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閥門電動裝置是實現閥門程控、自控和遙控不可缺少的設備,其運動過程可由行程、轉矩或軸向推力的大小來控制。由于閥門電動裝置的工作特性和利用率取決于閥門的種類、裝置工作規范及閥門在管線或設備上的位置。因此,正確選擇閥門電動裝置,對防止出現超負荷現象(工作轉矩高于控制轉矩)至關重要。

tongchang,zhengquexuanzefamendiandongzhuangzhideyijuruxia:

1 操作力矩

caozuolijushixuanzefamendiandongzhuangzhidezuizhuyaocanshu,diandongzhuangzhishuchulijuyingweifamencaozuozuidalijude 1.2~1.5 bei。

2 操作推力

famendiandongzhuangzhidezhujijiegouyouliangzhong:yizhongshibupeizhituilipan,zhijieshuchuliju;lingyizhongshipeizhituilipan,shuchulijutongguotuilipanzhongdefaganluomuzhuanhuanweishuchutuili。

3 輸出軸轉動圈數

famendiandongzhuangzhishuchuzhouzhuandongquanshudeduoshaoyufamendegongchengtongjing、faganluoju、luowentoushuyouguan,yaoan m=h/zs jisuan(m weidiandongzhuangzhiyingmanzudezongzhuandongquanshu,h weifamenkaiqigaodu,s weifaganchuandongluowenluoju,z weifaganluowentoushu)。

4 閥桿直徑

duiduohuizhuanleimingganfamen,ruguodiandongzhuangzhiyunxutongguodezuidafaganzhijingbunengtongguosuopeifamendefagan,bianbunengzuzhuangchengdiandongfamen。yinci,diandongzhuangzhikongxinshuchuzhoudeneijingbixudayumingganfamendefaganwaijing。duibufenhuizhuanfamenyijiduohuizhuanfamenzhongdeanganfamen,suibuyongkaolvfaganzhijingdetongguowenti,danzaixuanpeishiyiyingchongfenkaolvfaganzhijingyujiancaodechicun,shizuzhuanghounengzhengchanggongzuo。

5 輸出轉速

famendeqibisuduruoguokuai,yichanshengshuijixianxiang。yinci,yinggenjubutongshiyongtiaojian,xuanzeqiadangdeqibisudu。

famendiandongzhuangzhiyouqiteshuyaoqiu,jibixunenggouxiandingzhuanjuhuozhouxiangli。tongchangfamendiandongzhuangzhicaiyongxianzhizhuanjudelianzhouqi。dangdiandongzhuangzhiguigequedingzhihou,qikongzhizhuanjuyejiuquedingle。yibanzaiyuxianquedingdeshijianneiyunxing,dianjibuhuichaofuhe。danruchuxianxialieqingkuangbiankenengdaozhichaofuhe:yishidianyuandianyadi,debudaosuoxudezhuanju,shidianjitingzhizhuandong;ershicuowudidiaodingzhuanjuxianzhijigou,shiqidayutingzhidezhuanju,zaochenglianxuchanshengguodazhuanju,shidianjitingzhizhuandong;sanshiduanxushiyong,chanshengdereliangjixu,chaoguoledianjideyunxuwenshengzhi;sishiyinmouzhongyuanyinzhuanjuxianzhijigoudianlufashengguzhang,shizhuanjuguoda;wushishiyonghuanjingwenduguogao,xiangduishidianjirerongliangxiajiang。

guoquduidianjijinxingbaohudebanfashishiyongrongduanqi、guoliujidianqi、rejidianqi、hengwenqideng,danzhexiebanfageyoulibi。duidiandongzhuangzhizhezhongbianfuheshebei,jueduikekaodebaohubanfashimeiyoude。yinci,bixucaiqugezhongzuhefangshi,guinaqilaiyouliangzhong:yishiduidianjishurudianliudezengjianjinxingpanduan;ershiduidianjibenshenfareqingkuangjinxingpanduan。zheliangzhongfangshi,wulunneizhongdouyaokaolvdianjireronglianggeidingdeshijianyuliang。

tongchang,guofuhedejibenbaohufangfashi:duidianjilianxuyunzhuanhuodiandongcaozuodeguofuhebaohu,caiyonghengwenqi;duidianjiduzhuandebaohu,caiyongrejidianqi;duiduanlushigu,caiyongrongduanqihuoguoliujidianqi。


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