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目前,天然气贸易交接中采用质量流量进行计量的非常少,国内几乎所有的天然气贸易交接均采用体积量进行结算,但伴随着GB/T22723-2008《天然气能量的测定》的颁布,能量计量将会得到更多的关注。能量计量是通过两个不相关的测量来完成的,即体积或质量流量的测量和体积或质量发热量的测量,将这两种测量合成,计算出燃气的能量。本文主要介绍城市燃气体积计量用涡轮流量计,无论是目前的体积计量方式或将来的能量计量,气体涡轮流量计都是天然气计量系统中的重要组成部分。
At present, there are very few mass flow measurements in the transfer of natural gas trades, and almost all of the domestic natural gas trade transactions are settled in volume. However, with the promulgation of GB / T22723-2008 Determination of Natural Gas Energy, energy metering will Get more attention. Energy metering is done by two unrelated measurements, volume or mass flow measurement and volume or mass calorific measurement, which are combined to calculate the energy of the gas. This article mainly introduces the urban gas volumetric metering turbine flowmeter, whether it is the current volumetric measurement or future energy measurement, gas turbine flowmeter is an important part of natural gas measurement system.