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["로프포프의 압력,流量和转速大致有关联,一般螺杆泵都有转速和流量的额定值

2019-02-18View Original

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本帖最后由 33835 36363_PPPZ 于 2ZZ--Z8 15: 编辑 是的,螺杆泵的流量几乎是恒定的,与出口压力无关
Reply #22019-02-18
�螺杆泵是容积式泵Z出口压力由背压决定Z只要功率和管路、设备压力允许,可以持续升高。直至安全阀起跳
Reply #32019-02-18
"螺杆泵如果不考虑电机功率,是否么压力可以持续升高?出口流量是稳定的Z不可调的"Z � erfolgreich
Reply #42019-02-18
螺杆泵是容积式泵,出口压力由背压决定,只要功率和管路、设备压力允许,可以持续升高。直至安全阀起跳
Reply #52019-02-18
“螺杆泵如果不考虑电机功率,是否压力可以持续升高?出口流量是稳定的,不可调的?” 首先,电机功率的大小与转速是两回事。大功率不等于高转速。所以,如果出口压力高到一定程度,电机会因过电流跳闸断电,或者被烧毁的。出口流量可以通过部分回流调节的。因为这类泵属于容积式,液体压缩系数很小,一旦流量受影响,压力就会升高超压的。

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