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2019-12-09View Original

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型号:HZ200-150-315,流量:400,扬程:32,功率:75kw,转速:1450,四川自贡工业泵有限公司。介质:100℃左右浓盐水 泵选型偏大,出口阀门开度在三分之一左右,实际所需流量在210m3左右。 现场运行中发现蜗壳杂音很大,(噼里啪啦的声音),类似汽蚀的声音。检查叶轮,轴,未见损伤,出口阀门开大些,此声音可以减少,直至消失。 求问:这种声音来源何处?有无后患?有没有好的解决方案? 感谢各位。
Reply #22019-12-09
开泵前都已排气,开机时都有取样,可以排除此可能性
Reply #32019-12-09
一般如果是气蚀,阀门开大,声音不会消失。而如果排气未完,则阀门开大,气排出,声音减轻。有死角
Reply #42019-12-10
还是汽蚀,建议把回流阀门开大一点,出口阀开大,运行会平稳一点。
Reply #52019-12-10
这个位置是不是流量曲线的驼峰位置,查看准确的性能曲线
Reply #62019-12-11
杂音大时,出口压力是多少?

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