CN202912696U - Pressure swing adsorption type air separation nitrogen making equipment for keeping grain fresh - Google Patents
Pressure swing adsorption type air separation nitrogen making equipment for keeping grain fresh Download PDFInfo
- Publication number
- CN202912696U CN202912696U CN 201220526636 CN201220526636U CN202912696U CN 202912696 U CN202912696 U CN 202912696U CN 201220526636 CN201220526636 CN 201220526636 CN 201220526636 U CN201220526636 U CN 201220526636U CN 202912696 U CN202912696 U CN 202912696U
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- Prior art keywords
- nitrogen
- air
- equipment
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- air dryer
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 76
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 33
- 238000000926 separation method Methods 0.000 title claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 16
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 239000002808 molecular sieve Substances 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model provides pressure swing adsorption type air separation nitrogen making equipment for keeping grain fresh, solves the problem that a conventional nitrogen making equipment is complex in structure, high in investment cost, and not suitable for small and medium-sized enterprises, and relates to the technical field of nitrogen making. The equipment mainly comprises an air compressor, an air dryer, an oil removal tank, an air separation nitrogen making device and a nitrogen storage tank, wherein the air compressor is connected with the air inlet end of the air dryer; the air outlet end of the air dryer is connected with the air inlet end of the oil removal tank; the air outlet end of the oil removal tank is connected with the air inlet end of the air separation nitrogen making device; the air outlet end of the air separation nitrogen making device is connected with the air inlet end of the nitrogen storage tank; a filter is connected in series between the air compressor and the air dryer as well as the air dryer and the oil removal tank; and the air outlet end of the nitrogen storage tank is respectively connected with a nitrogen analyzer and nitrogen consuming equipment. Compared with a conventional deep cooling air separation method, the pressure swing adsorption type air separation nitrogen making equipment is simpler in structure, small in occupied area, low in operation cost, lower in investment cost, and suitable for small and medium-sized enterprises; and a nitrogen making system is connected with the nitrogen analyzer, and can detect the purity of nitrogen.
Description
Technical field:
The utility model relates to nitrogen technical field processed, relates in particular to a kind of grain fresh keeping pressure change adsorption type separating nitrogen gas preparing equipment.
Background technology:
Nitrogen is widely used in the industries such as oil, chemical industry, food, electronics, metallurgy, medicine.The injection of producing the protection of nitrogen part, the pharmaceutical industries of semiconducter device such as the controlled atmosphere in the cleaning of protective gas, oil and the chemical pipeline equipment of metal sintering, laser boring and gas displacement, the foodstuffs industry and nitrogen-filled packaging, electron trade fills nitrogen and other need the department of nitrogen.
Nitrogen processed preparation utilizes the method for physics take air as raw material, wherein oxygen is separated with nitrogen and obtains.Cryogenic air separation unit nitrogen processed is a kind of traditional nitrogen side processed, and it is take air as raw material, and through overdraft, purification, the recycling heat exchange makes liquefaction of air become liquid air.Liquid air mainly is the mixture of liquid oxygen and liquid nitrogen, utilizes the boiling point of liquid oxygen and liquid nitrogen different (under 1 normal atmosphere, the former boiling point is-183 ℃, and the latter's is-196 ℃), by the rectifying of liquid air, makes them separate to obtain nitrogen.The cryogenic air separation unit equipment of making nitrogen is complicated, floor space is large, and capital cost is higher, and the equipment one-time investment is more, and running cost is higher, and aerogenesis is slow, and (12～24h), installation requirement is high, the cycle is longer, is not suitable for medium-sized and small enterprises and uses.
The utility model content:
The purpose of this utility model is to provide a kind of grain fresh keeping pressure change adsorption type separating nitrogen gas preparing equipment, to solve existing equipment of making nitrogen complex structure, problem that cost of investment is high.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of grain fresh keeping pressure change adsorption type separating nitrogen gas preparing equipment, it is characterized in that: this system mainly comprises air compressor, instrument air dryer, oil removing pot, Nitrogen plant using air separation process and nitrogen storage gas tank, described air compressor connects the inlet end of instrument air dryer, the outlet side of described instrument air dryer connects the inlet end of oil removing pot, the outlet side of described oil removing pot connects the inlet end of Nitrogen plant using air separation process, the outlet side of described Nitrogen plant using air separation process connects the inlet end of nitrogen storage gas tank, also is connected with strainer between described air compressor and the instrument air dryer and between instrument air dryer and the oil removing pot.
Described air compressor adopts screw air compressor.
Described instrument air dryer adopts refrigeration compressed air dryer.
Described Nitrogen plant using air separation process is the PAS swing adsorption nitrogen producing apparatus, comprises left adsorption tanks and right adsorption tanks.
The outlet side of described nitrogen storage gas tank connects respectively the nitrogen analyser and uses nitrogen equipment.
After air compresses through air compressor, in the dry and fly-ash separator dedusting through instrument air dryer, then enter left adsorption tanks, the tank pressure of left adsorption tanks raises, oxygen molecule in the pressurized air is adsorbed by carbonaceous molecular sieve, and the nitrogen that is not adsorbed passes adsorption bed, enters the nitrogen storage gas tank, this process is referred to as left suction, and the time length is 58 seconds.
Behind the left suction end of processing, left adsorption tanks are communicated with right adsorption tanks, make left and right sides adsorption tanks pressure reach balanced, and this process is referred to as all to press, and the time length is 2 seconds.
After all pressing end, pressurized air enters right adsorption tanks, and the oxygen molecule in the pressurized air is adsorbed by carbonaceous molecular sieve, and the nitrogen of enrichment enters the nitrogen storage gas tank, and this process is referred to as right suction, and the time length is 58 seconds.
