CN105883723A - Variable frequency altitude self-adaption pressure swing adsorption oxygenator and oxygen generation method - Google Patents
Variable frequency altitude self-adaption pressure swing adsorption oxygenator and oxygen generation method Download PDFInfo
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- CN105883723A CN105883723A CN201610203056.6A CN201610203056A CN105883723A CN 105883723 A CN105883723 A CN 105883723A CN 201610203056 A CN201610203056 A CN 201610203056A CN 105883723 A CN105883723 A CN 105883723A
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- 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
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- 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
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
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- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
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- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The invention provides a variable frequency altitude self-adaption pressure swing adsorption oxygenator and an oxygen generation method. The oxygenator comprises an air compression unit, a heat dissipating dry unit, an oxygen generation adsorption unit, a pressure sensor, a control unit and a frequency converter. A first output end of the air compression unit is connected with a first input end of the heat dissipating dry unit, and a first output end of the heat dissipating dry unit is connected with a first input end of the oxygen generation adsorption unit. An input end of the pressure sensor is connected with the first output end of the heat dissipating dry unit, and an output end of the pressure sensor is connected with a first input end of the control unit. An input end of the frequency converter is connected with a first output end of the control unit, and an output end of the frequency converter is connected with a first input end of the air compression unit. The control unit changes the power working frequency of the air compression unit through the frequency converter according to a control signal transmitted by the pressure sensor. The variable frequency altitude self-adaption pressure swing adsorption oxygenator and the oxygen generation method can meet the oxygen generation requirements in all areas where the air thickness degrees are different at different altitudes.
Description
Technical field
The present invention relates to a kind of frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen and method for producing oxygen through, belong to
In medical health apparatus field.
Background technology
(Pressure Swing Absorption is called for short: PSA) oxygenerating technology is with sky pressure-variable adsorption
Gas is raw material, with zeolite molecular sieve as adsorbent, is passed through in adsorbent after air imposes certain pressure,
Under a certain pressure, zeolite molecular sieve can adsorb the nitrogen in air, thus the oxygen in air is rich
Collection, and when zeolite molecular sieve absorption nitrogen is saturated, make nitrogen desorption arrange zeolite molecular sieve blood pressure lowering
Go out and zeolite molecular sieve is carried out regeneration recycling.Therefore, omnibus control system technology is inhaled by pressurization
Attached, the Rapid Circulation process of decompression desorption, makes the oxygen in air raw material, nitrogen separation thus prepares
Store oxygen.
Along with China carrying out in a large number, in high open country in the economic construction work of western plateau in recent years
Oxygen demand in outer work also gets more and more, and existing small-sized portable pressure swing adsorption oxygen is divided into flat
Prototype oxygenerator and plateau type oxygenerator, wherein, plain type oxygenerator be primarily adapted for use in atmospheric density big,
The normal plains region of air pressure, is easy to extract q.s air in such area by air pump, thus will
Air is sent in zeolite molecular sieve with certain pressure and is completed oxygen preparation, but plain type oxygenerator is on plateau
During use, because adsorbent bed admission pressure is not enough, or the index such as oxygen-producing amount, oxygen concentration does not reaches relevant criterion
Requirement, or valve do not open can not normal boot-strap run.And plateau type oxygenerator is when Plain uses, because inhaling
Attached bed admission pressure is too high, or adsorbent bed penetrates oxygen concentration dramatic decrease, or pressure blocks and can not normally transport
OK.Therefore, prior art can not be simultaneously suitable for the oxygen processed of highlands and plains region
Machine and method for producing oxygen through.
Summary of the invention
The present invention provides a kind of frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen and method for producing oxygen through, uses
Not only plains region cannot be can be suitably used for but also can fit in solving existing small-sized portable pressure swing adsorption oxygen
Should be in the defect of the highlands of the higher rarefaction of air of height above sea level.
