Abstract
The throttle valve is a key piece of equipment in natural gas extraction, playing the role of throttling and depressurizing high-pressure natural gas. Because of its the special structure, sand-carrying high-pressure natural gas will flow through the tiny overflow surface between the valve body and the spool at high speed, which will inevitably cause erode the throttle valve and thus cause its failure. Therefore, to study the erosion of angle throttle valves by sand-carrying natural gas, we designed an indoor erosion experiment to determine the erosion model of 12Cr13 and applied an erosion model in an angle throttle valve erosion simulation to study the erosion and wear of throttle valve under different particle mass flow rates. The study revealed that the erosion wear rate of 12Cr13 reaches a maximum at an erosion angle of 30°, and the impact angle function and velocity index of 12Cr13 is 2.4. The most serious erosion site of the angle throttle valve is at the gap of the annular throttle, and the erosion wear rate increases with increasing particle mass flow rate.
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Wang, B., Li, S., Cao, J. et al. 12Cr13 Erosion Model and Application. J Fail. Anal. and Preven. 23, 339–350 (2023). https://doi.org/10.1007/s11668-022-01588-2
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DOI: https://doi.org/10.1007/s11668-022-01588-2