GB/T 38588—2020
城镇供热保温管网系统散热损失 现场检测方法
In-situ measurements of heat loss of insulating pipes for urban heat-supplying
2020-03-31 发布
2021-02-01 实施
目 次
前言..........................................I
1范围.........................................1
2规范性引用文件....................................1
3术语、定义和符号...................................1
3.1术语和定义..................................1
3.2 符号...................................  2
4测试方法.......................................4
4.1热流计法....................................4
4.2表面温度法...................................4
4.3温卷法.....................................6
4.4热平衡法....................................7
5测试分级和使用条件..................................8
5.1测试分级和选用.................................8
5.2测试仪器和仪表.................................8
6测试要求.......................................9
6.1测试准备....................................9
6.2测试截面和测点布置...............................9
6.3测试环境条件................................ 10
6.4测试步骤...................................11
7数据处理......................................11
7.1数据整理...................................11
7.2散热损失计算.................................11
8测试误差......................................13
8-1误差分析...................................13
8.2误差范围...................................13
9测试报告......................................13
附录A （规范性附录）热流密度修正..........................14
附录B （规范性附录）表面温度法总传热系数计算....................16
附录C （规范性附录）保温管道沿线调査表.......................19
附录D （规范性附录）保温管道保温结构散热损失测试数据记录表.............21