The present invention provides a kind of frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen, including: air pressure
Contracting unit, heat radiation drying unit, oxygen absorbing unit processed, pressure transducer, control unit and converter；
First outfan of described air compression unit connects with the first input end of described heat radiation drying unit
Connecing, the first outfan of described heat radiation drying unit is connected with the first input end of described oxygen absorbing unit processed,
Described air compression unit is for extracting air and being compressed the air of described extraction from air
Filter；
The input of described pressure transducer is connected with the first outfan of described heat radiation drying unit, described
The outfan of pressure transducer is connected with the first input end of described control unit；
The input of described converter is connected with the first outfan of described control unit, described converter
Outfan is connected with the first input end of described air compression unit, and described converter is used for changing described sky
The operating frequency of gas compression unit；
Described pressure transducer enters the force value of air in described oxygen absorbing unit processed for monitoring, and will
Described force value is transferred to described control unit；
Described control unit is for sending to described converter when described force value is less than the first predetermined threshold value
Control signal, so that described converter improves the operating frequency of described air compression unit.
Further, also include: oxygen flow monitoring means and oxygen purity monitoring means, described oxygen
The input of flow monitoring unit and the input of oxygen purity monitoring means are single with the absorption of described oxygen processed respectively
The oxygen output of unit connects, the first outfan of described oxygen flow monitoring means and described control unit
Second input connect, the outfan of described oxygen purity monitoring means and the 3rd of described control unit the
Input connects.
Further, also include: making oxygen driver element, the input of described making oxygen driver element
End is connected with the second outfan of described control unit, the outfan of described making oxygen driver element and institute
The second input stating oxygen absorbing unit processed connects；
Described making oxygen driver element is for changing the oxygen running parameter processed of described oxygen absorbing unit processed.
Further, described making oxygen driver element includes motor.
Further, described air compression unit includes air pump and filter, the outfan of described filter
Being connected with the input of described air pump, described filter is for filtering the sky that described air pump extracts from air
Gas, described air pump is for being compressed the air of described extraction.
Further, described heat radiation drying unit includes radiator and the rotary separator interconnected.
Further, the first outfan of described heat radiation drying unit, the first of described oxygen absorbing unit processed
The input of input and described pressure transducer is connected by threeway.
Further, also include that interface board, described interface board include circuit interface, air-path interface and draining
Interface；
Described circuit interface is for providing working power to described oxygenerator；Described air-path interface and described oxygen
Second outfan of throughput monitoring means connects, and is used for receiving oxygen and setting to storage oxygen equipment and/or pressure oxygen
The described oxygen of standby conveying；Described drainage interface is connected with the second outfan of described heat radiation drying unit, uses
In the hydrops discharged in described heat radiation drying unit.
Further, the operating display being connected with described control unit is also included.
The present invention also provides for a kind of frequency conversion type height above sea level self adaptation swing adsorption oxygen generation method, utilizes above-mentioned
Arbitrary described frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen is carried out, and described method includes as follows
Step:
1) described air compression unit extract from external environment air carry out filter compression, obtain compression sky
Gas, and by the input of described compressed air to described heat radiation drying unit；
2) described heat radiation drying unit receives described compressed air and carries out described compressed air at except water
Reason, obtains described dry compressed air, and by the input of described dry compressed air to described pressure transducer
With described oxygen absorbing unit processed；
3) it is dried compressed-air actuated force value described in described pressure sensor monitoring, and described force value is passed
Deliver to described control unit；
4) described control unit receives described force value, and described force value is carried out with the first predetermined threshold value
Relatively, when described force value is less than described first predetermined threshold value, described control unit is to described converter
Transmission control signal improves described air compression unit operating frequency until described force value and first presets threshold
It is worth identical；
5) after described force value is identical with the first predetermined threshold value, described oxygen absorbing unit processed is dried described
Compressed air carries out nitrogen adsorption, obtains oxygen.
The frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen of present invention offer and method for producing oxygen through, pass through
The compressed air pressure of pressure sensor monitoring entrance oxygen absorbing unit processed, the most compressed-air actuated air inflow,
And this pressure is transferred to control unit in the way of the signal of telecommunication, control unit is by compressed-air actuated force value
The first predetermined threshold value stored with self compares, and when force value is less than the first predetermined threshold value, controls
Unit to converter transmission frequency raise signal make converter drive air compression unit with high-frequency operation,
So that air compression unit can extract more air capacities with satisfied the purest with oxygen to oxygen making amount from the external world
The design objective requirement of degree.
