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Study on the Life of Domestic 600MW Supercritical Steam Turbine Rotor

Author: GuoJingJing
Tutor: BianShuang；JiaoQingFeng
School: North China Electric Power University (Beijing)
Course: Power Machinery and Engineering
Keywords: Supercritical Steam Turbine Thermal stress Rainflow
CLC: TK263
Type: Master's thesis
Year: 2011
Downloads: 95
Quote: 1
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Abstract


Growing worse as the total power load and peak , small units peaking can not meet the demand of the grid , and therefore the use of large-scale units involved in the power peaking is imminent , large power peaking units frequently involved in the inevitable turbine rotor often to withstand alternating stress , so that the steam turbine rotor withstand low cycle fatigue loss so large unit involved in the process of power peaking turbine Rotor life Loss significant . Huadian a power plant of 600MW supercritical steam turbine unit , based on the unit rotor geometry characteristics of the rotor finite element modeling of the full-size , the Steam Turbine system the peaking running test research and to monitor the relevant operating data . And then use the test collection of various parameters, and calculated according to the design parameters of the unit to draw the heat transfer coefficient for each portion of the rotor , the obtained actual initial and boundary conditions . In this paper, the the matlab mathematical tools programming , different conditions and in different parts of the calculated heat transfer boundary conditions . Then marc finite element software of 600MW supercritical steam turbine rotor in cold start , warm states start hot start , the slip parameter downtime process conducted finite element analysis , drawn under various conditions of temperature and stress field . Finally, the steam turbine rotor life loss calculation method - rain flow method and the use of the matlab mathematical tools compiled rainflow counting procedure using the rainflow program fracturing in life loss calculation of the actual running of the stress spectrum obtained each variable the loss of life conditions , and thus on the safe operation of the unit of 600MW supercritical steam turbine the practical engineering recommendations .

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CLC: > Industrial Technology > Energy and Power Engineering > Steam Power Engineering > Steam turbine (steam turbine,steam turbine ) > Structure
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