Flow guide type noise elimination and flow division tee joint

Abstract

The utility model relates to the technical field of air conditioner ventilation systems, in particular to a flow guide type noise elimination and flow division tee joint which comprises a box body and a noise elimination body arranged in the box body, one end of the noise elimination body extends inwards to be provided with an air inlet channel, and the two sides of the noise elimination body extend inwards to be provided with air outlet channels respectively. The air outlet channels are communicated with the air inlet channel in the silencing body, an air inlet is formed in the box body and right opposite to the air inlet channel, an air outlet is formed in the box body and right opposite to the air outlet channels, and a resistant silencing cavity is formed between the air inlet channel and the two air outlet channels; in practical application, airflow enters the air inlet channel from the air inlet, is exhausted from the two air outlets after being silenced by the resistant silencing cavity, and absorbs noise generated by the airflow through the silencing body and the resistant silencing cavity, so that the noise reduction effect is good; wind noise can be effectively reduced, and the wind noise is prevented from entering a downstream area along with the air pipe.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning and ventilation system technology, specifically a flow-guiding, noise-reducing, and diverting tee. Background Technology

[0002] Air conditioning ventilation ducts are common components in air conditioning ventilation systems. Most existing duct tees are made of metal and do not have a sound-absorbing effect. When airflow passes through the tee, it will generate wind noise. The wind noise will enter the downstream area with the duct and inevitably have a certain impact on people's work and life. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a flow-guiding, noise-reducing, and diverting tee that can effectively reduce wind noise and prevent it from entering the downstream area through the duct.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A flow-guiding silencer tee includes a housing and a silencer body disposed within the housing. One end of the silencer body extends inward and has an air inlet channel. Both sides of the silencer body extend inward and have air outlet channels. The air outlet channels are connected to the air inlet channels inside the silencer body. An air inlet is disposed on the housing body facing the air inlet channels, and an air outlet is disposed on the housing body facing the air outlet channels. A resistive silencer cavity is formed between the air inlet channels and the two air outlet channels.

[0006] Furthermore, the sound-absorbing body is made of sound-absorbing cotton.

[0007] Furthermore, a support frame is provided inside the sound-absorbing cotton, and the support frame is fixed inside the box.

[0008] Furthermore, the inner wall of the air outlet channel is provided with an arc-shaped concave surface and a refractive surface, the arc-shaped concave surface is positioned opposite the refractive surface, and one end of the refractive surface extends to the air inlet channel.

[0009] Furthermore, one end of the arc-shaped concave surface is positioned directly opposite the air inlet channel.

[0010] Furthermore, a guide surface is provided at the other end of the arc-shaped concave surface, and the refractive surface extends to the opposite side of the guide surface.

[0011] Furthermore, the outer surface of the silencer is fitted to the inner wall of the box.

[0012] The beneficial effects of this utility model are:

[0013] In practical applications, airflow enters the air intake channel from the air inlet, is silenced by the resistive silencing cavity, and is discharged from the two air outlets. The noise generated by the airflow is absorbed by the silencing body and the resistive silencing cavity, resulting in good noise reduction. This utility model can effectively reduce wind noise and prevent wind noise from entering the downstream area with the air duct. Attached Figure Description

[0014] Figure 1 This is the left view of this utility model;

[0015] Figure 2 yes Figure 1 Cross-sectional view at point AA;

[0016] Reference numerals: 1. Box body; 11. Air inlet; 12. Air outlet; 2. Silencing body; 3. Air inlet channel; 4. Air outlet channel; 41. Arc-shaped cavity; 42. Reflective surface; 43. Guide surface; 5. Support frame. Detailed Implementation

[0017] like Figure 1 and Figure 2 As shown, a flow-guiding silencer tee includes a housing 1 and a silencer 2 disposed inside the housing 1. One end of the silencer 2 extends inward and is provided with an air inlet channel 3. Air outlet channels 4 extend inward on both sides of the silencer 2 respectively. The air outlet channels 4 are connected to the air inlet channel 3 inside the silencer 2. An air inlet 11 is provided on the housing 1 facing the air inlet channel 3, and an air outlet 12 is provided on the housing 1 facing the air outlet channels 4. An anti-silencing cavity is formed between the air inlet channel 3 and the two air outlet channels 4.

