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Nuclear reactor pressure vessel pipeline inner wall debubbling device and method

A technology of pressure vessels and nuclear reactors, applied in reactors, cooling devices, nuclear engineering, etc., can solve problems such as failure to work, and achieve an obvious effect of pumping

Pending Publication Date: 2019-07-05
RES INST OF NUCLEAR POWER OPERATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] These two methods of defoaming are no problem for straight pipes, and they do not work at all for pipes with necks

Method used

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  • Nuclear reactor pressure vessel pipeline inner wall debubbling device and method
  • Nuclear reactor pressure vessel pipeline inner wall debubbling device and method
  • Nuclear reactor pressure vessel pipeline inner wall debubbling device and method

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] A device for removing bubbles on the inner wall of a nuclear reactor pressure vessel pipeline includes: a slider assembly 1, a linear drive assembly 2, a main air pipe 3, an air extraction device 4, a floating ball 5, a hose 6, an air pipe joint 7, a linear bearing 8, a nut 9, Slide block 10, front support base 11, guide shaft 12, rear support base 13 and leading screw 14 etc.

[0031] Among them, the function of the linear drive assembly 2 is to drive the slider assembly 1 to move linearly. When working, the front and rear ends of the linear drive assembly 2 need to be fixed in the pipeline. Bring and so on. The linear drive assembly 2 includes: a front support base 11, two guide shafts 12, a rear support base 13 and a lead screw 14, wherein one end of each guide shaft 12 is fixed on the front support base 11, and the other e...

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Abstract

Belonging to the technical field of ultrasonic detection, the invention in particular relates to a floating nuclear reactor internals baffle bolt inspection device. The inspection device has the characteristics of compact structure, convenient transportation, lifting and operation, low requirements for the motion performance of a floating apparatus, low requirements for the operation skills of thestaff, and high inspection efficiency. The invention guarantees that two sides are always fitted with baffles through roll balls when the device works, so that the detection can be based on two sides, thus improving the detection efficiency. The probe involved in the detection device can move transversely, move forward and backward and rotate, the transverse movement of the probe can send the probe to the transverse position of a detected object, the forward and backward stretching of the probe can send the probe to the top of the detected object, rotation of the probe can make the angle of the probe coincide with the that of the detected object, thereby further improving the detection efficiency.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic detection, and in particular relates to a device and method for removing bubbles on the inner wall of a nuclear reactor pressure vessel pipeline. Background technique [0002] The main pipeline and safety injection pipe of the nuclear reactor pressure vessel are one of the most critical equipment in nuclear equipment. Their performance directly affects the operation safety of the nuclear power plant. According to relevant standards, they need to be regularly inspected non-destructively. [0003] The inspection of main pipeline and safety injection pipe weld seam mainly includes: ultrasonic, video and ray. During the inspection, the entire pressure vessel is filled with water. Due to some reasons, such as: the bubbles generated by the equipment itself, the bubbles generated by the pipeline due to the temperature difference, some bubbles will be generated on the inner wall of the pipeline, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C15/16
CPCG21C15/16Y02E30/30
Inventor 吴东栋张志义李可石磊
Owner RES INST OF NUCLEAR POWER OPERATION
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