VOC purification equipment integrating plasma and activated carbon

Abstract

This utility model relates to the field of VOC purification technology and discloses a VOC purification device integrating plasma and activated carbon. The device includes a shell, with a frame fixedly connected inside. Adsorption boxes are slidably connected to the inner walls of two frames. Filter plates are fixedly connected to the top of the outer walls of multiple adsorption boxes. Adsorbent carbon is fixedly connected inside each adsorption box. A connecting pipe connects to the left side of the outer wall of the shell, and a plasma box connects to the left side of the outer wall of the connecting pipe. An electrical box is fixedly connected inside the plasma box, and conductive columns are fixedly connected inside two electrical boxes. Aluminum sheets are fixedly connected to the outer walls of multiple conductive columns. In this utility model, waste gas first passes through the filter plates on the adsorption boxes to filter out impurities that cannot be adsorbed. Then, it enters the adsorption boxes and is adsorbed by the adsorbent carbon. Because large molecules in the waste gas have been decomposed, the adsorption efficiency is improved, and the removal rate increases.

Description

Technical Field

[0001] This utility model relates to the field of VOC purification technology, and in particular to a VOC purification device integrating plasma and activated carbon. Background Technology

[0002] VOCs are important precursors to PM2.5 and ozone pollution, with a wide range of sources, including petrochemical, coating, printing, and electronics manufacturing industries. According to statistics from the Ministry of Ecology and Environment, my country's annual industrial VOC emissions exceed 20 million tons. The resulting photochemical smog and haze not only threaten human respiratory and nervous system health but also exacerbate global climate change. Integrated plasma technology, based on high-voltage discharge, generates high-energy active particles that degrade VOCs through physical and chemical reactions. Activated carbon purification equipment utilizes the adsorption properties of activated carbon to remove VOCs. Activated carbon has a rich microporous structure and captures VOC molecules in waste gas through physical and chemical adsorption.

[0003] However, when plasma technology and activated carbon technology are used alone, NO byproducts are easily generated when treating high-concentration VOCs, and energy consumption is high. Activated carbon also requires frequent filter replacement for treating large volumes of waste gas, resulting in high operating costs. At the same time, the increased adsorption efficiency of activated carbon during adsorption makes it highly susceptible to spontaneous combustion, posing a safety hazard. High-voltage discharge may trigger the deflagration of flammable VOCs. Currently, clean air is introduced in proportion through a fresh air mixing system before the waste gas enters the purification equipment to dilute the VOC concentration to the lower explosive limit. However, this technology is ineffective when used for the single purification of VOCs. Furthermore, the high VOC concentration and increased adsorption efficiency pose a risk of spontaneous combustion. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a VOC purification device that integrates plasma and activated carbon, aiming to improve the poor effect of plasma technology and activated carbon technology when purifying VOCs alone in the prior art, and the problem that activated carbon will spontaneously combust when the VOC concentration is too high and the adsorption is increased.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a VOC purification device integrating plasma and activated carbon, comprising a shell, a frame fixedly connected inside the shell, adsorption boxes slidably connected to the inner walls of two frames, filter plates fixedly connected to the top of the outer walls of multiple adsorption boxes, adsorbent carbon fixedly connected inside each adsorption box, a connecting pipe connected to the left side of the outer wall of the shell, a plasma box connected to the left side of the outer wall of the connecting pipe, an electrical box fixedly connected inside the plasma box, conductive columns fixedly connected inside the two electrical boxes, aluminum sheets fixedly connected to the outer walls of multiple conductive columns, a discharge column fixedly connected to the front side of the outer wall of the electrical box, and a spraying mechanism fixedly connected to the rear side of the outer wall of the shell, the spraying mechanism being used to spray the interior of the shell.

[0006] As a further description of the above technical solution:

[0007] The spraying mechanism includes a water tank, a water pump fixedly connected inside the water tank, a transmission pipe fixedly connected to the output end of the water pump, an output pipe connected to the outer wall of the transmission pipe, and a nozzle connected to the bottom of each of the multiple output pipes. A circulation pump is fixedly connected inside the outer shell, a delivery pipe connected to the output end of the circulation pump, and a valve fixedly connected to the outer wall of each output pipe.

