ITM Web Conf.
Volume 47, 20222022 2nd International Conference on Computer, Communication, Control, Automation and Robotics (CCCAR2022)
|Number of page(s)||5|
|Section||Control Technology and Robotics Technology|
|Published online||23 June 2022|
Discussion on energy saving optimization of supercritical secondary reheat unit
1 Datang Dongying Power Generation Co. Ltd, Dongying, China
2 Datang Northeast Electric Power Test Research Institute Co. Ltd, Changchun, China
* Corresponding author: firstname.lastname@example.org
It aimed at the secondary reheat ultra-supercritical unit to study the direction of energy saving, through comparing the design reasonable optimization and energy saving, improve the cycle thermal efficiency, reduce the coal consumption, achieve the goal of saving energy and reducing consumption. From the traditional heat extraction scheme, by setting the cooler, increase the heat series to design a new solution method, such as energy saving optimization scheme of different performance, investment, such as comparative analysis, finally to determine the best solution. Through the design of a series of studies show that for secondary reheat ultra-supercritical unit, can adopt the following means to improve the efficiency of generating units: one is to increase external steam cooler, make full use of the extraction period of heat; The second is to increase the steam recovery series and rationally distribute the enthalpy drops at all levels. After the above energy-saving optimization and transformation technology, the generating efficiency of the unit is increased by 1.6%, and the coal consumption of power supply is reduced by 6.6g/kWh, achieving a good energy-saving effect.
Key words: Secondary reheat / Thermal system / External steam cooler / Optimization of regenerative series / Energy saving effect
© The Authors, published by EDP Sciences, 2022
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