香港最准一肖中特公开选料1

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锅炉除氧的方法汇总

锅炉除氧的方法汇总

发布日期:2019-10-21 作者:大恺热科 点击:

为保证锅炉安全运行,对锅炉给水进行有效的除氧是非常重要的。在国家标准《工业锅炉水质》(GB1576—2001)中,对锅炉水质提出了严格要求,要求蒸发量大于2t/h的蒸汽锅炉和额定功率≥4.2MW的热水锅炉,都必须除氧。在锅炉房设置适用的除氧设施,除去锅炉给水中的溶解氧,是保护热力系统设备经济运行的必不可少的手段。

1.锅炉氧腐蚀简介

氧腐蚀是影响锅炉安全运行和使用寿命的关键问题之一。特别是随着热水锅炉的发展,腐蚀问题更为突出,引起人们极大的关注。溶解在水中的氧是造成锅炉腐蚀的重要因素。

试验证实,腐蚀速度与溶液中氧的浓度成正比,氧是很活泼的气体,它能跟绝大多数金属直接化合,当其与金属化合后,往往形成沉淀或稳定的化合物,这些氧化物不再与金属化合,起腐蚀作用的是水中的溶解氧。

防止锅炉氧腐蚀最有效的方法就是加强锅炉给水的除氧,使给水中的含氧量达到水质标准的要求。

2.除氧的原理与途径

根据气体溶解定律:任何气体在水中的溶解度与此气体在气水界面上的分压力和水温有关。根据氧的特性,水中除氧可从以下几个方面着手:

(1)使水加热,减小氧的溶解度,水中氧气就可以逸出;

(2)使水面上空的氧分子都排除,或转变成其他气体。既然水面上没有氧分子存在,氧的分压力就为零,水中氧的溶解度为零,水中氧气不断逸出;

香港最准一肖中特公开选料1(3)SHISHUIZHONGDERONGJIEYANGZAIJINRUGUOLUZHIQIANJIUZHUANBIANWEIYUJINSHUHUOQITAYAOJIDEHUAHEWUERXIAOHAOGANJING。

香港最准一肖中特公开选料1GUOLUJISHUICHANGYONGDECHUYANGFANGFAYOU:RELICHUYANG 、ZHENKONGCHUYANG、JIEXICHUYANG 、GANGXIEJIJIAYAOCHUYANG、HAIMIANTIECHANGWENGUOLVSHICHUYANGDENG。

3.GELEICHUYANGFANGSHIDEFENXI

3.1RELICHUYANG

香港最准一肖中特公开选料1RELICHUYANGYUANLISHIJIANGSHUIJIAREZHIXIANGYINGYALIXIADEBAOHEWENDU(YIBANDADAOFEIDIAN),ZHENGQIFENYALIJIEJINSHUIMIANSHANGDEQUANYALI,RONGJIEYUSHUIZHONGYANGDEFENYALIJIEJINYULING,SHIYANGXICHU,ZAIJIANGSHUIMIANSHANGCHANSHENGDEYANGQIPAICHU,CONGERBAOZHENGJISHUIHANYANGLIANGDADAOSHUIZHIBIAOZHUNDEYAOQIU。

RELICHUYANGYOUYIXIATEDIAN:

香港最准一肖中特公开选料1(1)BUJINNENGCHUO2,HAINENGCHUCO2JIQITAQITI;

(2)CHUYANGSHUIZHONGBUZENGJIAHANYANLIANG,YEBUZENGJIAQITAQITIDERONGJIELIANG;

RELICHUYANGANYALIDAXIAOKEFENWEIYALISHIHEDAQISHILIANGZHONG。GUOLUJISHUICHANGCAIYONGDAQISHIRELICHUYANGQI,CHUYANGQINEIBAOCHIBIDAQIYALISHAOGAODEYALI(YIBANWEI0.02~0.025MPaBIAOYALI,CIYALIXIABAOHEWENDUWEI104~105℃),YIBIANYUPAICHUYICHUDEQITI。ZAISHIJIYUNXINGZHONG,CHANGYINREFUHEPINFANBIANDONGJIGUANLICAOZUOSHUIPINGDENGYUANYIN,ERSHIGUOLUJISHUISHIJIDECHUYANGXIAOGUOSHOUJIAODAYINGXIANG。LINGWAI,RELICHUYANGHAIBIXUYOUZHENGQIGONGYING。

