CN1411895A - Control device of oxygen gas generator and its control method - Google Patents
Control device of oxygen gas generator and its control method Download PDFInfo
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Abstract
The present invention relates to the manufacture of oxygen gas generator, it includes an adsorption tuwer whose interior contains adsorbing agent and can make flowing-in air adsorb nitrogen gas and release oxygen gas; an air pump for changing pressurized adsorption tower into vacuum state; a pipeline for connecting adsorption tower with air pump to make them form a loop circuit; a T-way value mounted on the pipeline near by inlet of air pump; a control portion for switching air-sucking valve and air exhaust valve and controlling vacuum state or pressurized state of the adsorption tower; and a singnal input portions for inputting signal to make control portion judge value switching and judge the state or adsorption tower. Said invention also provides its application method.
Description
Technical field
The present invention relates to the manufacturing of oxygen generator, this specifically oxygen generator device and control method are by extraneous air absorption nitrogen, separate generating oxygen.
Background technology
Generally speaking, oxygen generator is that contained 21% the nitrogen of accounting in the atmosphere is separated and offers the user.As everyone knows, can utilize water is carried out the mode of electricity decomposition and the mode of chemical reaction etc., still, these modes exist the shortcoming that operability is numerous and diverse, stability is low.
Recently, adopted the method for finishing absorption or desorb oxygen process by atmosphere, separate the oxygen generator of supplying with oxygen, be widely used.Fig. 1 shows the overview of this conventional oxygen generator and forms situation.
As shown in the figure, traditional oxygen generator is made up of following each several part substantially: the air pump 10 that makes the force air circulation; In parallel with above-mentioned air pump 10, optionally form two triple valves 21,22 of air gas circuit; Link to each other the adsorption tower 30 that inner filling adsorbent Z is used by air absorption nitrogen with above-mentioned two triple valves 21,22; Be connected with above-mentioned adsorption tower 30, the oxygen gas row after above-mentioned adsorbent Z is separated is to the oxygen exhaust portion 40 of outside; And be contained in check valve 50 between above-mentioned adsorption tower 30 and the above-mentioned oxygen exhaust portion 40.As the adsorbent Z that fills above-mentioned adsorption tower 30 usefulness, the general extraordinary zeolitic materials of absorption property that use more.
The action of the conventional oxygen generator of above-mentioned composition is divided into pressure period and vacuum stages two parts.Pressure period is behind the absorption nitrogen, to separate generating oxygen from extraneous air.For this reason will be to adsorption tower 30 internal pressurization.Vacuum stages then is that the nitrogen of adsorbent Z absorption is carried out the desorb discharging.Below each stage action is done and specified.
At first, the pressure period through the 1st triple valve 21, flows into extraneous air by the action of air pump 10, supplies with adsorption towers 30 inside through the 2nd triple valve 22 again after the compression, thereupon, and 30 outer leaked-in airs of adsorption tower and pressurized.
At this moment, the nitrogen that is included in the extraneous air is adsorbed agent Z absorption, isolates oxygen, when surpassing certain pressure, just by check valve 50, to 40 dischargings of oxygen discharge portion.
And vacuum stages, 21,22 on its 1.2nd triple valve switches to the stream opposite with the pressure period, and leans on the suction of air pump 10, makes adsorption tower 30 inside become vacuum state.Simultaneously, nitrogen desorb from absorbent Z is passed through above-mentioned the 1st triple valve 21, air pump 10, the 2nd triple valve 22 and successively to outside drain.
Above-mentioned traditional oxygen generator comes to this repeatedly through separating, and the pressure period that generates oxygen is conciliate the vacuum stages that nitrogen is put in suction, comes oxygenous.
Fig. 2 shows the situation of the adsorption tower internal pressure variation in conventional oxygen generator pressure period and vacuum stages cycle.As can be seen from Figure, traditional oxygen generator is in its pressure period, from vacuum state to the setting pressure state to the time of adsorption tower 30 pressurizations, and in its vacuum stages, make adsorption tower 30 become vacuum from the setting pressure state to vacuum state, all need a period of time.
