CN103723684A - Oxygen generator with cyclic filtration function - Google Patents

Oxygen generator with cyclic filtration function Download PDF

Info

Publication number
CN103723684A
CN103723684A CN201310688402.0A CN201310688402A CN103723684A CN 103723684 A CN103723684 A CN 103723684A CN 201310688402 A CN201310688402 A CN 201310688402A CN 103723684 A CN103723684 A CN 103723684A
Authority
CN
China
Prior art keywords
oxygen
concentration
switch
cpu
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310688402.0A
Other languages
Chinese (zh)
Other versions
CN103723684B (en
Inventor
庞文明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Comay (changzhou) Electronics Co Ltd
Original Assignee
Comay (changzhou) Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Comay (changzhou) Electronics Co Ltd filed Critical Comay (changzhou) Electronics Co Ltd
Priority to CN201310688402.0A priority Critical patent/CN103723684B/en
Publication of CN103723684A publication Critical patent/CN103723684A/en
Application granted granted Critical
Publication of CN103723684B publication Critical patent/CN103723684B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Separation Of Gases By Adsorption (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

The invention discloses an oxygen generator with a cyclic filtration function. Closing of switches and valves is controlled by a CPU (Central Processing Unit) to prepare oxygen in two different concentrations, namely first-concentration oxygen and second-concentration oxygen, wherein the concentration of the first-concentration oxygen is lower than that of the second-concentration oxygen; and since parameters can be changed during oxygen generation or errors are produced due to equipment reasons, a first oxygen sensor and a second oxygen sensor can make a judgment to store the oxygen in corresponding oxygen storage tanks according to the different concentrations. The oxygen in the different concentrations can be selected according to a particular service environment, and the generator is simple to use. Even if an oxygen generation channel is broken, another oxygen generation channel can continue generating the oxygen, an oxygen lack phenomenon due to the damage of equipment in the half way is avoided, and the service life of the equipment is prolonged due to the two oxygen generation channels. The CPU can control the fifth switch to allow the equipment to circularly filter the low-concentration oxygen, so that the high-concentration oxygen can be obtained quickly, and the equipment is more flexible to use.

