1: What is the plant to ready for manoeuving and departure port?
离港备车的步骤
*start the second generator and after all checks, take it on load
*The third generator should be kept on standby condition
*Essential steps to be noted: Turning engine indicator cocks parameters abnormal noise
*Check system FO service and settling tanks diesel oil service tank air system LO system T/C CW system checking the fuel regulating gear & starting system
* slow turning the engine
*this must be carried out to prevent damage caused by fluid in one of the cylinders and to check the reversing mechanism
*Before beginning the slow turning obtain permission from the bridge
2, what items to be analysis on L.O?机油化验项目
*Specific gravity ,viscosity, flash point, TAN(total acid number),SAN(strong acid number) ,alkalinity, TBN( total base number) ,water content, Conradson, carbon, ash insoluble。
3 ,what cause of exhaust temperature rises in all cylinders? 整体排温高的原因
* Increased scavenge air temperature owing to inadequate air cooler function
*Fouled air and gas passages
*Inadequate fuel oil cleaning or alerted combustion characteristics of fuel
*wrong position of camshaft
4, what causes of high turbocharger speed?透平高转速的原因
*Fouled air filter(early stage of unloading the compressor)
*Fire (early stage) in the exhaust check immediately.
5, what causes of cylinder knocking?敲缸的原因
*Fuel timing too far advanced
*fuel injector valve needle sticking at open position
*Excessive carbon built up on the crown
*Broken exhaust valve
*Mechanical damage in the3 cylinder
6,what action to be taken of crankcase mist detector alarm (never cut out mist detector potentially dangerous)?油雾探测器报警采取的措施
*Inform bridge and C/E
*Stay away from crankcases
*slowdown and stop
*start turning gear immediately for at least 30 minutes to cool down
*Through investigation of mist detector crankcase abnormality and moving parts required
7, what caused of scavenge fire and action taken?扫气箱着火原因和措施
*Inform bridge and C/E
*Do not stand near the relief valves
*slow down engine ensure that the auxiliary blowers are off
*In case the fire persists stop the engine gradually to prevent risk of piston seizure
*Fire should be go off when all deposits burnt out
*keep turning the engine with cooling on to prevent seizure of moving parts
8, what action taken when crankcase explosion? (Most of the cases engine will suddenly stop upon explosion)曲轴箱爆炸的措施
*Inform bridge and chief engineer
*evacuate the E/R
*Every safe effort to be made to turn engine by turning gear or slow turning for 30 minutes to prevent seizure of moving parts
*Thorough investigation required into the cause of the explosion before re starting
9, What will you do when boiler water level was low during normal steaming condition?锅炉水位低采取的措施
*Fist start the standby feed water pump
*Second check and wash the local water level gauge
*Third check any leakage on steam pipes or safety valves
10 ,Turbo charger surging causes and preventive measures?
透平喘振原因和预防措施
* T/C surging can be divided into three main categories
* malfunction in the fuel system
*Rapid variations in the engine load
* Fuel system fuel injection system fuel line components fuel timing
*exhaust system valve exhaust passage through turbocharger and gas boiler
*scavenge air system
*Miscellaneous rapid changes in load and RPM governor
*Immediate action temporarily counteracted by blowing off
Reduce engine load by taking the T/C away from the surging line
*Preventive measures regular maintenance of items mentioned above prevent load fluctuations during ballast voyage and bad weather
*Periodical check of M/E bedplate a strength member
* Cross girder under the bearing housing
*Bolt holes
* Holding down bolts of slackening
*Chocks (fretting cracks and slackness)
如果觉得我的文章对您有用,请随意打赏。你的支持将鼓励我继续创作!