Study on Flexible Transformation Mode of Cogeneration Unit

Jiashuai Hou

《International Core Journal of Engineering》 7卷5期 (2021/05) Pp. 165-171

https://doi.org/10.6919/ICJE.202105_7(5).0021

摘要

Most of the units installed in the ＂three north＂ areas of China are cogeneration units. When there is a large demand for heating in the heating season, the cogeneration units in the power plant adopt the operation mode of ＂setting power by heat＂ to meet the heating load. Under this operation mode, not only the unit's regulation ability is poor, but also the power plant unit is difficult to obtain profits from it. At the same time, a large amount of ＂abandoned wind＂ will be generated and the environment will be polluted. Based on this, it is particularly important to extend and renovate the adjustable range of the existing units in the cogeneration power plant, and the economic analysis before and after the renovation is an important choice factor for the power plant to choose the renovation method. This article enumerated nowadays common cogeneration unit transformation technology, analyzes its modified equivalent figure of power generation, heating unit, thermoelectric power adjustable range of the unit before and after transformation is given, to analyze its thermoelectric decoupling ability, at the same time for different transformation way of economic analysis are summarized, the hope for cogeneration unit enterprise flexibility provide certain help.

關鍵字

Cogeneration of Heat and Power ； Flexible Transformation ； Economy ； Wind Abandonment ； Thermoelectric Decoupling

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