真空式羅茨鼓風機也稱羅茨真空泵，是利用羅茨風機的負壓來抽吸氣體和輸送物品的目的，春鼎THV-150羅茨真空泵等系列產品經過嚴格的單機測試和根據客戶提供的參數進行嚴格的出廠測試，確保每一臺真空式鼓風機的品質。

春鼎THV-200羅茨真空泵工作原理：

工作時其(qi)吸(xi)氣口與被抽(chou)真空(kong)(kong)容(rong)器或真空(kong)(kong)系統主抽(chou)泵(beng)(beng)相接(jie)，真空(kong)(kong)泵(beng)(beng)的轉(zhuan)(zhuan)(zhuan)子與轉(zhuan)(zhuan)(zhuan)子之間、轉(zhuan)(zhuan)(zhuan)子與泵(beng)(beng)殼之間互不(bu)接(jie)觸，間隙(xi)一般為(wei)0.1~0.8毫米，不(bu)需要(yao)用(yong)(yong)油潤滑(hua)，轉(zhuan)(zhuan)(zhuan)子型(xing)(xing)線(xian)有圓弧線(xian)、漸開(kai)線(xian)和擺線(xian)等。漸開(kai)線(xian)轉(zhuan)(zhuan)(zhuan)子泵(beng)(beng)的容(rong)積利用(yong)(yong)率高，加工精度易于保證，故轉(zhuan)(zhuan)(zhuan)子型(xing)(xing)線(xian)多用(yong)(yong)漸開(kai)線(xian)型(xing)(xing)。羅茨真空(kong)(kong)泵(beng)(beng)的轉(zhuan)(zhuan)(zhuan)速可高達3450~4100轉(zhuan)(zhuan)(zhuan)/分;抽(chou)氣速率為(wei)30~ 10000升/秒(1升=10-3米3) ;極限真空(kong)(kong):單級為(wei)6.5X10-2帕，雙級為(wei)1X10-3帕。