采用試(shi)驗件(jian)(jian)對機(ji)翼整(zheng)體油箱漏(lou)(lou)率進行(xing)摸索(suo)，整(zheng)體油箱試(shi)驗件(jian)(jian)檢(jian)漏(lou)(lou)總體上分(fen)為兩個部分(fen): -是粗(cu)漏(lou)(lou)漏(lou)(lou)點檢(jian)測(ce)(ce)與工(gong)藝修(xiu)補(bu);二是氦質譜(pu)細漏(lou)(lou)檢(jian)測(ce)(ce)，汽(qi)車行(xing)業檢(jian)漏(lou)(lou)廠商(shang)，粗(cu)漏(lou)(lou)檢(jian)測(ce)(ce)過(guo)程涉及的(de)主要設備(bei)(bei)有壓(ya)(ya)縮(suo)空(kong)(kong)氣(qi)(qi)氣(qi)(qi)源、自動配氣(qi)(qi)平臺、控制閥等。試(shi)驗時(shi)，首先接通壓(ya)(ya)縮(suo)空(kong)(kong)氣(qi)(qi)氣(qi)(qi)源，啟(qi)動整(zheng)體油箱快速檢(jian)漏(lou)(lou)設備(bei)(bei)，設定(ding)充氣(qi)(qi)氣(qi)(qi)壓(ya)(ya)。充氣(qi)(qi)過(guo)程結束后，穩壓(ya)(ya)15min， 觀測(ce)(ce)檢(jian)漏(lou)(lou)設備(bei)(bei)上的(de)壓(ya)(ya)降(jiang)(jiang)曲線，確(que)定(ding)是否(fou)存(cun)在粗(cu)漏(lou)(lou)。若壓(ya)(ya)降(jiang)(jiang)明(ming)顯(xian)，說明(ming)有粗(cu)漏(lou)(lou)漏(lou)(lou)點存(cun)在。經肥皂(zao)泡方法確(que)定(ding)粗(cu)漏(lou)(lou)漏(lou)(lou)點位置后，利用涂密封膠的(de)方法對粗(cu)漏(lou)(lou)漏(lou)(lou)點進行(xing)工(gong)藝修(xiu)補(bu)，重(zhong)復檢(jian)測(ce)(ce)修(xiu)補(bu)后，至(zhi)油箱試(shi)驗件(jian)(jian)在規(gui)定(ding)時(shi)間內的(de)壓(ya)(ya)降(jiang)(jiang)符合技術要求后，可以進行(xing)氦質譜(pu)細漏(lou)(lou)檢(jian)測(ce)(ce)。

氦質(zhi)譜(pu)檢(jian)漏(lou)(lou)法由于(yu)其高(gao)的(de)靈敏度、方法的(de)多樣性(xing)、對各種(zhong)試件(jian)的(de)適應(ying)性(xing)以及無破壞性(xing)，使其廣(guang)泛(fan)應(ying)用(yong)。氦質(zhi)譜(pu)檢(jian)漏(lou)(lou)方法 以其高(gao)靈敏度和準確性(xing)而通常應(ying)用(yong)于(yu)整體防漏(lou)(lou)等(deng)級較高(gao)的(de)壓力容器上。 氦檢(jian)方法基(ji)本上可分為(wei)用(yong)氦氣內(nei)部(bu)加(jia)壓法和 設(she)備內(nei)部(bu)抽真空(kong)外部(bu)施氦這(zhe)兩(liang)種(zhong)。對檢(jian)漏(lou)(lou)方法的(de)要求(qiu)(qiu)：能(neng)定位(wei)(wei)、定量，即不(bu)經能(neng)夠找出漏(lou)(lou)孔的(de)位(wei)(wei)置，還能(neng)知道漏(lou)(lou)率的(de)大小(xiao)，以便確定是(shi)否合乎質(zhi)量要求(qiu)(qiu)；能(neng)無損(sun)檢(jian)漏(lou)(lou)，不(bu)使被檢(jian)設(she)備受(shou)到損(sun)傷(shang)和污染。

因此(ci)，電力(li)行業對高壓(ya)(ya)電氣(qi)(qi)設備及其(qi)配套(tao)產品在(zai)(zai)密封性(xing)能(neng)上要求極高，氦(hai)(hai)(hai)質(zhi)(zhi)(zhi)譜(pu)(pu)正壓(ya)(ya)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)法(fa)。給被(bei)(bei)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)件(jian)(jian)內腔充入(ru)(ru)與(yu)設備工作壓(ya)(ya)力(li)相同的(de)(de)(de)氦(hai)(hai)(hai)氣(qi)(qi)，置入(ru)(ru)封閉容器中，將封閉容器與(yu)氫(qing)質(zhi)(zhi)(zhi)譜(pu)(pu)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)儀(yi)連(lian)通(tong)(tong)，待氦(hai)(hai)(hai)質(zhi)(zhi)(zhi)譜(pu)(pu)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)儀(yi)指(zhi)示(shi)可檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)時(shi)，被(bei)(bei)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)件(jian)(jian)內的(de)(de)(de)氦(hai)(hai)(hai)分子在(zai)(zai)壓(ya)(ya)差(cha)(cha)的(de)(de)(de)作用下(xia)通(tong)(tong)過(guo)(guo)漏(lou)孔進入(ru)(ru)設備內的(de)(de)(de)質(zhi)(zhi)(zhi)譜(pu)(pu)室，氦(hai)(hai)(hai)質(zhi)(zhi)(zhi)譜(pu)(pu)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)儀(yi)經過(guo)(guo)分析(xi)后(hou)(hou)自(zi)動指(zhi)示(shi)出(chu)被(bei)(bei)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)件(jian)(jian)的(de)(de)(de)漏(lou)率。氦(hai)(hai)(hai)質(zhi)(zhi)(zhi)譜(pu)(pu)負壓(ya)(ya)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)法(fa)，將被(bei)(bei)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)件(jian)(jian)裝(zhuang)在(zai)(zai)氦(hai)(hai)(hai)質(zhi)(zhi)(zhi)譜(pu)(pu)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)儀(yi)上，對被(bei)(bei)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)件(jian)(jian)抽真空(kong)，當(dang)達到檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)儀(yi)的(de)(de)(de)開檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)壓(ya)(ya)力(li)后(hou)(hou)，對被(bei)(bei)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)件(jian)(jian)漏(lou)點處噴氦(hai)(hai)(hai)氣(qi)(qi)，氦(hai)(hai)(hai)分子在(zai)(zai)壓(ya)(ya)差(cha)(cha)的(de)(de)(de)作用下(xia)通(tong)(tong)過(guo)(guo)漏(lou)孔進入(ru)(ru)設備內的(de)(de)(de)質(zhi)(zhi)(zhi)譜(pu)(pu)室，氦(hai)(hai)(hai)質(zhi)(zhi)(zhi)譜(pu)(pu)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)漏(lou)儀(yi)經過(guo)(guo)分析(xi)后(hou)(hou)自(zi)動指(zhi)示(shi)出(chu)被(bei)(bei)檢(jian)(jian)(jian)(jian)(jian)(jian)(jian)(jian)件(jian)(jian)的(de)(de)(de)漏(lou)率