Accompanying drawing explanation
Fig. 1 is the frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen module diagram of the present invention；
Fig. 2 is the structural representation of interface board in the present invention；
Fig. 3 is the flow chart of the frequency conversion type height above sea level self adaptation swing adsorption oxygen generation method of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, implement below in conjunction with the present invention
Accompanying drawing in example, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that
Described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on the present invention
In embodiment, the institute that those of ordinary skill in the art are obtained under not making creative work premise
There are other embodiments, broadly fall into the scope of protection of the invention.
Fig. 1 is the frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen module diagram of the present invention.Please
With reference to Fig. 1, the frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen of the present invention includes that air compression is single
Unit 1, heat radiation drying unit 2, oxygen absorbing unit 3 processed, pressure transducer 4, control unit 5 and frequency conversion
Device 6；First outfan 11 of air compression unit 1 and the first input end 22 of heat radiation drying unit 2
Connect, the first outfan 21 of heat radiation drying unit 2 and the first input end 32 of oxygen absorbing unit 3 processed
Connecting, air compression unit 1 is compressed filtering for extracting air the air to extraction from air；
The input 42 of pressure transducer 4 is connected with the first outfan 21 of heat radiation drying unit 2, and pressure passes
The outfan 41 of sensor 4 is connected with the first input end 52 of control unit 5；The input of converter 6
62 are connected with the first outfan 51 of control unit 5, and the outfan 61 of converter 6 is single with air compression
The first input end 12 of unit 1 connects, and converter 6 is for changing the operating frequency of air compression unit 1；
Pressure transducer 4 enters the force value of 3 air in oxygen absorbing unit processed for monitoring, and force value is passed
It is handed to control unit 5；Control unit 5 is used for when force value is less than the first predetermined threshold value to converter 6
Send control signal, so that converter 6 improves the operating frequency of air compression unit 1.
Air compression unit 1 is for extracting the air in the external world and being compressed generating pressure to the air of extraction
Contracting air, compressed air is after air compression unit 1 exports, and input heat radiation under pressure is dried single
Unit 2, in heat radiation drying unit 2, compressed air can be cooled condensation through the steam therein that dispels the heat
Cheng Shui, after the rotating separation device in heat radiation drying unit 2 processes, moisture can complete to be centrifuged with gas
Separate, thus obtain dried compressed air.Dried compressed air is defeated from heat radiation drying unit 2
Entering oxygen absorbing unit 3 processed after going out, the molecular sieve in oxygen absorbing unit 3 processed is touching with pressure
After dried compressed air, dried compressed air can be carried out nitrogen adsorption, and then obtain oxygen.
Owing to the molecular sieve of absorption nitrogen is at various pressures for the absorbability difference of nitrogen, only enter
After entering the requirement that the air pressure of molecular sieve reaches certain, molecular sieve just can complete the absorption to nitrogen.Cause
And under different height above sea levels, in order to meet the demand of oxygen making amount, for entering oxygen absorbing unit 3 processed
Compressed-air actuated air inflow need to be adjusted such that it reaches the absorption demand of molecular sieve.The present invention's
Oxygenerator can be applicable to the highlands of various height above sea level, is needed by the pressure of the nitrogen adsorption of molecular sieve
Asking and limit as to the compressed-air actuated pressure entering oxygen absorbing unit 3 processed, this pressure is current molecular
Sieve can complete the optimal compression air inlet amount of nitrogen adsorption, the first the most above-mentioned predetermined threshold value.Typically
, when any height above sea level that height above sea level is 0-5000m, this first predetermined threshold value is
0.22-0.23MPa, this first predetermined threshold value can be manually set and be stored in control unit 5.
When the oxygenerator of the present invention is after completing air compression, drying steps, and pressure transducer 4 can be right
The dried compressed air in oxygen absorbing unit 3 processed will be entered and carry out pressure detecting, and by this pressure
The concrete outcome of detection is transferred to control unit 5 in the way of the signal of telecommunication, and now control unit 5 can will connect
The force value received compares with the first predetermined threshold value being stored therein in, when the force value received is low
When the first predetermined threshold value, control unit 5 can transmit, to converter 6, the signal that frequency raises, so that
Converter 6 drives air compression unit 1 to work with higher supply frequency, so that air compression unit 1
More air can be extracted from the external world to reach the first requirement presetting pre-threshold value within the unit interval.Equally
, when the force value received is higher than the first predetermined threshold value, control unit 5 can be transmitted to converter 6
The signal that frequency reduces, so that converter 6 drives air compression unit 1 to work with relatively low supply frequency,
Thus the first requirement presetting pre-threshold value can be reached again while reducing air compression unit 1 energy consumption.
The frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen of the present invention is applicable to different altitude height
Highlands, enters the air supply in oxygen absorbing unit 3 processed by monitoring and adjusts air compression list
The rate of air sucked in required of unit's air to external world, thus meet binding molecule under different altitude height and sieve for nitrogen
Optimal adsorption ability, and the finally oxygen demand processed under optimum energy consumption is issued at current altitude.
Further, in order to meet oxygen demand processed further, oxygen flow monitoring means 7 and oxygen are also included
Gas purity monitoring means 8, the input 72 of oxygen flow monitoring means 7 and oxygen purity monitoring means 8
Input 82 oxygen output 31 with oxygen absorbing unit 3 processed respectively be connected, oxygen flow monitoring is single
Unit's first outfan 71 of 7 and the second input 522 of control unit 5 connect, oxygen purity is monitored
The outfan 81 of unit 8 and the 3rd input 533 of control unit 5 connect.
Above-mentioned oxygen flow monitoring means 7 can be used in carrying out the oxygen of oxygen absorbing unit 3 processed output
Flow monitoring also feeds back to control unit 5, and oxygen purity monitoring means 8 can be used in inhaling oxygen processed
The oxygen of coupon unit 3 output carries out purity monitoring and feeds back to control unit 5.Can think, oxygen processed
Absorbing unit 3 also includes a nitrogen outfan (not shown), and this nitrogen outfan can be used in
When molecular sieve to nitrogen adsorption saturated time, by blood pressure lowering process make absorption nitrogen desorption over a molecular sieve
Emit, thus meet recycling of molecular sieve.It should be noted that the present invention is not limiting as system
The number of the molecular sieve tower in oxygen absorbing unit 3.
Further, also include: making oxygen driver element 9, the input of making oxygen driver element 9
End 92 is connected with the second outfan 511 of control unit 5, the outfan of making oxygen driver element 9
91 are connected with the second input 322 of oxygen absorbing unit 3 processed, and making oxygen driver element 9 is used for changing
The oxygen running parameter processed of oxygen absorbing unit 3 processed.Compressed air after the drying meets molecular sieve to nitrogen
After adsorptive pressure, in order to more accurately control flow and the purity of output oxygen, it is also possible to controlling
Unit 5 stores oxygen flow threshold value and oxygen purity threshold value, when oxygen flow monitoring means 7 and oxygen
The instantaneous value that purity monitoring means 8 feeds back to control unit 5 and oxygen flow threshold value and oxygen purity threshold value
When not mating, control unit 5 can carry out signal transmission to making oxygen driver element 9, makes oxygen processed
The running parameter of oxygen absorbing unit 3 processed is adjusted by Flow driving unit 9, such as during the absorption of nitrogen
Between, the desorption time of nitrogen and equal pressure time etc., until current oxygen flow divides with oxygen purity
Do not match with the oxygen flow threshold value being stored in control unit 5 and oxygen purity threshold value.
It is envisioned that when the running parameter of oxygen absorbing unit 3 processed is entered by making oxygen driver element 9
Row sum-equal matrix makes, it is more likely that the dried compressed-air actuated pressure entering oxygen absorbing unit 3 processed is also subject to
Impact, now, pressure transducer 4 also needs to perform pressure monitoring task thus meets the first predetermined threshold value
Demand.Therefore, the frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen of the present invention can be in different seas
The highlands of degree of lifting normally works, and guarantees that current oxygen making amount and oxygen purity reach design objective
Requirement.
In one embodiment, making oxygen driver element 9 includes motor, passes through motor
The running parameter of oxygen absorbing unit processed is adjusted in real time.Motor is used for driving oxygen absorbing unit processed
3 carry out gas distribution, it is achieved in oxygen absorbing unit 3 processed, the oxygen nitrogen of adsorbent of molecular sieve separates.
