CN216171182U - Cryogenic system is retrieved to gaseous adsorber of VOC - Google Patents
Cryogenic system is retrieved to gaseous adsorber of VOC Download PDFInfo
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- CN216171182U CN216171182U CN202122646072.1U CN202122646072U CN216171182U CN 216171182 U CN216171182 U CN 216171182U CN 202122646072 U CN202122646072 U CN 202122646072U CN 216171182 U CN216171182 U CN 216171182U
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- pipeline
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- 238000001816 cooling Methods 0.000 claims abstract description 46
- 239000006096 absorbing agent Substances 0.000 claims abstract description 41
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 17
- 239000002826 coolant Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 44
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000110 cooling liquid Substances 0.000 abstract description 5
- 239000000112 cooling gas Substances 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 231100000987 absorbed dose Toxicity 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Separation Of Gases By Adsorption (AREA)
Abstract
A VOC gas adsorber recovery cryogenic system, one side of the primary adsorber is provided with a secondary adsorber, the other side of the primary adsorber is respectively provided with a cooling fan, a normal temperature heat exchanger, a plate heat exchanger, a cryogenic heat exchanger and a cryogenic unit, pipelines are arranged between the secondary adsorber and the cooling fan as well as between the primary adsorber and the plate heat exchanger, the normal temperature heat exchanger is respectively provided with a pipeline between the cooling fan and the plate heat exchanger, the plate heat exchanger is respectively provided with a pipeline between the plate heat exchanger and an inlet and a left port of the cryogenic heat exchanger, one side of the cryogenic heat exchanger is provided with the cryogenic unit, a solvent tank is arranged below the cryogenic heat exchanger, pipelines are arranged between a cooling liquid inlet and a cooling liquid outlet of the cryogenic unit and the cryogenic heat exchanger, the solvent tank and the cryogenic heat exchanger and the plate heat exchanger are respectively provided with pipelines, and valves are arranged on connecting pipelines of each component; the device can carry out cryogenic heat exchange, recycle the cooling gas, save energy, protect environment, have good cooling effect and little residual amount of VOC gas in the absorber.
Description
Technical Field
The utility model relates to the field of VOC gas recovery, in particular to a VOC gas absorber recovery cryogenic system.
Background
The VOC gas mainly comes from the exhaust gas of the petrochemical industry, the chlorine-containing organic matter for washing and the organic solvent of the coating system, the discharge of the VOC gas into the atmosphere can cause a series of problems of health, environment, safety and the like, in the field of VOC gas treatment, adsorption recovery is a main and effective treatment method, the treatment process is mainly characterized in that VOC gas is adsorbed by granular activated carbon in a primary adsorber, and after the primary adsorber is nearly saturated, heating by a heat exchanger for desorption regeneration, desorbing the solvent in the primary absorber and allowing the solvent to enter the secondary absorber for high-concentration adsorption in the secondary absorber, and the first-stage absorber is cooled and condensed to recover the residual VOC gas in the first-stage absorber so as to be used for secondary absorption, and then the organic volatile matters in the secondary adsorber are converted into liquid substances by a condensation recovery method and directly used for reuse.
Present existing equipment is to the cooling of adsorber, the condensation is retrieved mainly and is carried out the heat transfer through the normal temperature heat exchanger, there is the cooling effect unsatisfactory, the cooling time is long, and still remain a large amount of VOC gas in the adsorber through the normal temperature heat exchanger cooling, can reduce the adsorber and adsorb the gaseous absorbed dose of VOC again, therefore, how to solve and cool down the adsorber through the normal temperature heat exchanger heat transfer, the residual VOC gas is retrieved in the condensation, the cooling effect that exists is unsatisfactory, the cooling time is long, and still remain a large amount of VOC gas in the adsorber through the normal temperature heat exchanger cooling, can reduce the problem that the adsorber adsorbs the gaseous absorbed dose of VOC again and become the technological problem that is difficult to solve for a long time.
