en.Wedoany.com Reported - On April 18th, the K1 large girder for the No. 2 boiler of the coal-fired power generation project at SPIC's Jieyang Qianzhan Power Plant was successfully hoisted into place. The installation of this critical component has laid a solid foundation for the subsequent hoisting of the boiler heating surfaces. It also marks that the steel structure installation for the No. 2 boiler has entered its final stage, and the project has officially moved into the crucial period of core equipment installation.
The boiler large girder, located at the top level of the boiler framework, is a key load-bearing structure. It is responsible for suspending the entire weight of the boiler body, heating surfaces, steam drum and related auxiliary equipment, steam-water pipelines, etc., and transferring vertical loads as well as horizontal forces such as wind loads and seismic loads to the steel frame columns and foundation. Furthermore, the large girder forms the top rigid load-bearing system, ensuring the overall structural rigidity and stability. It serves as the installation and positioning benchmark, controlling the boiler's elevation and center accuracy, provides reliable support points for the suspension system, and accommodates the thermal expansion and deformation of the boiler. It is the core load-bearing component ensuring the safe and stable operation of the boiler.
The K1 girder for the No. 2 boiler hoisted this time weighed approximately 31.047 tons and was hoisted using a single 140-ton tower crane. As one of the heaviest and most challenging operations in the project, the large girder hoisting received high attention from personnel at all levels of the project department. Preparations began as early as January, with meticulous planning covering aspects from girder lifting lug arrangement and transport route planning to hoisting details. Operations on site were strictly carried out according to technical plans and specifications. With the close collaboration of the project department leadership, various departments, and units, the girder was ultimately hoisted safely, precisely, and stably to its predetermined position.
The successful hoisting of the No. 2 boiler girder is a significant milestone in the boiler installation process. Moving forward, the project department will use this large girder hoisting as a benchmark, strictly controlling the quality and safety of the construction process, and making every effort to advance the project steadily towards its annual goals.
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