Reuse method for thrust segment and extension segment used parts 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 delivery cycle, and difficulty in borrowing strategic spare parts, achieving high implementation success rate, reducing maintenance costs, Guarantee the effect of cost reduction and efficiency increase
Active Publication Date: 2019-08-30
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 reuse method for thrust segment and extension segment used parts of a nuclear power plant core measurement system. According to the reuse method for the thrust segment and extension segment used parts of the nuclear power plant core measurement system, weld seams of a thrust segment and an extension segment and weld seams of the thrust segment and a finger sleeve are separated by machining treatment, and the size of relevant welding grooves of the thrust segment and the extension segment is subjected to machining treatment to meet welding process requirements, so thatfield use requirements of spare parts of the thrust segment and the extension segment are met. With adoption of the reuse method for the thrust segment and extension segment used parts of the nuclearpower plant core measurement system, the utilization rate of thrust segment and extension segment spare parts can be increased, the maintenance cost can be greatly reduced, successful implementationof cutting displacement work of the finger sleeve can be ensured, and smooth implementation of power plant overhaul is guaranteed.
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