[0008] As a further description of the above technical solution:

[0009] The plasma chamber has a mounting groove on the front side of its outer wall, and a power controller is fixedly connected to the inner wall of the mounting groove.

[0010] As a further description of the above technical solution:

[0011] A rotating door is rotatably connected to the front side of the outer wall of the outer shell, and a water injection pipe is connected to the rear side of the outer wall of the water tank.

[0012] As a further description of the above technical solution:

[0013] A rotating shaft is fixedly connected to the right side of the outer wall of each of the two rotating doors, and the outer walls of the multiple rotating shafts are rotatably connected to the outer shell. A handle is fixedly connected to the front side of the outer wall of each rotating door.

[0014] As a further description of the above technical solution:

[0015] The outer rear side of the rotating door is fixedly connected with a rubber sleeve, and the outer front side of the adsorption box is fixedly connected with a fixing plate.

[0016] As a further description of the above technical solution:

[0017] Each of the aforementioned fixing plates has a handle two fixedly connected to its outer front side, and each of the fixing plates has a screw threadedly connected to its outer front side.

[0018] As a further description of the above technical solution:

[0019] A suction pipe is connected to the left side of the outer wall of the plasma box, and a valve is fixedly connected to the outer wall of the suction pipe.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the waste gas first passes through the discharge column in the plasma box, which generates high-voltage electrons to decompose the large molecules in the waste gas. Then, it enters the outer shell along the connecting pipe and passes through the adsorption box on the inner frame of the outer shell. The waste gas first passes through the filter plate on the adsorption box to filter out the impurities that cannot be adsorbed, and then enters the adsorption box. The adsorption carbon adsorbs the impurities. Since the large molecules in the waste gas have been decomposed, the adsorption efficiency is improved and the removal rate increases.

[0022] 2. In this utility model, the water pump in the water tank is first started, and the water is transported along the transmission pipe to multiple output pipes. Then, the self-igniting adsorbent carbon is sprayed through the nozzle, and the inside of the outer shell can also be cleaned at the same time. Then, the circulation pump in the outer shell is started, and the water accumulated inside the outer shell is transported back to the water tank along the transmission pipe to complete the circulation and save costs. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the VOC purification device integrating plasma and activated carbon proposed in this utility model.

[0024] Figure 2 This is a rear perspective view of the VOC purification device integrating plasma and activated carbon proposed in this utility model.

[0025] Figure 3 This is a partial top view of the water tank of the VOC purification device integrating plasma and activated carbon proposed in this utility model;

[0026] Figure 4 This is a partial view of the frame of the VOC purification device integrating plasma and activated carbon proposed in this utility model;

[0027] Figure 5 This is a partial view of the filter plate of the VOC purification device integrating plasma and activated carbon proposed in this utility model.

[0028] Figure 6 This is a side view of the plasma chamber of the VOC purification device integrating plasma and activated carbon proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Spraying mechanism; 201. Water tank; 202. Water pump; 203. Transmission pipe; 204. Output pipe; 205. Nozzle; 206. Valve 1; 207. Circulation pump; 208. Delivery pipe; 3. Frame; 4. Adsorption box; 5. Filter plate; 6. Adsorbent carbon; 7. Connecting pipe; 8. Plasma box; 9. Electrical box; 10. Conductive column; 11. Aluminum sheet; 12. Discharge column; 13. Power controller; 14. Rotating door; 15. Rotating shaft; 16. Handle 1; 17. Fixing plate; 18. Handle 2; 19. Rubber sleeve; 20. Water injection pipe; 21. Air suction pipe; 22. Valve 2; 23. Screw; 24. Mounting slot. Detailed Implementation

[0031] 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.

