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涡轮流量计干扰问题的试验与解决办法


文章日期:2019-04-06|阅读数:次


YI、YANJIUMUDE

WEIPINGGUJIELIUJIANGANRAODUILIULIANGJIDEYINGXIANG,WOMENMONIGEZHONGXIANCHANGANZHUANGTIAOJIAN,TONGGUOSHIYANQUERENWOLUNLIULIANGJISHEJIYAOQIU,WEIGENGHAOXUANYONGWOLUNLIULIANGJITIGONGBANGZHU。

ER、SHIYANFANGAN

1. QIANQIZHUNBEI:ZHUNBEISHIYANYANGJIHESHEBEI,DIAOSHISHIYANYONGQITILIULIANGBIAOZHUNZHUANGZHI,YUBEIGELEIJIELIUJIAN,RUBUTONGZHANGDUDEZHIGUANDUAN(0D、2D、10D、20D) 、WANTOU、SANTONG、BIANJING、FAMEN、GUOLVQIDENG。

2. SHIYANYANGJI:DN80 QITIWOLUNLIULIANGJI,2 TAI,ZHUNQUEDUDENGJI 1.5 JI,LIULIANGFANWEI(8~160)m 3 /h。

3. SHIYANSHEBEI:BIAOZHUNBIAOFAQITILIULIANGBIAOZHUNZHUANGZHI;ZHUANGZHIBUQUEDINGDU U rel =0.3%(k=2) ,LIULIANGFANWEI:(5~4000)m 3 /h。

4. SHIYANFANGFA:LIYONGBIAOZHUNBIAOFAQITILIULIANGBIAOZHUNZHUANGZHIJINXINGCHUSHIJILIANGTEXINGCESHI,RANHOUJINXINGGELEIHOUXUGANRAOCESHI,LIULIANGDIAN q min 、0.2q max 、0.4q max 、0.7q max HE q max ,CESHICISHU 3 CI。

5. SHIYANYIJU:GB/T18940-2003《FENGBIGUANDAOZHONGQITILIULIANGDECELIANG WOLUNLIULIANGJI》、GB/T28848-2012《ZHINENGQITILIULIANGJI》、GB/T32201-2015《QITILIULIANGJI》、JJG1037-2008《WOLUNLIULIANGJIJIANDINGGUICHENG》。

6.SHIYANXIANGMU:GENJUGB/T28848-2012FULUEYAOQIU,LIULIANGGANRAOSHIYANKEFENWEIQINGDUGANRAOYINGXIANGSHIYANHEYANZHONGGANRAOYINGXIANGSHIYAN,CESHILIULIANGDIANZENGJIAWEI 5 GEDIAN。

(1)QINGDUGANRAOYINGXIANGSHIYAN:BAOKUOQIANZHIGUANDUANBUZU、QIANHOUWANGUAN、SHOUSUOHEKUOZHANGGUANJINGZHILIANDENG。

排列三和值走势图 (2)YANZHONGGANRAOYINGXIANGSHIYAN:BAOKUOGUOLVQI、DIAOYAQIHUOQITAJIELIUZHUANGZHIZHILIANBIAOJU、BANKAIFAMENDENG。

SAN、SHIYANGUOCHENG

1. CHUSHIJILIANGTEXINGCESHI

排列三和值走势图 GENJU GB/T18940-2003 FULU E DEYAOQIU,YANGJIBIAOTIQUYA,ZAIBIAOZHUNBIAOFALIULIANGBIAOZHUNZHUANGZHISHANGXUANQU 5 GELIULIANGDIANDUIYANGJIJINXINGJIBENJILIANGTEXINGCESHI,MEIGELIULIANGDIANCESHI 3 CI,JILUYANGJIYALI、YIBIAOXISHU、SHIZHIWUCHAHEZHONGFUXING。

2. QINGDUGANRAOYINGXIANGSHIYAN

排列三和值走势图 CHUSHIJILIANGTEXINGCESHIJIESHUHOU,ZAIXIANGTONGBIAOZHUNZHUANGZHISHANGJINXINGHOUXUGANRAOSHIYAN,SHIYANFANGFAYUCHUSHIJILIANGTEXINGCESHIWANQUANXIANGTONG,DANXUYAOFENBIESHEZHIGEZHONGGANRAOJIELIUJIAN。

