CN219964906U - Active carbon steam high-efficient desorption device - Google Patents
Active carbon steam high-efficient desorption device Download PDFInfo
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- CN219964906U CN219964906U CN202321321873.3U CN202321321873U CN219964906U CN 219964906 U CN219964906 U CN 219964906U CN 202321321873 U CN202321321873 U CN 202321321873U CN 219964906 U CN219964906 U CN 219964906U
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- tank
- solvent
- steam
- granular carbon
- outlet
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 47
- 238000003795 desorption Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000002904 solvent Substances 0.000 claims description 32
- 238000003860 storage Methods 0.000 claims description 18
- 239000008187 granular material Substances 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 abstract description 18
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000001179 sorption measurement Methods 0.000 abstract description 5
- 239000012855 volatile organic compound Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 208000028659 discharge Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the field of VOCs recovery treatment, and relates to an active carbon steam efficient desorption device which comprises a granular carbon tank, wherein a tail gas inlet is formed in the upper part of the granular carbon tank, a clean gas outlet is formed in one side of the lower part of the granular carbon tank, a steam inlet is formed in the lower part of the other side of the lower part of the granular carbon tank, a corresponding upper gas outlet end is connected with an upper inlet end of a low-temperature condenser, a lower outlet end of the low-temperature condenser is connected with a water ring type vacuum pump, and an outlet end of the water ring type vacuum pump is connected with a circulating water tank. The utility model has scientific and reasonable design, is more thorough in analysis without any analysis residue due to the assistance of vacuum analysis steam, can effectively prolong the adsorption time of the carbon tank, not only reduces the analysis times, but also prolongs the service life of the granular carbon, and the service life of the normal granular carbon is 1 year, and the service life of the granular carbon can be prolonged to 2-3 years by adopting the device.
Description
Technical Field
The utility model belongs to the field of VOCs recovery treatment, relates to the technology of adsorbing VOCs by activated carbon, and particularly relates to an efficient active carbon steam desorption device.
Background
The technology for recycling organic gas in the prior art mainly comprises the following steps: cryogenic process, membrane concentration process, and adsorption condensation recovery process.
The organic gas recovery device in the cryogenic process needs to operate at the temperature of-35 ℃ to-75 ℃, has extremely high energy consumption, has high requirements on equipment materials and correspondingly high investment and operation cost, and is rarely used in developed countries.
The membrane concentration method has the advantages of low cost, low energy consumption, no secondary pollution, small occupied area, no need of stopping installation and maintenance, long continuous working period and the like. However, the membrane concentration method has high equipment cost and limited application range.
The adsorption condensation recovery method mainly adopts steam analysis, has higher energy consumption, has limited service life of the activated carbon adsorption material, generally needs to be used as hazardous waste treatment after replacement for about 1-2 years, and generates high hazardous waste treatment cost.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides the active carbon steam high-efficiency desorption device which adopts active carbon steam to carry out high-efficiency desorption on VOCs and assist vacuum analysis, so that the method can ensure that each analysis is thorough, the analysis has no residue, the service life of the active carbon can be prolonged, the replacement cost of auxiliary materials in the phase-change energy-saving later stage can be prolonged, and the vacuum assisted steam analysis can be realized more easily, thereby reducing the water vapor consumption, and simultaneously reducing the wastewater production, and the method is economical, efficient and environment-friendly.
The utility model solves the technical problems by adopting the following technical scheme:
the utility model provides an efficient desorption device of active carbon steam, includes the granule carbon tank, is provided with the tail gas air inlet on granule carbon tank upper portion, is provided with clean gas vent in granule carbon tank's lower part one side, and opposite side lower part is provided with the steam air inlet, and the upper portion gas outlet end that corresponds connects low temperature condenser upper portion entry end, and the water ring vacuum pump is connected to the lower part exit end of this low temperature condenser, and the circulating water tank is connected to water ring vacuum pump exit end.
And the circulating water tank is divided into three outlets, one is an upper noncondensable gas outlet, the noncondensable gas outlet is connected with a tail gas inlet, the second outlet for separating water from one side of the lower part is connected with the water ring type vacuum pump, and the third outlet for organic solvent from the lower part is connected with the inlet end of the solvent storage tank.
And the non-condensable gas outlet end at the upper part of the solvent storage tank and the non-condensable gas in the circulating water tank are gathered and returned to the tail gas inlet, the solvent outlet at one side of the lower part of the solvent storage tank is connected with a solvent pump, and the solvent pump outlet is connected with the corresponding relevant solvent storage tank.
The utility model has the advantages and positive effects that:
the utility model has scientific and reasonable design, and the vacuum analysis steam is adopted to assist, so that the analysis is more thorough without any analysis residue, the carbon tank adsorption time can be prolonged, the analysis times can be reduced, the service life of the granular carbon can be prolonged, the service life of the normal granular carbon can be prolonged to 1 year, and the service life of the granular carbon can be prolonged to 2-3 years by adopting the device.
The device disclosed by the utility model can save more energy consumption than single high-temperature steam analysis at 100 ℃, can save about 1-2 tons of steam per day, is more environment-friendly than single high-temperature steam analysis at 100 ℃, and can produce 2.5 tons of wastewater per day compared with single steam analysis, wherein the whole process is little in wastewater, and the device only produces 0.5 ton of wastewater per day.
The utility model is suitable for occasions with lower requirements on VOCs emission standard, and proves that the benzene single factor requirement is 5mg/m in practical application 3 Compared with single steam analysis, a large amount of wastewater can be generated, so that the method is more energy-saving and environment-friendly, can create a great profit for enterprises, can save energy and reduce consumption, and can meet the requirements of increasingly severe environment-friendly emission standards.
Drawings
Figure 1 is a schematic view of the structure of the device of the utility model,
wherein, 1, the granular carbon tank, 2, the low-temperature condenser, 3, the circulating water tank, 4, the solvent storage tank, 5, the solvent pump, 6, the water ring vacuum pump.
Detailed Description
The utility model will now be described in further detail by way of specific examples, which are given by way of illustration only and not by way of limitation, with reference to the accompanying drawings.
The utility model provides an active carbon steam high-efficient desorption device, shown in figure 1, including granule carbon tank 1, be provided with the tail gas air inlet in granule carbon tank 1 upper portion, be provided with clean gas vent in granule carbon tank 1 lower part one side, the opposite side lower part is provided with the steam air inlet, the upper portion gas outlet end that corresponds connects low temperature condenser 2 upper portion entry end, the lower part exit end of this low temperature condenser 2 connects water ring vacuum pump 6, water ring vacuum pump 6 exit end connects circulating water tank 3, circulating water tank 3 divides three routes export, and one is upper portion noncondensable gas outlet, and this noncondensable gas outlet is connected with the tail gas air inlet, and the second way is that the delivery port of lower part side minute water is connected with water ring vacuum pump 6, and the third way is that the organic solvent outlet end of lower part divides water and solvent storage tank 4 entry end, the noncondensable gas outlet end and the noncondensable gas of circulating water tank 3 upper portion gathers the return air inlet, solvent pump 5 is connected to solvent storage tank that the solvent pump 5 export was collected after the organic solvent storage tank appointed to the owner.
During operation, tail gas enters the granular carbon tank 1 from the tank top of the granular carbon tank 1, and clean gas discharged from the side surface of the bottom is directly discharged. The decompressed steam enters from the bottom of the side surface and is discharged from the top of the side surface, a steam outlet is connected with an inlet of a low-temperature condenser 2, an outlet of the low-temperature condenser 2 is connected with a water ring type vacuum pump 6, an outlet of the water ring type vacuum pump 6 is connected with a circulating water tank 3, an outlet of the circulating water tank 3 is divided into three paths, after the circulating water tank 3 carries out sufficient gas-liquid separation, noncondensable gas returns to a tail gas inlet from the top of the circulating water tank 3, the separated water returns to the circulating water ring type vacuum pump 6 from one side of the lower part of the circulating water pump for circulation, organic solvent flows into a solvent storage tank 4 from one side, and an outlet of the solvent storage tank 4 is divided into two paths, one path is noncondensable gas and is summarized with noncondensable gas of the circulating water tank and returns to the tail gas inlet; the other path of solvent storage tank 4 is connected with solvent pump 5, and the outlet of solvent pump 5 is the organic solvent that collects, beats to the solvent storage tank that the owner appointed.