That is to say that to exist pressing time long and vacuum time is long, increased such problem of cycle of whole pressurization of oxygen generator and vacuum.
Particularly because to arrive time of setting pressure state from vacuum state long, thereby when regarded as standard certain pressing time, the oxygen discharge capacity that reduces the interior pressure maintenance proportional relation of pressing time and adsorption tower 30 has relatively just had certain limit.
Simultaneously, traditional oxygen generator is from the pressure period to the vacuum stages, or from the vacuum stages to the pressure period, all be to change sharp, because this moment, pressure changed, 10 moments of air pump will produce serious impact, will produce ill effect to the reliability of oxygen generator.
Summary of the invention
The invention provides a kind of control device and control method of oxygen generator, can solve the problems of the technologies described above, its purpose is as described below.
First, oxygen generator is when the mutual variation of pressure period and vacuum stages, reduced time, or reduced time, thereby shortened the entire pressurisation cycle and the vacuum cycle of oxygen generator from the setting pressure state to vacuum state from vacuum state to the setting pressure state.
The second, prevent from the pressure period to vacuum stages, or from the rapid conversion of vacuum state, suppress the impact that air pump moment occurs, thereby improved the reliability of oxygen generator to the pressure period.
The 3rd, make with the state of the best to offer indoor oxygen concentration and keep invariable.
The present invention includes following each part, and as its feature.The inner adsorbent of filling adsorbs nitrogen from leaked-in air, discharge the adsorption tower that oxygen is used; Above-mentioned adsorption tower is pressurizeed or becomes the air pump that vacuum is used; Above-mentioned adsorption tower is connected side by side with above-mentioned air pump, forms the pipe arrangement that the gas circuit that flows is used; Be positioned at above-mentioned air pump inlet, be contained in pipe arrangement top, externally in atmospheric pressure, air pump air inlet and three directions of adsorption tower, select to be communicated with the inlet valve of the triple valve that two directions use; Be positioned at above-mentioned air pump exhaust outlet, be contained in above the above-mentioned pipe arrangement, externally in atmospheric pressure, air pump exhaust outlet and three directions of adsorption tower, select to be communicated with the air bleeding valve of the triple valve that two directions use; Instruct above-mentioned inlet valve and above-mentioned air bleeding valve to switch, above-mentioned adsorption tower is controlled to the control section that vacuum state or pressurized state are used; Whether input signal makes above-mentioned control part judge that valve switches, judge with the turn round stimulus part of usefulness of pressurized state or vacuum state.
Above-mentioned control section make above-mentioned adsorption tower from pressurized state to vacuum state, or carry out the process of conversion to pressurized state from vacuum state, drive some directions of above-mentioned intake valve or above-mentioned air bleeding valve, make adsorption tower and external communications, adsorption tower inside is according to " pressurized state → atmospheric pressure state → vacuum state ", or " vacuum state → atmospheric pressure state → pressurized state " is consistent.
The invention provides and comprise the following control method of respectively forming the oxygen generator in stage: promptly the adsorbent of internal configurations adsorbs nitrogen in extraneous air, separate the adsorption tower that generates oxygen, along with opened the inner stage that keeps atmospheric pressure state of above-mentioned adsorption tower simultaneously with the outside; The above-mentioned adsorption tower inner air of atmospheric pressure state is in the time of outside drain, and desorb is eliminated by the nitrogen of above-mentioned adsorbent, and above-mentioned adsorption tower inner pressure relief becomes the stage of vacuum state; The above-mentioned adsorption tower and the outside of vacuum state are opened, and the inside of above-mentioned adsorption tower keeps the stage of atmospheric pressure state; Extraneous air enters in the above-mentioned adsorption tower of atmospheric pressure state, makes above-mentioned adsorption tower be pressurized to the stage of setting pressure state.
