Filtering and silencing structure for compressor air intake

Abstract

The utility model discloses a filter sound -absorbing structure is used to compressor air intake, including front cover, back cover, filter component, the front cover is fixedly connected with back cover and forms the internal cavity, be equipped with a plurality of baffle and sound -absorbing cotton in the internal cavity, the filter component is provided with air inlet and air outlet, the upper portion of front cover sets up the installation cavity, the installation cavity can dismantle and install filter component, the bottom of back cover sets up the air outlet, the length of baffle is less than the length of internal cavity, a plurality of baffles are mutually staggered arrangement, and the airflow channel is formed between mutually staggered arrangement baffle. The utility model integrates filter and sound -absorbing function in the same structure, replaces traditional discrete scheme, before compressor air intake, through the utility model can play the double -deck effect of filter and sound -absorbing, reduces equipment occupied space simultaneously, reduces installation layout difficulty, simplifies installation and maintenance process, and then reduces comprehensive cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of compressor silencing devices, specifically relating to a filter silencing structure for compressor intake. Background Technology

[0002] In the oxygen production field, the compressor is the core power equipment. When the compressor draws in air, if it directly draws in dust-laden airflow, the dust particles will accelerate the wear and tear on the internal components of the compressor, shortening the equipment's lifespan; at the same time, the noise generated by the airflow will also bring a poor user experience to customers.

[0003] Current compressors employ a discrete intake design without pre-filtering. This involves a single silencer box at the compressor intake, or two silencer boxes for compressors with dual intake structures. This design has significant drawbacks: firstly, the dispersed silencers occupy a large space, increasing the difficulty and cost of compressor installation and layout; secondly, the procurement, installation, and maintenance costs of multiple silencers are high. Thirdly, the lack of pre-filtering makes the silencers prone to clogging due to dust accumulation, increasing maintenance costs. Furthermore, insufficiently filtered airflow can damage the compressor, and the noise reduction effect is limited by dust content in the airflow and the simple design, making it difficult to meet the comprehensive requirements of compressor intake cleanliness, low noise, and cost control. Utility Model Content

[0004] This utility model addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing a compressor intake filter and noise reduction structure, including a front cover plate, a rear cover plate, and a filter assembly. The front cover plate and the rear cover plate are fixedly connected to form an internal cavity, within which multiple baffles and noise-reducing cotton are provided. The filter assembly has an air inlet and an air outlet. The upper part of the front cover plate has a mounting cavity for detachably mounting the filter assembly, and the bottom of the rear cover plate has an exhaust port. The length of each baffle is less than the length of the internal cavity, and the multiple baffles are staggered, forming airflow channels between them.

[0005] Preferably, the filtration assembly is a filter paper box, the filter paper box is provided with a frame, the filter paper is provided at the air inlet and air outlet of the filter paper box, the filter paper is fixedly connected to the frame, and filter material is provided inside the filter paper box.

[0006] Preferably, the filter assembly is connected to the mounting cavity via a slot-fit connection.

[0007] Preferably, the sound-absorbing cotton is made of Opseilo sound-absorbing cotton.

[0008] Preferably, the distance between two adjacent baffles is 10mm-150mm.

[0009] Preferably, a sealing ring is provided at the connection between the front cover plate and the rear cover plate, and the front cover plate and the rear cover plate are fixedly connected in an airtight manner by tightening the sealing ring with screws.

[0010] Preferably, the filter assembly is provided with pull strips.

[0011] Preferably, the exhaust port is provided with a quick-connect fitting, which is threadedly connected to the exhaust port.

[0012] Preferably, the number of filter components is multiple.

[0013] The beneficial effects of this utility model are:

[0014] This invention integrates filtration and noise reduction functions into the same structure, replacing the traditional discrete solution. Before the compressor intake, this invention can achieve the dual effects of filtration and noise reduction, while reducing the space occupied by the equipment, lowering the difficulty of installation layout, simplifying the installation and maintenance process, and thus reducing the overall cost.

[0015] The filter assembly structure effectively intercepts dust particles, reduces wear on internal compressor components, and extends equipment lifespan. The filter assembly is detachably connected to the mounting cavity, facilitating daily replacement and improving maintenance efficiency. Multiple baffles are staggered to form airflow channels, which, combined with sound-absorbing cotton, significantly reduce intake noise and enhance user experience by extending the airflow path and absorbing sound waves.

