CN206045720U - A kind of exhaust gas processing device of subcritical abstraction technique - Google Patents
A kind of exhaust gas processing device of subcritical abstraction technique Download PDFInfo
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- CN206045720U CN206045720U CN201621067974.2U CN201621067974U CN206045720U CN 206045720 U CN206045720 U CN 206045720U CN 201621067974 U CN201621067974 U CN 201621067974U CN 206045720 U CN206045720 U CN 206045720U
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Abstract
A kind of exhaust gas processing device of subcritical abstraction technique, including the solvent tank, tail-gas compressor, First Heat Exchanger, the second heat exchanger and the tail gas tank that are sequentially connected, and the zone of heat liberation of solvent tank, tail-gas compressor, First Heat Exchanger, the zone of heat liberation of the second heat exchanger and tail gas tank constitute closed-loop path, the import of the second heat exchanger cold fluid pass is connected with tail gas pot bottom.
Description
Technical field
This utility model is related to exhaust gas processing device, more particularly to the exhaust gas processing device of subcritical abstraction technique.
Background technology
In recent years, subcritical abstraction technology has had a great development, nineteen ninety patent of invention《Liquefied petroleum gas is leached
Oil technology》（The patent No.：90108660.6）It is earliest subcritical abstraction patent, initially this technology is mainly used in plant
The extraction of oils and fatss.With the development of this technology, current subcritical abstraction technology main application fields have：1st, with Semen sojae atricolor,
The vegetable oil extraction field for representative such as Semen arachidis hypogaeae, Semen Juglandiss, Fructus Tritici aestivi, Semen Vitis viniferae, Semen Armeniacae Amarum, seed of Flos Moutan, Semen Lini；2nd, with ten thousand longevity
Chrysanthemum phylloxanthin, capsicum red pigment are that the plant pigment of representative extracts field；3rd, with Flos Rosae Rugosae, ten Herba Coriandris, Lignum Aquilariae Resinatum, Lignum Santali Albi, Fructus Foeniculi,
Bulbus Allii etc. extracts field for the plants essential oil of representative；4th, Ganoderma spore oil, microbial oil extract field；5th, Nicotiana tabacum L. extracts nicotine
And tar precursor thing, extraction Nicotiana tabacum L. flavor matter field；6th, raw wool removing lanoline field；7th, with Folium Camelliae sinensis, Nicotiana tabacum L., Chinese herbal medicine
For the removing pesticide residues field for representing；8th, the Chinese herbal medicine effective ingredientses with Fructus Schisandrae Chinensis, Semen Cucurbitae, Folium Artemisiae Argyi etc. as representative extract neck
Domain；9th, the removing of the insecticide lipoids with tenebrio molitor, Pupa bombycises as representative；10th, the fish and shrimp quasi-grease with Acipenser Sinensis, squid as representative into
Removing for dividing etc..Using subcritical solvent have propane, butane, iso-butane, dimethyl ether, R134a etc..
In subcritical abstraction production process, although have passed through evacuation after being extracted material charging, can also bring into a small amount of
Air, add other vacuum equipment leaked-in airs in technique, last these air all gather the upper space of solvent tank,
The gaseous mixture of danger is formed with solvent gas, potential safety hazard is not only caused, solvent pressure tank is constantly raised, cause compression
Machine pressure at expulsion is raised and increases power consumption.These air that can not be liquefied are referred to as tail gas, and current emission is all according to molten
The pressure of agent tank is discharged, and is directly discharged in air, and substantial amounts of solvent gas have been taken away in tail gas, not only uneconomical but also uneasy
Entirely.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to reclaim the solvent in tail gas, is reduced molten
The waste of agent, while reducing the discharge of solvent in tail gas, reduces the device of atmospheric pollution.
To achieve these goals, concrete technical scheme of the present utility model is：A kind of tail gas of subcritical abstraction technique
Processing meanss, including the solvent tank, tail-gas compressor, First Heat Exchanger, the second heat exchanger and the tail gas tank that are sequentially connected, and solvent
Tank, tail-gas compressor, the zone of heat liberation of First Heat Exchanger, the zone of heat liberation of the second heat exchanger and tail gas tank are constituted and are closed back
Road, the import of the second heat exchanger cold fluid pass are connected with tail gas pot bottom.
