氦(hai)(hai)氣(qi)檢(jian)(jian)(jian)漏(lou)(lou)儀可(ke)對(dui)使用過程(cheng)(cheng)中產生的(de)濃度(du)不合格氦(hai)(hai)氣(qi)進(jin)行提純，極(ji)大(da)降低氦(hai)(hai)氣(qi)損耗(hao)（功能(neng)可(ke)選(xuan)）；檢(jian)(jian)(jian)漏(lou)(lou)儀啟動(dong)時(shi)間(jian)：≤5min。響(xiang)應時(shi)間(jian)：≤1s檢(jian)(jian)(jian)漏(lou)(lou)口的(de)。高壓(ya)力(li)：1500Pa。電源(yuan)要求：220v，50Hz，單(dan)相，10A。工作(zuo)環境(jing)：5-35℃檢(jian)(jian)(jian)漏(lou)(lou)儀自(zi)動(dong)化(hua)程(cheng)(cheng)度(du)高：自(zi)動(dong)校(xiao)準(zhun)氦(hai)(hai)峰，自(zi)動(dong)調(diao)節(jie)零點，量程(cheng)(cheng)自(zi)動(dong)轉換，自(zi)動(dong)數據處(chu)理，汽車加(jia)油管檢(jian)(jian)(jian)漏(lou)(lou)，可(ke)外接打印機。氦(hai)(hai)質譜檢(jian)(jian)(jian)漏(lou)(lou)儀由微機控制(zhi)，菜單(dan)的(de)選(xuan)擇功能(neng)，一個(ge)按鈕即可(ke)完(wan)成(cheng)一次的(de)全檢(jian)(jian)(jian)漏(lou)(lou)過程(cheng)(cheng)。

本次試驗被檢測部位(wei)共40余處(chu)(chu)，并對(dui)汽輪機(ji)及小汽輪機(ji)軸封(feng)部位(wei)進(jin)行了變工祝復(fu)測。終(zhong)結(jie)果發現特(te)大漏(lou)點(dian)(dian)1處(chu)(chu)，大泄(xie)漏(lou)點(dian)(dian)1處(chu)(chu)，中(zhong)漏(lou)點(dian)(dian)1處(chu)(chu)，小泄(xie)漏(lou)點(dian)(dian)10處(chu)(chu)，其他點(dian)(dian)為(wei)微漏(lou)或不漏(lou)。測試發現特(te)大漏(lou)點(dian)(dian)部位(wei)為(wei)低壓(ya)缸(gang)擴側防爆膜，大泄(xie)漏(lou)點(dian)(dian)部位(wei)為(wei)低壓(ya)缸(gang)固側防爆膜，中(zhong)泄(xie)漏(lou)點(dian)(dian)部位(wei)為(wei)低壓(ya)缸(gang)擴側法(fa)蘭(lan)。為(wei)了在不影(ying)響機(ji)組(zu)正常運行的(de)情況下，快速有效的(de)改善機(ji)組(zu)真空(kong)狀況，我們對(dui)主要漏(lou)點(dian)(dian)進(jin)行了涂(tu)抹密封(feng)膠(jiao)臨時堵漏(lou)處(chu)(chu)理，經(jing)過多次處(chu)(chu)理并檢測，終(zhong)處(chu)(chu)理后滿(man)足使(shi)用(yong)要求。

氦(hai)(hai)質譜(pu)(pu)檢漏儀是如何(he)工(gong)作的(de)(de)?氦(hai)(hai)質譜(pu)(pu)檢漏儀由離(li)(li)(li)子源、分析(xi)器(qi)、、真空系統、電(dian)(dian)(dian)子線路及(ji)其他(ta)電(dian)(dian)(dian)氣部分組成(cheng)。為(wei)了方(fang)便解釋氦(hai)(hai)質譜(pu)(pu)檢漏儀是如何(he)工(gong)作的(de)(de)，我們以磁偏(pian)轉型(xing)的(de)(de)氦(hai)(hai)質譜(pu)(pu)檢漏儀為(wei)例進(jin)行說明(ming)。在質譜(pu)(pu)室的(de)(de)離(li)(li)(li)子源N內，氣體被電(dian)(dian)(dian)離(li)(li)(li)成(cheng)離(li)(li)(li)子。在電(dian)(dian)(dian)場作用下離(li)(li)(li)子聚焦成(cheng)東，并以-定(ding)的(de)(de)速(su)度(du)經由縫(feng)隙(xi)S1進(jin)入磁分析(xi)器(qi)，在均勻(yun)磁場的(de)(de)作用下，具有-定(ding)速(su)度(du)的(de)(de)離(li)(li)(li)子束(shu)(shu)，將(jiang)按圓形軌(gui)跡運動。調節加速(su)電(dian)(dian)(dian)壓U使氦(hai)(hai)離(li)(li)(li)子束(shu)(shu)M z恰(qia)能通過縫(feng)隙(xi)S2到達收集極K而形成(cheng)離(li)(li)(li)子流。利用弱電(dian)(dian)(dian)流量測設備，使之在輸出儀表與音(yin)響裝置上(shang)反映出來。而其他(ta)不(bu)同(tong)于(yu)M2的(de)(de)離(li)(li)(li)子束(shu)(shu)則以不(bu)同(tong)的(de)(de)偏(pian)轉半徑(jing)而被分開。