螺旋(xuan)泵(beng)(beng)，亦稱“螺旋(xuan)揚水(shui)(shui)(shui)(shui)機(ji)”、“阿(a)基米(mi)德螺旋(xuan)泵(beng)(beng)”。利用(yong)螺旋(xuan)葉片(pian)(pian)的旋(xuan)轉，使(shi)水(shui)(shui)(shui)(shui)體沿軸(zhou)向螺旋(xuan)形上(shang)升的一種泵(beng)(beng)。由軸(zhou)、螺旋(xuan)葉片(pian)(pian)、外(wai)殼組成(cheng)。抽水(shui)(shui)(shui)(shui)時(shi)，將泵(beng)(beng)斜置水(shui)(shui)(shui)(shui)中(zhong)，使(shi)水(shui)(shui)(shui)(shui)泵(beng)(beng)主軸(zhou)的傾角(jiao)小(xiao)(xiao)于螺旋(xuan)葉片(pian)(pian)的傾角(jiao)，螺旋(xuan)葉片(pian)(pian)的下端(duan)與水(shui)(shui)(shui)(shui)接觸。當原動機(ji)通(tong)過(guo)變(bian)速裝(zhuang)置帶動螺旋(xuan)泵(beng)(beng)軸(zhou)旋(xuan)轉時(shi)，水(shui)(shui)(shui)(shui)就(jiu)進入葉片(pian)(pian)，沿螺旋(xuan)型(xing)流道上(shang)升，直至出流。結構簡單，制造容易，流量較(jiao)大，水(shui)(shui)(shui)(shui)頭損(sun)失小(xiao)(xiao)，效(xiao)率較(jiao)高，便于維修和(he)保養，但揚程低，轉速低，需設變(bian)速裝(zhuang)置。多用(yong)于灌溉、排澇(lao)，以及提(ti)升污(wu)(wu)水(shui)(shui)(shui)(shui)、污(wu)(wu)泥等場(chang)合。中(zhong)國從20世(shi)紀70年代開(kai)始使(shi)用(yong)。