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1、閘閥

閘閥是作為截止介質使用,在全開時整個流通直通,此時介質的運行的壓力,損失最小。

zhafatongchangshiyongyu,buxuyaojingchangqibi,erqiebaochizhabanquankaihuoquanbidegongkuang。bushiyongyuzuoweidiaojie、jieliushiyong。

duiyugaosuliudongdejiezhi,zhabanzaijubukaiqizhuangkuangxia,keyiyinqifamendezhendong,erzhendong,youkenengsunshangzhabanhefazuodemifengmian,erjieliu,huishizhabanzaoshoujiezhidechongshi。

congjiegouxingshishang,zhuyaodequbieshisuocaiyongdemifengyuanjiandexingshi。

genjumifengyuanjiandexingshi,changchangbazhafafenchengjizhongbutongdeleixing,ru:xieshizhafa、pingxingshizhafa、pingxingshuangzhabanzhafa、xieshishuangzhabanzhadeng。zuichangyongdexingshi,shixieshizhafahepingxingshizhafa。

2、截止閥

截止閥的閥桿軸線與閥座密封面垂直。閥桿開啟或關閉行程相對較短。

jiezhifadefabanyidanchuyukaiqizhuangkuang,tadefazuohefabanmifengmianzhijian,jiubuzaijiechu,yinertademifengmianjixiemosunjiaoxiao,youyudabufenjiezhifadefazuohefaban,bijiaorongyixiuli,genghuanmifengyuanjianshi,wuxubazhenggefamen,congguanxianshangchaixialai,zheduiyu,famenheguanxianhanjiechengyitidechanghe,shihenshihede。yishangtezhengshidejiezhifafeichangshihe,zuoweijiezhideqieduanhuodiaojiejijieliushiyong。

jiezhitongguocileifamenshi,liuliangfangxiangfashenglebianhua。yinci,jiezhifadeliudongzuli,jiaogaoyuqitafamen。

changyongdejiezhifa,youyixiajizhong:

  • 角式截止閥:在角式截止閥中,流體只需改變一次方向,以致于,通過次閥門的壓力,比常規結構的截止閥小。
  • 直流式截止閥:在直流式,或Y形截止閥中,閥體的流通與主流道成一斜線,這樣流動狀態的破壞程度,比常規截止閥要小,因而,通過閥門的壓力損失,也相應的小了。
  • 柱塞式截止閥:這種形式的截止閥是,常規截止閥的變形。在該閥門中,閥瓣和閥座通常是,基于柱塞原理設計的。閥瓣磨光成柱塞與閥桿相連接,密封是由套在,柱塞上的兩個彈性密封圈實現的。

lianggedanxingmifengquanyongyigetaohuangekai,bingtongguoyoufagailuomu,shijiazaifagaishangdezaihebazhusaizhouweidemifengquanyalao。danxingmifengquannenggougenghuan,keyicaiyonggezhonggeyangdecailiaozhicheng,gaifamenzhuyaoyongyu“kai”huozhe“guan”,danshigeyoutezhixingshidezhusaihuoteshudetaohuan,yekeyiyongyudiaojieliuliang。

3、蝶閥

蝶閥的蝶板安裝于管道的直徑方向。在蝶閥閥體圓柱形通道內,圓盤形蝶板繞著軸線旋轉,旋轉角度為 0~90 度之間,旋轉到 90 度時,閥門則全開狀態

diefajiegoujiandan、tijixiao、zhongliangqing,zhiyoushaoshujigelingjianzucheng。erqiezhixuxuanzhuan 90 du,jikekuaisuqibi,caozuojiandan,tongshigaifamen,juyoulianghaodeliutikongzhitexing。diefachuyuwanquankaiqiweizhishi,diefahoudushi,jiezhiliufatishiweiyidezuli,yinci,tongguogaifamensuochanshengdeyalijianghenxiao。diefayoudanmifenghejinshumifengliangzhongmifengxingshi。danxingmifengfamen,mifengquankeyixiangqianzaifatishang,huofujindiebanzhoubian。

caiyongjinshumifengdefamenyibanbidanxingmifengdefamenshoumingchang,danhennanzuodaowanquanmifeng。jinshumifengnengshiyingjiaogaodegongzuowendu,danxingmifengzejuyou,shouwenduxianzhidequexian。

ruguoyaoqiudiefazuoweiliuliangkongzhishiyong,zhuyaodeshi,zhengquexuanzefamendechicunheleixing。diefadejiegouyuanli,youqishiyongzhizuodakoujingfamen。diefabujinzaishiyou、meiqi、huagong、shuichulidengyibangongyeshangdedaoguangfanshiyong,erqiehuanyingyongyuredianzhandelengqueshuixitong。

changyongdediefayouduijiashidiefahuofalanshidiefaliangzhong:

duijiashidiefashi,yongshuangtouluoshuanjiangfamenlianjiezailiangguandaofalanzhijian。

falanshidiefashi,famenshangdaiyoufalan,yongluoshuanjiangfamenshangliangduanfalanlianjiezaiguandaofalanshang。

