pk10赛车冠军单双计划

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涡轮流量计高粘度变流速自适应算法


文章日期:2018-12-04|阅读数:


摘要:涡轮流量计应用十分广泛, 但是当被测介质运动粘度较高时, 涡轮流量传感器仪表系数随着流速的增加而变化, 波动较大, 其变化规律呈现非线性。本文研究了口径为DN10的涡轮流量计在流体介质粘度为43.49cSt条件下其仪表系数随流速变化的规律, 通过在可变粘度标准装置进行的实验, 得到实验数据, 拟合出了高粘度涡轮流量计流速修正算法, 运用该算法, 可以将涡轮流量计的仪表系数精度由4.4%提高到0.83%, 并对此算法了进行实验验证, 证明了该算法的有效性。

引言:

  WOLUNLIULIANGJIZAILIULIANGCELIANGLINGYUYOUZHEFEICHANGGUANGFANDEYINGYONG, KEYIYONGYUGONGYEYOUPINCELIANG, MINYONGZILAISHUICELIANGYIJIKEXUEJILIANG[1]。WOLUNLIULIANGCHUANGANQISHUYUSUDUSHILIULIANGJI, TADEGONGZUOYUANLISHILIYONGLIUTILIUDONGSHICHANSHENGDETUILISHIWOLUNLIULIANGJIWOLUNYEPIANZHUANDONG, WOLUNWENDINGZHUANSUHOU, LIUTILIUGUODETIJILIULIANGHEWOLUNDEZHUANSUCHENGZHENGBI, YICILAIJISUANBEICELIUTIDETIJILIULIANG[2]。YIBANDE, WOMENBAWOLUNLIULIANGJIDANWEISHIJIANNEISHUCHUDEMAICHONGGESHUYUSHIJILIUGUOLIULIANGDEBIZHICHENGWEIWOLUNLIULIANGJIDEYIBIAOXISHU。WOLUNLIULIANGCHUANGANQIXUYAOZAITOURUSHIYONGQIAN, ZAIBIAOZHUNJILIANGZHUANGZHISHANGJINXINGBIAODING, JITONGGUOSHIYANJISUANCHUGAIWOLUNLIULIANGCHUANGANQIDEYIBIAOXISHU。YOUCIKEJIAN, WOLUNLIULIANGCHUANGANQIDEYIBIAOXISHUDUZHIJIEYINGXIANGZHE***ZHONGLIULIANGSHUJUCESUANDEDU。

pk10赛车冠军单双计划   DANSHI, JINGGUOGUONEIWAIKEYANRENYUANDEDALIANGSHIYANZHENGMING, BEICELIUTIJIEZHIDEZHANDUDUIWOLUNLIULIANGJICELIANGSHIDEYIBIAOXISHUYOUZHEHENDADEYINGXIANG, DANGBEICEJIEZHIWEISHUIHUOZHEDIZHANDUJIEZHIQIELIULIANGGAOYU0.5L/sSHI, WOLUNLIULIANGJIYIBIAOXISHUJIBENBAOCHIHENGDING, DANDANGBEICEJIEZHIZHANDUSHENGGAO, YIBIAOXISHUHUIYIZHISUIZHEZHANDUDEZENGJIAERZENGJIA, YOUQISHIDANGJIEZHIZHANDUGAOYU50cStSHI, QIXIANXINGFANWEIWANQUANXIAOSHI。ZAISHIJIDELIULIANGCELIANGGUOCHENGDANGZHONG, CELIANGGAOZHANDUYOUPINJIEZHISHI, HENNANBAOZHENGJIEZHILIUSUHENGDING, YIDANCHUXIANLIULIANGBODONG, WOLUNLIULIANGJIJIUHUICHANSHENGJIAODAWUCHA。SUOYI, DUIWOLUNLIULIANGJIZAIGAOZHANDUJIEZHICELIANGSHIBUTONGLIUSUXIADEYIBIAOXISHUJINXINGFENXIYOUFEICHANGZHONGYAODEYIYI。

