CN207575520U - A kind of pulsed vacuum pressure swing adsorption machine - Google Patents
A kind of pulsed vacuum pressure swing adsorption machine Download PDFInfo
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- CN207575520U CN207575520U CN201720564739.4U CN201720564739U CN207575520U CN 207575520 U CN207575520 U CN 207575520U CN 201720564739 U CN201720564739 U CN 201720564739U CN 207575520 U CN207575520 U CN 207575520U
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- oxygen
- solenoid valve
- swing adsorption
- pressure swing
- vacuum pressure
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Abstract
The utility model discloses a kind of pulsed vacuum pressure swing adsorption machines, including oxygenerator ontology, oxygen container is equipped in the oxygenerator ontology, the outlet of the oxygen container is equipped with oxygen output tube, the oxygen output tube is equipped with the first solenoid valve in parallel and bilateral single-way switch solenoid valve, one access of the bilateral single-way switch solenoid valve is in parallel with the first solenoid valve, one end of another access of the bilateral single-way switch solenoid valve and the outlet of oxygen output tube and other end are connected with the differential pressure pickup for detecting human exhaled breath and suction condition.The pulsed vacuum pressure swing adsorption machine can effectively improve oxygen utilization rate.
Description
Technical field
The utility model is related to oxygenerator field, specially a kind of pulsed vacuum pressure swing adsorption machine.
Background technology
Current oxygenerators most of on the market use pressure-variable adsorption (PSA) oxygenerator, and pressure swing adsorption oxygen is also known as
Molecular-sieve type oxygen generator refers to based on pressure-variable adsorption (PSA) technology, and the novel device of oxygen is extracted from air.It is utilized
Molecular sieve physical absorption and desorption technique load molecular sieve in oxygenerator, can be remaining by nitrogen adsorption in air in pressurization
Unabsorbed oxygen be collected, the oxygen of high-purity is become after purified treatment.Specific work process is pressure
Contracting air enters adsorption tower after air purification drying machine purifies, by switching valve.In adsorption tower, nitrogen is inhaled by molecular sieve
It is attached, oxygen built up at the top of adsorption tower after enter oxygen storage tank, then through eliminating the unusual smell, dust removal filter and sterilizing filter filtering
Obtain qualified oxygen.
Vacuum pressure swing adsorption equipment, abbreviation VPSA oxygen generating plants.It is formed using VPSA is dedicated molecular sieve used with drier
Mixed bed layer-selective absorption air in the impurity such as nitrogen, carbon dioxide and water, oxygen is enabled to build up and collect in bed end,
The mol sieve beds of adsorption saturation state are desorbed under conditions of vacuumizing, so as to recycle the higher oxygen of obtained purity
Gas.
Existing equipment waste of oxygen is serious.
Utility model content
The purpose of this utility model is to provide a kind of pulsed Vacuum Pressure Swing Adsorptions for effectively improving oxygen utilization rate
Oxygenerator.
To achieve the above object, the utility model provides following technical solution：A kind of pulsed vacuum pressure swing adsorption
Machine including oxygenerator ontology, is equipped with oxygen container in the oxygenerator ontology, the outlet of the oxygen container is exported equipped with oxygen
Pipe, the oxygen output tube is equipped with the first solenoid valve in parallel and bilateral single-way switch solenoid valve, the bilateral are unidirectional
One access of switch electromagnetic valve is in parallel with the first solenoid valve, another access of the bilateral single-way switch solenoid valve
The outlet of one end and oxygen output tube and other end are connected with to be passed for detecting the pressure difference of human exhaled breath and suction condition
Sensor.
In above-mentioned pulsed vacuum pressure swing adsorption machine, the differential pressure pickup is corresponding with the differential pressure pickup
Bilateral single-way switch solenoid valve access between be equipped with second solenoid valve.
In above-mentioned pulsed vacuum pressure swing adsorption machine, oxygen concentration sensing is additionally provided on the oxygen output tube
Device and pressure sensor.
