本發明涉(she)及鋼鐵行業(ye)的節能技術領域(yu)，尤(you)其涉(she)及基于多壓模式的電爐煙氣余熱優化(hua)利用系(xi)統。

背景技術：

在電(dian)爐冶煉(lian)的過程(cheng)中，會產(chan)生大(da)量(liang)的高溫煙氣。這些高溫煙氣不僅(jin)帶走了大(da)量(liang)的熱能，而且還會影響下(xia)游除塵設備(bei)的運行，進而帶來環境污染問題。

近(jin)年來，隨著(zhu)鋼鐵企業對(dui)節能減排的(de)(de)日益重視，如何將煉鋼工序高溫煙氣中的(de)(de)顯熱(re)充分回(hui)收，變“廢”為(wei)寶，已經成為(wei)煉鋼企業日益關心(xin)的(de)(de)問(wen)題。

目前，工程上對于電爐(lu)煙(yan)氣的(de)(de)余(yu)(yu)熱(re)回(hui)收(shou)都采(cai)用(yong)(yong)單(dan)壓(ya)余(yu)(yu)熱(re)回(hui)收(shou)方式，這種余(yu)(yu)熱(re)回(hui)收(shou)方式存在一(yi)(yi)個問(wen)題，即煙(yan)氣余(yu)(yu)熱(re)利(li)用(yong)(yong)受到一(yi)(yi)定限制(zhi)，一(yi)(yi)般在200℃左(zuo)右，仍然存在較大的(de)(de)利(li)用(yong)(yong)空間。另一(yi)(yi)方面，由(you)于煙(yan)氣溫度(du)非常高，而汽水側(ce)溫度(du)較低，這種超大溫差的(de)(de)換(huan)熱(re)造成了過(guo)大的(de)(de)換(huan)熱(re)損，能(neng)量有效利(li)用(yong)(yong)率大打折扣。

對此，本發明擬構建(jian)一種基于多壓余熱回收(shou)(shou)模式的(de)電爐煙(yan)氣余熱優化利(li)用(yong)系統(tong)，充分回收(shou)(shou)電爐煙(yan)氣的(de)余熱并加以合理利(li)用(yong)，可(ke)產生較(jiao)為可(ke)觀的(de)經濟(ji)收(shou)(shou)益，具有重要的(de)實用(yong)意義。

技術實現要素：

本發(fa)明提供了一(yi)(yi)種基于(yu)多壓(ya)(ya)(ya)(ya)(ya)(ya)模式的(de)(de)(de)電爐(lu)煙(yan)(yan)(yan)氣(qi)(qi)(qi)余熱(re)(re)(re)優化(hua)(hua)利(li)用(yong)(yong)系(xi)(xi)統(tong)，包括從(cong)電爐(lu)1上(shang)方(fang)的(de)(de)(de)水(shui)(shui)冷(leng)(leng)(leng)(leng)(leng)(leng)彎頭(tou)(tou)2的(de)(de)(de)煙(yan)(yan)(yan)氣(qi)(qi)(qi)出口(kou)(kou)沿煙(yan)(yan)(yan)氣(qi)(qi)(qi)流動(dong)(dong)方(fang)向依次(ci)(ci)連(lian)(lian)通(tong)的(de)(de)(de)第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)3、第(di)(di)(di)二(er)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)4、燃燒(shao)沉降室5、第(di)(di)(di)三(san)(san)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)6和余熱(re)(re)(re)鍋(guo)(guo)爐(lu)8，余熱(re)(re)(re)鍋(guo)(guo)爐(lu)8中(zhong)(zhong)的(de)(de)(de)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)發(fa)器(qi)81、高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)省煤器(qi)82、中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)發(fa)器(qi)83、中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)省煤器(qi)84沿著(zhu)煙(yan)(yan)(yan)氣(qi)(qi)(qi)流動(dong)(dong)方(fang)向順次(ci)(ci)布置(zhi)，所(suo)(suo)(suo)述(shu)煙(yan)(yan)(yan)氣(qi)(qi)(qi)余熱(re)(re)(re)利(li)用(yong)(yong)系(xi)(xi)統(tong)又根據工作(zuo)壓(ya)(ya)(ya)(ya)(ya)(ya)力不同分(fen)成低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)汽(qi)(qi)(qi)(qi)水(shui)(shui)系(xi)(xi)統(tong)、中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)汽(qi)(qi)(qi)(qi)水(shui)(shui)系(xi)(xi)統(tong)、高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)汽(qi)(qi)(qi)(qi)水(shui)(shui)系(xi)(xi)統(tong)，其中(zhong)(zhong)，所(suo)(suo)(suo)述(shu)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)汽(qi)(qi)(qi)(qi)水(shui)(shui)系(xi)(xi)統(tong)用(yong)(yong)于(yu)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)3和燃燒(shao)沉降室5的(de)(de)(de)爐(lu)門51，由低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)筒(tong)9供應(ying)給(gei)(gei)水(shui)(shui)，從(cong)而(er)產生低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)汽(qi)(qi)(qi)(qi)；而(er)所(suo)(suo)(suo)述(shu)中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)汽(qi)(qi)(qi)(qi)水(shui)(shui)系(xi)(xi)統(tong)用(yong)(yong)于(yu)吸收(shou)第(di)(di)(di)二(er)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)、燃燒(shao)沉降室的(de)(de)(de)爐(lu)蓋52、余熱(re)(re)(re)鍋(guo)(guo)爐(lu)8的(de)(de)(de)中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)段的(de)(de)(de)煙(yan)(yan)(yan)氣(qi)(qi)(qi)熱(re)(re)(re)量，由中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)筒(tong)10供應(ying)給(gei)(gei)水(shui)(shui)，從(cong)而(er)產生中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)汽(qi)(qi)(qi)(qi)；所(suo)(suo)(suo)述(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)汽(qi)(qi)(qi)(qi)水(shui)(shui)系(xi)(xi)統(tong)用(yong)(yong)于(yu)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)第(di)(di)(di)三(san)(san)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)6、余熱(re)(re)(re)鍋(guo)(guo)爐(lu)8的(de)(de)(de)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)段，由高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)筒(tong)11供應(ying)給(gei)(gei)水(shui)(shui)，從(cong)而(er)產生高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)汽(qi)(qi)(qi)(qi)，所(suo)(suo)(suo)述(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)筒(tong)11、中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)筒(tong)10輸出的(de)(de)(de)蒸(zheng)汽(qi)(qi)(qi)(qi)分(fen)別經過(guo)蓄熱(re)(re)(re)器(qi)和過(guo)熱(re)(re)(re)器(qi)處理后(hou)與(yu)汽(qi)(qi)(qi)(qi)輪機21配合完(wan)成余熱(re)(re)(re)利(li)用(yong)(yong)，其中(zhong)(zhong)，所(suo)(suo)(suo)述(shu)第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)采(cai)用(yong)(yong)移動(dong)(dong)式煙(yan)(yan)(yan)道(dao)(dao)(dao)，所(suo)(suo)(suo)述(shu)第(di)(di)(di)二(er)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)和第(di)(di)(di)三(san)(san)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)采(cai)用(yong)(yong)固(gu)定式煙(yan)(yan)(yan)道(dao)(dao)(dao)，所(suo)(suo)(suo)述(shu)第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)的(de)(de)(de)煙(yan)(yan)(yan)氣(qi)(qi)(qi)進口(kou)(kou)端(duan)(duan)與(yu)所(suo)(suo)(suo)述(shu)水(shui)(shui)冷(leng)(leng)(leng)(leng)(leng)(leng)彎頭(tou)(tou)的(de)(de)(de)煙(yan)(yan)(yan)氣(qi)(qi)(qi)出口(kou)(kou)端(duan)(duan)連(lian)(lian)通(tong)且(qie)有(you)預設的(de)(de)(de)間隙，所(suo)(suo)(suo)述(shu)第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)的(de)(de)(de)煙(yan)(yan)(yan)氣(qi)(qi)(qi)出口(kou)(kou)端(duan)(duan)與(yu)所(suo)(suo)(suo)述(shu)第(di)(di)(di)二(er)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)的(de)(de)(de)煙(yan)(yan)(yan)氣(qi)(qi)(qi)進口(kou)(kou)端(duan)(duan)連(lian)(lian)通(tong)，所(suo)(suo)(suo)述(shu)第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)上(shang)安裝(zhuang)有(you)牽引裝(zhuang)置(zhi)，該牽引裝(zhuang)置(zhi)可驅動(dong)(dong)第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)進行水(shui)(shui)平移動(dong)(dong)，而(er)第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)的(de)(de)(de)煙(yan)(yan)(yan)氣(qi)(qi)(qi)出口(kou)(kou)端(duan)(duan)則貼在(zai)所(suo)(suo)(suo)述(shu)第(di)(di)(di)二(er)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)的(de)(de)(de)煙(yan)(yan)(yan)氣(qi)(qi)(qi)進口(kou)(kou)端(duan)(duan)上(shang)水(shui)(shui)平移動(dong)(dong)，從(cong)而(er)控制(zhi)第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)與(yu)水(shui)(shui)冷(leng)(leng)(leng)(leng)(leng)(leng)彎頭(tou)(tou)之間的(de)(de)(de)間隙，進而(er)調節(jie)進入第(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)道(dao)(dao)(dao)的(de)(de)(de)燃燒(shao)空(kong)氣(qi)(qi)(qi)量。

