Shandong area insulator dirtiness water-soluble negative ion ingredient testing method

A measurement method, anion technology, applied in the field of instrument analysis, can solve problems affecting the accuracy of insulator contamination components, unsatisfactory actual effect of external insulation design, differences, etc.

Inactive Publication Date: 2015-12-30
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] Due to the influence of the specific local atmospheric environment and energy structure, the pollution of insulators in Shandong area shows a certain specificity in pollution components. The existing technology is limited by the accuracy and precision of the detection method itself, which

Method used

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  • Shandong area insulator dirtiness water-soluble negative ion ingredient testing method
  • Shandong area insulator dirtiness water-soluble negative ion ingredient testing method
  • Shandong area insulator dirtiness water-soluble negative ion ingredient testing method

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Experimental program
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Embodiment 1

[0038] 1 Experimental part

[0039] Instruments and reagents

[0040] Dionex ICS-5000 capillary ion chromatograph (including DP-5 capillary isocratic pump, EG-KOH capillary eluent generator, capillary conductivity detector, AS-AP autosampler), Chromeleon6.8 chromatographic workstation (ThermoFisher company), ACES-300 capillary suppressor, CRD200 capillary carbon dioxide remover; DionexICS-2000 analytical ion chromatograph (EG-KOH eluent generator, conductivity detector), Chromeleon6.0 chromatography workstation (ThermoFisher company); Constant temperature blast drying oven (BinderFD53); ultrasonic cleaner (KQ-500DE, Kunshan, Jiangsu); 0.22 μm microporous membrane.

[0041] Anion mixed standard solution (100mg / L) and C 2 o 4 2- (1000mg / L) standard solution was purchased from U.S. o2si company, F - , Cl - , NO 3 - , SO 4 2- 、PO 4 3- (1000mg / L) standard solution was purchased from the National Nonferrous Metals and Electronic Materials Analysis and Testing Center, and...

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Abstract

The invention discloses a Shandong area insulator dirtiness water-soluble negative ion ingredient testing method. According to the method, an efficient negative ion exchange separation column IonPac AS18 is used, and water-soluble negative ions in a dirtiness sample are accurately and fast tested under the KOH gradient leaching condition. The experiment result shows that the method has the advantages that the quantity definition is precise; the repeatability is good; the requirement on the practical dirtiness accurate evaluation in the Shandong area insulator can be met. The method is simple, convenient and stable; the pertinency is good in the linear range; the accuracy is high; the interference by other factors is small; the sample consumption is low; the practical value is high.

Description

technical field [0001] The invention belongs to the field of instrument analysis, in particular to a method for determining the water-soluble anion components of insulator pollution in Shandong area. Background technique [0002] Industrial pollution and air pollution are becoming more and more serious, resulting in more pollution on the surface of operating insulators, and increasing the risk of pollution flashover accidents on transmission lines. [0003] At present, the pollution characteristic parameters commonly used at home and abroad to characterize insulators mainly include: equivalent salt density, conductivity of pollution layer, leakage current and flashover field strength, etc. When evaluating the pollution of the external insulation of the power system, the method of measuring the equivalent salt deposit density (ESDD) is usually used to evaluate the degree of pollution. By measuring the conductivity of the dirty solution on the surface of the cleaning insulator...

Claims

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Application Information

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IPC IPC(8): G01N30/02
Inventor 张燕高坚唐新建刘国强侯亚琴李贵海周少玲张永苏建军
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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