问题 问答题 简答题

低压厂用电部分中断时应如何处理?

答案

参考答案:

低压厂用电部分中断后,如果锅炉发生MFT、机组跳闸,则按MFT及机组跳闸故障处理;如果机组未跳闸,则应注意下列问题。

⑴机组RB动作,确认炉膛有火,应立即投油助燃,机组自动减负荷运行。

⑵确认备用辅机自启正常,否则应手动启动。

⑶检查炉水泵电流、差压、电动机腔温度及冷却水流量正常。

⑷确认跳闸空预热辅助电动机自动投入,否则应人工盘车,直至恢复正常盘车为止。

⑸注意汽包水位变化,调节汽包水位正常。

⑹待故障段低压厂用母线电源恢复后,根据要求启动跳闸辅机,恢复机组正常运行。

完形填空
完形填空
     Mr Glen is a millionaire. Five years ago,  after returning from abroad to his motherland,  he__1__up
his small company. Speaking of success, Glen often tells us a story about his__2__expensive "school"
fee. He always owes his success to it.
     At that time, Glen, who already got a Ph. Degree,  decided to return to the homeland,  starting a
company. Before__3__,  he bought a Rolex watch with the __4__made through years of work after
school and the scholarships. At the airport he had to accept the routine customs check. The watch on
his wrist was also demanded to be __5__ down for inspection. Glen knew that carrying the __6__
goods out had to pay the tax. And he worried about paying __7__  for his watch. So when he was
checked,  he told a lie that his watch was a worthless __8__. When he was __9__ of his "smarts", 
 immediately,  __10__ the presence of Glen, the officers hit the watch,  which __11__ nearly
¥100, 000,  into pieces at hearing Glen's words. Glen was amazed. __12__ he understood why, he
was taken to the office to be __13__  strictly. For many times of entry exit __14__ he knew that only
those people in the "blacklist" would "enjoy" this special treatment. The officers looked out everything
carefully in the box,  and warned him __15__ time of entry and exit he must accept the check and if
__16__ reusing and carrying fake and shoddy(劣质的)goods,  he would be charged according to law!
Suddenly, his face turned red,  and he had nothing in mind after __17__ the plane for long.
     After returning to the homeland,  he often told the story to his family, and his employees,  too. He
said that this made a deep __18__ on him, because the additional high "school" fee that he had ever
paid made him realize the value of  __19__,  which he would __20__ as the secret of his success forever.
( )1. A. set              
( )2. A. good            
( )3. A. staying          
( )4. A. books            
( )5. A. put              
( )6. A. ordinary        
( )7. A. one              
( )8. A. present          
( )9. A. afraid          
( )10. A. in              
( )11. A. paid            
( )12. A. Before          
( )13. A. appreciated    
( )14. A. conditions      
( )15. A. no matter what  
( )16. A. came out        
( )17. A. landing        
( )18. A. expression      
( )19. A. honesty        
( )20. A. remember        
B. came          
B. bad          
B. leaving      
B. things        
B. looked        
B. common        
B. it            
B. trade        
B. proud        
B. on            
B. spent        
B. After        
B. beaten        
B. experiences  
B. no matter how
B. found out    
B. flying        
B. idea          
B. lies          
B. learn        
C. went          
C. extra          
C. living        
C. savings        
C. taken          
C. specific      
C. them          
C. toy            
C. well          
C. before        
C. took          
C. If            
C. spoken        
C. experiments    
C. no matter when
C. sent out      
C. catching      
C. thought        
C. goods          
C. revise        
D. called        
D. few            
D. coming        
D. pounds        
D. lied          
D. many          
D. these          
D. fake          
D. hard          
D. after          
D. cost          
D. Though        
D. examined      
D. chances        
D. no matter why  
D. set out        
D. boarding      
D. impression    
D. things        
D. read          
单项选择题