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低溫恒溫槽中的壓縮機注釋

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壓縮機作為低溫恒溫槽中的重要組成部分之一,其工作原理主要是根據物理學中壓力體積與溫度的關系,當氣體的質量一定時,壓力與體積的乘積是一個常數。因此,要實現單位質量的氣體的壓力升高一倍,就必須使其體積縮小一半。所有的低溫恒溫槽壓縮機都是根據這個原理進行氣體壓縮的。
一般來說,實現氣體壓縮的物理方式有如下幾種:
相對靜止的氣體壓縮容積改變和流動氣體的通經改變。
1相對靜止的氣體容積改變。如活塞式壓縮機,滾動轉子壓縮機,螺桿式壓縮機等。
2流動氣體的通經改變,如渦旋式壓縮機,噴射式壓縮機。如全封閉壓縮機組制冷,制冷系統具有過熱,過電流多重保護裝置
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