中水作为地铁空调循环冷却水补水可行性研究

Feasibility Research on Using Reclaimed Water as Makeup Water for Air Conditioning Recirculating Cooling Water in Subway

研究目的:我国在建或规划建设的地铁车站数量巨大,设有空调系统的车站日循环冷却水补水量都很大,运营费用高,不利于水资源的节约利用。同时,我国城市中水系统正逐渐发展成熟。因此,研究中水作为地铁车站空调循环冷却水补水的可行性具有很大的经济和社会意义。本文旨在分析比较空调循环冷却水的水质要求和我国城市中水水质,制定合理的中水深度处理方案,并对中水和自来水作为循环冷却水补水进行技术经济比较。研究结论:(1)中水作为地铁空调循环冷却水补水在技术上是可行的,可以通过对城市中水进行针对性的深度处理后,作为系统补水;(2)经济上虽然增加了初期投资,但可减少运行费用;(3)整体来看,补水量越大,经济效益越显著;(4)本研究成果为地铁中空调循环冷却水补水水源的选择以及中水用水方向提供了新的思路,对今后的具体实施有一定的指导意义。

Research purposes： The number of subway station in construction or planning was huge in china, the quantity of makeup water for air conditioning recirculating cooling water in station which equipped with air conditioning was large, resulted in high operating costs and going against the economical use of water resources. And reclaimed water system of our city was developing gradually. Therefore, it was with great economic and social significance of feasibility research on using reclaimed water as makeup water for air conditioning recirculating cooling water in subway. The quality of air conditioning recirculating cooling water and the quality of city reclaimed water were analyzed and compared, deeper treatment program for reclaimed water was made, the technical and economic comparison of using reclaimed water and city water as air conditioning recirculating cooling water was made. Research conclusions： （ 1 ） Using reclaimed water as air conditioning recirculating cooling water in subway is feasible, through pertinently advanced treatment, reclaimed water could be used as cooling water. （2） Although the initial investment of economic increases, but the operating cost is reduced. （3） On the whole, replenishment amount is bigger, the economic benefit is more. （4） The research provides a new idea for the choice of makeup water for air conditioning recirculating cooling water and the using mode of reclaimed water, which has a certain guiding significance to specific implementation.