Noise reduction and energy saving piston compressor

Abstract

The invention discloses a noise reduction and energy conservation piston type compressor. The noise reduction and energy conservation piston type compressor comprises a cylinder seat, a cylinder cover and a coiled pipe. An exhaust cavity is formed between the cylinder seat and the cylinder cover. The noise reduction and energy conservation piston type compressor further comprises a set of silencers. Each silencer comprises a silencing cavity and a silencing cover arranged on the silencing cavity; and the silencing cavities are integrated on the cylinder seat. The silencers include the first silencer, the second silencer, the third silencer and the fourth silencer. The silencing cavity of the first silencer is communicated with the exhaust cavity. The silencing cavities of the first silencer, the second silencer, the third silencer and the fourth silencer are sequentially communicated. The silencing cavity of the second silencer or the third silencer or the fourth silencer is communicated with the coiled pipe. Four-stage silencing or three-stage silencing or two-stage silencing can be achieved through the silencers. According to the piston type compressor, silencing and shock absorbing are conducted through multi-stage silencing, good silencing and vibration absorbing effects are achieved, the silencing cavities are integrated on the cylinder seat, and the structure is simple.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a noise-reducing and energy-saving piston compressor. Background technique [0002] In order to reduce noise, existing piston compressors often install a muffler on the cylinder block or exhaust pipe to form a single-stage muffler; the biggest disadvantage of a single-stage muffler is that when kl=nπ, the transmission loss is always reduced to zero, that is There are many passing frequencies, at which the noise reduction loss of the muffler is 0, and there is no noise reduction effect at all. Although a Helmholtz exhaust resonance cavity is added to the cylinder block, because the characteristic of the Helmholtz exhaust cavity is to absorb Low-frequency noise and strong selectivity to low-frequency frequencies. Therefore, even if the Helmholtz exhaust chamber is added to the opposite side, the noise reduction frequency is extremely limited. Adding a separate muffler has a co...

AI Technical Summary

Problems solved by technology

[0002] In order to reduce noise, existing piston compressors often install a muffler on the cylinder block or exhaust pipe to form a single-stage muffler; the biggest disadvantage of a single-stage muffler is that when kl=nπ, the transmission loss is always reduced to zero, that is There are many passing frequencies, at which the noise reduction loss of the muffler is 0, and there is no noise reduction effect at all. Although a Helmholtz exhaust resonance cavity is added to the cylinder block, because the characteristic of the Helmholtz exhaust cavity is to absorb Low-frequency noise and strong selectivity to low-frequency frequencies. Therefore, even if the Helmholtz exhaust chamber is added to the opposite side, the noise reduction frequency is extremely limited.

A separate muffler is added, the structure is complex, and it is difficult to achieve a good noise reduction and vibration reduction effect

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