Dissertation > Excellent graduate degree dissertation topics show

Reduce Shiliquan 125MW unit boiler flue gas temperature

Author: ZhangLei
Tutor: TianMaoCheng
School: Shandong University
Course: Power Engineering
Keywords: Reduce Exhaust gas temperature Thermodynamic calculation Thermal Test Transform
CLC: TK228
Type: Master's thesis
Year: 2005
Downloads: 174
Quote: 2
Read: Download Dissertation

Abstract


Boiler thermal power plant equipment, the heat loss of the boiler, the exhaust gas heat loss is one of the largest, is generally about 5% -12%, accounting for 60% - 70% of the boiler heat loss. The main factors affecting the exhaust gas heat loss is the exhaust gas temperature, exhaust gas temperature has been the main impact of the power station boiler operating efficiency and economic indicators. Reduce exhaust gas temperature, fuel economy, improve the operation of the power station boiler efficiency and reduce the cost of power generation and supply, reduce pollution, is of great economic and social benefits. Around Shiliquan high exhaust gas temperature, the paper first theoretically analyzed the factors affecting the exhaust gas temperature classification generalization of the main factors affecting the exhaust gas temperature. Second, the combination of the status quo of the Shiliquan 125MW boiler, 125MW boiler coal, equipment and operational parameters and operation mode changes, re-furnace combustion and heating surface heat transfer thermal calculation derived in the current conditions exhaust gas temperature could theoretically reach 148.5 ℃ (the boiler design book on the exhaust gas temperature of 170 ° C) transformation for future research work provides theoretical support. On the basis of the calculation, conducted a survey of the possible reasons for the high exhaust gas temperature. The through thermal test and the calculation and analysis of the test results, we have come to the reasons for the high exhaust gas temperature Shiliquan. In order to further reduce exhaust gas temperature, consider retrofitting low pressure economizer. For the conclusion of the above analysis, we carried out the research work of the following three aspects: on the the pulverizing system Classifier transformation to focus on the transformation and test optimization. The transformation Classifier entrance Ball a series of measures to optimize test and install pulverizing expert system, the coarse separator efficiency of about 10%, and the pulverizing system contribute to increase the 8-10t / h. Retrofitting low pressure economizer preheater outlet flue design, testing and analysis of test results to determine the best run, and at the same time to analyze the existing problems in the design and improvement measures are proposed to provide guidance for future work . Introduction of new technology, new furnace air leakage and heat the area of ??ash and ash fouling governance. Through the study of the subject, we proposed transformation programs and measures, and the implementation of 2003 # 3 furnace overhaul, and achieved good results. Not vote Pressure Economizer successfully # 3 furnace exhaust gas temperature is reduced by 192.5 ℃ before the transformation to transformation after 147.5 ° C Pressure Economizer cast, the exhaust gas temperature to further reduce to 134.1 ℃ (ambient temperature of approximately 15 ° C) to achieve the desired effect. Reduce the exhaust gas temperature is a systematic project, a lot of factors affecting the exhaust gas temperature and high exhaust gas temperature, different units often different reasons. Future Shiliquan 125MW boiler unit lower exhaust gas temperature transformation through the study of the subject, on the theory and practice

Related Dissertations

  1. Research on Lapped Transform and Vector Quantization Based Image Coding Algorithm and Applications,TN919.81
  2. Analysis of Spread Spectrum Signals Based on FRFT,TN911.6
  3. The Algorithm of DFT with a Subset of Output Points Based on TS101 and Its Software Implementation,TN911.72
  4. Modulation Pattern Recognition and Parameter Estimation for Ground Wave Radiation Sources,TN957.51
  5. Research on Improvement of DSSS Receiver Based on Phase Domain,TN914.42
  6. Research on Autamatic Music Structrue Analysis,TN912.3
  7. Research on Image Compression and Implementation Using TMS320C6713 Based on SPIHT Algorithm,TP391.41
  8. Feature Extraction, Selection and Combination in Lipreading,TP391.41
  9. Research on Feature Extraction and Classification of Doppler Ultrasonic Blood Flow Signals of Wrist Radial Artery,TP391.41
  10. Analysis of Infrared Spectral Features and Identification of Al-responsive Genes in Small Black Soybean with Aluminum Stress,S529
  11. Research on Recognition of Fabric Weave Pattern Based on Space-Frequency Domain,TS101.923
  12. Research on Identification System of Cashmere and Wool Fiber,TS101.921
  13. Characteristics of sensory stimulation evoked,R318.0
  14. Network transmission ROI image coding algorithm,TN919.81
  15. Tianjin transformation of traditional industries strategic research,F426.81
  16. Guide heliocentric orbit simulation Research and Improvement,O53
  17. Image Fusion Algorithms Based on Multi-scale Analysis,TP391.41
  18. Research on License Plate Location Algorithm of License Plate Recognition System,TP391.41
  19. Feature Extraction Technologies Research and Implementation of 3D Models Based on Wavelet Transform,TP391.41
  20. Research on Contourlet Transform and Its Application on Image Processing,TP391.41
  21. Japanese administrative culture change and integration and its Implications for China,D630

CLC: > Industrial Technology > Energy and Power Engineering > Steam Power Engineering > Steam boiler > Repair, maintenance
© 2012 www.DissertationTopic.Net  Mobile