優選地，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)汽(qi)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)包(bao)括(kuo)(kuo)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)9、低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)循(xun)環(huan)(huan)泵(beng)(beng)(beng)12，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)9通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)(guo)第(di)(di)(di)(di)一(yi)下(xia)降管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)91與(yu)(yu)(yu)(yu)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)循(xun)環(huan)(huan)泵(beng)(beng)(beng)12連(lian)(lian)(lian)(lian)(lian)接，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)循(xun)環(huan)(huan)泵(beng)(beng)(beng)12的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)路分支為兩路，一(yi)路與(yu)(yu)(yu)(yu)第(di)(di)(di)(di)一(yi)汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)煙(yan)道(dao)3的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，另一(yi)路與(yu)(yu)(yu)(yu)燃燒(shao)沉(chen)降室(shi)5的(de)(de)(de)(de)(de)(de)(de)(de)爐(lu)門51的(de)(de)(de)(de)(de)(de)(de)(de)汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)裝(zhuang)置(zhi)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)一(yi)汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)煙(yan)道(dao)3的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)汽(qi)口(kou)(kou)(kou)(kou)(kou)(kou)、所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)燃燒(shao)沉(chen)降室(shi)5的(de)(de)(de)(de)(de)(de)(de)(de)爐(lu)門51的(de)(de)(de)(de)(de)(de)(de)(de)汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)裝(zhuang)置(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)汽(qi)口(kou)(kou)(kou)(kou)(kou)(kou)與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)9的(de)(de)(de)(de)(de)(de)(de)(de)上(shang)升管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)；所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)汽(qi)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)包(bao)括(kuo)(kuo)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)給(gei)(gei)(gei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)13、中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)10、中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)循(xun)環(huan)(huan)泵(beng)(beng)(beng)15，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)9通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)(guo)第(di)(di)(di)(di)一(yi)出(chu)(chu)(chu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)93與(yu)(yu)(yu)(yu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)給(gei)(gei)(gei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)13連(lian)(lian)(lian)(lian)(lian)接，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)給(gei)(gei)(gei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)13的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)路與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)余(yu)熱(re)(re)鍋(guo)(guo)(guo)(guo)爐(lu)8中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)省(sheng)(sheng)(sheng)煤(mei)器(qi)(qi)84的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)省(sheng)(sheng)(sheng)煤(mei)器(qi)(qi)84的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)10的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，并(bing)且所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)10通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)(guo)第(di)(di)(di)(di)三下(xia)降管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)101與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)余(yu)熱(re)(re)鍋(guo)(guo)(guo)(guo)爐(lu)8中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)發(fa)器(qi)(qi)83的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)相連(lian)(lian)(lian)(lian)(lian)，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)發(fa)器(qi)(qi)83的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)汽(qi)口(kou)(kou)(kou)(kou)(kou)(kou)與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)10的(de)(de)(de)(de)(de)(de)(de)(de)上(shang)升管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，形(xing)(xing)成(cheng)一(yi)個(ge)自然循(xun)環(huan)(huan)回路；所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)10通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)(guo)第(di)(di)(di)(di)四下(xia)降管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)104與(yu)(yu)(yu)(yu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)循(xun)環(huan)(huan)泵(beng)(beng)(beng)15連(lian)(lian)(lian)(lian)(lian)接，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)循(xun)環(huan)(huan)泵(beng)(beng)(beng)15的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)分為兩個(ge)支路，分別與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)二(er)汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)煙(yan)道(dao)4的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)以(yi)及燃燒(shao)沉(chen)降室(shi)5的(de)(de)(de)(de)(de)(de)(de)(de)爐(lu)蓋52的(de)(de)(de)(de)(de)(de)(de)(de)汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)裝(zhuang)置(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)二(er)汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)煙(yan)道(dao)4的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)汽(qi)口(kou)(kou)(kou)(kou)(kou)(kou)以(yi)及燃燒(shao)沉(chen)降室(shi)5的(de)(de)(de)(de)(de)(de)(de)(de)爐(lu)蓋52的(de)(de)(de)(de)(de)(de)(de)(de)汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)裝(zhuang)置(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)汽(qi)口(kou)(kou)(kou)(kou)(kou)(kou)均通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)(guo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)10的(de)(de)(de)(de)(de)(de)(de)(de)上(shang)升管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，形(xing)(xing)成(cheng)閉式強制循(xun)環(huan)(huan)回路；所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)汽(qi)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)系(xi)統(tong)包(bao)括(kuo)(kuo)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)給(gei)(gei)(gei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)14、高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)11、高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)循(xun)環(huan)(huan)泵(beng)(beng)(beng)16，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)9通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)(guo)第(di)(di)(di)(di)二(er)出(chu)(chu)(chu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)92與(yu)(yu)(yu)(yu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)給(gei)(gei)(gei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)14連(lian)(lian)(lian)(lian)(lian)接，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)給(gei)(gei)(gei)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)(beng)14的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)余(yu)熱(re)(re)鍋(guo)(guo)(guo)(guo)爐(lu)8中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)省(sheng)(sheng)(sheng)煤(mei)器(qi)(qi)82的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)省(sheng)(sheng)(sheng)煤(mei)器(qi)(qi)82的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)11的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)11通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)(guo)第(di)(di)(di)(di)四下(xia)降管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)111與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)循(xun)環(huan)(huan)泵(beng)(beng)(beng)16連(lian)(lian)(lian)(lian)(lian)接，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)循(xun)環(huan)(huan)泵(beng)(beng)(beng)16的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)口(kou)(kou)(kou)(kou)(kou)(kou)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)三汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)煙(yan)道(dao)6的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)第(di)(di)(di)(di)三汽(qi)化(hua)冷(leng)(leng)卻(que)(que)(que)(que)煙(yan)道(dao)6的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)汽(qi)口(kou)(kou)(kou)(kou)(kou)(kou)通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)(guo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)11的(de)(de)(de)(de)(de)(de)(de)(de)上(shang)升管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，形(xing)(xing)成(cheng)閉式強制循(xun)環(huan)(huan)回路，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)11通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)(guo)第(di)(di)(di)(di)五(wu)下(xia)降管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)112與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)余(yu)熱(re)(re)鍋(guo)(guo)(guo)(guo)爐(lu)8中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)發(fa)器(qi)(qi)81的(de)(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)(jin)(jin)(jin)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)(kou)(kou)(kou)(kou)(kou)相連(lian)(lian)(lian)(lian)(lian)，所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)發(fa)器(qi)(qi)81的(de)(de)(de)(de)(de)(de)(de)(de)出(chu)(chu)(chu)汽(qi)口(kou)(kou)(kou)(kou)(kou)(kou)與(yu)(yu)(yu)(yu)所(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)(suo)述(shu)(shu)(shu)(shu)(shu)(shu)(shu)(shu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)鍋(guo)(guo)(guo)(guo)筒(tong)(tong)(tong)11的(de)(de)(de)(de)(de)(de)(de)(de)上(shang)升管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)口(kou)(kou)(kou)(kou)(kou)(kou)連(lian)(lian)(lian)(lian)(lian)通(tong)(tong)(tong)(tong)(tong)(tong)，形(xing)(xing)成(cheng)一(yi)個(ge)自然循(xun)環(huan)(huan)回路。

