冷卻塔水輪機驅動風機可行性

1、提升水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)從熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)池(chi)取水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)，提升到(dao)冷(leng)卻(que)塔(ta)配(pei)(pei)(pei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)出口含噴嘴出口所(suo)需(xu)要(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)壓力(li)(li)(li)由以(yi)(yi)下(xia)幾部(bu)(bu)(bu)(bu)分(fen)組成：1凈(jing)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)h凈(jing)：水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)在(zai)熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)池(chi)吸水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)最低(di)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)標(biao)(biao)高至冷(leng)卻(que)塔(ta)內(nei)配(pei)(pei)(pei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)中(zhong)心(xin)線的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)標(biao)(biao)高，稱(cheng)為(wei)(wei)(wei)(wei)(wei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)需(xu)要(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)凈(jing)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)，用(yong)(yong)(yong)(yong)(yong)H凈(jing)或(huo)h凈(jing)表(biao)示。例如(ru)，地(di)面(mian)標(biao)(biao)高±0、00計(ji)(ji)，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)在(zai)熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)池(chi)中(zhong)最低(di)吸水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)位(wei)標(biao)(biao)高為(wei)(wei)(wei)(wei)(wei)-2、2m，冷(leng)卻(que)塔(ta)內(nei)配(pei)(pei)(pei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)中(zhong)心(xin)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)標(biao)(biao)高為(wei)(wei)(wei)(wei)(wei)12、8m槽(cao)式(shi)(shi)(shi)(shi)、池(chi)式(shi)(shi)(shi)(shi)配(pei)(pei)(pei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)標(biao)(biao)高以(yi)(yi)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)面(mian)計(ji)(ji)，則(ze)(ze)(ze)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)凈(jing)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)h凈(jing)=12、8--2、2=15、0m。2管(guan)(guan)(guan)(guan)(guan)路(lu)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)沿(yan)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)hλ：從水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)吸水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)至冷(leng)卻(que)塔(ta)內(nei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)配(pei)(pei)(pei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流(liu)(liu)(liu)在(zai)管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)內(nei)流(liu)(liu)(liu)動(dong)(dong)(dong)過(guo)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)中(zhong)因摩(mo)擦產(chan)(chan)(chan)生的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)能量(liang)(liang)(liang)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)，稱(cheng)為(wei)(wei)(wei)(wei)(wei)沿(yan)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)hλ。在(zai)相(xiang)(xiang)(xiang)同管(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)、相(xiang)(xiang)(xiang)同流(liu)(liu)(liu)量(liang)(liang)(liang)情(qing)況下(xia)，管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)內(nei)壁光潔(jie)度越(yue)好，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)越(yue)小(xiao)(xiao)，故(gu)塑料管(guan)(guan)(guan)(guan)(guan)、玻璃(li)鋼管(guan)(guan)(guan)(guan)(guan)、復合管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)小(xiao)(xiao)于鋼管(guan)(guan)(guan)(guan)(guan)、鑄鐵管(guan)(guan)(guan)(guan)(guan)含球墨(mo)鑄鐵管(guan)(guan)(guan)(guan)(guan)。管(guan)(guan)(guan)(guan)(guan)內(nei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)速與管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)直徑(jing)(jing)成反(fan)比，沿(yan)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)與流(liu)(liu)(liu)速平方(fang)成正(zheng)比，故(gu)流(liu)(liu)(liu)量(liang)(liang)(liang)不(bu)(bu)變(bian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)情(qing)況下(xia)，管(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)越(yue)小(xiao)(xiao)，流(liu)(liu)(liu)速越(yue)大(da)，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)就(jiu)增(zeng)大(da)。