VOCs organic waste gas treatment device

Abstract

The utility model discloses a VOCs organic waste gas treatment device which comprises a carbon box, clamping seats are fixedly connected to the two sides of the inner side face of the carbon box, activated carbon adsorption plates are clamped in the clamping seats, and a conveying pipe is fixedly connected to the bottom of the inner side face of the carbon box. According to the VOCs organic waste gas treatment device, an activated carbon adsorption plate, a fresh air heat exchanger, a fan and a combustion furnace are arranged, the activated carbon adsorption plate adsorbs organic components in waste gas into micropores of activated carbon for concentration, filtered clean gas reaches the standard and is discharged, and fresh air is heated to a preset value through the fresh air heat exchanger and then enters a carbon box through a second air inlet pipe; organic waste gas subjected to desorption treatment is purged, meanwhile, VOCs organic waste gas is conveyed into a combustion furnace through a gas collecting pipe and a gas collecting hood through a draught fan, the VOCs organic waste gas is decomposed into carbon dioxide and water vapor after being subjected to catalytic combustion, and finally the VOCs organic waste gas is conveyed to a fresh air heat exchanger through a connecting pipe to be discharged after being subjected to heat exchange and cooling and reaching the standard, so that an activated carbon adsorption plate can be recycled; and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a VOCs organic waste gas treatment device. Background Technology

[0002] VOCs (volatile organic compounds) are a common type of air pollutant. They are generally characterized by being flammable and explosive, toxic and harmful, insoluble in water, soluble in organic solvents, and difficult to treat. In order to eliminate VOCs pollution, VOCs treatment is necessary.

[0003] A search revealed that Chinese Patent Publication (Announcement) No. CN209848621U discloses a distributed VOCs organic waste gas treatment and collection device, including a collection box, an adsorption chamber welded to the inner wall of the collection box, a placement rack welded inside the adsorption chamber, a guide groove on the surface of the placement rack, and an activated carbon adsorption plate slidably connected inside the guide groove. The distributed VOCs organic waste gas treatment and collection device proposed in this utility model sets the activated carbon adsorption plate as a detachable structure, increasing the adsorption efficiency and facilitating replacement and filling.

[0004] Although the aforementioned patent allows for the replacement of activated carbon adsorption plates, these plates have a short lifespan and require replacement after a certain period of use. Repeated replacements are costly and inconvenient. Therefore, a VOCs organic waste gas treatment device needs to be designed to address these issues. Utility Model Content

[0005] The main objective of this invention is to provide a VOCs organic waste gas treatment device that can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A VOCs (volatile organic compounds) waste gas treatment device includes a carbon box. Both sides of the inner side of the carbon box are fixedly connected to mounting brackets, and activated carbon adsorption plates are mounted inside the mounting brackets. A conveying pipe is fixedly connected to the bottom of the inner side of the carbon box. One end of the conveying pipe is fixedly connected to a first air inlet pipe, and the other end is fixedly connected to a second air inlet pipe. One end of the second air inlet pipe is fixedly connected to a fresh air heat exchanger. A gas collection hood is fixedly connected to the back of the carbon box. A gas collection pipe is fixedly connected to the outer surface of the gas collection hood. One end of the gas collection pipe is fixedly connected to a fan, and one end of the fan is fixedly connected to a combustion furnace. A connecting pipe is fixedly connected to the top of the outer surface of the combustion furnace, and the connecting pipe is fixedly connected to the fresh air heat exchanger.

[0008] In order to achieve the effect of easy and uniform gas dispersion, as a VOCs organic waste gas treatment device of this utility model, the upper surface of the conveying pipe is provided with aeration holes, and the number of aeration holes is several.

[0009] In order to facilitate the control of the air intake pipe, as a VOCs organic waste gas treatment device of this utility model, a first control valve is fixedly connected to the outer surface of the first air intake pipe, and a second control valve is fixedly connected to the outer surface of the second air intake pipe.

[0010] In order to enhance the exhaust effect, as a VOCs organic waste gas treatment device of this utility model, a support plate is fixedly connected to the top of the inner side of the carbon box, and an exhaust fan is fixedly connected to the lower surface of the support plate.

[0011] In order to prevent dust from entering the carbon box, as a VOCs organic waste gas treatment device of this utility model, a dustproof plate is snapped onto the upper surface of the carbon box, and handles are fixedly connected to both sides of the upper surface of the dustproof plate.

