Tower paint surface corrosion safe state evaluation method

A technology of safety state and evaluation method, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of large human factors, non-objectiveness, non-standard evaluation of tower coating corrosion state, etc., and achieve good repeatability, easy execution, The effect of high accuracy

Inactive Publication Date: 2016-05-04
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a convenient, fast, objective and standardized method for evaluating the corrosion state of the painted surface of the tower in service, so as to solve the problems that the evaluation of the corrosion state of the coating of the existing tower is not standardized, not objective, and the human factors are large.

Method used

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  • Tower paint surface corrosion safe state evaluation method
  • Tower paint surface corrosion safe state evaluation method
  • Tower paint surface corrosion safe state evaluation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The method for evaluating the corrosion state of the painted surface of the pole and tower in service of the present invention includes the following steps:

[0050] Step 1: Data collection

[0051] Collect the original data and operation and maintenance data of the evaluated tower, including tower installation reports, construction records, inspection reports over the years, and anti-corrosion maintenance records.

[0052] Step 2: Build the state of corrosion evaluation

[0053] According to the collected data, determine the corrosion type of the tower and construct the corrosion evaluation status quantity.

[0054] Step 3: Establish the evaluation standard of corrosion state quantity

[0055] Determine the weight of the state quantity, construct the basis for judging the deterioration degree of the state quantity, and construct the deduction algorithm for the corrosion state quantity. The specific deduction criteria for corrosion status are as follows:

[0056] Table 1 Judgment ...

Embodiment 2

[0069] In July 2012, the original data and operation and maintenance data of three 220kV lines in a mountainous area were collected. The three lines were respectively subjected to anti-corrosion maintenance in May 2007, August 2009 and September 2011. The form of anti-corrosion was painting with paint, and no maintenance was carried out in the later period. The current type of anti-corrosion of poles and towers is painted anti-corrosion.

[0070] The safety evaluation of the 6-base towers in the area was carried out using the method of Example 1; among them, 2 base towers were in a normal state, 2 base towers were in a state of attention, and 2 base towers were in a serious state.

[0071] (1) No maintenance was carried out for the poles in severe conditions. After 3 years, the 2 base poles and towers partially experienced severe corrosion and thinning.

[0072] (2) Anti-corrosion maintenance is not carried out for the poles in the state of attention. After 3 years, they are evaluate...

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Abstract

The invention relates to a tower paint surface corrosion safe state evaluation method and belongs to the technical field of in-service tower safety evaluation and maintenance. The method comprises carrying out basic score deduction according to detection results of four state parameters such as a paint surface whole corrosion degree, a paint surface local corrosion degree, coating adhesion and a coating foaming degree, calculating products of the basic deducted scores of the state parameters and corresponding weight coefficients (3, 3, 2, 2) to obtain scores to be deducted and determining a safe state of the tower paint surface according to the sum of the score to be deducted of each one of the state parameters and the scores to be deducted of the state parameters. Compared with the existing tower corrosion state subjective judgment method, the method provided by the invention can give objective and accurate tower corrosion state evaluation according to the tower corrosion safety evaluation standard. The state parameters are reasonable, a state parameter detection related standard or apparatus exists and the method can be executed easily.

Description

Technical field [0001] The invention relates to a method for evaluating the corrosion safety state of the painted surface of a pole and tower, and belongs to the technical field of safety evaluation and maintenance of the pole and tower in service. Background technique [0002] The operation and service life of transmission line poles and towers in the atmospheric environment mainly depend on the anti-corrosion state of the surface coating. At present, the judgment of the corrosion state of the coating on the surface of the transmission line tower is mainly based on the operating experience of the line workers, and there is a lack of reliable, objective and fast evaluation methods. The anti-corrosion maintenance of poles and towers is random and blind, and some poles and towers have transitional maintenance. Although, there are already a variety of standards for evaluating the state of painted surfaces, such as the "Test Standard Test Method for the Evaluation of the Surface Rus...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/00G01N33/0096
Inventor 闫风洁岳增武李辛庚郭凯樊志彬王学刚王晓明王斐斐孙伟
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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