A high-pressure resistant PP filter element with a lining structure

Abstract

The present invention relates to the technical field related to PP filters, and specifically relates to a high-pressure resistant PP filter with a lining structure. The high-pressure resistant PP filter with a lining structure includes a filter element body, a docking seat, a lining structure, and an impurity accumulation cavity. The filter element body is in a cylindrical structure with a sealed bottom end. The docking seat is fixedly connected to the open end of the filter element body, and internal and external thread structures are respectively provided on the inner and outer side walls of the docking seat. By providing a high-pressure resistant PP filter composed of a combination of a filter element body, a docking seat, a lining structure, and an impurity accumulation cavity, and by setting the lining structure to be composed of a combination of multiple buffer sheets and reinforcing ribs, ensuring that the size of the upper buffer sheet is larger than that of the lower buffer sheet, and ensuring that there is a gap between adjacent buffer sheets, a stepped buffer structure is formed, thereby effectively reducing the direct impact of the fluid on the filter element body, effectively protecting the filter element body, and ensuring the actual pressure-bearing strength of the filter element body.

Description

Technical Field

[0001] The present invention relates to the technical field related to PP filters, and specifically to a high-pressure resistant PP filter with a lining structure. Background Art

[0002] The PP filter, also known as the melt-blown filter, is a tubular filter made of non-toxic and odorless polypropylene particles through processes such as heating and melting, spinning, drawing, and receiving and forming. It is not only widely used in the water purification industry but also has excellent chemical compatibility, so it is also applicable to the filtration of strong acids, strong alkalis, and organic solvents.

[0003] When in use, the PP filter needs to withstand the continuous impact of fluid for a long time. Therefore, high requirements are placed on the surface pressure resistance and structural strength of the PP filter. However, the existing PP filters have low structural strength and are prone to deformation under the continuous impact of fluid, resulting in a short service life. Moreover, the filtration effect will be affected after deformation, so there are still certain defects in the actual application of traditional PP filters. For this reason, the present invention proposes a high-pressure resistant PP filter with a lining structure to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-pressure resistant PP filter with a lining structure to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A high-pressure resistant PP filter with a lining structure, the high-pressure resistant PP filter with a lining structure includes:

[0006] A filter element body, the filter element body is in a cylindrical structure with a sealed bottom end;

[0007] A docking seat, the docking seat is fixedly connected to the open end of the filter element body, and internal and external thread structures are respectively provided on the inner and outer side walls of the docking seat, and a docking groove is provided on the lower end surface of the docking seat;

[0008] A lining structure, the lining structure is arranged in the inner cavity of the filter element body;

[0009] An impurity accumulation cavity, the impurity accumulation cavity is arranged in the inner cavity of the filter element body, and the impurity accumulation cavity is fixedly connected to the bottom of the lining structure;

[0010] The filter element body is installed in the inner cavity of the filter outer cylinder. An outlet is provided at the bottom of the filter outer cylinder. An installation seat is integrally formed at the top port of the filter outer cylinder. The docking seat is screwed and installed on the installation seat, and a water inlet pipe is screwed and installed at the internal thread of the docking seat.

[0011] Preferably, the inner lining structure is composed of a buffer sheet and a reinforcing rib. The buffer sheet is arranged in a horn shape, and there are multiple layers of buffer sheets. There is a gap between adjacent buffer sheets. The size of the upper buffer sheet is larger than that of the lower buffer sheet, and the buffer sheets are connected by reinforcing ribs. The reinforcing ribs and the buffer sheets are welded together. The reinforcing ribs are rod-shaped structures, and eight reinforcing ribs are arranged equidistantly in a circular pattern. The buffer sheets are combined to form an inverted tower-like structure.

[0012] Preferably, an opening groove is formed on the side wall of the small opening of the buffer sheet. The opening grooves are arranged in a circular pattern, and the distance between adjacent opening grooves is equal to the width of the opening groove.

