CN111974161A - VOCs waste gas treatment intelligent activated carbon adsorption box and use method thereof - Google Patents
VOCs waste gas treatment intelligent activated carbon adsorption box and use method thereof Download PDFInfo
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- CN111974161A CN111974161A CN202011020286.1A CN202011020286A CN111974161A CN 111974161 A CN111974161 A CN 111974161A CN 202011020286 A CN202011020286 A CN 202011020286A CN 111974161 A CN111974161 A CN 111974161A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
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Abstract
The invention discloses an intelligent active carbon adsorption tank for VOCs waste gas treatment and a using method thereof, the intelligent active carbon adsorption tank comprises a main shell, a plurality of active carbon filling units are arranged in an inner cavity of the main shell, one end of the main shell is provided with a waste gas inlet reducing pipe, the other end of the main shell is provided with a waste gas outlet reducing pipe, the outlet end of the waste gas outlet reducing pipe is provided with an outlet air pipe, the outlet air pipe is provided with an online monitoring device, the main shell is provided with at least one temperature transmitter and a differential pressure transmitter, the waste gas inlet end of the main shell is provided with a humidity transmitter, the outer side of the main shell is provided with a control box, the main shell is also provided with a fire extinguishing. The adsorption box can be used for observing and monitoring the running condition of equipment and the standard-reaching condition of waste gas emission on line in real time, and is convenient to operate. The activated carbon adsorption process can be widely and stably used for VOCs waste gas treatment.
Description
Technical Field
The invention relates to waste gas treatment equipment, in particular to an intelligent active carbon adsorption tank for VOCs waste gas treatment and a using method thereof.
Background
The treatment of waste gas containing VOCs is the key point of the current waste gas treatment of industrial enterprises, and the treatment of the waste gas of the industrial enterprises is difficult because the VOCs waste gas components of the industrial enterprises are relatively complex. The main technologies for VOCs waste gas treatment include combustion method, biological method, chemical washing method, low-temperature plasma method, photocatalytic oxidation method and adsorption method. Among them, the combustion method has high treatment efficiency, but has high one-time investment and operation cost, and simultaneously causes the problem of secondary pollution, so that a plurality of enterprises are difficult to bear. Other treatment techniques are affected by the specific composition of VOCs in the exhaust gas, and the range of application is limited.
The active carbon adsorption technology has strong broad spectrum in the field of VOCs waste gas treatment due to the micropore adsorption effect, and can treat VOCs waste gas with various components. However, there are several problems in the use of activated carbon that limit its use in the field of VOCs exhaust treatment: (1) the adsorption capacity of the activated carbon is limited, the purification efficiency of VOCs after saturated adsorption is very low, and enterprises and environmental protection supervisors are difficult to find in time, so that the exhaust gas is discharged in an overproof manner; (2) because a small amount of particulate matters contained in the waste gas are accumulated in the activated carbon for a long time, the resistance of the activated carbon adsorption box is increased, and the waste gas purification efficiency is reduced; (3) the waste gas containing high humidity enters the activated carbon box body, so that the adsorption position of the activated carbon is occupied by water molecules and the activated carbon is difficult to desorb, and the VOCs adsorption efficiency of the activated carbon is reduced; (4) the activated carbon can release heat in the process of absorbing VOCs, if the heat cannot be timely led out along with waste gas, the heat can be accumulated at certain parts (particularly corners of a box body), and the spontaneous combustion of the activated carbon can be caused to cause safety accidents; (5) the current active carbon is changed comparatively loaded down with trivial details, inconvenient use.
Due to the reasons, the activated carbon adsorption technology is greatly limited in the practical application process, and particularly, the environmental protection supervision department is inconvenient to supervise the technology, so that the up-to-standard stability of the technology is difficult to trust. With the development of VOCs treatment markets, the technology gradually moves towards the elimination edge. In the actual production process of enterprises, a plurality of VOCs waste gas sources with small air volume and low concentration exist, and the most suitable treatment process is just activated carbon adsorption.
