本文選題：電弧圖像　切入點(diǎn)：滅弧氣體　出處：《高壓電器》2016年12期 　論文類型：期刊論文

【摘要】：電弧圖像能夠直觀的反映出電弧的形貌及運(yùn)動(dòng)特性。為了獲得不同氣體介質(zhì)中的電弧狀態(tài)及其影響因素,文中利用可拆可視化小型樣機(jī),對(duì)直流小電流下不同氣體電弧的形貌進(jìn)行了拍攝和對(duì)比,并分析了電弧電壓的變化規(guī)律。研究表明,隨著電弧電流的減小,電弧半徑減小,電弧亮度降低;隨著腔體充氣壓力的增大,電弧中心的亮度升高,電弧電壓增大;觸頭開(kāi)距的增大,使得電弧長(zhǎng)度增加,電弧電壓升高;CO_2和N_2電弧燃燒較不穩(wěn)定,N_2電弧射流引起的熱氣體徑向噴射力更強(qiáng),CO_2電弧受開(kāi)距的影響更為顯著。電弧圖像的輔助分析方法,為實(shí)驗(yàn)現(xiàn)象的理解提供了參考,同時(shí)也為環(huán)保型氣體電弧特性的研究提供了支撐。
[Abstract]:The arc image can directly reflect the shape and motion characteristics of the arc. In order to obtain the arc state and its influencing factors in different gas media, a small detachable visual prototype is used in this paper. The morphology of different gas arc under low DC current is photographed and compared, and the variation of arc voltage is analyzed. The results show that with the decrease of arc current, the arc radius decreases and the arc brightness decreases. With the increase of gas pressure in the chamber, the brightness of the arc center increases, the arc voltage increases, and the distance between the contacts increases, which results in the increase of the arc length. The arc combustion of CO _ 2 and N _ S _ 2 arc is more unstable than that of unsteady N _ S _ 2 arc jet. The radial jet force of hot gas body caused by the arc jet is stronger and the influence of the opening distance on the arc is more obvious. The auxiliary analysis method of the arc image provides a reference for the understanding of the experimental phenomenon. At the same time, it also provides support for the study of the characteristics of environmental protection gas arc.
【作者單位】： 西安西電電氣研究院有限責(zé)任公司;西安交通大學(xué)電氣工程學(xué)院;
【分類號(hào)】：TM501.2

【相似文獻(xiàn)】

相關(guān)期刊論文 前1條

1 李明利,劉占民;大電流鎢極氬—氦混合氣體電弧行為分析[J];焊接學(xué)報(bào);2005年08期

，

本文編號(hào)：1651824