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CN-224231695-U - Magnetic powder detection device of hydroelectric equipment

CN224231695UCN 224231695 UCN224231695 UCN 224231695UCN-224231695-U

Abstract

The utility model belongs to the technical field of nondestructive testing, and relates to a magnetic powder testing device of hydroelectric equipment, which comprises a moving structure, wherein a battery for supplying power is arranged on the moving structure, an automatic magnetic adding structure is arranged below the moving structure and is electrically connected with the battery, a magnetic suspension spraying structure is arranged at the top of the moving structure, the lower end of the magnetic suspension spraying structure sequentially penetrates through the moving structure and the automatic magnetic adding structure and is used for spraying magnetic suspension, an optical shooting structure is also arranged on the moving structure and is used for shooting a testing result, the moving structure comprises a permanent magnet wheel, and the permanent magnet wheel is positioned at the bottom of the moving structure and is used for driving the device to perform magnetic attraction motion on the hydroelectric equipment. The automatic magnetic structure can move under the traction of the moving structure, thereby reducing the labor intensity and ensuring the detection quality.

Inventors

  • LI SHENGSHOU
  • HUANG XIANTAO
  • HUANG HUAJIAN
  • DONG XU
  • LIU FENG
  • YANG JIN
  • LIU SHOUBAO
  • CHEN MIN
  • LI BO
  • ZHAO BIN
  • HUANG BO
  • Qin Xianye
  • WANG HEYU

Assignees

  • 大唐水电科学技术研究院有限公司
  • 中国大唐集团科学技术研究总院有限公司
  • 中国大唐集团科学技术研究总院有限公司水电科学研究院

Dates

Publication Date
20260512
Application Date
20250403

Claims (10)

  1. 1. A magnetic powder detection device of hydroelectric equipment is characterized by comprising a moving structure (1), wherein a battery (106) for supplying power is arranged on the moving structure (1), an automatic magnetism adding structure (3) is arranged below the moving structure (1), the automatic magnetism adding structure (3) is electrically connected with the battery (106), a magnetic suspension spraying structure (2) is arranged at the top of the moving structure (1), the lower end of the magnetic suspension spraying structure (2) sequentially penetrates through the moving structure (1) and the automatic magnetism adding structure (3) to be used for spraying magnetic suspension, an optical shooting structure (4) is further arranged on the moving structure (1) to be used for shooting detection results, the moving structure (1) comprises a permanent magnet wheel (104), and the permanent magnet wheel (104) is arranged at the bottom of the moving structure (1) and is used for driving the device to perform magnetic attraction motion on the hydroelectric equipment.
  2. 2. The magnetic powder detection device of the hydroelectric equipment according to claim 1, further comprising a frame (101), wherein a battery (106) is fixed on one side of the frame (101), an automatic controller (107) is arranged on the other side of the frame (101), the automatic controller (107) is connected with an external terminal and is used for receiving instructions of the external terminal, a weld tracking device (105) is arranged at one end of the frame (101), the weld tracking device (105) is connected with the external terminal, an optical shooting structure (4) is arranged at the other end of the frame (101), a permanent magnet wheel (104) is arranged at the bottom of the outer side of the frame (101), a worm gear reducing motor (103) is connected, the worm gear reducing motor (103) is connected with a driving motor (102), the driving motor (102) is electrically connected with the automatic controller (107), the automatic magnetic adding structure (3) is arranged at the bottom of the inner side of the frame (101), and a magnetic suspension spraying structure (2) is arranged on the frame (101) and is electrically connected with the automatic controller (107).
  3. 3. The magnetic powder detection device of the hydroelectric equipment according to claim 2, wherein the weld joint tracking device (105) comprises a structural light module (1051), a binocular camera (1052) and a data transmission module (1053), the structural light module (1051), the binocular camera (1052) and the data transmission module (1053) are all arranged on the frame (101), the binocular camera (1052) and the data transmission module (1053) are electrically connected, and the data transmission module (1053) is connected with a peripheral terminal.
  4. 4. The magnetic powder detection device of the hydroelectric equipment according to claim 1, wherein the magnetic suspension spraying structure (2) comprises a tank body (201), the tank body (201) is arranged on the moving structure (1), a liquid adding opening (207) is formed in the upper end of the tank body (201), a liquid conveying pipe (203) is arranged at the lower end of the tank body (201), a nozzle (202) is connected to the lower end of the liquid conveying pipe (203), an inner container (205) is arranged in the tank body (201), the upper end and the lower end of the inner container (205) are respectively communicated with the liquid adding opening (207) and the liquid conveying pipe (203), a stirrer (206) is arranged on the inner container (205), a pressurizing pump (204) is further arranged in the tank body (201), and the pressurizing pump (204) and the stirrer (206) are electrically connected with the moving structure (1).
  5. 5. The magnetic powder testing device of a hydroelectric installation according to claim 4, wherein the agitator (206) is rotated to suspend the magnetic powder in the magnetic suspension at all times when the magnetic powder testing device is in operation.
  6. 6. A magnetic powder testing device of a hydropower device according to claim 1, characterized in that the automatic magnetizing structure (3) comprises an iron core (302), the iron core (302) is fixed at the bottom of the moving structure (1), a coil (301) is wound on the iron core (302), and the coil (301) is electrically connected with the battery (106).
  7. 7. A magnetic powder testing device of a hydropower device according to claim 6, characterized in that the bottom end of the iron core (302) is in contact with the object (5) to be tested.
  8. 8. A magnetic particle testing device for a hydropower device according to claim 1, characterized in that the optical shooting structure (4) comprises a protective cover (404), the protective cover (404) is fixed on the moving structure, the protective cover (404) is internally provided with a lighting unit and a camera (401), and the lighting unit and the camera (401) are adjacently arranged.
  9. 9. A magnetic particle testing apparatus for a hydropower device according to claim 8, wherein the lighting unit comprises a lighting head (403) and a luminaire (402), the lighting head (403) is fixed on the inner wall of the protective cover (404), and the luminaire (402) is fixed on the lighting head (403).
  10. 10. The magnetic powder detection device of a hydroelectric installation according to claim 8, wherein the protective cover (404) is an opaque outer shell, and a light-transmitting window is provided at the bottom of the protective cover, and the light-transmitting window is adapted to the camera (401).

