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汽輪發(fā)電機組密封油系統(tǒng)的異常情況分析及預(yù)防措施.doc

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汽輪發(fā)電機組密封油系統(tǒng)的異常情況分析及預(yù)防措施,                 摘 要   發(fā)電機密封油系統(tǒng)做為汽輪發(fā)電機組中一個主要系統(tǒng),如果運行不穩(wěn)定,將造成漏氫或發(fā)電機內(nèi)部進油的情況發(fā)生,同類型機組甚至出現(xiàn)著火的事故?!  ≡S昌電廠2×210mw汽輪發(fā)電機組在新機組試運初期,由于對密封油系統(tǒng)故障分析不徹底,連續(xù)多...
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汽輪發(fā)電機組密封油系統(tǒng)的異常情況分析及預(yù)防措施

                 摘     要

   發(fā)電機密封油系統(tǒng)做為汽輪發(fā)電機組中一個主要系統(tǒng),如果運行不穩(wěn)定,將造成漏氫或發(fā)電機內(nèi)部進油的情況發(fā)生,同類型機組甚至出現(xiàn)著火的事故。
   許昌電廠2×210MW汽輪發(fā)電機組在新機組試運初期,由于對密封油系統(tǒng)故障分析不徹底,連續(xù)多次解體檢查平衡閥,增加了運行、維護勞動量,但是效果并不明顯。通過運行專業(yè)進行數(shù)據(jù)采集,對發(fā)電機密封油系統(tǒng)溫度、壓力、油箱油位、平衡閥異常情況詳細記錄,進行科學(xué)的邏輯分析與推理,準確判斷出設(shè)備故障,為檢修工作指明了方向,大大降低了檢修勞動強度,提高工作效率,確保了機組安全、穩(wěn)定、經(jīng)濟運行。同時為國內(nèi)同類型機組運行及維護起到一定的借鑒作用。
 
關(guān)鍵詞:發(fā)電機組密封油系統(tǒng) ,異常情況 ,分析,預(yù)防措施。 


 

Analysis and Preventive measures for the Abnormalities of Turbo Generator Sealing Oil System
Abstract
   Generator sealing oil system for turbine generator unit of a main system, if the operation is not stable, will cause the hydrogen leakage or generator internal oil inlet condition occurs, the same type of unit or even fire accident.
   The Xuchang power plant 2 210MW turbo-generator in trial operation of new unit early, due to the sealing oil system fault analysis is not thorough, successive inspection balance valve, increased operation, maintenance work, but the effect is not obvious. By running the professional data collection, to the sealing oil system of the generator temperature, pressure, oil tank level, balance valve anomalies recorded in detail, undertake scientific analysis and logic reasoning, accurate judgement of equipment fault, for overhaul job points to clear direction, greatly reduces the labor intensity of maintenance, improve work efficiency, ensure the safety, stability of unit, economic operation. At the same time for the same type of domestic plant operation and maintenance play a certain reference role.
Key words: generator sealing oil system, abnormal condition, analysis, preventive measures.

 

目    錄
中文摘要…………………………………………………………………………………….Ⅰ
1. 緒論……………………………………………………………………………………… 1
  1.1 課題的背景及意義............................................................ 1
  1.2本論文主要研究內(nèi)容...................................................1
2. 210MW汽輪發(fā)電機組設(shè)備簡介.....................................2
3.發(fā)電機密封油系統(tǒng)的運行技術(shù)要點................................. 7
  3.1 啟動前的準備、檢查及恢復(fù).................................................. 7
  3.2密封油系統(tǒng)投運.............................................................. 7
  3.3密封油的維護:............................................................... 8
  3.4密封油系統(tǒng)停止.............................................................. 8
  3.5對氫側(cè)回油箱異常情況的分析密封油系統(tǒng)..................................... 8
4.發(fā)電機密封瓦磨損情況及分析  ...................................... 11
  4.1 #1機發(fā)電機密封瓦異常情況..................................................11
  4.2停機后維護人員檢查結(jié)果.....................................................11
  4.3氫側(cè)汽端回油溫度異常情況分析:.............................................11
  4.4空側(cè)汽端油壓變化情況分析.................................................. 12
  4.5對氫側(cè)回油箱異常情況的分析................................................ 12
  4.6對發(fā)電機氫氣補充量異常情況分析............................................13
  4.7對發(fā)電機密封瓦磨損情況總結(jié)分析............................................13
5.防止發(fā)電機密封瓦磨損采取措施........................................14
  5.1檢修方面.................................................................... 14
  5.2運行操作方面................................................................14
6. 結(jié)論..........................................................................16
參考文獻........................................................................ 17
致謝...............................................................................18