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Crossed shearing assembly for dismantling nuclear reactor detector assembly

A detector assembly, nuclear reactor technology, applied in shearing device, shearing machine equipment, accessories of shearing machine, etc., can solve the problem of not considering replacement, etc.

Inactive Publication Date: 2020-10-23
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design life of the two detector components is the whole life of the power plant, and replacement is not considered except in special circumstances

Method used

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  • Crossed shearing assembly for dismantling nuclear reactor detector assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a nuclear reactor detector component dismantling cross shear assembly, including cross cutter 2, push rod 3, base 4 and drive mechanism 6;

[0037] One end of the push rod 3 is connected to the power output shaft of the drive mechanism 6, and the other end is provided with a V-shaped groove;

[0038] The cross cutter 2 is fixed on the base 4, the cross cutter 2 includes a cutting end and a handle end, the cutting end is used to cut off the measuring device assembly, and the handle end is embedded in a V-shaped groove , a return spring 1 is arranged between the two handles at the end of the handle;

[0039] The cross cutter 2 is a scissors structure; the driving mechanism 6 is an electric cylinder.

[0040] The working process of this embodiment is as follows:

[0041] When the detector assembly needs to be sheared, the driving mechanism 6 is operated, and the power output shaft of the driving mechanism 6 pushes the push rod 3 to move in the...

Embodiment 2

[0043] Such as figure 1 As shown, this embodiment is based on Embodiment 1, the base 4 includes a fixed body, the fixed body is a hollow cylindrical structure, one end of the fixed body is provided with a fixing groove, and the cross cutter 2 is fixed on In the fixed groove, the end of the push rod 3 away from the V-shaped groove passes through the fixed body and is connected to the power output shaft of the drive mechanism 6; the fixed groove includes a bottom plate, and two side plates are symmetrically arranged on the bottom plate, and the V-shaped Both side walls of the groove are in contact with the inside of the side plate.

[0044] In this embodiment, the two side plates can play a guiding role in the movement of the V-shaped groove, and the hollow cylindrical structure can guide and limit the push rod 3 to improve the stability of the movement.

Embodiment 3

[0046] Such as figure 1As shown, this embodiment is based on Embodiment 1, and also includes a connecting sleeve 5, one end of the push rod 3 is connected to the power output shaft of the driving mechanism 6 through the connecting sleeve 5, and the connecting sleeve 5 protrudes radially Based on the base 4 and the driving mechanism 6; the connecting sleeve 5 includes a cylinder, and two support plates are arranged on the outer wall of the cylinder.

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Abstract

The invention discloses a crossed shearing assembly for dismantling a nuclear reactor detector assembly. The crossed shearing assembly comprises a crossed cutter, a push rod, a base and a driving mechanism; and one end of the push rod is connected with a power output shaft of the driving mechanism, and the other end of the push rod is provided with a V-shaped groove; the crossed cutter is fixed onthe base and comprises a shearing end and a cutter handle end, the shearing end is used for shearing the detector assembly, the cutter handle end is embedded in the V-shaped groove, and a return spring is arranged between two cutter handles at the cutter handle end. The crossed shearing assembly achieves shearing separation of the high-level section and the low-level section of the detector assembly, and has the advantages of small structure and convenient operation.

Description

technical field [0001] The invention relates to the technical field of refueling overhaul of a pressurized water reactor nuclear power plant, in particular to a cross-type shearing assembly for dismantling a nuclear reactor detector assembly. Background technique [0002] The detectors used in the core measurement system in the second-generation and second-generation pressurized water reactor nuclear power plants are divided into thermocouples for temperature measurement and neutron flux detectors for flux measurement. The thermocouple is introduced from the top cover of the pressure vessel, guided by the thermocouple column assembly, and positioned at the specified measuring point position, and the lower end of the thermocouple is located at the core outlet of the upper core plate. The flux detector is introduced from the bottom head of the pressure vessel, guided through the instrument sleeve and finger sleeve when necessary, and enters the guide pipe inside the fuel assem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D31/00B23D33/00
CPCB23D31/00B23D33/00
Inventor 熊思勇李娜杨其辉安彦波余志伟湛卉瓮松峰钟元章黄宗仁王炳炎陈书华黄辉王尚武董岱林张安锐
Owner NUCLEAR POWER INSTITUTE OF CHINA
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