CN101898067A - Gas purifier and regeneration method of molecular sieve thereof - Google Patents
Gas purifier and regeneration method of molecular sieve thereof Download PDFInfo
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- CN101898067A CN101898067A CN 201010233688 CN201010233688A CN101898067A CN 101898067 A CN101898067 A CN 101898067A CN 201010233688 CN201010233688 CN 201010233688 CN 201010233688 A CN201010233688 A CN 201010233688A CN 101898067 A CN101898067 A CN 101898067A
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- 239000002808 molecular sieve Substances 0.000 title claims abstract description 126
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 238000011069 regeneration method Methods 0.000 title abstract description 27
- 239000012535 impurity Substances 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 39
- 230000008569 process Effects 0.000 claims abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 225
- 230000001172 regenerating effect Effects 0.000 claims description 26
- 238000010926 purge Methods 0.000 claims description 16
- 238000013022 venting Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000012512 characterization method Methods 0.000 claims description 4
- 238000009418 renovation Methods 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 230000008929 regeneration Effects 0.000 abstract description 25
- 238000005273 aeration Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000004868 gas analysis Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000002045 lasting effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The embodiment of the invention provides a gas purifier and a regeneration method of a molecular sieve thereof, the gas purifier comprises a cavity body of the gas purifier, wherein a gas inlet is arranged at one end of the cavity body of the gas purifier, a gas outlet is arranged at the other end, the molecular sieve is filled in the cavity body of the purifier, a heating device is arranged on the on the outer wall of the cavity body of the gas purifier, the gas purifier simultaneously comprises a temperature sensor, a temperature measuring probe of the temperature sensor is inserted into the molecular sieve, the gas purifier further comprises a controller which is respectively connected with the heating device and the temperature sensor, and the controller is used for controlling the heating device and triggering the control of the gas inlet and the gas outlet to carry out aeration and exhaust on the interior of the cavity body of the gas purifier through the temperature returned by the temperature sensor, thereby completing the regeneration process. The use of the embodiment of the invention can complete the regeneration of the molecular sieve in the gas purifier without independently taking out the molecular sieve, thereby simplifying the regeneration process, avoiding the contact between the molecular sieve and impurities in the air during the regeneration process and improving the effectiveness of the molecular sieve.
Description
Technical field
The present invention relates to the gas analysis technology field, relate in particular to a kind of gas purifier and regenerating molecular sieve method thereof.
Background technology
The current gas analysis instrument of often using in industry spot or laboratory carries out gas analysis; stating gas analysis instrument in the use carries out before the gas analysis; capital using gases clarifier purifies the gas that will analyze, reduces in the reasonable range with the objectionable impurities in the gas componant that guarantees to analyze.
Purify the gas that to analyze and use the gas purifier that has molecular sieve usually, be illustrated in figure 1 as gas purifier structural representation commonly used in the prior art, this gas purifier that has molecular sieve comprises a gas purifier cavity 12, this cavity one end is provided with gas access 11, the other end is provided with gas vent 14, install in this gas purifier cavity 12 and have the molecular sieve 13 of characterization of adsorption, by being communicated with gas to be analyzed is imported in the gas purifier cavity 12 during Purge gas in the gas access of gas purifier cavity one end, use the characteristic of molecular sieve 13 absorption, adsorb in the gas to be analyzed a spot of gaseous impurity (as CO
2, H
2O, C
nH
mDeng), make that gaseous impurity content reduces in the zone of reasonableness in the gas componant to be analyzed, derive the gas that is used to analyze after being purified again by the gas vent 14 that connects gas purifier cavity 12 other ends.Gas access described in the above-mentioned gas clarifier purifies the inlet of the employed gas to be analyzed of analytical instrument for adopting gas purifier, described gas vent purifies the outlet of the employed gas to be analyzed of analytical instrument for adopting gas purifier, and related gas access, gas vent all limits for this reason in the literary composition in the back.
State the gas purifier continuous purification gas after a period of time that has molecular sieve in the use, the molecular sieve adsorption impurity in the gas purifier will reach capacity, and loses its purification function.Need take out the molecular sieve in the gas purifier this moment, is put in the high temperature oven of regenerating molecular sieve special use to carry out high temperature regeneration, molecular sieve installed back in the gas purifier behind the high temperature regeneration again, and gas purifier just can be proceeded gas purification afterwards.
