Thermoelectric relationship of a heat supply unit equipped with Li Br absorption heat pump

WANG Xingguo; JIANG Kuizhen; HAN Zhonghe; LU Shengyang; YANG Haisheng

doi:10.19666/j.rlfd.201803076

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Thermoelectric relationship of a heat supply unit equipped with Li Br absorption heat pump

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- Thermoelectric relationship of a heat supply unit equipped with Li Br absorption heat pump
- Thermal Power Generation Vol. 47, Issue 8, Pages: 79-84(2018)
- 作者机构：
  
  1. 国网河北能源技术服务有限公司
  2. 国网河北省电力有限公司电力科学研究院
  3. 华北电力大学能源动力与机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201803076
  CLC： TK262
- Published Online：02 August 2018，
  
  Published：2018
- 稿件说明：
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WANG Xingguo, JIANG Kuizhen, HAN Zhonghe, et al. Thermoelectric relationship of a heat supply unit equipped with Li Br absorption heat pump[J]. Thermal power generation, 2018, 47(8): 79-84.
DOI：

WANG Xingguo, JIANG Kuizhen, HAN Zhonghe, et al. Thermoelectric relationship of a heat supply unit equipped with Li Br absorption heat pump[J]. Thermal power generation, 2018, 47(8): 79-84. DOI： 10.19666/j.rlfd.201803076.

摘要

为消纳风电

供热机组在承担供热任务要求的同时需要尽可能参与电网调峰。供热机组配置溴化锂吸收式热泵

在回收循环水余热的同时扩大了机组的供热能力

其热电关系需要进一步分析确定。本文建立了国产某300 MW供热机组模型

分析其加装热泵前后热电关系的变化。结果表明:在配置2台单机容量为46.6 MW溴化锂吸收式热泵后

供热负荷增加了39 MW

同时在给定热负荷下电负荷可变范围最大可扩大9%;实际运行中

循环水温度变化对机组最小发电量影响较大

而热网回水温度对机组热电关系几乎无影响。

Abstract

In order to solve the problem of wind power accommodation

the heat supply units need to participate in peak regulation of the power grid as much as possible while undertaking the requirements for heating task. The heat supply unit is equipped with a Li Br absorption heat pump

which can recover the residual heat of the circulating water and increase the heat capacity of the unit. The thermoelectric relationship needs to be further analyzed and determined. A domestic model of a 300 MW heating unit is established to analyze the change in the thermoelectric relationship before and after the installation of the heat pump. The results show that

after the installation of two 46.6 MW Li Br absorption heat pumps

the heating load increases by 39 MW. At the same time

the maximum variable load range of the electric load at a given heat load can be increased by 9%. In actual operation

the change of circulating water temperature has a great influence on the minimum generating capacity of the unit

while the return water temperature of the heating network has little effect on the unit's thermoelectric relationship.

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