Magnetic filter with composite filtering structure

Abstract

The utility model relates to the technical field of fluid filtration, and discloses a magnetic filter with a composite filter structure, which comprises a base, a filter cartridge arranged above the base, a feed port arranged on one side of the filter cartridge, and a discharge port arranged on the other side of the filter cartridge; a filter screen and filter paper are arranged in the filter cartridge, the filter screen and the filter paper are clamped in clamping grooves formed in the bottom of the inner wall of the filter cartridge, and a magnetic rod is arranged in the filter cartridge; and a filter element is arranged in the feeding hole. The filter screen, the filter paper and the feed port filter element form a multi-stage filter system, the star-shaped structure of the filter paper increases the overflowing area, meanwhile, the magnetic rod adsorbs ferromagnetic substances, impurities with different properties in fluid are efficiently removed, the fixing disc, the protection ring and the sealing gasket ensure that the device is sealed, the adsorbed impurities are convenient to detach, clean and clean, and the filtering effect is good. And the filter has long-period stable operation capability while maintaining the adsorption rate of high-iron magnetic impurities.

Description

Technical Field

[0001] This utility model relates to the field of fluid filtration technology, specifically to a magnetic filter with a composite filtration structure. Background Technology

[0002] Magnetic filters, as fluid purification devices that use magnetic force to separate impurities, are based on the physical property that ferromagnetic materials (such as iron, nickel, cobalt and their alloy particles) are adsorbed in a magnetic field. They are commonly used in hydraulic systems of engineering machinery (excavators, cranes), machine tools (machining centers, injection molding machines), ship deck machinery, as well as in metal processing and cutting fluid treatment.

[0003] A search revealed that existing magnetic filters (application number: CN201922090867.1) "include a housing, a first pipe, a second pipe, a magnetic rod, and a filter screen, wherein both the first and second pipes are connected to the housing, and the magnetic rod and filter screen are both disposed within the housing." This utility model can effectively filter iron and other impurities from fluids such as lubricating oil, improving the filtration quality and efficiency of marine diesel engine lubricating oil, and its structure is simple and ingenious.

[0004] However, while existing technologies are simple, practical, and easy to promote, they still have some shortcomings: the filtering effect is generally poor. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a composite filtration structure magnetic filter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a composite filtration structure magnetic filter, comprising: a base, a filter cylinder disposed above the base, an inlet disposed on one side of the filter cylinder, and an outlet disposed on the other side of the filter cylinder; a filter screen and filter paper disposed inside the filter cylinder, the filter screen and filter paper being engaged in a slot opened at the bottom of the inner wall of the filter cylinder, and a magnetic rod disposed inside the filter cylinder; and a filter element disposed inside the inlet.

[0007] As a further description of the above technical solution:

[0008] The filter paper is located inside the filter screen and is folded into a star shape to increase the flow area.

[0009] As a further description of the above technical solution:

[0010] The filter cartridge is equipped with a fixing plate at the top, and multiple sets of protective sleeves are installed below the fixing plate.

[0011] As a further description of the above technical solution:

[0012] The top of the filter cartridge is hinged with a set of protective rings, which are symmetrically arranged. Bolts pass through one end of the protective rings to fix the filter cartridge and the fixing plate.

[0013] As a further description of the above technical solution:

[0014] A mounting plate is provided above the fixing plate. Multiple sets of magnetic rods are installed on the mounting plate. The magnetic rods are inserted into the corresponding protective sleeves to attract ferromagnetic impurities. A handle is provided on the mounting plate.

[0015] As a further description of the above technical solution:

[0016] Flanges are provided on the inlet and outlet for installing external fluid interfaces.

[0017] As a further description of the above technical solution:

[0018] A sealing gasket is provided at the top of the inner wall of the filter cartridge.

[0019] This utility model has the following beneficial effects:

[0020] 1. A multi-stage filtration system is formed by filter screen, filter paper and feed inlet filter element. The star-shaped structure of filter paper increases the flow area and can intercept particulate impurities. At the same time, magnetic rods adsorb ferromagnetic substances to achieve efficient removal of impurities of different properties in the fluid.