Disclosure of Invention
The invention aims to provide an intelligent active carbon adsorption tank for VOCs waste gas treatment and a using method thereof, which solve the defects of an active carbon adsorption process in the application process of the VOCs waste gas treatment field, can observe and monitor the operation condition of equipment and the standard reaching condition of waste gas emission on line in real time, and is convenient to operate. The method can ensure that the activated carbon adsorption process is widely and stably used for VOCs waste gas treatment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the VOCs waste gas treatment intelligent activated carbon adsorption tank comprises a main shell, a plurality of pull-out activated carbon filling units are arranged in an inner cavity of the main shell, one end of the main shell is provided with a waste gas inlet divergent pipe, a waste gas outlet reducing pipe is arranged at the other end corresponding to the exhaust gas outlet reducing pipe, an outlet air pipe is arranged at the outlet end of the waste gas outlet reducing pipe, an online monitoring device capable of monitoring the concentration of VOCs in the waste gas in real time is arranged on the outlet air pipe, at least one temperature transmitter capable of monitoring the temperature of the inner cavity of the main shell in real time and a differential pressure transmitter capable of monitoring the pressure difference in the shell are arranged on the main shell, a humidity transmitter which can monitor the humidity of the waste gas to be treated is arranged at the waste gas inlet end of the main shell, a control box is arranged at the outer side of the main shell, a fire extinguishing device is also arranged on the main shell, the temperature transmitter, the differential pressure transmitter, the humidity transmitter, the online monitoring device and the fire extinguishing device are respectively connected with the control box through lines.
Further, extinguishing device includes gas interface, valve, gas outlet and gas dish, the gas interface is connected to the one end of valve, and the gas outlet is connected to the other end, the end of giving vent to anger of gas outlet locates main casing inner chamber, and the end of giving vent to anger of gas outlet is equipped with the gas dish, the bottom surface and the side of gas dish evenly are equipped with a plurality ofly can be with inert gas spun gas outlet.
Furthermore, the pull-out type active carbon filling units are provided with a plurality of cavities which are arranged in the main shell in sequence, and each pull-out type active carbon filling unit is communicated with the cavity of the main shell.
Furthermore, a gas uniform distribution plate is arranged in the waste gas inlet divergent pipe, and the humidity transmitter is arranged on the waste gas inlet divergent pipe.
Further, the control box is equipped with the display screen that shows temperature, humidity, pressure value and concentration value and the alarm that plays the warning effect.
The use method of the VOCs waste gas treatment intelligent activated carbon adsorption tank comprises the following steps:
(1) waste gas enters the main shell of the equipment through a waste gas inlet and a waste gas inlet divergent pipe, the moisture content of the waste gas is measured by a humidity transmitter, when the humidity of the waste gas exceeds the standard, an alarm prompt is sent by a control box, and a user inspects a waste gas generation source and front end pretreatment according to the alarm until the humidity of the waste gas meets the requirement;
(2) waste gas with the humidity reaching the standard enters an active carbon filling unit in the equipment main body, and the waste gas containing VOCs is purified through the adsorption effect of active carbon; the heat release can be realized due to the adsorption of the activated carbon, the temperature in the equipment main body is monitored in real time through a plurality of temperature transmitters arranged in the equipment, when the temperature reaches a set value, an alarm of a control box gives an alarm, and a fire extinguishing device is automatically started manually or by the control box, so that a fire disaster is prevented;
(3) the standard-reaching gas adsorbed by the activated carbon filling unit is discharged through the waste gas outlet reducing pipe and the outlet air pipe, when the gas passes through the outlet air pipe, the adsorbed gas can be monitored in real time through the VOCs concentration online monitoring device arranged on the outlet air pipe, and the VOCs concentration in the waste gas is observed and recorded, so that the gas can be replaced in time before the activated carbon adsorption is saturated, and the waste gas is prevented from exceeding the standard and being discharged;
(4) the active carbon adsorption process can be slowly blocked due to accumulation of a small amount of dust, a differential pressure transmitter arranged on the equipment main body can monitor the differential pressure of the equipment main body in real time, when the differential pressure exceeds a set value, the control box gives an alarm, and a user carries out shutdown inspection;
(5) in the use, the change of display screen real-time observation numerical value on the user's accessible control box can be optimized to the user demand according to the change situation of numerical value, sets for suitable alarm value, ensures the steady operation of waste gas treatment facility, reduces the working costs.
Further, the outlet concentration alarm limit value of the waste gas is 55mg/m3-65mg/m3, the differential pressure alarm limit value of the gas in the main shell is 350Pa-450Pa, the temperature alarm value of the gas in the main shell is limited to 45-55 ℃, and the humidity alarm value of the inlet waste gas is limited to 85-95% relative humidity.
