发电技术2023，Vol.44Issue(6)：817-823,7.DOI:10.12096/j.2096-4528.pgt.23028
汽轮机轴封加热器换热性能计算
Calculation of Heat Transfer Performance of Steam Turbine Shaft Sealing Heater
摘要
Abstract
The shaft seal heater is a heat exchange device in a steam turbine,which plays an important role to the performance of the shaft seal system.Based on limited data,a method for calculating the relevant parameters of the shaft seal heater was proposed by using an iterative algorithm.The algorithm was validated by comparing the calculated basic heat transfer parameters of the shaft seal heater with the results from Aspen Plus software.The discrepancy is within 0.4%,which validates the iterative algorithm presented in this paper.Taking the practical application of the combined cycle steam turbine unit of Huaneng Beijing Thermal Power Co.,Ltd.as an example,the liquid phase and gas phase flow at the outlet of the shell side,under the condtion of inlet parameter change,were calculated by using this method.Moreover,the correlation model between the fluctuation of import parameters and the heat transfer parameters of the heater was established to verify the effectiveness of the method.关键词
汽轮机/轴封加热器/进口参数/迭代计算/关联模型Key words
steam turbine/sealing heater/import parameters/iterative calculation/correlation model分类
能源科技引用本文复制引用
梁岩芳,彭姝璇,崔永军,罗建超,何垚年,白林超,付经伦..汽轮机轴封加热器换热性能计算[J].发电技术,2023,44(6):817-823,7.基金项目
国家自然科学基金项目(51776201) （51776201）
江苏省碳达峰碳中和科技创新专项资金(重大科技示范)(BE2022614). Project Supported by National Natural Science Foundation of China(51776201) （重大科技示范）
Special Funds for Science and Technology Innovation of Carbon Peaking and Carbon Neutrality in Jiangsu Province(Major S&T Demonstration)(BE2022614). （Major S&T Demonstration）
