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制冷壓縮機

溫度沖擊試驗箱制冷壓縮機反轉(zhuǎn)的危害

發(fā)布日期:2022-10-09 點擊率:95

  溫度沖擊試驗箱制冷壓縮機停機后嚴(yán)禁發(fā)生反轉(zhuǎn)。當(dāng)壓縮機轉(zhuǎn)子靜止后,此時管路當(dāng)中尚殘存很大容量的工藝氣體,并具有一定的壓力,而此時壓縮機轉(zhuǎn)子停止轉(zhuǎn)動,溫度沖擊試驗箱壓縮機內(nèi)壓力低于管路壓力。
  這時如果壓縮機出口管路上沒有安裝逆止閥門或者逆止閥門距壓縮機出口很遠的話,管路中的氣體便會倒流,使壓縮機發(fā)生反轉(zhuǎn),同時也帶動汽輪機或電動機及齒輪變速器等轉(zhuǎn)子反轉(zhuǎn)。
  壓縮機組轉(zhuǎn)子發(fā)生反轉(zhuǎn)會破壞軸承的正常潤滑,使止推軸承受力狀況發(fā)生改變,甚至?xí)斐芍雇戚S承的損失,干氣密封也會因為溫度沖擊試驗箱壓縮機的倒轉(zhuǎn)而損壞。

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