大体量热水锅炉供热系统非供热季维护的研究和应用

简要分析大体量热水供热系统非供热季的各种维护保养方式,比较其优缺点,并提出针对虹桥西区能源中心的维护保养建议。对采用湿保养法维护锅炉所进行的水质维护带来的非使用性能耗问题的解决方案,从多角度全方面的研究解决方案,进行可行性研究。最终提出大体量热水系统非供热季水质维护在今后设计阶段的一般性建议。

空气源热泵在学生公寓的热水改造工程中的应用

以重庆某学校采用燃气锅炉房作为热源的洗浴热水加热系统作为研究对象。对热水系统日用热量进行了分析。对原加热系统提出两种改造方案:空气源热泵加热系统、太阳能辅助空气源加热系统,探讨了这两种加热系统的系统流程,与原加热系统的年运行费用进行了比较,太阳能加热系统的年运行费用最低。

Heat balance of solar-soil source heat pump compound system

Based on the state-of-the-art studies of solar-soil source heat pump compound system, operation patterns of solar-soil compound system were analyzed, particularly the advantages of parallel operation pattern. It is found that parallel operation pattern is better for solar-soil compound system. Furthermore, the heat balance issue of solar-soil compound system was emphatically analyzed from four aspects, which were annual analysis of heating and cooling load, the heat exchange of ground heat exchanger, capacity determination of solar-assisted heat sottrce and heat balance calculation of solar-soil compound system. Moreover, annual rate of heat balance in a solar-soil source heat pump compound system was calculated with a case study. It is shown that the annual heat unbalance ratio is 19%, which is less than 20%. As a result, the practical solar-soil compound system can basically maintain the heat balance of soil.

某公寓热水供应方案的比选

太阳能作为一种新能源,是一种清洁无污染的可再生能源。太阳能热水系统是以吸收太阳辐射能为热源,将太阳能转为热能以达到加热水的目的的整套装置,包括太阳能集热装置、储热装置、循环管路装置等。由于太阳能热水系统在全年运行中受天气的影响很大,其独立应用存在间歇性、不稳定性和地区差异性,在太阳能应用中除利用集热器将太阳能转换成热能外,应采取热水保障系统(辅助加热系统)和储热措施来确保太阳能热水系统全天候稳定供应热水。