A wrap-around filter element

Abstract

The utility model provides a kind of winding filter element, belong to filter equipment technical field, comprising: positioning distribution plate, flower board and at least one filter core unit.Filter core unit includes filter tube and filter medium group, and filter medium group includes the first filter medium and second filter medium wound on the outside of filter tube.The bottom end of filter tube is additionally equipped with sealing joint, and the bottom surface of sealing joint is equipped with sealing boss, and the bottom surface of sealing boss is equipped with liquid guide connection pipe, and liquid guide connection pipe is inserted into the inside of filter core hole on flower board.Sealing flange is equipped at the top of filter core hole, and sealing groove is equipped on the top surface of sealing flange.The utility model described a kind of winding filter element, can be according to actual demand flexible adjustment filter medium group's material quality, and filter medium group is replaced after use, to reduce the use cost of filter, simultaneously still can make filter core unit and flower board between obtain good sealing effect, avoid material leakage.

Description

Technical Field

[0001] This utility model belongs to the field of filtration equipment technology, and in particular relates to a wound-wound filter element. Background Technology

[0002] Filters are a common process device in the chemical industry, used to separate and remove insoluble solid particles, impurities, or other suspended matter from materials to protect downstream equipment, ensure product quality, meet process requirements, or comply with environmental emission standards. A typical filter generally consists of four parts: a housing, filter element, support structure, and seals. The filter element is the core component that enables the separation and filtration function, and its composition, structure, and material selection have a decisive impact on the filter's performance.

[0003] When separating and filtering materials containing toluene or acetone with high filtration accuracy requirements, common PP or PE filter elements may dissolve or soften if the material temperature is high, thus affecting the actual treatment effect. While existing PTFE, metal, or ceramic filter elements offer better chemical compatibility, they are prone to clogging during application and are difficult to clean. Therefore, in practical applications, they can only be used as single-use filter elements, significantly increasing the cost of filter operation. Utility Model Content

[0004] In view of this, the present invention aims to provide a wound-type filter element to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A wound-type filter element includes: a positioning distribution plate, a perforated plate, and at least one filter element unit. The positioning distribution plate and the perforated plate are connected by a tie rod. The filter element unit is disposed between the positioning distribution plate and the perforated plate. The positioning distribution plate has a fixing hole for accommodating the top end of the filter element unit, and the perforated plate has a filter element hole for accommodating the bottom end of the filter element unit.

[0007] The filter element unit includes a filter tube and a filter media assembly. The filter media assembly includes a first filter media and a second filter media, which are alternately wound around the outside of the filter tube along its radial direction. The bottom end of the filter tube is also provided with a sealing joint. The bottom surface of the sealing joint is provided with a sealing boss. The bottom surface of the sealing boss is provided with a liquid guiding pipe that communicates with the filter tube, and the liquid guiding pipe is detachably inserted into the filter element hole. The top end of the filter element hole is provided with a sealing flange, and the top surface of the sealing flange is provided with a sealing groove for accommodating the sealing boss.

[0008] Furthermore, the sealing boss includes a first sealing section and a second sealing section, the outer diameter of the second sealing section is smaller than the outer diameter of the first sealing section, and the second sealing section is located at the end of the first sealing section away from the sealing joint; a sealing ring is also provided inside the sealing groove, the second sealing section is inserted into the sealing ring, and the inner diameter of the sealing ring is equal to the outer diameter of the second sealing section, and the outer diameter of the sealing ring is equal to the inner diameter of the sealing groove.

[0009] Furthermore, the outer wall of the liquid guiding pipe is provided with external threads, and a locking nut and an elastic washer are also provided on the liquid guiding pipe. The locking nut is located below the tube sheet, and the elastic washer is located between the locking nut and the tube sheet.

[0010] Furthermore, the filter tube is a wedge-shaped wire filter tube.

[0011] Furthermore, the first filter medium is a double-layer pure cotton gauze, and the second filter medium is a qualitative filter paper.

[0012] Furthermore, the first filter medium is present on both the side of the filter medium assembly closest to the filter tube and the side furthest from the filter tube.

[0013] Furthermore, the filter media assembly is provided with multiple binding ropes on the side away from the filter tube for constraining the filter media assembly, and the multiple binding ropes are arranged along the axial direction of the filter tube.

[0014] Furthermore, the top of the filter tube is provided with a cap, and a positioning tube is provided on the top surface of the cap, and the positioning tube is inserted into the fixing hole.

[0015] Furthermore, the sidewall of the positioning distribution plate is provided with multiple flow guiding surfaces, and the multiple flow guiding surfaces are evenly arranged on the periphery of the positioning distribution plate.

[0016] Furthermore, a drain groove is provided on the top surface of the tube sheet, and a lifting handle is provided on the side wall of the tube sheet.

[0017] Compared with the prior art, the wound filter element of this utility model has the following advantages:

[0018] This utility model discloses a wound-wound filter element, in which a first filter medium and a second filter medium are alternately wound along the radial direction on the filter tube. During material processing, operators can select the materials of the first and second filter media according to process parameters and the actual conditions of the material to achieve good processing results. Furthermore, after material processing, operators can disassemble the filter element unit and replace the filter media assembly, thereby reducing the filter's operating costs. In addition, a sealing boss is provided on the bottom surface of the sealing joint, and a sealing groove is provided on the sealing flange at the top of the filter hole. Therefore, after the filter element unit is assembled with the tube sheet, a good splicing and sealing effect is achieved between the filter element unit and the tube sheet, preventing material leakage along the splicing gaps. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the wound-wound filter element according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the filter element unit described in an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the filter element unit described in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the area where the sealing joint is located, as described in an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the positioning distribution plate described in an embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the flower plate described in an embodiment of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Positioning distribution plate; 11-Fixing hole; 12-Guide section; 2-Flow plate; 21-Filter element hole; 22-Sealing flange; 221-Sealing ring; 23-Draining tank; 24-Lifting handle; 3-Filter element unit; 31-Filter tube; 311-Cap; 312-Positioning tube; 32-Filter media group; 321-First filter media; 322-Second filter media; 33-Sealing joint; 341-First sealing section; 342-Second sealing section; 35-Liquid guide pipe; 351-Locking nut; 352-Elastic washer; 4-Pull rod. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] A wound-wound filter element is used to be installed inside a filter to facilitate the separation and filtration of materials entering the filter. Figures 1-6This is a schematic diagram of the wound-wound filter element in this embodiment. As shown in the figure, similar to common filter elements, this wound-wound filter element includes: a positioning distribution plate 1, a perforated plate 2, and at least one filter element unit 3. The positioning distribution plate 1 and the perforated plate 2 are connected by a tie rod 4. The filter element unit 3 is disposed between the positioning distribution plate 1 and the perforated plate 2. The positioning distribution plate 1 has a fixing hole 11 for accommodating the top end of the filter element unit 3, and the perforated plate 2 has a filter element hole 21 for accommodating the bottom end of the filter element unit 3. In use, the cooperation of the positioning distribution plate 1 and the perforated plate 2 fixes the position of the filter element unit 3, while the tie rod 4 improves the bonding effect of the positioning distribution plate 1, the perforated plate 2, and the filter element unit 3, and reduces the shaking of the entire filter element when impacted by materials.

[0033] Since the composition and material selection of the filter element unit 3 directly affect the material handling effect of the filter, the filter element unit 3 in this embodiment includes a filter tube 31 and a filter media group 32. Figure 2 and Figure 3 As shown, the filter media assembly 32 includes a first filter media 321 and a second filter media 322, which are alternately wound around the outside of the filter tube 31 along its radial direction. Before use, operators can select the materials of the first filter media 321 and the second filter media 322 according to process parameters and the actual condition of the material to be treated. They can also adjust the number of turns of the first filter media 321 and the second filter media 322 on the filter tube 31 according to the required filtration accuracy, ensuring smooth and effective subsequent filtration. During use, the material to be treated passes through the filter media assembly 32 and enters the filter tube 31, thereby intercepting insoluble solid particles, impurities, or other suspended matter inside the material outside the filter element unit 3, achieving the purpose of filtering the material. After use, operators can disassemble and replace the filter media assembly 32, and clean and reuse the filter tube 31 to reduce the operating cost of the filter.

[0034] For example, in this embodiment, the filter tube 31 can be a wedge-shaped wire filter tube, the first filter medium 321 can be double-layered pure cotton gauze, and the second filter medium 322 can be qualitative filter paper. Accordingly, to protect the second filter medium 322, both the side of the filter medium assembly 32 closest to the filter tube 31 and the side furthest from the filter tube 31 should be set as the first filter medium 321, so that the filter medium assembly 32 can obtain good operational weather resistance.

