CN107298432A - Piston type molecular sieve oxygen generating system - Google Patents
Piston type molecular sieve oxygen generating system Download PDFInfo
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- CN107298432A CN107298432A CN201710400491.2A CN201710400491A CN107298432A CN 107298432 A CN107298432 A CN 107298432A CN 201710400491 A CN201710400491 A CN 201710400491A CN 107298432 A CN107298432 A CN 107298432A
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- piston
- molecular sieve
- valve
- feed bin
- piston cylinder
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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
-
- 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
- C01B2210/0028—Separation of the specific gas from gas mixtures containing a minor amount of this specific gas
-
- 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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- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
Piston type molecular sieve oxygen generating system, it is characterised in that：System includes piston cylinder, piston, piston drive mechanism and control system；Piston cylinder bottom is feed bin, molecular sieve is set in feed bin, piston cylinder is symmetrical arranged many discharge nitrogen with feed bin bonding pad and is passed through the air intake branch of air, air intake branch is connected and is connected with air inlet endless tube, air inlet endless tube is connected and is connected with inlet manifold and nitrogen discharging tube respectively, it is provided with inlet manifold on intake valve, nitrogen discharging tube and denitrogen valve is installed；Pressure sensor is installed in the cylinder of piston cylinder Yu feed bin bonding pad, pressure sensor is connected with control system；Bin bottom below molecular sieve sets deoxygenation valve, piston is installed in piston cylinder, piston controls piston driver driving it is reciprocatingly moved in piston cylinder by control system, movement, translational speed, stopping and the intake valve of the pressure control piston in piston cylinder that control system is measured always according to pressure sensor, denitrogen valve, the opening and closing of deoxygenation valve.
Description
Technical field
The present invention relates to piston type molecular sieve oxygen generating system, it is adaptable to the smaller occasion of oxygen making amount, belongs to oxygenerating technology
Field.
Background technology
The method for producing oxygen through that modern times are commonly used includes：Deep Cooling Method, molecular sieve pressure swing adsorption method, embrane method and Wei Baiqing Magneto separate
Method, the method for producing oxygen through most saved is Wei Baiqing magnetic separation method, but magnetic separation method can not also accomplish industrialization, and Deep Cooling Method can not
Accomplish miniaturization and low energy consumption, embrane method oxygen can accomplish miniaturization, but cost and energy consumption still can drop；The present invention is exactly
The miniaturization researched and developed to disadvantages described above, low energy consumption, low noise, the office for not needing recirculated water and home-use oxygen generation system are striven, its
Have great benefit to the injury of human body and enhancing resistance of human body to reducing haze, thus fill up domestic external enwergy miniaturization, it is low
Cost, low energy consumption, the blank of low noise oxygenerator.
The principle of molecular sieve omnibus control system：Molecular sieve flows into the sky of molecular sieve when air pressurized to pressure is P1
Gas, nitrogen is by molecular sieve adsorption under P1 pressure, and oxygen is not adsorbed then and flows through molecular sieve and be collected into oxygen rich gas, so
The molecular sieve of nitrogen has been adsorbed afterwards to desorb under negative pressure P2, and with the backwash of a little oxygen rich gas with activated molecular sieve, so that
Recover the suction nitrogen ability of molecular sieve；But existing molecular sieve pressure swing adsorption method is using air compressor machine to gas pressurized, it is impossible to accomplish small
Type and low energy consumption, and noise is very big, and recirculated water is needed, and unsuitable family oxygen supply at all is used.The content of the invention
The purpose of the present invention be for existing molecular sieve omnibus control system high energy consumption and equipment it is huge and a kind of utilize is provided
Drive piston mobile so as to reaching the piston type point of energy-conservation purpose to the gas pressurized in piston cylinder and decompression in piston cylinder
Sub- sieve oxygen generation system, MSOGS.
Technical key point：
（1）Using piston driver driving piston in the pressure that piston cylinder compressed air is formed come instead of existing pressure-variable adsorption
Air compressor machine in oxygen technique processed is to gas pressurized and vacuum pumping negative pressure, and power of motor is small, energy consumption is low.
（2）Piston driver is controlled using control system, piston is moved in piston cylinder to close to piston cylinder bottom,
With air in compression piston cylinder, after the air in piston cylinder reaches certain pressure P1, control system control automatically opens up deoxygenation
The aperture of valve is K1, so that the compressed air in piston cylinder is after oxygen molecular sieve absorption nitrogen processed, is flowed out from deoxygenation valve, and
And using control system control piston driver always stable plunger cylinder compressed air pressure be P1, until in piston cylinder
Compressed air is all discharged after oxygen molecular sieve absorption nitrogen processed from deoxygenation valve.
