Filter element connector piece applied to high-temperature sterilization environment and enhanced filter element

Abstract

The invention relates to the technical field of filter elements, in particular to a filter element connector piece applied to a high-temperature sterilization environment and an enhanced filter element. The filter element connector piece comprises a first connector main body piece, a second connector main body piece, a connector reinforcing piece arranged on the inner side of the second connector main body piece and a sealing element arranged on the outer side of the second connector main body piece, wherein the first connector main body piece and the second connector main body piece are in a circular ring shape and are fixedly connected; wherein the second interface main body piece is arranged at the end part of the first interface main body piece, and the central axes and the inner diameters of the second interface main body piece and the first interface main body piece are the same; the inner side of the second interface main body piece is provided with a mounting groove matched with the interface reinforcing piece; a sealing groove used for being matched with a sealing element is formed in the outer side of the second connector body piece. Compared with an existing filter element connector, the filter element connector provided by the invention has the advantages that the shrinkage deformation of the filter element connector can be reduced, the sealing performance of the filter element and an external filter shell is guaranteed, and the filtering capacity and the stability of the filter element are improved.

Description

Technical Field

[0001] The invention relates to the technical field of filter elements, and in particular to a filter element interface component and an enhanced filter element used in a high-temperature sterilization environment. Background Art

[0002] The filter element is usually assembled by welding the filter element cylinder, the filter element interface and the end cover; among them, the filter element interface is particularly important in the service life of the filter element. The filter element interface can realize the connection between the filter element and the filter housing. It is generally divided into press-in interface and snap-in interface. For filter elements that need backwashing, snap-in interface is required to ensure the stability of the filter element after installation and the sealing and locking between the filter and the filter to prevent liquid leakage and pollution.

[0003] However, the filter element interface is generally made of plastic parts, which are prone to heat shrinkage and heat deformation in the use environment of steam sterilization, especially in the groove where the sealing element is installed, because the plastic parts here are stepped, the thinner wall thickness has poorer deformation resistance, and is more affected by stress concentration. In addition, for larger filter element interfaces, the possibility of shrinkage and deformation in the groove of the sealing element is greater; once the interface and the filter housing become loose and cannot be sealed, the filtrate will be contaminated with bacteria, causing immeasurable losses.

[0004] Therefore, facing the high-temperature sterilization environment, it is very important to provide a filter element interface component that can solve the above problems. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a filter element interface and an enhanced filter element for use in a high-temperature sterilization environment. The filter element interface of the present invention is an enhanced and improved design on the existing filter element interface, and further provides an enhanced filter element; compared with the existing filter element interface, the filter element interface provided by the present invention can reduce the shrinkage deformation of the filter element interface, ensure the sealing performance of the filter element and the filter housing, and improve the filtering capacity and stability of the filter element.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] The first object of the present invention is to provide a filter element interface member for use in a high-temperature sterilization environment, the filter element interface member comprising a first interface main member and a second interface main member (integrated) which are annular and fixedly connected, an interface reinforcement member arranged on the inner side of the second interface main member, and a sealing element arranged on the outer side of the second interface main member;

[0008] The second interface main body is arranged at the end of the first interface main body, and the central axis and inner diameter of the two are the same;

[0009] The inner side of the second interface main body is provided with a mounting groove for matching with the interface reinforcement member, and the second interface main body and the interface reinforcement member are fixedly connected by an injection molding process;

[0010] A sealing groove for cooperating with a sealing element is arranged on the outer side of the second interface main body. The sealing element forms a tight fit with the second interface main body and also achieves a tight fit with the inner hole of the filter housing.

[0011] In the present invention, the interface main body (the first interface main body and the second interface main body) is in the shape of a stepped cylinder, which is used to match and position with the filter housing and is welded with the filter element filter body; the interior is hollow and docked with the center column of the filter element for the filtrate to enter and exit; a sealing groove is provided, and the sealing element is inserted into the sealing groove to achieve a tight fit; and a mounting groove is provided to accommodate the interface reinforcement member;

[0012] The interface reinforcement is used to strengthen the groove of the sealing element to prevent shrinkage and deformation;

[0013] The sealing element is used to achieve a sealing fit between the filter element interface piece and the filter housing.

[0014] In one embodiment of the present invention, the outer diameter of the first interface main body is greater than the outer diameter of the second interface main body.

[0015] In one embodiment of the present invention, along the direction of the center axis of the second interface main body, the length area of ​​the mounting groove covers the length area of ​​the sealing groove, and the length of the mounting groove is greater than the length of the sealing groove (to achieve the purpose of reinforcement).

