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紧急切断阀哪家强?请到上兆阀门来选型。   发布时间:18-09-02


紧急切断阀,紧急切断阀包括(液动紧急切断阀、气动紧急切断阀、电磁动紧急切断阀、电液联动紧急切断阀)。涉及到液化石油气、液氨、天然气、煤气、氧气、氮气、LNG和CNG等气体管道上的一种安全装置。


JINJIQIEDUANFAYUANLI:

紧急切断阀为一种截止式阀体或球形阀体结构,无论是任何动力源组成的紧急切断阀都应该在3秒之内完全切断。紧急切断阀采用的是单作用形式,利用弹簧或其他方式能够迅速的关闭起到紧急切断作用。下面举例气动紧急切断阀和液动紧急切断阀的工作原理

一、液动紧急切断阀工作原理:

QDY421FYEDONGJINJIQIEDUANFA,YEDONGQIEDUANFAJIEHELEJIEZHIFA,ZHIHUIFAHEYEDONGFAMENDEYOUDIAN,CAIYONGJIEZHIFADESHENGJIANGJIEGOUHEZHIHUIFAFANGZHIJIEZHIDAOLIUDEYUANLI。QIEDUANFAJUYOUJISHUXINGNENG,DIFUHESUNSHIHEGAOKEKAOXING,YUYUANJULISHOUYAOYOUBENGPEITAOSHIYONG,LIYONGSHOUDONGYEYAKONGZHIFAMENKAIQI-GUANBI。

QIEDUANFAANZHUANGZAIYEAN,RANQICHUGUANZHANHUOZHEQITIGUANDAOSHANG,YIBIANZAIGUANDAOHUOCHUGUANSHANGFASHENGXIELOUSHENZHIQIHUOSHI,GONGZUORENYUANNENGTONGGUOYUANJULIYOUBENGXIEYA,HUO80℃GAOWENSHI(YIRONGHEJIN)RONGHUA,FAMENYOUGANGZIDONGXIEYA,FAMENXUNSUGUANBIERZHILOU。QIDAOBAOHURENSHENANQUANZUOYONG,QIEDUANFASHIMUQIANHUAGONGWEIXIANPINJIELIUBIJIAOLIXIANGXUANZEDECHANPIN。

1、FAMENZAIWUWAIYALICAOZUOQINGKUANGXIA,FABANCHUYUCHANGBIZHUANGTAI,ZAIZHUGUANXITONGSHANGSHIYONGSHI,JINJIQIEDUANFAYUYOUBENGHUOZHUQIPINGPEITAOSHIYONG,KAOSHOUYAOYOUHUOANQIDEYALIJIANGFAMENDAKAI,ZAIYOULUHUOZHEQIDEYALISHIYONGXIAFAMENCHUYUKAIQIZHUANGTAI,DANGXUYAOGUANBIFAMENHUOYUDAOYOUJINJIQINGKUANGSHI,KEJIANGYOUYAHUOZHEANQIYALIXIEDIAO,FAMENJIZIDONGGUANBI。

2、FABANGUANBISHI,YALISHIYIKAODAKAIXIEYAFAHUOCAOZUOSHOULUNHUOZHEGUANLUSHANGDEYIRONGSAIZAIWENDUSHENGGAOSHIZIXINGRONGHUALAISHIXIAN。

3、FAMENGONGZUOJIEZHIDELIUDONGFANGXIANGYINGSHIGAOJINDICHU,YUPUTONGJIEZHIFALIUXIANGZHENGHAOXIAFAN。

 4、FAMENFALANDELIANJIECHICUNANJB/T79.1-94《TUMIANZHENGTIZHUGANGFALAN》HUOHG20592-97CHICUNBIAOZHUN。

二、气动紧急切断阀原理:

QDQ421FQIDONGJINJIQIEDUANFAFENWEICHANGKAISHIHEWEICHANGBISHI,ANZHUANGZAIYEAN,RANQICHUGUAN/GUANDAOCHUKOUCHUJINJISHINENGGOUKUAISUQIEDUANDEFAMEN,LIYONGDIANCIFALAIKONGZHIFAMENDEKAIQI-GUANBI。GUANGFANYONGYURANQI,ANQIHUORUOFUSHIXINGQITIZHUGUANDEANQUANBAOHUFAMEN。

QIDONGJINJIQIEDUANFAYOUDUODANHUANGQIDONGBOMOZHIXINGJIGOUHUOFUDONGSHIHUOSAIZHIXINGJIGOUYUDIAOJIEFAZUCHENG,DIANCIFAXIANQUANKEJIESHOUXIELUYIQIDEXINHAO,KONGZHIGONGYIGUANDAONEILIUTIDEQIEDUAN、JIETONGHUOQIEHUAN。QIEDUANFANEIJIEGOUZHUANGYOUDIRONGDIAN(YIRONGHEJIN)DESAIZI,ZAICHUXIANSHIGUSHIYINWENDUSHENGZENGGAOYIRONGHUAXIEYALAIXUNSUGUANBIZHUGUANDECHURUKOULAIBAOZHENGZHUGUANXITONGDEANQUAN。QIGANGKAIQIYALIWEI≥0.3-0.6Mpa,QIGANGDERICHANGGONGZUOYALI,BUDEDIYU0.4MPa,BAOZHENGFAMENDEZHENGCHANGGONGZUO。

CHANGKAIXINGQIDONGJINJIQIEDUANFA;JUYOUJIJIADEJISHUXINGNENG,DIFUHESUNSHIHEGAOKEKAOXING,YUYUANJULIQIYUANPEITAOSHIYONG,LIYONGQIYUANKONGZHIFAMENDEGUANBI,YIBIANZAIGUANDAOHUOCHUGUANSHANGFASHENGYIWAIQINGKUANGSHI,GONGZUORENYUANXUNSUTONGGUOKONGZHISHICHUDONGKAIGUAN,DIANCIFASHUNJIANTONGDIAN,QIYUANKUAISUTONGGUOGUANBIQIEDUANFA。


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