A spray scrubbing tower with a gas split flow optimization device
By setting rotating blades, gas split plates and spray units in the spray scrubber, the gas flow path is optimized, and the problem of poor purification effect of traditional spray scrubber under high flow rates or high load conditions is solved, achieving more uniform air flow distribution and higher purification efficiency.
Patent Information
- Application Number
- CN202411626256.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-04-01
AI Technical Summary
In the case of high gas flow velocity or high liquid load, traditional spray scrubbers are difficult to achieve the ideal purification effect, and the uneven air flow distribution leads to excessive air flow velocity in some areas and cannot fully contact the scrubber liquid.
A spray scrubber tower with a gas shunt optimization device was designed. By setting up a rotating blade, a gas shunt plate and a spray unit, the gas flow path is optimized to ensure that the gas flow is evenly distributed and fully contacted with the scrubber liquid.
By optimizing the gas flow path, the gas purification efficiency is improved. Especially under the operating conditions where the gas flow rate is high or the liquid load is large, the higher purification efficiency can be maintained to ensure full contact between the exhaust gas and the scrubber.
Smart Images
Figure CN119733348A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a spray washing tower with a gas split flow optimization device. Background Art
[0002] Effective treatment of industrial waste gas, especially purification of waste gas through scrubbers, is an important issue in today's environmental protection field.
[0003] Traditional spray scrubbers are widely used in the purification of various industrial waste gases. The principle is to fully contact the waste gas with the liquid, so as to adsorb or dissolve the harmful substances in the gas into the liquid, and finally purify the waste gas. Although the spray scrubber has certain advantages in treating gas pollution, it still has some shortcomings, especially under conditions of high gas flow rate or large liquid load, it is often difficult to achieve the ideal purification effect.
[0004] In traditional spray scrubbers, the gas flow path in the tower body is relatively fixed, and the gas flow direction cannot be effectively optimized. Uneven airflow distribution may cause the airflow velocity in some areas to be too high, which cannot fully contact the scrubbing liquid, thus affecting the purification effect.
[0005] Therefore, those skilled in the art need a spray scrubbing tower with a gas diversion optimization device that can effectively optimize the gas flow direction and achieve better washing effects under conditions of high gas flow rate or large liquid load. Summary of the invention
[0006] The purpose of the present invention is to solve the above deficiencies in the prior art and provide a spray scrubber with a gas diversion optimization device. By setting the structure of rotating blades, gas diversion plates and spray units, the gas flow path is optimized and the gas purification efficiency is improved. The following is a specific solution:
[0007] A spray scrubbing tower with a gas flow diversion optimization device comprises an exhaust pipe, an air intake pipe, a tower body and a waste liquid pipe, wherein the tower body comprises an exhaust section, a separation section, a washing section and a gas inlet section in order from top to bottom, the exhaust pipe is connected with the exhaust section, the air intake pipe is connected with the gas inlet section, the waste liquid pipe is connected with the gas inlet section, the upper diameter of the tower body is smaller than the lower diameter of the tower body, an inclined slope is provided at the bottom of the tower body, the waste liquid pipe is arranged on the central axis of the tower body, a distributor is provided at the outlet of the air intake pipe, and the outlet of the distributor is provided with a There are rotating blades, and blade pipes are arranged inside the rotating blades. The distributor can control the rotating blades to rotate in a horizontal direction. The washing section is provided with a gas diverter plate, and the gas diverter plate is arranged along the direction of the central axis of the tower body. Guide blades are arranged between the gas diverter plates, and the guide blades can rotate in a horizontal direction. A spray unit is arranged on the upper side of the gas diverter plate, and the spray unit is arranged around the tower body. A gas-liquid separator and a fine droplet collector are provided on the separation section. A cleaning device is provided on the waste liquid pipeline, and the cleaning device is connected to the cleaning pipeline.
[0008] In the design of the tower body, the upper diameter is smaller than the lower diameter. This structure is conducive to the distribution and flow of gas in the tower. An inclined slope is set at the bottom of the tower body to ensure that the waste liquid can be discharged smoothly and prevent liquid retention or accumulation. The waste liquid pipeline is set on the central axis of the tower body, which is conducive to the centralized collection and discharge of waste liquid.
[0009] Furthermore, the cleaning device comprises a cleaning head, and the outlet of the cleaning head is arranged in the horizontal direction; the outlet of the cleaning head is arranged in the horizontal direction, so that the inclined slope surface at the bottom of the tower body can be cleaned without manual labor, and the cleaning is more efficient.
[0010] Furthermore, a motor is provided in the distributor, and the motor is connected to the rotating blades. The motor is used to control the rotating blades to rotate 0-45 degrees around the horizontal direction; in order to further improve the effect of gas diversion, a distributor is provided at the outlet of the air inlet pipe, and rotating blades are provided inside the distributor. The rotating blades are controlled by the motor to rotate 0-45 degrees around the horizontal direction, and the gas is sprayed upward through the blade pipe, which solves the problem of uneven airflow distribution caused by the fixed spray angle in the traditional spray washing tower. The rotating blades can effectively control the flow direction of the gas, so that the airflow is evenly distributed in the washing section, thereby improving the efficiency of gas-liquid contact and optimizing the purification effect of the exhaust gas.
[0011] Furthermore, the spacing between the gas diverter plates is different, and the spacing between the guide blades closer to the central axis of the tower body is larger; the core of the spray washing tower lies in its gas diversion optimization device. In traditional spray washing towers, the gas flow is often uneven, and the gas flow rate in some areas is relatively high, resulting in insufficient contact between the gas and the liquid, affecting the purification efficiency of the exhaust gas. The present invention designs gas diverter plates and guide blades with different spacing in the washing section of the tower body, arranges gas diverter plates along the central axis of the tower body to guide the gas flow to be more uniform, and arranges guide blades that can rotate in a horizontal direction between the gas diverter plates. The guide blades further optimize the gas flow path by adjusting the angle to ensure that the gas can be evenly distributed and fully purified in each area inside the tower body.
[0012] Furthermore, the spray unit comprises a spray head, which is conical, and the outlet on the spray head is arranged downward. The spray head adopts a conical spray structure, which can atomize the washing liquid into fine droplets to improve the liquid-gas contact efficiency.
[0013] Furthermore, 5 to 8 spray heads are arranged at equal intervals around the tower body to ensure that the atomized droplets are evenly distributed on the cross section of the tower body.
[0014] Furthermore, the gas-liquid separator includes centrifugal blades and through holes; the gas-liquid separator adopts the design principle of centrifugal blades and through holes, and the centrifugal blades can use the centrifugal force of the gas to separate the droplets in the air flow onto the tower wall, and then flow downward through the through holes and gradually flow to the waste liquid pipeline, thereby reducing the situation of residual droplets in the gas, improving the quality of gas emissions, and reducing the difficulty of waste liquid treatment.
[0015] Furthermore, a control valve is provided on the exhaust pipe to prevent excessive airflow from affecting the washing efficiency.
[0016] Furthermore, the surface of the rotating blades of the distributor is coated with a wear-resistant coating, which can effectively resist erosion by corrosive substances and extend the service life of the equipment.
[0017] Furthermore, the gas splitter plate and the guide vanes are made of corrosion-resistant materials, which can effectively resist erosion by corrosive substances and extend the service life of the equipment.
[0018] Beneficial effects: The present invention can accurately control the flow direction and distribution of the airflow by setting the distributor, the guide vane and the gas splitter plate, so that the gas is evenly distributed inside the tower body, avoiding the problem of insufficient gas-liquid contact caused by too fast gas flow rate, and ensuring sufficient contact between the exhaust gas and the scrubbing liquid;
[0019] When the gas flow rate is high, part of the airflow in the traditional spray washing tower often fails to fully participate in the washing process, resulting in low purification efficiency. The rotating blades in the present invention can be dynamically adjusted according to the changes in the airflow, ensuring that even under conditions of high airflow, the gas can still be reasonably distributed to various parts of the tower body, so that the device maintains a higher purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of a spray scrubber with a gas split flow optimization device;
[0021] In the figure: 100, tower body, 200, exhaust section, 210, exhaust pipe, 220, fine droplet collector, 230, control valve, 300, separation section, 310, gas-liquid separator, 320, through hole, 400, washing section, 410, spray unit, 420, gas diverter plate, 430, guide vane, 500, gas inlet section, 510, waste liquid pipeline, 520, air intake pipeline, 530, distributor, 540, motor, 550, rotating blade, 560, blade pipeline, 570, cleaning device, 580, cleaning head, 590, cleaning pipeline, 600, inclined slope. DETAILED DESCRIPTION
[0022] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.
