轮机英语教学课件(28) control systems 1

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轮机英语教学课件(29) control systems 2

轮机英语教学课件(29)  control systems 2
1. Desired value signals for engine r/min are transmitted from the bridge control position or engine room remote control position and compared with the measured value signal from a propeller shaft speed
独立于驾驶台控制系统的应急停车控制系统
8. Also the bridge watchkeeper must be made aware of any machinery fault, that the fault is being attended to and that it has been rectified.
the initial movement actuating the starting sequence on air为独立主格结构, 译文为:其初始动作是按起动顺序进空气
when a pre-set r/min has been reached 为时间状语从句,译为当达到预定转数时。
4. Subsequent movement of the lever operates a servo-mechanism which adjusts the speed setting lever on the engine and which is in turn connected to the governor.
sensor, the difference between these two signals being the r/min deviation from the required.

新版轮机英语Lesson29-satnd-by-engine

新版轮机英语Lesson29-satnd-by-engine
查证倒车及控制机构、转向联动安全装 置、自动停车设备及警报装置功能正常。
19. Open shut-off valve(截止阀) for starting air tank, close the drain valve on the starting air manifold(管路).
打开起动空气瓶截止阀, 关闭主起动空 气管路放残阀。
油头冷却水柜加热系统投入使用, 加 热温度至60℃持续约2h。
If the engine is to be started on high viscosity fuel the temperature of the water should be raised to 77 to 82℃.
若柴油机用高黏性燃油起动, 则水温应 加热至77~ 82℃。
8. If hoppers(观察镜) or sight glasses are fitted check that there is an adequate flow of coolant through each piston, cylinder head, cylinder jacket, turbocharger casing and injector(油头).
16. All hand oil- and greaselubricated ( 油 脂 润 滑 ) bearing must be checked to see that their lubrication is correct, the control linkage (连接) is well lubricated and easily operated(操控).
4. Start up jacket water pumps and check pressures. Bring into operation the heating system of the cooling water.

轮机英语教学课件(22) Air Conditioning System

轮机英语教学课件(22) Air Conditioning System
译文:在典型的单体船用空调装置中,空气的循环是通过低噪音 的离心式风机和由封闭式压缩机抽气的直接膨胀式冷却器 来实现.
分析:该句主语是air circulation , 谓语是is effected , In a typical marine pattern self-contained unit是状语, by means of…为方式状语, of的宾语有两 个,“ a centrifugal fan, and a direct expansion cooler”,“ for quiet running”为目的状语, “ served by a hermetic compressor”是cooler 的后置定语。
Oily water mixture Catch plates
Filter unit
100 p.p.m or less
Fine separating compartment
Separator unit
Oil Pollution Prevention
1. The first source is reduced by the discharge of tank washings to a slop tank for settling, and discharged of the water while retaining the load on top for pumping shore to the refinery.
Oil Pollution Prevention
4.Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and increase in size.

轮机英语(lesson 1)

轮机英语(lesson 1)

China Maritime Police Academy
evaporator frigate funnel habitability hatch layout longitudinal
n. n. n.
造水机 护卫舰 烟囱
n. 可居住性 n. 舱口 n. a. 规划,设计,布局图 经度的,纵向的
China Maritime Police Academy
• 在造船工程和轮机工程两个领域有些职责发生了重叠,比如推进器设计, 船舶结构的减噪和减震,以及为船舶许多领域提供工程服务。
• A ship might reasonably be divided into three distinct areas: the cargo-carrying holds or tanks, the accommodation and the machinery space.
China Maritime Police Academy
0.3 Examination of the course
Everybody who want to attain the
seafarer fitness certification, should
take part in the examination twice
China Maritime Police Academy
Байду номын сангаас
• The marine engineer is responsible for the various systems which propel and operate the ship.
• 轮机工程负责船舶推进和操控的各种系统。
• More specifically, this means the machinery required for propulsion, steering, anchoring and ship securing, cargo handling,air conditioning, power generation and its distribution.

