浅层承压含水层水源热泵系统储能特性研究  

Research on Energy Storage Characteristics of Water Source Heat Pump System in Shallow Confined Aquifer

作　　者：崔震 苏美亮 李亮 CUI Zhen;SU Meiliang;LI Liang(North China Power Engineering Co.,Ltd.of China Power Engineering Consulting Group,Beijing 100120,China)

机构地区：[1]中国电力工程顾问集团华北电力设计院有限公司,北京100120

出　　处：《电力勘测设计》2023年第S02期180-185,共6页Electric Power Survey & Design

摘　　要：以浅层承压含水层作为水源热泵系统的主要储能载体,采用FeFlow有限元软件对水源热泵系统连续运行3年的储能井温度及地下含水层温度场进行模拟计算。根据模拟结果,供热期间浅层水源热泵系统能够在含水层内储存冷量,冷井中心处温度最大可降低约12℃,供冷的同时在含水层内储存热量,热井中心处温度最大可升高约7℃,从而有效减少供热及供冷期的能耗,起到反季节储能的效果。结合区域地质条件及含水层特性,分析得出,含水层的渗透系数越大、孔隙度越小,其储能影响范围越大,越不利于储能范围控制与地下生态环境的保护。Using shallow confined aquifers as the main energy storage carrier for water source heat pump systems,the FeFlow finite element software was used to simulate and calculate the temperature field of the energy storage well and underground aquifer of the water source heat pump system during continuous operation for 3 years.According to simulation results,the shallow water source heat pump system can store cold energy in the aquifer during the heating period.The maximum temperature at the center of the cold well can be reduced by about 12℃,while storing heat in the aquifer during the cooling period.The maximum temperature at the center of the hot well can be increased by about 7℃,effectively reducing energy consumption during the heating and cooling periods,and achieving the effect of offseason energy storage.Based on regional geological conditions and aquifer characteristics,analysis shows that,the larger the hydraulic conductivity and the smaller the porosity of the aquifer,the greater the range of its energy storage influence.The more unfavorable is the control of energy storage range and the protection of underground ecological environment.

关 键 词：水源热泵 含水层储能 温度场 渗透系数 

分 类 号：TU4[建筑科学—土工工程]