In the time of right suction, the oxygen of carbonaceous molecular sieve absorption discharges back in the atmosphere in the left adsorption tanks, and this process is referred to as desorb; Otherwise during left suction, right adsorption tanks are also in desorb; Always circulation is gone down.
After pressure in the nitrogen storage gas tank reaches 0.6MPa, slowly open the blow-off valve of nitrogen storage gas tank, adjusting nitrogen flow is the customer requirements flow, show by the nitrogen analyser, after purity reaches the purity of customer requirements, close blow-off valve, open towards the valve of rear class with nitrogen equipment, product nitrogen gas can use.
The utility model is compared with existing cryogenic air separation unit nitrogen method processed, and structure is comparatively simple, and floor space is little, and running cost is low, and cost of investment is less also, is fit to medium-sized and small enterprises and uses; Nitrogen gas generating system is connected with the nitrogen analyser, purity that can testing product nitrogen.
Description of drawings:
Fig. 1 is system schematic of the present utility model.
1. air compressor wherein; 2. strainer; 3. instrument air dryer; 4. oil removing pot; 5. Nitrogen plant using air separation process; 6. nitrogen storage gas tank; 7. nitrogen analyser; 8. use nitrogen equipment; 51. left adsorption tanks; 52. right adsorption tanks.
Embodiment:
For technique means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with specifically illustrating and specific embodiment, further set forth the utility model, but be not to limit protection domain of the present utility model.
Please refer to Fig. 1, a kind of grain fresh keeping pressure change adsorption type separating nitrogen gas preparing equipment, this system mainly comprises air compressor 1, instrument air dryer 3, oil removing pot 4, Nitrogen plant using air separation process 5 and nitrogen storage gas tank 6, air compressor 1 connects the inlet end of instrument air dryer 3, the outlet side of instrument air dryer 3 connects the inlet end of oil removing pot 4, the outlet side of oil removing pot 4 connects the inlet end of Nitrogen plant using air separation process 5, the outlet side of Nitrogen plant using air separation process 5 connects the inlet end of nitrogen storage gas tank 6, also be connected with strainer 2 between air compressor 1 and the instrument air dryer 3 and between instrument air dryer 3 and the oil removing pot 4, air compressor 1 adopts screw air compressor, instrument air dryer 3 adopts refrigeration compressed air dryer, Nitrogen plant using air separation process 5 is the PAS swing adsorption nitrogen producing apparatus, comprise left adsorption tanks 51 and right adsorption tanks 52, the outlet side of nitrogen storage gas tank 6 connects respectively nitrogen analyser 7 and with nitrogen equipment 8.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.It only is embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the utility model, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. grain fresh keeping pressure change adsorption type separating nitrogen gas preparing equipment, it is characterized in that: this equipment mainly comprises air compressor, instrument air dryer, oil removing pot, Nitrogen plant using air separation process and nitrogen storage gas tank, described air compressor connects the inlet end of instrument air dryer, the outlet side of described instrument air dryer connects the inlet end of oil removing pot, the outlet side of described oil removing pot connects the inlet end of Nitrogen plant using air separation process, the outlet side of described Nitrogen plant using air separation process connects the inlet end of nitrogen storage gas tank, also is connected with strainer between described air compressor and the instrument air dryer and between instrument air dryer and the oil removing pot.
2. grain fresh keeping according to claim 1 pressure change adsorption type separating nitrogen gas preparing equipment is characterized in that: described air compressor employing screw air compressor.
3. grain fresh keeping according to claim 1 pressure change adsorption type separating nitrogen gas preparing equipment is characterized in that: described instrument air dryer employing refrigeration compressed air dryer.
4. grain fresh keeping according to claim 1 pressure change adsorption type separating nitrogen gas preparing equipment, it is characterized in that: described Nitrogen plant using air separation process is the PAS swing adsorption nitrogen producing apparatus, comprises left adsorption tanks and right adsorption tanks.
5. each described grain fresh keeping pressure change adsorption type separating nitrogen gas preparing equipment according to claim 1-4, it is characterized in that: the outlet side of described nitrogen storage gas tank connects respectively the nitrogen analyser and uses nitrogen equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526636 CN202912696U (en) | 2012-10-16 | 2012-10-16 | Pressure swing adsorption type air separation nitrogen making equipment for keeping grain fresh |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526636 CN202912696U (en) | 2012-10-16 | 2012-10-16 | Pressure swing adsorption type air separation nitrogen making equipment for keeping grain fresh |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202912696U true CN202912696U (en) | 2013-05-01 |
Family
ID=48161026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220526636 Expired - Fee Related CN202912696U (en) | 2012-10-16 | 2012-10-16 | Pressure swing adsorption type air separation nitrogen making equipment for keeping grain fresh |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202912696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111217340A (en) * | 2020-01-15 | 2020-06-02 | 云南电网有限责任公司电力科学研究院 | On-spot preparation facilities of high-purity carrier gas |
| CN112479164A (en) * | 2020-11-18 | 2021-03-12 | 浙江理工大学 | Nitrogen making device for solid waste treatment system |
-
2012
- 2012-10-16 CN CN 201220526636 patent/CN202912696U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111217340A (en) * | 2020-01-15 | 2020-06-02 | 云南电网有限责任公司电力科学研究院 | On-spot preparation facilities of high-purity carrier gas |
| CN112479164A (en) * | 2020-11-18 | 2021-03-12 | 浙江理工大学 | Nitrogen making device for solid waste treatment system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20151016 |
|
| EXPY | Termination of patent right or utility model |