大规模压缩空气储能电站主厂房设计优化分析

  目的  压缩空气储能电站在进行主厂房设计时缺少相应规范作为技术支撑，可参照执行的《压缩空气站设计规范》中存在一些有争议和不适用的规定，难以满足当前压缩空气储能电站大规模发展的需要。为了解决在规范执行过程中遇到一些重点问题，找到更优的主厂房设计方案。  方法  对空气储能用压缩机的爆炸危险性进行了分析，将合并厂房设计与分厂房设计做了经济性对比，并对压缩机房内压缩空气的储存容积做了整理和总结。  结果  结果表明:空气储能用压缩机不具备化学危险性，在设备质量达标的前提下也不具备物理爆炸危险性；合并厂房设计较分厂房设计可以节省大量投资；压缩机房内压缩气体的储存容积较主厂房体积占比较小。  结论  从工艺流程、系统集成度、整体经济性、运行维护方便等角度考虑，大规模压缩空气储能电站主厂房推荐采用合并厂房设计；并可根据工艺布置和检修运行需求，采取大平台布置结构；压缩机厂房与其它房间相邻时可设置甲级防火门，并应设置门斗等防护措施。

Optimization Analysis of Main Power House Design of a Large-Scale Compressed Air Energy Storage Power Station

  Introduction  The compressed air energy storage power station lacks corresponding codes as technical support in the design of main power House. There are some controversial and inapplicable provisions in the Code for design of compressed air station, which is difficult to meet the needs of the current large-scale development of compressed air storage power station. The paper aims to solve these critical problems in the implementation of the codes and to find better design schemes for the main power House.   Method  The explosion risks of the air energy storage compressor were analyzed, an economic comparison between the combined power House design and the separate power House design was made, and the storage volume of compressed air in the compressor room was sorted out and summarized.   Result  The results show that the air energy storage compressor has no chemical explosion hazard, and no physical explosion hazard on the premise that the equipment′s quality meets the standard. Combined power House design can save a lot of investment compared with separate power House design. The storage volume of compressed air in the compressor room is smaller than that of the main power House.   Conclusion  From the perspective of process flow, system integration, overall economy, convenient operation and maintenance, combined power House design is recommended for the main power House of a large-scale compressed air energy storage power station. According to the process layout and maintenance operation requirements, large platform structure is also recommended. A class-A fire door can be set up when the compressor power House is adjacent to other rooms, and the door buckets together with other protective measures should be set up.