CN111217340A - On-spot preparation facilities of high-purity carrier gas - Google Patents
On-spot preparation facilities of high-purity carrier gas Download PDFInfo
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- CN111217340A CN111217340A CN202010039934.1A CN202010039934A CN111217340A CN 111217340 A CN111217340 A CN 111217340A CN 202010039934 A CN202010039934 A CN 202010039934A CN 111217340 A CN111217340 A CN 111217340A
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- carrier gas
- gas
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- generator
- air compressor
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- 239000012159 carrier gas Substances 0.000 title claims abstract description 99
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 82
- 238000001914 filtration Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 239000002808 molecular sieve Substances 0.000 claims description 13
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 34
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 16
- 238000001179 sorption measurement Methods 0.000 abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 8
- 239000001301 oxygen Substances 0.000 abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012510 hollow fiber Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920006254 polymer film Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0433—Physical processing only
- C01B21/045—Physical processing only by adsorption in solids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0045—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0062—Water
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The application discloses a high-purity carrier gas on-site preparation device, which is used for an online monitoring system of dissolved gas in transformer oil and comprises an air generator switch, a drying regenerator, a gas filtering mechanism, an air compressor, a carrier gas generator, a carrier gas tank and a gas conveying pipe; the gas filtering mechanism, the air compressor, the carrier gas generator and the carrier gas tank are communicated through a gas conveying pipe; the drying regenerator is communicated with the carrier gas generator; the air generator switch is connected with the air compressor; the gas filtering mechanism is provided with a gas inlet. The air compressor runs, on-site air enters from the air inlet, and finally enters the carrier gas generator after drying and compression, and the carrier gas generator adopts the pressure swing adsorption principle to realize the adsorption of oxygen to prepare nitrogen and finally enters the carrier gas tank. The required carrier gas of transformer chromatogram on-line monitoring system is made to the on-the-spot air of this application utilization transformer substation, solves the problem that transformer chromatogram on-the-line system need regularly change the carrier gas bottle and bring inconvenience, realizes continuously monitoring, reduces the maintenance cost.
Description
Technical Field
The application relates to the technical field of monitoring of dissolved gas in transformer oil, in particular to a high-purity carrier gas on-site preparation device.
Background
The transformer is one of the most critical devices in the power system, and it is related to voltage conversion and power distribution and transmission, so whether the transformer works well plays a crucial role.
Oil-immersed transformers, as a common electrical device, perform insulation and heat dissipation functions through oil, but the insulating oil generates characteristic gas which can be dissolved in the transformer under the conditions of heat release and discharge, so that machine failure and damage are caused. Therefore, the dissolved gas in the transformer oil needs to be detected in time, and the fault of the transformer is determined by analyzing the content, component concentration and gas change of the dissolved gas in the oil.
However, in the detection process, the carrier gas is required to be used for carrying the sample gas to enter the detection system, so that the reserve volume of the carrier gas tank is the key for detecting whether the detection system continuously detects, and the current transformer online detection system cannot continuously detect because the carrier gas cylinder needs to be replaced regularly.
Disclosure of Invention
The application aims to provide a high-purity carrier gas on-site preparation device to solve the problem that a transformer on-line detection system needs to replace a carrier gas cylinder regularly.
According to the embodiment of the application, the on-site preparation device for the high-purity carrier gas is provided and is used for an on-line monitoring system for the dissolved gas in the transformer oil, and the on-site preparation device comprises an air generator switch, a drying regenerator, a gas filtering mechanism, an air compressor, a carrier gas generator, a carrier gas tank and a gas conveying pipe;
the gas filtering mechanism, the air compressor, the carrier gas generator and the carrier gas tank are sequentially communicated through the gas conveying pipe;
the dry regenerator is in communication with the carrier gas generator;
the air generator switch is connected with the air compressor;
the gas filtering mechanism is provided with a gas inlet;
and a pressure reducing valve is arranged at the tank opening of the gas-carrying tank.
Furthermore, a first electromagnetic valve is arranged on a gas conveying pipe connected with the air compressor and the carrier gas generator.
Further, the air-conditioning system also comprises a second electromagnetic valve, wherein the second electromagnetic valve is connected to an air conveying pipe connected with the air compressor and the carrier gas generator.
Further, the carrier gas generator includes an upper filter layer and a lower filter layer, the upper filter layer being in communication with the lower filter layer.
