船舶自动控制第四章 第三节NAKAKITA 型燃油粘度自动控制系统 下载本文

一. NAKAKITA型粘度/溫度控制裝備系統圖 (FLOW SHEET OF

MAIN ENGINE FUEL OIL VISCO./ TEMP. CONTROL EQUIPMENT)

船用燃油規格品質日趨惡化,為維持柴油主機有效率的運轉,適當的控制燃油黏度及即時反應黏度指數相對的重要。NAKAITA型黏度計之工作原理及其構成要件如下圖所示。

No. DESCRIPTION 1 40A DIAPHRANGM CONTROL VALVE

2 NS TBT732 TEMP. CONTROLLER 3 4 5 6 7 8 9 10 11 12

NS VBT732VISCOSITY CONTROLLER VISCO-DETECTOR

YEW 13A1 DIFF. PRESS. TRANSMITTER OIL SEPARATOR

EQUALIZING VALVE STOP VALVE AIR CHAMBER

FILTER REGULATOR (WITH PRESS. GAUGE) NEEDLE VALVE

FILTER REGULATOR

13 AIR PIPE JOINT

14 MEASURING PRESSURE JOINT 15 3-WAY COCK 16 17 18 19 20 21 22

P/I CONVERTER

NS TM790N TEMP. TRANSMITTER

FILTER REGULATOR (WITH PRESS. GAUGE) RECEIVE GAUGE STARTER PANEL

80A 3WAY CHANGE OVER VALVE LIMIT SWITCH

23 3WAY SOLENOID VALVE 24 A/C CHANGE OVER SWITCH

NS777C 型粘度偵測器佈置圖