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浅谈压力变送器的常见故障及解决措施
发布日期:2016/10/12 1:50:18

 压力变送器是工业实践中的常用传感器,压力变送器发展至今已经取得了技术上的极大突破,从早期的大位移压力变送器,发展到上世纪五十年代的力平衡式差压变送器,再由七十年代结构简单的位移式变送器到九十年代智能化变送器, 后到今天结构简单、可靠性强的多类型压力变送器,压力变送器在结构、外观、性能等方面取得了极大的进步,在压力变送器的实际使用中,会出现各种各样的问题和故障,本文主要分析了常见的变送器故障原因并提出了解决办法。

  BIANSONGQISHIZIKONGXITONGDEYIGEZHONGYAOZUCHENGBUFEN,YALIBIANSONGQIZHUYAOYONGYUGONGYEGUOCHENGYALICANSHUDECELIANGHEKONGZHI,QIZAISHIYOU、HUAGONG、DIANLIDENGLINGYUDEYINGYONGSHIFENGUANGFAN。YALIBIANSONGQIDEZHONGLEIFANDUO,GENJUGONGZUOYUANLI、YONGTUDEBUTONGYOUBUTONGDEFENLEIFANGSHI。YALIBIANSONGQIZHUYAOYONGYUYALIDEYUANCHENGXIANSHIHEKONGZHI,QICHANGZAIGAOWEN、DIYA、FUSHI、ZHENDONGDENGHUANJINGXIAGONGZUO,CHUXIANGUZHANGDEJILVJIAODA,YINCIDUIYALIBIANSONGQIDEYINGXIANGYINSU、CHANGJIANGUZHANGDENGYANJIUSHISHIFENYOUYIYIDE。

1、YALIBIANSONGQICHANGJIANLEIXING

  压力变送器就是能够将压力变量转化为标准输出信号的仪表,压力变量与输出信号间存在一定的函数关系。根据不同的工作原理可将压力变送器分为以下几种:

  (1)YAZUSHIBIANSONGQI。YAZUSHIBIANSONGQISHIJIANGYALIZUOYONGDAOMOPIANDEQIANBIAOMIAN,ZAIYALIZUOYONGXIAMOPIANHUICHUXIANYIDINGDEXINGBIAN,GANYAMOPIANDEBEIMIANYINYOUHOUMODIANZU,JINERXINGCHENGYIGEHUISITONGDIANQIAO,ZAIYAZUXIAOYINGXIA,DIANQIAOHUICHANSHENGXIANGYINGDEDIANYAXINHAO,GAIXINHAOYUJILIDIANYACHENGZHENGBILIGUANXI。

  (2)YADIANSHIBIANSONGQI。YADIANSHIBIANSONGQISHILIYONGZHENGYADIANXIAOYINGYANZHICHULAIDE,ZHENGGAOYADIANXIAOYINGJIUSHIJIANGYIDINGDEWAILIZUOYONGYUDIANJIEZHISHIQIFASHENGBIANXING,DIANJIEZHINEIBUHUICHUXIANJIHUAXIANXIANG,BINGQIEZAIQILIANGGEBIAOMIANHUICHANSHENGZHENGFUBUTONGDEDIANHE,WAILITINGZHIZUOYONGSHI,DIANJIEZHIYOUHUIFUDAOBUDAIDIANDEZHUANGTAI。DIANHEDEJIXINGHUISUIZHEZUOYONGLIFANGXIANGDEGAIBIANERGAIBIAN。ZAIDIANJIEZHIJIXINGFANGXIANGSHIJIADIANCHANG,DIANJIEZHIYEHUIFASHENGBIANXING,CHEXIAOHOUDIANJIEZHIDEXINGBIANXIAOSHI,ZHEIJIUSHINIYADIANXIAOYING。

  (3)YINGBIANSHIBIANSONGQI。CAIYONGTESHUDEZHANHEJIJIANGYINGBIANPIANZHANHEZAIYIQIJINERCHANSHENGLIXUEYINGBIAN,ZAIJITISHOULIFASHENGBIANHUASHI,DIANZUYINGBIANPIANYEHUISUIZHICHUXIANYIDINGDEXINGBIAN,JINERYINGXIANGDAOZUZHIDEDAXIAO,DIANZUSHANGDEDIANYAFASHENGGAIBIAN。DANSHICIZHONGQINGKUANGXIAZUZHIDEBIANHUAJIAOXIAO,TONGCHANGQINGKUANGXIAZUCHENGYINGBIANDIANQIAO,ZAIYIBIAOFANGDAQIDEZUOYONGXIABIANDA, HOUCHUANSHUDAOCHULIXIANLUXIANSHIHUOZHIXINGJIGOU。

