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1、Lesson 30Text Watch keeping(值班)Lesson 30Text Watch keeping(值班At the beginning of the watch the current(當(dāng)前的) operational parameters(參數(shù)) and the condition of all machinery should be verified(檢驗(yàn), 校驗(yàn))At the beginning of the watch and also the log(航行日志) readings should correspond with (be in agreement wi
2、th) those observed.and also the log(航行日志) readingLesson-30-Watch-keeping(值班)-輪機(jī)英語(yǔ)課件Lesson-30-Watch-keeping(值班)-輪機(jī)英語(yǔ)課件The levels of tanks containing fuel, water, slops(污油), ballast(壓載水), etc., should be noted and also the level of the various bilges(艙底水). The levels of tanks containingThe operating m
3、ode(方式, 模式) of equipment and available standby(備用) equipment should also be noted. The operating mode(方式, 模式) of *At appropriate intervals(e.g. at 30-minute intervals) inspection should be made of the main propulsion plant, auxiliary machinery and steering gear spaces. *At appropriate intervals(e.g.
4、Any routine(常規(guī), 慣例) adjustments may then be made and malfunctions(故障) or breakdowns can be noted, reported and corrected. Any routine(常規(guī), 慣例) adjustmentDuring these tours(巡回) of inspection bilge level should be noted, piping and systems should be observed for leaks(泄漏), and local indicating instrume
5、nts also be observed. During these tours(巡回) of inspBridge(駕駛室) orders must be promptly carried out and a record of any required changes in speed and direction should be kept. Bridge(駕駛室) orders must be pro* When under standby or maneuvering(機(jī)動(dòng)操作)conditions with the machinery being manually operated
6、 the control unit or console(控制臺(tái)) should be continuously manned(有人操縱的). * When under standby or maneuvCertain watchkeeping duties are necessary for the continuous operation of equipment or plant-the transferring of fuel for instance. Certain watchkeeping duties ar*In addition to these regular tasks
7、other repair or maintenance tasks may be required of the watchkeeping personnel(人員). *In addition to these regular *However no tasks should be undertaken(從事, 進(jìn)行) which will interfere(干擾,影響) with the supervisory(管理的、監(jiān)督的) duties relating to the main machinery and associated equipment. *However no task
8、s should be unDuring the watch a log or record will be taken of the various parameters of main and auxiliary(輔助的) equipment. During the watch a log or recFuel consumption(消耗量) figures are used to determine the efficiency of operation, in addition to providing a check on the available bunker(燃料倉(cāng)) qua
9、ntities. Fuel consumption(消耗量) figures *Lubricating oil(潤(rùn)滑油) tank levels to some extent(partly) indicates engine oil consumption. If the sump level were to rise this would indicate water leakage into the oil and an investigation(調(diào)查、檢查) into (of, on) the cause must be made.*Lubricating oil(潤(rùn)滑油) tank
10、lev*The engine exhaust temperature reading should all be about the same to indicate an equal power production from each cylinder. *The engine exhaust temperaturThe various temperature and pressure values for the cooling water and lubricating oil should be at, or near to, the manufacturers designed v
11、alues for the particular speed or fuel lever(油門(mén)調(diào)節(jié)桿)settings.The various temperature and pVarious parameters for the main engine turbo-blowers(渦輪增壓器) are also logged. Since they are high speed turbines(渦輪) the correct supply of lubricating oil is essential. Various parameters for the mai*The air cool
12、er should be supplied with adequate amount of cooling water to ensure efficient combustion.*The air cooler should be supp*Various level and temperature readings are taken of heavy oil tanks, both settling and service, bearings, sea water, etc. *Various level and temperature*The operating diesel gene
13、rators will have their exhaust(排氣) temperatures, cooling water and lubricating oil temperatures and pressures logged in much the same way as for the main engine. *The operating diesel generato*Of particular importance will be the log of running hours since this will be the basis for overhauling(大修,維
14、修)the machinery. *Of particular importance will*Other auxiliary machinery and equipment, such as heat exchangers, freshwater generator(evaporator)(造水機(jī)), boiler, air conditioning plant and refrigeration plant will also have appropriate readings taken. *Other auxiliary machinery andThere will usually
15、be summaries or daily account tables for heavy oil, diesel oil, lubricating oil and fresh water, which will be compiled(匯編) at noon. There will usually be summarieThe completed log is used to compile a summary sheet(表、單) or abstract(摘要、小計(jì)) of information which is returned to the company head office
16、for record purposes. The completed log is used to cWhere situations occur in the machine space(機(jī)艙) which may affect the speed, maneuverability(機(jī)動(dòng)性能), power supply or other essentials for the safe operation of the ship, the bridge should be informed as soon as possible. Where situations occur in theT