若在(zai)較長的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)中(zhong)，沿(yan)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)各(ge)(ge)段(duan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)直徑(jing)(jing)可(ke)能是(shi)變(bian)化的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，則(ze)(ze)(ze)應按(an)管(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)(bu)同分(fen)別計(ji)(ji)算(suan)(suan)沿(yan)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)hλ，最后相(xiang)(xiang)(xiang)加(jia)得(de)(de)Σhλ。對于冷(leng)卻(que)塔(ta)來(lai)說(shuo)，沿(yan)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)量(liang)(liang)(liang)是(shi)不(bu)(bu)變(bian)化的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，因此管(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)也(ye)是(shi)相(xiang)(xiang)(xiang)同的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，故(gu)不(bu)(bu)存在(zai)分(fen)段(duan)計(ji)(ji)算(suan)(suan)。沿(yan)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)可(ke)根(gen)據管(guan)(guan)(guan)(guan)(guan)徑(jing)(jing)、流(liu)(liu)(liu)速、管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)長度、管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)材(cai)料查(cha)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)力(li)(li)(li)計(ji)(ji)算(suan)(suan)表(biao)而(er)得(de)(de)。3局部(bu)(bu)(bu)(bu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)hf從水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)吸水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)頭(tou)部(bu)(bu)(bu)(bu)起，管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)系(xi)統(tong)中(zhong)設(she)(she)有喇(la)叭口、各(ge)(ge)種彎頭(tou)管(guan)(guan)(guan)(guan)(guan)、異徑(jing)(jing)管(guan)(guan)(guan)(guan)(guan)、閥門、止(zhi)回閥、三通管(guan)(guan)(guan)(guan)(guan)等，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流(liu)(liu)(liu)流(liu)(liu)(liu)經這些(xie)部(bu)(bu)(bu)(bu)門均會(hui)造成能量(liang)(liang)(liang)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)，稱(cheng)為(wei)(wei)(wei)(wei)(wei)局部(bu)(bu)(bu)(bu)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)，計(ji)(ji)算(suan)(suan)式(shi)(shi)(shi)(shi)為(wei)(wei)(wei)(wei)(wei)hf=ξV22g。因阻(zu)力(li)(li)(li)系(xi)數ξ和流(liu)(liu)(liu)速V不(bu)(bu)同，故(gu)各(ge)(ge)局部(bu)(bu)(bu)(bu)阻(zu)力(li)(li)(li)hfi是(shi)不(bu)(bu)相(xiang)(xiang)(xiang)同的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，把計(ji)(ji)算(suan)(suan)所(suo)得(de)(de)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)各(ge)(ge)局部(bu)(bu)(bu)(bu)阻(zu)力(li)(li)(li)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)相(xiang)(xiang)(xiang)加(jia)，得(de)(de)系(xi)統(tong)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)總局部(bu)(bu)(bu)(bu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)Σhf。綜上(shang)(shang)所(suo)述(shu)，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)所(suo)需(xu)要(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)理(li)(li)論(lun)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)：2、選用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)式(shi)(shi)(shi)(shi)8-1是(shi)設(she)(she)計(ji)(ji)計(ji)(ji)算(suan)(suan)所(suo)得(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)需(xu)要(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)理(li)(li)論(lun)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)，但考慮(lv)到(dao)各(ge)(ge)種原(yuan)(yuan)因，其(qi)中(zhong)包(bao)括可(ke)能產(chan)(chan)(chan)生的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)算(suan)(suan)誤差，運(yun)行過(guo)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)中(zhong)管(guan)(guan)(guan)(guan)(guan)內(nei)壁粗糙度的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)增(zeng)加(jia)、管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)過(guo)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)斷面(mian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)縮小(xiao)(xiao)等，均會(hui)增(zeng)加(jia)能量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)消耗而(er)增(zeng)加(jia)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)損(sun)(sun)(sun)(sun)失(shi)(shi)(shi)，故(gu)設(she)(she)計(ji)(ji)單(dan)(dan)(dan)位(wei)在(zai)確(que)定(ding)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)時，在(zai)理(li)(li)論(lun)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)基礎(chu)上(shang)(shang)再增(zeng)加(jia)≥4m，則(ze)(ze)(ze)設(she)(she)計(ji)(ji)單(dan)(dan)(dan)位(wei)確(que)定(