[0032] Please see the appendix Figure 4 - Appendix Figure 6 This utility model provides an embodiment of a VOC purification device integrating plasma and activated carbon, comprising a housing 1, a frame structure 3 fixedly connected within the internal space of the housing 1, and adsorption boxes 4 slidably connected to the inner walls of two frames 3 to ensure that the adsorption boxes 4 can move within the frames 3. Filter plates 5 are firmly fixedly connected to the top of the outer walls of multiple adsorption boxes 4 for filtering impurities in the exhaust gas that cannot be adsorbed. Adsorption carbon 6 is fixedly connected to the internal space of each adsorption box 4 for adsorbing harmful substances in the exhaust gas. The outer wall of the housing 1 is located on the left side... The side is connected to a connecting pipe 7, and the outer left side of the connecting pipe 7 is connected to a plasma box 8. The internal space of the plasma box 8 is fixedly connected to an electrical box 9. The interior of both electrical boxes 9 is fixedly connected to conductive columns 10. These conductive columns 10 are used to conduct current. The outer walls of multiple conductive columns 10 are fixedly connected to aluminum sheets 11. The aluminum sheets 11 are used to enhance the plasma generation effect. The front side of the outer wall of the electrical box 9 is fixedly connected to a discharge column 12. The discharge column 12 is used to generate plasma. The rear side of the outer wall of the outer shell 1 is fixedly connected to a spraying mechanism 2. The spraying mechanism 2 is used to spray the interior of the outer shell 1.

[0033] Specifically, a frame structure 3 is fixed inside the outer shell 1. An adsorption box 4 is slidably connected to the inner wall of the frame 3 to facilitate the movement of the adsorption box 4. A filter plate 5 is fixed to the top of the outer wall of the adsorption box 4 to filter impurities in the exhaust gas that cannot be adsorbed. Adsorbent carbon 6 is fixed inside the filter plate 5 to adsorb harmful substances in the exhaust gas. A connecting pipe 7 is connected to the left side of the outer wall of the outer shell 1, and a plasma box 8 is connected to the left side of the connecting pipe 7. An electrical box 9 is fixed inside the plasma box 8. A conductive column 10 conducts current inside the electrical box 9. An aluminum sheet 11 is fixed to its outer wall to enhance the plasma generation effect. A discharge column 12 is fixed to the front of the electrical box 9 to generate plasma. A spraying mechanism 2 is fixed to the rear of the outer shell 1 for spraying the interior of the outer shell 1.

[0034] Please see the appendix Figure 3 - Appendix Figure 4 The spraying mechanism 2 includes a water tank 201. A water pump 202 is fixedly installed inside the water tank 201. The output end of the water pump 202 is connected to the transmission pipe 203. The outer wall of the transmission pipe 203 is connected to an output pipe 204. The output pipe 204 is not a single pipe, but multiple output pipes 204 are arranged in parallel. The bottom of each output pipe 204 is connected to multiple nozzles 205. These nozzles 205 are responsible for spraying water evenly. A circulation pump 207 is fixedly connected inside the outer shell 1 to extract the water accumulated in the outer shell 1 and transport it along the transmission pipe 208. The output end of the circulation pump 207 is connected to the transmission pipe 208 and connected to the water tank 201 to transport water into the water tank 201. Valves 206 are fixedly connected to the outer wall of the output pipes 204 to control the spraying of the output pipes 204.

[0035] Specifically, the spraying mechanism 2 includes a water tank 201, inside which a water pump 202 is fixedly installed. The output end of the water pump 202 is firmly connected to a transmission pipe 203. The outer wall of the transmission pipe 203 is connected to multiple parallel output pipes 204. The bottom of each output pipe 204 is connected to multiple nozzles 205 for uniformly spraying water. A circulation pump 207 is fixed inside the outer shell 1, which can extract the water accumulated inside the outer shell 1 and transport it along the transmission pipe 208. The output end of the circulation pump 207 is connected to the transmission pipe 208 and connected to the water tank 201 to transport the water back to the water tank 201, realizing the recycling of water. A valve 206 is fixed on the outer wall of the output pipe 204 for controlling the spraying of the output pipe 204.