The present invention has following effect:
The first, owing between pressure period and vacuum stages, added the atmospheric pressure stage, thereby shortened the time that arrives the setting pressure state or arrive vacuum state effectively, shortened pressing period and vacuum cycle.
The second, along with arriving the setting pressure state or arrive the shortening of vacuum state time, the present invention can improve setting pressure and vacuum keeping pressing period identical with traditional approach and vacuum during the cycle.
Simultaneously, compare with tradition, the present invention pressurizes in the remaining time because the arrival setting pressure state time is fast, thereby can improve the adsorption tower internal pressure that is directly proportional with oxygen generating capacity and oxygen concentration, can increase the generating capacity and the concentration of oxygen of oxygen.
The 3rd, owing to be under atmospheric pressure state, to become pressurization or vacuum, therefore, can prevent to pressurize and the rapid conversion of vacuum, suppress the impact that air pump moment produces, help to improve the reliability of oxygen generator.
The 4th, can measuring cell in specific gas concentration, regulate the generation and the supply of oxygen, indoor oxygen concentration is kept within the specific limits.
The 5th, according to user's selection, can very main just mutual conversion pressure period and vacuum stages.
Description of drawings
Fig. 1 is the concise and to the point pie graph of conventional oxygen generator; Fig. 2 is the key diagram that the conventional oxygen generator changes according to pressure period and vacuum stages cycle adsorption tower internal pressure; Fig. 3 a, 3b, 3c are the state diagram of first embodiment of the invention oxygen generator operating state explanation usefulness; Fig. 4 is the action sequence diagram of first embodiment of the invention oxygen generator control section and stimulus part; Fig. 5 is different pressure periods of expression first embodiment of the invention oxygen generator and vacuum stages cycle, its adsorption tower pressure inside variation diagram; When Fig. 6 was first embodiment of the invention oxygen generator pressure period and vacuum stages different cycles, its adsorption tower pressure inside changed key diagram; Fig. 7 is the pie graph of second embodiment of the invention oxygen generator; Fig. 8 is the action sequence diagram of second embodiment of the invention oxygen generator control section and stimulus part; Fig. 9 is the oxygen generator control section of the present invention's second example different shape and the action sequence diagram of stimulus part; Figure 10 is the pie graph of third embodiment of the invention oxygen generator.
As shown in the figure, 10,110: air pump; 21,22: triple valve; 40,140: the oxygen exhaust portion; 50,150: check valve; 121: inlet valve; 122: air bleeding valve; 123: pipe arrangement; 30,130: adsorption tower; 170,171,172: control section; 180,181,182: stimulus part; Z: adsorbent.
The specific embodiment
Fig. 3 a, b, c and Fig. 5 below with reference to the appended embodiment of the present invention do following specifying, but these embodiment are not the restriction that the present invention is made.
Fig. 3 a is the schematic diagram of the oxygen generator atmospheric pressure state of employing the present invention the 1st embodiment.Fig. 3 b is the vacuum state schematic diagram of the oxygen generator of employing the present invention the 1st embodiment.Fig. 3 c is for adopting the oxygen generator pressurized state schematic diagram of the present invention the 1st embodiment.
As shown in the figure, the present invention includes and substantially formed by following various piece.The adsorption tower 130 of absorption Z is equipped with in inside; Make above-mentioned adsorption tower 130 become the air pump 110 of pressurization or vacuum state; Connect above-mentioned air pump 110 and above-mentioned adsorption tower 130 side by side, form the pipe arrangement 123 of flow circuits; Be contained in the inlet valve 121 on the above-mentioned air pump inlet end pipe arrangement 123; Be contained in the air bleeding valve 122 on the above-mentioned air pump discharge end pipe arrangement 123; The oxygen discharge unit 140 that is connected with above-mentioned adsorption tower 130 with check valve 150; Instruct above-mentioned intake valve 121 and above-mentioned air bleeding valve 122 to switch, above-mentioned adsorption tower 130 is controlled to the control section 170 of vacuum state or pressurized state; Whether input signal makes above-mentioned control section 170 judge that valves switch, judge with vacuum state or carry out the stimulus part 180 of running and operating with pressurized state.
