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中南大学学报(自然科学版)

Journal of Central South University

第47卷    第4期    总第260期    2016年4月

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文章编号:1672-7207(2016)04-1391-09
增压锅炉紧急降负荷能力及其特性分析
李玖江1,金家善1,倪何1,严志腾1,朱泳2

(1. 海军工程大学 动力工程学院,湖北 武汉,430033)
2. 海军装备部驻上海地区军事代表局,上海,310000
)

摘 要: 针对增压锅炉在紧急降负荷过程中的突然熄火现象,进行增压锅炉装置降负荷特性研究。在一定假设和简化条件下,将增压锅炉装置划分为涡轮增压机组、空气夹层、炉膛、风道系统、烟气系统5个模块,并由此建立增压锅炉紧急降负荷过程的数学模型。利用建立的模型对某型船用增压锅炉装置进行仿真研究。研究结果表明:该型锅炉的最大降负荷能力为49.709%,考虑到必需的安全余量,建议降负荷程度不超过全负荷45%的紧急降负荷。

 

关键词: 增压锅炉;降负荷能力;仿真建模;锅炉动态特性

Emergency down-load capacity and characteristic of supercharged boiler
LI Jiujiang1, JIN Jiashan1, NI He1, YAN Zhiteng1, ZHU Yong2

1. College of Power Engineering, Naval University of Engineering, Wuhan 430033, China;
2. Shanghai Military Representative Bureau of Navy Equipment Department, Shanghai 310000, China

Abstract:Focused on the phenomenon of suddenly flameout during the process of reducing the load of supercharged boiler emergently, the down-load characteristics of supercharged boiler were studied. Under certain assumptions and simplifications, supercharged boiler was divided into five modules of turbo-charging unit, air samdwich, furnace, duct system, and gas system, and thus the model of supercharged boiler emergency down-load was established. Based on the established model, a certain type of marine supercharged was simulated. The results show that the maximum down-load capacity of this type boiler is 49.709%, in view of safety margin, giving an advice that the maximum down-load quantity must under 45% of full load.

 

Key words: supercharged boiler; down-load capacity; simulation and modeling; boiler dynamic characteristics

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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