The invention has the beneficial effects that:
the adsorption box provided by the invention has the advantages that the differential pressure transmitter is arranged on the main shell, so that the resistance change condition of the equipment main body can be observed and recorded in real time, and the adsorption box is used for judging whether the activated carbon has a blocking phenomenon caused by the pulverization of the activated carbon or the particulate matter in the waste gas, so that the activated carbon can be replaced in time. Through setting up temperature transmitter, but the temperature of the interior active carbon bed of real-time observation equipment main part, spontaneous combustion phenomenon because of the local rapid intensification of active carbon bed causes can in time be prevented and avoided, the potential safety hazard is eliminated. Through setting up VOCs concentration on-line monitoring device, can implement VOCs concentration in observing and the record waste gas to in time change before the active carbon adsorption saturation, prevent that waste gas from exceeding standard and discharging. Meanwhile, the pulverization of the activated carbon caused by the high-humidity waste gas entering the main shell can be prevented, and the service life is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the fire suppression apparatus;
fig. 3 is a bottom view of fig. 2.
In the figure:
1. an inlet flange; 2. a waste gas inlet divergent pipe; 3. a main housing; 4. a waste gas outlet reducer; 5. an outlet flange; 6. an outlet air duct; 7. a drawing type active carbon filling unit; 8. a control box; 9. an on-line monitoring device; 10. a differential pressure transmitter; 11. a temperature transmitter; 12. a humidity transmitter; 13. fire extinguishing device, 131 gas interface, 132 valve, 133 gas outlet, 134 gas disk, 135 gas outlet.
Detailed Description
The intelligent activated carbon adsorption tank for VOCs waste gas treatment and the use method thereof are described in detail below with reference to the attached drawings of the specification.
As shown in fig. 1, the intelligent activated carbon adsorption tank for VOCs waste gas treatment of the present invention comprises a plurality of pull-out activated carbon filling units and a main housing 3, wherein the plurality of pull-out activated carbon filling units 7 are disposed in an inner cavity of the main housing 3, the plurality of pull-out activated carbon filling units can be arranged horizontally or longitudinally, and a pulley is disposed at the bottom of each pull-out activated carbon filling unit to facilitate the pulling and replacement of activated carbon. Be equipped with gaseous equipartition board in the waste gas import divergent pipe 2, can guarantee the even multi-angle of the even entering main casing body 3 inner chamber of waste gas through gaseous equipartition board. One end of the main shell 3 is provided with a waste gas inlet divergent pipe 2, and a humidity transmitter 12 is arranged on the waste gas inlet divergent pipe 2. The free end of the waste gas inlet divergent pipe is connected with a waste gas conveying pipeline through an inlet flange 1. A waste gas outlet reducing pipe 4 is arranged at the other end corresponding to the waste gas outlet, the outlet end of the waste gas outlet reducing pipe 4 is connected with an outlet air pipe 6 through an outlet flange, and an online monitoring device 9 capable of monitoring the concentration of VOCs in waste gas in real time is arranged on the outlet air pipe 6. But be equipped with the differential pressure transmitter 10 of the temperature transmitter 11 of at least one real-time supervision main casing body inner chamber temperature and the internal pressure differential pressure of monitoring casing on the main casing body 3, temperature transmitter and differential pressure transmitter can set up in a plurality of positions according to the size of the main casing body, guarantee the maximum monitoring range, improve monitoring accuracy. The waste gas entrance point of main casing body 3 is equipped with humidity transmitter 12 that can monitor pending waste gas humidity, and the main casing body outside is equipped with control box 8, still is equipped with extinguishing device 13 on the main casing body, and temperature transmitter, differential pressure transmitter, humidity transmitter and on-line monitoring device pass through the wire respectively with the control box electricity federation, can monitor the change of every number through the display screen on the control box, when exceeding and set for numerical value, alarm sends alarm signal.
The waste gas uniformly enters the main shell 3 of the device after passing through the divergent pipe. The main shell body is made of carbon steel Q235B in an anti-corrosion mode, the interior of the main shell body is of a frame structure, the sectional area of the shell body is 1.6m multiplied by 1.6m, and the section wind speed is not higher than 0.6 m/s. The length of the shell is 2 meters, and the retention time of the waste gas adsorption treatment is not less than 3 s. The treated waste gas is discharged through a waste gas inlet reducing pipe 4 and a waste gas outlet flange 5, the outlet flange is connected with an outlet air pipe 6 of the device, and the material is carbon steel Q235B corrosion resistance. The outlet air pipe can continue to be connected with the air pipe and finally discharged through the exhaust funnel up to the standard.
