Reuse method of thrust section and extension section of nuclear power plant core measurement system
A measurement system and extension technology, applied in nuclear power generation, nuclear reactor monitoring, reactors, etc., can solve problems such as high price, long supply cycle, and difficulty in borrowing strategic spare parts, so as to ensure cost reduction, efficiency increase, and maintenance cost reduction. , the effect of high implementation success rate
Active Publication Date: 2022-03-15
GUANGXI FANGCHENGGANG NUCLEAR POWER +1
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Problems solved by technology
In the process of pipe cutting and shifting, spare parts for thrust section and extension section are needed, which can only be purchased from France at present, and there are problems such as long delivery cycle and high price. The number of spare parts reserves is limited, and it is difficult to borrow strategic spare parts
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[0018] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0019] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.
[0020] According to the preferred embodiment of the present invention, the technical core of the reuse method for the thrust section and the extension section of the nuclear power plant core measurement system is to weld the thrust section and the extension section, and the thrust section and the finger sleeve The weld seam is separated, and at the same time, the relevant welding groove dimensions of the thrust section and ...
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The invention discloses a method for reusing old parts of a thrust section and an extension section of a core measurement system of a nuclear power plant. The reuse method of the thrust section and the extension section of the nuclear power plant core measurement system separates the thrust section and the extension section weld seam, the thrust section and the finger sleeve weld seam through machining processing, and simultaneously processes the thrust section The relevant welding groove dimensions of the thrust section and the extension section shall meet the requirements of the welding process and meet the on-site use requirements of the spare parts of the thrust section and the extension section. The reuse method of the thrust section and the extension section of the nuclear power plant core measurement system can improve the utilization rate of the thrust section and the extension section spare parts, can greatly reduce the maintenance cost, and can ensure the successful implementation of the casing cutting and displacement work. Ensure the smooth progress of power plant overhaul.
Description
technical field [0001] The invention relates to the field of nuclear power plant core measurement systems, in particular to a method for reusing the old parts of the thrust section and the extension section of the nuclear power plant core measurement system. Background technique [0002] The function of nuclear power plant core measurement system is to provide reactor core neutron flux, reactor fuel assembly coolant temperature and reactor pressure vessel water level measurement data. The neutron flux measurement function is completed through 50 finger sleeves inserted into the fuel assembly and its internal neutron flux measurement probes. The finger sleeves are used as the passage for the core neutron flux detector to move and protect the detector. Function, the neutron flux detector can move inside the finger bushing, and the outer wall of the finger bushing is in direct contact with the coolant of the primary circuit, which belongs to the pressure boundary of the primary...
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IPC IPC(8): G21C17/108G21C17/017
CPCG21C17/108G21C17/017Y02E30/30
Inventor 韩星杨峰陈彦政吴其建范习连
Owner GUANGXI FANGCHENGGANG NUCLEAR POWER