CN216977582U - VOC exhaust-gas treatment recovery system - Google Patents
VOC exhaust-gas treatment recovery system Download PDFInfo
- Publication number
- CN216977582U CN216977582U CN202220404447.5U CN202220404447U CN216977582U CN 216977582 U CN216977582 U CN 216977582U CN 202220404447 U CN202220404447 U CN 202220404447U CN 216977582 U CN216977582 U CN 216977582U
- Authority
- CN
- China
- Prior art keywords
- waste gas
- outlet
- channel
- cooling
- inlet
- Prior art date
- 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.)
- Active
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 239000002912 waste gas Substances 0.000 claims abstract description 116
- 238000001816 cooling Methods 0.000 claims abstract description 72
- 238000009833 condensation Methods 0.000 claims abstract description 56
- 230000005494 condensation Effects 0.000 claims abstract description 56
- 230000008929 regeneration Effects 0.000 claims abstract description 45
- 238000011069 regeneration method Methods 0.000 claims abstract description 45
- 239000007789 gas Substances 0.000 claims abstract description 29
- 238000007791 dehumidification Methods 0.000 claims abstract description 26
- 238000000926 separation method Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000003795 desorption Methods 0.000 claims description 15
- 239000000112 cooling gas Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000012855 volatile organic compound Substances 0.000 description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Abstract
The application relates to a VOC waste gas treatment and recovery system, which comprises a waste gas discharge channel, a rotary dehumidifier, a condensation part and a waste gas discharge channel; the rotary dehumidifier comprises a dehumidification area, a regeneration area and a cooling area, wherein a gas outlet of the waste gas discharge channel is connected with an inlet of the dehumidification area, an outlet of the dehumidification area is connected with an inlet of the condensation part, and an outlet of the condensation part is connected with the waste gas discharge channel; the cooling device also comprises a cooling airflow channel, wherein an air inlet of the cooling airflow channel is also connected with an outlet of the condensation part, and an air outlet of the cooling airflow channel is connected with an inlet of the cooling area; the air inlet of the heating air return channel is connected with the outlet of the cooling area, and the air outlet of the heating air return channel is connected with the inlet of the regeneration area; the regeneration device also comprises a regeneration air flow channel, wherein the air inlet of the regeneration air flow channel is connected with the outlet of the regeneration area, and the air outlet of the regeneration air flow channel is connected with the exhaust channel; the application can improve the problems of higher energy consumption and environmental pollution of the existing VOC condensation separation equipment.
Description
Technical Field
The application relates to the field of waste gas treatment and recovery equipment, in particular to a VOC waste gas treatment and recovery system.
Background
VOC is a volatile organic compound which can cause harm to the environment, industries such as glue, coating, paint and the like are main enterprises generating VOC-containing waste gas, the VOC-containing waste gas generated by the enterprises is accompanied by more moisture, and the VOC-containing waste gas needs to be condensed and separated by special condensation separation equipment and then can be discharged into the air.
The existing condensation separation equipment comprises a rotary dehumidifier and a condensation system, waste gas passes through a dehumidification region of the rotary dehumidifier, moisture in the waste gas is remained in the dehumidification region, the remained dry waste gas passes through the condensation system, VOC is condensed in the condensation system and separated from the waste gas, and finally qualified waste gas is discharged from an exhaust port of the condensation part.
And condensation splitter adopts the three-zone rotary dehumidifier who contains dehumidification district, cooling space and regeneration area mostly, and the cooling space needs to set up extra structure and carries out the heat transfer to the cooling space when condensation splitter works, and the regeneration area then needs additionally to let in gas (like the fan is ventilated) and takes away the moisture in regeneration area, therefore present condensation splitter energy consumption is higher, is not very environmental protection.
SUMMERY OF THE UTILITY MODEL
In order to improve the problem that present VOC condensation splitter energy consumption is higher, not environmental protection, this application provides a VOC exhaust-gas treatment recovery system.
The application provides a VOC exhaust-gas treatment recovery system adopts following technical scheme:
a VOC waste gas treatment and recovery system comprises a waste gas discharge channel, a rotary dehumidifier, a condensation part and a waste gas discharge channel; the rotary dehumidifier comprises a dehumidification area, wherein an air outlet of the waste gas discharge channel is connected with an inlet of the dehumidification area, an outlet of the dehumidification area is connected with an inlet of the condensation part, and an outlet of the condensation part is connected with the waste gas discharge channel; the rotary dehumidifier also comprises a regeneration area, a cooling area and a cooling airflow channel, wherein the air inlet of the cooling airflow channel is also connected with the outlet of the condensation part, and the air outlet of the cooling airflow channel is connected with the inlet of the cooling area; the air inlet of the heating air backflow channel is connected with the outlet of the cooling area, and the air outlet of the heating air backflow channel is connected with the inlet of the regeneration area; the gas inlet of the regeneration gas flow channel is connected with the outlet of the regeneration area, and the gas outlet of the regeneration gas flow channel is connected with the waste gas discharge channel; and the regeneration airflow channel is provided with communicated condensation separation equipment.
By adopting the technical scheme, the waste gas containing VOC and moisture enters the channel through the waste gas discharge, then passes through the dehumidification region, most of moisture in the waste gas is remained in the dehumidification region, the dried waste gas enters the condensation part, most of VOC is condensed in the condensation part and separated from the waste gas, the low-temperature waste gas after VOC separation in the condensation part enters the cooling region through the cooling gas flow channel, at the moment, part of the waste gas in the cooling region does not leave the waste gas discharge channel but leaves the heating gas return channel, the heat in the cooling region is taken away by the low-temperature waste gas and flows to the regeneration region through the heating gas return channel, the moisture in the regeneration region is taken away by the waste gas with heat, then condensation separation treatment is carried out through condensation separation equipment in the regeneration gas flow channel, and finally the waste gas after condensation separation of most of the moisture and the VOC is discharged into the waste gas pipeline again for a new round of condensation separation; qualified waste gas is discharged from the waste gas discharge channel;
the heat transfer of cooling space in this application shape is realized through condensation part exhaust low calorie waste gas, and the thermal waste gas realization of ventilating through carrying the cooling space of regeneration area has saved the energy resource consumption of other equipment, and the system of this application becomes a circulation for waste gas is filtered repeatedly, and the filter quality promotes, the volume of remaining greatly reduced of VOC and moisture in the waste gas.
Optionally, the condensing section comprises a front surface cooling for performing the preliminary cooling.
Through adopting above-mentioned technical scheme, preceding surface cooling is used for carrying out primary cooling with waste gas.
Optionally, the condensing section further comprises a chiller for final cooling.
Through adopting above-mentioned technical scheme, the deep cooler is used for carrying out the deep cooling to the waste gas after the surface cooling before to for VOC condensation and with waste gas separation.
Optionally, the condensing part further comprises a heat regenerator, and the heat regenerator comprises a cold flow inlet I, a cold flow outlet I, a cold flow inlet II and a cold flow outlet II; the first cold flow inlet is independently communicated with the first cold flow outlet, and the second cold flow inlet is independently communicated with the second cold flow outlet; the export of dehumidification district and the access connection of preceding surface cooling, the export and the cold flow import of preceding surface cooling are connected, the first access connection with the chiller of cold flow export, the export and the second access connection of cold flow of chiller, the second access connection with cooling air flow passageway and waste gas discharge passageway intercommunication respectively of cold flow export.
By adopting the technical scheme, the waste gas dried by the rotary dehumidifier is subjected to front surface cooling, the waste gas subjected to the front surface cooling enters the heat regenerator, the waste gas subjected to the heat regenerator is further cooled by the deep cooler, the temperature is lower, and the lower-temperature waste gas is subjected to precooling on the waste gas at the front surface cooling outlet by the heat regenerator again; the heat regenerator plays a role in cold recovery and reduces energy loss.
Optionally, a cryogenic fan is arranged between the front surface cooler and the heat regenerator and is communicated with the front surface cooler and the heat regenerator.
Through adopting above-mentioned technical scheme, cryrogenic fan is used for taking out the waste gas that the front surface was cooled out in the regenerator more fast.
Optionally, a runner desorption heater communicated with the central heating return channel is arranged on the central heating return channel.
Through adopting above-mentioned technical scheme, runner desorption heater mainly used further heats the waste gas after absorbing the heat in cooling zone for the waste gas temperature reaches desorption temperature and carries out effective desorption to the runner.
Optionally, the condensation separation device is back surface cooling.
By adopting the technical scheme, more water in the waste gas coming out of the regeneration area can be condensed and separated by the back surface cooling.
Optionally, a rotary wheel desorption fan communicated with the rear surface cooler and the waste gas discharge channel is arranged between the rear surface cooler and the waste gas discharge channel.
