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Graphical Display Method for Measuring Sludge Accumulation Distribution on Tube Sheet Surface

A graphic display and planar graphics technology, applied in the direction of measuring devices, material magnetic variables, instruments, etc., can solve the problem of statistics on the distribution of sludge accumulation on the secondary side of the steam generator tube plate, and achieve intuitive and simple sludge distribution. Effects that are easy to grasp

Active Publication Date: 2020-03-17
RES INST OF NUCLEAR POWER OPERATION +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The traditional measurement method is limited to the measurement of the height of sludge accumulation on the outer wall of the heat transfer tube of the steam generator, and does not make statistics on the distribution of the sludge accumulation on the secondary side of the steam generator tube sheet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Graphical display method for measuring the distribution of sludge accumulation on the surface of tube sheet:

[0023] Step 1: Instrument parameters and preparation

[0024] Install the heat transfer tube on the tube sheet specimen, and specify the sampling rate of the eddy current instrument, the detection frequency and the moving speed of the probe;

[0025] Step 2: Signal Identification of Tube Sheet Specimen

[0026] Carry out the eddy current test on the tube sheet test piece with the heat transfer tube installed in step 1; use the eddy current probe to move at a constant speed inside the heat transfer tube, and record the eddy current signal A of the tube sheet test piece during the movement; move the probe to the tube sheet test piece When the secondary side surface of the tube sheet is detected, record the eddy current signal A1 of the secondary side surface of the tube sheet specimen at this time; find the corresponding position of the secondary side surface ed...

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Abstract

The invention belongs to the field of graphical display, and particularly relates to a display method of a measurement graph for accumulation and distribution of tube plate surface sludge. The display method includes step 1 of instrument parameter and preparation, step 2 of tube plate sample signal recognition, step 3 of sludge signal recognition, step 4 of sludge height calculation, step 5 of actual sludge height measurement and recording, and step 6 of graph displaying. The display method has the advantages that the display method is directly perceived and concise, and workers master secondary-side sludge distribution and state conveniently and clearly.

Description

technical field [0001] The invention belongs to the field of graphic display, and particularly relates to a graphic display method for measuring the distribution of sludge accumulation on the surface of a tube sheet. Background technique [0002] The steam generator is the key component of the integrity of the primary circuit pressure boundary of the nuclear power plant. At the same time, it is the heat exchange equipment that transfers the heat from the primary circuit coolant to the secondary circuit feed water, so that it produces saturated steam for the secondary circuit power plant. The degree of sludge accumulation seriously affects the heat exchange performance of the steam generator, and even directly affects the operating power and life of the nuclear power plant. [0003] The graphical display method for measuring the distribution of sludge accumulation on the surface of the secondary side tube sheet of the steam generator is to conduct data modeling based on the g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/90G01B7/02
CPCG01B7/02G01N27/90
Inventor 夏清友姚传党王永张翱
Owner RES INST OF NUCLEAR POWER OPERATION
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