A kind of oxygenerator and method for producing oxygen throughTechnical field
The present invention relates to technical field of air separation, and in particular to a kind of oxygenerator and method for producing oxygen through.
Background technology
PSA oxygenerators are favored because of its significant advantage by users, and it is widely used in metallurgical combustion-supporting, changeThe fields such as work, environmental protection, building materials, light industry, aquaculture, biotechnology, sewage disposal.Operation principle：Oxygenerator separates air masterTo be made up of two adsorption towers for filling up molecular sieve, under normal temperature condition, by compressed air by filtering, remove water the purification such as dryEnter adsorption tower after processing, the nitrogen in adsorption tower in air etc. is adsorbed by molecular sieve, and oxygen is obtained in the gas phaseEnrichment, from outlet outflow is stored in oxygen surge tank, and is depressured rapidly in the molecular sieve that another tower has completed absorption, is parsedGo out the composition adsorbed, two tower alternate cycles, you can obtain the cheap oxygen that purity is >=90%.
But there are the following problems for existing oxygenerator：
1st, due to that may use the oxygen of various concentration in production process, and existing oxygenerator can not be to slow from oxygenThe concentration for rushing tank output oxygen is adjusted, and there is the defect of poor universality.
2nd, existing molecular sieve bucket generally existing problems with：Because molecular sieve barrel structure is unreasonable, cause the molecule in bucketSieve can not be fully utilized, and regenerating molecular sieve is too frequent, and therefore service life shorten；Therefore, Application No.CN201620170807.4 utility model discloses shaping staving inside a kind of new-type molecular sieve barrel structure, its molecular sieve stavingAccommodating cavity, molecular sieve staving upper end installing molecular sieve bung, molecular sieve staving bottom opens up air inlet, and molecular sieve bung is openedSet out air port；Setting-in molecular sieve fixing body in staving accommodating cavity, molecular sieve installs body formed at least two molecular sieve and installs chamber,Molecular sieve is embedded in each molecular sieve installation cavity room respectively, molecular sieve fixing body upper end each molecular sieve of correspondence is installed chamber and opened respectivelyIf inlet channel, molecular sieve fixing body bottom each molecular sieve chamber of correspondence opens up outlet passageway, each molecular sieve installation cavity respectivelyRoom bottom is embedded in punching filter respectively；Although the molecular sieve bucket of this structure is so that the utilization rate of molecular sieve is obtained to a certain extentLifting, but there is interval in multiple molecular sieves between installing chamber, in the case where volume is limited, reduce molecular sieve plusEnter amount, there is unreasonable structure and the problem of capacity utilization is low and molecular sieve adsorption effect is also needed to be further improved.
The content of the invention
It is an object of the invention to provide a kind of oxygenerator, it also has rational in infrastructure, capacity utilization high and molecular sieveThe characteristics of advantages of good adsorption effect.
Further, the concentration that oxygen is exported from oxygen surge tank can be adjusted for it, with the good spy of versatilityPoint.
Second object of the present invention is to provide a kind of easy to operate and accurate method for producing oxygen through of control.
To solve the above problems, the technical scheme that first purpose of the present invention is used is as follows：
A kind of oxygenerator, including air compressor, the left adsorption tower and right adsorption tower being arranged in parallel, oxygen storage tank；It is left to inhaleThe inlet end of attached tower and right adsorption tower is connected by air inlet electromagnetic valve with the compressed air inlet of air compressor respectively, theyExhaust end is connected by total exhaust solenoid valve with the air inlet of oxygen storage tank respectively；Characterized in that, the left adsorption tower and the right sideMolecular sieve device is respectively equipped with inside adsorption tower, molecular sieve device includes the molecular sieve cylinder with the inner chamber run through up and down, setThe separator in molecular sieve drum intracoelomic cavity is put, encloses to form receiving space between separator and molecular sieve cylinder, the receiving spaceInterior filling zeolite molecular sieve, the receiving space has curved gas channel.
Further, the first demarcation strip and second that the separator is arranged alternately successively from top to bottom by several separatePlate is constituted, wherein, the circle ring column extended upward is equipped with the middle part of the first demarcation strip and the second demarcation strip, is separated firstIt is located at the position inside circle ring column on plate and is provided with the through hole run through, the position on the outside of circle ring column is located on the second demarcation stripProvided with looping pit.