[0018] In use, the airflow enters the air inlet channel 3 from the air inlet 11, and after being silenced by the resistive silencing cavity, it is discharged from the two air outlets 12. The noise generated by the airflow is absorbed by the silencer 2 and the resistive silencing cavity, resulting in good noise reduction. This utility model can effectively reduce wind noise and prevent wind noise from entering the downstream area with the air duct.

[0019] like Figure 1 and Figure 2 As shown, the sound-absorbing body 2 is made of sound-absorbing cotton; in this embodiment, the sound-absorbing body 2 made of sound-absorbing cotton can effectively absorb the airflow noise refracted in the resistant sound-absorbing cavity.

[0020] like Figure 1 and Figure 2 As shown, a support frame 5 is provided inside the sound-absorbing cotton, and the support frame 5 is fixed inside the box 1. In this embodiment, during long-term use, the sound-absorbing cotton is easily collapsed under the impact of airflow. The support frame provides support for the sound-absorbing cotton to prevent it from collapsing during long-term use.

[0021] like Figure 1 and Figure 2As shown, the inner wall of the air outlet channel 4 is provided with an arc-shaped concave surface 41 and a refractive surface 42. The arc-shaped concave surface 41 is positioned opposite the refractive surface 42, and one end of the refractive surface 42 is connected to the air inlet channel 3. In this embodiment, as the airflow passes through the air outlet channel 4, the arc-shaped concave surface 41 increases the cross-sectional area of ​​the air outlet channel 4. The sound wave is reflected from the arc-shaped concave surface 41 to the refractive surface 42 of the air inlet channel 3, forming a phase difference with the original sound wave, thereby canceling each other out and further improving the sound absorption effect of the silencer 2.

[0022] like Figure 1 and Figure 2 As shown, one end of the arc-shaped concave surface 41 is positioned directly opposite the air inlet channel 3. In this embodiment, when one end of the arc-shaped concave surface 41 is positioned directly opposite the air inlet channel 3, the sound waves entering the arc-shaped concave surface 41 are more easily reflected from the arc-shaped concave surface 41 onto the refractive surface 42 of the air inlet channel 3, resulting in a better noise reduction effect.

[0023] like Figure 1 and Figure 2 As shown, the other end of the arc-shaped concave surface 41 is provided with a guide surface 43, and the refracting surface 42 extends to the opposite side of the guide surface 43; in this embodiment, when the refracting surface 42 extends to the opposite side of the guide surface 43, the guide surface 43 can guide the airflow.

[0024] like Figure 1 and Figure 2 As shown, the outer side of the silencing body 2 is in contact with the inner wall of the housing 1; in this embodiment, the silencing effect of the silencing body 2 is better when the outer side of the silencing body 2 is in contact with the inner wall of the housing 1.

[0025] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. A flow-guiding, noise-reducing, diverting tee, characterized in that: The device includes a housing and a silencer disposed within the housing. One end of the silencer extends inward and has an air inlet channel. Both sides of the silencer extend inward and have air outlet channels. The air outlet channels are connected to the air inlet channels inside the silencer. An air inlet is disposed on the housing facing the air inlet channels, and an air outlet is disposed on the housing facing the air outlet channels. An anti-noise silencing cavity is formed between the air inlet channels and the two air outlet channels. The inner wall of the air outlet channel is provided with an arc-shaped concave surface and a refractive surface, the arc-shaped concave surface is positioned opposite the refractive surface, and one end of the refractive surface extends to the air inlet channel; ‌ One end of the arc-shaped concave surface is positioned directly opposite the air inlet channel; The other end of the arc-shaped concave surface is provided with a guide surface, and the refractive surface extends to the opposite side of the guide surface.

2. The flow-guiding, noise-reducing, and diverting tee according to claim 1, characterized in that, The sound-absorbing body is made of sound-absorbing cotton.

3. A flow-guiding, noise-reducing, and diverting tee according to claim 2, characterized in that, A support frame is provided inside the sound-absorbing cotton, and the support frame is fixed inside the box.

4. The flow-guiding, noise-reducing, and diverting tee according to claim 1, characterized in that, The outer surface of the silencer is fitted to the inner wall of the box.

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