（3）After oxygen molecular sieve absorption nitrogen processed, piston driver is controlled using control system, makes piston in piston cylinder
Moved to away from piston cylinder bottom, so that the gas formation negative pressure in piston cylinder, when gas negative pressure reaches P2 in piston cylinder, inhales
Nitrogen in the oxygen molecular sieve processed of attached nitrogen is desorbed under negative pressure P2, now, and control system control automatically opens up deoxygenation valve
Aperture is K2, returns to the oxygen rich gas part of oxygen-enriched gas storage tank and oxygen molecular sieve processed is activated in oxygen molecular sieve processed.
（4）Piston driver includes：（A）Spiro driving device,（B）Gravity driving device,（C）Gear device,
（D）Ellipse wheel drive unit,（E）Fluid pressure drive device,（F）Crank driven mechanism.
The technical scheme that the present invention is used to achieve the above object of the invention：
Piston type molecular sieve oxygen generating system, it is characterised in that：
1st, oxygen generation system includes piston cylinder, piston, piston drive mechanism and control system；The piston cylinder bottom is feed bin, material
Molecular sieve is set in storehouse, and piston cylinder is symmetrical arranged many discharge nitrogen with feed bin bonding pad and is passed through the air intake branch of air, enters
Gas branch pipe is connected and is connected with air inlet endless tube, and air inlet endless tube is connected and is connected with inlet manifold and nitrogen discharging tube respectively,
It is provided with inlet manifold on intake valve, nitrogen discharging tube and denitrogen valve is installed；It is provided with the cylinder of piston cylinder with feed bin bonding pad
Pressure sensor, pressure sensor is connected with control system；Bin bottom below molecular sieve sets deoxygenation valve, the piston
Piston is installed, piston controls piston driver driving it is reciprocatingly moved in piston cylinder, controlled by control system in cylinder
Movement, translational speed, stopping and the air inlet for the pressure control piston in piston cylinder that system processed is measured always according to pressure sensor
Valve, denitrogen valve, the opening and closing of deoxygenation valve.
2nd, piston type molecular sieve swing adsorption oxygen generating system using control system control piston driver drive piston to
Lower movement, makes piston be moved in piston cylinder to close to piston cylinder bottom, with air in compression piston cylinder, when the sky in piston cylinder
Gas reaches after certain pressure P1 that the aperture that control system controls to automatically open up deoxygenation valve is K1, so that the compression in piston cylinder
Air flows out after oxygen molecular sieve absorption nitrogen processed from deoxygenation valve, and is driven using control system control piston driver
The speed that piston is moved down, the pressure that stable plunger cylinder compressed air is controlled always is P1, until being compressed in piston cylinder
Air is all discharged after oxygen molecular sieve absorption nitrogen processed from deoxygenation valve.
3rd, after oxygen molecular sieve absorption nitrogen processed, moved up using control system control piston driver driving piston,
Piston is set to be moved in piston cylinder to away from piston cylinder bottom, so that the gas formation negative pressure in piston cylinder, when gas in piston cylinder
When body negative pressure reaches P2, the nitrogen in the oxygen molecular sieve processed of absorption nitrogen is desorbed under negative pressure P2, now, control system control
The aperture for automatically opening up deoxygenation valve is K2, returns to the oxygen rich gas part of oxygen-enriched gas storage tank and oxygen processed is activated in oxygen molecular sieve processed
Molecular sieve, or the aperture that control system controls to automatically open up material bottom valve is K3, admits air into oxygen molecular sieve processed to rinse
The nitrogen that oxygen molecular sieve surface processed has been desorbed；Wherein P1 is the critical pressure of oxygen molecular sieve absorption nitrogen processed, and P2 is oxygen molecule processed
The minimum pressure of sieve desorption nitrogen.
4th, the bonding land between piston cylinder bottom and feed bin, is provided with the air intake branch of air inlet and nitrogen discharge,
Make the molecular sieve and filter layer of air inlet and nitrogen discharge not by feed bin, speed is fast, resistance is small, but also do not allow quick stream
Dynamic air-flow abrasion molecular sieve and filtering layered material, to extend the service life of molecular sieve and filtering layered material.
5th, the PLC or CPU of control system or controller control piston driver are to control piston to move up or downwards
Mobile speed, and coordinate the pressure of piston gas in the jar, to drive piston in air-breathing, oxygen processed, desorption, denitrogen Four processes
The different moving directions in each stage and different translational speeds are moved back and forth, so as to realize molecular sieve adsorption nitrogen and desorption nitrogen
Particular/special requirement, finally realize the purpose of efficient oxygen producing.
