Development and Engineering Application of Thermal Calculation System for Double-Reheat Ultra-Supercritical Boilers

doi:10.11930/j.issn.1004-9649.2017.02.075.07

Abstract

Abstract: The double-reheat technology for ultra supercritical boilers can improves the thermal efficiency of the unit, and has good environmental effects as well. At present, the introduced‘black box’ computational program, which has narrow and specific adaptability, is adopted in the domestic thermodynamic calculation of ultra supercritical boilers. In this paper, based on the multi-layer architecture of J2EE standard, the general model and the overall algorithm using unified steam and water flow circuit is proposed to calculate the thermal performance of the double-reheat ultra-supercritical boiler. And the thermal performance calculation system is developed to support different series of heating surfaces and flow sequential structure. At the same time, the effectiveness of the algorithm is verified through an application case of a 1 000-MW ultra-supercritical double-reheat boiler.

Key words: ultra supercritical boiler, double-reheat, thermodynamic calculation, unified steam and water flow circuit, J2EE architecture

CLC Number:

TM621.22

SHI Shuyu, LI Zhi, ZHAO Chao, ZHANG Yong, YANG Tianliang. Development and Engineering Application of Thermal Calculation System for Double-Reheat Ultra-Supercritical Boilers[J]. Electric Power, 2017, 50(2): 75-81.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2017.02.075.07

https://www.electricpower.com.cn/EN/Y2017/V50/I2/75

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