Filter element with replaceable filter layer

Abstract

The utility model discloses a filter element with a replaceable filter layer, and relates to the related technical field of filtration. The filtering device comprises a filtering channel, an end plate, a cover plate and filtering assemblies, a U-shaped groove is formed in the filtering channel, limiting grooves distributed at equal intervals are formed in the U-shaped groove, and one filtering assembly is arranged in each limiting groove; end plates are fixed at the two ends of the filtering channel, a cover plate covers the filtering channel and the end plates, and a sealing gasket is fixed on the bottom surface of the cover plate; the filter assembly comprises a filter frame and a mounting ring fixed in the filter frame, U-shaped rubber pads are fixed on the two sides and the bottom surface of the filter frame, a cavity is formed in the mounting ring, and the cavity is filled with a filter material; and grating nets are arranged outside the two end surfaces of the filter material. By arranging the filter channel, the filter assembly, the cover plate, the sealing gasket and the rubber mat, the problems that each filter layer in the filter element cannot be replaced independently and the sealing performance of each filter layer in the filter element is insufficient are solved.

Description

Technical Field

[0001] This utility model belongs to the field of filtration-related technology, and in particular relates to a filter element with a replaceable filter layer. Background Technology

[0002] A filter element is a professional term for a device that performs filtration and purification. It's used to purify raw fluids and facilitate the separation of resources. Filter elements primarily function in gas-liquid separation, solid-liquid separation, exhaust dust filtration, and environmental protection. They separate solid particles from liquids or gases, or allow different components to come into full contact, accelerating reaction time and protecting equipment. When fluid enters a filter element containing a screen of a specific size, impurities are blocked, while clean fluid flows out. Depending on the application and the fluid being filtered, different filter media must be selected. Some fluids require the combined use of multiple filter media for filtration. However, some filter elements still have the following drawbacks in practical use:

[0003] After long-term use, each filter layer in the filter element needs to be replaced, or a filter layer needs to be replaced if it is damaged by external force or other factors. However, most filter layers in the filter element are integrated as one piece. Once damaged or reaching the end of its service life, the entire filter element needs to be replaced. However, some filter layers are not actually damaged and can still be used. Replacing the whole filter element would increase the cost too much, and it is not possible to replace a single filter layer.

[0004] Secondly, once the filter layers are separated, their sealing performance will decrease. Furthermore, if the filter layers need to be replaced independently, the sealing performance of the relevant filter layers can easily decrease, causing fluid to leak easily in the gaps between the filter layers. Therefore, additional sealing treatment is required. Utility Model Content

[0005] The purpose of this utility model is to provide a filter element with replaceable filter layers. By setting up filter channels, filter components, cover plates, sealing gaskets, and rubber gaskets, it solves the problems that the individual filter layers in the filter element cannot be replaced independently and that the individual filter layers in the filter element have insufficient sealing.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a filter element with a replaceable filter layer, including a filter channel, an end plate, a cover plate, and a filter assembly. The filter channel is provided with a U-shaped groove, and the U-shaped groove is provided with equally spaced limiting grooves. Each limiting groove is provided with a filter assembly. Both ends of the filter channel are fixed with end plates, and the filter channel and end plates are covered with a cover plate, and a sealing gasket is fixed on the bottom surface of the cover plate.

[0008] The filter assembly includes a filter frame and a mounting ring fixed inside the filter frame. U-shaped rubber pads are fixed on both sides and the bottom surface of the filter frame. A cavity is provided inside the mounting ring, and the cavity is filled with filter media. A grid mesh is provided on both ends of the filter media.

[0009] Furthermore, the end plate has an opening, and the U-shaped groove in the filter channel extends through the top of the filter channel; both the filter channel and the upper surface of the end plate are fixed with equally spaced studs, and the upper end of the studs passes through the sealing gasket and the cover plate and is screwed with a nut.

[0010] Furthermore, the bottom surface of the sealing gasket contacts the filter frame, filter channel, end plate, and upper surface of the rubber gasket.

