Adjustable spraying device and method

The invention provides an adjustable injection device and method, relates to the field of injection mixers, and aims to solve the problem that the efficiency is low when the inner sectional area of an injector is adjusted at present. When the position of the adjusting core is changed, the sectional area of a channel in the power nozzle and the sectional area of a channel in the mixing chamber can be adjusted at the same time, adjusting steps are reduced to improve the adjusting speed, the requirement for rapidly adjusting the injection ratio is met, and therefore operation efficiency is improved. 本发明提供一种可调式喷射装置及方法，涉及喷射混合器领域，针对目前调节喷射器内截面积时效率较低的问题，通过在喷射装置内部设置调节芯，调节芯在动力喷嘴、混合室内均有分布，改变调节芯位置时能够同时调节动力喷嘴内通道的截面积和混合室内通道的截面积，减少调节步骤以提高调节速度，满足快速调整引射比的需求，从而提高运行效率。