真(zhen)(zhen)空(kong)(kong)(kong)(kong)冷(leng)凍干(gan)燥(zao)機(ji)的真(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)(xi)(xi)統(tong)是(shi)(shi)凍干(gan)機(ji)的重要組成部分(fen)之一，一般包括旋(xuan)片式真(zhen)(zhen)空(kong)(kong)(kong)(kong)泵或干(gan)泵和羅茨(ci)泵加速抽真(zhen)(zhen)空(kong)(kong)(kong)(kong)。真(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)(xi)(xi)統(tong)通過不銹鋼管路(lu)與冷(leng)凝(ning)器連(lian)接，在靠近冷(leng)凝(ning)器的位置處安(an)裝有氣動蝶閥，將(jiang)冷(leng)凝(ning)器與真(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)(xi)(xi)統(tong)隔開。真(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)(xi)(xi)統(tong)的作用是(shi)(shi)建立(li)真(zhen)(zhen)空(kong)(kong)(kong)(kong)，給冰的升(sheng)(sheng)華制造環境和條(tiao)件(jian)。真(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)(xi)(xi)統(tong)的真(zhen)(zhen)空(kong)(kong)(kong)(kong)度的高(gao)低直接影(ying)響制品的升(sheng)(sheng)華速率(lv)，真(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)(xi)(xi)統(tong)要求(qiu)其自身具有較低的泄漏率(lv)。真(zhen)(zhen)空(kong)(kong)(kong)(kong)控制的精度直接影(ying)響到(dao)制藥工藝的運行。

那么，凍干機的(de)真空系(xi)統在日常該如何維(wei)護和保養呢？下面我們一起來(lai)看(kan)看(kan)吧！

一、真空泵

運行中檢(jian)查冷(leng)凍(dong)干(gan)燥設備(bei)真(zhen)(zhen)空(kong)(kong)泵運行聲音(yin)是(shi)否(fou)正(zheng)(zheng)常(chang)(chang)，如果異(yi)常(chang)(chang)請(qing)先檢(jian)查供電的三相電是(shi)否(fou)平衡(heng)；真(zhen)(zhen)空(kong)(kong)泵是(shi)否(fou)有(you)異(yi)常(chang)(chang)振(zhen)動，真(zhen)(zhen)空(kong)(kong)泵與泵頭上的各(ge)個連接部分是(shi)否(fou)存(cun)在松動現(xian)象，如果有(you)則采用(yong)相應的固定(ding)措施；帶冷(leng)卻水的泵，需(xu)要(yao)保持(chi)冷(leng)卻水有(you)足(zu)(zu)夠的流量(liang)和(he)(he)壓差(cha)，運行過(guo)程(cheng)中可以用(yong)手(shou)觸摸一下(xia)泵體的溫度；帶氮氣吹掃的泵，需(xu)要(yao)保持(chi)氮氣有(you)足(zu)(zu)夠的流量(liang)和(he)(he)壓力；需(xu)檢(jian)查油(you)(you)位(wei)是(shi)否(fou)保持(chi)在正(zheng)(zheng)常(chang)(chang)油(you)(you)位(wei)，低(di)于正(zheng)(zheng)常(chang)(chang)油(you)(you)位(wei)要(yao)及(ji)時(shi)補加規(gui)定(ding)的真(zhen)(zhen)空(kong)(kong)泵油(you)(you)；如果真(zhen)(zhen)空(kong)(kong)泵油(you)(you)發生乳(ru)化，需(xu)要(yao)打開氣鎮(zhen)閥運行2小(xiao)時(shi)；真(zhen)(zhen)如果空(kong)(kong)泵油(you)(you)變色，建(jian)議及(ji)時(shi)更(geng)(geng)換(huan)真(zhen)(zhen)空(kong)(kong)泵油(you)(you)，并清洗過(guo)濾(lv)網，并更(geng)(geng)換(huan)過(guo)濾(lv)器；觀察(cha)真(zhen)(zhen)空(kong)(kong)泵是(shi)否(fou)漏油(you)(you)，如漏油(you)(you)及(ji)時(shi)停機(ji)維修(xiu)。

二、真(zhen)空(kong)冷凍干(gan)燥機長期停用檢查

如果泵在一段時間內不使用，應關閉電源和冷卻水供應；如果泵在凍干工藝結束后直接關閉，水汽可能殘存在泵體內。如果泵長期處于關閉狀態，這些液體可能會腐蝕泵的機械結構，可能會造成泵無法再啟動。建議泵在調試結束后空轉半小時左右。
三、真(zhen)空(kong)泵泵頭(tou)閥檢查

