【摘要】：核電是清潔能源,積極推進(jìn)核電建設(shè)已成為我國(guó)重要的能源戰(zhàn)略方針。核電設(shè)備是核電建設(shè)的基礎(chǔ),核電閥門在核電設(shè)備中占很大比重。隨著核電閥門的需求量逐漸增多,提高核電閥門的可靠性勢(shì)在必得。然而,目前一些傳統(tǒng)的可靠性分析方法應(yīng)用于核電設(shè)備時(shí),由于核電設(shè)備的特殊性,這些方法和技術(shù)均有其各自的不足�；谀：碚摰目煽啃苑治隹梢栽谝欢ǔ潭壬蠌浹a(bǔ)這些傳統(tǒng)方法的不足之處。 本文簡(jiǎn)要介紹了模糊理論和可靠性的基本理論及其研究現(xiàn)狀,工程應(yīng)用特點(diǎn),國(guó)內(nèi)外核電閥門的發(fā)展?fàn)顩r。然后介紹了FTA,FMECA和模糊綜合評(píng)判法的分析步驟和應(yīng)用流程。接著以核電站的蝶閥為示例,闡述FTA技術(shù)在核電閥門研究中應(yīng)用的特點(diǎn)及方法,對(duì)核級(jí)蝶閥的故障模式,原因,影響危害度進(jìn)行分析,根據(jù)分析結(jié)果,對(duì)引起核級(jí)蝶閥失效的所有故障提出改進(jìn)措施和方法,并為后面的核級(jí)蝶閥的安全性評(píng)估作準(zhǔn)備。對(duì)核級(jí)蝶閥的安全性評(píng)估,首先對(duì)核級(jí)蝶閥進(jìn)行FMECA分析,得出FMECA報(bào)表,在此基礎(chǔ)上,運(yùn)用模糊綜合評(píng)判法對(duì)其進(jìn)行安全性分析,獲得安全性評(píng)分。最后總結(jié)出能持續(xù)改進(jìn)核級(jí)蝶閥可靠性和安全性的循環(huán)過(guò)程圖,進(jìn)而強(qiáng)調(diào)在研究一般性產(chǎn)品中,這種循環(huán)都是有價(jià)值的,能持續(xù)的經(jīng)濟(jì)有效的提高產(chǎn)品的質(zhì)量和可靠性。
[Abstract]:Nuclear power is a clean energy, and actively promoting nuclear power construction has become an important energy strategy in China. Nuclear power equipment is the basis of nuclear power construction, nuclear power valves in nuclear power equipment account for a large proportion. With the increasing demand for nuclear valves, it is necessary to improve the reliability of nuclear valves. However, when some traditional reliability analysis methods are applied to nuclear power equipment, due to the particularity of nuclear power equipment, these methods and technologies have their own shortcomings. The reliability analysis based on fuzzy theory can remedy the shortcomings of these traditional methods to some extent. This paper briefly introduces the basic theory of fuzzy theory and reliability, the present situation of research, the characteristics of engineering application, and the development of nuclear power valves at home and abroad. Then the analysis steps and application flow of FTAA FMECA and fuzzy comprehensive evaluation method are introduced. Then taking the butterfly valve of nuclear power plant as an example, this paper expounds the characteristics and methods of the application of FTA technology in the research of nuclear power valve, analyzes the failure mode, cause and influence hazard of nuclear butterfly valve, and according to the analysis result, The improvement measures and methods for all failures of nuclear butterfly valve are put forward, and the safety assessment of nuclear butterfly valve is made. To evaluate the safety of nuclear butterfly valve, first of all, the FMECA analysis of nuclear butterfly valve is carried out, and the FMECA report is obtained. On the basis of this, fuzzy comprehensive evaluation method is used to analyze the safety of nuclear butterfly valve and the safety score is obtained. Finally, the paper summarizes the cycle process diagram which can continuously improve the reliability and safety of nuclear butterfly valve, and then emphasizes that this cycle is valuable in the study of general products, and can continuously improve the quality and reliability of the product economically and effectively.
【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH134

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 曾紀(jì)棟;光刻機(jī)雙工件臺(tái)系統(tǒng)的FMECA分析[D];電子科技大學(xué);2013年

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本文編號(hào)：2189769