Further, the interception net with some air admission holes, the air admission hole are embedded with the through hole and looping pitDiameter be less than zeolite molecular sieve diameter.
Further, the inside of the left adsorption tower and right adsorption tower is installed with the way of being detachably connected respectivelyMolecular sieve device.
Further, in addition to filter and drying device, the filter and drying device are successively set on skyOn pipeline between air compressor and air inlet electromagnetic valve.
Further, in addition to surge tank, the surge tank is arranged on the pipe between total exhaust solenoid valve and oxygen storage tankOn road.
Further, the left adsorption tower is provided with left intake valve, left aerogenesis valve, left bank air valve；The right adsorption tower is provided withRight intake valve, right aerogenesis valve, right air bleeding valve；Also connected between the left adsorption tower and right absorption figure by balance pipe road, it is describedBalance pipe road is provided with equalizing valve.
Further, in addition to oxygen concentration adjusting device, the oxygen concentration adjusting device includes central processing unit, pressureContracting oxygen supply device and oxygen concentration sensor；The compressed oxygen feeding mechanism is stored up by a ventilation channel and the oxygenTank is connected, and oxygen supply magnetic valve is provided with the ventilation channel；The oxygen storage tank is provided with oxygen therapy pipeline, the ventilation channelOxygen therapy magnetic valve is set；The oxygen concentration sensor is arranged in the oxygen storage tank；The signal of oxygen concentration sensor is defeatedGo out end to be connected with the signal input part of central processing unit, the first signal output part of central processing unit and the signal for supporting magnetic valveInput is connected, and the secondary signal output end of central processing unit is connected with curing by oxygen therapy the signal input part of magnetic valve.
To solve the above problems, the technical scheme that second object of the present invention is used is as follows：
A kind of method for producing oxygen through, it is characterised in that comprise the following steps：
1) oxygenerator described in an object of the present disclosure is provided；
2) after air compresses through air compressor, by filter, drying device carry out removal of impurities, dry after after, enterAir reservoir, the nitrogen molecular quilt entered by air inlet valve, left intake valve in left adsorption tower, pressure tower rise, compressed airZeolite molecular sieve is adsorbed, and unadsorbed oxygen passes through molecular sieve device, is stored up by left aerogenesis valve, oxygen aerogenesis valve into oxygenTank, this process is referred to as left suction, and the duration is 50-60 seconds；A left side is drawn through after journey terminates, and left adsorption tower passes through with right adsorption towerEqualizing valve is connected, and two pressure towers is reached equilibrium, this process is referred to as pressed, and the duration is 10-15 seconds；Pressure terminatesAfterwards, the nitrogen molecular that compressed air enters in right adsorption tower, compressed air by air inlet valve, right intake valve is by zeolite molecular sieveAbsorption, the oxygen of enrichment enters oxygen storage tank by right aerogenesis valve, oxygen aerogenesis valve, and this process is referred to as right suction, when continuingBetween be 50-60 seconds；The oxygen that zeolite molecular sieve is adsorbed in left adsorption tower is released back among air by the decompression of left bank air valve, this mistakeJourney is referred to as desorption；Otherwise right tower is simultaneously also in desorption during left tower absorption；After right suction terminates, into pressure equalizing, then it is switched toA left side is drawn through journey, follows go on always, so that the oxygen of continuous output high-purity.
Further, in addition to oxygen concentration adjusting device, the oxygen concentration adjusting device includes central processing unit, pressureContracting oxygen supply device and oxygen concentration sensor；The compressed oxygen feeding mechanism is stored up by a ventilation channel and the oxygenTank is connected, and oxygen supply magnetic valve is provided with the ventilation channel；The oxygen storage tank is provided with oxygen therapy pipeline, the ventilation channelOxygen therapy magnetic valve is set；The oxygen concentration sensor is arranged in the oxygen storage tank；The signal of oxygen concentration sensor is defeatedGo out end to be connected with the signal input part of central processing unit, the first signal output part of central processing unit and the signal for supporting magnetic valveInput is connected, and the secondary signal output end of central processing unit is connected with curing by oxygen therapy the signal input part of magnetic valve；Oxygen concentration is passedSensor is used to detect the oxygen concentration in oxygen storage tank and transmit a signal to central controller, and central controller is by oxygen concentrationAfter signal of change processing, if concentration is less than preset value, sends a signal to oxygen supply magnetic valve and open keeping magnetic valve；When concentration reachesDuring to preset value, send a signal to oxygen therapy magnetic valve and open oxygen therapy magnetic valve.