[0012] In order to facilitate the fixing of the dustproof plate, as a VOCs organic waste gas treatment device of this utility model, a fixing block is fixedly connected to the top of the outer surface of the carbon box, and a pressure block is rotatably connected to the outer surface of the fixing block.

[0013] In order to facilitate the intake of air into the fresh air heat exchanger, as a VOCs organic waste gas treatment device of this utility model, a third air inlet pipe is fixedly connected to the front of the fresh air heat exchanger, and a first plug is sleeved on one end of the third air inlet pipe.

[0014] In order to facilitate the exhaust of the fresh air heat exchanger, as a VOCs organic waste gas treatment device of this utility model, an exhaust pipe is fixedly connected to the upper surface of the fresh air heat exchanger, and a second plug is sleeved on one end of the exhaust pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, through the arrangement of activated carbon adsorption plates, fresh air heat exchangers, fans, and combustion furnaces, the activated carbon adsorption plates adsorb organic components in the waste gas into the micropores of activated carbon for concentration. The filtered clean gas meets emission standards. Fresh air is then transported to the fresh air heat exchanger, heated to a predetermined value, and enters the carbon box through the second air inlet pipe to purge and desorb the high-concentration VOCs organic waste gas. Simultaneously, the gas collection pipe and gas collection hood transport the VOCs organic waste gas into the combustion furnace through the fan. After catalytic combustion, the VOCs organic waste gas is decomposed into carbon dioxide and water vapor. Finally, it is transported to the fresh air heat exchanger through the connecting pipe for heat exchange and cooling before being discharged after meeting emission standards. This allows the device to desorb and regenerate the activated carbon adsorption plates, enabling its adsorption function to be reused and reducing operating costs.

[0017] 2. In this utility model, by setting up aeration holes, exhaust fans, and dustproof plates, multiple aeration holes evenly disperse the externally transported VOCs organic waste gas and the heated air transported by the fresh air heat exchanger, so that the two can be better distributed inside the carbon box, thereby enhancing the VOCs organic waste gas treatment efficiency and the regeneration effect of the activated carbon adsorption plate, increasing the practicality of the device. The exhaust fan can accelerate the flow speed of the waste gas, thereby enhancing the waste gas treatment efficiency. The dustproof plate covers the top opening of the carbon box, reducing the entry of external dust and impurities, and enhancing the dustproof effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0019] Figure 2 This is a rear view structural diagram of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the charcoal box according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fresh air heat exchanger according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the combustion furnace structure according to an embodiment of the present utility model.

[0023] In the diagram: 1. Carbon box; 2. Card holder; 3. Activated carbon adsorption plate; 4. Conveying pipe; 5. First air inlet pipe; 6. Second air inlet pipe; 7. Fresh air heat exchanger; 8. Gas collection hood; 9. Gas collection pipe; 10. Fan; 11. Combustion furnace; 12. Connecting pipe; 13. Aeration hole; 14. First control valve; 15. Second control valve; 16. Support plate; 17. Exhaust fan; 18. Dustproof plate; 19. Handle; 20. Fixing block; 21. Pressing block; 22. Third air inlet pipe; 23. First plug; 24. Exhaust pipe; 25. Second plug. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] like Figure 1-5 As shown, a VOCs organic waste gas treatment device includes a carbon box 1. Both sides of the inner side of the carbon box 1 are fixedly connected to a mounting bracket 2. An activated carbon adsorption plate 3 is mounted inside the mounting bracket 2. A conveying pipe 4 is fixedly connected to the bottom of the inner side of the carbon box 1. One end of the conveying pipe 4 is fixedly connected to a first air inlet pipe 5, and the other end of the conveying pipe 4 is fixedly connected to a second air inlet pipe 6. One end of the second air inlet pipe 6 is fixedly connected to a fresh air heat exchanger 7. A gas collection hood 8 is fixedly connected to the back of the carbon box 1. A gas collection pipe 9 is fixedly connected to the outer surface of the gas collection hood 8. One end of the gas collection pipe 9 is fixedly connected to a fan 10, and one end of the fan 10 is fixedly connected to a combustion furnace 11. A connecting pipe 12 is fixedly connected to the top of the outer surface of the combustion furnace 11, and the connecting pipe 12 is fixedly connected to the fresh air heat exchanger 7.

