Combined type ultrasonic-eddy current detection probe clamping structure

A technology of eddy current detection probe and clamping structure, which is applied in the direction of material analysis, measuring devices and instruments using sound waves/ultrasonic waves/infrasonic waves, which can solve problems such as probe layout restrictions and achieve the effect of preventing water overflow

Active Publication Date: 2015-07-01
CHINA NUCLEAR POWER OPERATION TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The narrow space inside the penetration part brings great restrictions to the layout of the probe

Method used

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  • Combined type ultrasonic-eddy current detection probe clamping structure
  • Combined type ultrasonic-eddy current detection probe clamping structure
  • Combined type ultrasonic-eddy current detection probe clamping structure

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] A combined ultrasonic-eddy current detection probe clamping structure, its structure is as follows figure 1 As shown, it includes a base structure and a probe-driven four-bar mechanism. The probe-driven four-bar mechanism includes a compression spring nut 6, a compression spring 7, an upper compression ring 8, a probe liner 9, a core tube 11, a new combination probe 12, and a connecting rod. Rod 13, rotating shaft pin 14, ejector rod 15 and base 20;

[0028] The core tube 11 is cylindrical, and the compression spring nut 6, the compression spring 7, and the upper pressure ring 8 are sequentially set on the outside of the core tube 11 from top to bottom, and the compression spring nut 6 has an internal thread, which is connected to the core tube 11 through the thread;

[0029] The probe liner 9 is located below the upper pressure ring 8 and inclu...

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PUM

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Abstract

The invention belongs to a nuclear power station primary loop system and the field of the nondestructive testing technology in other industries and in particular relates to a combined type ultrasonic-eddy current detection probe clamping structure. The combined type ultrasonic-eddy current detection probe clamping structure comprises a base body structure and a probe driving four-link mechanism, wherein the base body structure comprises a water level measurement ultrasonic wave normal probe (1), a miniature coaxial cable socket (3), a guide housing (4), a cable socket mounting base (5), a probe cable and a miniature coaxial cable plug (10), a multi-core cable plug (17) and a coaxial cable bundle (18); the probe driving four-link mechanism comprises a compressed spring nut (6), a compression spring (7), an upper part compression ring (8), a probe lining plate (9), a core pipe (11), a novel combined probe (12), a connecting rod (13), an ejection rod (15) and a base (20). The combined type ultrasonic-eddy current detection probe clamping structure has the beneficial effects that the detection probe and the surface of a detected object are enabled to be fitted well, the compression force is enabled to be uniform, the probe is tightened up and is enabled not to be damaged when in installation, water-leaching coupling water is guaranteed to be sufficient and superfluous water is prevented from overflowing.

Description

technical field [0001] The invention belongs to the technical field of non-destructive testing of primary circuit systems of nuclear power plants and other industries, and in particular relates to a combined ultrasonic-eddy current testing probe clamping structure. Background technique [0002] According to the relevant requirements of the ASME code, the reactor pressure vessel top cover penetrations of nuclear power units should be inspected in service, and the inspection scope includes the penetration body and the J-shaped weld connected to the top cover head. [0003] Reactor pressure vessel penetrations are generally made of Alloy600 or Alloy690. It vertically penetrates the upper head of the reactor pressure vessel and forms a J-shaped weld with the inner wall of the pressure vessel head. The inner diameter of the penetration part is generally 60-70mm, and the wall thickness is about 15-20mm. The J-shaped weld is a dissimilar metal weld. Usually, in order to improve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/90G01N29/22G01N27/9013G01N27/9093
Inventor 聂勇丁冬平蔡家藩周礼峰王仕村
Owner CHINA NUCLEAR POWER OPERATION TECH
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