This its regenerating molecular sieve process need of gas purifier that has molecular sieve that often uses in the prior art takes out molecular sieve earlier, the molecular sieve that takes out also will install back in the gas purifier after regenerating through special-purpose high temperature equipment again, and the process of replacing is pretty troublesome.Simultaneously carrying out the employed gas purifier of gas analysis in reality needs long-time running, and the regenerative operation process of this molecular sieve can have influence on the normal operation of gas analysis system.Last this molecular sieve is in dismounting regeneration and the airborne CO that gets along well of the molecular sieve after being difficult to guarantee regeneration in the installation process again
2, H
2Impurity such as O contacts, can make like this after the regeneration molecular sieve inevitably absorption advance airborne impurity, make molecular sieve reinstall the suction-operated that is risen behind the return-air body clarifier and reduce greatly, thereby reduced the effectiveness of gas purifier.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of gas purifier and regenerating molecular sieve method thereof,, simplified the process of regenerating molecular sieve so that employed gas purifier need not dismantled molecular sieve and can finish regeneration in the gas analysis process.
For achieving the above object, the embodiment of the invention provides a kind of gas purifier, comprise the gas purifier cavity, wherein gas purifier cavity one end is provided with the gas access, the other end is provided with gas vent, the clarifier inside cavity is filled has the molecular sieve of characterization of adsorption, at the gas purifier chamber outer wall heater is housed, comprise a temperature sensor simultaneously, the temperature probe of this temperature sensor is inserted into molecular sieve inside in the gas purifier cavity, also comprise a controller that is connected with temperature sensor with heater respectively, this controller control heater returns the temperature that temperature probe detects to the molecular sieve heating and by coupled temperature sensor, when this temperature reach regenerating molecular sieve temperature required after, controller triggers heater and keeps this temperature heating a period of time, and controller is controlled at that in gas access on the gas purifier cavity and the gas vent one feeds gas in the gas purifier cavity and by another discharge in gas access and the gas vent afterwards.
The embodiment of the invention also provides a kind of method of using the above-mentioned gas clarifier to realize its regenerating molecular sieve, and this method comprises:
Start heater by controller and give the heating of gas purifier cavity, and return its temperature probe by the temperature sensor that links to each other with controller and detect heating-up temperature to reach regenerating molecular sieve temperature required;
Heating-up temperature to regenerating molecular sieve temperature required after, controller triggers heater to be continued heating and keeps this temperature a period of time thoroughly to separate with magazine until molecular sieve, heater is closed in controller control afterwards;
A gas access and a feeding in the gas vent that the while controller is controlled on the gas purifier cavity are used for purging the gas of impurity under the molecular sieve high temperature released state to the gas purifier cavity, by the gas vent on the gas purifier cavity and another discharge in the gas access, whole venting process lasts till that the gas purifier cavity slowly cools off.
This shows, the gas purifier that provides according to the embodiment of the invention and the renovation process of molecular sieve thereof, the principle of utilizing molecular sieve at high temperature to separate with impurity, at the gas purifier chamber outer wall heater is housed directly, thereby controlling its heating molecular sieve by controller makes molecular sieve and impurity be in released state and feeds gas purging to go out impurity and finish regeneration, therefore in the regenerating molecular sieve process, do not need to take out separately again molecular sieve and install back again in the gas purifier cavity afterwards, reduced inevitably touching in the air impurity in this process the influence of molecular sieve adsorption effect with the specialized apparatus high temperature regeneration.Significantly reduce the workload that the user of service regenerates to molecular sieve simultaneously, improved the service efficiency of gas purifier again, also reduced the expense cost of regenerated molecular sieve, realized the regeneration and the use of molecular sieve simple and fast in the gas purifier.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the basic structure schematic diagram of gas purifier commonly used in the prior art;
Fig. 2 is the gas purifier structural representation that the embodiment of the invention one provides;
Fig. 3 is the gas purifier regenerating molecular sieve method flow diagram that the embodiment of the invention two provides;
Fig. 4 is the gas purifier regenerating molecular sieve method flow diagram that the embodiment of the invention three provides.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment one
As shown in Figure 2, Fig. 2 is the schematic diagram of an embodiment of a kind of gas purifier provided by the invention, and this gas purifier comprises a gas purifier cavity 22.
For the present invention, because heating-up temperature is than higher in the regenerating molecular sieve process, the material of gas purifier cavity 22 is preferably selected stainless material for use, and the cutting ferrule joint that gas access 21 is connected with gas vent 24 is also preferably selected stainless steel cutting ferrule joint for use.The selection of the cutting ferrule joint material that above gas purifier cavity, air inlet are connected with the gas outlet all is not limited to stainless steel, can also be other exotic material.
Present embodiment as shown in Figure 2, heated gas purifier is to the heat radiation of external environment condition in the heating process in order to be reduced in, and raising adds thermal effect, can heat-insulation layer 26 be arranged in heater strip 25 outer wrap, the material of this heat-insulation layer is preferably mineral wool, can also be other insulation material.