Description

The oxygenerator of filtration capable of circulation
Technical field
The present invention relates to a kind of oxygenerator of filtration capable of circulation.
Background technology
Oxygenerator can be used for medical treatment, chemical industry, highlands, metallurgy, papermaking, biotechnology etc. every field, stricter to the concentration requirement of oxygen in some application of wherein medical treatment, chemical industry, metallurgy, biotechnology, if oxygen concentration is too high, can affects chemical reaction or cause " oxygen intoxication " phenomenon, if oxygen concentration is too low, also can affects chemical reaction or cause " anoxic " phenomenon.In addition, the oxygenerator of existing design only has an oxygen container, and the oxygen concentration of output is unstable and error ratio is larger, is unfavorable for the oxygen concentration state that remains best, and then causes the insufficient or production efficiency of chemical reaction low.
Summary of the invention
For the problems referred to above, the invention provides a kind of oxygenerator of filtration capable of circulation, can according to concentration, be divided in different oxygen containers the oxygen making, but also can thereby the oxygen of the lower concentration making be carried out circulating filtration and obtained fast the oxygen of high density, further, oxygen concentration in environment is monitored, made environment maintain preferably oxygen concentration.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
The oxygenerator of filtration capable of circulation, it is characterized in that, comprise connected in turn air filter, admission air silencer, compressor, condenser, throttling valve, between described condenser and throttling valve, be provided with first point of gas control valve and second point of gas control valve, described first point of gas control valve is connected with CPU with second point of gas control valve, described first point of gas control valve is connected with the first pneumavalve, described the first pneumavalve is connected with the first adsorbing tower with molecular sieve, described second point of gas control valve is connected with the second pneumavalve, described the second pneumavalve is connected with the second adsorbing tower with molecular sieve, the outlet of described the first pneumavalve and the second pneumavalve is connected with exhaust snubber, between described the first adsorbing tower with molecular sieve and the second adsorbing tower with molecular sieve, be provided with equalizing valve, described equalizing valve is connected with CPU, described the first adsorbing tower with molecular sieve is connected with the first oxygen sensor, described the second adsorbing tower with molecular sieve is connected with the second oxygen sensor, described the first oxygen sensor is connected with the 3rd switch with the first switch respectively, the first oxygen container is collected the oxygen of the first concentration by the first switch and the first check valve, the second oxygen container is collected the oxygen of the second concentration by the 3rd switch and the 3rd check valve, described the second oxygen sensor is connected with the 4th switch with second switch respectively, the first oxygen container is collected the oxygen of the first concentration by second switch and the second check valve, the second oxygen container is collected the oxygen of the second concentration by the 4th switch and the 4th check valve, the first concentration is less than the second concentration, described the first oxygen container is connected with air filter by the 5th switch, described the first switch, second switch, the 3rd switch, the 4th switch is all connected with CPU with the 5th switch, the outlet of described the first oxygen container and the second oxygen container is connected with relief valve, strainer, oxygen flow meter, humidifying cup successively, finally through oxygen exhaust, discharge, described relief valve is connected with CPU, described oxygenerator also comprises operating panel, is provided with the button one and the button two that are connected with CPU on described operating panel.Preferred described oxygenerator also comprises the 3rd oxygen sensor of oxygen concentration in measurement environment, and described the 3rd oxygen sensor is connected with CPU.
By CPU, controlling the closure of each switch and valve, make the oxygen of two kinds of different concns, the i.e. oxygen of the oxygen of the first concentration and the second concentration, wherein the oxygen concentration of the first concentration is lower than the oxygen of the second concentration, because parameters in oxygen preparation can change, or the reason of equipment causes error, can judge by the first oxygen sensor and the second oxygen sensor, according to different concentration, oxygen is stored in corresponding oxygen container.The oxygen that can select according to concrete environment for use different concns, is used simple.Even if there is an oxygen passage to break, also have another one oxygen passage can continue oxygen, to avoid equipment to damage midway and cause anoxia phenomenon, two oxygen passages have increased the work-ing life of equipment.In addition, for the use field of the oxygen of demand high density, can control the 5th switch by CPU and make equipment carry out circulating filtration to the oxygen of lower concentration, can obtain fast the oxygen of high density, equipment is used more flexible.The 3rd oxygen sensor is used for real-time oxygen concentration in feedback environment, facilitates CPU to control the closure of relief valve, and then maintains preferably oxygen concentration.
The invention has the beneficial effects as follows: can according to concentration, be divided in different oxygen containers the oxygen making, but also can thereby the oxygen of the lower concentration making be carried out circulating filtration and obtained fast the oxygen of high density, further, oxygen concentration in environment is monitored, made environment maintain preferably oxygen concentration.Easy to use, handiness is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the oxygenerator of the present invention's filtration capable of circulation;
