Air filter device for large power generating unit

Abstract

This utility model relates to the field of air filtration technology for high-horsepower generator sets, specifically to an air filtration device for high-horsepower generator sets, comprising an air filter body and an air filter bracket. The air filter body and the air filter bracket are detachably connected. The air filter bracket is mounted on the engine via a mounting bracket. The air filter body includes an upper end cover, a lower end cover, and an intermediate body. The intermediate body includes a central tube, an outer protective mesh, and filter media. The outer protective mesh and filter media are disposed outside the central tube. This invention solves the problems of traditional filter elements having an outer shell, which are not suitable for environments with compact layouts, and have high intake resistance, failing to meet the intake flow requirements of high-horsepower generator sets, and the inconvenience of disassembling and installing the air filter during maintenance.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology for high-horsepower generators, specifically to an air filtration device for high-horsepower generators. Background Technology

[0002] The working principle of a high-horsepower generator unit is the same as that of a diesel generator set. The internal combustion engine completes its energy conversion through four strokes (intake, compression, power, and exhaust). During the compression stroke, air is compressed to a high temperature and pressure of 500-700℃. After fuel injection, the combustion drives the piston, ultimately outputting mechanical energy through the crankshaft. The synchronous generator produces electricity. The crankshaft and generator rotor are coaxially connected. The rotor's excitation winding is energized to generate a rotating magnetic field, and the stator winding cuts the magnetic lines of force to generate three-phase alternating current. The voltage and frequency strictly correspond to the speed (e.g., 1500 r / min corresponds to a 50Hz four-pole generator). The air filter protects the core components of the engine. By filtering the air entering the cylinder, the air filter intercepts dust, sand, and other impurities (diameter > 0.1μm), preventing "cylinder scoring" caused by particle wear on the piston assembly, cylinder walls, and turbocharger, extending engine life, optimizing combustion efficiency, and ensuring complete fuel combustion, avoiding power loss, increased fuel consumption, and excessive emissions caused by insufficient air intake.

[0003] Traditional air filters currently have an external housing, which makes them unsuitable for environments with tight space. They also have high intake resistance, which cannot meet the intake flow requirements of high-horsepower generators. Furthermore, the air filter is inconvenient to disassemble and install during maintenance.

[0004] In summary, an air filtration device for high-horsepower generators is proposed to address the aforementioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide an air filtration device for high-horsepower generators to solve the problems of traditional filter elements having an external housing, which are not suitable for environments with compact layouts, and having high air intake resistance, which cannot meet the air intake flow requirements of high-horsepower generators, and the inconvenience of disassembling and installing air filters during maintenance.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An air filtration device for a high-horsepower generator includes an air filter body and an air filter bracket. The air filter and the air filter bracket are detachably connected. The air filter bracket is mounted on the engine via a mounting bracket. The air filter body includes an upper end cover, a lower end cover, and an intermediate body. The intermediate body includes an intermediate tube, an outer protective mesh, and filter media. The outer protective mesh and filter media are disposed outside the intermediate tube.

[0007] Furthermore, both the upper and lower end caps are made of rigid PU material, and the outer protective mesh, filter material, upper and lower end caps are an integral structure.

[0008] Further specifying, the air filter support includes an upper connector and a lower connector, the lower connector being located below the upper connector and connected to the upper connector, and the mounting bracket being welded to the lower connector and connected to the upper connector.

[0009] Further specified, the lower end cap is hollow in the middle, the upper part of the upper connecting pipe passes through the lower end cap and is located inside the intermediate body, and the lower end cap and the upper connecting pipe are connected and fixed by a ring hoop.

[0010] Further specifying, a limiting block is welded to the outer wall of the upper pipe, and the limiting block is located below the ring hoop. The advantages of this utility model over the current technology are as follows: 1. Weld a limiting block to the outer wall of the upper pipe. The limiting block is located below the ring and is used to limit the installation position of the air filter body.

[0011] 2. During maintenance, the replacement cycle is determined based on the air filter's dust holding capacity and differential pressure threshold (it needs to be replaced if it exceeds 25 kPa, otherwise it will lead to insufficient air intake and power loss). Compared with traditional air filters, it is more convenient to maintain. You only need to remove the ring clamp and replace the air filter directly.

[0012] 3. Structurally, compared to traditional air filters, it eliminates the need for an external housing, saving on component costs and reducing the overall size of the air filter. This allows it to be used in environments with tight space. In terms of performance, the absence of an external housing reduces intake resistance and increases the airflow, meeting the high intake flow requirements of high-horsepower generators. Filtration efficiency: It has the ability to intercept particles from 0.1 to 10 μm; electrostatic electret treatment can further enhance submicron-level filtration. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a top view of the present invention; Figure 3 for Figure 2 A sectional view along the AA direction.

[0014] The markings in the diagram correspond to: 1-Air filter body, 11-Upper end cover, 12-Lower end cover, 13-Intermediate body, 2-Air filter bracket, 21-Upper connecting pipe, 22-Lower connecting pipe, 3-Mounting bracket, 4-Ring clamp, 5-Limiting block. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments. Example 1

[0016] like Figures 1-3 As shown, an air filtration device for a high-horsepower generator includes an air filter body 1 and an air filter support 2. The air filter body 1 includes an upper end cover 11, a lower end cover 12, and an intermediate body 13. The intermediate body 13 includes a central tube, an outer protective mesh, and filter media. The outer protective mesh and filter media are disposed outside the central tube. The air filter body is constructed using a molding process with rigid PU as the material for the upper end cover 11 and the lower end cover 12, integrating the central tube, outer protective mesh, filter media, and the upper and lower end covers into one unit. The air filter support 2 includes an upper connecting pipe 21 and a lower connecting pipe 22. The lower connecting pipe 22 is located below the upper connecting pipe 21 and is connected to it. The lower pipe 22 is connected to the upper pipe 21 by a mounting bracket 3 welded to it. The air filter bracket 2 is mounted on the engine via the mounting bracket 3. The lower end cover 22 is hollow in the middle. The outer diameter of the upper pipe 21 is smaller than the inner diameter of the central body 13. The upper part of the upper pipe 21 passes through the lower end cover 22 and is located inside the central body 13. The lower pipe 22 is connected to the engine intake pipe. The lower end cover 22 and the upper pipe 21 are connected and fixed by a ring 4. A limiting block 5 is welded to the outer wall of the upper pipe 21. The limiting block 5 is located below the ring 4 and limits the installation position of the air filter body 1.

[0017] During maintenance, the replacement cycle is determined based on the air filter's dust holding capacity and differential pressure threshold (it needs to be replaced if it exceeds 25 kPa, otherwise it will lead to insufficient air intake and power loss). Compared with traditional air filters, it is more convenient to maintain. You only need to remove the ring clamp and replace the air filter directly.

[0018] Structurally, compared to traditional air filters, it eliminates the need for an external housing, saving on component costs and reducing the overall size of the air filter. This allows it to be used in environments with tight space constraints. In terms of performance, the absence of an external housing reduces intake resistance and increases the airflow rate, meeting the high airflow requirements of high-horsepower generators. Filtration efficiency: It can intercept particles from 0.1 to 10 μm; electrostatic electret treatment further enhances submicron-level filtration.

[0019] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The above provides a detailed description of an air filtration device for a high-horsepower generator single unit provided by this utility model. The description of the specific embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the premise of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An air filter arrangement for a large horsepower electric power generating unit, characterized by: The air filter includes an air filter body (1) and an air filter bracket (2), which are detachably connected. The air filter bracket (2) is mounted on the engine via a mounting bracket (3). The air filter body (1) includes an upper end cover (11), a lower end cover (12), and an intermediate body (13). The intermediate body (13) includes an intermediate tube, an outer protective net, and filter material. The outer protective net and filter material are disposed outside the intermediate tube.

2. An air filter assembly for a large horsepower electric power generating unit as defined in claim 1 wherein: The upper cover (11) and lower cover (12) are both made of hard PU material, and the outer protective net, filter material, upper cover and lower cover are an integral structure.

3. An air filter assembly for large horsepower electric generating units as defined in claim 1 wherein: The air filter bracket (2) includes an upper pipe (21) and a lower pipe (22). The lower pipe (22) is located below the upper pipe (21) and is connected to the upper pipe (21). The mounting bracket (3) is welded to the lower pipe (22) and is connected to the upper pipe (21).

4. An air filter assembly for a large horsepower electric generating unit as set forth in claim 3, wherein: The lower end cap (12) is hollow in the middle. The upper part of the upper pipe (21) passes through the lower end cap (12) and is located inside the intermediate body (13). The lower end cap (12) and the upper pipe (21) are connected and fixed by a ring (4).

5. An air filter assembly for a large horsepower electric generating unit as set forth in claim 4, wherein: A limiting block (5) is welded to the outer wall of the upper pipe (21), and the limiting block (5) is located below the ring hoop (4).

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