CN214406363U - Low-wind-resistance noise elimination and air exchange device for audiometric room - Google Patents
Low-wind-resistance noise elimination and air exchange device for audiometric room Download PDFInfo
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- CN214406363U CN214406363U CN202120339757.9U CN202120339757U CN214406363U CN 214406363 U CN214406363 U CN 214406363U CN 202120339757 U CN202120339757 U CN 202120339757U CN 214406363 U CN214406363 U CN 214406363U
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- air duct
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- 230000008030 elimination Effects 0.000 title description 7
- 238000003379 elimination reaction Methods 0.000 title description 7
- 239000002184 metal Substances 0.000 claims abstract description 18
- 229920000742 Cotton Polymers 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 4
- 238000012076 audiometry Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012071 hearing screening Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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Abstract
本实用新型提供的一种测听室用低风阻消声换气装置，包含内设风道的金属风管，金属风管一端设有进风口，金属风管一侧面设有出风口，进风口与出风口朝向成90度角设置，风道内设有风机组，风机组包括若干并排设置的静音型风扇，出风口上设置有弧形导流板，金属风管内壁设有吸声层。通过几个并排设置在风道上的静音型风扇向风道内送风，低噪音的同时也大大地提高了输送的风量，进风口和出风口呈90度角设置，防止噪音直接穿过风道，达到静音通风的效果，吸声层可吸收风道内的噪音，弧形导流板可调整气流输出方向，增加气流平顺度，并且可避免90度出风造成局部涡流而导致风道内通风阻力增大。
The utility model provides a low-wind-resistance sound-absorbing and ventilating device for a listening room, which comprises a metal air duct with an internal air duct, one end of the metal air duct is provided with an air inlet, one side of the metal air duct is provided with an air outlet, and the air inlet It is arranged at a 90-degree angle to the air outlet, and a fan unit is arranged in the air duct. The fan unit includes several silent fans arranged side by side. The air is supplied to the air duct through several silent fans arranged side by side on the air duct, which greatly improves the conveyed air volume while reducing noise. To achieve the effect of silent ventilation, the sound-absorbing layer can absorb the noise in the air duct, the arc-shaped deflector can adjust the airflow output direction, increase the smoothness of the airflow, and avoid the local eddy current caused by the 90-degree wind, which will increase the ventilation resistance in the air duct. .
Description
Technical Field
The utility model relates to an air regenerating device field indicates a listening room is with low windage noise elimination air regenerating device especially.
Background
Audiometry rooms are small rooms for hearing screening, and a quiet environment needs to be created, and an acoustic environment is often required to be below 30 decibels, even below 20 decibels. However, ventilation is required in the listening room, and therefore ventilation in the listening room is achieved by the fan. The common axial flow fan can meet the requirements of ventilation and air exchange, but the noise is large. The mute type fan is low in noise, but the air volume is too small, so that the ventilation requirement in the audiometric room cannot be met.
Disclosure of Invention
The utility model aims to solve the problem that a low windage noise elimination breather is provided for audiometry room, can satisfy the demand of low noise and high amount of wind simultaneously.
Solve above-mentioned technical problem according to the utility model provides a pair of audiometric room is with low windage noise elimination breather, establish the metal tuber pipe in wind channel in containing, metal tuber pipe one end runs through the air intake that is provided with and wind channel intercommunication, a metal tuber pipe side runs through the air outlet that is provided with and wind channel intercommunication, the air intake is 90 degrees angle settings with the air outlet orientation, wind channel one side fixedly connected with fan group, fan group includes a plurality of silence type fans that set up side by side, air outlet one side is provided with the arc guide plate, metal tuber pipe inner wall is provided with the sound-absorbing layer.
Preferably, the fan set further comprises a fan bracket matched with the air channel, and the mute fan is fixedly connected to the fan bracket through screws.
Preferably, the fan set comprises 3 mute-type fans, and the voltage of the mute-type fans is 12V.
Preferably, the sound absorbing layer is sound absorbing cotton.
Preferably, the air inlet is fixedly connected with a protective partition plate for closing the air inlet.
The utility model has the advantages that: the utility model provides an audiometric room is with low windage noise elimination breather, set up unique assembly structure, install this ventilator in audiometric room vent department, supply air to the wind channel in through several silence type fan that sets up on a section of wind channel side by side, can guarantee the requirement of low noise, the amount of wind of carrying has also been improved widely, air intake and air outlet are 90 degrees angle settings, prevent that the noise from directly passing the wind channel, reach the effect of silence ventilation, the noise absorber on the metal tuber pipe inner wall can effectively absorbing the noise in the wind channel, the arc guide plate that sets up streamlined design in air outlet department is with adjustment air current direction, increase the air current ride comfort of output, and can avoid 90 degrees air-out to cause local vortex and lead to the increase of ventilation resistance in the wind channel, improve wind channel through-flow efficiency. The novel air conditioner is simple in structure, can meet the use requirements of low noise and high air volume, and is suitable for popularization and use.