Fig. 2 is the affect figure of adsorption cycle on oxygen concn;
Fig. 3 all presses the affect figure of time on oxygen concn;
Fig. 4 is the affect figure of rate of discharge on oxygen concn;
Fig. 5 is adsorption cycle and the correlation diagram of all pressing the time;
Fig. 6 is the correlation diagram of adsorption cycle and rate of discharge.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical solution of the present invention is described in further detail, so that those skilled in the art can better understand the present invention also, can be implemented, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, the oxygenerator of filtration capable of circulation, comprise connected in turn air filter, admission air silencer, compressor, condenser, throttling valve, between described condenser and throttling valve, be provided with first point of gas control valve and second point of gas control valve, described first point of gas control valve is connected with CPU with second point of gas control valve, described first point of gas control valve is connected with the first pneumavalve, described the first pneumavalve is connected with the first adsorbing tower with molecular sieve, described second point of gas control valve is connected with the second pneumavalve, described the second pneumavalve is connected with the second adsorbing tower with molecular sieve, the outlet of described the first pneumavalve and the second pneumavalve is connected with exhaust snubber, between described the first adsorbing tower with molecular sieve and the second adsorbing tower with molecular sieve, be provided with equalizing valve, described equalizing valve is connected with CPU, described the first adsorbing tower with molecular sieve is connected with the first oxygen sensor, described the second adsorbing tower with molecular sieve is connected with the second oxygen sensor, described the first oxygen sensor is connected with the 3rd switch with the first switch respectively, the first oxygen container is collected the oxygen of the first concentration by the first switch and the first check valve, the second oxygen container is collected the oxygen of the second concentration by the 3rd switch and the 3rd check valve, described the second oxygen sensor is connected with the 4th switch with second switch respectively, the first oxygen container is collected the oxygen of the first concentration by second switch and the second check valve, the second oxygen container is collected the oxygen of the second concentration by the 4th switch and the 4th check valve, the first concentration is less than the second concentration, described the first oxygen container is connected with air filter by the 5th switch, described the first switch, second switch, the 3rd switch, the 4th switch is all connected with CPU with the 5th switch, the outlet of described the first oxygen container and the second oxygen container is connected with relief valve, strainer, oxygen flow meter, humidifying cup successively, finally through oxygen exhaust, discharge, described relief valve is connected with CPU, described oxygenerator also comprises operating panel, is provided with the button one and the button two that are connected with CPU on described operating panel.Preferred described oxygenerator also comprises the 3rd oxygen sensor of oxygen concentration in measurement environment, and described the 3rd oxygen sensor is connected with CPU.
Its specific works process is as follows: first air filters through air filter, filter out koniology and solid impurity, admission air silencer can reduce noise, air is successively through overdraft and condensation, the liquid producing is atomized discharge by throttling valve, remaining part enters first point of gas control valve or second point of gas control valve by the control of CPU, nitrogen is wherein discharged from by the first pneumavalve and the second pneumavalve, same, in order to reduce noise, at venting port, be provided with exhaust snubber, in air, remaining composition will be transported to the first adsorbing tower with molecular sieve by the first pneumavalve and the second pneumavalve or the second adsorbing tower with molecular sieve carries out final oxygen and nitrogen separation, wherein the first adsorbing tower with molecular sieve or the second adsorbing tower with molecular sieve consist of the molecular sieve of selective adsorption nitrogen.Nitrogen after the first adsorbing tower with molecular sieve separates is transported to the first pneumavalve and the second pneumavalve and finally through exhaust snubber, discharges.
Oxygen after the first adsorbing tower with molecular sieve separates carries out the measurement of oxygen concentration through the first oxygen sensor, CPU is according to concentration control first switch of feedback and the closure of the 3rd switch, when the concentration value of oxygen reaches the value of setting, such as being greater than the second concentration, CPU controls the first switch disconnection, the 3rd switch opens; When the concentration value of oxygen is less than the value of setting, CPU controls the first switch opens, and the 3rd switch disconnects.Same, oxygen after the second adsorbing tower with molecular sieve separates carries out the measurement of oxygen concentration through the second oxygen sensor, CPU is according to the concentration control second switch of feedback and the closure of the 4th switch, when the concentration value of oxygen reaches the value of setting, such as being greater than the second concentration, CPU controls second switch disconnection, the 4th switch opens; When the concentration value of oxygen is less than the value of setting, CPU control second switch is opened, and the 4th switch disconnects.The oxygen of final the first oxygen container storage lower concentration, the oxygen of the second oxygen container store high concentrations.