In view of the above, a cryogenic system for VOC gas adsorber recovery has been developed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a VOC gas absorber recycling cryogenic system, aiming at solving the problems that the residual VOC gas is recovered by condensation and cooling an absorber through heat exchange of a normal-temperature heat exchanger, the existing cooling effect is not ideal, the cooling time is long, and a large amount of VOC gas still remains in the absorber cooled by the normal-temperature heat exchanger, so that the absorption capacity of the absorber for adsorbing the VOC gas again can be reduced; can carry out preliminary heat transfer through the normal temperature heat exchanger, provide the coolant liquid through the cryrogenic heat exchanger and carry out the cryrogenic heat transfer, recycle refrigerated gas circulation through plate heat exchanger, energy-concerving and environment-protective, the cooling, it is effectual to cool down, the gaseous surplus of VOC is few in the adsorber after the cooling, the effectual heat of having solved is to the adsorber cooling through the normal temperature heat exchanger heat transfer, the residual VOC gas is retrieved in the condensation, the cooling effect of existence is unsatisfactory, the cooling time is long, and still remain a large amount of VOC gases in the adsorber through the normal temperature heat exchanger cooling, can reduce the problem of the adsorption capacity that the adsorber adsorbs the VOC gas once more.
In order to achieve the purpose, the utility model adopts the following technical scheme: a VOC gas adsorber recovery cryogenic system comprises: the system comprises a primary absorber, a secondary absorber, a cooling fan, a normal temperature heat exchanger, a plate heat exchanger, a cryogenic unit, a solvent tank, a pipeline and a valve; one side of the primary absorber is provided with a secondary absorber, the other side of the primary absorber is respectively provided with a cooling fan, a normal temperature heat exchanger, a plate heat exchanger, a cryogenic heat exchanger and a cryogenic unit, a pipeline is arranged between the right port of the primary absorber, the left port of the secondary absorber and the inlet of the cooling fan, a pipeline is arranged between the left port of the primary absorber, the right port of the secondary absorber and the lower port of the plate heat exchanger, a pipeline is arranged between the outlet of the cooling fan and the inlet of the normal temperature heat exchanger, a pipeline is arranged between the outlet of the normal temperature heat exchanger and the right port of the plate heat exchanger, a pipeline is arranged between the left port of the plate heat exchanger and the inlet of the cryogenic heat exchanger, one side of the cryogenic heat exchanger is provided with the cryogenic unit, a solvent tank is arranged below the cryogenic heat exchanger, and a pipeline is arranged between the outlet of the coolant of the cryogenic unit and the inlet of the coolant of the cryogenic heat exchanger, a pipeline is arranged between a cooling liquid inlet of the cryogenic unit and a cooling liquid outlet of the cryogenic heat exchanger, a pipeline is arranged between a liquid inlet of the solvent tank and a liquid outlet of the cryogenic heat exchanger and a liquid outlet of the plate type heat exchanger respectively, and valves are arranged on connecting pipelines of all the components.
The primary adsorber and the secondary adsorber are both tank-shaped adsorbers, and activated carbon adsorption materials are filled in the tank-shaped adsorbers.
The cooling fan is a closed circulating fan.
