Improved t-type filter cartridge

Abstract

This utility model discloses an improved T-type filter cartridge, relating to the field of filter technology in the petrochemical industry. It includes a filter cartridge body, a 40-mesh filter screen, a 50-mesh filter screen, a circular baffle, a connector, and a limiting device. The 40-mesh filter screen is attached to the inner wall of the filter cartridge body and the fixed side of the circular baffle. A circular baffle is located at the lower part of the filter cartridge inside the filter cartridge body, and a connector is movably connected to the middle of the circular baffle. A limiting device is installed on one side of the connector. A 50-mesh filter screen is located on the movable side of the circular baffle. This utility model eliminates the need to completely drain the oil between the inlet gate valve and the outlet check valve of the oil pump during filter cleaning. This simplifies the steps of removing the filter cartridge from the filter cartridge body and reduces the tediousness of cleaning the filter screen, while also avoiding oil loss during cleaning of traditional filters.

Description

Technical Field

[0001] This utility model relates to the field of filter technology in the petrochemical industry, specifically to an improved T-type filter cartridge. Background Technology

[0002] Flanged T-type filters are devices used in pipeline systems to filter impurities. Installed on the pipeline via a flange connection, they utilize the filter screen within the T-shaped structure to trap solid particles, debris, and other impurities in the fluid, ensuring the cleanliness of the media (such as water, oil, and gas) within the pipeline. This effectively prevents valves, pumps, instruments, and other equipment from being clogged or worn by impurities, improves system operational stability, reduces equipment maintenance costs, and is suitable for pipeline filtration scenarios in various industrial fields such as chemical, petroleum, and water treatment.

[0003] The existing Chinese utility model patent with publication number CN220159435U discloses a flange-type filter. This flange-type filter mainly includes a filter housing and a filter element. The shell wall of the filter housing forms a flow cavity that extends along a designed direction. A flow-guiding structure is provided at the inlet of the filter housing. At least a portion of the filter element is disposed within the flow cavity, and a gap exists between the filter element and the shell wall of the filter housing, serving as a fluid channel. The projected area of ​​the flow-guiding structure gradually increases along the designed direction to guide the fluid flowing into the flow cavity to the fluid channel. Through the embodiments provided in this application, compared to a cast Y-type structure filter of the same diameter, this application uses a flow cavity extending along the designed direction, eliminating the protruding portion of the Y-type structure, resulting in a more concentrated structure, reduced filter volume, saved installation space, and improved ease of installation and disassembly.

[0004] Currently, the T-type filter cartridges in use still have the following problems:

[0005] Currently, during the use of T-type filters, impurities filtered out can clog the inside of the filter, which not only reduces the filtration efficiency but also causes secondary pollution due to the accumulation of impurities inside. Furthermore, during cleaning, the oil between the inlet gate valve and the outlet check valve of the oil pump must be completely drained through the drain port before the flange cover can be removed to clean the filter cartridge. The operation is cumbersome, and the lack of an air intake channel in the pipeline during oil draining results in a slow discharge speed, a large workload, and increased work difficulty. Utility Model Content

[0006] The purpose of this invention is to provide an improved T-type filter cartridge to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] This utility model provides an improved T-type filter cartridge, comprising a filter cartridge body, a 40-mesh filter screen, a 50-mesh filter screen, a circular baffle, a connector, and a limiting device. The 40-mesh filter screens are distributed in a number on the inner wall of the filter cartridge body and on a fixed side of the circular baffle. A circular baffle is provided at the lower part of the filter cartridge body, and a connector is movably connected to the middle of the circular baffle. A limiting device is installed on one side of the connector. A 50-mesh filter screen is provided on the movable side of the circular baffle.

[0009] Preferably, the filter cartridge body is installed inside the T-type filter with its beveled opening facing downwards.

[0010] Preferably, the circular baffle consists of a fixed half and a movable half. The movable half of the circular baffle has a circular hole. The fixed half of the circular baffle is seamlessly connected to the inner wall of the filter cartridge. The other movable half of the baffle is connected to the fixed half through a connector located on the axis of symmetry of the circular baffle.

[0011] Preferably, the limiting device restricts the rotation angle of one side of the movable part of the circular baffle, so that the rotation angle does not exceed 90°.

[0012] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0013] 1. The T-type filter using the improved T-type filter cartridge can be installed on the process pipeline in an inverted "T" shape. A circular baffle is provided in the lower middle part of the filter cartridge. The circular baffle consists of two perforated semi-circular parts, one half of which is fixed and the other half is movable. When a certain amount of medium flows through the filter cartridge, the movable part of the baffle can rotate counterclockwise upwards to a position of no more than 90° due to fluid resistance. At this time, the baffle with one half open can accelerate the filtration speed of the medium to be filtered. When the flow rate of the medium to be filtered in the filter cartridge decreases to a certain level, the movable part of the circular baffle will automatically fall back to the horizontal position due to its own gravity, leaving impurities on the circular baffle. This design can prevent impurities from accumulating at the bottom of the T-type filter.