[0027] In practical use, the activated carbon adsorption plate 3, fresh air heat exchanger 7, fan 10, and combustion furnace 11 are arranged so that the activated carbon adsorption plate 3 is snapped into the inside of the mounting base 2, making installation and disassembly convenient and easy to replace when the service life expires. VOCs organic waste gas is transported to the inside of the conveying pipe 4 through the first air inlet pipe 5. The conveying pipe 4 evenly distributes the VOCs organic waste gas inside the carbon box 1. The activated carbon adsorption plate 3 adsorbs and treats the VOCs organic waste gas, concentrating the organic components in the waste gas into the micropores of the activated carbon. The filtered clean gas meets emission standards. When the activated carbon adsorption plate 3 adsorbs VOCs organic waste gas... When the gas reaches saturation within a certain time and its adsorption capacity decreases, fresh air is delivered to the fresh air heat exchanger 7. After being heated to a predetermined value, it enters the carbon box 1 through the second air inlet pipe 6 to purge the high-concentration VOCs organic waste gas that has undergone desorption treatment. At the same time, the gas collection pipe 9 and the gas collection hood 8 transport the VOCs organic waste gas into the combustion furnace 11 through the fan 10. After catalytic combustion, the VOCs organic waste gas is decomposed into carbon dioxide and water vapor. Finally, it is transported to the fresh air heat exchanger 7 through the connecting pipe 12 for heat exchange and cooling to meet the standards before being discharged. This allows the device to desorb and regenerate the activated carbon adsorption plate 3, enabling its adsorption function to be reused and reducing operating costs.

[0028] In this embodiment, the upper surface of the conveying pipe 4 is provided with aeration holes 13, and the number of aeration holes 13 is several.

[0029] In practical use, by setting the aeration holes 13, multiple aeration holes 13 are evenly opened on the upper surface of the conveying pipe 4, so that the externally conveyed VOCs organic waste gas and the heated air conveyed by the fresh air heat exchanger 7 are evenly dispersed, so that the two can be better distributed inside the carbon box 1, the VOCs organic waste gas treatment efficiency is enhanced, the regeneration effect of the activated carbon adsorption plate 3 is enhanced, and the practicality of the device is increased.

[0030] In this embodiment, a first control valve 14 is fixedly connected to the outer surface of the first air intake pipe 5, and a second control valve 15 is fixedly connected to the outer surface of the second air intake pipe 6.

[0031] In practical use, by setting the first control valve 14 and the second control valve 15, when the device is treating waste gas, the second control valve 15 is used to close the port of the second air inlet pipe 6 to prevent waste gas from entering the interior of the fresh air heat exchanger 7, so that the waste gas can be better treated. When it is necessary to regenerate the activated carbon adsorption plate 3, the first control valve 14 is used to close the port of the first air inlet pipe 5 to prevent the heated air from being discharged to the outside, making the control simpler and more convenient.

[0032] In this embodiment, a support plate 16 is fixedly connected to the top of the inner side of the charcoal box 1, and an exhaust fan 17 is fixedly connected to the lower surface of the support plate 16.

[0033] In practical use, the exhaust fan 17 is fixed to the lower surface of the support plate 16, which can speed up the flow of exhaust gas and enhance the efficiency of exhaust gas treatment.

[0034] In this embodiment, a dustproof plate 18 is snapped onto the upper surface of the charcoal box 1, and handles 19 are fixedly connected to both sides of the upper surface of the dustproof plate 18.

[0035] In practical use, the dustproof plate 18 is set on the upper surface of the carbon box 1 to cover its top opening, reducing the entry of external dust and impurities and enhancing the dustproof effect.

[0036] In this embodiment, a fixing block 20 is fixedly connected to the top of the outer surface of the carbon box 1, and a pressure block 21 is rotatably connected to the outer surface of the fixing block 20.

[0037] In practical use, the pressure block 21 is rotatably connected to the outer surface of the fixing block 20. When the dustproof plate 18 is installed, it can be pressed and fixed to ensure stability during use. Rotating the pressure block 21 separates it from the dustproof plate 18, making it easier to disassemble the dustproof plate 18. Installation and disassembly are more convenient.

[0038] In this embodiment, a third air inlet pipe 22 is fixedly connected to the front of the fresh air heat exchanger 7, and a first plug 23 is sleeved on one end of the third air inlet pipe 22.

[0039] In practical use, the third air intake pipe 22 is fixed to the bottom of the front of the fresh air heat exchanger 7, which can deliver fresh air from outside to the inside of the fresh air heat exchanger 7. The first plug 23 prevents dust from entering when delivering external air.

[0040] In this embodiment, an exhaust pipe 24 is fixedly connected to the upper surface of the fresh air heat exchanger 7, and a second plug 25 is fitted onto one end of the exhaust pipe 24.

