WQGS sewage pump malfunction analysis and elimination

包装

 

一、安装、运行、维护提示

Installation, operation and maintenance tips

●安装、搬运电泵时严禁用力提拉电缆,以免造成电缆内线断裂、接头脱接等致使泵无法正常运行,甚至烧毁电机;

●It is forbidden to pull cables with force in the installation and removal of electric pump to aovid wires breaking and joint delinking which lead to normal operation failure and even burns;

●安装时请使电泵电缆接地线正确可靠接地。电泵工作时,严禁人畜接近作业水域或触摸电泵,为了减少触电风险,只能与适当的接地插座连接;

●Please ensure correct and reliable cable earthing in the installation of electric pump. It is forbidden for humans or animals to approach operational water area or touch the electric pump when it is working. In order to reduce electric shock risks, it can only be connected with earthing plug;

●严禁过载运行;

●Overload operation is forbidden;

●与泵所配用的电缆不能小于电泵电缆面积的1.2倍

●The cables associated with pumps should not be less than 1.2 times of the electric pump area;

●安装时,电泵必须紧固,但不能使电缆受力,或随电泵启动停止时一块旋转;

●The electric pump must be fastened in the installation. But the cables can not be stressed or rotate together with the electric pump once it is started;

●运行时发现泵不出水时,应检查电泵是否反转,或电泵出水口处的止回阀以内空气没有排净;

●Once the pump does not produce water in the operation, the electric pump should be checked for any reverse rotation or the check valve at the water outlet mouth should be checked for any residual air;

●定期检查电泵电动机相间和相对地间绝缘电阻,其值应不低于2MΩ,否则应拆机检修;

●Phase-to-phase and relative ground-to-ground insulation resistance of the motor of electric pump should be inspected on a regular basis with the resistance no lower than 2MΩ. Otherwise, the equipment should be disassembled for inspection and repair;

●电泵在规定的工作条件下,正常运行半年后,应检查油室密封状况,如油室中的油呈乳化状或有水沉淀出来,应及时更换10#机油和机械密封件;

●After half a year of normal operation under stipulated working conditions, the electric pump should be checked for oil room sealing condition. Once the oil is emulsified or sedimented water comes out, 10# machine oil and mechanical seal parts should be replaced in a timely manner;

●电泵正常工作一年后,应进行一次大修,更换已磨损的易损件,并检查紧固件的状态,同时应补充更换润滑脂,保证电泵在运行过程中的良好润滑;

●One large-scale repair work should be conducted after normal operation for one year: worn parts should be replaced, fasteners should be inspected and lubricant should be supplemented and replaced to ensure excellent lubrication in the normal operation;

●电泵如不用时,请清洗干净,擦干水珠。

●Please clean the electric pump and wipe out beads if not in use.

故障分析和排除

MALFUNCTION ANALYSIS AND ELIMINATION

 

 

 

故障现象
malfunction
原因分析
cause analysis
排除方法
elimination methods
流量不足或不出水
inadequate flow orno water
1.叶轮的旋向错误
mistaken blade item
调换电源线任两根相序即可
adjust any two phase sequence of the power circuits
2.出口阀门是否打开和完好
openness and completeness of outlet valve
检查阀门
inspect valve
3.阀门和泵之间的管道内有空气未排,导致阀门打不开
left air in the pipes between valve and pump makes it difficult to open the valve
排出管道内空气
discharge air in the pipes
4.转速太低
too low rotation speed
检查电源电压是否过低
check the power supply for voltage degree
5.密封环磨损过大
excessive seal ring abrasion
更换
replace
6.抽送液体的密度较大或粘度较高
high density or viscosity in the liquid
改变抽送液体的密度和粘度
change the density and viscosity of liquid
7.管道和叶轮堵塞
pipe and blade blockage
清理管道和叶轮堵塞物
eliminate obstacles in the pipes and blades
电泵运行不稳定
unstable electric pump
operation
1.叶轮不平衡
blade imbalance
更换或进行叶轮动平衡
replace or operate wheel balancing
2.轴承损坏
bearing damage
更换
replace
3.过载运行
overload operation
调节阀门使电泵不过载
adjust valve to avoid electric pump overload
4.安装倾斜不正
sliding installation
重新安装
installation again
绝缘电阻低
low insulation resistance
1.电缆线电源线接线端渗漏
leakage in the wiring end of cable and power circuits
拧紧压紧螺母
fasten and press nuts tightly
2.电缆线破损或从头部进水
cable wires damage or water entering from head
更换
replace
3.机械密封磨损
mechanical seal abrasion
更换
replace
4.O型密封圈老化失效
O-shaped seal ring aging and failure
更换
replace
电流过大
excessive current
1.工作电压低
low working voltage
调整工作电压
adjust working voltage
2.叶轮被堵或卡
blade blockage or stuck-up
清理管道和液里堵塞物
clean obstacles in the pipes and liquid
3.抽送液体的密度较大或粘度较高
high density or viscosity in the liquid
改变抽送液体的密度和粘度
change the density and viscosity of liquid
4.阀门开度过大
excessive valve openness
调节阀门开度
adjust valve openness

Post time: Apr-12-2019
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