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控制閥常見的故障分析及解決方法
發布時間:2021-3-26

kongzhifazailianyoujihuagongxingyeyingyongguangfan,shishengchanguochengzhongyonglaikongzhiliutiliuliang、yaliheyeweideyizhongchangyongdediaojieshebei。zaikong zhifadeyingyongzhong,jisuanhexuanxingshiqianti,anzhuanghediaoshishiguanjian,shiyongheweihushimude。kongzhifaruguoxuanxingbudang,anzhuangbudanghuozhediao shibuhao,jiuqibudaodiaojiezuoyong。yincishuxizhangwokongzhifagongzuoyuanliheweixiujinengxiangdangzhongyao。

控制閥原理

qidongkongzhifayiyasuokongqiweidongliyuan,tongguoqigang、bomoweizhixingjigou,bingjiezhudianqifamendingweiqi、zhuanhuanqi、diancifa,baowei fadengfujian,shixiankaiguanlianghuozhelianxudiaojie,jieshoudcsdekongzhixinhaolaidiaojiejiezhideliuliang、yali、wendudenggezhonggongyicanshu。qidongfa zhuyaofenweiqikaixingheqiguanxingliangzhong,tedianshikongzhijiandan、fanyingkuaisu、benzhianquan、buxuyaocaiyongfangbaocuoshi。

控制閥故障形式及原因

qidongkongzhifaguzhangxingshizhuyaowei:neiloufamenbudongzuo、kaidubodongjiaoda、chuxiankasaixianxiang、dongzuozhengchangdanliuliangweibianhua。yuanyinzhu yaoyou:fatiguzhang、qigangguzhang、dingweiqiguzhang、dcsguzhang、kongzhidianlanguzhang、weixiubaoyangbudaowei、famenpinzhiwenti、xuanxinghuozheshe jiyuanyin、qidongyuanjianguzhang。

    01、閥體故障及對策

    changjianguzhang

    1)diefajinshufazuosunhuaidaozhifatibeikazhu;diefagudingchaxiaotuoluohuozhebanqiufafaxinyufaganlianjieluoshuan huasi,zhuyaobiaoxianweifazhoukanqilaiyijingdongzuodanshijifaxinbingweidongzuo

    2)qiufafatineibumosundaozhifamenrongyibeikahuozhefamendongzuochihuan;qiufaruanmifengdianquansunhuaidaozhifamen neilouhuozhebeika。

    3)banqiufafazhouzhoutaosunhuaidaozhifamendongzuokunnan。

    4)zhengqifafaganmifengyingaowenlaohuadaozhizhengqixielou;zhengqifaxiaoyinbantuoluo,daozhifamenjingchangbeikazhuer qieguandaozaoyinyichangda。

    5)faganneibumosunhuozhefushidaozhifamenneilou;fagantianliaochumifengjiansunhuaierxielou。

    yuanyinduice

    1)faxinfazuoxieloudechanshengyuanyinweifaxinfazuobiaomianmosunhuozhebeifushi,zhixingjigouzuoyonglitaixiao,fazuo luowenbeimosunersongdong。guzhangchulifangshi:gaishanyanmojiehemian,diaozhengzhixingjigouhefagandelianjie,ningjinluoshuanhuozhegenghuanfaxinfazuo。

    2)fazuohuanyufatizhijianxieloudechanshengyuanyinweiningjinlijutaixiao,fatibiaomianguangjieducha,dianpianbuheshi, fatiyouxiaokonghuozheyoumaoci。guzhangchulifangshi:jiadaningli,zhongxinqingxihechulifati,genghuanheshidedianpian,zhongxinjiangfatihanjiechuli。

    3)tianliaoxieloudechanshengyuanyinweifaganguangjiedubuhaohuozhechanshengwanqu,tianliaogaimeiyouyajinhuozhetianliaoleixingbuheli,tianliaocengduidetaigao, tianliaochuxianfushikenghuozhetianliaogaibianxingsunhuai。guzhangchulifangshi:moguangfaganbingyazhi,zhongxinningjinhuogenghuantianliao;anzhuangjiangehuan,jianshaogao du,gaiweixingnenghaodetianliao,xiuligenghuanyagaijixiangguandefalanluoshuandeng。

