Center ring and its disc filter element

Abstract

The utility model provides a kind of center ring and its disc filter element.The present center ring includes annular body, the body has through hole that passes through body inside and outside, the number of through hole is several, several through holes are uniformly distributed on body, the body outside has annular recessed avoidance slot, and the outer port of above-mentioned through hole is located at avoidance slot.This disc filter element includes center ring, support net and etching plate, the support net center has matched connection part one with center ring, the etching plate center has matched connection part two with center ring, the number of etching plate is two, connection part one and connection part two are all sleeved at center ring and tightly connected, the support net is tightly pressed between two etching plates, and it further includes filter layer that is sleeved outside two etching plates.Disc filter element with the present center ring has better material flowability during use, and stability is relatively high.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically to a central ring and its disc filter element. Background Technology

[0002] Disc filters are a type of high-efficiency and durable filtration equipment widely used in many industries such as petrochemicals, pharmaceuticals, food and beverage, metallurgy, automobiles, and aerospace, especially for the filtration and separation of corrosive media, high-temperature gases, high-viscosity liquids, and chemicals.

[0003] It uses multiple filter discs with precision grooves stacked together to achieve efficient filtration of impurity particles in materials through physical interception and a three-dimensional labyrinth structure.

[0004] Existing disc filters include a central ring and a multi-layer etched plate and filter media (the filter media being the filter layer in this application) connected to the central ring. The central ring has through-holes penetrating its inner and outer sides, allowing external materials to pass through the filter media and enter the central ring. However, in existing central rings, the outer ends of the through-holes are flush with the outer side of the central ring. After the support mesh is installed with the central ring, it may cause blockage at the outer ends of the through-holes, resulting in poor material flow during use and relatively poor product stability. Utility Model Content

[0005] The first objective of this invention is to address the aforementioned problems in the existing technology by providing a central ring that can effectively prevent blockage.

[0006] The second objective of this invention is to provide a disc filter element employing the aforementioned central ring.

[0007] To achieve the first objective, this utility model can be implemented through the following technical solutions:

[0008] A central ring includes a ring-shaped body with through holes penetrating the inner and outer sides of the body. The number of through holes is several, and the through holes are evenly distributed circumferentially on the body. The characteristic feature is that the outer side of the body has an annular recessed clearance groove, and the outer port of the through hole is located at the clearance groove.

[0009] In the aforementioned central ring, the diameter of the through hole is larger than the width of the clearance groove.

[0010] In the aforementioned central ring, both sides of the through hole extend beyond the inner wall of the clearance groove.

[0011] In the aforementioned central ring, the projection of the clearance groove along the radial direction of the body is arc-shaped.

[0012] In the aforementioned central ring, the projection of the clearance groove along the radial direction of the body is triangular.

[0013] In the aforementioned central ring, the projection of the clearance groove along the radial direction of the body is trapezoidal.

[0014] To achieve the second objective, this utility model can be implemented through the following technical solutions:

[0015] A disc filter element, characterized in that it comprises a central ring, a support mesh, and an etched plate, wherein the support mesh has a connecting part one that matches the central ring at its center, and the etched plate has a connecting part two that matches the central ring at its center, and there are two etched plates, wherein the connecting part one and the connecting part two are both fitted onto the central ring and are tightly connected, the support mesh is tightly pressed between the two etched plates, and the filter element also includes a filter layer fitted onto the outside of the two etched plates.

[0016] In the aforementioned disc filter element, the connecting part of the support mesh abuts against the clearance groove of the central ring.

[0017] In the aforementioned disc filter element, the end of the body of the central ring has an annular recessed connecting seat, and the connecting part of the etched plate is embedded in the connecting seat with the end of the etched plate flush with the end of the body of the central ring.

[0018] In the aforementioned disc filter element, a support member is fixedly connected to the outside of the filter layer. The support member includes an annular support part one and a strip-shaped support part two. The support part one is co-centered with the central ring and is connected to the outside of the filter layer. Several support parts two are evenly distributed circumferentially outside the support part one and are connected to the outside of the filter layer.

[0019] Compared with the prior art, this central ring has an annular recessed clearance groove on its outer side. Therefore, after the support net is connected to the central ring, there is an appropriate gap between the outer side of the central ring and the support net. Through the gap, the material can smoothly enter the through hole. Therefore, the through hole of the central ring is not easy to get blocked during the filtration process, and its stability is relatively high.

[0020] Meanwhile, disc filter elements with the aforementioned central ring have good filtration performance and sufficient strength because the etched plate ensures a stable connection of the filter layer, and the support mesh has high strength. Therefore, disc filter elements have both high stability and filtration performance, making them highly practical. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the central ring.

[0022] Figure 2 yes Figure 1 A schematic diagram of the partial structure at part A in the middle.

[0023] Figure 3This is a three-dimensional structural diagram of another scheme for the central ring.

[0024] Figure 4 yes Figure 3 A schematic diagram of the partial structure at part B in the middle.

