REXROTH泵A10V系列北京代表处现货
REXROTH泵在化工和石油部门的生产中,原料、半成品和成品大多是液体,而将原料制成半成品和成品,REXROTH泵需要经过复杂的工艺过程,泵在这些过程中起到了输送液体和提供化学反应的压力流量的作用,此外,在很多装置中还用泵来调节温度。
在农业生产中,泵是主要的排灌机械。REXROTH泵,每年农村都需要大量的泵,一般来说农用泵占泵产量一半以上。
在矿业和冶金工业中,泵也是使用多的设备。矿井需要用泵排水,在选矿、冶炼和轧制过程中,需用泵来供水等。
在电力部门,核电站需要核主泵、二级泵、三级泵、热电厂需要大量的锅炉给水泵、冷凝水泵、油气混输泵、循环水泵和灰渣泵等。
REXROTH泵在建设中,飞机襟翼、尾舵和起落架的调节、军舰和坦克炮塔的转动、REXROTH泵潜艇的沉浮等都需要用泵。高压和有放射性的液体,有的还要求泵无任何泄漏等。
之,无论是飞机、火箭、坦克、潜艇、还是钻井、采矿、火车、船舶,或者是日常的生活,到处都需要用泵,到处都有泵在运行。正是这样,所以把泵列为通用机械,它是机械工业中的一类主要产品。
电动泵,即用电驱动的泵。电动泵是由泵体、扬水管、泵座、潜水电机(包括电缆)和起动保护装置等组成。泵体是潜水泵的工作部件,它由进水管、导流壳、逆止阀、泵轴和叶轮等零部件组成。叶轮在轴上的固定有两种方式。
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▶系列 52、53
▶规格 10...100REXROTH泵A10V系列北京代表处现货
REXROTH泵主要有流量和扬程,此外还有轴功率、转速和必需汽蚀余量。流量是指单位时间内通过泵出口输出的液体量,一般采用体积流量;扬程是单位重量输送液体从泵入口至出口的能量增量 ,对于容积式泵,能量增量主要体现在压力能增加上,所以通常以压力增量代替扬程来表示。泵的效率不是一个独立性能参数,它可以由别的性能参数例如流量、扬程和轴功率按公式计算求得。REXROTH泵反之,已知流量、扬程和效率,也可求出轴功率。
四种泵的性能曲线泵的各个性能参数之间存在着一定的相互依赖变化关系,可以通过对泵进行试验,REXROTH泵分别测得和算出参数值,并画成曲线来表示,这些曲线称为泵的特性曲线。每一台泵都有特定的特性曲线,由泵制造厂提供。通常在工厂给出的特性曲线上还标明使用的性能区段,称为该泵的工作范围。
泵的实际工作点由泵的曲线与泵的装置特性曲线的交点来确定。REXROTH泵选择和使用泵,应使泵的工作点落在工作范围内,以保证运转经济性和安全。此外,同一台泵输送粘度不同的液体时,其特性曲线也会改变。通常,泵制造厂所给的特性曲线大多是指输送清洁冷水时的特性曲线。对于动力式泵,随着液体粘度增大,扬程和效率降低,轴功率增大,REXROTH泵所以工业上有时将粘度大的液体加热使粘性变小,以提高输送效率。
REXROTH泵A10V系列北京代表处现货
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