A Method for Transforming the Frame Type Foundation of a Turbogenerator Set

Abstract

The invention discloses a transforming method for frame-type foundation of a steam turbine generator unit. When the steam turbine generator unit needs to be replaced, a new steam turbine generator unit is fixed on a new reinforced concrete platen manufactured according to the load and the mounting requirements of the new steam turbine generator unit; a frame-type foundation of the original steam turbine generator unit is retained, and a spring vibration isolation system is arranged at the top of a longitudinal frame on both sides of an operating layer; the new reinforced concrete platen is stacked on the spring vibration isolation system, and the spring vibration isolation system isolates vibration transmitted by the new steam turbine generator unit through the new reinforced concrete platen, so that the intensity, the rigidity and the dynamic characteristic of the original frame-type foundation can meet the running requirement of the new steam turbine generator unit. According to the transforming method, when the steam turbine generator unit is replaced, the original foundation frame and the running layer platform do not need to be removed, and 'zero removal' transformation can be really realized; the transforming method has the advantages of greatly saving the engineering investment, reducing the construction engineering quantity, shortening the construction period, relieving the construction difficulty and the like.

Description

technical field [0001] The invention relates to a frame-type foundation transformation method of a steam turbine generator set, belonging to the technical field of foundation transformation of a steam turbine generator set. Background technique [0002] The steam turbine generator set is the core component of the thermal power plant. With the development of the economy, the improvement of production capacity and the need to improve the environment, if the original turbo-generator set cannot meet the current production needs, or when the original turbo-generator set needs to be replaced for some reason, the original equipment must be replaced Upgrade or replace. However, due to the inconsistency between the load action position of the new and old units, the arrangement of anchor bolts, and the size of the opening, the new unit cannot be installed on the original foundation, so the original foundation needs to be rebuilt. [0003] In the existing technology, the usual method...

AI Technical Summary

Problems solved by technology

Due to the large number of related equipment and pipelines such as condensers, air coolers, and connected main steam pipes of the original unit; the large cross-section size of the foundation columns and beams of the original steam turbine generator set, high concrete grades, and dense reinforcement; the site in the turbine room is narrow. Due to the inability to use blasting operations and large-scale demolition equipment; the difficulty of protecting the peripheral equipment and pipelines of the original unit, etc., the demolition scheme of all or part of the original foundation has disadvantages such as large amount of construction work, difficult construction, long construction period, and high cost.

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