Analyses on Heat-Power Decoupling Potential and Energy Consumption Characteristics for CHP Plant Integrated With Heat Pump

Zhongqiu LIU; Guozhu ZHANG; Yinchen QIU; Juntai ZHANG; Shan WANG; Ming LIU

doi:10.12096/j.2096-4528.pgt.19073

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Analyses on Heat-Power Decoupling Potential and Energy Consumption Characteristics for CHP Plant Integrated With Heat Pump

Energy Clean and Efficient Utilization in Coal-fired Power Systems | 更新时间：2025-07-04

- Analyses on Heat-Power Decoupling Potential and Energy Consumption Characteristics for CHP Plant Integrated With Heat Pump
- Power Generation Technology Vol. 40, Issue 3, Pages: 253-257(2019)
- 作者机构：
  
  1.大唐(北京)能源管理有限公司, 北京市海淀区 100097
  2.动力工程多相流国家重点实验室(西安交通大学), 陕西省西安市 710049
- 作者简介：
- 基金信息：
  
  National Key Research and Development Program(2018YFB0604405);Innovation Capability Support Plan of Shaanxi Province(2018TD-014)
- DOI：10.12096/j.2096-4528.pgt.19073
  CLC：
- Received：06 May 2019，
  
  Published：30 June 2019
- 稿件说明：
移动端阅览
Zhongqiu LIU, Guozhu ZHANG, Yinchen QIU, et al. Analyses on Heat-Power Decoupling Potential and Energy Consumption Characteristics for CHP Plant Integrated With Heat Pump[J]. Power Generation Technology, 2019, 40(3): 253-257.
DOI：

Zhongqiu LIU, Guozhu ZHANG, Yinchen QIU, et al. Analyses on Heat-Power Decoupling Potential and Energy Consumption Characteristics for CHP Plant Integrated With Heat Pump[J]. Power Generation Technology, 2019, 40(3): 253-257. DOI： 10.12096/j.2096-4528.pgt.19073.

摘要

在热电联产机组中集成机械式热泵可以实现热电解耦，并影响机组的能耗特性。以某350MW热电联产机组为例，建立了供热机组变工况计算模型以及机械式热泵供热计算模型，比较了热电联产机组采用抽汽供热和压缩式热泵供热时最低电负荷率及煤耗量的差别，同时研究了热泵性能系数、电负荷率、热负荷率对机组能耗特性的影响规律。结果表明：在基准工况下，压缩式热泵供热较热电联产节能，且其机组的电负荷可调节范围更大。压缩式热泵供热相比抽汽供热减少的煤耗量随着热泵实际性能系数

COP1

、热负荷率增大而增大，随着电负荷率增大而减少，

COP1

为6.119，热负荷率为2.5，电负荷率为0.8时，节煤率为2.60%。

Abstract

The integration of heat pump can realize heat-power decoupling

and would influence the energy consumption characteristics of combined heat and power cogeneration plants (CHP). Therefore

a 350MW CHP unit was taken as a reference case

and the off-design calculation models of CHP unit and the heating calculation models of heat pump were established. The minimum p

ower load rate and the coal consumption rate of the CHP plants with steam extraction and heat pump to supply heat were compared. The influences of the heat pump performance coefficient

the power load rate and the heat load rate on energy consumption characteristics of CHP plants were also studied. Results show that the compression heat pump can save energy on benchmark condition and its power load regulation range is also greater. The coal saving rate increases with the increase of

COP1

and heat load rate

and decreases as power load rate increases. When the

COP1

is 6.119

the heat load rate is 2.5

and the electric load rate is 0.8

the coal saving rate is 2.60%.

关键词

Keywords

references

张广才, 周科, 鲁芬, 等.燃煤机组深度调峰技术探讨[J].热力发电, 2017, 49(9):17-23.

刘豫龙.胜利发电厂2号机组变工况运行经济性分析[J].洁净煤技术, 2006(2):1-5.

王永庆, 张宏, 苏耕, 等.热电联产机组节能发电组合研究[J].电网与清洁能源, 2013, 29(12):45-49.

史毅越.抽汽式汽轮机的模型辨识及热电解耦[D].南京: 东南大学, 2014. http://d.wanfangdata.com.cn/Thesis/Y2707214 .

董云风, 吕少胜.大型热电厂热电解耦方式选择[J].工程建设与设计, 2018(1):62-63.

李树明, 刘青松, 朱小东, 等.350MW超临界热电联产机组灵活性改造分析[J].发电技术, 2018, 39(5):449-454.

苏雪刚, 卢丽坤, 唐卉, 等.大型蓄热水罐在热电解耦中的应用[J].锅炉制造, 2018(1):46-18.

李奕.2×300 MW汽轮机双机循环水余热供热系统[J].发电技术, 2018, 39(3):244-248.

王长河, 陈光, 王宝玉.基于吸收式热泵的大型火电厂冷凝废热回收技术研究[J].制冷空调与电力机械, 2011(4):67.

费盼峰, 孙士恩, 冯亦武, 等.联合循环电厂大型吸收式热泵余热回收系统在线性能检测的研究与应用[J].发电与空调, 2014, 32(1):11-15.

张学镭, 陈海平.回收循环水余热的热泵供热系统热力性能分析[J].中国电机工程学报, 2013, 33(8):1-8.

袁周华.基于洗浴废水热能梯度利用的高效节能制热水系统[J].可再生能源, 2016, 34(4):579-582.

吕太, 刘玲玲.热泵技术回收电厂冷凝热供热方案研究[J].东北电力大学学报, 2011, 31(1):6-10.

王力彪, 李染生, 王斌, 等.基于吸收式热泵的循环水余热利用技术在大型抽凝机组热电联产中的应用[J].汽轮机技术, 2011, 53(6):470-472.

刘军, 刘海生.压缩式热泵热水机组在中央热水系统中的应用实例[J].能源技术, 2004, 25(3):112-114.

朱斌帅, 张赟.电厂集中供热领域中吸收式热泵与压缩式热泵的经济性比较[J].节能技术, 2016, 34(5):440-443.

林万超.火电厂热力系统节能理论[M].西安:西安交通大学出版社, 1994:80-91.

严俊杰, 邢秦安, 林万超, 等.火电厂热力系统经济性诊断理论及应用[M].西安:西安交通大学出版社, 2008:3-26.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analysis on Thermoelectric Decoupling Technology Paths for Thermal Power Units Under the Background of Deep Peak-Shaving

Status and Prospect of Waste Heat Utilization in Power Plant

Heat Supply System of 2×300MW Units' Circulating Water Waste Heat

Related Author

ZHENG Qiwei

WANG Huating

CHEN Heng

PAN Peiyuan

XU Gang

Dazhou ZHAO

Bo LIU

He ZHANG

Related Institution

School of Energy, Power and Mechanical Engineering, North China Electric Power University, Changping District

Collage of Energy Engineering, Zhejiang University

Huadian Electric Power Research Institute Co., Ltd.

Department of Safety and Production of China Datang Corporation, Xicheng District

Jiangsu Institute of Economic & Trade Technology

AI问答

⁰