Industrial tail gas VOC adsorption device

Abstract

The utility model discloses an industrial tail gas VOC adsorption device, which relates to the technical field of industrial tail gas treatment equipment, including a tail gas cooling mechanism, a VOC adsorption mechanism is arranged on the front side of the tail gas cooling mechanism, the tail gas cooling mechanism includes a cooling box, a partition is fixedly installed in the middle of the front side of the inner wall of the cooling box, an air inlet is fixedly connected to the front side of the top of the cooling box, an air outlet pipe is fixedly connected to the lower front side of the cooling box, a fixed bracket is fixedly installed at the bottom of the cooling box, and the inner cavity of the cooling box is provided with upper and lower rows of cooling mechanisms, the cooling mechanisms are located on the upper and lower sides of the partition, and a circulation mechanism is fixedly installed on the top rear side of the cooling box. The utility model can effectively cool down the tail gas before adsorption through the mutual cooperation between the cooling box, the partition, the cooling mechanism, the circulation mechanism, and the heat dissipation mechanism, so as to avoid the overheating of the tail gas through the activated carbon, thereby improving the service life of the activated carbon adsorption material.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial tail gas treatment equipment, in particular to an industrial tail gas VOC adsorption device. Background Art

[0002] VOC is a volatile organic compound. When the concentration of VOC exceeds a certain level, people will feel headache, nausea, vomiting, and weakness in their limbs in a short period of time. If they do not leave the scene in time, they will feel the above symptoms aggravated. In severe cases, they will have convulsions, coma, and memory loss. The industrial waste gas emitted by chemical plants, steel plants, pharmaceutical plants, coking plants, and refineries has a strong odor and contains VOC in the exhaust gas. Therefore, it is necessary to filter the VOC in the exhaust gas when the industrial exhaust gas is discharged. The existing technology has the following problems:

[0003] Because the industrial exhaust VOC adsorption devices used in the existing VOC adsorption method mostly adopt an adsorption tank design, which uses a large amount of activated carbon material inside to adsorb VOC substances in industrial exhaust gas to achieve the effect of purifying exhaust gas. However, since the temperature of industrial exhaust gas is generally high, and the activated carbon material is exposed to high temperature for a long time, the pore size and porosity of the activated carbon will increase, and the specific surface area will decrease, resulting in a decrease in adsorption performance, thereby affecting the purity and adsorption capacity of the activated carbon, so that the activated carbon in the adsorption tank has a weakened adsorption capacity for VOCs in the exhaust gas and a reduced service life. Utility Model Content

[0004] The utility model provides an industrial tail gas VOC adsorption device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An industrial tail gas VOC adsorption device comprises a tail gas cooling mechanism, a VOC adsorption mechanism is arranged on the front side of the tail gas cooling mechanism, the tail gas cooling mechanism comprises a cooling box, a partition is fixedly installed on the middle part of the front side of the inner wall of the cooling box, an air inlet is fixedly connected to the front side of the top of the cooling box, an air outlet pipe is fixedly connected to the lower front side of the cooling box, a fixed bracket is fixedly installed on the bottom of the cooling box, an inner cavity of the cooling box is provided with upper and lower rows of cooling mechanisms, the cooling mechanisms are located on the upper and lower sides of the partition, a circulation mechanism is fixedly installed on the top rear side of the cooling box, and a heat dissipation mechanism is arranged on the top of the circulation mechanism.

[0007] A further improvement of the technical solution of the utility model is that the cooling mechanisms in the upper and lower rows each include four hollow heat sinks, each of the hollow heat sinks is provided with three wind tunnels passing through the front and rear, a connecting pipe is fixedly connected between the opposite surfaces of two adjacent hollow heat sinks, and a U-shaped connecting pipe is fixedly connected between the hollow heat sink at the rear side of the upper row and the hollow heat sink at the rear side of the lower row.

