Unloading and locating method for ultra-high-voltage transformer

Abstract

The invention relates to an unloading and locating technology for large electrical equipment, in particular to an unloading and locating method for an ultra-high-voltage transformer. According to the method, a slipper pillar shaped like a Chinese character tian is used as a support for transfer, the transformer is firstly transferred onto the slipper pillar from a flat car by jacking four ends of the transformer by a hydraulic oil pump, then the ground clearance of the transformer is adjusted, and finally, the transformer is moved to an specified position through steel rails. According to the unloading and locating method for the ultra-high-voltage transformer, in combination of accurate operation data, the slipper pillar shaped like a Chinese character tian is stable, safe and reliable, and positions of a hoisting point and jacking points are selected reasonably in an unloading and locating process, so that equipment is not deformed under stress; when the transformer is hoisted, underlay is used for protection timely, moving or inclination of the transformer due to a crane fault is prevented, and the equipment safety is guaranteed; and the transformer maintains stable without shaking or bumping, the requirement that three-dimensional impact on the transformer is not larger than 3 g is met, the process is simple, time and labor are saved, and the method is convenient and simple.

Description

technical field [0001] The invention relates to a technique for unloading and placing a large electric equipment body, in particular to a method for unloading and placing a UHV transformer body. Background technique [0002] In electric power construction, the 1000kV transformer has the characteristics of large capacity, large volume, and difficulty in transportation and unloading. Its weight generally exceeds 350 tons, and its volume is more than 115cm×51cm×49.70cm, and the unloading must meet relatively strict impact Requirements and migration standards, that is, in the upper and lower pier projects, strictly control each operation link, so that the three-dimensional impact force on the transformer is not greater than 3g during the whole process, and the vertical and horizontal centerlines of the transformer are aligned with the designated positions, and the error is within the specified range . [0003] In the prior art, the traditional crane method is usually used to un...

AI Technical Summary

Problems solved by technology

[0008] However, the above-mentioned traditional crane placement is difficult to meet the impact requirements and migration standards of UHV transformer unloading and placement. Before unloading and placement, the placement plan must be carefully prepared, including the selection of transportation equipment, construction organization plan, and construction technology. Compilation and review of schemes and safety construction schemes are complex, involving many personnel and equipment, technically difficult, time-consuming and labor-intensive