高压天然气田用旋风分离器内流场的数值模拟

对高压天然气田旋风分离器的内流场进行三维稳态数值模拟。将不同压力下的旋风分离器的内部流场进行对比,结果表明,压力对旋风分离器的轴向速度和径向速度的影响很小,但是对切向速度影响较大。旋风分离器的压降随着压力的增大而增大,基本成线性关系。在高压条件下,排气管的直径和入口面积对旋风分离器内流场速度的影响是比较有规律的。

NUMERICAL SIMULATION OF FLOW FIELD IN CYCLONE SEPARATE AT HIGH-PRESSURE GAS FIELD

The fluent program is used to simulate three-dimensional steady flow in cyclone separator of high-pressured natural gas. Flow field value inside of cyclone separator in different pressure is compared. The results show that the pressure has little influence on axial velocity and radial velocity of cyclone separator, but more influence on tangential velocity. The cyclone separator's pressure drop is increasing with the rising of the pressure, nearly liner relationship. Under the highpressure conditions, the influence of vent pipe diameter and the inlet pipe of cyclone separator flow field value is regular.