發電廠凝結水泵變頻器的節能改造

jinrudaoxinshijiyilai，suizhewoguoshichangjingjishuipingdexunsutisheng，woguogexiangjichugongchengbuduanshenru，erhuanjingwuranheziyuanduanquezheliangdawentiyijingchengweilexianzhiwoguojingjifazhandezuizhuyaoyinsu。woguodedianlishengchanjigouhaonengjuda，fadianguochengzhongsuoshiyongdemeitanliangyijingzhandaolequanguomeitanzongchanliangdeyibanzuoyou
，tongshihaipaifangchuledaliangdewuranwu
，yinci，fadianchangdejienenggongzuoshiyixiangfeichangzhongyaodegongzuo。zaihuodianchang的熱力循環係統中
，凝結水係統是一個核心的組成部分
，係統中的各個設備雖都能較好的實現自身功能，但是運行的效率卻都較低，所以，我們應更加重視凝結水泵變頻器的節能改造工作，大力的推廣和響應可持續發展的戰略思想，同時也為發電企業創造更好的經濟效益。本文便對發電廠凝結水泵變頻器節能改造前的情況
、發電廠凝結水泵變頻器的改造原理
、發(fa)電(dian)廠(chang)凝(ning)結(jie)水(shui)泵(beng)變(bian)頻(pin)器(qi)的(de)改(gai)造(zao)成(cheng)果(guo)以(yi)及(ji)發(fa)電(dian)廠(chang)凝(ning)結(jie)水(shui)泵(beng)變(bian)頻(pin)器(qi)改(gai)造(zao)後(hou)的(de)節(jie)能(neng)分(fen)析(xi)四(si)個(ge)方(fang)麵(mian)的(de)內(nei)容(rong)進(jin)行(xing)了(le)詳(xiang)細(xi)的(de)分(fen)析(xi)和(he)探(tan)析(xi)
，從(cong)而(er)詳(xiang)細(xi)的(de)論(lun)述(shu)了(le)我(wo)國(guo)發(fa)電(dian)廠(chang)凝(ning)結(jie)水(shui)泵(beng)變(bian)頻(pin)器(qi)的(de)節(jie)能(neng)改(gai)造(zao)工(gong)作(zuo)。

1 發電廠凝結水泵變頻器節能改造前的情況

一般情況下，發電廠凝結水係統的工作流程為：凝汽器冷卻-熱井-凝結水泵-精處理設備-相關設備組低加-除chu氧yang器qi。而er發fa電dian廠chang為wei了le降jiang低di其qi工gong質zhi損sun失shi
，也ye都dou會hui采cai取qu相xiang應ying的de控kong製zhi措cuo施shi
，但dan是shi卻que還hai是shi無wu法fa取qu得de較jiao好hao的de循xun環huan效xiao果guo，要yao想xiang確que保bao循xun環huan過guo程cheng的de高gao效xiao穩wen定ding
，還hai必bi須xu人ren工gong進jin行xing補bu充chong。在zai凝ning汽qi器qi中zhong繼ji續xu補bu充chong水shui，同tong時shi調tiao節jie水shui量liang時shi必bi須xu考kao慮lv到dao除chu氧yang器qi水shui位wei和he熱re井jing水shui位wei這zhe兩liang大da因yin素su，雖sui然ran卻que是shi提ti高gao了le熱re循xun環huan的de經jing濟ji效xiao益yi，但dan是shi也ye加jia大da了le機ji組zu水shui位wei調tiao節jie的de複fu雜za程cheng度du。

