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Integral disassembling and assembling device for nuclear reactor inverted driving mechanism

A driving mechanism and nuclear reactor technology, applied in the direction of reactors, nuclear reaction control, reactor fuel elements, etc., can solve the problems of complex disassembly and installation operations, achieve intuitive operation, prevent damage to the driving mechanism, and operate reliably.

Pending Publication Date: 2020-09-15
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: the dismounting and installation process of the existing nuclear reactor inverted drive mechanism is complex, and the present invention provides an integral disassembly and assembly device for the nuclear reactor inverted drive mechanism that solves the above problems

Method used

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  • Integral disassembling and assembling device for nuclear reactor inverted driving mechanism
  • Integral disassembling and assembling device for nuclear reactor inverted driving mechanism
  • Integral disassembling and assembling device for nuclear reactor inverted driving mechanism

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Embodiment 1

[0044] This embodiment provides an overall disassembly and assembly device for an inverted driving mechanism of a nuclear reactor, including a three-degree-of-freedom motion platform and an adapter sleeve 4, and the three-degree-of-freedom motion platform drives the adapter sleeve 4 to move to realize the alignment of the adapter sleeve. The three-way position adjustment of the barrel in the X-axis direction, the Y-axis direction, and the Z-axis direction takes the height direction perpendicular to the ground as the Z-axis direction; the three-degree-of-freedom motion platform can directly drive the adapter sleeve 4 along the X-axis direction, Y-axis direction, and Z-axis direction, or a combination of other motion modes, as long as it can adjust the position of the adapter sleeve 4 in the X-axis direction, Y-axis direction, and Z-axis direction. . Specifically, the structural composition of the three-degree-of-freedom motion platform may include some screw drive mechanisms, l...

Embodiment 2

[0047] Further improvement based on the basis of Embodiment 1, the three-degree-of-freedom motion platform directly drives the adapter sleeve 4 to move linearly in three directions along the X-axis, Y-axis, and Z-axis directions, and three sets of linear motion mechanisms can be used for adapter connection. Or a combination of a group of linear moving mechanisms and a group of two-way moving mechanisms is adopted. In this embodiment, the three-degree-of-freedom motion platform includes a lifting assembly 2 and a cross sliding assembly 3. The lifting assembly 2 drives the cross sliding assembly 3 to move up and down along the Z-axis direction through a linear guide mechanism; the cross sliding assembly 3 drives the adapter sleeve 4 in the Move along the X-axis or Y-axis on the horizontal plane; and in order to ensure the flexibility and stability of structural adjustment, the cross slide assembly 3 is installed on the sliding part of the lifting assembly 2, and the adapter sleev...

Embodiment 3

[0055] Further improvement on the basis of embodiment 2, such as figure 1 As shown, there are two types of drive mechanisms: A-type drive mechanism and B-type drive mechanism. The A-type drive mechanism includes an upper A-type drive mechanism and a lower A-type drive mechanism. The structure of the drive mechanism is divided into an upper assembly 21 and a middle assembly. 22 and lower assembly 23, the structure of upper strata A-type driving mechanism and lower floor A-type driving mechanism is identical, and length is different, and B-type driving mechanism is completely different from A-type driving mechanism structure, and its length is identical with lower floor A-type driving mechanism. Since the driving mechanism is divided into two different types, the adapter sleeve 4 supporting the drive mechanism is also divided into two adaptation methods: the adapter sleeve A18 (such as Figure 5 ), adapter sleeve B (19) (see attached Figure 6 ), the structural dimensions of th...

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Abstract

The invention discloses an integral disassembling and assembling device for an inverted driving mechanism of a nuclear reactor. The device comprises a three-degree-of-freedom motion platform and an adaptive sleeve, the three-degree-of-freedom motion platform drives the adaptive sleeve to move, adjustment of the position of the adaptive sleeve in the X-axis direction, the Y-axis direction and the Z-axis direction is achieved, and the height direction perpendicular to the ground serves as the Z-axis direction; when in use, the adaptive sleeve is used for supporting the integral structure of themiddle assembly and the lower assembly of the driving mechanism and supporting the upper assembly of the driving mechanism; and the three-degree-of-freedom motion platform drives the adaptive sleeve to move below the pressure container, so that the driving assembly supported on the adaptive sleeve is aligned to the mounting position, or the adaptive sleeve is aligned to the position of the drivingassembly to be dismounted. By the adoption of the device, the driving mechanism can be accurately aligned at the bottom of the pressure container and rapidly disassembled and assembled.

Description

technical field [0001] The invention relates to the technical field of nuclear reactors, in particular to an integral disassembly and assembly device for an inverted driving mechanism of a nuclear reactor. Background technique [0002] The driving mechanism of the reactor control rod assembly (abbreviated as the driving mechanism) is the actuator of the reactor control system and protection system. It drives the control rod assembly to move up and down in the core to realize the control of the reactor reactivity, thereby completing the reactor start-up and power adjustment. , power maintenance, normal shutdown and safe shutdown. When the reactor is initially installed, overhauled and decommissioned, the drive mechanism needs to be disassembled. [0003] In a nuclear reactor involved in the present invention, a plurality of drive mechanisms are arranged in layers at the bottom of the pressure vessel, including two types of drive mechanisms: A-type drive mechanism and B-type ...

Claims

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Application Information

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IPC IPC(8): G21C19/19G21C7/12
CPCG21C19/19G21C7/12Y02E30/30
Inventor 任荷王炳炎谭宏伟安彦波杜华罗英黄辉陈书华熊思勇
Owner NUCLEAR POWER INSTITUTE OF CHINA
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