Furthermore, a zeolite molecular sieve is arranged in the upper filtering layer, a carbon molecular sieve is arranged in the lower filtering layer, and an activated alumina layer is arranged between the upper filtering layer and the lower filtering layer.
Further, the air compressor comprises an oil-free air compressor.
Further, the gas filtering mechanism comprises a gas polymer film drying mechanism.
According to the technical scheme, the embodiment of the application provides the on-site preparation device for the high-purity carrier gas, which is used for the on-line monitoring system for the dissolved gas in the transformer oil, and comprises an air generator switch, a drying regenerator, a gas filtering mechanism, an air compressor, a carrier gas generator, a carrier gas tank and a gas conveying pipe; the gas filtering mechanism, the air compressor, the carrier gas generator and the carrier gas tank are sequentially communicated through the gas conveying pipe; the dry regenerator is in communication with the carrier gas generator; the air generator switch is connected with the air compressor; the gas filtering mechanism is provided with a gas inlet; and a pressure reducing valve is arranged at the tank opening of the gas-carrying tank. The air compressor runs, on-site air enters from the air inlet, and finally enters the carrier gas generator after drying and compression, and the carrier gas generator adopts the pressure swing adsorption principle to realize the adsorption of oxygen to prepare nitrogen and finally enters the carrier gas tank. The required carrier gas of transformer chromatogram on-line monitoring system is made to the on-the-spot air of this application utilization transformer substation, solves the problem that transformer chromatogram on-the-line system need regularly change the carrier gas bottle and bring inconvenience, realizes continuously monitoring, reduces the maintenance cost.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of an on-site preparation apparatus for high purity carrier gas according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another apparatus for on-site preparation of a high purity carrier gas according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a carrier gas generator according to an embodiment of the present application.
Illustration of the drawings:
the method comprises the following steps of 1-an air generator switch, 2-a dry regenerator, 3-a gas filtering mechanism, 31-an air inlet, 4-an air compressor, 5-a carrier gas generator, 51-an upper filtering layer, 52-a lower filtering layer, 53-an active alumina layer, 61-a first electromagnetic valve, 62-a second electromagnetic valve, 7-a pressure reducing valve, 8-a transformer online chromatographic system constant temperature module, 9-a carrier gas tank and 10-a gas conveying pipe.
Detailed Description
Referring to fig. 1, the embodiment of the present application provides an on-site preparation apparatus for high purity carrier gas, which is used for an online monitoring system for dissolved gas in transformer oil, and is particularly applied to an online monitoring system for dissolved gas in transformer oil, in which a carrier gas cylinder is difficult to replace in a dangerous situation, and comprises an air generator switch 1, a dry regenerator 2, a gas filtering mechanism 3, an air compressor 4, a carrier gas generator 5, a carrier gas cylinder 9 and a gas pipe 10;
the gas filtering mechanism 3, the air compressor 4, the carrier gas generator 5 and the carrier gas tank 9 are communicated in sequence through the gas conveying pipe 10;
the dry regenerator 2 is in communication with the carrier gas generator 5;
the drying regenerator 2 is used for drying the carrier gas, namely nitrogen, required by the online monitoring system for the dissolved gas in the prepared transformer oil again. The carrier gas generator 5 makes the compressed air entering the bottom flow in the carrier gas generator according to the pressure swing adsorption principle, and the gas flowing to the top is the nitrogen.
The air generator switch 1 is connected with the air compressor 4;
the air generator switch 1 mainly functions to control the air compressor 4 to operate to extract the field air, and the field air enters from the air inlet 31, is filtered and then enters the lower end of the carrier gas generator 5, so that the compressed air flows upwards from the bottom.
Alternatively, the air generator switch 1 is disposed at the upper end of the dry regenerator 2, which saves space and reduces the occupied area.
The gas filtering mechanism 3 is provided with a gas inlet 31;
it should be noted that, the on-line chromatography system constant temperature module 8 of the transformer is arranged at the air inlet 31, so as to ensure that the air source is relatively dry and the particle impurities are few.
And a pressure reducing valve 7 is arranged at the tank opening of the gas carrying tank 9.
The pressure relief valve 7 ensures that the pressure of the gas stored in the tank remains balanced. The gas delivery pipe in the carrier gas tank 9 is connected with an online monitoring system for dissolved gas in transformer oil, so that nitrogen can be prepared on site in any occasion, whether the continuous detection equipment breaks down or not is guaranteed, and the running detection capability of the transformer is improved.