通(tong)常(chang)調(tiao)節(jie)凝(ning)結(jie)水(shui)泵(beng)的(de)流(liu)量(liang)時(shi)，我(wo)們(men)選(xuan)擇(ze)擋(dang)板(ban)式(shi)的(de)調(tiao)節(jie)方(fang)式(shi)，這(zhe)種(zhong)方(fang)式(shi)無(wu)法(fa)有(you)效(xiao)的(de)改(gai)變(bian)驅(qu)動(dong)源(yuan)的(de)輸(shu)出(chu)功(gong)率(lv)，既(ji)浪(lang)費(fei)了(le)大(da)量(liang)的(de)電(dian)源(yuan)，同(tong)時(shi)也(ye)產(chan)生(sheng)了(le)很(hen)大(da)的(de)節(jie)流(liu)損(sun)失(shi)，這(zhe)就(jiu)直(zhi)接(jie)導(dao)致(zhi)了(le)我(wo)國(guo)發(fa)電(dian)企(qi)業(ye)的(de)十(shi)分(fen)高(gao)的(de)生(sheng)產(chan)成(cheng)本(ben)。另(ling)外(wai)
，在(zai)機(ji)組(zu)啟(qi)動(dong)的(de)過(guo)程(cheng)中(zhong)，衝(chong)擊(ji)電(dian)流(liu)也(ye)是(shi)要(yao)遠(yuan)大(da)於(yu)正(zheng)常(chang)的(de)電(dian)流(liu)的(de)，同(tong)樣(yang)也(ye)會(hui)對(dui)機(ji)組(zu)設(she)備(bei)造(zao)成(cheng)一(yi)定(ding)的(de)損(sun)害(hai)。在(zai)進(jin)行(xing)節(jie)能(neng)改(gai)造(zao)前(qian)，作(zuo)為(wei)反(fan)應(ying)電(dian)機(ji)內(nei)部(bu)相(xiang)間(jian)的(de)短(duan)路(lu)故(gu)障(zhang)
，在(zai)出(chu)現(xian)短(duan)路(lu)的(de)問(wen)題(ti)時(shi)
，大(da)型(xing)機(ji)電(dian)差(cha)動(dong)保(bao)護(hu)會(hui)保(bao)護(hu)可(ke)靠(kao)動(dong)作(zuo)，所(suo)以(yi)其(qi)必(bi)須(xu)與(yu)保(bao)護(hu)區(qu)外(wai)相(xiang)鄰(lin)元(yuan)件(jian)保(bao)護(hu)在(zai)動(dong)作(zuo)值(zhi)和(he)動(dong)作(zuo)時(shi)緊(jin)密(mi)的(de)配(pei)合(he)，這(zhe)就(jiu)出(chu)現(xian)故(gu)障(zhang)時(shi)就(jiu)可(ke)以(yi)做(zuo)出(chu)即(ji)時(shi)的(de)反(fan)應(ying)了(le)。變(bian)頻(pin)器(qi)節(jie)能(neng)改(gai)造(zao)之(zhi)前(qian)，差(cha)動(dong)保(bao)護(hu)在(zai)兩(liang)側(ce)會(hui)出(chu)現(xian)明(ming)顯(xian)的(de)差(cha)流(liu)，如(ru)果(guo)這(zhe)個(ge)差(cha)流(liu)值(zhi)大(da)於(yu)保(bao)護(hu)整(zheng)定(ding)值(zhi)，那(na)麼(me)就(jiu)會(hui)出(chu)現(xian)差(cha)動(dong)保(bao)護(hu)誤(wu)動(dong)作(zuo)，此(ci)時(shi)差(cha)動(dong)保(bao)護(hu)就(jiu)無(wu)法(fa)滿(man)足(zu)電(dian)機(ji)相(xiang)間(jian)短(duan)路(lu)的(de)要(yao)求(qiu)了(le)。

2 發電廠凝結水泵變頻器的改造原理

在對凝結水泵變頻器進行改造之前，我們必須妥善的解決以下幾個問題：首先，必須嚴格的管控設備安裝的位置和設備室，確保其內部是有足夠的空間的，這對日後的維修和保養工作也是十分有利的;qici
，yaobaozhengzhengtishebeijuyoulianghaodeyunxinghuanjing，bixushimeiyourenhezawuhehuichen，zairejiaohuandeguochengzhonghaiyaofangzhizawujinrudaobianpinqizhong，congerweidianchangdailaibubiyaodejingjisunshi。

確que定ding最zui終zhong的de改gai造zao方fang案an之zhi前qian，應ying先xian詳xiang細xi分fen析xi凝ning結jie水shui泵beng設she備bei的de特te點dian，之zhi後hou再zai進jin行xing設she備bei設she計ji的de工gong作zuo。而er如ru果guo凝ning結jie水shui泵beng是shi在zai較jiao低di的de負fu荷he下xia進jin行xing工gong作zuo時shi，我wo們men必bi須xu保bao證zheng凝ning結jie水shui母mu管guan的de壓ya力li值zhi是shi出chu於yu正zheng常chang的de狀zhuang態tai的de，這zhe樣yang才cai能neng保bao證zheng提ti供gong給gei低di壓ya旁pang路lu的de減jian溫wen水shui、汽輪機低壓軸封的減溫水、低壓噴缸的減溫水以及水泵機械設備的密封水都是足夠的;在設計新方案的過程中
，應協調並且控製好除氧器水位
、凝汽器水位以及凝汽器母管壓力等參數值。在經過充分的實踐驗證後，我們確定了將凝結水泵的轉速控製係統、凝(ning)結(jie)水(shui)整(zheng)閥(fa)門(men)控(kong)製(zhi)係(xi)統(tong)和(he)補(bu)充(chong)水(shui)閥(fa)門(men)控(kong)製(zhi)係(xi)統(tong)設(she)置(zhi)為(wei)控(kong)製(zhi)係(xi)統(tong)，這(zhe)樣(yang)就(jiu)充(chong)分(fen)的(de)提(ti)高(gao)機(ji)組(zu)運(yun)行(xing)的(de)經(jing)濟(ji)性(xing)和(he)穩(wen)定(ding)性(xing)


