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Abstract:
Noise control is very important for the safe production of natural gas wellhead. After natural gas goes through the throttle valve then must travel through the filling nipple (which connect secondary throttle valve and the elbow), and get in the exchange tube, there will be the production of noise due to internal flow field changes caused by sudden change of structure. This paper aimed at the natural gas field in Sichuan basin, and optimized the structure of the filling nipple, and numerical simulation of the flow field before and after the optimization was carried out. The simulation results show that the vortexes of the internal flow field are reduced, the velocity distribution of each section of pipeline is uniform, and the optimized structure is conducive to reducing noise.
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