Analysis of Temperature Field of Nuclear Canned Pump and Thermal Deformation Calculation of the Shielded Can

Abstract:

In order to find out the reason for deformation,cracking and leakage of the shielded can of nuclear canned motor and put forward the solution,a finite element model of 2-pole and 8kW canned motor in temperature field was created. Assigned materials and boundary conditions to each component and calculated the temperature distribution of the canned motor by equivalent heat source load method and display the distribution visibly.By combining with the temperature field data,obtained the temperature characteristics of the shielded can and calculated the thermal deformation based on the maximum temperature.The result of analysis show that the temperatures of each component are different,shielded can’s temperature rise is not uniformly distributed along the circumferential direction and the degree of thermal deformation along axial direction is larger than that along radial direction.The conclusion of this paper is conducive to understand the temperature distribution in canned motor and characteristics of thermal deformation in shielded can clearly,and provides an important theoretical basis for the development of new shielded can structure.

• Periodical: Advanced Materials Research (Volumes 588-589)
• Pages: 1862-1865
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.588-589.1862
• Online since: November 2012
• Authors: Yue Jun An, Chun Ye Guo, Guo Ming Liu, Li Ping Xue
• Keywords: Canned Motor, Shielded Can, Temperature Field, Thermal Deformation

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