In addition, for the use field of the oxygen of demand high density, can control the 5th switch opens by CPU, it should be noted that and between the 5th switch and air filter, be also provided with the 5th check valve, succinct for picture, does not illustrate, this is the general knowledge of this area.The oxygen of the lower concentration in the first oxygen container enters air filter and carries out next circulating filtration, and then can obtain at short notice the oxygen of high density, and equipment is used more flexible.The 3rd oxygen sensor is used for real-time oxygen concentration in feedback environment, facilitates CPU to control the closure of relief valve, and then maintains preferably oxygen concentration.
Wherein, adsorption cycle, all press time, outlet oxygen pressure and system works pressure all to affect the concentration of the oxygen making, therefore can control by CPU the closure of each switch and valve, make the oxygen of two kinds of different concns.Its concrete influence factor is as follows:
1), take oxygen concn as research object, adopt the method for experiment to investigate adsorption cycle in circulation oxygen preparation, all press the impact on oxygen concn of time and rate of discharge.
Experiment is about 280W with the compressor power of oxygenerator, and single tower molecular sieve consumption is 0.6Kg, and the aspect ratio of adsorption tower is 5.6, and molecular sieve uses LiX type, and test ambient temperature 25 is spent.The oxygen concn tester using requires the time of response to be less than 8 seconds.Adsorption cycle adopts 5S, 6S, 7S, 8S, 9S, 10S, 11S, 12S, these 7 parameters of 13S, all the pressure time adopts 0.4S, 0.6S, 0.7S, 0.8S, 0.9,1.1S, 1.3S, these 8 time parameters of 1.5S, outlet oxygen flow adopts these 4 flows of 1L/2L/3L/4Lmin, concrete outcome is in Table 1 and table 2, and wherein each state verification is averaged for 3 times.
Table 1, all press time and rate of discharge and corresponding oxygen concn
Figure BDA0000436794080000061
Table 2, adsorption cycle and rate of discharge and corresponding oxygen concn
Figure BDA0000436794080000071
2) experiment of single factor data analysis
A) adsorption cycle impact: adopt the data set of 2L/min in table 2, with polynomial expression nonlinear least-square curve simulation, all press the 0.8S that remains unchanged.The simulation curve of 4 groups of data is very similar to 2L/min's, along with adsorption cycle increased after oxygen concn increased before this, reduces again, has an extreme point, and particular content is shown in Fig. 2.The analysis of causes: the pressure of adsorption bed changes between 0~0.2MPs in the working cycle of the sorption and desorption of molecular sieve oxygen generation.In this pressure range, molecular sieve can be regarded linear relationship as to the absorption of nitrogen.When adsorption cycle more in short-term, switch pressure also lower, molecular sieve is few to the adsorptive capacity of nitrogen, so oxygen-producing amount is also less.Adsorption cycle is short in addition, and the sorption and desorption time just shortens, and sorption and desorption is incomplete, so oxygen concn is also lower.When adsorption cycle increases, switching pressure also increases, and the sorption and desorption time also increases, and sorption and desorption is more abundant, so produce oxygen and oxygen concn increase.After oxygen level reaches maximum value, then increase adsorption cycle, molecular sieve reaches capacity to the absorption of nitrogen, and nitrogen will puncture molecular sieve oxygen content is reduced.Can find by experiment best adsorption cycle.
B) all press the impact of time: adopt the data set of 2L/min in table 1, with polynomial expression nonlinear least-square curve simulation, the adsorption cycle 8S that remains unchanged.The simulation curve of 4 groups of data is very similar to 2L/min's, and particular content is shown in Fig. 3, along with all pressure time increase oxygen concn slowly minimizings again after first increasing, has an extreme point.The analysis of causes: adsorption tower exit is the oxygen of high-content, when switching, adsorption tower because the exit oxygen level of another adsorption tower (desorb is complete) that just enters adsorbed state is the increase of starting from scratch, in this process, caused the oxygen concn of oxygen exhaust to have the phenomenon of an instantaneous minimizing.All baric flow journey is exactly before adsorption cycle finishes, to allow the current adsorption tower in adsorbed state continue absorption, and makes the complete adsorption tower of desorb of another also enter adsorbed state simultaneously, does not just have like this phenomenon of minimizing at the oxygen concn of oxygen exhaust.For the mode of all pressing, have two kinds, one is single-ended all press (adsorption tower inlet end), and another kind is that all press at two ends.Single-ended all pressure is generally to utilize sorption and desorption control magnetic valve to carry out the control of time and sequential at inlet end, and both-end is all pressed and will be increased in outlet side a magnetic valve.Experimental results show that the rate of recovery that both-end is all pressed and oxygen level are all higher than single-ended equal baric flow journey.Both-end is all pressed and can be utilized the equal pressure electromagnetic valve prolongation in outlet side all to press the time (time of setting up a call), and after all having pressed, wherein a part of product oxygen enters in the adsorption tower that starts desorb, thereby strengthen the blowback to adsorption bed, washes the desorb degree in tower that promoted.All there is certain value the pressure time, after having exceeded definite value, oxygen level no longer improves, because the nitrogen adsorption capacity of the adsorption tower not being desorbed is saturated along with all pressing time lengthening to enter, a part of product oxygen of will using up is cleaned in blowback in addition, so all press the oversize oxygen level that can reduce on the contrary of time.