Further, air compression unit 1 includes air pump and filter, the outfan of filter and air pump
Input connect, filter is for filtering the air that air pump extract from air, and air pump is used for described
The air of extraction is compressed.Air pump is for extracting air from air, and presses the air of extraction
Contracting.Air pump in the present invention allows for working normally operating under the control of converter.Preferably
, the air pump of the present invention can select vortex air pump.
Further, heat radiation drying unit 2 includes radiator and the rotary separator interconnected.Heat radiation
Device is connected with the outfan of air compression unit, for dispelling the heat compressed air, is carried out by cooling
One-level cooling water separates.Rotary separator is connected with radiator outfan, for two grades of gas-water separation,
Complete compressed-air actuated being dried except water processes eventually.
Further, heat radiation the first outfan 21 of drying unit 2, oxygen absorbing unit 3 processed first defeated
The input 42 entering end 32 and pressure transducer 4 is connected by threeway.By the connected mode of threeway,
Disclosure satisfy that pressure transducer 4 is for being dried compressed-air actuated real-time prison from heat radiation drying unit 2 output
Survey, it is preferred that can be positioned close to threeway the side of oxygen absorbing unit 3 processed, such as, inhale from oxygen processed
Coupon unit 3 about 20cm, this setting ensure that pressure transducer 4 to monitor the most accurately will enter system
Dried compressed air pressure in oxygen absorbing unit 3, it is to avoid due to heat radiation drying unit 2 and oxygen processed
The pressure error that between absorbing unit 3, pipeline impurity etc. are likely to result in.
Further, interface board is also included.Fig. 2 is the structural representation of interface board in the present invention, please join
Examine Fig. 2.Interface board includes circuit interface a, air-path interface b and drainage interface c；Circuit interface a is used for
Working power, air-path interface b is provided to connect with the second outfan of oxygen flow monitoring means 7 to oxygenerator
Connect, be used for receiving oxygen and to storage oxygen equipment and/or pressure oxygen equipment conveying oxygen；Drainage interface c and heat radiation
Second outfan of drying unit 2 connects, for discharging the hydrops in heat radiation drying unit 2.
In order to avoid in oxygenerator, pipeline is the most loaded down with trivial details, can arrange an interface board in oxygenerator, this connects
Oralia has been specifically designed to oxygenerator and extraneous input and output.Circuit interface a can carry for oxygenerator
Guaranteeing the properly functioning of oxygenerator for working power, ground terminal a1, power supply including electrical safety are defeated
Enter with electric connector a2 and the electric connector a3 of power supply transfer output；Air-path interface b is that oxygen output is fast to be inserted
Interface, it is possible to be connected with the second outfan of oxygen flow monitoring means, complete the output of oxygen.Draining connects
Mouth c can be connected with heat radiation drying unit 2, is used for collecting and discharge compressed air in radiating and cooling and rotation
Turn produced moisture after separating, including cooling down draining and separating draining conversion knob c1 and the fast grafting of draining
Mouth c2.
Further, the operating display 10 being connected with control unit 5 is also included.Operating display 10 energy
Enough it is easy to user operation, such as, can complete for the first predetermined threshold value, oxygen flow threshold value and oxygen pure
The setting of degree threshold value and input are so that it is stored in control unit 5, it is also possible to complete pressure transducer 4
Can to enter dry compressed air pressure, current oxygen flow and oxygen purity in oxygen absorbing unit 3 processed
Depending on changing, it is simple to the duty of the current oxygenerator of user's more intuitive understanding.Preferably, this operation shows
Display screen can be touch screen, and the startup and shutdown of equipment can also be carried out by this operating display.
The frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen simple in construction of the present invention, it is simple to operation.
Pressure is carried out to entering the force value being dried compressed air pressure in oxygen absorbing unit processed by pressure transducer
Monitoring and adjustment, thus meet the normal running conditions of oxygenerator under different altitude height, make nitrogen molecule
Sieve meets the absorption to nitrogen under the conditions of can being in optimal adsorption, and then can be prepared in highlands
To oxygen, therefore the present invention the western field emergency medical rescue of highlands, field medicine treatment and
Altitude sickness prevention, alleviate and have broad application prospects with the aspect such as treatment.
