CN211987864U - VOC purification treatment system and exhaust purification treatment system - Google Patents
VOC purification treatment system and exhaust purification treatment system Download PDFInfo
- Publication number
- CN211987864U CN211987864U CN201922418902.8U CN201922418902U CN211987864U CN 211987864 U CN211987864 U CN 211987864U CN 201922418902 U CN201922418902 U CN 201922418902U CN 211987864 U CN211987864 U CN 211987864U
- Authority
- CN
- China
- Prior art keywords
- treatment system
- purification treatment
- branch pipe
- gas
- gas 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
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a VOC purification treatment system and a waste gas purification treatment system, wherein the VOC purification treatment system comprises a zeolite rotating wheel, a catalytic combustor and a heat regenerative device; the zeolite rotating wheel is provided with a waste gas inlet, a clean gas outlet, a sweeping gas inlet and a concentrated gas outlet; the catalytic combustor is provided with a concentrated gas inlet and a high-temperature gas outlet; the heat recovery device comprises a heat recovery pipe and a pipeline heater arranged on the heat recovery pipe; the waste gas inlet is connected with the upstream waste gas supply end through a first branch pipe, the clean gas outlet is connected with the downstream waste gas reprocessing end through a second branch pipe, the concentrated gas outlet is connected with the concentrated gas inlet through a third branch pipe, and the purging gas inlet is connected with the purging gas inlet through a heat return pipe. The invention can solve the defect of low energy utilization rate in the prior art and has the advantages of compact structure and high stability.
Description
Technical Field
The utility model relates to an organic waste gas's purification treatment technical field, concretely relates to VOC purification treatment system and exhaust-gas purification treatment system that energy utilization is high.
Background
The organic waste gas refers to a general term of various pollutant-containing gases discharged into air in the process of fuel combustion or production in enterprises. Volatile Organic Compounds (VOC) are Organic Compounds that have a saturated vapor pressure of greater than about 70Pa at ambient temperature and a boiling point of less than 260 ℃ at ambient pressure. The volatile substances are main pollutants in exhaust gas discharged by petrochemical industry, pharmaceutical industry, printing industry, coating decoration industry, surface anticorrosion industry and other industries.
In addition, gases such as ammonia gas and hydrogen sulfide are also present in the organic waste gas, and the gases are discharged after a purification treatment is required.
At present, the international combustion modes for treating organic waste gas include direct combustion and catalytic combustion. The direct combustion furnace is suitable for organic waste gas with medium and high concentration, the working temperature is 600-1100 ℃, the manufacturing cost and the operation cost of the combustion furnace are high, the volume is large, and the safety is not high enough. The catalytic combustion needs auxiliary temperature rise to reach the reaction temperature of the catalyst carrier of 200 ℃ and 400 ℃, and the catalyst is applicable to the treatment of organic waste gas with large air volume due to higher price and high cost.
In the prior art, especially in the industries of package printing, coating, electronic spraying and the like, the zeolite rotating wheel is widely used due to high VOC treatment efficiency, long service life, large treatment air volume, small occupied area and high adsorption and desorption efficiency. Nowadays, the enterprise that produces VOC produces the type difference of waste gas great because of differences such as production technology, operating mode, product, to handling VOC concentration and being less than 100mg/m 3's waste gas, zeolite runner is concentrated 5 ~ 20 times, and the concentrated gas still need consume certain energy and guarantee the abundant reaction of waste gas to get into heat accumulation formula catalytic combustion bed system.
For example, chinese patent application 201620440811.8 discloses a zeolite rotating wheel organic waste gas purification device, which comprises a filter, a zeolite rotating wheel, a heater, a catalytic combustion device, a heat exchanger, a system fan, a desorption fan, a heat exchanger, and a pipeline; the zeolite rotating wheel is provided with an adsorption area, a desorption area and a cooling area; the filter, the adsorption area and the system fan are sequentially connected through a pipeline; the filter, the cooling zone, the heat exchanger, the heater, the desorption zone, the desorption fan, the heat exchanger, the catalytic combustion device, the heat exchanger, the adsorption zone and the system fan are sequentially connected through pipelines; the filter is a particulate filter.
