河北省东部地热能项目高效应用与研究

EFFICIENT APPLICATION AND RESEARCH OF GEOTHERMAL ENERGY PROJECTS IN EASTERN HEBEI PROVINCE

以提高地热能利用为目的,根据地质勘探结果,有针对性地设计了一套采用地热能与水源热泵和空气源热泵相结合的供热系统,使地热能达到梯级利用。在河北衡水某养生庄园投入使用后,比单独使用地热能供热节约投资480万元,每年运行成本降低37万元,系统可靠,自动化程度高,地热水完全回灌且温度不高于10℃,效果良好。该实例证明该系统结合了地热能、水源热泵和空气源热泵各自的优点,补充了彼此的短板,在河北东部地区有着广泛的应用前景,对地热能系统的设计有一定的参考价值。

For the purpose of utilizing geothermal energy to the largest extent,a heating system combining geothermal energy with water-source heat pumps and air-source heat pumps is purposefully designed based on geological exploration results,so as to achieve the geothermal energy cascade use.In a health preservation manor in Hengshui,Hebei,after the aforesaid heating system is applied,the investment has declined by RMB 4.8 million and the annual operating cost has been reduced by RMB 370,000 compared to using geothermal energy alone for heating.Besides,this new system has higher reliability and automation,with the geothermal water being completely recharged and the temperature being not higher than 10℃,which has obtained good effect.This case proves that this system integrates respective advantages of geothermal energy,water-source heat pump and air-source heat pump and makes up for each other’s weaknesses,thereby being promising to be widely applied in eastern Hebei Province and owning reference value for the design of geothermal energy systems.