[0008] A further improvement of the technical solution of the utility model is that: the circulation mechanism includes a liquid pump, the input end of the liquid pump is fixedly connected to a liquid pumping tube, the bottom end of the liquid pumping tube passes through the inner cavity of the cooling box and is fixedly connected to the top of the frontmost hollow heat sink box in the upper row, the output end of the liquid pump is fixedly connected to a metal liquid storage box, the metal liquid storage box is fixedly connected to the top of the cooling box, the top of the metal liquid storage box is fixedly equipped with cooling fins, the rear side of the metal liquid storage box is fixedly connected to a liquid return pipe, the output end of the liquid return pipe passes through the lower inner cavity of the cooling box and is fixedly connected to the bottom of the frontmost hollow heat sink box in the lower row.

[0009] A further improvement of the technical solution of the utility model is that the heat dissipation mechanism includes four support seats, the four support seats are fixedly connected to the top of the cooling box, and air outlet plates are fixedly installed on the opposite surfaces of the two support seats on the front and rear sides. The air outlet plates are located above the heat dissipation fins, and the rectangular array of the air outlet plates is provided with six air holes that pass through the upper and lower parts, and the inner cavities of the six air holes are all provided with exhaust fans.

[0010] A further improvement of the technical solution of the utility model is that: the VOC adsorption mechanism includes an adsorption tank, the front end of the outlet pipe is fixedly connected to the rear side of the adsorption tank, an activated carbon adsorption mechanism is arranged on the rear side of the inner cavity of the adsorption tank, an air outlet is fixedly connected to the top front side of the adsorption tank, a threaded sealing cover is threadedly installed on the front side of the inner circle of the adsorption tank, and a disassembly handle is fixedly installed at the center of the front circle of the threaded sealing cover.

[0011] A further improvement of the technical solution of the utility model lies in that: the activated carbon adsorption mechanism includes a long air outlet tube, the inner circle of the long air outlet tube is fixedly connected with the air outlet pipe, the outer wall of the long air outlet tube is evenly provided with a plurality of air outlet holes that penetrate into the inner cavity, the outer wall of the long air outlet tube is sleeved with an activated carbon sleeve, the front side of the long air outlet tube is fixedly connected with a threaded mounting ring, the inner circle of the threaded mounting ring is threadedly installed with a mounting column, the front side of the outer wall of the mounting column is fixedly installed with a bearing, the front end of the mounting column is fixedly installed with a rotating handle, the outer wall of the bearing is fixedly installed with a circular baffle, the circular baffle ring annular array is provided with four air outlet holes that penetrate front and back, and the rear side of the circular baffle overlaps with the front side of the activated carbon sleeve.

[0012] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0013] The utility model provides an industrial tail gas VOC adsorption device, which can effectively cool the tail gas before adsorption through the cooperation between a cooling box, a partition, a cooling mechanism, a circulation mechanism and a heat dissipation mechanism, so as to avoid overheating of the tail gas through the activated carbon, thereby increasing the service life of the activated carbon adsorption material.

[0014] The utility model provides an industrial tail gas VOC adsorption device, which cooperates with an adsorption tank, a long air outlet pipe, an air outlet hole, an activated carbon sleeve, a circular baffle, a rotating handle, a threaded sealing cover, and a disassembly handle, thereby ensuring the adsorption effect on VOC in the tail gas and facilitating the disassembly of the adsorption tank and the removal and cleaning of the activated carbon sleeve, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of a cooling box of the utility model structure;

[0017] Figure 3 It is a schematic diagram of the cooling mechanism, circulation mechanism and heat dissipation mechanism of the structure of the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of the adsorption tank of the utility model structure;

[0019] Figure 5 This is a schematic diagram of the activated carbon adsorption mechanism of the utility model structure.

[0020] In the figure: 1. exhaust gas cooling mechanism; 11. cooling box; 12. partition; 13. air inlet; 14. air outlet pipe; 15. fixing bracket; 16. cooling mechanism; 161. hollow heat sink; 162. wind tunnel; 163. connecting pipe; 164. U-shaped connecting pipe; 17. circulation mechanism; 171. liquid pump; 172. liquid pump; 173. metal liquid storage box; 174. heat sink fin; 175. liquid return pipe; 18. heat sink; 181. support Seat; 182, air outlet plate; 183, air outlet tunnel; 184, exhaust fan; 2, VOC adsorption mechanism; 21, adsorption tank; 22, activated carbon adsorption mechanism; 221, air outlet long tube; 222, air outlet hole; 223, activated carbon sleeve; 224, threaded mounting ring; 225, bearing; 226, circular baffle; 227, air outlet tunnel; 228, mounting column; 229, rotating handle; 23, air outlet; 24, threaded sealing cover; 25, disassembly handle. DETAILED DESCRIPTION

[0021] To make the technical means, creative features, objectives and effects of the utility model easy to understand

[0022] Understand, the utility model is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 , Figure 2 As shown, the utility model provides an industrial tail gas VOC adsorption device, including a tail gas cooling mechanism 1, a VOC adsorption mechanism 2 is arranged on the front side of the tail gas cooling mechanism 1, the tail gas cooling mechanism 1 includes a cooling box 11, a partition 12 is fixedly installed on the middle of the front side of the inner wall of the cooling box 11, an air inlet 13 is fixedly connected to the front side of the top of the cooling box 11, an air outlet pipe 14 is fixedly connected to the lower front side of the cooling box 11, a fixed bracket 15 is fixedly installed at the bottom of the cooling box 11, and an upper and lower row of cooling mechanisms 16 are arranged in the inner cavity of the cooling box 11, and the cooling mechanisms 16 are located on the upper and lower sides of the partition 12, a circulation mechanism 17 is fixedly installed on the top rear side of the cooling box 11, and a heat dissipation mechanism 18 is arranged on the top of the circulation mechanism 17;

[0024] When it is necessary to adsorb VOC in industrial exhaust gas, the exhaust gas is first injected into the inner cavity of the cooling box 11 by directly connecting the exhaust gas to the air inlet 13. After the exhaust gas passes through the upper cooling mechanism 16 above the partition 12 and is cooled, it will move to the rear side of the inner cavity of the cooling box 11, and then pass through the lower cooling mechanism 16 below the partition 12 for secondary cooling, and finally be discharged from the outlet pipe 14. The circulation mechanism 17 can circulate the coolant contained in the heat-generating cooling mechanism 16, and use the heat dissipation mechanism 18 to dissipate the heat before re-discharging into the cooling mechanism 16.

[0025] like Figure 3As shown, the upper and lower rows of cooling mechanisms 16 each include four hollow heat sinks 161, each of the hollow heat sinks 161 is provided with three wind tunnels 162 that pass through the front and back, a connecting pipe 163 is fixedly connected between the opposite surfaces of two adjacent hollow heat sinks 161, a U-shaped connecting pipe 164 is fixedly connected between the upper row rear hollow heat sink 161 and the lower row rear hollow heat sink 161, the circulation mechanism 17 includes a liquid pump 171, the input end of the liquid pump 171 is fixedly connected to a liquid pumping pipe 172, the bottom end of the liquid pumping pipe 172 passes through the inner cavity of the cooling box 11 and is fixedly connected to the top of the upper row front hollow heat sink 161, the output end of the liquid pump 171 is fixedly connected to a metal liquid storage box 173, the metal liquid storage box 173 is connected to the cooling box 11, and the cooling box 11 is connected to the upper row rear hollow heat sink 161. The top of the cooling box 11 is fixedly connected, the top of the metal liquid storage box 173 is fixedly installed with a heat dissipation fin 174, the rear side of the metal liquid storage box 173 is fixedly connected with a liquid return pipe 175, the output end of the liquid return pipe 175 passes through the lower inner cavity of the cooling box 11 and is fixedly connected to the bottom of the frontmost hollow heat dissipation box 161 in the lower row, and the heat dissipation mechanism 18 includes four support seats 181, and the four support seats 181 are all fixedly connected to the top of the cooling box 11, and the opposite surfaces of the two support seats 181 on the front and rear sides are fixedly installed with an air outlet plate 182, which is located above the heat dissipation fin 174, and the air outlet plate 182 is provided with six air holes 183 that pass through from top to bottom in a rectangular array, and the inner cavities of the six air holes 183 are all provided with exhaust fans 184;

