CN210278703U - VOC waste gas comprehensive treatment device - Google Patents
VOC waste gas comprehensive treatment device Download PDFInfo
- Publication number
- CN210278703U CN210278703U CN201921197822.8U CN201921197822U CN210278703U CN 210278703 U CN210278703 U CN 210278703U CN 201921197822 U CN201921197822 U CN 201921197822U CN 210278703 U CN210278703 U CN 210278703U
- Authority
- CN
- China
- Prior art keywords
- adsorber
- voc
- adsorption
- waste gas
- gas
- 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
Abstract
The utility model relates to a waste gas comprehensive treatment device belongs to the environmental protection equipment field. The utility model provides a VOC waste gas integrated processing device, this system sets up the adsorption system of work in turn, and partial adsorption system adsorbs, and partial adsorption system desorbs. This device adopts the natural gas boiler to burn and handles waste gas to through synthesizing integrated design, boiler burning tail gas heat returns adsorption system, makes adsorption system desorption. The utility model discloses a many adsorption system dynamic adsorption-desorption work flow in turn, parallelly can ensure long-time work in, solve adsorption system's desorption problem, realize each adsorption system's desorption under the precursor that does not influence the normal work of system. This device combines together through each adsorption system's switching, with situations such as exhaust gas concentration, air current size under the different operating mode of mill, and the integrated design for different adsorption efficiency of adsorption system adsorption phase combine together with exhaust gas concentration fluctuation, ensure higher adsorption capacity and adsorption efficiency.
Description
Technical Field
The utility model relates to an exhaust-gas treatment especially relates to a VOC waste gas integrated processing device.
Background
Volatile Organic compounds, called voc (volatile Organic compounds) for short, are generally used as solvents in industrial production, and are emitted to the atmosphere through various routes after use, thus causing environmental pollution. The volatile organic solvent is used most widely in the chemical industry field, and the VOC gas continuously released by the volatile organic solvent widely contains various biotoxic aliphatic compounds, halogenated hydrocarbons, aromatic compounds and the like, so that the volatile organic solvent brings serious threats to the life health of residents. In the VOC gas with high biological toxicity, the components such as benzene, halogenated hydrocarbon and the like cause serious consequences such as carcinogenesis, teratogenesis and the like on a plurality of organs, nervous systems, skeleton development and the like of a human body, so the emission of the VOC must be controlled and the VOC is responsible for the natural environment and the life health.
At present, the VOC gas treatment mainly adopts the processes of biological treatment, catalysis, adsorption, pressure swing adsorption separation and purification, oxidation, liquid absorption, condensation recovery and the like. However, the processes have different advantages and disadvantages, and the use conditions are harsh, so that the use effect of large bulk drug production factories related to different working conditions is irrational.
Biological treatment method: firstly, the VOC gas is subjected to water adsorption, dissolved and adsorbed in a water system, and then gradually diffused into a biological membrane so as to be absorbed by microorganisms attached to the biological membrane. The organic waste gas absorbed by the microorganisms is degraded in the physiological metabolism process of the microorganisms and is finally converted into compound substances which are not harmful to the environment. However, such methods have high requirements on the types of VOC gases, and it is difficult to effectively adsorb some of the fat-soluble VOC gases. Even if the adsorption limit for the highly water-soluble VOC gas is low, the biological treatment speed is slow, and the VOC gas treatment efficiency of the whole device is low. It is difficult to use in an industrial comprehensive plant.
The catalytic method comprises the following steps: under the action of the catalytic bed layer, the chemical degradation speed of the organic waste gas is accelerated, but if the organic waste gas leaves the catalyst auxiliary, the organic waste gas cannot play a role. Most of the catalysts available at present are noble metals or noble metal salts. Although the catalytic effects of the two catalysts are good and the technology is mature, the price is high, so the treatment cost is high, and the catalyst is not suitable for enterprises with low production added value
An adsorption method: the method is mainly suitable for low-concentration and high-flux organic waste gas. However, the method has certain defects that the required equipment is large in size and the process flow is complex; if there are a lot of impurities in the exhaust gas, it is easy to cause worker poisoning. The organic waste gas is treated by adopting an adsorption method at present, and activated carbon is mostly used, mainly because the pore structure of the activated carbon is better and the adsorptivity is stronger. But still has the problems that the adsorption material is easy to saturate, the adsorption efficiency is low after saturation, and the cost is higher.
