喷嘴宽度对射流元件切换性能影响的模拟试验研究

Analog Experiment Research on Efflux switching Performance of Nozzle vs Efflux element

液动射流式冲击器在实验室中进行深井模拟试验,其结果展现出了良好的应用前景,其可行性在实际应用中得到了验证。但与此同时,也出现了一些问题,原因之一是由于射流元件喷嘴过水断面较小造成的。解决的办法之一就是增大喷嘴宽度。而这种改变可能会影响射流的切换性能,为此有必要进行模拟试验。其结果是射流切换与喷嘴宽度有关,喷嘴宽度过大,射流切换反而无法实现,其只能在一定喷嘴宽度范围内存在。为了更多地增大喷嘴过水断面,需设计新的结构射流元件或其它类型的元件。

When the hydro-efflux hammer is used to going on experiment in the analog deep well, its results indicate that the hydro-efflux hammer has good application potency and its feasibility is verified in practical application. At the same time, some Problems appear too. One of causes is that the water-carrying section is very small. The solvent is that the nozzle width is enlarged. But this change may influence witching performance, so it is necessary to do analog experiment. The test results are the nozzle width is related to efflux switching. If the width of nozzle is too big, the efflux switching can' t be realized on the contrary. It exists only in some scope of nozzle width. In order to enlarge the water-carrying section, efflux element whose structure is new or other type of one need be redesign.