優選地(di)，所(suo)述(shu)(shu)高壓鍋筒(tong)的(de)(de)(de)出(chu)(chu)汽(qi)(qi)口(kou)(kou)與(yu)(yu)(yu)第(di)(di)一蓄(xu)熱(re)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)進汽(qi)(qi)口(kou)(kou)相(xiang)(xiang)連(lian)，所(suo)述(shu)(shu)中(zhong)壓鍋筒(tong)的(de)(de)(de)出(chu)(chu)汽(qi)(qi)口(kou)(kou)與(yu)(yu)(yu)第(di)(di)二(er)(er)蓄(xu)熱(re)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)進汽(qi)(qi)口(kou)(kou)相(xiang)(xiang)連(lian)；所(suo)述(shu)(shu)第(di)(di)一蓄(xu)熱(re)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)出(chu)(chu)汽(qi)(qi)口(kou)(kou)與(yu)(yu)(yu)過(guo)(guo)(guo)熱(re)煙道中(zhong)的(de)(de)(de)第(di)(di)一過(guo)(guo)(guo)熱(re)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)進汽(qi)(qi)口(kou)(kou)相(xiang)(xiang)連(lian)，所(suo)述(shu)(shu)第(di)(di)二(er)(er)蓄(xu)熱(re)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)出(chu)(chu)汽(qi)(qi)口(kou)(kou)與(yu)(yu)(yu)過(guo)(guo)(guo)熱(re)煙道中(zhong)的(de)(de)(de)第(di)(di)二(er)(er)過(guo)(guo)(guo)熱(re)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)進汽(qi)(qi)口(kou)(kou)相(xiang)(xiang)連(lian)；所(suo)述(shu)(shu)第(di)(di)一過(guo)(guo)(guo)熱(re)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)出(chu)(chu)汽(qi)(qi)口(kou)(kou)與(yu)(yu)(yu)所(suo)述(shu)(shu)汽(qi)(qi)輪機的(de)(de)(de)主蒸汽(qi)(qi)進口(kou)(kou)相(xiang)(xiang)連(lian)，所(suo)述(shu)(shu)第(di)(di)二(er)(er)過(guo)(guo)(guo)熱(re)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)出(chu)(chu)汽(qi)(qi)口(kou)(kou)與(yu)(yu)(yu)所(suo)述(shu)(shu)汽(qi)(qi)輪機的(de)(de)(de)補汽(qi)(qi)進口(kou)(kou)相(xiang)(xiang)連(lian)。

優(you)選地，所述(shu)低壓鍋筒(tong)的上(shang)方還安裝(zhuang)有(you)除氧器，低壓鍋筒(tong)兼作除氧水箱(xiang)。

優選地，在(zai)余(yu)(yu)熱鍋爐的(de)尾部設置低(di)壓(ya)(ya)(ya)蒸發(fa)器(qi)85，所述(shu)低(di)壓(ya)(ya)(ya)鍋筒9通(tong)(tong)過第二下降(jiang)管94與所述(shu)余(yu)(yu)熱鍋爐8中的(de)低(di)壓(ya)(ya)(ya)蒸發(fa)器(qi)85的(de)進(jin)水口連通(tong)(tong)，所述(shu)低(di)壓(ya)(ya)(ya)蒸發(fa)器(qi)85的(de)出汽口與所述(shu)低(di)壓(ya)(ya)(ya)鍋筒9的(de)上升管口連通(tong)(tong)。

優選地，在余熱鍋爐中，在所述低壓蒸(zheng)發器(qi)的煙(yan)氣側下游還設置有凝(ning)結水(shui)預(yu)熱器(qi)，用來(lai)對汽(qi)輪機來(lai)的凝(ning)結水(shui)進行預(yu)熱。

優(you)選地，第三汽(qi)化(hua)冷(leng)卻煙(yan)道和(he)余(yu)熱(re)鍋(guo)爐之間(jian)設置(zhi)有對(dui)(dui)(dui)(dui)流(liu)煙(yan)道，所(suo)(suo)述(shu)對(dui)(dui)(dui)(dui)流(liu)煙(yan)道中(zhong)設置(zhi)有對(dui)(dui)(dui)(dui)流(liu)換熱(re)器(qi)，所(suo)(suo)述(shu)高壓(ya)(ya)循環泵(beng)的(de)出水(shui)管(guan)道上分出一個支路與(yu)所(suo)(suo)述(shu)對(dui)(dui)(dui)(dui)流(liu)煙(yan)道中(zhong)的(de)對(dui)(dui)(dui)(dui)流(liu)換熱(re)器(qi)的(de)進水(shui)口(kou)(kou)(kou)相連(lian)，所(suo)(suo)述(shu)對(dui)(dui)(dui)(dui)流(liu)煙(yan)道中(zhong)的(de)對(dui)(dui)(dui)(dui)流(liu)換熱(re)器(qi)的(de)出汽(qi)口(kou)(kou)(kou)通過管(guan)道與(yu)所(suo)(suo)述(shu)高壓(ya)(ya)鍋(guo)筒的(de)上升管(guan)口(kou)(kou)(kou)相連(lian)。

優選(xuan)地，所(suo)述汽(qi)輪機的(de)排汽(qi)管(guan)道與凝(ning)汽(qi)器(qi)、凝(ning)結(jie)(jie)水(shui)泵、余熱(re)鍋(guo)爐中(zhong)的(de)凝(ning)結(jie)(jie)水(shui)預熱(re)器(qi)、低壓鍋(guo)筒上方(fang)的(de)除氧器(qi)的(de)進(jin)水(shui)口(kou)沿凝(ning)結(jie)(jie)水(shui)流程依次(ci)連通。

附圖說明

通過結(jie)合下面附圖對其實施例進行描述，本發明的上述特征和技術(shu)優點將會變得更加清楚(chu)和容易理(li)解。

圖1是表示本(ben)發(fa)明(ming)實施例(li)的(de)基于多(duo)壓模式的(de)電爐(lu)煙(yan)氣余熱優化(hua)利用系統(tong)的(de)示意圖。

其中(zhong)(zhong)(zhong)(zhong)，電爐1、水(shui)冷(leng)彎頭2、第(di)(di)(di)(di)(di)(di)一(yi)(yi)汽(qi)(qi)(qi)化冷(leng)卻(que)煙(yan)道(dao)3、第(di)(di)(di)(di)(di)(di)二汽(qi)(qi)(qi)化冷(leng)卻(que)煙(yan)道(dao)4、燃燒沉降(jiang)室(shi)5、第(di)(di)(di)(di)(di)(di)三汽(qi)(qi)(qi)化冷(leng)卻(que)煙(yan)道(dao)6、對流煙(yan)道(dao)7、余熱鍋爐8(內含(han)高(gao)壓(ya)(ya)(ya)(ya)蒸(zheng)發(fa)器(qi)(qi)(qi)81、高(gao)壓(ya)(ya)(ya)(ya)省煤器(qi)(qi)(qi)82、中(zhong)(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)蒸(zheng)發(fa)器(qi)(qi)(qi)83、中(zhong)(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)省煤器(qi)(qi)(qi)84、低(di)(di)壓(ya)(ya)(ya)(ya)蒸(zheng)發(fa)器(qi)(qi)(qi)85、凝(ning)結水(shui)預(yu)熱器(qi)(qi)(qi)86)、低(di)(di)壓(ya)(ya)(ya)(ya)鍋筒(tong)9、中(zhong)(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)鍋筒(tong)10、高(gao)壓(ya)(ya)(ya)(ya)鍋筒(tong)11、低(di)(di)壓(ya)(ya)(ya)(ya)循環泵12、中(zhong)(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)給(gei)水(shui)泵13、高(gao)壓(ya)(ya)(ya)(ya)給(gei)水(shui)泵14、中(zhong)(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(ya)循環泵15、高(gao)壓(ya)(ya)(ya)(ya)循環泵16、第(di)(di)(di)(di)(di)(di)一(yi)(yi)蓄(xu)熱器(qi)(qi)(qi)17、第(di)(di)(di)(di)(di)(di)二蓄(xu)熱器(qi)(qi)(qi)18、過熱煙(yan)道(dao)19、第(di)(di)(di)(di)(di)(di)一(yi)(yi)過熱器(qi)(qi)(qi)20、第(di)(di)(di)(di)(di)(di)二過熱器(qi)(qi)(qi)21、汽(qi)(qi)(qi)輪機22、凝(ning)汽(qi)(qi)(qi)器(qi)(qi)(qi)23、凝(ning)結水(shui)泵24、發(fa)電機25、第(di)(di)(di)(di)(di)(di)一(yi)(yi)下降(jiang)管(guan)(guan)91、第(di)(di)(di)(di)(di)(di)二出水(shui)管(guan)(guan)92、第(di)(di)(di)(di)(di)(di)一(yi)(yi)出水(shui)管(guan)(guan)93、第(di)(di)(di)(di)(di)(di)二下降(jiang)管(guan)(guan)94、第(di)(di)(di)(di)(di)(di)三下降(jiang)管(guan)(guan)101、管(guan)(guan)路(lu)102、管(guan)(guan)路(lu)103、第(di)(di)(di)(di)(di)(di)四(si)下降(jiang)管(guan)(guan)111、第(di)(di)(di)(di)(di)(di)五(wu)下降(jiang)管(guan)(guan)112、管(guan)(guan)路(lu)113、管(guan)(guan)路(lu)114、管(guan)(guan)路(lu)115、管(guan)(guan)路(lu)116、管(guan)(guan)路(lu)117、管(guan)(guan)路(lu)118。

