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水泵常见故障分析及处理方法

(2009-04-11 09:21:27)
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杂谈

不同类型的水泵,其故障的表现形式不一样,但概括起来,有以下几个共同特点。
  (1)流量不足
  产生原因:影响水泵流量不足多是吸水管漏气、底阀漏气;进水口堵塞;底阀入水深度不足;水泵转速太低;密封环或叶轮磨损过大;吸水高度超标等。
  处理方法:检查吸水管与底阀,堵住漏气源;清理进水口处的淤泥或堵塞物;底阀入水深度必须大于进水管直径的1.5倍,加大底阀入水深度;检查电源电压,
  提高水泵转速,更换密封环或叶轮;降低水泵的安装位置,或更换高扬程水泵。
  (2)功率消耗过大
  产生原因:水泵转速太高;水泵主轴弯曲或水泵主轴与电机主轴不同心或不平行;选用水泵扬程不合适;水泵吸入泥沙或有堵塞物;电机滚珠轴承损坏等。
  处理方法:检查电路电压,降低水泵转速;矫正水泵主轴或调整水泵与电机的相对位置;选用合适扬程的水泵;清理泥沙或堵塞物;更换电机的滚珠轴承。
  (3)泵体剧烈振动或产生噪音
  产生原因:水泵安装不牢或水泵安装过高;电机滚珠轴承损坏;水泵主轴弯曲或与电机主轴不同心、不平行等。
  处理方法:装稳水泵或降低水泵的安装高度;更换电机滚珠轴承;矫正弯曲的水泵主轴或调整好水泵与电机的相对位置。
  (4)传动轴或电机轴承过热
  产生原因:缺少润滑油或轴承破裂等。
  处理方法:加注润滑油或更换轴承。
  (5)水泵不出水
  产生原因:泵体和吸水管没灌满引水;动水位低于水泵滤水管;吸水管破裂等。
  处理方法:排除底阀故障,灌满引水;降低水泵的安装位置,使滤水管在动水位之下,或等动水位升过滤水管再抽水;修补或更换吸水管。

Different types of pumps, their fault not the same as the manifestations, but can be summarized as the following common characteristics.
(1) flow less than
Reasons: lack of impact of water flow is the water pipe leaks and more, at the end of valve leakage; plug intake; the end of valve into the water deep enough; pump speed is too low; seal wear ring or impeller is too large; absorbent such as a high standard.
Approach: at the end of check valve and water pipe, blocked the leak source; clean up the sludge intake or blockage Department objects; water depth at the end of valve inlet diameter must be greater than 1.5 times the increase in water depth at the end of valve; check the power supply voltage,
Increase the pump speed or impeller replacement seal ring; the installation of pumps to reduce or replace the high-lift pumps.
(2) power consumption is too large
Cause: Pump speed is too high; pump or pump winding spindle axis and spindle motors of different cardiac or non-parallel; inappropriate choice of pump head; water or inhalation of sand plug objects; electrical damage, such as ball bearings.
Approach: to check the circuit voltage, reducing pump speed; correction or adjust the water pump spindle and the relative position of the motor; appropriate choice of pump head; clean-up or blockage of sediment materials; the replacement of ball bearing motor.
(3) intense pump body vibration or noise
Cause: Pump is not strong or the installation of water pumps installed too high; motor ball bearings damage; pump motor spindle axis bending or different heart, and other non-parallel.
Approach: steady pump installed or the installation of pumps to reduce high; the replacement of ball bearing motor; correction winding spindle or pump well water pump and motor to adjust the relative position.
(4) motor drive shaft or bearing overheating
Reasons: lack of lubrication or bearing breakdowns.
Approach: add or replace the bearing lubricant.
(5) can not pump water
Causes: pump body and suction tube not filled with water; water pumps moving the water level lower than the tube; water pipe rupture.
Approach: rule out the possibility at the end of valve failure, filled with water; lower pump installation, and make the water pipes under the water level in the dynamic, or moving water, such as water pipes or filters and then pumping; repair or replacement of water pipes.

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