在线观看精品国产网站免费,欧美一级日韩视频在线观看,亚洲不卡AV不卡一区二区,免费国产一级不卡日

In our daily life, a lot of equipment will produce noise, but a lot of low decibel noise can only be ignored by our brain, and the rest of high decibel noise will affect our mood, for example, in our pig industry, in the pig equipment of FRP fan, in the long-term use, after dust, rain and other external factors Under the torture of element, FRP fan may produce certain noise, so how to deal with these noise?
First of all, we should understand the reason for the noise of FRP fan. When the blade rotates, it will conflict with the air or impact. When the blade rotates, it will conflict with the air attack or impact. The faster the rotating speed is, the higher the air frequency is, the sharper the noise is. The faster the rotating speed is, the higher the frequency of connecting air is, the more sharp the noise is. When the width or thickness of the blade increases, the phenomenon becomes more significant. During the operation of the fan, there will be eddy current on the back of its moving wing, which will not only reduce the power of the fan, but also produce a lot of noise. In order to reduce this phenomenon, the installation angle of the blades shall not be too large, and the twists and turns of the blades shall be smooth, and the sudden changes shall not be too large. The joint of the inner surface of the air duct and the fan shell shall be flat to prevent rough and uneven, and form tearing sound. Therefore, the joint of the inner surface of the air duct and the fan shell shall be flat as far as possible to prevent rough and uneven, and form tearing sound. And because the continuous pipeline will have resonance, the fine sound will become larger, forming greater noise. In the design, sometimes anti noise data can be added outside the air duct, so as to reduce the noise. When the air is moving, if it encounters sharp obstacles in use, it is easy to have turbulence. Although this kind of turbulence is different from eddy current, it will also produce noise, or high frequency squeal, which will also cause power loss for fans.
For the FRP fans that generate noise, the internal parts are often worn or need to be maintained. We can contact the pig equipment manufacturer to maintain the FRP fans, which can reduce the noise.