CN107806742A - A kind of low-temperature liquefaction method produces CO2Method and device - Google Patents
A kind of low-temperature liquefaction method produces CO2Method and device Download PDFInfo
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- CN107806742A CN107806742A CN201710915172.5A CN201710915172A CN107806742A CN 107806742 A CN107806742 A CN 107806742A CN 201710915172 A CN201710915172 A CN 201710915172A CN 107806742 A CN107806742 A CN 107806742A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention discloses a kind of low-temperature liquefaction method to produce CO2Method and device, comprise the following steps：S1：Gas is passed through tower in first by air inlet, the first refrigerator pipes connected by the first refrigeration machine cool to gas, due to the ratio CO that tower internal temperature is set in first2Boiling point is high, and boiling point compares CO2Liquefaction and solidification occurs in low gas, and solidfied material is attached in the first refrigeration pipe outer wall, removed by scratch device；S2：The first magnetic valve is opened, gas is passed through in second inside tower, due to the ratio CO that tower internal temperature is set in second2Boiling point is high, CO2It can liquefy, by low on liquefaction piece；S3：Open second solenoid valve, the CO after liquefaction2It is collected into fluid reservoir.The low-temperature liquefaction method produces CO2Method, step is reasonable in design, liquefaction effect is good.
Description
Technical field
The present invention relates to biogas treatment technical field, specially a kind of low-temperature liquefaction method production CO2Method and device.
Background technology
Biogas is a kind of mixed combustible gas body, and its composition depends not only on fermentation raw material and species and its relative amount, and
And change with fermentation condition and the different of fermentation stage.Generally, the main component of biogas is methane and carbon dioxide.This
Outside, the gas such as also a small amount of hydrogen, carbon monoxide, nitrogen, hydrogen sulfide.Methane content accounts for 50% to 70%, and carbon dioxide accounts for
30% to 40% or so.Biogas is colourless gas, and slightly smell is because containing a small amount of hydrogen sulfide gas.
State when being captured according to carbon dioxide is different, and low temperature process carbon trapping technique contains two kinds of trapping forms：The
One kind is liquefaction separation, i.e. cryogenic condensation or rectifying, using the boiling point difference with other compositions in mixed gas, using low temperature skill
Art is by CO2Liquefy and separate；Second is separation of sublimating, it mainly using other in de-sublimation temperature and mixed gas into
Point difference, using cryogenic technique by CO2Solidify and separate.
The content of the invention
It is an object of the invention to provide a kind of low-temperature liquefaction method to produce CO2Method and device, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides following technical scheme：A kind of low-temperature liquefaction method produces CO2Method, bag
Include following steps：
S1、：Gas is passed through tower in first by air inlet, the first refrigerator pipes connected by the first refrigeration machine are to gas
Cooled, due to the ratio CO that tower internal temperature is set in first2Boiling point is high, and boiling point compares CO2Low gas occurs liquefaction and consolidated
Change, solidfied material is attached in the first refrigeration pipe outer wall, removed by scratch device；
S2、：The first magnetic valve is opened, gas is passed through in second inside tower, because tower internal temperature is set in second
Compare CO2Boiling point is high, CO2It can liquefy, by low on liquefaction piece；
S3、：Open second solenoid valve, the CO after liquefaction2It is collected into fluid reservoir.
A kind of low-temperature liquefaction method produces CO2Device, including outer tower, Nei Ta and fluid reservoir, the outer tower be internally provided with
Interior tower, vacuum chamber is provided between Wai Ta and interior tower, first partition and second partition be installed inside the interior tower, described first
Dividing plate and second partition are distributed and interior tower are divided into first into tower in tower and second up and down, and tower inner tip is set in described first
There are the first refrigerator pipes, the first refrigerator pipes top is provided with the first refrigeration machine, the first refrigeration machine side outside outer tower
Outer tower on offer air inlet, the air inlet connects with tower in first, and the first refrigerator pipes bottom is in first partition
Scratch device is installed with, the first magnetic valve is installed in the first partition of the scratch device side, tower in described second
Interior side is provided with the second refrigerator pipes, and the second refrigerator pipes outer end is provided with the second refrigeration machine on the outside of outer tower, and described
Two refrigerator pipes bottoms are additionally provided with liquefaction piece, are provided with second solenoid valve on the second partition of the liquefaction piece bottom, and described the
Tower interior side offers gas outlet in two, and fluid reservoir, the fluid reservoir are provided with second partition bottom inside the interior tower
Bottom offers liquid outlet, and the outer bottom of towe end is provided with base.
