水(shui)(shui)泵(beng)是(shi)(shi)輸(shu)送(song)(song)(song)液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)(ti)或使液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)(ti)增(zeng)壓的(de)機(ji)械。它將原(yuan)動(dong)機(ji)的(de)機(ji)械能(neng)或其他外部能(neng)量(liang)(liang)傳(chuan)送(song)(song)(song)給液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)(ti)，使液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)(ti)能(neng)量(liang)(liang)增(zeng)加，主(zhu)要用來輸(shu)送(song)(song)(song)液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)(ti)包(bao)括水(shui)(shui)、油、酸(suan)堿液(ye)(ye)(ye)(ye)、乳(ru)化(hua)液(ye)(ye)(ye)(ye)、懸乳(ru)液(ye)(ye)(ye)(ye)和(he)液(ye)(ye)(ye)(ye)態金(jin)屬等(deng)(deng)，也可輸(shu)送(song)(song)(song)液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)(ti)、氣(qi)體(ti)(ti)(ti)(ti)(ti)混(hun)合物以及含懸浮(fu)固體(ti)(ti)(ti)(ti)(ti)物的(de)液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)(ti)。衡量(liang)(liang)水(shui)(shui)泵(beng)性能(neng)的(de)技(ji)術參數有流量(liang)(liang)、吸程、揚程、軸功(gong)率、水(shui)(shui)功(gong)率、效率等(deng)(deng)；根(gen)據不同的(de)工作原(yuan)理可分(fen)為容積(ji)水(shui)(shui)泵(beng)、葉(xie)(xie)片(pian)泵(beng)等(deng)(deng)類型。容積(ji)泵(beng)是(shi)(shi)利用其工作室容積(ji)的(de)變化(hua)來傳(chuan)遞能(neng)量(liang)(liang)；葉(xie)(xie)片(pian)泵(beng)是(shi)(shi)利用回轉葉(xie)(xie)片(pian)與(yu)水(shui)(shui)的(de)相互作用來傳(chuan)遞能(neng)量(liang)(liang)，有離心泵(beng)、軸流泵(beng)和(he)混(hun)流泵(beng)等(deng)(deng)類型。