For another example, chinese patent 201820288784.6 discloses a zeolite rotating wheel adsorption concentration purification device, which comprises a filtering device, a zeolite rotating wheel, a heating device, a catalytic combustion device and a control system; the zeolite rotating wheel is provided with an adsorption region, a cooling region and a regeneration region, the filter device is connected with an adsorption fan through a first air inlet pipe, the adsorption fan is connected with the adsorption region through a second air inlet pipe, and the adsorption region is connected with an exhaust chimney; the second air inlet pipe is provided with an air inlet branch pipe, the air inlet branch pipe is connected with a cooling area, the cooling area is connected with a heating device through a first air outlet pipe, and the heating device is connected with the regeneration area; the regeneration area is connected with a desorption fan, and the desorption fan is connected with the catalytic combustion device through a second air outlet pipe; and an air outlet branch pipe is arranged on the second air outlet pipe and communicated with the first air inlet pipe.
SUMMERY OF THE UTILITY MODEL
To prior art's defect, the utility model provides a VOC purification treatment system and exhaust purification treatment system to solve among the prior art defect that energy utilization is low.
The utility model has the first purpose of providing a VOC purification treatment system, which comprises a zeolite rotating wheel, a catalytic burner and a heat regenerative device; the zeolite rotating wheel is provided with a waste gas inlet, a clean gas outlet, a sweeping gas inlet and a concentrated gas outlet; the catalytic combustor is provided with a concentrated gas inlet and a high-temperature gas outlet; the heat recovery device comprises a heat recovery pipe and a pipeline heater arranged on the heat recovery pipe; the waste gas inlet is connected with the upstream waste gas supply end through a first branch pipe, the clean gas outlet is connected with the downstream waste gas reprocessing end through a second branch pipe, the concentrated gas outlet is connected with the concentrated gas inlet through a third branch pipe, and the purging gas inlet is connected with the purging gas inlet through a heat return pipe.
In the technical scheme of the invention, the zeolite rotating wheel is adopted to concentrate the VOC-containing waste gas, the VOC-containing waste gas is fully adsorbed in the adsorption area of the zeolite rotating wheel, the purified waste gas (no VOC or a small amount of VOC) is discharged through the cooling area of the zeolite rotating wheel, the VOC part adsorbed in the zeolite rotating wheel is desorbed through hot air treatment in the regeneration area of the zeolite rotating wheel, and the concentrated gas is formed.
Specifically, the concentrated gas is connected with a concentrated gas inlet of a catalytic combustor through a third branch pipe, wherein the catalytic combustor can be selected as a CO furnace, and the concentrated gas rich in VOC is oxidized in the CO furnace to form CO which can be directly discharged2With water vapor and then vented.
Furthermore, a large amount of heat is generated in the catalytic combustor, high-temperature gas in the catalytic combustor flows back to the zeolite rotating wheel through the heat return pipe and is used as a heat source of the zeolite rotating wheel, the utilization rate of energy can be improved, and the energy is saved.
And furthermore, a pipeline heater is arranged on the heat return pipe to keep the energy required by the zeolite rotating wheel more stable, improve the comprehensive efficiency of the whole system and facilitate the smooth and stable operation of the purification treatment process.
According to another embodiment of the present invention, a bypass branch pipe is disposed between the regenerative pipe and the second branch pipe, and when the regenerative pipe provides excess heat, a portion of low-temperature air is introduced into the regenerative pipe to lower the air temperature in the regenerative pipe.
According to another embodiment of the invention, the regenerative tube and the second branch tube are provided with a heat exchanger to split part of the heat for use.
According to another embodiment of the invention, the waste gas introducing fan is arranged on the first branch pipe, the clean gas discharging fan is arranged on the second branch pipe, the concentrated gas leading-out fan is arranged on the third branch pipe, and the waste gas introducing fan, the waste gas introducing fan and the concentrated gas leading-out fan can provide stable flowing gas, so that the stability of the operation of the whole system is facilitated.
According to another embodiment of the present invention, a filter, such as a dust filter, is disposed on the first branch pipe to reduce the content of suspended substances in the exhaust gas, prevent zeolite from being blocked by dust, etc., and prolong the service life.