Alternatively, referring to fig. 2, the gas filtering mechanism 3, the air compressor 4, and the carrier gas generator 5 are sequentially communicated through the gas pipe 10; the dry regenerator 2 is in communication with the carrier gas generator 5; the dry regenerator 2 is connected to the carrier gas tank 9.
When the device is used, the switch 1 of the air generator is turned on, the air compressor 4 runs, the field air enters from the air filtering mechanism 3, is dried in the air compressor 4, moisture in the air is removed, the load of the carrier gas generator 5 is lightened, the compressed air enters the bottom of the carrier gas generator 5 through the air conveying pipe 10, residual moisture and other unnecessary gases in the air are adsorbed, the nitrogen flows out from the bottom of the carrier gas generator 5, the nitrogen can be deeply dried and purified through the drying regenerator 2, and the nitrogen enters the carrier gas tank 9 through the air conveying pipe 10.
The air compressor runs, on-site air enters from the air inlet, and finally enters the carrier gas generator after drying and compression, and the carrier gas generator adopts the pressure swing adsorption principle to realize the adsorption of oxygen to prepare nitrogen and finally enters the carrier gas tank. The required carrier gas of transformer chromatogram on-line monitoring system is made to the on-the-spot air of this application utilization transformer substation, solves the problem that transformer chromatogram on-the-line system need regularly change the carrier gas bottle and bring inconvenience, realizes continuously monitoring, reduces the maintenance cost.
Further, a first electromagnetic valve 61 is arranged on the gas pipe 10 connecting the air compressor 4 and the carrier gas generator 5.
The first electromagnetic valve 61 is used for controlling the on-off of the gas pipe 10 from the air compressor 4 to the carrier gas generator 5.
Further, the air-conveying device also comprises a second electromagnetic valve 62, wherein the second electromagnetic valve 62 is connected to the air conveying pipe 10 connected with the air compressor 4 and the carrier gas generator 5.
The second solenoid valve 62 is normally closed for pressure stabilization and pressure equalization.
Further, referring to fig. 3, the carrier gas generator 5 includes an upper filter layer 51 and a lower filter layer 52, and the upper filter layer 51 communicates with the lower filter layer 52.
The carrier gas generator 5 comprises an upper filter layer 51 and a lower filter layer 52, the upper filter layer 51 and the lower filter layer 52 are positioned at the upper end and the lower end of the carrier gas generator 5, and the carrier gas generator 5 further comprises a plurality of intercommunicating pipelines and switchable valves, so that the functions of rapidly switching nitrogen making, air inlet and air outlet are achieved.
The upper filter layer 51 and the lower filter layer 52 are alternately brought into a pressure-adsorption state or a pressure-desorption state by the switching valve, and nitrogen gas is formed. The carrier gas generator 5 utilizes the pressure swing adsorption principle, and mainly aims at the problems that the diffusion rate of oxygen and nitrogen in the air is different, the diffusion rate of gas oxygen molecules with smaller diameters is higher, and more gas oxygen molecules enter the micropores of the molecular sieve. The gas nitrogen molecules with larger diameter have slower diffusion rate and less micropores entering the molecular sieve, so that enriched components of nitrogen can be obtained in gas phase.
Further, a zeolite molecular sieve is arranged in the upper filter layer 51, a carbon molecular sieve is arranged in the lower filter layer 52, and an activated alumina layer 53 is arranged between the upper filter layer 51 and the lower filter layer 52.
The surface holes of the carbon molecular sieve are uniform circular holes and are arranged in the lower filtering layer 52, the middle part of the carbon molecular sieve is also provided with an active alumina layer, and the zeolite molecular sieve is arranged in the upper filtering layer 51. High purity nitrogen can be better produced by this combination of filtration.
The compressed air enters the lower filtering layer 52 of the carrier gas generator 5 through the air conveying pipe 10 through the first electromagnetic valve 61, when the compressed air passes through the carbon molecular sieve, residual moisture and other unnecessary gases in the air are adsorbed and flow to the activated alumina layer of the carrier gas generator 5, the activated alumina is adsorbed again, and nitrogen flows out of the upper filtering layer 51 and enters the carrier gas tank 9 after passing through the zeolite molecular sieve.
