A method for handling abnormal shaft insulation of the main pump motor of a nuclear reactor
A technology for abnormal handling and nuclear reactors, applied in the manufacture of motor generators, electromechanical devices, electrical components, etc., can solve the problems of high maintenance costs, waste of human and material resources, etc., and achieve low maintenance costs, saving manpower and material resources, and high troubleshooting efficiency Effect
Active Publication Date: 2020-03-03
LINGAO NUCLEAR POWER +4
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Problems solved by technology
[0009] The purpose of the present invention is to provide a method for handling abnormal shaft insulation of the main pump motor of a nuclear reactor. Resource-wasting technical issues
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[0060] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein like or similar reference numerals designate like or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0061] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must ha...
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The invention relates to the technical field of a reactor main pump of a nuclear power plant, and provides a shaft insulation abnormality treatment method of a main pump motor of a nuclear reactor, comprising the following steps: S1, heating each part of the motor and detecting the shaft insulation state; S2, checking the shaft insulation state of the insulation material between the motor accessories and the motor; S3, checking the insulation state of the insulation groove, the stopper and the shaft of the insulation pin of the motor; 4, checking the insulation state of the shaft of the anti-loosening wire and the insulation pin of the connecting bolt between the upper bearing chamber and the stator frame in the motor; S5, checking the insulation state of the integral shaft between the topshaft oil pump set, oil pressure switch, oil level switch and the upper bearing; S6, checking the shaft insulation state of the temperature measuring probe on the upper bearing and the lower bearingin the motor; S7, checking the shaft insulation state of the lower bearing housing; S8, Check the shaft insulation condition of the upper bearing housing. The method has the advantages of high checking efficiency of shaft insulation abnormality, low maintenance cost and saving manpower and material resources.
Description
technical field [0001] The invention relates to the technical field of reactor main pumps of nuclear power plants, and in particular provides a method for handling abnormal shaft insulation of nuclear reactor main pump motors. Background technique [0002] The reactor main pump of a domestic nuclear power plant is the 100 type main pump, and the 100 type nuclear reactor main pump motor adopts a certain type of motor produced by the French JSPM company and the domestic ADJV company (a joint venture between JSPM and Dongfang Electric). The main pump motor of Type 100 nuclear reactor is a vertical squirrel-cage type, single-speed three-phase induction motor with a voltage of 6.6kV, a rated power of 6500kW, and a rated speed of 1485rpm. [0003] The upper part of the motor of the 100-type nuclear reactor main pump is equipped with a combined two-way Kingsbury type thrust bearing and two radial bearings. The radial bearings are placed above and below the thrust bearings, and are...
Claims
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IPC IPC(8): H02K15/00
CPCH02K15/0006
Inventor 何继强侯晔周峰安建军张菁
Owner LINGAO NUCLEAR POWER