language
English
ChineseCar air compressor parts are sometimes used for too long and some noises will occur. The working environment is not good if the sound insulation effect is not good. In place, there will be such problems, and we will analyze these problems: high-frequency intake noise can be handled with a simple absorption muffler.
These mufflers have a perforated tube that goes straight through a fiber-medium-filled housing. You can also use a fiberglass muffler on your car for sound isolation. Absorptive mufflers cause a low pressure drop and can be installed at a filtered air intake if low pressure air is delivered from a remote source. Filter manufacturers can offer a number of combined filter and muffler products.
Absorptive mufflers are used for high-frequency noise, and expansion tank mufflers or hang-type mufflers are considered for low-frequency noise. Low frequency noise at the inlet can be handled with an expansion tank muffler, but this will cause a larger pressure drop. Two or more empty tanks in an expansion tank or resistant muffler are connected by a short length of perforated pipe, which is similar in design to a standard automatic muffler.
The inlet and outlet noise of centrifugal compressors can be treated similarly, but positive displacement compressors require pulsation control. Both exhaust lines can be fitted with in-line mufflers and pulsation suppressors. The exhaust gas is generally discharged directly into the atmosphere, and its nozzle effect will cause high-frequency noise. A simple and economical air diffuser can be installed at the exhaust outlet to attenuate shear forces between fast-flowing gases and low-velocity ambient air. Motor noise varies with motor type.
If compressor temperature is not a problem, noise radiated from the compressor casing or body can be suppressed with a sound barrier enclosure. This cover can be machined from a sound barrier diaphragm in loaded vinyl or gasket.
Note that the openings for the connected tubing and conduits are kept close to the tubing wall. If a noise cover is not suitable, the compressor can be fenced, sometimes called a socket. This fence should be machined from a sturdy material, such as sheet metal or plywood, and then affixed with acoustic absorbing material inside. Access doors should be gasketed to seal the fence, but pockets made for small compressors should be able to be lifted. The entire compressor or compressor motor assembly should be enclosed if possible. Fence openings should fit snugly against penetrations to limit noise leakage. Openings are best fitted with gaskets, while pipes and conduits can be filled with a permanent elastic sealant. The enclosure has the potential to vibrate and radiate noise, so a curved enclosure is better than a straight one, because a curved, hard arc is less likely to vibrate.
Tel:86-574-62678766
E-mail:bzheng22@163.com
