建筑工地内直膨式太阳能热泵热水器运行方法研究  

Research on Operation and Energy Consumption Management Method of Direct Expansion Solar Heat Pump Water Heater in Construction Site

作　　者：袁春保 刘创业 杨腾飞 史山山 Yuan Chunbao;Liu Chuangye;Yang Tengfei;Shi Shanshan(China Construction Seventh Engineering Bureau Co.,Zhengzhou,450048)

机构地区：[1]中国建筑第七工程局有限公司,郑州450048

出　　处：《制冷与空调（四川）》2022年第6期957-962,共6页Refrigeration and Air Conditioning

摘　　要：随着我国基建行业的发展,施工人员对建筑工地生活环境的要求也逐渐升高。针对建筑工地上直膨式太阳能热泵热水器运行稳定性与太阳能热泵利用效率不足的问题,提出了改进的热水器电子膨胀阀控制算法和压缩机转速调节算法,并以某建筑施工工地为例,对改进后的直膨式太阳能热泵热水器系统性能进行测试。实验结果显示,在建筑工地环境中,该热水器加热时间误差小于4.5%,在夏季、冬季工况中的日均耗电量分别为1.12kWh/天、2.36kWh/天,较改进前的热水器均有显著减少。实验结果表明,本研究设计的改进直膨式太阳能热泵热水器较改进前,能适应具有高热水控温精度要求的建筑工地的使用环境,而传统的直膨式太阳能热泵热水器很难适应这种应用环境。With the development of China’s infrastructure industry, the requirements of construction workers on the living environment of construction sites are also gradually increasing. Aiming at the problems of the operating stability of the direct expansion solar heat pump water heater and the insufficient utilization efficiency of the solar heat pump on the construction site,this study puts forward the improved control algorithm of the electronic expansion valve of the water heater and the compressor speed adjustment algorithm, and takes a construction site as an example to test the performance of the improved direct expansion solar heat pump water heater system. The experimental results show that in the construction site environment, the heating time error of the water heater is less than 4.5%, and the daily average power consumption in summer and winter is 1.12kWh/day and2.36kWh/day respectively, which is significantly reduced compared with the water heater before the improvement. The experimental results show that the improved direct expansion solar heat pump water heater designed in this study can better adapt to the use environment of construction sites than before.

关 键 词：建筑工地 直膨式太阳能热泵热水器 稳定性 电子膨胀阀 压缩机 

分 类 号：TQ051[化学工程]