轮机英语教学课件(22) Air Conditioning System

Oily water mixture Catch plates
Filter unit
100 p.p.m or less
Fine separating compartment
Separatorevention
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.
water separator? 6.what’s the working principles of crude oil
washing machine?
15ppm 15,9—oil collection space
22—coarse separating compartment
23—fine separating compartment
Lesson 22 Oil Pollution Prevention
Oil Pollution Prevention
1. Phrases 2. Focus 3. Analysis of some long and difficult
sentences 4. Some choices related to the
Oil Pollution Prevention
3.All constructions and equipment for oil pollution prevention must be proved in accordance with the regulations, and issued with International Oil Pollution Prevention (IOPP) certificates.
Oil Pollution Prevention
2.As well as requiring tankers of certain sizes to have segregated or clean ballast tanks (SBT or CBT) to reduce the ballast contaminated with oil, new regulations have strict requirements for control of discharge of oil from a tanker.
Oil Pollution Prevention
Focus: 1.What are the three major sources of oil
pollution? 2.What is the full name of MARPOL? 3.When did Marpol come into force? 4.What’s the requirement for bilge discharge? 5. What’s the working principles of oily
译文:新规则在要求一定尺寸的油船设独立压载舱或清洁压载舱以减少压 载水含油量的同时，还对船的排放控制作了严格要求。
分析：该句的主语是new regulations ，谓语是have，宾语显然 是 strict requirements。for control of discharge of oil from a tanker为目的状语，As well as requiring…为比较状语。
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.
competency test 5. Some supplement reading materials
Oil Pollution Prevention
Phrases:
oil pollution prevention the latest legislative requirements depend upon be capable of be filled with as a result of an alarm unit a slop tank ballast tank surface tension An alarm unit
译文:所有有关防止油污染的船舶结构和设备必须符合规则规 定,并签发<<国际防止油污证书>>.
分析：该句是并列句,主语是constructions and equipment , for oil pollution prevention为其后 置定语, in accordance with the regulations为第 一分句的主补.第二分句谓语是(must be) issued with, International Oil Pollution Prevention (IOPP) certificates.为宾语
Air Conditioning System
3. In a typical marine pattern self-contained unit, air circulation is usually effected by means of a centrifugal fan, for quiet running, and a direct expansion cooler served by a hermetic compressor.
译文:上述第一种污染可通过将洗舱水排至污水深舱沉淀分离来减少,分离出 的水排出弦外,残留与上部 污油排至岸上精炼厂。
分析：该句主语是The first source， by为方式状语，and discharge也是介词 by的宾语。 of tank washings和of the water是两个discharge的定语 。 to a slop tank和for settling是by the discharge的地点状语和目的状语。 while retaining the load on top for pumping shore to the refinery 是“ by the discharge”和 “and discharged”的伴随状语。 Retaining为现在分词， the load on top是retaining的宾语， for pumping shore为宾补。
Coalescer inserts
100ppm
24— catch plate
Discharge purity Drawing for oil/water separator &
are 15 p.p.m. or filter unit
less.
Oil collecting space
Coarse separating compartment
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。
译文:最新立法的要求是,当要求排油浓度为100时,需装设一台能连
续记录的监视器,当要求排油浓度为15 ppm时,需装设一台警报器, 在排油浓度超过15 ppm时发出报警.
分析：该句主句用主系表结构,表语是“a monitoring unit…,” “and an alarm unit …”， where 100 ppm purity 和where 15ppm purity 从语法的角度看是插入 语，没有它们，结构也很完整。 从句意上看是条件 状语从句。
译文:粗粒化就是打破油水混合物中油滴之间表面张力， 使油滴聚合增大.
分析： between oil droplets 是tension的后置定 语. Which代其前全句. which通常是代名词, 也 可代句中一部分或全句.
Oil Pollution Prevention
5.The latest legislative requirements are, where 100 ppm purity is required, a monitoring unit which continuously records, and where 15ppm purity is necessary and an alarm unit to provide warning of levels of discharge is in excess of 15 ppm.