The import of the second exchanger heat fluid passage is connected with the outlet of First Heat Exchanger zone of heat liberation, and second changes
The hot outlet of device zone of heat liberation is connected with the top of tail gas tank.
The import of the solvent tank is connected with the bottom of tail gas tank.
The tail gas tank top is provided with gas automatic decompression valve.
The tail-gas compressor be propane compressor, butane compressor, liquefied petroleum air compressor, freon compressore,
One kind in membrane compressor and ammonia compressor.
The compression ratio of the tail-gas compressor is 2～4.
This utility model simple structure, it is easy to use.
The principle liquefied under high pressure and low temperature using solvent in tail gas, this device by tail gas be compressed with low temperature
Reason, so as to carry out being separated and recovered from recycling solvent liquefaction therein and tail gas, reduces solvent consumption；Tail gas after process
It is vented again, is improve the safety of exhaust emissions.
Description of the drawings
Fig. 1 is this utility model structural representation.
Specific embodiment
As shown in figure 1, concrete technical scheme of the present utility model is：A kind of vent gas treatment dress of subcritical abstraction technique
Put, including the solvent tank 5, tail-gas compressor 1, First Heat Exchanger 2, the second heat exchanger 3 and the tail gas tank 4 that are sequentially connected, and solvent
Tank 5, tail-gas compressor 1, the zone of heat liberation of First Heat Exchanger 2, the zone of heat liberation of the second heat exchanger 3 and tail gas tank 4 are constituted
Closed-loop path, the import of 3 cold fluid pass of the second heat exchanger are connected with 4 bottom of tail gas tank.
The import of 3 zone of heat liberation of the second heat exchanger is connected with the outlet of 2 zone of heat liberation of First Heat Exchanger, the second heat exchange
The outlet of 3 zone of heat liberation of device is connected with the top of tail gas tank 4.The import of solvent tank 5 is connected with the bottom of tail gas tank 4.
4 top of tail gas tank is provided with gas automatic decompression valve 6, when the pressure in tail gas tank 4 is excessive, gas automatic decompression valve
6 automatically open up deflation, it is ensured that the tail gas that the safety of tail gas tank 4 finally discharge were processed.
Tail-gas compressor 1 is propane compressor, butane compressor, liquefied petroleum air compressor, freon compressore, barrier film
One kind in formula compressor and ammonia compressor.
The compression ratio of tail-gas compressor 1 is less than 4, according to physical principle, the pressure of tail gas compression is bigger, freezing temperature more
Low, the solvent condensed out in tail gas is more, but weighs equipment investment, power consumption, the factor such as safety, and tail-gas compressor 1 is by tail gas pressure
Power is compressed to the pressure value of tail gas tank 4 from 5 pressure value of solvent tank, and about compression ratio is 2 to 4 relatively reasonable.Compressed tail gas temperature