排列三和值走势图 (1)QIANZHIGUANDUANYINGXIANG:LIULIANGJIQIANLIANJIEBUTONGZHANGDUZHIGUANDUAN(0D、2D、10D、20D),ZAIXIANGTONGLIULIANGDIANSHANGJINXINGCESHI,JILUYANGJIYALI、YIBIAOXISHU、SHIZHIWUCHAHEZHONGFUXING。

(2)QIANHOUWANGUANYINGXIANG:FENBIEZAILIULIANGJIQIANDUAN、HOUDUAN、QIANHOUDUANLIANJIETONGGUANJINGWANGUAN(PINGMIANWANTOU、LITIWANTOU、SANTONG),ZAIXIANGTONGLIULIANGDIANSHANGJINXINGCESHI,JILUYANGJIYALI、YIBIAOXISHU、SHIZHIWUCHAHEZHONGFUXING。

(3)QIANHOUBIANJINGYINGXIANG:FENBIEZAILIULIANGJIQIANDUAN、HOUDUAN、QIANHOUDUANLIANJIEBIANJING(SUOJING、KUOJING),ZAIXIANGTONGLIULIANGDIANSHANGJINXINGCESHI,JILUYANGJIYALI、YIBIAOXITONG、SHIZHIWUCHAHEZHONGFUXING。

3.YANZHONGGANRAOYINGXIANGSHIYAN

排列三和值走势图 (1)GUOLVQIYINGXIANG:LIULIANGJIQIANZHIJIEANZHUANGGUOLVQI,ZAIXIANGTONGLIULIANGDIANSHANGJINXINGCESHI,JILUYANGJIYALI、YIBIAOXISHU、SHIZHIWUCHAHEZHONGFUXING。

(2)BANKAIFAMENYINGXIANG:LIULIANGJIQIANZHIJIEANZHUANGFAMEN,BANKAIFAMEN,ZAIXIANGTONGLIULIANGDIANSHANGJINXINGCESHI,JILUYANGJIYALI、YIBIAOXISHU、SHIZHIWUCHAHEZHONGFUXING。

SI、SHUJUFENXI

GB/T32201-2015 之 5.13.3 规定,对于准确度易受流体扰动影响的流量计,由流体扰动引起的误差变化不应超过***大允许误差的三分之一,如果此类流量计对安装管段有要求,以改善流体扰动影20190322100501.jpg涡轮流量计干扰影响试验仪表系数特性曲线响,流量计上应有相应的标识,且流量计只能安装在经实验验证准确度等级能满足计量性能要求的管段中。

 

对于准确度等级受流体扰动影响的流量计,应按 GB/T32201-2015 之附录 C的规定进行试验,根据实际情况,我们把半开阀门和前端直连过滤器视企业微信截图_20190322100501.jpg涡轮流量计干扰影响试验仪表系数特性曲线为严重流体扰动,其他视为轻微流体扰动。鉴于涡轮流量计口径较多,且属于相似设计,故试验表选用常规的 DN80G100 规格涡轮流量计,其他规格根据需要再进行试验。