[0025] Figure 5 This is a three-dimensional structural diagram of the third scheme of this central ring.

[0026] Figure 6 yes Figure 5 A schematic diagram of the partial structure at part C in the middle.

[0027] Figure 7 This is a cross-sectional structural diagram of a flexible disc filter element.

[0028] Figure 8 This is a top view of the disc filter element.

[0029] Figure 9 yes Figure 7 A schematic diagram of the partial structure at part D in the middle.

[0030] Figure 10 This is a cross-sectional structural diagram of a rigid disc filter element.

[0031] Figure 11 yes Figure 10 A schematic diagram of the partial structure at part E in the middle.

[0032] In the picture:

[0033] 1. Body; 11. Connecting seat; 12. Mounting seat; 2. Through hole; 3. Clearance groove; 4. Support mesh; 41. Connecting part one; 5. Etched plate; 51. Connecting part two; 6. Filter layer; 7. Support component; 71. Support part one; 72. Support part; 8. Edge banding. Detailed Implementation

[0034] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0035] like Figure 1-6 As shown, the central ring includes a ring-shaped body 1. The body 1 has through holes 2 penetrating the inner and outer sides of the body 1. There are several through holes 2, which are evenly distributed around the body. The outer side of the body 1 has an annular recessed relief groove 3, and the outer port of the through holes 2 is located at the relief groove 3.

[0036] The outer side of the main body 1 has a clearance groove 3. When it is installed on a disc filter element, external materials can stably enter the central ring through the through hole 2.

[0037] In other words, the clearance groove of the central ring allows for sufficient clearance at the outer end of the through hole 2 of the central ring, ensuring that the material can pass smoothly through the through hole 2.

[0038] The diameter of the through hole 2 is larger than the width of the clearance groove 3.

[0039] This structure ensures that the size of the through hole 2 is relatively large, thus guaranteeing the flow performance of materials.

[0040] At the same time, the size of the clearance groove 3 is relatively small, which can minimize the impact on the strength of the entire central ring.

[0041] Both sides of the through hole 2 extend beyond the inner wall of the clearance groove 3.

[0042] This can appropriately improve the structure and compactness of the central ring, and ensure that the strength at both ends of the central ring is consistent as much as possible.

[0043] The projection of the aforementioned clearance groove 3 along the radial direction of the body 1 is arc-shaped, see... Figure 1 and Figure 2 As shown. Based on the actual situation, the projection of the aforementioned clearance groove along the radial direction of body 1 forms a 3-triangle shape, see... Figure 5 and Figure 6 As shown; or, the projection of the aforementioned clearance groove 3 along the radial direction of the body 1 is trapezoidal, see Figure 3 and Figure 4 As shown, all of these are feasible technical solutions.

[0044] like Figure 7-9 As shown, this disc filter element includes a central ring, a support mesh 4, and an etched plate 5. The support mesh 4 has a connecting part 41 that matches the central ring at its center, and the etched plate 5 has a connecting part 51 that matches the central ring at its center. There are two etched plates 5. The connecting parts 41 and 51 are both fitted onto the central ring and are tightly connected. The support mesh 4 is pressed tightly between the two etched plates 5.

[0045] It also includes a filter layer 6 that is fitted over the outside of the two etched plates 5.

[0046] In this embodiment, the filter layer 6 is a sintered fiber felt covering the outside of the two etched plates 5.

[0047] The support mesh 4 is a plate-like structure woven from steel wire, which has relatively high strength and relatively large gaps.

[0048] The thickness of the etched plate 5 is smaller than that of the support mesh 4, and the etched plate 5 has a number of micropores with small spaces evenly distributed on it.

[0049] It can be seen that the connecting part 41 of the support mesh 4 is fitted onto the body 1 and the two are tightly connected. The connecting part 51 of the etched plate 5 is fitted onto the body 1 and the two are tightly connected.

[0050] Support mesh 4 provides sufficient strength to the entire disc filter element.

[0051] Although the etched plate 5 has several micropores, its surface is flat. Therefore, after the filter layer is wrapped around the etched plate 5, the connection between the two is stable, preventing the filter layer 6 from being damaged by the uneven support mesh 4. At the same time, it also ensures that the material can pass through the etched plate 5 stably.

[0052] Since the support mesh 4 is positioned between the two etched plates 5, the upper and lower sides of the entire disc filter element are relatively flat, which allows the filter layer 6 covering the upper and lower parts to be stably connected to the corresponding etched plates 5.

[0053] The connecting part 41 of the support net 4 abuts against the clearance groove 3 of the central ring.

[0054] The thickness of the support mesh 4 is greater than the width of the clearance groove 3. This structure allows for a sufficient gap between the support mesh 4 and the central ring, ensuring that materials can smoothly enter the central ring from the outside through the through hole.

[0055] The central ring body 1 has an annular recessed connecting seat 11 at its end. The connecting part 51 of the etched plate 5 is embedded in the connecting seat 11 and the end of the etched plate 5 is flush with the end of the central ring body 1.

