[1]章臣樾,范仲元,李保庆.自然循环锅炉的动态计算和变压运行浅论[J].东南大学学报(自然科学版),1982,12(2):51-60.[doi:10.3969/j.issn.1001-0505.1982.02.005]
Chang Chen-yueh,Fan Chong-yuan,and Li Bao-qin.Dynamic Calculation of a Natural Circulation Boiler and Discussion about Its Variable Pressure Operation[J].Journal of Southeast University (Natural Science Edition),1982,12(2):51-60.[doi:10.3969/j.issn.1001-0505.1982.02.005]
点击复制
自然循环锅炉的动态计算和变压运行浅论(
)
《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]
- 卷:
-
12
- 期数:
-
1982年第2期
- 页码:
-
51-60
- 栏目:
-
本刊信息
- 出版日期:
-
1982-06-20
文章信息/Info
- Title:
-
Dynamic Calculation of a Natural Circulation Boiler and Discussion about Its Variable Pressure Operation
- 作者:
-
章臣樾; 范仲元; 李保庆
-
undefined
- Author(s):
-
Chang Chen-yueh; Fan Chong-yuan; and Li Bao-qin
-
-
- 关键词:
-
自然循环锅炉; 变压运行; 燃料量; 动态计算; 汽机调门开度; 水冷壁; 机组; 省煤器; 对流过热器; 高压缸
- 分类号:
-
+
- DOI:
-
10.3969/j.issn.1001-0505.1982.02.005
- 摘要:
-
本文以带有自然循环锅炉的20万瓩机组为例,说明了它的动态数学模型,并根据数字计算机得出的结果、示出几种操作量改变后机组主要参量的动态过程,加以讨论。当燃料量一次跃变后,蒸汽压力和汽机功率的响应很慢,而在过渡过程中汽温变化率对机组的某些部件可能达到危险的程度;如果同时改变汽机调门的开度,上述情况会得到很大的改善。对于将以变压方式运行的自然循环锅炉,本文内容可供参考。
- Abstract:
-
Taking a 200MW unit with a natural-circulation boiler as an example, this paper presents a model of boiler dynamics.Based upon the results of calcul-ation on a digital computer, the transient behaviors of the unit are discussed.For a step change in fuel flow rate only, the steam pressure and turbine out-put respond very slowly.But the rate of change in stearin temperature in the transient process may be dangerous for certain thick-walled elements.The situ-ation can be improved to a large extent by a simultaneous change in the tur-bine governor valve position.It is suggested that all these facts should be consi-dered for a natural circulation boiler to be operated in the variable-pressure mode.
更新日期/Last Update:
2013-05-01