Presentation on theme: "Operations of Marine Auxiliary Boiler"— Presentation transcript:
1 Operations of Marine Auxiliary Boiler 机电系： 叶 晓 华
2 Course introduction Course Type: practice course Time : 7 hours Students: the third grade
3 The Main Content The Main Content Main Content Time 1 Basic principle and construction1 hour2Operations introduction1.5 hours3Operations practice4 hours4Sum up the main points of the lessonhalf an hour
4 Basic principle and construction Question: Please list the use of marine boilers[Main Boiler]：producing Superheated Steam(过热蒸汽) to drive main engine.[Auxiliary/Donkey Boiler] ：producing Superheated Steam(过热蒸汽) and Saturated Steam (饱和蒸汽)to drive auxiliary machinery,to heat fuel oil,lube oil,flesh water, or for air conditioner and daily use.
5 1.According to the heat source 一，Basic Types1.According to the heat source[Exhaust Boiler ] :from main engine exhaust gas[oil-burning Boiler]:from combustionQuestion: As we know,there is an exhaust boiler on board.why do we still need an oil-burning bioler?
6 2.According to the structure 一，Basic Types2.According to the structure[Smoke-tube Boiler][Water-tube Boiler][Mixed-type Boiler]
7 3. According to the water circulation 一，Basic Types3. According to the water circulation[Natural Circulating Boiler] ：The power of water cycle is from density difference.[Forced Circulating Boiler] ：The water cycle is due to pumps.
8 the natural water cycle principle Steam DrumDowncomerRiserWater DrumQuestion:which level is higher,the level in water gauage or the steam drum level?