|
故 障 |
原 因 |
消除方法 |
|
泵不吸水，壓力表及真空表指針劇烈跳動 |
注入泵的水不夠；進水管漏氣 |
再往泵內(nèi)注水；堵塞漏氣處 |
|
泵不吸水 |
底閥沒打開或淤塞 |
校平或更換底閥；清洗或更換吸水管 |
|
泵不出水，壓力表顯示有壓力 |
泵軸旋轉(zhuǎn)方向不對 |
改正轉(zhuǎn)向；減少水管長度或清除淤塞；清洗葉輪；增加轉(zhuǎn)速 |
|
泵流量減少或揚程下降 |
葉輪或管路阻塞；密封環(huán)或葉輪磨損嚴重 |
清洗葉輪或管路 |
|
泵消耗的功率過大。 |
填料壓得太緊；葉輪與雙吸密封環(huán)磨擦；流量過大。 |
擰松填料壓蓋；消除機械磨擦；關小出水閘閥。 |
|
泵內(nèi)聲音反常，吸不上水。 |
吸水高度過高；吸水管漏氣；流量過大；發(fā)生汽蝕。 |
減少吸水高度；堵塞漏氣處；調(diào)節(jié)出水閘閥在規(guī)定工況用。 |
|
泵振動厲害。 |
泵發(fā)生汽蝕；葉輪不平衡；泵與電機不同心；地腳螺栓松動。 |
消除汽蝕；葉輪校平衡；校泵與電機的同軸度；擰緊地腳螺栓。 |
|
軸承過熱。 |
潤滑油不足或過多，或變質(zhì)；泵與電機軸不同心。 |
檢查油量，清洗軸承并換油；校泵軸與電機的同軸度。 |
|
Troubles |
Cause |
Remedies |
|
After the pump starting，no water i s drawn in. and the hands of、racuunl gauge and manometer beat heavily． |
The water poured in
the pmnp is not enough． Leakage of air is
found from the suction pipe． |
Pour water into the
pump again． Block the leaking
place． |
|
The pump doesn’t
draw any water but a high degree vacuum is indicated on the vacuum gauge |
The foot valve is
not opened． The resistance of
suction is too high． The suetion head is
too high． |
Correct or renew
the foot valves． Clean or renew the
suction pipe． Make the suction
head lower． |
|
No water is pumped
out．But high pressure is shown on the outlet nlanonleter． |
The direction of
the rotation is not right． The suction
resistance is too high． The impeller flow
passage is clogged． The revolutions is
not enough． |
Change the
direction of the rotation． Check the length of
the pipe． Clean the impeller． Increase the
revolutions． |
|
Tile flow rate is
decreasing or the laead is low． |
The impeller flow
passage or(inlet pipe and outlet pipe)in-out-let pipes are clogged． The seal ring and
the impeller is worn out． The running speed
of the pump is lower than the rated． |
Clean tile impeller
and the pipe passage way． Renew the worn
parts． Increase the
revolutions． |
|
Over consumption of
the pump power. |
Packing is too
tight The impeller is rubbed by double
suction seal ring． The flow rate is
too large． |
Loosen the packing
gland． Clear out the mechanic
friction． Turn the discharge
valve brake smaller． |
|
Unexpected noises
are heard and 110 water is drawn． |
The suction
resistance is too high． The suction head is
too high． Leakage of air
found from the suction pipe． Error is found． |
Check the pipe and
the foot valve． Make the suction head
lower． Block the leaking
place． Adjust the use of
discharge breake valve in specific working condition． |
|
The pump vibrates
heavily． |
Error is found． The impeller is not
balance． Tile pump shaft is
not concentric with the motor. The nuts of
foundation are loose． |
Clear out the error． Correct impeller
static balance． Screw the nuts of
the foot bolt tightly． Correct tile
coaxial degree between pump and motor shaft． |
|
The beating is
overheated． |
The grease is not enough
or too much or goes bad． The pump and the
motor shaft is not concentric． |
Clean the bearing
and renew the oil． Correct the pump
and the motor shaft coaxial degree． |