Further, the air compressor 4 includes an oil-free air compressor. The core of the oil-free air compressor is a superior two-stage compression main machine. The rotor is finely processed by twenty working procedures, so that the linear form of the rotor reaches the accuracy and the durability which are incomparable. The high-quality bearing and the precision gear are arranged in the rotor, so that the coaxiality of the rotor is guaranteed, the rotor is accurately matched, and long-term, efficient and reliable operation is kept.
Further, the gas filtering mechanism 3 includes a gas polymer membrane drying mechanism. The working principle of the gas polymer film drying mechanism is as follows: the high molecular hollow membrane air dehumidifier is a bundle formed by gathering tens of thousands of high molecular material hollow fiber yarns, and two ends of each bundle of yarns are bonded and fixed in a compact pressure-resistant cylinder by epoxy polymers. When compressed air without liquid water or oil flows along the inner cavity of the hollow fiber tube, the partial pressure of various gases is under the action of the driving force-partial pressure difference formed by the inner cavity (raw material side) and the outer cavity (permeation side) of the hollow fiber tube, the gas (such as water vapor) with large dissolution coefficient and diffusion coefficient preferentially permeates through the tube wall, and other gases (such as nitrogen, oxygen and the like) are relatively blocked, so that the separation purpose is achieved. The gas polymer film drying mechanism has the service life of 10 years, does not need a power supply, is safe to use, has a compact structure, saves space, and directly utilizes the pressure of compressed air as a driving force for separating water vapor. The absolute dehydration rate is up to more than 99 percent.
According to the technical scheme, the embodiment of the application provides the on-site preparation device for the high-purity carrier gas, which is used for the on-line monitoring system of the dissolved gas in the transformer oil, and comprises an air generator switch 1, a drying regenerator 2, a gas filtering mechanism 3, an air compressor 4, a carrier gas generator 5, a carrier gas tank 9 and a gas conveying pipe 10; the gas filtering mechanism 3, the air compressor 4, the carrier gas generator 5 and the carrier gas tank 9 are communicated in sequence through the gas conveying pipe 10; the dry regenerator 2 is in communication with the carrier gas generator 5; the air generator switch 1 is connected with the air compressor 4; the gas filtering mechanism 3 is provided with a gas inlet 31; and a pressure reducing valve 7 is arranged at the tank opening of the gas carrying tank 9. The air compressor 4 of this application operates, and on-the-spot air gets into by air inlet 31, gets into carrier gas generator 5 through drying, compression at last, and carrier gas generator 5 adopts the pressure swing adsorption principle, realizes adsorbing oxygen and prepares nitrogen gas, gets into carrier gas jar 9 at last. The required carrier gas of transformer chromatogram on-line monitoring system is made to the on-the-spot air of this application utilization transformer substation, solves the problem that transformer chromatogram on-the-line system need regularly change the carrier gas bottle and bring inconvenience, realizes continuously monitoring, reduces the maintenance cost.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (7)
1. A high-purity carrier gas on-site preparation device is used for an online monitoring system of dissolved gas in transformer oil and is characterized by comprising an air generator switch (1), a drying regenerator (2), a gas filtering mechanism (3), an air compressor (4), a carrier gas generator (5), a carrier gas tank (9) and a gas conveying pipe (10);
the gas filtering mechanism (3), the air compressor (4), the carrier gas generator (5) and the carrier gas tank (9) are sequentially communicated through the gas conveying pipe (10);
the dry regenerator (2) is communicated with the carrier gas generator (5);
the air generator switch (1) is connected with the air compressor (4);
the gas filtering mechanism (3) is provided with a gas inlet (31);
and a pressure reducing valve (7) is arranged at the tank opening of the gas carrying tank (9).
2. The device as claimed in claim 1, wherein a first solenoid valve (61) is arranged on the gas delivery pipe (10) connecting the air compressor (4) and the carrier gas generator (5).
3. The device according to claim 1, further comprising a second solenoid valve (62), wherein the second solenoid valve (62) is connected to the air delivery pipe (10) to which the air compressor (4) and the carrier gas generator (5) are connected.
4. The device according to claim 1, characterized in that the carrier gas generator (5) comprises an upper filter layer (51) and a lower filter layer (52), the upper filter layer (51) communicating with the lower filter layer (52).
