Research on cleaning process parameters of mud tank based on jet mechanism
The traditional drilling mud tank cleaning adopts manual operation,which has problems such as safety risks and low efficiency.Starting from the cleaning process of mud tank and combined with the mud tank structure and the characteristics of oil sludge deposition in the tank,the cleaning mechanism of impacting,breaking and dissolving the oil sludge in the tank by"jet cleaning sludge with oil"jet mode was analyzed,and the research on jet trajectory model,spray gun cleaning mode,jet striking force,etc.was carried out.The results show that when the jet pressure is 0.7 MPa,the flow rate is 500 L/min,the nozzle outlet diameter is 18 mm and white oil is used as the jet cleaning medium,and when the target distance is 8 m,the jet striking force is 213 N,the three-dimensional rotary spray gun developed completely meets the requirements of typical drilling mud tank cleaning operations.At the same time,the three-dimensional rotary spray gun is equipped with two zonal cleaning modes:tank bottom and tank wall.Through the switching of the cleaning modes,the mud tank is finally cleaned in all directions.The research results can provide reference for safe and efficient automatic cleaning of drilling mud tanks in mud stations.
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