Through adopting above-mentioned technical scheme, runner desorption fan is used for providing power for desorption waste gas.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the waste gas containing VOC and moisture enters the channel by the waste gas emission, then passes through the dehumidification area, most of moisture in the waste gas is remained in the dehumidification area, the dry waste gas enters the condensation part, most of VOC is condensed in the condensation part and separated from the waste gas, part of low-temperature waste gas with separated VOC in the condensation part enters the cooling area through the cooling air flow channel, at the moment, part of the waste gas does not leave the waste gas emission channel but leaves the heating return channel, the low-temperature waste gas takes away the heat of the cooling area and flows to the regeneration area through the heating return channel, the moisture in the regeneration area is taken away by the waste gas with heat, then condensation separation treatment is carried out through condensation separation equipment in the regeneration airflow channel, finally, most of the moisture and VOC condensed and separated waste gas is introduced into the waste gas again and discharged into the pipeline for a new cycle of condensation separation, and qualified waste gas is discharged through the waste gas discharge channel;
2. the heat transfer of cooling space in this application is realized through condensation part exhaust low calorie waste gas, and the thermal waste gas realization of ventilating through carrying the cooling space of regeneration area has saved the energy resource consumption of other equipment, and the system of this application becomes a circulation for waste gas is by the condensation separation repeatedly, makes condensation separation quality promote, the volume of remaining greatly reduced of VOC and moisture in the waste gas.
Drawings
Fig. 1 is a schematic overall structural diagram of an embodiment of the present application.
Description of reference numerals: 1. exhaust gas is discharged into the passage; 2. a rotary dehumidifier; 21. a dehumidification zone; 22. a regeneration zone; 23. a cooling zone; 3. a cooling gas flow channel; 4. a heating air return passage; 5. a regeneration gas flow path; 6. an exhaust gas discharge passage; 7. cooling the surface; 8. a rotating wheel desorption heater; 9. a cryogenic fan; 10. cooling the front surface; 11. a heat regenerator; 12. a deep cooling device; 13. a rotating wheel desorption fan; 14. and (4) switching.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses VOC exhaust-gas treatment recovery system, including waste gas row into passageway 1, rotary dehumidifier 2, condensation part, cooling air flow channel 3, heating installation backward flow passageway 4, regeneration air flow channel 5, waste gas exhaust passage 6 and condensation splitter, rotary dehumidifier 2 includes dehumidification district 21, regeneration zone 22 and cooling zone 23.
The gas outlet of the waste gas discharged into the channel 1 is connected with the inlet of the dehumidification area 21, the outlet of the dehumidification area 21 is connected with the inlet of the condensation part, the outlet of the condensation part is connected with the gas inlet of the cooling airflow channel 3, and the gas outlet of the cooling airflow channel 3 is connected with the inlet of the cooling area 23; the outlet of the cooling area 23 is connected with the air inlet of the heating air backflow channel 4, and the air outlet of the heating air backflow channel 4 is connected with the inlet of the regeneration area 22; the outlet of the regeneration zone 22 is connected with the air inlet of the regeneration airflow channel 5, the air outlet of the regeneration airflow channel 5 is connected with the exhaust gas discharged into the channel 1, the condensation separation device is a rear surface cooler 7, and the rear surface coolers 7 are arranged on the regeneration airflow channel 5 and are communicated with each other. And the outlet of the condensing portion is also connected to the exhaust gas discharge passage 6. The whole system forms a cycle of continuous condensation and separation, the waste gas is continuously discharged into the channel 1 from the waste gas, and the qualified waste gas is discharged from the waste gas discharge channel 6. And a rotary wheel desorption heater 8 communicated with the central heating backflow channel 4 is arranged on the central heating backflow channel for further heating the waste gas, and a rotary wheel desorption fan 13 communicated with the central heating backflow channel is arranged between the rear surface cooler 7 and the waste gas discharge channel 1 and used for enabling the waste gas to return to the waste gas discharge channel 1 more quickly.
The condensing part includes a front surface cooler 10, a regenerator 11, and a chiller 12. The regenerator 11 comprises a first cold flow inlet, a first cold flow outlet, a second cold flow inlet and a second cold flow outlet, wherein the first cold flow inlet is independently communicated with the first cold flow outlet, and the second cold flow inlet is independently communicated with the second cold flow outlet. The outlet of the dehumidification area 21 is connected with the inlet of the front surface cooler 10, the outlet of the front surface cooler 10 is connected with the first cold flow inlet, the first cold flow outlet is connected with the inlet of the chiller 12, the outlet of the chiller 12 is connected with the second cold flow inlet, and the second cold flow outlet is respectively communicated with the cooling air flow channel 3 and the waste gas discharge channel 6. A cryogenic fan 9 communicated with the front surface cooler 10 and the heat regenerator 11 is arranged between the front surface cooler 10 and the heat regenerator 11 and is used for rapidly conveying the waste gas of the front surface cooler 10 to the heat regenerator 11.
