VAF instruments VISCOSENSE 2, Technical Manual

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6
2 SYSTEM DESCRIPTION
系统描述
2.1 SYSTEM DESCRIPTION
系统概述
ViscoSense
®
2 is, besides other applications, intended for use in fuel oil treatment systems to obtain
a correct measurement and control of the fuel oil viscosity.
扭转振动黏度计
ViscoSense
®
2
既是应用于燃油处理系统以期对燃油的粘度进行准确测量及调控
Figure 1 shows a typical fuel treatment system with return line from the engine. In this system, the
degassing/mixing tank operates as a fuel buffer, ensuring gradual changes of viscosity which results
in a stable control of the viscosity. The ViscoSense
®
2 sensor is used to measure the actual viscosity
of the fuel oil. The signal from the sensor is compared to the setpoint of a viscosity controller, which
regulates the output of the fuel heater via a control element (steam or thermal oil valve, or electric
heater cabinet).
Figure 1 Typical example of an automatic control system using steam or thermal oil heater
图表
1
给出了一个典型的具有主机回流管路的燃油处理系统图。在该系统中，除去瓦斯
/
混油桶起到燃
料缓冲器的作用以确保黏度渐变，从而获得对黏度的稳定控制。控制系统对黏度传感器发出的信号与
控制器的设定值进行比较，通过控制元件
[
蒸汽，热油阀或电热器
]
以调节加热器的输出
Marine Diesel Oil
船用柴油
Heavy Fuel Oil
重燃油
Feeder Pump
供给泵
Degassing/Mixing Tank
除去瓦斯
/
混油桶
Filter
过滤器
Booster Pump
增压推进泵
Fuel Heater
燃油加热器
Steam/Oil
蒸汽
/
油
Control Element
控制元件
Controller
黏度控制器
ViscoSense
®
Sensor
探头
ViscoSense
®
Interface Box
界面接口盒
Engine
发动机