Preferably, the scratch device includes scraper, sleeve pipe and screwed pipe, and the screwed pipe is fixedly welded on set ttom of pipe
Portion, described sleeve pipe are fixedly connected on the top of electric expansion bar by screwed pipe, and described sleeve pipe top is fixedly welded with scraper, institute
It is loop configuration to state scraper, and diameter is identical with the first refrigerator pipes overall diameter.
Preferably, the outer tower, tower in first, tower and fluid reservoir are stainless steel material in second, and in described first
Tower internal temperature is arranged to -65 DEG C, and tower internal temperature is arranged to -85 DEG C in second, fluid reservoir internal temperature and bis- Nei Tanei
Portion's temperature is identical.
Preferably, the outer tower, tower in first, be enclosed with asbestos insulation board outside tower and fluid reservoir in second.
Preferably, described air inlet one end is additionally provided with valve, flow controller and pressure controller.
Preferably, first refrigeration machine and the second refrigeration machine are free-piston type sterlin refrigerator.
Preferably, it is additionally provided with the second partition of the first partition bottom and bends upward liquid collecting plate.
Compared with prior art, the beneficial effects of the invention are as follows：The low-temperature liquefaction method produces CO2 method and device, leads to
The design of scratch device is crossed, avoids the thing covering that is cured outside refrigerator pipes so that influenceing refrigeration, while protect system
Cold pipe, accelerate refrigerating efficiency；By the design for the piece that liquefies, in CO2During low-temperature liquefaction, guide functions can be played, are possessed
The advantages that step is reasonable in design, liquefaction effect is good.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is the second refrigerator pipes structural representation of the invention；
Fig. 3 is scratch device cross-sectional view of the present invention.
In figure：1 first refrigeration machine, 2 scratch devices, 3 outer towers, 4 first partitions, tower, 6 second refrigeration machines, 7 second systems in 5
Cold pipe, 8 second partitions, 9 vacuum chambers, 10 bases, 11 liquid outlets, 12 air inlets, 13 first refrigerator pipes, tower, 15 in 14 first
One magnetic valve, tower in 16 second, 17 gas outlets, 18 liquefaction pieces, 19 second solenoid valves, 20 fluid reservoirs, 21 scrapers, 22 sleeve pipes,
24 screwed pipes.
Embodiment
Below in conjunction with the brief description of the drawings in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Based on the embodiment in the present invention, those of ordinary skill in the art are obtained all under the premise of creative work is not made
Other embodiment, belong to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme：A kind of low-temperature liquefaction method produces CO2Method, including such as
Lower step：
S1、：Gas is passed through tower 14 in first by air inlet 12, the first refrigerator pipes connected by the first refrigeration machine 1
13 pairs of gases cool, due to the ratio CO that the internal temperature of tower 14 is set in first2Boiling point is high, and boiling point compares CO2Low gas is realized
Now liquefaction and solidification, solidfied material are attached on the outer wall of the first refrigerator pipes 13, removed by scratch device 2；
S2、：The first magnetic valve 15 is opened, gas is passed through in second inside tower 16, due to the internal temperature of tower 16 in second
The ratio CO of setting2Boiling point is high, CO2It can liquefy, by low on liquefaction piece 18；
S3、：Open second solenoid valve 19, the CO after liquefaction2It is collected into fluid reservoir 20.
