【正文】 consumption will increase.4. last word:Whether to add put into operation high unit loads and efficient influence is very big. So, it is hoped that through the above measures of high power countermeasure, and enhance the onset of attention and with all relevant improvement in practical work.Reference: the steam turbine equipment and system , author: WuJiLan, China power publishing, publication date: in 1998. The turbine operation , write: GongYeJu power in liaoning province, China publishing power , publication date: April 1995.Author introduction: born in December, 62, graduated from xinjiang school, power has 25 years of work and training experience, 94 in turbine in 2002 as a technician, professional founded teach cultivates center dedicated, professional training as turbine in August 2005 adjustable security specialist, merged as turbine safety in February 2006 production department to until now.高壓加熱器運行中存在的問題及對策內(nèi)容摘要：火力發(fā)電廠高壓加熱器由于處于高溫高壓下工作，故較易損壞，損壞后高加不能投入運行，給水溫度將要下降，文章指出了電廠高壓加熱器存在的管子及脹口泄漏，給水自動旁路密封不佳，疏水系統(tǒng)自動投入不良等一些較普遍的問題，分析了這些問題的成因，進而提出了針對性的處理對策。檢修中發(fā)現(xiàn)，其密封用堵料被沖跑，且筒壁被水沖刷成坑洼嚴重。 　?。?）維持高加運行的正常水位，是保證高加正常運行的重要條件。高加隨機啟動時，負荷逐漸增加，抽汽溫度、壓力、流量及加熱器水溫是逐漸上升的，金屬的溫升可控制在較小范圍內(nèi)，減少了管系與管板的溫差，可避免管系脹口松弛和管系膨脹不均而引起的漏泄?！镀啓C運行》，編寫：遼寧省電力工業(yè)局，中國電力出版社出版，出版日期：1995年4月。對現(xiàn)存的疏水管道特別是彎頭的沖蝕損害，可將調(diào)節(jié)閥后的管道和全部疏水管的彎頭壁加厚，彎頭還可采用局部擴容減速或襯管，用三通代替90176。 關于高加疏水系統(tǒng)　　解決高加疏水系統(tǒng)的三大通病———堵塞、振動及磨損是確保高加安全運行、提高高加投入率的重要因素。2．1 countermeasures1. preface Steam turbine thermal heating system is adopted to improve the unit operation of the important means of economic. Back to heat heating system operation reliability and performance directly affected the height, plete unit operation of economy TouRuLv is economic indicators heater in important evaluation indexes. As coalfired power plants to the large capacity, high parameter unit development, high pressure heater add) (hereinafter referred to as high as water supply under pressure and temperature rise accordingly?；責峒訜嵯到y(tǒng)的運行可靠性和運行性能的高低，直接影響整套機組的運行經(jīng)濟性，加熱器的投入率是經(jīng)濟指標中重要的一項考核指標。2．2因此，各電廠應禁止長期無水位運行。把溫降限制值小于溫升值，是由于停用時，總是先停抽汽，而給水仍通過加熱器，此時管壁溫度高于給水溫度，較冷的給水流經(jīng)管子，使管子首先冷卻收縮，容易在管子和管板的結合面上造成破壞。3.　?。?）加大疏水通流面積。疏水管沖刷嚴重，振動很大，其碳鋼彎頭頻繁被沖壞。為此，除了在高加的設計、制造和安裝時必須保證質(zhì)量外，還要在運行維護等方面采取必要的措施，才能確保高加的長期安全運行。 Leak。如因故障必須停用高加時，應按照制造廠規(guī)定的高加停用臺數(shù)和負荷的關系，或根據(jù)汽輪機抽汽壓力來確定機組的允許最大出力。 水位計及水位訊號裝置不能正常運行　　水位計漏是各電廠的普遍問題，我廠原老廠的高加水位計經(jīng)常出現(xiàn)泄露現(xiàn)象，某電廠1號機高加自投運以來一直漏，電接點投運后不久即壞，看不準，反映水位計與實際情況不符。