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technical article
Knowledge about flow range selection of turbine flowmeters
2011-10-9 16:34:07

      在使用涡轮流量计时,一般 常用流量点是工作 所选涡轮流量计最大流量点的1/3 2/3 之间。 According to the requirements of gas consumption, when using a turbine flowmeter , the commonly used flow point is generally between 1/3 and 2/3 of the maximum flow point of the turbine flowmeter selected during work . 让涡轮流量计工作在最好的机械特性位置, 同时 也为以后工作流量 加大留有余量。 In this way , the turbine flowmeter can work at the best mechanical characteristic position, and at the same time, there is a margin for increasing the working flow in the future .

      作状 流量与标 准状 流量转换的估算。 Turbine flowmeter in the working conditions and the standard flow rate conversion estimates. 由于 气体流量计对它最大影响的是压力的大小,可以用Qn=Qg *( Pa+pg /pn 来进行估算。 According to the calculation in the equation of SY / T6143-1996 , since the biggest influence of the gas flow meter is the pressure, it can be estimated by Qn = Qg * ( Pa + pg ) / pn .
  :标 准状 况下的流量 Qn : traffic under standard conditions
  :工 作状 况下的流量 Qg : traffic under working conditions
:工 作状 况下的介质压力 Pg : medium pressure under working conditions
  :当地环境大气压力(估算中可以用100kpa 来计算) Pa : local ambient atmospheric pressure ( 100kpa can be used in the estimation )
  :标准压力值(估算中可以用100kpa 来计算) Pn : standard pressure value ( 100kpa can be used for calculation)