6th, the bottom of piston cylinder is feed bin, and the air inlet branch for having multiple input airs is symmetrically made in the bottom surrounding of piston cylinder
Pipe, air intake branch is connected through feed bin outer wall with the air inlet endless tube outside feed bin, and air inlet endless tube is installed around feed bin, enters compression ring
Pipe is connected with inlet manifold, and an intake valve is provided with inlet manifold, and intake valve is magnetic valve or motor-driven valve etc., works as air inlet
When valve is opened, air can enter directly into the top area of feed bin under exogenetic process by air intake branch, enter compression ring
A denitrogen valve is also equipped with pipe, denitrogen valve is magnetic valve or motor-driven valve etc., and when denitrogen valve is opened, molecular sieve adsorption is simultaneously desorbed
Nitrogen afterwards can be discharged by piston pressure through air intake branch and air inlet endless tube into denitrogen valve.
7th, the bottom of feed bin is infundibulate, and the centre of bin bottom is the leak of funnel, there is sieve between leak and feed bin
Net is separated by, and falls to prevent the molecular sieve in feed bin, is provided with a feed bin blast pipe in leak, feed bin blast pipe lower end is provided with
One deoxygenation valve, deoxygenation valve is electric control valve, and a material bottom valve is provided with the left of deoxygenation valve.
8th, control system is connected by signal wire and denitrogen valve, intake valve, deoxygenation valve and material bottom valve, and control denitrogen valve,
Intake valve, deoxygenation valve and opening and closing and the aperture for expecting bottom valve.
9th, the top of feed bin be equipped with filter layer, filter layer be activated alumina or other can adsorb moisture in air and two
The equimolecular filter layer of carbonoxide, the middle and lower part of feed bin is equipped with molecular sieve, and molecular sieve is the special oxygen molecular sieve processed of pressure-variable adsorption, mistake
There is one layer of screen cloth covering on filtering layer, to protect the material of filter layer not move.
10th, piston driver includes：
（A）Spiro driving device：The centre of piston upper surface installs a screw rod, and screw rod is with piston by thrust bearing or bulb
Deng connection, make screw rod rotation without band piston rotation, screw sleeve is screwed in the screw of a fixed cross frame centre, fixed
Four terminations of cross are fixedly mounted on the upper limb of piston cylinder, and motor is placed in above a mobile cross, mobile cross
Respectively there is a circular hole four terminations, and circular hole is sleeved on four root posts, allow to move cross and are slided up and down along four root posts, and four
The lower end of root post and the upper limb of piston cylinder are connected to a fixed, and there are external gear teeth, the external gear teeth and motor shaft of screw rod in the upper end of screw rod
The gear teeth of wheel are meshed rotation, motor is rotated drive screw rod forward or backwards and rotate forward or backwards, so as to exist with piston
Moved reciprocatingly in piston cylinder.
（B）Gravity driving device：The upper limb of piston cylinder is installed with one electricity of installation on a cross, cross
It is fixedly mounted a wiring in machine, the rotating shaft of motor, the wiring other end is through behind one hole of centre of cross, and on piston
The centre of end face is connected to a fixed, and motor rotation winding bracing wire lifts piston upwards, and then motor stops the rotation, and makes work
Plug is moved downward under gravity, so that piston moves reciprocatingly in piston cylinder.
（C）Gear device：There are a piston top, piston top upper end and pull bar in the top plan center of piston
It is connected by connecting shaft, the upper end of pull bar there are one and half connecting shafts, and one end of half connecting shaft is fixedly mounted on the upper end of pull bar, partly connected
The other end of axle is buckled in the deep-slotted chip breaker of push-and-pull wheel, and deep-slotted chip breaker is located at close to the outer peripheral position of push-and-pull wheel, and deep-slotted chip breaker is one
The arc dead slot of push-and-pull wheel is penetrated, the width of deep-slotted chip breaker matches with half connecting shaft, the arc line length of deep-slotted chip breaker is less than push-and-pull
/ 8th of outer circumference are taken turns, the other end that half connecting shaft penetrates the deep-slotted chip breaker of push-and-pull wheel is provided with a deduction cap, this deduction cap
Diameter be more than deep-slotted chip breaker width, to prevent half connecting shaft from deep-slotted chip breaker deviate from；The excircle of push-and-pull wheel, which makes, the gear teeth, each two
There is a power transmission shaft wheel between push-and-pull wheel, the excircle of power transmission shaft wheel, which makes, there are the gear teeth, the gear teeth and the power transmission shaft wheel of push-and-pull wheel
The gear teeth, which match, to be meshed, and the centre bore of power transmission shaft wheel is fixedly set on power transmission shaft, is passed when power transmission shaft rotate counterclockwise drives
Moving axis wheel rotate counterclockwise, and the push-and-pull wheel dextrorotation for driving the push-and-pull wheel being meshed on the left of power transmission shaft wheel and right side to be meshed
Turn, make half connecting shaft forwards being buckled in push-and-pull wheel deep-slotted chip breaker draw wheel to turn clockwise, so that pull bar is through pull bar and work
The connecting shaft band piston that plug top is connected pumps in piston cylinder.