17、he engineer in charge should notify(通知) the *Chief Engineer in the event of any serious occurrence(事件) or a situation where he is unsure of the action to take. The engineer in charge should However, where immediate action is necessary to ensure safety of the ship, its machinery and crew, it must be
18、taken by the engineer in charge. However, where immediate actioAt the completion of the watch each member should hand over(交與) to his relief(接班人員), ensuring that he is competent(能勝任的) to take over (接管) and carry out his duties effectively(有效地). At the completion of the watchReading Materials A.Keepi
19、ng WatchReading Materials A.Keeping WThe engine room should always be kept clean and in good order. The engine room should always The exhaust-gases should frequently be watched. They should be almost invisible(看不見(jiàn)的) when the engine operates under full load. The exhaust-gases should frequ*A smoky exh
20、aust indicates that the engine is either overloaded or that the fuel valves are not in proper condition. *A smoky exhaust indicates thaThe cylinder exhaust-gas temperatures should be noted and it should be confirmed(證實(shí)) that the power of the engine is well distributed among the cylinders. The cylind
21、er exhaust-gas tempeThe cylinder-jacket(氣缸水套) outlet-water temperatures should be observed and it should be seen that there are no air-locks(氣塞). The cylinder-jacket(氣缸水套) outlThe water level in the fresh-water header tank should be checked.The water level in the fresh-wIf an air-inlet pipe of a sta
22、rting valve is hotter than the others, the valve should be renewed. If an air-inlet pipe of a star*Observation(觀察) should be made of the turbo-blower lubricating-oil temperatures and pressures, also the exhaust-gas temperatures before and after the turbine. *Observation(觀察) should be madIt should be
23、 confirmed that the amount of fuel oil in the service tank is sufficient during the watch. It should be confirmed that thOpen the cocks for draining accumulation of oil in the exhaust manifold(歧管) at definite intervals. Open the cocks for draining acThe cylinder lubricators(注油器) should be examined f
24、or satisfactory operation. The piston-cooling pipes and the stuffing boxes(填料函) for the piston rods should be examined for leakage(泄漏). The cylinder lubricators(注油器) *All the pressures and temperatures indicated by various gauges and thermometers(溫度計(jì)) should be regularly observed. *All the pressures
25、 and temperaThe amount of lubricating oil in the drain tank should be checked by sounding(發(fā)聲,探測(cè)). The amount of lubricating oil If lubricating oil filters of edgewise(邊對(duì)邊的) cleaning type(自動(dòng)反沖洗式) are fitted, *the handles should be given a few turns. If lubricating oil filters of The sea water tempera
26、ture should be noted and the temperatures at(of) the lubricating oil and fresh-water coolers (should be) examined.The sea water temperature shou*A keen(敏銳的) sense(感覺(jué)、判斷力) of hearing obtained from practice is important for the engineer, depending on his ears, to detect abnormal happenings in the runn
27、ing gear. *A keen(敏銳的) sense(感覺(jué)、判斷力) of Before being used, the fuel service tank should be drained of water and residual(殘剩余; 渣滓). Before being used, the fuel se* If two tanks are installed, the empty tank should be pumped up directly it is empty. * If two tanks are installed, The gauges on the fuel
28、 oil service tanks should be watched to see that the oil supply to the injection pumps(噴油泵) is maintained. The gauges on the fuel oil ser*The vent cocks (放氣口)on the fuel injection pump lines should be opened frequently to vent any air that may have accumulated in them.*The vent cocks (放氣口)on the fuD
29、uring maneuvers, the fresh-water temperature should be regulated by throttling(節(jié)流, 調(diào)節(jié)) the sea-water supply to the fresh-water cooler. During maneuvers, the fresh-wa*Beside observing the pressure in the cooling water, regular readings should be taken from the thermometers in the various lines and th
30、e control valves regulated to maintain even(相同的) temperatures in all the jackets. *Beside observing the pressureSpecial care should be taken to stop leaks of all descriptions(描述,說(shuō)明), immediately (when) they occur. Special care should be taken tVital(重要的) components(部件) of the engine should be freque
31、ntly examined. Vital(重要的) components(部件) of tThe crankroom(曲軸箱) cover should never be allowed to open for investigation(調(diào)查, 研究) when the engine is running. The crankroom(曲軸箱) cover shoulAnd it should not be opened until at least fifteen minutes after the engine stops. Lights of high voltage or naked
32、 lights(沒(méi)有燈罩的燈) should never be used. And it should not be opened unB. Watchkeeping Duties At SeaB. Watchkeeping Duties At Sea1. Constant inspection is a precaution(預(yù)防措施) which contributes to(有助于) avoiding trouble and the following routines must be carried out at regular intervals under normal opera
