【摘要】：液動自力式(介質(zhì)驅(qū)動)高加(高壓加熱器簡稱高加)三通閥組是“超(超)臨界火電機組關(guān)鍵閥門國產(chǎn)化”研發(fā)項目中第二類關(guān)鍵閥門,主要應(yīng)用在電廠給水循環(huán)加熱管路系統(tǒng)中,主要功能是將高加從管路系統(tǒng)中解列出來,從而實現(xiàn)保護和在線維修高加的作用。液動(自力式)入口三通閥+液動(自力式)出口三通閥閥組因為在整體系統(tǒng)設(shè)計方面、技術(shù)突破、使用性能及經(jīng)濟效益方面均具有優(yōu)勢,是超(超)臨界火電機中高加三通閥組的最佳選擇方案。到目前為止,液動自力式(介質(zhì)驅(qū)動)高加三通閥組主要依靠國外進口。對于超(超)臨界火電機組關(guān)鍵閥門中的液動自力式(介質(zhì)驅(qū)動)高加三通閥組的研發(fā),已經(jīng)成為我國火電機組發(fā)展過程中必須要解決的關(guān)鍵問題。論文中闡述了液動自力式(介質(zhì)驅(qū)動)高加三通閥組開發(fā)過程；詳細(xì)描述了針對高溫、高壓、大口徑、高性能等工況和要求特點,綜合應(yīng)用控制技術(shù),液壓傳動技術(shù),流體動力學(xué)等現(xiàn)代設(shè)計技術(shù)和多專業(yè)的相關(guān)知識,研究了整體方案的設(shè)計、三通閥門的結(jié)構(gòu)、驅(qū)動機構(gòu)、主體材料、制造和裝配工藝等具體內(nèi)容；對產(chǎn)品的設(shè)計和性能進行了設(shè)計計算及有限元分析；通過樣機試制、試驗檢驗對產(chǎn)品的設(shè)計進行確認(rèn)。開發(fā)過程充分體現(xiàn)了現(xiàn)代設(shè)計方法在產(chǎn)品設(shè)計過程中的重要作用,大大的提高了產(chǎn)品設(shè)計的可靠性和成功率,并且起到了縮短研發(fā)周期和降低研發(fā)成本的作用。產(chǎn)品已經(jīng)通過業(yè)內(nèi)專家的鑒定,并且具備市場推廣及銷售條件。論文對類似產(chǎn)品的研發(fā)有重要的參考價值。
[Abstract]:The three-way valve set of hydrodynamic self-driving (medium driven) high additive (high pressure heater) is the second kind of key valve in the research and development project of "key valves of supercritical thermal power unit". It is mainly used in the power plant water supply cycle heating pipeline system, the main function is to remove the high addition from the pipeline system, so as to realize the function of protection and online maintenance. Hydraulic (self-operated) inlet three-way valve, hydraulic (self-propelled) outlet three-way valve set has advantages in overall system design, technical breakthrough, performance and economic benefits. It is the best choice of high-and three-way valve set in super (supercritical) fire motor. So far, the hydraulic self-drive (medium-driven) high-pass valve group mainly depends on foreign imports. The research and development of hydrodynamic self-actuated (medium driven) high add three-way valve set in the key valve of supercritical thermal power unit has become a key problem that must be solved in the development process of thermal power unit in China. In this paper, the development process of hydraulic self-actuated (medium driven) high-add three-way valve group is described in detail, and the comprehensive application of control technology and hydraulic transmission technology is described in accordance with the characteristics of high temperature, high pressure, large caliber, high performance and other working conditions and requirements, such as high temperature, high pressure, large caliber, high performance and so on. Fluid dynamics and other modern design technology and multi-professional knowledge, studied the overall design, three-way valve structure, driving mechanism, main materials, manufacturing and assembly process and other specific content; The design calculation and finite element analysis of the design and performance of the product are carried out, and the design of the product is confirmed by the trial production of the prototype and the test. The development process fully reflects the important role of modern design methods in the process of product design, greatly improves the reliability and success rate of product design, and plays a role in shortening the R & D cycle and reducing R & D costs. The product has passed the appraisal of the industry expert, and has the market promotion and the sale condition. The paper has important reference value for the research and development of similar products.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TM621

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