Pressure swing adsorption separation and purification technology: the pressure swing adsorption separation and purification technology utilizes the characteristic that gas components can be adsorbed on a solid material, and in the organic waste gas and separation and purification device, the pressure of gas can be changed to a certain extent, and the organic waste gas is treated by the pressure change. The method realizes the purification of the organic waste gas through a physical method, mostly uses zeolite molecular sieves as adsorbing materials, and has the advantages of adsorption selectivity and adsorption quantity. The zeolite molecular sieve effectively adsorbs VOC components in the organic waste gas by regulating and controlling parameters such as temperature, pressure and the like. After the molecular sieve adsorbs the organic waste gas, the organic waste gas is regenerated through a certain procedure and put into use again, and the organic waste gas is recycled for a plurality of times until the organic waste gas is effectively purified. However, the zeolite molecular sieve of the technology is not mature, the molecular sieve has limited service life and higher cost, and the industrialization popularization is not seen at present.
Liquid absorption method: harmful molecules in the VOC gas are transferred into the absorbent through the contact of the absorbent and the organic waste gas, thereby realizing the purpose of separating the VOC. After the organic waste gas is transferred into the absorbent, VOC in the absorbent is removed by adopting an analytic method, and then the absorbent is recovered, so that the absorbent can be reused and utilized. However, this method is highly selective for VOC gas species and is not effective in removing fat-soluble VOC compounds.
Condensation recovery method: under different temperatures, the saturation of VOC is different, and the condensation recovery method works by utilizing the characteristic of VOC, and the VOC in a gas state is converted into a liquid state for separation by changing the internal pressure of the system in a condensation mode. The disadvantage is that the operating energy consumption is high. The treatment method is mainly suitable for treating the organic waste gas with high concentration and relatively low temperature, and has no universality.
The combustion method comprises the following steps: the VOC and oxygen are subjected to combustion reaction in a direct oxidation or catalytic oxidation mode, and the VOC is thoroughly converted into harmless products such as carbon dioxide, water and the like. Because VOC waste gas production devices such as reation kettle continue to produce waste gas in the use, need the boiler persistence to keep burning, cause the very big waste of energy. And because VOC waste gas concentration, composition all are relevant with the different reaction stages of production operating mode, there is the condition of short-time high concentration waste gas emission in the reaction process, and when high concentration waste gas got into the boiler, the boiler produced the detonation condition, caused serious damage to the boiler.
Therefore, the reasonably designed exhaust gas treatment device should be capable of continuously treating the VOC exhaust gas with high efficiency and low cost, which is deficient in the present VOC exhaust gas treatment technology field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a VOC waste gas integrated processing device is provided, solve present VOC exhaust-gas treatment inefficiency, the cost is on the high side, do not possess the problem of commonality.