The second objective of the present invention is to provide an exhaust gas purification treatment system, which comprises a spraying device and the VOC purification treatment system; the spraying device comprises a spraying tower and a spray head arranged in the spraying tower; wherein, the second branch pipe in the VOC purification treatment system is connected to the air inlet of the spray tower, and the air inlet of the spray tower is positioned below the spray head.
In the technical scheme of the invention, other gases in the waste gas such as ammonia gas and hydrogen sulfide are treated by the spraying device.
According to another specific embodiment of the invention, the device further comprises a dosing device, wherein the dosing device comprises a dosing tank and a dosing pump, and the dosing tank is connected to the spray head through a fourth branch pipe.
The chemical in the chemical adding tank is, for example, an alkaline chemical, specifically, sodium hydroxide, so as to remove hydrogen sulfide and ammonia in the exhaust gas, and the treated gas can be directly discharged.
According to another specific embodiment of the invention, the bottom of the spray tower is provided with a water storage tank and a spray pump, the dosing tank is connected to the water storage tank through a fourth branch pipe, the spray head is connected to the water storage tank through a fifth branch pipe, and the spray pump is arranged on the fifth branch pipe.
The utility model discloses possess following beneficial effect:
the VOC purification treatment system reasonably utilizes the heat generated by the catalytic combustor, provides the heat required by the zeolite rotating wheel, improves the utilization rate of energy, and has the advantages of low energy consumption and low cost;
in addition, the invention is also provided with heat generation elements such as a pipeline heater, a heat exchanger and the like, can timely regulate and control to form stable heat source supply, and is favorable for the stability of the whole system.
In addition, the filter is arranged in the invention, so that the load of the zeolite rotating wheel can be effectively reduced, and the service life of the zeolite rotating wheel can be prolonged.
The waste gas purification treatment system can simultaneously treat VOC, ammonia gas, hydrogen sulfide and the like, and has the advantages of strong adaptability and high universality.
In addition, the spraying device and the dosing device adopt a unique pipeline connecting structure, can effectively utilize the medicament and the liquid for spraying, reduces the load of subsequent treatment, and has the advantages of compact structure and low cost.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a VOC purification treatment system of the present invention;
fig. 2 is a schematic diagram of an exhaust gas purification treatment system of the present invention.
Detailed Description
Example 1
A VOC purification treatment system is shown in FIG. 1, comprising a filter 10, a zeolite wheel 20, a catalytic burner 30(CO burner), and a heat regenerator 40.
The zeolite rotating wheel 20 is provided with an exhaust gas inlet 21, a clean gas outlet 22, a purging gas inlet 23 and a concentrated gas outlet 24; the catalytic combustor 30 is provided with a concentrated gas inlet 31 and a high-temperature gas outlet 32; the heat recovery device 40 includes a heat recovery pipe 41, a pipe heater 42 provided on the heat recovery pipe 41, and a heat exchanger 43;
the waste gas inlet 21 is connected with the outlet of the filter 10 through a first branch pipe 25, the inlet of the filter 10 is connected with the upstream waste gas supply end, the clean gas outlet 22 is connected with the downstream waste gas reprocessing end through a second branch pipe 26, the concentrated gas outlet 24 is connected with the concentrated gas inlet 31 through a third branch pipe 27, and the purge gas inlet 23 is connected with the purge gas inlet 23 through a return pipe 41.
A bypass branch duct 44 is provided between the return duct 41 and the second branch duct 26, and low-temperature air is introduced into the return duct to lower the air temperature in the return duct when the return duct 41 supplies excess heat.
The heat exchanger 43 is disposed between the regenerative tube 41 and the second branch tube 26 to split a part of the heat, specifically, the second branch tube 26 is provided with a shunt tube 26a, and the heat exchanger 43 is disposed between the regenerative tube 41 and the shunt tube 26 a.
Correspondingly, a plurality of fans 28 are provided to provide a stable flow rate of gas, for example, a waste gas introducing fan 28a is provided on the first branch pipe 25, a clean gas exhausting fan 28b is provided on the second branch pipe 26, and a concentrated gas exhausting fan 28c is provided on the third branch pipe 27, and the waste gas introducing fan 28a, the clean gas exhausting fan 28b, and the concentrated gas exhausting fan 28c can respectively provide a stable flow of gas, thereby facilitating the stability of the operation of the whole system.
