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Detection method of small fuses in nuclear power plants

A detection method and fuse technology, which are applied in radiation pyrometry, instruments, measuring electricity, etc., can solve the problems of failure to detect the reliability of small fuses in nuclear power plants, and achieve the effect of improving safety and reliability and reducing risks.

Active Publication Date: 2016-01-27
CHINA GENERAL NUCLEAR POWER CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is no detection method for detecting the reliability of small fuses in nuclear power plants

Method used

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  • Detection method of small fuses in nuclear power plants
  • Detection method of small fuses in nuclear power plants
  • Detection method of small fuses in nuclear power plants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 The flow of the reliability detection method for a small fuse in a nuclear power plant provided by the first embodiment of the present invention is shown, and the details are as follows:

[0031] Step S11 , the detection is performed according to the state of the fuse in the nuclear power plant, wherein the state of the fuse includes a state before being used as a spare part, a state before use, a state in operation, and a state in use as a failure analysis or aging analysis.

[0032] In step S12, the fuse is processed according to the detection result.

[0033] In a nuclear power plant, after a new batch of fuses is purchased, a comprehensive inspection of the new fuses is required to determine whether the new fuses are suitable as new spare parts for the nuclear power plant; when the nuclear power plant uses new fuses Before replacing the running fuse with the spare part or using the repaired fuse, the new spare part of the fuse or the repaired fuse needs to...

Embodiment 2

[0036] figure 2 A flow chart of detecting a fuse in a pre-spare state in a method for reliability detection of a small fuse in a nuclear power plant provided by the second embodiment of the present invention is shown, and the details are as follows.

[0037] In step S21, a magnifying glass or a microscope is used to inspect the appearance of the fuse in the state before the spare parts of the nuclear power plant.

[0038] In this embodiment, the appearance inspection of the newly purchased fuse is carried out first. Specifically, the fuse can be inspected by visual inspection, a magnifying glass or a microscope. Appearance inspection, otherwise, it indicates that the fuse fails the appearance inspection, and no subsequent inspection is performed on the fuse that fails the appearance inspection, thereby improving the inspection efficiency of the fuse.

[0039] Step S22, perform non-destructive testing on the fuse that has passed the appearance inspection to obtain performance...

Embodiment 3

[0070] Figure 4 The flow chart of the method for detecting the reliability of small fuses in nuclear power plants provided by the third embodiment of the present invention is shown in detecting the fuses in the state before use. Before the fuse is used in a nuclear power plant, or before a fuse after fault repair is reused in a nuclear power plant, the detection described in the third embodiment needs to be carried out, and the details are as follows.

[0071] In step S41, the first non-destructive testing is performed on the fuse in the state before use to obtain performance parameters of the fuse, which include cold resistance, rated current and voltage drop, and current-carrying capacity.

[0072] In this embodiment, the first non-destructive testing is performed on the fuse to be used in the nuclear power plant, and various performance parameters of the fuse are obtained, so as to determine whether the various performance parameters of the fuse still meet the operation re...

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Abstract

The present invention is suitable for on-line digital state detection and monitoring technology of power equipment, and also belongs to the key technical field of mega-kilowatt nuclear power plants. It provides a method for detecting the reliability of small fuses in nuclear power plants. The method includes the following steps: The state of the fuse is detected, and the state of the fuse includes the state before being used as a spare part, the state before use, the state in operation, and the state used for failure analysis or aging analysis; the fuse is processed according to the detection result. The embodiment of the present invention detects the fuses in different states, evaluates the reliability of the fuses, reduces the risk of unit tripping and tripping, and improves the safety and reliability of nuclear power plant operation.

Description

technical field [0001] The invention belongs to the on-line digital state detection and monitoring technology of power equipment, and also belongs to the key technical field of million-kilowatt nuclear power plants, in particular to a detection method for small fuses in nuclear power plants. Background technique [0002] A nuclear power plant is a power plant that uses the energy released by nuclear fission or nuclear fusion reactions to generate electricity. In order to protect the health of the nuclear power plant staff and residents around the nuclear power plant, the design, construction and operation of the nuclear power plant adopts the principle of defense in depth, providing multiple protections in terms of equipment and measures to ensure that the nuclear power plant can effectively control the output power of the reactor, and can In the event of various natural disasters, such as earthquakes, tsunamis, floods, etc., or man-made fires, explosions, etc., it can also ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R27/08G01R19/00G01K7/02G01J5/00G01K7/026
Inventor 王国云马蜀丁俊超张志飞崔国华汪世清犹代伦刘新东李勇孙志峰
Owner CHINA GENERAL NUCLEAR POWER CORP