CP-563D, CS-563D, CS-573D and CS-583D Vibratory Compactors Vibratory System Caterpillar


Piston Pump Flow - Test

Usage:

CS-563D 1SZ
这项测试用于确定泵是否在其设计参数范围内工作。

对于任何泵测试,如果泵在相同转速下运行,在压力为 690 kPa (100 psi) 时的泵流量比在压力为 6900 kPa (1000 psi) 时的流量要大。 泵流量的测量单位是 L/min(US gpm)。

两个工作压力下泵流量的差值即为流量损失。




图 1g00985370



图 2g00985371

流量损失以泵流量的百分比来表示,用于测量泵的性能。




图 3g00985372



图 4g00985374

如果流量损失的百分比超过 10%,说明泵的性能不足。

注: 示例中的数值并非任一特定泵或泵工作条件的设定值。 有关新泵在 690 kPa (100 psi) 和 6900 kPa (1000 psi) 时的泵流量,请参阅相关机器的说明书

机器测试

安装流量计。 以高怠速运转发动机。 测量 690 kPa (100 psi) 和 6900 kPa (1000 psi) 下的泵流量。 把这些数值应用到以下公式中。




图 5g00985375

台架测试

如果台架测试可以在 6900 kPa (1000 psi) 和泵的最大转速下执行,则利用以上公式确定流量损失百分比。

如果不能在 6900 kPa (1000 psi)或泵的全转速下进行试验台测试,则以 1000 rpm 的转速运转泵轴。 测量 690 kPa (100 psi) 和 6900 kPa (1000 psi) 下的泵流量。 将这些数值应用于以下公式的上半部分中。 对于公式的下半部分,以 2000 rpm 的转速运转泵轴。 测量 690 kPa (100 psi) 时的泵流量。




图 6g00985376

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