Efficient multi-layer composite oil filter

Abstract

The utility model provides a high-efficiency multi-layer composite oil filter, which belongs to the technical field of oil filters and comprises a filter body, a filter element and a filter element, a filter element; the shell is positioned on the surface of the filter element; the bottom block is fixedly connected to the inner wall of the shell, and the filter element is located on the upper side of the bottom block; the filter screen is fixedly connected into the filter element; the filter layer is arranged in the filter element; the coarse filtration layer, the medium-efficiency adsorption layer and the fine filtration layer are sequentially arranged, so that impurities with different particle sizes in the oil are gradually intercepted, and the filtration performance is remarkably improved. In addition, due to the arrangement of a sealing structure, short circuit between the filtering layers is effectively prevented, it is guaranteed that each layer can fully play the filtering role, and the filter element is more convenient to maintain and replace. By means of the design, the downtime of the oil filter is shortened, the working efficiency is improved, and meanwhile the long-term operation cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of oil filter technology, specifically relating to a high-efficiency multilayer composite oil filter. Background Technology

[0002] In modern industry, machinery manufacturing, hydraulic systems, and various applications requiring fluid media such as lubricating oil and coolant, filters are key devices to ensure these liquids remain clean and free of impurities. With technological advancements and increasingly stringent environmental regulations, higher performance requirements are being placed on filters. They must not only remove larger particles but also effectively adsorb fine particles, moisture, and chemical contaminants to protect equipment from wear, extend service life, and ensure stable system operation.

[0003] The patent application number "CN217950492U" describes an oil filter, including an oil filter element. The outer surface of the oil filter element is covered with filter paper, and the inner wall of the filter paper is inlaid with several identical magnetic strips. Several identical wire meshes are installed on the outer surface of the filter paper. Two cover plates are installed on the outer surface of the filter paper. Two sets of magnetic rods are placed on the top of one of the cover plates, and filter cloth is installed on the bottom of one of the cover plates. In this invention, the magnetic strips can adsorb magnetic substances during normal oil filtration, preventing the filter paper and oil filter element from failing to filter magnetic impurities, which would then enter the lubrication system with the oil. This reduces the damage of magnetic impurities to components. The wire mesh works in conjunction with the magnetic strips to block magnetic impurities, adsorbing them onto the wire mesh for easy cleaning and preventing magnetic impurities from adhering to the magnetic strips and affecting their magnetism.

[0004] Traditional oil filters mainly rely on a single or simple two-layer filtration structure, which makes it difficult to meet the increasingly stringent requirements for filtration precision, especially in the filtration of fine particles at the micron level. They lack effective adsorption materials and cannot fully remove water, colloids and other dissolved contaminants from the oil. Leaks may occur during use, causing unfiltered liquid to mix in and affecting the filtration effect. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency multi-layer composite oil filter, which aims to solve the problems of traditional oil filters in the prior art that mainly rely on a single or simple two-layer filtration structure, making it difficult to meet the increasingly stringent filtration accuracy requirements, especially in the filtration of fine particles at the micron level. They also lack effective adsorption materials, cannot fully remove water, colloids and other dissolved contaminants from the oil, and may leak during use, causing unfiltered liquid to mix in and affecting the filtration effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-efficiency multilayer composite oil filter, comprising:

[0008] Filter element;

[0009] The housing is located on the surface of the filter element;

[0010] A bottom block, which is fixedly connected to the inner wall of the outer shell, and the filter element is located on the upper side of the bottom block;

[0011] A filter screen, which is fixedly connected inside the filter element;

[0012] A filter layer is disposed inside the filter element;

[0013] The filter layer consists of a coarse filter layer, a medium-efficiency adsorption layer, and a fine filter layer from the outside to the inside.

[0014] A sealed structure is located between the coarse filter layer, the medium-efficiency adsorption layer, and the fine filter layer.

[0015] As a preferred embodiment of this utility model, the inner wall of the outer shell is provided with a threaded groove, and a sealing ring is provided inside the outer shell.

[0016] In a preferred embodiment of this utility model, the pore size of the coarse filter layer is greater than or equal to 100 micrometers, and the filtration accuracy of the fine filter layer is less than or equal to 1 micrometer.