[0011] Furthermore, each of the grid meshes is fixed with a ring frame, and bolts arranged in a circular array are inserted inside the ring frame, with the tail end of the bolts screwed into the mounting ring.

[0012] Furthermore, the opposing sides of the two ring frames are respectively flush with the end face of the filter frame that is close to them.

[0013] Furthermore, the outer edge of the filter frame and the rubber pad are both located within the limiting groove; symmetrically distributed reinforcing ribs are fixed to the upper part of both ends of the filter frame, and one right-angled side of the reinforcing rib is fixed to the filter frame, while the other right-angled side abuts against the inner wall of the filter channel.

[0014] Furthermore, the cross-sectional dimensions of the limiting groove are larger than those of the U-shaped groove.

[0015] This utility model has the following beneficial effects:

[0016] This invention solves the problem of the inability to independently replace individual filter layers in a filter element by setting up filter channels and filter components. Multiple equidistant limiting grooves are set within the filter channels, each capable of housing a filter component. Each filter component can be independently replaced and disassembled. After removing the filter frame from the filter component, the bolts can be removed, and the grid and ring frame can be disassembled. At this point, the filter media inside the ring, or other required filter media, can be replaced. Then, the ring frame and grid can be reinstalled. Both grids can be disassembled independently, allowing for replacement of any one grid to replace the filter media. Furthermore, the grid design effectively increases the structural strength of the filter media, preventing deformation during filtration and extending its service life. If the filter media in a particular filter component is damaged, the corresponding component can be replaced.

[0017] This invention solves the problem of insufficient sealing of each filter layer in the filter element by setting a cover plate, sealing gasket, and rubber gasket. After the filter material is replaced, the filter frame is inserted into the limiting groove. At this time, the rubber gasket outside the filter frame is tightly attached to the inner wall of the limiting groove, making it difficult for fluid to pass through the gap between the filter frame and the filter channel during subsequent filtration operations. Finally, the cover plate is installed. The sealing gasket at the bottom of the cover plate contacts the filter frame, filter channel, end plate, and the upper end of the rubber gasket, and completes the fixation of the cover plate, which both tightens the filter assembly and maintains the seal. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A perspective view of a filter cartridge with replaceable filter layers;

[0020] Figure 2 This is a structural diagram showing the structure after removing the cover plate and one end plate.

[0021] Figure 3 This is a structural diagram of the filter channel;

[0022] Figure 4 This is a structural diagram of the filter component;

[0023] Figure 5 This is a disassembled diagram of the filter assembly;

[0024] Figure 6 This is a structural diagram of the filter frame;

[0025] Figure 7 This is a structural diagram of the end plate;

[0026] Figure 8 This is a bottom view of the cover plate.

[0027] Figure label:

[0028] 1. Filter channel; 101. Stud; 1011. Nut; 102. U-shaped channel; 103. Limiting groove; 2. End plate; 201. Pipe opening; 3. Cover plate; 301. Sealing gasket; 4. Filter assembly; 401. Filter frame; 402. Rubber gasket; 403. Grille; 404. Ring frame; 4041. Bolt; 405. Reinforcing rib; 406. Mounting ring; 4061. Cavity; 407. Filter media. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Please see Figure 1-8As shown, this utility model is a filter element with a replaceable filter layer, including a filter channel 1, an end plate 2, a cover plate 3, and a filter assembly 4. A U-shaped groove 102 is provided in the filter channel 1, and equal-spaced limiting grooves 103 are opened in the U-shaped groove 102. A filter assembly 4 is provided in each limiting groove 103. The end plates 2 are fixed at both ends of the filter channel 1. The cover plate 3 is provided on the top of the filter channel 1 and the end plates 2, and a sealing gasket 301 is fixed on the bottom surface of the cover plate 3.

[0031] The filter channel 1 serves as the main filter channel, with a U-shaped groove 102 inside. Fluid passes through the U-shaped groove 102 and is inserted into the limiting groove 103. The filter assembly 4 serves as the main filter carrier, with filter media 407 of different pore sizes installed inside to achieve layer-by-layer filtration. After the filter assembly 4 is installed, the cover plate 3 is placed over the filter channel 1 and the end plate 2 to complete the installation, and the sealing gasket 301 is used to increase the sealing performance.

