Flange type butt joint filter cartridge

Abstract

The utility model relates to a flange type butt joint filter cartridge which comprises an upper flange cartridge body, a lower closed cartridge body, a butt joint assembly and a tubesheet assembly, the upper end of the upper flange cylinder is a non-porous flange, and the lower end of the upper flange cylinder is a non-porous conical flange; the upper part of the lower closed cylinder body is an open end, the lower part of the lower closed cylinder body is a closed end, the open end is a non-porous conical flange, and the size of the non-porous conical flange is consistent with that of the lower end flange of the upper flange cylinder body; the butt joint assembly is used for connecting the upper flange barrel and the lower closed barrel. The butt joint assembly comprises the supporting ring, the clamping circular ring, the flange gasket and the like, through the concave-convex groove design and the use of the high-temperature ceramic adhesive, the sealing performance is remarkably improved, and the leakage risk is reduced. Due to the split type filter cartridge design, when a project needs to be expanded or expanded, the length and the number of the filter cartridges can be flexibly adjusted, the whole system does not need to be redesigned, and the adaptability and the flexibility of the system are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of fiber filter cartridge technology, specifically to a flange-type docking filter cartridge. Background Technology

[0002] Dust and nitrogen integrated ultra-clean technology is a major environmental protection technology and equipment encouraged by the state. Because its core component, the ceramic filter cartridge, has the characteristics of high dust removal accuracy, high temperature resistance, corrosion resistance, and long service life, it has been increasingly widely used in flue gas treatment in industries such as thermal power, metallurgy, coking, and glass kilns in recent years.

[0003] Currently, domestically produced filter cartridges are all integral designs, primarily 3 to 4 meters in length. To achieve the required filtration area, the number of filter cartridges needs to be increased, which enlarges the overall size of the integrated dust and filtration equipment and results in a large initial investment. Reducing investment would require manufacturing longer filter cartridges, but the high difficulty in manufacturing, transporting, and installing longer cartridges makes this practically impossible. Furthermore, longer filter cartridges increase the height of the clean air chamber in the integrated dust and filtration equipment, further increasing costs. These factors significantly limit the development of integrated dust and filtration equipment.

[0004] Patent document CN205007768U employs a traditional flange connection structure, connected via two flanges, a flange gasket, and multiple bolts. While this structure enables the connection of filter cartridges, it has the following limitations in practical applications: traditional flange connections rely on the sealing of bolts and flange gaskets, potentially leading to leakage risks, especially under high temperature and high pressure conditions. Furthermore, when expanding the capacity of an integrated dust and nitrogen oxide system, the monolithic filter cartridge is difficult to adapt to the new equipment requirements. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a flange-type docking filter cartridge to solve the aforementioned problems.

[0006] This utility model provides the following technical solution:

[0007] A flanged filter cartridge includes an upper flange cylinder, a lower closed cylinder, a docking assembly, and a perforated plate assembly. The upper flange cylinder has open ends, with a non-perforated flange at the upper end and a non-perforated tapered flange at the lower end. The lower closed cylinder has an open end at the upper end and a closed end at the lower end, with the open end being a non-perforated tapered flange of the same size as the lower flange of the upper flange cylinder. The docking assembly is used to connect the upper flange cylinder and the lower closed cylinder. The docking assembly includes a support ring, a lower flange gasket, a lower clamping ring, an upper clamping ring, an upper flange gasket, a first pressure plate, a first pressure plate gasket, a screw, and a first nut. The screw is evenly distributed inside the support ring.

[0008] Furthermore, the tube sheet assembly includes a tube sheet, an arc plate washer, an arc plate, a filter cartridge washer, a shoulder bolt, a second pressure plate, an arc plate fixing bolt, and a second nut.

[0009] Furthermore, the support ring is an L-shaped ring, which is integrally formed or welded.

[0010] Furthermore, the lower flange gasket is placed at the flange inside the support ring, and the lower clamping ring is placed above the lower flange gasket.

[0011] Furthermore, the upper flange plane of the lower clamping ring is provided with a groove, the upper clamping ring is composed of two semi-circular rings, and the lower flange plane is provided with a flange; the upper clamping ring is placed above the lower clamping ring to form a V-shaped clamping space.

[0012] Furthermore, high-temperature ceramic adhesive is applied to the flange plane and middle bevel above the lower clamping ring, and to the flange plane and middle bevel below the upper clamping ring.

[0013] Furthermore, both the upper flange gasket and the first pressure plate are composed of two semi-circular rings, placed above the upper clamping ring.

[0014] Furthermore, the arc plate is semi-circular, and two arc plates form a complete ring. The arc plate is fixed to the pattern plate by arc plate fixing bolts.

[0015] Furthermore, an arc plate washer is provided below the arc plate, and the filter cartridge washer is an open washer.

[0016] This utility model has the following beneficial technical effects:

[0017] This utility model proposes a flange-type filter cartridge and its docking structure. The filter cartridge is split into upper and lower parts, and can be transported in sections, which solves the problem of high transportation difficulty due to excessive length and reduces the damage to the filter cartridge during transportation.

[0018] This invention features a unique docking structure, allowing docking to be completed inside the clean air chamber. The installation method, which connects the lower filter cartridge to the perforated plate, solves the problem of increasing the height of the clean air chamber for long filter cartridges. Simultaneously, the perforated plate structure is adaptively optimized to address the issue of the perforated plate becoming too large for assembly due to the added docking structure.

[0019] The docking assembly of this utility model includes a support ring, a clamping ring, and a flange gasket. Through the use of a raised face design and high-temperature ceramic adhesive, the sealing performance is significantly improved, and the risk of leakage is reduced. The use of a holeless flange avoids the leakage problems that may arise from bolt holes in traditional flange connections, further enhancing the sealing performance. The split-type filter cartridge design allows for flexible adjustment of the length and number of filter cartridges when project expansion or capacity increase is required, without the need to redesign the entire system, greatly improving the system's adaptability and flexibility. Attached Figure Description

[0020] Figure 1 This is a front view of the split-type filter cartridge of this utility model;

[0021] Figure 2 This is a view of the upper flange cylinder of this utility model;

[0022] Figure 3 This is a view of the lower closed cylindrical body of this utility model;

[0023] Figure 4 This is a view of the docking component of this utility model;

[0024] Figure 5 This is a view of the perforated plate assembly of this utility model.

[0025] The attached figures are labeled as follows:

[0026] 1. Upper flange cylinder; 2. Lower enclosed cylinder; 3. Connecting assembly; 31. Support ring; 32. Lower flange gasket; 33. Lower clamping ring; 34. Upper clamping ring; 35. Upper flange gasket; 36. First pressure plate; 37. First pressure plate gasket; 38. Screw; 39. First nut; 4. Perforated plate assembly; 41. Perforated plate; 42. Arc plate gasket; 43. Arc plate; 44. Filter cartridge gasket; 45. Shoulder bolt; 46. Second pressure plate; 47. Arc plate fixing bolt; 48. Second nut. Detailed Implementation

[0027] 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.

[0028] Example

[0029] A flanged filter cartridge includes an upper flanged cylinder 1, a lower closed cylinder 2, a docking assembly 3, and a perforated plate assembly 4.

[0030] The upper flange cylinder 1 has openings at both ends, with the upper end being a non-perforated flange and the lower end being a non-perforated tapered flange.

[0031] The lower closed cylinder 2 has an open end at the top and a closed end at the bottom; the open end is a non-perforated tapered flange, and the flange size is the same as the lower flange of the upper flange cylinder 1.

[0032] The docking assembly 3 is used to connect the upper flange cylinder 1 and the lower closed cylinder 2; the docking assembly 3 consists of a support ring 31, a lower flange gasket 32, a lower clamping ring 33, an upper clamping ring 34, an upper flange gasket 35, a first pressure plate 36, a pressure plate gasket 37, a screw 38, and a first nut 39. The screw 38 is evenly distributed and welded inside the support ring 31.

[0033] The support ring 31 is an L-shaped ring, which can be integrally formed or welded together.

[0034] The lower flange gasket 32 ​​and the upper flange gasket 35 are made of the same material, aluminum silicate ceramic fiber cotton; the lower clamping ring 33 and the upper clamping ring 34 are made of the same material, high-hardness aluminum silicate fiber.

[0035] The lower flange gasket 32 ​​is placed on the flange inside the support ring 31, and the lower clamping ring 33 is placed above the lower flange gasket 32.

[0036] The lower clamping ring 33 has a groove on its upper flange plane, and the upper clamping ring 34 is composed of two semi-circular rings with a flange on its lower flange plane. During installation, the upper clamping ring 34 is placed above the lower clamping ring 33 to form a V-shaped clamping space. At the same time, the design of the groove enhances the sealing performance of the component.

[0037] The upper flange gasket 35 and the first pressure plate 36 are composed of two semi-circular rings and are placed above the upper clamping ring 34.