Technical scheme
A VOC waste gas comprehensive treatment device comprises a system adsorber and a system two adsorbers which are connected in parallel, wherein the gas inlets of the system adsorber and the system two adsorbers are connected with a VOC waste gas input pipeline, the gas outlets of the system adsorber and the system two adsorbers are connected with a gathering discharge port,
the system comprises a natural gas boiler, an exhaust port of the natural gas boiler is connected with a second heat exchanger, an external fresh air inlet is reversely connected with an adsorber of the system or an adsorber of the system through the second heat exchanger, the system adsorber or the adsorber of the system is connected with an air inlet of the natural gas boiler, and VOC waste gas adsorbed in the adsorber of the system or the adsorber of the system is desorbed and then blown into the natural gas boiler for combustion treatment;
the natural gas boiler intermittently works, and when the natural gas boiler does not work, the system adsorber and the system two adsorbers adsorb the VOC waste gas; when the natural gas boiler works, two working conditions exist,
the working condition I is as follows: the input VOC waste gas only enters an adsorber of the system to be adsorbed continuously, hot fresh air heated by the second heat exchanger enters an adsorber of the second system to heat an adsorption medium in the adsorber of the second system, the adsorbed VOC waste gas is desorbed, and the desorbed VOC waste gas enters a natural gas boiler to be combusted;
working conditions are as follows: the input VOC waste gas only enters the second adsorber of the system to be continuously adsorbed, hot fresh air heated by the second heat exchanger enters the system adsorber, an adsorption medium in the system adsorber is heated to desorb the adsorbed VOC waste gas, and the desorbed VOC enters a natural gas boiler to be combusted;
further, the adsorption material in the system adsorber and the system II adsorber is selected from honeycomb activated carbon;
furthermore, 2-10 activated carbon boxes are arranged in the system adsorber or the system two adsorber, and the activated carbon boxes in each adsorption system are connected in series or in parallel or in series-parallel mixed connection mode;
further, the active carbon case is U type structure carbon case, and the active carbon layer distributes in the middle of the carbon case, and the air current is adsorbed by one side active carbon layer after getting into through the top, and the air current gets into active carbon layer below, turns back and gets into opposite side active carbon layer and adsorb once more, through two active carbon adsorption, improves VOC gas adsorption efficiency.
Further, the tail gas of the natural gas boiler enters the third heat exchanger again after passing through the second heat exchanger, and the VOC waste gas desorbed by the system adsorber or the system second adsorber is preheated;
further, the temperature of the fresh air after being heated by the second heat exchanger is 50-100 ℃, and is preferably 80-90 ℃;
further, the VOC waste gas is cooled through the first heat exchanger and then is input into a system adsorber and a system second adsorber for adsorption;
further, the temperature of the VOC waste gas after being cooled by the first heat exchanger is 20-50 ℃, and preferably 30-40 ℃; condensed wastewater may be generated in the temperature reduction process, and the wastewater is directly introduced into a pipeline and led to a wastewater station for treatment;
further, the VOC waste gas cooled by the first heat exchanger is filtered by a prefilter, so that the blockage of adsorption materials in an adsorber of the system and an adsorber of a second system is reduced;
further, a buffer tank is arranged between the pre-filter and the first heat exchanger and used for stabilizing the flow rate of the air flow;
furthermore, the VOC waste gas source comprises the waste gas of a reaction kettle for material processing and stirring, the waste gas generated by product drying and vacuumizing, the waste gas generated during product air flow conveying, and the waste gas of a waste water treatment station.
Further, the VOC exhaust components include, but are not limited to, diethylene glycol, propylene glycol, neopentyl glycol alcohols.
Furthermore, the system adsorber and the system two adsorbers have strong adsorption capacity in the initial adsorption stage, are used for adsorbing high-concentration waste gas and are matched with combustion tail gas of a natural gas boiler.
Further, the natural gas boiler in the technical scheme is a combustion furnace with a combustion function or a similar device for degrading VOC gas molecules into harmless small molecules by thermal destruction, and the protection range of the technical scheme is not limited by the name of natural gas. Except that most plants today use natural gas fired boilers.
Advantageous effects
Adopt the utility model provides a VOC waste gas integrated processing device can 24h all-weather realization carry out high-efficient absorption to the air current of the different VOC exhaust concentration of height. By means of the first heat exchanger and the pre-filter in the system, different VOC gases from different working conditions can be received, and adsorption of the activated carbon adsorption material at the highest effective temperature can be guaranteed or carried out.