As shown in figure 1, the drawing type active carbon filling unit 7 is provided with 16 units, and the front surface and the back surface of the device shell can be opened. One side of the front surface is provided with 8, and the other side of the back surface is provided with 8. The bottom of pull cabinet is equipped with the pulley design, and the activated carbon volume that single unit can load is about 80 ~ 100kg, improves single unit's that loads change convenience under the prerequisite of guaranteeing the biggest treatment effeciency of waste gas, and the enterprise need not to entrust can change by oneself.
As shown in fig. 2 and 3, the fire extinguishing apparatus 13 includes a gas port 131, a valve 132, a gas outlet 133, and a gas disk 134, one end of the valve is connected to the gas port, and the other end is connected to the gas outlet, the gas outlet of the gas outlet is disposed in the inner cavity of the main housing, the gas disk is disposed at the gas outlet of the gas outlet, and a plurality of gas outlets 135 for ejecting inert gas are uniformly disposed on the bottom surface and the side surface of the gas disk. When the temperature in the main shell is higher than the set value, the alarm of the control box 8 gives an alarm. But fire extinguishing device's opening manual control also can be through control box automatic control, if the local spontaneous combustion that causes because of the too fast coming of temperature rise of active carbon, can open the valve automatically and let in inert gas, reduce gaseous oxygen content and reach fire extinguishing effect, prevent that the incident from further taking place.
The drawing type active carbon filling unit 7 is provided with a plurality of cavities which are arranged in the main shell in sequence, and each drawing type active carbon filling unit is communicated with the cavity of the main shell. The exhaust gas entering the shell can contact with the activated carbon in the largest area, and the exhaust gas is adsorbed by the activated carbon in the drawing type activated carbon filling unit.
The control box 8 is provided with a display screen for displaying temperature, humidity, pressure value and concentration value and an alarm for warning. The temperature, humidity, differential pressure transmitter and concentration on-line monitoring equipment which are integrally contained in the equipment are integrally displayed in the control box. Meanwhile, an internet of things card can be further arranged inside the control box, the data can be transmitted to a network end in real time, and online data can be checked in real time on the internet or a mobile end APP.
Wherein the outlet concentration alarm limit value of the waste gas is 55mg/m3-65mg/m3The alarm limit value of the differential pressure of the gas in the main shell is 350Pa-450Pa, the alarm value of the temperature of the gas in the main shell is limited to 45 ℃ -55 ℃, and the alarm value of the humidity of the inlet exhaust gas is limited to 85% -95% relative humidity.
The use method of the VOCs waste gas treatment intelligent activated carbon adsorption tank comprises the following steps:
(1) VOCs-containing waste gas enters the main shell 3 of the equipment through the waste gas inlet divergent pipe 2, the moisture content of the waste gas is firstly measured through the humidity transmitter 12, and if the moisture content of the waste gas is normal, the waste gas can continuously flow to the pull-out type activated carbon filling unit 3 in the shell for adsorption. The inlet exhaust gas humidity alarm value is defined as 85% to 95% relative humidity, preferably 90% relative humidity. When the humidity of the waste gas exceeds the standard, the control box 8 sends out an alarm prompt, and a user inspects the waste gas generation source and the front-end pretreatment according to the alarm until the humidity of the waste gas meets the requirement.
When the relative humidity of the waste gas exceeds 90%, the integrated control box on the equipment main body can give an audible and visual alarm, a user can check the waste gas generation source and the front end pretreatment according to the alarm, and the integrated control box is stopped when necessary until the recent humidity of the waste gas meets the requirement, so that the humidity in the waste gas is prevented from being condensed into open water to cause adverse effects on the activated carbon and the equipment. If the control box is provided with a network end, the alarm information can be transmitted to a computer or a mobile end through the Internet of things card.
(2) Waste gas with the humidity reaching the standard enters an active carbon filling unit in the equipment main body, and the waste gas containing VOCs is purified through the adsorption effect of active carbon; because of the active carbon adsorption can be exothermic, carry out real-time supervision to the temperature in the equipment main part through a plurality of temperature transmitters 11 of equipment inside arrangement, after the temperature reached the setting value, control box alarm was reported to the police and start extinguishing device prevented that the conflagration from taking place.