A kind of low-temperature liquefaction method produces CO2Device, including outer tower 3, interior tower 5 and fluid reservoir 20, inside the outer tower 3
Interior tower 5 is provided with, vacuum chamber 9 is provided between outer tower 3 and interior tower 5, first partition 4 and second is installed inside the interior tower 5
Dividing plate 8, the first partition 4 and second partition are distributed about 8 and divide interior tower 5 for tower 16, institute in tower 14 and second in first
State the inner tip of tower 14 in first and be provided with the first refrigerator pipes 13, the top of the first refrigerator pipes 13 is provided with outside outer tower 3
First refrigeration machine 1, offers air inlet 12 on the outer tower 3 of the side of the first refrigeration machine 1, tower in the air inlet 12 and first
14 connections, the bottom of the first refrigerator pipes 13 is installed with scratch device 2, the side of scratch device 2 in first partition 4
First partition 4 on the first magnetic valve 15 is installed, the interior side of tower 16 is provided with the second refrigerator pipes 7 in described second, described
The outer end of second refrigerator pipes 7 is provided with the second refrigeration machine 6 in the outer outside of tower 3, and the bottom of the second refrigerator pipes 7 is additionally provided with liquefaction piece
18, second solenoid valve 19 is provided with the second partition 8 of liquefaction piece 18 bottom, and the interior side of tower 165 is opened in described second
Provided with gas outlet 17, fluid reservoir 20 is provided with inside the interior tower 5 in the bottom of second partition 8, the bottom of fluid reservoir 20 opens up
There is liquid outlet 11, the outer bottom of tower 3 is provided with base 10.
Further, the scratch device 2 includes scraper 21, sleeve pipe 22 and screwed pipe 24, and the screwed pipe 24 fixes weldering
The bottom of sleeve pipe 22 is connected on, described sleeve pipe 22 is fixedly connected on the top of electric expansion bar by screwed pipe 24, and described sleeve pipe 22 is pushed up
End is fixedly welded with scraper 21, and the scraper 21 is loop configuration, and diameter is identical with the overall diameter of the first refrigerator pipes 13.
Further, tower 16 and fluid reservoir 20 are stainless steel material in tower 14, second in the outer tower 3, first, and
The internal temperature of tower 14 is arranged to -65 DEG C in described first, and the internal temperature of tower 16 is arranged to -85 DEG C in second, inside fluid reservoir 20
Temperature is identical with the internal temperature of tower in second 16.
Further, it is enclosed with asbestos guarantor outside tower 16 and fluid reservoir 20 in tower 14, second in the outer tower 3, first
Warm plate.
Further, described one end of air inlet 12 is additionally provided with valve, flow controller and pressure controller.
Further, the refrigeration machine 6 of the first refrigeration machine 1 and second is free-piston type sterlin refrigerator.
Further, it is additionally provided with the second partition 8 of the bottom of first partition 4 and bends upward liquid collecting plate.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of low-temperature liquefaction method produces CO2Method, it is characterised in that comprise the following steps：
S1、：Gas is passed through tower in first (14) by air inlet (12), the first refrigeration connected by the first refrigeration machine (1)
Pipe (13) cools to gas, the ratio CO that tower (14) internal temperature is set in first2Boiling point is high, and boiling point compares CO2Low gas
Know from experience and liquefaction and solidification occur, solidfied material is attached on the first refrigerator pipes (13) outer wall, is removed by scratch device (2)；
S2、：The first magnetic valve (15) is opened, it is internal that gas is passed through into tower in second (16), due to the internal temperature of tower (16) in second
Spend the ratio CO set2Boiling point is high, CO2It can liquefy, by low on liquefaction piece (18)；
S3、：Open second solenoid valve (19), the CO after liquefaction2It is collected into fluid reservoir (20).
2. a kind of low-temperature liquefaction method produces CO2Device, including outer tower (3), interior tower (5) and fluid reservoir (20), it is characterised in that：
The outer tower (3) is internally provided with interior tower (5), and vacuum chamber (9), the interior tower (5) are provided between outer tower (3) and interior tower (5)
Inside is provided with first partition (4) and second partition (8), and the first partition (4) and second partition (8) are distributed and by up and down
Tower (5) is divided into tower (16) in tower in first (14) and second, and tower (14) inner tip is provided with the first refrigerator pipes in described first
(13), the first refrigerator pipes (13) top is provided with the first refrigeration machine (1), first refrigeration machine (1) outside Wai Ta (3)
Air inlet (12) is offered on the outer tower (3) of side, the air inlet (12) connects with tower in first (14), first refrigeration
Pipe (13) bottom is installed with scratch device (2), the first partition of scratch device (2) side in first partition (4)
(4) the first magnetic valve (15) is installed on, tower (16) interior side is provided with the second refrigerator pipes (7) in described second, and described
Two refrigerator pipes (7) outer end is provided with the second refrigeration machine (6) on the outside of Wai Ta (3), and the second refrigerator pipes (7) bottom is additionally provided with
Liquefy piece (18), is provided with second solenoid valve (19) on the second partition (8) of described liquefaction piece (18) bottom, tower in described second
(16) interior side offers gas outlet (17), and the interior tower (5) is internal to be provided with fluid reservoir in second partition (8) bottom
(20), fluid reservoir (20) bottom offers liquid outlet (11), and outer tower (3) bottom is provided with base (10).