[0026] The hollow heat sinks 161 included in the upper and lower rows of cooling mechanisms 16 are filled with coolant, and the outer walls are made of heat-conducting metal materials. When the exhaust gas passes through the hollow heat sink 161, it passes through the wind tunnel 162, thereby achieving the effect of cooling the exhaust gas. The coolant can be circulated between the hollow heat sinks 161 using the connecting pipe 163 and the U-shaped connecting pipe 164. At the same time, by starting the liquid pump 171, the coolant in the hollow heat sink 161 can be extracted using the liquid extraction pipe 172 and discharged into the larger area. The heat is dissipated from the large metal liquid storage box 173 through the heat dissipation fins 174, and then the heat is quickly discharged through the exhaust fan 184 in the air hole 183 opened in the air outlet plate 182. The cooled liquid can be re-injected into the inner cavity of the lower hollow heat dissipation box 161 through the return pipe 175, and circulated in all the hollow heat dissipation boxes 161 by using the connecting pipe 163 and the U-shaped connecting pipe 164, so as to avoid the coolant temperature being too high and affecting the cooling effect on the exhaust gas.

[0027] like Figure 4 , Figure 5As shown, the VOC adsorption mechanism 2 includes an adsorption tank 21, the front end of the outlet pipe 14 is fixedly connected to the rear side of the adsorption tank 21, an activated carbon adsorption mechanism 22 is arranged on the rear side of the inner cavity of the adsorption tank 21, an air outlet 23 is fixedly connected to the top front side of the adsorption tank 21, a threaded sealing cover 24 is threadedly installed on the front side of the inner ring of the adsorption tank 21, and a disassembly handle 25 is fixedly installed at the center of the front side of the threaded sealing cover 24, and the activated carbon adsorption mechanism 22 includes an air outlet long tube 221, the inner ring of the air outlet long tube 221 is fixedly connected to the air outlet pipe 14, and the outer wall of the air outlet long tube 221 is evenly provided with a plurality of through holes. To the air outlet 222 of the inner cavity, the outer wall of the long air outlet tube 221 is sleeved with an activated carbon sleeve 223, the front side of the long air outlet tube 221 is fixedly connected with a threaded mounting ring 224, the inner circle of the threaded mounting ring 224 is threadedly mounted with a mounting column 228, the front side of the outer wall of the mounting column 228 is fixedly mounted with a bearing 225, the front end of the mounting column 228 is fixedly mounted with a rotating handle 229, the outer wall of the bearing 225 is fixedly mounted with a circular baffle 226, the circular baffle 226 is annularly arrayed with four air outlet holes 227 that are connected front and back, and the rear side of the circular baffle 226 overlaps with the front side of the activated carbon sleeve 223;

[0028] The cooled exhaust gas can be discharged into the inner cavity of the long air outlet pipe 221 in the adsorption tank 21 through the exhaust pipe 14, and discharged to the activated carbon sleeve 223 through a plurality of air outlet holes 222 opened on the outer wall thereof. The exhaust gas can effectively adsorb the VOC in the exhaust gas through the surrounding activated carbon sleeve 223, and then be discharged into the front side of the inner cavity of the adsorption tank 21 through the air outlet hole 227 opened by the circular baffle 226 on the front side of the activated carbon sleeve 223, and finally the exhaust gas adsorbed with VOC is discharged into the air outlet 23. When the activated carbon sleeve 223 needs to be activated, the activated carbon sleeve 223 is activated. When replacing and cleaning, the threaded sealing cover 24 can be first separated and disassembled from the adsorption tank 21 by rotating the disassembly handle 25, and then the rotating handle 229 can be rotated to drive the mounting column 228 to rotate, thereby gradually disassembling and separating it from the inner ring of the threaded mounting ring 224, and at the same time, the circular baffle 226 on the outer wall of the bearing 225 can be gradually moved forward. When the front threaded wall of the mounting column 228 is completely separated from the inner ring of the threaded mounting ring 224, the circular baffle 226 can be directly pulled out, thereby exposing the activated carbon sleeve 223, which is convenient for direct removal and cleaning.