[0032] The filter assembly 4 includes a filter frame 401 and a mounting ring 406 fixed inside the filter frame 401. U-shaped rubber pads 402 are fixed on both sides and the bottom surface of the filter frame 401. A cavity 4061 is provided inside the mounting ring 406, and the cavity 4061 is filled with filter media 407. A grid mesh 403 is provided on both ends of the filter media 407.

[0033] A rubber pad 402 is provided on the outside of the filter frame 401. When installing the filter assembly 4, the filter frame 401 and the rubber pad 402 are inserted into the limiting groove 103 at the same time to limit the position of the filter frame 401 and complete the installation. At the same time, the rubber pad 402 on the outside of the filter frame 401 is in close contact with the inner wall of the limiting groove 103, so that in subsequent filtration operations, it is difficult for the fluid to pass through the gap between the filter frame 401 and the filter channel 1. The filter material 407 in the installation ring 406 is used to filter the fluid. The installation grid 403 is used to strengthen the structure and reduce the deformation of the filter material 407.

[0034] The end plate 2 has a pipe opening 201, and the U-shaped groove 102 in the filter channel 1 passes through the top of the filter channel 1; both the filter channel 1 and the upper end face of the end plate 2 are fixed with equally spaced studs 101, and the upper end of the studs 101 passes through the sealing gasket 301 and the cover plate 3 and is screwed with a nut 1011.

[0035] The pipe openings 201 in the two end plates 2 are respectively connected to the inlet and outlet to introduce unfiltered fluid and discharge filtered fluid; when installing the cover plate 3, the cover plate 3 is placed on top of the filter channel 1 and the end plate 2, and the stud 101 passes through the cover plate 3, and then the nut 1011 is rotated to lock it, thus completing the installation.

[0036] The bottom surface of the sealing gasket 301 contacts the filter frame 401, the filter channel 1, the end plate 2, and the upper surface of the rubber gasket 402; the sealing process is completed by using the sealing gasket 301.

[0037] Each grid 403 is fixed with a ring frame 404, and bolts 4041 arranged in a ring array are inserted in the ring frame 404, and the tail end of the bolts 4041 is screwed into the mounting ring 406.

[0038] The grid mesh 403 is integrated with the outer mounting ring 406 and frame 404. The filter media 407 is placed inside the mounting ring 406. First, one ring frame 404 and grid mesh 403 are installed with the mounting ring 406. After placing the filter media 407, another grid mesh 403 and ring frame 404 are installed. The ring frame 404 is pressed tightly against the mounting ring 406, and bolts 4041 are screwed into the mounting ring 406 to complete the installation of the ring frame 404 and the mounting ring 406. At this time, the grid mesh 403 is pressed tightly against the filter media 407 to prevent the filter media 407 from deforming.

[0039] The opposite sides of the two ring frames 404 are flush with the end face of the filter frame 401 that is close to them.

[0040] The outer edge of the filter frame 401 and the rubber pad 402 are both located in the limiting groove 103; symmetrically distributed reinforcing ribs 405 are fixed on the upper part of both ends of the filter frame 401, and one right-angle side of the reinforcing rib 405 is fixed to the filter frame 401, and the other right-angle side abuts against the inner wall of the filter channel 1.

[0041] The reinforcing rib 405 is used to increase the structural strength of the filter frame 401. After abutting the edge of the filter channel 1, it can further reduce the degree of deformation of the filter frame 401.

[0042] The cross-sectional dimensions of the limiting groove 103 are larger than those of the U-shaped groove 102.

[0043] The specific working principle of this utility model is as follows: First, install the filter assembly 4. First, install one ring frame 404 and the grid mesh 403 with the mounting ring 406. Place the filter media 407 into the cavity 4061 inside the mounting ring 406. Then, install another grid mesh 403 and the ring frame 404. Press the ring frame 404 tightly against the mounting ring 406 and screw the bolt 4041 into the mounting ring 406 to complete the installation of the ring frame 404 and the mounting ring 406. At this time, the grid mesh 403 is pressed tightly against the filter media 407, completing the installation of the filter media 407. This operation can also be used to replace a new filter media 407. Subsequently, insert the filter frame 401 and the rubber gasket 402 into the limiting groove 103 simultaneously to limit the position of the filter frame 401, completing the installation. Meanwhile, the rubber gasket 402 outside the filter frame 401 is tightly attached to the inner wall of the limiting groove 103, making it difficult for fluid to pass through the gap between the filter frame 401 and the filter channel 1 during subsequent filtration operations. Finally, the cover plate 3 is placed on top of the filter channel 1 and the end plate 2, and the stud 101 passes through the cover plate 3. Then, the nut 1011 is rotated to lock it, completing the installation. The sealing gasket 301 at the bottom of the cover plate 3 contacts the filter frame 401, the filter channel 1, the end plate 2, and the upper end of the rubber gasket 402, which both abuts against the filter assembly 4 and maintains the seal. During filtration, the pipe ports 201 in the two end plates 2 are connected to the inlet and outlet respectively. The inlet introduces unfiltered fluid, which is filtered by multiple filter assemblies 4 and then discharged through the outlet.

[0044] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A replaceable filter layer cartridge comprising a filter channel (1), an end plate (2), a cover plate (3) and a filter assembly (4), characterized in that: The filter channel (1) is provided with a U-shaped groove (102), and the U-shaped groove (102) is provided with equally spaced limiting grooves (103). Each limiting groove (103) is provided with a filter assembly (4). Both ends of the filter channel (1) are fixed with end plates (2). The filter channel (1) and the end plates (2) are covered with a cover plate (3), and a sealing gasket (301) is fixed on the bottom surface of the cover plate (3). The filter assembly (4) includes a filter frame (401) and a mounting ring (406) fixed inside the filter frame (401). U-shaped rubber pads (402) are fixed on both sides and the bottom surface of the filter frame (401). A cavity (4061) is provided inside the mounting ring (406), and the cavity (4061) is filled with filter material (407). A grid mesh (403) is provided on both ends of the filter material (407).

2. The replaceable filter-bed cartridge of claim 1, wherein: The end plate (2) has a pipe opening (201) and the U-shaped groove (102) in the filter channel (1) passes through the top of the filter channel (1); the upper surfaces of the filter channel (1) and the end plate (2) are fixed with studs (101) distributed at equal intervals, and the upper end of the studs (101) passes through the sealing gasket (301) and the cover plate (3) and is screwed with a nut (1011).

3. The filter element with a replaceable filter layer according to claim 1, characterized in that: The bottom surface of the sealing gasket (301) contacts the filter frame (401), the filter channel (1), the end plate (2), and the upper surface of the rubber gasket (402).

4. The filter element with replaceable filter layer according to claim 1, characterized in that: Each of the grid meshes (403) is fixed with a ring frame (404), and bolts (4041) arranged in a ring array are inserted in the ring frame (404), and the tail end of the bolts (4041) is screwed into the mounting ring (406).

5. A filter element with a replaceable filter layer according to claim 4, characterized in that: The opposite sides of the two ring frames (404) are flush with the end face of the filter frame (401) that is close to them.

6. A filter element with a replaceable filter layer according to claim 1, characterized in that: The outer edge of the filter frame (401) and the rubber pad (402) are both located in the limiting groove (103); the upper part of both ends of the filter frame (401) is fixed with symmetrically distributed reinforcing ribs (405), and one right-angle side of the reinforcing rib (405) is fixed to the filter frame (401), and the other right-angle side abuts against the inner wall of the filter channel (1).

7. A filter element with a replaceable filter layer according to claim 1, characterized in that: The cross-sectional dimensions of the limiting groove (103) are larger than those of the U-shaped groove (102).

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