A Hybrid Steel Structure Grid Cooling Tower

Abstract

The invention discloses a novel grid cooling tower with a crossed steel structure and relates to the grid cooling tower with the crossed steel structure, which is suitable for indirect type cooling, and belongs to the technical field of structural engineering. On the basis of a pure-steel double-curve-surface grid cooling tower, a central supporting truss flying column is additionally arranged; the central supporting truss flying column is connected with a peripheral grid shell by utilizing a pre-stress cable disc and a space inclined radiation pre-stress inhaul cable, so that a more stable space cable truss (composed of the cable disc, the fly column and the space inclined radiation pre-stress inhaul cable) and a steel grid shell crossed structure are formed. By adopting a multiple-side-force-resisting system, the side resisting rigidity and the bearing capability of the structure are remarkably improved and the utilization rate of materials is improved, so that structural design requirements of an ultra-large-size cooling tower can be met. The novel grid cooling tower adopts a steel cable and full-steel structure, and has the advantages of high production efficiency, high construction precision, short construction period, small influences caused by weather temperatures, low construction cost and the like.

Description

technical field [0001] The invention relates to a cooling tower of a power plant, in particular to a hybrid steel structure grid cooling tower suitable for indirect cooling, and belongs to the technical field of structural engineering. Background technique [0002] As a kind of efficient cooling equipment, the cooling tower uses its internal circulation system to achieve the purpose of recycling cooling water. It is widely used in thermal power plants, nuclear power plants and other thermal systems that require a large amount of cooling water. The "National Nuclear Power Development Special Plan (2005-2020)" approved by the State Council in October 2007 shows that my country's nuclear power development is in a new stage of rapid development, and the capacity of a single unit is increasing. Therefore, super large indirect cooling towers The design and construction of the tower has become a research hotspot and difficulty in the world. [0003] In recent years, traditional coo...

AI Technical Summary

Problems solved by technology

Compared with concrete cooling towers, steel structure cooling towers have been greatly improved in terms of structural materials, mechanical properties and construction methods, but their construction costs are closely related to their height and diameter. With the increase of tower height and tower body diameter , its lateral stiffness and bearing capacity decrease significantly, and the design economy becomes worse

Therefore, a single hyperboloid or cylindrical steel grid shell structure is difficult to meet the needs of super-large cooling towers, and it is urgent to find other all-steel cooling tower structural systems

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