Especially it is a kind of direction transfer valve of triple valve mode for an above-mentioned inlet valve 121.It is stayed with to adsorption tower 130 ends and outside 0 end, adsorption tower 130 ends and air pump 110 ends, and outside 0 end is selected respectively to be communicated with air pump 110 ends.
Simultaneously, the above-mentioned air bleeding valve 122 direction transfer valve that also is a kind of triple valve mode.It can be to adsorption tower 130 ends and outside 0 end, air pump 110 ends and outside 0 end, and air pump 110 ends and adsorption tower 130 ends are selected respectively to be communicated with.
The direction of above-mentioned inlet valve 121 and air bleeding valve 122 is switched controlled part 170 controls, is connected with stimulus part 180 on the above-mentioned control section 170.
Above-mentioned here stimulus part 180 uses as the timer of input time.The time value and the setting value of 170 pairs of above-mentioned timer inputs of above-mentioned control section compare, and switch inlet valve 121 and air bleeding valve 122, make it become pressurized state or vacuum state.
Fig. 4 is the oxygen generator control part of employing the present invention the 1st embodiment and the action sequence diagram of signal input part.With reference to Fig. 4, control part 170 and being used as further of signal input part 180 are specified.
When oxygen generator moved, inlet valve 121 and air bleeding valve 122 were held or are switched, and make oxygen generator become atmospheric pressure state.Signal input part 180 begins to carry out time counting, and before the atmospheric pressure retention time Ta that above-mentioned signal input part 180 gate times and control part 170 are set was consistent, oxygen generator remained atmospheric pressure state.
That is to say in the atmospheric pressure retention time Ta that control part 170 is set, keeping atmospheric pressure state.
When above-mentioned signal input part 180 gate times and atmospheric pressure retention time Ta become when consistent, inlet valve 121 and air bleeding valve 122 switch, and become vacuum state, enter vacuum stages.
At this moment, the gate time count resets of above-mentioned signal input part 180 is counted again.Before the vacuum state retention time Tv that the time of above-mentioned signal input part 180 countings and control part 170 are set was consistent, oxygen generator remained vacuum state, and its result in the vacuum state retention time Tv of control part 170 settings, enters vacuum stages.
If the time of above-mentioned signal input part 180 countings and vacuum state retention time Tv become when consistent, inlet valve 121 and air bleeding valve 122 switch, and become atmospheric pressure state again.At this moment, with narrate previously the same, in the atmospheric pressure retention time Ta that control part 170 is set, oxygen generator remains atmospheric pressure state.
If it is consistent that the time of above-mentioned signal input part 180 countings and atmospheric pressure retention time Ta become, so, inlet valve 121 and air bleeding valve 122 just switch, and become pressurized state, enter the pressure period.
At this moment, the time counting of above-mentioned signal input part 180 resets, again counting.Before the pressurized state retention time Tc that the time of above-mentioned signal input part 180 countings and control part 170 are set was consistent, oxygen generator remained pressurized state, so in the pressurized state retention time Tc of control part 170 settings, enter the pressure period.
At last, above-mentioned each stage of the present invention the 1st embodiment has constituted one-period, carries out again and again.
A little concrete introductions are done in the effect of the oxygen generator of the present invention that proposes according to this composition.
Begin oxygen generator of the present invention shown in Fig. 3 a, under the control action of control part 170, inlet valve 121 is connected with outside 0 end with adsorption tower 130 ends, and simultaneously, air bleeding valve 122 also is connected with outside 0 end with adsorption tower 130 ends.
Then, above-mentioned adsorption tower 130 with external opening, makes above-mentioned adsorption tower 130 inside remain atmospheric pressure state through inlet valve 121 and air bleeding valve 122.
