Characteristic analysis for combined heat and power units with thermal storage device based on graph method
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Characteristic analysis for combined heat and power units with thermal storage device based on graph method
Thermal Power GenerationVol. 46, Issue 11, Pages: 57-60(2017)
作者机构:
华北电力大学控制与计算机工程学院
作者简介:
基金信息:
DOI:
CLC:TM621
Published:2017
稿件说明:
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WANG Yaohan, ZENG Deliang, CHEN Kai. Characteristic analysis for combined heat and power units with thermal storage device based on graph method[J]. Thermal power generation, 2017, 46(11): 57-60.
DOI:
WANG Yaohan, ZENG Deliang, CHEN Kai. Characteristic analysis for combined heat and power units with thermal storage device based on graph method[J]. Thermal power generation, 2017, 46(11): 57-60.DOI:
Characteristic analysis for combined heat and power units with thermal storage device based on graph method
摘要
供热机组以热定电的运行方式导致其调峰能力不足
储热罐作为一种蓄能手段能够从一定程度上实现供热机组热电解耦
提高机组调峰能力。本文采用图解法分析了储热罐与供热机组的热力学特性以及配备储热罐的供热机组运行特性
通过计算储热罐储热流量范围
分析了供热机组调峰能力区间。结果表明
该方法原理简单
计算量小
可拟合出储热罐与供热抽汽系统运行的定值曲线
为机组的安全灵活运行提供指导。
Abstract
The "power determined by heat" operation mode limits the peak regulation ability of combined heat and power(CHP) units. As an energy storage method
thermal storage device can solve the power-heat decoupling problem and enhance the load peak regulation capacity of units. By using the graph method
the thermodynamic behavior of CHP unit equipped with thermal storage device was investigated. The heat accumulation rate of the thermal storage device was constrained
and the peak regulation ability of CHP units with thermal storage device was calculated. The result shows the presented method can gain the operation setpoint of CHP unit and its thermal storage device briefly and intuitively
which provides guidance for safe and flexible operation of the unit.