T-BFYZ 0001-2025 气体超声流量计

ICS 43.040.10 T 36 团体标准 T/ BFYZ 0001 —2025 代替 T/ BFYZ 0001 —2022 气体超声流量计 Gas ultrasonic flowmeter 2025-10-14发布 2025-11-01实施上海泵阀压缩机行业协会发布全国团体标准信息平台全国团体标准信息平台 I 目次前言 ................................ ................................ ............. III 1 范围 ................................ ................................ ................. 1 2 引用文件 ................................ ................................ ............. 1 3 术语和定义 ................................ ................................ ........... 2 3.1 超声流量计 ................................ ................................ ......2 3.2 超声换能器 ................................ ................................ ......2 3.3 自动增益控制 ................................ ................................ ....2 3.4 脉冲系数 ................................ ................................ ........ 2 3.5 最大误差偏移 ................................ ................................ ....2 3.6 分界流量 ................................ ................................ ........ 2 3.7 始动流量 ................................ ................................ ........ 2 3.8 过载流量 ................................ ................................ ........ 3 3.9 传播时间 ................................ ................................ ........ 3 3.10 声道 ................................ ................................ .......... 3 3.11 声道角 ................................ ................................ ........ 3 3.12 声道长度 ................................ ................................ .......3 3.13 零流量读数 ................................ ................................ .....3 4 符号 ................................ ................................ ................. 3 5 结构、原理和型式 ................................ ................................ .....4 5.1 结构 ................................ ................................ ........... 4 5.2原理 ................................ ................................ ............ 5 5.3型式 ................................ ................................ ............ 6 6 总则 ................................ ................................ ................. 6 6.1 测量原理 ................................ ................................ .......6 6.2 正常工作条件 ................................ ................................ ...6 7 要求 ................................ ................................ ................. 8 7.1 外观与铭牌 ................................ ................................ .....8 7.2 功能要求 ................................ ................................ .......8 全国团体标准信息平台全国团体标准信息平台 II 7.3 示值误差 ................................ ................................ ......10 7.4 重复性 ................................ ................................ ........ 10 7.5 零流量 ................................ ................................ ........ 10 7.6 始动流量 ................................ ................................ ......10 7.7 耐压强度 ................................ ................................ ......10 7.8 密封性 ................................ ................................ ........ 10 7.9 电磁兼容性能 ................................ ................................ ..10 7.10 绝缘电阻 ................................ ................................ .....11 7.11 绝缘强度 ................................ ................................ .....11 7.12 防爆性能 ................................ ................................ .....11 7.13 外壳防护 ................................ ................................ .....11 7.14 抗运输贮存性能 ................................ ............................... 12 8 检验与试验方法 ................................ ................................ ....12 8.1 外观检验 ................................ ................................ ......12 8.2 功能试验 ................................ ................................ ......12 8.3 示值误差试验 .