Then, in the setting-up time Ta of control part 170, after being retained as atmospheric pressure state, shown in Fig. 3 b, control action by control part 170, above-mentioned inlet valve 121 to adsorption tower 130 ends with air pump 110 end-grain cutting change, be connected, meanwhile, air bleeding valve 122 also changes, is connected with outside 0 end-grain cutting to air pump 110 ends.
Like this, air pump 110 is started, and is subjected to the effect of above-mentioned air pump 110 air inlet power, above-mentioned adsorption tower 130 inner suck air, and vacuum state reduces pressure in the time of outside drain.
At this moment, be adsorbed on nitrogen on the adsorbent Z under air pump 110 air inlet power effects, throw off above-mentioned adsorbent Z, order is through intake valve 121, air pump 110 and air bleeding valve 122, to outside drain.
The above-mentioned vacuum stages of denitrogenation of the present invention particularly, its adsorption tower 130 is an atmospheric pressure state, therefore, as shown in Figure 5, compares with tradition, the time that above-mentioned adsorption tower 130 arrives vacuum states has been shortened.
And meanwhile, the nitrogen desorb that above-mentioned adsorbent Z is adsorbed makes above-mentioned adsorbent Z regeneration, thereby adsorbs nitrogen again, separates generation oxygen and becomes a kind of possibility.
As previously mentioned, in the vacuum time Tv that control part 170 is set, finish after the vacuum stages, shown in Fig. 3 a, controlled 180 control action, above-mentioned intake valve 121 connects adsorption tower 130 ends and outside 0 end once more.Meanwhile, air bleeding valve 122 also reconnects adsorption tower 130 ends and outside 0 end, and therefore, above-mentioned adsorption tower 130 is by intake valve 121 and air bleeding valve 122, and with external opening, air pump 110 stops.
Then, extraneous air enters inside by above-mentioned intake valve 121 and above-mentioned air bleeding valve 122, thereby above-mentioned adsorption tower 130 inside remain atmospheric pressure state once more in the atmospheric pressure retention time Ta that control part 170 is set.
Next shown in Fig. 3 c, controlled 170 control action, above-mentioned intake valve 121 changes, is connected with air pump 110 end-grain cutting to outside 0 end, and meanwhile, air bleeding valve 122 switches, and connects air pump 110 ends and adsorption tower 130 ends, air pump 110 startings.
The extraneous air of above-mentioned air pump 110 compressions passes through intake valve 121, air pump 110 and air bleeding valve 122 successively, flows to adsorption tower 130 inside.In control part 170 is set pressing time Tc, make above-mentioned adsorption tower 130 from atmospheric pressure state, add the setting pressure state that is pressed into.
At this moment, be included in nitrogen in the extraneous air, separate generating oxygen along with the absorption of adsorbent Z.
Like this, separate the oxygen process check valve 150 that generates, outwards discharge from oxygen discharge portion 140.
Particularly the present invention is separating the above-mentioned pressure period that generates oxygen, and its adsorption tower 130 is an atmospheric pressure state, so, as shown in Figure 5, to compare with tradition, the time that above-mentioned adsorption tower 130 arrives the setting pressure state has been shortened.
From above narration as can be known, the present invention carries out above-mentioned each stage action successively repeatedly, promptly carries out repeatedly atmospheric pressure stage-vacuum stages-atmospheric pressure stage-pressure period, comes oxygenous.
When can accomplishing to shorten the pressure period, the present invention that hence one can see that arrives the time of setting pressure state, and the time that arrives vacuum state during vacuum stages.
If set Tc and vacuum time Tv pressing time with the cycle identical with traditional approach, so, the present invention can improve the setting pressure and the vacuum of oxygen generator.
Simultaneously, because the oxygen generating capacity of oxygen generator and oxygen concentration and adsorption tower 130 pressure inside have proportionate relationship, therefore, the present invention can also make oxygen generating capacity and oxygen concentration be increased.
Fig. 6 shows different pressure periods of the present invention's the 1st embodiment oxygen generator and its adsorption tower pressure inside situation of change of vacuum stages cycle.
