Effect of absorption heat pump on peak regulation capacity of combined heat and power unit

ZHANG Dou; ZHANG Guangming; NIU Yuguang; LI Hong; ZHOU Zhenhua

doi:10.19666/j.rlfd.202103095

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Effect of absorption heat pump on peak regulation capacity of combined heat and power unit

更新时间：2025-09-28

- Effect of absorption heat pump on peak regulation capacity of combined heat and power unit
- Thermal Power Generation Vol. 50, Issue 10, Pages: 95-100(2021)
- 作者机构：
  
  1. 新能源电力系统国家重点实验室(华北电力大学)
  2. 国电电力大连庄河发电有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202103095
  CLC： TU83
- Published：2021
- 稿件说明：
移动端阅览
ZHANG Dou, ZHANG Guangming, NIU Yuguang, et al. Effect of absorption heat pump on peak regulation capacity of combined heat and power unit[J]. Thermal power generation, 2021, 50(10): 95-100.
DOI：

ZHANG Dou, ZHANG Guangming, NIU Yuguang, et al. Effect of absorption heat pump on peak regulation capacity of combined heat and power unit[J]. Thermal power generation, 2021, 50(10): 95-100. DOI： 10.19666/j.rlfd.202103095.

摘要

吸收式热泵能有效改善热电联产机组的电热耦合现象

提高机组运行灵活性。根据吸收式热泵运行原理

建立了通用热电联产机组加装吸收式热泵前后的运行安全区模型。以某典型330 MW机组为例

绘制其运行安全区

分析了热泵制热系数对机组供热能力和运行安全区的影响

定量计算了机组调峰能力随供热抽汽流量及热泵制热系数的变化关系。分析和计算结果表明

机组的运行安全区及调峰能力经热泵改造后有明显增加

且随着热泵制热系数的提高而增大

这一特点在供热抽汽流量大时尤为明显。

Abstract

The absorption heat pump can effectively improve the power-heat decoupling phenomenon and enhance the operating flexibility of the combined heat and power unit(CHP). According to the operating principle of the absorption heat pump

the models of operating safety zone of the general CHP unit before and after the installation of absorption heat pumps are established. Taking a typical 330 MW CHP unit as an example

the operating safety zone is drawn

the influence of the coefficient of performance(COP) of the absorption heat pump on the heating supply capacity and operating safety zone of the unit is analyzed

and the change rules of peak regulation capacity with the heat extraction steam flow rate and COP of the heat pump are calculated. The results show that

the operating safety region and peak regulation capacity of the CHP unit have been improved significantly after the heat pump modification

and the peak regulation capacity increases with the COP

which is especially obvious when the heat steam flow rate is high.

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