The working principle is as follows: when the first-stage adsorber is cooled, a valve on a pipeline between a first-stage adsorber cooling fan is opened, a valve between the first-stage adsorber and a plate heat exchanger is opened, valves on other pipelines are closed, the cooling fan and a cryogenic unit are started, VOC gas in the first-stage adsorber enters a normal heat exchanger through the cooling fan to be primarily cooled, the VOC gas which is primarily cooled enters the plate heat exchanger through the pipeline, one part of the VOC gas which is cooled by the plate heat exchanger is condensed and liquefied and enters a solvent tank, the other part of the VOC gas enters the cryogenic heat exchanger, one part of the VOC gas which is cooled by the cryogenic heat exchanger is condensed and liquefied by the cryogenic heat exchanger and enters the solvent tank, the other part of the VOC gas enters the plate heat exchanger through a left port of the cryogenic heat exchanger and an upper port of the plate heat exchanger, the VOC gas which passes through the plate heat exchanger is cooled and enters the first-stage adsorber to be cooled, the circulation is repeated, so that the temperature of the primary absorber is reduced to the standard requirement, and the temperature of the primary absorber is stopped to be reduced;
when the second-stage adsorber is cooled, a valve on a pipeline between the second-stage adsorber cooling fans is opened, a valve between the second-stage adsorber and the plate heat exchanger is opened, valves on other pipelines are closed, the cooling fans and the cryogenic unit are started, VOC gas in the second-stage adsorber enters the normal heat exchanger through the cooling fans to be primarily cooled, the VOC gas which is primarily cooled enters the plate heat exchanger through the pipeline, one part of the VOC gas which is cooled by the plate heat exchanger is condensed and liquefied and enters the solvent tank, the other part of the VOC gas enters the cryogenic heat exchanger, one part of the VOC gas which is cooled by the cryogenic heat exchanger is condensed and liquefied by the cryogenic heat exchanger and enters the solvent tank, the other part of the VOC gas enters the plate heat exchanger through the left port of the cryogenic heat exchanger and the upper port of the plate heat exchanger, and the VOC gas which passes through the plate heat exchanger is cooled and enters the second-stage adsorber to be cooled, the circulation is repeated, so that the secondary absorber stops being cooled after being cooled to the standard requirement.
The utility model has the beneficial effects that: the utility model can primarily exchange heat through the normal temperature heat exchanger, provide cooling liquid through the cryogenic heat exchanger to exchange heat deeply, recycle cooled gas through the plate heat exchanger, is energy-saving and environment-friendly, has good cooling and cooling effects, has little residual VOC gas in the cooled absorber, and effectively solves the problems that the residual VOC gas is recovered by cooling and condensing the absorber through the heat exchange of the normal temperature heat exchanger, the existing cooling effect is unsatisfactory, the cooling time is long, and a large amount of VOC gas is still remained in the absorber cooled by the normal temperature heat exchanger, so that the absorption capacity of the absorber to adsorb the VOC gas again can be reduced.
Description of the drawings:
the utility model will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the final assembly of the present invention;
FIG. 2 is a schematic view of the gas flow direction of the present invention;
in the figure: the device comprises a primary adsorber 1, a secondary adsorber 2, a cooling fan 3, a normal-temperature heat exchanger 4, a plate heat exchanger 5, a cryogenic heat exchanger 6, a cryogenic unit 7, a solvent tank 8, a pipeline 9, a valve 10 and hollow arrows which represent the flowing direction of gas.
Detailed Description
The utility model will be described in further detail with reference to the following detailed description and accompanying drawings:
one side of the primary absorber 1 is provided with a secondary absorber 2, the other side of the primary absorber 1 is respectively provided with a cooling fan 3, a normal temperature heat exchanger 4, a plate heat exchanger 5, a cryogenic heat exchanger 6 and a cryogenic unit 7, the right port of the primary absorber 1, the left port of the secondary absorber 2 and the inlet of the cooling fan 3 are provided with a pipeline 9, the left port of the primary absorber 1, the right port of the secondary absorber 2 and the lower port of the plate heat exchanger 5 are provided with a pipeline 9, the outlet of the cooling fan 3 and the inlet of the normal temperature heat exchanger 4 are provided with a pipeline 9, the outlet of the normal temperature heat exchanger 4 and the right port of the plate heat exchanger 5 are provided with a pipeline 9, the left port of the plate heat exchanger 5 and the inlet of the cryogenic heat exchanger 6 are provided with a pipeline 9, one side of the cryogenic heat exchanger 6 is provided with the cryogenic unit 7, the below of cryrogenic heat exchanger 6 sets up solvent jar 8, the coolant liquid of cryrogenic unit 7 export and the coolant liquid of cryrogenic heat exchanger 6 import between set up pipeline 9, set up pipeline 9 between the coolant liquid of cryrogenic unit 7 import and the coolant liquid of cryrogenic heat exchanger 6 export, the inlet of solvent jar 8 respectively with the liquid outlet of cryrogenic heat exchanger 6, set up pipeline 9 between the liquid outlet of plate heat exchanger 5, all set up valve 10 on each part connecting tube 9.
