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An annealing system and annealing method for a welded rotor

A welding rotor and annealing technology, applied in the furnace type, heat treatment process control, furnace and other directions, can solve the problems of large size, difficult to ensure heating quality, difficult to ensure the stress relief effect, etc., to reduce local internal stress and improve annealing effect. Effect

Active Publication Date: 2021-11-19
SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the large size of the welded rotor, the power of hundreds of kilowatts is required. In the prior art, dozens of porcelain-lined heating plates are usually laid and fixed for heating, so it is difficult to ensure the heating quality and stress relief. Effect

Method used

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  • An annealing system and annealing method for a welded rotor
  • An annealing system and annealing method for a welded rotor
  • An annealing system and annealing method for a welded rotor

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Embodiment Construction

[0035] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0036] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual impleme...

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Abstract

The present invention proposes an annealing system and annealing method for a welded rotor, comprising: a plurality of heating devices arranged on a plurality of heating regions of the welded rotor; a plurality of temperature measuring devices arranged in a plurality of heating regions of the welded rotor The plurality of heating devices are connected to the region; wherein, the annealing temperatures of the plurality of heating regions are different. The annealing system for welded rotors proposed by the invention can reduce manual operations, and the heating quality is stable.

Description

technical field [0001] The invention relates to the technical field of heat treatment of metal materials, in particular to an annealing system and an annealing method for a welded rotor. Background technique [0002] With the development of the economy, the steam turbine unit continues to develop in the direction of high parameters and large capacity, which puts forward new requirements for the performance of the welded rotor. For steam turbines, the rotor is the main component of the steam turbine, and the operation of the rotor directly affects the operating efficiency of the steam turbine and the safety of the unit. In the manufacturing process of the rotor, some parts of the rotor need to be welded. Usually, the weldability of the rotor material is not very good, so the stress relief treatment must be carried out in time without cooling after welding. [0003] Due to the large size of the welded rotor, the power of hundreds of kilowatts is required. In the prior art, do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/50C21D1/26C21D11/00
CPCC21D1/26C21D9/50C21D11/00
Inventor 朱建娇宋帆丁玉明丁丽锋刘霞
Owner SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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