CN209181392U - A kind of full nitrogen space division waste gas recovering device processed - Google Patents
A kind of full nitrogen space division waste gas recovering device processed Download PDFInfo
- Publication number
- CN209181392U CN209181392U CN201821687234.8U CN201821687234U CN209181392U CN 209181392 U CN209181392 U CN 209181392U CN 201821687234 U CN201821687234 U CN 201821687234U CN 209181392 U CN209181392 U CN 209181392U
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- CN
- China
- Prior art keywords
- air
- oxygen
- cooling tower
- water
- enriched air
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 45
- 239000002912 waste gas Substances 0.000 title claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000001301 oxygen Substances 0.000 claims abstract description 84
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 84
- 238000001816 cooling Methods 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000012856 packing Methods 0.000 claims description 16
- 239000002808 molecular sieve Substances 0.000 claims description 5
- 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 5
- 230000003584 silencer Effects 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 5
- 230000008929 regeneration Effects 0.000 abstract description 5
- 238000011069 regeneration method Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model belongs to the technical field of air separation plant, in particular to a kind of full nitrogen space division waste gas recovering device processed, the full nitrogen space division processed includes air precooling system, type air purifier and nitrogen gas generating system, the nitrogen gas generating system includes expanding machine, main heat exchanger, liquid air subcooler and nitrogen tower, the top of the nitrogen tower is provided with condenser/evaporator, draw oxygen-enriched air supervisor in the top of the condenser/evaporator, oxygen-enriched air supervisor goes out tower after sequentially passing through liquid air subcooler and main heat exchanger, oxygen-enriched air first is provided in the expanding machine to be in charge of, oxygen-enriched air first is in charge of to be connected by circulation with oxygen-enriched air supervisor, oxygen-enriched air is responsible for out after tower to be in charge of by oxygen-enriched air second and be connect with type air purifier, it is in charge of by oxygen-enriched air third and is connect with the water-cooling tower of air precooling system.Waste gas recovering device provided by the utility model, recycling oxygen-enriched air, which is used as the regeneration of type air purifier and the pre-cooling of raw air, realizes the full recycling of oxygen-enriched air instead of Precooling unit.
Description
Technical field
The utility model belongs to the technical field of air separation plant, in particular to a kind of full nitrogen space division waste gas recovering device processed.
Background technique
Air separation plant is air to be become liquid by the method for compression depth of round freezing, then pass through using air as raw material
It crosses rectifying and gradually separates the equipment for producing the inert gases such as oxygen, nitrogen and argon gas from liquid air.Full nitrogen space division processed
It is a kind of for specially producing the space division of nitrogen.
Full nitrogen space division processed remaining oxygen-enriched air after isolating nitrogen, this part oxygen-enriched air gas temperature is low and is drying
Gas, direct emission cause very big waste.
Utility model content
The purpose of the utility model is to provide a kind of full nitrogen space division waste gas recovering device processed, recycling oxygen-enriched air is used as air
The regeneration of purifier and the pre-cooling of raw air realize the full recycling of oxygen-enriched air instead of Precooling unit.
Purpose of the utility model is realized as follows: a kind of full nitrogen space division waste gas recovering device processed, the full nitrogen processed is empty
Dividing includes air precooling system, type air purifier and nitrogen gas generating system, and the nitrogen gas generating system includes expanding machine, main heat exchanger, liquid air
Subcooler and nitrogen tower, the top of the nitrogen tower are provided with condenser/evaporator, and oxygen-enriched air is drawn on the top of the condenser/evaporator
Supervisor, oxygen-enriched air supervisor go out tower after sequentially passing through liquid air subcooler and main heat exchanger, are provided with oxygen-enriched sky in the expanding machine
Gas first is in charge of, and oxygen-enriched air first is in charge of to be connected by circulation with oxygen-enriched air supervisor, and oxygen-enriched air is responsible for out after tower by oxygen-enriched
Air second is in charge of to be connect with type air purifier, is in charge of by oxygen-enriched air third and is connect with the water-cooling tower of air precooling system.