[0035] As an optional implementation of this embodiment, in order to facilitate the restraint of the first filter medium 321 and the second filter medium 322 wrapped around the outside of the filter tube 31, multiple binding ropes (not shown in the figure) may be provided on the side of the filter medium group 32 away from the filter tube 31, and the multiple binding ropes should be arranged along the axial direction of the filter tube 31 to avoid the filter medium group 32 from separating from the filter tube 31.

[0036] To prevent leakage of the material to be processed along the joint between the filter element unit 3 and the tube sheet 2, this embodiment also provides a sealing joint 33 at the bottom end of the filter tube 31, and a sealing flange 22 that mates with the sealing joint 33 is provided at the top end of the filter element hole 21 of the tube sheet 2. Figure 4 As shown, a sealing boss is provided on the bottom surface of the sealing joint 33, and a liquid guiding pipe 35 communicating with the filter pipe 31 is provided on the bottom surface of the sealing boss. A sealing groove is provided on the top surface of the sealing flange 22. When assembling the filter element unit 3 and the tube sheet 2, the operator can detachably insert the liquid guiding pipe 35 into the filter element hole 21 and allow the sealing boss to enter the sealing groove. At this time, the cooperation between the sealing boss and the sealing groove can increase the contact area between the filter element unit 3 and the tube sheet 2, thereby improving the sealing effect between the filter element unit 3 and the tube sheet 2.

[0037] Optionally, the sealing boss may include a first sealing section 341 and a second sealing section 342, wherein the outer diameter of the second sealing section 342 is smaller than the outer diameter of the first sealing section 341, and the second sealing section 342 is located at the end of the first sealing section 341 away from the sealing joint 33. Correspondingly, a sealing ring 221 may also be provided inside the sealing groove, and the inner diameter of the sealing ring 221 should be equal to the outer diameter of the second sealing section 342, and the outer diameter of the sealing ring 221 should be equal to the inner diameter of the sealing groove. After the assembly between the filter element unit 3 and the tube sheet 2 is completed, the second sealing section 342 will be inserted into the sealing ring 221, and the end face of the first sealing section 341 will contact the end face of the sealing ring 221. At this time, the cooperation between the outer wall of the second sealing section 342 and the inner wall of the sealing ring 221 can provide radial sealing at the joint, and the cooperation between the end face of the first sealing section 341 and the end face of the sealing ring 221 can provide axial sealing at the joint, so as to achieve a better sealing effect between the filter element unit 3 and the tube sheet 2.

[0038] To enhance the connection between the filter element unit 3 and the tube sheet 2, this embodiment may have external threads on the outer wall of the liquid guiding pipe 35, and a locking nut 351 and an elastic washer 352 are also provided on the liquid guiding pipe 35. During assembly, the locking nut 351 should be located below the tube sheet 2, and the elastic washer 352 should be located between the locking nut 351 and the tube sheet 2. When the locking nut 351 is tightened, a reliable fixing effect will be achieved between the filter element unit 3 and the tube sheet 2, and the end face of the first sealing section 341 will also fit tightly against the end face of the sealing ring 221, further improving the sealing performance between the filter element unit 3 and the tube sheet 2.

[0039] In addition, to achieve the connection between the top of the filter element unit 3 and the positioning distribution plate 1, a cap 311 can be provided at the top of the filter tube 31, and a positioning tube 312 is provided on the top surface of the cap 311. During assembly, the operator can insert the positioning tube 312 into the fixing hole 11 to fix the position of the filter element unit 3 between the positioning distribution plate 1 and the tube sheet 2.

[0040] Figure 5 The diagram shows the structure of the positioning distribution plate 1 in this embodiment. As shown, to reduce the impact of material on the filter element unit 3, multiple flow guiding surfaces 12 can be provided on the side wall of the positioning distribution plate 1, and these multiple flow guiding surfaces 12 should be evenly arranged around the periphery of the positioning distribution plate 1. When the material comes into contact with the positioning distribution plate 1, the presence of the flow guiding surfaces 12 allows the material to flow downwards along the periphery of the positioning distribution plate 1 and eventually come into contact with the filter element unit 3. This not only prevents the filter element unit 3 from being subjected to excessive impact force, but also improves the uniformity of material distribution, thereby improving the filtration quality of the material.

[0041] Figure 6 The diagram shows the structure of the perforated plate 2 in this embodiment. To improve the ease of use of this filter element, a drain trough 23 can be provided on the top surface of the perforated plate 2, so that the remaining material above the perforated plate 2 can be drained through the drain trough 23 after the filtration work is completed. At the same time, a lifting handle 24 can also be provided on the side wall of the perforated plate 2, so that the operator can move the filter element to the outside of the filter by lifting the handle 24, thereby disassembling and cleaning the filter tube 31 and disassembling and replacing the filter media assembly 32.