Drawings
Fig. 1 illustrates a bottom view of the ventilation device of the present invention.
Fig. 2 illustrates a cross-sectional view at a-a of fig. 1 according to the present invention.
Fig. 3 illustrates a cross-sectional view at B-B of fig. 1 according to the present invention.
The reference numbers illustrate: the air conditioner comprises a metal air duct 1, an air duct 10, an air inlet 2, an air outlet 3, a fan set 4, a mute type fan 5, an arc-shaped guide plate 6, a sound absorption layer 7, a fan support 8 and a protective partition plate 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments.
All other embodiments of the person skilled in the art, which are obtained without inventive work on the basis of the described embodiments of the present disclosure, are within the scope of protection of the present disclosure.
Refer to fig. 1-3.
The utility model provides an audiometry room is with low windage noise elimination breather, establish metal tuber pipe 1 of wind channel 10 in containing, 1 one end of metal tuber pipe is run through and is provided with air intake 2 with wind channel 10 intercommunication, 1 side of metal tuber pipe runs through and is provided with the air outlet 3 with wind channel 10 intercommunication, air intake 2 is 90 degrees angle settings with 3 orientation of air outlet, 10 one side fixedly connected with fan group 4 in wind channel, fan group 4 includes a plurality of silence type fans 5 that set up side by side, 3 one sides of air outlet are provided with arc guide plate 6, 1 inner wall of metal tuber pipe is provided with sound-absorbing layer 7.
The specific use principle is as follows: will the utility model discloses a breather installs in the vent department of audiometric room, through several mute type fan 5 that set up side by side on 10 sections in wind channel air supply in to wind channel 10, can guarantee the requirement of low noise, the amount of wind of carrying has also been improved widely, air intake 2 and air outlet 3 are the setting of 90 degrees angles, prevent that the noise from directly passing wind channel 10, reach the effect of mute ventilation, sound-absorbing layer 7 on the metal tuber pipe 1 inner wall can effectively absorbing the noise in the wind channel 10, set up arc guide plate 6 in order to adjust the air current direction in 3 departments of air outlet, arc guide plate 6 is streamlined design, increase the air flow level cisoid of output, and can avoid 90 degrees air-out to cause local vortex and lead to the increase of ventilation resistance in the wind channel 10, improve wind channel 10 through-flow efficiency. The novel air conditioner is simple in structure, can meet the use requirements of low noise and high air volume, and is suitable for popularization and use.
Based on above-mentioned embodiment, fan unit 4 still includes fan bracket 8 with wind channel 10 matching, and mute type fan 5 passes through screw fixed connection on fan bracket 8, and fan bracket 8 is fixed in wind channel 10, through fan bracket 8 with a plurality of mute type fans 5 side by side on a wind channel 10 cross-section, conveniently makes the location to mute type fan 5, guarantees that the air current is stable in wind channel 10, makes things convenient for whole dismouting.
Based on the above embodiment, the fan unit 4 includes 3 silent fans 5, and the voltage used by the silent fans 5 is 12V. Because too many fans are not in accordance with the requirement of the sound-proof room space, more turbulent flow is easy to generate to be not beneficial to airflow organization, and too few fans cannot meet the requirement of ventilation air volume, the mute type fans 5 are set to be 3. The air volume of 3 12V mute fans (5) can reach the air volume of 220V common fans with the same diameter, the noise superposition of the 3 12V mute fans (5) only increases 3-4 decibels, and the noise is 10 decibels less than that of the 220V common fans with the same diameter.
Based on above-mentioned embodiment, sound-absorbing layer 7 is for inhaling the sound cotton, inhales the sound cotton and has good sound absorption rate, and the sound insulating properties is good, uses to inhale the sound cotton as sound-absorbing layer 7, guarantees the low noise performance of ventilator.
Based on the above embodiment, the air inlet 2 is fixedly connected with the protective partition 9 for closing the air inlet 2, and the dust layer is reduced by the protective partition 9 to enter the air duct 10.
The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120339757.9U CN214406363U (en) | 2021-02-03 | 2021-02-03 | Low-wind-resistance noise elimination and air exchange device for audiometric room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120339757.9U CN214406363U (en) | 2021-02-03 | 2021-02-03 | Low-wind-resistance noise elimination and air exchange device for audiometric room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214406363U true CN214406363U (en) | 2021-10-15 |
Family
ID=78024438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120339757.9U Active CN214406363U (en) | 2021-02-03 | 2021-02-03 | Low-wind-resistance noise elimination and air exchange device for audiometric room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214406363U (en) |
-
2021
- 2021-02-03 CN CN202120339757.9U patent/CN214406363U/en active Active
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