3.2ZHENKONGCHUYANG

香港最准一肖中特公开选料1ZHENKONGSHICHUYANGSHIZAIDIYUDAQIYALI(ZHENKONGDU600~700mmHg)XIAJINXINGCHUYANGDE,SHUYUDIWENCHUYANG。CHANGYONGDEZHENKONGCHUYANGXITONGYOUZHENGQIPENSHEHESHUIPENSHELIANGZHONG,YOUYUJISHUIWENDUYAOQIUDI,YONGRESHUIJIAREJIKE,YINCIKEYONGYURESHUIGUOLUXITONG。

香港最准一肖中特公开选料1ZHENKONGCHUYANGXIAOGUOHAOHUAIDEGUANJIANSHIBAOZHENGZHENKONGDU,YOUYUREFUHEDEBODONG,TONGSHIXITONGDEQIMIXINGNANYIBAOZHENG,GUZAIGONGREXITONGCHUYANGZHONGYINGYONGBUGUANGFAN。

3.3JIEXICHUYANG

香港最准一肖中特公开选料1JIEXICHUYANGSHIJIYUHENGLIDINGLV,YANGZAISHUIZHONGDERONGJIEDUYUSHUISUOJIECHUDEQITIZHONGDEYANGDEFENYALICHENGZHENGBI,ERQITIZHONGYANGDEFENYALIYOUYUQITIZHONGYANGDEHANLIANGCHENGZHENGBI,YINCIJIANGYAOCHUYANGDEJISHUIYUYITUOYANGDEQITIQIANGLIEHUNHE,ZERONGJIEYUSHUIZHONGDEYANGDALIANGKUOSANDAOQITIZHONG,CONGERDADAOCHUYANGDEMUDE。

JIEXICHUYANGYOUYIXIATEDIAN:

(1)BUXUJIARE,KECHANGWENXIACHUYANG,JIEYUENENGYUAN;

(2)GENJUZILIAOHESUAN,QICHUBUTOUZIYUEWEIRELICHUYANGDE2/3,ZHENKONGCHUYANGDE2/5。YUNXINGFEIYONGBIRELICHUYANG、ZHENKONGCHUYANG、YALIUSUANNACHUYANG,YANGHUAHAIYUANSHUZHIDOUDIDEDUO;

(3)CHUPENSHEQIBUZHIYAOQIUYIDINGGAODUWAI,QIYUJUNWEIDIWEIBUZHI,ZHANDIJIAOSHAO。

JIEXICHUYANGYECUNZAIYIXIEBULIYINSHU:

香港最准一肖中特公开选料1(1)ZHINENGCHUYANG,BUNENGCHUQITAQITI,CHUYANGHOUSHUIZHONGCO2YOUSUOZENGGAO,PHZHIJIANGDI0.2~0.3;

(2)YAOXIAOHAOYIDINGDEDIANLI;

香港最准一肖中特公开选料1(3)CHANPINZHILIANGJICUIHUATUOYANGJICHAYIHENDA,ZAOCHENGSHIYONGXIAOGUOBUYIZHI;

(4)XITONGDEQIMIXINGYAOQIUNANYIBAOZHENG。

JIEXICHUYANGJISHUYIZHIZAIBUDUANFAZHAN,ZUIJINDUITUOYANGZUOLEGAIJINHOU,YOUCHENGXINXINGJIEXICHUYANG,ZHEIZHONGFANGFASHUYUCHANGWENDIWEICHUYANG,DANSHEBEIZUIGAODIANYEYAODADAO6mZUOYOU,HAIYAOYOUJIAREQI、CHUYANGSHUIBENG、WENKONGQIDENG,XITONGJIAOWEIFUZA。

3.4HUAXUECHUYANG

3.4.1HUAXUEYAOJICHUYANG

HUAXUECHUYANGYESHIYIZHONGCHANGYONGDECHUYANGCUOSHI,CHANGYONGDECHUYANGFANYINGJIYOUYALIUSUANNA、LIANANDENG。

(1)YALIUSUANNACHUYANG

香港最准一肖中特公开选料1TOUJIAYALIUSUANNASHIZHONGXIAOGUOLUCHANGYONGDEYIZHONGCHUYANGFANGSHI。TASHIYIZHONGJIAOQIANGDEHAIYUANJI,YUSHUIZHONGYANGFANYINGSHENGCHENGLIUSUANNA,CONGERCHUQUSHUIZHONGDEYANG,FANYINGSHI:2Na2SO3+O2→2Na2SO4。ANLILUNJISUAN,CHUQU1mg/lDEYANGXUYAO8mg/lDEYALIUSUANNA,DANSHIJISHANGYAOJIARU20mg/lGONGYEYALIUSUANNA(Na2SO4 .7H2O)。

