I. Is the high-pressure blower noisy?
The high-pressure blower is a kind of industrial mechanical equipment. It has a certain amount of noise. Is the high-pressure blower noisy?
Generally speaking, the noise of the high-pressure blower mainly comes from the wind noise. The sound of the motor itself is not much when it is running, and the air inlet and outlet of the high-pressure blower itself have been installed with sound-absorbing sponge, which has been reduced to some extent. , The high-pressure fan produced by regular manufacturers, its noise is within the allowable range of national standards.
In addition, the pressure of the high-pressure fan is different, the power is different, and the noise level will be different. Generally, the higher the wind pressure, the greater the noise of the high-pressure fan, and the noise reduction measures that need to be taken should be paid more attention. .
Second, the noise source of the high-pressure fan
There are many reasons for the noise of the high-pressure fan, and there are three main sources of noise:
1. Noise generated by blade rotation
When the blade rotates, it will rub or impact with the air. The faster the rotation speed, the sharper the noise, and the width and thickness of the blade will also affect to the size of the noise.
2. Noise will be generated when the blades generate eddy currents
During the operation of the high-pressure fan, eddy currents will be generated on the back of the moving blades, which will not only reduce the fan’s efficiency and noise.
3. Noise caused by turbulent flow
When the air is flowing, if it encounters a sharp obstacle, turbulence will easily occur. Eddy currents are different, but also produce noise.
Third, how can the high-pressure fan have a good noise reduction effect
The noise of the high-pressure fan will affect the working environment. The main ways to silence the fan are:
1. Install a silencer
Install a special silencer for the fan at the inlet and outlet of the high-pressure fan to reduce noise. There is high-density sound-absorbing cotton in the device, which can effectively reduce the noise of the high-pressure fan.
2. Install a sound-absorbing box
The sound-absorbing box is used to reduce noise, which can isolate most of the noise, but it is necessary to pay attention to the ventilation and heat dissipation of the air , If necessary, two axial fans can be installed to help the circulation and exchange of air.
3. Add PVC hose
Install a piece of hose at the inlet or outlet, and lead the end to the outside, which can connect the high-pressure fan wind noise reduction.