[0021] 2. The structural design ensures filtration stability and convenience. The fixed plate, protective ring and sealing gasket ensure the device is sealed. The flange enables standardized installation. The handle facilitates disassembly and cleaning of adsorbed impurities, enabling the filter to maintain the adsorption rate of high-iron magnetic impurities while having the ability to operate stably for a long period of time. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a composite filtration structure magnetic filter proposed in this utility model;

[0023] Figure 2 This is a schematic diagram showing the positions of the inlet and outlet of a composite filtration structure magnetic filter proposed in this utility model.

[0024] Figure 3 This is an internal cross-sectional view of the filter cartridge of a composite filtration structure magnetic filter proposed in this utility model;

[0025] Figure 4 This is a schematic diagram showing the positions of the filter screen and filter paper in a composite filtration structure magnetic filter proposed in this utility model;

[0026] Figure 5 This is a schematic diagram showing the assembly plate and fixing plate of a composite filtration structure magnetic filter proposed in this utility model.

[0027] Legend:

[0028] 1. Base; 2. Filter cartridge; 3. Inlet; 4. Outlet; 5. Flange; 6. Protective ring; 7. Handle; 8. Filter element; 9. Filter screen; 10. Filter paper; 11. Slot; 12. Mounting plate; 13. Magnetic rod; 14. Fixing plate; 15. Protective sleeve; 16. Sealing gasket. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1:

[0031] like Figures 1 to 5 As shown, this embodiment provides a composite filtration structure magnetic filter, including: a base 1, a filter cylinder 2 disposed above the base 1, a feed inlet 3 disposed on one side of the filter cylinder 2, and a discharge outlet 4 disposed on the other side of the filter cylinder 2; a filter screen 9 and a filter paper 10 are disposed inside the filter cylinder 2, the filter screen 9 and the filter paper 10 are snapped into a slot 11 opened at the bottom of the inner wall of the filter cylinder 2, and a magnetic rod 13 is disposed inside the filter cylinder 2; a filter element 8 is disposed inside the feed inlet 3.

[0032] Specifically, the filter cartridge 2 combines various filtration components to intercept and filter different impurities in the fluid.

[0033] In this embodiment, the filter element 8 is installed in the feed inlet 3 by a snap-fit, and is used for preliminary filtration of larger particulate impurities in the fluid.

[0034] It should be noted that filter screen 9 is made of woven metal wire, which has good corrosion resistance and mechanical strength, and is used to filter smaller particulate impurities in fluids.

[0035] Specifically, the filter paper 10 is located inside the filter screen 9, and the filter paper 10 is folded into a star shape to increase the flow area.

[0036] In this embodiment, folding the filter paper into a star shape can increase the flow area. The star-shaped structure can improve the fluid flow efficiency and reduce the filtration resistance while ensuring filtration accuracy. It is mainly used to filter out small non-ferromagnetic impurities in the liquid and further improve the filtration effect.

[0037] Specifically, a fixing plate 14 is provided on the top of the filter cartridge 2, and multiple sets of protective sleeves 15 are provided below the fixing plate 14.

[0038] As a preferred embodiment, multiple protective sleeves 15 are provided below the top fixing plate 14 of the filter cartridge 2 to protect the magnetic rod 13, prevent it from directly contacting the fluid and causing wear or magnetic attenuation, extend the service life of the magnetic rod 13, and facilitate disassembly or replacement.

[0039] Example 2:

[0040] Based on Example 1, in order to ensure the sealing and structural stability of the device, a symmetrical protective ring 6 is hinged to the top of the filter cartridge 2;

[0041] Specifically, a set of protective rings 6 are hinged to the top of the filter cartridge 2. The protective rings 6 are symmetrically arranged, and bolts pass through one end of the protective rings 6 to fix the filter cartridge 2 and the fixing plate 14.

[0042] It should be noted that the top of the filter cartridge 2 is hinged with a symmetrical protective ring 6, and bolts pass through one end of the protective ring 6 to fix the filter cartridge 2 and the fixed plate 14, forming a stable connection. The structure is simple and stable, ensuring the sealing and structural stability of the device and preventing external water vapor from entering and interfering with the filtration process.

[0043] Specifically, an installation plate 12 is provided above the fixed plate 14. Multiple sets of magnetic rods 13 are installed on the installation plate 12. The magnetic rods 13 are inserted into the corresponding protective sleeves 15 to adsorb ferromagnetic impurities. A handle 7 is provided on the installation plate 12.

[0044] In a preferred embodiment, the mounting plate 12 above the fixed plate 14 is equipped with multiple sets of magnetic rods 13, which are inserted into the protective sleeve 15 to attract ferromagnetic impurities in the fluid using magnetic force; the mounting plate 12 is provided with a handle 7 to facilitate disassembly of the mounting plate and regular cleaning of the attracted impurities.

[0045] Example 3:

[0046] Based on Example 2, in order to improve the versatility of the device, flanges 5 are provided on the inlet 3 and the outlet 4;

[0047] Specifically, flanges 5 are provided on the inlet 3 and outlet 4 for installing external fluid interfaces.

[0048] It should be noted that the flanges 5 of the inlet 3 and outlet 4 are used to connect to external fluid pipelines. The standardized interface facilitates docking with various fluid conveying systems and improves the versatility of the device.

[0049] Specifically, a sealing gasket 16 is provided on the top of the inner wall of the filter cartridge 2.

[0050] In this embodiment, the sealing gasket 16 at the top of the inner wall of the filter cartridge 2 further enhances the sealing performance of the device. Together with the fixing of the protective ring 6 and the bolts, it ensures the sealing performance during the filtration process and maintains a stable filtration effect.

[0051] In use, the operator inserts the filter screen 9 and filter paper 10 into the corresponding slots 11 at the bottom of the inner wall of the filter cartridge 2, then places the fixing plate 14 on the filter cartridge 2, and then rotates the protective ring 6 to make the protective ring 6 fit against the outer wall of the filter cartridge 2, thereby fixing the filter cartridge 2 and the fixing plate 14. At this time, the magnetic rod 13 is inserted into the corresponding protective sleeve 15. The flanges installed on the inlet 3 and outlet 4 facilitate the operator to connect to external equipment. After the fluid enters through the inlet 3, it undergoes primary filtration through the filter element 8, then magnetic adsorption by the magnetic rod 13 inside the filter cartridge 2, further filtration by the filter paper 10, and final filtration by the filter screen 9, achieving multi-stage filtration and effectively removing various impurities from the fluid.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic filter with a composite filtration structure, characterized in that: include: A base (1) is provided, and a filter cylinder (2) is provided on the top of the base (1). A feed inlet (3) is provided on one side of the filter cylinder (2), and a discharge outlet (4) is provided on the other side of the filter cylinder (2). A filter screen (9) and a filter paper (10) are provided inside the filter cylinder (2). The filter screen (9) and the filter paper (10) are snapped into a slot (11) opened at the bottom of the inner wall of the filter cylinder (2). A magnetic rod (13) is provided inside the filter cylinder (2). A filter element (8) is provided inside the feed inlet (3).

2. The magnetic filter with a composite filtration structure according to claim 1, characterized in that: The filter paper (10) is located inside the filter screen (9), and the filter paper (10) is folded into a star shape to increase the flow area.

3. A magnetic filter with a composite filtration structure according to claim 1, characterized in that: The filter cartridge (2) is provided with a fixing plate (14) at the top, and multiple sets of protective sleeves (15) are provided below the fixing plate (14).

4. A magnetic filter with a composite filtration structure according to claim 1, characterized in that: The top of the filter cartridge (2) is hinged with a set of protective rings (6), which are symmetrically arranged. Bolts pass through one end of the protective rings (6) to fix the filter cartridge (2) and the fixing plate (14).

5. A magnetic filter with a composite filtration structure according to claim 3, characterized in that: An installation plate (12) is provided above the fixed plate (14). Multiple sets of magnetic rods (13) are installed on the installation plate (12). The magnetic rods (13) are inserted into the corresponding protective sleeves (15) to adsorb ferromagnetic impurities. A handle (7) is provided on the installation plate (12).

6. A magnetic filter with a composite filtration structure according to claim 1, characterized in that: Flanges (5) are provided on the inlet (3) and outlet (4) for installing external fluid interfaces.

7. A magnetic filter with a composite filtration structure according to claim 1, characterized in that: A sealing gasket (16) is provided on the top of the inner wall of the filter cartridge (2).

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