Nondestructive testing device for pressure vessel of nuclear power unit

A pressure vessel, non-destructive testing technology, applied in the mechanical field, can solve the problems of high radiation risk factor, frequent installation, long time period, etc.

Pending Publication Date: 2021-08-20
RES INST OF NUCLEAR POWER OPERATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the large number of welds in pressure vessels and their wide distribution, it usually takes a long time to inspect the welds of pressur

Method used

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  • Nondestructive testing device for pressure vessel of nuclear power unit
  • Nondestructive testing device for pressure vessel of nuclear power unit
  • Nondestructive testing device for pressure vessel of nuclear power unit

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Embodiment Construction

[0026] Such as figure 1 As shown, the reactor pressure vessel detection device consists of a lifting column 1, a lifting guide mechanism 2, a support frame 3, a rotating platform 4, a tangential inspection tool for the connecting weld of the cylinder body 5, a compound inspection tool 6 for the internal connection of the connecting pipe, and an inner circle of the connecting pipe. Angle inspection tool 8 and pressure vessel shell inspection tool 9 are composed.

[0027] The lifting column 1 can be spliced ​​by multiple short columns, and a rack is arranged on the column. The supporting frame 3 is composed of a central connecting piece 13 and four or three supporting legs 14, and the three or four supporting legs are connected with the central connecting piece at circumferentially equal angles.

[0028] Such as Figure 5 As shown, the lifting frame 3 inserts the simulated guide column 18 pre-installed on the thread of the pressure vessel flange surface 7 through the support l...

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Abstract

The utility model relates to the field of machinery and particularly relates to a nondestructive testing device for a pressure vessel of a nuclear power device. An existing pressure container is long in inspection period, the number of times of water lifting and water entering of equipment is large, and dependence on a ring crane is high. The device comprises a lifting stand column, a lifting guide mechanism, a supporting rack, a rotary motion platform, a barrel connecting pipe connection welding seam tangential inspection tool, a connecting pipe internal composite inspection tool, a connecting pipe inner fillet inspection tool and a pressure container barrel inspection tool, wherein the lifting stand column penetrates through the lifting guide mechanism, and the lifting guide mechanism is connected with the supporting rack; the lifting guide mechanism is arranged in the center above the supporting rack, and the lifting stand column is arranged in the middle of the supporting rack and the lifting guide mechanism. According to the device, full-range ultrasonic nondestructive detection of the nuclear power plant pressure vessel is realized, and accurate and efficient detection of the nuclear power plant is realized.

Description

technical field [0001] This patent relates to the field of machinery, in particular to a non-destructive testing device for pressure vessels of nuclear power plants. Background technique [0002] Due to the large number of welds in pressure vessels and their wide distribution, it usually takes a long time to inspect the welds of pressure vessels with other equipment, and the equipment is installed frequently in and out of water, and the radiation risk factor is relatively large. The number of times the equipment is lifted and launched into the water is high, and the number of times the crane needs to be used is high, and the requirements for the cooperation of the ring crane are relatively high. It is necessary to design a set of nuclear power plant reactor pressure capacity detection device, which can shorten the pressure vessel inspection cycle, reduce the number of equipment lifting and launching, and reduce the dependence on the ring crane. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/22
CPCG01N29/04G01N29/223G01N2291/0289G01N2291/2695
Inventor 王俊涛张志义王波杨崇安王龙许远欢秦华容柯华虎陈姝尹鹏罗玉文辛宏伟柯涛徐阳王洪伟周文夏青冯美名管朝鹏
Owner RES INST OF NUCLEAR POWER OPERATION
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