（D）Ellipse wheel drive unit：There is a piston top in the top plan center of piston, and piston top upper end is consolidated with connecting rod
Fixed to be connected, the upper end of connecting rod is fixedly linked with oval bucket least significant end, and the most significant end of oval bucket is connected with the lower end of gag lever post, spacing
A upper limit plate is cased with the circumferential play of bar, gag lever post is only moved up and down in the endoporus of upper limit plate, even
A lower limiting board is cased with the circumferential play of bar, connecting rod is only moved up and down in the endoporus of lower limiting board, so that
Oval bucket is done vertical up and down motion, oval bucket is horizontal positioned, i.e., the major axis of ellipse bucket into horizontality and with work
The axis of plug and piston cylinder is vertical, is provided with an ellipse wheel post, long axis length and the ellipse of ellipse wheel post oval bucket internal clearance
The short axle of bucket is close, makes the major axis short-axis direction for being placed on oval bucket interior with gap of ellipse wheel post；When the major axis of ellipse wheel post is vertical
During state, upper ellipse wheel post focus toward move to left L distances again toward move up the location point Q, 0≤L of H distances≤（S/4）, 0≤H≤（S/
5）, S is the minor axis length of ellipse wheel post, aperture of the radius for R is provided with centered on Q points, this aperture is exactly ellipse wheel post
Around turn hole, a power transmission shaft is fixed with turn hole in ellipse wheel post, power transmission shaft is turned clockwise the ellipse wheel post of drive around ellipse wheel
Post rotates around turn hole, so that ellipse wheel post long axis direction and with being rotated to around the mutually remote other end termination of turn hole around the lower section of turn hole
When, the short axle lower camber side of top pressure ellipse bucket inwall makes oval bucket move down drivening rod and moved down, and with piston in piston cylinder under
Move, then power transmission shaft, which continues to turn clockwise, drives ellipse wheel post to be rotated around ellipse wheel post around turn hole, so that ellipse wheel post long axis direction
And during with rotating to around the mutually remote other end termination of turn hole around the top of turn hole, cambered surface in the short axle of top pressure ellipse bucket inwall makes
Oval bucket moves up drivening rod and moved up, and is moved up with piston in piston cylinder, and gag lever post and connecting rod limit oval bucket and can only done
Vertical up and down motion, so power transmission shaft turns clockwise the ellipse wheel post of drive around ellipse wheel post around turn hole rotate when, ellipse wheel post outside
Upside or the lower inner surface cambered surface that top pressure oval bucket short-axis direction are pushed in surface, oval bucket and connecting rod is only moved up and down
And moved up and down with piston in piston cylinder.
（E）Fluid pressure drive device：Piston upper surface centre is installed with a pull bar, the upper end of pull bar with
The push-pull mechanism of hydraulic means is connected, and makes the push-pull mechanism of hydraulic means drive pull bar to move up and down, so that with piston
Moved reciprocatingly in piston cylinder.
（F）Crank driven mechanism：There is piston top in the top plan center of piston, piston top upper end and connecting rod by
Piston top is connected with the connecting shaft of connecting rod, and the upper end of connecting rod is connected with bent axle by bent axle with the connecting shaft of connecting rod, and bent axle is with passing
Moving axis be connected, make bent axle around power transmission shaft rotate when, drivening rod moves up and down and makes small end around the connection of bent axle and connecting rod
Axle swing, so that piston pumps in piston cylinder.
