一次扰动下直流蒸汽发生器动态换热性能仿真

doi:10.11949/j.issn.0438-1157.20180281

化工学报 ›› 2018, Vol. 69 ›› Issue (S1): 64-71.DOI: 10.11949/j.issn.0438-1157.20180281

一次扰动下直流蒸汽发生器动态换热性能仿真

薄琳¹, 孙宝芝¹, 干依燃², 丁宏达¹, 史建新¹

1 哈尔滨工程大学动力与能源工程学院, 黑龙江哈尔滨 150001;
2 中国核动力研究设计院核反应堆系统设计技术国家级重点实验室, 四川成都 610041

收稿日期:2018-03-16 修回日期:2018-07-17 出版日期:2018-09-30 发布日期:2018-09-30
通讯作者: 孙宝芝,E-mail:sunbaozhi@163.com
基金资助:
国家自然科学基金项目（51479040，51579048）；黑龙江省自然科学基金项目（E201422）。

Simulation of heat transfer performance of once-through steam generator under primary side disturbance

BO Lin¹, SUN Baozhi¹, GAN Yiran², DING Hongda¹, SHI Jianxin¹

1 College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China;
2 Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610041, Sichuan, China

Received:2018-03-16 Revised:2018-07-17 Online:2018-09-30 Published:2018-09-30
Supported by:
supported by the National Natural Science Foundation of China (51479040,51579048) and the Natural Science Foundation of Heilongjiang Province(E201422).

摘要/Abstract

摘要：

考虑了缺液区的存在，将直流蒸汽发生器的二次侧相变过程划分为五个传热区域，采用分布参数法建立一维均相流模型，针对一次侧冷却剂入口条件变化的工况进行仿真，分析直流蒸汽发生器内的蒸干现象和一、二次侧参数的动态响应特性。仿真结果表明，当一次侧冷却剂的入口焓值下降5%时，出口蒸汽无法达到过热，预热段和核态沸腾段长度大幅增加，蒸干点后移9.14 m；一次侧入口流量下降，出口蒸汽过热度降低，蒸干位置最大后移约2.42 m。

关键词: 直流蒸汽发生器, 均相流模型, 数学模拟, 瞬态响应, 传热

Abstract:

Considering of the liquid-deficient section, the secondary phase transformation process of the OTSG is divided into five heat transfer regions, and then build the one-dimensional homogeneous flow mathematics model based on distributed parameter method. Taking simulation for the case of the primary side coolant inlet conditions change, then analyze the phenomenon of dryout in the steam generator and dynamic response characteristics of primary and secondary side parameters. The simulation results show that the outlet steam can not reach overheating when the inlet enthalpy of the primary side coolant decreases by 5%. The length of the preheating section and the nucleation boiling section increase greatly, the dry point is moved 9.14 m.When the primary side inlet flow decreases, the overheat degree of the outlet steam is reduced, and the maximum moving distance of dry point is about 2.42 m.

Key words: once-through steam generator, homogeneous flow model, mathematical modeling, transient response, heat transfer

中图分类号:

TL33

薄琳, 孙宝芝, 干依燃, 丁宏达, 史建新. 一次扰动下直流蒸汽发生器动态换热性能仿真[J]. 化工学报, 2018, 69(S1): 64-71.

BO Lin, SUN Baozhi, GAN Yiran, DING Hongda, SHI Jianxin. Simulation of heat transfer performance of once-through steam generator under primary side disturbance[J]. CIESC Journal, 2018, 69(S1): 64-71.

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一次扰动下直流蒸汽发生器动态换热性能仿真

Simulation of heat transfer performance of once-through steam generator under primary side disturbance

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