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題名 | 西門子V84.2氣渦輪機空壓段及氣機段葉片再生技術探討=Refurbishment Investigations of the Compressor and Turbine Stage Blades in Siemens V84.2 Gas Turbine |
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作者 | 賴興民; | 書刊名 | 台電工程月刊 |
卷期 | 711 2007.11[民96.11] |
頁次 | 頁92-101 |
專輯 | 水、火力發電技術專輯 |
分類號 | 448.2 |
關鍵詞 | 氣機進口溫度; 動葉片; 靜葉片; 腐蝕; 潛變; 超合金; 噴銲; 含NI, Co, Fe, Cr, Al, Y之高溫抗腐蝕塗層; 等效運轉時數; 再生處理; 沖蝕; TIT turbine inlet temperature; Blade; Vane; Corrosion; Creep; Superalloy; Spraying; MCrAlY coating; EOH equivalent operating hour; Refurbishment; Erosion; |
語文 | 中文(Chinese) |
中文摘要 | 氣渦輪機機組一般運轉溫度高達1050~1150°C(TIT),因此,葉片之材料需使用具耐高溫氧化與高溫腐蝕及具抗高溫潛變之超合金材料,其中動、靜葉片通常使用析出硬化型鎳基超合金,且為增強葉片之抗高溫氧化與高溫腐蝕特性,無論動靜葉片表面皆噴銲MCrAlY塗層以增強動靜葉之抗高溫氧化及高溫腐蝕特性。動、靜葉片經25000小時(視機組型式及運轉條件而有所不同)運轉,須進行龜裂葉片之銲修及舊塗層之噴銲再生,以延長葉片之使用壽命。Siemens V84.2氣渦輪機壓縮機於進氣端之葉片表面均有塗層處理,以防範壓縮機葉片表面受腐蝕、沖蝕損壞,依廠家維護規範,空氣壓縮機動靜葉片每隔66,000EOH即需重新在葉片表面噴上塗層。 |
英文摘要 | The operation temperatures of general gas turbine are above 1050°C and up to 1150°C, therefore the turbine blades/vanes need to be made by precipitation type nickel-base superalloys for increasing the resistance of the temperature oxidation, creep and hot corrosion properties. Further more, they are also coated by MCrAlY coats for enhancing the resistance of the hot corrosion and high temperature oxidation. By following OEM maintenance guidelines, they need recoat and repair in every 25000 EOH, depending on different types of gas turbine and operating conditions, for extending the life of the blade/vane. The compressor-stage blades/vanes of Siemens V84.2 gas turbine are also coated by organic and inorganic paints to prevent corrosion and erosion. According to OEM maintenance guidelines, compressor-stage blades/vanes need to be refurbished in 66000 EOH. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。