The utility model discloses a many adsorption system dynamic adsorption-desorption work flow in turn, parallelly can ensure long-time work in, solve adsorption system's desorption problem, realize each adsorption system's desorption under the precursor that does not influence the normal work of system.
And the system realizes intermittent work of the combustion boiler through the comprehensive integrated design of desorption-adsorption-combustion, overcomes the defect that the VOC waste gas needs to be continuously burned by starting the boiler, saves a large amount of fossil fuel, and improves the treatment efficiency of the VOC waste gas and the use efficiency of the adsorption material.
This device combines together through each adsorption system's switching, with situations such as exhaust gas concentration, air current size under the different work condition of mill, and the integrated design for different adsorption efficiency of adsorption system adsorption phase combine together with exhaust gas concentration fluctuation, can ensure higher adsorption capacity, can guarantee higher adsorption efficiency again, ensure VOC low emission concentration.
Drawings
FIG. 1 is a schematic view showing the connection of the modules of the device of the present invention;
FIG. 2 is a schematic view of the VOC waste gas source of the present invention;
FIG. 3 is a diagram showing the fluctuation of the VOC exhaust gas concentration of the present invention;
FIG. 4 is a schematic view of the flow direction of the air flow in the U-shaped structure of the activated carbon box of the present invention;
FIG. 5 is a U-shaped airflow distribution diagram of the activated carbon box of the present invention;
FIG. 6 is a layout diagram of an actual device of the VOC waste gas comprehensive treatment device of the present invention;
wherein: 1-a first heat exchanger, 2-a buffer tank, 3-a pre-filter, 4-0-a series/parallel valve, 4-1-a system adsorber, 4-2-a system second adsorber, 4-1-1-a system first control valve, 4-1-2-a system first back-flushing valve, 4-1-3-a system second back-flushing valve, 4-1-4-a system second control valve, 4-2-1-a system second first control valve, 4-2-2-a system first back-flushing valve, 4-2-3-a system second back-flushing valve, 4-2-4-a system second control valve, 5-a summary discharge port, 6-a third heat exchanger, 7-second heat exchanger, 8-natural gas boiler.
Detailed Description
The present invention will be further explained with reference to the following embodiments and accompanying drawings 1 to 6.
The utility model provides a VOC waste gas integrated processing device, as shown in the attached figure 1, including adsorption equipment and natural gas boiler processing apparatus, natural gas boiler intermittent type nature work:
when the natural gas boiler does not work, the temperature of the VOC waste gas is controlled by the first heat exchanger 1, the temperature of the air flow is reduced to 30-40 ℃, the air flow flows through the buffer tank 2 at a stable flow speed, then enters the pre-filter 3, then enters the system adsorber 4-1 and the system second adsorber 4-2 for adsorption, and the non-pollution gas after adsorption is discharged through the collecting discharge port 5; in the embodiment, a series/parallel valve 4-0 is arranged between an adsorber 4-1 of the system and a second adsorber 4-2 of the system, a first control valve 4-1-1 of the system is arranged in front of the adsorber of the system, a second control valve 4-1-4 of the system is arranged behind the adsorber of the system, a second first control valve 4-2-1 of the system is arranged in front of the second adsorber of the system, and a second control valve 4-2-4 of the system is arranged behind the second adsorber of the system. When the first control valve of the system, the second control valve of the system and the second control valve of the system are all opened and the serial/parallel valve 4-0 is closed, the system adsorber 4-1 and the system adsorber 4-2 are connected in parallel to adsorb VOC waste gas; when the series/parallel valve 4-0 is opened, and the second first control valve of the system and the second control valve of the system are closed, or the first second control valve of the system and the second first control valve of the system are closed, the system adsorber 4-1 and the second system adsorber 4-2 are connected in series to adsorb VOC waste gas;
when the natural gas boiler works, two working conditions exist,
the working condition I is as follows: the input VOC waste gas only enters the system adsorber to be continuously adsorbed, the high-temperature waste gas discharged by the boiler heats the fresh hot air through the second heat exchanger, the hot fresh air heated by the second heat exchanger is reversely blown into the system adsorber, the adsorption medium in the system adsorber is heated to desorb the adsorbed VOC, and the desorbed VOC waste gas enters the natural gas boiler to be combusted. At the moment, the system is opened by the first control valve, closed by the first back-blowing valve 4-1-2, closed by the second back-blowing valve 4-1-3, opened by the second control valve, closed by the second first control valve, closed by the second control valve, opened by the first back-blowing valve 4-2-2 and opened by the second back-blowing valve 4-2-3.
