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安全阀的工作原理?
发布时间:2020-12-02 浏览:21 次

  ANQUANFASHIGUOLU、YALIRONGQIHEYALIGUANDAODEBAOHUZHUANGZHI,YONGLAIFANGZHISHOUYASHEBEIZHONGDEYALICHAOGUOSHEJIYUNXUZHI,CONGERBAOHUSHEBEIJIQIYUNXINGRENYUANDEANQUAN。

  YOUYUANQUANFAKEYIBUYILAIRENHEWAIBUNENGYUANERDONGZUO,SUOYICHANGCHANGZUOWEISHOUYASHEBEIDEZUIHOUYIDAOBAOHUZHUANGZHI。CONGZHEIGEYIYISHANGSHUO,TADEZUOYONGSHIBUNENGYONGQITABAOHUZHUANGZHILAIDAITIDE。

  DANGSHOUYASHEBEIZHONGJIEZHIDEYALIYOUYUMOUZHONGYUANYINERYICHANGSHENGGAO,DADAOYUXIANDESHEDINGZHISHI,ANQUANFAZIDONGKAIQI,JIERPAIFANG,YIFANGZHIYALIJIXUSHENGGAO。DANGJIEZHIYALIYOUYUANQUANFADEPAIFANGERJIANGDI,DADAOLINGYIYUDINGZHISHI,FAMENYOUZIDONGGUANBI,ZUZHIJIEZHIJIXUPAICHU。DANGJIEZHIYALICHUYUZHENGCHANGGONGZUOYALISHI,FAMENBAOCHIGUANBIHEMIFENGZHUANGTAI。

  YIXIAFENBIEYIDANHUANGZHIJIEZAIHESHIANQUANFAHEXIANDAOSHIANQUANFAWEILI,JINYIBUSHUOMINGANQUANFADEDONGZUOYUANLI。

  TU1SUOSHIWEICHANGGUIDANHUANGZAIHESHIQITIANQUANFADEDONGZUOYUANLISHIYI,QIDONGZUOJIYULIDEPINGHENG。ZAIZHENGCHANGCAOZUOTIAOJIANXIA,JINKOUYALIDIYUZHENGDINGYALI,FABANZAIDANHUANGLIZUOYONGXIAYAZAIFAZUOSHANGCHUYUGUANBIWEIZHI,FAMENCHUYUGUANBI(MIFENG)ZHUANGTAI[TU1(a)]。

  

气体安全阀的工作原理

 

  TU1 QITIANQUANFADEGONGZUOYUANLI

  CISHIZUOYONGZAIFABANSHANGDEDANHUANGLIFWEI

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  FABANZAIFAZUOMIFENGMIANSHANGDEYAJINLIFs,BAOZHENGLESUOXUDEMIFENGXING。

  ZAIZHENGCHANGGONGZUOSHI,ANQUANFACHUYUGUANBIZHUANGTAI,ANQUANFAFABANZAIXITONGYALIDEZUOYONGXIAXIANGSHANGDEZUOYONGLIXIAOYUFABANSHOUDAOXIANGXIADEDANHUANGLI,QICHAZHIJIUSHIMIFENGFUJIALIFs,JISUIZHEXITONGYALIDEZENGJIA,ANQUANFADEMIFENGBIYASHIZHUJIANJIANGDIDE。

  DANGXITONGJINKOUYALIDENGYUANQUANFADEZHENGDINGYALISHI,DANHUANGLIDENGYUJINKOUJIEZHIZUOYONGZAIGUANBIFABANSHANGDELI,FABANYUFAZUOZHIJIANDEZUOYONGLIDENGYULING。DANGJINKOUYALILVEGAOYUZHENGDINGYALISHI,JIEZHILIUGUOFAZUOBIAOMIANJINRUXUYAQIANG“B”,YOUYUFANCHONGPANYUDIAOJIEQUANJIANJIELIUZUOYONGDEJIEGUO,XUYAQIANG“B”NEIDEYALIZENGJIA[TU1(b)],YINWEIZHEISHIJINKOUYALIZUOYONGZAIGENGDADEMIANJISHANG,CHANSHENGYIGETONGCHANGBEICHENGWEIPENGZHANGLIDEFUJIALILAIKEFUDANHUANGLI。TONGGUODIAOZHENGDIAOJIEQUAN,BIANKEYIDIAOJIEHUANXINGLIUDAOFENGXIDEDAXIAO,CONGERKONGZHIXUYAQIANG“B”NEIDEYALI,ZHEISHIXUYAQIANGNEIBEIKONGZHIDEYALIJIANGKEFUDANHUANGLI,DAOZHIFABANLIKAIFAZUO,FAMENTUTIAOKAIQI。

