多声道超声波流量计在“中—土”天然气项目贸易计量中的应用

随着中国—中亚天然气管道投产输气,在中国—土库曼斯坦天然气项目贸易计量交接中首次应用了多声道气体超声波流量计。为此,详细介绍了德国RMG公司生产的多声道超声波流量计的工作原理、结构、性能特点和校准情况。现场应用情况表明,该流量计具有测量精度高、测量范围宽、抗干扰性强、无压损、超载安全、可进行双向测量和测量的影响因素少等特点,应用在高压、大流量的天然气计量中具有强大的优势。多声道气体超声波流量计完全适用于国际天然气贸易计量交接,有效地提高了国际天然气计量技术水平,避免了国际贸易计量的纠纷,为中国石油天然气集团公司在中亚地区天然气项目的贸易计量提供了一个典型的成功案例。

Application of multitrack ultrasonic flowmeter in the trade metering of Sino-Turkmenistan Natural Gas Project

With the commissioning of the Central Asian Natural Gas Pipeline in China, the ultrasonic flowmeter with multitrack has been firstly applied in the trade transaction measurement of the Sino Turkmenistan natural gas project. Therefore, this paper introduces the working theory, structure, property features and calibration condition of the flowmeter which is produced by the RMG Group in Germany. The on site application results show that the flowmeter is featured by a high measuring accuracy, wide measuring range, strong antijam performance, and secure overload. It is capable of performing bidirectional measuring and is affected by few factors. Besides, it is free from pressure loss. It has great advantage in natural gas metering which is featured by high pressure and large flow. The ultrasonic flowmeter with multitrack can completely fit in with the international natural gas trade transaction measurement. The flowmeter can effectively improve the technical level of the trade transaction measurement and avoid international trade disputes. It has become a typical successful case in gas trade metering of CNPC in the Central Asia.