The utility model relates to an active carbon steam high-efficiency desorption device which is characterized by comprising three processes: and (3) a vacuumizing stage, a vacuum analysis steam auxiliary stage and an organic solvent discharge stage.
(1) And (3) vacuumizing: the evacuation stage uses a water ring vacuum pump 6 to evacuate the granular carbon canister from three positions at different heights.
The vacuum pumping process of the granular carbon tank 1 needs to pump negative pressure of the carbon tank to be lower than 60KPa, the vacuum pumping time is 30min, and the granular carbon tank is interlocked with a water ring type vacuum pump by a pressure transmitter, so that the micro negative pressure state of the carbon tank is maintained. When the negative pressure is reached, the pump is stopped automatically, and when the negative pressure is higher than 60KPa, the water ring type vacuum pump 6 is started.
(2) Vacuum desorption steam auxiliary stage: steam with the pressure reduced to below 0.1MPa is introduced from the side surface of the bottom of the granular carbon tank 1, and a distribution pipe is arranged in the granular carbon tank, so that the steam upwards passes through the carbon layer from the bottom of the granular carbon tank and passes out from the side surface of the top of the granular carbon tank. The steam is introduced to make the positive pressure of the carbon tank counteracted by pumping negative pressure by the water ring vacuum pump 6, and the micro negative pressure state of the carbon tank is maintained.
(3) And (3) organic solvent discharging: when the solvent storage tank 4 is accumulated to a certain liquid level, when the liquid level reaches 350mm, the solvent pump 5 is automatically opened to discharge the solvent outwards, the solvent is pumped to the solvent storage tank appointed by the owner, and when the liquid level is lower than 50mm, the solvent pump 5 is stopped to discharge the liquid outwards.
Although the embodiments of the present utility model and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the utility model and the appended claims, and therefore the scope of the utility model is not limited to the embodiments and the disclosure of the drawings.
Claims (4)
1. An active carbon steam high-efficient desorption device which is characterized in that: including granule carbon tank (1), be provided with the tail gas air inlet on granule carbon tank (1) upper portion, be provided with clean gas vent in granule carbon tank (1) lower part one side, opposite side lower part is provided with the steam air inlet, and low temperature condenser (2) upper portion entry end is connected to the upper portion gas outlet end that corresponds, and water ring vacuum pump (6) are connected to the lower part exit end of this low temperature condenser (2), and circulating water tank (3) are connected to water ring vacuum pump (6) exit end.
2. The activated carbon vapor efficient desorption device according to claim 1, wherein: the circulating water tank (3) is divided into three outlets, one is an upper noncondensable gas outlet, the noncondensable gas outlet is connected with a tail gas inlet, the second is a water outlet of water separated from one side of the lower part and is connected with the water ring type vacuum pump (6), and the third is an organic solvent outlet end of the lower part and is connected with an inlet end of the solvent storage tank (4).
3. The activated carbon vapor efficient desorption device according to claim 2, wherein: the non-condensable gas outlet end at the upper part of the solvent storage tank and the non-condensable gas of the circulating water tank (3) are gathered and returned to the tail gas inlet, and the solvent outlet at one side of the lower part of the solvent storage tank (4) is connected with the solvent pump (5).
4. The activated carbon vapor efficient desorption device according to claim 3, wherein: the outlet of the solvent pump (5) is connected with a corresponding relevant solvent storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321321873.3U CN219964906U (en) | 2023-05-29 | 2023-05-29 | Active carbon steam high-efficient desorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321321873.3U CN219964906U (en) | 2023-05-29 | 2023-05-29 | Active carbon steam high-efficient desorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219964906U true CN219964906U (en) | 2023-11-07 |
Family
ID=88588352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321321873.3U Active CN219964906U (en) | 2023-05-29 | 2023-05-29 | Active carbon steam high-efficient desorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219964906U (en) |
-
2023
- 2023-05-29 CN CN202321321873.3U patent/CN219964906U/en active Active
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