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Prediction of Running Turbine Rotor’s Thermal Deformation and Developing the Hot Running Equipment
Author: JinXiangWang
Tutor: WangNaJun
School: Harbin Institute of Technology
Course: Mechanical Manufacturing and Automation
Keywords: turbine rotor hot running equipment thermal deformation FEM
CLC: TK263.61
Type: Master's thesis
Year: 2010
Downloads: 39
Quote: 0
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Abstract
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Lots of turbine break down in high temperature for the rotor’s thermal deforma-tion, measuring the turbine rotor’s thermal deformation only can be done in the hot running process during the whole production process. With the fast developing of electric power industry, especially the nuclear power capacity increase rapidly, the requirement for the turbine grown stronger and stronger. The existing equipment is low efficiency, high energy consumption and poor reliability and it is a bottleneck in the productive process. The object of the thesis is predicting the turbine rotor thermal deformation at work and developing the hot running equipment.Firstly, a summary is made to the thermal deformation theory, analysis the influ-ence of turbine rotor thermal deformation to its precision and performance. Secondly, the parameterized finite analysis system of turbine rotor thermal de-formation based on the secondary development of ANSYS is established. The system was applied to analyze an example and get the predicted value.Thirdly, the hot running equipment is developed, according to the technical re-quirements, the improved structure is presented. The equipment includes four parts: supporting idler, slide carriage bracket, main gearbox and lathe bed, then make de-tailed design and creat the process flow of the key parts. Finally complete the hot running equipment.Finally, the measurement of turbine rotor thermal deformation is formulated and the experiment is performed. The results are analyzed and compared with the pre-dicted value , through which some conclusions are achieved.
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CLC: > Industrial Technology > Energy and Power Engineering > Steam Power Engineering > Steam turbine (steam turbine,steam turbine ) > Structure > Interlocks and twist > Rotor
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