4、球閥

球閥是由旋轉閥演變而來。它具有相同的旋轉 90 度動作,不同的是,旋塞體是球體,由圓形通孔,或通道通過其軸線。

qiumianhetongdaokoudebili,yinggaishizheyangde,jidangqiuxuanzhuan 90 dushi,zaijin、chukouchuyingquanbuchengxianqiumian,congerjieduanliudong。

qiufazhixuyaoyong 90 dudecaozuohehenxiaodezhuandongliju,jiunengguanbiyanmi。anquanpingdengdefamenneiqiang,weijiezhitigonglezulihenxiao、zhitongdeliudao。

tongchangrenweiqiufazuishiyizhijiezuokaibishiyong,danjinlaidefazhanyijiangqiufashejicheng,shitajuyoujieliuhekongzhiliuliangzhiyong。

qiufadezhuyaotedianshi,benshenjiegoujincou、yiyucaozuoheweihu,shiyongyushui、rongji、suanhetianranqidengyibangongzuojiezhi,erqiehuanshiyongyugongzuotiaojianeliedejiezhi,ruyangqi、guoyanghuaqing、jiawanheyixi。qiufafatikeyishizhengtide,yekeyishizuheshide。

5、止回閥

止回閥只允許介質向一個方向流動,而且阻止反方向流動。通常止回閥是自動工作的,在一個方向流動的流體壓力作用下,閥瓣打開;流體反方向流動時,由流體壓力和閥瓣的自重和閥瓣作用于閥座,從而切斷流動。

zhihuifabaokuoxuanqishizhihuifaheshengjiangshizhihuifa。

xuanqishizhihuifayouyigejiejiaolianjigou,huanyouyigexiangmenyiyangdefabanziyoudikaozaiqingxiedifazuobiaomianshang。

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fabankeyiquanbuyongjinshuzhicheng,yekeyizaijinshushangxiangqianpige、xiangjiao、huozhecaiyonghechengfugaimian,zhequjueyushiyongxingnengdeyaoqiu。

xuanqishizhihuifazaiwanquandakaidezhuangkuangxia,liutiyalijihubushouzuai,yincitongguofamendeyalijiangjiangduijiaoxiao。

shengjiangshizhihuifadefabanzuoluo,weiyufatishangfazuomifengmianshang。cifamenchulefabankeyiziyoudishengjiangzhiwai,qiyubufenrutongjiezhifayiyang,liutiyalishifaban,congfazuomifengmianshangtaiqi,jiezhihuiliudaozhifabanhuiluodaofazuoshang,bingqieduanliudong。

genjushiyongtiaojian,fabankeyishiquanjinshujigou,yekeyishifabanjiashangxiangqianxiangjiaodian,huoxiangjiaohuandexingshi。

xiangjiezhifayiyang,liutitongguoshengjiangshizhihuifadetongdaoyeshixiazhaide,yincitongguoshengjiangshizhihuifadeyalijiang,bixuanqishizhihuifadaxie,erqiexuanqishizhihuifadeliuliang,shoudaodexianzhihenshao。

andiaojiejiezhicanshuxuanyongfamen。

zaishengchanguochengzhong,weileshijiezhideyali、liuliangdengcanshufuhegongyiliuchengdeyaoqiu,xuyaoanzhuangdiaojiejigouduishangshucanshujinxingdiaojie。

diaojiejigoudezhuyaogongzuoyuanli,shikaogaibianfamenfabanhefabanyufazuodeliutongmianji,dadaodiaojieshangshucanshudemude。

shuyuzheleifamendetongchengweikongzhifa,qizhongfenweiyikaojiezhibenshendongliqudongdechengweiziqushikongzhifa,ru:jianyafa、wenyafadeng,fanlingxianshanglaidedongliqudongde(rudianli、yasuokongqiheyedongli)chengweitaqushikongzhifa,rudiandongdiaojiefa、qidongdiaojiefaheyedongdiaojiefadeng。


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