Filter-silencer of vacuum installation

Abstract

Annotation Purpose. Improving the silencer of the rotary vane vacuum unit by changing the design, which will lead to reducing of noise and ensuring of waste oil collection. Methods. Analysis of the designs and working processes of technical means for noise reduction and used oil collection from vacuum pumps of milking machines. Results. There are given the description of the filter silencer design and its operation principle, as well as the results of laboratory tests of the proposed filter silencer. It provides energy reduction during servicing, significantly reduce the noise, which is generated by vacuum pump, and collect used oil while providing a lower level decreasing of vacuum pump performance compared to serial models. Conclusions. The proposed solution provides energy reduction while filter silencer servicing in comparison with existing samples, reduces generated noise of the vacuum pump to 65–76 decibels and collect used oil up to 90–96%. At the same time, the decrease in productivity of the vacuum pump due to using new filter-silencer is about 1 m3/hour and in the serial models 1.28 m3/hour. It is advisable to place filter-silencer outside the vacuum room, in this case the value of the generated noise in the room is reduced by 30%. Keywords: filter silencer, pump, vacuum, oil collection, environmental problems, pollution, noise.