An air cleaning device for environmental protection

Abstract

The present invention relates to the technical field of waste gas treatment, and specifically relates to an environmental protection air cleaning device, which includes a tower body for treating waste gas. The interior of the tower body is successively an intake chamber, a first spray chamber, a second spray chamber, a first drying chamber, and a second drying chamber from bottom to top. Spray components for spraying waste gas washing liquid are provided inside both the first spray chamber and the second spray chamber. A liquid supply component for supplying waste gas washing liquid to the two spray components is provided on one side of the bottom of the tower body. An air outlet pipe is provided at the top of the second drying chamber; by setting a flow stabilizing component and a linkage component, the effect of adaptive adjustment according to the rising pressure of the gas is achieved, ensuring the flow velocity of the gas, enabling the gas to stably form a swirl inside the second drying chamber, thereby thoroughly centrifuging out the water molecules in the waste gas, and the eddy current generating part will also prompt the gas to form a swirl, thereby separating out part of the water in the gas, effectively improving the treatment standard of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and particularly relates to an environmental protection air cleaning device. Background Art

[0002] In the organic waste gas treatment process, the scrubbing tower is commonly used as a front-end treatment device. It is improved on the basis of a floating packing layer gas purifier and is widely used in the pretreatment of industrial waste gas treatment and dust removal. It has good purification effect and is commonly used in industrial waste gas purification and organic waste gas treatment. It is one of the basic treatment devices in waste gas treatment.

[0003] A scrubbing tower for a semiconductor factory disclosed in Chinese Patent Publication No. CN116139681B reduces the pollution of the environment caused by the waste gas carrying water mist when discharging upward through a demisting component.

[0004] However, compared with the prior art in the related field, most of the existing scrubbing towers use a conventional demisting layer to treat waste gas. They cannot effectively centrifuge out the water molecules in the waste gas through a swirl plate. There is still a large amount of water mist and water molecules in the air outlet, and the treatment standard cannot be effectively achieved, which affects the production efficiency. At the same time, during operation, the gas flow rate will also vary greatly. When the gas flow rate is large, the water molecules in the waste gas cannot be completely centrifuged out. When the gas flow rate is small, the gas cannot form a good swirl, and the water molecules in the waste gas cannot be completely centrifuged out either. Summary of the Invention

[0005] The present invention provides an environmental protection air cleaning device to solve the problems mentioned in the background art.

[0006] The environmental protection air cleaning device of the present invention adopts the following technical solutions: It includes a tower body for treating waste gas. The interior of the tower body is successively an air inlet chamber, a first spraying chamber, a second spraying chamber, a first drying chamber, and a second drying chamber from bottom to top. Spraying components for spraying waste gas washing liquid are provided inside both the first spraying chamber and the second spraying chamber. A liquid supply component for supplying waste gas washing liquid to the two spraying components is provided on one side of the bottom of the tower body. An air outlet pipe is provided at the top of the second drying chamber, and a demisting member is provided inside the second drying chamber; A plurality of flow stabilizing components for controlling the pressure of the rising gas are provided inside the first drying chamber. When the pressure of the rising gas is small, the gas is gathered and accelerated to flow, ensuring that the gas can form a good swirl inside the second drying chamber, and then completely centrifuging out the water molecules in the waste gas.

[0007] Further, the flow stabilizing component includes a lower pipe and an upper pipe. The lower pipe and the upper pipe are connected through a constricted pipe section. An eddy current generating member is slidably provided inside the lower pipe. A plurality of pressing members are fitted to the middle position of the outer surface of the constricted pipe section. The eddy current generating member and the plurality of pressing members are cooperatively connected through a linkage component.

[0008] Further, mounting plates are fixedly installed at the positions corresponding to the upper section pipes and the lower section pipes in the first drying chamber. Mounting holes are provided at the positions of the mounting plates corresponding to the multiple upper section pipes and the multiple lower section pipes, and both the upper section pipes and the lower section pipes are fixedly connected to the mounting holes.

