自动化水泥杆移动检测平台的研制

Development of Automated Cement Rod Mobile Detection Platform

电杆是架空输配电线路中最常用的支撑结构之一,其长期工作在外,受土壤环境中水的侵蚀及各种外荷载和内应力的作用,容易产生裂缝。裂缝的存在将加重运行过程中电杆受有害物质侵蚀的程度和钢筋锈蚀的程度,降低电杆的承载能力,从而降低电杆的耐久性,增加电网的运行风险。随着国家对电力、铁路等基础设施的投入逐年加大,用电的基础设施正在逐步升级,很多特高压、超高压线路的投入使用带动了我国整体线路的升级改造过程。升级改造过程中无形中就提高了对电杆的质量(强度、抗裂度、挠度等)要求,同时让电杆的检验变得越来越频繁。常用电杆的检测平台有如下缺点:平台的基座体积较大不易移动,需要将电杆移动至基座位置进行实验,对场地要求较大而且转移线杆费时费力,对目前多类型的电杆抽样检验工作带来不便。

Pole is one of the most commonly used support structures in overhead transmission and distribution lines.However,its long-term work is outside,and it is prone to cracks due to the erosion of water in the soil environment and various external loads and internal stresses.The presence of cracks will aggravate the extent to which the poles are eroded by harmful substances during operation and the degree of corrosion of the steel bars,reducing the load carrying capacity of the poles,thereby reducing the durability of the poles and increasing the operational risk of the grid.The investment in infrastructure such as electric power and railway has increased year by year,and the infrastructure of China’s electricity consumption is gradually upgrading.Many UHV and UHV lines have been put into use to drive the upgrade process of China’s overall line.In the process of upgrading and upgrading,the quality(strength,crack resistance,deflection,etc.)requirements of the poles are improved invisibly,and the improvement of the quality requirements makes the inspection of the poles more and more frequent.The detection platform of commonly used poles has the following disadvantages:the base of the platform is large and difficult to move,and it is necessary to move the pole to the position of the base for experimentation,which requires a large amount of space and the transfer of the pole is time-consuming and laborious,and currently has many types of electricity.Rod sampling inspection work is inconvenient.