Abstract：In order to verify the performance of standard nozzles under the condition of high pressure natural gas, two standard nozzles with different diameters were selected to carry out the real flow calibration test under different pressure conditions. The work standard device of Guangzhou branch of National Petroleum and Natural gas mass flow metering station was used to carry out the test. The experimental results show that the test results of standard nozzles at three different pressure points are consistent, and the test results at each pressure point meet the requirements of GB/T 18603 class A metering system. Meanwhile, the uncertainty evaluation of DN200 caliber standard nozzles was conducted, and the evaluation results also meet the requirements of GB/T 18603 class A metering system. Standard nozzles perform well under high pressure natural gas.
陈行川. 高压天然气条件下标准喷嘴实流标定研究[J]. 计量学报, 2020, 41(12A): 58-62.
CHEN Xing-chuan. Real Flow Calibration of Standard Nozzles Under High Pressure Natural Gas. Acta Metrologica Sinica, 2020, 41(12A): 58-62.
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2020, Vol. 41 
