激光导热仪和热物性测试仪器专家

采用JR-3热物性仪测试数据的科研论文-直流输电工程接地极土壤热特性测试

2015-03-05 22:14:00
博驰仪器
原创
1753
摘要:同时现场取土样送到长沙,委托中南大学粉末冶金研究院采用激光热脉冲法测试,所用仪器为JR-3激光导热仪,试样制备成不透光、直径为10mm的薄片。试样在获取、运输、环境温度、制备测试样本等过程中对原状土壤不可避免有一定的扰动,对测试成果有影响,激光脉冲法与双探针法现场测试成果比较见表2
摘要:针对直流输电线路接地极工程,探求一种可靠、高效、低成本的土壤热特性测试方法。采用近年来国内外研究土壤热特性的新方法—线热源双探针法,阐述该方法的原理,引进美国双探针传感器构建土壤热特性测试系统,在直流输电线路接地极选址中应用。
关键词:接地极;线热源;土壤热特性。

Soil Heat Characteristic Test of
Grounding System in Dc Transmission Line
QI Jian-guo, QI Di, YUAN Li-jiang, ZHANG Guo-chun, LIU Chang-ji
(Northeast Electric Power Design Institute, Changchun, 130033, China)
Abstract: Searching for a credible, effective and low-cost way to test the soil heat characteristic about the project of DC transmission lines. A new method – Heat Source Double-Tip Method –has be applying recently, its principle is described briefl y. Setting up the system about soil heat characteristic test work in the double-tip sensor made in US.
Applying the system to the practice of location selection.

Key words: grounding system; linear heat source; soil heat characteristic.

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