Flow Field Analysis And Optimization Design Of Oil-gas Separator Based On PumpLinx

The lubricating oil of the screw compressor will produce oil mist at high temperature and be diffused into compressed air to form mixed gas.In this way,it not only wastes resources,but also seriously affects the cleanliness of the air.Therefore,in order to avoid this kind of situation,the technical demand for oil and gas separator is increased.The purpose of this paper is to investigate the factors affecting the separation of oil and gas by numerical simulation of the gas and liquid phase in the separator,and to provide a reference for improving the separation efficiency and optimizing the design of the separator.The role of the oil and gas separator is to separate the liquid phase of the gas phase as far as possible,making the air cleaner.The internal flow of the separator is a very complex three-dimensional strong rotating turbulent motion,and it is difficult to use analytical methods to obtain its flow status.Due to the limitation of conditions,experiments are used to study the performance of the separator,which has a long time and expensive problems.PumpLink fluid analysis software is a good way to avoid these problems.This technology has the advantages of fast calculation speed,low cost,and strong simulation ability.This paper mainly uses the numerical simulation method to simulate the volume flow of oil and gas separator,the motion trajectory of different oil droplets and the flow law of gas phase under the error of the inlet manufacturing,and to optimize the structure of the separator and improve the separation efficiency.It provides a theoretical basis for the design and development of a new model,which can shorten the design cycle to a certain extent,reduce costs,and achieve the purpose of improving the purity of compressed air and purifying and removing oil.Through the theoretical analysis and simulation results of this paper,the following conclusions are mainly obtained:1.For oil and gas separators with different import locations,the simulation of the internal flow field shows that the tangential entry effect is the best.It shows that the design of the inlet and the collision between the mixture and the wall surface are one of the factors that affect the separation of oil and gas.2.The oil and gas separation efficiency will change with the factors such as the manufacturing error of the inlet,the size of the oil droplets,the volume flow,and the wall thickness;3.Through the test results of oil content and pressure difference test of the core ofthe oil and gas separator,the oil content and oil pressure difference of the exhaust gas separator after the first stage separation of the designed oil and gas separator are far lower than the industry standard,that is,the design of the oil and gas separator meets the expected engineering requirements.4.Through the simulation of the oil and gas separator and the comparative analysis of the oil and gas separation core test,the results obtained by the software are quite close to the values measured by the experiment,indicating that the simulation results using the software are feasible.It also shows that the software simulation analysis is of great value to the actual working conditions.