工業(ye)冷水(shui)(shui)機在應用(yong)的過(guo)程中有很(hen)多標準與規定，那么在工業(ye)冷水(shui)(shui)機運行(xing)的過(guo)程中有哪些重要技術指標呢？

  工業冷(leng)(leng)水(shui)機(ji)機(ji)油(you)具有潤滑、冷(leng)(leng)卻、沖洗、密封等(deng)功能(neng)，是(shi)(shi)制冷(leng)(leng)壓(ya)縮機(ji)不可(ke)或缺的(de)(de)重要(yao)組分。壓(ya)縮機(ji)內(nei)部(bu)的(de)(de)冷(leng)(leng)凍機(ji)油(you)會不可(ke)避免地(di)隨著壓(ya)縮機(ji)排氣混入制冷(leng)(leng)系統。過量(liang)和(he)油(you)循環(huan)(huan)率會對(dui)制冷(leng)(leng)壓(ya)縮機(ji)的(de)(de)運行可(ke)靠(kao)性造成(cheng)嚴重危(wei)險，并且對(dui)制冷(leng)(leng)循環(huan)(huan)也帶來負面作用，因此，制冷(leng)(leng)循環(huan)(huan)的(de)(de)油(you)循環(huan)(huan)率不論是(shi)(shi)制冷(leng)(leng)壓(ya)縮機(ji)還是(shi)(shi)工業冷(leng)(leng)水(shui)機(ji)制冷(leng)(leng)系統，都是(shi)(shi)一個重要(yao)技術指標，需要(yao)嚴格控制。

  稱(cheng)(cheng)重法(fa)，我(wo)國(guo)現行(xing)國(guo)家標(biao)準GB/T5773、多數國(guo)外標(biao)準規(gui)(gui)定的制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)壓(ya)(ya)縮機用冷(leng)(leng)(leng)(leng)凍機油(you)循環率的測(ce)(ce)定采(cai)用的都是稱(cheng)(cheng)重法(fa)，即使(shi)批量(liang)方(fang)式對冷(leng)(leng)(leng)(leng)凝制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑中的油(you)量(liang)進(jin)行(xing)抽取(qu)稱(cheng)(cheng)重測(ce)(ce)定：用采(cai)樣容器從制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)系統(tong)中抽出(chu)(chu)一部分制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑和油(you)的混合物(wu)，之后(hou)緩慢蒸發出(chu)(chu)采(cai)樣容器里面的制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑，對采(cai)樣容器重量(liang)的變(bian)化進(jin)行(xing)稱(cheng)(cheng)重測(ce)(ce)量(liang)，因而(er)得(de)出(chu)(chu)稱(cheng)(cheng)重前后(hou)采(cai)樣容器中混合物(wu)的重量(liang)變(bian)化數據，計(ji)算得(de)出(chu)(chu)低溫工業冷(leng)(leng)(leng)(leng)水(shui)機制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)系統(tong)的含油(you)量(liang)。進(jin)行(xing)稱(cheng)(cheng)重測(ce)(ce)量(liang)時，要求測(ce)(ce)量(liang)工況按有關制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑壓(ya)(ya)縮機產品標(biao)準或規(gui)(gui)定進(jin)行(xing)運(yun)轉至(zhi)穩定狀(zhuang)態。

  油(you)(you)(you)(you)(you)(you)分離(li)法，使用輔助油(you)(you)(you)(you)(you)(you)分離(li)器(qi)進(jin)行油(you)(you)(you)(you)(you)(you)循(xun)環率(lv)(lv)的(de)測量(liang)(liang)方(fang)法原理(li)如下：在制(zhi)(zhi)冷劑(ji)壓(ya)縮(suo)機排氣(qi)管側裝(zhuang)一(yi)個油(you)(you)(you)(you)(you)(you)分離(li)器(qi)，壓(ya)縮(suo)機排氣(qi)經過油(you)(you)(you)(you)(you)(you)分離(li)器(qi)時(shi)，排氣(qi)混合物中(zhong)的(de)潤滑油(you)(you)(you)(you)(you)(you)被(bei)分離(li)出(chu)來，并收集到(dao)(dao)帶油(you)(you)(you)(you)(you)(you)觀(guan)察鏡(jing)的(de)器(qi)皿中(zhong)，根據容器(qi)中(zhong)油(you)(you)(you)(you)(you)(you)量(liang)(liang)。的(de)變(bian)化以及制(zhi)(zhi)冷劑(ji)循(xun)環量(liang)(liang)，可以計算出(chu)油(you)(you)(you)(you)(you)(you)循(xun)環率(lv)(lv)的(de)大小(xiao)。這種方(fang)法的(de)優點是(shi)能監測到(dao)(dao)不(bu)同時(shi)間油(you)(you)(you)(you)(you)(you)循(xun)環率(lv)(lv)的(de)變(bian)化。但(dan)是(shi)，需要注意一(yi)點：由于潤滑油(you)(you)(you)(you)(you)(you)被(bei)收集到(dao)(dao)觀(guan)察器(qi)中(zhong)，壓(ya)縮(suo)機里面(mian)的(de)油(you)(you)(you)(you)(you)(you)面(mian)降低，壓(ya)縮(suo)機的(de)出(chu)油(you)(you)(you)(you)(you)(you)量(liang)(liang)有下降趨(qu)勢。