    4)faganjifazhendongerdaozhifaganlianjiechutuokaihuozhezheduan,chanshengyuanyinweilijutaida,xiaozilianjiebuheshi。guzhangchulifangshi:gaiyongfa xinfaganzhengtijianhuozhehanjiefaxin,jianglianjiejianlianjielaogu,xiaochuzhendongyinshu。fazhendongdechanshengyuanyinweimifengtianliaoxielou,pangluweidiaohao, dingweiqizengyitaigao,zhichengbuhaoyouzhendongyuan。guzhangchulifangshi:runhuatianliaobingdiaozheng,zhongxindiaozhengpanglu,xuanyongdizengyixingdingweiqi,jiangfa gudinglaogubikaizhendongyuan。

    02、氣缸故障原因及對策

    changjianguzhang

    1)zhixingjigouxianweiluoshuantuoluodaozhiqiganglouqi,yinqifamenbunengdongzuohuozhedongzuochihuan,dabudaoyudingkai du。

    2)qigangoxingmifenghuansunhuaidaozhilouqi,yinqifamendongzuokunnanhuozhebunengdongzuo。

    3)qiganghuosaibianxingdaozhimocalizengda,qigangluoshuansongdongyinqiqiganglouqi,congeryinqifamendongzuokunnan。

    4)qigangdaidongfatidongzuodeliandongjigousongtuohuozheshengxiudaozhifamendongzuokunnan。

    5)qigangrongliangpianxiaohuozheqigangdanhuangguzhangdaozhifamendongzuokunnan。

    yuanyinduice

    1)huosaimifengchuxieloudechanshengyuanyinweiqigangguangjiedutaicha;huosaihuanzhuangpeimifengxingbugou,mifenghuanshiyongwen duguogao,mifengjianshiyongshijiantaichangsunhuai。guzhangchulifangshi:yanmoqigangbingzhongxindiaozhengqigangxianweiluoshuan,genjushiyongwenduzhongxinxuanzemifeng huan,genghuanshiyingzhengqueanzhuang。

    2)qigangxianweiluoshuansongdongdechulifangshi:zhongxinjiangluoshuanningjin。

    3)huosaimocalidadechulifangshi:zhongxinturunhuayou,zhongxinqingxijiyanmoqiganghehuosai。

    4)famendongzuokunnanbunengdadaogudingxingcheng,zhixingjigoudanhuangdingzhibugouhuozhedanhuangsunhuai,xianweikuaiweizhibu zhun。chulifangshi:xiaozhun、zhongdiao、genghuandanhuang。

    03、定位器故障原因及對策

    changjianguzhang

    1)dingweiqidianlubanguzhangyinqifamendongzuobuzhengchang。

    2)xiaohuafasunhuaihuozheyoumosunyinqifamendongzuoyichang,yuanyinweiyibiaokongqijiejingdubugao,huozheyouzangwujin rudingweiqineibudaozhixiaohuafamosuncongeryinqifamendongzuoyichang。

    3)dingweiqibilifasunhuaiyinqifamendongzuoyichang。

    4)huadongbianzuqisunhuaidaozhifamendingweibuzhun,yinqifamendongzuochuxianyichang,zhuyaoyuanyinweihuanjingwenduguogao qieyoushuidengqitayetijinrudaozhibianzuqisunhuai。

    5)dingweiqiqiyuanjiekoudeoxingmifenghuanduanlie,daozhiduanliedeoxingmifenghuankazhuxiaohuafafagan,shizhibunengdong zuo。

    6)dingweiqigelantouchumifengxingbuhao,daozhidingweiqidianlubanjinshuisunhuai。

    7)yinguandaozhendongguoda,zhouweihuanjingwenduguogao,shiduguoda,yinqidianlubanchuxianguzhang。

    yuanyinduice

    1)gelantouchumifengwentidaozhidingweiqijinshuiyinqidianlubansunhuai。guzhangchulifangshi:tigaogelantoumifengxing ,congerbimiandingweiqineibujinshuidaozhidianlubansunhuai。

    2)yinyibiaokongqishidudaqiehuichenjiaoduo,daozhixiaohuafajinruzangwueryinqixiaohuafamosun,congershifamendong zuobuzhengchang。guzhangchulifangshi:zengjiakongqiguolvqiyigaishanyibiaokongqizhiliang。