JIANDINGGUOCHENGZHONGSHUJUCHULICAIYONG JJG1037-2008 JINXING。

1.SHIZHIWUCHA

SHIYANYIBIAO DN80G100 WOLUNLIULIANGJI,YIBIAOBIANHAO131222006。JIANDINGJIEGUORUBIAO 1HETU1 SUOSHI。

2. YIBIAOXISHU

排列三和值走势图 SHIYANYIBIAO DN80G100 WOLUNLIULIANGJI,YIBIAOBIANHAO131222006。JIANDINGJIEGUORUBIAO 2 HETU 2 SUOSHI。ANZHAO GB/T32201-2015 DEYAOQIU,BENSHIYANBIAOZAIQINGWEIRAODONGYINGXIANGSHIYANZHONG,ZHIGUANDUANYINGXIANGBUCUNZAI,SHIZHIWUCHABIANHUALIANGJUNWEICHAOGUO 0.5%,FUHEYAOQIU。WANTOU、SANTONG、KUOGUANDUIXIAOLIULIANGDEYINGXIANGCHAOGUO 1.0%,BUFUHEYAOQIU。ZAIYANZHONGGANRAOSHIYANZHONG,BANKAIFAMENYINGXIANG***DA,MEIGELIULIANGDIANDEYINGXIANGLIANGJUNCHAOGUOBIAOZHUNYAOQIU。

3.SHIZHIWUCHA

SHIYANYIBIAO DN80G100 WOLUNLIULIANGJI,YIBIAOBIANHAO131222028。JIANDINGJIEGUORUBIAO 3 HETU 3 SUOSHI。

4. YIBIAOXISHU

试验仪表 DN80G100 涡轮流量计,仪表编号涡轮流量计干扰影响试验示值误差曲线涡轮流量计干扰影响试验示值误差曲线20190322100548涡轮流量计干扰影响试验仪表系数特性曲线排列三和值走势图131222028。检定结果如表 4 和图 4 所示。

KEYIKANCHU,BENSHIYANBIAOZAIQINGWEIRAODONGYINGXIANGSHIYANZHONG,ZHIGUANDUANYINGXIANGBUCUNZAI,SHIZHIWUCHABIANHUALIANGJUNWEICHAOGUO 0.5%,FUHEYAOQIU。BUFENWANTOU、SUOGUANDUIXIAOLIULIANGDEYINGXIANGCHAOGUO1.0%,BUFUHEYAOQIU。

排列三和值走势图 ZAIYANZHONGGANRAOSHIYANZHONG,BANKAIFAMENYINGXIANG***DA,MEIGELIULIANGDIANDEYINGXIANGLIANGJUNCHAOGUOBIAOZHUNYAOQIU。

WU、SHIYANJIELUN

排列三和值走势图 GENJUSHIYANJIEGUOKEYIKANCHU,WOLUNLIULIANGJIDUIYUQINGWEIRAODONGCUNZAIBUFENYINGXIANG,DUIYUYANZHONGGANRAOZHONGDEBANKAIFAMENYINGXIANG***DA,QIESHUYUFUPIANCHA,BUFUHEBIAOZHUNYAOQIU。MUQIANDADUOSHUWOLUNLIULIANGJISHEJIBIAOQIANZHENGLIUQI,DUIYUSHANGYOUZHIGUANDUANYAOQIUKEYIDADAJIANGDI,ANZHAOSHIYONGSHUOMINGSHUYAOQIUDEQIAN 2DN,HOU1DN JIKEMANZUYAOQIU,DANDUIYUQITAQINGWEIRAODONGJIELIUJIANZECUNZAISUIJIXINGYINGXIANG。YINCI,ZAIYIBIAOXUANYONGSHEJISHI,HAISHIYAOBIMIANZUHEJIELIUJIANCHANSHENGDEYINGXIANG,WEICIKENENGXUYAOSHIDANGYANZHANGZHIGUANDUANZHANGDU;DUIYUFAMENHEGUOLVQI,JIANYISHANGYOUANZHUANGSHIYUANLILIULIANGJI,ZHISHAO10DN YISHANG,FAMEN***HAOANZHUANGZAILIULIANGJIXIAYOU。

JIANYUSHIYANBIAOSHULIANGJIAOSHAO,JIANYIZENGJIASHIYANYIBIAOSHULIANGHEPINZHONG,RUZENGJIACHAOSHENGBOLIULIANGJI、YAOLUNLIULIANGJIDENG。SHIYANJIELIUJIANXUYAOANZHAOBIAOZHUNYAOQIUJINXINGJIAGONGZHIZUO,SHISHIYANGENGJIACHONGFEN,SHUJUGENGJIAXIANGSHI,JIEGUOGENGJIAJUYOUSHUOFULI,JIEJIANYIYIGENGQIANG。


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