[0014] 2. When cleaning the filter, there is no need to drain the oil between the inlet gate valve and the outlet check valve of the oil pump. This not only simplifies the steps of removing the filter cartridge from inside the filter body and the tediousness of cleaning the filter screen, but also avoids the oil loss that occurs during the cleaning of traditional filters. Attached Figure Description

[0015] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0016] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the improved filter cartridge shell of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the front sectional view of the filter cartridge body of this utility model;

[0020] In the picture:

[0021] 1. Filter cartridge body; 2. 40-mesh filter screen; 3. 50-mesh filter screen; 4. Circular baffle; 5. Connecting parts; 6. Limiting device. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] Please see Figures 1-3 An improved T-type filter cartridge includes a filter cartridge body 1, a 40-mesh filter screen 2, a 50-mesh filter screen 3, a circular baffle 4, a connector 5, and a limiting device 6. The 40-mesh filter screens 2 are distributed in several quantities on the inner wall of the filter cartridge body 1 and on the fixed side of the circular baffle 4. The circular baffle 4 is provided in the lower part of the filter cartridge inside the filter cartridge body 1, and the connector 5 is movably connected to the middle of the circular baffle 4. The limiting device 6 is installed on one side of the connector 5. The 50-mesh filter screen 3 is provided on the movable side of the circular baffle 4.

[0024] The filter cartridge body 1 is installed inside the T-type filter with its inclined opening facing downwards.

[0025] For details, please refer to the following: Figure 2 As shown, the circular baffle 4 consists of a fixed half and a movable half. A circular hole is provided on the movable half of the circular baffle 4. The fixed half of the circular baffle is seamlessly connected to the inner wall of the filter cartridge. The other movable half of the baffle is connected to the fixed half via a connector 5 located on the axis of symmetry of the circular baffle 4. A limiting device 6 restricts the rotation angle of one side of the movable half of the circular baffle 4, ensuring that the rotation angle does not exceed 90°.

[0026] The improved T-type filter cartridge of this utility model is installed in a T-type filter with its inclined opening facing downwards in an inverted "T" shaped orientation. A circular baffle 4 is provided in the lower middle part of the filter cartridge body 1. The circular baffle 4 is movably connected by a connector 5. When the medium to be filtered enters the filter cartridge body 1, the fluid resistance can push half of the circular baffle 4 with a 50-mesh filter screen 3 upwards along the connector 5. The limiting device 6 allows the circular baffle 4 with the 50-mesh filter screen 3 to rotate counterclockwise by no more than 90° when the medium to be filtered is flowing, preventing it from falling back to the horizontal position naturally when the flow rate of the medium to be filtered is less than a certain value. The immovable part of the circular baffle 4 is seamlessly connected to the inner wall of the filter cartridge body 1. The medium to be filtered can enter the filter cartridge simultaneously through the holes on the circular baffle and the gap created by the upward opening of the movable part of the circular baffle, leaving impurities at the top of the circular baffle and completing the filtration. Finally, the filtered medium flows out towards the filter outlet through the reserved space between the filter cartridge body 1 and the inner cavity of the T-type filter.

[0027] The improved T-type filter cartridge of this utility model allows the T-type filter to be installed on the process pipeline in an inverted "T" shape. The upward-facing flange cover of the filter cartridge makes it easier to clean and maintain the T-type filter, avoiding oil loss during equipment cleaning, and reducing the risk of oil vapor evaporation and static electricity accumulation.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An improved T-type filter cartridge, comprising a cartridge body (1), a 40-mesh filter screen (2), a 50-mesh filter screen (3), a circular baffle (4), a connector (5), and a limiting device (6), characterized in that: The 40-mesh filter (2) is attached to the inner wall of the filter cylinder (1) and the fixed side of the circular baffle (4). The circular baffle (4) is provided in the lower part of the filter cylinder inside the filter cylinder (1), and a connector (5) is movably connected in the middle of the circular baffle (4). A limiting device (6) is installed on one side of the connector (5). A 50-mesh filter (3) is provided on the movable side of the circular baffle (4).

2. The improved T-shaped filter cartridge according to claim 1, characterized in that: The filter cartridge body (1) is installed in the T-type filter with its inclined opening facing downwards.

3. The improved T-shaped filter cartridge according to claim 1, wherein: The circular baffle (4) consists of a fixed half and a movable half. The movable half of the circular baffle (4) has a circular hole. The fixed half of the circular baffle (4) is seamlessly connected to the inner wall of the filter cartridge. The other movable half of the baffle is connected to the fixed half through a connector (5) located on the axis of symmetry of the circular baffle (4).

4. The improved T-shaped filter cartridge according to claim 1, wherein: The limiting device (6) restricts the rotation angle of the movable part of the circular baffle (4) to no more than 90°.

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