因子分析法在变电站土壤腐蚀性评价中的应用

doi:10.11902/1005.4537.2013.074

中国腐蚀与防护学报

2014, Vol. 34

Issue (2): 147-152 DOI: 10.11902/1005.4537.2013.074

研究报告

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因子分析法在变电站土壤腐蚀性评价中的应用

朱志平¹, 王磊静¹, 裴锋², 银朝晖¹, 伍发元², 田旭²

1. 长沙理工大学化学与生物工程学院长沙 410114;
2. 江西省电力科学研究院南昌 330096

Evaluation of Soil Corrosivity for Ground Grid of Substations in an Area by Factor Analysis

ZHU Zhiping¹, WANG Leijing¹, PEI Feng², YIN Zhaohui¹, WU Fayuan², TIAN Xu²

1. School of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha 410114, China;
2. Jiangxi Electric Power Research Institute, Nanchang 330096, China

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摘要:

对某区123个110 kV变电站的接地网中部土壤进行取样分析，详细测定了土壤的理化性能 (共11个指标)，应用因子分析法对测定数据进行分析、处理。结果表明，该区变电站接地网土壤腐蚀性主要影响因素为：Ca²⁺+Mg²⁺，SO₄²^-，pH值，Cl^-和含水率。以此5项关键腐蚀性因素作为评价指标进行综合评价，该区变电站接地网土壤腐蚀性分为特强 (11个变电站)、强 (86个变电站)、较强 (14个变电站) 和中等 (12个变电站) 4个等级。同时，采用德国Beckman标准评价方法对123个变电站接地网土壤腐蚀性进行了评价，两者结果基本一致，说明因子分析法可应用到变电站接地网土壤腐蚀性评价中，且可靠性较高。

关键词 ：接地网, 土壤, 腐蚀, 因子分析

Abstract：Soils in a depth corresponding to half length of the buried grouding grids are sampled from sites of 123 substations of a 110 kV transmission network in an area. Their physical and chemical properties (11 indexes) are measured, which then are analyzed and processed by using the method of factor analysis. The results show that soil corrosivity for substation ground grid in this area is mainly influenced by calcium and magnesium ions, pH value, chloride ion and water content. A comprehensive evaluation is made based on these five key corrosive factors. It follows that the soil corrosivity for substation ground grids in this area may be divided into four levels as: exceptionally strong (11 substations), strong (86 substations), relatively strong (14 substations) and middle (12 substations). Meanwhile, the corrosivity of all the soil samples are evaluated according to German Beckman standard method. The results of the two methods are in accord with each other, which indicates that factor analysis can be applied to evaluate the soil corrosivity for substation ground grid with a good reliablility.

Key words： grounding grid soil corrosion factor analysis

收稿日期: 2013-05-17

ZTFLH:

TM632+.2

基金资助:国家自然科学基金项目(21171027)资助

通讯作者: 朱志平，E-mail：zzp8389@163.com

作者简介: 朱志平，男，1963 年生，教授，博士，研究方向为锅炉水处理技术、电力(热力) 设备腐蚀与防护

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引用本文:

朱志平, 王磊静, 裴锋, 银朝晖, 伍发元, 田旭. 因子分析法在变电站土壤腐蚀性评价中的应用[J]. 中国腐蚀与防护学报, 2014, 34(2): 147-152.
ZHU Zhiping, WANG Leijing, PEI Feng, YIN Zhaohui, WU Fayuan, TIAN Xu. Evaluation of Soil Corrosivity for Ground Grid of Substations in an Area by Factor Analysis. Journal of Chinese Society for Corrosion and protection, 2014, 34(2): 147-152.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2013.074 或 https://www.jcscp.org/CN/Y2014/V34/I2/147

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