泵(beng)頭(tou)閥(fa)在(zai)真(zhen)空(kong)(kong)泵(beng)開啟時同時得(de)電(dian)，真(zhen)空(kong)(kong)泵(beng)停(ting)止時斷電(dian)；真(zhen)空(kong)(kong)冷凍干燥機泵(beng)頭(tou)閥(fa)有無得(de)電(dian)可(ke)從閥(fa)尾端(duan)的進氣口處判斷。把消聲(sheng)器(qi)拆下，用手堵住進氣口，有氣往里吸證明閥(fa)沒得(de)電(dian)，反(fan)得(de)電(dian)；關(guan)閉真(zhen)空(kong)(kong)泵(beng)切斷泵(beng)頭(tou)閥(fa)電(dian)源，通過(guo)真(zhen)空(kong)(kong)管上(shang)的硅管真(zhen)空(kong)(kong)度變化來判斷泵(beng)頭(tou)閥(fa)是否關(guan)閉的嚴。

四、真空泵換油

擰(ning)開排油(you)(you)(you)(you)閥，將泵(beng)體油(you)(you)(you)(you)箱抬高(gao)讓真空(kong)(kong)(kong)泵(beng)內舊油(you)(you)(you)(you)自動地(di)流到(dao)旋油(you)(you)(you)(you)螺帽(mao)位置(zhi)讓油(you)(you)(you)(you)流出(chu)。舊油(you)(you)(you)(you)放盡后，從真空(kong)(kong)(kong)泵(beng)加(jia)(jia)油(you)(you)(you)(you)處注入少量的(de)干凈(jing)(jing)真空(kong)(kong)(kong)泵(beng)油(you)(you)(you)(you)(100~500mL)，沖洗(xi)(xi)真空(kong)(kong)(kong)泵(beng)腔內部。接著開動真空(kong)(kong)(kong)泵(beng)運轉1min左右，再(zai)關真空(kong)(kong)(kong)泵(beng)，將注入的(de)新油(you)(you)(you)(you)放出(chu)，若放出(chu)的(de)油(you)(you)(you)(you)仍不(bu)干掙，應繼續注入新油(you)(you)(you)(you)沖洗(xi)(xi)，直到(dao)干凈(jing)(jing)為(wei)止(zhi)。然(ran)后，擰(ning)緊排油(you)(you)(you)(you)閥，擰(ning)下加(jia)(jia)油(you)(you)(you)(you)孔上的(de)加(jia)(jia)油(you)(you)(you)(you)帽(mao)，向真空(kong)(kong)(kong)泵(beng)內加(jia)(jia)入新的(de)真空(kong)(kong)(kong)泵(beng)油(you)(you)(you)(you)，使油(you)(you)(you)(you)面達到(dao)油(you)(you)(you)(you)標線，再(zai)旋上加(jia)(jia)油(you)(you)(you)(you)帽(mao)；

將容器放在放油口下方，旋下放油口螺釘。關閉抽氣(qi)口，同時開啟真空泵(beng)，打開氣(qi)鎮閥和遮(zhe)蓋真空泵(beng)的部分(fen)排氣(qi)口，以(yi)產生一個足夠(gou)的內部壓強，使(shi)臟油迅(xun)速地放出，然后按上述第(di)1步的步驟沖洗真空泵(beng)腔內部，換新油。

五、真空泵冷卻水管(guan)和夾(jia)套清洗

在凍干(gan)機出水(shui)口處連接一(yi)個(ge)合適的水(shui)管(guan)(guan)，在進水(shui)口處連接一(yi)個(ge)合適的回水(shui)管(guan)(guan)；打開進水(shui)管(guan)(guan)提供(gong)清洗水(shui)，反向沖洗冷卻水(shui)套(tao)，將沉積物盡量沖洗干(gan)凈；讓水(shui)流動(dong)幾分(fen)鐘，然后關掉(diao)進水(shui)，再(zai)斷開回水(shui)管(guan)(guan)。

成(cheng)都壹科醫療(liao)為(wei)您提供北京四(si)環福(fu)瑞，凍干(gan)機及(ji)其(qi)(qi)他(ta)儀器(qi)在四(si)川、成(cheng)都的(de)產品、耗材的(de)市場營銷、推(tui)廣、產品銷售、招投標(biao)、設備安裝、耗材更換、維(wei)修等(deng)工作。成(cheng)都壹科醫療(liao)是您了解和購買(mai)北京四(si)環福(fu)瑞，凍干(gan)機及(ji)其(qi)(qi)他(ta)儀器(qi)的(de)好幫手。