Working conditions are as follows: when the natural gas boiler works, input VOC waste gas only enters the second adsorber of the system to be continuously adsorbed, hot fresh air exhausted by the second heat exchanger enters the system adsorber, an adsorption medium in the system adsorber is heated to desorb adsorbed VOC, and the desorbed VOC enters the natural gas boiler to be combusted; at the moment, the system closes the first control valve, opens the first back-blowing valve 4-1-2, opens the second back-blowing valve 4-1-3, closes the second control valve, opens the second first control valve, opens the second control valve, closes the first back-blowing valve 4-2-2, and closes the second back-blowing valve 4-2-3.
In the embodiment, the temperature of the tail gas after the combustion of the boiler is about 150 ℃, the temperature of the fresh air can be raised to 80-90 ℃ through the second heat exchanger, and the tail gas is used for an adsorber of a back flushing system or a second adsorber of the system; the reverse-blown VOC waste gas can pass through the third heat exchanger 6 again, and is mixed with natural gas after being heated to enter a boiler for combustion treatment, so that heat loss is reduced, the exhaust emission temperature is reduced, and the utilization efficiency of the capacity is comprehensively improved.
The following examples and associated operating parameters are provided in accordance with the construction and use of the present apparatus in a plant.
As shown in the attached FIG. 2, the VOC waste gas sources in this embodiment include waste gas generated by reaction kettle, waste gas generated by evaporation dehydration process, waste gas generated by vacuum dehydration drying plant, waste gas generated by purification plant, waste gas generated by air transportation, waste water pool, etc. Wherein the concentration of the waste gas generated by the reaction kettle is the highest and the harm is the greatest. Putting the raw materials into a reaction kettle at the beginning of production every day (about 5 points per day), continuously stirring under steam heating, and continuously increasing the concentration along with the progress of the reaction; a moderate steady concentration is reached for a period of time before recharging, and the exhaust gas concentration rises rapidly at the time of recharging (about 14 o' clock per day, which is not fixed and part of the product does not require this procedure, product related); after re-stirring, the exhaust gas flow was relatively stable before evacuation and during evacuation (about 16 points daily, which is not fixed and product related), the exhaust gas produced the highest concentration of exhaust gas. After the vacuum pumping is finished, the reaction kettle enters a heat preservation state, the concentration is stable before the product is filtered, a small wave peak concentration is generated when the product is filtered (about 20 points per day), and the small wave peak concentration is slowly reduced until the production is finished. The specific concentration fluctuations for each time period are shown in figure 3.
This factory building this VOC waste gas integrated processing device, including two adsorption systems of two adsorbers of system adsorber, system, every adsorption system includes two carbon casees. In the stirring and heat preservation stage (about 5 to 13 points and 17 to 22 points), 1 system is adsorbed by 2 carbon boxes, and 2 systems are adsorbed by 4 carbon boxes before and after vacuumizing and before and after adding materials (about 13 to 17 points); during desorption (about 7-12 points), a single carbon box is desorbed, and the other carbon box is in an idle state.
