Multidisciplinary Optimal Design Method for Heavy Metal Axial Flow Pumps

Abstract

The invention relates to the optimization design of heavy metal pumps, and discloses a multidisciplinary optimization design method for an axial-flow type heavy metal pump running under an extreme high temperature working condition. Based on four disciplines of fluid mechanics, mechanics of materials, structural mechanics and thermodynamics, a multidisciplinary assessment is performed on a design scheme, and under the condition of ensuring that the hydraulic performance of the pump is better than a design index and the cavitation performance is good, the safety feature of the pump is the best. The optimization design flow of a heavy metal axial flow pump is modularized, and is divided into five modules, namely a hydraulic design module, a structure modeling optimization module, a CFD calculation module, a fluid-solid thermal coupling module and a system optimization module, wherein the hydraulic design module, the structure modeling optimization module, the CFD calculation module and the fluid-solid thermal coupling module are sequentially connected; a calculation result of the previous module is used as an initial condition for the calculation of the next module, and calculation results of the CFD calculation module and the fluid-solid thermal coupling module are used as the input of the system optimization module; and iterative optimization is carried out on a mathematical model of the system optimization model.

Description

technical field [0001] The invention relates to the optimal design of a heavy metal pump, in particular to a multidisciplinary optimal design method for an axial flow heavy metal pump used in a solar thermal power generation system or a nuclear power plant system operating under extreme high temperature conditions. Background technique [0002] In the past hundred years, with the rapid development of society, economy and technology, human's demand for energy has been increasing day by day, and energy has become a necessary condition for promoting the development of human society and economy. However, with the reduction of fossil energy reserves and the increasingly prominent environmental problems, the development of new and renewable energy has become a current hot issue. Renewable energy such as solar energy, hydropower, wind power, biomass energy, wave energy, tidal energy, ocean temperature difference energy, etc. Solar energy is currently being praised by many scientist...

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Problems solved by technology

[0004] However, there is very little research on heavy metal pumps at home and abroad, and there are almost no published literature on heavy metal pumps.

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