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疏水閥在蒸汽加熱系統中起到阻汽排水作用,選擇合適的疏水閥,可使蒸汽加熱設備達到最高工作效率。要想達到最理想的效果,就要對各種類型疏水閥的工作性能、特點進行全面的了解。

shushuifadepinzhonghenduo,geyoubutongdexingneng。xuanyongshushuifashi,shouxianyingxuanqitexingnengmanzuzhengqijiareshebeidezuijiayunxing,ranhoucaikaolvqitakeguantiaojian,zheyangxuanzenisuoxuyaodeshushuifacaishizhengqueheyouxiaode。

shushuifayaoneng“shibie”zhengqiheningjieshui,cainengqidaozuqipaishuizuoyong。“shibie”zhengqiheningjieshuijiyusangeyuanli:miducha、wenduchahexiangbian。yushijiugenjusangeyuanlizhizaochusanzhongleixingdeshushuifa:fenleiweijixiexing、rejinglixing、redonglixing。

一、機械型疏水閥

jixiexingyechengfuzixing,shiliyongningjieshuiyuzhengqidemiducha,tongguoningjieshuiyeweibianhua,shifuzishengjiangdaidongfabankaiqihuoguanbi,dadaozuqipaishuimude。jixiexingshushuifadeguolengduxiao,bushougongzuoyalihewendubianhuadeyingxiang,youshuijipai,jiareshebeilibucunshui,nengshijiareshebeidadaozuijiahuanrexiaolv。zuidabeiyalvwei80%,gongzuozhilianggao,shishengchangongyijiareshebeizuilixiangdeshushuifa。

jixiexingshushuifayouziyoufuqiushi、ziyoubanfuqiushi、gangganfuqiushi、daodiaotongshideng:

1、自由浮球式疏水閥

自由浮球式疏水閥的結構簡單,內部只有一個活動部件精細研磨的不銹鋼空心浮球,既是浮子又是啟閉件,無易損零件,使用壽命很長,“HG”疏水閥內部帶有 Y 系列自動排空氣裝置,非常靈敏,能自動排空氣,工作質量高。

設備剛啟動工作時,管道內的空氣經過 Y 系列自動排空氣裝置排出,低溫凝結水進入疏水閥內,凝結水的液位上升,浮球上升,閥門開啟,凝結水迅速排出,蒸汽很快進入設備,設備迅速升溫,Y 系列自動排空氣裝置的感溫液體膨脹,自動排空氣裝置關閉。疏水閥開始正常工作,浮球隨凝結水液位升降,阻汽排水。自由浮球式疏水閥的閥座總處于液位以下,形成水封,無蒸汽泄漏,節能效果好。最小工作壓力 0.01Mpa,從 0.01Mpa 至最高使用壓力范圍之內不受溫度和工作壓力波動的影響,連續排水。能排飽和溫度凝結水,最小過冷度為 0℃,加熱設備里不存水,能使加熱設備達到最佳換熱效率。背壓率大于 85%,是生產工藝加熱設備最理想的疏水閥之一。

2、自由半浮球式疏水閥

自由半浮球式疏水閥只有一個半浮球式的球桶為活動部件,開口朝下,球桶即是啟閉件,又是密封件。整個球面都可為密封,使用壽命很長,能抗水錘,沒有易損件,無故障,經久耐用,無蒸汽泄漏。背壓率大于 80%,能排飽和溫度凝結水,最小過冷度為 0℃,加熱設備里不存水,能使加熱設備達到最佳換熱效率。

dangzhuangzhigangqidongshi,guandaoneidekongqihediwenningjieshuijingguofasheguanjinrushushuifanei,faneideshuangjinshupianpaikongyuanjianbaqiutongdankai,famenkaiqi,kongqihediwenningjieshuixunsupaichu。dangzhengqijinruqiutongnei,qiutongchanshengxiangshangfuli,tongshifaneidewendushenggao,shuangjinshupianpaikongyuanjianshousuo,qiutongpiaoxiangfakou,famenguanbi。dangqiutongneidezhengqibianchengningjieshui,qiutongshiqufuliwangxiachen,famenkaiqi,ningjieshuixunsupaichu。dangzhengqizaijinruqiutongzhinei,famenzaiguanbi,jianduanhelianxugongzuo。

