Air compressor protection structure

Abstract

The utility model discloses a kind of air compressor protection structures, including filter box, impeller and filter assembly, filter box side is equipped with cover, the other side is connected motor for driving impeller rotation.Filter box and cover surface are equipped with air inlet filter tank and air outlet respectively, cover surface is provided with backwash pipe.Filter assembly includes filter screen disc and multiple filter core, filter core both ends are equipped with air hole, inside is equipped with fibre column and drying filter box, for realizing airflow multistage purification and dehumidification.Sealing ring is equipped between cover and filter box, ensure structural sealing, backwash pipe connects high-pressure gas source for filter core backblowing ash removal.The structure has the advantages of high filtration efficiency, filter core can be dismantled and replaced, automatic ash removal and strong structural sealing, suitable for air compressor air inlet protection system.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, specifically to an air compressor protective structure. Background Technology

[0002] As a core component of pneumatic systems, air compressors are widely used in industries such as manufacturing, transportation, and medicine. The quality of the intake air directly affects the compressor's operating efficiency and service life. To prevent external dust, moisture, and other contaminants from entering the compression chamber and affecting internal components, compressors are typically equipped with a protective structure at the intake end for pre-filtration and gas purification.

[0003] Currently, most air compressor protective structures on the market adopt an integrated metal filter or a single-stage filter element structure. The filter material is fixed inside the intake channel or filter housing and is pre-installed at the factory. Some structures add moisture-absorbing material or fill with a desiccant pack at the rear end of the filter for simple dehumidification. However, this type of structure still has the following shortcomings: Limited filtration function and purification effect: Traditional filter elements are mostly coarse filters or single-layer fiber materials, which cannot simultaneously achieve particle filtration and gas dehumidification. As a result, it is difficult to fully remove residual impurities and moisture in the intake air, affecting the purity of compressed air and the stability of the system.

[0004] The filter media is not replaceable and maintenance is inconvenient: Most existing protective structures are designed as a whole and lack a convenient disassembly mechanism. Users need to replace the entire shell or disassemble the pipeline when maintaining or replacing the filter media, which is time-consuming, labor-intensive, and costly, and is not conducive to long-term stable operation.

[0005] In summary, existing air compressor protection structures still have significant shortcomings in terms of filtration efficiency, modularity, ease of maintenance, and automatic cleaning capabilities. There is an urgent need to provide a structure that can achieve multi-stage filtration and dehumidification in one step, and has the characteristics of being replaceable and capable of backflushing for dust removal, in order to improve the overall operational safety and practicality of the system. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: an air compressor protection structure, including: a filter box, an impeller, and a filter assembly. A cover is installed on one side of the filter box, and a motor is installed on the other side to drive the impeller to rotate. The filter box and the cover are respectively provided with an inlet filter canister and an outlet port. A backwash pipe is provided outside the cover. Specifically, this structure forms a complete airflow channel. The motor drives the impeller to draw in external air, which is purified by the filter assembly and then output to the compression system. The backwash pipe is used to back-flush and clean the filter element area. A fastener is provided on one side of the cover for detachable installation of the cover. Several through holes are opened on the surface of the filter screen for detachable installation of the filter element.

[0008] In a preferred embodiment, the filtration assembly includes a filter disc and multiple removable filter elements. The filter elements are arranged in an array along the arc surface of the filter disc, and air holes are opened at both ends of the filter elements to allow air to pass through. The internal components include fiber columns and a drying filter box. Specifically, the fiber columns are used to intercept fine particulate matter, the drying filter box is used to remove moisture from the air, and the modular design of the filter elements facilitates replacement and combination, improving usage flexibility and air purification capabilities.

[0009] In a preferred embodiment, the air intake filter canister contains multiple layers of metal filter mesh with progressively smaller mesh openings. Specifically, this structure enables preliminary coarse filtration before air enters, extends the service life of the internal filter elements, reduces the burden on the main filter, and improves overall filtration efficiency.

[0010] In a preferred example, the impeller surface is provided with obliquely arranged blades, which are driven to rotate by a motor, thereby achieving efficient axial propulsion of air. Specifically, this structure helps to stabilize the airflow direction and improve the intake air volume and system aerodynamic efficiency.

[0011] In a preferred embodiment, the cover and the filter box are connected by a sealing ring arranged circumferentially along the inner wall of the cover to prevent moisture and dust from seeping into the cavity. Specifically, this sealing structure ensures the overall airtightness of the protective device, effectively protecting internal components from corrosion and contamination.

[0012] In a preferred embodiment, the backwash pipe penetrates the housing and is connected to a high-pressure air source for backflushing and cleaning the filter assembly after the equipment is shut down. Specifically, this design enables filter element cleaning without disassembly, effectively extending its lifespan and maintaining unobstructed airflow.

[0013] In a preferred embodiment, the filter element is a hollow cylindrical structure, with fiber columns disposed at the front and a drying filter box disposed at the rear, the two connected by a snap-fit ​​or sleeve structure. Specifically, this partitioned structure allows for separation of filtration and dehumidification functions, making it easier to configure or replace the filter element individually according to different usage needs; the fiber columns fill the front section of the filter element's inner cavity, and the drying filter box is disposed at the rear section of the filter element's inner cavity, the fiber columns and the drying filter box being detachably connected by a snap-fit ​​or sleeve structure.