C) impact of rate of discharge: adopt the data set of adsorption cycle 8S in table 2, all press the 0.8S that remains unchanged.The relation curve of simulation rate of discharge to oxygen concn, as shown in Figure 4.Oxygen concn can improve along with the minimizing of rate of discharge as can see from Figure 4, but can and reduce along with flow minimizing again after arriving certain value.The analysis of causes: because the pressure in adsorption tower be by charge flow rate with go out the pressure difference that airshed forms and caused, reduce airshed emotionally condition be just equivalent to increase the pressure on ground in adsorption tower, if adsorption cycle and all press constant situation of time along with the reduction oxygen level of rate of discharge can increase, but further reduce rate of discharge to certain value, from the graph, can see when lower than 1.5L/min, because the oxygen of high density in adsorption tower can not flow out adsorption tower in time, cause the air that newly enters adsorption tower fully not adsorb, unnecessary nitrogen has caused the reduction of oxygen level.
3) multifactorial associated impact analysis
We study and find that it is not single affecting oxygen level factor, and it is the coefficient result of multiple factors.Our research work be mainly how under multifactor effect, to find optimal balance point.
A) adsorption cycle and the associated impact of all pressing the time: we remain with the experimental data on table 1 and table 2 do one group of adsorption cycle with all press the graph of relation of time to oxygen level, as shown in Figure 5.The vertex of all pressing as can see from Figure 5 time effects oxygen level in graphic representation is with adsorption cycle, not change.All pressing in time 0~0.6S time period, the most smooth adsorption cycle 5S of the rate of rise in optimal adsorption cycle and the rate of rise of 11S are far longer than the slope of 8S, that is to say that adsorption cycle and the best all press time difference more greatly oxygen level to be changed just more responsive, select the best all to press time and adsorption cycle can make oxygen level variable effect minimum.
B) the associated impact of adsorption cycle and rate of discharge, as shown in Figure 6: tracing analysis: adsorption cycle 8S, when rate of discharge is less than 1.5L/min, along with increasing oxygen level, pressure also has increase, approaching after the rate of discharge of 2L/min oxygen level changes and starts to become mild, because this time, adsorption cycle and adsorption tower internal pressure matched, in adsorption time, nitrogen is fully adsorbed, so change rate of discharge, can obviously not affect oxygen level.Adsorption cycle 5S, because air is short at absorption dwell time in the tower, now rate of discharge reduces has just increased tower internal pressure, so oxygen level can increase thereupon, and after rate of discharge reaches 2L/min because now adsorption time is short, tower internal pressure is along with rate of discharge increases and reduces, and capacity that nitrogen is adsorbed reduces, and therefore oxygen level is also just along with rate of discharge increase and reduce.For adsorption cycle 11S, because switching time is long, after rate of discharge reaches 2L/min, because nitrogen adsorption capacity is saturated, unnecessary nitrogen enters in product oxygen because can not be adsorbed, so oxygen level also can reduce.
The associated impact of c) all pressing time and rate of discharge as can be seen from Table 1, selects the best all to press the time, and rate of discharge does not almost affect oxygen level.Do not increase and all press the time, when rate of discharge is smaller, oxygen level is higher, along with rate of discharge increases, when being switched to the adsorption tower of desorption and regeneration, oxygen level is lower at short notice for new tower, and the low oxygen content oxygen that all outlet ports flow enters more greatly oxygen container is just more.
4) determine desirable adsorption cycle and all press the time
Data and theoretical analysis by experiment, has made adsorption cycle clear and has all pressed the relation of time and oxygen concn, for we determine desirable adsorption cycle and all the pressure time provides reliable foundation.
Along with adsorption cycle increases, producing oxygen concn first increases rear reduction, has an extreme point;
Have all and to press with larger without all pressing producing oxygen concn impact, along with equal pressure time increases oxygen level and first increases then and slowly reduce, have an extreme point.And optimum point does not move with the variation of adsorption cycle;
Adsorption cycle, all press the variation of time and rate of discharge all to have impact to oxygen level, and adsorption cycle is larger, to oxygen level, changes more responsive;
The factor that affects oxygen concn by data analysis is respectively: adsorption cycle > all presses time > rate of discharge.Those skilled in the art can be according to specification sheets and accompanying drawing, by the control of CPU, obtain the oxygen of two kinds of different concns, do not repeat them here, for the ease of user, use, can to CPU input, make by button one signal of the oxygen of the first concentration, by button two, to CPU input, make the signal of the oxygen of the second concentration.CPU the switch of relief valve and the first oxygen container and the second oxygen container according to the signal control of input simultaneously, and final oxygen is transported in the environment needing through strainer, oxygen flow meter, humidifying cup, oxygen exhaust successively.
By CPU, controlling the closure of each switch and valve, make the oxygen of two kinds of different concns, the i.e. oxygen of the oxygen of the first concentration and the second concentration, wherein the oxygen concentration of the first concentration is lower than the oxygen of the second concentration, because parameters in oxygen preparation can change, or the reason of equipment causes error, can judge by the first oxygen sensor and the second oxygen sensor, according to different concentration, oxygen is stored in corresponding oxygen container.The oxygen that can select according to concrete environment for use different concns, is used simple.Even if there is an oxygen passage to break, also have another one oxygen passage can continue oxygen, to avoid equipment to damage midway and cause anoxia phenomenon, two oxygen passages have increased the work-ing life of equipment.
These are only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification sheets of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (2)