  (4)DIANRONGSHIBIANSONGQI。DIANRONGSHIBIANSONGQIFENDIANDONGHEQIDONGLIANGLEI,QIANZHEDEBIAOZHUNHUASHURUXINHAOWEIZHILIUXINHAO,HOUZHESHUCHUXINHAOWEIQITIYALI。DAICEJIEZHIDELIANGZHONGYALIFENBIESHURUGAO、DILIANGYALISHI,ZUOYONGYUMINGANYUANJIANDELIANGCEGELIMOPIANSHANG。CELIANGMOPIANYULIANGCE YUANPIANSHANGDEDIANJIZUCHENGDIANRONGQI,ZAILIANGCEYALIDAXIAOBUTONGDEQINGKUANGXIA,MOKUAIHUICHANSHENGWEIYI,LIANGCEDIANLIUDAXIAOBUTONG,ZAIZHENDANGHEDIAOJIEZUOYONGXIA,XINGCHENGDIANLIU、DIANYAHUOZHESHUZISHUCHUXINHAO。

2 YALIBIANSONGQIGONGZUOYUANLI

  MOKUAIDIANLU、XIANSHIBIAOTOU、CEYAYUANJIANCHUANGANQI、BIAOQIAODENGGONGTONGZUCHENGLEYALIBIANSONGQI。LAIZILIANGCEDAOYAGUANDEYALICHAHUIZUOYONGZAIBIANSONGQICHUANGANQILIANGCEDEMOPIANSHANG,CELIANGYUANJIANNENGGOUJIANGJIESHOUDEYALIXINHAOZHUANBIANCHENGBIAOZHUNDEDIANLIUDIANYAXINHAO,BINGJIANGXINHAOFASONGZHIBAOJINGYI、JILUYIHEDIAOJIEQI,JINERDUIQIJINXINGERCICELIANG。

3、YALIBIANSONGQIDECHANGJIANGUZHANG

  YALIBIANSONGQIZAISHIYONGGUOCHENGZHONGNANMIANCHUXIANGEZHONGGEYANGDEGUZHANG,QIYINGXIANGYINSUZHONGDUO,LIRUYALIBIANSONGQINEIGEPIANYUCHUANGANYUANJIANJIANCUNZAIGUANCHONGYELOU,LINGDIANHELIANGCHENGPIANYI、SHUCHUBUWENDINGDENGDOUHUIDAOZHIYALIBIANSONGQIJINGDUXIAJIANGSHENZHIFASHENGSUNHUAI;TIANQIYINSUYEHUIDUIBIANSONGQIZAOCHENGYINGXIANG,RULEIJIHUISUNHUAIBIANSONGQIMOHEDEDIANLU、DAOZHIWUFATONGXUN;CHAOSHIDEHUANJINGHUISUNHUAIXIANLU;BIANSONGQILIANGCHENGXUANZEBUHELIHUIZAOCHENGGANYAYUANJIANBUKENIDEBIANXING。YIXIAJIESHAOJIZHONGCHANGJIANDEGUZHANGLEIXING:

  (1)XIANLUGUZHANG。DANGCHUXIANXIANLUGUZHANGSHI,JISUANJIXIANSHISHUZHICHUXIANYICHANG,JIANGBIANSONGQIJIEXIANHEDAKAI,JIANCHAXIANLUSHIFOUCUNZAIXUJIE、DUANJIEHUOZHEDUANJIEDEXIANXIANG,ZAICAIYONGCEDIANYUAN、YAO YUANYIJILIANGDIANZUDENGFANGFAPAICHAGUZHANG。

  (2)BIANPINGANRAO。ZAIJINXINGBUXIANSHI,DUOZHONGXINHAOXIANZHIJIANHUXIANGGANRAO,YOUQISHIZAIDONGLIXIANYUXINHAOXIANCHUANZAITONGYIGUANDAOZHONGCHANSHENGDEGANRAOZUOYONGGENGWEIYANZHONG,CIZHONGQINGKUANGXIAHUIDAOZHIBIANSONGQIBUTONGXUNSHENZHIZHISHICUOWU。KEYITONGGUOZENGDAYIBIAODIANLANYUDONGLIDIANLANCAOJIAJULIDEFANGSHILAIBIMIANCILEICUOWUCAOZUO。