[0009] Further, the necking section pipe is made of a flexible material, and the cross-sectional shape of the necking section pipe is hourglass-shaped. When the pressure of the rising gas is high, the eddy current generating member will slide upward due to the gas thrust, and then by using the provided linkage assembly, a plurality of pressing members will slide outward to the necking section pipe, making the inner diameter of the middle position of the necking section pipe larger. When the pressure of the rising gas is low, the eddy current generating member will slide downward due to its own gravity, and then by using the provided linkage assembly, a plurality of pressing members will press the necking section pipe, making the inner diameter of the middle position of the necking section pipe smaller.

[0010] Further, the linkage assembly includes a fixing plate fixedly installed on the outer surface of the upper section pipe. A mounting box is fixedly provided at the bottom end of the fixing plate. A gear shaft is rotatably provided inside the mounting box. A first rack is slidably provided horizontally on the mounting box and a second rack is slidably provided vertically on the mounting box. One end of the second rack is fixedly connected to the eddy current generating member, and one end of the first rack is fixedly connected to the pressing member. The first rack is arranged below the gear shaft, and the second rack is arranged outside the gear shaft. Both the first rack and the second rack are meshed with the gear shaft.

[0011] Further, the shape of the second rack is L-shaped. Moving grooves are provided at the positions of the lower section pipes corresponding to the multiple second racks, and sealing covers for blocking the moving grooves are fixedly provided on the sides of the second racks close to the moving grooves.

[0012] Further, a box cover is fixedly installed at the opening of the mounting box, and sliding grooves are provided at the positions of the mounting box corresponding to the first rack and the second rack.

[0013] Further, a rotating hole is provided at the end of the mounting box corresponding to the gear shaft, and the end of the gear shaft is in fit connection with the rotating hole through a bearing.

[0014] Further, the eddy current generating member is composed of two spiral plates, the tops of the two spiral plates are connected by an annular member, and the second racks are fixedly connected to the annular member.

[0015] Further, an air inlet pipe is fixedly provided at the position of the tower body corresponding to the air inlet chamber, and observation windows are fixedly provided at the positions of the tower body corresponding to the first spraying chamber, the second spraying chamber and the first drying chamber.

[0016] The beneficial effects of the present invention are as follows: By providing a flow-stabilizing component and a linkage component, the effect of adaptive adjustment according to the upward pressure of the gas is achieved, ensuring the flow rate of the gas, enabling the gas to stably form a swirl inside the second drying chamber, thereby thoroughly centrifuging out the water molecules in the waste gas. Moreover, the eddy current generating member also promotes the formation of a swirl in the gas, thus separating part of the water in the gas, effectively improving the processing standard of the equipment and avoiding affecting the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the tower body of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the tower body of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the first drying chamber of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the mounting plate of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the fixing plate of the present invention;

[0023] Figure 6 It is a schematic diagram of the state of the constricted section pipe when the upward gas pressure is small in the present invention;

[0024] Figure 7 It is a schematic diagram of the state of the constricted section pipe when the upward gas pressure is large in the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the eddy current generating member of the present invention;

[0026] Figure 9 It is a schematic diagram of the structure of the linkage component of the present invention.