香港最准一肖中特公开选料1YALIUSUANNACHUYANGJIJIANTOUZIXIAO,YUNXINGCAOZUOJIANDAN,DANSHICHUYANGXIAOGUOBUKEKAO,ZENGJIAGUOLUSHUIDEHANYANLIANG,XUJIADAPAIWU,ZAOCHENGRELIANGHESHUILIANGDESUNSHI,YEZENGDALEGUOLUCHANSHENGCaSO4SHUIGOUDEKENENGXING。YALIUSUANNACHUYANGZHINENGYONGYUYALIJIAODIDEZHONGXIAOGUOLU。

(2)LIANANCHUYANG

LIANANZAICHANGWENXIASHIWUSEYETI,YIRONGYUSHUIYUYICHUN。LIANANSHIJIWEIYOUXIAODECHUYANGJI,YUSHUIZHONGYANGQIFANYINGSHENGCHENGSHUIYUDANQI,BUZENGJIASHUIZHONGDEHANYANLIANG,FANYINGSHI:N2H4+O2→2H2O+N2,MUQIANZHUYAOYONGYURELICHUYANGHOUDEFUZHUCUOSHI,YICHEDIXIAOCHUSHUIZHONGCANLIUDEYANG。DANLIANANZAIDIWENSHIYURONGJIEYANGFANYINGSUDUJIAOMAN,QIEYIRANYIBAO,DUIRENTIKENENGYOUZHIAIZUOYONG。GULIANANCHANGYONGZAIZHONG、GAOYAGUOLU。

3.4.2SHUZHICHUYANG

SHUZHICHUYANGSHUYUHUAXUECHUYANGDEFANCHOU。CHUYANGSHUZHIANQIYUANLIDEBUTONG,KEFENWEI:YANGHUAHAIYUANXINGSHUZHI;ZAITIXINGSHUZHI;CHUMEIXINGSHUZHISANLEI。SHUZHICHUYANGXIAOGUOHENHAO,DANYUNXINGLIUSUMAN,SHISHEBEITIJIPANGDA,ZENGJIASHEBEITOUZI。SHUZHIJIAGEJIAOGUI,SHEBEICHUTOUZIJIAODA,YINCIYINGYONGJIAOSHAO。

3.5DIANHUAXUECHUYANG

香港最准一肖中特公开选料1DIANHUAXUECHUYANGJIUSHILIYONGDIANHUAXUEBAOHUDEYUANLI,RENWEIDEZAICHUYANGQIZHONGSHIYONGYIZHONGJINSHU(CHANGYONGLV),DANGSHUILIUGUOCHUYANGQISHITONGJINSHUFASHENGDIANHUAXUEFUSHI,SHUIZHONGYANGJIBEIXIAOHAO,CONGERDADAOCHUYANGDEXIAOGUO。

DIANHUAXUECHUYANGSHEBEIJIANDAN,CAOZUOFANGBIAN,YUNXINGFEIYONGDI,YUNXINGTIAOJIANZHENGCHANGSHIHANYANGLIANGKEJIANGZHI0.1mg/l。DIANHUAXUECHUYANGXIAOLVYUDAICHUYANGSHUIZHONGHANYANGLIANGDAXIAOWUGUAN,YULIUSU、SHUIWEN、DIANLIUDAXIAOYOUGUAN。SHUIWENZUIHAOZAI70℃ZUOYOU,BUDEDIYU40℃。DIANHUAXUECHUYANGMUQIANSHANGWUCHENGSHUJINGYAN,GUOLUYUNXINGGUOCHENGZHONGHUICHUXIANPIANZHUANGCHENDIANWU,CHUYANGQIBENSHENYISHENGFUSHI。

3.6GANGXIECHUYANG

香港最准一肖中特公开选料1GANGXIECHUYANGJIUSHISHISHUIJINGGUOGANGXIECHUYANGQI,GANGXIEBEIYANGHUA,ERJIANGSHUIZHONGDERONGJIEYANGCHUQU,FANYINGSHIWEI:3Fe+2O2→Fe3O4。GANGXIEDECAILIAOKEYIYONG0~6HAOTANSUGANG,GANGXIEHOUDUYIBANYONG0.5~1mm,ZHANGDUWEI8~12mm,YAOCAIYONGQIEXUEXIABUJIUDEGANGXIE。ZAIZHUANGRUQIAN,YINGXIANYONG2%~3%DEJIANRONGYEXIQUFUZHEZAIGANGXIEBIAOMIANDEYOUWU,ZAIYONGRESHUICHONGQUJIANRONGYE,RANHOUYONG2%~3%DELIUSUANRONGYECHULI20~30min,ZAIYONGRESHUICHONGXI,SHIGANGXIEBIAOMIANRONGYIYUYANGQIZUOYONG,GANGXIEZHUANGRUCHUYANGQIHOUYAOYAJIN。