Fig. 3 is that the flow process of frequency conversion type height above sea level self adaptation swing adsorption oxygen generation method embodiment of the present invention is shown
It is intended to.As it is shown on figure 3, the method for producing oxygen through that the present embodiment provides is to utilize above-mentioned oxygenerator to carry out,
Including:
S101: air compression unit extracts air from external environment to carry out filtering compression, obtains compression sky
Gas, and compressed air is inputted to the drying unit that dispels the heat.
Specifically, it with a supply frequency extraction air and is carried out from external environment by air compression unit
Filter compression, obtain compressed air, therefore make at pressure owing to compressed air now has certain pressure
Under with, compressed air can flow to the drying unit that dispels the heat after flowing out from air compression unit.
The air that filter in the air compression unit of the present invention can extract to external world filters, and
Finally give impurity particle diameter less than or equal to 10 μm, impurity content less than or equal to 0.5mg/m3Have
The air of certain cleannes.
S102: heat radiation drying unit receives compressed air and carries out compressed air, except water processes, being done
Dry compressed air, and by the input of dry compressed air to pressure transducer and oxygen absorbing unit processed.
After compressed air enters heat radiation drying unit, the radiator in heat radiation drying unit can be to compression sky
Gas carries out cooling process so that it is in part water vapor condensation be water, and then heat radiation drying unit in rotation
Turn separator can water be separated, thus the dry compressed air after obtaining except water.This is dried compression sky
Gas continues to be flowed to pressure transducer and oxygen absorbing unit processed by heat radiation drying unit under pressure.
S103: pressure sensor monitoring is dried compressed-air actuated force value, and is sent to force value control
Unit.
After pressure transducer receives dry compressed air, this dry compressed air can be carried out pressure detecting,
And this testing result is fed back to control unit.
S104: control unit receives force value, and force value is compared with the first predetermined threshold value, when
When force value is less than the first predetermined threshold value, control unit improves air compression to converter transmission control signal
Cell operation frequency is until force value is identical with the first predetermined threshold value.
First predetermined threshold value is that the molecular sieve in oxygen absorbing unit processed can be to sky under current oxygen environment processed
Nitrogen in gas carries out the force value of normal sorption.When oxygen environment processed is the environment and sky that height above sea level is higher
When gas is thin, the force value that pressure transducer detects can be less than this first predetermined threshold value, say, that
Current dry compressed-air actuated air inflow cannot meet the adsorption conditions that nitrogen is adsorbed by molecular sieve,
Now cannot be normally carried out making oxygen.The force value that the most once pressure transducer detects is less than first
During predetermined threshold value, control unit can export control signal, controls converter and improves the confession of air compression unit
Electricity supply frequency, thus improve compressed air require until the force value and first that detects of pressure transducer
Predetermined threshold value is identical.
S105: after force value is identical with the first predetermined threshold value, oxygen absorbing unit processed is to dry compressed air
Carry out nitrogen adsorption, obtain oxygen.
After force value is identical with the first predetermined threshold value, say, that now enter in oxygen absorbing unit processed
It is dried compressed-air actuated flow to mate with the pressure parameter of molecular sieve adsorption nitrogen under current altitude, point
Son sieve can carry out nitrogen adsorption to the dry compressed air entering it normally, thus completes the system of oxygen
Standby enrichment.