Arrive the setting pressure state from the pressure period among the present invention, and be shortened situation from the time that vacuum stages arrives vacuum state, as mentioned above.
As shown in Figure 6, be benchmark with pressurization identical and vacuum effectiveness with traditional approach, when using oxygen generator of the present invention, also can shorten pressing period and vacuum cycle.
Below the oxygen generator that adopts the present invention the 2nd embodiment is illustrated.
Fig. 7 is the composition diagram of the oxygen generator of employing the present invention the 2nd embodiment.As shown in FIG., adopt whole composition of oxygen generator of the present invention the 2nd embodiment, identical with aforesaid the present invention the 1st embodiment, just instruct the switching of intake valve 121 and air bleeding valve 122 in this example, above-mentioned adsorption tower 130 is controlled to the control section 171 and the input signal of vacuum state or pressurized state, make above-mentioned control section 171 judge the switching of valves, judgement is with the turn round stimulus part 181 of usefulness of vacuum state or pressurized state, and its feature is arranged.
Fig. 8 is the control section of the oxygen generator of employing the present invention the 2nd embodiment and the action sequence diagram of stimulus part.
That is to say stimulus part 181, is gas concentration in the sensing chamber, the gas sensor that the output gas concentration is used.Control section 171 be make have the gas sensor function, concentration value and the setting value of above-mentioned signal input part 181 input compare, switching intake valve 121 and air bleeding valve 122, but make its one-tenth pressurized state or vacuum state.
Especially the above-mentioned stimulus part 181 among the present invention can be selected the gas of multiple detection, and in the present embodiment, is an example to detect carbon dioxide, describes.
If the beginning oxygen generator puts into operation, so, intake valve 121 and air bleeding valve 122 just keep or switch, and make oxygen generator become vacuum state.After entering vacuum stages, stimulus part 181 is the gas concentration lwevel in the measuring cell.
At this moment, if the indoor carbon dioxide concentration that above-mentioned stimulus part 181 is measured surpasses the carbon dioxide maximum concentration setting value that control section 171 is set, so, control section 171 will switch intake valve 121 and air bleeding valve 122, make oxygen generator become pressurized state.
In other words, the gas concentration lwevel that above-mentioned stimulus part 181 is measured increases, and just means that indoor oxygen concentration correspondingly reduces, so, will increase indoor oxygen concentration.
Equally, during entering the pressure period, the gas concentration lwevel that stimulus part 181 continues in the measuring cell.If the indoor carbon dioxide concentration that records is lower than the carbon dioxide least concentration setting value that control section 171 is set, so, control section 171 will switch intake valve 121 and air bleeding valve 122, make oxygen generator become vacuum state.
The gas concentration lwevel that above-mentioned stimulus part 181 is measured reduces, and just means that indoor oxygen concentration correspondingly improves, so, will suitably reduce indoor oxygen concentration.
In other words, this example has been set the scope of carbon dioxide maximum concentration and carbon dioxide least concentration, in above-mentioned gas concentration lwevel scope, carries out the action of pressure period and vacuum stages repeatedly, therefore, can make the gas concentration lwevel of indoor maintenance the best.
Fig. 9 is the oxygen generator control section of the other form of the present invention the 2nd embodiment and the action sequence diagram of stimulus part.
As shown in FIG., the different shape of the present invention's the 2nd example is by the gas concentration lwevel in stimulus part 181 sensing chamber equally, the gas concentration lwevel value that 171 pairs of above-mentioned stimulus parts 181 of control section are measured and the concentration value of setting compare, if indoor gas concentration lwevel surpasses the highest setting value, just carry out the pressure period action, separate generating oxygen.If indoor carbon dioxide concentration is lower than minimum setting value, just carry out the vacuum stages action, subtract denitrogenation gas.
The other form of the 2nd embodiment particularly, its oxygen generator changes to vacuum state from pressurized state according to the concentration value of setting, or from vacuum state when pressurized state changes, all be through atmospheric pressure state.
