欧洲杯比分

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污水流量计的正确选型
发布时间:2019-08-11   点击次数:184次

污水流量测量专家为您正确选型
 

1.电磁流量计选型设计

DIANCILIULIANGJIZI20SHIJI50NIANDAIMOGUONEIGONGYEYINGYONGYILAI,QIBASHINIANDAIZAILIULIANGCELIANGZHONGYUNYONGHEFAZHANHENKUAI。DIANCILIULIANGJIDEGONGZUOYUANLISHIJIYUFALADIDIANCIGANYINGDINGLV,JIBEICEJIEZHICHUIZHIYUCILIXIANFANGXIANGLIUDONG,YINERZAIYUJIEZHILIUDONGHECILIXIANDOUCHUIZHIDEFANGXIANGSHANGCHANSHENGYIGANYINGDIANDONGSHIEXGANYINGDIANDONGSHIEXYUBEICEJIEZHILIULIANG(LIUSU)CHENGZHENGBI,DIANCILIULIANGJIBUSHOUWENDU、YALI、ZHANDU、ZHONGDUDENGWAIJIEYINSUDEYINGXIANG,CELIANGGUANNEIBUWUSHOUSUOHUOTUCHUBUFENDEYALISUNSHI,LINGWAI,LIULIANGYUANJIANJIANCECHUDEzuiCHUXINHAO,SHIYIGEYULIUTIPINGJUNLIUSUCHENGXIANXINGBIANHUADEDIANYA,TAYULIUTIDEQITAXINGZHIWUGUAN,JUYOUHENDADEYOUYUEXING。

根据污水具有流量变化大、含杂质、腐蚀性小、有一定的导电能力等特性,测量污水的流量,电磁流量计是一个很好的选择。它结构紧凑、体积小,安装、操作、维护方便,如测量系统采用智能化设计,整体密封加强,能在较恶劣的环境下正常工作。可选用氯丁橡胶衬里,含钼不锈钢(OCrI8Ni12Mo2Ti)电极的电磁流量计,即可满足污水流量测量的要求。

MOUYELIANCHANGZAISHENGCHANZHONG,YOUYUSHENGCHANGONGYIDEXUYAO,HUICHANSHENGDALIANGDEGONGYEWUSHUI,WUSHUICHULIFENCHANGBIXUDUIWUSHUIDELIULIANGJINXINGJIANKONG。ZAIYIWANGDESHEJIZHONG,LIULIANGYIBIAOBUSHAODOUXUANYONGXUANWOLIULIANGJIHEKONGBANLIULIANGJI。ERSHIJIYINGYONGZHONGFAXIANCELIANGDELIULIANGXIANSHIZHIYUSHIJILIULIANGPIANCHAJIAODA,ERGAIYONGDIANCILIULIANGJIPIANCHADADAJIANXIAO。

欧洲杯比分2.WOJIELIULIANGJIXUANXINGSHEJI

欧洲杯比分WOJIELIULIANGJIZUOWEIYIZHONGXINXINGLIULIANGJI,80NIANDAIZHONGQIYILAIFAZHANJIAOKUAI,TAZAILIULIANGCELIANGFANGMIANYOUZHEZHUDUODEYOUDIANHEZHANGCHU,ZAIXIANDAILIULIANGCELIANGZHONGYINGYONGYUELAIYUEGUANGFAN。ZAIGUONEISHIYONGWOJIELIULIANGJIJINXINGLIULIANGCELIANGYEYULAIYUDEDAOZHONGSHI,MUQIANWOGUOYIYOUXINGNENGYOULIANGBINGYOUZIZHUZHISHICHANQUANDECHANPINXILIE。WOJIELIULIANGJISHIJIYULIUTIZHENDONGFAZHANQILAIDE,GENJUXUANWODEBUTONG,JIANCEFANGSHICONGRESISHI、REMINSHIZHUJIANFAZHANLEYINGLISHI、CIMINSHIJICHADONGKAIGUANDIANRONGSHI、CHAOSHENGBOSHIDENG。WOJIELIULIANGJIJIHUKEYONGYUYIQIEKEXINGCHENGXUANWOLIEDECHANGHE,BUJINKEYONGYUFENGBIDEGUANDAO,HAIKEYONGYUKAIFANGDEGOUCAO。YUWOLUNLIULIANGJIXIANGBI,WOJIELIULIANGJIMEIYOUKEDONGDEJIXIEBUJIAN,WEIHUGONGZUOLIANGXIAO,YIBIAOCHANGSHUWENDING;YUKONGBANSHILIULIANGJIXIANGBI,WOJIELIULIANGJICELIANGFANWEIDA,YALISUNSHIXIAO,ZHUNQUEDUGAO,ANZHUANGYUWEIHUJIANDAN。DANWOJIELIULIANGJIDEHUANJINGXIANGGUANCANSHUJIAODUO,RONGYIZAISHIYONGXIANCHANGBEIHULVEERYINGXIANGLIULIANGJIXINGNENGDEZHENGQUEFAHUI。