[0027] In the figure: 1. Tower body; 101. Intake chamber; 102. First spray chamber; 103. Second spray chamber; 104. First drying chamber; 105. Second drying chamber; 106. Exhaust pipe; 107. Intake pipe; 2. Spray assembly; 3. Liquid supply assembly; 4. Demisting component; 5. Flow stabilizing assembly; 501. Lower pipe; 5011. Movable groove; 502. Upper pipe; 503. Reducing section pipe; 504. Vortex generating component; 505. Extrusion component; 6. Linkage assembly; 601. Fixed plate; 602. Installation box; 6021. Box cover; 6022. Slide groove; 603. Gear shaft; 604. First rack; 605. Second rack; 606. Sealing cover; 7. Mounting plate; 701. Mounting hole; 8. Observation window. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] An embodiment of an environmental protection air cleaning device of the present invention is as Figures 1 to 9 shown, and it includes a tower body 1 for treating waste gas. Inside the tower body 1, from bottom to top, there are an intake chamber 101, a first spray chamber 102, a second spray chamber 103, a first drying chamber 104, and a second drying chamber 105 in sequence. Inside both the first spray chamber 102 and the second spray chamber 103, there is a spray assembly 2 for spraying waste gas washing liquid (there is a packing layer below the spray assembly 2, and in this application, the packing layer is included inside the spray assembly 2). On one side of the bottom of the tower body 1, there is a liquid supply assembly 3 for supplying waste gas washing liquid to the two spray assemblies 2. At the top of the second drying chamber 105, there is an exhaust pipe 106, and inside the second drying chamber 105, there is a demisting component 4; inside the first drying chamber 104, there are multiple flow stabilizing assemblies 5 for controlling the pressure of the rising gas. When the pressure of the rising gas is small, the gas is gathered and accelerated to flow, ensuring that the gas can form a swirl well inside the second drying chamber 105, and then thoroughly centrifuging out the water molecules in the waste gas.

[0030] As Figures 5 to 7 shown, the flow stabilizing assembly 5 includes a lower pipe 501 and an upper pipe 502. The lower pipe 501 and the upper pipe 502 are connected and communicated through a reducing section pipe 503. Inside the lower pipe 501, a vortex generating component 504 is slidably arranged. The vortex generating component 504 is composed of two spiral plates, and the tops of the two spiral plates are connected through an annular part. In the middle position of the outer surface of the reducing section pipe 503, multiple extrusion components 505 are attached. The vortex generating component 504 and the multiple extrusion components 505 are all connected and coordinated through a linkage assembly 6, asFigure 2 and Figure 3 As shown, mounting plates 7 are fixedly installed at the positions corresponding to the upper-section pipes 502 and the lower-section pipes 501 in the first drying chamber 104. Mounting holes 701 are provided at the positions of the mounting plates 7 corresponding to the multiple upper-section pipes 502 and the multiple lower-section pipes 501. The upper-section pipes 502 and the lower-section pipes 501 are fixedly connected to the mounting holes 701. The necking-section pipe 503 is made of a flexible material, and the cross-sectional shape of the necking-section pipe 503 is hourglass-shaped, as Figure 6 and Figure 7 shown. When the pressure of the ascending gas is high, the eddy current generating member 504 will slide upward due to the gas thrust, and then the provided linkage assembly 6 (as Figure 9 shown) is used to make multiple pressing members 505 slide outward to the necking-section pipe 503, so that the inner diameter of the middle position of the necking-section pipe 503 becomes larger. When the pressure of the ascending gas is low, the eddy current generating member 504 will slide downward due to its own gravity, and then the provided linkage assembly 6 (as Figure 9 shown) is used to make multiple pressing members 505 press the necking-section pipe 503, so that the inner diameter of the middle position of the necking-section pipe 503 becomes smaller. After the gas enters the lower-section pipe 501, the eddy current generating member 504 is used to promote the gas to form a swirl, so as to separate part of the moisture in the gas by using the swirl of the gas. By using the necking-section pipe 503, the gas flow rate can be increased.