In above-mentioned pulsed vacuum pressure swing adsorption machine, at least two molecules are equipped in the oxygenerator ontology
Sieve and four-way valve, the molecular sieve are equipped with oxygen exhaust and air intlet, and the oxygen exhaust is connected to the entrance of oxygen container,
Two outlets of the four-way valve are respectively connected to the air intlet of a few molecular sieve, the two entrances of the four-way valve
It is respectively connected to extract the vacuum pump of nitrogen and the compressor for the injection air into molecular sieve in molecular sieve out.
In above-mentioned pulsed vacuum pressure swing adsorption machine, two outlets of the four-way valve and the sky of molecular sieve
Cooling pipe is equipped between gas import.
In above-mentioned pulsed vacuum pressure swing adsorption machine, the entrance of the compressor is connected with noise reduction box and mistake
Filter box.
In above-mentioned pulsed vacuum pressure swing adsorption machine, the vacuum pump and compressor become one
DC frequency conversion brushless vacuum compressor.
In above-mentioned pulsed vacuum pressure swing adsorption machine, the oxygen exhaust of at least two molecular sieves passes through company
Connection is taken over, the connecting tube is equipped with third solenoid valve.
Meanwhile the utility model also provides a kind of pulse using pulsed vacuum pressure swing adsorption machine as described above
Formula method for supplying oxygen, includes the following steps：
Step 1：It is continuous oxygen supply or pulse oxygen supply to judge present mode, if pulse oxygen supply pattern, then carries out step
2, if continuous oxygen supply then carries out step 5；
Step 2：Judge that human body is in expiration state or suction condition, if suction condition is then by differential pressure pickup
Step 3 is carried out, if expiration state then carries out step 4；
Step 3：The first solenoid valve, and timing are opened, if timing time has reached preset inspiration time, is carried out
Step 4；
Step 4：The first solenoid valve is closed, and carries out step 2；
Step 5：The first solenoid valve is closed, connects access in parallel with the first solenoid valve on bilateral single-way switch solenoid valve.
Compared with prior art, the beneficial effects of the utility model are：
Oxygen supply is controlled according to the respiratory rate of people, it mainly detects human body respiration frequency using micro pressure sensor
It realizes pulse oxygen supply, saves the utilization ratio that oxygen improves oxygen.Offering oxygen way using according to respiratory rate supply oxygen by the way of,
Human body respiration frequency is detected using micro pressure sensor, by the switch of microcontroller control solenoid valve, air-breathing oxygen supply is realized, exhales
When oxygen feeding stop.Oxygen is provided by oxygenerator or oxygen cylinder, and oxygen supply is continuous process, not because oxygen supply stops when exhaling
Only stop.The present apparatus is supplied oxygen in human body air-breathing so that patient is more comfortable with oxygen, so as to effectively increase the utilization of oxygen
Rate.
Description of the drawings
Fig. 1 is the structure diagram of the pulsed vacuum pressure swing adsorption machine of the embodiment 1 of the utility model.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Embodiment 1
Referring to Fig. 1, a kind of pulsed vacuum pressure swing adsorption machine, including oxygenerator ontology, the oxygenerator sheet
It is equipped with oxygen container 8 in vivo, the outlet of the oxygen container 8 is equipped with oxygen output tube, and the oxygen output tube is equipped with parallel connection
The first solenoid valve 15 and bilateral single-way switch solenoid valve 18, an access of the bilateral single-way switch solenoid valve 18 and
One solenoid valve 15 is in parallel, described one end of another access of bilateral single-way switch solenoid valve 18 and going out for oxygen output tube
Mouth connection and other end are connected with the differential pressure pickup 17 for detecting human exhaled breath and suction condition.
The present embodiment controls oxygen supply according to the respiratory rate of people, it mainly detects people using miniature differential pressure pickup 17
Body respiratory rate realizes pulse oxygen supply, saves the utilization ratio that oxygen improves oxygen.Offering oxygen way is used according to respiratory rate
The mode of oxygen supply detects human body respiration frequency using differential pressure pickup 17, by the switch of microcontroller control solenoid valve, realizes air-breathing
Oxygen supply, oxygen feeding stop during expiration.The present apparatus is supplied oxygen in human body air-breathing so that patient is more comfortable with oxygen, so as to effectively improve
The utilization rate of oxygen.
