Atmospheric environment chloride ion deposition rate testing device and method

A technology of deposition rate and atmospheric environment, which is applied in the field of atmospheric environment chlorine ion deposition rate test device for gauze hanging piece method sampling, can solve the problems of strong corrosion of standard solution, narrow application range, complicated operation, etc., to save test time, Wide concentration range and good repeatability

Inactive Publication Date: 2020-03-27
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a device and method for testing the deposition rate of chloride ions in an atmospheric environment, which solves the problems in the prior art that the standard solution is highly corrosive, narrow in scope of application, and complicated to operate, and realizes the accurate and accurate measurement of the deposition rate of chloride ions in the atmospheric environment. Rapid and safe testing, simplifying the testing process, improving work efficiency, and efficiently providing evaluation parameters for the State Grid Corporation of China's grid atmospheric corrosion map construction

Method used

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  • Atmospheric environment chloride ion deposition rate testing device and method
  • Atmospheric environment chloride ion deposition rate testing device and method
  • Atmospheric environment chloride ion deposition rate testing device and method

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Embodiment 1

[0030] Such as figure 2 Shown, a kind of atmospheric environment chlorine ion deposition rate testing device, described device is made of pure water bottle 1, heater 2, filter 3, automatic potentiometric titration device 4, valve 5, pump 6, main frame 7;

[0031] The outlet of the pure water bottle 1 is communicated with the inlet of the heater 2 through a pipeline; the outlet of the heater 2 is communicated with the inlet of the filter 3 through a pipeline; the outlet of the filter 3 is communicated with the inlet of the automatic potentiometric titration device 4 through a pipeline; the The pipeline is equipped with a valve 5 and a pump 6;

[0032] The host machine 7 is respectively connected with the pure water bottle 1, the heater 2, the filter 3, the automatic potentiometric titration device 4, the valve 5 and the pump 6, and controls the pure water bottle 1, the heater 2, the filter 3, and the automatic potentiometric titration device 4 during the test , Opening and cl...

Embodiment 2

[0034] Such as Figure 1-2 As shown, the present embodiment uses the device described in Embodiment 1 to provide a method for testing the deposition rate of chloride ions in an atmospheric environment, and the surface area is 0.02m 2The gauze is exposed to the atmosphere for t=365 days to obtain the gauze sample to be tested; the gauze sample to be tested is cut into small pieces and put into the heater, 40mL of pure water is automatically added, and heated in a constant temperature water bath at 40°C for 20min; the solution is cooled Filter through a filter to remove sand and insoluble matter on the surface of the gauze, wash the gauze with pure water, and enter the container for potentiometric titration after filtration as the test solution; then use a silver nitrate standard solution with a concentration of 0.01mol / L as the titration solution , use an automatic potentiometric titration device to titrate the solution. After the titration is over, obtain the volume of the sil...

Embodiment 3

[0038] Such as Figure 1-2 as shown in Figure 1-2 As shown, the present embodiment uses the device described in Embodiment 1 to provide a method for testing the deposition rate of chloride ions in an atmospheric environment, and the surface area is 0.02m 2 The gauze is exposed to the atmosphere for t=365 days to obtain the gauze sample to be tested; the gauze sample to be tested is cut into small pieces and put into the heater, 40mL of pure water is automatically added, and heated in a constant temperature water bath at 50°C for 20min; the solution is cooled Filter through a filter to remove sand and insoluble matter on the gauze surface, wash the gauze and filter paper with pure water, and enter the container for potentiometric titration after filtration as the test solution; then use a silver nitrate standard solution with a concentration of 0.1mol / L to prepare Titration solution, titrate the solution with an automatic potentiometric titration device, after the titration e...

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Abstract

The invention discloses an atmospheric environment chloride ion deposition rate testing device and method. The method comprises the steps of chloride ion deposition, chloride ion dissolution, chlorideion titration and blank sample determination, the chemical reagent silver nitrate used in the whole test process is low in toxicity, highly toxic and highly corrosive dangerous chemicals used in an existing method are avoided, and the test operation safety is high. The titration process is automatic, simple in flow and convenient to operate. The method can greatly save the test time, has high accuracy, reliability and safety, can quickly analyze and test a large amount of to-be-tested gauze in a short time, and improves the working efficiency of power grid atmospheric corrosion map construction of the State Grid Corporation of China.

Description

technical field [0001] The invention relates to the technical field of environmental monitoring, in particular to a device and method for testing the deposition rate of chlorine ions in an atmospheric environment sampled by a gauze hanging sheet method. Background technique [0002] The chloride ion deposition rate in the atmospheric environment is an important parameter used to evaluate the corrosion of the atmosphere. Monitoring the chloride ion deposition rate in the atmospheric environment is an important task in the construction of the atmospheric corrosion map of the State Grid Corporation of China. The accuracy of the test results is directly related to It affects the efficiency and accuracy of the State Grid Corporation's grid atmospheric corrosion map construction. The monitoring method of the chloride ion deposition rate in the atmospheric environment is to expose double-layer gauze of known area under the rainproof outdoor test conditions to collect the chloride i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/16
CPCG01N31/164
Inventor 耿植王志高田倩倩王杰董仲明兰新生
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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