closes the
Five magnetic valves（5）, stop oxygen output.
5. the control method of the air inlet denitrogen system of oxygenerator as claimed in claim 4 also includes following denitrogen step：
Open the first magnetic valve（1）, the 4th magnetic valve（4）And the 6th magnetic valve（6）, partial oxidation passes through sieves room by first
（111）Into the second sieve room（112）It is interior, the second sieve room（112）Interior nitrogen is by the right denitrogen mouth（10）Discharge.
6. the control method of the air inlet denitrogen system of oxygenerator as claimed in claim 5 also includes following overvoltage protection step：
Work as pressure inductor（8）Detect oxygen-storage cavity（113）When interior gas pressure is more than three threshold values, processor control is opened
First magnetic valve（1）And the 3rd magnetic valve（3）, close magnetic valve（6）, the air of compressor is by intake valve（7）After directly
By left side denitrogen mouth（10）Discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710914822.4A CN107473185A (en) | 2017-09-30 | 2017-09-30 | The air inlet denitrogen system and its control method of a kind of oxygenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710914822.4A CN107473185A (en) | 2017-09-30 | 2017-09-30 | The air inlet denitrogen system and its control method of a kind of oxygenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107473185A true CN107473185A (en) | 2017-12-15 |
Family
ID=60605295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710914822.4A Pending CN107473185A (en) | 2017-09-30 | 2017-09-30 | The air inlet denitrogen system and its control method of a kind of oxygenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107473185A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030192431A1 (en) * | 2002-04-12 | 2003-10-16 | Lee Tae Soo | Gas concentrating method and apparatus using pressure swing adsorption |
| CN1608711A (en) * | 2003-10-24 | 2005-04-27 | 国睦工业股份有限公司 | Gas flow controlling method and mechanical valve unit suitable for pressure swing adsorption oxygenerator |
| CN202625849U (en) * | 2012-06-28 | 2012-12-26 | 沈阳迈思医疗科技有限公司 | Portable closed-loop control molecular sieve oxygenerator |
| CN102923667A (en) * | 2012-11-08 | 2013-02-13 | 上海康盟保健用品有限公司 | Air purifying and fresh air oxygen supplying oxygenerator |
| CN202808350U (en) * | 2012-09-20 | 2013-03-20 | 江苏科凌医疗器械有限公司 | Medical healthcare oxygen generator |
| CN105460897A (en) * | 2014-09-07 | 2016-04-06 | 刘先忠 | Human-powered oxygen making machine |
-
2017
- 2017-09-30 CN CN201710914822.4A patent/CN107473185A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030192431A1 (en) * | 2002-04-12 | 2003-10-16 | Lee Tae Soo | Gas concentrating method and apparatus using pressure swing adsorption |
| CN1608711A (en) * | 2003-10-24 | 2005-04-27 | 国睦工业股份有限公司 | Gas flow controlling method and mechanical valve unit suitable for pressure swing adsorption oxygenerator |
| CN202625849U (en) * | 2012-06-28 | 2012-12-26 | 沈阳迈思医疗科技有限公司 | Portable closed-loop control molecular sieve oxygenerator |
| CN202808350U (en) * | 2012-09-20 | 2013-03-20 | 江苏科凌医疗器械有限公司 | Medical healthcare oxygen generator |
| CN102923667A (en) * | 2012-11-08 | 2013-02-13 | 上海康盟保健用品有限公司 | Air purifying and fresh air oxygen supplying oxygenerator |
| CN105460897A (en) * | 2014-09-07 | 2016-04-06 | 刘先忠 | Human-powered oxygen making machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104801144B (en) | Oxygen concentrator | |
| CA2866716C (en) | System and method for concentrating gas | |
| CN109613859A (en) | A kind of molecular-sieve oxygen generator and its control system, method | |
| EP2065067A1 (en) | Oxygen concentrator | |
| CN104944378B (en) | Soft oxygen cabin system, the control system of soft oxygen cabin, oxygen generating plant and method | |
| CN105727405B (en) | airborne molecular sieve oxygen system | |
| CN206638642U (en) | A kind of oxygenerator with Concentration Testing | |
| CN100479878C (en) | Mini self-adaptive extrusion type oxygen output device | |
| JP4477630B2 (en) | Air storage slide valve | |
| CN113117200A (en) | Pulse control system for portable oxygen generator | |
| CN202883332U (en) | Mini air pump | |
| CN107473185A (en) | The air inlet denitrogen system and its control method of a kind of oxygenerator | |
| CN207330362U (en) | A kind of air inlet denitrogen system of oxygenerator | |
| CN107010601A (en) | Crankshaft driving piston formula molecular sieve oxygen generating system | |
| CN202620425U (en) | Oxygenerator control valve | |
| JP4798016B2 (en) | Oxygen concentrator | |
| CN206886670U (en) | Pressure-variable adsorption multitower oxygen generation system | |
| CN105460897A (en) | Human-powered oxygen making machine | |
| JP2695747B2 (en) | Adsorption type oxygen concentrator | |
| CN110161951A (en) | The control system of bimolecular sieve adsorbent equipment | |
| JP2005081258A (en) | Oxygen enricher | |
| CN209414102U (en) | Integrated pump valve aerating and exhaust device | |
| CN109279579A (en) | A kind of oxygenerator with function of increasing pressure | |
| CN208776316U (en) | Oxygenerator | |
| CN203510773U (en) | Safe dual solenoid valve for mechanical press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20171215 Assignee: Yuxi West West energy saving and emission reduction Service Co.,Ltd. Assignor: WUHAN MEIYANG TECHNOLOGY Co.,Ltd. Contract record no.: X2021420000002 Denomination of invention: The invention relates to an air inlet and nitrogen exhaust system of an oxygen generator and a control method thereof License type: Exclusive License Record date: 20210118 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171215 |
|
| WD01 | Invention patent application deemed withdrawn after publication |