Compared with prior art, the beneficial effects of the present invention are：
Molecular sieve device is respectively equipped with inside left adsorption tower and right adsorption tower of the present invention, molecular sieve device includes havingThe molecular sieve cylinder of the inner chamber run through up and down, the separator set in molecular sieve drum intracoelomic cavity, separator and molecular sieve cylinder itBetween enclose to form receiving space, filling zeolite molecular sieve in the receiving space, the receiving space has curved gas channel,Therefore, it has the advantages that rational in infrastructure, capacity utilization is high and molecular sieve adsorption effect is good.The method for producing oxygen through of the present invention hasThe easy to operate and accurate advantage of control.
Brief description of the drawings
Fig. 1 is the structural representation of the oxygenerator described in the embodiment of the present invention 1；
Fig. 2 is the structural representation of the molecular sieve device described in the embodiment of the present invention 1；
Fig. 3 is the schematic block circuit diagram of the embodiment of the present invention 1.
Wherein, 1, air compressor；2nd, filter；3rd, drying device；4th, air inlet electromagnetic valve；5th, left adsorption tower；51st, it is leftIntake valve；52nd, left aerogenesis valve；53rd, left bank air valve；6th, right adsorption tower；61st, right intake valve；62nd, right aerogenesis valve；63rd, right exhaustValve；7th, surge tank；8th, oxygen storage tank；9th, total exhaust solenoid valve；10th, balance pipe road；11st, equalizing valve；100th, molecular sieve device；110th, molecular sieve cylinder；120th, separator；121st, the first demarcation strip；1211st, through hole；122nd, the second demarcation strip；1221st, it is annularHole；123rd, circle ring column；130th, zeolite molecular sieve；140th, net is intercepted；210th, central processing unit；220th, compressed oxygen supply dressPut；230th, oxygen concentration sensor；240th, oxygen supply magnetic valve；250th, magnetic valve is cured by oxygen therapy.
Embodiment
Embodiment 1:
Reference picture 1-3, a kind of oxygenerator, including air compressor 1, filter 2 and drying device 3, are arranged in parallelLeft adsorption tower 5 and right adsorption tower 6, surge tank 7, oxygen storage tank 8；The inlet end of left adsorption tower 5 and right adsorption tower 6 is respectively by enteringPneumoelectric magnet valve 4 is connected with the compressed air inlet of air compressor 1, their exhaust end respectively by total exhaust solenoid valve 9 withThe air inlet of oxygen storage tank 8 is connected；The filter 2 and drying device 3 are successively set on air compressor 1 and air inlet electromagnetismOn pipeline between valve 4.The surge tank 7 is arranged on the pipeline between total exhaust solenoid valve 9 and oxygen storage tank 8.The left sideAdsorption tower 5 is provided with left intake valve 51, left aerogenesis valve 52, left bank air valve 53；The right adsorption tower 6 is provided with right intake valve 61, right productionAir valve 62, right air bleeding valve 63；Also connected between the left adsorption tower 5 and right absorption figure by balance pipe road 10, the balance pipeRoad 10 is provided with equalizing valve 11.
Molecular sieve device 100 is respectively equipped with inside the left adsorption tower 5 and right adsorption tower 6, molecular sieve device 100 includes toolThere are the molecular sieve cylinder 110 for the inner chamber run through up and down, the separator 120 set in the inner chamber of molecular sieve cylinder 110, separator 120Enclose to form receiving space between molecular sieve cylinder 110, filling zeolite molecular sieve 130, the receiving space in the receiving spaceWith curved gas channel.
