本文選題：二電極開(kāi)關(guān)　切入點(diǎn)：銅鎢合金　出處：《中國(guó)電機(jī)工程學(xué)報(bào)》2017年08期

【摘要】：研究密閉腔內(nèi)結(jié)構(gòu)緊湊、長(zhǎng)壽命、大通流能力且能重復(fù)頻率穩(wěn)定工作的氣體開(kāi)關(guān),對(duì)于油氣開(kāi)發(fā)中應(yīng)用的脈沖功率裝置意義重大。從工程實(shí)際出發(fā),開(kāi)展了對(duì)銅鎢電極燒蝕形貌與相關(guān)特性的系統(tǒng)研究。搭建了開(kāi)關(guān)實(shí)驗(yàn)平臺(tái),模擬實(shí)際工程中開(kāi)關(guān)的變化過(guò)程。通過(guò)接觸式非球面測(cè)量?jī)x、共聚焦顯微鏡等設(shè)備完成對(duì)不同壽命階段電極表面形貌的觀測(cè),得到表面輪廓線、平面顯微圖像,以及3維重建模型等數(shù)據(jù),定量表述電極表面燒蝕形貌。結(jié)果表明,隨著累計(jì)轉(zhuǎn)移電荷量的增加,陽(yáng)極、陰極的表面粗糙度均明顯增加,且邊緣區(qū)較中心區(qū)具有更高的粗糙度;對(duì)于同一區(qū)域,陰極都具有更高的粗糙度;20000次自擊穿放電后,表面粗糙度增加至7.752?m(陰極,邊緣)與5.573?m(陽(yáng)極,邊緣)�？傮w而言,陰極較陽(yáng)極燒蝕更為嚴(yán)重,多次放電后表面形貌復(fù)雜,難以用簡(jiǎn)單模型描述。該研究是對(duì)傳統(tǒng)氣體開(kāi)關(guān)技術(shù)的重要補(bǔ)充,具有相當(dāng)?shù)目蒲袃r(jià)值,同時(shí)也對(duì)油氣開(kāi)發(fā)等工業(yè)應(yīng)用實(shí)際具有重要借鑒意義。
[Abstract]:It is of great significance to study the gas switch with compact structure, long life, large flow capacity and stable working frequency in the closed cavity for the application of pulse power device in oil and gas development. The ablation morphology and related characteristics of copper-tungsten electrode were studied systematically. A switch experimental platform was set up to simulate the changing process of switch in practical engineering. Confocal microscope was used to observe the surface morphology of electrode at different life stages. The surface profile, plane microscopic image and 3D reconstruction model were obtained, and the ablation morphology of electrode surface was quantitatively described. With the increase of accumulative transfer charge, the surface roughness of anode and cathode increases obviously, and the edge area has higher roughness than the center area, and for the same area, the cathode has a higher roughness after 20000 self-breakdown discharges. Surface roughness increased to 7.752? M (cathode, edge) with 5.573? M (anode, edge). Generally speaking, the cathode is more serious than anode ablation, the surface morphology after multiple discharge is complex, it is difficult to describe by simple model. This research is an important supplement to traditional gas switch technology and has considerable scientific research value. At the same time, it has important reference significance to the industrial application such as oil and gas development.
【作者單位】： 電力設(shè)備電氣絕緣國(guó)家重點(diǎn)實(shí)驗(yàn)室(西安交通大學(xué));
【基金】：國(guó)家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)(2013AA064502)~~
【分類號(hào)】：TM564

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 韓小蓮，邱愛(ài)慈，蓋同陽(yáng);高電壓脈沖氣體開(kāi)關(guān)穩(wěn)定性研究[J];強(qiáng)激光與粒子束;1995年01期

2 孫鳳舉,邱毓昌,邱愛(ài)慈,張嘉生,曾江濤,陳慶國(guó),丁衛(wèi)東;多間隙氣體開(kāi)關(guān)放電通道圖像的實(shí)驗(yàn)研究[J];高電壓技術(shù);2001年04期

3 孫鳳舉,邱愛(ài)慈,邱毓昌,曾江濤,尹佳輝;多級(jí)多通道低電感火花氣體開(kāi)關(guān)[J];高壓電器;2001年05期

4 叢培天,曾正中,蒯斌,邱愛(ài)慈,梁天學(xué),王亮平;同軸場(chǎng)畸變氣體開(kāi)關(guān)運(yùn)行特性[J];強(qiáng)激光與粒子束;2005年05期

5 賴貴友;郭良福;力一崢;陳德懷;陳清海;周丕璋;;大電流兩電極氣體開(kāi)關(guān)研究[J];強(qiáng)激光與粒子束;2006年06期

6 黃建軍;張永民;來(lái)定國(guó);任書(shū)慶;程亮;謝霖q，

本文編號(hào)：1662421