Small fuse detecting method for nuclear plant

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: 2013-06-19
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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  • Small fuse detecting method for nuclear plant
  • Small fuse detecting method for nuclear plant
  • Small fuse detecting method for nuclear plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 The flow chart of the method for detecting the reliability of small fuses in nuclear power plants provided by the first embodiment of the present invention is shown, and the details are as follows:

[0031] Step S11 , detect according to the state of the fuse in the nuclear power plant, where 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.

[0032] Step S12, processing the fuse according to the detection result.

[0033] In nuclear power plants, when a new batch of new fuses are purchased, a comprehensive inspection of the new fuses is required to determine whether the new fuses are suitable as new spare parts for nuclear power plants; when nuclear power plants use new fuses Spare parts or before using the repaired fuse to replace the running fuse, it is necessary to test the new spare parts of the fuse or the repaired fuse again...

Embodiment 2

[0036] figure 2 It shows the flow chart of the method for detecting the reliability of miniature fuses in nuclear power plants provided by the second embodiment of the present invention when detecting the fuses in the pre-spare state, and the details are as follows.

[0037] Step S21, using a magnifying glass or a microscope to inspect the appearance of the fuse in the state before the spare part of the nuclear power plant.

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

[0039] In step S22 , non-destructive testing is performed on the fuse that passes the visual inspection to obtain performance parameters of th...

Embodiment 3

[0070] Figure 4 It shows 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 to detect the fuses in the pre-use state. In this embodiment, if the spare parts tested by the detection method of the second embodiment Before being used in a nuclear power plant, or before a fuse repaired after a failure is reused in a nuclear power plant, the detection described in Embodiment 3 needs to be carried out, which is described in detail as follows.

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

[0072] In this embodiment, the first non-destructive testing is carried out on the fuse to be used in the nuclear power plant, and various performance parameters of the fuse are obtaine...

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Abstract

The invention is suitable for a power equipment online digital detection and monitoring technology, belongs to the key technical field of million-kilowatt nuclear plants, and provides a small fuse reliability detecting method for a nuclear plant. The method includes the following steps: detecting states of a fuse in the nuclear plant, wherein the states include an original state as a spare part, an original state before use, a state in operation, and a use state in fault analysis or aging analysis; and processing the fuse according to detection results. Through detection of different states of the fuse, reliability of the fuse can be assessed, the risk of reactor tripping and turbine tripping of units is reduced, and safety and reliability of operation of the nuclear plant are improved.

Description

technical field [0001] The invention belongs to the on-line digital state detection and monitoring technology of electric equipment, and also belongs to the key technical field of a mega-kilowatt nuclear power plant, in particular to a detection method for a small fuse in a nuclear power plant. Background technique [0002] A nuclear power plant is a power plant that uses the energy released by nuclear fission or fusion reactions to generate electricity. In order to protect the health of the nuclear power plant staff and the residents around the nuclear power plant, the design, construction and operation of the nuclear power plant adopt 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 be able to In the event of various natural disasters, such as earthquakes, tsunamis, floods, etc., or man-made fires, explosions, etc., it can a...

Claims

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Application Information

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Patent Type & Authority Applications(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
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