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Fresh air ventilator and noise reduction method thereof

A new fan and blower technology, applied in heating methods, ventilation systems, mechanical equipment, etc., can solve problems such as poor noise reduction effect, and achieve the effect of improving comfort, noise reduction effect and accuracy

Pending Publication Date: 2022-03-11
JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the noise problem of fresh air blowers mentioned above, the existing technology usually adopts passive noise reduction measures such as reducing equipment vibration or adding noise-absorbing cotton, but the noise reduction effect of such measures is poor, so there is an urgent need for a fresh air blower noise reduction method to improve the noise reduction effect

Method used

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  • Fresh air ventilator and noise reduction method thereof
  • Fresh air ventilator and noise reduction method thereof
  • Fresh air ventilator and noise reduction method thereof

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...

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PUM

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Abstract

The invention belongs to the technical field of fresh air noise reduction, and discloses a fresh air ventilator and a noise reduction method thereof.The fresh air ventilator comprises a ventilator set which comprises at least two fans; the rotating speed sensors are arranged at all the fans; the first noise detection device is arranged at the main fan and used for collecting first noise generated when the main fan runs; the second noise detection devices are arranged at the positions of other fans and used for collecting second noise generated when the other fans operate; the controller is used for receiving data of the first noise and the second noise and adjusting the rotating speed of the draught fan according to the first noise and the second noise so that the frequency, collected after adjustment, of the first noise can be the same as the frequency, collected after adjustment, of the second noise, and the amplitude of the noise generated by the fresh air ventilator can be within a preset amplitude range. The noise of the fresh air machine can be effectively reduced, and the noise reduction effect is better.

Description

technical field [0001] The invention relates to the technical field of fresh air noise reduction, in particular to a fresh air fan and a noise reduction method thereof. Background technique [0002] The fresh air fan is a kind of air purification equipment, which can circulate the indoor air. On the one hand, the indoor dirty air is discharged outside, and on the other hand, the outdoor oxygen-enriched air is sent into the room through sterilization, disinfection, filtration and other measures. Noise is generated during the operation of the fresh air fan, which reduces the user experience, especially at night and in low-noise environments. The noise sources of the fresh air fan are mainly: the noise generated by the structural vibration caused by the high-speed rotation of the fan; the turbulence generated by the high-speed flow of gas inside the body and the noise generated by the air duct. [0003] Aiming at the noise problem of the fresh air blower mentioned above, the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F7/007F24F11/64F24F11/77F24F11/89F24F13/24F24F130/40
CPCF24F7/007F24F11/89F24F11/77F24F11/64F24F13/24F24F2130/40Y02B30/70
Inventor 齐丛亮吴傲立
Owner JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENG