Flow Field Analysis of Pipeline Pig Receiving Trap

doi:10.16182/j.issn1004731x.joss.201804024

Abstract

Abstract: To study the influence of piping diameter on the flow field characteristics when pig receiving trap is working, the finite element model of pig receiving trap whose type is P6.3MPa DN700/DN600 was established, and the effects of the diameters changes of vent pipe and blow-off pipe were simulated. The effects caused by the pig running speeds on the flow field of the pig receiving trap were studied. The results show that in the pig receiving trap, there is the maximum pressure in the left side of pig staying and the pressure begins to decrease and easy to form swirls in the right side. It is minimum in the vent pipe and blow-off pipe and. When the vent pipe diameter is 100 mm, the pressure, velocity and turbulence kinetic energy are smaller than that of 50mm. With the increase of the blow-off pipe diameter, the pressure, velocity and turbulence kinetic energy decrease, and the rates of changes decrease at the same. When the blow-off pipe diameter is 150 mm, it is relatively more appropriate. With the increase of the pig running speed, the pressure, velocity and turbulence kinetic energy on the vent pipe and blow-off pipe increase.

Key words: pig receiving trap, flow field analysis, vent pipe, turbulent kinetic energy, pressure

CLC Number:

TE832

Han Chuanjun, Yu Cheng, Duan Xingzhi, Li Qi. Flow Field Analysis of Pipeline Pig Receiving Trap[J]. Journal of System Simulation, 2018, 30(4): 1407-1414.

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