Description

Magnetic powder detection device of hydroelectric equipment Technical Field The utility model belongs to the technical field of nondestructive testing, and relates to a magnetic powder testing device of hydroelectric equipment. Background The hydroelectric equipment needs to be subjected to magnetic powder detection periodically in the primary installation and life cycle, and whether surface or near-surface defects exist near the welding line is checked, wherein the main appearance form is cracks. The magnetic powder detection is to apply an external magnetic field to the ferromagnetic material to be detected to generate magnetism, then apply magnetic powder or magnetic suspension, and observe the distribution of magnetic marks on the surface to judge whether defects exist. If the surface and the near surface of the material have defects such as cracks, holes and the like, the defects can break magnetic lines in the material to form magnetic leakage of a magnetic field. The magnetic powder can be gathered at the position of the crack or defect under the action of the leakage magnetic field to form obvious magnetic powder gathering trace, thereby being convenient for observation and analysis. Traditional magnetic powder detection technology completely depends on manual operation and naked eye judgment, and is time-consuming and labor-consuming and has a plurality of limitations. The scaffold is very difficult to build in the equipment, serious safety accidents such as high-altitude falling and the like are easy to occur to detection personnel, ventilation in the equipment is poor, toxic and harmful gases contained in the equipment can damage the personnel and even death the personnel, the working environment is bad, and the artificial detection has the phenomenon of false omission. When magnetic powder detection is carried out manually, magnetic suspension is sprayed by one hand, the other hand holds a magnetic detector to carry out magnetism adding, and meanwhile, magnetic marks are observed through human eyes to judge whether defects exist. The process has a plurality of variables, such as flux, flow rate, injection angle, magnetization time, fluidity of the magnetic suspension and the like, which influence the final detection result, and the variables are difficult to control in a standardized way, only depend on experience and skill of field staff, and are difficult to ensure quality. Disclosure of utility model The utility model aims to provide a magnetic powder detection device of hydroelectric equipment, which aims to solve the technical problems that the magnetic powder detection technology of the hydroelectric equipment in the prior art completely depends on manual operation, has severe working environment and high labor intensity and has unstable detection quality. In order to achieve the purpose, the utility model is realized by adopting the following technical scheme: The application discloses a magnetic powder detection device of hydroelectric equipment, which comprises a moving structure, wherein a battery for supplying power is arranged on the moving structure, an automatic magnetic adding structure is arranged below the moving structure and is electrically connected with the battery, a magnetic suspension spraying structure is arranged at the top of the moving structure, the lower end of the magnetic suspension spraying structure sequentially penetrates through the moving structure and the automatic magnetic adding structure to spray magnetic suspension, an optical shooting structure for shooting detection results is also arranged on the moving structure, the moving structure comprises a permanent magnet wheel, and the permanent magnet wheel is positioned at the bottom of the moving structure and is used for driving the device to perform magnetic attraction movement on the hydroelectric equipment. Preferably, the moving structure further comprises a frame, the battery is fixed on one side of the frame, an automatic controller is arranged on the other side of the frame and connected with an external terminal for receiving instructions of the external terminal, the welding seam tracking device is arranged at one end of the frame, the optical shooting structure is arranged at the other end of the frame, the permanent magnet wheel is arranged at the bottom of the outer side of the frame and connected with a worm gear motor, the worm gear motor is connected with a driving motor, the driving motor is electrically connected with the automatic controller, the automatic magnetizing structure is arranged at the bottom of the inner side of the frame, and the magnetic suspension spraying structure is arranged on the frame and electrically connected with the automatic controller. Preferably, the weld joint tracking device comprises a structural light module, a binocular camera and a data transmission module, wherein the structural light module, the binocular camera and the data transmission module are arr