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Water tank antirot material dissolvent characteristic detection test method

A technology of anti-corrosion materials and characteristics, applied in the field of water treatment, can solve problems such as the dissolution characteristics of anti-corrosion coatings that cannot be investigated

Inactive Publication Date: 2016-06-01
NORTH CHINA ELECTRICAL POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This scheme only examines the anion and cation levels of coating dissolution, and it cannot provide any technical contribution to the investigation of the dissolution characteristics of anti-corrosion coatings in desalinated water

Method used

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  • Water tank antirot material dissolvent characteristic detection test method
  • Water tank antirot material dissolvent characteristic detection test method
  • Water tank antirot material dissolvent characteristic detection test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Analysis of TOC detection results of domestically produced polyurea samples in a power plant in Beijing

[0091] (1) Test conditions

[0092] Sample No. 36: Size (mm): 77.62×10.42×1.58, 77.65×10.42×1.53;

[0093] Mass (g): 2.6199, the volume of soaking liquid is 610mL, sealed.

[0094] Sample No. 37: Size (mm): 77.62×10.42×1.55, 77.62×10.43×1.56;

[0095] Mass (g): 2.7738. The soaking solution has a volume of 610mL and is sealed.

[0096] No. 38 is a blank sample with a volume of 610mL and sealed.

[0097] Test temperature: room temperature 21°C.

[0098] (2) Analysis of TOC detection results in the initial dissolution stage

[0099] See figure 1 shown.

[0100] From figure 1 It can be seen that the TOC measured values ​​of the two groups of parallel samples No. 36 and No. 37 have the same changing law, and the correlation is very good, which verifies the reliability of the TOC measuring instrument and measuring method used in this experiment.

[0101] It can ...

Embodiment 2

[0119] Example 2: Analysis of TOC detection results of polyurea samples from an imported polyurea sample

[0120] (1) Test conditions

[0121] Sample No. 1: Size (mm): 64.02×10.20×2.04, 64.02×10.08×2.06;

[0122] Mass (g): 2.3907, the volume of soaking liquid is 610mL, sealed.

[0123] Sample No. 3: Size (mm): 64.02×10.00×2.08, 64.02×10.26×2.06;

[0124] Mass (g): 2.4133. The soaking solution has a volume of 610mL and is sealed.

[0125] No. 2 is a blank sample with a volume of 610mL and sealed.

[0126] Test temperature: room temperature 21°C.

[0127] (2) Analysis of TOC detection results in the initial dissolution stage

[0128] For the measured value and changing law of TOC dissolution concentration in the initial dissolution stage of polyurea samples from an imported polyurea sample, see Figure 5 shown.

[0129] From Figure 5 It can be seen that the changes in the measured values ​​of TOC of No. 1 and No. 3 groups of parallel samples are consistent, and the cor...

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Abstract

The invention provides a water tank antirot material dissolvent characteristic detection test method, comprising the following steps: sample pretreatment: taking an antirot coating sample, weighing, and obtaining the size; initial dissolvent: soaking the sample in test water, sampling at a soaking time interval of 1 to 3 days in the first 15 soaking days, then sampling for 3 to 5 times at an interval of 3 to 5 days, and then sampling at an interval of 10 to 15 days, and detecting concentration of dissolved total organic carbon each time; deep dissolvent: talking out a test block, soaking in the test water again, taking a soak solvent at an interval of 1 to 3 days in the first 15 soaking days for detection, then sampling for 3 to 5 times at an interval of 3 to 5 days, detecting concentration Cs of dissolved total organic carbon each time, and when the soak solvent is taken for the last time, detecting other ion concentrations; data processing: performing analytical processing on a detection result of a dissolved matter, and respectively calculating dissolvent rates of total organic carbon of the test block in the initial dissolvent stage and the deep dissolvent stage, thus obtaining water tank antirot material dissolvent characteristics.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a test method for detecting dissolution characteristics of anticorrosion materials in water tanks. Background technique [0002] Desalting water tanks in thermal power plants need to be coated with anti-corrosion materials inside. The anti-corrosion materials are usually polyurea elastomers, which are polymer materials. When the water tank is coated with anti-corrosion materials, the water quality of the desalted water tank will exceed the standard, which will seriously affect the normal water supply of the unit. After investigation and analysis, it may be related to the dissolution of anti-corrosion materials on the inner wall of the water tank. At present, relevant units have carried out experimental research on the influence of polyurea elastomers on the water quality of desalted water tanks in power plants, and formulated test plans. [0003] Feng Jinling from Sanmen Nuclear ...

Claims

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Application Information

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IPC IPC(8): G01N13/00
CPCG01N13/00
Inventor 星成霞李永立王应高金绪良张秀丽刘郦雅
Owner NORTH CHINA ELECTRICAL POWER RES INST
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