1. the oxygenerator of filtration capable of circulation, it is characterized in that, comprise connected in turn air filter, admission air silencer, compressor, condenser, throttling valve, between described condenser and throttling valve, be provided with first point of gas control valve and second point of gas control valve, described first point of gas control valve is connected with CPU with second point of gas control valve, described first point of gas control valve is connected with the first pneumavalve, described the first pneumavalve is connected with the first adsorbing tower with molecular sieve, described second point of gas control valve is connected with the second pneumavalve, described the second pneumavalve is connected with the second adsorbing tower with molecular sieve, the outlet of described the first pneumavalve and the second pneumavalve is connected with exhaust snubber, between described the first adsorbing tower with molecular sieve and the second adsorbing tower with molecular sieve, be provided with equalizing valve, described equalizing valve is connected with CPU, described the first adsorbing tower with molecular sieve is connected with the first oxygen sensor, described the second adsorbing tower with molecular sieve is connected with the second oxygen sensor, described the first oxygen sensor is connected with the 3rd switch with the first switch respectively, the first oxygen container is collected the oxygen of the first concentration by the first switch and the first check valve, the second oxygen container is collected the oxygen of the second concentration by the 3rd switch and the 3rd check valve, described the second oxygen sensor is connected with the 4th switch with second switch respectively, the first oxygen container is collected the oxygen of the first concentration by second switch and the second check valve, the second oxygen container is collected the oxygen of the second concentration by the 4th switch and the 4th check valve, the first concentration is less than the second concentration, described the first oxygen container is connected with air filter by the 5th switch, described the first switch, second switch, the 3rd switch, the 4th switch is all connected with CPU with the 5th switch, the outlet of described the first oxygen container and the second oxygen container is connected with relief valve, strainer, oxygen flow meter, humidifying cup successively, finally through oxygen exhaust, discharge, described relief valve is connected with CPU, described oxygenerator also comprises operating panel, is provided with the button one and the button two that are connected with CPU on described operating panel.
2. the oxygenerator of filtration capable of circulation according to claim 1, is characterized in that, also comprises the 3rd oxygen sensor of oxygen concentration in measurement environment, and described the 3rd oxygen sensor is connected with CPU.
CN201310688402.0A 2013-12-13 2013-12-13 Oxygen generator with cyclic filtration function Expired - Fee Related CN103723684B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310688402.0A CN103723684B (en) 2013-12-13 2013-12-13 Oxygen generator with cyclic filtration function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310688402.0A CN103723684B (en) 2013-12-13 2013-12-13 Oxygen generator with cyclic filtration function