It is to be noted that it is preferable that,
in the application, switches 14 for controlling opening and closing are arranged on an inlet of an exhaust channel, an inlet and an outlet of a rotating wheel desorption fan 13, an outlet of a rear surface cooler 7, an inlet and an outlet of a dehumidification region 21, an inlet and an outlet of a cooling region 23, an inlet and an outlet of a regeneration region 22, an inlet and an outlet of a rotating wheel desorption heater 8, an outlet of a front surface cooler 10, an inlet and an outlet of a cryogenic fan 9, an inlet and an outlet of a regenerator 11, an inlet and an outlet of a cryogenic cooler 12 and an outlet of a waste gas exhaust channel 6;
the preceding surface cooling 10 of this application is the surface cooler with back surface cooling 7, and the temperature of surface cooler can fall waste gas to more than 0 degree centigrade.
The implementation principle of the VOC exhaust-gas treatment recovery system of the embodiment of the application is as follows:
the waste gas containing VOC and moisture enters the channel 1 through the waste gas, then passes through the dehumidification area 21, most of moisture in the waste gas is left in the dehumidification area 21, the waste gas dried by the rotary dehumidifier 2 firstly passes through the front surface cooler 10, the waste gas passing through the front surface cooler 10 enters the heat regenerator 11, the waste gas passing through the heat regenerator 11 for the first time is further cooled through the deep cooler 12, the temperature is lower, the VOC is condensed and separated from the waste gas, the lower-temperature waste gas passes through the heat regenerator 11 again, the temperature in the heat regenerator 11 is reduced, the heat regenerator 11 plays a transition role between the front surface cooler 10 and the deep cooler 12, and the temperature is reduced more smoothly; part of low-temperature waste gas after VOC separation in the condensation part enters a cooling area 23 through a cooling air flow channel 3, part of waste gas in the cooling area 23 does not flow through a waste gas discharge channel 6 but flows through a heating air backflow channel 4, the low-temperature waste gas takes away heat of the cooling area 23 and flows to a regeneration area 22 through the heating air backflow channel 4, moisture in the regeneration area 22 is taken away by waste gas with heat, so that water adsorbed on waste gas on a rotary dehumidifier 2 is taken away, then the waste gas after water absorption is subjected to condensation separation treatment through condensation separation equipment in a regeneration air flow channel 5, finally, most of the moisture and VOC separated by condensation is introduced into the waste gas again and discharged into a pipeline for a new round of condensation separation, and qualified waste gas is discharged through the waste gas discharge channel 6.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A VOC waste gas treatment and recovery system comprises a waste gas discharge channel (1), a rotary dehumidifier (2), a condensation part and a waste gas discharge channel (6);
the rotary dehumidifier (2) comprises a dehumidification area (21), wherein a gas outlet of the waste gas discharged into the channel (1) is connected with an inlet of the dehumidification area (21), an outlet of the dehumidification area (21) is connected with an inlet of a condensation part, and an outlet of the condensation part is connected with the waste gas discharge channel (6);
the rotary dehumidifier (2) also comprises a regeneration area (22) and a cooling area (23), and is characterized in that: the condenser also comprises a cooling air flow channel (3), wherein the air inlet of the cooling air flow channel (3) is also connected with the outlet of the condensing part, and the air outlet of the cooling air flow channel (3) is connected with the inlet of the cooling area (23);
the air conditioner also comprises a warm air return channel (4), wherein an air inlet of the warm air return channel (4) is connected with an outlet of the cooling area (23), and an air outlet of the warm air return channel (4) is connected with an inlet of the regeneration area (22);
the device also comprises a regeneration gas flow channel (5), wherein the gas inlet of the regeneration gas flow channel (5) is connected with the outlet of the regeneration area (22), and the gas outlet of the regeneration gas flow channel (5) is connected with the waste gas discharge channel (1);
and the regeneration gas flow channel (5) is provided with communicated condensation separation equipment.
2. The VOC exhaust treatment recovery system of claim 1, wherein: the condensing part comprises a front surface cooling (10) for performing preliminary cooling.
3. A VOC exhaust treatment recovery system according to claim 2, wherein: the condensation section also comprises a chiller (12) for final cooling.
4. A VOC exhaust treatment recovery system according to claim 3, wherein: the condensing part further comprises a regenerator (11), and the regenerator (11) comprises a cold flow inlet I, a cold flow outlet I, a cold flow inlet II and a cold flow outlet II;
the first cold flow inlet is independently communicated with the first cold flow outlet, and the second cold flow inlet is independently communicated with the second cold flow outlet;
the export of dehumidification district (21) and the access connection of preceding surface cooling (10), the export and the cold flow import of preceding surface cooling (10) are connected, the first access connection with deep freezer (12) of cold flow export, the export and the cold flow import of deep freezer (12) are connected, cold flow export two communicates with cooling gas flow channel (3) and waste gas discharge passageway (6) respectively.
