Boiler tube panel butt welding machine

Abstract

The invention discloses a boiler tube panel butt welding machine. The machine is composed of a conveying mechanism (1), a rotation fixing mechanism (2), a rotation casing tube assembly (3), a welding main support (4), a welding mechanism (5), and a welding height detecting mechanism (6). The conveying mechanism (1) is arranged on the two sides of the welding main support (4) in a bilateral symmetry manner, the rotation fixing mechanism (2) is arranged on the outmost side of the upper portion of the conveying mechanism (1), the rotation casing tube assembly (3) is fixedly arranged above the conveying mechanism (1) and is close to the welding main support (4), the welding mechanism (5) is fixed above the welding main support (4), and the welding height detecting mechanism (6) is fixed to one side of the welding mechanism (5). Through the rotation fixing mechanism and a rotation casing tube, a welding tube can be stably and circumferentially welded, through the welding height detection mechanism, the circumference welding height of the welding point can be detected, and welding work efficiency and the inspection efficiency can be improved.

Description

technical field [0001] The invention relates to the field of thermoelectric boiler and accessory processing, in particular to a boiler tube-panel butt welding machine. Background technique [0002] With less and less international energy sources and the impact of energy consumption on the environment, people's requirements for thermal efficiency, low carbon emissions, and harmful substance control of coal power projects are also changing rapidly; for this reason, the current technical performance and parameters of coal power Fundamental changes have also taken place. The requirements for large units, large capacity, high performance, high efficiency, and low emissions have forced coal-fired units to continuously update the indicators of high parameters and low emissions, especially for high-grade materials such as SA213-T91 in boilers. It has been widely used in boiler heating surface tube screens, but high-alloy steels such as t91 have poor weldability, high alloy elements,...

AI Technical Summary

Problems solved by technology

[0002] With less and less international energy sources and the impact of energy consumption on the environment, people's requirements for thermal efficiency, low carbon emissions, and harmful substance control of coal power projects are also changing rapidly; for this reason, the current technical performance and parameters of coal power Fundamental changes have also taken place. The requirements for large units, large capacity, high performance, high efficiency, and low emissions have forced coal-fired units to continuously update the indicators of high parameters and low emissions, especially for high-grade materials such as SA213-T91 in boilers. It has been widely used in boiler heating surface tube screens, but high-alloy steels such as t91 have poor weldability, high alloy elements, and strong carbonization elements. If the preheating before welding is not good, hot cracks tend to appear after welding, and In the process of mechanical welding, continuous multi-pass welding is adopted, and the interlayer temperature is prone to be too high, the welding performance of the material is poor, the temperature sensitivity is strong, and cracks are prone to occur after welding.

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