[0014] In a preferred embodiment, the filter disc adopts an arc-shaped structure, with its outer edge engaging with the inner wall of the cover via a slot, and multiple filter elements arrayed on its surface; its outer edge also engages with the inner slot of the cover, with several filter elements evenly arrayed along the arc surface of the filter disc. Specifically, this structure helps to increase the number of filter elements per unit volume, expand the filtration area, and improve the overall filtration capacity and air resistance balance of the protective structure.

[0015] In summary, this utility model, through integrated structural design and combination of multifunctional components, achieves multi-stage filtration, efficient dehumidification, convenient maintenance and reliable sealing at the air compressor intake, significantly improving air quality and equipment operational reliability. It is suitable for various industrial environments with high requirements for compressed air cleanliness.

[0016] The beneficial effects achieved by this utility model are as follows: 1. By setting up a filter screen and a replaceable filter element assembly, and integrating a fiber column and a drying filter box structure inside the filter element, multi-stage filtration and dehumidification of the incoming air is achieved. This effectively blocks particulate matter and water vapor, improves the cleanliness of compressed air, and thus ensures the safe operation of the compressor and the service life of downstream equipment.

[0017] 2. In this utility model, the cover adopts a detachable structure, combined with the backwash pipe and quick-release design of the filter element. This not only makes it convenient for users to regularly replace and maintain the internal filter element, but also enables automatic backflushing and dust removal through an external air source, effectively extending the filter material life, reducing the maintenance frequency, and improving the stability and reliability of equipment operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is an exploded structural diagram of one embodiment of the present invention; Figure 3 This is a schematic diagram of the installation structure of a filter assembly according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the surface structure of the filter screen disk according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of a filter element according to an embodiment of the present invention.

[0019] Figure label: 100. Filter box; 110. Cover; 120. Motor; 101. Inlet filter canister; 111. Outlet port; 112. Backwash pipe; 200. Impeller; 300. Filter assembly; 310. Filter screen; 320. Filter element; 321. Fiber column; 322. Drying filter box. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0021] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0022] The following describes, with reference to the accompanying drawings, some embodiments of an air compressor protection structure provided by this utility model.

[0023] Combination Figures 1-5 As shown, the present invention provides an air compressor protection structure, comprising: a filter box 100, an impeller 200, and a filter assembly 300. A cover 110 is fixedly installed on one side of the filter box 100, and a motor 120 for driving the impeller 200 to rotate is fixedly installed on the other side of the filter box 100 to generate airflow. A fastener is provided on one side of the cover 110 for detachable installation of the cover 110. Several through holes are provided on the surface of the filter screen 310 for detachable installation of the filter element 320.

[0024] The outer surface of the filter box 100 is provided with an air inlet filter canister 101, which is used to perform preliminary filtration of external air and prevent large particles of impurities from directly entering the interior; the outer surface of the cover 110 is provided with an air outlet port 111, which is connected to the air inlet of the compressor and is used to output clean air that has undergone multi-stage filtration.

[0025] A backwash pipe 112 is fixedly installed on the cover 110. The backwash pipe 112 penetrates the outer shell structure of the cover 110, with one end connected to an external high-pressure air source and the other end leading into the interior of the cover 110. When the equipment is stopped, the backwash pipe 112 can release high-pressure air into the interior to back-flush the filter assembly 300, remove dust adhering to the surface of the filter material, and extend the service life of the filter element.

[0026] The filter assembly 300 is installed in a sealed cavity between the cover 110 and the filter box 100, and includes a filter screen 310 and a plurality of filter elements 320 arranged on the surface of the filter screen 310. The filter screen 310 is designed with an arc surface structure, and its outer edge is connected to the inner wall of the cover 110 by a slot, which facilitates overall assembly and disassembly. The plurality of filter elements 320 are evenly arranged in an array along the arc surface of the filter screen 310; their outer edges are installed in an array with the inner side slot of the cover 110, and the plurality of filter elements 320 are evenly arranged in an array along the arc surface of the filter screen 310.

[0027] Each filter element 320 is a cylindrical hollow structure with air holes at both ends to allow airflow through both sides of the filter disc 310. The filter element 320 has a functional filter media module inside, consisting of fiber columns 321 at the front and a drying filter box 322 at the rear. The fiber columns 321 fill the front section of the filter element 320's inner cavity, while the drying filter box 322 is located at the rear. The fiber columns 321 and the drying filter box 322 are detachably connected via a snap-fit ​​or sleeve structure. The fiber columns 321 adsorb solid particles from the air, while the drying filter box 322 removes moisture from the air, improving the cleanliness of the compressed air. The detachable connection between the fiber columns 321 and the drying filter box 322 facilitates zone replacement or independent maintenance.

[0028] like Figure 2 and Figure 3 As shown, the filter element 320 is detachably installed on the filter screen 310 through a through-hole structure. Users can replace individual filter elements independently according to the running time, which is convenient and economical.

[0029] like Figure 1 As shown, the interior of the air intake filter canister 101 may be further provided with several metal filter mesh layers, which are arranged sequentially from the outside to the inside, and the gap between the meshes of each layer gradually decreases, so as to achieve primary coarse filtration and intermediate blocking, effectively reduce the burden on the filter components, and improve the overall dust removal efficiency.

[0030] like Figure 2 and Figure 3 As shown, the impeller 200 is installed between the filter box 100 and the motor 120. Its surface is provided with obliquely arranged blades for rotation under the drive of the motor 120, propelling airflow from the inlet filter canister 101 of the filter box 100 towards the outlet port 111 of the cover 110. The oblique blade design helps enhance the axial guiding ability of the airflow, increasing the air velocity and the overall system air volume.

[0031] like Figure 2 As shown, a sealing ring is provided between the cover 110 and the filter box 100. The sealing ring is located on the circumferential part of the inner wall of the cover 110 and contacts the outer shell of the filter box 100 to seal, preventing external moisture or pollutant particles from seeping into the filter cavity, thereby ensuring the cleanliness of the air source and stable operation of the compressor.

[0032] In summary, the air compressor protection structure described in this utility model, combined with multi-stage filtration, dehumidification, automatic backflushing, and modular replacement functions, effectively improves the air purification effect and ease of use, and is suitable for various industrial environments requiring high-cleanliness air sources.

[0033] Working principle and usage process of this utility model: This invention forms an air intake protection system for an air compressor through the coordinated structure of the filter box 100, impeller 200, and filter assembly 300. The specific working principle is as follows: External air first enters the system through the intake filter canister 101 on the filter box 100. The intake filter canister 101 can be equipped with multiple layers of metal filter screens to initially filter out large particles of impurities. After the motor 120 starts, it drives the impeller 200 to rotate. The impeller 200 has obliquely arranged blades on its surface. During the rotation, it generates axial airflow to push the air forward. The airflow enters the filter assembly 300 set inside the cover 110. First, it passes through the fiber column 321 section of the filter element 320 for fine particle filtration. Then, it passes through the drying filter box 322 to complete the gas dehumidification treatment, realizing multi-stage purification. The purified air is output through the air outlet 111 on the cover 110 for use by the air compressor. When the equipment stops running, a high-pressure air source can be connected through the backwash pipe 112 to perform reverse blowing into the filter assembly 300, effectively removing dust adhering to the outer surface of the filter element 320 and realizing the automatic dust removal function.

[0034] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A protective structure for an air compressor, characterized in that, include: The filter box (100), impeller (200), and filter assembly (300) are provided. A cover (110) is fixedly installed on one side of the filter box (100), and a motor (120) for driving the impeller (200) to rotate is fixedly installed on the other side of the filter box (100). An air inlet filter canister (101) and an air outlet port (111) are respectively provided on the surface of the filter box (100) and the cover (110). A backwash pipe (112) is fixedly installed on the surface of the cover (110). The filter assembly (300) includes a filter screen (310) and a number of filter elements (320) arranged on the surface of the filter screen (310). Air holes are provided at both ends of the filter elements (320) for airflow on both sides of the filter screen (310). Fiber columns (321) and a drying filter box (322) are provided inside the filter elements (320).

2. The air compressor protective structure according to claim 1, characterized in that, The air intake filter canister (101) has several metal filter mesh layers inside, and the mesh gap of the metal filter mesh layers decreases step by step.

3. The air compressor protective structure according to claim 1, characterized in that, The impeller (200) has obliquely arranged blades on its surface for axial airflow transport during rotation.

4. The air compressor protective structure according to claim 1, characterized in that, The cover (110) has a fastener on one side that connects to the filter box (100) for detachable installation of the cover (110). The filter screen (310) has several through holes on its surface for detachable installation of the filter element (320).

5. The air compressor protective structure according to claim 1, characterized in that, A sealing ring is provided between the cover (110) and the filter box (100). The sealing ring is located on the inner wall of the cover (110) in a circumferential position to prevent external impurities or moisture from entering the filter box (100).

6. The air compressor protective structure according to claim 1, characterized in that, One end of the backwash pipe (112) passes through the cover (110), and the other end is connected to a high-pressure air source for backwashing into the filter assembly (300) in the shutdown state to achieve automatic dust removal.

7. The air compressor protective structure according to claim 1, characterized in that, The filter element (320) has a columnar hollow structure. Fiber columns (321) are filled in the front section of the inner cavity of the filter element (320), and the drying filter box (322) is located in the rear section of the inner cavity of the filter element (320). The fiber columns (321) and the drying filter box (322) are detachably connected by a snap-fit ​​or sleeve structure.

8. The air compressor protective structure according to claim 1, characterized in that, The filter screen (310) is configured with an arc surface structure, and its outer edge is fitted with the inner groove of the cover (110) for installation. Several filter elements (320) are evenly arranged in an array along the arc surface of the filter screen (310).

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