摘要
将某燃气区域供热系统作为研究对象,基于质量、能量守恒原理,建立热网数学模型。在两种水温调节曲线下(水温调节曲线1横坐标为实际室外温度,水温调节曲线2横坐标为考虑太阳辐射得热量与自由热的当量室外温度),采用不同控制策略,对热网的响应进行仿真模拟。当采用水温调节曲线2,一级侧质量流量由实际室内温度与供暖室内设计温度之间的偏差进行补偿控制时,室内温度基本维持在供暖室内设计温度附近,热源供水温度比采用水温调节曲线1时的传统质调节方式低。
Taking a system as research object, natural gas district heating a mathematical model of heat-supply network was developed based on the prin- ciple of mass and energy conservation. The dynamic responses of heat-supply network were simulated using different control strategies under the two curves for wa- ter temperature regulation. The x-axis of the curve 1 refers to the actual outside air temperature, and the x- axis of the curve 2 refers to equivalent outdoor air tem- perature considering solar radiation and free heat. When the curve 2 is utilized, and the water mass flow rate in the primary system is controlled by the differ- ence between the measured and designed indoor air temperature, the actual indoor air temperature is close to the design value. Meanwhile, the supply water tem- perature is lower than that in the traditional tempera- ture adjustment method in terms of using the curve 1.
出处
《煤气与热力》
2016年第9期13-17,共5页
Gas & Heat
关键词
区域供热系统
数学模型
运行调节
控制策略
district heating system
mathemati-cal model
operational regulation
control strategy
