天然气输差问题的分析与研究

Analysis and Research on the Transmission Error of Natural Gas

输差是控制输气成本的一个最关键的指标,如何降低输差是管输企业面临的难题。针对输气系统的输差问题,从误差理论出发,以输气干线系统为研究对象,分析了产生输差问题的原因,对标准孔板引起的测量误差、输气干线测量误差和测量误差造成的输差进行了计算,给出了单点输差和综合输差的计算方法,并提出了降低输差的措施和方法。

Natural gas transmission error is one of the most pivotal ind;ces in gas transmission cost control. How to reduce transmission error is one of the problems that the tube-transporting enterprise has to face with. This paper aims at transmission error in transmission system and analyses the causes of the transmission error in the main gas transmission pipeline according to the theory of errors. This paper introduces the methods of calculating the measuring error creative by the standard orifice, the measuring error of the main gas transmission pipeline and the transmission error induced by the measuring error and also give out the calculation procedure of single-point transmission error and synthesize transmission error. In the last this paper brought forward the measures and means how to reduce the transmission error.