本文選題：變壓器　切入點(diǎn)：器身壓緊　出處：《浙江工業(yè)大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：變壓器是電力系統(tǒng)中的重要組成部分,變壓器的穩(wěn)定性和可靠性直接關(guān)系著電網(wǎng)系統(tǒng)運(yùn)行的穩(wěn)定性和可靠性,而變壓器器身的壓緊程度又決定著變壓器在短路情況下能夠承受短路力的能力大小。因此對變壓器器身壓緊結(jié)構(gòu)和器身壓緊工藝進(jìn)行改進(jìn)研究,不僅對提高變壓器的生產(chǎn)效率有幫助,而且對整個電網(wǎng)的安全性和經(jīng)濟(jì)性具有重要的作用。本文通過對變壓器在短路情況下器身所受到的軸向力進(jìn)行深入的分析和研究,同時對軸向預(yù)緊力的選取原則以及計(jì)算方法進(jìn)行了探討。結(jié)合目前國內(nèi)普遍采用的器身壓緊工藝,對公司現(xiàn)有的器身壓緊結(jié)構(gòu)、壓緊工藝以及器身壓緊存在的問題進(jìn)行分析和改進(jìn),在器身壓緊結(jié)構(gòu)方面,將原先采用的壓釘式壓緊結(jié)構(gòu)改成支板加絕緣墊塊的形式,并且在壓緊位置和壓緊點(diǎn)數(shù)量上都有改進(jìn),同時改進(jìn)與壓緊有關(guān)的材料、工裝及附件；在器身壓緊工藝方面,針對上鐵軛下端面與壓板之間不夠緊實(shí)的問題,提出獨(dú)創(chuàng)式的軟管輔助壓緊工藝模式、壓緊復(fù)核模式、液壓壓緊和氣壓壓緊系統(tǒng)等。采用對比試驗(yàn)的方法對改進(jìn)后的壓緊工藝進(jìn)行數(shù)據(jù)采集和統(tǒng)計(jì),從而確定改進(jìn)后工藝的有效性和實(shí)用性。本文的研究已經(jīng)應(yīng)用到變壓器的制造生產(chǎn)實(shí)踐,驗(yàn)證其效果是顯著的。
[Abstract]:Transformer is an important part of power system. The stability and reliability of transformer is directly related to the stability and reliability of power system. The degree of compression of the transformer body determines the ability of the transformer to withstand the short-circuit force under the short-circuit condition. It is not only helpful to improve the efficiency of transformer production, but also plays an important role in the safety and economy of the whole power network. In this paper, the axial force of the transformer under the condition of short circuit is deeply analyzed and studied. At the same time, the selection principle and calculation method of axial pretightening force are discussed. The pressing process and the problems existing in the compression of the body are analyzed and improved. In the case of the compression structure of the body, the original compression structure of the nail type is changed into the form of the support plate and the insulation pad. At the same time, it also improves the material, tooling and accessories related to compaction, and aims at the problem of insufficient compaction between the upper iron yoke end face and the press plate in the pressing process of the device body. This paper puts forward the original soft hose auxiliary compaction process mode, compaction rechecking mode, hydraulic compaction system and pneumatic compaction system, etc. The improved compression process is collected and counted by contrast test method. In order to determine the effectiveness and practicability of the improved process, the research in this paper has been applied to the manufacturing practice of transformer, and the effect is obvious.
【學(xué)位授予單位】：浙江工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM405
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本文編號：1620420