具體實施方式

下面將參考附(fu)圖(tu)(tu)來描述本發明(ming)所述的(de)(de)基于多壓(ya)(ya)(ya)模式的(de)(de)電(dian)爐(lu)煙氣余熱優化利(li)用系統(tong)(tong)的(de)(de)實施例。本領域(yu)的(de)(de)普通技(ji)術人員可(ke)以(yi)認(ren)識到(dao)，在(zai)不(bu)偏離本發明(ming)的(de)(de)精神和(he)范圍的(de)(de)情況下，可(ke)以(yi)用各(ge)種不(bu)同的(de)(de)方式或(huo)其(qi)組合對所描述的(de)(de)實施例進(jin)行修(xiu)正。因此，附(fu)圖(tu)(tu)和(he)描述在(zai)本質上是說明(ming)性的(de)(de)，而不(bu)是用于限制權利(li)要(yao)求的(de)(de)保(bao)護范圍。此外，在(zai)本說明(ming)書中(zhong)(zhong)(zhong)，附(fu)圖(tu)(tu)未按比例畫(hua)出，并且(qie)相(xiang)同的(de)(de)附(fu)圖(tu)(tu)標記表示(shi)相(xiang)同的(de)(de)部分(fen)。需要(yao)說明(ming)的(de)(de)是，本發明(ming)所述高(gao)壓(ya)(ya)(ya)、中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)、低(di)壓(ya)(ya)(ya)是為了區(qu)分(fen)汽水(shui)系統(tong)(tong)的(de)(de)壓(ya)(ya)(ya)力(li)等級(ji)而進(jin)行的(de)(de)區(qu)分(fen)命名(如：高(gao)壓(ya)(ya)(ya)蒸(zheng)汽、中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)蒸(zheng)汽、低(di)壓(ya)(ya)(ya)蒸(zheng)汽的(de)(de)壓(ya)(ya)(ya)力(li)分(fen)別設計為3.83MPa、1.6MPa、0.5MPa)，并非絕對高(gao)壓(ya)(ya)(ya)(如9.81MPa)、絕對中(zhong)(zhong)(zhong)壓(ya)(ya)(ya)(如4.9MPa)、絕對低(di)壓(ya)(ya)(ya)(如0.8MPa)，并且(qie)，以(yi)下汽水(shui)流(liu)動(dong)方向(xiang)均按圖(tu)(tu)中(zhong)(zhong)(zhong)箭頭所示(shi)方向(xiang)流(liu)動(dong)。

本(ben)發(fa)明(ming)提供一(yi)(yi)(yi)種基于(yu)多壓(ya)(ya)(ya)模式的(de)(de)電爐(lu)煙(yan)(yan)(yan)(yan)氣(qi)余熱優化(hua)利(li)用(yong)系統(tong)(tong)(tong)，包(bao)括沿煙(yan)(yan)(yan)(yan)氣(qi)流動方(fang)(fang)向(xiang)依次連通(tong)的(de)(de)第(di)(di)(di)一(yi)(yi)(yi)汽(qi)(qi)化(hua)冷(leng)(leng)卻(que)(que)煙(yan)(yan)(yan)(yan)道(dao)(dao)3、第(di)(di)(di)二汽(qi)(qi)化(hua)冷(leng)(leng)卻(que)(que)煙(yan)(yan)(yan)(yan)道(dao)(dao)4、燃(ran)燒沉降室5、第(di)(di)(di)三汽(qi)(qi)化(hua)冷(leng)(leng)卻(que)(que)煙(yan)(yan)(yan)(yan)道(dao)(dao)6和余熱鍋爐(lu)8，其中(zhong)，第(di)(di)(di)一(yi)(yi)(yi)汽(qi)(qi)化(hua)冷(leng)(leng)卻(que)(que)煙(yan)(yan)(yan)(yan)道(dao)(dao)3的(de)(de)煙(yan)(yan)(yan)(yan)氣(qi)入口和電爐(lu)1上方(fang)(fang)的(de)(de)水(shui)(shui)(shui)(shui)冷(leng)(leng)彎頭2的(de)(de)煙(yan)(yan)(yan)(yan)氣(qi)出口連通(tong)。煙(yan)(yan)(yan)(yan)氣(qi)沿圖1中(zhong)箭頭A方(fang)(fang)向(xiang)流通(tong)動。余熱鍋爐(lu)8中(zhong)的(de)(de)高壓(ya)(ya)(ya)蒸發(fa)器(qi)81、高壓(ya)(ya)(ya)省(sheng)煤器(qi)82、中(zhong)壓(ya)(ya)(ya)蒸發(fa)器(qi)83、中(zhong)壓(ya)(ya)(ya)省(sheng)煤器(qi)84沿著煙(yan)(yan)(yan)(yan)氣(qi)流動方(fang)(fang)向(xiang)順次布(bu)置。煙(yan)(yan)(yan)(yan)氣(qi)余熱利(li)用(yong)系統(tong)(tong)(tong)又根據工作壓(ya)(ya)(ya)力(li)不同分成低(di)壓(ya)(ya)(ya)汽(qi)(qi)水(shui)(shui)(shui)(shui)系統(tong)(tong)(tong)、中(zhong)壓(ya)(ya)(ya)汽(qi)(qi)水(shui)(shui)(shui)(shui)系統(tong)(tong)(tong)、高壓(ya)(ya)(ya)汽(qi)(qi)水(shui)(shui)(shui)(shui)系統(tong)(tong)(tong)。其中(zhong)，為保證處于(yu)高溫端(duan)的(de)(de)第(di)(di)(di)一(yi)(yi)(yi)汽(qi)(qi)化(hua)冷(leng)(leng)卻(que)(que)煙(yan)(yan)(yan)(yan)道(dao)(dao)3的(de)(de)快(kuai)速冷(leng)(leng)卻(que)(que)，并考慮到燃(ran)燒沉降室5的(de)(de)爐(lu)門51的(de)(de)活動性，第(di)(di)(di)一(yi)(yi)(yi)汽(qi)(qi)化(hua)冷(leng)(leng)卻(que)(que)煙(yan)(yan)(yan)(yan)道(dao)(dao)3和燃(ran)燒沉降室5的(de)(de)爐(lu)門51冷(leng)(leng)卻(que)(que)采用(yong)低(di)壓(ya)(ya)(ya)汽(qi)(qi)水(shui)(shui)(shui)(shui)系統(tong)(tong)(tong)，其給水(shui)(shui)(shui)(shui)由低(di)壓(ya)(ya)(ya)鍋筒9提供，從(cong)而(er)產生低(di)壓(ya)(ya)(ya)蒸汽(qi)(qi)。所述低(di)壓(ya)(ya)(ya)鍋筒9還設置有除(chu)氧(yang)器(qi)，除(chu)氧(yang)器(qi)安裝于(yu)低(di)壓(ya)(ya)(ya)鍋筒9上方(fang)(fang)，這樣低(di)壓(ya)(ya)(ya)鍋筒9可(ke)以兼作除(chu)氧(yang)水(shui)(shui)(shui)(shui)箱。