涡街流量计欧洲杯比分的原理是在流量计管道中,设置一滞流件,当流体流经滞流件时,由于滞流件表面的滞流作用等原因,在其下游会产生两列不对称的旋涡,这些旋涡在滞流件的侧后方分开,形成所谓的卡门(Karman)旋涡列,两列旋涡的旋转方向是相反的,卡门从理论上证明了当h/L=0.281(h为两旋涡列之间的宽度,L为两个相邻旋涡间的距离)时,旋涡列是稳定的雷诺数Re是表征粘性流体流动特性的一个无量纲数,其物理意义是流体流动的惯性力与粘滞力的比值。因此,流体的流动状态对涡街流量计的使用也有一定的影响。如果环境参数对流体流动状态有影响也会影响到涡街流量计的使用性能。

欧洲杯比分JINGGUOSHIJIAN,RUXIAJIGEFANGMIANDUIWOJIELIULIANGJIDESHIYONGDOUYOUYINGXIANG,YINGDUIZHEIXIEWENTIJINXINGFENXI。

(1)WOJIELIULIANGJIDECELIANGFANWEIJIAODA,YIBAN10:1,DANCELIANGXIAXIANSHOUXUDUOYINSUXIANZHI:Re>10000SHIWOJIELIULIANGJIGONGZUODEzuiJIBENTIAOJIAN,CHUCIYIWAI,TAHAISHOUXUANWONENGLIANGDEXIANZHI,JIEZHILIUSUJIAODI,ZEXUANWODEQIANGDU、XUANZHUANSUDUYEDI,NANYIYINQICHUANGANYUANJIANCHANSHENGXIANGYINGXINHAO,XUANWOPINLVfYEXIAO,HAIHUISHIXINHAOCHULIFASHENGKUNNAN。CELIANGSHANGXIANZESHOUCHUANGANQIDEPINLVXIANGYING(RUCIMINSHIYIBANBUCHAOGUO400Hz)HEDIANLUDEPINLVXIANZHI,YINCISHEJISHIYIDINGYAODUILIUSUFANWEIJINXINGJISUAN、HESUAN,GENJULIUTIDELIUSUJINXINGXUANZE。SHIYONGXIANCHANGHUANJINGTIAOJIANFUZA,XUANXINGSHICHUZHUYIHUANJINGWENDU、SHIDU、QIFENDENGTIAOJIANWAI,HAIYAOKAOLVDIANCIGANRAO。ZAIQIANGGANRAORUGAOYASHUDIANDIANZHAN、DAXINGZHENGLIUSUODENGCHANGHE,CIMINSHI、YADIANYINGLISHIDENGYIBIAOBUNENGZHENGCHANGGONGZUOHUOBUNENGZHUNQUECELIANG。