11st, when bottom of the piston in piston cylinder, oxygen generation system is started,（A）Control system drives to piston and filled simultaneously
Put and be powered with intake valve, intake valve, which is powered, opens intake valve path, and now denitrogen valve is not powered on being closed, control system
Control piston driver band piston move up so that piston cylinder in formed negative pressure, this negative pressure power by air from
Inlet manifold is entered in piston cylinder through air inlet endless tube and air intake branch, and piston base is moved upwards up to apart from piston cylinder in piston
When bottom is that screen cloth at the top of filter layer is highly H, control system control piston driver makes piston stop moving up, together
When, control system cut-out intake valve power supply makes intake valve close path, and this is breathing process；（B）Now control system control is lived
Plug drive device band piston is moved down, and with moving down for piston, the air pressure P in piston cylinder constantly increases, when
When the pressure of air increases to P1 in piston cylinder, pressure sensor feeds back to control system electric signal, makes control system to deoxygenation
Valve is powered, and makes the aperture of deoxygenation valve for K1, so that the continuous delivery flow of deoxygenation valve is V1 oxygen rich gas, at the same time,
Control system controls the speed that piston driver control piston is moved down to signal, to keep piston cylinder inner air pressure steady
It is set to P1, until piston is moved down into piston cylinder bottom, so as to ensure suction-operated of the molecular sieve to nitrogen in compressed air
And adsorption efficiency, this is oxygen preparation；（C）When piston is moved down into piston cylinder bottom, control system control piston driving
Device band piston is moved up, at the same time, and control system makes air formation negative pressure in piston cylinder to deoxygenation valve is closed, with
Piston and continue up movement, piston cylinder pressure constantly declines, when P2 is arrived in gas pressure reduction in piston cylinder, control
System is K2 to the aperture that deoxygenation valve electric signal opens deoxygenation valve, so that the oxygen rich gas in oxygen-enriched gas storage tank is through deoxygenation valve
Continuously flow velocity using flow as V2 is flowed into molecular sieve and piston cylinder, to ensure that the nitrogen of molecular sieve adsorption is desorbed and rinsed
The activity of molecular sieve activating molecules sieve, K2 is much smaller than V1 much smaller than K1, i.e. V2, at the same time, and control system controls to live to signal
The speed that plug drive device is moved up with piston, to keep molecular sieve and piston cylinder pressure to stabilize to P2, works as work
When plug is moved upwards up to screen cloth of the piston base at the top of piston cylinder bottom i.e. filter layer highly for h, control system control is lived
Plug drive device stop band piston is moved up, and this is desorption process, and desorption process can be lengthened so that molecular sieve solution is sucked
Entirely；（D）Now, control system controls piston driver to move down piston immediately, at the same time, and control system is to denitrogen
Valve, which is powered, opens denitrogen valve path, piston is moved down the nitrogen-rich gas pushed in piston cylinder and is discharged, and recovers molecular sieve
Activity, this be denitrogen process；More than（A）Breathing process,（B）Oxygen preparation,（C）Desorption process,（D）Denitrogen process is one
Oxygen denitrogen process processed, then control system repetition aforementioned four control process, makes molecular sieve constantly produce oxygen rich gas.
12nd, exist（C）In desorption process, when piston is moved down into piston cylinder bottom, control system control piston driving
Device makes piston stop moving down, at the same time, and control system makes in piston cylinder air into negative pressure to deoxygenation valve is closed, with
Piston and continue up movement, piston cylinder pressure constantly declines, when P2 is arrived in gas pressure reduction in piston cylinder, control
System can not also give deoxygenation valve electric signal, but feed bottom valve electric signal opens material bottom valve, bypass air through material bottom valve and enter
Molecular sieve region, is washed into piston cylinder with the nitrogen for ensureing molecular sieve desorption, so that it can maximum limit during denitrogen
Degree ground discharge nitrogen.
13rd, the concentration for producing oxygen rich gas is adjustable, and the concentration for producing oxygen rich gas is determined by pressure P1 and aperture K1, pressure
P1 is bigger, aperture K1 is smaller, and oxygen rich gas concentration is bigger, and the concentration of oxygen rich gas can reach 99%；Conversely, pressure P1 is got over
It is small（But the critical pressure of oxygen molecular sieve absorption nitrogen processed can not be less than）, aperture K1 it is bigger, oxygen rich gas concentration is smaller.
14th, increase piston cylinder bore and piston cylinder height ratio, can reduce the total height of apparatus of the present invention.
15th, apparatus of the present invention list covering device oxygen is intermittent deoxygenation, if equipped with two sets of apparatus of the present invention, then can be formed
Continuous oxygen generation deoxygenation.
16th, apparatus of the present invention can also be used for molecular sieve pressure-variable adsorption and produce other gases.
17th, the present apparatus piston cylinder and feed bin can be made it is split type, to reduce device total height.
