High-temperature pump radiator numerical value optimization method based on DOE
A numerical optimization and radiator technology, applied in the field of water pumps, can solve problems such as reducing the working efficiency of the pump and affecting the normal operation of the bearing service life, and achieves the effect of improving the heat dissipation effect, saving calculation time and calculation cycle, and saving time and cost.
Active Publication Date: 2017-05-31
JIANGSU UNIV
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Problems solved by technology
[0002] High-temperature pumps are generally vertical pumps. When the pump is working, the operating temperature is relatively high, but the coupling on the shaft can withstand a temperature not higher than 80°C, and the temperature rise must not exceed 40°C, otherwise it will affect the service life of the bearing and The normal operation of the pump reduces the working efficiency of the pump, which puts forward higher requirements for the heat dissipation system of the high temperature pump
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[0050] A high-temperature molten salt pump for nuclear power with a specific speed of 165, its main parameters are: the width of the impeller outlet is 37mm, the diameter of the impeller outlet is 278mm, the diameter of the impeller hub is 37mm, the diameter of the pump shaft is 25mm, and the operating temperature of the pump is 973K.
[0051] The outer diameter of the radiator of the high temperature molten salt pump is D=450mm, the height b=175mm, and the temperature of the inlet fluid is T f =72K, solid surface temperature T w =973K. The radiator model of the pump is as figure 2 shown.
[0052] (1) According to the heat transfer formula of the high temperature pump radiator convective heat transfer It can be seen that the convective heat transfer quantity Q has a direct relationship with the convective heat transfer area, and the present invention mainly studies two important factors affecting the convective heat transfer area—the diameter D and the number N of cooling...
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The invention belongs to the technical field of water pumps and discloses a high-temperature pump radiator numerical value optimization method based on DOE. The method is mainly used for calculating an optimal combination of main geometric parameters of a high-temperature pump radiator having optimal heat-radiating effect. The method includes: (1), building a sample library for numerical value optimization of the high-temperature pump radiator; (2), adopting a response surface model or a Kriging model or a radial basis function neural network model to build an approximate model between the main geometric parameters of the high-temperature pump radiator and heat-radiating performance of the same; (3), adopting a global optimization model to globally optimize the approximate model; (4), according to an optimization result, performing temperature field analysis, heat deformation analysis and deformation analysis on the high-temperature pump radiator. By the method, the optimal combination of the main geometric parameters of the high-temperature pump radiator can be determined quickly and accurately, and design period can be greatly shortened.
Description
technical field [0001] The invention belongs to the technical field of water pumps, in particular to a DOE-based numerical optimization method for a radiator of a high-temperature pump. Background technique [0002] High-temperature pumps are generally vertical pumps. When the pump is working, the operating temperature is high, but the coupling on the shaft can withstand a temperature not higher than 80°C, and the temperature rise must not exceed 40°C, otherwise it will affect the service life of the bearing and The normal operation of the pump reduces the working efficiency of the pump, which puts forward higher requirements for the heat dissipation system of the high temperature pump. How to effectively dissipate heat from the high-temperature pump and reduce the temperature of the bearing end to an allowable range has always been one of the difficult problems in the design of high-temperature pumps. [0003] At present, DOE optimization methods such as full factorial des...
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Login to View More IPC IPC(8): G06F17/50
CPCG06F30/17G06F2111/10
Inventor 王凯何相慧刘厚林谈明高王勇董亮夏晨李钰
Owner JIANGSU UNIV