The operation process comprises the following steps: the waste gas is introduced into a pre-filter of the system through a pipeline, and the mixed waste gas is filtered and then enters an activated carbon box. The system is provided with 4 active carbon boxes, namely a No. 1 carbon box, a No. 2 carbon box, a No. 3 carbon box and a No. 4 carbon box. No. 1 and No. 2 carbon boxes are a system I, and No. 3 and No. 4 carbon boxes are a system II. In the adsorption process, the system comprises three conditions of independent adsorption of the system adsorber/the system two adsorbers and system adsorber and two series-connected adsorbers, and in the desorption process, the system I/the system two adsorbers are independent. The system additionally comprises a heat exchanger, an electric cabinet (PLC control system), an adsorption fan (1 is used for 1), a desorption fan, a boiler induced draft fan and the like, wherein the adsorption fan provides airflow power.
The size of each carbon box is 2000mm, and the activated carbon loading is 2.4m3The mass of the honeycomb activated carbon is about 1.2t, the saturated adsorption capacity of the contained activated carbon is about 0.36tVOCs (according to data provided by activated carbon manufacturers), and the daily production of VOCs by enterprises is about 0.02t/d (according to the average measured value). In the first 10 working days of the initial use, the detection is carried out on the waste gas inlet and outlet by one party, and the data shows that the treatment efficiency of the adsorption system is more than or equal to 90 percent, and the TVOC emission concentration is less than or equal to 30mg/m3(ii) a The initial desorption time is determined on the 11 th working day (the adsorption efficiency is not less than 85 percent before the end of the 10 th working day), the desorption temperature is about 85 ℃, and the desorption concentration is about 500mg/m3The air volume is 2000m3The desorption time is 5 hours, and the desorbed waste gas passesThe heat exchanger is mixed with air to be used as air supplement and the air and the natural gas enter the natural gas boiler to be combusted. The natural gas mainly comprises methane (85%), a small amount of ethane (9%), propane (3%), nitrogen (2%) and butane (1%), the actually measured concentration value is more than or equal to 5000ppm and is far higher than the concentration of the desorbed waste gas, a desorption system has no obvious risk, and in addition, according to the actually measured usage surface of the natural gas, the usage amount of the natural gas can be saved by about 1% when the desorption concentration is higher.
By using the equipment, the waste gas in the reaction kettle is treated, so that the effects of improving the treatment efficiency, lowering the operation cost, being convenient to use, reliable in treatment process, protecting the environment, saving energy and the like are achieved. During the use process of our party, the exhaust gas is detected, and the data analysis result is as follows:
continuous adsorption efficiency and desorption amount of activated carbon: according to data, the initial adsorption efficiency of the activated carbon is 95% at most, the adsorption rate is reduced in the using process, and after multiple times of adsorption and desorption, the adsorption efficiency of the activated carbon is about 70% -85%. The desorption concentration is about 100-230 ppm, and the desorption concentration is related to the desorption temperature and the adsorption concentration before desorption;
adsorption efficiency of activated carbon to exhaust gas of different concentrations: the adsorption efficiency of the activated carbon to low-concentration waste gas is high (the adsorption efficiency can reach about 85%, but the adsorption quantity is small); the activated carbon has a low adsorption efficiency (up to about 70% adsorption efficiency, but a large adsorption amount) for high-concentration exhaust gas.
The comparison of adsorption and desorption efficiencies of carbon boxes with different structures: according to data, the air distribution of the U-shaped structure is uniform, so that the adsorption efficiency is higher; the adsorption efficiency of the U-shaped structure carbon box is higher than that of the side-in side-out type carbon box. The adsorption efficiency of the U-shaped structure carbon box is about 80-85%, and the adsorption efficiency of the side-in and side-out structure carbon box is about 70-80%. The utility model provides a U type structure carbon box airflow direction is as attached 4.
When the air flow enters from the right side and is discharged from the left side, the VOC gas concentration distribution diagram at each position inside the carbon box with the U-shaped structure after adsorption is shown in the attached figure 5.
Desorption concentration versus desorption time: the desorption concentration and time relation is that the desorption concentration is firstly increased along with time, when the concentration of the carbon box is reduced to a certain degree, the desorption concentration of the activated carbon is gradually reduced, finally, the desorption concentration of the activated carbon is kept stable and low, at the moment, the boiler is also stopped, and the desorption time and concentration relation is matched with the boiler opening time.