船舶设备与系统-舵设备ppt课件

船舶设备与系统-舵设备ppt课件
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ppt课件
二、舵装置的分类与构造 2.1 舵装置的分类
32
ppt课件
二、舵装置的分类与构造
2.1 舵装置的分类
以上介绍的舵均为普通舵,据有关资料统计, 约70- 80%的船都采用流线型普通舵。
1.一般大型及超大型海船多用支承或双支承的 流线型平衡舵;
2.中小型船用半平衡流线型挂舵的居多; 3.平板舵仅用在非自航船或小艇上。
5
ppt课件
本章目录 一、概述 二、舵装置的分类与构造
三、舵叶的水动力特性及计算 四、舵叶参数的确定 五、舵设备零部件尺寸的确定 六、操舵装置 七、特种舵及其他操纵装置
6
ppt课件
一、概述
舵是船舶操纵装置的一个重要部件。船舶操纵 性是船舶的重要性能之一,广义上来讲是泛指船舶 对驾驶者操纵的反应能力。
上半部支承在舵柱或挂舵臂处舵钮上,而下半部支承 在舵叶的半高处。一般为半平衡舵。
27
ppt课件
二、舵装置的分类与构造
2.1 舵装置的分类
舵的主要类型
半平衡舵 轴平衡舵
半悬挂舵 支承舵
悬挂舵
不平衡舵 多支承舵
三支点平衡舵
穿心舵 双
28
ppt课件
二、舵装置的分类与构造 2.1 舵装置的分类
3. 按舵叶的剖面形状分类 1)平板舵(flat-plate rudder) 又称单板舵。舵叶是一块钢板 或在钢板上两面交替安装的横 向加强筋(舵臂)等构成。
10
ppt课件
一、概述
船用舵是平板或机翼型结构,设于船的尾端, 一般在推进器之后。
11
ppt课件
一、概述 1.1 舵的作用原理
当水流以某攻角作用于舵叶上时,在船尾产生了横向的舵力, 舵力通过舵杆传递于船体上,从而迫使船舶转向,也就达到了 调整航向的目的。

轮机英语 Marine Engineering English

轮机英语 Marine Engineering English

轮机英语- 轮机工程原理(英文版)Principles of Marine Engineering2010. 10ContentsContents (2)1 Main propulsion plant (篇标题) (3)1.1 Ships and machinery (章标题) (3)1.2 Diesel engine (9)1.3 Shaft and propellers (46)2 Marine auxiliary machinery (55)2.1 boilers (55)2.2 Pumps (55)2.3 Refrigeration, air conditioning and ventilation (55)2.4 Pollution prevention devices (55)2.5 Centrifugal separator and fresh water generator (55)2.6 Deck machinery (55)3 Electrical equipment and automatic control (56)3.1 Alternating current generators (56)3.2 Main switchboard and distribution system (56)3.3 Marine electrical equipment (56)3.4 Marine automatic control (56)4 Watch keeping and equipment operation (57)4.1 operation procedures (57)4.2 Safety operation (57)4.3 Stores and spare parts (57)4.4 Shipp repair and docking (57)4.5 Pollution prevention operation and Port State Control (57)5 International conventions and regulations (58)5.1 STCW (58)5.2 MAPROL (58)5.3 SOLAS (58)5.4 ISM (58)5.5 ISPS (58)6 Marine business writing (59)6.1 Engine log book (59)6.2 Repair list (59)6.3 Store order and spare parts requisition form (59)6.4 Accident report (59)6.5 Engineer’s reports, letters, faxes and emails (59)Index ............................................................................................................... 错误!未定义书签。

Lesson28CONTROLSYSTEMSI轮机英语课件

Lesson28CONTROLSYSTEMSI轮机英语课件

In order to ensure the safety of the ship and its equipment during UMS (Unattended Machinery Spaces 无 人 机 舱 ) operation, certain essential functions must be provided.
Jimei university
Low pressure is monitored at the common inlet to the engine with alarm and slowdown or shut down of the main engine.
Jimei university
In some cases there may be an alarm only for low pressure on all supplies other than to the main bearings, with alarm and shut down only on these.
Jimei university
Modern engine room has machinery control rooms from where every possible operation will be performed remotely.
Jimei university
The operation state and parameters of working condition of machines can be recorded, displayed and controlled automatically or manually in the rooms.