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)：而(er)實(shi)際(ji)選用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)比式(shi)(shi)(shi)(shi)8-2的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)要(yao)(yao)(yao)大(da)，原(yuan)(yuan)因主要(yao)(yao)(yao)為(wei)(wei)(wei)(wei)(wei)以(yi)(yi)下(xia)兩方(fang)面(mian)：一是(shi)按(an)式(shi)(shi)(shi)(shi)8-2的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)要(yao)(yao)(yao)求(qiu)(qiu)不(bu)(bu)容易選到(dao)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)，如(ru)選小(xiao)(xiao)一些(xie)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)，則(ze)(ze)(ze)不(bu)(bu)安全(quan)，故(gu)選用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)比式(shi)(shi)(shi)(shi)8-2的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)；二是(shi)用(yong)(yong)(yong)(yong)(yong)戶單(dan)(dan)(dan)位(wei)在(zai)選用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)時并(bing)不(bu)(bu)知道(dao)(dao)設(she)(she)計(ji)(ji)單(dan)(dan)(dan)位(wei)在(zai)理(li)(li)論(lun)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)基礎(chu)上(shang)(shang)已(yi)加(jia)上(shang)(shang)≥4m，因此在(zai)式(shi)(shi)(shi)(shi)8-2的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)基礎(chu)上(shang)(shang)又(you)增(zeng)加(jia)了約(yue)5m左(zuo)(zuo)右的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)。所(suo)以(yi)(yi)實(shi)際(ji)選用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)比理(li)(li)論(lun)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)一般(ban)都大(da)于5m以(yi)(yi)上(shang)(shang)，稱(cheng)為(wei)(wei)(wei)(wei)(wei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)富(fu)余(yu)(yu)(yu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)，或(huo)稱(cheng)為(wei)(wei)(wei)(wei)(wei)富(fu)余(yu)(yu)(yu)壓力(li)(li)(li)。例如(ru)某400th冷(leng)卻(que)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)冷(leng)卻(que)塔(ta)，計(ji)(ji)算(suan)(suan)結果(guo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)h凈(jing)=13、5m，Σhλ=2、8m，Σhf=1、7m，故(gu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)理(li)(li)論(lun)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)H=13、5+2、8+1、7=18m；現(xian)(xian)若考慮(lv)確(que)保(bao)安全(quan)，在(zai)理(li)(li)論(lun)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)基礎(chu)上(shang)(shang)再增(zeng)加(jia)5m水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)，則(ze)(ze)(ze)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)H=18m+5m=23m。按(an)原(yuan)(yuan)H=18m、Q=400th，可(ke)選用(yong)(yong)(yong)(yong)(yong)10sh-13A水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)，主要(yao)(yao)(yao)參(can)數為(wei)(wei)(wei)(wei)(wei)：Q=342～482m3h；H=22、2～17、4m水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)軸(zhou)功(gong)(gong)率(lv)(lv)(lv)N=25、8～28kW；電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)軸(zhou)功(gong)(gong)率(lv)(lv)(lv)N=40kW；效(xiao)率(lv)(lv)(lv)η=80%，83%。現(xian)(xian)要(yao)(yao)(yao)求(qiu)(qiu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)H=23m，則(ze)(ze)(ze)選用(yong)(yong)(yong)(yong)(yong)10sh-13水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)，主要(yao)(yao)(yao)參(can)數為(wei)(wei)(wei)(wei)(wei)：Q=360～576m3h；H=27、0～19、0m水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)軸(zhou)功(gong)(gong)率(lv)(lv)(lv)N=33、1～36、4kW；電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)軸(zhou)功(gong)(gong)率(lv)(lv)(lv)N=55kW；效(xiao)率(lv)(lv)(lv)η=80、0%～86、0%。查(cha)10sh-13水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)特(te)性曲線，當流(liu)(liu)(liu)量(liang)(liang)(liang)Q=400m3h時，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)壓力(li)(li)(li)為(wei)(wei)(wei)(wei)(wei)26m，因此水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)實(shi)際(ji)富(fu)余(yu)(yu)(yu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)為(wei)(wei)(wei)(wei)(wei)8m。電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)功(gong)(gong)率(lv)(lv)(lv)增(zeng)加(jia)了15kW。按(an)標(biao)(biao)準型Δt=5℃400m3h低(di)噪聲冷(leng)卻(que)塔(ta)，配(pei)(pei)(pei)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)風(feng)機(ji)(ji)(ji)(ji)(ji)直徑(jing)(jing)為(wei)(wei)(wei)(wei)(wei)3800mm，轉速為(wei)(wei)(wei)(wei)(wei)n=165rmin，風(feng)量(liang)(liang)(liang)G=185000m3h，配(pei)(pei)(pei)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)功(gong)(gong)率(lv)(lv)(lv)為(wei)(wei)(wei)(wei)(wei)N=715kW。