The present invention's gas purifier cavity 22 as shown in Figure 2 is the axially symmetric structure body, and concrete structure is not limited to cylinder, can also be that the cross section is the structures such as cuboid of rectangle.
This gas purifier can carry out the regeneration of molecular sieve in the following way:
Because the molecular sieve molecular motion at high temperature aggravation that absorption impurity reaches capacity, impurity molecule separates with molecular sieve easily, therefore start heating power supply 27 by controller 20, give the heating of gas purifier cavity 22 high temperature by the heater strip 25 that is connected with heating power supply 27.Because different molecular sieves separates temperature required different with its adsorbed impurity, so by the temperature sensor 28 that is connected with controller 20 return its detect gas purifier cavity 22 interior molecules sieve 23 be heated reach regenerating molecular sieve temperature required after, controller triggers the lasting heating of heater makes the interior molecular sieve of gas purifier cavity keep this temperature a period of time thoroughly to separate with magazine until molecular sieve 23, and this moment, controller 20 control heating power supplies 27 were closed.
The impurity of this moment molecular sieve and its absorption is in the state that separates by the effect of high temperature heating, thereby feed gas by controller control and impurity can be purged out the regeneration that the gas purifier cavity is finished molecular sieve, specifically feeding the gas mode has following two kinds:
1, controller 20 is controlled at gas access 21 on the gas purifier cavity 22 and feeds and be used for purging the using gases that is in released state impurity under the high temperature with molecular sieve, and discharge the using gases that has impurity by the gas vent on gas purifier cavity 22 24, whole venting process lasts till that the gas purifier cavity slowly cools off.
This using gases is the employed gas to be analyzed of analytical instrument before adopting gas purifier to purify.
2, controller 20 is controlled at gas vent 24 on the gas purifier cavity 22 and oppositely feeds and be used for purging the high-purity gas that is in released state impurity under the high temperature with molecular sieve, and discharge the high-purity gas that has impurity by the gas access on gas purifier cavity 22 21, whole venting process lasts till that the gas purifier cavity slowly cools off.
This high-purity gas is meant the gas of impurity concentration less than 10ppm, because high pure nitrogen is easy to acquisition and low price, so this high-purity gas is preferably high pure nitrogen.
Embodiment two
As shown in Figure 3, be the regenerating molecular sieve method that the embodiment of the invention provides a kind of gas purifier, the gas purification apparatus that relates to described in this method implementation process is referring to shown in the accompanying drawing 2, and this regenerating molecular sieve method may further comprise the steps:
Step 31: start heating power supply 27 by controller 20, give the gas purifier cavity 22 heating by the heater strip that is connected with heating power supply 27 25, continue to be heated to and return the gas purifier cavity 22 interior molecules sieve temperature that its temperature probe 28a that probes into molecular sieve 23 inside detected by the temperature sensor 28 that is connected with controller 20 and reach the needed temperature of molecular sieve high temperature regeneration.
Because the molecular sieve molecular motion at high temperature aggravation that absorption impurity reaches capacity, so after molecular sieve was heated to uniform temperature according to above-mentioned steps, impurity and molecular sieve will reach released state because of the molecular motion aggravation.
In the practical application, different molecular sieves is after absorption impurity reaches capacity, and high temperature regeneration is temperature required to be different, and this temperature range is generally the 50-400 degree, and is preferably 300 degree.
Step 32: detect its temperature that temperature probe detected that probes into molecular sieve 23 inside after reaching the needed temperature of molecular sieve high temperature regeneration by temperature sensor 28 by 27 heating of controller 20 control heating power supplies are feasible, controller triggers heater and keeps this temperature certain time thoroughly to separate with impurity until molecular sieve, and heating power supply 27 is closed in controller 20 controls afterwards.
Because the heating molecular sieve makes the molecular sieve temperature reach regeneration when temperature required, this moment, molecular sieve just began to separate with impurity, so kept molecular sieve according to above-mentioned steps and reach certain hour in this temperature, made the adsorbed impurity of molecular sieve and its thoroughly separate.Be generally 1-3 hour this lasting heat time heating time in the practical application, and be preferably 2 hours.
Step 33: the gas access 21 that controller 20 is controlled on the gas purifier cavity 22 feeds the using gases that is used for purging molecular sieve 23 high temperature removing impurities, and by 24 discharges of the gas vent on gas purifier cavity 22, whole venting process lasts till that gas purifier cavity 22 slowly cools off.