5. A VOC waste gas treatment recovery system as claimed in claim 4, wherein: and a cryogenic fan (9) communicated with the front surface cooler (10) and the heat regenerator (11) is arranged between the front surface cooler and the heat regenerator.
6. The VOC exhaust treatment recovery system of claim 1, wherein: and a runner desorption heater (8) communicated with the central heating return channel (4) is arranged on the central heating return channel.
7. The VOC exhaust treatment recovery system of claim 1, wherein: the condensation separation equipment is back surface cooling (7).
8. The VOC exhaust treatment recovery system of claim 7, wherein: and a rotary wheel desorption fan (13) communicated with the rear surface cooler (7) and the waste gas discharge channel (1) is arranged between the rear surface cooler and the waste gas discharge channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220404447.5U CN216977582U (en) | 2022-02-26 | 2022-02-26 | VOC exhaust-gas treatment recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220404447.5U CN216977582U (en) | 2022-02-26 | 2022-02-26 | VOC exhaust-gas treatment recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216977582U true CN216977582U (en) | 2022-07-15 |
Family
ID=82355044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220404447.5U Active CN216977582U (en) | 2022-02-26 | 2022-02-26 | VOC exhaust-gas treatment recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216977582U (en) |
-
2022
- 2022-02-26 CN CN202220404447.5U patent/CN216977582U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106196346B (en) | Energy-saving low-dew-point rotary dehumidifier | |
| JP6886214B1 (en) | Various energy complementary heat pump drying equipment suitable for low temperature conditions | |
| CN105135739A (en) | Multifunctional heat pump type evaporative condensing air-conditioning unit | |
| CN108826506A (en) | A kind of adsorption and dehumidification regenerating energy-saving device | |
| CN210070102U (en) | Ground pipe laying water source dehumidification humidification fresh air unit | |
| CN109618686B (en) | Solar heat pump solution dehumidifying, composite drying and low-temperature ventilation grain storage system | |
| CN109464885B (en) | Two-stage heat-returning solar-driven rotating wheel drying system and operation method thereof | |
| CN202581587U (en) | Low-humidity high-temperature regenerating energy-saving dehumidification system | |
| CN202149571U (en) | Fresh air handling unit | |
| CN204513624U (en) | A kind of heat pump driven dehumidification solution temperature controls and domestic hot-water's device for making | |
| CN107621129B (en) | Drying device with external hot start and deep dehumidification | |
| CN206330246U (en) | The Hybrid Air Condition Using Desiccant regenerated based on PVT and GHP | |
| CN205980700U (en) | Responsibility is dodged all to heat of high -efficient heat recovery | |
| CN210426005U (en) | Dry regulation and control device of combined type granary | |
| CN105805869B (en) | The back-heating type solid desiccant dehumidification air-conditioning system and operation method of Driven by Solar Energy | |
| CN216977582U (en) | VOC exhaust-gas treatment recovery system | |
| CN202119021U (en) | Multistage heat-recovery compound-dehumidifying new air processor | |
| CN114791134B (en) | Multidirectional energy-saving double-rotating-wheel dehumidifier capable of recovering sensible heat and dehumidification method | |
| CN102661660A (en) | Refrigerating system waste heat recovery and solar-assisted heating and drying device | |
| CN108518886B (en) | White smoke-eliminating high-efficiency smoke hot water type lithium bromide absorption type cold and hot water unit | |
| CN106871280B (en) | A kind of heat pump driven two-stage solution dehumidifying air-conditioning system | |
| CN202648010U (en) | Combined type heat pump low temperature regenerative rotary wheel dehumidification total heat recovery fresh air unit | |
| CN104613560A (en) | Low-temperature heat source and electricity combined drive two-stage solution dehumidification system | |
| CN109059146A (en) | A kind of purification air cycle heat pump system using absorption type runner | |
| CN213687062U (en) | Full-air conditioning unit device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 2088 Keji Avenue, Qingshanhu street, Lin'an District, Hangzhou, Zhejiang 311300 Patentee after: Hangzhou Jierui Intelligent Equipment Co.,Ltd. Address before: 2088 Keji Avenue, Qingshanhu street, Lin'an District, Hangzhou, Zhejiang 311300 Patentee before: HANGZHOU DRY AIR TREATMENT EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |