VAF instruments VISCOSENSE 2, Technical Manual

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47
21 ENCLOSURE
附件
21.1 RECOMMENDATIONS FOR A GOOD WORKING BOOSTER UNIT
为使供油单元系统
良好运转之建议
In order to get a good working booster unit we would like to point out a few things that are important.
为获得一个能正常运行之供油单元系统，我们特此指出一些要点供参考
Circulation
循环

The capacity of one circulation/booster pump should be 2,5 to 4 times the max fuel
consumption
循环
/
增压推进泵的容量应当为系统最大油耗之
2.5
到
4
倍

The capacity of one feeder pump should be 1,5 to 2 times the max fuel consumption
供给泵的容量应当为系统最大油耗之
1.5
到
2
倍
Fuel velocity
油速
Fuel velocity depends on the capacity of the circulation/booster pump and the inner diameter of the
pipe that is used. A larger inner diameter will give a slower fuel velocity.
燃油的速度取决于循环
/
增压
推进泵的容量以及所用管路之内径。内径越大，流速则越慢。

The recommended fuel velocity in the booster unit is 1 - 2 m/sec
单元中的燃油推荐流速为
1-
2
米
/
秒

The recommended fuel velocity to and from the engines is 0,25 – 0,5 m/sec
进出发动机的燃
油流速建议为
0.25-0.5
米
/
秒
Remarks
备注
:

A too high fuel velocity will result in larger pressure losses within the booster unit.
油速过高会导致供油单元系统中较大的压力损失

A too high fuel velocity can result in unstable viscosity measurements.
油速过高会导致粘度测量不稳定

A too low fuel velocity will result in a slow and possibly unstable viscosity control
油速过低会导致粘度控制迟缓及不稳定