Because by step 31 and step 32 heating molecular sieve reach regeneration temperature required and keep a period of time after, impurity adsorbed on the molecular sieve is in released state completely with molecular sieve, feed impurity that gas purging be in released state according to above-mentioned steps this moment, and impurity can be taken out of the gas purifier cavity together along with the discharge that feeds gas.
In actual applications, described using gases is the gas to be analyzed that analytical instrument is used before adopting gas purifier to purify, and directly purges the impurity that molecular sieve separates with using gases.So just do not need to change gas cylinder, thus easier realization regenerating molecular sieve.
Embodiment three
Shown in flow chart in the accompanying drawing 4, the embodiment of the invention also provides a kind of renovation process of its molecular sieve of gas purifier, and the gas purification apparatus that relates to described in this method implementation process is referring to shown in the accompanying drawing 2, and this regenerating molecular sieve method may further comprise the steps:
Step 41: start heating power supply 27 by controller 20, give the gas purifier cavity 22 heating by the heater strip 25 that heating power supply 27 connects, continue to be heated to and return the gas purifier cavity 22 interior molecules sieve temperature that its temperature probe 28a that probes into molecular sieve 23 inside detected by the temperature sensor 28 that is connected with controller 20 and reach the needed temperature of molecular sieve high temperature regeneration.
Because the molecular sieve molecular motion at high temperature aggravation that absorption impurity reaches capacity, so after molecular sieve was heated to uniform temperature according to above-mentioned steps, impurity and molecular sieve will reach released state because of the molecular motion aggravation.
In the practical application, different molecular sieves is after absorption impurity reaches capacity, and high temperature regeneration is temperature required to be different, and this temperature range is generally the 50-400 degree, and is preferably 300 degree.
Step 42: make that by 27 heating of controller 20 control heating power supplies detecting its gas purifier cavity 22 interior molecules that temperature probe detected that probe into molecular sieve 23 inside by temperature sensor 28 sieves temperature after reaching the needed temperature of molecular sieve high temperature regeneration, controller triggers heater and keeps this temperature certain time thoroughly to separate with impurity until molecular sieve, and heating power supply 27 is closed in controller 20 controls afterwards.
Because the heating molecular sieve makes the molecular sieve temperature reach regeneration when temperature required, this moment, molecular sieve just began to separate with impurity, so kept molecular sieve according to above-mentioned steps and reach certain hour in this temperature, made the adsorbed impurity of molecular sieve and its thoroughly separate.Be generally 1-3 hour this lasting heat time heating time in the practical application, and be preferably 2 hours.
Step 43: the gas vent 24 that controller 20 is controlled on the gas purifier cavity 22 oppositely feeds the high-purity gas that is used for purging molecular sieve 23 high temperature removing impurities, and by 21 discharges of the gas access on gas purifier cavity 22, whole venting process lasts till that gas purifier cavity 22 slowly cools off.
Because by step 41 and step 42 heating molecular sieve reach regeneration temperature required and keep one section duration after, impurity adsorbed on the molecular sieve is in released state completely with molecular sieve, oppositely feed high-purity gas according to above-mentioned steps and purge the impurity that is in released state this moment, and impurity can be taken out of the gas purifier cavity together along with the discharge that feeds high-purity gas.
In actual applications, oppositely feed gas and feed gas, purge the better effects if of molecular sieve removing impurities with respect to forward.Described high-purity gas is the gas of impurity concentration less than 10ppm, and the high-purity gas purity that feeds high more good more to purging the impurity effect, in the practical application high pure nitrogen be easy to obtain and price the most cheap, so preferred high pure nitrogen is as the gas that purges molecular sieve high temperature removing impurities.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. gas purifier, comprise the gas purifier cavity, wherein gas purifier cavity one end is provided with the gas access, the other end is provided with gas vent, the clarifier inside cavity is filled has the molecular sieve of characterization of adsorption, it is characterized in that: heater is housed at the gas purifier chamber outer wall, comprise a temperature sensor simultaneously, the temperature probe of this temperature sensor is inserted into molecular sieve inside in the gas purifier cavity, also comprise a controller that is connected with temperature sensor with heater respectively, this controller control heater returns the temperature that temperature probe detects to the molecular sieve heating and by coupled temperature sensor, when this temperature reach regenerating molecular sieve temperature required after, controller triggers heater and keeps this temperature heating a period of time, and of being controlled in gas access on the gas purifier cavity and the gas vent of controller feeds gas in the gas purifier cavity afterwards, and by another discharge in gas access and the gas vent.
2. gas purifier according to claim 1 is characterized in that: described gas access, gas vent all are connected with the cutting ferrule joint.