，同(tong)時(shi)也(ye)保(bao)證(zheng)了(le)凝(ning)汽(qi)器(qi)水(shui)位(wei)、凝結水母管的壓力以及除氧器的水位等參數都處於最佳的工作狀態。

對於解決凝結水泵電機保護這一問題
，我們應重點解決差流誤動的問題
，建議將差動電源側TAzhuanyidaobianpinqichuxiancedeweizhichu
，zheyangyejiufangbianledianjiliangcezaibianpinhoudedianliujinxingbijiao。ruguomeiyoucaiyongbaoliuchadongbaohuzheyifangfa
，haikeyixuanzeanzhuangxiangyingdegaoyabianpinzhuangzhizheyifangfa
，birushuokeyianzhuangMAXF高壓變頻裝置等設備。

3 發電廠凝結水泵變頻器的改造成果

3.1 凝汽器的水位控製

作(zuo)為(wei)非(fei)常(chang)重(zhong)要(yao)的(de)反(fan)饋(kui)信(xin)號(hao)


，凝(ning)汽(qi)器(qi)的(de)水(shui)位(wei)值(zhi)能(neng)夠(gou)有(you)效(xiao)的(de)減(jian)小(xiao)凝(ning)汽(qi)器(qi)的(de)水(shui)位(wei)波(bo)動(dong)情(qing)況(kuang)，另(ling)外(wai)，在(zai)補(bu)充(chong)水(shui)的(de)過(guo)程(cheng)中(zhong)，控(kong)製(zhi)器(qi)也(ye)能(neng)夠(gou)在(zai)充(chong)分(fen)考(kao)慮(lv)所(suo)采(cai)集(ji)到(dao)的(de)凝(ning)結(jie)水(shui)流(liu)量(liang)和(he)凝(ning)汽(qi)器(qi)水(shui)位(wei)等(deng)參(can)數(shu)值(zhi)的(de)基(ji)礎(chu)上(shang)，準(zhun)確(que)的(de)控(kong)製(zhi)補(bu)充(chong)水(shui)閥(fa)門(men)，這(zhe)樣(yang)也(ye)就(jiu)更(geng)有(you)效(xiao)的(de)控(kong)製(zhi)了(le)整(zheng)個(ge)熱(re)循(xun)環(huan)係(xi)統(tong)的(de)運(yun)行(xing)。

3.2 除氧器的水位控製

zaijizuyunxingshi
，kongzhiqizaikaolvdaoxitongfankuixinxiyijiningjieshuimuguanyalidekongzhimoshidejichushang，jiangbianpinzidongdekongzhifangshifenweihuayakongzhihedingyakongzhiliangzhongfangshi，bingqiejiezhuyushebeideanniuduiqijinxingzhunquedetiaozhi。eryaoxiangqudezuijiadejienengjianpaidexiaoguo，womenhaiyingzaidingyadehuanjingzhongduigaizaowanchengdeningjieshuibengjinxingjiance，jianyiqigongzuoguochengyingshiyihuayadefangshiwanchengde。zaikongzhiqigongzuodeguochengzhong，qinenggoujiangshuiliuliangdebianhuaqingkuangzhuanhuaweixinxixiangxitongfankui
，ruguochuyangqideshuiweiyugeidingdeshuiweiyoupianli，namekongzhiqijiuhuijishidetiaojieningjieshuibengdezhuansu，baozhengchuyangqideshuiweichuyuzhengchangdegongzuozhi。

3.3 凝結水母管的壓力控製

weilezuidaxiandudetigaokongzhixitongdeshishixinghegongzuoxiaolv，womenhaiyingjiangningjieshuimuguandeyalizhizuoweifankuidexinhao
，kongzhiqihuiduizhexiefankuidexinhaojinxingxiangxidefenxibingzuochuzhunquedepanduan，zhihouhuikongzhiningjieshuimuguantiaozhengfamen，qudezuijiadeshuiliusudu