[0016] In one embodiment of the present invention, the inner diameter of the mounting groove is matched with the outer diameter of the interface reinforcement member (ensuring that after the interface reinforcement member is installed in the mounting groove, the inner diameter of the interface reinforcement member is flush with the inner surface of the second main body member, and the transition is smooth without protrusions or depressions);

[0017] The inner diameter of the interface reinforcement component is the same as the inner diameter of the second interface main body component.

[0018] In one embodiment of the present invention, the outer diameter of the sealing element is greater than the outer diameter of the second interface main body.

[0019] In one embodiment of the present invention, the difference in diameter of the sealing element protruding from the second interface main body is 25% to 35% of the wire diameter of the sealing element.

[0020] In one embodiment of the present invention, the interface reinforcement member is a thin-walled metal member.

[0021] In one embodiment of the present invention, the interface reinforcement member is a food-grade thin-walled metal member.

[0022] In one embodiment of the present invention, a latch is provided on the outer side of the second interface main body (the latch is used to screw into the filter housing and lock it);

[0023] The lugs are symmetrically arranged along the central axis formed in the circumferential direction of the second interface main body;

[0024] The outer side of the snap-in ear is provided with an arc-shaped section (to facilitate the snap-in interface to be screwed into the filter housing, thereby achieving sealing and locking with the filter housing).

[0025] In one embodiment of the present invention, two clamps are provided.

[0026] The second object of the present invention is to provide an enhanced filter element, comprising the above-mentioned filter element interface, a filter element filter body (for filtering and retaining the original liquid) and a filter element end cover;

[0027] One end of the filter element filter body is fixedly connected to the first interface main body of the filter element interface component, and the other end is fixedly connected to the filter element end cover.

[0028] In one embodiment of the present invention, the filter element filter body comprises an outer frame, a central column disposed in the outer frame, and a filter material filled between the outer frame and the central column (the outer frame and the central column support the filter material);

[0029] The outer frame and the central column have the same central axis;

[0030] One end of the outer frame and the center column is fixedly connected to the first interface main body, and the other end is fixedly connected to the filter element end cover.

[0031] In one embodiment of the present invention, the center column is hollow inside, and its inner diameter is greater than or equal to the inner diameter of the first interface main body;

[0032] A plurality of holes are arranged on the central column and the outer frame.

[0033] During the injection molding process of the interface main body (the first interface main body and the second interface main body), the interface reinforcement part is placed in the installation groove to achieve a fixed connection between the two, and then the sealing element is inserted into the sealing groove to achieve a tight fit, thereby forming a filter element interface; after the filter element interface part is integrally formed with the filter element filter body and the filter element end cover, the filter element interface part is screwed into the filter housing through the ear and locked, and at the same time, the filter element interface part and the filter housing are sealed and connected through the sealing element.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] (1) The filter element interface of the present invention combines a plastic part (sealing element) with a metal part (interface reinforcement part), thereby improving the strength of the thin-walled part of the groove of the plastic part and enhancing the ability of the filter element interface part to resist thermal shrinkage and thermal deformation, thereby preventing the filter element from loosening after high-temperature sterilization.

[0036] (2) The enhanced filter element of the present invention proposes a specific method for designing the size of the sealing groove, which can improve the sealing between the filter element and the sealing element and the external filter housing, and further prevent loosening.

[0037] (3) The retaining ear in the enhanced filter element of the present invention is designed with a three-dimensional arc-shaped section, which can ensure the locking and sealing of the filter element interface and the filter housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of a filter element interface component of the present invention;

[0039] Figure 2 It is a structural schematic diagram of a filter element interface of the present invention (excluding sealing elements);

[0040] Figure 3 For along Figure 2 Schematic diagram of the AA section;

[0041] Figure 4 A cross-sectional view of a filter element interface of the present invention;

[0042] Figure 5 It is a cross-sectional view of a filter element interface of the present invention (excluding the sealing element and the interface reinforcement member);

[0043] Figure 6 It is a structural schematic diagram of an enhanced filter element of the present invention;

[0044] Explanation of the numbers in the figure: 1. filter element interface component; 2. filter element filter body; 3. filter element end cover; 11. first interface main component; 12. second interface main component; 13. sealing groove; 14. mounting groove; 15. sealing element; 16. interface reinforcement component; 17. ear; 21. outer frame; 22. center column; 23. filter material; Plane I is the matching surface between the second interface main component and the filter housing; Plane II is the positioning surface between the first interface main component and the filter housing; Plane III is the welding surface between the first interface main component and the filter element filter body; Planes IV and V are arc sections. DETAILED DESCRIPTION

[0045] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] In the following embodiments, unless otherwise specified, the structures or components are conventional structures or components in the art, as long as they can achieve the corresponding functions.

