A kind of denitration catalyst layer airflow distribution flow guide device

Abstract

The utility model discloses a kind of denitration catalyst layer airflow distribution flow guide devices, it is related to denitration catalyst layer airflow guide technical field, device includes upper rack and flow guide component, the inside of upper rack is provided with the driving assembly for the flow gap adjustment, and driving assembly includes fixed plate, electric push rod and adapter mounting plate, the outer surface of fixed plate is provided with electric push rod, and the output end of electric push rod is installed with adapter mounting plate, the side of adapter mounting plate is provided with rack gear, and rack gear outer surface is engaged with gear installation, the denitration catalyst layer airflow distribution flow guide device of the present application is moved by the design of driving assembly, can drive adapter mounting plate and the rack gear connected with it, the position of rack gear can drive gear to rotate due to engagement, so that shaft and flow guide component connected with gear follow, it is convenient to adjust the separation gap of two groups of flow guide component, synchronous adjustment, it is conducive to the adaptation of different airflow speed.

Description

Technical Field

[0001] This utility model relates to the field of airflow guidance technology for denitrification catalyst layers, specifically a denitrification catalyst layer airflow distribution and guidance device. Background Technology

[0002] In an SCR denitrification system, the reaction efficiency and service life of the catalyst bed directly determine the overall denitrification effect and operating cost. When industrial flue gas flows in the flue, it is easily affected by the flue's bends, diameter changes, and irregular cross-sections, which can lead to flow deviation, eddies, and uneven flow velocity. Therefore, it is necessary to install an airflow distribution and guiding device 1-3 meters directly upstream of the catalyst bed in the SCR reactor to ensure that the airflow enters the catalyst bed at a uniform velocity after initial rectification.

[0003] However, existing denitrification catalyst layer airflow distribution guiding devices cannot adjust the guiding gaps, making it difficult to adapt to airflows with different velocities. Utility Model Content

[0004] The purpose of this invention is to provide a denitrification catalyst layer airflow distribution and guiding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A denitrification catalyst layer airflow distribution and guiding device includes an upper frame and a guiding assembly. The upper frame is internally equipped with a driving assembly for adjusting the guiding gap. The driving assembly includes a fixed plate, an electric push rod, and an adapter mounting plate. The outer surface of the fixed plate is provided with an electric push rod, and the output end of the electric push rod is mounted with the adapter mounting plate. A rack is provided on one side of the adapter mounting plate, and a gear is meshed on the outer surface of the rack. A rotating shaft is provided in the middle of one side of the gear. The guiding assembly for guiding the flow is located at the end of the rotating shaft. The guiding assembly includes a first guiding element, and a rotating shaft is provided on one side of the first guiding element.

[0006] Furthermore, the flow guiding assembly also includes a built-in flow guiding plate and a second flow guiding component, and the second flow guiding component is slidably installed on one side of the outside of the built-in flow guiding plate.

[0007] Furthermore, both the first and second flow guides have hollow internal structures, and both have slidably mounted built-in flow guide plates.

[0008] Furthermore, a lower frame is fixedly installed at the bottom of the upper frame by bolts, and a flow guiding component is provided inside the lower frame.

[0009] Furthermore, the flow guiding components are distributed at equal intervals with respect to the surface of the upper or lower frame, and the interior of the upper frame has a hollow structure.

[0010] Furthermore, the gears and guide members are distributed in a one-to-one correspondence, and the gears are located inside the upper frame.

[0011] Furthermore, an mounting plate is fixedly installed on one end of the upper frame by bolts, and two sets of the upper frame are provided.

[0012] Furthermore, the lower frame is provided in two sets, and a flow guiding component is installed between the two sets of lower frames.

[0013] The airflow distribution and guiding device for the denitrification catalyst layer provided by this utility model has the following beneficial effects: 1. This utility model, through the design of the drive component, can drive the adapter mounting plate and the rack connected to it to move. The positional movement of the rack can drive the gear to rotate due to meshing, thereby causing the rotating shaft and the flow guide component connected to the gear to move accordingly. This facilitates the adjustment of the separation gap between the upper and lower sets of flow guide components, and the synchronous adjustment is beneficial for adapting to different airflow speeds.

[0014] This utility model, through the design of the flow guiding component, can adjust the length of the flow guiding component consisting of flow guiding component one, built-in flow guiding plate and flow guiding component two, so as to facilitate the adaptation to the inner wall of flue of different sizes and reduce installation limitations. The inner walls of the upper and lower frames are equally spaced with flow guiding components. The flow guiding components in the upper and lower frames are vertically distributed. The separation aperture of the upper and lower sets of flow guiding components is matched according to the airflow velocity, which can effectively break up large eddies and ensure that the airflow can rise at a uniform speed. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the airflow distribution and guiding device for the denitrification catalyst layer in this embodiment of the present invention; Figure 2 This is a schematic diagram of the airflow distribution and guiding device for the denitrification catalyst layer in an embodiment of this utility model from another perspective. Figure 3 This is a schematic diagram of the main support frame structure of the airflow distribution and guiding device for the denitrification catalyst layer in this embodiment of the present invention.

[0017] In the diagram: 1. Upper frame; 2. Lower frame; 3. Mounting plate; 4. Flow guide assembly; 401. Flow guide component one; 402. Built-in flow guide plate; 403. Flow guide component two; 5. Drive assembly; 501. Fixing plate; 502. Electric push rod; 503. Adapter mounting plate; 6. Rotating shaft; 7. Gear; 8. Rack. Detailed Implementation

[0018] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0022] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0023] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0024] like Figure 1 and Figure 3 As shown, the denitrification catalyst layer airflow distribution guiding device provided in this application includes an upper frame 1, a lower frame 2, a mounting plate 3, a guiding assembly 4, a first guiding component 401, an internal guiding plate 402, a second guiding component 403, a drive assembly 5, a rotating shaft 6, a gear 7, and a rack 8. The upper frame 1 is internally equipped with a drive assembly 5 for adjusting the guiding gap. The drive assembly 5 includes a fixed plate 501, an electric push rod 502, and a transition mounting plate 503. A mounting plate 3 is bolted to one end of the upper frame 1, and the upper frame 1 has two sets of mounting plates 3. An electric push rod 502 is mounted on the outer surface of the fixed plate 501, and a transition mounting plate 503 is mounted on the output end of the electric push rod 502. A rack 8 is mounted on one side of the transition mounting plate 503. Gears 7 are meshed on the outer surface of rack 8. Gears 7 and guide members 401 are distributed in a one-to-one correspondence. Gears 7 are located inside the upper frame 1. A rotating shaft 6 is provided in the middle of one side of gear 7. A guide assembly 4 for guiding the flow is provided at the end of the rotating shaft 6. The guide assembly 4 includes guide members 401, and a rotating shaft 6 is provided on one side of guide members 401. In addition, the activation of electric push rod 502 by controller can drive the adapter mounting plate 503 and the rack 8 connected to it to move. The position movement of rack 8 can drive gear 7 to rotate due to meshing. Thus, the rotating shaft 6 and the guide assembly 4 connected to gear 7 move accordingly, which is convenient for adjusting the separation gap between the upper and lower sets of guide assemblies 4. Synchronous adjustment is beneficial for adapting to different airflow speeds.

[0025] like Figure 1 and Figure 2As shown, the flow guiding assembly 4 also includes a built-in flow guiding plate 402 and a second flow guiding component 403. The second flow guiding component 403 is slidably installed on one side of the built-in flow guiding plate 402. Both the first flow guiding component 401 and the second flow guiding component 403 have hollow internal structures, and both the first flow guiding component 401 and the second flow guiding component 403 are slidably equipped with the built-in flow guiding plate 402. The bottom of the upper frame 1 is fixedly installed with a lower frame 2 by bolts, and the flow guiding assembly 4 is installed inside the lower frame 2. There are two sets of lower frames 2, and the flow guiding assembly 4 is installed between the two sets of lower frames 2. The side walls of the upper frame 1 and the lower frame 2 are fixedly installed in the flue area by bolts, and the first flow guiding component 401 and the second flow guiding component 403 slide horizontally about the built-in flow guiding plate 402. This allows the length of the flow guiding component composed of the first flow guiding component 401, the built-in flow guiding plate 402, and the second flow guiding component 403 to be adjusted, making it easy to adapt to flue inner walls of different sizes and reducing installation limitations.

[0026] It is understandable that by equidistantly arranging the above-mentioned flow guiding components 4 on the inner walls of the upper frame 1 and the lower frame 2, the flow guiding components 4 in the two sets of upper frame 1 and lower frame 2 are vertically distributed. The separation apertures of the two sets of flow guiding components 4 are matched according to the airflow velocity, which can effectively break up large eddies and ensure that the airflow can rise at a uniform speed. The flow guiding components 4 are equidistantly distributed about the surface of the upper frame 1 or the lower frame 2, and the interior of the upper frame 1 has a hollow structure.

[0027] In summary, this denitrification catalyst layer airflow distribution and guiding device firstly... Figures 1-3 In the structure shown, during use, the side walls of the upper frame 1 and the lower frame 2 are fixedly installed in the flue area by bolts. The first guide component 401 and the second guide component 403 slide horizontally about the built-in guide plate 402, thereby adjusting the length of the guide component consisting of the first guide component 401, the built-in guide plate 402, and the second guide component 403. This facilitates adaptation to flue inner walls of different sizes, reducing installation limitations. The inner walls of both the upper frame 1 and the lower frame 2 are equidistantly provided with guide components 4. The guide components 4 in the upper and lower sets of the upper frame 1 and the lower frame 2... The flow components 4 are vertically distributed, and the apertures of the upper and lower sets of flow guide components 4 are matched according to the airflow velocity, which can effectively break up large eddies. In addition, the controller controls the activation of the electric push rod 502, which can drive the adapter mounting plate 503 and the rack 8 connected to it to move. The position movement of the rack 8 can drive the gear 7 to rotate due to meshing, so the rotating shaft 6 connected to the gear 7 and the flow guide components 4 follow suit, which makes it easy to adjust the gap between the upper and lower sets of flow guide components 4. The synchronous adjustment is beneficial to adapt to different airflow velocities.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A denitrification catalyst bed airflow distribution and guiding device, comprising an upper frame (1) and a guiding assembly (4), characterized in that, The upper frame (1) is provided with a drive assembly (5) for adjusting the flow guide gap. The drive assembly (5) includes a fixed plate (501), an electric push rod (502), and an adapter mounting plate (503). The outer surface of the fixed plate (501) is provided with an electric push rod (502), and the output end of the electric push rod (502) is mounted with an adapter mounting plate (503). A rack (8) is provided on one side of the adapter mounting plate (503), and a gear (7) is meshed on the outer surface of the rack (8). A rotating shaft (6) is provided in the middle of one side of the gear (7). The flow guide assembly (4) for guiding the flow is located at the end of the rotating shaft (6). The flow guide assembly (4) includes a flow guide component (401), and a rotating shaft (6) is provided on one side of the flow guide component (401).

2. The denitrification catalyst bed airflow distribution and guiding device according to claim 1, characterized in that, The flow guiding assembly (4) further includes a built-in flow guiding plate (402) and a flow guiding component two (403), and the flow guiding component two (403) is slidably installed on the outer side of the built-in flow guiding plate (402).

3. The denitrification catalyst layer airflow distribution and guiding device according to claim 2, characterized in that, Both the first flow guide (401) and the second flow guide (403) have a hollow structure inside, and both the first flow guide (401) and the second flow guide (403) are slidably provided with built-in flow guide plates (402).

4. The denitrification catalyst bed airflow distribution and guiding device according to claim 1, characterized in that, The bottom of the upper frame (1) is fixedly installed with a lower frame (2) by bolts, and the lower frame (2) is provided with a flow guide assembly (4).

5. The denitrification catalyst bed airflow distribution and guiding device according to claim 1, characterized in that, The flow guiding components (4) are distributed at equal distances with respect to the surface of the upper frame (1) or the lower frame (2), and the interior of the upper frame (1) has a hollow structure.

6. The denitrification catalyst bed airflow distribution and guiding device according to claim 1, characterized in that, The gear (7) and the guide component (401) are distributed in a one-to-one correspondence, and the gear (7) is located inside the upper frame (1).

7. The denitrification catalyst bed airflow distribution and guiding device according to claim 1, characterized in that, The upper frame (1) has a mounting plate (3) fixedly installed on one side of its end by bolts, and the upper frame (1) has two sets.

8. The denitrification catalyst layer airflow distribution and guiding device according to claim 4, characterized in that, The lower frame (2) is provided in two sets, and a flow guide assembly (4) is installed between the two sets of lower frames (2).

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