抽灌同井运行特性实验研究——以上海地区为例
发布时间：2018-08-07 18:16
【摘要】：针对抽灌同井运行特性的研究不足,利用单井循环地下换热系统砂箱实验台,以上海地区的采暖期和空调期的时间尺度为依据,开展了抽灌同井夏冬、冬夏两种运行模式下运行特性的实验研究。结果表明,该砂箱实验台中的含水层热量流失较快,放热工况下热源井排放热量较容易,取热工况下热源井提取热量较困难。抽灌同井在冷负荷占优的地区运行时,需要采用辅助技术手段,分担地下含水层承担的供冷负荷,保证系统长期可靠运行。建议系统先进行冬季取热工况的运行,提取含水层储热量;继而进行夏季排热工况,保持热源井较低的抽水温度,提高热泵机组效率。
[Abstract]:In view of the lack of research on the operation characteristics of the same well, a single well circulating underground heat transfer system sand box test bench is used to carry out the pumping and irrigation in the same well in summer and winter based on the time scale of heating and air conditioning period in Shanghai area. Experimental study on operating characteristics of two operating modes in winter and summer. The results show that the heat loss of the aquifer in the sand box test bench is faster, the heat discharge from the heat source well is easier under the heat release condition, and the heat extraction from the heat source well under the heat removal condition is more difficult. When pumping and irrigation wells operate in areas where the cooling load is dominant, auxiliary technical means should be adopted to share the cooling load borne by the underground aquifer, so as to ensure the long-term reliable operation of the system. It is suggested that the system should first carry out the operation of the heat recovery condition in winter to extract the heat storage of the aquifer and then carry out the heat discharge condition in summer to maintain the low pumping temperature of the heat source well and improve the efficiency of the heat pump unit.
【作者单位】： 北方工业大学土木工程学院;哈尔滨工业大学市政环境工程学院;
【基金】：国家自然科学基金(41002085,41602278) 中国博士后科学基金(2016M601129) 供热供燃气通风及空调工程北京市重点实验室研究基金 北方工业大学青年拔尖人才培育计划资助
【分类号】：TU83
，
本文编号：2170916
[Abstract]:In view of the lack of research on the operation characteristics of the same well, a single well circulating underground heat transfer system sand box test bench is used to carry out the pumping and irrigation in the same well in summer and winter based on the time scale of heating and air conditioning period in Shanghai area. Experimental study on operating characteristics of two operating modes in winter and summer. The results show that the heat loss of the aquifer in the sand box test bench is faster, the heat discharge from the heat source well is easier under the heat release condition, and the heat extraction from the heat source well under the heat removal condition is more difficult. When pumping and irrigation wells operate in areas where the cooling load is dominant, auxiliary technical means should be adopted to share the cooling load borne by the underground aquifer, so as to ensure the long-term reliable operation of the system. It is suggested that the system should first carry out the operation of the heat recovery condition in winter to extract the heat storage of the aquifer and then carry out the heat discharge condition in summer to maintain the low pumping temperature of the heat source well and improve the efficiency of the heat pump unit.
【作者单位】： 北方工业大学土木工程学院;哈尔滨工业大学市政环境工程学院;
【基金】：国家自然科学基金(41002085,41602278) 中国博士后科学基金(2016M601129) 供热供燃气通风及空调工程北京市重点实验室研究基金 北方工业大学青年拔尖人才培育计划资助
【分类号】：TU83
，
本文编号：2170916
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