[0017] In a preferred embodiment of this invention, the medium-efficiency adsorption layer is composed of a mixture of glass fiber, polyester fiber and activated carbon.

[0018] As a preferred embodiment of this invention, the outer shell surface is provided with an anti-corrosion coating to extend its service life.

[0019] As a preferred embodiment of this invention, the sealing structure is an elastic rubber ring, ensuring that the liquid between each layer must pass through filtration.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. In this design, the sequential arrangement of the coarse filter layer, medium-efficiency adsorption layer, and fine filter layer ensures that impurities of different particle sizes in the oil are progressively intercepted, thereby significantly improving filtration performance. Furthermore, the sealed structure not only effectively prevents short circuits between filter layers, ensuring that each layer can fully perform its filtration function, but also makes filter element maintenance and replacement more convenient. This design reduces oil filter downtime, improves working efficiency, and lowers long-term operating costs.

[0022] 2. In this solution, the high-efficiency multi-layer composite oil filter, through precise sealing design, ensures the purity of the oil during the filtration process, effectively reducing the failure rate of mechanical equipment caused by oil contamination. This not only improves the operational stability of the equipment but also enhances operational safety. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a perspective view of the present utility model;

[0025] Figure 2 This is a sectional perspective view of the present invention;

[0026] Figure 3 This utility model Figure 2 A magnified view of a portion of point A in the middle.

[0027] In the diagram: 1. Outer shell; 2. Filter element; 3. Threaded groove; 4. Sealing ring; 5. Filter layer; 501. Coarse filter layer; 502. Medium-efficiency adsorption layer; 503. Fine filter layer; 6. Filter screen; 7. Bottom block; 8. Sealing structure. Detailed Implementation

[0028] 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.

[0029] Example 1

[0030] Please see Figures 1-3 The present invention provides the following technical solution:

[0031] A high-efficiency multilayer composite oil filter, comprising:

[0032] Filter element 2;

[0033] Outer shell 1, located on the surface of filter element 2;

[0034] The bottom block 7 is fixedly connected to the inner wall of the outer shell 1, and the filter element 2 is located on the upper side of the bottom block 7;

[0035] Filter screen 6 is fixedly connected inside filter element 2;

[0036] Filter layer 5 is disposed inside filter element 2;

[0037] The filter layer 5 is provided with a coarse filter layer 501, a medium-efficiency adsorption layer 502 and a fine filter layer 503 from the outside to the inside.

[0038] The sealing structure 8 is located between the coarse filter layer 501, the medium-efficiency adsorption layer 502, and the fine filter layer 503.

[0039] In a specific embodiment of this utility model, the filter element 2 is made of polypropylene material, which has good chemical stability and mechanical strength and can withstand the pressure during operation. The outer shell 1 is made of stainless steel material, which has anti-corrosion properties and is located on the surface of the filter element 2 to protect the filter element and provide overall structural strength for the oil filter. The base block 7 is made of aluminum alloy material and is fixedly connected to the inner wall of the outer shell 1 to support the filter element 2 and maintain its fixed position within the outer shell 1. It also allows for the individual removal of the filter element 2 during disassembly. The filter screen 6 is made of stainless steel and is fixedly connected to the inner side of the filter element 2. To initially intercept larger impurity particles, filter layer 5 is located inside filter element 2 and consists of three layers from the outside to the inside: a coarse filter layer 501, used to intercept larger solid particles in the oil; a medium-efficiency adsorption layer 502, used to adsorb smaller particles and some organic matter in the oil; and a fine filter layer 503, made of ultra-fine glass fiber material, used to further filter tiny particles in the oil, ensuring the cleanliness of the filtered oil. A sealing structure 8 ensures a good seal between each filter layer 5, preventing unfiltered oil from passing directly through. This effectively filters impurities in the oil, improves the cleanliness of the oil, and ensures the normal operation of the mechanical equipment.

[0040] Please refer to the details. Figures 1-3 The inner wall of the outer casing 1 is provided with a threaded groove 3, and a sealing ring 4 is provided inside the outer casing 1.

[0041] In this embodiment: the threaded groove 3 enhances the sealing performance and structural stability of the housing 1, and the sealing ring 4 is located between the inner wall of the housing 1 and the filter element 2 to further ensure the sealing performance of the oil filter during the filtration process and prevent oil leakage.

[0042] Please refer to the details. Figures 1-3 The coarse filter layer 501 has a pore size greater than or equal to 100 micrometers, and the fine filter layer 503 has a filtration accuracy less than or equal to 1 micrometer.

[0043] In this embodiment: the coarse filter layer 501 has a pore size of 100 micrometers or more and is used to initially filter larger particles of impurities, protect the subsequent filter layer 5, and extend the service life of the oil filter. The fine filter layer 503 has a filtration accuracy of 1 micrometer or less and is used to finally filter the tiny particles in the oil to ensure that the cleanliness of the oil reaches a high standard.

[0044] Please refer to the details. Figures 1-3The medium-efficiency adsorption layer 502 is composed of a mixture of glass fiber, polyester fiber and activated carbon.

[0045] In this embodiment: glass fiber and polyester fiber have good filtration performance and can capture larger particles of impurities in the oil. Activated carbon has a strong adsorption capacity and can adsorb pigments, odors and some chemical substances in the oil, further improving the cleanliness of the oil.

[0046] Please refer to the details. Figures 1-3 The outer casing 1 has an anti-corrosion coating to extend its service life.

[0047] In this embodiment, the epoxy resin coating has good chemical stability and weather resistance.

[0048] Please refer to the details. Figures 1-3 The sealing structure 8 is an elastic rubber ring, which ensures that the liquid between each layer must pass through the filter.

[0049] In this embodiment, the sealing structure 8 uses an elastic rubber ring. This material has good elasticity and oil resistance, and can maintain a stable sealing effect during the operation of the oil filter.

[0050] The working principle and usage process of this utility model are as follows: Fix the filter screen 6 inside the filter element 2, ensuring that the filter screen 6 is flat and undamaged. Place the filter layer 5 inside the filter element 2 in the order of coarse filter layer 501, medium-efficiency adsorption layer 502 and fine filter layer 503, and place a sealing structure 8 between each layer. Install the filter element 2 containing the filter layer 5 on the upper side of the bottom block 7, and ensure the seal between the filter element 2 and the outer shell 1. Close the inlet and outlet valves of the outer shell 1, connect the oil circuit, turn on the oil pump, and start the filtration operation.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency multi-layer composite oil filter, characterized in that, include: Filter element (2); The outer casing (1) is located on the surface of the filter element (2); The bottom block (7) is fixedly connected to the inner wall of the outer shell (1), and the filter element (2) is located on the upper side of the bottom block (7); Filter screen (6), which is fixedly connected inside filter element (2); Filter layer (5), the filter layer (5) is disposed inside the filter element (2); The filter layer (5) consists of a coarse filter layer (501), a medium-efficiency adsorption layer (502), and a fine filter layer (503) from the outside to the inside. A sealing structure (8) is located between the coarse filter layer (501), the medium-efficiency adsorption layer (502), and the fine filter layer (503).

2. The high-efficiency multilayer composite oil filter according to claim 1, characterized in that: The inner wall of the outer shell (1) is provided with a threaded groove (3), and a sealing ring (4) is provided inside the outer shell (1).

3. The high-efficiency multilayer composite oil filter according to claim 2, characterized in that: The coarse filter layer (501) has a pore size greater than or equal to 100 micrometers, and the fine filter layer (503) has a filtration accuracy less than or equal to 1 micrometer.

4. The high-efficiency multilayer composite oil filter according to claim 3, characterized in that: The medium-efficiency adsorption layer (502) is composed of a mixture of glass fiber, polyester fiber and activated carbon.

5. A high-efficiency multilayer composite oil filter according to claim 4, characterized in that: The outer casing (1) has an anti-corrosion coating on its surface to extend its service life.

6. The high-efficiency multilayer composite oil filter according to claim 5, characterized in that: The sealing structure (8) is an elastic rubber ring, which ensures that the liquid between each layer must pass through the filter.

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