Tower tilt inspection and correction device for transmission lines

Abstract

The invention relates to a power transmission line tower inclination detection and correction system. Lifting cylinders are arranged in concrete tower footings in advance, a reflector is arranged between the concrete tower footings, a signal feedback board is arranged on the upper part of a tower, a laser source is fixed at the center of the signal feedback board, and the laser beam emitted by the laser source is reflected by the reflector and then located on the signal feedback board. Because the lifting devices and the simple and sensitive detection system are arranged in advance, the inclination of the tower footings can be discovered in time and an effective measure can be adopted to lift the tower footings in time, and thereby the severe inclination of the tower footings is prevented. Because the laser source is adopted to detect and monitor the inclination of the tower footings, the detection system is simple, detection is sensitive, the installation and use costs are low, and moreover, the detection system cannot be easily damaged. In particular, after the tower footings incline, the cost of adopting the hydraulic lifting cylinders to carry out lifting is low, construction can be carried out by only two or three people, the difficulty and danger of correcting operation are greatly decreased, the cost of installing the hydraulic lifting cylinders in advance is low, and moreover, the inherent performance of the tower footings is not affected. The live-wire lifting operation can be carried out, so the loss in production and life which is caused by power-off operation to the society is thoroughly prevented. The power transmission line tower inclination detection and correction system has an excellent application effect.

Description

technical field [0001] The invention relates to a device for detecting and rectifying the inclination of an iron tower of a transmission line, in particular to a device for detecting and correcting the inclination of an iron tower of a transmission line using an optical path detection and a hydraulic system for rectifying the deviation. Background technique [0002] At present, many transmission line towers in operation in our country are located in gobs, and they will tilt during their long-term operation. In severe cases, tower collapse accidents may even occur, which has caused serious hidden dangers to the safe and stable operation of the power grid. Usually, the inclination observation of the iron tower adopts instrument monitoring, electronic equipment monitoring based on sensor monitoring components, etc. The former has a large workload, and it is impossible to regularly detect all the iron towers in the subsidence area, especially the early inclination cannot be detec...

AI Technical Summary

Problems solved by technology

[0002] At present, many transmission line towers in operation in my country are located in gobs, and they will tilt during their long-term operation. In severe cases, tower collapse accidents may even occur, which has caused serious hidden dangers to the safe and stable operation of the power grid.

Usually, the inclination observation of the iron tower adopts instrument monitoring, electronic equipment monitoring based on sensor monitoring components, etc. The former has a large workload, and it is impossible to conduct regular inspections on all iron towers in the subsidence area, especially the early inclination cannot be detected in time

The latter has a higher cost, especially when placed in a field environment, electronic components are easily damaged or invalidated, etc.

In addition, when the iron tower is found to be tilted, if it is slightly tilted, the tilted iron tower will be protected by cable protection, and monitoring equipment will be installed for 24-hour monitoring; if the tilt is serious, physical correction is required, that is, power failure, digging out the tower foot, and straightening the tower , using this method must work after a power outage, which will seriously affect the stability of power supply, and the construction is complicated, requiring more manpower and material resources. The "transmission line tower tilt correction device" provided by Chinese patent CN201933834U, and the "power transmission tower tilt correction device" disclosed in Chinese patent 201220056266 An iron tower inclination adjustment device", which adopts the method of fixing the auxiliary steel plate at the foot of the tower, and then lifting it with jacks on both sides at the same time to correct the deviation

This method of deviation correction has complex operation steps, poor stability of the lifting jack, and prone to safety hazards or accidents such as tilting of one side of the jack.

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