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近一年来,在全射流喷头研究中,我们提出超大位差的概念、拟负压切换的设计机理,解决了自反馈式射流喷头步进喷洒的程序控制;提出流场干扰的方法,解决了喷头元件喷嘴截面为正方形或长方形时喷头的自动返回;应用水封隔气原理,解决了喷头元件喷嘴截面为园形时喷头的自动返回,这样就较全面地解决了自反馈式射流喷头的设计问题。本文就研究中的一些有关问题作初步的论述。
In the past year, in the research of full jet nozzle, we put forward the concept of super-big difference and the design mechanism of the negative pressure switching to solve the program control of the step jet of the self-feedback jet nozzle. When the cross section of the nozzle element is square or rectangular, the nozzle automatically returns. The principle of water seal and gas trap solves the automatic return of the nozzle when the cross section of the nozzle element is circular, so that the design of the self-feedback nozzle is more completely solved problem. This article gives a tentative discussion of some related issues in the research.