Above-mentioned air precooling system includes air cooling tower and water-cooling tower, and air cooling tower water inlet is provided with above the air cooling tower
Pipe, bottom end are provided with air cooling tower outlet pipe, and centre is air-cooled tower packing, are provided with air inlet pipe, air cooling tower below air-cooled tower packing
Top is provided with escape pipe, and escape pipe is connected with type air purifier；Water-cooling tower water inlet pipe, bottom are provided with above the water-cooling tower
Portion is provided with water-cooling tower outlet pipe, and centre is water cooling tower packing, and oxygen-enriched air third, which is in charge of, to be connected to below water cooling tower packing, water
Cold tower top end emptying, air cooling tower outlet pipe are connect with water-cooling tower water inlet pipe, and water-cooling tower outlet pipe is connect with air cooling tower water inlet pipe, cold
But water is circulated in air cooling tower and water-cooling tower under the driving of circulating pump.
The air inlet pipe of above-mentioned air cooling tower is connected with heat exchanger, and oxygen-enriched air the 4th is provided in heat exchanger and is in charge of, the richness
One end connection oxygen-enriched air supervisor that oxygen air the 4th is in charge of, one end connects type air purifier.
Cooler is provided between above-mentioned heat exchanger and air inlet pipe.
Air successively passes through air filter, air compressor and air cushion tank, then with heat exchanger, cooler and air-cooled
The air inlet pipe of tower is connected.
Above-mentioned water-cooling tower water inlet pipe is connected with water supply pipe.
Above-mentioned oxygen-enriched air second, which is in charge of, is provided with electric heater, oxygen-enriched air second be in charge of in type air purifier
Molecular sieve is connected.
The above-mentioned raw air by type air purifier purifying below nitrogen tower packing by being transported among nitrogen tower, by nitrogen
The separation of tower, by output products nitrogen between nitrogen tower packing and condenser/evaporator.
Above-mentioned oxygen-enriched air first is in charge of, oxygen-enriched air second is in charge of, oxygen-enriched air third is in charge of and is respectively connected with evacuated tube.
The end of above-mentioned evacuated tube is provided with air releasing silencer.
Compared to the prior art the utility model, has the following beneficial effects:
1, the utility model draws the oxygen-enriched air after separation of nitrogen in nitrogen tower, respectively enters expanding machine and main heat exchange
Device summarizes rear re-heat and goes out tower, and the oxygen-enriched air after tower introduces type air purifier and uses as regeneration gas out, and it is pure to be used as molecular sieve
The regeneration for changing device can maintain type air purifier to regenerate when space division operates in 50% load.
2, when space division load be higher than 50% when, have more than needed bulk gas, the utility model by this portion gas introduce air it is pre-
In the water-cooling tower of cooling system, the normal-temperature water in water-cooling tower is cooled down, due to oxygen-enriched air be dry gas and temperature it is low (about
It is 10 DEG C or so), normal-temperature water temperature can be made constantly to reduce, air cooling tower is introduced after becoming chilled water, raw air is dropped
Wen Houzai is passed through in type air purifier.
3, the utility model realizes the full recycling of oxygen-enriched air, instead of Precooling unit, saves a large amount of electric energy, has aobvious
The economic benefit of work.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model air precooling system.
Appended drawing reference: 1, air precooling system；2, type air purifier；3, nitrogen gas generating system；4, expanding machine；5, main heat exchanger；
6, liquid air subcooler；7, nitrogen tower；8, condenser/evaporator；9, oxygen-enriched air is responsible for；10, oxygen-enriched air first is in charge of；11, oxygen-enriched sky
Gas second is in charge of；12, oxygen-enriched air third is in charge of；13, water-cooling tower；14, air cooling tower；15, air cooling tower water inlet pipe；16, air cooling tower
Outlet pipe；17, air-cooled tower packing；18, air inlet pipe；19, escape pipe；20, water-cooling tower water inlet pipe；21, water-cooling tower outlet pipe；22,
Water cooling tower packing；23, heat exchanger；24, oxygen-enriched air the 4th is in charge of；25, cooler；26, water supply pipe；27, electric heater；28,
Molecular sieve；29, evacuated tube；30, air releasing silencer.
Specific embodiment
The utility model is further described with specific embodiment with reference to the accompanying drawing, referring to Fig. 1-2:
A kind of full nitrogen space division waste gas recovering device processed, the full nitrogen space division processed includes air precooling system 1, type air purifier
2 and nitrogen gas generating system 3, the nitrogen gas generating system 3 includes expanding machine 4, main heat exchanger 5, liquid air subcooler 6 and nitrogen tower 7, the nitrogen tower 7
Top be provided with condenser/evaporator 8, oxygen-enriched air supervisor 9, oxygen-enriched air supervisor 9 are drawn in the top of the condenser/evaporator 8
Go out tower after sequentially passing through liquid air subcooler 6 and main heat exchanger 5, oxygen-enriched air first is provided in the expanding machine 4 and is in charge of 10, richness
Oxygen air first is in charge of 10 and is connected by circulation with oxygen-enriched air supervisor 9, and oxygen-enriched air supervisor 9 is divided after going out tower by oxygen-enriched air second
Pipe 11 is connect with type air purifier 2, is in charge of 12 by oxygen-enriched air third and is connect with the water-cooling tower 13 of air precooling system 1.
