Supersonic velocity gas ejector of spiral arrangement nozzles

The invention discloses a supersonic velocity gas ejector of spiral arrangement nozzles. The gas ejector is characterized by being composed of a mixing chamber (1), an ejection gas collection chamber(2), a supersonic velocity ejection nozzle array (3), an air inlet chamber (4) and a pressure diffuser (5). The supersonic ejection nozzle array (3) is distributed on the conical cylinder wall face ofthe mixing chamber (1) along a multi-head spiral line, the ejection flow and ejected flow contact area is increased, the flow direction pressure gradient in the mixing chamber can be changed step bystep, and the aims of shortening the mixing distance, improving the mixing efficiency and improving the property of the ejector can be achieved. 一种螺旋排列喷嘴的超声速气体引射器，其特征在于引射器由混合室(1)、引射气集气室(2)、超声速引射喷嘴阵列(3)、进气室(4)、扩压器(5)组成。超声速引射喷嘴阵列(3)在混合室(1)的锥形筒壁面上沿多头螺旋线分布，进而增加引射流与被引射流的接触面积，逐步改变混合室内流向压力梯度，达到缩短掺混距离，提高混合效率，提升引射器性能的目的。