A dehydration experiment on a new-style supersonic swirling separator

作者：Wen Chuang; Cao Xuewen^*; Yang Yan; Zhang Yujiao; Zhang Jing; Wang Guodong

来源：Acta Petrolei Sinica, 2012, 33(2): 310-314.

• Critical flow rate
• Dew points
• Dewpoint
• Experimental loop
• Experimental studies
• Inlet pressures
• Mass flow rate
• Moist air
• Pressure recovery coefficient
• Supersonic nozzles
• Supersonic swirling separator
• Swirling strength

Based on the conservation principle of angular momentum, we designed a new-style supersonic swirling separator equipped with a swirling device at the intake of the supersonic nozzle. Accordingly, an indoor experimental loop to test dehydration of this supersonic separator with moist air was set up, and effects of the pressure recovery coefficient on dew-point depression and the swirling strength on mass flow rates were examined, respectively. The results show that after water is removed with the supersonic swirling device, the dew point of water at the net-gas outlet can drop to -2.8°C, namely the dew-point depression is about 34.9°C. The dew-point depression decreases with an increase of the pressure recovery coefficient. The dew-point depression of water at the net-gas outlet is at least 18°C when the pressure recovery coefficient of the separator keeps less than 70%, which gets the supersonic separator working normally. The dew-point depression of water at the net-gas outlet is nearly identical although different inlet pressure is experimentally assigned. Changes of mass flow rates with variable inlet pressures demonstrate that the supersonic separator has a high adaptability to mass flow rates and its dehydration ability is stable. The increase of the swirling strength will decrease the flux of mass flow rates through the supersonic separator. Only when the flux of inlet mass flow rates reach to the designed critical flow rate, can the supersonic swirling separator work normally.

• 出版日期2012
• 单位中国石油大学（华东）