現(xian)(xian)按(an)Q=400m3h，水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)富(fu)余(yu)(yu)(yu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)8m為(wei)(wei)(wei)(wei)(wei)例，能產(chan)(chan)(chan)生715kW的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)軸(zhou)功(gong)(gong)率(lv)(lv)(lv)使水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)輪(lun)(lun)(lun)機(ji)(ji)(ji)(ji)(ji)驅(qu)(qu)動(dong)(dong)(dong)風(feng)機(ji)(ji)(ji)(ji)(ji)轉動(dong)(dong)(dong)，達(da)到(dao)設(she)(she)計(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)風(feng)量(liang)(liang)(liang)，則(ze)(ze)(ze)就(jiu)可(ke)省去715kW的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)，達(da)到(dao)節約(yue)能量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。利用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)富(fu)余(yu)(yu)(yu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)H產(chan)(chan)(chan)生推動(dong)(dong)(dong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)輪(lun)(lun)(lun)機(ji)(ji)(ji)(ji)(ji)轉動(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)有效(xiao)軸(zhou)功(gong)(gong)率(lv)(lv)(lv)計(ji)(ji)算(suan)(suan)式(shi)(shi)(shi)(shi)為(wei)(wei)(wei)(wei)(wei)：式(shi)(shi)(shi)(shi)中(zhong)γ——水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)密度kgL或(huo)kgm3，1m3·H2O=1000kg；Q——水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)量(liang)(liang)(liang)m3s；H——水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)富(fu)余(yu)(yu)(yu)揚(yang)(yang)(yang)(yang)(yang)(yang)(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)m；η——水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)輪(lun)(lun)(lun)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)效(xiao)率(lv)(lv)(lv)，越(yue)高越(yue)好，現(xian)(xian)研制的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)推動(dong)(dong)(dong)冷(leng)卻(que)塔(ta)風(feng)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)最高效(xiao)率(lv)(lv)(lv)可(ke)到(dao)88%，一般(ban)為(wei)(wei)(wei)(wei)(wei)70%～80%左(zuo)(zuo)右。如(ru)果(guo)式(shi)(shi)(shi)(shi)8-3中(zhong)不(bu)(bu)除以(yi)(yi)102，則(ze)(ze)(ze)單(dan)(dan)(dan)位(wei)為(wei)(wei)(wei)(wei)(wei)kg·ms，故(gu)1kW=1、36馬力(li)(li)(li)，所(suo)以(yi)(yi)除以(yi)(yi)102得(de)(de)功(gong)(gong)率(lv)(lv)(lv)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)單(dan)(dan)(dan)位(wei)為(wei)(wei)(wei)(wei)(wei)kW。因水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)密度γ=1000kgm3，則(ze)(ze)(ze)1000102=9、804，代入(ru)式(shi)(shi)(shi)(shi)823得(de)(de)：現(xian)(xian)按(an)上(shang)(shang)述(shu)：Q=400m3h≈0、1111m3s；H=8m；水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)輪(lun)(lun)(lun)機(ji)(ji)(ji)(ji)(ji)效(xiao)率(lv)(lv)(lv)η=85%～88%。代入(ru)式(shi)(shi)(shi)(shi)8-4中(zhong)，得(de)(de)N效(xiao)=7、41～7、67kW，而(er)原(yuan)(yuan)配(pei)(pei)(pei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)驅(qu)(qu)動(dong)(dong)(dong)冷(leng)卻(que)塔(ta)風(feng)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)功(gong)(gong)率(lv)(lv)(lv)N=7、5kW，這說(shuo)明利用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)富(fu)余(yu)(yu)(yu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)頭(tou)來(lai)推動(dong)(dong)(dong)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)輪(lun)(lun)(lun)機(ji)(ji)(ji)(ji)(ji)驅(qu)(qu)動(dong)(dong)(dong)風(feng)機(ji)(ji)(ji)(ji)(ji)轉動(dong)(dong)(dong)，達(da)到(dao)設(she)(she)計(ji)(ji)要(yao)(yao)(yao)求(qiu)(qiu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)風(feng)量(liang)(liang)(liang)和冷(leng)卻(que)效(xiao)果(guo)，是(shi)可(ke)能的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)和可(ke)行的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，關鍵(jian)是(shi)要(yao)(yao)(yao)研制高效(xiao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)、符(fu)合冷(leng)卻(que)塔(ta)中(zhong)推動(dong)(dong)(dong)風(feng)機(ji)(ji)(ji)(ji)(ji)轉動(dong)(dong)(dong)達(da)到(dao)設(she)(she)計(ji)(ji)轉速的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)輪(lun)(lun)(lun)機(ji)(ji)(ji)(ji)(ji)。

水動風機冷卻塔節能與設計要求

用水輪機(ji)取(qu)代電動機(ji)驅(qu)動風機(ji)，具有(you)明顯的(de)優特(te)點，但(dan)不同(tong)規格的(de)冷(leng)卻(que)塔究(jiu)竟具有(you)多少富(fu)余(yu)水頭可以(yi)進(jin)行改造，如何理解(jie)水動風機(ji)冷(leng)卻(que)塔的(de)節能等，本節進(jin)行一些分析(xi)研究(jiu)和(he)討論，共(gong)同(tong)進(jin)行必(bi)要的(de)商榷(que)。