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为了有效解决水下切割问题,并大大提高射流的切割能力,将淹没射流装置与磨料射流系统融合形成淹没磨料射流系统,采用高分辨率的数码摄像系统,研究了淹没磨料射流空泡云的形成;利用电子天平的精确测量系统,测试分析了淹没磨料射流对岩石的冲蚀性能.结果表明:淹没磨料射流在岩石冲蚀实验中,最优有效靶距直径比为4.28,最优冲蚀时间为1 min,较纯水空化射流工作效率提高3倍.随着泵压的增加,淹没磨料射流对花岗石的冲蚀质量、冲蚀深度增加;随着围压的增加,对花岗石的冲蚀质量、冲蚀深度减少.
In order to effectively solve the problem of underwater cutting and greatly improve the cutting ability of the jet, the submerged jet device is integrated with the abrasive jet system to form a submerged abrasive jet system. The formation of a submerged abrasive jet bubble cloud is studied by using a high-resolution digital camera system. The erosive performance of submerged abrasive jet on rock was tested and analyzed by using the accurate measuring system of electronic balance.The results show that the optimum effective target distance diameter ratio of submerged abrasive jet in rock erosion test is 4.28 and the optimum erosion time For 1 min, the work efficiency of the cavitation jet was increased by three times.With the increase of pumping pressure, the erosion quality and the erosion depth of the granite by the submerged abrasive jet increased. With the increase of the confining pressure, Erosion quality of stone, reduce erosion depth.