[0056] The connecting seat 11 enables the inner end of the etching plate 5 to be stably connected to the central ring body 1, and the structure is relatively compact after connection.

[0057] A support member 7 is fixedly connected to the outside of the filter layer 6. The support member 7 includes an annular support part 71 and a strip-shaped support part 72. The support part 71 is co-centered with the central ring and is connected to the outside of the filter layer 6. Several support parts 72 are evenly distributed around the outside of the support part 71 and are connected to the outside of the filter layer 6.

[0058] Support part 1 71 is stably connected to the inner side of filter layer 6, and support part 2 72 is stably connected to the outer side of filter layer 6, thus ensuring the connection stability of filter layer 6 and the entire disc filter element has appropriate strength.

[0059] The main purpose of the support component 7 is to support the two adjacent disc filter elements, so as to maintain an appropriate gap between the two adjacent disc filter elements and facilitate the flow of materials.

[0060] In this embodiment, the support member in the flexible disc filter element is not fixed, and the inner diameter of the support part 71 of the flexible disc filter element matches the inner diameter of the central ring.

[0061] In the rigid disc filter element, the support member 7 is welded onto the disc, and the inner diameter of the central ring of the rigid disc filter element is smaller than the inner diameter of the support member 71.

[0062] Because the central ring has an annular recessed clearance groove 3 on its outer side, after the support net 4 is connected to the central ring, there is an appropriate gap between the outer side of the central ring and the support net 4. Through the gap, the material can smoothly enter the central ring through the through hole 2. Therefore, the through hole 2 of the central ring is not easy to become blocked during the filtration process, and its stability is relatively high.

[0063] Meanwhile, the etched plate 5 can improve the connection stability between it and the filter layer 6, while the support mesh 4 has relatively high strength. Therefore, the entire disc filter element has good filtration performance and sufficient strength. Its stability and filtration performance are both relatively high, and it has high practical value.

[0064] During the filtration process, the material enters the filter layer 6 from the outside. After being filtered by the filter layer 6, the material passes through the etched plate 5, the support mesh 4 and the through hole 2 in sequence, and finally enters the central ring.

[0065] This disc filter element has two structures: a flexible structure and a rigid structure.

[0066] like Figure 9 As shown, the soft structure consists of a sealing ring 8 covering the inner edge of the filter layer 6, and the sealing ring 8 abutting against the end of the body 1 of the central ring.

[0067] like Figure 10 and Figure 11 As shown, in the rigid structure, the inner edge of the filter layer 6 is directly fixed to the central ring. That is, the central ring body 1 has an annular recessed mounting seat 12 on its side, and the inner edge of the filter layer 6 is embedded in the mounting seat 12 and the two are fixedly connected. The connection can be achieved by argon arc welding.

[0068] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0069] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A central ring, comprising a ring-shaped body having through holes penetrating the inner and outer sides of the body, wherein the number of through holes is plurality of holes evenly distributed circumferentially on the body, characterized in that, The outer side of the body has an annular recessed clearance groove, and the outer port of the aforementioned through hole is located at the clearance groove.

2. The central ring according to claim 1, characterized in that, The diameter of the through hole is larger than the width of the clearance groove.

3. The central ring according to claim 1, characterized in that, Both sides of the through hole extend beyond the inner wall of the clearance groove.

4. The central ring according to claim 1, characterized in that, The projection of the aforementioned clearance groove along the radial direction of the body is arc-shaped.

5. The central ring according to claim 1, characterized in that, The projection of the aforementioned clearance groove along the radial direction of the body is triangular.

6. The central ring according to claim 1, characterized in that, The projection of the aforementioned clearance groove along the radial direction of the body is trapezoidal.

7. A disc filter element, characterized in that, The device includes a central ring, a support mesh, and an etched plate as claimed in any one of claims 1-6. The support mesh has a connecting part 1 that matches the central ring at its center, and the etched plate has a connecting part 2 that matches the central ring at its center. There are two etched plates. The connecting part 1 and the connecting part 2 are both fitted onto the central ring and are tightly connected. The support mesh is pressed tightly between the two etched plates. The device also includes a filter layer fitted onto the outside of the two etched plates.

8. The disc filter element according to claim 7, characterized in that, The connecting part of the support net abuts against the clearance groove of the central ring.

9. The disc filter element according to claim 7, characterized in that, The central ring has an annular recessed connecting seat at the end of its body. The connecting part of the etched plate is embedded in the connecting seat and the end of the etched plate is flush with the end of the central ring's body.

10. The disc filter element according to claim 7, characterized in that, A support member is fixed to the outside of the filter layer. The support member includes an annular support part one and a strip-shaped support part two. The support part one is co-centered with the central ring and is connected to the outside of the filter layer. Several support parts two are evenly distributed around the outside of the support part one and are connected to the outside of the filter layer.

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