集中供热燃气调峰锅炉房对燃气供应系统影响.pdf

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Dissertation for the Master Degree in Engineering

IMPACT OF PEAK LOAD GAS BOILER
ROOMS OF DISTRICT HEATING OVER
THE GAS SUPPLY SYSTERM






Candidate: Yao Huajiao
Supervisor: Prof. Jiao Wenling
Academic Degree Applied for: Master of Engineering
Speciality: Heating, Gas Supplying, Ventilating
& Air conditioning Engineering
Affiliation: School of Municipal and Environmental
Engineering
Date of Defence: June, 2008
Degree-Conferring-Institution: Harbin Institute of Technology
摘要
摘要
集中供热是我国现在最基本的供热方式,而其设计热负荷只是在室外气温
低于采暖室外计算温度时才出现,时间很短,我国传统的做法是按设计热负荷
来选择热源,但是从节能的角度考虑,应该采用基本热源和调峰热源联合供热
的方式,即把最大热负荷乘以一个小于 1 的系数作为选择基本热源的依据,从
而使供热基本热源的最大负荷利用小时数增加。
目前,国家的能源政策鼓励使用天然气,小型燃煤锅炉逐渐被取消,并且
燃气锅炉有启停方便,环保等优点,因此,集中供热系统采用燃气锅炉房进行
调峰成为发展趋势。供热系统采用燃气调峰必然对城市燃气供应系统造成影响。
城市燃气用户用气情况是不均匀的,城市燃气用户用气的不均匀性的研究和调
峰手段的确定不仅关系到整个管网系统的优化设计和经济性,还关系到能否保
证按用户的要求供气。需要从燃气用气不均匀性,机动气源和储气设施等方面
研究燃气调峰锅炉房对燃气供应系统的影响。
本文首先对用燃气锅炉房调峰的供热系统进行了探讨,得出了调峰启动室
外温度、调峰小时数及调峰燃气量等参数的计算方法,并编制了 MATLAB 计算
程序。研究了燃气调峰锅炉房对燃气供应不均匀性的影响,揭示了对燃气供应
不均匀性的影响规律,得出季节中的高峰时段的不均匀特性。分析了各种机动气
源和储气设施的技术经济适应性,结合北方某市用气情况,分析各种天然气储
气方式使用的可行性以及燃气供应系统调峰的优化配置方法。探讨了燃气调峰
锅炉房的燃气供应安全的策略和方法问题。

关键词供热调峰;燃气;不均匀性;机动气源;储气设施;安全策略





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哈尔滨工业大学工学硕士学位论文
Abstract
District heating is now the most basic heating way of China, and the design
heating load appears only when the outdoor temperature is below the outdoor design
temperature for heating, so we should not select the basic heat source according to
the design heating load, we bine both basic heat source and peak load
heat source, which multiply the design heating load by a coefficient less than 1 as the
basis for the choice of the basic heat source, thus it will increase the number of
utilization hours of the basic heat source.
At present, our national energy policy encourage the use of natural gas,
small-scale coal-fired boiler rooms have been gradually abolished,