3、桿浮球式疏水閥

gangganfuqiushishushuifajibentedianyuziyoufuqiushixiangtong,neibujiegoushifuqiulianjieganggandaidongfaxin,suiningjieshuideyeweishengjiangjinxingkaiguanfamen。gangganfuqiushishushuifaliyongshuangfazuozengjianingjieshuipailiang,kedadaotijixiaopailiangda,zuidashushuiliangda 100 dun/xiaoshi,shidaxingjiareshebeizuilixiangdeshushuifa。

4、倒吊桶式疏水閥

daodiaotongshishushuifaneibushiyigedaodiaotongweiyeweiminganjian,diaotongkaikouxiangxia,daodiaotonglianjieganggandaidongfaxinkaibifamen。daodiaotongshishushuifanengpaikongqi,bupashuiji,kangwuxingnenghao。guolengduxiao,louqilvxiaoyu 3%,zuidabeiyalvwei 75%,lianjiejianbijiaoduo,lingminduburuziyoufuqiushishushuifa。yindaodiaotongshishushuifashikaozhengqixiangshangfuliguanbifamen,gongzuoyachaxiaoyu 0.1mpa shi,bushihexuanyong。

dangzhuangzhigangqidongshi,guandaoneidekongqihediwenningjieshuijinrushushuifanei,daodiaotongkaozishenzhongliangxiazhui,daodiaotonglianjieganggandaidongfaxinkaiqifamen,kongqihediwenningjieshuixunsupaichu。dangzhengqijinrudaodiaotongnei,daodiaotongdezhengqichanshengxiangshangfuli,daodiaotongshangshenglianjieganggandaidongfaxinguanbifamen。daodiaotongshangkaiyouyixiaokong,dangyibufenzhengqicongxiaokongpaichu,lingyibufenzhengqichanshengningjieshui,daodiaotongshiqufuli,kaozishenzhongliangxiangxiachen,daodiaotonglianjieganggandaidongfaxinkaiqifamen,xunhuangongzuo,jianduanpaishui。

5、組合式過熱蒸汽疏水閥

zuheshiguorezhengqishushuifayoulianggegelidefaqiang,youlianggenbuxiugangguanliantongshangxiafaqiang,tashiyoufuqiushihedaodiaotongshishushuifadezuhe,gaifajiegouxianjinheli,zaiguore、gaoya、xiaofuhedegongzuozhuangkuangxia,nenggoujishidipaifangguorezhengqixiaoshishixingchengdeningjieshui,youxiaodizuzhiguorezhengqixielou,gongzuozhilianggao。zuigaoyunxuwenduwei 600℃,fatiweiquanbuxiugang,fazuoweiyingzhihejingang,shiyongshoumingchang,shiguorezhengqizhuanyongshushuifa,qudeliangxiangguojiazhuanli,tianbuleguoneikongbai。

dangningjieshuijinruxiafaqiang,fufadefuqiusuiyeweishangsheng,fuqiufengbijinqiguankong。ningjieshuijingjinshuidaoguanshangshengdaozhufaqiang,daodiaotongkaozizhongxiazhui,daidongfaxindakaizhufamen,paifangningjieshui。dangfufaqiangdeningjieshuiyeweixiajiangshi,fuqiusuiyeweixiajiang,fufadakai。zhengqicongjinqiguanjinrushangzhufaqiangneidedaodiaotongli,daodiaotongchanshengxiangshangdefuli,daodiaotongdaidongfaxinguanbizhufamen。dangfufaqiangdeningjieshuiyeweizaishenggaoshi,xiayigexunhuanzhouqiyoukaishi,jianduanpaishui。