The primary adsorber 1 and the secondary adsorber 2 are both tank-shaped adsorbers, and activated carbon adsorption materials are filled in the tank-shaped adsorbers.
The cooling fan 3 is a closed circulating fan.
Claims (3)
1. A VOC gas adsorber recovery cryogenic system comprises: one-level adsorber (1), second grade adsorber (2), cooling fan (3), normal atmospheric temperature heat exchanger (4), plate heat exchanger (5), cryrogenic heat exchanger (6), cryrogenic unit (7), solvent tank (8), pipeline (9), valve (10) constitute its characterized in that: one side of the primary absorber (1) is provided with a secondary absorber (2), the other side of the primary absorber (1) is respectively provided with a cooling fan (3), a normal temperature heat exchanger (4), a plate heat exchanger (5), a cryogenic heat exchanger (6) and a cryogenic unit (7), a pipeline (9) is arranged between the right port of the primary absorber (1), the left port of the secondary absorber (2) and the inlet of the cooling fan (3), a pipeline (9) is arranged between the left port of the primary absorber (1), the right port of the secondary absorber (2) and the lower port of the plate heat exchanger (5), a pipeline (9) is arranged between the outlet of the cooling fan (3) and the inlet of the normal temperature heat exchanger (4), a pipeline (9) is arranged between the outlet of the normal temperature heat exchanger (4) and the right port of the plate heat exchanger (5), a pipeline (9) is arranged between the left port of the plate heat exchanger (5) and the inlet of the cryogenic heat exchanger (6), set up pipeline (9) between the left side mouth of cryrogenic heat exchanger (6) and the suitable for reading of plate heat exchanger (5), one side of cryrogenic heat exchanger (6) set up cryrogenic unit (7), the below of cryrogenic heat exchanger (6) sets up solvent jar (8), the coolant liquid export of cryrogenic unit (7) and the coolant liquid import of cryrogenic heat exchanger (6) between set up pipeline (9), set up pipeline (9) between the coolant liquid import of cryrogenic unit (7) and the coolant liquid export of cryrogenic heat exchanger (6), the inlet of solvent jar (8) respectively with the liquid outlet of cryrogenic heat exchanger (6), set up pipeline (9) between the liquid outlet of plate heat exchanger (5), all set up valve (10) on each part connecting tube (9).
2. The cryogenic system for recovering the VOC gas adsorber according to claim 1, characterized in that: the primary adsorber (1) and the secondary adsorber (2) are both tank-shaped adsorbers, and activated carbon adsorption materials are filled in the tank-shaped adsorbers.
3. The cryogenic system for recovering the VOC gas adsorber according to claim 1, characterized in that: the cooling fan (3) is a closed circulating fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122646072.1U CN216171182U (en) | 2021-11-01 | 2021-11-01 | Cryogenic system is retrieved to gaseous adsorber of VOC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122646072.1U CN216171182U (en) | 2021-11-01 | 2021-11-01 | Cryogenic system is retrieved to gaseous adsorber of VOC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216171182U true CN216171182U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122646072.1U Active CN216171182U (en) | 2021-11-01 | 2021-11-01 | Cryogenic system is retrieved to gaseous adsorber of VOC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216171182U (en) |
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2021
- 2021-11-01 CN CN202122646072.1U patent/CN216171182U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A VOC gas adsorber recovery cryogenic system Granted publication date: 20220405 Pledgee: Industrial and Commercial Bank of China Limited Luoyang Pilot Free Trade Zone Branch Pledgor: LUOYANG TIANBAO ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2024980008451 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |