Water pressure blasting device of angle steel structure for power transmission tower

Abstract

The invention discloses a water pressure blasting device of an angle steel structure for a power transmission tower. The water pressure blasting device comprises first angle steel, the first angle steel and the bottom of a cylindrical structure composed of to-be-blasted angle steel are sealed through a steel plate, water bags and blasting cartridges are alternately arranged in the cylindrical structure in sequence, and the blasting cartridges are led out of the cylindrical structure through nonel detonators. The top of the cylindrical structure is sealed through second angle steel, and the second angle steel is fixed to the first angle steel through a fixing device. According to the water pressure blasting device of the angle steel structure for the power transmission tower, by welding thecylindrical structure to the to-be-blasted angle steel, the two ends of the cylindrical structure are sealed through the steel plate and the angle steel, a close space is formed, the water bags and the blasting cartridges are placed in the closed space, by using the incompressibility of liquid water, the blasting destroying degree is greatly improved, and the blasting effect can be ensured. The water is sub-packaged in bags so that angle steel in various directions can be blasted; the cylindrical structure is sealed with the second angle steel, installation is simple, and the efficiency is high.

Description

technical field [0001] The invention relates to a hydraulic blasting device for an angle steel structure transmission tower, which belongs to the field of blasting. Background technique [0002] According to the plan, my country will build dozens of UHV DC projects in the next 10-20 years, and gradually form a UHV AC-DC hybrid power grid, which will supply power to the central and eastern load centers through UHV DC and AC systems. In order to alleviate the problems faced by the multi-infeed DC system, such as insufficient reactive power support capacity of the receiving end grid, and the dense sending system causing the short-circuit current to cross the line, UHV layered DC has become a new DC access mode. Compared with conventional UHV DC, the main difference is that the high-end converter transformer and low-end converter transformer on the inverter side are respectively connected to 500kV and 1000kV power grids, and the AC filter and reactive power compensation device a...

AI Technical Summary

Problems solved by technology

[0003] However, when constructing UHV transmission towers, most of the old iron towers are on the same path as the newly built new iron towers, and the original line ground wires and iron towers must be removed before construction can begin.

The dismantling of angle steel laps in our country is still in its infancy and needs to be dismantled by workers, which is labor-intensive, low-efficiency, and highly dangerous.

In the angle steel truss, it is impossible to blast through the hole, only exposed blasting, a large part of the energy is dissipated into the air, and the blasting effect is poor

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