The alarm value of the temperature of the gas in the main shell 3 is limited to 45-55 ℃, and is preferably 50 ℃. If the local temperature exceeds 50 ℃, the intelligent integrated control box triggers sound and light alarm, and the user carries out shutdown inspection. If the control box is provided with a network end, the computer or the mobile end can receive the alarm information in real time. If the temperature rises rapidly to over 100 ℃ in a short time, the control box automatically starts the valve of the fire extinguishing device 13, and the fire is prevented from happening by the inert gas sprayed by the fire extinguishing device. Before the fire extinguishing device is used, an equipment user is required to separately configure an inert gas source. Because the equipment scale is less, the configuration 8L steel bottle can, conveniently change after using. The fire extinguishing device is opened when the local temperature of the activated carbon is increased too fast due to adsorption and heat release and possibly caused fire accidents through detection of the temperature transmitter inside, so that the fire extinguishing device can prevent accidents in the bud.
(3) Gas up to standard after the activated carbon filling unit adsorbs is discharged through exhaust outlet reducer 4 and outlet air pipe 6, when gas was through outlet air pipe 6, can carry out real-time supervision to the gas after adsorbing through the online monitoring device of VOCs concentration 9 that sets up on the outlet air pipe, can implement VOCs concentration in observing and the record waste gas to in time change before the activated carbon adsorption saturation, prevent that waste gas from exceeding standard and discharging.
(4) And the activated carbon adsorption process can be slowly blocked due to accumulation of a small amount of dust, a differential pressure transmitter arranged on the equipment main body can monitor the differential pressure of the equipment main body in real time, and the alarm limit value of the gas differential pressure in the main shell is 350-450 Pa, preferably 400 Pa. When the differential pressure exceeds a set value, the control box gives an alarm.
VOCs concentration on-line monitoring equipment of equipment export can be to VOCs's export concentration and whether up to standard real-time supervision, because the reduction of active carbon adsorption efficiency is slow linear process, when emission concentration reaches waste gas VOCs and discharges 90% of execution standard value, the acousto-optic warning is triggered to intelligent integrated control case, and the computer or remove the end and can receive alarm information in real time equally, and the user shuts down the inspection, can change the active carbon that adsorbs saturation.
(5) In the use, the change of display screen real-time observation numerical value on the user's accessible control box can be optimized to the user demand according to the change situation of numerical value, sets for suitable alarm value, ensures the steady operation of waste gas treatment facility, reduces the working costs.
The adsorption box is mainly used for treating the VOCs waste gas with small air quantity and low concentration. The whole equipment is designed into a box body, the VOCs treatment process is activated carbon adsorption, and the VOCs-containing waste gas is discharged after reaching the standard through activated carbon adsorption. The active carbon in the intelligent active carbon adsorption box body is convenient to replace, and can be replaced automatically according to the prompt before the active carbon adsorption is saturated; meanwhile, the normal operation of the activated carbon adsorption box is ensured through various monitors and supporting facilities. The defects of the active carbon adsorption process in the application process in the field of VOCs waste gas treatment are overcome, the active carbon adsorption process can be widely and stably used for VOCs waste gas treatment, particularly a reliable treatment process is provided for the treatment of low-air-volume and low-concentration VOCs-containing waste gas, and the problem of waste gas treatment in the field is solved for enterprises and environmental protection supervision departments.
While the foregoing is directed to the principles of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Other technical features than those described in the specification are known to those skilled in the art.
Claims (7)
- VOCs waste gas treatment intelligence active carbon adsorption case fills the unit including a plurality of pull formula active carbon, and characterized by still includes the main casing body, and a plurality of pull formula active carbon fill the unit and locate main casing inner chamber, the one end of the main casing body is equipped with waste gas import divergent tube, and it is equipped with exhaust outlet reducer to correspond the other end, the exit end of exhaust outlet reducer is equipped with the export tuber pipe, be equipped with the on-line monitoring device of VOCs concentration in the real-time supervision waste gas on the export tuber pipe, be equipped with at least one temperature transmitter that can real-time supervision main casing inner chamber temperature and the differential pressure transmitter of monitoring internal pressure difference of casing on the main casing body, the waste gas entrance point of the main casing body is equipped with the humidity transmitter that can monitor pending waste gas humidity, and the main casing body outside is equipped with the control box, still, The on-line monitoring device and the fire extinguishing device are respectively connected with the control box through lines.
- 2. The VOCs waste gas treatment intelligence active carbon adsorption case of claim 1, characterized by, extinguishing device includes gas interface, valve, gas outlet and gas dish, the gas interface is connected to the one end of valve, and the gas outlet is connected to the other end, the end of giving vent to anger of gas outlet locates main casing inner chamber, and the end of giving vent to anger of gas outlet is equipped with the gas dish, the bottom surface and the side of gas dish evenly are equipped with a plurality of gas outlet that can spout inert gas.