  YIDANFAMENYIJINGKAIQI,“C”CHUBIANHUICHANSHENGFUJIAZENGYA[TU1(c)],ZHEISHIYOUYUTURANLIULIANGDEZENGJIAYIJIYOUFANCHONGPANQUNBIANDENEIYANYUDIAOJIEQUANWAIJINGSUOWEICHENGDELINGYIGEHUANXINGLIUDAOSHANGDEJIELIUSUOZAOCHENGDE,ZHEIXIE“C”CHUDEFUJIALI(HANFANCHONGLI)HUIDAOZHIFABANZAITUTIAOSHIDADAOZUGOUDEKAIQIGAODU。

  LIULIANGSHIZHONGBEIFAZUOYUFABANJIANDEKAIDUXIANZHIZHE,ZHIDAOFABANLIFAZUODEKAIQIGAODUJIEJIN1/4HOUJING。DANGFABANDADAOZHEIZHONGCHENGDUDEKAIQIGAODUYIHOU,LIULIANGBIANYOUHOUBULIUDAOMIANJIKONGZHIERBUSHIYOUFAZUOBIAOMIANJIANDEMIANJI(LIANMIANJI)KONGZHI。

  DANGJINKOUYALIYIJINGJIANGDAODIYUZHENGDINGYALIZUGOUDUO,YIZHIDANHUANGLIZUYIKEFU“A”,“B”,“C”SANCHULIZHIHESHI,FAMENGUANBI。

  TU2BIAOSHIDESHIFABANCONGZHENGDINGYALI(TUZHONGADIAN)

  

安全阀阀瓣开启高度与被保护系统压力间的典型关系

 

  TU2 ANQUANFAFABANKAIQIGAODUYUBEIBAOHUXITONGYALIJIANDEDIANXINGGUANXI

  JINGLICHAOYAJIEDUANDAODAZUIDAXIEFANGYALI(BDIAN),JINGLIQIBIYACHAJIEDUANHUIDAOHUIZUOYALI(CDIAN)DEQUANBUXINGCHENG。

  YETIJIEZHIYONGANQUANFABUHUIXIANGQITIJIEZHIYONGANQUANFANEIYANGTUTIAO(TU3),YINWEIYETILIUDONGBUCHANSHENGXIANGQITIJIEZHILIUDONGNEIYANGDEPENGZHANGLI。YETIJIEZHIYONGANQUANFABIXUYIKAOFANZUOYONGLILAIDADAOKAIQIGAODU。

  

液体安全阀的丁作原理示意

 

  TU3 YETIANQUANFADEDINGZUOYUANLISHIYI

  DANGFAMENGUANBISHI,ZUOYONGZAIFABANSHANGDELIYUYINGYONGYUQITIJIEZHIZHONGDEZUOYONGLISHIXIANGTONGDE,ZHIDAODADAOLIDEPINGHENG,JIBAOCHIFAZUOGUANBIDEHELIJIEJINLING。

  ZAIZUICHUKAIQISHI,YICHUDEYETIXINGCHENGYICENGFEICHANGBODELIUTI,JIANTU3(a),ZAIFAZUOBIAOMIANJIANXUNSUKUOZHAN,YETICHONGJIFABANFANCHONGPANDEFANZUOYONGMIAN,BINGBEIZHELIUXIANGXIA,CHANSHENGXIANGSHANGTUIDONGFABANHEFANCHONGPANDEFANZUOYONGLI。ZAIZUICHUDE2%~4%DECHAOGUOYALIFANWEINEI,ZHEIXIELITONGCHANGJIANLIDEHENMAN。

  SUIZHELIULIANGZHUJIANZENGJIA,LIUGUOFAZUODEYETIDESUDUYEZAIZENGJIA,ZHEIXIEDONGLIANGZUOYONGLIYUKUAISUXIEFANGDEYETIJIEZHIYOUYUCONGFANZUOYONGBIAOMIAN[TU3(b)]BEIZHELIUXIANGXIASUOCHANSHENGDEZUOYONGLIDEHELIZUYISHIFAMENDADAOQUANKAI。TONGCHANGQINGKUANGXIA,ZAI2%~6%DECHAOGUOYALIXIA,FABANHUITURANJIANSHENGGAODAO50%~100%DEQUANKAIGAO,SUIZHECHAOGUOYALIZENGJIA,ZHEIXIELIJIXUZENGJIA,TUIDONGFABANDADAOQUANKAI。ASMEJIANDINGDEYETIJIEZHIYONGANQUANFADEPAIFANGLIANG,YAOQIUANQUANFAZAI10%HUOGENGXIAODECHAOGUOYALIXIA,DADAOQUANBUDEEDINGXIEFANGLIANG。

  ZAIFAMENGUANBIDEGUOCHENGZHONG,SUIZHECHAOGUOYALIJIANXIAO,YETIJIEZHIDONGLIANGHEFANZUOYONGDOUJIANXIAO,DANHUANGLITUIDONGFABANFANHUIYUFAZUOJIECHU。

  GUOQU,XUDUOYONGZAIYETIJIEZHIZHONGDEXIEYAFADOUSHIWEIKEYASUO(ZHENGQI)JIEZHISHEJIYONGDEANQUANXIEFANGFAHUOXIEFANGFA。XUDUOZHEIYANGDEFAMENDANGYONGZAIYETIJIEZHISHI,XUYAOGAODECHAOGUOYALI(25%)CAINENGDADAOQUANKAIGAOHEWENDINGDEGONGZUO,ZHEISHIYINWEIYETIJIEZHIWUFATIGONGQITIJIEZHINEIYANGDEPENGZHANGLI。

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  TU4SHIXIANDAOSHIANQUANFADEGONGZUOYUANLITU,XIANDAOSHIANQUANFAYOUZHUFAHEDAOFAZUCHENG,DAOFASUIXITONGJIEZHIYALIDEBIANHUAERDONGZUO,ZHUFAZEYOUDAOFADEQUDONGHUOKONGZHIERDONGZUO。

  

先导式安全阀下作原理

 

  TU4 XIANDAOSHIANQUANFAXIAZUOYUANLI

  DANGBEIBAOHUXITONGCHUYUZHENGCHANGYUNXINGZHUANGKUANGSHI,DAOFAFABANCHUYUGUANBIZHUANGTAI,XITONGYALICONGZHUFAJINKOUTONGGUODAOGUANHEDAOFACHUANRUZHUFAFABAN(HUOSAI)SHANGFANGQISHI。YOUYUHUOSAIMIANJIDAYUFABANMIFENGMIANMIANJI,XITONGYALIDUIFABANCHANSHENGYIGEXIANGXIADEHELI,SHIZHUFACHUYUGUANBI、MIFENGZHUANGTAI。

  DANGXITONGYALISHENGGAODADAOZHENGDINGYALISHI,DAOFAKAIQI,TONGSHIHUAFAXIANGSHANGYIDONGFENGBIDAOFADEJINQITONGDAO。ZHUFAFABANSHANGFANGQISHIDEJIEZHIJINGYOUDAKAIDEDAOFAPAICHU,SHIZHUFAFABANSHANGFANGYALI(QIANGYA)JIANGDI,ZHUFAFABANZAIJINKOUYALIDETUIDONGXIADAKAIERSHIXITONGXIEYA。

  DANGXITONGYALIJIANGDIDAOYIDINGZHISHI,DAOFAHUIZUOBINGDAIDONGDINGGANDINGKAIHUAFA,XITONGYALIZAICITONGGUODAOFACHUANRUZHUFAFABANSHANGFANGQISHI,BINGTUIDONGZHUFAFABANGUANBI。

  TU5SHITUTIAOXINGXIANDAOSHIANQUANFADESHIJICESHIDEYALIGUANXITU。

  

突跳型先导式安全阀实际测试的压力关系

 

  TU5 TUTIAOXINGXIANDAOSHIANQUANFASHIJICESHIDEYALIGUANXI

  BENWENYOUZHENKONGDUMOJICHANGJIAAIJIAZHENKONGSHOUJIZIZHENKONGJISHUWANG,JINGONGXUEXIHECANKAO,BANQUANGUIQISUOYOU!