An eddy current probe device for nuclear fuel rod eddy current detection
An eddy current detection and nuclear fuel rod technology, applied in nuclear engineering, nuclear power generation, nuclear reactor monitoring and other directions, can solve the problems of low detection accuracy, unable to locate the best detection position, affecting the normal use of nuclear fuel assemblies, etc. The effect of improving detection accuracy
Active Publication Date: 2019-05-21
SUZHOU NUCLEAR POWER RES INST +2
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Problems solved by technology
Limited by the space around the nuclear fuel rods, the eddy current detectors in the prior art often cannot be positioned at the best detection position, resulting in low detection accuracy and affecting the normal use of nuclear fuel assemblies
[0005] There are at least the following problems in the prior art: limited by the space around the nuclear fuel rods, the existing eddy current detection devices are often unable to locate the best detection position, resulting in low detection accuracy and affecting the normal use of nuclear fuel assemblies
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Embodiment Construction
[0028] An embodiment of the present application provides an eddy current probe device for eddy current testing of nuclear fuel rods.
[0029] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0030] figure 1 It is a device structure diagram of an embodiment of an eddy current probe device used for nuclear fuel rod eddy current detection described in this application. Although the present appl...
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The invention provides an eddy current probe device for nuclear fuel rod eddy current testing. The device comprises a support plate, a mounting block, a first flange and an eddy current testing element, wherein the support plate is provided with a slide chute, the mounting block is connected with the slide chute by a stud, the mounting block can slide along the slide chute, a first surface and a second surface, vertical to the slide chute, of the mounting block are respectively connected with the support plate by a first limit spring and a second limit spring, the first flange is connected with the mounting block by a first bolt and a second bolt, the first flange can rotate around the first bolt and the second bolt, an opening of a sealing face of the first flange is towards the mounting block, and the eddy current testing element is fixed in the sealing face of the first flange, and is used for performing eddy current testing on a nuclear fuel rod to be tested. By using various embodiments of the invention, the eddy current testing accuracy can be effectively improved.
Description
technical field [0001] The present application relates to the technical field of nuclear fuel rod detection, in particular to an eddy current probe device for nuclear fuel rod eddy current detection. Background technique [0002] During the operation of the nuclear reactor, oxides will be deposited on the nuclear fuel rods. Once the deposited oxide layer exceeds a certain thickness, it will seriously affect the normal use of the fuel assembly, and the nuclear fuel rods need to be replaced. Therefore, it is very important to accurately detect the thickness of the oxides deposited on the nuclear fuel rods so as to replace the nuclear fuel rods in time to ensure the normal use of the nuclear fuel assemblies. [0003] The eddy current test method is a common method to detect the oxide thickness of nuclear fuel rods. The eddy current test method mainly uses eddy current detectors to generate eddy currents in nuclear fuel rods, and calculates the thickness of oxides by detecting t...
Claims
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IPC IPC(8): G21C17/12
CPCG21C17/12Y02E30/30
Inventor 周国正顾楠程曦许小兵叶春谢剑芳
Owner SUZHOU NUCLEAR POWER RES INST