  (3)YINYAGUANGUZHANG。YINYAGUANGUZHANGTONGCHANGYOUYINYAGUANDUSAI、YINYAGUANLOUQI、YINYAGUANJIYESANZHONGGUZHANGLEIXING,YINYADUSAIYIBANSHIYOUPAIFANGBUJISHIHUOZHEJIEZHIZANG、ZHANDENGDAOZHIDE;YINYAGUANLOUQISHIYOUBIANSONGQIJIEDIAN、JIEZHIFADENGFUJIANJIAODUO,ZENGJIALEXIELUDIAN;YINYAGUANJIYETONGCHANGSHIYOUYUQITIQUYAFANGSHIBUHELIHUOZHEYINYAGUANANZHUANGCUOWUZAOCHENGDE,YINYAGUANJIYEHUIYINGXIANGCELIANGJINGDU。

  (4)DIANXINHAOCHUANSHUGUZHANG。YALIBIANSONGQIRUOSHIYONGHUOWEIHUBUDANGJIYIDAOZHIDIANXINHAODECHUANSHUGUZHANG,LIRUWEILEJIESHENGSHIJIANJIANGBIANSONGQIFANGZAIBEICESHEBEIFUJIN,DAOZHIXINHAOCHUANSHUJULIGUOYUAN,XINHAOJIUHUICHUXIANGANRAOHUOSHUAIJIANXIANXIANG,CISHIYAOGENJUXUYAOZENGJIADIANLANXIANDEJIEMIANJI。

4 YALIBIANSONGQIGUZHANGCHULI

4.1 SHUCHUXINHAOWEILING

  DANGYALIBIANSONGQICHUXIANYALIWEILINGDEXIANXIANGSHI,KEYICONGYIXIAJIGEFANGMIANJINXINGCHULI: XIANJIANCHAGUANDAONEISHIFOUCUNZAIYALI,YIBIAOSHIFOUZHENGCHANGGONGDIAN,ZHIHOUJIANCHASHIFOUCUNZAIDIANYUANJIXINGJIEFANDEXIANXIANG, HOUJIANCHADIANZIXIANLUBAN、GANYAMOTOU、BIANSONGQIDIANYUANDIANYADENG。

4.2 JIAYALIWUFANYING

  RUOJIAYALIWUFANYINGZEYAOJIANCHAQUYAGUANDEFAMENSHIFOUZHENGCHANG,BIANSONGQIBAOHUGONGNENGTIAOXIANKAIGUANSHIFOUZHENGCHANG,QUYAGUANSHIFOUDUSAI,JIANCHABAISONGQILINGDIANHELIANGCHENG,GENGHUANCHUANGANMOTOUDENG。

4.3 YALIBIANLIANGDUSHUPIANCHA

  YALIBIANSONGQICHUXIANYALIDUSHUMINGXIANPIANGAOHUOPIANDIDEXIANXIANGSHI, XIANJIANCHAQUYAGUANLUSHIFOUCUNZAIXIELOUXIANXIANG,ZAIJIANCHAQUYAGUANSHANGDEFAMEN,DUICHUANGANQIJINXINGWEIDIAO,RUOHAICUNZAIWENTI,GENGHUANXINDECHUANGANMOTOU。

4.4 YALIBIANLIANGDUSHUBUWENDING

  GAIWENTIKETONGGUOGELIWAIJIEGANRAOYUAN、JIANCHADAOYAGUANSHIFOUXIELOU、GUANDAOSHIFOUCUNZAIZAWU、JIANCHAGELIMOPIANSHIHOUCHUXIANFUSHIHUOBIANXING、JIANCHAGANYAMOTOUDENGFANGFALAIPAICHA。

5 JIEYU

  目前压力传感器的使用十分广泛,无论是国产变送器还是进口变送器,在使用过程中由于工作环境、人为操作不当或者自身原因都会出现各种故障,因此我们不仅要按照说明书的标准规范进行操作,还要掌握正确的故障判断、养护和维修知识,这样才能保证压力传感器的使用寿命和测量精度。

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