3. gas purifier according to claim 2 is characterized in that: the cutting ferrule joint material that gas purifier cavity wall and gas access, gas vent connect is exotic material.
4. gas purifier according to claim 1 is characterized in that: described heater outer wrap has heat-insulation layer.
5. gas purifier according to claim 4 is characterized in that: described heat-insulation layer is the mineral wool heat-insulation layer.
6. gas purifier according to claim 1 is characterized in that: described gas purifier cavity is the axially symmetric structure body.
7. gas purifier according to claim 1 is characterized in that: described heater is an electrical heating wire.
One kind as claim 1 to 7 arbitrary as described in the renovation process of molecular sieve of gas purifier, it is characterized in that this method comprises:
Start heater by controller and give the heating of gas purifier cavity, and return its temperature-measuring part by the temperature sensor that links to each other with controller and detect the molecular sieve temperature and be heated that to reach regenerating molecular sieve temperature required;
Heating-up temperature to regenerating molecular sieve temperature required after, controller triggers heater to be continued heating and keeps this temperature a period of time thoroughly to separate with impurity until molecular sieve, heater is closed in controller control afterwards;
A gas access and a feeding in the gas vent that the while controller is controlled on the gas purifier cavity are used for purging the gas of impurity under the molecular sieve high temperature released state to the gas purifier cavity, by the gas vent on the gas purifier cavity and another discharge in the gas access, whole venting process lasts till the cooling of clarifier cavity.
9. regenerating molecular sieve method according to claim 8, it is characterized in that: the gas access feeding that controller is controlled on the gas purifier cavity is used for purging the using gases of molecular sieve impurity under the high temperature released state to the gas purifier cavity, discharge by the gas vent on the gas purifier cavity, whole venting process lasts till that the gas purifier cavity slowly cools off; Described using gases is the employed gas to be analyzed of analytical instrument before adopting gas purifier to purify.
10. regenerating molecular sieve method according to claim 8, it is characterized in that: the reverse feeding of gas vent that controller is controlled on the gas purifier cavity is used for purging the high-purity gas of molecular sieve impurity under the high temperature released state to the gas purifier cavity, discharge by the gas access on the gas purifier cavity, whole venting process lasts till that the gas purifier cavity slowly cools off; Described high-purity gas is the gas of impurity concentration less than 10ppm.
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| CN 201010233688 CN101898067A (en) | 2010-07-19 | 2010-07-19 | Gas purifier and regeneration method of molecular sieve thereof |
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| CN 201010233688 CN101898067A (en) | 2010-07-19 | 2010-07-19 | Gas purifier and regeneration method of molecular sieve thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592939A (en) * | 2012-02-28 | 2012-07-18 | 公安部第三研究所 | Molecular sieve regeneration device of ion mobility spectrometry equipment and regeneration method |
| CN103083997A (en) * | 2013-03-01 | 2013-05-08 | 成都广亚科技有限公司 | Solvent purifying device capable of regenerating in situ and treatment method and regeneration method thereof |
| CN103301741A (en) * | 2013-05-13 | 2013-09-18 | 中国科学院武汉物理与数学研究所 | Method and device for highly purifying gas |
| CN105779846A (en) * | 2014-12-26 | 2016-07-20 | 北京有色金属研究总院 | High-activity titanium-based alloy purification material and purification reactor thereof |
| CN112607710A (en) * | 2020-12-30 | 2021-04-06 | 青岛精安医疗科技有限责任公司 | Oxygen generation system and control method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102592939A (en) * | 2012-02-28 | 2012-07-18 | 公安部第三研究所 | Molecular sieve regeneration device of ion mobility spectrometry equipment and regeneration method |
| CN102592939B (en) * | 2012-02-28 | 2015-03-11 | 公安部第三研究所 | Molecular sieve regeneration device of ion mobility spectrometry equipment and regeneration method |
| CN103083997A (en) * | 2013-03-01 | 2013-05-08 | 成都广亚科技有限公司 | Solvent purifying device capable of regenerating in situ and treatment method and regeneration method thereof |
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| CN103301741B (en) * | 2013-05-13 | 2015-04-01 | 中国科学院武汉物理与数学研究所 | Method and device for highly purifying gas |
| CN105779846A (en) * | 2014-12-26 | 2016-07-20 | 北京有色金属研究总院 | High-activity titanium-based alloy purification material and purification reactor thereof |
| CN112607710A (en) * | 2020-12-30 | 2021-04-06 | 青岛精安医疗科技有限责任公司 | Oxygen generation system and control method thereof |
| CN112607710B (en) * | 2020-12-30 | 2022-10-28 | 青岛精安医疗科技有限责任公司 | Oxygen generation system and control method thereof |
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