Filter center rod reinforcement structure, filter center rod, and filter

Abstract

The utility model discloses a filter center pole reinforcing structure, filter center pole and filter relate to filter technical field, and filter center pole reinforcing structure includes fixed ring, and the through hole is set up on fixed ring, and fixed ring is used for installing in the inside of filter center pole, and the inside of filter center pole is provided with one or more fixed rings along the equidistance of the axial direction of center pole body, before filter core welding assembly, this fixed ring is inserted into filter center pole, finally welds and assembles filter core again, and the strength under high temperature can be greatly improved after containing fixed ring in center pole, improves the reliability of filter core in high temperature filtering application.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a filter center rod reinforcement structure, a filter center rod, and a filter. Background Technology

[0002] A filter element is generally assembled and welded together from an outer filter element cover, a filter membrane, a central filter rod, closed end caps, and open end caps. The liquid typically flows from the outside of the filter element to the inside of the central filter rod, and then flows out through the open end.

[0003] During the flow of liquid through the filter element, a pressure difference is generated between the upstream and downstream sides, and this pressure difference is borne by the central rod. The greater the liquid flow rate and viscosity, the greater the pressure difference. If the pressure difference exceeds the central rod's withstand range, the central rod will deform, causing damage to the filter element and reducing filtration efficiency. The strength of the filter's central rod decreases with increasing temperature. In some semiconductor applications, such as sulfuric acid and phosphoric acid filtration, temperatures often reach around 150–160 degrees Celsius. At this temperature, the strength of the central rod decreases significantly. Therefore, in these applications, filter element damage and filtration failure often occur, causing significant losses to the customer's products. Utility Model Content

[0004] The purpose of this invention is to provide a reinforced structure for the filter center rod, a filter center rod, and a filter, in order to solve the problems existing in the prior art and improve the reliability of the filter element in high-temperature filtration applications.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a filter center rod reinforcement structure, including a fixing ring, wherein the fixing ring has a through hole and is used to be installed inside the filter center rod.

[0006] In one embodiment, the through hole is provided at the center of the fixing ring.

[0007] In one embodiment, the fixing ring is further provided with a plurality of arc-shaped through holes spaced at equal intervals around the through hole.

[0008] In one embodiment, the bottom of the fixing ring is provided with a circumferentially inclined chamfer.

[0009] In one embodiment, the bottom outer diameter of the fixing ring is smaller than the top outer diameter of the fixing ring.

[0010] In one embodiment, the retaining ring is manufactured using an injection molding process.

[0011] In one embodiment, the retaining ring is made of PFA material, and the retaining ring is made of the same material as the filter center rod.

[0012] This utility model also provides a filter center rod, including the above-mentioned filter center rod reinforcing structure, and a center rod body, wherein one or more fixing rings are equally spaced along the axial direction of the center rod body inside the center rod body.

[0013] In one embodiment, the bottom of the retaining ring is inserted downward into the central rod, with the bottom of the retaining ring facing the bottom opening end cap of the filter.

[0014] This utility model also provides a filter, including the above-mentioned filter center rod reinforcing structure, and further including a filter element cover, a filter element, a filter center rod, a closed end cap, and an open end cap. The filter element and the filter center rod are coaxially assembled inside the filter element cover. The filter element is located between the filter center rod and the filter element cover. One or more fixing rings are equally spaced along the axial direction of the filter center rod inside the filter center rod. The closed end cap and the open end cap are respectively installed on the top and bottom of the filter element cover.

[0015] The present invention achieves the following beneficial technical effects compared to the prior art:

[0016] This utility model discloses a filter center rod reinforcement structure, a filter center rod, and a filter. The filter center rod reinforcement structure includes a fixing ring with a through hole for installation inside the filter center rod. One or more fixing rings are evenly spaced along the axial direction of the filter center rod inside. Before welding and assembling the filter element, this fixing ring is inserted into the filter center rod, and then the filter element is welded and assembled. The presence of fixing rings inside the center rod greatly improves its strength at high temperatures, enhancing the reliability of the filter element in high-temperature filtration applications. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the filter center rod reinforcement structure;

[0019] Figure 2 Top view of the filter center rod reinforcement structure;

[0020] Figure 3 for Figure 2 Sectional view along direction A in the middle;

[0021] Figure 4 A schematic diagram of the structure of the central rod of a filter with a built-in retaining ring;

[0022] Figure 5 for Figure 4 Sectional view along direction B;

[0023] Figure 6 This is a schematic diagram of the appearance of the filter's center rod;

[0024] Figure 7 This is a structural diagram of the filter;

[0025] The components are: 1. Fixing ring; 2. Filter center rod; 3. Closed end cap; 4. Filter element cover; 5. Open end cap. Detailed Implementation

[0026] 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.

