Ring type steel tube tower breeze vibration monitoring device and method

Abstract

The invention provides a ring type steel tube tower breeze vibration monitoring device and method. The device is installed on a steel tube tower rod piece. The device comprises an integrated circuit board (4) and a plurality of wind pressure sensors (3) connected with the integrated circuit board (4); the device is of a hollow cylindrical structure; a plurality of pressure measuring holes (2) areformed in the side surface of the cylindrical structure; the transverse section of the device is of a circular ring structure; the multiple wind pressure sensors (3) and the integrated circuit board (4) are arranged between the inner ring and the outer ring of the circular ring structure; each wind pressure sensor (3) is close to one pressure measuring hole (2); the integrated circuit board (4) isarranged close to the inner ring; and the integrated circuit board (4) is used for acquiring the data of the wind pressure sensors (3), processing the data and sending the data to a far-end server. The defects of breeze vibration monitoring device special for the current situation of a steel tube tower are made up. The ring type steel tube tower breeze vibration monitoring device is more miniaturized and lower in power consumption, can meet the requirement for long-term continuous observation and can synchronously measure aerodynamic force and vibration response.

Description

technical field [0001] The invention relates to the technical field of wind vibration monitoring and prevention of overhead transmission lines, in particular to a ring-type steel pipe tower breeze vibration monitoring device and method. Background technique [0002] If the vibration amplitude of the breeze exceeds the allowable value, it will cause fatigue damage to some line components, such as fatigue damage or wear of tower components. Especially for UHV transmission towers, as the height of the suspension point increases, the vibration energy of the wind on the steel pipe tower increases greatly, and the vibration intensity is far more severe than that of ordinary lines. Due to the high-frequency and small-amplitude vibration characteristics of breeze vibration, the damage is concealed to a certain extent, and sometimes it is difficult to find it from the outside of the structure, which brings certain difficulties to the operation and maintenance of the line. Usually, th...

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Problems solved by technology

However, the existing wind vibration monitoring devices still have the following limitations: (1) The monitoring objects are mainly ground wires, and there is a lack of monitoring devices for the wind vibration of transmission towers; (2) The monitoring variables are based on acceleration, displacement and other responses. (3) The monitoring time length of transmission tower breeze vibration is mainly short-term monitoring; (4) Part of the wind field and vibration response are monitored at the same time, and the wind field monitoring adopts anemometer and breeze vibration Separate monitoring device, each monitoring variable adopts separate monitoring equipment, the power consumption of the monitoring system is large, and the reliability of synchronous monitoring is insufficient

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