33、ting conditions:1. Constant inspection is a pr2. Regularly check and record all pressures and temperatures and enter the same in the engine room log. 2. Regularly check and record *Adherence to(遵守、堅(jiān)持) differentials in temperature and pressure limits is very important. *Adherence to(遵守、堅(jiān)持) differentI
34、f a temperature or pressure is in doubt it should be checked against another instrument, a rough guess to temperature is by the feel of the hand.If a temperature or pressure i3. *Due(應(yīng)有的、適當(dāng)?shù)? consideration must be given to engine speed and to the conditions of the loading of the ship and to the clea
35、nliness of the hull(船體) when performance and records of the engine are being assessed(評(píng)定). 3. *Due(應(yīng)有的、適當(dāng)?shù)? considerationShop test reports and instruction manuals are a reliable reference and must be treated as such(同樣地). Shop test reports and instructAll records are important but particular attenti
36、on must be made to turbocharger(渦輪增壓器) revolutions, scavenge air receiver(掃氣箱) pressures and temperatures, and cylinder exhaust gas temperatures. All records are important but Consideration must be given to the calorific value(熱值) of the fuel when assessing the daily fuel consumption. Consideration
37、must be given to4. Check that the control valves for the cooling and lubricating systems are set properly. 4. Check that the control valvIf there is insufficient pressure in any system then the safety device alarm will be accelerated and the engine stopped. If there is insufficient pressAll excessiv
38、e pressure drops must be checked. All excessive pressure drops m5. *Adjustments must be made to bring any abnormally high or low temperatures to within the prescribed(規(guī)定的, 指定的) range but this must be attained gradually. 5. *Adjustments must be made tAbrupt(突然的) temperature changes can increase therm
39、al stress(應(yīng)力) and may cause trouble. Abrupt(突然的) temperature changeCheck the air temperature after the charger air cooler. Check the air temperature afteThis temperature should be as low as possible, a high temperature results in less oxygen being available for combustion and increased fuel consumpt
40、ion as well as higher exhaust gas temperatures. This temperature should be as An ideal temperature differential between the sea water inlet to the air cooler and the air outlet from the cooler is about 17. An ideal temperature different6. Care must be taken, in climates with a high humidity, that th
41、e temperature of the scavenge air is, if possible, kept above the dew point(露點(diǎn)), 6. Care must be taken, in climotherwise condensation(凝結(jié)) will form in the air receiver and the drain will require to be cracked(開(kāi)縫的) open to avoid rust formation. otherwise condensation(凝結(jié)) wilWhen water is apparent(明顯的
42、) in the air receiver then a check must be made to verify whether it is sea water or fresh water; When water is apparent(明顯的) inif it is sea water then the cooler is leaking and rectification(修正,修復(fù)) is required. if it is sea water then the co7. *Drain scavenge space and jacket drains, also piston ro
43、d glands(填料蓋箱) if there is an excess leakage of lubricating oil from the gland, 7. *Drain scavenge space and jthen the scraper(刮油環(huán)) and sealing rings(密封環(huán)) should be attended(注意,留 意) to at the first opportunity(盡早). then the scraper(刮油環(huán)) and seal8. *Check, and if necessary, adjust the rate of feed of
44、 the cylinder lubricators.8. *Check, and if necessary, a9. Check the temperature of the crankcase doors by hand.9. Check the temperature of th10. Ensure that the fuel in the daily service tanks has been properly cleaned and that water and sludge(油泥) have been drained off. Drain sludge from fuel filt
45、ers(過(guò)濾器) and purifiers(分油機(jī)). 10. Ensure that the fuel in th11. *When burning heavy fuel ensure that there is sufficient heat available to bring the viscosity(粘度) of the fuel to within the prescribed limits.11. *When burning heavy fuel e12. Ensure that vents from cooling water spaces are kept open to
46、 permit air to escape.12. Ensure that vents from coo13. Check the pressure drop across fuel and lubrication oil filters. 13. Check the pressure drop acTurn all manually operated filters and check that automatic filters are operating satisfactorily, drain sludge if necessary. Turn all manually operat
47、ed fil14. Check the pressure drop across the charge air coolers for both sea and air pressure.14. Check the pressure drop ac15. Check oil levels in governor(調(diào)速器) and other auxiliary(輔助的) equipment.15. Check oil levels in govern16. Check all high pressure fuel lines for any signs of leakage.16. Check all high pressure fu17. Check camshafts(凸輪軸), fuel pump bearings(軸承) and other small bearings for temperature
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