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(dòng)。 |
注入泵的水不夠;進(jìn)水管漏氣。 |
再往泵內(nèi)注水;堵塞漏氣處。 |
泵不吸水,但真空表顯示高度真空。 |
底閥沒(méi)打開(kāi)或淤塞;吸水管阻力太大:吸水高度太高。 |
校平或更換底閥;清洗或更換吸水管;降低吸水高度。 |
泵不出水,壓力表顯示有壓力。 |
泵軸旋轉(zhuǎn)方向不對(duì);出水管阻力太大;葉輪淤塞;轉(zhuǎn)速不夠。 |
改正轉(zhuǎn)向;減少水管長(zhǎng)度或清除淤塞;清洗葉輪;增加轉(zhuǎn)速。 |
泵流量減少或揚(yáng)程下降。 |
葉輪或管路阻塞;密封環(huán)或葉輪磨損嚴(yán)重;轉(zhuǎn)速低于規(guī)定值。 |
清洗葉輪或管路;更換損壞的零件;調(diào)整到額定轉(zhuǎn)速。 |
泵消耗的功率過(guò)大。 |
填料壓得太緊;葉輪與雙吸密封環(huán)磨擦;流量過(guò)大。 |
擰松填料壓蓋;消除機(jī)械磨擦;關(guān)小出水閘閥。 |
泵內(nèi)聲音反常,吸不上水。 |
吸水高度過(guò)高;吸水管漏氣;流量過(guò)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(dòng)厲害。 |
泵發(fā)生汽蝕;葉輪不平衡;泵與電機(jī)不同心;地腳螺栓松動(dòng)。 |
消除汽蝕;葉輪校平衡;校泵與電機(jī)的同軸度;擰緊地腳螺栓。 |
軸承過(guò)熱。 |
潤(rùn)滑油不足或過(guò)多,或變質(zhì);泵與電機(jī)軸不同心。 |
檢查油量,清洗軸承并換油;校泵軸與電機(jī)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. |