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摘要:通過對某廠氣動薄膜調節閥產生故障的原因進行分析,提出幾種有效的處理辦法,為解決生產實際中發生的同類型故障提供參考。

關鍵詞氣動薄膜調節閥故障分析處理

1 引言

dianxingdeguochengkongzhixitongzhuyaoyousangehuanjie——jiance、kongzhihezhixing。qidongbomodiaojiefazuoweizhixingqizheyihuanjiedezhuyaochanpin,yingyongdeshifenguangfan。tashiguochengkongzhixitongzhongyongqidonglicaozuoqugaibianliutiyaliheliuliangdezhuangzhi,yibanyiyasuokongqiweidongliyuan。shijishiyongzhong,guochengdeduoyangxingjigongyetiaojiandebianhua,baokuowendu、yalidengcanshudegaibiandouhuiyinqiqidongbomodiaojiefaxingnengdebuwending,chanshengguzhang。ertadedongzuolingminduzhijieguanxizhudiaojiexitongdezhiliang,zaishengchanzhongqizhujuzuqingzhongdezuoyong。

mouchangzhuyaogongxudejiareluranshaozikongxitong,qidongbomodiaojiefazuoweizhongduanzhixingzhuangzhi,jieshoulaizi plc dekongzhixinhaoduigongyicanshumeiqiliuliang、refengliuliang、lengfengliuliang、yanzhakaidudengjinxingdiaojieyishixianduiluwenheluyadekongzhi。ruhejiangdiqidongbomodiaojiefadeguzhangcishuchenglequebaoshengchanshunxingdeguanjian。

womenshoujilejinyinianlaigaizikongxitongdeqidongbomodiaojiefachanshengguzhangdeqingkuangbingjinxingfenxi,zongjiechuqidongbomodiaojiefadejizhongchangjianguzhangdezaochengyuanyinjiqichulibanfa,yigongtongleixingqiyezuoweicankao。

2 氣動薄膜調節閥的故障情況

2008 nian 1 yuezhi 2008 nian 12 yuemouchangqidongbomodiaojiefadeguzhangjiqifashengcishuguinawei《biao 1》。

《表 1》 氣動薄膜調節閥故障統計表
序號 故障類型 故障次數 累計故障次數
1 閥門定位器故障 57 57
2 膜片破裂 38 95
3 閥芯結焦 18 113
4 閥芯與閥桿脫開 7 120
5 接氣管漏氣 4 124
6 “O”型密封圈破裂 4 128
7 其他 3 131
8 合計 131  

genju《biao 1》deshujuzuochuqidongdiaojiefaguzhangcishupailiezhifangturutu 1 suoshi。

氣動調節閥故障次數排列圖(圖 1)
圖 1 氣動調節閥故障次數排列圖

cong《biao 1》jiqidongdiaojiefaguzhangqingkuangpailietuzhongkezhi,famendingweiqiguzhang、mopianguzhang、faxinguzhangzhanzongguzhangde 84.6%,shizaochengqidongdiaojiefaguzhangdezhuyaoyuanyin。

3 氣動薄膜調節閥故障原因分析

經過對氣動薄膜調節閥現場安裝和使用情況的調查及對調節閥本身結構等分析,并結合實驗進行驗證,找出影響調節閥各部分性能的因素。

3.1 造成閥門定位器故障的原因主要為

(1)qiyuanshuifenduo。yinweidingweiqicaiyongjixieshilipinghengyuanligongzuo,jipenzuidangbanjishu.youyupenzuikonghenxiao,yibeihuichenhuobuganjingdeqiyuanduzhu。erqiyuanshiyasuokongqi,hanshuiqi、youwu、huichendeng,rongyizaochengpenzuihefangdaqidezusai,shidingweiqiwufazhengchanggongzuo。

(2)famendingweiqilingweipiaoyida。yinfamendingweiqicaiyonglidepinghengyuanli,danhuangdedanxingxishuzaieliexianchangxiafashenggaibian,zaochengfamendingweiqidelingdianpiaoyi,daozhilingweibianhuada,shifangdaqishuchubuwending,zaochengdiaojiezhiliangxiajianghuowufadiaojie。

(3)fankuigansongtuo。youyufamendingweiqiweijixieshilipinghengshi,qikedongbujianjiaoduo,rongyishouwenduzhendongdeyingxiang,zaochengfankuigansongtuo。

3.2 造成膜片破裂的原因主要為

(1)qiyuanshuifenduo。yinqiyuanhanshuiqi、youwu、huichendengzaochengfangdaqizusai,shidingweiqibunengzhengchanggongzuo,daozhimopianpolie。

(2)qiyuanyalida。youyukongqiguolvjianyafadezhiliangwenti,bunengshixiandiaoyagongneng,wufajiangqiyuanyalikongzhizai 140kpa±5kpa,shiqiyuanyaliguoda,zaochengduimopiandechongji。

3.3 造成閥芯故障的原因主要為

(1)mifengquanlaohua。yinfazhiliangwenti,mifengquanlaohuayanzhong,zaochengfazuo(xin)yishoujiezhishenren。

(2)jiaoyouwuzhanjie、kazu。youyumeiqihanyoujiaoyou、shuidengzazhi,yizhanjieduijizaiguanneibi,faxinpianjiejiaogou,zhishifabunengdongzuo。

4 氣動薄膜調節閥故障處理辦法

4.1 閥門定位器故障的處理辦法

(1)gaiyongdanqizuoyibiaoqiyuan。danqiqingjie、ganjing、ganzao,qiebuhanyasuokongqizhongnanyilvchudeshui、you、chenlidengzazhi。

(2)zaiyibiaoqiyuanguanlushangzengjialechushui、chuchenzhuangzhi,ruqidongsanlianjiandeng,jinyibubaozhengleqiyuandechunjing。

(3)dingqixiaozhunfamendingweiqidelingwei。

(4)kekaolvgaiyongzhinengdingweiqi。kenengdingweiqiyou cpu、a/d、d/a zucheng,qigongzuoyuanliyuputongdingweiqijieranbutong。geidingzhishidiandongxinhao,buzaishilipingheng,yincinenggoukefuchangguidingweiqidequexian。

4.2 對膜片容易破裂問題的解決辦法

(1)baozhengyibiaoqiyuandeqingjie、ganzao。

(2)genghuankongqiguolvjianyafa。

(3)diaozhengqiyuanyaliwei 140kpa±5kpa。

4.3 對閥芯故障的處理辦法

(1)zhongxinjiagongfaxinyuchentaohuofazuozhijiandemifengquanbinggenghuan。

(2)dingqiqingchuzhantiewu。

(3)zaidiaojiefadeqianhouzengjialekongqichuisao,bimianlemeiqizhongdejiaoyoujicanzhadeleijiwugouduifaxindeyingxiang。

4.4 其它改進方法

(1)yibiaoweihurenyuanjiaqiangdianjian,dingqiqingjiefamendingweiqidefangdaqihehengjieliukongdengbujian,yibaozhengyibiaoyunxingzhuangtailianghao。

(2)caozuorenyuancaozuofamenshibunengguodahuoguoxiao,fouzerongyizaochengfaguzhang。yingyangezhixingbiaozhunhuazuoye。

5 結語

tongguoduimouchangjiareludeqidongbomodiaojiefashishishangshugaijincuoshihou,qidongbomodiaojiefadeguzhanglvdafudujiangdi,dadaobingchaoguoleyuqibiaozhun,quebaoleshengchandeshunlijinxing,bingjianshaoleweihurenyuandegongzuoliang。


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