[0016] The design of multiple filter components increases the air intake area, reduces the interception effect, and minimizes the impact on compressor performance; the exhaust port is equipped with a quick-connect fitting to facilitate airflow into the compressor and make installation convenient. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0018] Figure 2 This is a schematic diagram of the front cover plate in this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the rear cover plate in this utility model.

[0020] Figure 4 This is the second structural schematic diagram of this utility model.

[0021] Figure 5 yes Figure 4 Cross-sectional view along the CC plane.

[0022] In the diagram, the markings are as follows: 1 is the front cover; 2 is the filter assembly; 3 is the screw; 4 is the filter media; 5 is the sound-absorbing cotton; 6 is the quick-connect connector; 7 is the rear cover; 8 is the baffle; 101 is the first cavity; 102 is the second cavity; 201 is the air inlet; and 202 is the air outlet. Detailed Implementation

[0023] To make the technical problems solved, the technical solutions, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] Combination Figures 1 to 5 As shown, a compressor intake filter and noise reduction structure includes a front cover plate 1, a rear cover plate 7, and a filter assembly 2. The front cover plate 1 and the rear cover plate 7 are fixedly connected to form an internal cavity.

[0025] like Figure 5 As shown, the internal cavity includes a first cavity 101 and a second cavity 102 that are interconnected. The second cavity 102 is provided with multiple baffles 8 and sound-absorbing cotton 5. The filter assembly 2 is provided with an air inlet 201 and an air outlet 202. The upper part of the front cover plate 1 is provided with an installation cavity, in which the filter assembly 2 can be detachably installed. The bottom of the rear cover plate 7 is provided with an exhaust port.

[0026] The length of the baffle 8 is less than the length of the internal cavity, so that there is space between the baffle 8 and the side wall of the internal cavity, and multiple baffles 8 are arranged in a staggered manner.

[0027] like Figure 2 As shown, the staggered arrangement here refers to the fact that within the second cavity 102, the baffles 8 are sequentially named from top to bottom according to their spatial position: first baffle, second baffle, third baffle, and so on. More baffles 8 can be set depending on the air intake volume. The tail end of the first baffle is fixedly connected to the right side wall panel inside the second cavity 102, and a space is left between the head end of the first baffle and the left side panel inside the second cavity 102; the head end of the second baffle is fixedly connected to the left side wall panel inside the second cavity 102, and a space is left between the tail end of the second baffle and the right side panel inside the second cavity 102; the tail end of the third baffle is fixedly connected to the right side wall panel inside the second cavity 102, and a space is left between the head end of the third baffle and the left side panel inside the second cavity 102… The spaces between the baffles 8 and the inner side wall of the second cavity 102, and between the baffles 8 themselves, form an airflow channel. This airflow channel is tortuous, resembling a "bow" shape.

[0028] The noise reduction structure of this utility model includes noise reduction cotton 5 filling the internal cavity and airflow channels formed by baffles 8 arranged in a staggered manner. The airflow channels extend the airflow path, stabilize the airflow, and achieve the effect of noise reduction.

[0029] More preferably, an arc-shaped guide vane is provided at the corner of the airflow channel. The arc-shaped guide vane is used to guide the airflow to turn smoothly and extend the sound wave reflection path.

[0030] Specifically, the filter assembly 2 is a filter paper box, which filters impurities, dust, and other substances in the air, purifies the air intake of the compressor, and extends the service life of the compressor. The filter paper box has a frame, and filter paper is installed at the air inlet 201 and air outlet 202 of the filter paper box. The filter paper is fixedly connected to the frame, and filter media 4 is installed inside the filter paper box.

[0031] Specifically, the filter assembly 2 is connected to the mounting cavity via a slot-fit connection. Since the filter assembly 2 is frequently replaced during use, the slot-fit connection provides a detachable connection, facilitating replacement.

[0032] In another preferred embodiment, the filter paper box frame is made of soft cotton, the filter paperboard is corrugated cardboard, and the interior of the filter paper box is lined with multiple layers of filter media 4, such as meltblown cloth and activated carbon layers. The filter media 4 are tightly bonded or pressed to the frame of the filter paper box. When there are multiple filter paper boxes, they are interference-fitted, meaning that multiple filter paper boxes are squeezed into the mounting cavity (because the frame is made of soft cotton, there is compression space), which facilitates replacement and maintenance.

[0033] Specifically, the material of the sound-absorbing cotton 5 is Opseilo sound-absorbing cotton.

[0034] Specifically, the distance between two adjacent baffles 8 is 10mm-150mm.

[0035] Specifically, a sealing ring is provided at the connection between the front cover plate 1 and the rear cover plate 7, and the front cover plate 1 and the rear cover plate 7 are fixedly connected in an airtight manner by pressing the sealing ring with screws 3.

[0036] Specifically, a pull bar is provided on the filter assembly 2. The pull bar allows the filter assembly 2 to be easily pulled out.

[0037] Specifically, the exhaust port is equipped with a quick-connect fitting 6, which is threadedly connected to the exhaust port. The quick-connect fitting 6 is used to introduce filtered and silenced airflow into the compressor.

[0038] Specifically, there are multiple filter components 2. For example... Figure 1 As shown, three filter paper boxes are installed, connecting to three compressors with dual air intake structures. Multiple filter paper boxes effectively increase the air intake area, reduce the interception effect caused by filtration, and minimize the impact on compressor performance. The structure formed by fusing multiple filter paper boxes can connect multiple compressors, saving space while increasing air intake filtration functionality.

[0039] The working process of this utility model:

[0040] Dust-laden airflow enters through the inlet 201 of the filter assembly 2. The filter assembly 2 intercepts and filters dust particles in the airflow, preventing dust from entering the compressor and aggravating component wear. After blocking impurities in the air, the airflow passes through the outlet 202 and enters the first cavity 101, which allows for better airflow. Then, the airflow enters the second cavity 102.

[0041] Airflow enters the airflow channel formed by the staggered arrangement of baffles 8. As the airflow flows through the channel, its path is extended, and it comes into full contact with the sound-absorbing cotton 5 filling the internal cavity. Sound waves are reflected and refracted multiple times within the airflow channel, and the energy is absorbed by the sound-absorbing cotton 5, thereby reducing the noise generated by the airflow. Furthermore, the arc-shaped guide vanes at the corners of the airflow channel guide the airflow to a smooth turn, further extending the sound wave reflection path and enhancing the noise reduction effect.

[0042] The filtered and silenced airflow reaches the exhaust port at the bottom of the rear cover 7, and is introduced into the compressor through the pipe connected by the quick-connect connector 6, completing the entire intake process.

[0043] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. A filter and noise reduction structure for compressor intake, characterized in that, It includes a front cover plate (1), a rear cover plate (7), and a filter assembly (2). The front cover plate (1) and the rear cover plate (7) are fixedly connected to form an internal cavity. The internal cavity is provided with multiple baffles (8) and sound-absorbing cotton (5). The filter assembly (2) is provided with an air inlet (201) and an air outlet (202). The upper part of the front cover plate (1) is provided with an installation cavity, and the filter assembly (2) can be detachably installed in the installation cavity. The bottom of the rear cover plate (7) is provided with an exhaust port. The length of the baffle (8) is less than the length of the internal cavity. The multiple baffles (8) are staggered and arranged in a staggered manner, and an airflow channel is formed between the staggered baffles (8).

2. The compressor intake filter and noise reduction structure according to claim 1, characterized in that, The filter assembly (2) is a filter paper box. The filter paper box is provided with a frame. Filter paper is provided at the air inlet (201) and air outlet (202) of the filter paper box. The filter paper is fixedly connected to the frame. Filter material (4) is provided inside the filter paper box.

3. The compressor intake filter and noise reduction structure according to claim 1, characterized in that, The filter component (2) is connected to the mounting cavity via a slot-fit connection.

4. The compressor intake filter and noise reduction structure according to claim 1, characterized in that, The sound-absorbing cotton (5) is made of Opseilo sound-absorbing cotton.

5. The compressor intake filter and noise reduction structure according to claim 1, characterized in that, The distance between two adjacent baffles (8) is 10mm-150mm.

6. The compressor intake filter and noise reduction structure according to claim 1, characterized in that, A sealing ring is provided at the connection between the front cover plate (1) and the rear cover plate (7). The front cover plate (1) and the rear cover plate (7) are fixedly connected to each other by pressing the sealing ring with screws (3).

7. The compressor intake filter and noise reduction structure according to claim 1, characterized in that, The filter assembly (2) is provided with a pull bar.

8. The compressor intake filter and noise reduction structure according to claim 1, characterized in that, The exhaust port is provided with a quick-connect fitting (6), which is threadedly connected to the exhaust port.

9. The compressor intake filter and noise reduction structure according to claim 1, characterized in that, The number of the filter components (2) is multiple.

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