Oxygen generator constitutes the one-period circulation with atmospheric pressure state → vacuum state → atmospheric pressure state → pressurized state to carry out repeatedly, therefore, can make the oxygen concentration of indoor maintenance optimum state.
Simultaneously, at above-mentioned control section 171 from pressurized state to the vacuum state conversion, or from vacuum state when the pressurized state conversion, along with the atmospheric pressure state of process, the 1st embodiment introduces as the front, and the time time and that arrive vacuum state that arrives the setting pressure state also can shorten.
Below the oxygen generator that adopts the present invention the 3rd embodiment is illustrated.
Figure 10 is the composition diagram of the oxygen generator of employing the present invention the 3rd embodiment.As shown in FIG., adopt the whole formation of oxygen generator of the present invention the 3rd embodiment, with aforementioned the 1st embodiment of the present invention, the 2nd embodiment is the same, just in the present embodiment, and the switching of instruction intake valve 121 and air bleeding valve 122, above-mentioned adsorption tower 130 is controlled to the control section 171 of vacuum state or pressurized state, and input signal makes above-mentioned control section 171 judge the switching of valves, judge the stimulus part 181 that whether turns round with vacuum state or pressurized state, and its feature is arranged.
Below the oxygen generator that adopts the present invention the 3rd embodiment is illustrated.
Adopt the whole composition of oxygen generator of the present invention the 3rd embodiment also the same with aforementioned the 1st example of the present invention with action.The characteristics of this embodiment are, stimulus part 182 is made up of keying input, and the user can select pressurized state or vacuum state.Control section 172 decides with pressurized state according to the input value of above-mentioned stimulus part 182 and turns round or turn round with vacuum state.
In other words, be subjected to the input action of keying importation signal input part 182, its control part 172 determines the switching of valve with the variation of above-mentioned signal input part 182 input values, the user can change to vacuum state from pressurized state selectively, perhaps changes to pressurized state with vacuum state.
Change according to the input of signal input part 182, oxygen generator from pressurized state when vacuum state changes, and from vacuum state when pressurized state changes, what the 3rd embodiment of the present invention too will be through atmospheric pressure state.So with aforesaid the 1st embodiment, it is the same that the 2nd embodiment is introduced, and equally also can shorten the time that arrives the setting pressure state, or shorten the time that arrives vacuum state.
Claims (7)
1, a kind of control device of oxygen generator is characterized in that it comprises following each part:
Inner filled with adsorbent is adsorbed nitrogen from leaked-in air, emit the adsorption tower of oxygen;
Above-mentioned adsorption tower is pressurizeed or the air pump of vacuum action;
Connect above-mentioned adsorption tower and above-mentioned air pump side by side, form the pipe arrangement of the gas circuit that flows;
Be positioned at above-mentioned air pump air inlet and be contained in above-mentioned pipe arrangement top, atmospheric pressure environment externally, in three directions of air pump air inlet adsorption tower, being communicated with the triple valve that two directions use selectively is intake valve;
Be positioned at above-mentioned air pump exhaust outlet and be contained in above-mentioned pipe arrangement top, atmospheric pressure environment externally in three directions of air pump exhaust outlet and adsorption tower, is communicated with the air bleeding valve of the triple valve that two directions use selectively;
Instruct the switching of above-mentioned intake valve and above-mentioned air bleeding valve, above-mentioned adsorption tower is controlled to the control section that vacuum state or pressurized state are used;
Input signal makes above-mentioned control section judge that valve switches, and judgement is with the vacuum state running or with the moving stimulus part of migrating of pressurized state.
2, according to the control device of the said oxygen generator of claim 1, it is characterized in that said control section at above-mentioned adsorption tower from pressurized state to the vacuum state conversion, or from vacuum state to the pressurized state conversion process, drive certain direction of above-mentioned intake valve or above-mentioned air bleeding valve, make adsorption tower and external communications, the inside of adsorption tower then with " pressurized state → atmospheric pressure state → vacuum state ", " or vacuum state → atmospheric pressure state → pressurized state " is consistent.