[0036] Please see the appendix Figure 1 - Appendix Figure 2The plasma box 8 has a mounting groove 24 on the front side of its outer wall. Two power controllers 13 are fixedly connected to the inner wall of the mounting groove 24. The power controllers 13 are responsible for the power supply and control of the plasma box 8. Two rotating doors 14 are fixedly connected to the front side of the outer wall of the outer shell 1 to facilitate convenient maintenance of the interior of the outer shell 1 by the operator. A water injection pipe 20 is connected to the rear side of the outer wall of the water tank 201 to inject water into the water tank 201 to ensure the normal operation of the water tank 201. Multiple rotating shafts 15 are fixedly connected to the right side of the outer wall of each of the two rotating doors 14. The outer walls of these rotating shafts 15 are rotatably connected to the outer shell 1 to ensure that the rotating doors 14 can be opened and closed flexibly. A handle 16 is fixedly connected to the front side of the outer wall of each rotating door 14.

[0037] Specifically, an installation groove 24 is opened on the front side of the outer wall of the plasma box 8, and two power controllers 13 are fixed on its inner wall to be responsible for power supply and control. Two rotating doors 14 are rotatably connected to the front side of the outer wall of the outer shell 1 for easy internal maintenance. The water tank 201 is connected to the water injection pipe 20 on the rear side of its outer wall for water injection. Then, a rotating shaft 15 is rotatably connected to the outer shell 1 on the right side of the outer wall of the rotating door 14, and a handle 16 is fixed on its front side for easy opening.

[0038] Please see the appendix Figure 2 - Appendix Figure 3 Rubber sleeves 19 are firmly fixed to the rear side of the outer wall of the rotating door 14. The rubber sleeves 19 are mainly used to increase the sealing and buffering effect. Fixing plates 17 are firmly fixed to the front side of the outer wall of the adsorption box 4. These fixing plates 17 play a key supporting and fixing role. Handles 2 18 are tightly fixed to the front side of the outer wall of multiple fixing plates 17. Handles 2 18 are convenient for operators to hold and move the equipment. Screws 23 are firmly connected to the front side of the outer wall of the fixing plates 17 by threaded connection. These screws 23 ensure the firmness of the handles 2 18. The plasma box 8 has a suction pipe 21 connected to the left side of its outer wall. The suction pipe 21 is used to transport gas. A valve 22 is also fixedly connected to its outer wall. The function of valve 22 is to control and regulate the gas flow rate.

[0039] Specifically, a rubber sleeve 19 is fixed to the rear side of the outer wall of the rotating door 14 to increase sealing and buffering. Then, a fixing plate 17 is fixed to the front side of the outer wall of the adsorption box 4 for support and fixation. A second handle 18 is fixed to the front side of the fixing plate 17 for easy gripping and movement, and the second handle 18 is secured by a threaded screw 23. The left side of the outer wall of the plasma box 8 is connected to the suction pipe 21 to transmit gas, and a second valve 22 is fixed on it to control and regulate the gas flow.

[0040] Working principle: The waste gas first enters the plasma box 8, and the discharge column 12 transmits electricity to the electrical box 9, causing the conductive column 10 and aluminum sheet 11 on the internal electrical box 9 to generate high-energy electrons, which decompose the large molecules in the waste gas into small molecular fragments. Then the waste gas enters the outer shell 1 along the connecting pipe 7. Since there are two frames 3 installed in the outer shell 1, the adsorption boxes 4 on the two frames 3 are used to adsorb the impurities in the waste gas using the adsorption carbon 6 in the adsorption boxes 4. Because the electrical box 9 decomposes the large molecules of impurities in the waste gas, the efficiency is improved when the adsorption carbon 6 is adsorbed, which improves the removal rate compared to the single adsorption method. At the same time, the filter plate 5 on the adsorption box 4 prevents other impurities in the waste gas from falling into the adsorption box 4. After being removed by the device in the plasma box 8 and the outer shell 1, the purified gas is discharged.