[0013] Preferably, the opening grooves on adjacent buffer sheets of the inner lining structure are arranged in a staggered manner, and the buffer sheets are made of a ductile material.

[0014] Preferably, the impurity accumulation cavity is a container structure with a closed upper end. No opening groove is formed on the lowermost buffer sheet, and the port of the impurity accumulation cavity is fixedly welded to the lower side surface of the lowermost buffer sheet.

[0015] Preferably, a first-level reinforcing protrusion and a second-level reinforcing protrusion are respectively arranged on the inner and outer side walls of the docking groove. The filter element body and the docking seat are integrally formed, and both the first-level reinforcing protrusion and the second-level reinforcing protrusion are embedded in the side wall of the filter element body.

[0016] Preferably, both the first-level reinforcing protrusion and the second-level reinforcing protrusion are annularly arranged, and they are arranged in a staggered manner.

[0017] Preferably, an eaves is integrally formed on the outer side wall of the upper end of the docking seat, and the cross-section of the eaves is a regular hexagon.

[0018] Preferably, a first-level sealing groove is formed on the lower surface of the eaves, a limiting seat is integrally formed on the inner side wall of the docking seat, a second-level sealing groove is formed on the upper surface of the limiting seat. A first-level sealing gasket and a second-level sealing gasket are respectively embedded in the first-level sealing groove and the second-level sealing groove. When the docking seat is actually docked, both the first-level sealing gasket and the second-level sealing gasket are in a compressed state.

[0019] Preferably, sealing rings are integrally formed at the bottom of the first-level sealing groove, the second-level sealing groove and the end face positions of the components corresponding to the first-level sealing groove and the second-level sealing groove when the docking seat is actually installed. The sealing rings are annular protrusion structures with a semi-circular cross-section. When the docking seat is actually docked, the sealing rings are embedded in the rubber bodies of the sealing gaskets.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. By setting a high-pressure-resistant PP filter element composed of a filter element body, a docking seat, a lining structure, and an impurity accumulation cavity, and setting the lining structure to be composed of a combination of multiple buffer sheets and reinforcing ribs, ensuring that the size of the upper buffer sheet is larger than that of the lower buffer sheet, and ensuring that there is a gap between adjacent buffer sheets, a stepped buffer structure is formed, thereby effectively reducing the direct impact of the fluid on the filter element body, effectively protecting the filter element body, and ensuring the actual pressure-bearing strength of the filter element body;

[0022] 2. And by opening an opening groove on the buffer sheet, a strip-shaped comb structure is formed on the inner side of the buffer sheet, and the impact force of the fluid is unloaded by using the comb structure of the ductile material, thereby further improving the protection effect on the filter element body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is an actual usage effect diagram of the present invention;

[0025] Figure 3 is a half-sectional view of the present invention;

[0026] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0027] Figure 5 is Figure 4 an enlarged schematic diagram of the structure at B in

[0028] Figure 6 is Figure 4 an enlarged schematic diagram of the structure at C in

[0029] Figure 7 is a schematic diagram of the lining structure of the present invention;

[0030] Figure 8 is Figure 7 an enlarged schematic diagram of the structure at D in

[0031] Figure 9 is Figure 8 an enlarged schematic diagram of the structure at E in

[0032] Figure 10 is Figure 8 an enlarged schematic diagram of the structure at F in

[0033] Figure 11 is a half-sectional view of the docking seat of the present invention;

[0034] Figure 12 is Figure 11 an enlarged schematic diagram of the structure at G in

[0035] Figure 13 For Figure 12 A schematic enlarged view of the structure at position H in

[0036] In the figure: filter element body 1, docking seat 2, inner lining structure 3, impurity accumulation cavity 4, docking groove 5, filter outer cylinder 6, water outlet 7, mounting seat 8, water inlet pipe 9, buffer piece 10, reinforcing rib 11, opening groove 12, first-level reinforcing protrusion 13, second-level reinforcing protrusion 14, first-level sealing groove 15, limit seat 16, second-level sealing groove 17, first-level sealing washer 18, second-level sealing washer 19, sealing ring 20. Specific embodiments

[0037] In order to clearly and completely describe the objectives, technical solutions of the present invention and make the advantages more clearly understood, the following further elaborates on the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "install", "connect", "couple" 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] For the purposes of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are set forth to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring these embodiments. Additionally, all embodiments can be used in combination with each other.

