Abstract

Abstract

In order to solve the problems of simple structural form of domestic alloy anti-scaling tool and insufficient performance of anti-scaling alloy, the method of introducing cyclone impeller is proposed to complete the design of a new type of water injection alloy anti-scaling tool. Based on numerical simulation and related literature, five structural parameters such as impeller blade wrap angle and impeller blade exit angle were selected, for which 25 groups of single-factor structural parameter size simulation analyses were completed by numerical simulation, and a five-factor, three-level orthogonal optimization scheme was determined, and 18 groups of orthogonal simulation optimization were completed, and a multi-indicator comprehensive evaluation model of the new type of water injection alloy anti-scaling tool was established by entropy weighting, and a comprehensive performance evaluation index K value of the new alloy anti-scaling tool was set up by entropy weighting. The K value of the comprehensive performance evaluation index was used to carry out intuitive analysis and ANOVA on the orthogonal test results, and the optimal structural parameter scheme of the tool was obtained. Numerical simulation analysis of the optimised tool structure shows that the K value of the comprehensive evaluation index of the structural scheme increases by 7% compared with that before the optimisation, and the flow field test of the new water injection alloy anti-scaling tool test model is carried out by using the PIV three-dimensional velocity test system, and the results show that the error value of the numerical simulation results and the test results is within 8%, which verifies the reliability of the numerical simulation results and the validity of the design and optimisation of the structure of the new water injection alloy anti-scaling tool. The results show that the error between the numerical simulation results and the test results is less than 8%, which verifies the reliability of the numerical simulation results and the effectiveness of the new water injection alloy anti-scaling tool's structural design and optimisation.