本文選題：全球型水輪機　切入點：轉(zhuǎn)輪室吊裝　出處：《人民黃河》2017年07期

【摘要】：以三門峽水電站1~#機組為例,探究了國內(nèi)首臺全球型水輪機大修的關(guān)鍵技術(shù)問題:以技術(shù)攻關(guān)的形式,對薄壁鋼板焊接結(jié)構(gòu)轉(zhuǎn)輪室吊裝及變形控制、水輪機轉(zhuǎn)輪葉片裙邊高精度修復(fù)、轉(zhuǎn)輪體多功能調(diào)節(jié)支墩研制、激光測圓裝置的研制等,提出了行之有效的檢修方法和施工工藝,縮短了檢修工期,為其他機組增容改造提供了依據(jù),在取得巨大經(jīng)濟效益的同時,形成了《全球型水輪機組檢修規(guī)程》(QB/SSD 01—2012)。將改造后的3#機組的穩(wěn)定性監(jiān)測數(shù)據(jù)與大修后的1~#機組穩(wěn)定性試驗監(jiān)測數(shù)據(jù)對比表明:在空載以及帶負荷工況下的擺度及水平振動均滿足要求;上機架垂直方向振動在空載以及低負荷工況下(20 MW及以下)振動較大,1~#機組大修后與改造后的3~#機組試驗數(shù)據(jù)一致,從而印證了國內(nèi)首次全球型水輪機大修的成功。
[Abstract]:Taking the No. 1 unit of Sanmenxia Hydropower Station as an example, this paper probes into the key technical problems in the overhaul of the first global hydraulic turbine in China: hoisting and deformation control of the runner chamber of welded thin-walled steel plate in the form of technical tackling.The high precision repair of blade skirt of hydraulic turbine runner, the development of multi-function regulating supporting pier of runner body, the development of laser circle measuring device, etc., the effective maintenance method and construction technology are put forward, and the maintenance period is shortened.This paper provides the basis for the capacity increase and transformation of other generating units, and at the same time obtains great economic benefits, and forms the maintenance rules for Global hydraulic Turbine Units (QB / SSD 01-2012).By comparing the stability monitoring data of the retrofitted power unit with that of the 1 # unit after overhaul, it is shown that the shimmy and horizontal vibration of the unit under no-load and load conditions meet the requirements;The vertical vibration of the upper frame is in accordance with the experimental data of the 3 # unit after the overhaul of the unit under no-load and low load conditions. The results show that the first overhaul of the global turbine in China is successful.
【作者單位】： 三門峽黃河明珠(集團)有限公司;
【分類號】：TV734.1;TV738
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本文編號：1728020