70 DEG C will not be risen to, the autoignition temperature of solvent is reached far away, safety is secure.
During this equipment works, tail gas is compressed into tail-gas compressor 1 by solvent tank 5, the tail after compression
Gas is entered in the zone of heat liberation of First Heat Exchanger 2, and cooling water is connected with the cold fluid pass of First Heat Exchanger 2, and tail gas is pressed
Outside heat release after contracting, the heat of its release are taken away by the cooling water in 2 cold fluid pass of First Heat Exchanger, and exhaust temperature is reduced,
The partial solvent carried in tail gas is liquefied, and the gas-liquid mixture in 2 zone of heat liberation of First Heat Exchanger enters the second heat exchanger 3
Zone of heat liberation in, tail gas tank 4 is entered by the second heat exchanger 3 then, the gas-liquid separation in the tail gas tank 4, the solvent of liquefaction are big
Part returns in solvent tank 5 and recycles, and another fraction is entered in the cold fluid pass of the second heat exchanger 3, the second heat exchanger 3
The outlet of cold fluid pass is connected with other suctions port of compressor in outside subcritical abstraction technique, and the solvent of liquefaction is in the second heat exchange
In the cold fluid pass of device 3, vaporization heat absorption, further reduces the temperature in 3 zone of heat liberation of the second heat exchanger, in making tail gas
Solvent further liquefies, so as to improve the efficiency of solvent liquefaction recovery, while vaporization in the cold fluid pass of the second heat exchanger 3
Solvent other compressors in subcritical abstraction technique are liquefied collection, due in 3 cold fluid pass of the second heat exchanger as cold
The quantity of solvent of matchmaker is very little, therefore other compressors will not be impacted, and when the pressure in tail gas tank 4 is excessive, gas is certainly
Dynamic relief valve 6 automatically opens up deflation, now the most of recovery of having liquefied of the solvent in tail gas, so 6 row of gas automatic decompression valve
The tail gas for removing reduces environmental pollution.
Claims (7)
1. a kind of exhaust gas processing device of subcritical abstraction technique, it is characterised in that：Including the solvent tank, tail gas pressure that are sequentially connected
Contracting machine, First Heat Exchanger, the second heat exchanger and tail gas tank, and the hot fluid of solvent tank, tail-gas compressor, First Heat Exchanger is logical
Road, the zone of heat liberation of the second heat exchanger and tail gas tank constitute closed-loop path, the import of the second heat exchanger cold fluid pass and tail
Gas tank bottom connects.
2. the exhaust gas processing device of a kind of subcritical abstraction technique according to claim 1, it is characterised in that：Described second
The import of exchanger heat fluid passage is connected with the outlet of First Heat Exchanger zone of heat liberation, the second exchanger heat fluid passage
Outlet is connected with the top of tail gas tank.
3. the exhaust gas processing device of a kind of subcritical abstraction technique according to claim 2, it is characterised in that：The solvent
The import of tank is connected with the bottom of tail gas tank.
4. the exhaust gas processing device of a kind of subcritical abstraction technique according to claim 1 or 3, it is characterised in that：It is described
Tail gas tank top is provided with gas automatic decompression valve.
5. the exhaust gas processing device of a kind of subcritical abstraction technique according to claim 1, it is characterised in that：The tail gas
Compressor is propane compressor, butane compressor, liquefied petroleum air compressor, freon compressore, membrane compressor and ammonia
One kind in compressor.
6. a kind of exhaust gas processing device of subcritical abstraction technique according to claim 1 or 5, it is characterised in that：It is described
The compression ratio of tail-gas compressor is 2～4.
7. the exhaust gas processing device of a kind of subcritical abstraction technique according to claim 6, it is characterised in that：The tail gas
The compression ratio of compressor is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067974.2U CN206045720U (en) | 2016-09-21 | 2016-09-21 | A kind of exhaust gas processing device of subcritical abstraction technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067974.2U CN206045720U (en) | 2016-09-21 | 2016-09-21 | A kind of exhaust gas processing device of subcritical abstraction technique |
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| CN206045720U true CN206045720U (en) | 2017-03-29 |
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| CN201621067974.2U Active CN206045720U (en) | 2016-09-21 | 2016-09-21 | A kind of exhaust gas processing device of subcritical abstraction technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587894A (en) * | 2018-08-01 | 2018-09-28 | 石家庄志杰科技股份有限公司 | Biofermentation steam tail gas heat energy recycling system and method |
| CN117073309A (en) * | 2023-09-04 | 2023-11-17 | 河北新启元能源技术开发股份有限公司 | Tail gas cooling system of green low-carbon butane method |
-
2016
- 2016-09-21 CN CN201621067974.2U patent/CN206045720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587894A (en) * | 2018-08-01 | 2018-09-28 | 石家庄志杰科技股份有限公司 | Biofermentation steam tail gas heat energy recycling system and method |
| CN117073309A (en) * | 2023-09-04 | 2023-11-17 | 河北新启元能源技术开发股份有限公司 | Tail gas cooling system of green low-carbon butane method |
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