Efficient graphene oil-gas separation filter element

By adopting an external and internal filter structure, combined with graphene composite filter material and exhaust chamber design, the problems of low gas flow efficiency and low filtration efficiency of the filter element are solved, achieving efficient oil-gas separation and extending service life.

CN224141743UActive Publication Date: 2026-04-21JIANGSU YINCHAO YUNFEI NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing filter elements have low gas flow efficiency and low filtration efficiency. Impurities adhere to them, affecting their dirt holding capacity and service life, and they require frequent cleaning.

Method used

It adopts an external and internal filter structure. The filter media cavity is filled with graphene composite filter media, and an exhaust chamber is set in the middle of the internal filter. With the help of gravity and airflow, the oil droplets settle and are quickly discharged through the oil outlet.

Benefits of technology

It improves gas flow efficiency and filtration efficiency, increases dirt holding capacity and service life, and achieves efficient oil and gas separation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The efficient graphene oil-gas separation filter element comprises a filter layer, a front cover and a rear cover, the filter layer is cylindrical, the front cover and the rear cover are arranged at the two ends of the filter layer respectively, the filter layer comprises an outer filter screen and an inner filter screen, a filter material cavity is formed between the outer filter screen and the inner filter screen, and a graphene composite material filter material is filled in the filter material cavity. The rear cover is provided with an exhaust port communicated with the exhaust cavity; according to the efficient graphene oil-gas separation filter element, the outer filter screen and the inner filter screen are adopted, and the filter material cavity between the outer filter screen and the inner filter screen is filled with the graphene composite material filter material, so that the gas flow is effectively shortened, the gas circulation efficiency is improved, and the graphene composite material filter material has a high specific surface area and an adjustable pore structure; in addition, the exhaust cavity is formed in the middle of the inner filter screen, oil drops captured and polymerized by graphene are settled to the front cover under the action of gravity and airflow, oil liquid can be rapidly discharged through the oil discharge outlet, the pollutant holding capacity is improved, and the service life is prolonged.
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Description

Technical Field

[0001] This utility model relates to graphene technology, specifically a high-efficiency graphene oil-gas separation filter element. Background Technology

[0002] In many industries, such as petrochemicals, metallurgy, aerospace electronics, power and pharmaceuticals, environmental protection and nuclear energy, natural gas, and fire-fighting equipment, a large amount of gases that need to be treated are generated. These gases contain oil mist, water droplets, dust, and other impurities, which may fail to meet environmental standards for emissions or affect downstream equipment and processes. Therefore, filter elements are needed in various industries to help ensure the smooth operation of industrial processes, improve product quality, strengthen environmental protection, and ensure personnel safety.

[0003] However, existing filter cartridges are generally made of metal mesh enclosed in a cylindrical shape and filled with activated carbon inside. The gas flow efficiency is poor, resulting in low filtration efficiency. Moreover, impurities will adhere to the activated carbon, affecting the dirt holding capacity and service life. The activated carbon needs to be removed frequently for cleaning and regeneration, which is time-consuming and labor-intensive. Utility Model Content

[0004] To address the shortcomings of the existing technology, this invention provides a high-efficiency graphene oil-gas separation filter element, which can improve gas flow efficiency, increase filter element filtration efficiency, and enhance dirt holding capacity and service life.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a high-efficiency graphene oil-gas separation filter element, comprising a filter layer, a front cover, and a rear cover. The filter layer is cylindrical, and the front cover and rear cover are respectively disposed at both ends of the filter layer. The filter layer includes an outer filter screen and an inner filter screen. The outer filter screen is disposed outside the inner filter screen. A filter material cavity is provided between the outer filter screen and the inner filter screen. The filter material cavity is filled with graphene composite filter material. The front cover, rear cover, and inner filter screen form an exhaust cavity. The rear cover is provided with an exhaust port communicating with the exhaust cavity.

[0006] Preferably, the front cover has an oil drain port in the middle.

[0007] Preferably, the outer filter screen has connecting rings at both ends.

[0008] Preferably, the inner side of the connecting ring is provided with a sealing block and a gasket. The sealing block is located between the end of the inner filter screen and the front cover, and the gasket is located between the rear cover and the end of the inner filter screen. The sealing block and the gasket respectively seal both ends of the filter media cavity.

[0009] Preferably, an O-ring is provided between the sealing block and the inner filter screen.

[0010] In summary, this utility model achieves the following technical effects:

[0011] This utility model discloses a high-efficiency graphene oil-gas separator filter element, which uses an outer filter screen and an inner filter screen. The filter material cavity between the outer and inner filter screens is filled with graphene composite filter material, which effectively shortens the gas flow and improves the gas flow efficiency. Moreover, the graphene composite filter material has a high specific surface area and an adjustable pore structure, which improves the filtration efficiency. In addition, an exhaust chamber is set in the middle of the inner filter screen. With the help of gravity and airflow, the oil droplets captured and polymerized by graphene settle to the front cover and can be quickly discharged through the oil drain port, which improves the dirt holding capacity and service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the high-efficiency graphene oil-gas separation filter element of this utility model;

[0013] The following are the markings on the attached diagrams in the instruction manual: 1. Outer filter screen; 2. Connecting ring; 3. Inner filter screen; 4. Filter media cavity; 5. Sealing block; 6. Front cover; 7. Gasket; 8. Rear cover. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings.

[0015] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] Example 1:

[0021] like Figure 1 As shown, a high-efficiency graphene oil-gas separation filter element includes a filter layer, a front cover 6, and a rear cover 8. The filter layer is cylindrical, and the front cover 6 and the rear cover 8 are respectively disposed at both ends of the filter layer. The filter layer includes an outer filter screen 1 and an inner filter screen 3. The outer filter screen 1 is disposed outside the inner filter screen 3. A filter material cavity 4 is provided between the outer filter screen 1 and the inner filter screen 3. The filter material cavity 4 is filled with graphene composite filter material. The front cover 6, the rear cover 8, and the inner filter screen 3 form an exhaust cavity. The rear cover 8 is provided with an exhaust port communicating with the exhaust cavity.

[0022] In actual use, the front cover 6 is located at the bottom and the rear cover 8 is located at the top, that is, the oil drain is located at the bottom and the exhaust port is located at the top. The airflow enters from the outside of the outer filter screen 1, removes solid particles, and enters the filter material cavity 4. The oil mist, water droplets and harmful gases are adsorbed by the graphene filter dust. After that, the airflow passes through the inner filter screen 3 for filtration again and enters the exhaust cavity and is discharged through the exhaust port. The oil mist and water droplets are captured and enriched by the graphene filter dust to form droplets. With the help of gravity and airflow guidance, the droplets gradually detach from the graphene filter dust and settle and accumulate on the front cover 6, and are periodically sucked out through the oil drain port.

[0023] This utility model discloses a high-efficiency graphene oil-gas separator filter element, which uses an outer filter screen 1 and an inner filter screen 3. The filter material cavity 4 between the outer filter screen 1 and the inner filter screen 3 is filled with graphene composite filter material, which effectively shortens the gas flow and improves the gas flow efficiency. Moreover, the graphene composite filter material has a high specific surface area and an adjustable pore structure, which improves the filtration efficiency. In addition, an exhaust chamber is set in the middle of the inner filter screen 3. With the help of gravity and airflow, the oil droplets captured and polymerized by graphene settle to the front cover 6 and can be quickly discharged through the oil outlet, realizing efficient separation of oil and gas. At the same time, it ensures the purity of the air discharged from the compressor, improves the dirt holding capacity and service life.

[0024] The front cover 6 has an oil drain port in the middle.

[0025] Both ends of the outer filter screen 1 are provided with connecting rings 2; the setting of connecting rings 2 can strengthen both ends of the outer filter screen 1 and facilitate the setting of connecting structures, such as threads or buckles, at the ends of the outer filter screen 1 so as to fix the front cover 6 or the rear cover 8 to the outer filter screen 1.

[0026] The inner side of the connecting ring 2 is provided with a sealing block 5 and a gasket 7. The sealing block 5 is located between the end of the inner filter screen 3 and the front cover 6, and the gasket 7 is located between the rear cover 8 and the end of the inner filter screen 3. The sealing block 5 and the gasket 7 respectively seal both ends of the filter material cavity 4. The sealing block 5 and the gasket 7 can seal both ends of the filter material cavity 4 to prevent the graphene composite filter material from leaking out, and can also support the outer filter screen 1 and the inner filter screen 3 to prevent the filter layer from deforming.

[0027] An O-ring is provided between the sealing block 5 and the inner filter screen 3; the O-ring is provided to increase the gap between the sealing block 5 and the inner filter screen 3, and to prevent the graphene composite filter material from leaking out as the oil settles.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A high efficiency graphene oil and gas separation cartridge, characterized in that, The device includes a filter layer, a front cover, and a rear cover. The filter layer is cylindrical, and the front and rear covers are respectively located at both ends of the filter layer. The filter layer includes an outer filter screen and an inner filter screen. The outer filter screen is located outside the inner filter screen, and a filter media cavity is provided between the outer and inner filter screens. The filter media cavity is filled with graphene composite filter media. The front cover, rear cover, and inner filter screen form an exhaust cavity. The rear cover has an exhaust port communicating with the exhaust cavity. Connecting rings are provided at both ends of the outer filter screen. A sealing block and a gasket are provided inside the connecting rings. The sealing block is located between the end of the inner filter screen and the front cover, and the gasket is located between the rear cover and the end of the inner filter screen. The sealing block and the gasket respectively seal both ends of the filter media cavity. An oil drain port is provided in the middle of the front cover.

2. The high-efficiency graphene oil-gas separation filter element according to claim 1, characterized in that, An O-ring is provided between the sealing block and the inner filter screen.