SNS40R38U8W2三螺杆泵、SN系列立式三螺杆泵

三螺杆泵常用知识

1．三螺杆泵的流量，压力在相同转速、黏度时近似成直线关系，压力越高，流量越小。

2．相同粘度、压力下泵的流量与转速近似成正比。

3．相同转速、粘度时，轴功率与压力近似成正比。

4．相同粘度、压力下，轴功率与转速近似成正比。

粘度增大时，流量和轴功率均增加，但由于其中关系比较复杂，必要时，向专业人员咨询。

例：在常温下输送γ=75cst 的润滑油，要求：Q=11.5m3/h P=1.0MPa

根据以上参数查样本选SNH210R46U12.1

其参数为：Q=203 l/min=12.18m3/h P=1.0MPa

n=1450rpm N=4.24KW

由泵的轴功率N 选电机

查表得功率储备系数K=1.25。

电机的功率Nm=K·N=1.25×4.24=5.3KW。

由电机样本查得：Y132S-4 的功率为5.5KW。

Three screw pump commonly used knowledge

1 of the three screw pump flow, pressure at the same speed, viscosity approximation into a linear relationship, the higher the pressure, the flux is small.

Pump flow and speed of

2 the same viscosity, pressure is approximately proportional to the.

3 the same speed, viscosity, the shaft power and pressure is approximately proportional to the.

4 the same viscosity, pressure, shaft power and speed linearly proportional to.

Viscosity increases, the flow and shaft power increased, but the relationship is more complex,if necessary, consult with a professional

Example: delivery of γ =75cst at room temperature, lubricating oil, requirements: Q=11.5m3/h P=1.0MP

According to the above parameters check sample. SNH210R46U12.1

The parameters were: Q=203 l/min=12.18m3/h P=1.0MPa

N=1450rpm N=4.24KW

The shaft power of pump motor N

The tables of power reserve coefficient K=1.25.

The power of the motor Nm=K · N=1.25 × 4.24=5.3KW.

The motor sample check: Y132S-4 power 5.5KW.

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Two, our customers

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