Abstract
Aiming at the problem of erosion failure of tubular throttle valves caused by an internal fluid medium, this paper adopts a streamlined throttle valve and conducts modeling and finite element simulation analysis based on Auto CAD and SolidWorks software. In this paper, the common KC-02 tubular throttle valve is selected as the object of study and simulated before and after its optimization to obtain the pressure and flow velocity of each part of the throttle space. By analyzing the velocity distribution and static pressure distribution diagrams before and after optimization, this paper finds that the pressure at the interface between the throttle valve inlet and the straight pipe is the highest and the erosion phenomenon is the most obvious. In order to reduce the pressure on the pipe, the straight pipe of the throttle was changed to a streamlined pipe and the optimized KC-02 pipe throttle was simulated and analyzed. The results showed that the pressure at the inlet of the pipeline decreased by about 33.3%, and the outlet velocity increased by about 10.1%. The erosion phenomenon was effectively reduced, thereby improving the service life and efficiency of the throttle valve.
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