Above-mentioned air precooling system 1 includes air cooling tower 14 and water-cooling tower 13, and the top of the air cooling tower 14 is provided with air-cooled
Tower water inlet pipe 15, bottom end are provided with air cooling tower outlet pipe 16, and centre is air-cooled tower packing 17, are provided with below air-cooled tower packing 17
Air inlet pipe 18,14 top of air cooling tower are provided with escape pipe 19, and escape pipe 19 is connected with type air purifier 2；The water-cooling tower 13
Top is provided with water-cooling tower water inlet pipe 20, and bottom is provided with water-cooling tower outlet pipe 21, and centre is water cooling tower packing 22, oxygen-enriched air
Third is in charge of 12 lower sections for being connected to water cooling tower packing 22, the emptying of 13 top of water-cooling tower, air cooling tower outlet pipe 16 and water-cooling tower into
Water pipe 20 connects, and water-cooling tower outlet pipe 21 is connect with air cooling tower water inlet pipe 15, and cooling water is circulated in sky under the driving of circulating pump
Cold tower 14 and water-cooling tower 13.
The removal process of the oxygen-enriched air of the utility model is as follows: oxygen-enriched air is drawn by the top of condenser/evaporator 8, warp
Cross the heat exchange of liquid air subcooler 6, rear portion expanding machine 4 entered by main heat exchanger 5 recycle, the oxygen-enriched air in expanding machine 4
Nitrogen gas generating system 3, the richness after discharge is discharged after summarizing with the oxygen-enriched air in oxygen-enriched air general pipeline 9 after 5 re-heat of main heat exchanger
Oxygen air is again split into two parts, and a part enters in type air purifier 2 to be used as regeneration gas, and another part enters water cooling
Tower 13 cools down the normal-temperature water in water-cooling tower 13, and water after cooling enters air cooling tower 14 and cools down to raw air.
The air inlet pipe 18 of above-mentioned air cooling tower 14 is connected with heat exchanger 23, and oxygen-enriched air the 4th is provided in heat exchanger 23 and is in charge of
24, the oxygen-enriched air the 4th is in charge of 24 one end connection oxygen-enriched air supervisor 9, and one end connects type air purifier 2, heat exchanger 23
In raw air and oxygen-enriched air the 4th be in charge of the oxygen-enriched air in 24 heat exchange cool down, it is pure to be drained into air for oxygen-enriched air later
Change and is used in device 2.
Cooler 25 is provided between above-mentioned heat exchanger 23 and air inlet pipe 18, cooler 25 carries out raw air pre- again
It is cold.
Above-mentioned water-cooling tower water inlet pipe 20 is connected with water supply pipe 26.
Above-mentioned oxygen-enriched air second, which is in charge of on 11, is provided with electric heater 27, and oxygen-enriched air second is in charge of 11 and air purge
Molecular sieve 28 in device 2 is connected.
Above-mentioned raw materials air successively passes through air filter, air compressor and air cushion tank, then with heat exchanger 23, cold
But device 25 is connected with the air inlet pipe 18 of air cooling tower 14.
The above-mentioned raw air purified by type air purifier 2 is passed through by being transported among nitrogen tower 7 below 7 filler of nitrogen tower
The separation for crossing nitrogen tower 7, by output products nitrogen between 7 filler of nitrogen tower and condenser/evaporator 8.
Above-mentioned oxygen-enriched air first, which is in charge of 10, oxygen-enriched air second and is in charge of 11, oxygen-enriched air third and is in charge of 12, to be respectively connected with
Evacuated tube 29.
The end of above-mentioned evacuated tube 29 is provided with air releasing silencer 30.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model
Within the scope of.
