As we all know, fire pumps are important to the cause of fire. The delivery of liquid flow is the most important parameter of the performance of fire pumps, liquid flow is often the user to buy an important factor in the fire pump, so businesses and scholars should do more preparatory work on related issues. In addition to transporting liquid flow, fire pump power consumption is also an important parameter to determine the work of the fire pump, but the fire pump power consumption occasionally there will be anomalies, fire pump power consumption abnormal diagnosis should be carried out? Fire pump power consumption anomaly diagnosis 1, the liquid is heavier than the expected value, can take the elimination of measures: Check the proportion and viscosity. 2, shaft bending, elimination measures can be taken: straightening axis or on request to be replaced. 3, the direction of rotation is wrong, can take the elimination of measures: check the direction of rotation. 4, impeller damage, can take the elimination of measures: Check the impeller, according to the requirements of replacement. 5, rotating parts bite, can take the elimination of measures: Check the internal wear parts of the gap is normal. 6, bearing lubrication is not correct or bearing wear, elimination measures can be taken: check and replace as required. 7, the speed is too high Elimination measures can be taken: Check the motor winding voltage or steam pressure delivered to the turbine. 8, the head below the rated value, pumping too much liquid, can take the elimination of measures: advice to manufacturers, the installation of throttle, cutting impeller. 9, the stress on the pump casing pipe is too large, can take the elimination of measures: to eliminate stress and advice to the manufacturers representatives, after eliminating the stress, check the alignment. 10, Wear ring between the running gap is not correct, can take the elimination of measures: Check the gap is correct, according to the requirements of the pump shell and / or impeller wear ring. 11, stuffing box is not properly filled (insufficient packing, not properly inserted or run together, the packing is too tight), can take the elimination of measures: check the packing, packing stuffing. In summary, we have found that there are many factors that make the power consumption of fire pump abnormal. For example, the stress on the pipe in the pump casing is too high, the running clearance between wear rings is not correct, the stuffing box is not properly filled, Wait. But users encounter these problems when using the equipment, we have a good solution, for the user, the product experience becomes more and more important, businesses and academics should pay attention to the relevant issues.