[0031] As Figures 5 to 9 shown, the linkage assembly 6 includes a fixing plate 601 fixedly installed on the outer surface of the upper-section pipe 502. A mounting box 602 is fixedly provided at the bottom end of the fixing plate 601. A toothed shaft 603 is rotatably provided inside the mounting box 602. A rotating hole is provided at the end of the mounting box 602 corresponding to the toothed shaft 603. The end of the toothed shaft 603 is connected to the rotating hole through a bearing. A first rack 604 is slidably provided horizontally on the mounting box 602 and a second rack 605 is slidably provided vertically on the mounting box 602. One end of the second rack 605 is fixedly connected to the eddy current generating member 504 (the second rack 605 is fixedly connected to the annular member). One end of the first rack 604 is fixedly connected to the pressing member 505. The first rack 604 is arranged below the toothed shaft 603. The second rack 605 is arranged outside the toothed shaft 603. The first rack 604 and the second rack 605 are both meshed with the toothed shaft 603. The shape of the second rack 605 is L-shaped. Moving slots 5011 are provided at the positions of the lower-section pipe 501 corresponding to the multiple second racks 605. Sealing covers 606 for covering the moving slots 5011 are fixedly provided on one side of the second racks 605 close to the moving slots 5011. A box cover 6021 is fixedly installed at the opening of the mounting box 602. Sliding slots 6022 are provided at the positions of the mounting box 602 corresponding to the first rack 604 and the second rack 605, as Figures 5 to 9As shown, when the gas contacts the eddy current generator 504, the eddy current generator 504 can monitor the pressure of the gas. On the one hand, when the pressure of the rising gas is high (the pressure increases as the flow rate of the rising gas increases), the rising gas will cause the eddy current generator 504 to slide upward. When the eddy current generator 504 slides upward, the linkage assembly 6 is utilized (the second rack 605 will cause the gear shaft 603 to rotate, thereby causing the gear shaft 603 to drive the first rack 604 to slide, enabling multiple pressing members 505 to slide outward from the mouth-restricting section pipe 503, increasing the inner diameter of the middle position of the mouth-restricting section pipe 503). Multiple pressing members 505 can gradually release the restraint on the mouth-restricting section pipe 503 (that is, the diameter of the mouth-restricting section pipe 503 will gradually increase (the mouth-restricting section pipe 503 is made of elastic material), and then the speed of the gas passing through the mouth-restricting section pipe 503 can be increased, thereby ensuring that the gas can form a swirling flow well inside the demisting member 4, and then thoroughly centrifuging out the water molecules in the waste gas). On the other hand, when the pressure of the rising gas is low, due to the gravity of the eddy current generator 504 itself, it can slide downward automatically, and then the linkage assembly 6 can be utilized to gradually cause multiple pressing members 505 to press the mouth-restricting section pipe 503 (the second rack 605 will cause the gear shaft 603 to rotate in the reverse direction, thereby causing the gear shaft 603 to drive the first rack 604 to slide, enabling multiple pressing members 505 to press the mouth-restricting section pipe 503, reducing the inner diameter of the middle position of the mouth-restricting section pipe 503), that is, the diameter of the mouth-restricting section pipe 503 will gradually decrease, thereby improving the gas aggregation and acceleration effect of the mouth-restricting section pipe 503, ensuring that the gas can form a swirling flow well inside the demisting member 4, and then thoroughly centrifuging out the water molecules in the waste gas (as Figure 1 and Figure 2 shown).

[0032] As Figure 1 and Figure 2 shown, at the position corresponding to the air inlet chamber 101 of the tower body 1, an air inlet pipe 107 is fixedly provided, and observation windows 8 are fixedly provided at the positions corresponding to the first spray chamber 102, the second spray chamber 103, and the first drying chamber 104 of the tower body 1. By using the provided observation windows 8, it is convenient for the operator to directly understand the actual situation inside the tower body 1.

[0033] The spray assembly 2, the packing layer, the liquid supply assembly 3, and the demisting member 4 described in this application are all well-known technologies in the technical field. Therefore, their working principles and detailed structures are not described herein, and only a brief description is given here without imposing any limitations.