[0038] The tube sheet assembly 4 consists of a tube sheet 41, an arc plate washer 42, an arc plate 43, a filter cartridge washer 44, a shoulder bolt 45, a second pressure plate 46, an arc plate fixing bolt 47, and a second nut 48. The arc plate 43 is semi-circular, and two arc plates 43 can form a complete ring. The arc plate 43 is fixed to the tube sheet 41 by the arc plate fixing bolt 47. An arc plate washer 42 is provided below the arc plate 43 to prevent flue gas leakage. The filter cartridge washer 44 is an open washer.

[0039] The installation steps of this utility model are as follows: First, place the arc plate washer 42 and the arc plate 43 on the tube sheet 41, then place the support ring 31 on the arc plate 43. Next, insert the lower flange washer 32 and the lower clamping ring 33 through the bolts 39 onto the inner flange of the support ring 31. Apply high-temperature ceramic adhesive to the flange plane and the middle inclined surface above the lower clamping ring 33. Then, pass the lower closed cylinder 2 through the lower clamping ring 33 and place it on top of it. Finally, connect the upper flange cylinder 1 and the lower closed cylinder 2... For the connection, high-temperature ceramic adhesive is applied to the flange plane below the upper clamping ring 34 and the middle bevel. Then, the upper clamping ring 34 and the upper flange gasket 35 are inserted into the upper flange cylinder 1 through the screw 38. The joint of the upper clamping ring 34 and the upper flange gasket 35 is arranged vertically. Finally, the first pressure plate 36 is put into the screw 38, and the first pressure plate gasket 37 is placed at the joint of the first pressure plate 36. The first nut 36 is used to lock it, thus completing the connection of the upper and lower cylinders.

[0040] Remove the arc plate 43, place the assembled filter cartridge and assembly 3 into the hole of the tube sheet, and reinstall the arc plate fixing bolts 47 to fix the arc plate 43. Place the filter cartridge washer 44 on top of the arc plate 43, put down the assembled filter cartridge, and use the second pressure plate 46 and the second nut 48 to fix it, thus completing the installation of the entire filter cartridge.

[0041] The above-described embodiments merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A flange-type filter cartridge, characterized in that, It includes an upper flange cylinder (1), a lower closed cylinder (2), a docking assembly (3), and a perforated plate assembly (4); the upper flange cylinder (1) has open ends, with a non-perforated flange at the upper end and a non-perforated tapered flange at the lower end; the lower closed cylinder (2) has an open end at the upper end and a closed end at the lower end, with the open end being a non-perforated tapered flange, the size of which is consistent with the lower flange of the upper flange cylinder (1); the docking assembly (3) is used to connect the upper flange cylinder (1) and the lower closed cylinder (2); the docking assembly (3) includes a support ring (31), a lower flange gasket (32), a lower clamping ring (33), an upper clamping ring (34), an upper flange gasket (35), a first pressure plate (36), a first pressure plate gasket (37), a screw (38), and a first nut (39); the screw (38) is evenly distributed inside the support ring (31).

2. The flange-type filter cartridge according to claim 1, characterized in that, The tube sheet assembly (4) includes a tube sheet (41), an arc plate washer (42), an arc plate (43), a filter cartridge washer (44), a shoulder bolt (45), a second pressure plate (46), an arc plate fixing bolt (47), and a second nut (48).

3. A flange-type filter cartridge according to claim 1, characterized in that, The support ring (31) is an L-shaped ring, which is integrally formed or welded.

4. A flange-type filter cartridge according to claim 1, characterized in that, The lower flange gasket (32) is placed inside the flange of the support ring (31), and the lower clamping ring (33) is placed above the lower flange gasket (32).

5. A flange-type filter cartridge according to claim 4, characterized in that, The lower clamping ring (33) has a groove on the upper flange plane, and the upper clamping ring (34) is composed of two semi-circular rings with a flange on the lower flange plane; the upper clamping ring (34) is placed above the lower clamping ring (33) to form a V-shaped clamping space.

6. A flange-type filter cartridge according to claim 5, characterized in that, High-temperature ceramic adhesive is applied to the flange plane and middle bevel above the lower clamping ring (33) and the flange plane and middle bevel below the upper clamping ring (34).

7. A flange-type filter cartridge according to claim 5, characterized in that, The upper flange gasket (35) and the first pressure plate (36) are both composed of two semi-circular rings and are placed above the upper clamping ring (34).

8. A flange-type filter cartridge according to claim 2, characterized in that, The arc plate (43) is semi-circular, and two arc plates (43) form a complete ring. The arc plate (43) is fixed to the flower plate (41) by the arc plate fixing bolt (47).

9. A flange-type filter cartridge according to claim 8, characterized in that, An arc plate washer (42) is provided below the arc plate (43), and the filter cartridge washer (44) is an open washer.

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