球探体育

热门搜索:  涡街流量计,蒸汽涡街流量计,气体涡街流量计,插入式涡街流量计


SHENMESHIWOJIELIULIANGJIWENYABUCHANG?LIULIANGJISUANYIDOUSHIWEICELIANGQITIHEZHENGQISHEZHIDE。YINWEIQITI、ZHENGQISUIWENDUHEYALIDEGAIBIANERMIDUHUICHANSHENGHENDADEBIANHUA,JINERYINGXIANGZHILIANGLIULIANGDEDAXIAO。SUOYI,ZAIWENDUYALIBIANHUADADECELIANGGUOCHENGZHONGXUYAOSHIYONGWENYABUCHANGGONGNENG。

WENYABUCHANGTONGCHANGZHIYIBIAOCELIANGDESHUJUSHIZAIWENDU25DU,YALIWEIYIGEBIAOZHUNDAQIYAWEITIAOJIANXIADEJIEGUO,TONGCHANGCELIANGXIANCHANGDEWENDUHEYALIYUBIAOZHUNYOUQUBIE,SUOYIYIBANYIBIAODOUNENGCELIANGXIANCHANGWENDUYUYALI,RANHOUTONGGUOJISUANGONGSHIDUICELIANGJIEGUOJINXINGZIDONGBUCHANG。 BIRUKONGQILIULIANGDECELIANG,CHANGYONGDEZIYOUYIBIAOXILIELIULIANGJIDOUSHIDANGQIANWENDUYALIXIADETIJILIULIANG,DANSHIKONGQIDETIJIYIDINGSHIQIZHILIANGSHOUWENDUYALIYINGXIANGJIAODA,JISUANGONGSHIWEI: PV=NRT=>m=MPV/RT LIXIANGQITIZHUANGTAIFANGCHENG,QIZHONGRSHICHANGSHU,YUEWEI8.314J/(mol·K);PWEIQITIYAQIANG,DANWEIPa;MSHIGAIWUZHIDEMOERZHILIANG(HUOZHEHUNHEQITIDEPINGJUNMOERZHILIANG);VWEIQITITIJI,DANWEIm3;TWEITIXIWENDU,DANWEIK。 WEILEJINSIJISUAN,WENDUKANCHENGCHANGWEN20℃(293K),GAIQITIJINSILIXIANGQITI。

球探体育 KONGQIZHILIANGm=29g/mol×101325Pa×1m³÷8.314J/(mol·K)÷293.15K=1205.63g=1.2kg CONGGONGSHIZHONGKEYIKANCHUKONGQIZHILIANGYUWENDUYALIGUANXIHENDA,SUOYIYIBIAOCELIANGSHIYAOXIANCELIANGCHUXIANCHANGDEWENDUHEYALIRANHOUJINXINGZIDONGBUCHANG。

还有具体测量时要看具体介质:
1、测量气体时,需要温度压力同时补偿;气体一般都以标准状况体积流量结算。因为气体的体积流量温度或压力变化时,流量都会改变。
2、测量过热蒸汽时,需要温度压力同时补偿;蒸汽一般都以质量流量结算。因为温度或压力有任何一个发生变化,蒸汽的密度会发生改变,质量流量也随之改变。
3、测量饱和蒸汽时,需要单温度补偿或单压力补偿。饱和蒸汽的密度与温度或压力有一个固定的对应关系(饱和蒸汽密度表),知道其中的任何一个,都可以确定饱和蒸汽的密度。
4、测量液体时,一般不需要压力补偿,在5MPa以下,一般只考虑温度影响,为准确测量需要温度补偿。一般测量时,可以不使用任何补偿;测量一些碳氢化合物(如原油),一般需要温度压力同时补偿。