二、熱靜力型疏水閥

zheleishushuifashiliyongzhengqiheningjieshuidewenchayinqiganwenyuanjiandebianxinghuopengzhangdaidongfaxinqibifamen。rejinglixingshushuifadeguolengdubijiaoda,yibanguolengduwei 15 dudao 40 du,tanengliyongningjieshuizhongdeyibufenxianre,faqianshizhongcunyougaowenningjieshui,wuzhengqixielou,jienengxiaoguoxianzhu。shizaizhengqiguandao,banreguanxian、xiaoxingjiareshebei,cainuanshebei,wenduyaoqiubugaodexiaoxingjiareshebeishang,zuilixiangdeshushuifa。

rejinglixingshushuifayoumoheshi、bowenguanshi、shuangjinshupianshi。

1、膜盒式式疏水閥

moheshishushuifadezhuyaodongzuoyuanjianshijinshumohe,neichongyizhongqihuawendubishuidebaohewendudideyeti,youkaifawendudiyubaohewendu 15℃ he 30℃ liangzhonggongxuanze。moheshishushuifadefanyingtebielingmin,bupadong,tijixiao,naiguore,renyiweizhidoukeanzhuang。beiyalvdayu80%,nengpaibuningjieqiti,mohejiangu,shiyongshoumingchang,weixiufangbian,shiyongfanweihenguang。

zhuangzhigangqidongshi,guandaochuxiandiwenlengningshui,moheneideyetichuyulengningzhuangtai,famenchuyukaiqiweizhi。danglengningshuiwendujianjianshenggao,moheneichongyekaishizhengfa,moheneiyalishangsheng,mopiandaidongfaxinxiangguanbifangxiangyidong,zailengningshuidadaobaohewenduzhiqian,shushuifakaishiguanbi。mohesuizhengqiwendubianhuakongzhifamenkaiguan,qidaozuqipaishuizuoyong。

2、波紋管式疏水閥

bowenguanshishushuifadefaxinbuxiugangbowenguanneichongyizhongqihuawendudiyushuibaohewendudeyeti。suizhengqiwendubianhuakongzhifamenkaiguan,gaifasheyoudiaozhengluoshuan,kegenjuxuyaodiaojieshiyongwendu,yibanguolengdudiaozhengfanweidiyubaohewendu 15℃~40℃。beiyalvdayu 70%,bupadong,tijixiao,renyiweizhidoukeanzhuang,nengpaibuningjieqiti,shiyongshoumingchang。

dangzhuangzhiqidongshi,guandaochuxianlengqueningjieshui,bowenguanneiyetichuyulengningzhuangtai,faxinzaidanhuangdedanlixia,chuyukaiqiweizhi。danglengningshuiwendujianjianshenggao,bowenguanneichongyekaishizhengfapengzhang,neiyazenggao,bianxingshenchang,daidongfaxinxiangguanbifangxiangyidong,zailengningshuidadaobaohewenduzhiqian,shushuifakaishiguanbi,suizhengqiwendubianhuakongzhifamenkaiguan,zuqipaishui。

3、雙金屬片式疏水閥

雙金屬片疏水閥的主要部件是雙金屬片感溫元件,隨蒸汽溫度升降受熱變形,推動閥心開關閥門。雙金屬片式疏水閥設有調整螺栓,可根據需要調節使用溫度,一般過冷度調整范圍低于飽和溫度 15℃~30℃,背壓率大于 70%,能排不凝結氣體,不怕凍,體積小,能抗水錘,耐高壓,任意位置都可安裝。雙金屬片有疲勞性,須要經常調整。

dangzhuangzhigangqidongshi,guandaochuxiandiwenlengningshui,shuangjinshupianshipingzhande,faxinzaidanhuangdedanlixia,famenchuyukaiqiweizhi。danglengningshuiwendujianjianshenggao,shuangjinshupianganwenqiyuanjiankaishiwanqubianxing,bingbafaxintuixiangguanbiweizhi。zailengningshuidadaobaohewenduzhiqian,shushuifakaishiguanbi。shuangjinshupiansuizhengqiwendubianhuakongzhifamenkaiguan,zuqipaishui。

