钢管热镀锌热工系统节能技术规范 Technical specification for energy-saving of hot-dip galvanizing thermal system for steel tubes  ICS  77.010 CCS  H 04   中华人民共和国国家标准 GB/T 44553—2024 2024-09-2 9发布 2025-04-0 1实施     国家市场监督管理总局 国家标准化管理委员会 发 布 目　　次 前言   ·····································································································   Ⅲ 1     范围   ··································································································   1 2     规范性引用文件   ······················································································   1 3     术语和定义   ···························································································   1 4     技术要求   ······························································································   2      4.1     通则   ······························································································   2      4.2     镀锌炉炉体、燃烧系统与控制系统   ······························································   2      4.3     余热系统   ·························································································   3 5     热工系统运行能效指标评价   ··········································································   4 GB/T 44553—2024     Ⅰ