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一、概述

隨著我國基本建設的發展,國家大型項目投入建設實施,使電力、石油、化工、城市供、排水系統等閥門的數量越來越多,尤其是蝶閥的用量很大。我國生產金屬硬密封蝶閥,從密封結構上可分為二大類,一是彈性硬密封結構,二是多層次硬密封蝶閥。彈性硬密封蝶閥生產口徑一般在 DN500 以下,大口徑多采用的是多層次結構。DN500 以下的蝶閥用量最大,所以用戶在使用時遇到的問題也就多,在此,就常出現的問題歸納總結,并指導正確安裝和使用

二、彈性結構分析及問題所在

danxingjiegouyingmifengdiefayoufati、faban、fagan、danxingfazuo、yahuandengzhuyaolingjianzucheng。

yahuandejiegoujizuoyong:yahuandecemianweifatidemifengmianyuguandaofalanmifengmianchengweimifengfu,cemianzhongyouluoshuankong,yongluoshuanyajinyahuanqigudingfazuozhiyong,tongshiyufatilianweiyiti,gouchengfamendezongdejiegouchangdu。

youyu,yahuancemianyouluosikongjingjiangyouxiaodemifengmianzhijingjianshao。congyonghushiyongfalandeqingkuang,daduoyongdeshipinghanfalan,qineijingyougongchengtongjingda 10~20mm。zheyangshiyongjiangyouxiaomifengmianjianshao,ruguo,anzhuangguochengfamenyuguandaofalanchuxianbutongxindehuajiuhuicuoweiyazailuoshuankongjingshangmian,cishi,guandaofalanneikongneiceluchuluoshuankongjing,zaochengcichuxielou。xieloutezhengweijiezhicongyahuanbeimianliuchu。

三、專用法蘭

muqian,guojiaduidanxingyingmifengdiefameiyoufalandexiangyingzhuanyongbiaozhun,womengenjuxianxingdeguojiabiaozhun,zaifalanguidingdebiaozhunchicunbubiandeqingkuangxia,jiangqineijingcaiyongchengchashide。falanneikongjingyugongchengtongjingjibenxiangtong,zheyangshiweilezengjiayouxiaodemifengmian,yeshigeianzhuangtigongyoulidefangbian,tongshibaozhengfamenzhengchangshiyong。

zaici,tixingyonghuzaishiyongdanxingyingmifengdiefashi,peiduidefanfalanyidingyaoyongzhuanyongfalan,tebieshiyufatiyahuanmianpeiduideguandaofalan,yidingyaoyongzhuanyongfalan。

四、閥體上的箭頭方向指的是介質的壓力方向

tongchangfatishangzhuchudejiantoufangxiang,zhideshijiezhideliuxiang,shiyongzhekandaojiantouhou,shunlichengzhanganliuxiangyujiantoufangxiangyizhianzhuang,zheyanganzhuangyichengweixiguan,anzhuangzhehenrongyijieshouzhezhongzhishi,anguojiabiaozhunguidingdeyemeishenmecuowu。danshiyongzaipianxinjiegoudediefalaijiang,zheyanganzhuangyoushihuichuxianyixiewenti,xiamianshuogelizi:pianxindiefaanliuxiangyujiezhiliuxiangyizhianzhuang,guanneijiezhishiyeti,famenguanbihou,ruoyuanlaijiezhijinkoufangxiangdeyali,jianshaohuoweilingshi,chukoudejiezhichuxianfanliudaoliu,ruguoshigaocenggonggeishi,jiezhichuyugaoweierchanshengyali,qiyalidayujinkouyalishi,cifamenjiuyaochengshoufanxiangyalidezuoyong,yinputongyingmifengdiefaweidanxiangshiyongfamen,zheyangshiyongjiubuliyudiefademifengxing,erqiehuichuxianxielou。congshangshudelizidechujielun:diefafatidejiantoufangxiangzhideshijiezhideyalifangxiang。yonghuzaianzhuangqianyaoqingchuzhidaofamenguanbihoujiezhiyalidefangxiang,ziyoufatijiantoufangxiangyujiezhiyalifangxiangyizhijiunengdadaozhengquedeshiyong,erqiemifengxingbaochilianghaozhuangtai。

五、彈性硬密封蝶閥到用戶地驗收注意事項

yonghuduicaigoudifamenzuochouyanghuoquanbujianyanshishifenbiyaode,duichanpindezhiliangzuochoujianshi:yishiduichanpindezhiliangbaguan,ershijianshaoanzhuanghoufamenbubiyaodeweixiuhegengxin,yicianzhuangchenggonglvgao。danshiyonghuzaichoujianshiduiyingmifengdiefadeceshishang,youxiemeizhuyidedifang,zaochengduifamenidezhiliangchansheng,huaiyihuoyibuhegejushou。yuanyinchuzainalini?yahuanshangdeluosigenjukoujingdaxiaofenbieyou 4 ge、6 ge、8 gehe 12 ge,qiluoshuanzhijingzuidabuchaoguo m10。zhejigeluosizhuyaoshigudingdanxingfazuozhiyong,bunengchengshouquanbudejiezhiyali,dangfamenanzhuangzaiguandaokaowaifalanluoshuanyajinzuoyonghou,cainengchengshouquanbudejiezhililiang。yinjiegoushangdeyuanyin,zaochengjiancecaozuoyouchabieyanshoushichuxianxielou,yonghuyibuhegeweiyoutongzhichangjiashichangyoudeshi,jingguogoutonghouchanpindounengshunliguoguan,erqieshiyongzhongyemeiyouwenti。suoyi,zaicishuoxiayingzhuyideshixiang,weiyonghugenghaolejieheshiyongdanxingyingmifengdiefazuoxiajiaoliu。

ceshidanxingyingmifengdiefashi,jiangyahuanzheyicemianxiangshangpingfang,zaicipingmianshangfangzhiyigehefalanwaiyuan、famentongjingdaxiaojibenxiangtongdeyaban,ruguoyongshiyajiceshi,yazhuayaoyazaizhegeyabanshang,shiyalijunyunfenbuzaifatiyicedeyahuanshang。ruguoshiyongmangbanjinxingceshi,yibanduijiashidanxingyingmifengdiefadoushiyongerpianfalanduijiajiajindejinxingceshi,falanshidanxingyingmifengdiefayoushi,yonghuweilefangbianzhizaixiamianyongyipianfalanyufamenluoshuanguding,zheshi,fatishangmiandeyahuanshangdegudingluosijiuyaochengshoujiezhidequanbuyali,qianmianyishuodaolezhedian,zhejigeluosishibunengchengshouquanbujiezhideyalide,suoyiyongmangbanceshishifamenbuxielou,tongshiyeheshijishiyongdezhuangtaijibenxiangtong。

yishangjidianzaianzhuangguochengzhongchangyudaodewenti,ruguolejiewomendefamenjiegou,jiuhuigeinidailaianzhuangshangdefangbian,bingqienengzhengquedeshiyongdanxingyingmifengdiefa。


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