神农大酒店地源热泵空调系统技术方案分析

为了提高地源热泵空调系统的能效比并降低地源热泵空调系统地埋换热器的换热器面积,减小系统投资,对神农大酒店地源热泵空调系统采用不同技术方案,从系统热负荷、全年不平衡热负荷、冷却水流量、系统能效比等几方面进行理论分析,经综合比较,采用冷热一体机与热水机串联+冷却塔辅助散热的复合式系统方案优于其他方案。但此方案受制于目前市场上冷热一体机的冷凝器和热水机蒸发器的循环水流通截面积不相等,引起流动阻力增加,影响使用效果。因此开发出冷热一体机的冷凝器和热水机蒸发器的循环水流通截面积相等的产品,是科研工作者和生产厂家要解决的首要问题。

Analysis on Technology Scheme of Ground-Source Heat Pump System in Shennong Hotel

In order to improve the energy efficiency of ground-source heat pump system and reduce the system underground heat exchanger area and to lower the system investment, different technical solutions are considered in ground-source heat pump system of Shennong Hotel. After comprehensively analyzing and comparing the system heat load, the annual unbalance heat load , cooling water flow and the system energy efficiency of different solutions, the scheme of cooling and heating integrative machine with water heater series connection and cooling tower auxiliary radiation hybrid system outperforms the other schemes. However, the scheme is subject to the unequal cross-sectional area between the condenser of cooling and heating machine and the evaporator of water heater, resulting in flow resistance increases and affecting the use effect. Therefore, the key issue for researchers and manufacturers is to develop the matching condenser and evaporator with equal circulating water flow area.