[0041] In practical use, the exhaust pipe 24 can discharge the gas inside the fresh air heat exchanger 7 after it has reached the required temperature. The second plug 25 prevents external dust from entering when the system is not in use, thus preventing pipe blockage.

[0042] Working principle: During operation, the second control valve 15 closes the second inlet pipe 6 to prevent exhaust gas from entering the fresh air heat exchanger 7. The first inlet pipe 5 transports VOCs organic waste gas to the conveying pipe 4, which evenly distributes the VOCs organic waste gas inside the carbon box 1. The activated carbon adsorption plate 3 adsorbs and treats the VOCs organic waste gas. The exhaust fan 17 accelerates the flow of exhaust gas. When the activated carbon adsorption plate 3 reaches saturation after adsorbing VOCs organic waste gas for a certain period of time and its adsorption capacity decreases, the first control valve 14 closes the first inlet pipe 5, allowing the third inlet pipe to open. Pipe 22 delivers fresh air from outside to the interior of the fresh air heat exchanger 7. After being heated to a predetermined value, the air enters the carbon box 1 through the second air inlet pipe 6 to purge the high-concentration VOCs organic waste gas that has undergone desorption treatment. At the same time, the gas collection pipe 9 and the gas collection hood 8 transport the VOCs organic waste gas into the combustion furnace 11 through the fan 10. After catalytic combustion, the VOCs organic waste gas is decomposed into carbon dioxide and water vapor. Finally, it is transported to the fresh air heat exchanger 7 through the connecting pipe 12 for heat exchange and cooling. The exhaust pipe 24 discharges the gas inside the fresh air heat exchanger 7 after it has reached the cooling standard. The second plug 25 prevents external dust from entering when the system is not in use and prevents pipe blockage.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A VOCs organic waste gas treatment device, comprising a carbon box (1), characterized in that: Both sides of the inner side of the charcoal box (1) are fixedly connected to the card holder (2), and the inside of the card holder (2) is fixedly connected to the activated carbon adsorption plate (3). The bottom of the inner side of the charcoal box (1) is fixedly connected to the conveying pipe (4). One end of the conveying pipe (4) is fixedly connected to the first air inlet pipe (5), and the other end of the conveying pipe (4) is fixedly connected to the second air inlet pipe (6). One end of the second air inlet pipe (6) is fixedly connected to the fresh air heat exchanger (7). The back of the charcoal box (1) is fixedly connected to the gas collecting hood (8). The outer surface of the gas collecting hood (8) is fixedly connected to the gas collecting pipe (9). One end of the gas collecting pipe (9) is fixedly connected to the fan (10). One end of the fan (10) is fixedly connected to the combustion furnace (11). The top of the outer surface of the combustion furnace (11) is fixedly connected to the connecting pipe (12). The connecting pipe (12) is fixedly connected to the fresh air heat exchanger (7).

2. The VOCs organic waste gas treatment device according to claim 1, characterized in that: The upper surface of the conveying pipe (4) is provided with aeration holes (13), and the number of aeration holes (13) is several.

3. The VOCs organic waste gas treatment device according to claim 1, characterized in that: A first control valve (14) is fixedly connected to the outer surface of the first air intake pipe (5), and a second control valve (15) is fixedly connected to the outer surface of the second air intake pipe (6).

4. The VOCs organic waste gas treatment device according to claim 1, characterized in that: A support plate (16) is fixedly connected to the top of the inner side of the charcoal box (1), and an exhaust fan (17) is fixedly connected to the lower surface of the support plate (16).

5. The VOCs organic waste gas treatment device according to claim 1, characterized in that: The upper surface of the charcoal box (1) is fitted with a dustproof plate (18), and handles (19) are fixedly connected to both sides of the upper surface of the dustproof plate (18).

6. The VOCs organic waste gas treatment device according to claim 1, characterized in that: A fixing block (20) is fixedly connected to the top of the outer surface of the carbon box (1), and a pressure block (21) is rotatably connected to the outer surface of the fixing block (20).

7. The VOCs organic waste gas treatment device according to claim 1, characterized in that: The front of the fresh air heat exchanger (7) is fixedly connected to a third air inlet pipe (22), and a first plug (23) is fitted at one end of the third air inlet pipe (22).

8. The VOCs organic waste gas treatment device according to claim 1, characterized in that: An exhaust pipe (24) is fixedly connected to the upper surface of the fresh air heat exchanger (7), and a second plug (25) is fitted at one end of the exhaust pipe (24).

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