發(fā)布時(shí)間：2018-04-25 03:25

  本文選題：三偏心 + 蝶閥　； 參考：《浙江工業(yè)大學(xué)》2012年碩士論文

【摘要】：大型空分設(shè)備配套的專用閥門具有專業(yè)性強(qiáng)、制造難度大的特點(diǎn)。隨著國(guó)際上空分設(shè)備的大型化,配套的空分設(shè)備用閥門也從中小口徑向大口徑(DN1600)發(fā)展；再者,由于大型空分設(shè)備逐步向內(nèi)壓縮流程發(fā)展,氣體產(chǎn)品壓力等級(jí)的提高,對(duì)空分配套閥門提出了從低壓到高壓的要求。 開發(fā)大型空分配套用超低溫三偏心硬密封蝶閥可以加快空分設(shè)備配套部機(jī)國(guó)產(chǎn)化的步伐,不僅可以提高自己的核心技術(shù)與核心競(jìng)爭(zhēng)力,還關(guān)系到空分設(shè)備的技術(shù)提升,具有極其重要的意義。 論文根據(jù)大型空分配套場(chǎng)合的工藝特點(diǎn),對(duì)超低溫三偏心硬密封蝶閥進(jìn)行理論研究。分析三偏心蝶閥的結(jié)構(gòu),得出密封面外輪廓線的方程,并對(duì)截面長(zhǎng)軸與圓錐母線構(gòu)成的夾角進(jìn)行分析,從而導(dǎo)出三個(gè)偏心之間的函數(shù)關(guān)系,并對(duì)閥門的干涉進(jìn)行進(jìn)一步研究,開發(fā)了快速驗(yàn)證程序。 研究了超低溫使用場(chǎng)合的材料、工藝處理及三偏心蝶閥閥體、密封圈的加工工藝,開發(fā)了相應(yīng)的工裝夾具。 分析了三偏心蝶閥的力學(xué)性能,并結(jié)合軸的扭矩進(jìn)行建模和仿真。 試制了超低溫三偏心硬密封蝶閥,經(jīng)壓力性能試驗(yàn),符合設(shè)計(jì)要求,并跟蹤現(xiàn)場(chǎng)的實(shí)際使用情況,完全滿足工況要求。 通過(guò)本論文的研究,可向不同口徑、不同壓力等級(jí),以及常溫等方面進(jìn)行衍生設(shè)計(jì)。
[Abstract]:The special valves for large air separation equipment are specialized and difficult to manufacture. With the large-scale development of the international air separation equipment, the matching valves for air separation equipment have also developed from medium to small caliber to large diameter DN1600; moreover, because of the gradual development of the large air separation equipment to the internal compression process, the pressure level of gas products has been raised. The requirements from low pressure to high pressure are put forward for air separation matching valves. The development of ultra-low temperature three-eccentricity hard seal butterfly valve for large-scale air distribution can speed up the localization of air separation equipment. It can not only improve its core technology and core competitiveness, but also relate to the technical upgrading of air separation equipment. Of great significance. According to the technological characteristics of large air separation system, this paper studies three eccentric hard sealing butterfly valves at very low temperature. The structure of three-eccentricity butterfly valve is analyzed, the equation of outer contour line of sealing surface is obtained, and the angle between section long axis and conical busbar is analyzed, the functional relation between three eccentricities is derived, and the interference of valve is further studied. A fast verification program is developed. The material, process treatment and the processing technology of three eccentric butterfly valve body and sealing ring were studied in this paper, and the corresponding fixture was developed. The mechanical properties of triple eccentric butterfly valve are analyzed, and the model and simulation of shaft torque are presented. The ultra-low temperature three-eccentric hard seal butterfly valve has been manufactured. The pressure performance test shows that the valve meets the design requirements and tracks the actual application situation in the field to fully meet the requirements of the working conditions. Through the research of this paper, we can design different caliber, different pressure grade and room temperature.
【學(xué)位授予單位】：浙江工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH134

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本文編號(hào)：1799550