水冷变压器的余热再利用  

Reuse of Waste Heat Cooled Transformer

作　　者：汪筝 黄磊 王斌[2] 李宾皑[2] 

机构地区：[1]上海电力设计院有限公司,上海200025 [2]国网上海市电力公司,上海200122

出　　处：《电力与能源》2014年第3期401-404,共4页Power & Energy

基　　金：国家电网公司科技项目"地下变电站优化设计技术研究"5150011044资助

摘　　要：水冷变压器在运行时产生的大量热损耗,通过水冷将热量快速散发,在冬季冷却水温仍维持在35～40℃,这部分余热可以再利用。介绍了水冷变压器的功率损耗、余热用于冬季空调采暖和夏季空调制冷,以及变压器平均负载率与出水水温的关系。分析认为:通过挖潜增效,可以利用水冷变压器的余热,推进节能减排工作;无论是直接利用变压器余热,还是改造变压器冷却系统,用于民用建筑采暖空调,既节约了一次投资费用,也节约了运行费用。吸附式制冷机组的优势是利用废热及低品位热源,采用环保制冷剂;劣势是制冷效率与传统蒸汽压缩式制冷(包括吸收式制冷)效率相比,存在一定差距,其制冷量包括能源的可循环利用量还很小,产品尚未量产。Transformer in operation,annual produce considerable heat loss,need through the air-cooled or water-cooled heat in the atmosphere.The cooling water temperature water-cooled transformer,even in winter also maintained at about 35~40,the residual heat can be recycled.Introduces the power loss,heat recovery water-cooled transformer for winter heating and summer air-conditioning refrigeration,and the relationship between the average load rate of transformer and the outlet water temperature.Analysis：to enhance the effi-ciency,waste heat utilization of water-cooled transformer,promote energy-saving emission reduction work;either directly by transformer waste heat,or rehabilitation of transformer cooling system,used for civil build-ing heating and air conditioning,which saves the one-off investment cost,but also save operating costs.While the adsorption chiller advantage is the use of waste heat and low grade heat source,using environmental pro-tection refrigerant.The disadvantage is the refrigeration efficiency and traditional vapor compression refrigera-tion （including absorption refrigeration）efficiency compared,there is a certain gap,the refrigeration capacity including energy recycled amount is very small,not mass production products.

关 键 词：地下变电站 变压器 余热利用 节能 

分 类 号：U451[建筑科学—桥梁与隧道工程]