Filter assembly and candle filter

Abstract

The filter assembly comprises a terminal, an end cover and a plurality of filter elements, the terminal is provided with a first surface and a second surface which are opposite to each other, and a plurality of connecting holes penetrating from the first surface to the second surface are formed in the terminal; the end cover is arranged on the first surface, an arc-shaped groove is formed in the side, facing the first surface, of the end cover, a liquid outlet communicated with the arc-shaped groove is formed in the end cover, and when the end cover covers the first surface, a closed space can be formed between the arc-shaped groove and the first surface; the multiple filter elements are arranged opposite to the second surface, and the liquid discharging ends of the multiple filter elements are inserted into the multiple connecting holes in a one-to-one correspondence mode. The closed space formed by the arc-shaped groove and the first surface can collect all liquid filtered by the filter element in a centralized manner, and liquid retention or secondary pollution is avoided.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, specifically to a filtration component and a candle filter. Background Technology

[0002] Candle filters are a type of melt filter widely used in industries such as petroleum, plastics, electroplating, chemicals, ceramics, pharmaceuticals, and sugar refining. The main purpose of candle filters is to remove solid impurities such as organic melts, carbonized particles, and metal oxides from the melt. Candle filtration has gradually replaced pressure filtration and bag filtration, becoming the mainstream filtration method. The repeated use of the filter media saves a lot of filter consumables.

[0003] Currently, candle filters typically use a filter assembly as the core unit, which mainly consists of terminals and multiple filter cartridges. The drain ends of all filter cartridges are directly connected to the connection holes of the terminals, allowing for centralized liquid discharge. However, during the draining process, the filtered liquid flows directly from the connection holes and the candle filter's drain pipe. The lack of guidance in the liquid flow path from the connection holes to the drain pipe can easily lead to localized stagnation, affecting discharge efficiency. Utility Model Content

[0004] Based on the above description, this utility model provides a filter assembly and a candle filter, aiming to solve the problem that the discharge efficiency of existing filter assemblies is low due to the influence of local stagnation during liquid discharge.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] In a first aspect, a filtering component includes:

[0007] A terminal having a first surface and a second surface opposite to each other, wherein a plurality of connection holes are provided on the terminal extending from the first surface to the second surface;

[0008] An end cap is disposed on the first surface. An arc-shaped groove is formed on the side of the end cap facing the first surface. A drain port communicating with the arc-shaped groove is formed on the end cap. When the end cap is closed with the first surface, a sealed space can be formed between the arc-shaped groove and the first surface.

[0009] Multiple filter elements are arranged opposite to the second surface, and the drain ends of the multiple filter elements are inserted into the multiple connection holes one by one.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, each of the filter elements is provided with a drainage tube, one end of which faces the second surface and is inserted into the connection hole, and the drainage tube is provided with multiple liquid inlet holes.

[0012] Furthermore, the connecting hole is a stepped hole, which has a connecting section and a plug-in section. The drain end of the filter element is connected to the connecting section, and the end of the drain tube facing the second surface is inserted into the plug-in section.

[0013] Furthermore, it includes a filter screen disposed opposite to the second surface, and the plurality of filter elements are located within the filter screen.

[0014] Furthermore, the end of the filter screen facing away from the second surface is constructed in an arc shape.

[0015] Furthermore, the second surface is provided with a ring, and one end of the filter screen facing the second surface is inserted into the ring. A limiting plate is provided between the ring and the filter screen. The filter assembly includes an elastic element, which is sleeved on the filter screen. One end of the elastic element abuts against the second surface, and the other end of the elastic element abuts against the flange of the filter screen.

[0016] Furthermore, a positioning groove is provided at one end of the flange away from the elastic member, and the other end of the elastic member abuts against the wall surface of the positioning groove facing the second surface.

[0017] Furthermore, the second surface is provided with at least two guide portions, which are located inside the annulus. The filter screen is provided with a mating portion corresponding to each of the guide portions, and the guide portions and the mating portions are slidably connected.

[0018] Furthermore, a bushing is provided between the limiting plate and the filter screen and / or between the flange and the ring.

[0019] In a second aspect, a candle filter includes the filtering components described in the first aspect.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0021] (1) The application can collect all the liquid filtered by the filter element through the sealed space formed by the arc groove and the first surface, thus avoiding liquid retention or secondary pollution.

[0022] (2) This application reduces the liquid flow rate by using the axial flow design of the drainage tube to avoid direct impact on the inner wall of the end cap.

[0023] (3) This application pushes the filter screen to move axially when the liquid impacts the end of the filter screen away from the second surface, and causes the elastic element to deform or reset, so as to absorb the impact force suffered by the filter screen and further reduce the possibility of local deformation of the filter screen. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0025] Figure 1 This is an assembly drawing of a filter assembly provided in an embodiment of the present utility model;

[0026] Figure 2 This is a cross-sectional view of a filtering component provided in an embodiment of the present utility model;

[0027] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the assembly of the terminals, end caps and filter elements in an embodiment of this utility model;

[0029] Figure 5 This is a schematic diagram of the terminal structure in an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the end cap structure in an embodiment of the present utility model;

[0031] Figure 7 This is a schematic diagram of the drainage tube in an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the filter screen in an embodiment of this utility model.