[0029] The following is a detailed description of the working principle of the industrial exhaust VOC adsorption device.

[0030] like Figure 1-5As shown, when it is necessary to adsorb VOC in industrial tail gas, the tail gas is first directly connected to the air inlet 13 and injected into the inner cavity of the cooling box 11. After the tail gas passes through the upper cooling mechanism 16 above the partition 12 and is cooled, it moves to the rear side of the inner cavity of the cooling box 11, and then passes through the lower cooling mechanism 16 below the partition 12 for secondary cooling, and finally is discharged from the outlet pipe 14. The hollow heat sink 161 contained in the upper and lower cooling mechanisms 16 is filled with coolant, and the outer wall is made of heat-conducting metal material. When the tail gas passes through the hollow heat sink 161, it passes through the wind tunnel 162, thereby achieving the purpose of reducing the tail gas. The cooling liquid in the hollow heat sink 161 can be circulated by connecting pipe 163 and U-shaped connecting pipe 164. At the same time, by starting the liquid pump 171, the cooling liquid in the hollow heat sink 161 can be extracted by using the liquid pump 172 and discharged into the inner cavity of the metal liquid storage box 173 with a larger area. The heat derived from the metal liquid storage box 173 is then dissipated through the heat dissipation fins 174. The heat can then be quickly discharged through the exhaust fan 184 in the air hole 183 opened in the air outlet plate 182. The cooled liquid can be re-injected into the inner cavity of the lower hollow heat sink 161 through the return pipe 175. , and use the connecting pipe 163 and the U-shaped connecting pipe 164 to circulate in all hollow heat dissipation boxes 161, so as to avoid the temperature of the coolant being too high and affecting the cooling effect of the exhaust gas. The cooled exhaust gas can be discharged into the inner cavity of the long air outlet pipe 221 in the adsorption tank 21 through the outlet pipe 14, and discharged to the activated carbon sleeve 223 through a plurality of air outlet holes 222 opened on its outer wall. The exhaust gas can effectively adsorb the VOC in the exhaust gas through the surrounding activated carbon sleeve 223, and then be discharged into the front side of the inner cavity of the adsorption tank 21 through the air outlet hole 227 opened on the circular baffle 226 on the front side of the activated carbon sleeve 223, and finally through the outlet air. The exhaust gas that has adsorbed VOC is discharged through the port 23. When the activated carbon sleeve 223 needs to be replaced and cleaned, the threaded sealing cover 24 can be separated and disassembled from the adsorption tank 21 by rotating the disassembly handle 25 first, and then the rotating handle 229 can be rotated to drive the mounting column 228 to rotate, thereby gradually disassembling and separating it from the inner ring of the threaded mounting ring 224. At the same time, the circular baffle 226 on the outer wall of the bearing 225 can be gradually moved forward. When the front threaded wall of the mounting column 228 is completely separated from the inner ring of the threaded mounting ring 224, the circular baffle 226 can be directly pulled out to expose the activated carbon sleeve 223, which is convenient for direct removal and cleaning.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An industrial tail gas VOC adsorption device, comprising a tail gas cooling mechanism (1), characterized in that: A VOC adsorption mechanism (2) is arranged at the front side of the exhaust gas cooling mechanism (1), and the exhaust gas cooling mechanism (1) comprises a cooling box (11), a partition (12) is fixedly installed at the middle of the front side of the inner wall of the cooling box (11), an air inlet (13) is fixedly connected to the front side of the top of the cooling box (11), an air outlet pipe (14) is fixedly connected to the lower part of the front side of the cooling box (11), a fixing bracket (15) is fixedly installed at the bottom of the cooling box (11), and the inner cavity of the cooling box (11) is provided with upper and lower rows of cooling mechanisms (16), and the cooling mechanisms (16) are located at the upper and lower sides of the partition (12), and a circulation mechanism (17) is fixedly installed at the rear side of the top of the cooling box (11), and a heat dissipation mechanism (18) is arranged at the top of the circulation mechanism (17).

