Nondestructive detection device for boiler pressure vessel pipeline

A non-destructive detection and boiler pressure technology, which is applied in pipeline systems, supporting machines, gas/liquid distribution and storage, etc., can solve the problems of point-like distribution detection and continuous detection, and achieve no leak point detection cost, cost saving, The effect of simple and convenient operation

Active Publication Date: 2020-06-12
张占奎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that current magnetic particle flaw detection instruments have point-like distribution detection when detecting cylindrical pressure pipes of boilers and pressure vessels and cannot realize continuous detection along the circumferential surface, the present invention provides a device that can rotate around the circumference of cylindrical pressure pipes to realize continuous detection. Detection device, so as to meet the requirements of high-efficiency and high-quality non-destructive detection, to achieve the purpose of non-leakage point detection and cost saving

Method used

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  • Nondestructive detection device for boiler pressure vessel pipeline
  • Nondestructive detection device for boiler pressure vessel pipeline
  • Nondestructive detection device for boiler pressure vessel pipeline

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Example 1: One such as figure 1 The shown magnetic particle nondestructive detection device for pressure pipelines is mainly used in the nondestructive detection process of boilers and pressure vessel pipelines. figure 1 with figure 2 It can be seen that the device mainly includes a casing 1, a handle 2, a gear belt 3, a magnetic particle detector main body 4, a metal yoke column 5, a searchlight 7, and a power supply 22. The handle 2 is located on the back side of the casing 1, the main body 4 of the magnetic particle detector is located inside the casing, the metal yoke column 5 fixedly connected on both sides of the main body 4 of the magnetic particle detector is exposed outside the casing, and the searchlight 7 is fixed on both sides of the metal On the housing of the yoke column 5 bracket.

[0032] by figure 2 It can be seen that the crawler belt 3 is located at symmetrical positions on both sides of the casing. When the crawler belt 3 is set on the outside of the p...

Embodiment 2

[0040] Embodiment 2: On the basis of embodiment 1, the magnetic field part of the device is further provided, so that the ends of each metal yoke column are respectively installed with metal rollers 25 through the metal wheel base 44 and the shaft, and the metal rollers 25 are supported on the outer wall of the pressure pipe . The magnetism of the metal yoke column is transmitted to the outer side wall of the pressure pipe 46 through the metal wheel base 44 and the metal roller 25, and the rotation flexibility of the device can be improved by the metal roller 25.

Embodiment 3

[0041] Embodiment 3: On the basis of implementation 1, a powder sprayer is installed on the outside of the casing or in the detection area of ​​the casing. The powder sprayer includes a magnetic powder chamber 26 and an air pressure chamber 27. The air pressure chamber 27 is a equal diameter cylinder A piston 28 is fitted in a matching suit. The air pressure chamber 27 has an inlet at the head end, and the end is connected to the magnetic powder chamber 26 through a filter layer 29. The magnetic powder chamber 26 is provided with a powder filling port and a spray head 30. The powder sprayer also includes a booster tank 33. The booster tank 33 is provided with a pressure injection nozzle and an outlet. The outlet is in closed communication with the inlet of the air pressure chamber 27 through the solenoid valve 34 and the air pressure pipe 35.

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Abstract

The invention discloses a nondestructive detection device for a boiler pressure vessel pipeline. The device comprises a shell, a handle, a magnetic powder detector host, metal magnet yoke columns, a searchlight, a power supply and the like. The handle is located on the rear side of the shell, the magnetic powder detector host is located in the shell, the tail ends of the metal magnet yoke columnswhich are symmetrically and fixedly connected to the two sides of the magnetic powder detector host are exposed out of the shell, and the searchlight is fixed to the shell between the metal magnet yoke columns on the two sides. The metal magnet yoke columns on the two sides can be always kept to be tightly attached to the outer surface of the pressure pipeline and rotate along the circumference, so that magnetic powder detection on the circumferential surface of the pressure pipeline is continuously detected, the requirements for high-efficiency and high-quality nondestructive detection are met, the purposes of leakage-point-free detection and cost saving are achieved, and operation is easy and convenient.

Description

Technical field [0001] The invention belongs to the field of magnetic particle flaw detection equipment for pressure pipelines of special equipment, and specifically relates to a nondestructive detection technology for boilers and pressure vessel pipelines. Background technique [0002] During the manufacture or use of pressure piping components of boilers and pressure vessels, magnetic particle inspection is often used to inspect the defects on the outer surface of the pressure piping. Magnetic particle inspection is the most sensitive to surface defects. After the pressure pipeline is applied to the boiler and formed by pipeline welding, it is usually necessary to further inspect the pressure pipeline. At this time, the inspection pays more attention to the damage of the pressure pipeline surface due to processing, such as welds, elbows and local damage. Magnetic particle detection is often used for the external surface detection of pressure pipes on boilers, which is more sens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/84F16M13/02F16M3/00F16M7/00F17D5/02
CPCG01N27/84F16M13/02F16M3/00F16M7/00F17D5/02Y02E30/30
Inventor 张占奎李婧张彦奎韩保生宋寅南立志张黎明张莉
Owner 张占奎
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