A compact filter element installation method and structure

Abstract

The present invention relates to the technical field of dust removal, and particularly relates to a compact filter element installation method and structure, including a filter element, wherein the filter element is arranged on a mounting plate, the filter element is fixedly connected to the mounting plate, and several of the filter elements are arranged in a staggered manner in height on the mounting plate. The purpose is to arrange the filter elements in a staggered manner in height, so that the flanges connected to the filter elements are superimposed in space, avoiding the distance interval between the flanges, shortening the center distance between the filter elements, greatly improving the effective utilization rate of the space on the mounting plate, and further reducing the volume of the entire device.

Description

Technical Field

[0001] The present invention belongs to the technical field of dust removal, and particularly relates to a compact filter element installation method and structure. Background Art

[0002] When performing industrial dust removal, metal filter cartridges are often used. The common method is to arrange multiple metal filter cartridges and assemble them on a flower plate to form an overall dust removal device. However, in the traditional dust removal industry, when using filter cartridges for dust removal, in order to minimize the volume of the overall production of the dust removal device, the usual practice is to install special-shaped flanges on the filter cartridges, so as to reduce the center distance between the filter cartridges, thereby reducing the distance between the filter cartridges installed on the flower plate, so as to achieve the purpose of reducing the equipment size, reducing the equipment weight, and reducing the equipment cost.

[0003] However, due to the limitation of the width of the flange on the filter cartridge installed on the flower plate, the distance by which the center distance between the filter cartridges can be reduced is limited. If you want to further reduce the center distance, you can only obtain it by reducing the flange size. However, this method will greatly reduce the strength of the flange on the filter cartridge, making the flange unable to meet the usage requirements during use. Summary of the Invention

[0004] In order to further reduce the equipment size, reduce the equipment weight, and reduce the equipment cost during the production of the dust removal device, the present invention provides a compact filter element installation method and structure. This method arranges the filter cartridges on the flower plate in a high-low staggered manner, so that the flanges connected to the filter cartridges can be arranged in a staggered manner to form a three-dimensional arrangement structure, thereby reducing the center distance between the filter cartridges and achieving the purpose of reducing the equipment size.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A compact filter element installation method includes the following steps:

[0007] 1) Set corresponding installation holes on the installation plate according to the installation positions of all filter elements;

[0008] 2) Weld flanges with different heights staggeredly on one surface of the installation plate, and at the same time weld flange pressing plates on the filter elements;

[0009] 3) Place the filter element with the flange pressing plate into the installation plate from the flange, so that the flange pressing plate can be placed on the flange, and connect the flange pressing plate and the flange to form a sealing structure.

[0010] Preferably, the specific operation of welding flanges with different welding heights in step 2) is as follows: First, place the shorter flange at the corresponding mounting holes on the mounting plate. After the center of the tooling is aligned, intermittently weld the contact position between the outer side of the shorter flange and the mounting plate to form a fixed structure. Then, place the taller flange at the corresponding mounting holes on the mounting plate and spot-weld at the position where the outer side of the taller flange contacts the mounting plate. After all the flanges are fixed on the mounting plate, perform repair welding at the position where the inner side of the taller flange contacts the mounting plate to form a seal, and the repair welding method is continuous welding.

[0011] Preferably, in step 3), the flange pressing plate and the flange are connected by bolts. The bolt connection method is that the nut on the bolt is pushed from the side of the flange towards the direction of the mounting plate, and a cap nut is used to fasten the bolt.

[0012] A compact filter element mounting structure includes a filter element, the filter element is arranged on a mounting plate, the filter element is fixedly connected with the mounting plate, and several filter elements are arranged on the mounting plate in a staggered height pattern.

[0013] Preferably, the filter element includes a taller filter element and a shorter filter element. One end of the taller filter element is arranged inside the flange, the flange is fixedly connected with a gasket cylinder, the gasket cylinder is sleeved outside the taller filter element, and the other end of the gasket cylinder is fixedly connected with the mounting plate.

[0014] Preferably, one end of the shorter filter element is arranged inside the flange, and the flange is fixedly connected with the mounting plate.

[0015] Preferably, a flange pressing plate is fixedly connected to one end of the taller filter element and / or the shorter filter element arranged inside the flange, and the flange pressing plate is cooperatively connected with the flange.

[0016] Preferably, the flange pressing plate is provided with a connection hole, and the position on the flange that cooperatively connects with the connection hole is a first groove, and the opening of the first groove is arranged on the circumferential side surface of the flange.

[0017] Preferably, a counterbore is arranged on the flange at the position of the first groove, the counterbore is arranged on the side surface close to the mounting plate, and the width of the counterbore is greater than the width of the first groove.

[0018] Preferably, a second groove is correspondingly arranged at the position of the connection hole on the flange pressing plate, the second groove matches the first groove, and the opening position of the second groove is the same as the opening position of the first groove.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1) The present invention breaks the conventional installation mode where filter elements are arranged side by side on the mounting plate, extends the arrangement of filter elements from a planar system to a spatial system, and by arranging the filter elements in a staggered height pattern, the flanges connected to the filter elements are superimposed in space, avoiding the distance interval between flanges, shortening the center distance between filter elements, greatly improving the effective utilization rate of the space on the mounting plate, and thus reducing the volume of the entire device.

[0021] 2) First, the mounting plate is welded to the flange and the gasket cylinder. After the welding is completed, the overall hoisting of the mounting plate is carried out. The welding of the flange to the mounting plate and the welding of the filter cylinder to the flange pressing plate can be carried out simultaneously, shortening the installation time of the filter cylinder and accelerating the production speed.

[0022] 3) The flange adopts a counterbore design, and the bolt can be installed from the side, thus ensuring the firm connection of the filter cylinders arranged in a staggered height pattern, avoiding adding bolt holes on the mounting plate again, ensuring the sealing effect, and providing an effective seal for the filter cylinder to perform filtration.

[0023] 4) The AB surface welding technology is adopted, that is, in the welding process, the short flange is continuously welded on the upward side of the perforated plate first, and then the high flange is fixed by spot welding. After all the flanges are fixed, continuous repair welding is carried out by extending from the downward side of the perforated plate to form an airtight structure, further ensuring the sealing effect of the filter element.

[0024] 5) The filter element is detachably connected to the flange by bolts. After the filter element fails in use, the entire filter element can be directly removed upward by removing the bolts, which is convenient for the later recovery and replacement of the filter element, avoiding the need to cut the filter element to remove it in the traditional method, saving manual operation and accelerating the later maintenance speed. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is a schematic structural diagram of the flange.

[0027] In the figure: 1 - mounting plate, 2 - high filter element, 3 - low filter element, 4 - gasket cylinder, 5 - flange, 6 - flange pressing plate, 7 - first groove, 9 - counterbore. Detailed Embodiment

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples are used to further describe the present invention in detail. It should be understood that the specific examples described here are only used to explain the present invention and are not used to limit the present invention.

[0029] In this embodiment, taking the mounting plate size of 2200 mm and the filter element diameter of 130 mm as an example for the installation of a compact filter element, using the installation method of the present invention, the number of filter elements that can be installed on the mounting plate is as many as 121, while the number of filter elements that can be installed on a 2200-mm mounting plate by the traditional flat installation method is only 70; using the structure of the present invention for dust treatment, the hourly treatment capacity of the dust-containing gas can be increased by 70% compared with the traditional flat installation method.

[0030] A method for installing a compact filter element, comprising the following steps:

[0031] 1) According to the installation positions of all filter elements, set corresponding installation holes on the mounting plate 1, and the hole-opening method can adopt the existing method;

[0032] 2) Intermittently weld flanges 5 with different heights on one surface of the mounting plate 1, that is, a short flange 5 is arranged between two high flanges 5. At the same time, weld flange pressing plates 6 on the filter element. The steps of welding flanges on the mounting plate 1 and welding flange pressing plates 6 on the filter element can be carried out simultaneously, thereby improving the production and construction efficiency;

[0033] The specific operation of welding flanges 5 with different heights is as follows: First, place the short flange 5 at the corresponding opening on the mounting plate 1 by using a tooling for centering, and intermittently weld the contact position between the outer side surface of the short flange 5 and the mounting plate 1 to form a fixed structure. The intermittent welding method is right-angle intermittent welding; then place the high flange 5 at the corresponding opening on the mounting plate 1 by using a tooling for centering, and spot-weld at the position where the outer side surface of the high flange 5 contacts the mounting plate 1. The spot welding can preliminarily position the high flange 5 to ensure that the high flange 5 will not be misaligned due to welding during subsequent welding; after all flanges 5 are fixed on the mounting plate 1, perform repair welding at the position where the inner side surface of the high flange 5 contacts the mounting plate 1 to form a seal. The repair welding method is right-angle continuous welding.

[0034] During the welding operation, the intermittent welding of the short flange 5 can be directly carried out on the mounting surface of the short flange 5; for the repair welding of the inner side surface of the high flange 5, it can extend into the installation hole from the other side of the mounting plate 1 (the other side opposite to the mounting surface) for repair welding.

[0035] 3) Place the filter element with a flange pressing plate 6 into the mounting plate 1 from the flange 5, so that the flange pressing plate 6 can be placed on the flange 5, and connect the flange pressing plate 6 and the flange 5 to form a sealing structure.

[0036] In step 3), after placing a sealing ring between the flange pressing plate 6 and the flange 5, they are bolted together to ensure the sealing of the entire structure. The bolting method is that the nut on the bolt is pushed from the side of the flange 5 towards the mounting plate 1, and a cap nut is used to fasten the bolt. Connecting the bolt from the side can avoid drilling holes in the mounting plate 1 again or welding nuts on the mounting plate 1, improving the sealing performance on the mounting plate 1 and saving the labor and construction time consumed by welding multiple nuts. Overall, it improves the installation speed of the entire equipment and accelerates the construction process.

[0037] As Figure 1-2 shown, a compact filter element mounting structure, which is suitable for mounting on a dust removal device, specifically includes a filter element. The filter element is arranged on the mounting plate 1, and the filter element is fixedly connected to the mounting plate 1. Several of the filter elements are arranged in a staggered high and low pattern on the mounting plate 1. By arranging the filter elements in a staggered high and low pattern, the traditional planar arrangement is changed to a three-dimensional arrangement, thereby shortening the center distance between the filter elements and further reducing the size of the entire device.

[0038] In this embodiment, taking a filter element with a diameter of 130 mm as an example, using the structure of the present invention, the distance between the center holes for mounting the filter elements can be reduced from the original 200 mm to 155 mm, greatly compressing the size of the mounting plate 1 and achieving the miniaturization of the overall device.

[0039] The filter element includes a high filter element 2 and a low filter element 3. One end of the high filter element 2 is arranged inside the flange 5, and the flange 5 is fixedly connected to the gasket cylinder 4. The flange 5 and the gasket cylinder 4 are connected by welding. The gasket cylinder 4 is sleeved outside the high filter element 2, and the other end of the gasket cylinder 4 is fixedly connected to the mounting plate 1. Since the wall thickness of the gasket cylinder 4 is smaller than the width of the flange 5, during the process of staggering the high filter element 2 and the low filter element 3, a part of the flange 5 can overlap, thereby reducing the center distance between the filter elements.

[0040] One end of the low filter element 3 is arranged inside the flange 5, and the flange 5 is fixedly connected to the mounting plate 1. The flange 5 used in conjunction with the low filter element 3 can be directly welded to the mounting plate 1 to ensure its stability.

[0041] One end of the high filter element 2 and / or the low filter element 3 arranged inside the flange 5 is fixedly connected with a flange pressing plate 6, and the flange pressing plate 6 is in mating connection with the flange 5. The connection method between the high filter element 2 and the low filter element 3 and the flange pressing plate 6 is welding. The flange pressing plate 6 and the flange 5 are used in combination to ensure the connection effect. A sealing ring is arranged between the flange pressing plate 6 and the flange 5. In this embodiment, the sealing ring is preferably a ceramic fiber gasket to ensure the sealing effect.

[0042] The flange pressing plate 6 is provided with connection holes, and the position on the flange 5 that is in mating connection with the connection holes is a first groove 7. The opening of the first groove 7 is provided on the circumferential side surface of the flange 5. During connection, the bolt enters from the opening of the first groove 7, then passes through the connection holes on the flange pressing plate 6, and is fixed using a nut. A further technical solution is that the nut can be a cap nut, so as to ensure that metal dust does not enter the connection part of the bolt, which may cause the connection of the bolt to fail and extend the service life of the bolt.

[0043] A counterbore 9 is provided on the flange 5 at the position of the first groove 7. The counterbore 9 is located on the side surface close to the mounting plate 1, and the width of the counterbore 9 is greater than the width of the first groove 7. After the bolt enters the first groove 7 from the side, the nut on the bolt enters the counterbore 9, so as to ensure that the end face of the flange 5 used in cooperation with the low filter element 3 can be kept flush and directly welded to the mounting plate 1, reducing the installation difficulty of welding.

