气液两相流流量的互相关测量

The Measurement of Gas-Liquid Two-Phase Flowrate by Using Cross-Correlation Analysis

在内径为３０ｍｍ的垂直上升管中，应用互相关分析和Ｕ型光导纤维探针，对水一气两相流和油－气两相流进行了各分相流量测量的实验研究，考虑了流型和雷诺数对流量测量的影响，同时研究了含气率的测量，提出了计算平均含气率的关系式。对水－气两相流，试验的气相折算流速范围为０．２２～３．００ｍ／ｓ，波相折算流速范围为０．１１～３．００ｍ／ｓ；对油一气两相流，试验的气相折算流速范围为０．１０～１９．０１ｍ／ｓ，液相折算流速范围为０．３５～１．６５ｍ／ｓ。

The individual flowrates of water-air and oil-air two-phase mixtures are measured by using cross-correlation analysis and U-type optical fiber probes in a vertical pipe with diameter of thirty millimeters. Local phase distributions are studied and correlations for predicting mean void fraction are presented. The effects of flow regime and Reynolds number on flowrate measurement are observed. For water-air flow, the gas volume fluxes are between 0. 22 and 3. 00m/s and the liquid volume fluxes are between 0. 11 and 3. 00m/s. For oil-air flow, the gas volume fluxes are between 0. 10 and 19. 01m/s the liquid volume fluxes are between 0. 35 and 1. 65m/s.