1 Install muffler
The main noise sources are the air intake and exhaust ports, and appropriate air intake and exhaust silencers should be selected. The intake noise spectrum of air compressor presents low frequency characteristics, and the intake muffler should adopt resistance structure or impedance composite structure with individual resistance as the main factor. The air compressor has high exhaust pressure and fast airflow speed, so a small hole muffler should be used at the outlet of the air compressor.
2, set up the muffler tunnel
An underground or semi-underground tunnel, the wall of which is made of bricks with good sound absorption performance. Connect the air inlet pipe of the air compressor with the silencing tunnel, so that air can enter the air compressor through the silencing tunnel. The use of muffler tunnel can greatly reduce the intake noise of air compressor and prolong the service life of muffler.
3, the establishment of sound insulation cover
After installing silencers or silencing tunnels at the air inlet and outlet of the air compressor, the airflow noise can be reduced to below 80db(a), but the mechanical noise and motor noise of the air compressor are still high, so a sound insulation cover should be installed on the air compressor unit.
4. Suspended spatial sound absorber
In Foshan Linggefeng air compressor station, the tall and empty factory building echoes heavily. If the sound absorber is hung on the ceiling of the workshop, the noise of the workshop can be reduced by 3- 10db(a), and the reverberation time can be reduced by 5- 10s.
Daily maintenance items of air compressor:
1. Please read the attached instructions for use and maintenance carefully and carry out corresponding maintenance.
2. Replace the three filters (air filter, oil filter and oil-gas separator) in strict accordance with regulations. The replacement cycle should be carried out according to the requirements of the manual.
3. During operation, always check whether the oil level in the oil tank is in the normal position in the oil mirror.
Daily maintenance project
1, check the empty filter element and coolant level.
2. Check the hoses and all pipe joints for leaks.
3. Check the records. If consumables have reached the replacement cycle, they must be stopped and replaced.
4. Check the records. When the exhaust temperature of the main engine reaches or approaches 98 degrees, the oil cooler must be cleaned.
5, check the condensate discharge, if found that the displacement is too small or no condensate discharge, must stop cleaning water separator.
Monthly maintenance project
1. Check the surface of the oil cooler and clean it if necessary.
2. Clean the aftercooler.
3. Check all wire connections and fasten them.
4, clean the dust on the surface of the motor suction and shell.
5. Clean the oil return filter.
Refer to the above content: Baidu Encyclopedia-Air Compressor