- 3. The VOCs waste gas treatment intelligent activated carbon adsorption tank of claim 1, wherein the pull-out activated carbon filling unit is provided with a plurality of pull-out activated carbon filling units which are sequentially arranged in the inner cavity of the main shell, and each pull-out activated carbon filling unit is communicated with the inner cavity of the main shell.
- 4. The VOCs waste gas treatment intelligent activated carbon adsorption tank of claim 1, wherein the waste gas inlet divergent pipe is internally provided with a gas uniform distribution plate, and the humidity transmitter is arranged on the waste gas inlet divergent pipe.
- 5. The VOCs waste gas treatment intelligent activated carbon adsorption box of claim 1, wherein the control box is provided with a display screen for displaying temperature, humidity, pressure values and concentration values and an alarm for warning.
- The use method of the VOCs waste gas treatment intelligent activated carbon adsorption tank is characterized by comprising the following steps:(1) waste gas enters the main shell of the equipment through a waste gas inlet and a waste gas inlet divergent pipe, the moisture content of the waste gas is measured by a humidity transmitter, when the humidity of the waste gas exceeds the standard, an alarm prompt is sent by a control box, and a user inspects a waste gas generation source and front end pretreatment according to the alarm until the humidity of the waste gas meets the requirement;(2) waste gas with the humidity reaching the standard enters an active carbon filling unit in the equipment main body, and the waste gas containing VOCs is purified through the adsorption effect of active carbon; the heat release can be realized due to the adsorption of the activated carbon, the temperature in the equipment main body is monitored in real time through a plurality of temperature transmitters arranged in the equipment, when the temperature reaches a set value, an alarm of a control box gives an alarm, and a fire extinguishing device is automatically started manually or by the control box, so that a fire disaster is prevented;(3) the standard-reaching gas adsorbed by the activated carbon filling unit is discharged through the waste gas outlet reducing pipe and the outlet air pipe, when the gas passes through the outlet air pipe, the adsorbed gas can be monitored in real time through the VOCs concentration online monitoring device arranged on the outlet air pipe, and the VOCs concentration in the waste gas is observed and recorded, so that the gas can be replaced in time before the activated carbon adsorption is saturated, and the waste gas is prevented from exceeding the standard and being discharged;(4) the active carbon adsorption process can be slowly blocked due to accumulation of a small amount of dust, a differential pressure transmitter arranged on the equipment main body can monitor the differential pressure of the equipment main body in real time, when the differential pressure exceeds a set value, the control box gives an alarm, and a user carries out shutdown inspection;(5) in the use, the change of display screen real-time observation numerical value on the user's accessible control box can be optimized to the user demand according to the change situation of numerical value, sets for suitable alarm value, ensures the steady operation of waste gas treatment facility, reduces the working costs.
- 7. The use method of the VOCs waste gas treatment intelligent activated carbon adsorption tank of claim 6, wherein the outlet concentration alarm limit value of the waste gas is 55mg/m3-65mg/m3, the gas differential pressure alarm limit value in the main shell is 350Pa-450Pa, the gas temperature alarm value in the main shell is 45 ℃ -55 ℃, and the inlet waste gas humidity alarm value is 85% -95% relative humidity.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055025A (en) * | 2022-05-06 | 2022-09-16 | 北京加标环境科技有限公司 | VOCs waste gas intelligent collection and treatment system used in dangerous waste storage room |
| CN115646129A (en) * | 2022-10-31 | 2023-01-31 | 上海申榕环保设备有限公司 | Working state detection method of waste gas purification device and related components thereof |
| CN115754149A (en) * | 2022-11-17 | 2023-03-07 | 北京深态环境科技有限公司 | Monitoring method, device and equipment for waste gas treatment process |
-
2020
- 2020-09-25 CN CN202011020286.1A patent/CN111974161A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055025A (en) * | 2022-05-06 | 2022-09-16 | 北京加标环境科技有限公司 | VOCs waste gas intelligent collection and treatment system used in dangerous waste storage room |
| CN115646129A (en) * | 2022-10-31 | 2023-01-31 | 上海申榕环保设备有限公司 | Working state detection method of waste gas purification device and related components thereof |
| CN115754149A (en) * | 2022-11-17 | 2023-03-07 | 北京深态环境科技有限公司 | Monitoring method, device and equipment for waste gas treatment process |
| CN115754149B (en) * | 2022-11-17 | 2023-09-01 | 北京深态环境科技有限公司 | Monitoring method, device and equipment for waste gas treatment process |
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