A11VLO190EP2D/11R-NZD12N00P油泵河北石家庄柱塞泵的工作原理
柱塞泵是液压系统的一个重要装置。它依靠柱塞在缸体中往复运动,使密封工作容腔的容积发生变化来实现吸油、压油。柱塞泵具有额定压力高、结构紧凑、效率高和流量调节方便等优点,被广泛应用于高压、大流量和流量需要调节的场合,诸如液压机、工程机械和船舶中。
柱塞泵是往复泵的一种,属于体积泵,其柱塞靠泵轴的偏心转动驱动,往复运动,其吸入和排出阀都是单向阀。当柱塞外拉时,工作室内压力降低,出口阀关闭,低于进口压力时,进口阀打开,液体进入;柱塞内推时,工作室压力升高,进口阀关闭,高于出口压力时,出口阀打开,液体排出。当传动轴带动缸体旋转时,斜盘将柱塞从缸体中拉出或推回,完成吸排油。
A11VLO190EP2D/11R-NZD12N00P油泵河北石家庄河北石家庄A11VLO190EP2D/11R-NZD12N00P
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A11VO40LRS/10R-NSC12N00
A11VO40LRS/10R-NPC12N00
A11VO40LRH2/10R-NSC12N00
A11VO40LRH2/10R-NPC12N00
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A11VO130LRS/10R-NPD12N00
HSN三螺杆泵选型步骤及注意事项首先要准确了解HSN三螺杆泵的实际工作参数,如压力、流量、介质的工作温度及介质在工作温度下的粘度、介质有无润滑性、腐蚀性等;根据介质在工作温度下的粘度初步选择泵的转速,一般粘度小于3mm2/s,选择n=145r/min比较适合,当粘度大于3mm2/s,请慎重考虑泵的必需汽蚀余量,以免泵产生振动;从泵的性能表上,按所需流量、压力等参数初步选择泵的规格;从泵的必需汽蚀表(P15)上,根据泵的规格、转速、粘度查出泵的必需汽蚀余量NPSHr值;如果泵的必需汽蚀余量NPSHr值小于管道装置的汽蚀余量NPSHa值,那么泵选型正确;如果泵的必需汽蚀余量NPSHr值大于管道装置的汽蚀余量NPSHa值,则要选择大一档的泵或是降低转速,并重新校合NPSHr值。
以上型号不全~可咨询~