欧洲杯比分(2)ZHENDONGYESHIGAILEIYIBIAODEYIDAJINGDI。YINCIZAISHIYONGSHIZHUYIBIMIANJIXIEZHENDONG,YOUQISHIGUANDAODEHENGXIANGZHENDONG(CHUIZHIYUGUANDAOZHOUXIANYOUCHUIZHIXUANWOFASHENGTIZHOUXIANDEZHENDONG),ZHEIZHONGYINGXIANGZAILIULIANGJIJIEGOUSHEJISHANGSHIWUFAYIZHIHEXIAOCHUDE。YOUYUWOJIEXINHAODUILIUCHANGYINGXIANGTONGYANGMINGAN,GUZHIGUANDUANZHANGDUBUNENGBAOZHENGWENDINGWOJIESUOBIYAODELIUDONGTIAOJIANSHI,SHIBUYIXUANYONGDE。JISHISHIKANGZHENXINGJIAOQIANGDEDIANRONGSHI、CHAOSHENGBOSHI,BAOZHENGLIUTIWEICHONGFENFAZHANDEDANXIANGLIU,YESHIBUKEHULVEDE。

(3)JIEZHIWENDUDUIWOJIELIULIANGJIDESHIYONGXINGNENGYEYOUHENDADEYINGXIANG。RUYALIYINGLISHIWOJIELIULIANGJIBUNENGZHANGQISHIYONGZAI300℃ZHUANGTAIXIA,YINQIJUEYUANZUKANGHUIYOUCHANGWENXIADE10MΩ~100MΩJIJIANGZHI1MΩ~10KΩ,SHUCHUXINHAOYEBIANXIAO,DAOZHICELIANGTEXINGEHUA,DUICIYIXUANYONGCIMINSHIHUODIANRONGSHIJIEGOU。ZAICELIANGXITONGZHONG,CHUANGANQIYUZHUANHUANQIYICAIYONGFENLIANZHUANGFANGSHI,YIMIANZHANGQIGAOWENYINGXIANGYIBIAOKEKAOXINGHESHIYONGSHOUMING。

涡街流量计是一种比较新型的流量计,处于发展阶段,还不很成熟,如果选择不当,性能也不能很好发挥。只有经过合理选型、正确安装后,还需要在使用过程中认真定期维护,不断积累经验,提高对系统故障的预见性以及判断、处理问题的能力,从而达到令人满意的效果。

3.JIELIUSHILIULIANGJIXUANXINGSHEJI

欧洲杯比分JIELIUSHILIULIANGJISHIZAOQIDALIANGSHIYONGDEYIZHONGCELIANGLIULIANGDEJILIANGZHUANGZHI,QILISHIzuiZHANG,YONGLIANGzuiDUO。XIANZAICHANGJIANDEWEIYUANKONGBANXINGHEZHUIXINGRUKOUBANXING,QIGONGZUOYUANLISHIZAILIUTIGUANDAOZHONGJIARUYIKONGBANJIELIUJIAN,TONGGUODAOYAGUANYINRUYACHABIANSONGQICECHUJIELIUJIANSHANG、XIAYOUDEYACHA,GENJUSUOCEDEYACHAJINGGUOJISUANJIDECHULIULIANGDESHUNSHIZHI。YOUYUDAOYAGUANNEISHUIDEBULIUDONGXING,ZAIJIAOHANLENGDIQU,DONGTIANSHIWAIANZHUANGDEKONGBANQUYAGUANRONGYIDONGLIE(DONGZHU),SHICHAYAYIQIWUFAZHENGCHANGGONGZUO。CELIANGJIAOZANGDEWUSHUISHI,KONGBANXUJINGCHANGQINGXI。RUQINGXIBUJISHI,CELIANGJINGDUJIANGDI,QUYAGUANJINGCHANGBEIWUWUDUSI,YIBIAOWUFASHIYONG。YONGKONGBANDEFANGSHICELIULIANGSHIHAIYOUYALISUNSHIDA、WEIHULIANGDADENGQUEDIAN。YINCIGAIBIANQUYAFANGSHI,LIRUYONGJINGJUQUYAFA,JIUKEYIJIANSHAOKONGBANWUWUDEYINGXIANG。

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