3, according to the control device of the said oxygen generator of claim 1, it is characterized in that said stimulus part uses as the timer of input time, said control section compares the time value and the setting value of said timer input, switch inlet valve and air bleeding valve, make it become pressurized state or vacuum state.
4, according to the control device of the said oxygen generator of claim 1, it is characterized in that said stimulus part is a gas concentration in the sensing chamber, said control section be make have the gas sensor function, the concentration value and the setting value of above-mentioned signal input part input compare, switch intake valve and air bleeding valve, but make its one-tenth pressurized state or vacuum state.
5,, it is characterized in that gas concentration is to detect gas concentration lwevel in the said sensing chamber according to the control device of the said oxygen generator of claim 4.
6, according to the control device of the said oxygen generator of claim 1, it is characterized in that said stimulus part is made up of keying input, said control section decides according to the input value of said stimulus part, the switching of decision valve is turned round or is turned round with vacuum state with pressurized state.
7, the control method of the control device of the said oxygen generator of claim 1, it is characterized in that comprising the steps: to be that the adsorbent of internal configurations adsorbs nitrogen in extraneous air, separate the adsorption tower that generates oxygen, along with opened the inner stage that keeps atmospheric pressure state of above-mentioned adsorption tower simultaneously with the outside; The above-mentioned adsorption tower inner air of atmospheric pressure state is in the time of outside drain, and desorb is eliminated by the nitrogen of above-mentioned adsorbent, and above-mentioned adsorption tower inner pressure relief becomes the stage of vacuum state; The above-mentioned adsorption tower and the outside of vacuum state are opened, and the inside of above-mentioned adsorption tower keeps the stage of atmospheric pressure state; Extraneous air enters in the above-mentioned adsorption tower of atmospheric pressure state, makes above-mentioned adsorption tower be pressurized to the stage of setting pressure state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136372 CN1246067C (en) | 2001-10-12 | 2001-10-12 | Control device of oxygen gas generator and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136372 CN1246067C (en) | 2001-10-12 | 2001-10-12 | Control device of oxygen gas generator and its control method |
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| CN1411895A true CN1411895A (en) | 2003-04-23 |
| CN1246067C CN1246067C (en) | 2006-03-22 |
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| CN 01136372 Expired - Fee Related CN1246067C (en) | 2001-10-12 | 2001-10-12 | Control device of oxygen gas generator and its control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970315A (en) * | 2019-03-08 | 2019-07-05 | 同济大学 | A kind of High Efficiency Thermal hydrolysis apparatus and method of municipal sludge |
| CN110200189A (en) * | 2019-07-02 | 2019-09-06 | 池州山立分子筛有限公司 | Portable freshness-retaining device and preservation method |
| CN111148429A (en) * | 2017-09-29 | 2020-05-12 | 大金工业株式会社 | Air conditioner in warehouse |
| CN114733317A (en) * | 2022-05-10 | 2022-07-12 | 威海柏林圣康空氧科技有限公司 | Multi-level molecular sieve adsorption tower device |
-
2001
- 2001-10-12 CN CN 01136372 patent/CN1246067C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111148429A (en) * | 2017-09-29 | 2020-05-12 | 大金工业株式会社 | Air conditioner in warehouse |
| CN109970315A (en) * | 2019-03-08 | 2019-07-05 | 同济大学 | A kind of High Efficiency Thermal hydrolysis apparatus and method of municipal sludge |
| CN110200189A (en) * | 2019-07-02 | 2019-09-06 | 池州山立分子筛有限公司 | Portable freshness-retaining device and preservation method |
| CN114733317A (en) * | 2022-05-10 | 2022-07-12 | 威海柏林圣康空氧科技有限公司 | Multi-level molecular sieve adsorption tower device |
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| Publication number | Publication date |
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| CN1246067C (en) | 2006-03-22 |
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