Double-curve cooling tower climbing ladder

Abstract

The invention provides a double-curve cooling tower climbing ladder. The double-curve cooling tower climbing ladder comprises a tower barrel inner climbing ladder and a tower barrel outer climbing ladder, the tower barrel inner climbing ladder is arranged below the elevation of a throat part of a cooling tower, the tower barrel outer climbing ladder is arranged above the elevation of the throat part of the cooling tower, a half oval manhole is formed in the elevation position of the throat part of the cooling tower, the climbing ladder is composed of a plurality of Z-shaped climbing ladder bodies, and each climbing ladder body comprises a climbing ladder platform, a climbing ladder handrail, a climbing ladder pedal and a climbing ladder protecting cage. The tower barrel inner climbing ladder is adopted below the elevation of the throat part of the cooling tower, the problem of overhanging of the climbing ladder outside the tower wall is solved, the construction difficulty is reduced, as for the climbing ladder section in a tower barrel, the influence of the wind load is eliminated, and safe reliability of the climbing ladder is increased; and the tower barrel inner climbing ladderand the tower barrel outer climbing ladder can be constructed simultaneously, the construction progress is speeded up, and the construction time is saved.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a hyperbolic cooling tower ladder. Background technique [0002] In the construction of thermal power plants or nuclear power plants, circulating water natural draft cooling towers are the most common structures. The height of the cooling tower is generally high, and the height of the large cooling tower is generally about 150m. At present, the height of the highest cooling tower in the world is 210m. If you want to overhaul the top of the cooling tower, you have to go through the maintenance ladder on the wall of the tower. The hyperbolic cooling tower is a special structure, which is very different from general industrial buildings. The hyperbolic cooling tower is a thin-walled structure with the smallest diameter at the throat. From the bottom to the throat, the diameter of the tower gradually increases, and from the throat to the top, the diameter of the t...

AI Technical Summary

Problems solved by technology

During the construction of this kind of ladder, the tube wall above the throat hangs upside down, which is inconvenient for construction; the straight ladder with a cage is relatively simple, and maintenance personnel need to use all four limbs to climb upwards, which is a very difficult physical activity; the height of the ladder is too high It is a great test for the physical strength of the maintenance personnel; as the saying goes, "it is easy to go up the mountain, but it is difficult to go down the mountain". This is especially true for straight ladders. Potential safety hazard, you must always pay attention to your feet to prevent your feet from stepping into the air

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