In this embodiment, the VOC-containing exhaust gas is concentrated by the zeolite turning wheel 20, the VOC-containing exhaust gas is sufficiently adsorbed in the adsorption region of the zeolite turning wheel 20, and the purified exhaust gas (no longer containing VOC or containing a small amount of VOC) is discharged through the cooling region of the zeolite turning wheel 20, and the VOC adsorbed in the zeolite turning wheel 20 is desorbed by hot air treatment in the regeneration region of the zeolite turning wheel 20 to form a concentrated gas.
Specifically, the concentrated gas is connected to the concentrated gas inlet 31 of the catalytic burner 30 through the third branch pipe 27, and the VOC-rich concentrated gas is oxidized in the catalytic burner 30 to form CO which can be directly discharged2With water vapor and then vented.
More specifically, a large amount of heat is generated in the catalytic combustor 30, and the high-temperature gas in the catalytic combustor 30 flows back to the zeolite rotating wheel 20 through the heat return pipe 41 and is used as a heat source of the zeolite rotating wheel 20, so that the utilization rate of energy can be improved, and the energy can be saved.
The heat recovery pipe 41 is provided with the pipe heater 42 to keep the energy required by the zeolite rotating wheel 20 more stable, improve the comprehensive efficiency of the whole system, and facilitate the smooth and stable operation of the purification treatment process.
In this embodiment, the straight branch pipe 11 may be connected in parallel outside the filter 10 to directly treat the VOC from the exhaust gas meeting the dust standard, thereby reducing the load caused by the presence of the filter 10.
In this embodiment, a valve, such as an electrically actuated opening valve, is provided on each branch pipe to regulate the flow of gas within each branch pipe.
Example 2
An exhaust gas purification treatment system, as shown in fig. 2, for treating exhaust gas containing VOC, ammonia gas, and hydrogen sulfide, includes a spray device 50, the VOC purification treatment system of embodiment 1, and a chemical feeding device 60.
The spraying device 50 comprises a spraying tower 51 and a spray head 52 arranged in the spraying tower 51; wherein the second branch pipe 26 in the VOC purification treatment system is connected to the air inlet 511 of the spray tower 51, and the air inlet 511 of the spray tower 51 is located below the spray head 52.
The dosing device 60 comprises a dosing tank 61 and a dosing pump 62, the dosing tank 61 is connected to the spraying device 50 (specifically for supplying water to the spray head 52) through a fourth branch pipe 63, and the medicament in the dosing tank 61 is, for example, an alkaline medicament, specifically, sodium hydroxide.
Further, a water storage tank 512 and a spraying pump 513 are arranged at the bottom of the spraying tower 51, the dosing tank 61 is connected to the water storage tank 512 through a fourth branch pipe 63, the spray head 52 is connected to the water storage tank 512 through a fifth branch pipe 514, the spraying pump 513 is arranged on the fifth branch pipe 514, and the water feeding pipe 515 is respectively connected with the water storage tank 512 and the dosing tank 61 to feed fresh water to the water storage tank 512 and the dosing tank 61.
In this embodiment, the gas treated by the spraying device 50 can be directly discharged.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention are intended to be covered by the scope of the invention.
Claims (9)
1. A VOC purification treatment system, comprising:
a zeolite wheel;
a catalytic combustor; and
a heat regenerative device;
the zeolite rotating wheel is provided with a waste gas inlet, a clean gas outlet, a sweeping gas inlet and a concentrated gas outlet;
the catalytic combustor is provided with a concentrated gas inlet and a high-temperature gas outlet;
the heat recovery device comprises a heat recovery pipe and a pipeline heater arranged on the heat recovery pipe;
the waste gas inlet is connected with an upstream waste gas supply end through a first branch pipe, the clean gas outlet is connected with a downstream waste gas reprocessing end through a second branch pipe, the concentrated gas outlet is connected with the concentrated gas inlet through a third branch pipe, and the purging gas inlet is connected with the purging gas inlet through a regenerative pipe.
2. A VOC purification treatment system according to claim 1, wherein a bypass branch is provided between the regenerator tube and the second branch.
3. A VOC purification treatment system according to claim 1, wherein the regenerator tube and the second leg are provided with a heat exchanger.