[0044] A further technical solution is that a second groove is correspondingly provided at the position of the connection holes on the flange pressing plate 6. The second groove matches the first groove 7, and the opening position of the second groove is the same as the opening position of the first groove 7. A second groove can also be correspondingly provided at the position of the connection holes on the flange pressing plate 6, so that the bolt can be directly pushed in from the side for connection, and there is no need to consider the problem of bolt displacement during processing, providing guarantee for the rapid connection / dismantling of the bolt.

[0045] The above embodiments are preferred embodiments. It should be noted that the above preferred embodiments should not be regarded as a limitation of the invention. The protection scope of the invention should be subject to the scope defined by the claims. For those of ordinary skill in the art in this technical field, without departing from the spirit and scope of the invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as within the protection scope of the invention.

Claims

1. A compact filter element installation method, characterized in that, It includes the following steps: 1) Set corresponding mounting holes on the mounting plate (1) according to the installation positions of all filter elements; 2) Interleavingly weld flanges (5) with different heights on one surface of the mounting plate (1), and at the same time weld flange pressing plates (6) on the filter elements; 3) Place the filter element with the flange pressing plate (6) onto the mounting plate (1) from the flange (5) so that the flange pressing plate (6) can be placed on the flange (5), and connect the flange pressing plate (6) and the flange (5) to form a sealing structure; by arranging the filter elements in a staggered high-low manner, the flanges connected to the filter elements are superimposed in space.

2. The compact filter element installation method according to claim 1, characterized in that: The specific operation of welding the flanges (5) with different heights in step 2) is as follows: First, place the short flange (5) at the corresponding mounting hole on the mounting plate (1), and after the center of the tooling is aligned, intermittently weld the contact position between the outer side surface of the short flange (5) and the mounting plate (1) to form a fixed structure; then place the tall flange (5) at the corresponding mounting hole on the mounting plate (1), and spot-weld at the position where the outer side surface of the tall flange (5) contacts the mounting plate (1); after all the flanges (5) are fixed on the mounting plate (1), perform repair welding at the position where the inner side surface of the tall flange (5) contacts the mounting plate (1) to form a seal, and the repair welding method is continuous welding.

3. The compact filter element installation method according to claim 2, wherein: In step 3), the flange pressing plate (6) and the flange (5) are connected by bolts. The connection method of the bolts is that the nuts on the bolts are pushed from the side of the flange (5) towards the direction of the mounting plate (1), and a cap nut is used to fasten the bolts.

4. A compact filter element installation structure, comprising a filter element, characterized in that: The filter element is arranged on the mounting plate (1), and the filter element is fixedly connected to the mounting plate (1). Several filter elements are arranged in a staggered high-low manner on the mounting plate (1); The filter element includes a high filter element (2) and a low filter element (3). One end of the high filter element (2) is arranged inside the flange (5). The flange (5) is fixedly connected to the gasket cylinder (4). The gasket cylinder (4) is sleeved outside the high filter element (2), and the other end of the gasket cylinder (4) is fixedly connected to the mounting plate (1); One end of the low filter element (3) is arranged inside the flange (5), and the flange (5) is fixedly connected to the mounting plate (1); One end of the high filter element (2) and / or the low filter element (3) arranged inside the flange (5) is fixedly connected with a flange pressing plate (6), and the flange pressing plate (6) is cooperatively connected with the flange (5); during the process of staggering the high filter element (2) and the low filter element (3), a part of the flange (5) is overlapped.

5. The compact filter element mounting structure according to claim 4, characterized in that: The flange pressing plate (6) is provided with connection holes, and the position on the flange (5) that cooperatively connects with the connection holes is a first groove (7). The opening of the first groove (7) is arranged on the circumferential side surface of the flange (5).

6. The compact filter element mounting structure according to claim 5, characterized in that: A counterbore (9) is arranged on the flange (5) at the position of the first groove (7). The counterbore (9) is arranged on the side surface close to the mounting plate (1), and the width of the counterbore (9) is greater than the width of the first groove (7).

7. The compact filter element mounting structure according to claim 6, wherein: A second groove is correspondingly arranged at the position of the connection hole on the flange pressing plate (6). The second groove matches the first groove (7), and the opening position of the second groove is the same as the opening position of the first groove (7).

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