Specifically, method is：Include the following steps：
Step 1：It is continuous oxygen supply or pulse oxygen supply to judge present mode, if pulse oxygen supply pattern, then carries out step
2, if continuous oxygen supply then carries out step 5；
Step 2：Judge that human body is in expiration state or suction condition, if suction condition by differential pressure pickup 17
Step 3 is then carried out, if expiration state then carries out step 4；
Step 3：The first solenoid valve 15, and timing are opened, if timing time has reached preset inspiration time, into
Row step 4；
Step 4：The first solenoid valve 15 is closed, and carries out step 2；
Step 5：Normally opened first solenoid valve 15, is continuously supplied oxygen.
Further, the differential pressure pickup 17 and the 17 corresponding bilateral single-way switch solenoid valve 18 of differential pressure pickup
Access between be equipped with second solenoid valve 16, if in pulse oxygen supply state, then second solenoid valve 16 is opened, and bilateral is unidirectional
The path blockade in parallel with the first solenoid valve 15 on switch electromagnetic valve 18, if in continuously for oxygen condition, second solenoid valve
16 close, and the access in parallel with the first solenoid valve 15 connects on bilateral single-way switch solenoid valve 18.
It is further preferred that oxygen concentration sensor 14 and pressure sensor 12 are additionally provided on the oxygen output tube.Oxygen
The 5th solenoid valve 13 is equipped between concentration sensor 14 and oxygen output tube, two molecular sieves are equipped in the oxygenerator ontology
(6,7) and four-way valve 5, the molecular sieve are equipped with oxygen exhaust and air intlet, and the oxygen exhaust is connected to oxygen container 8
Entrance is equipped with the 4th solenoid valve (10,11) between oxygen exhaust and oxygen container 8, the 4th solenoid valve (10,11) is only to oxygen container 8
It is opened during gas supply, two outlets of the four-way valve 5 connect the air intlet of a molecular sieve, the four-way valve 5 respectively
Two entrances be respectively connected to vacuum pump 3-a for extracting molecular sieve (6,7) interior nitrogen out and for into molecular sieve (6,7)
Inject the compressor 3-b of air, the outlet connection denitrogen muffler 19 of vacuum pump 3-a, two outlets of the four-way valve 5 and
Cooling pipe 4 is equipped between the air intlet of molecular sieve, the entrance of the compressor 3-b is connected with noise reduction box 2 and filter cartridge 1,
The oxygen exhaust of two molecular sieves is connected by connecting tube, and the connecting tube is equipped with third solenoid valve 9.Actually make
With in the process, the vacuum pump 3-a and compressor 3-b are the DC frequency conversion brushless vacuum compressor 3-b to become one.This
The working method of oxygenerator ontology is：Air passed through under the action of the compression end of DC frequency conversion brushless vacuum compressor 3-b
The compression end of box 1, the arrival DC frequency conversion brushless vacuum compressor of noise reduction box 2 3-b are filtered, is then passed through after the cooling of cooling pipe 4
Four-way valve 5 is entered in the molecular sieve 6 adsorbed, and then nitrogen and other gases are adsorbed after absorption, and oxygen enters
Oxygen container 8；Another molecular sieve 7 is in desorption state, at this time the air inlet oxygen exhaust of the molecular sieve 7 and another point
The oxygen exhaust connection of son sieve 6, the air intlet of the molecular sieve 7 pass through four-way valve 5 and DC frequency conversion brushless vacuum compressor 3-b's
It vacuumizes end to connect, the nitrogen in the molecular sieve 7 drains into air, while another molecular sieve 6 is by opening third solenoid valve 9
To just being supplied oxygen in the molecular sieve of desorption 7, to replace the nitrogen in molecular sieve 7, desorption effect is improved.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that by containing in the equivalent requirements of the claims is fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (8)
1. a kind of pulsed vacuum pressure swing adsorption machine is equipped with storage oxygen including oxygenerator ontology, in the oxygenerator ontology
Tank, it is characterised in that：The outlet of the oxygen container is equipped with oxygen output tube, and the oxygen output tube is equipped in parallel the
One solenoid valve and bilateral single-way switch solenoid valve, the access and the first solenoid valve of the bilateral single-way switch solenoid valve are simultaneously
Connection, one end of another access of the bilateral single-way switch solenoid valve and the outlet of oxygen output tube and other one
End is connected with the differential pressure pickup for detecting human exhaled breath and suction condition.