The frequency conversion type height above sea level self adaptation swing adsorption oxygen generation method that the present invention provides, it is possible to adapt to difference
The application scenario requirement that height above sea level atmospheric density (or claiming atmospheric pressure) changes, carries for oxygen absorbent module processed
For the air inflow of relative constancy, so that the oxygen processed that oxygenerator is not affected by height above sea level when reaching design refers to
Mark, thus solve oxygenerator oxygen absorbent module admission pressure and change cause oxygen processed with height above sea level change
The problem that machine is difficult to can normally work in different height above sea levels.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to foregoing embodiments, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, and
The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen, it is characterised in that including: empty
Gas compression unit, heat radiation drying unit, oxygen absorbing unit processed, pressure transducer, control unit and frequency conversion
Device；
First outfan of described air compression unit connects with the first input end of described heat radiation drying unit
Connecing, the first outfan of described heat radiation drying unit is connected with the first input end of described oxygen absorbing unit processed,
Described air compression unit is for extracting air and being compressed the air of described extraction from air
Filter；
The input of described pressure transducer is connected with the first outfan of described heat radiation drying unit, described
The outfan of pressure transducer is connected with the first input end of described control unit；
The input of described converter is connected with the first outfan of described control unit, described converter
Outfan is connected with the first input end of described air compression unit, and described converter is used for changing described sky
The operating frequency of gas compression unit；
Described pressure transducer enters the force value of air in described oxygen absorbing unit processed for monitoring, and will
Described force value is transferred to described control unit；
Described control unit is for sending to described converter when described force value is less than the first predetermined threshold value
Control signal, so that described converter improves the operating frequency of described air compression unit.
Oxygenerator the most according to claim 1, it is characterised in that also include: oxygen flow is monitored
Unit and oxygen purity monitoring means, the input of described oxygen flow monitoring means and oxygen purity monitoring
The input of unit oxygen output with described oxygen absorbing unit processed respectively is connected, and described oxygen flow is supervised
Second input of the first outfan and described control unit of surveying unit connects, and described oxygen purity is monitored
The outfan of unit and the 3rd input of described control unit connect.
Oxygenerator the most according to claim 2, it is characterised in that also include: making oxygen drives
Unit, the input of described making oxygen driver element is connected with the second outfan of described control unit,
The outfan of described making oxygen driver element is connected with the second input of described oxygen absorbing unit processed；
Described making oxygen driver element is for changing the oxygen running parameter processed of described oxygen absorbing unit processed.
Oxygenerator the most according to claim 3, it is characterised in that described making oxygen driver element
Including motor.
Oxygenerator the most according to claim 1, it is characterised in that described air compression unit includes
Air pump and filter, the outfan of described filter is connected with the input of described air pump, described filter
For filtering the air that described air pump extracts from air, described air pump is for entering the air of described extraction
Row compression.
Oxygenerator the most according to claim 1, it is characterised in that described heat radiation drying unit includes
The radiator interconnected and rotary separator.
Oxygenerator the most according to claim 1, it is characterised in that the of described heat radiation drying unit
One outfan, the described first input end of oxygen absorbing unit processed and the input of described pressure transducer pass through
Threeway connects.
Oxygenerator the most according to claim 1, it is characterised in that also include interface board, described in connect
Oralia includes circuit interface, air-path interface and drainage interface；
Described circuit interface is for providing working power to described oxygenerator；Described air-path interface and described oxygen
Second outfan of throughput monitoring means connects, and is used for receiving oxygen and setting to storage oxygen equipment and/or pressure oxygen
The described oxygen of standby conveying；Described drainage interface is connected with the second outfan of described heat radiation drying unit, uses
In the hydrops discharged in described heat radiation drying unit.
9. according to the arbitrary described oxygenerator of claim 1-8, it is characterised in that also include and described control
The operating display that unit processed connects.
10. a frequency conversion type height above sea level self adaptation swing adsorption oxygen generation method, it is characterised in that utilize
The arbitrary described frequency conversion type height above sea level self adaptation pressure swing adsorption oxygen of claim 1-9 is carried out, described
Method comprises the steps:
1) described air compression unit extract from external environment air carry out filter compression, obtain compression sky
Gas, and by the input of described compressed air to described heat radiation drying unit；
2) described heat radiation drying unit receives described compressed air and carries out described compressed air at except water
Reason, obtains described dry compressed air, and by the input of described dry compressed air to described pressure transducer
With described oxygen absorbing unit processed；
3) it is dried compressed-air actuated force value described in described pressure sensor monitoring, and described force value is passed
Deliver to described control unit；
4) described control unit receives described force value, and described force value is carried out with the first predetermined threshold value
Relatively, when described force value is less than described first predetermined threshold value, described control unit is to described converter
Transmission control signal improves described air compression unit operating frequency until described force value and first presets threshold
It is worth identical；
5) after described force value is identical with the first predetermined threshold value, described oxygen absorbing unit processed is dried described
Compressed air carries out nitrogen adsorption, obtains oxygen.
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