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Views: 0 Author: Site Editor Publish Time: 2021-02-09 Origin: Site
Most firefighting water provided by firefighting water sources, fire fighting pumps need to be pressurized to meet the requirements of water pressure and water volume during firefighting. Failure due to improper installation and maintenance of the water pump will inevitably affect fire fighting and rescue and cause unnecessary losses. This article will introduce the composition of the fire fighting pump.
What constitutes a fire fighting pump
The fire fighting pump will stop after a while
The power consumption of the fire fighting pump is too large
fire fighting pump with power source. It is generally composed of a set of fire fighting pump, power source, control cabinet and auxiliary devices.
fire fighting pump group using water supply fire fighting pump.
fire fighting pump set with stabilized pressure fire fighting pump.
fire fighting pump with deep well fire fighting pump.
fire fighting pump group using submersible fire fighting pump.
fire fighting pump group using ordinary fire fighting pump.
The original habit is called hand-held motorized fire fighting pump, which is a fire fighting pump set that can be carried by human hands and assembled with a light engine.
1) The pump is not filled with water or properly vented
Remedy: Check that the pump casing and inlet line are completely filled with liquid.
2) The speed is too low
Remedy: Check whether the wiring of the motor is correct.
3) The system head is too high
Elimination measures: Check the head of the system (especially friction loss).
4) Suction lift is too high
Elimination measures: Check the existing net head.
5) Impeller or pipeline blocked
Elimination measures: Check for obstacles.
6) The direction of rotation is wrong
Remedy: Check the direction of rotation.
7) Air is generated or there is leakage in the inlet pipeline
Elimination measures: Check the inlet pipeline for cavitation and / or air leakage.
8) The packing or seal in the stuffing box is worn, causing air to leak into the pump casing
Elimination measures: Check the packing or seal and replace as necessary, check whether the lubrication is normal.
9) Insufficient suction head when pumping hot or volatile liquids
Elimination measures: increase the suction head, consult the manufacturer.
10) The bottom valve is too small
Elimination measures: Install the correct size foot valve.
11) The immersion depth of the bottom valve or inlet pipe is not enough
Elimination measures: Consult factory for correct immersion depth. Use baffles to eliminate eddy currents.
12) The impeller clearance is too large
Elimination measures: Check whether the gap is correct.
13) Impeller damaged
Elimination measures: Check the impeller and replace it as required.
14) The impeller diameter is too small
Elimination measures: Consult factory for correct impeller diameter.
15) The position of the pressure gauge is incorrect
Elimination measures: Check the correct position, check the outlet nozzle or pipeline.
1) The packing or seal in the stuffing box is worn out, causing air to leak into the pump casing
Elimination measures: Check the packing or seal and replace as necessary. Check whether the lubrication is normal.
2) The stuffing box is not properly packed (insufficient packing, not properly inserted or run-in, packing too tight)
Elimination measures: Check the packing and refill the stuffing box.
3) There are design problems with the packing or mechanical seal
Elimination measures: Consult factory.
4) Damaged mechanical seal
Elimination measures: check and replace as required. Consult the manufacturer.
5) Shaft sleeve scratches
Elimination measures: repair, re-machine or replace as required.
6) The packing is too tight or the mechanical seal is not adjusted properly
Elimination measures: Check and adjust the packing, and replace as required. Adjust the mechanical seal (refer to the manufacturer's instructions provided with the pump or consult the manufacturer).
If you want to buy fire fighting pumps,please contact SUOTO PUMP.