，congerqudelelixiangdejienengjianpaidexiaoguo。

4 發電廠凝結水泵變頻器改造後的節能分析

在(zai)工(gong)頻(pin)運(yun)行(xing)的(de)過(guo)程(cheng)中(zhong)，水(shui)泵(beng)主(zhu)要(yao)是(shi)借(jie)助(zhu)於(yu)調(tiao)節(jie)閥(fa)門(men)來(lai)控(kong)製(zhi)水(shui)量(liang)的(de)大(da)小(xiao)從(cong)而(er)符(fu)合(he)工(gong)藝(yi)方(fang)麵(mian)的(de)實(shi)際(ji)需(xu)求(qiu)，但(dan)是(shi)如(ru)果(guo)係(xi)統(tong)始(shi)終(zhong)是(shi)在(zai)高(gao)水(shui)壓(ya)的(de)情(qing)況(kuang)下(xia)工(gong)作(zuo)，那(na)麼(me)一(yi)旦(dan)係(xi)統(tong)末(mo)端(duan)的(de)需(xu)求(qiu)量(liang)出(chu)現(xian)變(bian)化(hua)，就(jiu)會(hui)大(da)大(da)的(de)降(jiang)低(di)了(le)係(xi)統(tong)的(de)工(gong)作(zuo)效(xiao)率(lv)
，同(tong)時(shi)也(ye)極(ji)大(da)的(de)造(zao)成(cheng)了(le)電(dian)能(neng)資(zi)源(yuan)的(de)浪(lang)費(fei)

，係(xi)統(tong)在(zai)高(gao)水(shui)壓(ya)的(de)狀(zhuang)態(tai)下(xia)工(gong)作(zuo)時(shi)，維(wei)修(xiu)和(he)保(bao)養(yang)等(deng)多(duo)項(xiang)費(fei)用(yong)都(dou)會(hui)有(you)所(suo)提(ti)高(gao)。而(er)在(zai)我(wo)們(men)對(dui)凝(ning)結(jie)水(shui)泵(beng)變(bian)頻(pin)器(qi)進(jin)行(xing)節(jie)能(neng)改(gai)造(zao)後(hou)
，就(jiu)有(you)效(xiao)了(le)解(jie)決(jue)了(le)這(zhe)一(yi)問(wen)題(ti)
，在(zai)對(dui)實(shi)驗(yan)數(shu)據(ju)進(jin)行(xing)整(zheng)合(he)和(he)計(ji)算(suan)的(de)過(guo)程(cheng)中(zhong)
，如(ru)果(guo)一(yi)台(tai)機(ji)組(zu)設(she)備(bei)每(mei)一(yi)年(nian)的(de)發(fa)電(dian)量(liang)按(an)照(zhao)6.5億千瓦?時來計算，隻需要兩年便可以收回投入的成本，大大的增加了發電企業的經濟效益。

ertongshiruguocaiyonglebianpinqihou，womenhainenggoushixianjizushebeiruanqidongdeguocheng，hainenggouyouxiaodejiangdidianliuchongjiduishebeizaochengdesunshang，yebaozhengledianjishebeiyunxingdeanquanxinghewendingxing。lingwai
，ningjieshuibengbianpinqijinxinglejienenggaizaohou，yedadadejiangdilehouxudeduijizushebeideweixiufeiyonghegenghuandefeiyong，weiqiyejieyuelehendayibizijin。caiyongbianpinqihou，nenggoubaozhengningjieshuibengdejiajiansutexingquxianhedianjizhuansudebianhuaquxianshiyizhide
，zaizhouchengshangjiubuzaiyouyinglifuzaizuoyongle，dadeyanchanglezhouchengdeshiyongshouming，jiansuleduijizushebeideweixiuhebaoyangdefeiyong。

5 結束語

通過以上的論述，我們對發電廠凝結水泵變頻器節能改造前的情況
、發電廠凝結水泵變頻器的改造原理
、fadianchangningjieshuibengbianpinqidegaizaochengguoyijifadianchangningjieshuibengbianpinqigaizaohoudejienengfenxisigefangmiandeneirongjinxinglexiangxidefenxihetantao。zaiduifadianchangningjieshuibengbianpinqijinxingjienenggaizaohou，qudelefeichanglixiangdejienengjianpaidexiaoguo，bingqieyeshixianledianjishebeideruanqidongdegongneng，jiangdilechongjidianliuduijizushebeisuozaochengdesunshang

，youxiaodejianshaolelaodonglifangmiandetouru。fadianchangcaiyongbianpinjishuhou
，dadadetigaoledianchangdeshengchanxiaoyi，tongshihaikeyijiaokuaideshouhuigenghuanshebeiyijiweixiushebeisuotourudechengben。xianjieduan，shehuidebuduanfazhanyeduijishugaigetichulegenggaodeyaoqiu

，yinci
，xiangguandejishurenyuanyeyingdadandejinxingchuangxin，lizhengchuangzaochuxingnenggengjia
、效率更高並且更加可行的電力設備係統。