What are the factors that affect the boiler feed pump power?

In practice, there are often unreasonable phenomena: one situation is that the power rate reserve factor is chosen to be too small to overload the power machine, the boiler feed water pump unit can not run normally, and even the power machine has the risk of burning, and the other is the power The standby factor is too large, the power load is insufficient, and the performance of the power machine can not be fully utilized. The power and power factor of the power machine can be reduced, which will increase the power consumption and cause no waste.
In view of the above problems, this paper gives the expression of the reliability of the reliability of the operation of the pump unit from the angle of the operation of the pump and the power machine. The standby ratio of the power rate and the reliability of the unit operation are established, and the probability statistical method is established The calculation model of the reliability of the pump unit is given, and a practical calculation method is given, which provides a scientific basis for the reasonable matching of the pump and the power machine. For the water pump type and the different power rate reserve factor, the pump unit is reliable The calculation results are analyzed and the valuable conclusions are drawn.
      Factors affecting the power of the boiler feed pump:
        1, the boiler pump itself is the most fundamental impact of power. The same operating conditions of the pump, the power can be a difference of more than 15%.
        2, the boiler pump operating conditions lower than the pump's additional conditions, low pump efficiency, high energy consumption.
        3, the motor power in the use of simply insist on the same. It is therefore important to pick a high-power motor.
        4, the impact of boiler power is mainly concerned with the quality of the description and production. Pump selected, the latter part of the impact of smaller.
        5, hydraulic loss includes hydraulic conflict and some resistance loss. Boiler pump running time, inevitably the formation of impeller and guide vane and other parts of the appearance of wear and tear, increased hydraulic loss, reduced hydraulic power.
        6, the boiler pump volume loss, also known as missing leaks, including impeller seal ring, interstage, axial force balance organization three leaks lost. Volume of the power of the bump is not only related to the description of the production, but also with the later processing. After a continuous operation of the pump, because the conflict between the various components, the gap increases, the volume of power reduced.
        7, because the filter cylinder blockage, pipeline intake and other reasons to form a centrifugal pump pumping and idle.
        8, the boiler pump before the start, the workers do not pay attention to the centrifugal boiler pump before the start of the preparatory work, warm pump, disk pump, irrigation pump and other basic operating procedures to perform incomplete, often the formation of pump cavitation, resulting in pump noise, , Low pump efficiency.
        The general boiler pump is designed to achieve the highest power, that is, the boiler boiler hydraulic layout parameter is the best combination of the highest power. For other pumps, this type of pump with special requirements can not go beyond the same period of boiler power. Other pump power below the boiler pump is the primary reason for their over-current channel widened. The value of the power reduction is primarily related to the degree of widening. Other pump runner widening is to avoid clogging. IS, IH-type boiler pump for the delivery of water or physical and chemical properties similar to other liquids used in water.