钠电解循环水余热利用系统的应用分析

Application Research of Exhausted Heat Utilization of Circulating Water from Sodium Reduction

针对目前工业余热利用率低的现状,以某制钠厂为例介绍了钠电解循环水余热利用系统的应用情况,对系统的组成、流程和运行原理进行了简要介绍。对系统的实测数据进行分析,计算得出循环水可以利用的热量以及采暖负荷和工艺预热负荷,对方案进行了技术经济分析。结果表明,钠厂电解循环水流量巨大,且温度常年保持在60℃以上,利用循环水余热进行供暖和工艺预热从技术上和经济上是可行的,项目实施后能够带来良好的经济效益和社会效益。

Aiming at the low utilization efficiency in industrial heat recovery, the paper indicates the application of exhausted heat utilization of circulatlng water from sodium reduction factory based on an example of a factory and introduces the structure, work flow and operation principle of the system. The mea- sured data are analyzed, and the useful energy of circulating water and the load of heating and process preheating is calculated. Also, a technical and economic analysis is made about the plan. The results show that the average flow circulating water is overwhelming and its temperature remains around 60℃throughout of the year. And it is economically and technically feasible to use exhausted heat from circulating water for building heating and process preheating. It can obtain great economic and social benefit.