[0034] The working process is as follows:

[0035] S1. As Figure 1 and Figure 2As shown, during use, gas enters the intake chamber 101 through the intake pipe 107, and then successively passes through the first spray chamber 102, the second spray chamber 103, the first drying chamber 104, and the second drying chamber 105, and is then discharged through the outlet pipe 106;

[0036] S2. As Figure 1 and Figure 2 shown, when the gas enters the first spray chamber 102 and the second spray chamber 103, the two spray assemblies 2 will spray the washing liquid into the interior of the packing layer, enabling the waste gas to be fully washed and separating the harmful substances in the waste gas;

[0037] S3. As Figures 2 to 4 shown, when the gas enters the first drying chamber 104, the gas will enter the interior of multiple lower section pipes 501, and then successively pass through the convergent section pipe 503 and the upper section pipe 502 to enter the second drying chamber 105;

[0038] S4. As Figures 5 to 7 shown, when the gas enters the lower section pipe 501, the eddy current generating member 504 will cause the gas to form a swirl, thereby separating a part of the moisture in the gas by using the swirl of the gas. By using the convergent section pipe 503, the gas flow rate can be increased (the Venturi effect is based on the principle of fluid mechanics. When a fluid (liquid or gas) passes through a pipe and the cross-section of a certain part of the pipe shrinks, the flow rate of the fluid will increase), ensuring that the gas can well form a swirl again inside the demisting member 4, and then thoroughly centrifuging out the water molecules in the waste gas (as Figure 2 shown);

[0039] S5. As Figures 6 to 9 shown, when the gas contacts the eddy current generating member 504, the eddy current generating member 504 can monitor the pressure of the gas. When the pressure of the ascending gas is high (when the flow rate of the ascending gas is large, the pressure will increase accordingly), the ascending gas will cause the eddy current generating member 504 to slide upward. When the eddy current generating member 504 slides upward, by using the linkage assembly 6 (the second rack 605 will cause the gear shaft 603 to rotate, thereby causing the gear shaft 603 to drive the first rack 604 to slide, so that multiple pressing members 505 slide outward toward the convergent section pipe 503, making the inner diameter of the middle position of the convergent section pipe 503 larger), the constraints of the multiple pressing members 505 on the convergent section pipe 503 can be gradually released, (that is, the diameter of the convergent section pipe 503 will gradually increase (the convergent section pipe 503 is made of elastic material), and then the speed of the gas passing through the convergent section pipe 503 can be increased, thereby ensuring that the gas can well form a swirl inside the demisting member 4, and then thoroughly centrifuging out the water molecules in the waste gas, as Figure 2 shown);

[0040] S6. As Figures 6 to 9As shown, when the ascending gas pressure is small, the gravity of the eddy current generator 504 itself can be utilized to allow it to slide downward automatically. Then, by using the linkage assembly 6, multiple pressing members 505 can be gradually used to press the necking section pipe 503 (the second rack 605 will cause the tooth shaft 603 to rotate in the reverse direction, thereby causing the tooth shaft 603 to drive the first rack 604 to slide, so that multiple pressing members 505 press the necking section pipe 503, making the inner diameter of the middle position of the necking section pipe 503 smaller), that is, the diameter of the necking section pipe 503 will gradually decrease, thereby improving the gas aggregation and acceleration effect of the necking section pipe 503, ensuring that the gas can form a swirl well inside the demisting member 4, and then thoroughly centrifuging out the water molecules in the waste gas (as Figure 2 shown);

