本文選題：TRT機(jī)組 + Labview�。� 參考：《廣州大學(xué)》2012年碩士論文

【摘要】：TRT機(jī)組在鋼鐵行業(yè)中的作用十分顯著，它不僅能夠回收高爐煤氣的余壓余熱進(jìn)行發(fā)電，而且還能穩(wěn)定鍋爐壓力，減少爐況波動，使高爐穩(wěn)定高產(chǎn)。TRT機(jī)組的機(jī)械設(shè)備主要包括透平機(jī)、發(fā)電機(jī)、勵磁機(jī)以及相關(guān)的傳動軸和軸承等機(jī)械部件。由于旋轉(zhuǎn)機(jī)械設(shè)備要求精度高、工作穩(wěn)定，才能保證企業(yè)的安全生產(chǎn)，因此通過振動檢測系統(tǒng)來實時監(jiān)測TRT機(jī)組工作時的實際振動狀況是很有必要的。本課題研究出一套TRT機(jī)組在線振動監(jiān)測及故障診斷分析系統(tǒng)，全方位地監(jiān)測TRT機(jī)組的振動參數(shù)，對提高TRT機(jī)組的工作壽命以及保證企業(yè)的安全生產(chǎn)具有重大的意義。 TRT機(jī)組在線監(jiān)測及故障診斷系統(tǒng)用來監(jiān)測TRT機(jī)組的運(yùn)行狀況以及對其故障進(jìn)行診斷和分析。它主要包括信號采集、分析處理、在線動平衡、轉(zhuǎn)子故障診斷等幾方面的功能。根據(jù)目前國內(nèi)外成熟的技術(shù)和未來發(fā)展，融合當(dāng)今先進(jìn)的信號分析技術(shù)和理論，本文研究出了一套完善、可靠、高精度的信號測量與分析系統(tǒng)。 本論文詳細(xì)介紹系統(tǒng)設(shè)計的總體方案、硬件設(shè)計、軟件設(shè)計以及測試分析。以電渦流位移傳感器、壓電式加速度傳感器、光電傳感器、微電機(jī)三軸加速度傳感器、信號調(diào)放大模塊、USB數(shù)據(jù)采集卡等硬件為基礎(chǔ)，在Labview虛擬儀器平臺上開發(fā)出軟件系統(tǒng)。根據(jù)TRT機(jī)組及旋轉(zhuǎn)機(jī)械的運(yùn)動特點(diǎn)，本論文采用了不同的現(xiàn)代信號處理技術(shù)對信號的特征進(jìn)行分析與處理，同時設(shè)計多種形式的圖形顯示。在系統(tǒng)軟件中應(yīng)用了強(qiáng)大的數(shù)據(jù)處理分析功能，從而實現(xiàn)了對TRT機(jī)組的多通道分析、轉(zhuǎn)子碰磨故障診斷、動平衡計算、多信號相關(guān)分析、小波分析以及各種頻譜分析的相關(guān)應(yīng)用；同時借助Labview提供的功能節(jié)點(diǎn)以及MATLAB軟件接口，利用MATLAB信號處理函數(shù)，提高了系統(tǒng)的信號處理能力。此外，本論文還研究了系統(tǒng)的測試方法，通過兩臺高精度的轉(zhuǎn)子試驗臺以及本特利RK-4高速轉(zhuǎn)子試驗臺對TRT機(jī)組的運(yùn)行狀況進(jìn)行模擬，從八通道信號的采集處理以及高速轉(zhuǎn)子的碰磨試驗來對系統(tǒng)性能進(jìn)行較完整的測試，，并實現(xiàn)了對TRT機(jī)組測試的相關(guān)功能驗證。 研究結(jié)果表明，TRT機(jī)組振動監(jiān)測及故障診斷系統(tǒng)具有測量精度高、功能強(qiáng)大、擴(kuò)展性高、界面友好、攜帶方便、測量范圍大、可同時采集測點(diǎn)多等特點(diǎn)，并且能對不同的測點(diǎn)和設(shè)備實現(xiàn)多通道信號同步測量，基本上滿足了對TRT機(jī)組進(jìn)行振動監(jiān)測及故障診斷的預(yù)期功能。
[Abstract]:The TRT unit plays a very important role in the iron and steel industry. It can not only recover the residual pressure of blast furnace gas for generating electricity, but also stabilize the boiler pressure and reduce the fluctuation of furnace condition. The mechanical equipment for stabilizing and producing blast furnace. TRT unit mainly includes turbine generator exciter and related mechanical parts such as drive shaft and bearing. Because of the high precision and stable operation of rotating machinery equipment, it is necessary to monitor the actual vibration condition of TRT unit in real time by vibration detection system. In this paper, an on-line vibration monitoring and fault diagnosis and analysis system for TRT units is developed, which can monitor the vibration parameters of TRT units in all directions. The on-line monitoring and fault diagnosis system of TRT unit is used to monitor the operation condition of TRT unit and to diagnose and analyze its faults. It mainly includes signal acquisition, analysis and processing, online dynamic balance, rotor fault diagnosis and other functions. According to the mature technology and future development at home and abroad and the fusion of the advanced signal analysis technology and theory, a set of perfect, reliable and high precision signal measurement and analysis system has been developed in this paper. This paper introduces the system design in detail, hardware design, software design and test analysis. Based on eddy current displacement sensor, piezoelectric acceleration sensor, photoelectric sensor, triaxial acceleration sensor of micromotor and USB data acquisition card, a software system is developed on LabVIEW virtual instrument platform. According to the motion characteristics of TRT units and rotating machinery, different modern signal processing techniques are used to analyze and process the characteristics of signals, and various forms of graphic display are designed at the same time. The powerful function of data processing and analysis is applied in the system software, which realizes the multi-channel analysis, rotor rubbing fault diagnosis, dynamic balance calculation and multi-signal correlation analysis of TRT unit. At the same time, with the help of the function node provided by LabVIEW and the software interface of MATLAB, the signal processing function of MATLAB is used to improve the signal processing ability of the system. In addition, this paper also studies the test method of the system, and simulates the operation condition of TRT unit by two high precision rotor test bench and Bentley RK-4 high-speed rotor test bed. The system performance is tested by collecting and processing 8-channel signal and rubbing test of high-speed rotor, and the related function verification of TRT unit is realized. The research results show that the vibration monitoring and fault diagnosis system of TRT unit has the characteristics of high measuring precision, powerful function, high expansibility, friendly interface, convenient carrying, wide measuring range, and the ability to collect many measuring points at the same time. And the multi-channel signal synchronous measurement can be realized for different measuring points and equipments, which basically meets the expected function of vibration monitoring and fault diagnosis for TRT units.
【學(xué)位授予單位】：廣州大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TP277;TH165.3

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