4. A VOC purification treatment system according to claim 1, wherein the first branch pipe is provided with a waste gas introducing fan, the second branch pipe is provided with a clean gas exhausting fan, and the third branch pipe is provided with a concentrated gas exhausting fan.
5. A VOC purification treatment system according to claim 1, wherein a filter is provided in the first branch pipe.
6. An exhaust gas purification treatment system, comprising:
the spraying device comprises a spraying tower and a spray head arranged in the spraying tower;
a VOC purification treatment system as claimed in any one of claims 1-5;
wherein, the second branch pipe in the VOC purification treatment system is connected to the air inlet of the spray tower, and the air inlet of the spray tower is positioned below the spray head.
7. The exhaust gas purification treatment system according to claim 6, further comprising a dosing device, wherein the dosing device comprises a dosing tank and a dosing pump, and the dosing tank is connected to the spray head through a fourth branch pipe.
8. The exhaust gas purification treatment system according to claim 7, wherein a water storage tank and a spray pump are arranged at the bottom of the spray tower, the chemical feeding tank is connected to the water storage tank through a fourth branch pipe, the spray head is connected to the water storage tank through a fifth branch pipe, and the spray pump is arranged on the fifth branch pipe.
9. The exhaust gas purification treatment system according to claim 7, wherein the chemical in the chemical feed tank is an alkaline chemical or a deodorizing solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922418902.8U CN211987864U (en) | 2019-12-26 | 2019-12-26 | VOC purification treatment system and exhaust purification treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922418902.8U CN211987864U (en) | 2019-12-26 | 2019-12-26 | VOC purification treatment system and exhaust purification treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211987864U true CN211987864U (en) | 2020-11-24 |
Family
ID=73427691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922418902.8U Active CN211987864U (en) | 2019-12-26 | 2019-12-26 | VOC purification treatment system and exhaust purification treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211987864U (en) |
-
2019
- 2019-12-26 CN CN201922418902.8U patent/CN211987864U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208824192U (en) | A kind of VOCs exhaust-gas efficient adsorption/desorption catalyzing burning processing system | |
| CN209123588U (en) | A kind of new and effective lacquer spraying waste gas integrated treating device | |
| CN210544196U (en) | Adsorption, desorption and catalytic oxidation integrated device | |
| CN207025012U (en) | Industrial VOC Multi-grade exhaust gas concentration device | |
| CN201295583Y (en) | Adsorption and catalysis integration device | |
| CN214914699U (en) | Zeolite fixed bed catalytic combustion clean system for paint spraying field | |
| CN207024949U (en) | The industrial dense catalytic thermal burning processing system of VOC waste gas | |
| CN110479038A (en) | A kind of exhaust treatment system and processing method suitable for coal chemical industry | |
| CN207137630U (en) | A kind of organic waste gas catalytic combustion purifier | |
| CN211987864U (en) | VOC purification treatment system and exhaust purification treatment system | |
| CN218392982U (en) | Reusable rubber flue gas treatment system | |
| CN106345294A (en) | Catalytic oxidation device for organic waste gas | |
| CN212974632U (en) | Energy-saving processing apparatus is used in organic waste gas purification | |
| CN206176412U (en) | Energy -saving organic waste gas waste heat utilization equipment | |
| CN207025011U (en) | Industrial VOC waste gas concentrates energy-efficient treatment system | |
| CN110479086A (en) | For cooperateing with the device and method for eliminating NOx and VOCs in exhaust gas | |
| CN210874704U (en) | Waste gas treatment system suitable for coal chemical industry | |
| CN107899389A (en) | The energy saving hybrid processing system of Industrial Stoves VOC exhaust gas | |
| CN113731101B (en) | Garbage incineration flue gas treatment system and flue gas treatment method based on activated carbon separation and analysis | |
| CN213132566U (en) | Molecular sieve runner system for treating waste gas of gravure printing | |
| CN208222539U (en) | A kind of containing benezene waste gas cleaning system | |
| CN111467926A (en) | Energy-saving processing device applied to organic waste gas industry | |
| CN219209349U (en) | Runner adsorption adds catalytic combustion waste gas purification all-in-one device | |
| CN216418906U (en) | Organic microelement feed additive's flavor system that removes | |
| CN214862332U (en) | Organic waste gas treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |