增压锅炉大容量蒸汽机械雾化喷油器的设计及试验研究

Design and Experimental Study of a Large-capacity Steam-mechanically-atomized Oil Sprayer in a Supercharged Boiler

对某船用增压锅炉大容量蒸汽机械雾化喷油器的设计进行了详细的探讨,采用几种流量系数修正算法对喷油器进行了验证性计算,并将结果与其流量特性试验研究结果进行对比分析,结果表明:应用流量系数μk j=0.405A-0.75k修正方法,计算结果与试验标定结果最大误差为1.8%,该修正方法可以应用于船用蒸汽机械雾化喷油器的设计计算。

A detailed investigation was made of the design of a large-capacity steam-mechanically-atomized oil sprayer in a marine supercharged boiler and a verification calculation was conducted of the oil sprayer by using several flow rate coefficient correction calculation methods. On this basis,the calculation results were analyzed and compared with the test results of the flow rate characteristics. It has been found that by using the flow rate coefficient μk j= 0. 405A-0. 75k empirical formulae as the correction calculation method,the calculation results have a maximal error of 1. 8% as compared with the test calibration results. The correction calculation method can be used in design and calculation of marine steam-mechanically-atomized oil sprayers.