扬程流量特性曲线的英文

• head-capacity curve

• "扬程"英文翻译    delivery head; hoisting heig ...
• "流量"英文翻译    rate of flow; flow; runoff; ...
• "特性"英文翻译    characteristic; character; p ...
• "曲线"英文翻译    curve; curved line
• "阀门流量特性曲线" 英文翻译 :    flow characteristic of valve
• "压力-流量特性曲线" 英文翻译 :    pressure-flow characteristics
• "量特性曲线" 英文翻译 :    rating curve; ratingcurve
• "容量特性曲线" 英文翻译 :    capacity characteristics curve
• "流量特性" 英文翻译 :    discharge characteristic; flow characteristics
• "安装流量特性" 英文翻译 :    installed diaphragm pressure range; installed rangeability
• "阀位流量特性" 英文翻译 :    valve position flow characteristic
• "固有流量特性" 英文翻译 :    inherent flow characteristic
• "河流流量特性" 英文翻译 :    flowage of a stream
• "快开流量特性" 英文翻译 :    quick open flow characteristic
• "流量特性偏差" 英文翻译 :    flow characteristics deriation; flow characteristics derivation
• "喷管流量特性" 英文翻译 :    metering characteristics of nozzle
• "燃料流量特性" 英文翻译 :    fuel flow characteristics
• "线性流量特性" 英文翻译 :    linear flow characteristic; lineat flow characteristic
• "s 型特性曲线" 英文翻译 :    s type characteristic
• "s型特性曲线" 英文翻译 :    s type characteristic
• "泵特性曲线" 英文翻译 :    pumcharacteristic curve; pumcurve
• "非特性曲线" 英文翻译 :    non characteristic curve
• "光特性曲线" 英文翻译 :    light characteristic
• "内特性曲线" 英文翻译 :    internal characteristic curve
• "坪特性曲线" 英文翻译 :    counting ratevoltage characteristic; plateau characteristic curve

• First super - low specific - speed centrifugal pump has a long and narrow flow passage for its high head and low capacity , and the power absorbed by disc friction is too high , so the efficiency is very low ; secondly the diffusion of flow passage is so high , that the reserved flow often emerges at the inlet and outlet of impeller . therefore the h ~ q characteristic curve is often hump - shaped , and at the low - capacity operating condition the instability often occurs ; thirdly the centrifugal pump at high - capacity operating condition is easy to overload because the n ~ q curve appears a rising trend
  首先由于它的扬程较高、流量较小，所以它的流道狭长，圆盘摩擦损失较大，效率相对较低；其次由于它的流道扩散较严重，易在叶片进口产生回流和在出口产生脱流，扬程流量特性曲线易出现驼峰，在小流量工况下易产生不稳定现象；第三，由于其功率流量曲线呈现上升趋势，在大流量区运行时电机易过载。