Further, the first demarcation strip 121 and that the separator 120 is arranged alternately successively from top to bottom by severalTwo compartment plate 122 is constituted, wherein, the middle part of the first demarcation strip 121 and the second demarcation strip 122 is equipped with the annulus extended upwardCylinder 123, the position inside circle ring column 123 is located on the first demarcation strip 121 and is provided with the through hole 1211 run through, at second pointThe position for being located at the outside of circle ring column 123 on dividing plate 122 is provided with looping pit 1221.Air and boiling can be increased using this structureThe contact area of stone molecular sieve 130, extension adsorption time, improve capacity utilization and molecular sieve adsorption effect.
Further, the interception net 140 with some air admission holes is embedded with the through hole 1211 and looping pit 1221,The diameter of the air admission hole is less than the diameter of zeolite molecular sieve 130.By so designing, zeolite molecular sieve 130 can be avoided to leakGo out receiving space.
Further, the inside of the left adsorption tower 5 and right adsorption tower 6 is fixedly mounted in the way of being detachably connected respectivelyThere is molecular sieve device 100.The mode being detachably connected can be snapped connection or be threadedly coupled.So molecule is easy in designThe replacing of screen device 100.
Further, in addition to oxygen concentration adjusting device, the oxygen concentration adjusting device includes central processing unit210th, compressed oxygen feeding mechanism 220 and oxygen concentration sensor 230；The compressed oxygen feeding mechanism 220 passes through an oxygen supplyPipeline is connected with the oxygen storage tank 8, and oxygen supply magnetic valve 240 is provided with the ventilation channel；The oxygen storage tank 8 is provided with defeatedOxygen therapy magnetic valve 250 is set on oxygen pipeline, the ventilation channel；The oxygen concentration sensor 230 is arranged at the oxygen storageIn tank 8；The signal output part of oxygen concentration sensor 230 is connected with the signal input part of central processing unit 210, central processing unit210 the first signal output part is with supporting the signal input part of magnetic valve to be connected, the secondary signal output end of central processing unit 210It is connected with the signal input part for curing by oxygen therapy magnetic valve 250.Oxygen concentration sensor 230 is used to detect that the oxygen in oxygen storage tank 8 is denseSpend and transmit a signal to central controller, after central controller handles oxygen concentration signals calculating, if concentration is less than pre-If value, send a signal to oxygen supply magnetic valve 240 and open keeping magnetic valve；When concentration reaches preset value, oxygen therapy is sent a signal toMagnetic valve 250 opens oxygen therapy magnetic valve 250.
A kind of method for producing oxygen through, comprises the following steps：
1) above-mentioned oxygenerator is provided；
2) after air compresses through air compressor, by filter, drying device carry out removal of impurities, dry after after, enterAir reservoir, the nitrogen molecular entered by air inlet valve, left intake valve 51 in left adsorption tower 5, pressure tower rise, compressed airAdsorbed by zeolite molecular sieve 130, unadsorbed oxygen passes through molecular sieve device 100, enters by left aerogenesis valve 52, oxygen aerogenesis valveEnter oxygen storage tank 8, this process is referred to as left suction, the duration is 56 seconds；A left side is drawn through after journey terminates, and left adsorption tower 5 is inhaled with rightAttached tower 6 is connected by equalizing valve 11, two pressure towers is reached equilibrium, and this process is referred to as pressed, and the duration is 12 seconds；After pressure terminates, the nitrogen molecular quilt that compressed air enters in right adsorption tower 6, compressed air by air inlet valve, right intake valve 61Zeolite molecular sieve 130 is adsorbed, and the oxygen of enrichment enters oxygen storage tank 8 by right aerogenesis valve 62, oxygen aerogenesis valve, and this process claimsFor it is right inhale, the duration be 56 seconds；The oxygen that zeolite molecular sieve 130 is adsorbed in left adsorption tower 5 is depressured by left bank air valve 53It is released back among air, this process is referred to as desorption；Otherwise right tower is simultaneously also in desorption during left tower absorption；To make to drop in molecular sieveThe nitrogen discharged is pressed to be fully discharged into air, the adsorption tower that oxygen is being desorbed by a normally opened back-flushing valve purging,Nitrogen in tower is blown out adsorption tower；This process is referred to as blowback, and it is to carry out simultaneously with desorption；After right suction terminates, enterEnter pressure equalizing, then be switched to a left side and be drawn through journey, follow go on always, so that the oxygen of continuous output high-purity.