轮机英语3精品PPT课件

轮机英语3精品PPT课件
❖ naturally aspirated自然换气 ❖ centrifugal turbocharger径流增压器 ❖ top dead center上止点
❖ 3.In a two-stroke engine, there are always a series of openings known as ________, and in some circumstances, there are also openings known as ________, in the part of the cylinder liner inside the scavenging air box.
❖ A. open; short; after B. closed; short; after
❖ C. open; long; before D. closed; long; before ❖ 答案 A (p8, para 2)
❖ 如果柴油机是自然换气或带有径流增压器的小型高速机, 气阀重叠的时间,即两气阀同时开启的时间将很短。排 气阀将在上止点后10度左右关闭。
在汽缸套伸入扫气箱内的部位也有一列开口被称作排气口。
❖ scavenging air box 扫气箱
❖ 4.In some type of two-stroke engines, besides some small holes for ________, starting valve, safety valve, indicator cock, and so on, there is a large central opening in each cylinder cover for mounting the _________.
器,起动阀,安全阀,示功阀等,还有一个大型的中心孔用于安 装排气阀。
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that senses the performance of the machine…and intended performance为定语 从句修饰a self-regulating mechanism,在这个 定语从句中,senses the performance, compares it with the intended performance 与adjusts the machine并列,中间用and连接。
b. 本句可译为:
术语“自动化”或自动控制,通常用来指机 器通过自我调节装置来运行。此装置能感知 机器的运转状况,并通过称作反馈的过程将 其与预期的运转状况进行比较,然后,调整 机器以减小实际与预计运转状况之间的差异。
3. Remote control means that the system is being controlled by the operator who is situated remote from the system.
c. in the rooms refers to in the machinery control rooms.
5. In order to ensure the safety of the ship and its equipment during UMS operation,certain essential functions must be provided.
2. The term ‘automation’, or automatic control, generally is taken to mean the operation of a machine by a self-regulating mechanism that senses the performance of the machine and, using a process called feedback, compares it with the intended performance, and then adjusts the machine to reduce the difference between actual and intended performance.
8. UMS: Unattended Machinery Space 9. In the event of 10.be informed of
II. Analysis of long and difficult sentences
1. Control systems on board ship are either automatic or remote or a combination of these. a. on board ship 作定语修饰control systems,本短语译为船上的控制系统。 b. either…or…:要么…要么
Focus
1. the three kinds of control systems on board ship especially the combination of automatic and remote control
2. the definition of automatic and remote control
3. the use of computers in a full automatic control system
4. the use of audible and visual alarms in the control system
5. UMS
Reading material C: boiler water level control
Lesson 28
Focus Remote control, automatic control and a combination of these The usages of computers UMS Reading material C : boiler water level control
I. Phrases:
1. automation 2. automatic control 3. a self-regulating mechanism 4. remote control 5. a machinery control room 6. an alarm system 7. an audible and visual alarm
a. in order to ensure the safety of the ship and its equipment during UMS operation作目的状语,其中the ship与its equiptial functions must be provided为主句,且为一被动句型。
that the system is being controlled by the operator 为宾语从句
who is situated remote from the system作定语修饰the operator
4. The operation state and parameters of working condition of machines can be recorded, displayed and controlled automatically, or manually in the rooms.
a. the operation state and parameters of working condition of machines 为主语,机器 的运转状况和工况参数
b. recorded,displayed与controlled并列,而 automatically 与manually并列。
Remember the following point: When a boiler is operating, the water
level in the gauge glass reads higher than when the boiler is shut down.
a. This sentence is very long, 主语为
the term, automation or automatic control 为the term 的同位语,其中 automation 与automatic control 又是同 位语。
谓语为is taken,to mean the operation of a machine by a self-regulating mechanism为 不定式作主语补足语,
using a process called feedback作状语 修饰compares,其中called feedback修饰 process,
to reduce the difference between the actual and intended performance为不 定式作目的状语。
4. What does remote control mean?
5. What kind of alarms will be given when a fault condition is located?
6. What does UMS refer to?
7. When are UMS mainly unattended? And who should have control of the main engine?
Questions
1. What can control systems on board ship be divided into?
2. What is automatic control? 3. what is used to supervise, analyze,
record and display the conditions of the machine in a full automatic control system?
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