Device for automatically detecting and alarming plastic deformation of structural member of electric power pylon

A transmission tower, plastic deformation technology, applied in the direction of electromagnetic measuring device, electric/magnetic solid deformation measurement, etc., can solve the problem of online automatic monitoring and alarm that is not simple and easy to maintain, so as to avoid the instability and damage of the tower and improve the The effect of detection efficiency

Active Publication Date: 2012-08-22
STATE GRID CORP OF CHINA +1
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The automatic detection and alarm device for plastic deformation of transmission iron tower structural parts provided by the present invention solves the technical problem that the existing transmission line iron tower structural parts do not have simple, easy-to-maintain online automatic monitoring and alarm when plastic deformation occurs

Method used

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  • Device for automatically detecting and alarming plastic deformation of structural member of electric power pylon
  • Device for automatically detecting and alarming plastic deformation of structural member of electric power pylon

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Embodiment Construction

[0009] The automatic detection and alarm device for plastic deformation of transmission tower structural parts includes a magnetic flaw detection defect display board, electrode piece strings, film-coated semiconductor triodes, alarm lights, power supplies, and wires. The power supply and the film-attached semiconductor triode are connected to form a circuit, the alarm light is connected in parallel with the collector of the triode and the positive pole of the power supply, and the magnetic flaw detection defect display board is pasted on the structural parts prone to plastic deformation of the transmission tower, and the power supply is stably supplied by the power supply. When the structural parts of the iron tower do not undergo plastic deformation, the internal ferromagnetic powder of the magnetic flaw detection defect display board is evenly distributed at this time, and its resistance value is very large, so that the base and emitter of the power supply, magnetic flaw dete...

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Abstract

The invention discloses a device for automatically detecting and alarming the plastic deformation of a structural member of an electric power pylon and solves the problems that no device for automatically monitoring and alarming on line, which is simple, feasible and easy for maintenance, exists in the prior art. The device comprises a structural member of the electric power pylon and a magnetic flaw detection display panel (1); two rows of electrode plate strings are respectively and symmetrically arranged on two sides of the magnetic flaw detection display panel (1) in parallel; the magnetic flaw detection display panel (1) is attached to the surface of the structural member of the electric power pylon; a first row of electrode plate strings (2) are electrically connected with a base electrode of a plaster semiconductor triode (3); an emitting electrode of a plaster semiconductor triode (5) is electrically connected with a cathode of a power supply (4); an anode of the power supply (4) is electrically connected with a second row of electrode plate strings (3); one end of an alarming lamp (6) is electrically connected with a collector electrode of the plaster semiconductor triode(5); and the other end of the alarming lamp (6) is electrically connected with the anode of the power supply (4) together. By using the device, the detection efficiency of the plastic deformation of the electric power pylon is improved.

Description

technical field [0001] The invention relates to an on-site automatic detection and alarm device for the plastic deformation of iron tower structural parts of high-voltage transmission lines. Background technique [0002] As an important equipment for power transmission, transmission towers account for about 40% of the total line investment. The safety of transmission towers affects the safety of the entire power grid. When the iron tower is subjected to strong wind load, line icing, earthquake load and broken line load, large plastic deformation will occur in some parts of the iron tower. These large plastic deformations often cause damage to the iron tower or even collapse accidents, which bring great harm to the national economy and People's lives and property caused huge disasters. Therefore, it is urgent to develop a device that can automatically detect and alarm the plastic deformation of the iron tower in service now, so that the iron tower can be processed in time be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/24
Inventor 冀晋川黄纯德
Owner STATE GRID CORP OF CHINA
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