而第(di)二(er)汽(qi)(qi)(qi)化冷卻煙(yan)(yan)(yan)道(dao)(dao)(dao)4、燃燒(shao)沉(chen)降室5的(de)爐(lu)(lu)(lu)蓋52、余(yu)(yu)熱(re)(re)(re)(re)(re)鍋(guo)(guo)爐(lu)(lu)(lu)8的(de)中壓(ya)段(duan)采(cai)用中壓(ya)汽(qi)(qi)(qi)水(shui)系(xi)統，其給水(shui)由(you)(you)中壓(ya)鍋(guo)(guo)筒(tong)(tong)(tong)10來供(gong)應，從而產(chan)生中壓(ya)蒸(zheng)汽(qi)(qi)(qi)。第(di)三汽(qi)(qi)(qi)化冷卻煙(yan)(yan)(yan)道(dao)(dao)(dao)6、余(yu)(yu)熱(re)(re)(re)(re)(re)鍋(guo)(guo)爐(lu)(lu)(lu)8的(de)高壓(ya)段(duan)則(ze)采(cai)用高壓(ya)汽(qi)(qi)(qi)水(shui)系(xi)統，其給水(shui)由(you)(you)高壓(ya)鍋(guo)(guo)筒(tong)(tong)(tong)供(gong)應，從而產(chan)生高壓(ya)蒸(zheng)汽(qi)(qi)(qi)。而經過(guo)余(yu)(yu)熱(re)(re)(re)(re)(re)鍋(guo)(guo)爐(lu)(lu)(lu)處理的(de)煙(yan)(yan)(yan)氣(qi)則(ze)沿(yan)箭(jian)頭B方向進(jin)(jin)入(ru)下游的(de)除塵設施。高壓(ya)鍋(guo)(guo)筒(tong)(tong)(tong)11、中壓(ya)鍋(guo)(guo)筒(tong)(tong)(tong)10出(chu)(chu)(chu)(chu)口(kou)(kou)(kou)(kou)的(de)蒸(zheng)汽(qi)(qi)(qi)分(fen)別經過(guo)蓄(xu)(xu)熱(re)(re)(re)(re)(re)器、過(guo)熱(re)(re)(re)(re)(re)器處理后與(yu)(yu)汽(qi)(qi)(qi)輪機(ji)(ji)(ji)22配合完(wan)成(cheng)余(yu)(yu)熱(re)(re)(re)(re)(re)利用。具體地說，高壓(ya)鍋(guo)(guo)筒(tong)(tong)(tong)11的(de)出(chu)(chu)(chu)(chu)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)與(yu)(yu)第(di)一(yi)(yi)蓄(xu)(xu)熱(re)(re)(re)(re)(re)器17的(de)進(jin)(jin)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)相連(lian)(lian)(lian)，中壓(ya)鍋(guo)(guo)筒(tong)(tong)(tong)10的(de)出(chu)(chu)(chu)(chu)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)與(yu)(yu)第(di)二(er)蓄(xu)(xu)熱(re)(re)(re)(re)(re)器18的(de)進(jin)(jin)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)相連(lian)(lian)(lian)。第(di)一(yi)(yi)蓄(xu)(xu)熱(re)(re)(re)(re)(re)器17的(de)出(chu)(chu)(chu)(chu)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)與(yu)(yu)過(guo)熱(re)(re)(re)(re)(re)煙(yan)(yan)(yan)道(dao)(dao)(dao)19中的(de)第(di)一(yi)(yi)過(guo)熱(re)(re)(re)(re)(re)器20的(de)進(jin)(jin)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)相連(lian)(lian)(lian)，第(di)二(er)蓄(xu)(xu)熱(re)(re)(re)(re)(re)器18的(de)出(chu)(chu)(chu)(chu)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)與(yu)(yu)過(guo)熱(re)(re)(re)(re)(re)煙(yan)(yan)(yan)道(dao)(dao)(dao)19中的(de)第(di)二(er)過(guo)熱(re)(re)(re)(re)(re)器21的(de)進(jin)(jin)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)相連(lian)(lian)(lian)。過(guo)熱(re)(re)(re)(re)(re)煙(yan)(yan)(yan)道(dao)(dao)(dao)19可(ke)以(yi)是單(dan)獨設置的(de)燃燒(shao)爐(lu)(lu)(lu)煙(yan)(yan)(yan)道(dao)(dao)(dao)，也(ye)可(ke)以(yi)是借用或共用鋼廠其他(ta)(ta)冶(ye)煉工序上(shang)的(de)高溫煙(yan)(yan)(yan)道(dao)(dao)(dao)，如加熱(re)(re)(re)(re)(re)爐(lu)(lu)(lu)尾部(bu)煙(yan)(yan)(yan)道(dao)(dao)(dao)，環冷機(ji)(ji)(ji)余(yu)(yu)熱(re)(re)(re)(re)(re)鍋(guo)(guo)爐(lu)(lu)(lu)煙(yan)(yan)(yan)道(dao)(dao)(dao)等。高溫煙(yan)(yan)(yan)氣(qi)沿(yan)箭(jian)頭C方向進(jin)(jin)入(ru)過(guo)熱(re)(re)(re)(re)(re)煙(yan)(yan)(yan)道(dao)(dao)(dao)19內，汽(qi)(qi)(qi)輪機(ji)(ji)(ji)22采(cai)用補汽(qi)(qi)(qi)凝汽(qi)(qi)(qi)式(shi)汽(qi)(qi)(qi)輪機(ji)(ji)(ji)，第(di)一(yi)(yi)過(guo)熱(re)(re)(re)(re)(re)器20的(de)出(chu)(chu)(chu)(chu)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)與(yu)(yu)汽(qi)(qi)(qi)輪機(ji)(ji)(ji)22的(de)主蒸(zheng)汽(qi)(qi)(qi)進(jin)(jin)口(kou)(kou)(kou)(kou)相連(lian)(lian)(lian)，第(di)二(er)過(guo)熱(re)(re)(re)(re)(re)器20的(de)出(chu)(chu)(chu)(chu)汽(qi)(qi)(qi)口(kou)(kou)(kou)(kou)與(yu)(yu)汽(qi)(qi)(qi)輪機(ji)(ji)(ji)22的(de)補汽(qi)(qi)(qi)進(jin)(jin)口(kou)(kou)(kou)(kou)相連(lian)(lian)(lian)。汽(qi)(qi)(qi)輪機(ji)(ji)(ji)22用于(yu)驅動(dong)發電機(ji)(ji)(ji)25發電(當然(ran)，也(ye)可(ke)用于(yu)拖動(dong)其他(ta)(ta)旋(xuan)轉(zhuan)機(ji)(ji)(ji)械如風機(ji)(ji)(ji)或水(shui)泵等做功)。以(yi)上(shang)高壓(ya)鍋(guo)(guo)筒(tong)(tong)(tong)、中壓(ya)鍋(guo)(guo)筒(tong)(tong)(tong)、低壓(ya)鍋(guo)(guo)筒(tong)(tong)(tong)中的(de)鍋(guo)(guo)筒(tong)(tong)(tong)亦稱(cheng)汽(qi)(qi)(qi)包，是余(yu)(yu)熱(re)(re)(re)(re)(re)鍋(guo)(guo)爐(lu)(lu)(lu)中最重要的(de)受壓(ya)元件(jian)。

下面詳細(xi)說明該多(duo)壓(ya)(ya)(ya)模式的(de)(de)(de)電爐(lu)煙(yan)(yan)(yan)(yan)氣(qi)(qi)余熱(re)利用(yong)系(xi)統(tong)(tong)(tong)的(de)(de)(de)高壓(ya)(ya)(ya)汽(qi)(qi)(qi)水(shui)(shui)系(xi)統(tong)(tong)(tong)、中(zhong)壓(ya)(ya)(ya)汽(qi)(qi)(qi)水(shui)(shui)系(xi)統(tong)(tong)(tong)、低(di)壓(ya)(ya)(ya)汽(qi)(qi)(qi)水(shui)(shui)系(xi)統(tong)(tong)(tong)。從(cong)電爐(lu)1上(shang)方(fang)的(de)(de)(de)水(shui)(shui)冷(leng)彎頭2的(de)(de)(de)煙(yan)(yan)(yan)(yan)氣(qi)(qi)出口(kou)沿煙(yan)(yan)(yan)(yan)氣(qi)(qi)流動方(fang)向依次連通(tong)有第(di)一(yi)汽(qi)(qi)(qi)化(hua)冷(leng)卻煙(yan)(yan)(yan)(yan)道(dao)(dao)3、第(di)二汽(qi)(qi)(qi)化(hua)冷(leng)卻煙(yan)(yan)(yan)(yan)道(dao)(dao)4、燃燒沉降(jiang)室5、第(di)三汽(qi)(qi)(qi)化(hua)冷(leng)卻煙(yan)(yan)(yan)(yan)道(dao)(dao)6和余熱(re)鍋(guo)爐(lu)8。余熱(re)鍋(guo)爐(lu)8中(zhong)又包(bao)括多(duo)個蒸發(fa)器(qi)(qi)(qi)和省(sheng)煤器(qi)(qi)(qi)，其中(zhong)，高壓(ya)(ya)(ya)蒸發(fa)器(qi)(qi)(qi)81、高壓(ya)(ya)(ya)省(sheng)煤器(qi)(qi)(qi)82、中(zhong)壓(ya)(ya)(ya)蒸發(fa)器(qi)(qi)(qi)83、中(zhong)壓(ya)(ya)(ya)省(sheng)煤器(qi)(qi)(qi)84、低(di)壓(ya)(ya)(ya)蒸發(fa)器(qi)(qi)(qi)85沿著煙(yan)(yan)(yan)(yan)氣(qi)(qi)流程順次流通(tong)。低(di)壓(ya)(ya)(ya)蒸發(fa)器(qi)(qi)(qi)85、第(di)一(yi)汽(qi)(qi)(qi)化(hua)冷(leng)卻煙(yan)(yan)(yan)(yan)道(dao)(dao)3和燃燒沉降(jiang)室5的(de)(de)(de)爐(lu)門(men)51的(de)(de)(de)冷(leng)卻裝置產生(sheng)的(de)(de)(de)低(di)壓(ya)(ya)(ya)蒸汽(qi)(qi)(qi)都送入低(di)壓(ya)(ya)(ya)鍋(guo)筒(tong)9內(nei)，一(yi)起作(zuo)為低(di)壓(ya)(ya)(ya)鍋(guo)筒(tong)上(shang)方(fang)除(chu)氧器(qi)(qi)(qi)的(de)(de)(de)除(chu)氧蒸汽(qi)(qi)(qi)。