5. The device according to claim 4, characterized in that zeolite molecular sieves are arranged in the upper filter layer (51), carbon molecular sieves are arranged in the lower filter layer (52), and an activated alumina layer (53) is arranged between the upper filter layer (51) and the lower filter layer (52).
6. The arrangement according to claim 1, characterized in that the air compressor (4) comprises an oil-free air compressor.
7. Device according to claim 1, characterized in that the gas filtering means (3) comprise gas polymeric membrane drying means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010039934.1A CN111217340A (en) | 2020-01-15 | 2020-01-15 | On-spot preparation facilities of high-purity carrier gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010039934.1A CN111217340A (en) | 2020-01-15 | 2020-01-15 | On-spot preparation facilities of high-purity carrier gas |
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| Publication Number | Publication Date |
|---|---|
| CN111217340A true CN111217340A (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010039934.1A Pending CN111217340A (en) | 2020-01-15 | 2020-01-15 | On-spot preparation facilities of high-purity carrier gas |
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| CN (1) | CN111217340A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758146A (en) * | 2021-09-26 | 2021-12-07 | 国网新疆电力有限公司检修公司 | Self-production carrier gas device of gas-carrying cylinder for on-line monitoring of oil chromatography |
| CN116393088A (en) * | 2023-03-24 | 2023-07-07 | 国网湖南省电力有限公司 | Alkaline earth metal modified molecular sieve compound, preparation method thereof and carrier gas generating device of online detection equipment |
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| JPS6434123A (en) * | 1987-04-14 | 1989-02-03 | Sanyo Denshi Kogyo Kk | Automatic nitrogen filling device for hollow high frequency power transmission line |
| GB9800017D0 (en) * | 1997-02-06 | 1998-03-04 | Boustany Marketing Inc | Production of high purity nitrogen or oxygen from air |
| CN1221642A (en) * | 1998-10-22 | 1999-07-07 | 中国人民解放军军事医学科学院卫生装备研究所 | Method for pressure variable absorbing preparation of high density oxygen from air |
| CN1321536A (en) * | 2000-07-07 | 2001-11-14 | 上海化工研究院 | Equipment for producing nitrogen gas by using pressure swing adsorption process |
| US20030097931A1 (en) * | 2001-09-05 | 2003-05-29 | Masato Kawai | Method and apparatus for producing nitrogen |
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-
2020
- 2020-01-15 CN CN202010039934.1A patent/CN111217340A/en active Pending
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|---|---|---|---|---|
| JPS6434123A (en) * | 1987-04-14 | 1989-02-03 | Sanyo Denshi Kogyo Kk | Automatic nitrogen filling device for hollow high frequency power transmission line |
| GB9800017D0 (en) * | 1997-02-06 | 1998-03-04 | Boustany Marketing Inc | Production of high purity nitrogen or oxygen from air |
| CN1221642A (en) * | 1998-10-22 | 1999-07-07 | 中国人民解放军军事医学科学院卫生装备研究所 | Method for pressure variable absorbing preparation of high density oxygen from air |
| CN1321536A (en) * | 2000-07-07 | 2001-11-14 | 上海化工研究院 | Equipment for producing nitrogen gas by using pressure swing adsorption process |
| US20030097931A1 (en) * | 2001-09-05 | 2003-05-29 | Masato Kawai | Method and apparatus for producing nitrogen |
| CN202912696U (en) * | 2012-10-16 | 2013-05-01 | 安徽省凯杰机械制造有限公司 | Pressure swing adsorption type air separation nitrogen making equipment for keeping grain fresh |
| CN206970210U (en) * | 2017-04-05 | 2018-02-06 | 北京郡北科磁性科技有限公司 | A kind of cabinet type high-purity nitrogen making machine of bunk beds pressure-variable adsorption |
Non-Patent Citations (1)
| Title |
|---|
| 刘剑等: "变压吸附制氮技术的发展和应用", 《化工时刊》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758146A (en) * | 2021-09-26 | 2021-12-07 | 国网新疆电力有限公司检修公司 | Self-production carrier gas device of gas-carrying cylinder for on-line monitoring of oil chromatography |
| CN116393088A (en) * | 2023-03-24 | 2023-07-07 | 国网湖南省电力有限公司 | Alkaline earth metal modified molecular sieve compound, preparation method thereof and carrier gas generating device of online detection equipment |
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Application publication date: 20200602 |
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