[0033] The attached diagram is described below:

[0034] 10. Terminal; 11. Connecting hole; 111. Connecting section; 112. Plug-in section; 12. Ring; 13. Limiting plate; 14. Guide part;

[0035] 20. End cap; 21. Arc-shaped groove; 22. Drain port;

[0036] 30. Filter element; 31. Drain tube; 311. Liquid inlet port;

[0037] 40. Filter screen; 401. Flange; 41. Positioning groove; 42. Mating part;

[0038] 50. Elastic components. Detailed Implementation

[0039] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0041] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0042] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0043] See attached document Figures 1-2As shown in Figures 4 and 6, this utility model provides a technical solution: a filter assembly, including a terminal 10, an end cap 20, and a plurality of filter elements 30. The terminal 10 has a first surface and a second surface facing each other, and a plurality of connection holes 11 are provided on the terminal 10, extending from the first surface to the second surface. The end cap 20 is disposed on the first surface, and an arc-shaped groove 21 is provided on the side of the end cap 20 facing the first surface. A drain port 22 communicating with the arc-shaped groove 21 is provided on the end cap 20. When the end cap 20 is closed with the first surface, a sealed space can be formed between the arc-shaped groove 21 and the first surface. The plurality of filter elements 30 are arranged opposite to the second surface, and the drain ends of the plurality of filter elements 30 are inserted into the plurality of connection holes 11 one by one.

[0044] For example, terminal 10 and end cap 20 can be connected by fasteners, such as bolts or screws. The drain end of filter element 30 and connection hole 11 can be threaded, etc. Filter element 30 can be a disc filter element 30, etc.

[0045] In this embodiment, the liquid enters from the outside of the filter element 30, is filtered by the filter element 30, and then flows into the receiving space through the drain end and the connecting hole 11, and finally is discharged through the drain port 22 of the end cap 20. In this way, the sealed space formed by the arc groove 21 and the first surface can collect all the liquid filtered by the filter element 30, avoiding liquid retention or secondary pollution.

[0046] See attached document Figure 2 and 7 As shown, in some embodiments, each filter element 30 is provided with a drainage tube 31, one end of the drainage tube 31 facing the second surface is inserted into the connection hole 11, and the drainage tube 31 is provided with a plurality of liquid inlet holes 311.

[0047] In this embodiment, the liquid filtered by the filter element 30 enters the drainage pipe 31 through the inlet hole 311, and then flows into the sealed space through the drain end and the connection hole 11. The axial flow design of the drainage pipe 31 reduces the liquid flow velocity and avoids direct impact on the inner wall of the end cap 20.

[0048] See attached document Figure 2 and 7 As shown, in some embodiments, the connecting hole 11 is a stepped hole, which has a connecting section 111 and a plug-in section 112. The drain end of the filter element 30 is connected to the connecting section 111, and the end of the drain tube 31 facing the second surface is inserted into the plug-in section 112.

[0049] For example, the drain end of the filter element 30 and the connecting section 111 can be threaded or the like. The end of the drain tube 31 facing the second surface and the insertion section 112 can be clearance fitted or the like; if necessary, a sealing ring can be provided between the end of the drain tube facing the second surface and the insertion section 112.

[0050] In this embodiment, the stepped holes can connect both the filter element 30 and the drainage tube 31. At the same time, the insertion section 112, in conjunction with the drainage tube 31, blocks the sealed space and the filter element 30, preventing the filtered liquid from flowing back into the filter element 30.

[0051] See attached document Figures 1-2 As shown, in some embodiments, the filter assembly includes a filter screen 40 disposed opposite to the second surface, and a plurality of filter elements 30 are located within the filter screen 40.

[0052] For example, filter 40 may be attached to the second surface.

[0053] In this embodiment, the filter screen 40 intercepts large particulate impurities, reducing the burden on the filter element 30 and extending its service life.

[0054] See attached document Figures 1-2 As shown, in some embodiments, the end of the filter 40 facing away from the second surface is configured as an arc.

[0055] In this embodiment, such a shape can disperse the liquid impact force, allowing the liquid to flow in all directions. On the one hand, it avoids the liquid directly impacting the end of the filter element 30 away from the second surface, preventing the filter element 30 from deforming; on the other hand, it avoids the liquid directly impacting the end of the filter screen 40 away from the second surface, preventing the filter screen 40 from being locally deformed.

[0056] See attached document Figures 2-3 As shown in Figures 5 and 6, in some embodiments, the second surface is provided with a ring 12, and one end of the filter screen 40 facing the second surface is inserted into the ring 12. A limiting plate 13 is provided between the ring 12 and the filter screen 40. The filter assembly includes an elastic member 50, which is sleeved on the filter screen 40. One end of the elastic member 50 abuts against the second surface, and the other end of the elastic member 50 abuts against the flange 401 of the filter screen 40.