According to the actual use process, under the conditions of stirring and heat preservation (low concentration), the emission concentration after adsorption according to 2 carbon boxes of a single system is very low, and the effect is better; under the conditions of vacuumizing and re-feeding and under the condition of series adsorption of 4 carbon boxes, the discharge concentration is lower and the effect is better after most of vacuumizing and re-feeding working conditions are adsorbed.
When the existing carbon box is used for desorption, the average desorption concentration of the system is 153ppm, and the average desorption concentration of the system is 197 ppm; the average desorption temperature of the system is 84 ℃ and the average desorption temperature of the system is 87 ℃. This data shows that the activated carbon can be desorbed in the presence of air blowback at a certain temperature.
The following table shows the adsorption parameters for each carbon box in actual operation:
table one:
table two:
table three:
table four:
according to the embodiment, the system realizes intermittent work of the combustion boiler through the comprehensive integrated design of desorption-adsorption-combustion, overcomes the defect that the incineration treatment of the boiler needs to be continuously started for VOC waste gas, saves a large amount of fossil fuels, and improves the treatment efficiency of the VOC waste gas and the use efficiency of the adsorption material. Through each adsorption system's switching, with the condition such as exhaust gas concentration, air current size under the different work condition of mill combine together, the integrated design for different adsorption efficiency of adsorption system adsorption phase combine together with exhaust gas concentration fluctuation, can ensure higher adsorption capacity, can guarantee higher adsorption efficiency again, ensure the low emission concentration of VOC.
Claims (10)
1. A VOC waste gas comprehensive treatment device is characterized by comprising a system adsorber and a system two adsorbers which are connected in parallel, wherein the gas inlets of the system adsorber and the system two adsorbers are connected with a VOC waste gas input pipeline, the gas outlets of the system adsorber and the system two adsorbers are connected with a gathering discharge port,
the system comprises a natural gas boiler, an exhaust port of the natural gas boiler is connected with a second heat exchanger, an external air inlet is connected with an adsorber of the system or an adsorber of the system through a second heat exchange reverse connection system, the adsorber of the system or the adsorber of the system is connected with an air inlet of the natural gas boiler, and VOC waste gas adsorbed in the adsorber of the system or the adsorber of the system is desorbed and then blown into the natural gas boiler for combustion treatment.
2. The apparatus of claim 1, wherein a first heat exchanger is disposed between the input pipeline of the VOC waste gas and the gas inlets of the system adsorber and the system adsorber to control the temperature of the VOC waste gas.
3. A VOC exhaust gas integrated processing apparatus according to claim 2, wherein a pre-filter is provided between the first heat exchanger and the air inlets of the system adsorber and the system second adsorber to reduce clogging of the adsorbent material in the system adsorber and the system second adsorber.
4. A VOC exhaust gas comprehensive treatment device according to claim 1, wherein the temperature of the outside air input port after passing through the second heat exchanger is 80 to 90 ℃.
5. A VOC exhaust gas integrated processing apparatus according to claim 1, wherein the exhaust port of the natural gas boiler is connected to a third heat exchanger through a second heat exchanger, and the third heat exchange gas is used for warming the back-blown VOC exhaust gas.
6. The VOC exhaust gas integrated processing device according to claim 1, wherein the adsorbent material in the system adsorber, system two adsorber is selected from activated carbon.
7. A VOC waste gas comprehensive treatment device as claimed in claim 1, wherein 2-10 activated carbon boxes are arranged in one of the system adsorber or the second system adsorber, and the activated carbon boxes in each adsorption system are connected in series or in parallel or in series and parallel mixed connection.
8. The VOC exhaust gas integrated treatment device according to claim 1, wherein the VOC exhaust gas sources include material processing stirred tank exhaust gas, exhaust gas generated by evacuation of product drying, exhaust gas generated by product air flow transportation, and exhaust gas from a wastewater treatment plant.