[0027] The purpose of this invention is to provide a reinforced structure for the filter center rod, a filter center rod, and a filter, in order to solve the problems existing in the prior art and improve the reliability of the filter element in high-temperature filtration applications.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] like Figures 1-3 As shown, this embodiment provides a filter center rod reinforcement structure, including a fixing ring 1 with a through hole, and the fixing ring 1 is used to install inside the filter center rod 2.

[0031] In one embodiment, such as Figure 1 As shown, a through hole is provided at the center of the fixing ring 1, and multiple arc-shaped through holes are also provided at equal intervals around the through hole on the fixing ring 1. This will not increase the weight of the filter center rod 2 too much, but will also provide axial and radial support for the filter center rod 2, thereby improving the strength of the center rod.

[0032] In one embodiment, in order to facilitate inserting the retaining ring 1 into the filter center rod 2, the bottom of the retaining ring 1 is provided with a circumferential inclined chamfer, and the bottom outer diameter of the retaining ring 1 is smaller than the top outer diameter of the retaining ring 1.

[0033] In one embodiment, the retaining ring 1 is manufactured using an injection molding process.

[0034] In one embodiment, the retaining ring 1 is made of PFA material, and the retaining ring 1 is made of the same material as the filter center rod 2. The consistency of the material means that the retaining ring 1 can not only provide axial and radial support for the filter center rod 2 under normal conditions, but also, under high temperature, the retaining ring 1, which is made of the same material as the filter center rod 2, can effectively prevent the filter center rod 2 from deforming and provide strong support at the required support points, thereby improving the load-bearing capacity of the filter center rod 2.

[0035] In addition, depending on the location and area of ​​the internal support of the filter center rod 2, 1-5 fixing rings 1 can be set at equal intervals in the inner cavity of the filter center rod 2. In actual use, the specific number can also be adjusted and changed accordingly.

[0036] It is important to note that the retaining ring 1 can be inserted into and fixed in place by the filter center rod 2, preventing it from shifting; the design of the retaining ring 1 gives the filter center rod 2 high compressive strength. The use of rings 1 through 5 is based on the location and area of ​​the rings supporting the center rod.

[0037] Example 2

[0038] This embodiment provides a filter center rod 2, including a filter center rod reinforcement structure and a center rod body. One or more fixing rings 1 are arranged at equal intervals along the axial direction of the center rod body inside the center rod body.

[0039] A through hole is provided at the center of the fixing ring 1. Multiple arc-shaped through holes are also provided at equal intervals around the through hole on the fixing ring 1. This will not increase the weight of the filter center rod 2 too much, but will also provide axial and radial support for the filter center rod 2, thereby improving the strength of the center rod.

[0040] To facilitate the insertion of the retaining ring 1 into the filter center rod 2, the bottom of the retaining ring 1 is provided with a circumferential inclined chamfer, and the bottom outer diameter of the retaining ring 1 is smaller than the top outer diameter of the retaining ring 1.

[0041] The retaining ring 1 is manufactured using injection molding. Specifically, the retaining ring 1 is made of PFA material, and the retaining ring 1 is made of the same material as the filter center rod 2. This material consistency allows the retaining ring 1 to provide axial and radial support for the filter center rod 2 under normal conditions. At high temperatures, the retaining ring 1, being made of the same material as the filter center rod 2, can effectively prevent the filter center rod 2 from deforming and provide strong support at the required support points, thereby improving the load-bearing capacity of the filter center rod 2.

[0042] In one embodiment, the bottom of the retaining ring 1 is inserted downward into the central rod, with the bottom of the retaining ring 1 facing the bottom opening end cap 5 of the filter.

[0043] Based on the location and area of ​​the internal support of the filter center rod 2, 1-5 fixing rings 1 can be set at equal intervals in the inner cavity of the filter center rod 2. In actual use, the specific number can also be adjusted and changed accordingly.

[0044] The filter center rod 2, which has a built-in retaining ring 1, has high compressive strength. The presence of the retaining ring 1 in the filter center rod 2 can greatly improve its strength at high temperatures and enhance the reliability of the filter element in high-temperature filtration applications.