Publications (2)

Publication Number Publication Date
CN103723684A true CN103723684A (en) 2014-04-16
CN103723684B CN103723684B (en) 2015-05-06

Family

ID=50448033

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310688402.0A Expired - Fee Related CN103723684B (en) 2013-12-13 2013-12-13 Oxygen generator with cyclic filtration function

Country Status (1)

Country Link
CN (1) CN103723684B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104071753A (en) * 2014-06-05 2014-10-01 上海冠瑞医用电子有限公司 Oxygen production system and method and oxygen production machine
CN110320836A (en) * 2019-07-06 2019-10-11 科迈(常州)电子有限公司 A kind of oxygenerator switching sequence control method based on pressure control

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10104190A (en) * 1996-09-26 1998-04-24 Nippon Rufuto Kk Oxygen concentration detection method using oxygen sensor, abnormality judging method of oxygen sensor, abnormality judging method of oxygen concentrator and oxygen concentrator
JP2002219176A (en) * 2001-01-25 2002-08-06 Fukuda Sangyo:Kk Oxygen concentrator for medical treatment
CN2540188Y (en) * 2002-04-17 2003-03-19 中国科学院沈阳自动化研究所 Small medical oxygenerator with oxygen concentration detection function
JP2003286009A (en) * 2002-03-28 2003-10-07 Ngk Spark Plug Co Ltd Oxygen concentrator
US20040040439A1 (en) * 2002-08-27 2004-03-04 Litton Systems, Inc. Oxygen concentrator system
JP2005111021A (en) * 2003-10-09 2005-04-28 Terumo Corp Oxygen concentrator
CN203699898U (en) * 2013-12-13 2014-07-09 科迈(常州)电子有限公司 Oxygen generator capable of filtering circularly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10104190A (en) * 1996-09-26 1998-04-24 Nippon Rufuto Kk Oxygen concentration detection method using oxygen sensor, abnormality judging method of oxygen sensor, abnormality judging method of oxygen concentrator and oxygen concentrator
JP2002219176A (en) * 2001-01-25 2002-08-06 Fukuda Sangyo:Kk Oxygen concentrator for medical treatment
JP2003286009A (en) * 2002-03-28 2003-10-07 Ngk Spark Plug Co Ltd Oxygen concentrator
CN2540188Y (en) * 2002-04-17 2003-03-19 中国科学院沈阳自动化研究所 Small medical oxygenerator with oxygen concentration detection function
US20040040439A1 (en) * 2002-08-27 2004-03-04 Litton Systems, Inc. Oxygen concentrator system
JP2005111021A (en) * 2003-10-09 2005-04-28 Terumo Corp Oxygen concentrator
CN203699898U (en) * 2013-12-13 2014-07-09 科迈(常州)电子有限公司 Oxygen generator capable of filtering circularly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104071753A (en) * 2014-06-05 2014-10-01 上海冠瑞医用电子有限公司 Oxygen production system and method and oxygen production machine
CN110320836A (en) * 2019-07-06 2019-10-11 科迈(常州)电子有限公司 A kind of oxygenerator switching sequence control method based on pressure control
CN110320836B (en) * 2019-07-06 2022-03-11 科迈(常州)电子有限公司 Oxygenerator switching time sequence control method based on pressure control

Also Published As

Publication number Publication date
CN103723684B (en) 2015-05-06

Similar Documents

Publication Publication Date Title
CN101274752B (en) Separation and utilization process for sulfuric dioxide and carbon dioxide in stack gas
CN201263957Y (en) Middle-top pressure equalizing high-purity nitrogen PSA series nitrogen production system according to concentration gradient
CN102372263A (en) Molecular sieve pressure-swing adsorption oxygenerator with double oxygen storage tank
CN103723684B (en) Oxygen generator with cyclic filtration function
CN103933828A (en) Multi-stage adsorption type oil gas recycling system and recycling process thereof
CN214528139U (en) Energy-saving oxygen generator
CN102826509B (en) Equipment for purifying general hydrogen gas into high-purity hydrogen gas
CN203699898U (en) Oxygen generator capable of filtering circularly
RU101646U1 (en) PLANT FOR PRODUCING OXYGEN FROM ATMOSPHERIC AIR
CN203699902U (en) High-concentration oxygen generator
CN202237712U (en) Device for concentrating coal mine ventilation air methane through multi-tower vacuum pressure swing adsorption method
CN103723683B (en) High concentration oxygen generator
CN201850137U (en) Molecular sieve pressure-swing-adsorption oxygen generator with double oxygen storage tanks
CN102380285B (en) Multi-tower vacuum pressure swing adsorption based method and apparatus for concentrating coal mine ventilation air methane
CN204522671U (en) Multistage handing-over absorption method oil-gas recovery processing device
CN209442643U (en) A kind of oxygen generation system recycling unqualified oxygen
CN204656291U (en) A kind of novel energy-conserving VPSA oxygen generating plant
CN218867160U (en) Pump oxygen intake system for fuel cell
CN204111314U (en) Small-sized three-tower structure molecular-sieve oxygen generator
CN106811251A (en) The small-sized methane purification technique that a kind of pressure and temperature varying absorption is combined
CN203333608U (en) Marsh gas purification system
CN105399063A (en) Combined high pressure nitrogen purification equipment
CN103736361A (en) Pressure swing adsorption unit device, pressure swing adsorption system and adsorption separation method thereof
RU101645U1 (en) PLANT FOR PRODUCING NITROGEN FROM OXYGEN-CONTAINING MIXTURES
CN201988309U (en) Methanol purge gas treatment system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150506

Termination date: 20161213

CF01 Termination of patent right due to non-payment of annual fee