News classification
Contact us
- Add:
- Tel: 021-61556086
- Fax: 021-61294495
- Email:
Fire pump failure and ruled out
Fire pump failure and ruled out
Single-stage single-suction fire pump set for conveying water without solid particles and the physical and chemical properties similar to water in the liquid, it is mainly used for fire protection system for pressurized water supply in pipeline, also can be applied to industrial and urban water supply and drainage, pressurized water supply in high-rise buildings, distant distance water, cold and hot water circulation, pressurization in heating, bathrooms and boilers, water supply in air-conditioning and refrigeration system and supporting equipment, etc.In the daily operation will fail, introduce the generation of the failure and ruled out the following:
Failure and elimination
The failure phenomenon may be the cause of elimination method
Pump not bibulous, pressure gauge and vacuum gauge pointer throbbing 1, pouring water diversion is not 2, piping and instrument connection place a flat 3, electron absorption high 1, inspection Chad bottom valve is leaking, and irrigation water diversion 2, 3 tight gas leakage, reduce the suction height
Pump not bibulous, vacuum gauge indicates high vacuum 1, bottom valve open or already blocking 2, 3 suction pipe resistance is too big, filters block 1, 2 inspection Chad bottom valve, replace the suction pipe 3, clean the filter
Pressure gauge pressure, but still not out of the water 1, 2 outlet pipe resistance is too big, wrong direction of rotation of 3, 4, outlet pipe valve is not impeller block 1. Inspection Chad or shorten the pipe 2, inspection Chad motor, two each other down 3, open the impeller outlet valve remove dirt
Amounted to less than 1, the two flow with air suction 2, due to water lowering, submerged depth of 3, impeller block 4 foreign body in it, the rotor parts serious wear 1, inspection Chad leak site and 2 were excluded, extended suction pipe, deepen the submerged depth of 3, remove the removal and 4, replace the seal ring
1 pump power consumption is too high, too tightly on the packing, and fever 2, and 3 flow rate is too high, 4 of rotors and shell have scratches, pump bearing wear 5, the pump shaft kiln 1, appropriate relax 2, turn down the gate opening 3, finishing 4, 5 replacement bearing, replace or correction
Pump vibration 1, the impeller is local have blocking 2, impeller damaged 3, small flow of 4, 5 different heart, pump shaft and motor bearing damaged 6, mixed with air, cavitation occurred 1, remove nutrient-laden except foreign body 2, replace 3, slightly open the outlet valve 4, fixed point is 5, find replacement 6, change the suction, improve the suction pipe
Single-stage single-suction fire pump set for conveying water without solid particles and the physical and chemical properties similar to water in the liquid, it is mainly used for fire protection system for pressurized water supply in pipeline, also can be applied to industrial and urban water supply and drainage, pressurized water supply in high-rise buildings, distant distance water, cold and hot water circulation, pressurization in heating, bathrooms and boilers, water supply in air-conditioning and refrigeration system and supporting equipment, etc.In the daily operation will fail, introduce the generation of the failure and ruled out the following:
Failure and elimination
The failure phenomenon may be the cause of elimination method
Pump not bibulous, pressure gauge and vacuum gauge pointer throbbing 1, pouring water diversion is not 2, piping and instrument connection place a flat 3, electron absorption high 1, inspection Chad bottom valve is leaking, and irrigation water diversion 2, 3 tight gas leakage, reduce the suction height
Pump not bibulous, vacuum gauge indicates high vacuum 1, bottom valve open or already blocking 2, 3 suction pipe resistance is too big, filters block 1, 2 inspection Chad bottom valve, replace the suction pipe 3, clean the filter
Pressure gauge pressure, but still not out of the water 1, 2 outlet pipe resistance is too big, wrong direction of rotation of 3, 4, outlet pipe valve is not impeller block 1. Inspection Chad or shorten the pipe 2, inspection Chad motor, two each other down 3, open the impeller outlet valve remove dirt
Amounted to less than 1, the two flow with air suction 2, due to water lowering, submerged depth of 3, impeller block 4 foreign body in it, the rotor parts serious wear 1, inspection Chad leak site and 2 were excluded, extended suction pipe, deepen the submerged depth of 3, remove the removal and 4, replace the seal ring
1 pump power consumption is too high, too tightly on the packing, and fever 2, and 3 flow rate is too high, 4 of rotors and shell have scratches, pump bearing wear 5, the pump shaft kiln 1, appropriate relax 2, turn down the gate opening 3, finishing 4, 5 replacement bearing, replace or correction
Pump vibration 1, the impeller is local have blocking 2, impeller damaged 3, small flow of 4, 5 different heart, pump shaft and motor bearing damaged 6, mixed with air, cavitation occurred 1, remove nutrient-laden except foreign body 2, replace 3, slightly open the outlet valve 4, fixed point is 5, find replacement 6, change the suction, improve the suction pipe