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Reciprocating compressors(往复式压缩机)
编辑:拉斯维加斯网站3499   发布时间:2019-07-02

A great majority of reciprocating compressors which compress the refrigerant gas only on the forwards troke of a piston are built to be single acting in a large capacity range,up to hundreds of kilowatts.(大部份往复式压缩机,仅仅依靠活塞向前运动压缩制冷剂气体,它在往被用于大容量用途,高达数百千瓦Models of these compressors may be single-cylinder or multicylinder in V,W,radial,or line form.(这些压缩机,可以是单气缸或在VW径向分布交叉分布的多气缸The power required for the compressor can be provided either directly by a motor or indirectly by a belt or a gear drive.(压缩机所需要的动力可以是直接由电动机驱动或间接由皮带齿轮传动In these compressors, cylinder clearance volume,compression ratio, amount of suction superheat, valve pressure drops, and the refrigerant-oil characteristics are the main parameters which affect their efficiencies.(在这些压缩机中,汽缸净容积压缩吸气过热度阀压降以及制冷剂-润滑油的特点是影响其效率的主要参数 The selection of cooling method is dependent on the discharge temperature.(冷却方式的选择依赖于排气温度For example, when the discharge temperature is low, as in R-134a compressors, air cooling is usually chosen.Water cooling is used where high discharge temperatures occur.(举例来说, R134a 的压缩机中,当排气温度低,通常选择空气冷却的方式,水冷却是被用在排气温度过高的场合

Note that Danfoss Maneurop hermetic reciprocating compressors are specially designed for applications with a wide range of operating conditions.Danfoss Maneurop注意到全封闭往复式压缩机是专为较宽工况范围而设计的The concept has proven its reliability and durability in low, medium and high temperature applications.(这种说法已经在低中和高的温度环境下证明了它的可靠性和耐用性Suction gas enters the compressor and cools the electrical motor.(制冷剂气体进入压缩机并且冷却电机The circular valve design and profiled piston provide for an efficient compression process.(循环阀的设计及异型活塞提供了一个有效的压缩过程Discharge gas passes through an internal muffler to eliminate gas pulsation which reduces sound level and vibration.(排出气体通过一个内部消声器,以消除气体脉动从而降低声级和振动The internal discharge line runs through the oil sump taking care of an oil temperature high enough to evaporate eventual liquid refrigerant entering the compressor.(内部排气管贯穿了整个油箱,以便油温高到足以蒸发可能进入压缩机的液态制冷剂


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