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The Research of the Performance Parameter by Valve-hydro Hammer

Author: DaiChangYou
Tutor: ShiYongQuan
School: Chengdu University of Technology
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Hydraulic Hammer Impacting Energy Impacting Frequency Pressure Stress Wave
CLC: P634.4
Type: Master's thesis
Year: 2007
Downloads: 124
Quote: 0
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Abstract


The Hydro-hammer Technique in drilling hole is for shorten hydraulic hammer ,owing to its special structure and working principle ,makes it featured in simple structure ,suits to deep-hole hard rock drilling and has well application prospect in hydrological water-well, geothermal hydro-well and scientific drilling . And the impact performance parameter also weighs impact fit and unfit quality, whether is worth continuing to study, the research and the optimized important parameter.This paper summarized the predecessor’s methods to determine and compute the impacting energy and impacting frequency of the Hydro-hammer, simply analysis each method advantages and dis advantages, and study the working principle of the Valve- hydro hammer, achieved a new method to compute the impacting energy and impacting frequency .and take the YZ-73 valve- hydro hammer for example to exam the method.This paper also to analysis and compute the pressure which affect the impacting energy and impacting frequency of the Hydro-hammer through the experiment get the datum which we need, used the FLUENT software in order to obtain the more accurate performance parameter.In the final, simply elaborate the rock broken, the dissemination rule, loss of the impacting energy and the changing regularity of speed and force of the stress wave produced by the hammer in the procession of transmission on mass point of each variable cross-section.

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CLC: > Astronomy,Earth Sciences > Geology > Geology, mineral prospecting and exploration > Drilling Project > Drill bits,drilling tools
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