[0041] Please refer to Figure 1-13 , the present invention provides embodiments of the following six preferred solutions:

[0042] Embodiment 1

[0043] A high-pressure resistant PP filter element with a lining structure, the high-pressure resistant PP filter element with a lining structure includes a filter element body 1, a docking seat 2, a lining structure 3, and an impurity accumulation cavity 4. The filter element body 1 is in a cylindrical structure with a sealed bottom end. The docking seat 2 is fixedly connected to the open end of the filter element body 1, and inner and outer thread structures are respectively provided on the inner and outer side walls of the docking seat 2. A docking groove 5 is provided on the lower end surface of the docking seat 2. The lining structure 3 is arranged in the inner cavity of the filter element body 1. The impurity accumulation cavity 4 is arranged in the inner cavity of the filter element body 1, and the impurity accumulation cavity 4 is fixedly connected to the bottom of the lining structure 3. The filter element body 1 is installed in the inner cavity of the filter outer cylinder 6. A water outlet 7 is provided at the bottom of the filter outer cylinder 6. An installation seat 8 is integrally formed at the top port of the filter outer cylinder 6. The docking seat 2 is screwed and installed on the installation seat 8, and a water inlet pipe 9 is screwed and installed at the inner thread of the docking seat 2.

[0044] The lining structure 3 is composed of a combination of buffer sheets 10 and reinforcing ribs 11. The buffer sheets 10 are arranged in a horn shape, and there are multiple layers of buffer sheets 10. A gap is left between adjacent buffer sheets 10. The size of the upper buffer sheet 10 is larger than that of the lower buffer sheet 10. The buffer sheets 10 are connected by the reinforcing ribs 11, and the connection between the reinforcing ribs 11 and the buffer sheets 10 is a welded connection. The reinforcing ribs 11 are in a rod structure, and eight reinforcing ribs 11 are arranged equidistantly in a circumferential manner. The buffer sheets 10 form an inverted tower-shaped structure in combination. By providing a high-pressure resistant PP filter element composed of a combination of the filter element body 1, the docking seat 2, the lining structure 3, and the impurity accumulation cavity 4, and by setting the lining structure 3 to be composed of a combination of multiple buffer sheets 10 and reinforcing ribs 11, ensuring that the size of the upper buffer sheet 10 is larger than that of the lower buffer sheet 10, and ensuring that a gap is left between adjacent buffer sheets 10, a stepped buffer structure is formed, effectively reducing the direct impact of the fluid on the filter element body 1, effectively protecting the filter element body 1, and ensuring the actual pressure-bearing strength of the filter element body 1.

[0045] Embodiment 2

[0046] On the basis of Embodiment 1, an opening groove 12 is provided on the side wall of the small opening of the buffer sheet 10. A circle of opening grooves 12 are arranged equidistantly in a circumferential manner, and the distance value between adjacent opening grooves 12 coincides with the width value of the opening groove 12.

[0047] The opening grooves 12 on adjacent buffer sheets 10 of the inner lining structure 3 are arranged in a staggered manner, and the buffer sheet 10 is made of a ductile material. By providing the opening grooves 12 on the buffer sheet 10, a strip-shaped comb structure is formed on the inner side of the buffer sheet 10, so as to unload the impact force of the fluid by using the comb structure of the ductile material, thereby further improving the protection effect on the filter element body 1.

[0048] Embodiment 3

[0049] On the basis of Embodiment 2, the impurity accumulation cavity 4 is a container structure with a closed upper end, and no opening groove 12 is provided on the lowermost buffer sheet 10. The port of the impurity accumulation cavity 4 is fixedly welded to the lower side of the lowermost buffer sheet 10, which is convenient for independently collecting some impurities, thereby improving the actual service life of the filter element body 1.