By detection, the oxygen purity of left adsorption tower and right adsorption tower output is 94.44%.
Embodiment 2：
The characteristics of the present embodiment is：The structure of oxygenerator is same as Example 1.
A kind of method for producing oxygen through, comprises the following steps：
1) above-mentioned oxygenerator is provided；
2) after air compresses through air compressor, by filter, drying device carry out removal of impurities, dry after after, enterAir reservoir, the nitrogen molecular quilt entered by air inlet valve, left intake valve in left adsorption tower, pressure tower rise, compressed airZeolite molecular sieve is adsorbed, and unadsorbed oxygen passes through molecular sieve device, is stored up by left aerogenesis valve, oxygen aerogenesis valve into oxygenTank, this process is referred to as left suction, and the duration is 60 seconds；A left side is drawn through after journey terminates, and left adsorption tower passes through equal with right adsorption towerPressure valve is connected, and two pressure towers is reached equilibrium, this process is referred to as pressed, and the duration is 15 seconds；After pressure terminates, compressionThe nitrogen molecular that air enters in right adsorption tower, compressed air by air inlet valve, right intake valve is adsorbed by zeolite molecular sieve, richThe oxygen of collection enters oxygen storage tank by right aerogenesis valve, oxygen aerogenesis valve, and this process is referred to as right suction, and the duration is 60Second；The oxygen that zeolite molecular sieve is adsorbed in left adsorption tower is released back among air by the decompression of left bank air valve, and this process is referred to asDesorption；Otherwise right tower is simultaneously also in desorption during left tower absorption；It is fully discharged into greatly to make to be depressured the nitrogen discharged in molecular sieveIn gas, the nitrogen in tower is blown out adsorption tower by the adsorption tower that oxygen is being desorbed by a normally opened back-flushing valve purging；ThisProcess is referred to as blowback, and it is to carry out simultaneously with desorption；After right suction terminates, into pressure equalizing, then it is switched to a left side and is drawn through journey,Follow and go on always, so that the oxygen of continuous output high-purity.
By detection, the oxygen purity of left adsorption tower and right adsorption tower output is 92.34%.
Embodiment 3：
The characteristics of the present embodiment is：The structure of oxygenerator is same as Example 1.
A kind of method for producing oxygen through, comprises the following steps：
1) above-mentioned oxygenerator is provided；
2) after air compresses through air compressor, by filter, drying device carry out removal of impurities, dry after after, enterAir reservoir, the nitrogen molecular quilt entered by air inlet valve, left intake valve in left adsorption tower, pressure tower rise, compressed airZeolite molecular sieve is adsorbed, and unadsorbed oxygen passes through molecular sieve device, is stored up by left aerogenesis valve, oxygen aerogenesis valve into oxygenTank, this process is referred to as left suction, and the duration is:50 seconds；A left side is drawn through after journey terminates, and left adsorption tower passes through equal with right adsorption towerPressure valve is connected, and two pressure towers is reached equilibrium, this process is referred to as pressed, and the duration is 10 seconds；After pressure terminates, compressionThe nitrogen molecular that air enters in right adsorption tower, compressed air by air inlet valve, right intake valve is adsorbed by zeolite molecular sieve, richThe oxygen of collection enters oxygen storage tank by right aerogenesis valve, oxygen aerogenesis valve, and this process is referred to as right suction, and the duration is 50Second；The oxygen that zeolite molecular sieve is adsorbed in left adsorption tower is released back among air by the decompression of left bank air valve, and this process is referred to asDesorption；Otherwise right tower is simultaneously also in desorption during left tower absorption；It is fully discharged into greatly to make to be depressured the nitrogen discharged in molecular sieveIn gas, the nitrogen in tower is blown out adsorption tower by the adsorption tower that oxygen is being desorbed by a normally opened back-flushing valve purging；ThisProcess is referred to as blowback, and it is to carry out simultaneously with desorption；After right suction terminates, into pressure equalizing, then it is switched to a left side and is drawn through journey,Follow and go on always, so that the oxygen of continuous output high-purity.
By detection, the oxygen purity of left adsorption tower and right adsorption tower output is 93.55%.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to limit the scope of protection of the invention with this,The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present inventionClaimed scope.