低壓(ya)(ya)汽(qi)水系統(tong)包括低壓(ya)(ya)鍋(guo)筒(tong)(tong)9、低壓(ya)(ya)循環(huan)泵12，低壓(ya)(ya)鍋(guo)筒(tong)(tong)通過第(di)一下(xia)降管91與(yu)低壓(ya)(ya)循環(huan)泵12連(lian)(lian)接，低壓(ya)(ya)循環(huan)泵12的(de)(de)出(chu)水管路分支(zhi)為兩路，一路與(yu)第(di)一汽(qi)化(hua)冷(leng)卻(que)煙道(dao)3的(de)(de)進水口連(lian)(lian)通，另一路與(yu)燃(ran)燒沉降室(shi)5的(de)(de)爐門51的(de)(de)汽(qi)化(hua)冷(leng)卻(que)裝置(zhi)的(de)(de)進水口連(lian)(lian)通。第(di)一汽(qi)化(hua)冷(leng)卻(que)煙道(dao)3的(de)(de)出(chu)汽(qi)口、燃(ran)燒沉降室(shi)5的(de)(de)爐門51的(de)(de)汽(qi)化(hua)冷(leng)卻(que)裝置(zhi)的(de)(de)出(chu)汽(qi)口與(yu)低壓(ya)(ya)鍋(guo)筒(tong)(tong)9的(de)(de)上(shang)升(sheng)管口連(lian)(lian)通，并(bing)且(qie)低壓(ya)(ya)鍋(guo)筒(tong)(tong)9通過第(di)二下(xia)降管94與(yu)余熱鍋(guo)爐中(zhong)的(de)(de)低壓(ya)(ya)蒸發(fa)器的(de)(de)進水口連(lian)(lian)通，低壓(ya)(ya)蒸發(fa)器的(de)(de)出(chu)汽(qi)口與(yu)低壓(ya)(ya)鍋(guo)筒(tong)(tong)的(de)(de)上(shang)升(sheng)管口連(lian)(lian)通。

中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)汽水(shui)(shui)系(xi)統包括中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)給水(shui)(shui)泵(beng)13、中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)鍋(guo)筒(tong)10、中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)循環泵(beng)15，低壓(ya)(ya)(ya)(ya)(ya)鍋(guo)筒(tong)9通過(guo)第一出(chu)水(shui)(shui)管(guan)(guan)(guan)93與(yu)(yu)(yu)(yu)中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)給水(shui)(shui)泵(beng)13連接，中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)給水(shui)(shui)泵(beng)13的(de)出(chu)水(shui)(shui)管(guan)(guan)(guan)路(lu)與(yu)(yu)(yu)(yu)余熱鍋(guo)爐8中(zhong)(zhong)的(de)中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)省煤(mei)器84的(de)進水(shui)(shui)口(kou)連通，中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)省煤(mei)器84的(de)出(chu)水(shui)(shui)口(kou)通過(guo)管(guan)(guan)(guan)路(lu)102與(yu)(yu)(yu)(yu)中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)鍋(guo)筒(tong)10的(de)進水(shui)(shui)口(kou)連通，并(bing)且中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)鍋(guo)筒(tong)10通過(guo)第三下降管(guan)(guan)(guan)101與(yu)(yu)(yu)(yu)中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)蒸發器83的(de)進水(shui)(shui)口(kou)相連，中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)蒸發器83的(de)出(chu)汽口(kou)通過(guo)管(guan)(guan)(guan)路(lu)103與(yu)(yu)(yu)(yu)中(zhong)(zhong)壓(ya)(ya)(ya)(ya)(ya)鍋(guo)筒(tong)10的(de)上升管(guan)(guan)(guan)口(kou)連通，形成一個自然循環回路(lu)。

中壓(ya)(ya)鍋(guo)筒通(tong)(tong)過第六下降(jiang)管104與(yu)(yu)中壓(ya)(ya)循(xun)環泵(beng)15的(de)進(jin)水(shui)口(kou)相(xiang)連，中壓(ya)(ya)循(xun)環泵(beng)的(de)出水(shui)管道分為幾(ji)個支(zhi)路(lu)，分別與(yu)(yu)第二汽化冷(leng)卻煙(yan)道的(de)進(jin)水(shui)口(kou)和所述燃燒(shao)沉降(jiang)室的(de)爐蓋汽化冷(leng)卻裝(zhuang)置進(jin)水(shui)口(kou)連通(tong)(tong)，第二汽化冷(leng)卻煙(yan)道的(de)出汽口(kou)、燃燒(shao)沉降(jiang)室的(de)爐蓋汽化冷(leng)卻裝(zhuang)置出汽口(kou)通(tong)(tong)過管道106、107與(yu)(yu)中壓(ya)(ya)鍋(guo)筒的(de)上升(sheng)管口(kou)相(xiang)連，形(xing)成閉(bi)式強(qiang)制循(xun)環回路(lu)。

高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)汽(qi)水(shui)系統包(bao)括高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)給水(shui)泵(beng)14、高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)鍋(guo)筒(tong)(tong)(tong)11、高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)循(xun)環(huan)泵(beng)16，低壓(ya)(ya)(ya)(ya)鍋(guo)筒(tong)(tong)(tong)9通(tong)過(guo)(guo)(guo)第(di)(di)二(er)出(chu)(chu)水(shui)管92與(yu)高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)給水(shui)泵(beng)14連(lian)(lian)接(jie)，高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)給水(shui)泵(beng)14的(de)出(chu)(chu)水(shui)口(kou)(kou)(kou)與(yu)余(yu)(yu)熱(re)(re)鍋(guo)爐8中(zhong)的(de)高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)省煤(mei)(mei)器82的(de)進水(shui)口(kou)(kou)(kou)連(lian)(lian)通(tong)，高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)省煤(mei)(mei)器82的(de)出(chu)(chu)水(shui)口(kou)(kou)(kou)通(tong)過(guo)(guo)(guo)管路(lu)113與(yu)高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)鍋(guo)筒(tong)(tong)(tong)11的(de)進水(shui)口(kou)(kou)(kou)連(lian)(lian)通(tong)。高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)鍋(guo)筒(tong)(tong)(tong)11通(tong)過(guo)(guo)(guo)第(di)(di)四下(xia)降管111與(yu)高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)循(xun)環(huan)泵(beng)16連(lian)(lian)接(jie)，高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)循(xun)環(huan)泵(beng)16的(de)出(chu)(chu)口(kou)(kou)(kou)管道與(yu)第(di)(di)三(san)汽(qi)化(hua)冷(leng)(leng)卻(que)煙(yan)道6的(de)進水(shui)口(kou)(kou)(kou)連(lian)(lian)通(tong)，第(di)(di)三(san)汽(qi)化(hua)冷(leng)(leng)卻(que)煙(yan)道6的(de)出(chu)(chu)汽(qi)口(kou)(kou)(kou)通(tong)過(guo)(guo)(guo)管路(lu)115與(yu)高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)鍋(guo)筒(tong)(tong)(tong)11的(de)上(shang)升(sheng)(sheng)管口(kou)(kou)(kou)連(lian)(lian)通(tong)。高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)鍋(guo)筒(tong)(tong)(tong)11通(tong)過(guo)(guo)(guo)第(di)(di)五(wu)下(xia)降管112與(yu)余(yu)(yu)熱(re)(re)鍋(guo)爐8中(zhong)的(de)高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)蒸發器81的(de)進水(shui)口(kou)(kou)(kou)相連(lian)(lian)，高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)蒸發器81的(de)出(chu)(chu)汽(qi)口(kou)(kou)(kou)通(tong)過(guo)(guo)(guo)管路(lu)118與(yu)高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)鍋(guo)筒(tong)(tong)(tong)11的(de)上(shang)升(sheng)(sheng)管口(kou)(kou)(kou)連(lian)(lian)通(tong)，形成一(yi)個自然(ran)循(xun)環(huan)回(hui)路(lu)，高(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)鍋(guo)筒(tong)(tong)(tong)11、中(zhong)壓(ya)(ya)(ya)(ya)鍋(guo)筒(tong)(tong)(tong)10的(de)出(chu)(chu)汽(qi)口(kou)(kou)(kou)結(jie)合蓄熱(re)(re)器、過(guo)(guo)(guo)熱(re)(re)器配合補汽(qi)凝汽(qi)式(shi)汽(qi)輪機21完成余(yu)(yu)熱(re)(re)利用。