[0050] Example 1

[0051] This embodiment provides a filter element interface component for use in a high temperature sterilization environment, such as Figures 1 to 5 As shown, it comprises a first interface main body 11 and a second interface main body 12 which are annular and fixedly connected, an interface reinforcement member 16 arranged on the inner side of the second interface main body 12, and a sealing element 15 arranged on the outer side of the second interface main body 12;

[0052] The second interface main body 12 is arranged at the end of the first interface main body 11, and the central axis and inner diameter of the two are the same; the inner side of the second interface main body 12 is provided with a mounting groove 14 (annular groove) for matching with the interface reinforcement 16, and the second interface main body 12 and the interface reinforcement 16 are fixedly connected by an injection molding process; the outer side of the second interface main body 12 is provided with a sealing groove 13 (annular groove) for matching with the sealing element 15, and the sealing element 15 forms a tight fit with the second interface main body 12 and achieves a tight fit with the inner hole of the filter housing.

[0053] Among them, the interface main body (the first interface main body 11 and the second interface main body 12) has a stepped cylindrical shape, which is used to cooperate and position with the filter housing and is welded to the filter element filter body 2; the interior is hollow and docked with the filter element center column 22 for filtrate entry and exit; a sealing groove 13 is provided, and the sealing element 15 is inserted into the sealing groove 13 to achieve a tight fit; an installation groove 14 is provided to accommodate the interface reinforcement 16; the outer surface of the second interface main body 12 - plane I (the matching surface of the second interface main body 12 and the external filter housing) and the surface of the first interface main body 11 close to the second interface main body 12 - plane II (the positioning surface of the first interface main body 11 and the external filter housing) are used to cooperate and position with the external filter housing, and the plane of the first interface main body 11 away from the second interface main body 12 - plane III (the welding surface of the first interface main body 11 and the filter element filter body) is the welding surface, which is further welded to the filter element filter body; the interior of the first interface main body 11 and the second interface main body 12 serves as the filtrate entry and exit channel.

[0054] The interface reinforcement member 16 is used to strengthen the groove of the sealing element 15 to prevent shrinkage and deformation;

[0055] The sealing element 15 is used to achieve a sealing fit between the filter element terminal part 1 and the filter housing.

[0056] Furthermore, the outer diameter of the first interface main body 11 is greater than the outer diameter D2 of the second interface main body 12 .

[0057] Furthermore, along the center axis of the second interface main body 12 , the length h1 of the mounting groove 14 covers the length h of the sealing groove 13 , and the length h1 of the mounting groove 14 is greater than the length h of the sealing groove 13 (to achieve the purpose of reinforcement).

[0058] Furthermore, the inner diameter d1 of the mounting groove 14 is adapted to the outer diameter of the interface reinforcement 16 (ensuring that after the interface reinforcement 16 is installed in the mounting groove 14, the inner diameter of the interface reinforcement 16 is flush with the inner surface of the second interface main body 12, and the transition is smooth without protrusions or depressions); the inner diameter of the interface reinforcement 16 is the same as the inner diameter of the second interface main body 12.

[0059] Furthermore, the outer diameter D of the sealing element 15 is greater than the outer diameter D2 of the second interface main body 12 ; preferably, the diameter difference of the sealing element 15 protruding from the second interface main body 12 is 25% to 35% of the wire diameter d of the sealing element 15 .

[0060] The length h of the sealing groove 13 along the central axis direction of the second interface main body 12 is determined according to the wire diameter d and the deformation rate ε of the sealing element 15 (the deformation rate ε of the sealing element 15 is determined according to the specific operating conditions and the material of the sealing element 15 and is usually 15% to 30%). The inner diameter D1 of the sealing groove 13 is determined according to the wire diameter d of the sealing element 15, the inner hole diameter of the filter housing fitting and the deformation rate ε. Ultimately, it is necessary to ensure that the outer diameter of the sealing element 15 after installation protruding from the outer diameter D2 of the second interface main body 12 is 25% to 35% of the wire diameter d of the sealing element 15.

[0061] Further, the interface reinforcement member 16 is a thin-walled metal member; preferably, the interface reinforcement member 16 is a food-grade thin-walled metal member;

[0062] Furthermore, a snap-in ear 17 is provided on the outer side of the second interface main body 12 (the snap-in ear 17 is used to screw into the external filter housing and lock it); the snap-in ear 17 is symmetrically arranged along the central axis formed by the circumference of the second interface main body 12; the outer side of the snap-in ear 17 is provided with arc-shaped sections IV and V (to facilitate the snap-in interface to be screwed into the external filter housing, thereby achieving sealing and locking with the external filter housing); preferably, two snap-in ears 17 are provided.

