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Reactor core thermocouple inserting and pulling device

A technology for plugging and unplugging devices and thermocouples is applied in the fields of reactors, nuclear power generation, nuclear reactor monitoring, etc. It can solve the problems of complex procedures, lack of self-maintenance capabilities, and high technical difficulty of core thermocouples, and achieves convenient plugging and unplugging operations. Effect

Pending Publication Date: 2020-08-25
CNNC NUCLEAR POWER OPERATION MANAGEMENT +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In related technologies, the replacement and maintenance of core thermocouples relied heavily on foreign companies before, and the country did not have independent maintenance capabilities. Moreover, the replacement and maintenance of core thermocouples was technically difficult, with large radiation doses at the work site and complicated procedures.

Method used

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  • Reactor core thermocouple inserting and pulling device
  • Reactor core thermocouple inserting and pulling device

Examples

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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] figure 1 It is a perspective view of a core thermocouple insertion and extraction device according to an exemplary embodiment. figure 2 It is a side view of a core thermocouple insertion and extraction device shown according to an exemplary embodiment. like figure 1 and figure 2 As shown, the core thermocouple plugging device includes: a main shaft 15, a handle 10, a connecting rod 11, a pull rod 12, a first clamping claw 13 and a second clamping claw 14;

[0038] One end of the connecting rod 11 can be connected to the upper end of the main shaft 15, and the other end of the connecting rod 11 can be axially connected between the two ends of the handle 10, so that the handle 10 and the main shaft 15 can form a lever structure;

[0039] One end of the handle 10 can be axially connected to the upper end of the pull rod 12, ...

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Abstract

The invention belongs to the technical field of nuclear power maintenance and particularly relates to a reactor core thermocouple inserting and pulling device. According to an embodiment, a lever mechanism is formed between a handle and a spindle, and under the condition that a second clamping grip clamps a thermocouple sheath and a first clamping grip clamps a thermocouple, one end of the handledrives the first clamping grip to move upwards through a pull rod if the other end of the handle is pressed, and the thermocouple is pulled out from the thermocouple sheath; and the end of the handledrives the first clamping grip to move downwards through the pull rod if the other end of the handle is lifted, and the thermocouple is inserted into the thermocouple sheath. Therefore, inserting andpulling operation of the thermocouple can be convenient, further, inserting and pulling force is easy to control, and accuracy of inserting and pulling of the thermocouple is improved.

Description

technical field [0001] The invention belongs to the technical field of nuclear power maintenance, and in particular relates to a core thermocouple insertion and extraction device. Background technique [0002] The thermocouple of the pressurized water reactor nuclear power plant belongs to the core temperature measurement system, which is used to measure the outlet temperature of the reactor core. The thermocouple signal is sent to a dedicated microcomputer for relevant calculation and analysis, and it can provide operators with the temperature of the core coolant in a timely manner under design basis accidents and severe accident conditions. [0003] In related technologies, the replacement and maintenance of core thermocouples relied heavily on foreign companies before, and the country did not have independent maintenance capabilities. Moreover, the replacement and maintenance of core thermocouples was technically difficult, with high radiation doses at the work site and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/02G21C17/112
CPCB25B27/02G21C17/112Y02E30/30
Inventor 王浩钧倪燕飞韩卫国金涛柳辉
Owner CNNC NUCLEAR POWER OPERATION MANAGEMENT
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