GANGXIECHUYANGQIZHUANGZHIJIANDAN,TOUZIXIAO,CAOZUOYEBIJIAOFANGBIAN。DANSHUIWENGUODIHUOQINGYANGGENJIANDUGUODA,GANGXIEBIAOMIANDUNHUA,DOUHUISHICHUYANGXIAOGUOJIANGDI,TONGSHIGENGHUANGANGXIELAODONGQIANGDUYEJIAODA。YOUDEGUOLUFANGJIANGGANGXIECHUYANGYUJIARUFANYINGJICHUYANGLIANHESHIYONG,XIAOGUOJIAOHAO。

4.GEZHONGCHUYANGFANGSHIDEBIJIAO

TONGGUODUIGONGREGUOLUJISHUIGEZHONGCHUYANGFANGSHIDEGONGZUOYUANLIYUCHUYANGXIAOGUODEFENXI,WOMENDUIRESHUIGUOLUJISHUIDECHUYANGFANGSHIYOULEGENGJIAQUANMIANQINGCHUDERENSHI。ZAIXUANZERESHUIGUOLUJISHUICHUYANGFANGSHISHI,YINGCHONGFENKAOLVMEIZHONGCHUYANGFANGSHIGEZIDETEDIAN,GENJUGONGREXITONGDEBUTONGQINGKUANGJIAYIXUANZE:

(1)DIANHUAXUECHUYANGJISHUBUCHENGSHU,MUQIANBUBIANYINGYONG;

香港最准一肖中特公开选料1(2)RELICHUYANGSHIYIZHONGBIJIAOCHENGSHUDEJISHU,NENGDADAOBIJIAOLIXIANGDECHUYANGXIAOGUO,DANNANYIYINGYONGYURESHUIGUOLU,ERQIEYUNXINGGUANLIDIAOJIEBIJIAOKUNNAN,JIJIANTOUZIDA,ZAIYOUQIYUANDEQINGKUANGXIAKEYIKAOLVCAIYONG;

(3)ZHENKONGCHUYANGSHUYUDIWENCHUYANG,TONGRELICHUYANGXIANGBI,JIAREWENDUYOUSUOJIANGDI。ZHENKONGCHUYANGDECHUYANGXIAOGUOJIAOHAO,DANJIJIANTOUZIDA,XITONGFUZA,YUNXINGFEIYONGJIAOGAO,DUIYUNXINGGUANLIYAOQIUGAO,TEBIESHIZHENKONGDUNANYIBAOZHENG;

(4)JIEXICHUYANGRUODIAOZHENGHAO,CHUYANGXIAOGUOSHIBIJIAOHAODE,TOUZIYEJIAOXIAO,YUNXINGFEIYONGBIJIAODI。DANYUNXINGZHONGDIAOJIEBIJIAOKUNNAN,YINERCHUYANGXIAOGUOBUWENDING;

(5)JIAYALIUSUANNACHUYANGSHEBEIJIANDAN、CAOZUOFANGBIAN,TOUZIDI,CHUYANGXIAOGUOLIANGHAO,DANYUNXINGFEIYONGHENGAO,QIEZENGJIAGUOLUSHUIDEHANYANLIANG,BUDEBUJIADAPAIWU,ZAOCHENGRELIANGHESHUILIANGDESUNSHI,ZAIJINGJIYUJISHUSHANGKAN,CIFABULIXIANG;

(6)GANGXIECHUYANGTOUZIXIAO,GUANLIFANGBIAN,YUNXINGFEIYONGDI,DANXIAOGUOBUWENDING,YIBANYAOQIUSHUIWEN≥70℃,QIEGENGHUANGANGXIELAODONGQIANGDUDA,TONGCHANGCAIYONGJIAYAOCHUYANGZUOBUCHONG;

ZONGSHANGSUOSHU:ZAIRELIXITONGZHONG,TEBIESHIDUIRESHUIGUOLU,CHUQUGUOLUJISHUIZHONGDERONGJIEYANG,SHIBAOHURELIXITONGZHONGSUOYOUSHEBEIBUSHOUFUSHIDEJIBENFANGFA,YESHIBAOZHENGRELISHEBEIANQUANJINGJIYUNXINGBIBUKESHAODESHOUDUAN。


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香港最准一肖中特公开选料1RESHUIGUOLU  GUOLUCHUYANG

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