[0050] Embodiment 4

[0051] On the basis of Embodiment 3, a first-level reinforcement protrusion 13 and a second-level reinforcement protrusion 14 are respectively provided on the inner and outer side walls of the docking groove 5. The filter element body 1 and the docking seat 2 are integrally formed, and both the first-level reinforcement protrusion 13 and the second-level reinforcement protrusion 14 are embedded in the side wall of the filter element body 1 to ensure the connection strength between the filter element body 1 and the docking seat 2.

[0052] Both the first-level reinforcement protrusion 13 and the second-level reinforcement protrusion 14 are annularly arranged, and the first-level reinforcement protrusion 13 and the second-level reinforcement protrusion 14 are arranged in a staggered manner to prevent the cross-section of the filter element body 1 from being too small due to the same position of the first-level reinforcement protrusion 13 and the second-level reinforcement protrusion 14, which affects its overall strength.

[0053] Embodiment 5

[0054] On the basis of Embodiment 4, a rim is integrally formed on the outer side wall of the upper end of the docking seat 2. The cross-section of the rim is a regular hexagon, which is convenient for screwing and disassembling the structure.

[0055] Embodiment 6

[0056] On the basis of the fifth embodiment, a first - stage sealing groove 15 is formed on the lower surface of the side eaves, a limiting seat 16 is integrally formed on the inner side wall of the docking seat 2, a second - stage sealing groove 17 is formed on the upper surface of the limiting seat 16, a first - stage sealing washer 18 and a second - stage sealing washer 19 are respectively embedded in the first - stage sealing groove 15 and the second - stage sealing groove 17, and when the docking seat 2 is actually docked, its first - stage sealing washer 18 and second - stage sealing washer 19 are both in a compressed state. Through the arrangement of the first - stage sealing washer 18 and the second - stage sealing washer 19, the sealing performance at the structure installation position is effectively guaranteed.

[0057] Sealing rings 20 are integrally formed at the bottom of the first - stage sealing groove 15 and the second - stage sealing groove 17 and at the end face positions of the components corresponding to the first - stage sealing groove 15 and the second - stage sealing groove 17 on the docking seat 2 during actual installation. The sealing ring 20 is a circular - convex structure with a semicircular cross - section. When the docking seat 2 is actually docked, its sealing rings 20 are all embedded in the rubber body of the sealing washer. Through the arrangement of the sealing ring 20 and ensuring that the sealing rings 20 are all embedded in the rubber body of the sealing washer, the sealing performance at the connection position is further improved.

[0058] Although the above - described illustrative specific embodiments of the present application have been described to enable those skilled in the art of the present technology to understand the present application, the present application is not limited to the scope of the specific embodiments. For those of ordinary skill in the art of the present technology, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all application creations using the concept of the present application are within the scope of protection.

Claims

1. A high-pressure resistant PP filter element with a lining structure, characterized in that: The high-pressure resistant PP filter element with a lining structure includes: A filter element body (1), which is in a cylindrical structure with a sealed bottom end; A docking seat (2), which is fixedly connected to the open end of the filter element body (1). Inner and outer thread structures are respectively provided on the inner and outer side walls of the docking seat (2), and a docking groove (5) for clamping into the open end of the filter element body (1) is provided on the lower end face of the docking seat (2); A lining structure (3), which is arranged in the inner cavity of the filter element body (1); the lining structure (3) is composed of a combination of multiple buffer sheets (10) and reinforcing ribs (11); the buffer sheets (10) are arranged in a horn shape, and there is a gap between adjacent buffer sheets (10). The size of the upper buffer sheet (10) is larger than that of the lower buffer sheet (10); the buffer sheets (10) are connected by the reinforcing ribs (11); open slots (12) are provided on the small-mouth side walls of the buffer sheets (10) except for the lowermost buffer sheet (10); An impurity accumulation cavity (4), which is arranged in the inner cavity of the filter element body (1), and the impurity accumulation cavity (4) is fixedly connected to the bottom of the lining structure (3); The filter element body (1) is installed in the inner cavity of a filter outer cylinder (6). A water outlet (7) is provided at the bottom of the filter outer cylinder (6). A mounting seat (8) is integrally formed at the top port of the filter outer cylinder (6). The docking seat (2) is screwed and installed on the mounting seat (8), and a water inlet pipe (9) is screwed and installed at the inner thread of the docking seat (2); the fluid flowing in through the water inlet pipe (9) flows into the filter element body (1) through each buffer sheet (10), and then flows into the cavity between the filter element body (1) and the filter outer cylinder (6) after being filtered by the filter element body (1).

2. The high-pressure resistant PP filter element with a lining structure according to claim 1, wherein: The reinforcing ribs (11) and the buffer sheets (10) are connected by welding. The reinforcing ribs (11) are in a rod structure, and eight reinforcing ribs (11) are arranged equidistantly in a circle. The buffer sheets (10) form an inverted tower-like structure in combination.

3. A high-pressure resistant PP filter element with a lining structure according to claim 1, characterized in that: The open slots (12) are arranged in a circle equidistantly, and the distance value between adjacent open slots (12) coincides with the width value of the open slots (12).

4. A high-pressure resistant PP filter element with a lining structure according to claim 3, characterized in that: The open slots (12) on adjacent buffer sheets (10) of the lining structure (3) are arranged in a staggered manner, and the buffer sheets (10) are made of a ductile material.

5. A high-pressure resistant PP filter element with a lining structure according to claim 1, characterized in that: The impurity accumulation cavity (4) is in a container structure with a closed upper end, and the port of the impurity accumulation cavity (4) is fixedly welded to the lower side surface of the lowermost buffer sheet (10).

6. The high-pressure resistant PP filter element with a lining structure according to claim 1, characterized in that: First-level reinforcing protrusions (13) and second-level reinforcing protrusions (14) are respectively provided on the inner and outer side walls of the docking groove (5). The filter element body (1) and the docking seat (2) are integrally formed, and both the first-level reinforcing protrusions (13) and the second-level reinforcing protrusions (14) are embedded into the side wall of the filter element body (1).

7. A high-pressure resistant PP filter element with a lining structure according to claim 6, characterized in that: The first-level reinforcement protrusions (13) and the second-level reinforcement protrusions (14) are both arranged in a ring shape, and there is a dislocation between the first-level reinforcement protrusions (13) and the second-level reinforcement protrusions (14).

8. A high-pressure resistant PP filter element with a lining structure according to claim 1, characterized in that: An eaves is integrally formed on the outer side wall of the upper end of the docking seat (2), and the cross-section of the eaves is a regular hexagon.

9. The high-pressure resistant PP filter element with a lining structure according to claim 8, wherein: A first-level sealing groove (15) is formed on the lower surface of the eaves. A limiting seat (16) is integrally formed on the inner side wall of the docking seat (2). A second-level sealing groove (17) is formed on the upper surface of the limiting seat (16). A first-level sealing gasket (18) and a second-level sealing gasket (19) are respectively embedded in the first-level sealing groove (15) and the second-level sealing groove (17). When the docking seat (2) is actually docked, the first-level sealing gasket (18) and the second-level sealing gasket (19) are both in a compressed state.

10. The high-pressure resistant PP filter element with a lining structure according to claim 9, wherein: Sealing rings (20) are integrally formed at the bottom of the first-level sealing groove (15) and the second-level sealing groove (17) and at the end face positions of the components corresponding to the first-level sealing groove (15) and the second-level sealing groove (17) when the docking seat (2) is actually installed. The sealing rings (20) are annular protrusion structures with a semi-circular cross-section. When the docking seat (2) is actually docked, the sealing rings (20) are all embedded into the rubber bodies of the sealing gaskets.

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