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一、前 言 往复式压缩机大体分为压缩空气和其他气体两种。后者中,压缩氟里昂等制冷剂的冷冻用压缩机为最多。压缩碳化氢、城市煤气等多种气体的化学工业用为其次。通常,这类气体压缩机,其气体通道为全封闭式;气体的吸排气噪声被遮断,但机器的运转噪声反而大。通用空气压缩机作为工厂的动力源正广泛在应用,它的吸气流体噪声最大,一般需要设置消音器。
I. Introduction Reciprocating compressors are generally divided into two kinds of compressed air and other gases. In the latter, the compressor for compressing a refrigerant | coolant, such as a freon, has the largest number of compressors for freezing. Compression of hydrocarbon, city gas and other gases for the chemical industry as the second. Usually, this type of gas compressor, the gas channel is fully enclosed; gas intake and exhaust noise is blocked, but the operation of the machine instead of large noise. General-purpose air compressor is widely used as the power source of the factory. Its suction fluid has the largest noise and generally needs to be equipped with silencer.