1、实验装置:

pk10赛车冠军单双计划   WEIYANJIUWOLUNLIULIANGJIZAIGAOZHANDUJIEZHICELIANGSHIBUTONGLIUSUXIAYIBIAOXISHUDEBIANHUAGUILV, SHIYONGZHONGHANGGONGYE4113JILIANGZHANKEBIANZHANDUBIAOZHUNZHUANGZHIJINXINGSHIYAN, GAIZHUANGZHIBEICELIUTIJIEZHIWEI4050HANGKONGRUNHUAYOU, QIYOUZHEHENHAODEGAODIWENXINGNENG, ZHENGCHANGSHIYONGWENDUFANWEIWEI-40℃~200℃, DUANQIKEDA220℃。GUANDAONEIRUNHUAYOUDELIULIANGDAXIAOYOUBIANPINYOUBENGKONGZHI, BIANPINSHUCHUDIANYAWEI380~650V, SHUCHUGONGLVWEI0.75~400kW, GONGZUOPINLVWEI0~400Hz, TADEZHUDIANLUCAIYONGJIAO-ZHI-JIAODIANLU。ZAIYOUXIANGCHUGUANZHONGNEIZHIJIAREXITONG, KEYIDUIHANGKONGRUNHUAYOUJINXINGJIARE, YICILAIGAIBIANBEICEJIEZHIDEZHANDU。DUIWENDUDEKONGZHISHIYONGKEBIANCHENGLUOJIKONGZHIQI, NEIZHIPIDSUANFA, YOUYOUXIANGZHONGDEWENDUCHUANGANQI、YOUXIANGZHONGDEJIAREQIYIJIKONGZHIQIGOUCHENGBIHEWENDUKONGZHIHUILU, BAOZHENGYOUPINJIEZHIZAIGUANDAONEIGAOSUXUNHUANLIUDONGDETONGSHIWENDUWUCHABUCHAOGUO±1℃。GAIZHUANGZHIKECELIULIANGFANWEISHI0.5 m3/h~70 m3/h, KEBIANWENDUFANWEISHI-30℃~155℃, YOUWENKONGZHIDEJINGDUWEI±5%, BIAOZHUNCHENGDECELIANGJINGDUWEI0.02%, ZHUANGZHIBUQUEDINGDUWEI0.05%。ZHUANGZHIJIEGOUYUANLITURUTU1SUOSHI。

图1 系统整体结构图

TU1 XITONGZHENGTIJIEGOUTU

 

2、实验原理:

pk10赛车冠军单双计划   GAIZHUANGZHIDECELIANGYUANLISHIJINGTAICHENGZHONGFA, JIZAIGUDINGDESHIJIANNEI, SHIYONGDIANNAOCAIJIWOLUNLIULIANGJISHUCHUMAICHONGGESHU, TONGSHIJIANGLIUGUODELIUTIQUANBUYINRUDAOBIAOZHUNCHENGZHONGCHENGZHONG, CHUYIDUIYINGMIDULAIJISUANLIUGUODEZHENSHITIJILIULIANG, ***ZHONGZAIYONGLEIJITIJILIULIANGCHUYIZONGMAICHONGGESHUJISUANCHUWOLUNLIULIANGJIDEYIBIAOXISHU。

pk10赛车冠军单双计划   SHIYANKAISHIQIANSHOUXIANKAIQIYOUBENG, SHIRUNHUAYOUZAIGUANDAONEIYUNSUXUNHUANLIUDONG, GENJUYIZHIDEJIEZHIZHANDUYUWENDUDEDUIYINGGUANXIBIAO, XUANZEYAOCESHIDEJIEZHIZHANDUSUODUIYINGDEWENDU, RANHOUKAISHIDUIJIEZHIJIARE, SHIZHUANGZHINEIDEJIEZHIDADAOSHEDINGDEWENDUJIQIDUIYINGDEZHANDU。SHIYANKAISHIHOU, SHIYANYUANZAISHANGWEIJIDIANNAOSHANGDIANJISHIYANKAISHI, HUANXIANGFALIJIDONGZUO, LIUGUOWOLUNLIULIANGJIDELIUTIHUIQUANBUYINRUDAOBIAOZHUNCHENGZHONG, YUCITONGSHIDIANNAOKAISHIJISHIBINGCAIJIWOLUNLIULIANGCHUANGANQIDESHUCHUMAICHONGSHU, JINGGUOYIFENZHONGHOUTINGZHI, BIAOZHUNCHENGHUIZIDONGSHANGCHUANLIUTILEIJIZHILIANGZHISHANGWEIJI, SHANGWEIJITONGGUOGAIJIEZHIWENDUMIDUDUIYINGBIAOZAIJISUANCHUTIJI, ZAITONGGUOTIJICHUYIMAICHONGZONGGESHUDEDAOYIBIAOXISHU。ZAISHIYANGUOCHENGZHONG, XITONGJISUANJIZHONGDECHENGXUHUIJILUDANCISHIYANCHIXUDESHIYANSHIJIAN、LEIJIZONGMAICHONGSHU、LEIJIZHILIANGLIULIANG、SHUNSHILIULIANG、LIUTIDANGQIANWENDUXIADEMIDU、LIUTIWENDUDENGXINXI。KEBIANZHANDUYETIBIAOZHUNZHUANGZHIRUTU2SUOSHI。

图2 可变粘度液体标准装置实物图

TU2 KEBIANZHANDUYETIBIAOZHUNZHUANGZHISHIWUTU

3、实验方案:

pk10赛车冠军单双计划   SHIYANCAIYONGKOUJINGWEIDN10DEWOLUNLIULIANGCHUANGANQI, RUTU3SUOSHI。SHIYANZHONGXUANZE10℃JINXINGSHIYANCESHI, DUIYINGDELIUTIJIEZHIDEZHANDUWEI43.49cSt。XUANQU0.3m3/h、0.5m3/h、0.7m3/h、0.9m3/h、1.1m3/h、1.3m3/hHE1.5m3/hGONG7GELIULIANGDIANJINXING, SHIYANLIULIANGFANWEIWEI0.3m3/hDAO1.5m3/h。

图3 涡轮流量传感器样机实物图

TU3 WOLUNLIULIANGCHUANGANQIYANGJISHIWUTU

 

  SHIYANZHONGMEIGELIULIANGDIANJUNJINXING3CICELIANG, (j=1, 2, 3) , 3CICELIANGDEPINGJUNYIBIAOXISHUZUOWEICILIULIANGDIANDEYIBIAOXISHUKi (i=1, 2, 3, 4, 5) , GELIULIANGDIANYIBIAOXISHU***XIAOZHIYU***DAZHIDEPINGJUNZHI, ZUOWEICHUANGANQIDEYIBIAOXISHU。

  YIZHAOGUOBIAOWOLUNLIULIANGJIJIANDINGGUICHENG, LEIJILIULIANGDEXIANGDUISHIZHIWUCHAWEI:

计算公式

pk10赛车冠军单双计划  

pk10赛车冠军单双计划   SHIZHONG:EijWEIDIiJIANDINGDIANDIjCIJIANDINGSHI, CHUANGANQIXIANGDUISHIZHIWUCHA, %;

  VijWEIDIiJIANDINGDIANDIjCIJIANDINGSHI, WOLUNLIULIANGJILEIJILIULIANGZHI, m3;

  (Vs) ijWEIDIiJIANDINGDIANDIjCIJIANDINGSHI, BIAOZHUNLEIJITIJILIULIANGZHI, m3;

  DIiJIANDINGDIAN, WOLUNLIULIANGJILIULIANGJIXIANGDUISHIZHIWUCHADEZHIWEI[3]:

计算公式

pk10赛车冠军单双计划  

4、实验数据和结果:

pk10赛车冠军单双计划   SHIYANCEDEZAILIUTIJIEZHIDEZHANDUWEI43.49cStTIAOJIANXIA, DN10KOUJINGDEWOLUNLIULIANGCHUANGANQIZAIGEGESHIYANLIULIANGDIANDEYIBIAOXISHUKiRUBIAO1SUOSHI。

pk10赛车冠军单双计划 BIAO1 LIULIANGDIANDUIYINGYIBIAOXISHU (1/L)  

表1 流量点对应仪表系数 (1/L)

SHIYONGHANSHUNIHERUANJIANOriginpro 2017DUISUODESHUJUJINXINGNIHE, OriginWEIOriginLabGONGSICHUPINDEJIAOLIUXINGDEZHUANYEHANSHUHUITURUANJIAN, SHIGONGRENDEJIANDANYIXUE、CAOZUOLINGHUO、GONGNENGQIANGDADERUANJIAN, JIKEYIMANZUYIBANYONGHUDEZHITUXUYAO, YEKEYIMANZUYONGHUSHUJUFENXI、HANSHUNIHEDEXUYAO。

pk10赛车冠军单双计划 SHIYONGOriginRUANJIANZHONGDESICIDUOXIANGSHIpolynomialNIHEGONGSHI, SHIYONG***XIAOERCHENGFA, DEDAORUXIAHANSHU, QIZHONGLIUSUWEIZIBIANLIANGX, YIBIAOXISHUWEIYINBIANLIANGY:

计算公式

 

pk10赛车冠军单双计划 TU4WEILIULIANGYUYIBIAOXISHUDENIHEQUXIANTU。

pk10赛车冠军单双计划   BIAO2WEIGEDUIYINGLIULIANGDIANDENIHEHOUYIBIAOXISHUDEWUCHA。

pk10赛车冠军单双计划   RUGUOZHIJIECAIYONGGEGELIULIANGDIANDEYIBIAOXISHUQUPINGJUNZHIDEYIBIAOXISHUWEI1610.68, BIAO3WEIWEICAIYONGNIHEXIUZHENGGONGSHILIULIANGDIANDUIYINGYIBIAOXISHUWUCHA。

图4 仪表系数拟合曲线图

pk10赛车冠军单双计划 TU4 YIBIAOXISHUNIHEQUXIANTU

 

BIAO2 NIHEHOUGELIULIANGDIANDUIYINGYIBIAOXISHUWUCHA (%)

表2 拟合后各流量点对应仪表系数误差 (%)

BIAO3 WEICAIYONGNIHEXIUZHENGGONGSHILIULIANGDIANDUIYINGYIBIAOXISHUWUCHA (%)  

表3 未采用拟合修正公式流量点对应仪表系数误差 (%)

pk10赛车冠军单双计划   WEIZHENGMINGGAIGAOZHANDUBIANLIUSUZISHIYINGSUANFAJIGONGSHIDEYOUXIAOXING, ZHONGXINXUANQUSIGELIULIANGDIAN:0.4m3/h、0.6m3/h、0.8m3/h、1.0m3/hDUIGAIGONGSHIYIJISUANFAJINXINGJINGDUYANZHENG, DEDAOBIAO4SHUJU, BIAO5WEIGEDUIYINGLIULIANGDIANDENIHEHOUYIBIAOXISHUDEWUCHA。

pk10赛车冠军单双计划 BIAO4 SHIYANCEDELIULIANGDIANDUIYINGYIBIAOXISHU (1/L)

表4 实验测得流量点对应仪表系数 (1/L)

BIAO5 YANZHENGSHIYANGELIULIANGDIANDUIYINGYIBIAOXISHUWUCHA (%)  

表5 验证实验各流量点对应仪表系数误差 (%)

  RUGUOZHIJIECAIYONGGEGELIULIANGDIANDEYIBIAOXISHUQUPINGJUNZHIDEYIBIAOXISHUWEI1610.68, BIAO6WEIWEICAIYONGNIHEXIUZHENGGONGSHILIULIANGDIANDUIYINGYIBIAOXISHUWUCHA。

BIAO6 WEICAIYONGNIHEXIUZHENGGONGSHILIULIANGDIANDUIYINGYIBIAOXISHUWUCHA (%)

表6 未采用拟合修正公式流量点对应仪表系数误差 (%)

  SHIYANJIEGUOBIAOMING, JINGGUOZHEIZHONGGAOZHANDUBIANLIUSUZISHIYINGSUANFAXIUZHENGHOU, YIBIAOXISHUJINGDUTIGAODAO0.83%。RUGUOZHISHIJIANDANJIANGYIBIAOXISHUQUPINGJUN, ***DAWUCHAJIANGDADAO4.4%。ERQIECONGXIUZHENGHOUYIBIAOXISHUWUCHAZHIYUWEIJINGGUOXIUZHENGYIBIAOXISHUWUCHAZHIXIANGBI, JIBENGEGELIULIANGDIANJINGDUDOUYOUJIAODADETISHENG。

5、结论:

pk10赛车冠军单双计划   BENWENDUIGAOZHANDUXIAWOLUNLIULIANGJIZAICELIANGBIANLIUSULIUTIJIEZHISHIDEYIBIAOXISHUBIANHUAGUILVJINXINGLEYANJIU, ZAI43.49cStZHANDUTIAOJIANXIA, SHIYONGDN10WOLUNLIULIANGCHUANGANQIZAI0.3m3/h~1.5m3/hLIUSUFANWEINEIJINXINGSHIYAN, BINGTICHUYIZHONGGAOZHANDUBIANLIUSUZISHIYINGSUANFA, GAIGAOZHANDUBIANLIUSUSUANFANENGGOUJIANGYIBIAOXISHUJINGDUYOU4.4%TIGAODAO0.83%, BINGDUICIJINXINGLEYANZHENG, JIEGUOZHENGMINGCISUANFAQUESHINENGGOUDAFUTIGAOWOLUNLIULIANGJIDECELIANGJINGDU。



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