Lifting trolley and positioning device for pipe plugging of horizontal steam generator

A technology of steam generators and trolleys, applied in the direction of tube components, special tubes, color TV parts, etc., to achieve a simple and reliable structure

Pending Publication Date: 2021-05-11
CHINA NUCLEAR POWER OPERATION TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an upgrade trolley and positioning device for horizontal steam generator plugged tubes, so as to solve the problem that the steam generator plugged tubes are sent to the designated heat transfer tube nozzle

Method used

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  • Lifting trolley and positioning device for pipe plugging of horizontal steam generator
  • Lifting trolley and positioning device for pipe plugging of horizontal steam generator
  • Lifting trolley and positioning device for pipe plugging of horizontal steam generator

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as Figure 1~4 As shown, a lifting trolley 11 for pipe plugging of a horizontal steam generator includes a support frame 1, a telescopic module 4, an overturn module 5 and a drive module 6, wherein the overturn module 5 is installed on the support frame 1, and the The telescopic module 4 is installed on the overturning module 5, and the telescopic module 4 can be driven to flip and switch in the direction parallel or vertical to the axis of the lifting trolley 11 through the overturning module 5. A roller expansion device is installed on the telescopic module 4, and the telescopic module 4 can drive the roller The core rod in the expansion device 8 is pulled and rotated; the driving module 6 installed on the supporting frame 1 can drive the lifting trolley 11 to perform upgrading motion along the lifting bracket 10; the fi...

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Abstract

The invention relates to the technical field of nuclear power plant steam generator maintenance, and particularly discloses a lifting trolley and a positioning device for pipe plugging of a horizontal steam generator. The lifting trolley comprises a supporting frame, a telescopic module and an overturning module, wherein the overturning module is arranged on the supporting frame, the telescopic module is arranged on the overturning module, and the overturning module can drive the telescopic module to be overturned and switched in the direction parallel to or perpendicular to the axis of the lifting trolley. The device is simple and reliable in structure, and through modular design, each module can be quickly replaced without influencing other functions when failure occurs; two cameras are arranged at the top and the bottom of the lifting trolley and can be used for observing the actions of overturning, stretching, roller expanding, drawing and the like of the trolley, so that the whole pipe plugging implementation process is more intuitive; and the operation functions of emergency releasing and manual pipe plugging are added.

Description

technical field [0001] The invention belongs to the technical field of maintenance of steam generators in nuclear power plants, and in particular relates to a lifting trolley and a positioning device for pipe blocking of horizontal steam generators. Background technique [0002] The steam generator is one of the key equipments of the nuclear power plant, which plays the role of isolation and heat exchange between the primary and secondary loops. Manufacturing defects in the evaporator process may cause individual heat transfer tubes to exceed the technical specifications, and preventive plugging is required. In addition, during the normal operation of the nuclear power plant, due to its own defects or the effect of insoluble corrosion products, the heat transfer tubes As the running time increases, the heat transfer tube may be damaged, which will eventually lead to the leakage of radioactive materials on the primary side. Reliable plugging operation makes it out of active ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/10F16L55/18F16L55/30H04N7/18H04N5/247F16L101/10
CPCF16L55/10F16L55/18F16L55/30H04N7/18F16L2101/10H04N23/90
Inventor 丁明刘建明程檀卜俊刘攀胡卉桦龚卫民李辛玺王晨肖锐宫逸飞严巍峰姜华李江华尹哲张晓蒙赵忠伟陈金明
Owner CHINA NUCLEAR POWER OPERATION TECH
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