    3)yinzhoubianwenduguogao、shiduguoda、zhendongguodadaozhihuadongbianzuqijidianlubanpinfansunhuai。guzhangchulifang shi:jiangdianlubanhexiaohuafajihuadongbianzuqifenli,zuochengfenlishifamendingweiqi。

    4)yindingweiqioxingmifenghuanjingchangduanlie,daozhixiaohuafafaganbeikazhu,zhuyaoyuanyinweiqiyuanyaliguoda,zheng changqingkuangyingwei0.5mpazuoyou,gaoyu0.5mpashihuidaozhimifengquanlaohuajiakuai,rongyisunhuai。guzhangchulifangshi:shiqiyuanyalibaochizai0.4mpa zuoyou,lingwaixutigongzhilianggenghaodemifengquan。

    04、工藝及設計引起的故障及對策

    changjianguzhang

    1)gongyicanshugaibiandaozhiguandaoyachaguodadengyuanyinyinqidefamenbunengdongzuo。

    2)yinjiezhiyuanyindaozhifatijiegou,yinqifamendongzuoyichang。

    3)yinguandaodusaiyinqidefamenbunengzhengchangdongzuo。

    4)yinshejixuanxingyuanyin,zhixingjigoupianxiao,lijubugou,famenbunengzhengchangdongzuo,faticaizhibuheshi,dao zhifatisunhuai。

    yuanyinduice

    1)yachaguodadaozhikongzhifabunengzhengchangkaiqi。chulifangshi:zaikongzhifaqianhoujiazhuang1taipangtongfa。

    2)yingongyiyuanyinfatijiegouerdaozhikongzhifabunengzhengchangkaiqi。chulifangshi:zengjiachongxishuiguan,lingwaidingqi chaikaifamenqingxifati,biyaoshidamofaxin。

    3)guandaodusaidaozhikongzhifabunengdongzuo。chulifangshi:youhuacaozuofangshi,jinliangbushiguandaodusai,lingwaichai kaiguandaochongxifamen。

    4)guanyushejixuanxingwenti。chulifangshi:zaishejijieduanjinliangyouhuagezhonggongyicanshu,baozhengxuanxingshibuhuiyin weigongyicanshubuzhundaozhixuanxingchuxianwenti。

    05、DCS原因引起的故障及對策

    changjianguzhang

    1)i/okajiansunhuaimeiyouxinhaoshuchudaozhikongzhifabunengdongzuo。

    2)dcsshuchuxinhaobuwending,daozhikongzhifakaidubodong,shikongzhifadongzuobuzhengchang。

    3)kongzhidianlansunhuaihuozhejueyuanbuhao、jiexiansongdongdaozhixinhaobuzhengchangcongeryinqikongzhifadongzuobuzhengchang。

    4)youyubaoyangbudaoweidaozhidingweiqijinshui,qigangfushilouqi,qiyuanguankataotuoluolouqidengyuanyinyinqikongzhi fadongzuobuzhengchang。

    5)youyuxunchabuxizhi,yinhuanweijishifaxiandaozhijinyibukuoda,zuizhongyinqikongzhifadongzuoyichang。

    yuanyinduice

    richangyingzuohaoweixiubaoyanghexunjiangongzuo,faxianyinhuanjishichuli;dangkongzhifakaiduchuxianbodongshijishijiancha pidcanshushezhishifouzhengquebingjishidiaozhengcanshu。

    06、氣動元件損壞導致的故障及對策

    changjianguzhang

    1)qiyuanruanguanlaohuaposunhuozhebuxiugangqiyuanguanlouqidaozhiqiyuanyalipiandi,shikongzhifadongzuochuxianyichang。

    2)kongqiguolvqiduanliehuozheguolvqilvxinguozangdaozhikongzhifadongzuochuxianyichang。

    3)qiyuanyalipiandihuozheqiyuanweikaidaozhikongzhifadongzuochuxianyichang。

    yuanyinduice

    1)genghuanzhilianggenghaodeqiyuanruanguanhuozhekongqiguolvqi;dingqixunjian,faxianqiyuanruanguanhuozhekongqiguolvqiyou posunlouqijixiangshi,huozhelvxinguozangxuzhaojihuijinkuaigenghuan。

    2)diaozhengqiyuanyalimanzuqidongfamenzuixiaoqiyuanyaliyaoqiu。