2. The industrial tail gas VOC adsorption device according to claim 1, characterized in that: The cooling mechanisms (16) in the upper and lower rows each include four hollow heat dissipation boxes (161), each of the hollow heat dissipation boxes (161) is provided with three wind tunnels (162) that pass through the front and rear, a connecting pipe (163) is fixedly connected between the opposite surfaces of two adjacent hollow heat dissipation boxes (161), and a U-shaped connecting pipe (164) is fixedly connected between the hollow heat dissipation boxes (161) at the rear side of the upper row and the hollow heat dissipation boxes (161) at the rear side of the lower row.

3. The industrial tail gas VOC adsorption device according to claim 2 is characterized in that: The circulation mechanism (17) comprises a liquid pump (171), the input end of the liquid pump (171) is fixedly connected to a liquid pumping tube (172), the bottom end of the liquid pumping tube (172) penetrates into the inner cavity of the cooling box (11) and is fixedly connected to the top of the frontmost hollow heat sink box (161) in the upper row, the output end of the liquid pump (171) is fixedly connected to a metal liquid storage box (173), the metal liquid storage box (173) is fixedly connected to the top of the cooling box (11), a heat sink fin (174) is fixedly mounted on the top of the metal liquid storage box (173), the rear side of the metal liquid storage box (173) is fixedly connected to a liquid return tube (175), the output end of the liquid return tube (175) penetrates into the lower inner cavity of the cooling box (11) and is fixedly connected to the bottom of the frontmost hollow heat sink box (161) in the lower row.

4. The industrial tail gas VOC adsorption device according to claim 3 is characterized by: The heat dissipation mechanism (18) comprises four support seats (181), the four support seats (181) are fixedly connected to the top of the cooling box (11), and air outlet plates (182) are fixedly installed on the opposite surfaces of the two support seats (181) on the front and rear sides, and the air outlet plates (182) are located above the heat dissipation fins (174). The air outlet plates (182) are provided with six air holes (183) that pass through from top to bottom in a rectangular array, and the inner cavities of the six air holes (183) are provided with exhaust fans (184).

5. The industrial tail gas VOC adsorption device according to claim 1, characterized in that: The VOC adsorption mechanism (2) comprises an adsorption tank (21), the front end of the air outlet pipe (14) is fixedly connected to the rear side of the adsorption tank (21), an activated carbon adsorption mechanism (22) is arranged at the rear side of the inner cavity of the adsorption tank (21), an air outlet (23) is fixedly connected to the front side of the top of the adsorption tank (21), a threaded sealing cover (24) is threadedly installed on the front side of the inner circle of the adsorption tank (21), and a disassembly handle (25) is fixedly installed at the center of the front circle of the threaded sealing cover (24).

6. The industrial tail gas VOC adsorption device according to claim 5, characterized in that: The activated carbon adsorption mechanism (22) comprises a long air outlet tube (221), the inner ring of the long air outlet tube (221) is connected to the air outlet pipe (14) through a fixed connection, the outer wall of the long air outlet tube (221) is evenly provided with a plurality of air outlet holes (222) that pass through the inner cavity, the outer wall of the long air outlet tube (221) is sleeved with an activated carbon sleeve (223), the front side of the long air outlet tube (221) is fixedly connected with a threaded mounting ring (224), and the threaded mounting ring (224) is A mounting column (228) is installed on the inner thread, a bearing (225) is fixedly installed on the front side of the outer wall of the mounting column (228), a rotating handle (229) is fixedly installed on the front end of the mounting column (228), a circular baffle (226) is fixedly installed on the outer wall of the bearing (225), and four front-to-back through-wind holes (227) are formed in a circular array on the circular baffle (226), and the rear side of the circular baffle (226) overlaps the front side of the activated carbon sleeve (223).

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