Electrostatic precipitator inlet air flow distribution mechanism

Abstract

The utility model discloses a kind of electrostatic precipitator inlet airflow distribution mechanism, including conical air inlet, fixedly installed in the inside of conical air inlet, airflow distribution assembly for equal flow, airflow distribution assembly includes central cone cylinder, equidistantly distributed in the outside of central cone cylinder, and with central cone cylinder welded fixed assembly plate, with assembly plate welded fixed, and first flow guide ring plate is sleeved in the outside of central cone cylinder, with assembly plate welded fixed, and second flow guide ring plate is sleeved in the outside of first flow guide ring plate, with assembly plate welded fixed, and third flow guide ring plate is sleeved in the outside of second flow guide ring plate, and equidistantly welded on the outside of third flow guide ring plate, for the combination design of cooperation conical air inlet fixed mounting of connecting plate on conical ring plate cooperation flow guide tooth;The mechanism is combined by the combination design of unique multistage conical ring plate cooperation flow guide tooth, high efficiency, uniform airflow distribution is realized, to significantly improve the overall performance, reliability and economy of electrostatic precipitator.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrostatic precipitators, specifically relating to an inlet airflow distribution mechanism for an electrostatic precipitator. Background Technology

[0002] The working principle of an electrostatic precipitator is to ionize the flue gas using a high-voltage electric field. The dust particles in the airflow become charged and separate from the airflow under the action of the electric field. The uniformity of the airflow distribution in the electrostatic precipitator has a significant impact on the dust removal efficiency. Therefore, the airflow distribution guide plate at the inlet of the electrostatic precipitator is a key component to ensure the uniform distribution of airflow. Most of the existing airflow distribution plates have some shortcomings, such as complex structure and uneven airflow distribution. To address these shortcomings, it is necessary to develop an airflow distribution mechanism for electrostatic precipitators that is simple in structure, provides uniform airflow distribution, and has a reasonable structure. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an inlet airflow distribution mechanism for an electrostatic precipitator.

[0004] The technical solution adopted by this utility model to solve its technical problem is: An electrostatic precipitator inlet airflow distribution mechanism includes a conical air inlet, an airflow distribution component fixedly installed inside the conical air inlet for uniform flow, the airflow distribution component including a central cone, an assembly plate equally distributed outside the central cone and welded to the central cone, a first guide ring plate welded to the assembly plate and fitted outside the central cone, a second guide ring plate welded to the assembly plate and fitted outside the first guide ring plate, a third guide ring plate welded to the assembly plate and fitted outside the second guide ring plate, and a connecting plate equally welded to the outer surface of the third guide ring plate for fixed installation in conjunction with the conical air inlet.

[0005] Preferably, the central cone, the first guide ring plate, the second guide ring plate and the third guide ring plate are sequentially assembled to form a conical airflow distribution component, and a gap is maintained between the central cone, the first guide ring plate, the second guide ring plate and the third guide ring plate to form an airflow space.

[0006] Preferably, the front end of the central cone extends to the air inlet end of the conical air inlet, and the rear edge of the central cone is integrally formed with central cone guide teeth.

[0007] Preferably, the first guide ring plate is a gradually expanding guide ring plate, and the tail edge of the first guide ring plate is integrally formed with the first guide ring plate guide teeth.

[0008] Preferably, the second guide ring plate is a gradually expanding guide ring plate, and the tail edge of the second guide ring plate is integrally formed with guide teeth of the second guide ring plate.

[0009] Preferably, the third guide ring plate is a gradually expanding guide ring plate, and the tail edge of the third guide ring plate is integrally formed with the guide teeth of the third guide ring plate.

[0010] Preferably, the inner end of the conical air inlet is welded with a number of mounting ears that are the same as the number of connecting plates.

[0011] The beneficial effects of this utility model are as follows: 1. The central cone and the multi-layered, gradually expanding first, second, and third guide ring plates constitute a "multi-stage airflow distribution system," which divides, slows down, and diffuses the concentrated, high-speed airflow entering the conical air inlet step by step. This ensures that the flue gas can uniformly fill the entire electric field cross-section of the electrostatic precipitator, avoiding the problem that the airflow in some areas is too fast, causing the dust to be carried away before it is fully charged, or too slow, resulting in low equipment utilization. In addition, the uniform and stable airflow can prevent local high-speed airflow from washing away the dust layer already deposited on the dust collecting electrode, thereby effectively preventing "secondary dust." 2. The central cone, assembly plate, first guide ring plate, second guide ring plate, third guide ring plate, and connecting plate are all fixed by welding. The connecting plate is also firmly connected to the assembly ears inside the conical air inlet with bolts. This structure has good overall rigidity and can withstand the impact and vibration of high-speed dust-laden airflow, avoiding loosening or deformation of parts and extending the service life of the equipment. In addition, the entire airflow distribution component is an independent module. It can be assembled externally and then hoisted into the conical air inlet for fixing. This simplifies the on-site installation process and improves installation accuracy and efficiency. When maintenance or replacement is required, the entire module can also be disassembled for convenient maintenance. 3. The central cone guide teeth, the first guide ring plate guide teeth, the second guide ring plate guide teeth, and the third guide ring plate guide teeth work together to smoothly divide a large stream of smoke and dust into multiple smaller streams. This gradual guiding method produces fewer vortices than a straight edge, which helps reduce pressure loss when the airflow passes through the distribution plate. At the same time, the central cone guide teeth, the first guide ring plate guide teeth, the second guide ring plate guide teeth, and the third guide ring plate guide teeth can also generate slight disturbances to the airflow, further "dispersing" any potentially unevenly distributed or non-uniformly sized clumps, making the airflow distribution more uniform and achieving efficient flow uniformity under low resistance. Attached Figure Description

[0012] Figure 1 This is one of the structural diagrams of the inlet airflow distribution mechanism of an electrostatic precipitator according to this utility model; Figure 2 This is the second structural diagram of the inlet airflow distribution mechanism of an electrostatic precipitator according to this utility model; Figure 3 for Figure 2Exploded view; Figure 4 for Figure 3 Rear view of the airflow distribution component. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0014] Example An electrostatic precipitator inlet airflow distribution mechanism includes a conical air inlet 1 and an airflow distribution component 2 fixedly installed inside the conical air inlet 1 for uniform flow. The airflow distribution component 2 includes a central cone 21, an assembly plate 22 equidistantly distributed outside the central cone 21 and welded to it, a first guide ring plate 23 welded to the assembly plate 22 and fitted outside the central cone 21, a second guide ring plate 24 welded to the assembly plate 22 and fitted outside the first guide ring plate 23, a third guide ring plate 25 welded to the assembly plate 22 and fitted outside the second guide ring plate 24, and a connecting plate 26 equidistantly welded to the outer surface of the third guide ring plate 25 for fixed installation in conjunction with the conical air inlet 1.

[0015] The inner end of the conical air inlet 1 is welded with mounting ears 11 of the same number as the connecting plate 26 at equal intervals. Specifically, the airflow distribution component 2 is set inside the conical air inlet 1, and is abutted against the mounting ears 11 by the connecting plate 26 and fixed by bolts and nuts.

[0016] The central cone 21, the first guide ring plate 23, the second guide ring plate 24, and the third guide ring plate 25 are sequentially assembled to form a conical airflow distribution assembly 2. A gap is maintained between the central cone 21, the first guide ring plate 23, the second guide ring plate 24, and the third guide ring plate 25 to form an airflow space. Specifically, they can jointly form a multi-stage airflow distribution system, so that the air entering from the conical air inlet 1 can be dispersed and evenly distributed step by step to meet the working requirements of the electrostatic precipitator.

[0017] It should be further explained that the central cone 21, the first guide ring plate 23, the second guide ring plate 24, the third guide ring plate 25, and the connecting plate 26 are all fixed by welding, and are firmly connected to the mounting ears 11 inside the conical air inlet 1 by bolts through the connecting plate 26. This can withstand the impact and vibration of high-speed dust-laden airflow, avoid loosening or deformation of components, and extend the service life of the equipment. In addition, the entire airflow distribution component 2 is an independent module, which can be assembled externally and then hoisted into the conical air inlet 1 for fixing. This simplifies the on-site installation process and improves installation accuracy and efficiency. When maintenance or replacement is required, the entire module can also be disassembled for convenient maintenance. The front end of the central cone 21 extends to the air inlet of the conical air inlet 1, and the tail edge of the central cone 21 is integrally formed with central cone guide teeth 211. Specifically, the central cone 21 allows a portion of the flue gas flow to directly enter the electrostatic precipitator through the central cone 21, while another portion of the flue gas flow is guided and diffused through the external inclined surface of the central cone 21. In addition, the central cone guide teeth 211 integrally formed on the tail edge of the central cone 21 can further disperse the flue gas flow entering from the central cone 21, making its distribution more uniform.

[0018] The first guide ring plate 23 is a gradually expanding guide ring plate. The tail edge of the first guide ring plate 23 is integrally formed with the first guide ring plate guide teeth 231, which can further disperse the smoke and dust airflow entering from the first guide ring plate 23 and make its distribution more uniform.

[0019] The second guide ring plate 24 is a gradually expanding guide ring plate. The tail edge of the second guide ring plate 24 is integrally formed with second guide ring plate guide teeth 241, which can further disperse the smoke and dust airflow entering from the second guide ring plate 24 and make its distribution more uniform.

[0020] The third guide ring plate 25 is a gradually expanding guide ring plate. The tail edge of the third guide ring plate 25 is integrally formed with the third guide ring plate guide teeth 251, which can further disperse the smoke and dust airflow entering from the third guide ring plate 25 and make its distribution more uniform.

[0021] It should be further explained that the central cone guide tooth 211, the first guide ring plate guide tooth 231, the second guide ring plate guide tooth 241, and the third guide ring plate guide tooth 251 work together to smoothly divide a large stream of smoke and dust into multiple smaller streams. This gradual guiding method produces fewer vortices than a straight edge, which helps to reduce the pressure loss when the airflow passes through the distribution plate. At the same time, the central cone guide tooth 211, the first guide ring plate guide tooth 231, the second guide ring plate guide tooth 241, and the third guide ring plate guide tooth 251 can also generate slight disturbances to the airflow, further "dispersing" any possible clumps with uneven concentration or velocity, making the airflow distribution more uniform and achieving efficient flow uniformity under low resistance.

[0022] In summary, the central cone 21 and the multi-layered, gradually expanding first guide ring plate 23, second guide ring plate 24, and third guide ring plate 25 constitute a "multi-stage airflow distribution system." This system divides, slows down, and diffuses the concentrated, high-speed airflow entering the conical air inlet 1 step by step, ensuring that the flue gas can uniformly fill the entire electric field cross-section of the electrostatic precipitator. This avoids the problem of dust being carried away before being fully charged due to excessively fast airflow in certain areas, or the problem of low equipment utilization due to excessively slow airflow. In addition, the uniform and stable airflow can prevent local high-speed airflow from scouring the dust layer already deposited on the dust collecting electrode, thereby effectively preventing "secondary dust generation."

[0023] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. An airflow distribution mechanism for an electrostatic precipitator inlet, comprising a conical air inlet and an airflow distribution component for uniform flow fixedly installed inside the conical air inlet, characterized in that, The airflow distribution assembly includes a central cone, an assembly plate equidistantly distributed outside the central cone and welded to the central cone, a first guide ring plate welded to the assembly plate and fitted outside the central cone, a second guide ring plate welded to the assembly plate and fitted outside the first guide ring plate, a third guide ring plate welded to the assembly plate and fitted outside the second guide ring plate, and a connecting plate equidistantly welded to the outer surface of the third guide ring plate for fixing and installing with a conical air inlet.

2. The electrostatic precipitator inlet airflow distribution mechanism according to claim 1, characterized in that, A central cone, a first guide ring plate, a second guide ring plate, and a third guide ring plate are sequentially fitted together to form a conical airflow distribution assembly, and gaps are maintained between the central cone, the first guide ring plate, the second guide ring plate, and the third guide ring plate to form an airflow space.

3. The electrostatic precipitator inlet airflow distribution mechanism according to claim 1, characterized in that, The front end of the central cone extends to the air inlet of the conical air inlet, and the tail edge of the central cone is integrally formed with central cone guide teeth.

4. The electrostatic precipitator inlet airflow distribution mechanism according to claim 1, characterized in that, The first guide ring plate is a gradually expanding guide ring plate, and the tail edge of the first guide ring plate has guide teeth integrally formed.

5. The electrostatic precipitator inlet airflow distribution mechanism according to claim 1, characterized in that, The second guide ring plate is a gradually expanding guide ring plate, and the tail edge of the second guide ring plate has guide teeth integrally formed.

6. The electrostatic precipitator inlet airflow distribution mechanism according to claim 1, characterized in that, The third guide ring plate is a gradually expanding guide ring plate, and the tail edge of the third guide ring plate has a guide tooth integrally formed.

7. The electrostatic precipitator inlet airflow distribution mechanism according to claim 1, characterized in that, The inner end of the conical air inlet is welded with a number of mounting ears that are the same as the number of connecting plates.

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