国家发改委：到2025年底余热余压余能自发电率比2023年提高3个百分点以上

日期： 2024-06-13 作者：来源：国家发改委

近日，国家发改委印发《钢铁行业节能降碳专项行动计划》的通知，通知提出，到2025年底，钢铁行业高炉、转炉工序单位产品能耗分别比2023年降低1%以上，电弧炉冶炼单位产品能耗比2023年降低2%以上，吨钢综合能耗比2023年降低2%以上，余热余压余能自发电率比2023年提高3个百分点以上。2024—2025年，通过实施钢铁行业节能降碳改造和用能设备更新形成节能量约2000万吨标准煤、减排二氧化碳约5300万吨。

推动全流程余能利用。加强钢铁行业余能利用改造，有序开展余能自发电装备更新，优化二次能源直接利用方式，减少能源转化次数。积极推进副产煤气利用，推广燃气—蒸汽联合循环发电、亚临界煤气发电、超高温超高压发电等高效利用技术。加快推广烧结、焦化等余热发电技术，支持开展冶金渣显热高效回收利用、轧钢加热炉煤气反吹、转炉底吹二氧化碳炼钢、高炉炉顶均压煤气、高温高压干熄焦、中低温余热余能利用等应用。因地制宜推进钢铁低品位余热用于城镇供暖供冷。

综合考虑能耗、环保绩效水平，完善高耗能行业阶梯电价制度。研究对能效未达到基准水平或环保绩效C、D级的钢铁项目，依据能效水平和环保绩效差距执行阶梯电价。落实支持余热余压发电的价格政策。

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过热蒸汽蒸汽疏水阀有哪几种？高频电磁蒸汽发生器G-ZQ 120KW 蒸汽调节阀蒸汽减温减压器冷凝水回收装置工业蒸汽系统在蒸汽换热后存在高温冷凝水、低品质蒸汽、乏汽等余热未回收的问题化工、石化、食品等企业换热设备产生的高温冷凝水闪蒸系统提温升压蒸汽发生器闪蒸罐排空气系统也希望大家积极留言讨论。

蒸汽余热回收主要有以下两种方案：

一、蒸汽引射器蒸汽增压闪蒸设备密闭冷凝水回收装置焓差补偿式扩容净化回收器蒸汽引射提温升压余热回收ORC发电蒸汽节能湖南汽水分离器哪家好超大排量疏水器蒸汽发生器可以节能吗？疏水阀减温减压装置冷凝水回收闪蒸罐装置蒸汽减温减压装置系统晟德亿

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