9. The VOC exhaust gas integrated processing device of claim 1, wherein the VOC exhaust gas components include diethylene glycol, propylene glycol, neopentyl glycol.
10. A VOC exhaust gas integrated processing apparatus according to claim 1, wherein each of the activated carbon tanks is internally configured to: the carbon box is a cube structure, two activated carbon layers are arranged in parallel in the middle, waste gas enters from the upper part and is adsorbed by one activated carbon layer, and then the waste gas is returned from the bottom of the carbon box and is adsorbed by the other activated carbon layer, and then the waste gas is discharged from the upper part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921197822.8U CN210278703U (en) | 2019-07-26 | 2019-07-26 | VOC waste gas comprehensive treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921197822.8U CN210278703U (en) | 2019-07-26 | 2019-07-26 | VOC waste gas comprehensive treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210278703U true CN210278703U (en) | 2020-04-10 |
Family
ID=70104809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921197822.8U Active CN210278703U (en) | 2019-07-26 | 2019-07-26 | VOC waste gas comprehensive treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210278703U (en) |
-
2019
- 2019-07-26 CN CN201921197822.8U patent/CN210278703U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102068890B (en) | Method and device for treating complex industrial organic waste gas | |
| CN204073781U (en) | A kind of modularization organic waste gas purifying treatment system | |
| CN100558445C (en) | The purification method of organic exhaust gas | |
| CN207025012U (en) | Industrial VOC Multi-grade exhaust gas concentration device | |
| CN210699424U (en) | Organic waste gas adsorbs desorption catalytic combustion system | |
| CN201295583Y (en) | Adsorption and catalysis integration device | |
| CN212855120U (en) | Emission device for purifying volatile organic compounds | |
| CN205850524U (en) | Catalytic combustion system after waste gas Adsorption Concentration | |
| CN201015727Y (en) | Organic waste gases or stench processing system | |
| CN102764564A (en) | Waste gas recovery processing system, and recovery processing technique of waste gas | |
| CN109701358B (en) | Organic waste gas adsorption and catalytic combustion combined system and process thereof | |
| JP2007521344A (en) | Method and apparatus for using VOC as engine fuel | |
| CN102688671A (en) | Synthesis method for removing nitric oxide in flue gas | |
| CN213824071U (en) | Active carbon adsorption and desorption catalytic combustion equipment | |
| CN202028320U (en) | Organic waste gas processing plant | |
| CN210278703U (en) | VOC waste gas comprehensive treatment device | |
| CN210729078U (en) | A desorption system is concentrated to vapor for handling useless active carbon that contains VOCs | |
| CN201049277Y (en) | Organic exhaust gas adsorption burning purifying device | |
| CN210729079U (en) | Integrated car of portable nitrogen gas desorption regeneration system | |
| CN220633649U (en) | VOCs (volatile organic Compounds) combined treatment device for zeolite molecular sieve fixed bed and single-tower electric RTO (room temperature oxygen) | |
| CN213885609U (en) | VOCs exhaust-gas treatment system | |
| JP3988762B2 (en) | Organic substance-containing gas treatment equipment and treatment method | |
| CN110237649A (en) | VOC exhaust gas total system | |
| CN220589492U (en) | Treatment device for temperature and humidity periodical change waste gas | |
| CN217698578U (en) | Efficient adsorption device for solvent recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200630 Address after: 528400 card 2501, annex building, No.3 business building, Gangyi road Creative Industry Park, central urban area, Torch Development Zone, Zhongshan City, Guangdong Province (residence application and cluster registration) Patentee after: Zhongshan Zhiming energy saving and Environmental Protection Technology Co.,Ltd. Address before: 528400, No. 3, building 69, Blaupunkt tower, the first city, Shiqi District, Guangdong, Zhongshan Patentee before: Zhongshan Canaan Energy Saving Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |