Arc-shaped noise reduction air inlet channel

Abstract

The utility model belongs to the technical field of air coolers, and particularly relates to an arc-shaped noise reduction air inlet channel which comprises an air inlet channel body, an air inlet and an air outlet, the air inlet and the air outlet are formed in the two ends of the air inlet channel body respectively, the air inlet channel body is of an arc-shaped structure integrally, and a partition plate extending from the air inlet to the air outlet is arranged in the air inlet channel body. An arc-shaped flow channel is formed between the partition plate and the inner wall of the air inlet channel, and the arc-shaped structure design is adopted, so that the length of the flow channel is increased, airflow vortex and turbulent flow are reduced, noise is lowered, and airflow uniformity and circulation efficiency are improved. Meanwhile, heat exchange cotton is arranged, so that the cooling effect is further improved. The air inlet channel further has the advantages of being stable in structure, good in material quality and the like, and is suitable for various fan models and cooling requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of air coolers, and particularly relates to an arc-shaped sound-absorbing air inlet duct. Background Art

[0002] An air cooler, abbreviated as such, is a heat exchange device most frequently used for condensation and cooling in petrochemical and oil and gas processing production. Usually, a fan for cooling and an air inlet duct connected to the fan are provided inside the air cooler.

[0003] In the prior art, most of the air inlet ducts of cooling fans are rectangular or cylindrical straight ducts. Such an air inlet duct structure causes greater noise when the cooling air enters the fan. At the same time, eddy currents are easily formed when the air flow flows in the air inlet duct, resulting in uneven air flow distribution, thereby affecting the cooling effect of the fan. Summary of the Utility Model

[0004] In view of this, the utility model provides an arc-shaped sound-absorbing air inlet duct, aiming to increase the flow path length, reduce air flow eddy currents and turbulence, reduce noise, improve air flow uniformity and flow efficiency by adopting an arc-shaped structure design. At the same time, by arranging heat exchange cotton 6, the cooling effect is further improved. The air inlet duct also has the characteristics of stable structure and excellent material, and is applicable to various fan models and cooling requirements.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An arc-shaped sound-absorbing air inlet duct includes an air inlet duct, and an air inlet and an air outlet respectively arranged at both ends of the air inlet duct. The air inlet duct is integrally in an arc-shaped structure, and a partition plate extending from the air inlet to the air outlet is arranged inside the air inlet duct. An arc-shaped flow path is formed between the partition plate and the inner wall of the air inlet duct.

[0007] As a preferred technical solution, both the air inlet and the air outlet are of square structures.

[0008] Furthermore, the partition plate is fixed in the openings of the air inlet and the air outlet in a cross-shaped structure.

[0009] Furthermore, the flow paths are distributed in a cross shape inside the air inlet duct along the partition plate.

[0010] Furthermore, the included angle between the air inlet and the air outlet is 90 degrees.

[0011] Furthermore, heat exchange cotton is provided on the inner wall of the air inlet duct and on the side of the partition plate facing the flow path.

[0012] In summary, due to the adoption of the above technical solutions, the beneficial effects of the utility model are as follows:

[0013] By adopting an arc-shaped structure design, the length of the flow channel is increased, air flow vortices and turbulence are reduced, noise is lowered, and air flow uniformity and circulation efficiency are improved. At the same time, by setting the heat exchange cotton 6, the cooling effect is further enhanced. This air inlet duct also features stable structure and excellent materials, and is applicable to various fan models and cooling requirements. Brief Description of the Drawings

[0014] The present utility model will be described by way of examples with reference to the accompanying drawings, where:

[0015] Figure 1 is a schematic structural view of an arc-shaped sound-absorbing air inlet duct provided by the present utility model;

[0016] Figure 2 is a schematic internal structural view of the air inlet duct provided by the present utility model;

[0017] Figure 3 is a schematic cross-sectional structural view of the flow channel provided by the present utility model.

[0018] Air inlet duct - 1; Air inlet - 2; Air outlet - 3; Partition - 4; Flow channel - 5; Heat exchange cotton - 6. Detailed Embodiment

[0019] The following clearly and completely describes the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment

[0021] In the prior art, the air inlet ducts of cooling fans generally adopt a rectangular or cylindrical straight-line design. Such an air inlet duct structure not only easily causes relatively large noise when the air flow enters the fan, but also easily forms vortices during the flow of the air flow inside the air inlet duct, resulting in uneven air flow distribution. This uneven air flow distribution will further affect the cooling effect of the fan, leading to a reduction in cooling efficiency.

[0022] Therefore, in order to solve the problems that the existing air inlet duct 1 has relatively large noise after cold air is blown in and easily forms vortices during the flow of the air flow inside the air inlet duct, and to achieve the functions of reducing noise and making the air flow circulate evenly, the present utility model discloses an arc-shaped sound-absorbing air inlet duct. Refer to Figure 1 - Figure 2, including an air inlet duct 1, and an air inlet 2 and an air outlet 3 respectively arranged at both ends of the air inlet duct 1. Specifically, the air inlet duct 1 is integrally in an arc structure, and a partition 4 extending from the air inlet 2 to the air outlet 3 is provided inside the air inlet duct 1. An arc-shaped flow channel 5 is formed between the partition 4 and the inner wall of the air inlet duct 1;

[0023] When the cooling fan introduces external air flow into the air inlet duct 1, compared with the existing straight air duct, the flow channel 5 in the arc-shaped air inlet duct 1 will be longer than that of the straight air duct. By lengthening the air flow channel, the flow velocity of the air flow can be made more uniform. Secondly, due to the arc of the arc-shaped air inlet duct 1 and the flow channel 5, the air flow can flow in a streamline shape, which can reduce the eddy current and turbulence generated when the air flow makes a sharp turn, thereby reducing the flow resistance and making the air flow more smooth. And because the resistance in the flow channel 5 is small, the noise generated when the air flow passes through can be further reduced.

[0024] In this embodiment, both the air inlet 2 and the air outlet 3 are in a square structure. With this structure, when the air flow enters or exits the air inlet duct 1, the contact area in each direction is equal, thereby ensuring that the distribution of the air flow in the air inlet duct is more uniform and reducing the formation of eddy currents.

[0025] In the above embodiment, refer to Figure 3 , the partition 4 is arranged in a cross-shaped structure, and the partition 4 evenly divides the openings of the air inlet 2 and the air outlet 3. The flow channel 5 is distributed in a grid pattern along the partition 4 inside the air inlet duct 1. With this setting, the partition 4 can evenly divide the internal space of the air inlet duct 1 into four small flow channels 5, so that after the air flow enters the air inlet duct 1, it can be evenly distributed into each small flow channel 5, further improving the uniformity and flow efficiency of the air flow. At the same time, the cross-shaped structure of the partition 4 also enhances the structural stability of the air inlet duct 1, enabling it to better withstand air flow impact and vibration.

[0026] In this embodiment, refer to Figure 3 , heat exchange cotton 6 is provided on the inner wall of the air inlet duct 1 and on the side of the partition 4 facing the flow channel 5. Through the setting of the heat exchange cotton 6, when the air flow passes through the flow channel 5, the air flow can be cooled and heat exchanged to a certain extent, thereby further improving the cooling effect of the fan. At the same time, the material and structure of the heat exchange cotton 6 can also be selected and adjusted according to actual needs to meet different cooling requirements. Among them, the heat exchange cotton 6 is processed and produced with glass fiber as the material, such as glass fiber cotton and glass wool, and also has the functions of sound insulation and anti-resonance, thereby further improving the sound insulation effect of the arc-shaped sound-absorbing air inlet duct.

[0027] Secondly, since the channel for the air flow to flow through is elongated, the air flow will come into contact with the heat exchange cotton 6 for a longer time when flowing in the flow channel 5, which helps to further improve the heat exchange effect and the sound absorption effect.

[0028] In this embodiment, the included angle between the air inlet 2 and the air outlet 3 is ninety degrees. Among them, the air inlet 2 is located below the air outlet 3. Through this setting, the situation of the air flow flowing downward in a reverse manner can be avoided, and the air flow can flow more smoothly from the air inlet 2 to the air outlet 3. At the same time, the ninety-degree included angle design also conforms to the common installation angle of the fan, which is convenient for installation and layout in practical applications.

[0029] In this embodiment, optionally, the material of the air inlet passage 1 is stainless steel. The stainless steel material has excellent corrosion resistance and high temperature resistance, which can ensure that the air inlet passage 1 is not easy to rust and deform during long-term use. At the same time, it can withstand relatively high temperatures, ensuring the stability and reliability of the air inlet passage 1. In addition, the stainless steel material also has excellent mechanical properties, enabling the air inlet passage 1 to withstand certain mechanical impacts and vibrations, improving the service life and safety.

[0030] In addition, the arc-shaped sound-absorbing air inlet passage can also be customized according to actual needs to meet different fan models and cooling requirements. For example, according to the installation position and space size of the fan, the arc curvature and size of the air inlet passage 1 can be adjusted to ensure its perfect match with the fan. At the same time, according to the requirements of the cooling effect, the material and thickness of the heat exchange cotton 6 can be adjusted to achieve the best cooling effect.

[0031] To sum up, the working principle of the arc-shaped sound-absorbing air inlet passage is that by adopting the arc-shaped structure design, the flow channel length is increased, the air flow eddy current and turbulence are reduced, the noise is reduced, and the air flow uniformity and flow efficiency are improved. At the same time, by setting the heat exchange cotton 6, the cooling effect is further improved. The air inlet passage also has the characteristics of stable structure and excellent material, and is applicable to various fan models and cooling requirements.

[0032] In the description of this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An arc-shaped sound-absorbing air inlet passage, comprising an air inlet passage (1), and an air inlet (2) and an air outlet (3) respectively arranged at both ends of the air inlet passage (1), characterized in that, The intake duct (1) is integrally of an arc-shaped structure, and a partition plate (4) extending from the air inlet (2) to the air outlet (3) is provided inside the intake duct (1). An arc-shaped flow channel (5) is formed between the partition plate (4) and the inner wall of the intake duct (1).

2. The arc-shaped sound-absorbing air inlet according to claim 1, wherein Both the air inlet (2) and the air outlet (3) are of square structures.

3. The arc-shaped sound-absorbing air inlet according to claim 1, wherein The partition plate (4) is fixedly arranged in the openings of the air inlet (2) and the air outlet (3) in a cross-shaped structure.

4. The arc-shaped sound-absorbing air inlet according to any one of claims 1-3, characterized in that The flow channels (5) are distributed in a cross shape inside the intake duct (1) along the partition plate (4).

5. The arc-shaped sound-absorbing air intake duct according to claim 1, characterized in that, The included angle between the air inlet (2) and the air outlet (3) is 90 degrees.

6. The arc-shaped sound-absorbing air inlet according to claim 1, characterized in that, Heat exchange cotton (6) is provided on the inner wall of the intake duct (1) and on the side of the partition plate (4) facing the flow channel (5).

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