Claims (8)
1. a kind of full nitrogen space division waste gas recovering device processed, the full nitrogen space division processed includes air precooling system (1), type air purifier
(2) and nitrogen gas generating system (3), the nitrogen gas generating system (3) include expanding machine (4), main heat exchanger (5), liquid air subcooler (6) and nitrogen tower
(7), the top of the nitrogen tower (7) is provided with condenser/evaporator (8), which is characterized in that draws on the top of the condenser/evaporator (8)
Oxygen-enriched air supervisor (9) out, oxygen-enriched air supervisor (9) sequentially pass through liquid air subcooler (6) and main heat exchanger (5) and go out tower, institute afterwards
It states and is provided with oxygen-enriched air first in expanding machine (4) and is in charge of (10), oxygen-enriched air first is in charge of (10) and oxygen-enriched air supervisor (9)
It is connected by circulation, oxygen-enriched air supervisor (9), which goes out, to be in charge of (11) by oxygen-enriched air second after tower and connect with type air purifier (2), logical
It crosses oxygen-enriched air third and is in charge of (12) and connect with the water-cooling tower (13) of air precooling system (1).
2. a kind of full nitrogen space division waste gas recovering device processed according to claim 1, which is characterized in that the air precooling system
System (1) includes air cooling tower (14) and water-cooling tower (13), is provided with air cooling tower water inlet pipe (15), bottom above the air cooling tower (14)
End is provided with air cooling tower outlet pipe (16), and centre is air-cooled tower packing (17), is provided with air inlet pipe below air-cooled tower packing (17)
(18), air cooling tower (14) top is provided with escape pipe (19), and escape pipe (19) is connected with type air purifier (2)；The water-cooling tower
(13) it is provided with above water-cooling tower water inlet pipe (20), bottom is provided with water-cooling tower outlet pipe (21), and centre is water cooling tower packing
(22), oxygen-enriched air third is in charge of (12) and is connected to below water cooling tower packing (22), air cooling tower outlet pipe (16) and water-cooling tower into
Water pipe (20) connection, water-cooling tower outlet pipe (21) are connect with air cooling tower water inlet pipe (15), and cooling water follows under the driving of circulating pump
Ring is in air cooling tower (14) and water-cooling tower (13).
3. a kind of full nitrogen space division waste gas recovering device processed according to claim 2, which is characterized in that the air cooling tower (14)
Air inlet pipe (18) be connected with heat exchanger (23), be provided with oxygen-enriched air the 4th in heat exchanger (23) and be in charge of (24), it is described oxygen-enriched
Air the 4th is in charge of one end connection oxygen-enriched air supervisor (9) of (24), and one end connects type air purifier (2).
4. a kind of full nitrogen space division waste gas recovering device processed according to claim 3, which is characterized in that the heat exchanger (23)
Cooler (25) are provided between air inlet pipe (18).
5. a kind of full nitrogen space division waste gas recovering device processed according to claim 2, which is characterized in that the water-cooling tower water inlet
Pipe (20) is connected with water supply pipe (26).
6. a kind of full nitrogen space division waste gas recovering device processed according to claim 1, which is characterized in that the oxygen-enriched air the
Two are in charge of on (11) and are provided with electric heater (27), and oxygen-enriched air second is in charge of the molecular sieve in (11) and type air purifier (2)
(28) it is connected.
7. a kind of full nitrogen space division waste gas recovering device processed according to claim 1, which is characterized in that the oxygen-enriched air the
One is in charge of (10), oxygen-enriched air second is in charge of (11), oxygen-enriched air third is in charge of (12) and is respectively connected with evacuated tube (29).
8. a kind of full nitrogen space division waste gas recovering device processed according to claim 7, which is characterized in that the evacuated tube (29)
End be provided with air releasing silencer (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821687234.8U CN209181392U (en) | 2018-10-17 | 2018-10-17 | A kind of full nitrogen space division waste gas recovering device processed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821687234.8U CN209181392U (en) | 2018-10-17 | 2018-10-17 | A kind of full nitrogen space division waste gas recovering device processed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209181392U true CN209181392U (en) | 2019-07-30 |
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ID=67361622
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821687234.8U Expired - Fee Related CN209181392U (en) | 2018-10-17 | 2018-10-17 | A kind of full nitrogen space division waste gas recovering device processed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209181392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297260A (en) * | 2018-10-17 | 2019-02-01 | 浙江海天气体有限公司 | A complete nitrogen production air separation waste gas recovery device |
-
2018
- 2018-10-17 CN CN201821687234.8U patent/CN209181392U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297260A (en) * | 2018-10-17 | 2019-02-01 | 浙江海天气体有限公司 | A complete nitrogen production air separation waste gas recovery device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20211017 |