Jinan ventilation pipe must be familiar to everyone, it is actually to ensure the circulation of air, but when a large number of air flow into the pipe will produce some noise, so how to reduce the noise? Do you know? Is not very clear? Next, follow the Jinan air pipe processing factory to understand it, hope to help you.
Jinan ventilation pipe
Under the same air volume and pressure, the noise of centrifugal ventilation equipment with wing blade is small, while that with forward blade is large. Low noise pipeline equipment should be selected in the situation of high noise control requirements.
In the design of ventilation system, Jinan ventilation pipeline processing plant suggests that the pressure loss of the system should be reduced as much as possible. When the total amount and pressure loss of the ventilation system are large, it can be divided into small systems; the velocity of the air flow in the pipeline should not be too high, so as not to cause regeneration noise. The velocity of air flow in the pipe should be selected according to different requirements and relevant regulations.
The detachable joints of pipes and fittings shall not be installed in the wall and corridor floor. The position of embedded parts or expansion bolts of supports, hangers and brackets shall be accurate, firm and reliable. The embedded parts shall not be painted and shall be supported for oil removal.
Properly reduce the speed of ventilation equipment. The rotating noise of ventilation equipment is proportional to the 10th power of impeller circumferential speed, and the vortex noise is proportional to the 6th power (or 5th power) of impeller circumferential speed, so reducing the rotating speed can reduce the noise
Horizontal installation: if the diameter or major side length of air duct is less than 40mm, the spacing is less than or equal to 4m; if it is greater than or equal to 400mm, the spacing is less than or equal to 3m. Vertical installation: the spacing is less than or equal to 4m, but the number of fixings for each riser shall be greater than or equal to 2.
The valve regulating Department of the air duct shall be installed at the position convenient for operation, the valve plate shall be inserted along the air flow direction, the installation position of the fire damper shall be correct, and the fusible parts shall be installed after the system is installed. The installation of all kinds of air outlets should be smooth and accurate. The transfer part shall be flexible and firmly connected with the air duct. The flexible short pipe shall be installed with proper tightness without distortion.
I believe that after reading the above methods to reduce the noise of Jinan ventilation duct, you will have a better understanding of the duct. I hope these contents can help you. If you want to know more about the details of the duct, you can pay more attention to the website dynamics. You are welcome to visit and purchase at any time.