太原日报社新闻大楼蓄能系统的改造

Benefits Analysis of the Energy Storage System in Taiyuan Daily Building

冬季供暖系统采用的是电热锅炉。为了利用电网的分时电价差以节省运行费用,太原日报社新闻大楼的电锅炉只在夜间用电低谷时段运行,将热水储存于三个水箱中(共有四个水箱)供白天大楼里各房间采暖,但夏季空调系统却没有利用水箱蓄冷。在原有蓄热水的基础上,提出了夏季蓄冷的改造方案。根据现有设备的情况和对多种水蓄冷系统进行比较。本着投资小、蓄冷量大、系统简单和操作方便的原则,确定采用自然分层的水蓄冷方案。该方案在满足用户冷负荷的需求下,一个夏季可节省运行费27 022.8元。

The heat source of heating system in the building of Taiyuan Daily is electric boiler with thermal storage. It works every day only night in order to shun the peak of using electric and to decrease the cost of working. But four water tanks of thermal storage don＇t store cold in the summer. In view of this situation , we put forward a reform projects of cold storage and analyzed the benefits that cold storage air condition system brings.