高原农牧区超低温空气源热泵供热性能试验研究  

Experimental Research on the Heating Performance of Ultra-Low Temperature Air Source Heat Pumps in the Agricultural and Pastoral Areas of Plateau

作　　者：刘凌 李建康 张蕊 刘陆广 黄永红 李太禄 齐静 Liu Ling;Li Jiankang;Zhang Rui;Liu Luguang;Huang Yonghong;Li Tailu;Qi Jing(Qinghai Sanli New Energy Technology Co.,Ltd.,Xining 810000,China;Hebei University of Technology,Tianjin 300000,China)

机构地区：[1]青海三力新能源技术有限公司,西宁810000 [2]河北工业大学,天津300000

出　　处：《青海科技》2024年第1期122-129,共8页Qinghai Science and Technology

基　　金：青海省重点研发与转化计划项目“青海省农牧区超低温空气源热泵采暖系统技术应用示范”(2022-GX-C19)。

摘　　要：为解决青海省农牧区的冬季供热问题,文章以超低温空气源热泵在该地区运行的热力性能为研究对象,选取了当地4户居民住宅作为空气源热泵供热技术应用试点,通过现场模拟试验测试分析了不同运行方案下的实际运行性能,以及环境温度和出水温度对系统制热性能系数及供热量的影响。测试结果表明:对住户采用二次系统双风盘加散热器供热模式的制热性能系数最高,可达2.51,且供暖期间室内平均温度保持在20℃左右,波动范围不超过5℃,供热性能较为稳定。系统COP值和供热量随着出水温度的降低、环境温度的升高均逐渐增大。当出水温度为35℃时,系统COP值始终满足最低要求。此外,当供热量一定时,采用光伏发电耦合空气源热泵系统供热比传统的燃煤供热减少碳排放量约5.23 t,证明该系统环保效益显著,可实现清洁供热。To address the winter heating problem in the agricultural and pastoral areas of Qinghai Province,this study focuses on the thermal performance of ultra-low-temperature air source heat pumps operating in the region.Four local residential houses were selected as pilot sites for the application of air source heat pump heating technology.Through on-site simulation tests,the actual operational performance under different operating scenarios was analyzed,along with the impact of environmental temperature and outlet water temperature on the system’s heating coefficient of performance(COP)and heating capacity.The test results indicate that the highest heating COP,reaching 2.51,is achieved when adopting the heating mode of a secondary system with dual air ducts and radiators for households.During the heating period,the indoor average temperature is maintained around 20℃,with fluctuations not exceeding 5℃,demonstrating stable heating performance.The system’s COP and heating capacity gradually increase with the decrease in outlet water temperature and the increase in environmental temperature.When the outlet water temperature is 35℃,the system’s COP always meets the minimum requirements.Moreover,when the heating capacity is constant,using a photovoltaic coupled air source heat pump system for heating reduces carbon emissions by 5.23 t compared to traditional coal-fired heating,proving the significant environmental benefits of the system and its potential for clean heating.

关 键 词：超低温空气源热泵 制热性能系数 光伏发电 碳排放 环保效益 

分 类 号：TU832[建筑科学—供热、供燃气、通风及空调工程]