本發明(ming)的煙(yan)氣(qi)(qi)余熱(re)利(li)用系(xi)統(tong)具有高壓、中(zhong)壓、低壓系(xi)統(tong)，不僅通過大幅(fu)降低電爐余熱(re)利(li)用系(xi)統(tong)的排煙(yan)溫(wen)度進(jin)而從“量”上回收(shou)電爐煙(yan)氣(qi)(qi)余熱(re)，而且按照能量品位高低設計(ji)換(huan)熱(re)系(xi)統(tong)進(jin)而從“質”上回收(shou)電爐煙(yan)氣(qi)(qi)余熱(re)，實現了能源梯級優化利(li)用。

此外，余(yu)熱(re)鍋爐(lu)還(huan)設置有凝結(jie)水(shui)預(yu)熱(re)器(qi)86，該(gai)凝結(jie)水(shui)預(yu)熱(re)器(qi)86設置在余(yu)熱(re)鍋爐(lu)8的(de)(de)低壓蒸(zheng)發(fa)器(qi)85的(de)(de)煙氣側下(xia)游(you)，經過(guo)省(sheng)煤(mei)器(qi)降溫后的(de)(de)煙氣余(yu)熱(re)用來對汽(qi)輪機21來的(de)(de)凝結(jie)水(shui)進行預(yu)熱(re)，不僅進一步吸收了(le)煙氣余(yu)熱(re)，提高余(yu)熱(re)回(hui)收系統(tong)的(de)(de)熱(re)經濟性，而(er)且還(huan)可(ke)降低進入下(xia)游(you)除塵設施的(de)(de)煙氣溫度。

此外(wai)，第三汽化冷卻煙(yan)(yan)道(dao)6和余熱(re)(re)(re)鍋(guo)爐8之間設(she)置(zhi)有(you)一級對(dui)流(liu)(liu)(liu)煙(yan)(yan)道(dao)7，對(dui)流(liu)(liu)(liu)煙(yan)(yan)道(dao)中(zhong)設(she)置(zhi)有(you)對(dui)流(liu)(liu)(liu)換(huan)熱(re)(re)(re)器，高(gao)壓(ya)循(xun)環泵(beng)16的(de)出(chu)水管(guan)道(dao)上分出(chu)一個(ge)支路與(yu)所述對(dui)流(liu)(liu)(liu)煙(yan)(yan)道(dao)7中(zhong)的(de)對(dui)流(liu)(liu)(liu)換(huan)熱(re)(re)(re)器的(de)進水口(kou)相(xiang)連(lian)，對(dui)流(liu)(liu)(liu)煙(yan)(yan)道(dao)7中(zhong)的(de)對(dui)流(liu)(liu)(liu)換(huan)熱(re)(re)(re)器的(de)出(chu)汽口(kou)通過管(guan)路114與(yu)高(gao)壓(ya)鍋(guo)筒11的(de)上升(sheng)管(guan)口(kou)相(xiang)連(lian)。

此外，第一汽化(hua)(hua)冷(leng)卻(que)煙(yan)道(dao)3、第二汽化(hua)(hua)冷(leng)卻(que)煙(yan)道(dao)4、第三汽化(hua)(hua)冷(leng)卻(que)煙(yan)道(dao)6都可以是單獨的一段汽化(hua)(hua)冷(leng)卻(que)煙(yan)道(dao)，或者是多段汽化(hua)(hua)冷(leng)卻(que)煙(yan)道(dao)的組(zu)合。

此(ci)外，第(di)(di)一(yi)(yi)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)3可以采(cai)用(yong)移(yi)動(dong)式(shi)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)，第(di)(di)二(er)(er)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)4和第(di)(di)三(san)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)6采(cai)用(yong)固定(ding)式(shi)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)，第(di)(di)一(yi)(yi)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)3的(de)(de)(de)煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)(qi)進(jin)口端(duan)(duan)(duan)與(yu)所(suo)述水(shui)冷(leng)(leng)(leng)彎頭(tou)2的(de)(de)(de)煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)(qi)出(chu)口端(duan)(duan)(duan)連(lian)(lian)通(tong)且有預(yu)設的(de)(de)(de)間隙(xi)，該(gai)間隙(xi)可以調(diao)(diao)整來(lai)控(kong)制吸入的(de)(de)(de)空氣(qi)(qi)(qi)量。第(di)(di)一(yi)(yi)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)3的(de)(de)(de)煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)(qi)出(chu)口端(duan)(duan)(duan)與(yu)所(suo)述第(di)(di)二(er)(er)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)4的(de)(de)(de)煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)(qi)進(jin)口端(duan)(duan)(duan)連(lian)(lian)通(tong)；所(suo)述第(di)(di)一(yi)(yi)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)3和牽引裝置(zhi)(未(wei)示出(chu))連(lian)(lian)接，該(gai)牽引裝置(zhi)可驅動(dong)第(di)(di)一(yi)(yi)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)3進(jin)行(xing)水(shui)平移(yi)動(dong)，而第(di)(di)一(yi)(yi)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)3的(de)(de)(de)煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)(qi)出(chu)口端(duan)(duan)(duan)則貼在所(suo)述第(di)(di)二(er)(er)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)4的(de)(de)(de)煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)(qi)進(jin)口端(duan)(duan)(duan)上水(shui)平移(yi)動(dong)，從而控(kong)制第(di)(di)一(yi)(yi)汽(qi)(qi)化(hua)(hua)冷(leng)(leng)(leng)卻(que)(que)(que)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)3與(yu)水(shui)冷(leng)(leng)(leng)彎頭(tou)2之間的(de)(de)(de)間隙(xi)，進(jin)而實現爐氣(qi)(qi)(qi)燃燒(shao)空氣(qi)(qi)(qi)量的(de)(de)(de)調(diao)(diao)節。

此外，凝汽(qi)器23設置有補水(shui)口，以補充(chong)余熱(re)利用系統損失掉(diao)的汽(qi)水(shui)。

此外，汽輪機22的排汽管道和所(suo)述凝(ning)(ning)(ning)汽器23相(xiang)連，凝(ning)(ning)(ning)汽器23與凝(ning)(ning)(ning)結(jie)水泵(beng)24、余(yu)熱鍋爐8中的凝(ning)(ning)(ning)結(jie)水預熱器86、低壓(ya)鍋筒9的進水口沿凝(ning)(ning)(ning)結(jie)水流程依次相(xiang)連。不僅進一步(bu)吸收(shou)了煙(yan)氣(qi)余(yu)熱，提高余(yu)熱回收(shou)系(xi)統的熱經濟性，而且還(huan)可降(jiang)低進入下游(you)除(chu)塵(chen)設施的煙(yan)氣(qi)溫度，有利于除(chu)塵(chen)設施的安(an)全運行(xing)，并改(gai)善其運行(xing)環(huan)境，延(yan)長其使用壽(shou)命。