三、熱動力型疏水閥

zheleishushuifagenjuxiangbianyuanli,kaozhengqiheningjieshuitongguoshideliusuhetijibianhuadebutongrelixueyuanli,shifapianshangxiachanshengbutongyacha,qudongfapiankaiguanfamen。yinredonglishishushuifadegongzuodonglilaiyuanyuzhengqi,suoyizhengqilangfeibijiaoda。jiegoujiandan、naishuiji、zuidabeiwei 50%,youzaoyin,fapiangongzuopinfan,shiyongshoumingduan。

redonglixingshushuifayouredonglishi(yuanpanshi)、mochongshi、kongbanshi。

1、熱動力式疏水閥

redonglishishushuifaneiyouyigehuodongfapian,jishiminganjianyoushidongzuozhixingjian。genjuzhengqiheningjieshuitongguoshideliusuhetijibianhuadebutongrelixueyuanli,shifapianshangxiachanshengbutongyacha,qudongfapiankaiguanfamen。louqilv 3%,guolengduwei 8℃~15℃。

dangzhuangzhiqidongshi,guandaochuxianlengqueningjieshui,ningjieshuikaogongzuoyalituikaifapian,xunsupaifang。dangningjieshuipaifangwanbi,zhengqisuihoupaifang,yinzhengqibiningjieshuidetijiheliusuda,shifapianshangxiachanshengyacha,fapianzaizhengqiliusudexilixiaxunsuguanbi。dangfapianguanbishi,fapianshoudaoliangmianyali,fapianxiamiandeshoulimianjixiaoyushangmiandeshoulimianji,yinshushuifaqishilimiandeyalilaiyuanyuzhengqiyali,suoyifapianshangmianshoulidayuxiamian,fapianjinjinguanbi。dangshushuifaqishilimiandezhengqijiangwenchengningjieshui,qishilimiandeyalixiaoshi。ningjieshuikaogongzuoyalituikaifapian,ningjieshuiyoujixupaifang,xunhuangongzuo,jianduanpaishui。

2、圓盤式蒸汽保溫型疏水閥

圓盤式蒸汽保溫型疏水閥的工作原理和熱動力式疏水閥相同,它在熱動力式疏水閥的汽室外面增加一層外殼。外殼內室和蒸汽管道相通,利用管道自身蒸汽對疏水閥的主汽室進行保溫。使主汽室的溫度不易降溫,保持汽壓,疏水閥緊緊關閉。當管線產生凝結水,疏水閥外殼降溫,疏水閥開始排水;在過熱蒸汽管線上如果沒有凝結水產生,疏水閥不會開啟,工作質量高。閥體為合金鋼,閥心為硬質合金,該閥最高允許溫度為 550℃,經久耐用,使用壽命長,是高壓、高溫過熱蒸汽專用疏水閥。

3、脈沖式疏水閥

mochongshishushuifayouhelianggekongbangenjuzhengqiyajiangbianhuadiaojiefamenkaiguan,jishifamenwanquanguanbirukouhechukouyeshitongguodiyi、diergexiaokongxiangtong,shizhongchuyubuwanquanguanbizhuangtai,zhengqibuduanyichu,louqiliangda。gaishushuifadongzuopinlvhengao,mosunlihai、shoumingjiaoduan。tijixiao、naishuiji,nengpaichukongqihebaohewendushui,jiejinlianxupaishui,zuidabeiya 25%,yincishiyongzhehenshao。

4、孔板式疏水閥

kongbanshishushuifashigenjubutongdepaishuiliang,xuanzebutongkongjingdekongbankongzhipaishuiliangdemude。jiegoujiandan,xuanzebuheshihuichuxianpaishuibujihuodaliangpaoqi,bushiyongyujianxieshengchandeyongqishebeihuolengningshuiliangbodongdadeyongqishebei。


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