The present invention has advantages below compared with prior art：
1st, apparatus of the present invention drive the pressure of piston compressed gas formation in piston cylinder come instead of existing using piston driver
There is the air compressor machine in omnibus control system to gas pressurized, therefore, its energy consumption is small, and noise is low.
2nd, apparatus of the present invention compact, simple in construction, high using flexible, reliable and stable, oxygen generation efficiency, can be widely used for
Office, house etc. are used.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the embodiment of the present invention；
Fig. 2 is A-A diagrammatic cross-sections in embodiment illustrated in fig. 1；
Fig. 3 is B-B diagrammatic cross-sections in embodiment illustrated in fig. 1；
Fig. 4 is E amplification signals in embodiment illustrated in fig. 1.
In Fig. 1-4：1st, denitrogen valve, 2, feed bin, 3, feed bin blast pipe, 4, air inlet endless tube, 5, air intake branch, 6, molecule
Sieve, 7, filter layer, 8, piston, 9, piston cylinder, 10, intake valve, 11, connector, 12, pull bar, 13, piston cylinder top,
14th, deoxygenation valve, 15, oxygen-enriched gas storage tank, 16, material bottom valve, 17, inlet manifold, 18, pressure sensor, 19, signal wire.
Embodiment
In the embodiment shown in Fig. 1-4：Piston type molecular sieve oxygen generating system, when bottom of the piston 8 in piston cylinder 9,
Start oxygen generation system,（A）Control system is powered to piston driver and intake valve 10 simultaneously, and intake valve 10, which is powered, opens air inlet
The path of valve 10, now denitrogen valve 1 be not powered on being closed, control system control piston driver band piston 8 it is upward
Mobile, so that forming negative pressure in piston cylinder 9, this negative pressure power is by air from inlet manifold 17 through air inlet endless tube 4 and air inlet
Branch pipe 5 is entered in piston cylinder 9, and the i.e. top of filter layer 7 in the bottom of 8 distance from bottom piston cylinder of piston 9 is moved upwards up in piston 8
Screen cloth highly be H when, control system control piston driver make piston 8 stop move up, meanwhile, control system cut off into
The power supply of air valve 10 makes intake valve 10 close path, and this is breathing process；（B）Now control system control piston driver drives
Piston 8 is moved down, with moving down for piston 8, and the air pressure P in piston cylinder 9 constantly increases, when empty in piston cylinder 9
When the pressure of gas increases to P1, pressure sensor 18 feeds back to control system electric signal, control system is powered to deoxygenation valve 14,
And make the aperture of deoxygenation valve 14 for K1, so that the continuous delivery flow of deoxygenation valve 14 is V1 oxygen rich gas, at the same time, control
System controls the speed that piston driver control piston 8 is moved down to signal, to keep the inner air pressure of piston cylinder 9 stable
For P1, until piston 8 is moved down into the bottom of piston cylinder 9, so as to ensure suction-operated of the molecular sieve 6 to nitrogen in compressed air
And adsorption efficiency, this is oxygen preparation；（C）When piston 8 is moved down into 9 bottom of piston cylinder, control system control piston drives
Dynamic device band piston 8 is moved up, and at the same time, control system makes air in piston cylinder 9 form negative to deoxygenation valve 14 is closed
Pressure, constantly declines as piston 8 continues up gas pressure in movement, piston cylinder 9, when gas pressure reduction is arrived in piston cylinder 9
During P2, control system is K2 to the aperture that the electric signal of deoxygenation valve 14 opens deoxygenation valve 14, so that in oxygen-enriched gas storage tank 15
Oxygen rich gas is flowed into molecular sieve 6 and piston cylinder 9 through the continuous flow velocity using flow as V2 of deoxygenation valve 14, to ensure molecular sieve 6
The nitrogen of absorption is desorbed and rinses the activity of the activating molecules of molecular sieve 6 sieve 6, and K2 is much smaller than V1 much smaller than K1, i.e. V2, same with this
When, control system controls the speed that piston driver is moved up with piston 8 to signal, to keep molecular sieve 6 and piston
Gas pressure stabilizes to P2 in cylinder 9, when piston 8 is moved upwards up to the bottom of 8 distance from bottom piston cylinder of the piston 9 i.e. top of filter layer 7
Screen cloth when being highly h, control system control piston driver stop band piston 8 is moved up, and this is desorption process, solution
Being drawn through journey can lengthen so that molecular sieve 6 is desorbed completely；（D）Now, control system controls piston driver to make piston 8 immediately
Move down, at the same time, control system is powered to denitrogen valve 1 opens the path of denitrogen valve 1, piston 8 is moved down pushing and lives
Nitrogen-rich gas in plug cylinder 9 are discharged, and recover the activity of molecular sieve 6, and this is denitrogen process；More than（A）Breathing process,（B）
Oxygen preparation,（C）Desorption process,（D）Denitrogen process is an oxygen denitrogen process processed, and then control system repeats aforementioned four control
Process processed, makes molecular sieve 6 constantly produce oxygen rich gas.