2. pulsed vacuum pressure swing adsorption machine according to claim 1, it is characterised in that：The differential pressure pickup
Second solenoid valve is equipped between the access of the corresponding bilateral single-way switch solenoid valve of the differential pressure pickup.
3. pulsed vacuum pressure swing adsorption machine according to claim 1, which is characterized in that the oxygen output tube
On be additionally provided with oxygen concentration sensor and pressure sensor.
4. pulsed vacuum pressure swing adsorption machine according to claim 1, which is characterized in that the oxygenerator ontology
At least two molecular sieves and four-way valve are inside equipped with, the molecular sieve is equipped with oxygen exhaust and air intlet, the oxygen exhaust
The entrance of oxygen container is connected to, two outlets of the four-way valve are respectively connected to the air intlet of a few molecular sieve, institute
The two entrances for the four-way valve stated are respectively connected to for extracting in molecular sieve the vacuum pump of nitrogen out and for being noted into molecular sieve
Enter the compressor of air.
5. pulsed vacuum pressure swing adsorption machine according to claim 4, which is characterized in that the two of the four-way valve
Cooling pipe is equipped between a outlet and the air intlet of molecular sieve.
6. pulsed vacuum pressure swing adsorption machine according to claim 4, which is characterized in that the compressor enters
Mouth is connected with noise reduction box and filter cartridge.
7. pulsed vacuum pressure swing adsorption machine according to claim 4, which is characterized in that the vacuum pump and pressure
Contracting machine is the DC frequency conversion brushless vacuum compressor to become one.
8. pulsed vacuum pressure swing adsorption machine according to claim 4, which is characterized in that described at least two points
The oxygen exhaust of son sieve is connected by connecting tube, and the connecting tube is equipped with third solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720564739.4U CN207575520U (en) | 2017-05-20 | 2017-05-20 | A kind of pulsed vacuum pressure swing adsorption machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720564739.4U CN207575520U (en) | 2017-05-20 | 2017-05-20 | A kind of pulsed vacuum pressure swing adsorption machine |
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| Publication Number | Publication Date |
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| CN207575520U true CN207575520U (en) | 2018-07-06 |
Family
ID=62718275
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| CN201720564739.4U Active CN207575520U (en) | 2017-05-20 | 2017-05-20 | A kind of pulsed vacuum pressure swing adsorption machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308529A (en) * | 2017-05-20 | 2017-11-03 | 广东欧格斯科技有限公司 | A kind of pulsed vacuum pressure swing adsorption machine and pulsed method for supplying oxygen |
| CN112546388A (en) * | 2020-12-04 | 2021-03-26 | 可孚医疗科技股份有限公司 | Self-adaptive pulse type oxygen generator and oxygen supply control method and device thereof |
-
2017
- 2017-05-20 CN CN201720564739.4U patent/CN207575520U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308529A (en) * | 2017-05-20 | 2017-11-03 | 广东欧格斯科技有限公司 | A kind of pulsed vacuum pressure swing adsorption machine and pulsed method for supplying oxygen |
| CN112546388A (en) * | 2020-12-04 | 2021-03-26 | 可孚医疗科技股份有限公司 | Self-adaptive pulse type oxygen generator and oxygen supply control method and device thereof |
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