青海地区太阳能结合水源热泵供热系统技术经济分析

Technical and Economic Analysis on Solar Heating System Combined With Water Source Heat Pump in Qinghai Province

针对青海地区的气候特点及建筑供热情况,提出了一种综合利用太阳能和浅层地热能相结合的集中供热系统,介绍了系统的运行原理,结合当地的气象条件和建筑情况对复合系统进行了检测分析,结果表明节能效果十分明显,具有良好的推广价值和广泛的运用前景,即在热负荷需求较低的情况下,以太阳能供热系统为主、水源热泵供热系统为辅,可以节省运行费用;在太阳能利用受限制的气候条件下,以水源热泵供热系统为主、太阳能供热系统为辅的集中供热系统,这样达到既能保持最佳的运行效果又能获得最佳的节能性。

According to the climate and building characteristics of Qinghai region, this article proposed a building heating system that introduced the utilization of combined solar and geothermal energy. Considering the local weather and building conditions, the case for these complex systems were tested, and the results showed that the energy-saving effect was very obvious, with good promotional value and broad application prospects. In the case of lower thermal load demand, （mainly in solar heating systems）, the water source heat pump supplement can save operating costs. Under use in restricted solar weather conditions, the main water source heat pump systems supplement the solar heating systems, via the central heating system, so that both maintain the best operating results to achieve maximum energy efficiency.