[0023] Please see Figure 1A spray scrubber with a gas diversion optimization device comprises an exhaust pipe 210, an air intake pipe 520, a tower body 100 and a waste liquid pipe 510. The tower body 100 comprises an exhaust section 200, a separation section 300, a washing section 400 and a gas inlet section 500 from top to bottom. The exhaust pipe 210 is connected to the exhaust section 200, the air intake pipe 520 is connected to the gas inlet section 500, and the waste liquid pipe 510 is connected to the gas inlet section 500. The upper diameter of the tower body 100 is smaller than the lower diameter of the tower body 100. The bottom of the tower body 100 is provided with an inclined slope 600. The waste liquid pipe 510 is arranged on the central axis of the tower body 100. The outlet of the air intake pipe 520 is provided with a distributor 530. The distributor The outlet of 530 is provided with a rotating blade 550, and a blade pipe 560 is provided inside the rotating blade 550. The distributor 530 can control the rotating blade 550 to rotate in a horizontal direction. A gas diverter plate 420 is provided on the washing section 400, and the gas diverter plate 420 is arranged along the direction of the central axis of the tower body 100. Guide blades 430 are provided between the gas diverter plates 420, and the guide blades 430 can rotate in a horizontal direction. A spray unit 410 is provided on the upper side of the gas diverter plate, and the spray unit 410 is arranged around the tower body 100. A gas-liquid separator 310 and a fine droplet collector 220 are provided on the separation section 300. A cleaning device 570 is provided on the waste liquid pipeline 510, and the cleaning device 570 is connected to the cleaning pipeline 590.
[0024] The cleaning device 570 includes a cleaning head 580, and the outlet of the cleaning head 580 is arranged in the horizontal direction; a motor 540 is arranged in the distributor 530, and the motor 540 is connected to the rotating blade 550, and the motor 540 is used to control the rotating blade 550 to rotate 0-45 degrees around the horizontal direction; the spacing between the gas diverter plates 420 is different, and the spacing between the guide blades 430 close to the central axis of the tower body 100 is larger; the spray unit 410 includes a spray head, the spray head is conical, and the outlet on the spray head is arranged downward; 5-8 spray heads are arranged equidistantly around the tower body 100; the gas-liquid separator 310 includes centrifugal blades and through holes 320; the exhaust pipe 210 is provided with a control valve 230; the surface of the rotating blade 550 of the distributor 530 is coated with a wear-resistant coating; the material of the gas diverter plate 420 and the guide blade 430 is corrosion-resistant material.
[0025] For the purpose of greater clarity, the invention is described in detail through the following examples.
[0026] In a specific embodiment, the height of the tower body 100 is 10 meters, the upper diameter of the tower body 100 is 1.5 meters, and the lower diameter is 2 meters. The outer wall of the tower body 100 is made of polyvinyl chloride material, and the inner wall is coated with an acid-resistant and alkali-resistant coating to ensure long-term corrosion resistance. An inclined slope 600 with a slope of 10° is arranged at the bottom of the tower body 100; the diameter of the air intake pipe 520 is 300 mm, and a distributor 530 with a diameter of 500 mm is installed at the outlet of the air intake pipe 520. A rotating blade 550 is arranged in the distributor 530. The blade is made of a wear-resistant alloy material and is coated with a ceramic coating on the surface. The power of the motor 540 is 2 kilowatts, and the rotation angle of the rotating blade 550 can be adjusted within an adjustment range of 0° to 45°, so that the air flow is evenly distributed to the washing section 400.
[0027] In a specific embodiment, 7 gas diverter plates 420 are arranged in the washing section 400, each of which is 500 mm long, 10 mm thick, and made of stainless steel. The spacing between the diverter plates gradually increases from the center of the tower body 100 to the outside, the spacing between the guide blades 430 close to the central axis is 40 mm, and the spacing between the guide blades 430 away from the central axis is 25 mm and 20 mm. The guide blades 430 are made of corrosion-resistant alloy, which can ensure long-term stable operation.
[0028] In a specific embodiment, 8 spray heads are arranged above the washing section 400, and the spray heads are evenly distributed on the periphery of the tower body 100. The diameter of the outlet of each spray head is 5 mm, the flow rate of the nozzle is 500 liters per minute, and the spray liquid is a water-soluble washing liquid. The spray range covers the entire washing section 400.
[0029] In a specific embodiment, the structure of the gas-liquid separator 310 adopts a centrifugal blade with a diameter of 200 mm. The centrifugal blade is at a 90° angle to the air flow axis, the diameter of the through hole 320 is 50 mm, and the fine droplet collector 220 is located on the lower side of the exhaust pipe 210, and its capture efficiency reaches more than 95%; the diameter of the waste liquid pipe 510 is 250 mm, and a cleaning device 570 is installed. The outlet of the cleaning head 580 is arranged in the horizontal direction, the injection flow rate of the cleaning head 580 is 50 liters per minute, and the cleaning liquid is a water-soluble cleaning liquid.
[0030] The following is an implementation example:
[0031] The waste gas containing pollutants enters the gas inlet section 500 through the air inlet pipe 520, and is evenly distributed to the washing section 400 through the distributor 530. The rotating blades 550 in the distributor 530 can adjust the rotation angle according to the change of the air flow to ensure the uniform distribution of the gas flow direction; when the gas flows through the washing section 400, the washing liquid is sprayed into the air flow through the spray unit 410, and the spray liquid fully contacts with the waste gas to absorb and remove the pollutants in the waste gas. The gas splitter plate 420 and the guide blade 430 optimize the flow direction and flow rate of the air flow, so that the overall air flow velocity is more uniform and the flow rate is lower, so that the spray liquid and the waste gas flow are uniform and the flow rate is lower. The gas is fully contacted with the air, and the gas treated by the washing section 400 enters the separation section 300, where the gas-liquid separator 310 separates the droplets in the gas by centrifugal force, and discharges the liquid through the through hole 320 and flows to the bottom of the tower body 100 due to gravity, and is discharged through the waste liquid pipe 510. The fine droplet collector 220 further captures the remaining tiny droplets to ensure that the gas contains almost no droplets when it is finally discharged; the cleaning device 570 is started regularly, and the cleaning head 580 is used to clean the tower body 100 and the waste liquid pipe 510 in the horizontal direction to ensure that there is no scale inside the tower body 100 and keep the equipment running efficiently.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.
Claims
1. A spray scrubber with a gas splitting optimization device, characterized in that: The utility model comprises an exhaust pipe, an air intake pipe, a tower body and a waste liquid pipe. The tower body comprises an exhaust section, a separation section, a washing section and a gas inlet section from top to bottom in sequence. The exhaust pipe is communicated with the exhaust section, the air intake pipe is communicated with the gas inlet section, and the waste liquid pipe is communicated with the gas inlet section. The upper diameter of the tower body is smaller than the lower diameter of the tower body. The bottom of the tower body is provided with an inclined slope. The waste liquid pipe is arranged on the central axis of the tower body. A distributor is arranged at the outlet of the air intake pipe. A rotating blade is arranged at the outlet of the distributor. A blade pipe is arranged inside the rotating blade. The distributor can control the rotating blade to rotate in a horizontal direction. A gas diverter plate is arranged on the washing section. The gas diverter plate is arranged along the direction of the central axis of the tower body. Guide blades are arranged between the gas diverter plates. The guide blades can rotate in a horizontal direction. A spray unit is arranged on the upper side of the gas diverter plate. The spray unit is arranged around the tower body. A gas-liquid separator and a fine droplet collector are arranged on the separation section. A cleaning device is arranged on the waste liquid pipe. The cleaning device is connected to the cleaning pipe.
2. A spray scrubber with a gas flow optimization device according to claim 1, characterized in that: The cleaning device comprises a cleaning head, and an outlet of the cleaning head is arranged in a horizontal direction.
3. The spray scrubber with a gas flow optimization device according to claim 1, characterized in that: A motor is arranged inside the distributor, and the motor is connected to the rotating blades. The motor is used to control the rotating blades to rotate 0-45 degrees around the horizontal direction.
4. The spray scrubber with a gas flow optimization device according to claim 1, characterized in that: The distances between the gas splitter plates are different, and the distances between the guide vanes closer to the central axis of the tower body are larger.
5. The spray scrubber with a gas flow optimization device according to claim 1, characterized in that: The spray unit comprises a spray head, the spray head is conical, and an outlet on the spray head is arranged downward.
6. The spray scrubber with a gas flow optimization device according to claim 2, characterized in that: There are 5 to 8 spray heads equidistantly arranged around the tower body.
7. The spray scrubber with a gas flow optimization device according to claim 1, characterized in that: The gas-liquid separator includes centrifugal blades and through holes.
8. The spray scrubber with a gas flow optimization device according to claim 1, characterized in that: A control valve is provided on the exhaust pipe.
9. The spray scrubber with a gas flow optimization device according to claim 1, characterized in that: The surface of the rotating blade of the distributor is coated with a wear-resistant coating.
10. The spray scrubber with a gas flow optimization device according to claim 1, characterized in that: The gas splitter plate and the guide vane are made of corrosion-resistant materials.