[0041] When the adsorbent carbon 6 in the adsorption box 4 is removing pollutants, it releases adsorption heat during the adsorption process. When the adsorption efficiency is too fast and the waste gas concentration is too high, the adsorbent carbon 6 will spontaneously combust. At this time, simply start the water pump 202 in the water tank 201. The water pump 202 will transport water along the transmission pipe 203 to multiple output pipes 204 connected to the transmission pipe 203. Then, the water will be sprayed out by the nozzles 205 on the output pipes 204 to extinguish the fire in the device inside the outer shell 1. At the same time, the inside can also be cleaned. After the work is completed, the circulation pump 207 in the outer shell 1 can be started to transport the water back to the water tank 201 along the transmission pipe 208, which saves costs and also avoids water stains accumulating inside the outer shell 1, which would affect the operation of the equipment.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A VOC purification apparatus integrating plasma and activated carbon, comprising a housing (1), characterized in that: The shell (1) is fixedly connected to a frame (3), and the inner walls of the two frames (3) are slidably connected to an adsorption box (4). The top of the outer walls of the multiple adsorption boxes (4) are fixedly connected to a filter plate (5). The adsorption boxes (4) are fixedly connected to an adsorption carbon (6). The outer wall of the shell (1) is connected to a connecting pipe (7). The outer wall of the connecting pipe (7) is connected to a plasma box (8). The plasma box (8) is fixedly connected to an electrical box (9). The two electrical boxes (9) are fixedly connected to a conductive column (10). The outer walls of the multiple conductive columns (10) are fixedly connected to an aluminum sheet (11). The front side of the outer wall of the electrical box (9) is fixedly connected to a discharge column (12). The rear side of the outer wall of the shell (1) is fixedly connected to a spraying mechanism (2). The spraying mechanism (2) is used to spray the inside of the shell (1).

2. The integrated plasma and activated carbon VOC abatement apparatus of claim 1, wherein: The spraying mechanism (2) includes a water tank (201), a water pump (202) is fixedly connected inside the water tank (201), a transmission pipe (203) is fixedly connected to the output end of the water pump (202), an output pipe (204) is connected to the outer wall of the transmission pipe (203), and a nozzle (205) is connected to the bottom of each of the multiple output pipes (204). A circulation pump (207) is fixedly connected inside the outer shell (1), a delivery pipe (208) is connected to the output end of the circulation pump (207), and a valve (206) is fixedly connected to the outer wall of each output pipe (204).

3. The integrated plasma and activated carbon VOC abatement apparatus of claim 1, wherein: The plasma box (8) has an installation groove (24) on the front side of its outer wall, and a power controller (13) is fixedly connected to the inner wall of the installation groove (24).

4. The integrated plasma and activated carbon VOC abatement apparatus of claim 2, wherein: A rotating door (14) is rotatably connected to the front side of the outer wall of the outer shell (1), and a water injection pipe (20) is connected to the rear side of the outer wall of the water tank (201).

5. The integrated plasma and activated carbon VOC abatement apparatus of claim 4, wherein: A rotating shaft (15) is fixedly connected to the right side of the outer wall of each of the two rotating doors (14), and the outer walls of the multiple rotating shafts (15) are rotatably connected to the outer shell (1). A handle (16) is fixedly connected to the front side of the outer wall of each of the rotating doors (14).

6. The integrated plasma and activated carbon VOC abatement apparatus of claim 5, wherein: The outer rear side of the rotating door (14) is fixedly connected with a rubber sleeve (19), and the outer front side of the adsorption box (4) is fixedly connected with a fixing plate (17).

7. The integrated plasma and activated carbon VOC abatement apparatus of claim 6, wherein: Each of the fixing plates (17) has a handle (18) fixedly connected to the front side of its outer wall, and each of the fixing plates (17) has a screw (23) threadedly connected to the front side of its outer wall.

8. The integrated plasma and activated carbon VOC abatement apparatus of claim 1, wherein: The plasma box (8) has an air suction pipe (21) connected to the left side of its outer wall, and a valve (22) is fixedly connected to the outer wall of the air suction pipe (21).

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