How to choose diesel oil pumping unit of the diesel engine power?

How to choose diesel oil pumping unit of the diesel engine power?

       （ 1) Diesel oil pumping unit pump calculate and determine the matching of the diesel engine power.

according to pump itself form a complete set of supporting power required by the motor power calculation of diesel engine, and refer to the pump running time every day, choose suitable nominal power.

according to the formula: P1 = KPo/N

among them: P1 is diesel engine power

K Po is the pump power are reserve coefficient

N is a transmission efficiency of pump power back to less than 5 KWH, K is 1. 7 ~ 1. 3

pump power in 5 kw to a 50 kilowatt hour, K is 1. 15 ~ 1.

10 pump power in 50 to 100 KWH, K is 1. 08 ~ 1. 05

water pump power is more than 100 KWH, K is 1. 05

N when the shaft is 1, less than 1 when the belt drive, generally take a 0. 98

column as one JiGuan station installing a diesel pumps, its rotational speed n = 980 r/min, shaft power p = 18. Try 3 kW, if use flat belt transmission, equipped with diesel engine.

water pump in and out of the size: 150 mm traffic: 200 m after 20 m/h head, we can calculate the pump shaft power: 200 x20x9. 81/3600/0. 72X1. 25 = 19 kw, know know power we can choose more high-power diesel back to the machine. ( Note: at the time of matching diesel engine software to remember don't choose, choose a standby power but need to choose the commonly used power to 8 discount so that diesel engine can safe work on diesel engine there will not be damaged, long service life will be more)

solution: 1. Diesel oil pumping unit how to calculate the water pump with diesel engine power

according to the water pump shaft power, by table 4 - 3

check reserve coefficient k = 1. 13, opening flat belt transmission, transmission efficiency, n = 0. 98,

2) The selection of pump diesel engine speed. With water pump of diesel engine, in addition to meet the requirements of form a complete set of power, speed is also appropriate, the rotational speed of diesel engine should be chosen and adopted by the power of the corresponding calibration speed. The rotational speed of diesel engine can be controlled by appropriate transmission equipment meet the requirements. 2. Diesel oil pumping unit pump diesel engine selection according to the water pump work every day, diesel engine using 12 h power, check samples of diesel engine, can form a complete set of models and its performance is shown in the table below

from the above analysis, two kinds of models can form a complete set, calibration of model 3110 diesel engine rotating speed and pump speed, supporting transmission than 39 type diesel engine, but the 390 type diesel engine fuel consumption rate is low, more economic. The current water pump with diesel engine as power products belong to various types of self-priming pump products.

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