综合能源服务项目新增热泵系统的案例分析

doi:10.3969/j.issn.2097-0706.2022.01.010

摘要/Abstract

摘要：

系统配置是综合能源服务项目节能经济性的核心因素,研究配置多能互补的能源供应体系是综合能源服务的重要任务。多能互补系统是传统分布式能源应用的拓展,是可包容多种能源资源输入,并具有多种产出功能和输运形式的“区域能源互联网”系统。多能互补的能源供应体系应根据用户的冷热电需求、负荷特性及各种能源价格,结合单个设备的效率制定出系统的运行策略,平衡经济性及环境效益后合理配置。结合北方某园区天然气分布式能源系统实例,通过收集、调研园区近3年的冷热电负荷数据,对供能系统的运行方式、综合能源利用效率及经济效益进行了深入分析,论证了在原系统中增加空气源热泵及烟气余热回收热泵的必要性和经济性,可为相关区域综合能源多能互补系统项目提供参考。

关键词: 分布式能源, 综合能源服务, 多能互补, 空气源热泵, 烟气余热回收热泵, 能源互联网

Abstract:

As the core factor affecting the energy-saving economy of an integrated energy service project,studying the configuration of a multi-energy complementary energy system is a crucial task in integrated energy services.The multi-energy complementary system is an extension of traditional distributed energy applications.It is a "regional energy internet" system that accommodates multiple energy resources,various outputs and transportation forms.The multi-energy complementary energy system can make an operation strategy based on user's cooling,heating and power demand,load characteristics and price of different energy.The strategy should fully consider the efficiency of a single unit and make a reasonable configuration that balances economic and environmental benefits.Taking a natural gas distributed energy system of an industrial park in northern China as an example,the operation mode,comprehensive energy utilization efficiency and economic benefits of the energy system is analyzed intensively by collecting and studying the data of cold,hot and electric loads of the park in the past three years.The analysis results demonstrates the necessity and economy of configuring air source heat pumps and flue gas waste heat recovery heat pumps in multi-energy complementary energy systems,which can provide a reference for the following regional multi-energy complementary energy systems.

Key words: distribution energy, integrated energy service, multi-energy complementation, air source heat pump, flue gas waste heat recovery heat pump, energy internet

中图分类号:

TK01

余莉, 徐静静, 马兰芳, 王佑天. 综合能源服务项目新增热泵系统的案例分析[J]. 综合智慧能源, 2022, 44(1): 72-79.

YU Li, XU Jingjing, MA Lanfang, WANG Youtian. Case study on the integrated energy service project with newly installed heat pumps[J]. Integrated Intelligent Energy, 2022, 44(1): 72-79.

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供能形式	供热量/GJ	COP	耗气/耗电	运行费/元
直燃机	1.00	0.938	31.57 m³	87.45^①
空气源热泵	1.00	2.400	115.74 kW·h	34.99^②
空气源热泵	1.00	2.400	115.74 kW·h	90.94^③

供能形式	供冷量/GJ	COP	耗气/耗电	运行费/元
直燃机	1.00	1.360	21.77 m³	53.35^①
空气源热泵	1.00	3.600^④	77.16 kW·h	23.33^②
空气源热泵	1.00	3.600^④	77.16 kW·h	60.63^③

项目		空气源热泵运行方案	余热机+直燃机运行方案
收入	售电收入	172.21^①	177.69^②
收入	售热收入	221.71	221.71
成本	购电费用	46.07	5.79
	供热机组耗电	50.05	0.00（机组厂用电扣除）
	供热耗气	0.00	157.01
收入-成本		297.81	236.60

项目		空气源热泵+直燃机运行方案	余热机+直燃机运行方案
收入	售电收入	172.21^①	177.69^②
收入	售热收入	221.71^③	221.71
成本	产业园用户购电	46.07	5.79
	供热机组耗电	37.54	0.00（机组厂用电扣除）
	供热耗气	31.27	157.01
收入-成本		279.04	236.60

供能形式	供热量/GJ	COP	耗气/耗电	运行费/元
直燃机	1.00	0.938	31.57 m³	87.45
烟气余热回收系统	1.00	5.120	54.25 kW·h	42.62