[0045] Example 3

[0046] This embodiment provides a filter, including a filter center rod reinforcement structure, a filter element cover 4, a filter element, a filter center rod 2, a closed end cap 3, and an open end cap 5. The filter element and the filter center rod 2 are coaxially assembled inside the filter element cover 4. The filter element is located between the filter center rod 2 and the filter element cover 4. One or more fixing rings 1 are evenly spaced along the axial direction of the filter center rod 2 inside the filter center rod 2. The closed end cap 3 and the open end cap 5 are respectively installed on the top and bottom of the filter element cover 4.

[0047] A through hole is provided at the center of the fixing ring 1. Multiple arc-shaped through holes are also provided at equal intervals around the through hole on the fixing ring 1. This will not increase the weight of the filter center rod 2 too much, but will also provide axial and radial support for the filter center rod 2, thereby improving the strength of the center rod.

[0048] To facilitate the insertion of the retaining ring 1 into the filter center rod 2, the bottom of the retaining ring 1 is provided with a circumferential inclined chamfer, and the bottom outer diameter of the retaining ring 1 is smaller than the top outer diameter of the retaining ring 1.

[0049] The retaining ring 1 is manufactured using injection molding. Specifically, the retaining ring 1 is made of PFA material, and the retaining ring 1 is made of the same material as the filter center rod 2. This material consistency allows the retaining ring 1 to provide axial and radial support for the filter center rod 2 under normal conditions. At high temperatures, the retaining ring 1, being made of the same material as the filter center rod 2, can effectively prevent the filter center rod 2 from deforming and provide strong support at the required support points, thereby improving the load-bearing capacity of the filter center rod 2.

[0050] In one embodiment, the bottom of the retaining ring 1 is inserted downward into the central rod, with the bottom of the retaining ring 1 facing the bottom opening end cap 5 of the filter.

[0051] Before welding and assembling the filter element, insert the retaining ring 1 into the filter center rod 2, and then weld and assemble the filter element. The presence of the retaining ring 1 inside the filter center rod 2 greatly improves its strength at high temperatures, enhancing the reliability of the filter element in high-temperature filtration applications. The liquid flows from the outside of the filter element cover 4 through the filter membrane to the inside of the filter center rod 2, and then flows out through the open end cap 5. The closed end cap 3 is in a sealed state.

[0052] During the process of liquid passing through the filter element, a pressure difference is generated between the upstream and downstream sides of the filter element, and this pressure difference is borne by the filter center rod 2. The greater the liquid flow rate and viscosity, the greater the pressure difference will be. If the pressure difference exceeds the bearing capacity of the center rod, the center rod will deform, thereby damaging the filter element and reducing the filtration efficiency. In order to improve the strength of the filter center rod 2, the filter in this embodiment has one or more fixing rings 1 built into the filter center rod 2. The filter center rod 2 with the built-in fixing rings 1 has the characteristic of high pressure resistance. The inclusion of fixing rings 1 in the filter center rod 2 can greatly improve the strength at high temperatures, thereby improving the reliability of the filter element in high-temperature filtration applications.

[0053] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A filter center rod reinforcement structure, characterized in that: Includes a retaining ring, which has a through hole, and is used to be installed inside the filter center rod; The fixing ring has a through hole at its center, and multiple arc-shaped through holes are also evenly spaced around the through hole on the fixing ring. The bottom of the fixing ring has a circumferential inclined chamfer, and the outer diameter of the bottom of the fixing ring is smaller than the outer diameter of the top of the fixing ring.

2. The filter center rod reinforcement structure according to claim 1, characterized in that: The retaining ring is manufactured using an injection molding process.

3. The filter center rod reinforcement structure according to claim 1, characterized in that: The retaining ring is made of PFA material, and the retaining ring is made of the same material as the filter center rod.

4. A filter center rod, characterized in that: The filter center rod reinforcement structure according to any one of claims 1-3 further includes a center rod body, wherein one or more of the fixing rings are provided at equal intervals along the axial direction of the center rod body inside the center rod body.

5. The filter center rod according to claim 4, characterized in that: The bottom of the retaining ring is inserted downward into the central rod, with the bottom of the retaining ring facing the bottom opening end cap of the filter.

6. A filter, characterized in that, The filter center rod reinforcing structure, including any one of claims 1-3, further includes a filter element cover, a filter element, a filter center rod, a closed end cap, and an open end cap. The filter element and the filter center rod are coaxially assembled inside the filter element cover. The filter element is located between the filter center rod and the filter element cover. One or more fixing rings are evenly spaced along the axial direction of the filter center rod inside the filter center rod. The closed end cap and the open end cap are respectively installed on the top and bottom of the filter element cover.

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