本文選題：水輪發(fā)電機(jī)組 + 檢修　； 參考：《西安理工大學(xué)》2017年碩士論文

【摘要】：機(jī)組盤車在水輪發(fā)電機(jī)組檢修中是最主要的技術(shù)工藝之一。盤車質(zhì)量和精度直接影響今后機(jī)組運(yùn)行的穩(wěn)定性和可靠性。目前,機(jī)組盤車仍以傳統(tǒng)的圓周8分點(diǎn)停頓測量和人工分析為主,測量誤差較大、原因分析主觀性較大、盤車調(diào)整方案的偏差較大且效率較低。本文研究和開發(fā)了一種軸線連續(xù)測量以及結(jié)果自動(dòng)分析的盤車測量分析系統(tǒng),用以改進(jìn)目前傳統(tǒng)盤車中存在的上述諸多問題。(1)分析懸式組擺度計(jì)算公式和軸線測量方法,優(yōu)化傘式機(jī)組擺度計(jì)算公式。在分析和總結(jié)傳統(tǒng)懸式機(jī)組盤車原理、擺度計(jì)算公式和軸線調(diào)整方法的基礎(chǔ)上,分析傘式機(jī)組與懸式機(jī)組的不同點(diǎn),充分考慮傘式水輪發(fā)電機(jī)組上導(dǎo)測點(diǎn)與鏡板之間的距離,并分析歸納了推力凈擺度、法蘭凈擺度和水導(dǎo)凈擺度的計(jì)算公式,有效減小了擺度計(jì)算誤差。(2)優(yōu)化盤車測量數(shù)據(jù)采集方法和數(shù)據(jù)處理算法。為了能夠在機(jī)組盤車停點(diǎn)或者不停點(diǎn)轉(zhuǎn)動(dòng)過程中實(shí)現(xiàn)同步采樣,提出了一種基于可控通道快速掃描的A/D芯片偽同步采集方法,達(dá)到所需同步采樣指標(biāo);設(shè)計(jì)了與之配套的外圍模擬信號(hào)調(diào)理和鍵相角度信號(hào)發(fā)生電路;提出基于粒子群盤車擬合數(shù)據(jù)優(yōu)化算法,解決了對盤車擺度準(zhǔn)確計(jì)算和高點(diǎn)直接判斷問題,兩種方法通過仿真模擬達(dá)到預(yù)期效果,并將其應(yīng)用在自動(dòng)化盤車測量分析系統(tǒng)軟件中。(3)完成自動(dòng)化盤車測量分析系統(tǒng)的工程實(shí)踐與應(yīng)用。自動(dòng)化盤車測量系統(tǒng),在懸式機(jī)組和傘式機(jī)組盤車實(shí)踐中進(jìn)行應(yīng)用,盤車數(shù)據(jù)處理和軸線調(diào)整符合規(guī)程規(guī)范要求。該系統(tǒng)具有一定的使用價(jià)值和進(jìn)一步深入研究的參考價(jià)值。
[Abstract]:Unit wheel is one of the most important technology in the maintenance of hydroelectric generating set. The quality and precision of the rolling stock directly affect the stability and reliability of the unit operation in the future. At present, the traditional standstill measurement and manual analysis of eight points around the circle are still the main methods for the unit, the measurement error is large, the subjective analysis is larger, the deviation of the adjustment scheme is large and the efficiency is low. This paper studies and develops a kind of measuring and analyzing system for continuous axis measurement and automatic analysis of the results, which is used to improve the problems mentioned above in the traditional trailers. (1) the formula of pendulum calculation and the method of axis measurement are analyzed. Optimization of the formula for the calculation of the pendulum of the umbrella unit. On the basis of analyzing and summing up the principle of traditional hanging turbine, the calculation formula of pendulum and the adjustment method of axis, the differences between the umbrella unit and the suspension unit are analyzed, and the distance between the upper guide point and the mirror plate of the umbrella turbine generator is fully considered. The calculation formulas of thrust net swing, flange net swing and hydraulic conductivity are analyzed and summarized, which can effectively reduce the error of pendulum calculation. (2) the data acquisition method and data processing algorithm are optimized. In order to realize synchronous sampling in the process of stopping point or turning point, a pseudo-synchronous acquisition method based on fast scanning of controllable channel is proposed to achieve the required synchronous sampling index. The peripheral analog signal conditioning and key-phase angle signal generating circuit are designed, and the optimization algorithm based on particle swarm optimization is proposed to solve the problem of accurate calculation of wheel swing and direct judgment of high point. The two methods achieve the desired results through simulation, and are applied to the software of the automated trailers measurement and analysis system. (3) the engineering practice and application of the automated trailers measurement and analysis system are completed. The automatic measuring system is applied in the practice of the hanging unit and the umbrella unit. The data processing and axis adjustment of the truck meet the requirements of the specification. This system has certain use value and further research reference value.
【學(xué)位授予單位】：西安理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM312

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 彭鋮;傅廣澤;劉思遠(yuǎn);周玉龍;;基于粒子群算法的水電機(jī)組連續(xù)盤車數(shù)據(jù)處理方法研究[J];中國農(nóng)村水利水電;2015年09期

2 劉潤根;楊虹;李輝;白亮;張宇飛;;水電站機(jī)組智能盤車系統(tǒng)設(shè)計(jì)與應(yīng)用[J];中國水利水電科學(xué)研究院學(xué)報(bào);2015年01期

3 李小明;;小型立式水輪發(fā)電機(jī)組盤車與機(jī)組振動(dòng)的關(guān)系[J];技術(shù)與市場;2014年08期

4 梁金波;;三峽地下電站水輪發(fā)電機(jī)組盤車[J];大電機(jī)技術(shù);2013年06期

5 趙環(huán)宇;宮玉龍;;回龍機(jī)組推力頭鏡板返修及機(jī)組盤車調(diào)整擺度工藝技術(shù)研究[J];上海大中型電機(jī);2013年01期

6 孫浩鵬;;基于RFID的水輪機(jī)盤車數(shù)據(jù)采集方法研究[J];長春工程學(xué)院學(xué)報(bào)(自然科學(xué)版);2012年03期

7 李朝新;周昊;;新型自動(dòng)盤車裝置在烏江流域水電站中的運(yùn)用[J];貴州水力發(fā)電;2012年03期

8 鄧金榮;;新安江電廠2號(hào)機(jī)軸線處理方法[J];廣東科技;2012年09期

9 孟安波;劉秀良;閔占奎;徐海波;;水電機(jī)組全自動(dòng)智能盤車系統(tǒng)設(shè)計(jì)與應(yīng)用[J];大電機(jī)技術(shù);2012年01期

10 劉衛(wèi)華;;光照水電站機(jī)組盤車特點(diǎn)分析[J];長江工程職業(yè)技術(shù)學(xué)院學(xué)報(bào);2011年03期

相關(guān)碩士學(xué)位論文 前6條

1 何，

本文編號(hào)：2066073