问题 问答题 简答题

分析惰气含氧量高故障的原因并排除。

答案

参考答案:

原因:

(1)热油锅炉低负荷燃烧,空气量过大;

(2)风机吸入漏入新鲜空气;

(3)惰气发生器柴油系统油压低,雾化效果差,燃烧不充分或含氧量微量调节器未整定好;

(4)测氧分析仪出故障;

(5)油舱出现真空,吸入外界空气。

排除:

(1)检查锅炉燃烧排烟情况,提高热负荷,调节空气量。

(2)确认风机吸入口侧空气进气阀关闭;

(3)调节柴油燃烧器,重新调整含氧微调器;

(4)检查测氧分析仪,重新调整含氧报警值;

(5)提高惰气压力和惰气量或减少货油外输速度。

完形填空
完形填空。
     In a land far away, once upon a time there was great poverty (贫困), and only the rich could manage
without great   1  . Three of those rich men and their servants were   2   together on a road when they
came to a very   3   village.
     The first could not stand seeing the poverty,   4   he took all the gold and jewels from his wagons (四
轮载重马车) and shared   5   out among the villagers. He wished them all the best of luck, and he left.
     The second rich man, seeing the   6   situation, stopped for a short time and gave   7   all his food and
drink, since he   8   see that money would be of little   9   to them. He made sure that they each  10  their
fair share and would have enough food to  11  for some time. Then, he left.
     The third rich man, on seeing such poverty,  12  and went straight through the  13  without stopping.
The two other rich men saw this from a distance and commented with each other  14  the third rich man
lacked sympathy. It was  15  that they themselves had been there to offer help. 
     However, three days later, they  16  the third rich man,who was coming in the opposite direction. He
was  17  travelling quickly, but his wagons,  18  the gold and valuables they had been  19 , were now full
of farming tools and bags of  20 . He was rushing back to help them out of poverty.
( )1. A. loss        
( )2. A. standing    
( )3. A. faraway     
( )4. A. unless      
( )5. A. them        
( )6. A.  curious    
( )7. A. the villagers
( )8. A. could       
( )9. A. interest    
( )10. A. returned    
( )11. A. remain      
( )12. A. turned back 
( )13. A. village     
( )14. A. whether     
( )15. A. good        
( )16. A. welcomed    
( )17. A. still       
( )18. A. except      
( )19. A. loading     
( )20. A. food        
B. expectations
B. travelling  
B. poor        
B. because     
B. anything    
B. worrying    
B. his servants
B. might       
B. concern     
B. gained      
B. last        
B. set out     
B. land        
B. how         
B. certain     
B. met         
B. already     
B. instead of  
B. treasuring        
B. jewels      
C. success   
C. gathering 
C. different 
C. so        
C. nothing   
C. dangerous 
C. the others
C. should    
C. use       
C. offered   
C. supply    
C. showed off
C. field     
C. where     
C. true      
C. accepted  
C. always    
C. apart from       
C. carrying  
C. money     
D. problems  
D. running   
D. ancient   
D. if        
D. those     
D. puzzling  
D. the rest  
D. must      
D. attraction                 
D. received  
D. share     
D. speeded   
D. road      
D. when      
D. strange   
D. persuaded 
D. indeed    
D. along with
D. earning   
D. seeds     
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