[0057] For example, the elastic element 50 can be a spring or an elastic rubber ring, etc.

[0058] In this embodiment, when liquid impacts the end of the filter screen 40 away from the second surface, the filter screen 40 can move axially and cause the elastic element 50 to deform or reset, so as to absorb the impact force suffered by the filter screen 40 and further reduce the possibility of local deformation of the filter screen 40.

[0059] See attached document Figure 3 and 8 As shown, in some embodiments, the flange 401 has a positioning groove 41 at one end away from the elastic member 50, and the other end of the elastic member 50 abuts against the wall of the positioning groove 41 facing the second surface.

[0060] In this embodiment, the positioning groove 41 can block the end of the elastic member 50 that is away from the second surface, prevent the elastic member 50 from deflecting, and ensure that the elastic member 50 is subjected to uniform force.

[0061] See attached document Figures 2-3 As shown in Figures 5 and 8, in some embodiments, the second surface is provided with at least two guide portions 14, which are located inside the annulus 12. The filter screen 40 is provided with a mating portion 42 corresponding to each guide portion 14, and the guide portion 14 and the mating portion 42 are slidably connected.

[0062] For example, the guide portion 14 can be a guide protrusion or a guide rod, and the mating portion 42 can be a groove or a guide hole; when the guide portion 14 is a guide protrusion, the mating portion 42 is a groove; when the guide portion 14 is a guide rod, the mating portion 42 is a guide hole.

[0063] In this embodiment, when the filter screen 40 moves axially, the guide portion 14 slides along the mating portion 42, thereby ensuring the stability of the movement of the filter screen 40.

[0064] See attached document Figures 2-3 As shown, in some embodiments, bushings are provided between the limiting plate 13 and the filter screen 40 and / or between the flange 401 and the ring 12.

[0065] For example, the bushing material can be polytetrafluoroethylene, etc.

[0066] In this embodiment, when the filter screen 40 moves axially, the bushing reduces frictional losses between the limiting plate 13 and the filter screen 40 and / or between the flange 401 and the ring 12, which not only ensures the smooth movement of the filter screen 40, but also reduces noise caused by friction.

[0067] This utility model provides a technical solution: a candle filter, including the above-mentioned filter components.

[0068] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A filter assembly, characterized in that, include: The terminal (10) has a first surface and a second surface opposite to each other, and the terminal (10) has a plurality of connection holes (11) extending from the first surface to the second surface. An end cap (20) is provided on the first surface. An arc-shaped groove (21) is provided on the side of the end cap (20) facing the first surface. A drain port (22) communicating with the arc-shaped groove (21) is provided on the end cap (20). When the end cap (20) is closed with the first surface, a sealed space can be formed between the arc-shaped groove (21) and the first surface. Multiple filter elements (30) are arranged opposite to the second surface, and the drain ends of the multiple filter elements (30) are inserted into the multiple connection holes (11) one by one.

2. The filter assembly according to claim 1, characterized in that, Each of the filter elements (30) is provided with a drainage tube (31), one end of the drainage tube (31) facing the second surface is inserted into the connection hole (11), and the drainage tube (31) is provided with multiple liquid inlet holes (311).

3. The filter assembly according to claim 2, characterized in that, The connecting hole (11) is a stepped hole, which has a connecting section (111) and a plug-in section (112). The drain end of the filter element (30) is connected to the connecting section (111), and the end of the drain tube (31) facing the second surface is inserted into the plug-in section (112).

4. The filter assembly according to any one of claims 1 to 3, characterized in that, Includes a filter screen (40) disposed opposite to the second surface, and the plurality of filter elements (30) are located within the filter screen (40).

5. The filter assembly according to claim 4, characterized in that, The end of the filter (40) facing away from the second surface is constructed in an arc shape.

6. The filter assembly according to claim 5, characterized in that, The second surface is provided with a ring (12), and the end of the filter screen (40) facing the second surface is inserted into the ring (12). A limiting plate (13) is provided between the ring (12) and the filter screen (40). The filter assembly includes an elastic element (50), which is sleeved on the filter screen (40). One end of the elastic element (50) abuts against the second surface, and the other end of the elastic element (50) abuts against the flange (401) of the filter screen (40).

7. The filter assembly according to claim 6, characterized in that, The flange (401) has a positioning groove (41) at one end away from the elastic member (50), and the other end of the elastic member (50) abuts against the wall of the positioning groove (41) facing the second surface.

8. The filter assembly according to claim 7, characterized in that, The second surface is provided with at least two guide portions (14), which are located inside the annulus (12). The filter screen (40) is provided with a mating portion (42) corresponding to each of the guide portions (14), and the guide portions (14) and the mating portions (42) are slidably connected.

9. The filter assembly according to claim 8, characterized in that, A bushing is provided between the limiting plate (13) and the filter screen (40) and / or between the flange (401) and the ring (12).

10. A candle filter, characterized in that, Includes the filter assembly according to any one of claims 1 to 9.

Images