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Experimental study on performance of steam-water injector with central water nozzle arrangement
Wen Jun Li,Dao Tong Chong,Jun Jie Yan,Wei Xiong Chen,Jin Shi Wang 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.9
The steam-water injector (SI) is a simple mechanical device that has been widely used in industry. Wedid an experimental study to find the influence of physical and geometrical parameters on performance of the SI. Thephysical parameters studied were steam inlet pressure, water inlet pressure and water inlet temperature. Whereas, thegeometrical parameters studied were steam nozzle area ratio, area ratio of steam nozzle to water nozzle and the mixingsection converging angle. Pump head was introduced to evaluate the lifting-pressure performance of the SI under dif-ferent operating and geometrical conditions. Optimal values of steam nozzle area ratio and mixing section convergingangle were 1.3 and 11.6orespectively, for the present work, and optimal value of area ratio of steam nozzle to waternozzle increased with increasing water inlet pressure. Two head-capacity curves were introduced to highlight the effectof various physical and geometrical parameters on the performance of SI.