Generally, the air inlet can be led outdoors, and then the muffler can be installed. Due to the low frequency characteristics of intake noise, impedance compound muffler, micro-perforated plate compound muffler and venturi muffler are generally installed.
2, completes the air compressor shock absorption:
The air compressor vibrates a lot, so it is usually necessary to reduce the vibration of the frame. According to the weight and vibration frequency of air compressor, shock absorption design and shock absorption product selection are carried out. Due to the pressure pulsation of the exhaust gas, the pipeline from the exhaust gas of the air compressor to the gas storage tank vibrates and radiates noise. It will not only cause fatigue damage of pipelines and supports, but also affect the surrounding environment. Therefore, it is necessary to take vibration and noise reduction measures for pipelines. Common methods, such as installing an orifice plate in the exhaust pipe to avoid vibration of the pipe length, etc.
3, noise control air compressor installation noise cover:
When the environmental noise requirements are high, it is often impossible to reduce the noise of the air compressor only by installing a muffler at the air inlet. It is also necessary to deal with the noise emitted by the housing and mechanical parts. It is an effective measure to install sound insulation cover in the whole unit to control this noise. The design of sound insulation cover should ensure its tightness in order to obtain good sound insulation effect. In order to facilitate maintenance, disassembly and assembly, the sound insulation cover can be designed to be detachable, with access doors and observation windows. At the same time, the heat dissipation of the unit should be considered, and silencers should be installed at the air inlet and air outlet.
4. Noise control of gasholder;
The air compressor continuously delivers compressed gas to the gas storage tank, and the compressed air in the tank generates exciting vibration with strong noise under the action of airflow pulsation, and at the same time excites the shell to vibrate and radiate noise. In addition to sound insulation, this kind of noise can also be suspended in the gas storage tank, and the formation of standing waves in the tank can be hindered by the sound absorption function of the sound absorber, so as to achieve the purpose of sound absorption and noise reduction.
5. Comprehensive noise control of air compressor station;
Many enterprises usually have multiple compressors for production, so there are air compressor stations. The compressor is noisy. If a muffler is installed at the air inlet of each air compressor, not only the workload is large, but also the investment is large. Therefore, noise reduction measures such as sound absorption, sound insulation and sound insulation room can be taken in the station.