（C）In desorption process, when piston 8 is moved down into 9 bottom of piston cylinder, control system control piston driving dress
Putting makes piston 8 stop moving down, at the same time, and control system makes in piston cylinder 9 air into negative pressure to deoxygenation valve 14 is closed,
Constantly decline as piston 8 continues up gas pressure in movement, piston cylinder 9, when P2 is arrived in gas pressure reduction in piston cylinder 9
When, control system can not also give the electric signal of deoxygenation valve 14, but feed bottom valve 16 electric signal opens material bottom valve 16, bypasses air through
Material bottom valve 16 enters the region of molecular sieve 6, to ensure that the nitrogen that molecular sieve 6 is desorbed is washed into piston cylinder 9, so that it is in row
Nitrogen can be discharged during nitrogen to greatest extent.
The concentration for producing oxygen rich gas is adjustable, and the concentration for producing oxygen rich gas is determined by pressure P1 and aperture K1, pressure P1
Bigger, aperture K1 is smaller, and oxygen rich gas concentration is bigger, and the concentration of oxygen rich gas can reach 99%；Conversely, pressure P1 is smaller
（But the critical pressure of oxygen molecular sieve absorption nitrogen processed can not be less than）, aperture K1 it is bigger, oxygen rich gas concentration is smaller.
Claims (10)
1. piston type molecular sieve oxygen generating system, it is characterised in that：Oxygen generation system includes piston cylinder（9）, piston（8）, piston driving
Mechanism and control system；The piston cylinder（9）Bottom is feed bin（2）, feed bin（2）Middle setting molecular sieve（6）, piston cylinder（9）With
Feed bin（2）Bonding pad is symmetrical arranged many discharge nitrogen and is passed through the air intake branch of air（5）, air intake branch（5）With entering compression ring
Pipe（4）It is connected and is connected, air inlet endless tube（4）Respectively with inlet manifold（17）It is connected with nitrogen discharging tube and is connected, air inlet
House steward（17）On intake valve is installed（12）, denitrogen valve is installed on nitrogen discharging tube（1）；In piston cylinder（9）With feed bin（2）Bonding pad
Cylinder in pressure sensor is installed（18）, pressure sensor（18）It is connected with control system；Molecular sieve（6）The feed bin of lower section
Bottom sets deoxygenation valve（14）, the piston cylinder（9）Middle installation piston（8）, piston（8）Piston is controlled to drive by control system
Device driving makes it in piston cylinder（9）Inside reciprocatingly move, control system is always according to pressure sensor（18）The piston cylinder measured
（9）Interior pressure control piston（8）Movement, translational speed, stopping and intake valve（10）, denitrogen valve（1）, deoxygenation valve（14）'s
Opening and closing.
2. piston type molecular sieve oxygen generating system as claimed in claim 1, it is characterised in that：The piston cylinder（9）Bottom be
Feed bin（2）, in piston cylinder（9）Bottom surrounding symmetrically make and have the air intake branches of multiple input airs（5）, air intake branch（5）
Through feed bin（2）Outer wall and feed bin（2）The air inlet endless tube of outside（4）It is connected, air inlet endless tube（4）Around feed bin（2）Install, enter
Compression ring pipe（4）With inlet manifold（17）It is connected, in inlet manifold（17）Upper installation intake valve（10）, in air inlet endless tube（4）Upper peace
Fill denitrogen valve 1.
3. piston type molecular sieve oxygen generating system as claimed in claim 1, it is characterised in that：The feed bin（2）Bottom for leakage
Bucket shape, feed bin（2）The centre of bottom is the leak of funnel, leak and feed bin（2）Between there is screen cloth to be separated by, be provided with leak
A piece feed bin blast pipe（3）, feed bin blast pipe（3）Lower end is provided with a deoxygenation valve（14）, in deoxygenation valve（14）Left side peace
Equipped with a material bottom valve（16）.
4. piston type molecular sieve oxygen generating system as claimed in claim 1, it is characterised in that：The control system by signal wire with
Denitrogen valve（1）, intake valve（10）, deoxygenation valve（14）With material bottom valve（16）It is connected, and controls denitrogen valve（1）, intake valve（10）、
Deoxygenation valve（14）With material bottom valve（16）Opening and closing and aperture.
