Multi parameter coupling analysis for performance enhancement of self powered control valve

Once a leakage occurs in pipelines, it can easily lead to severe ecological disasters. To achieve rapid emergency response and minimize the resulting hazards, it is urgent to address the core challenge of stable power supply for pipeline networks in remote off-grid environments. Control valves are widely used in pipe network systems (e.g., hydraulic stretching pad, oil and gas transmission pipelines). A viable solution lies in generating electricity by harvesting fluid energy in pipelines via integrating runners into inherent valves (termed self-powered control valve or green valve). Runners are characterized by numerous structural parameters. A comprehensive investigation into the potential interactions among these parameters and the extent to which each parameter and its interactions influence performance is imperative for achieving optimal structural performance. In this paper, the effects of multiple parameters (blade shape, number of blades, and blocking ratio) and their interactions on the two main characteristics of the self-powered control valve fluid regulation and energy harvesting are investigated based on the orthogonal experimental method and the primary and secondary factors affecting the performance are identified. The results show that blade shape and blocking ratio have a greater effect on performance than the number of blades; there is a strong interaction between blade shape and the number of blades, which affects the energy harvesting performance, so different blade shapes correspond to different optimal numbers of blades; and the interaction between blocking ratio and the other two parameters is small.