本發明的(de)有益(yi)效果(guo)在于：

(1)對電(dian)爐的高溫(wen)(wen)煙氣(qi)(qi)余(yu)(yu)熱(re)進(jin)行充分回收(shou)利用(yong)，整體方(fang)案布局(ju)合理，首(shou)先通過(guo)(guo)汽化(hua)冷(leng)卻的方(fang)式來回收(shou)電(dian)爐的高溫(wen)(wen)煙氣(qi)(qi)廢熱(re)，然后通過(guo)(guo)對流煙道(dao)來進(jin)一步吸收(shou)煙氣(qi)(qi)余(yu)(yu)熱(re)并降低煙氣(qi)(qi)溫(wen)(wen)度(du)，以改(gai)善(shan)余(yu)(yu)熱(re)鍋(guo)爐運行條件(jian)，最后通過(guo)(guo)余(yu)(yu)熱(re)鍋(guo)爐的方(fang)式來回收(shou)電(dian)爐的煙氣(qi)(qi)廢熱(re)，將煙氣(qi)(qi)溫(wen)(wen)度(du)降低到一定溫(wen)(wen)度(du)，不僅回收(shou)了余(yu)(yu)熱(re)，還可以為下游的除塵設施(shi)的安(an)全運行提供條件(jian)。

(2)在(zai)整體布局時兼(jian)顧系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)的(de)(de)(de)安全性(xing)和(he)熱(re)(re)(re)(re)經(jing)(jing)濟性(xing)，將汽(qi)(qi)(qi)(qi)水(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)分為(wei)(wei)三壓(ya)(ya)(ya)(ya)(ya)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)，為(wei)(wei)保證(zheng)處于高溫端的(de)(de)(de)第(di)一(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)卻(que)(que)煙(yan)(yan)道(dao)的(de)(de)(de)快速冷(leng)卻(que)(que)，并考慮到(dao)燃(ran)燒沉降(jiang)室(shi)(shi)爐(lu)(lu)門(men)的(de)(de)(de)活動性(xing)，汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)卻(que)(que)煙(yan)(yan)道(dao)I和(he)燃(ran)燒沉降(jiang)室(shi)(shi)爐(lu)(lu)門(men)冷(leng)卻(que)(que)采(cai)用(yong)(yong)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)汽(qi)(qi)(qi)(qi)水(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)，其給(gei)水(shui)由(you)壓(ya)(ya)(ya)(ya)(ya)力相(xiang)對(dui)較低(di)(di)的(de)(de)(de)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)鍋筒(tong)(tong)的(de)(de)(de)下(xia)水(shui)來(lai)供應，產生(sheng)(sheng)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)；第(di)二汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)卻(que)(que)煙(yan)(yan)道(dao)、燃(ran)燒沉降(jiang)室(shi)(shi)以及余(yu)(yu)(yu)熱(re)(re)(re)(re)鍋爐(lu)(lu)的(de)(de)(de)中(zhong)壓(ya)(ya)(ya)(ya)(ya)段(duan)采(cai)用(yong)(yong)中(zhong)壓(ya)(ya)(ya)(ya)(ya)汽(qi)(qi)(qi)(qi)水(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)，給(gei)水(shui)由(you)壓(ya)(ya)(ya)(ya)(ya)力中(zhong)等的(de)(de)(de)中(zhong)壓(ya)(ya)(ya)(ya)(ya)鍋筒(tong)(tong)的(de)(de)(de)下(xia)水(shui)來(lai)供應，產生(sheng)(sheng)中(zhong)壓(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)；而(er)第(di)三汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)卻(que)(que)煙(yan)(yan)道(dao)、對(dui)流煙(yan)(yan)道(dao)、余(yu)(yu)(yu)熱(re)(re)(re)(re)鍋爐(lu)(lu)的(de)(de)(de)高壓(ya)(ya)(ya)(ya)(ya)段(duan)則采(cai)用(yong)(yong)高壓(ya)(ya)(ya)(ya)(ya)汽(qi)(qi)(qi)(qi)水(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)，給(gei)水(shui)由(you)壓(ya)(ya)(ya)(ya)(ya)力相(xiang)對(dui)最高的(de)(de)(de)高壓(ya)(ya)(ya)(ya)(ya)鍋筒(tong)(tong)的(de)(de)(de)下(xia)水(shui)來(lai)供應，產生(sheng)(sheng)高壓(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)。此外，為(wei)(wei)進(jin)一(yi)步回收煙(yan)(yan)氣(qi)余(yu)(yu)(yu)熱(re)(re)(re)(re)，在(zai)余(yu)(yu)(yu)熱(re)(re)(re)(re)鍋爐(lu)(lu)的(de)(de)(de)尾部設置(zhi)一(yi)級低(di)(di)壓(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)發器，產生(sheng)(sheng)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)，并與(yu)第(di)一(yi)汽(qi)(qi)(qi)(qi)化(hua)(hua)冷(leng)卻(que)(que)煙(yan)(yan)道(dao)和(he)燃(ran)燒沉降(jiang)室(shi)(shi)爐(lu)(lu)門(men)產生(sheng)(sheng)的(de)(de)(de)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)一(yi)起作為(wei)(wei)除(chu)氧蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)。三壓(ya)(ya)(ya)(ya)(ya)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)的(de)(de)(de)設計，不僅通過大幅降(jiang)低(di)(di)電(dian)(dian)爐(lu)(lu)余(yu)(yu)(yu)熱(re)(re)(re)(re)回收裝置(zhi)的(de)(de)(de)排煙(yan)(yan)溫度進(jin)而(er)從(cong)(cong)“量(liang)”上回收電(dian)(dian)爐(lu)(lu)煙(yan)(yan)氣(qi)余(yu)(yu)(yu)熱(re)(re)(re)(re)，而(er)且按照能量(liang)品位高低(di)(di)設計換熱(re)(re)(re)(re)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)進(jin)而(er)從(cong)(cong)“質”上回收電(dian)(dian)爐(lu)(lu)煙(yan)(yan)氣(qi)余(yu)(yu)(yu)熱(re)(re)(re)(re)，實現了能源梯級優化(hua)(hua)利(li)用(yong)(yong)；此外，本發明整套余(yu)(yu)(yu)熱(re)(re)(re)(re)利(li)用(yong)(yong)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)的(de)(de)(de)設計，以及各個(ge)設備(bei)之(zhi)間的(de)(de)(de)連接關(guan)系(xi)(xi)(xi)，均是(shi)綜合系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)的(de)(de)(de)安全性(xing)和(he)熱(re)(re)(re)(re)經(jing)(jing)濟性(xing)后的(de)(de)(de)最優化(hua)(hua)布局。

(3)對余(yu)(yu)(yu)熱(re)(re)(re)鍋(guo)(guo)爐內部的(de)(de)受(shou)(shou)熱(re)(re)(re)面進(jin)行(xing)(xing)優(you)化(hua)設(she)計，傳統(tong)的(de)(de)余(yu)(yu)(yu)熱(re)(re)(re)鍋(guo)(guo)爐一般(ban)將最后(hou)一級受(shou)(shou)熱(re)(re)(re)面設(she)置成省(sheng)煤(mei)器，而(er)本發明在余(yu)(yu)(yu)熱(re)(re)(re)鍋(guo)(guo)爐尾部增設(she)了一級凝結水預(yu)熱(re)(re)(re)器，經(jing)過省(sheng)煤(mei)器降溫后(hou)的(de)(de)煙(yan)氣余(yu)(yu)(yu)熱(re)(re)(re)用來(lai)對汽(qi)輪機來(lai)的(de)(de)凝結水進(jin)行(xing)(xing)預(yu)熱(re)(re)(re)，不僅進(jin)一步吸(xi)收了煙(yan)氣余(yu)(yu)(yu)熱(re)(re)(re)，提(ti)高余(yu)(yu)(yu)熱(re)(re)(re)回收系(xi)統(tong)的(de)(de)熱(re)(re)(re)經(jing)濟性，而(er)且還可降低進(jin)入(ru)下游(you)除塵設(she)施的(de)(de)煙(yan)氣溫度(du)，有利于除塵設(she)施的(de)(de)安全運(yun)行(xing)(xing)，并改善其運(yun)行(xing)(xing)環(huan)境，延長其使(shi)用壽(shou)命。

以上所述僅(jin)為本(ben)發(fa)(fa)明(ming)(ming)的(de)優選(xuan)實施例，并不用于(yu)限(xian)制(zhi)本(ben)發(fa)(fa)明(ming)(ming)，對于(yu)本(ben)領域的(de)技術人員來說，本(ben)發(fa)(fa)明(ming)(ming)可以有各(ge)種更(geng)改和變化。凡在(zai)本(ben)發(fa)(fa)明(ming)(ming)的(de)精神和原則之(zhi)(zhi)內，所作的(de)任何修改、等(deng)同替換、改進等(deng)，均應包含(han)在(zai)本(ben)發(fa)(fa)明(ming)(ming)的(de)保護范圍之(zhi)(zhi)內。