Gas re-distributor plate mounting structure for an electrostatic precipitator

Abstract

The utility model relates to a kind of gas redistribution plate mounting structure of electric tar precipitator, including the installation shell installed on electric tar precipitator, the distribution plate is arranged in the installation shell inside, the positioning component for clamping distribution plate, locking assembly for fixing positioning component.This gas redistribution plate mounting structure of electric tar precipitator, through the orientation cooperation of positioning plate and positioning groove, positioning groove is along the initial positioning that positioning plate is released, the overall rotation clamping of inner ring, rotate inner ring can drive all hook-shaped clamping pieces synchronous clamping positioning plate, avoid the degree that each bolt is tightened cannot be unified to lead to distribution plate stress concentration, by the constant pre-tightening of spring, so that positioning column penetrates plate body, to adopt the way of bolt to fix locking assembly, avoid fixed clamping distribution plate due to locking assembly movement leading to fixed failure, and positioning plate, positioning column etc. Center symmetry, shell stress balance, no local overload leads to shell deformation or cracking.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic precipitator technology, specifically to a gas redistribution plate mounting structure for an electrostatic precipitator. Background Technology

[0002] Electrostatic precipitators (ESPs) are core equipment in the field of industrial waste gas purification. They efficiently separate tar droplets from gases using a high-voltage electrostatic field and are widely used in industries such as coal chemical, steel metallurgy, and waste incineration. Based on the type of settling electrode, ESPs can be divided into three main categories: concentric circle type, composed of multiple concentric cylinders, where uneven electric field distribution can easily create field strength caves, suitable for early-stage small and medium-sized coal gas purification systems; tubular type, consisting of a single steel pipe and corona wire forming an independent electric field arranged in a tube bundle, suitable for large and medium-sized gas purification plants, such as coke oven gas treatment in coking plants; and honeycomb type, composed of a settling electrode system, a corona electrode system, an airflow distribution and guiding system, an insulation and high-voltage introduction system, a tar collection and flushing system, and a shell and support system, suitable for treating high-concentration tar waste gas, such as waste incineration and biomass power generation.

[0003] In the existing technology, the airflow distribution and guiding system of the honeycomb electrostatic precipitator consists of a gas redistribution plate, an inlet guiding structure, and a uniform air distribution component. Stainless steel bolts are inserted into the pre-drilled bolt holes at the edge of the distribution plate, and spring washers and sealing gaskets are used to tighten them with a torque wrench according to the principle of even tightening diagonally, thereby completing the installation of the distribution plate. In actual assembly, the distribution plate is installed using bolt fastening, requiring each bolt to be tightened individually. This results in inconsistent tightening of each bolt. Bolts that are tightened too much exert excessive pressure on the distribution plate, pressing the plate against the housing. Bolts that are not tightened enough cannot provide sufficient tension, causing the corresponding area of ​​the plate to form a wave-like shape or local dents under the impact of airflow. The deformed plate surface changes the actual position of the openings, causing misalignment of the openings that originally corresponded to the honeycomb tubes. Some honeycomb tubes experience insufficient air intake due to misalignment of the distribution plate openings, while others experience overloaded air intake, resulting in significant deviations in airflow velocity and a sharp drop in tar collection efficiency. Therefore, a gas redistribution plate installation structure for an electrostatic precipitator is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a gas redistribution plate installation structure for an electrostatic precipitator. This structure avoids stress concentration in specific areas of the distribution plate and solves the problem of inconsistent tightening when using bolts for installation. Bolts tightened too much exert excessive pressure on the distribution plate, pushing it towards the housing. Conversely, insufficiently tightened bolts fail to provide adequate tension, causing the plate to undulate or become locally concave under airflow impact. This deformation alters the actual position of the openings, leading to misalignment of the openings that originally corresponded to the honeycomb tubes. Some honeycomb tubes experience insufficient air intake due to misalignment of the distribution plate openings, while others experience overloaded air intake, resulting in significant airflow velocity deviations and a sharp drop in tar collection efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a gas redistribution plate mounting structure for an electrostatic precipitator, comprising a mounting housing mounted on the electrostatic precipitator, wherein the mounting housing is provided with a distribution plate, a positioning component for clamping the distribution plate, and a locking component for fixing the positioning component; The mounting housing includes a housing, an annular support plate is fixedly installed inside the housing, and a plurality of positioning plates are fixedly installed on the annular support plate; The distribution plate includes a plate body installed on an annular support plate. The plate body has a plurality of positioning grooves, and the positioning plates pass through the positioning grooves. A plurality of arc-shaped plates are fixedly installed on the distribution plate, and the arc-shaped plates have arc-shaped grooves. The positioning component includes an inner ring rotatably mounted on a distribution plate. Several hook-shaped clips, a limiting plate, and a connecting frame are fixedly mounted on the outer peripheral wall of the inner ring. One end of each hook-shaped clip passes through the positioning plate, the limiting plate passes through an arc-shaped groove and is slidably connected to the arc-shaped groove, and the connecting frame is fixedly mounted on the limiting plate.

[0006] Furthermore, the locking assembly includes an inner frame installed inside the housing, on which a plurality of positioning posts are fixedly installed, and one end of each positioning post penetrates through the limiting plate and the plate body. Each positioning post is provided with an elastic component for resetting, and the elastic component is installed inside the connecting frame.

[0007] Furthermore, the elastic component includes a fixed plate fixedly installed inside the connecting frame, and the fixed plate is slidably connected to the positioning post. A movable plate located inside the connecting frame is fixedly installed on the positioning post, and the movable plate is slidably connected to the connecting frame. A spring is sleeved on the positioning post, and the opposite sides of the movable plate and the fixed plate are respectively fixedly connected to the two ends of the spring.

[0008] Furthermore, the number of the positioning plate, positioning groove, arc plate, arc groove, hook-shaped clip, limiting plate, connecting frame, positioning post and elastic component is the same and not less than six, and they are all symmetrically distributed around the central axis of the shell.

[0009] Furthermore, the arc of the arc plate is forty degrees, and the hook-shaped fastener is located in the gap between two adjacent arc plates.

[0010] Furthermore, the limiting plate has through holes, and the plate body has positioning holes equal in number to the positioning pins, with one end of each positioning pin penetrating the through hole and extending into the interior of the positioning hole.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The gas redistribution plate installation structure of the electrostatic precipitator, through the guiding cooperation between the positioning plate and the positioning groove, eliminates the need for repeated position adjustments during the hoisting of the distribution plate. The initial positioning is completed by lowering the positioning groove along the positioning plate, and the inner ring rotates and clamps as a whole. Rotating the inner ring can drive all the hook-shaped clamps to clamp the positioning plate synchronously, eliminating the need to tighten each bolt individually and avoiding stress concentration on the distribution plate due to inconsistent tightening of each bolt. 2. The gas redistribution plate installation structure of the electrostatic precipitator uses a constant preload of springs to allow the positioning pins to penetrate the plate body, thereby fixing the locking assembly with pins. This prevents the fixed distribution plate from failing due to movement of the locking assembly, and also ensures that the moving plate and the fixed plate maintain stable spring deformation. 3. The gas redistribution plate installation structure of the electrostatic precipitator is doubly fixed by hook-shaped clamps and spring preload to ensure that the distribution plate does not loosen during operation. Moreover, the positioning plate, positioning column and other components are centrally symmetrical, and the shell is subjected to balanced force, so that there is no deformation or cracking of the shell caused by local overload. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 1 Exploded view; Figure 3 This is a schematic diagram showing the connection of the structural distribution plate, the annular support plate, and the positioning components of this utility model; Figure 4 This is a schematic diagram of the structure of the present utility model. Figure 3 Exploded view; Figure 5 This is a schematic diagram showing the connection of the structural distribution plate, positioning component, and locking component of this utility model; Figure 6 This is a schematic diagram of the structure of the present utility model. Figure 5 Exploded view; Figure 7 This is a schematic diagram of the structural elastic component and positioning post of this utility model.

[0013] In the diagram: 1. Mounting shell; 11. Shell; 12. Annular support plate; 13. Positioning plate; 2. Distribution plate; 21. Plate body; 22. Positioning groove; 23. Arc plate; 24. Arc groove; 3. Positioning component; 31. Inner ring; 32. Hook-shaped clip; 33. Limiting plate; 34. Connecting frame; 4. Locking assembly; 41. Inner frame; 42. Positioning post; 43. Elastic component; 431. Fixed plate; 432. Moving plate; 433. Spring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1: Please refer to Figure 1-7 The gas redistribution plate mounting structure of an electrostatic precipitator in this embodiment includes a mounting housing 1 mounted on the electrostatic precipitator. Inside the mounting housing 1, there is a distribution plate 2, a positioning component 3 for clamping the distribution plate 2, and a locking component 4 for fixing the positioning component 3.

[0016] Example 2: Please refer to Figure 1-7 Based on Embodiment 1, the housing 1 includes a housing 11, an annular support plate 12 is fixedly installed inside the housing 11, and a plurality of positioning plates 13 are fixedly installed on the annular support plate 12. The distribution plate 2 includes a plate body 21 mounted on an annular support plate 12. The plate body 21 has several positioning grooves 22, and the positioning plate 13 passes through the positioning grooves 22. Several arc-shaped plates 23 are fixedly mounted on the distribution plate 2. The arc-shaped plates 23 have arc-shaped grooves 24. The annular support plate 12 effectively supports the plate body 21, and the lateral movement of the distribution plate 2 is restricted by the several positioning plates 13. The positioning component 3 includes an inner ring 31 rotatably mounted on the distribution plate 2. Several hook-shaped clips 32, a limiting plate 33, and a connecting frame 34 are fixedly mounted on the outer peripheral wall of the inner ring 31. One end of the hook-shaped clip 32 passes through the positioning plate 13, the limiting plate 33 passes through the arc-shaped groove 24 and is slidably connected to the arc-shaped groove 24, and the connecting frame 34 is fixedly mounted on the limiting plate 33. The hook-shaped clips 32 are inserted into the positioning plate 13, thereby using the intersection of the hook-shaped clips 32 and the positioning plate 13 to clamp the distribution plate 2 and prevent the distribution plate 2 from moving axially and laterally.

[0017] The arc of the arc plate 23 is 40 degrees, and the hook-shaped clamp 32 is located in the gap between two adjacent arc plates 23. The design of the 40-degree arc of the arc plate 23 and the position of the hook-shaped clamp 32 ensures the reliability of mechanical clamping and reduces the vortex of airflow at the edge of the distribution plate 2.

[0018] In addition, the distribution plate 2 is initially positioned by the positioning groove 22 of the plate body 21 and the annular support plate 12 and positioning plate 13 inside the housing 11, ensuring that the distribution plate 2 is horizontal and the opening is aligned with the honeycomb tube array.

[0019] It should be noted that when the inner ring 31 of the positioning component 3 rotates, the hook-shaped clamp 32 passes through the reserved hole of the positioning plate 13 to form a mechanical clamp, preventing the distribution plate 2 from shifting under the impact of airflow. The limiting plate 33 slides in the arc groove 24 of the arc plate 23, limiting the rotation range of the inner ring 31.

[0020] Using the above technical solution, the plate 21 is slowly hoisted into the housing 11, so that the positioning groove 22 of the plate 21 is aligned with the positioning plate 13 on the annular support plate 12. The plate 21 is slowly lowered onto the annular support plate 12. At this time, the positioning plate 13 passes through the positioning groove 22 on the plate 21. The inner ring 31 is rotated until the limiting plate 33 touches the end of the arc groove 24. At this time, the hook-shaped clip 32 completely passes through the reserved hole of the positioning plate 13, completing the initial fixation.

[0021] Example 3: Please refer to Figure 1-7 Based on Embodiment 2, the locking assembly 4 includes an inner frame 41 installed inside the housing 11. Several positioning posts 42 are fixedly installed on the inner frame 41, and one end of the positioning post 42 passes through the limiting plate 33 and the plate 21. The positioning post 42 is provided with an elastic component 43 for resetting, and the elastic component 43 is installed inside the connecting frame 34.

[0022] The elastic component 43 includes a fixed plate 431 fixedly installed inside the connecting frame 34, and the fixed plate 431 is slidably connected to the positioning post 42. A movable plate 432 located inside the connecting frame 34 is fixedly installed on the positioning post 42, and the movable plate 432 is slidably connected to the connecting frame 34. A spring 433 is sleeved on the positioning post 42, and the opposite sides of the movable plate 432 and the fixed plate 431 are respectively fixedly connected to the two ends of the spring 433. Under the action of the spring 433, the fixed plate 431 and the movable plate 432 of the elastic component 43 apply a constant pressure to the positioning post 42, avoiding local stress concentration caused by uneven tightness of traditional bolts.

[0023] In addition, the number of positioning plates 13, positioning grooves 22, arc plates 23, arc grooves 24, hook-shaped clips 32, limiting plates 33, connecting frames 34, positioning posts 42, and elastic components 43 are the same and not less than six. They are all symmetrically distributed around the central axis of the shell 11. The positioning plates 13, hook-shaped clips 32, and other components are symmetrically distributed around the central axis to ensure that the distribution plate 2 is subjected to uniform force and to avoid deformation due to single-point overload.

[0024] It should be noted that the limiting plate 33 has through holes, and the plate 21 has positioning holes equal in number to the positioning pins 42. One end of the positioning pin 42 passes through the through hole and extends into the interior of the positioning hole. The positioning pin 42 passing through the positioning hole ensures the coaxiality of the distribution plate 2 and the inner frame 41, and improves the consistency of the preload of the spring 433. The cooperation between the through hole and the positioning hole allows the positioning pin 42 to slide slightly under the action of the spring 433, avoiding local stress overload caused by installation errors.

[0025] Using the above technical solution, when the limiting plate 33 touches the end of the arc groove 24, the positioning post 42 rotates to align with the positioning hole, the spring 433 in the elastic component 43 extends and resets, causing the moving plate 432 to slide along the connecting frame 34 until the positioning post 42 is inserted into the positioning hole in the plate body 21, thereby locking the position of the entire locking assembly 4.

[0026] The working principle of the above embodiments is as follows: In the gas redistribution plate mounting structure of the electrostatic tar precipitator, during assembly, the plate body 21 of the distribution plate 2 is placed on the annular support plate 12, so that the positioning plate 13 passes through the positioning groove 22 to complete the radial preliminary positioning and ensure the levelness of the plate body 21. At this time, the spring 433 is in a compressed state. Rotate the inner ring 31 and drive the elastic component 43 to rotate synchronously until the limiting plate 33 touches the end of the arc groove 24, and the hook-shaped clamp 32 completely penetrates the reserved hole of the positioning plate 13. At this time, the hook-shaped clamp 32 evenly clamps the positioning plate 13 in the circumference, restricting the vertical displacement of the plate 21 and completing the initial fixation. When the limiting plate 33 touches the end of the arc groove 24, the positioning post 42 rotates to align with the positioning hole, the spring 433 in the elastic component 43 extends and resets, causing the moving plate 432 to slide along the connecting frame 34 until the positioning post 42 is inserted into the positioning hole in the plate body 21, thereby locking the position of the entire locking assembly 4 and thus completing the quick installation of the distribution plate 2.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas redistribution plate mounting structure for an electrostatic precipitator, comprising a mounting housing (1) mounted on the electrostatic precipitator, characterized in that: The mounting housing (1) is provided with a distribution plate (2), a positioning component (3) for clamping the distribution plate (2), and a locking component (4) for fixing the positioning component (3). The mounting housing (1) includes a housing (11), and an annular support plate (12) is fixedly installed inside the housing (11). Several positioning plates (13) are fixedly installed on the annular support plate (12). The distribution plate (2) includes a plate body (21) installed on an annular support plate (12). The plate body (21) has a plurality of positioning grooves (22), and a positioning plate (13) passes through the positioning grooves (22). The distribution plate (2) has a plurality of arc plates (23) fixedly installed on it, and the arc plates (23) have arc grooves (24). The positioning component (3) includes an inner ring (31) rotatably mounted on the distribution plate (2). Several hook-shaped clips (32), a limiting plate (33) and a connecting frame (34) are fixedly mounted on the outer peripheral wall of the inner ring (31). One end of the hook-shaped clip (32) passes through the positioning plate (13), the limiting plate (33) passes through the arc groove (24) and is slidably connected with the arc groove (24), and the connecting frame (34) is fixedly mounted on the limiting plate (33).

2. The gas redistribution plate mounting structure for an electrostatic precipitator according to claim 1, characterized in that: The locking assembly (4) includes an inner frame (41) installed inside the housing (11). Several positioning posts (42) are fixedly installed on the inner frame (41), and one end of the positioning post (42) passes through the limiting plate (33) and the plate body (21). The positioning post (42) is provided with an elastic component (43) for resetting, and the elastic component (43) is installed inside the connecting frame (34).

3. The gas redistribution plate mounting structure of an electrostatic precipitator according to claim 2, characterized in that: The elastic component (43) includes a fixed plate (431) fixedly installed inside the connecting frame (34), and the fixed plate (431) is slidably connected to the positioning post (42). A movable plate (432) located inside the connecting frame (34) is fixedly installed on the positioning post (42), and the movable plate (432) is slidably connected to the connecting frame (34). A spring (433) is sleeved on the positioning post (42), and the opposite sides of the movable plate (432) and the fixed plate (431) are respectively fixedly connected to the two ends of the spring (433).

4. A gas re-distributor plate mounting structure for an electrostatic precipitator according to claim 2, characterized by: The number of the positioning plate (13), positioning groove (22), arc plate (23), arc groove (24), hook-shaped clip (32), limiting plate (33), connecting frame (34), positioning post (42) and elastic component (43) is the same and not less than six, and they are all symmetrically distributed around the central axis of the shell (11).

5. The gas redistribution plate mounting structure for an electrostatic precipitator according to claim 1, characterized in that: The arc of the arc plate (23) is forty degrees, and the hook-shaped clip (32) is located in the gap between two adjacent arc plates (23).

6. A gas re-distributor plate mounting structure for an electrostatic precipitator according to claim 2, characterized by: The limiting plate (33) has a through hole, and the plate body (21) has a number of positioning holes equal to the number of positioning pins (42), with one end of the positioning pin (42) penetrating through the through hole and extending into the interior of the positioning hole.

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