Turbine rotor welding joint detection system

Abstract

The invention relates to the technical field of detection equipment, and in particular, relates to a turbine rotor welding joint detection system at least including a scanning robot for clamping a detection probe to move along the surface of a welded joint. The scanning robot includes a machine base which can walk along the surface of the welding joint, a clamping assembly mounted in the middle ofthe machine base and used for clamping the detection probe, a first driving assembly mounted on the machine seat and used for driving the clamping assembly to adjust relative to the position of the machine seat, a driving wheel mounted at the bottom of the machine seat, a second driving assembly for driving the driving wheel to rotate, a controller in communication connection with the first driving assembly and the second driving assembly and for controlling the work states of the first driving assembly and the second driving assembly, and a power device for providing power for the first driving assembly, the second driving assembly and the controller. The detection system can conveniently detect the welding joint, so as to ensure stable and highly efficient operation of a turbine unit.

Description

technical field [0001] The invention relates to the technical field of detection equipment, in particular to a detection system for a welded joint of a steam turbine rotor. Background technique [0002] Welded rotors have many advantages such as compact structure, high strength, convenient processing, reasonable material utilization and good rotor rigidity. High requirements and weak performance areas of welded joints, etc. Due to the existence of the weak zone, it is very important to regularly check the quality and performance of the welded joints in order to ensure the safe operation of the rotor. [0003] As an important part of the power station, the safety and reliability of the steam turbine directly affects the safe and economical operation of the power station. With the development of steam turbine technology, the application of welded rotors of steam turbines is becoming more and more extensive. It is necessary to develop reliable solutions to ensure the safe, st...

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Problems solved by technology

[0002] Welded rotors have many advantages such as compact structure, high strength, convenient processing, reasonable material utilization and good rotor rigidity. High requirements and weak performance areas of welded joints, etc.

[0005] However, during the operation stage of the steam turbine rotor, all the blades have been installed in place. Due to space constraints, it is difficult to directly inspect many parts of the welded joints of the rotor or manually place the probe at the designated position, and the working conditions of the steam turbine after operation The stress distribution of the welded joints has changed, and the defects produced are also very different from those in the manufacturing stage. Therefore, the inspection process in the manufacturing stage is no longer applicable in the operation stage of the steam turbine unit. Therefore, it is necessary to develop a new one suitable for the welded joints of the steam turbine rotor. Detection device

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