[0041] S7. It can be adaptively adjusted according to the ascending pressure of the gas to ensure the flow velocity of the gas, so that the gas can stably form a swirl inside the second drying chamber 105, and then thoroughly centrifuging out the water molecules in the waste gas. Moreover, the eddy current generator 504 will also cause the gas to form a swirl, thereby separating part of the water in the gas, effectively improving the processing standard of the equipment and avoiding affecting the production efficiency.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air cleaning device for environmental protection, comprising a tower body for treating waste gas, characterized in that: Inside the tower body, from bottom to top, there are an air inlet chamber, a first spray chamber, a second spray chamber, a first drying chamber, and a second drying chamber in sequence. Inside both the first spray chamber and the second spray chamber, there are spray components for spraying waste gas washing liquid. On one side of the bottom of the tower body, there is a liquid supply component for supplying waste gas washing liquid to the two spray components. At the top of the second drying chamber, there is an air outlet pipe, and inside the second drying chamber, there is a demisting component; Inside the first drying chamber, there are multiple flow stabilizing components for controlling the pressure of the rising gas. When the pressure of the rising gas is small, it causes the gas to gather and accelerate the flow, ensuring that the gas can form a swirl well inside the second drying chamber, and then thoroughly centrifuging out the water molecules in the waste gas; The flow stabilizing component includes a lower pipe and an upper pipe. The lower pipe and the upper pipe are connected through a constricted section pipe. Inside the lower pipe, there is a vortex generating part slidingly arranged. At the middle position of the outer surface of the constricted section pipe, there are multiple pressing parts attached. Between the vortex generating part and the multiple pressing parts, they are all connected through a linkage component; The constricted section pipe is made of flexible material, and the cross-sectional shape of the constricted section pipe is hourglass-shaped. When the pressure of the rising gas is large, the vortex generating part will slide upward due to the gas thrust, and then use the set linkage component to make the multiple pressing parts slide outward to the constricted section pipe, making the inner diameter of the middle position of the constricted section pipe larger. When the pressure of the rising gas is small, the vortex generating part will slide downward due to its own gravity, and then use the set linkage component to make the multiple pressing parts press the constricted section pipe, making the inner diameter of the middle position of the constricted section pipe smaller; thus, according to the size of the rising gas pressure, the flow stabilizing component is adjusted adaptively in real time to ensure the gas flow velocity.

2. An environmental protection air cleaning device according to claim 1, characterized in that: At the positions corresponding to the upper pipe and the lower pipe in the first drying chamber, mounting plates are fixedly installed. At the positions corresponding to the multiple upper pipes and the multiple lower pipes on the mounting plates, mounting holes are opened. Both the upper pipe and the lower pipe are fixedly connected to the mounting holes.

3. An environmental protection air cleaning device according to claim 2, characterized in that: The linkage component includes a fixing plate fixedly installed on the outer surface of the upper pipe. At the bottom end of the fixing plate, there is a mounting box fixedly provided. Inside the mounting box, there is a toothed shaft rotatably arranged. On the mounting box, there is a first rack sliding horizontally and a second rack sliding vertically. One end of the second rack is fixedly connected to the vortex generating part, and one end of the first rack is fixedly connected to the pressing part. The first rack is arranged below the toothed shaft, and the second rack is arranged outside the toothed shaft. Both the first rack and the second rack are meshed with the toothed shaft.

4. An environmental protection air cleaning device according to claim 3, characterized in that: The shape of the second rack is L-shaped. At the positions corresponding to the multiple second racks on the lower pipe, there are activity slots opened. On the side of the second rack (605) close to the activity slot, there are sealing covers fixedly provided for blocking the activity slots.

5. An environmental protection air cleaning device according to claim 3, characterized in that: At the opening of the mounting box, there is a box cover fixedly installed. At the positions corresponding to the first rack and the second rack on the mounting box, there are sliding slots opened.

6. An environmental protection air cleaning device according to claim 3, characterized in that: At the end of the mounting box corresponding to the toothed shaft, there is a rotation hole opened. The end of the toothed shaft is connected to the rotation hole through a bearing.

7. An environmental protection air cleaning device according to claim 3, characterized in that: The vortex generating part is composed of two spiral plates. The tops of the two spiral plates are connected through an annular part. The second racks are all fixedly connected to the annular part.

8. An air cleaning device for environmental protection according to claim 1, characterized in that: At the position corresponding to the air inlet chamber on the tower body, there is an air inlet pipe fixedly provided. At the positions corresponding to the first spray chamber, the second spray chamber, and the first drying chamber on the tower body, there are observation windows fixedly provided.

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