本文關(guān)鍵詞： 水輪機調(diào)速器 GE FC5000主配壓閥 BRX20系列微機調(diào)節(jié)器 油壓裝置　出處：《河北工程大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：水輪機調(diào)速系統(tǒng)是水輪發(fā)電機組的輔助控制系統(tǒng)，是水輪發(fā)電機組正常工作的重要輔助系統(tǒng)。該控制系統(tǒng)工作性能優(yōu)良，才能保證機組的安全運行。水輪發(fā)電機組及其控制設(shè)備從最初的完全進口國外設(shè)備到目前基本完全國產(chǎn)化。2012年11月金沙江向家壩水電站國產(chǎn)單機800MW巨型機組投運成功，為我國水電設(shè)備制造豎起新的里程碑。 四川大渡河安谷水電站工程的開發(fā)任務(wù)為發(fā)電、防洪、航運、灌溉和供水等。電站裝機容量772MW，裝設(shè)4臺單機容量190MW的軸流轉(zhuǎn)槳式水輪發(fā)電機組和1臺單機容量12MW的軸流轉(zhuǎn)槳式水輪發(fā)電機組。單機容量190MW的軸流轉(zhuǎn)槳水輪發(fā)電機組，水輪機部分由東方電機生產(chǎn)，是目前國產(chǎn)單機最大軸流轉(zhuǎn)槳水輪機。武漢長江控制設(shè)備研究所有限公司中標(biāo)調(diào)速器項目。 本文詳細介紹基于進口GE FC5000主配壓閥和貝加萊X20系列微機調(diào)節(jié)器的WDST 200 6.3型調(diào)速器的開發(fā)過程，2014年3月，，該項目第1臺調(diào)速器工廠驗收合格，各項指標(biāo)均滿足國家調(diào)速器驗收標(biāo)準(zhǔn)。結(jié)合安谷調(diào)速器項目，本文詳細闡述了大型調(diào)速器機械液壓部分和油壓裝置的選型計算方法，介紹調(diào)速器機械液壓系統(tǒng)原理圖設(shè)計方法，調(diào)速器集成式液壓集成塊設(shè)計方法。該調(diào)速器采用兩個電磁比例閥作為電液轉(zhuǎn)換器，作為一級液壓放大元件，進口GE主配壓閥作為二級液壓放大元件，配套油壓裝置采用3臺大流量螺桿泵加2臺小流量螺桿泵方案。 雙冗余設(shè)計思路普遍應(yīng)用于國內(nèi)大型調(diào)速器，并取得了良好的應(yīng)用效果，本文詳細介紹調(diào)速器電液轉(zhuǎn)換器、微機調(diào)節(jié)器、調(diào)速器電源系統(tǒng)等雙冗余設(shè)計在安谷調(diào)速器的應(yīng)用。該調(diào)速器采用自適應(yīng)變參數(shù)并聯(lián)PID調(diào)節(jié)規(guī)律，使調(diào)速器具有良好的調(diào)節(jié)品質(zhì)。調(diào)速器70%的故障都是由于系統(tǒng)內(nèi)油質(zhì)污染、劣化導(dǎo)致的，我們采用一系列解決方案保證系統(tǒng)油質(zhì)清潔。另外考慮到調(diào)速器壓力罐可能出現(xiàn)空氣安全閥誤動作等導(dǎo)致系統(tǒng)失壓，導(dǎo)致機組飛逸等情況，我們專門給事故配壓閥設(shè)置一臺事故壓力罐以保證機組安全運行。本文詳細介紹了節(jié)流技術(shù)在調(diào)速器機械液壓系的應(yīng)用、大型調(diào)速系統(tǒng)驗收試驗中遇到特殊問題的解決方案，本文對于大型機組調(diào)速器開發(fā)設(shè)計、驗收安裝、維護運行都具有一定借鑒意義。
[Abstract]:The hydraulic turbine speed regulation system is the auxiliary control system of the water turbine generator set and the important auxiliary system of the water turbine generator set working normally. The control system has excellent working performance. Only in order to ensure the safe operation of the unit. Hydroelectric generator set and its control equipment from the original completely imported foreign equipment to the present basically completely domestic. November 2012 Jinshajiang Xiangjiaba hydropower station single machine 80. The 0MW giant unit has been successfully put into operation. A new milestone has been erected for the manufacture of hydropower equipment in China. The development tasks of Angu Hydropower Station in Dadu River, Sichuan Province are power generation, flood control, shipping, irrigation and water supply, etc. The installed capacity of the power station is 772 MW. Four axial flow propeller type hydrogenerator units with a single unit capacity of 190MW and one axial flow propeller type hydrogenerator unit with a single unit capacity of 12 MW are installed, and the shaft flow propeller turbine generator set with a single unit capacity of 190MW is installed. The turbine is produced partly by Dongfang motor and is the largest single shaft flow propeller turbine made in China at present. Wuhan Yangtze River Control equipment Research Institute Co., Ltd has won the bid for governor project. This paper introduces in detail the development process of the WDST type 200m 6.3 governor based on the imported GE FC5000 main pressure distribution valve and the Begaard X20 series microcomputer regulator. In March 2014, the first governor factory of the project passed the acceptance test, each index met the national governor acceptance standard. Combined with the Angu governor project. In this paper, the selection and calculation method of the hydraulic part and the oil pressure device of the large speed governor are described in detail, and the design method of the schematic diagram of the hydraulic system of the governor is introduced. The governor adopts two electromagnetic proportional valves as the electro-hydraulic converter, as the first stage hydraulic amplifying element, and the imported GE main pressure distribution valve as the secondary hydraulic amplifying element. Three large flow screw pumps and two small flow screw pumps are used in the oil pressure system. The dual redundancy design idea is widely used in large speed governor in China, and good application effect has been obtained. This paper introduces the governor electro-hydraulic converter and microcomputer regulator in detail. The double redundancy design of governor power supply system is used in the application of Aegu governor, which adopts adaptive variable parameter parallel PID regulation rule. The governor has a good quality of regulation. Governor 70% faults are due to oil pollution in the system, deterioration caused. We use a series of solutions to ensure the oil quality of the system clean. In addition, considering the governor pressure tank may appear air safety valve misoperation, such as system loss of pressure, resulting in unit flight and so on. We specially set up an accident pressure tank to ensure the safe operation of the unit. This paper introduces the application of throttling technology in the hydraulic system of governor in detail. The solution to the special problems encountered in the acceptance test of large speed regulating system is of certain reference significance for the development design acceptance installation and maintenance operation of the governor of large scale unit.
【學(xué)位授予單位】：河北工程大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TV734.4

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