A kind of 3. low-temperature liquefaction method production CO according to claim 22Device, it is characterised in that：The scratch device
(2) scraper (21), sleeve pipe (22) and screwed pipe (24) are included, the screwed pipe (24) is fixedly welded on sleeve pipe (22) bottom, institute
The top that sleeve pipe (22) is fixedly connected on electric expansion bar by screwed pipe (24) is stated, described sleeve pipe (22) top is fixedly welded with
Scraper (21), the scraper (21) are loop configuration, and its diameter is identical with the first refrigerator pipes (13) overall diameter.
A kind of 4. low-temperature liquefaction method production CO according to claim 22Device, it is characterised in that：The outer tower (3),
Tower (14) in one, tower (16) and fluid reservoir (20) are stainless steel material in second, and tower (14) internal temperature in described first
It is arranged to -65 DEG C, tower (16) internal temperature is arranged to -85 DEG C in second, tower (16) in fluid reservoir (20) internal temperature and second
Internal temperature is identical.
A kind of 5. low-temperature liquefaction method production CO according to claim 22Device, it is characterised in that：The outer tower (3),
Tower (14) in one, the outside of tower (16) and fluid reservoir (20) is enclosed with asbestos insulation board in second.
A kind of 6. low-temperature liquefaction method production CO according to claim 22Device, it is characterised in that：The air inlet (12)
One end is additionally provided with valve, flow controller and pressure controller.
A kind of 7. low-temperature liquefaction method production CO according to claim 22Device, it is characterised in that：First refrigeration machine
(1) and the second refrigeration machine (6) is free-piston type sterlin refrigerator.
A kind of 8. low-temperature liquefaction method production CO according to claim 22Device, it is characterised in that：The first partition
(4) it is additionally provided with the second partition (8) of bottom and bends upward liquid collecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915172.5A CN107806742A (en) | 2017-09-30 | 2017-09-30 | A kind of low-temperature liquefaction method produces CO2Method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915172.5A CN107806742A (en) | 2017-09-30 | 2017-09-30 | A kind of low-temperature liquefaction method produces CO2Method and device |
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| Publication Number | Publication Date |
|---|---|
| CN107806742A true CN107806742A (en) | 2018-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710915172.5A Pending CN107806742A (en) | 2017-09-30 | 2017-09-30 | A kind of low-temperature liquefaction method produces CO2Method and device |
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| CN (1) | CN107806742A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1186842A1 (en) * | 2000-09-11 | 2002-03-13 | Carboxyque Française | Process and device for the packaging of carbon dioxide snow in a plastic film |
| CN101126609A (en) * | 2006-08-14 | 2008-02-20 | 张吉礼 | Condensation tube drainage device |
| CN102257341A (en) * | 2008-12-19 | 2011-11-23 | 乔治洛德方法研究和开发液化空气有限公司 | Method for trapping carbon dioxide by cryocondensation |
| CN106237648A (en) * | 2016-09-29 | 2016-12-21 | 天津大学 | Low-temperature carbon dioxide segregation apparatus |
-
2017
- 2017-09-30 CN CN201710915172.5A patent/CN107806742A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1186842A1 (en) * | 2000-09-11 | 2002-03-13 | Carboxyque Française | Process and device for the packaging of carbon dioxide snow in a plastic film |
| CN101126609A (en) * | 2006-08-14 | 2008-02-20 | 张吉礼 | Condensation tube drainage device |
| CN102257341A (en) * | 2008-12-19 | 2011-11-23 | 乔治洛德方法研究和开发液化空气有限公司 | Method for trapping carbon dioxide by cryocondensation |
| CN106237648A (en) * | 2016-09-29 | 2016-12-21 | 天津大学 | Low-temperature carbon dioxide segregation apparatus |
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Application publication date: 20180316 |