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Annealing system and method for welded rotors

A welding rotor and annealing technology, which is applied in the direction of furnace types, furnaces, heat treatment equipment, etc., can solve the problems of large dimensions, difficulty in ensuring heating quality, and difficulty in ensuring the effect of stress relief, etc., so as to improve the annealing effect and reduce local internal stress. Effect

Active Publication Date: 2020-04-17
SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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  • Abstract
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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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  • Annealing system and method for welded rotors
  • Annealing system and method for welded rotors
  • Annealing system and method for welded rotors

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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 invention puts forward an annealing system and method for welded rotors. The annealing system comprises multiple heating devices and multiple temperature measuring devices; the multiple heating devices are arranged on multiple heating zones of the welded rotors; the multiple temperature measuring devices are arranged on the multiple heating zones of the welded rotors and are connected with themultiple heating devices; and the annealing temperatures of the multiple heating zones are different. By the aid of the annealing system for the welded rotors, manual operations can be reduced, 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 Applications(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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