它除了具有一般羅茨真空泵機(jī)組的一些特點(diǎn)外，由于采用水環(huán)式真空泵作前級(jí)泵，因此，它特別適用于抽除含較多蒸氣及有一定腐蝕性氣體的工業(yè)流程中。例如：For example:制藥業(yè)的真空蒸餾、真空蒸發(fā)、脫水結(jié)晶；輕紡工業(yè)的滌綸切片干燥；食品工業(yè)的冷凍、干燥等工藝均可采用。

Besides having some features of general Roots vacuum pump, this unit treats two-stage water-ring vacuum pump as prepump, so it is specially suitable for industrial-process with a large quantity of vapor and some corrosive gases.The process such as vacuum distillation, vacuum evaporation, dehydration and crystallization in pharmacy, polyester chips drying in textile industry, freezing and drying in food industry could be adopted.

該機(jī)組是以普通羅茨真空泵為主泵，以雙級(jí)水環(huán)式真空泵為前級(jí)泵的自動(dòng)啟閉，自動(dòng)過載保護(hù)的成套真空獲得設(shè)備。

This unit is complete vacuum equipment which treats general Roots vacuum pump as the main pump, two-stage water-ring vacuum pump as prepump to achieve automatic open, close and overload protection.

常用真空泵bao括干式螺桿真空泵、水環(huán)泵、往復(fù)泵、滑閥泵、旋片泵、羅茨泵和擴(kuò)散泵等，這些泵是我國(guó)國(guó)民經(jīng)濟(jì)各行業(yè)應(yīng)用真空工藝過程中必不可少的主力泵種。近年來，

伴隨著我國(guó)經(jīng)濟(jì)持續(xù)高速發(fā)展，真空泵相關(guān)下游應(yīng)用行業(yè)保持快速增長(zhǎng)勢(shì)頭，同時(shí)在真空泵應(yīng)用領(lǐng)域不斷拓展等因素的共同拉動(dòng)下，我國(guó)真空泵行業(yè)實(shí)現(xiàn)了持續(xù)穩(wěn)定地快速的發(fā)展。