In the renovation and repair work of the hydro-turbine runner chamber in hydropower stations,there are vari-ous problems in the demolition of the concrete such as high work intensity,low construction efficiency,and significant environmental impacts.Thus,a concrete demolition actuator is designed for super-large hydro-turbine runner chambers based on water jet technique.Practical engineering application shows that the high-pressure water jet actuator can effi-ciently dismantle the concrete structures in super-large hydro-turbine runner chambers using water jets with a pressure greater than 130 MPa and a flow rate greater than 60 L/min.Its efficiency is 2.7 times of the traditional manual machin-ery operation.It realizes a semi-automatic construction and is of various advantages such as high repair quality,safe and environmentally friendly.It has good application prospects in the renovation of similar structural projects.
关键词
水轮机转轮室/高压水射流执行机构/高压水射流/混凝土拆除/大曲面
Key words
hydro-turbine runner chamber/high-pressure water jet actuator/high-pressure water jet/concrete demoli-tion/large curved surface
维普
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