[0042] The effects of the above solution are explained below:

[0043] This embodiment provides a wound-wound filter element with a first and second filter medium wound on the filter tube. Therefore, the materials of the first and second filter media can be selected according to process parameters and the actual conditions of the material. Furthermore, the first and second filter media can be replaced after material processing, thereby improving the filtration effect and reducing the filter's operating cost. In addition, this filter element can improve the sealing effect between the filter element unit and the perforated plate through the cooperation of sealing bosses and sealing grooves, preventing material leakage along the joint gaps.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wrap-around filter element comprising: The filter element unit (3) comprises a positioning distribution plate (1), a perforated plate (2), and at least one filter element unit (3), wherein the positioning distribution plate (1) and the perforated plate (2) are connected by a tie rod (4), and the filter element unit (3) is disposed between the positioning distribution plate (1) and the perforated plate (2). The positioning distribution plate (1) has a fixing hole (11) for accommodating the top end of the filter element unit (3), and the perforated plate (2) has a filter element hole (21) for accommodating the bottom end of the filter element unit (3). The filter element unit (3) is characterized by the following features: The filter element unit (3) includes a filter tube (31) and a filter medium group (32). The filter medium group (32) includes a first filter medium (321) and a second filter medium (322). The first filter medium (321) and the second filter medium (322) are alternately wound around the outside of the filter tube (31) along the radial direction of the filter tube (31). The bottom end of the filter tube (31) is also provided with a sealing joint (33). The bottom surface of the sealing joint (33) is provided with a sealing boss. The bottom surface of the sealing boss is provided with a liquid guiding pipe (35) that communicates with the filter tube (31). The liquid guiding pipe (35) can be detachably inserted into the filter element hole (21). The top end of the filter element hole (21) is provided with a sealing flange (22). The top surface of the sealing flange (22) is provided with a sealing groove for accommodating the sealing boss.

2. The wound-wound filter element according to claim 1, characterized in that: The sealing boss includes a first sealing section (341) and a second sealing section (342). The outer diameter of the second sealing section (342) is smaller than the outer diameter of the first sealing section (341), and the second sealing section (342) is located at the end of the first sealing section (341) away from the sealing joint (33). A sealing ring (221) is also provided inside the sealing groove. The second sealing section (342) is inserted into the sealing ring (221), and the inner diameter of the sealing ring (221) is equal to the outer diameter of the second sealing section (342). The outer diameter of the sealing ring (221) is equal to the inner diameter of the sealing groove.

3. The wound-wound filter element according to claim 1, characterized in that: The outer wall of the liquid guide pipe (35) is provided with external threads. A locking nut (351) and an elastic washer (352) are also provided on the liquid guide pipe (35). The locking nut (351) is located below the tube sheet (2), and the elastic washer (352) is located between the locking nut (351) and the tube sheet (2).

4. A wound-type filter element according to claim 1, characterized in that: The filter tube (31) is a wedge wire filter tube (31).

5. A wound-type filter element according to claim 1, characterized in that: The first filter medium (321) is a double-layer pure cotton gauze, and the second filter medium (322) is a qualitative filter paper.

6. A wound-type filter element according to claim 1, characterized in that: The filter media group (32) has a first filter media (321) on both the side closest to the filter tube (31) and the side furthest from the filter tube (31).

7. A wound-type filter element according to claim 1, characterized in that: The filter media group (32) is provided with multiple binding ropes on the side away from the filter tube (31) for constraining the filter media group (32), and the multiple binding ropes are arranged along the axial direction of the filter tube (31).

8. A wound-type filter element according to claim 1, characterized in that: The filter tube (31) has a cap (311) at the top and a positioning tube (312) on the top surface of the cap (311), and the positioning tube (312) is inserted into the fixing hole (11).

9. A wound-type filter element according to claim 1, characterized in that: The positioning distribution plate (1) has multiple flow guiding surfaces (12) on its side wall, and the multiple flow guiding surfaces (12) are evenly arranged on the periphery of the positioning distribution plate (1).

10. A wound-type filter element according to claim 1, characterized in that: The top surface of the flower plate (2) is provided with a drain groove (23), and a lifting handle (24) is provided on the side wall of the flower plate (2).

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