[0063] Example 2

[0064] This embodiment provides an enhanced filter element, such as Figure 6 As shown, it includes the filter element interface component 1, the filter element filter body 2 (for filtering and retaining the original liquid) and the filter element end cover 3 described in Example 1; one end of the filter element filter body 2 is fixedly connected to the first interface main body 11 of the filter element interface component 1 (the surface of the connection position between the first interface main body 11 and the filter element filter body 2 is the same as the surface of the filter element filter body 2 away from the filter element end cover 3), and the other end is fixedly connected to the filter element end cover 3.

[0065] Furthermore, the filter element filter body 2 includes an outer frame 21, a central column 22 arranged in the outer frame 21, and a filter material 23 filled between the outer frame 21 and the central column 22 (the outer frame 21 and the central column 22 support the filter material 23); the central axis of the outer frame 21 and the central column 22 are the same; one end of the outer frame 21 and the central column 22 is fixedly connected to the first interface main body 11 (for example, welded), and the other end is fixedly connected to the filter element end cover 3 (for example, welded).

[0066] Furthermore, the center column 22 is hollow inside, and its inner diameter is greater than or equal to the inner diameter of the first interface main body 11 ; a plurality of holes are disposed on the center column 22 and the outer frame 21 .

[0067] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the explanation of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A filter element interface used in a high temperature sterilization environment, characterized in that: The filter element interface component (1) comprises a first interface main component (11) and a second interface main component (12) which are annular and fixedly connected, an interface reinforcement component (16) arranged on the inner side of the second interface main component (12), and a sealing element (15) arranged on the outer side of the second interface main component (12); The second interface main body (12) is arranged at the end of the first interface main body (11), and the central axis and inner diameter of the two are the same; The inner side of the second interface main body (12) is provided with a mounting groove (14) for matching with the interface reinforcement member (16); The outer side of the second interface main body (12) is provided with a sealing groove (13) for cooperating with a sealing element (15).

2. A filter element interface component used in a high temperature sterilization environment according to claim 1, characterized in that: The outer diameter of the first interface main body (11) is greater than the outer diameter of the second interface main body (12).

3. The filter element interface component used in a high temperature sterilization environment according to claim 1, characterized in that: Along the direction of the central axis of the second interface main body (12), the length area of ​​the installation groove (14) covers the length area of ​​the sealing groove (13), and the length of the installation groove (14) is greater than the length of the sealing groove (13).

4. A filter element interface component for use in a high temperature sterilization environment according to claim 3, characterized in that: The inner diameter of the mounting groove (14) is adapted to the outer diameter of the interface reinforcement member (16); The inner diameter of the interface reinforcement component (16) is the same as the inner diameter of the second interface main body component (12).

5. The filter element interface component used in a high temperature sterilization environment according to claim 3, characterized in that: The outer diameter of the sealing element (15) is greater than the outer diameter of the second interface main body (12).

6. A filter element interface component for use in a high temperature sterilization environment according to claim 5, characterized in that: The difference in diameter of the sealing element (15) protruding from the second interface main body (12) is 25% to 35% of the wire diameter of the sealing element (15).

7. The filter element interface component used in a high temperature sterilization environment according to claim 1, characterized in that: The interface reinforcement member (16) is a thin-walled metal member.

8. The filter element interface component used in a high temperature sterilization environment according to claim 1, characterized in that: The outer side of the second interface main body (12) is provided with a latch (17); The lugs (17) are symmetrically arranged along the central axis formed in the circumferential direction of the second interface main body (12); The outer side of the ear (17) is provided with an arc-shaped section.

9. An enhanced filter element, characterized in that: It comprises the filter element interface part (1), the filter element filter body (2) and the filter element end cover (3) according to any one of claims 1 to 8; One end of the filter element filter body (2) is fixedly connected to the first interface main body (11) of the filter element interface component (1), and the other end is fixedly connected to the filter element end cover (3).

10. The enhanced filter element according to claim 9, characterized in that: The filter element filter body (2) comprises an outer frame (21), a central column (22) arranged in the outer frame (21), and a filter material (23) filled between the outer frame (21) and the central column (22); The outer frame (21) and the central column (22) have the same central axis; One end of the outer frame (21) and the center column (22) is fixedly connected to the first interface main body (11), and the other end is fixedly connected to the filter element end cover (3).

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