5. piston type molecular sieve oxygen generating system as claimed in claim 1, it is characterised in that：The feed bin（2）Top be equipped with
Filter layer（7）, filter layer（7）For activated alumina or other can adsorb moisture in air and the equimolecular filtering of carbon dioxide
Layer, feed bin（2）Middle and lower part be equipped with molecular sieve（6）, molecular sieve（6）For the special oxygen molecular sieve processed of pressure-variable adsorption, filter layer（7）On
There is one layer of screen cloth covering.
6. piston type molecular sieve oxygen generating system as claimed in claim 1, it is characterised in that：It is described in piston cylinder（9）Bottom and
Feed bin（2）Between bonding land, the air intake branch of air inlet and nitrogen discharge is installed（5）, arrange air inlet and nitrogen
Put not by feed bin（2）Molecular sieve（6）With filter layer（7）, speed is fast, resistance is small, but also does not allow the air-flow quickly flowed
Wear and tear molecular sieve（6）And filter layer（7）Material, to extend molecular sieve（6）And filter layer（7）The service life of material.
7. piston type molecular sieve oxygen generating system as claimed in claim 1, it is characterised in that：The PLC or CPU of the control system
Or controller controls piston driver to control piston（8）The speed for moving up or moving down, and coordinate piston cylinder（9）
The pressure of interior gas, to drive piston）8（The difference in each stage is mobile in air-breathing, oxygen processed, desorption, denitrogen Four processes
Direction and different translational speeds are moved back and forth, so as to realize molecular sieve（6）The particular/special requirement of absorption nitrogen and desorption nitrogen, finally
Realize the purpose of efficient oxygen producing.
8. piston type molecular sieve oxygen generating system as claimed in claim 1, it is characterised in that：The oxygen generation system produces oxygen rich air
The concentration of body is adjustable, and the concentration for producing oxygen rich gas is determined that pressure P1 is bigger, aperture K1 is smaller by pressure P1 and aperture K1, rich
Oxygen bulk concentration is bigger, and the concentration of oxygen rich gas can reach 99%；Conversely, pressure P1 is smaller（But oxygen molecule processed can not be less than
Sieve the critical pressure of absorption nitrogen）, aperture K1 it is bigger, oxygen rich gas concentration is smaller.
9. piston type molecular sieve oxygen generating system as claimed in claim 1, it is characterised in that：Install in the left side of the deoxygenation valve 23
There is a material bottom valve 27.
10. apparatus of the present invention can also be used for molecular sieve pressure-variable adsorption and produce other gases.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710125720 | 2017-03-05 | ||
| CN2017101257204 | 2017-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107298432A true CN107298432A (en) | 2017-10-27 |
Family
ID=59836242
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710400491.2A Withdrawn CN107298432A (en) | 2017-03-05 | 2017-05-31 | Piston type molecular sieve oxygen generating system |
| CN201710400852.3A Withdrawn CN107176592A (en) | 2017-03-05 | 2017-05-31 | Screw drive piston molecular sieve oxygen generating system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710400852.3A Withdrawn CN107176592A (en) | 2017-03-05 | 2017-05-31 | Screw drive piston molecular sieve oxygen generating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107298432A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110054157A (en) * | 2019-05-12 | 2019-07-26 | 江苏苏航医疗设备有限公司 | A kind of Portable molecular sieve oxygenerator |
| CN111689473A (en) * | 2019-04-29 | 2020-09-22 | 中船重工(海南)工程有限公司 | Wearable oxygen generation clothes |
| CN113321189A (en) * | 2021-05-27 | 2021-08-31 | 杭州知橙生物科技有限公司 | Noiseless negative pressure circulation oxygenerator |
-
2017
- 2017-05-31 CN CN201710400491.2A patent/CN107298432A/en not_active Withdrawn
- 2017-05-31 CN CN201710400852.3A patent/CN107176592A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689473A (en) * | 2019-04-29 | 2020-09-22 | 中船重工(海南)工程有限公司 | Wearable oxygen generation clothes |
| CN110054157A (en) * | 2019-05-12 | 2019-07-26 | 江苏苏航医疗设备有限公司 | A kind of Portable molecular sieve oxygenerator |
| CN113321189A (en) * | 2021-05-27 | 2021-08-31 | 杭州知橙生物科技有限公司 | Noiseless negative pressure circulation oxygenerator |
| CN113321189B (en) * | 2021-05-27 | 2022-04-29 | 永康市优哈电器有限公司 | Noiseless negative pressure circulation oxygenerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107176592A (en) | 2017-09-19 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171027 |
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