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A steam turbine diaphragm and its processing technology

A processing technology and steam turbine technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve problems such as large deformation and large dislocation of facets, and achieve the effect of preventing deformation, reducing welding deformation, and overcoming difficult separation.

Active Publication Date: 2019-12-06
北京北重汽轮电机有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a steam turbine diaphragm and its processing technology to solve the problems of large deformation caused by the above-mentioned semicircle processing technology and large dislocation of the facets in the upper and lower semicircle diaphragms

Method used

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  • A steam turbine diaphragm and its processing technology
  • A steam turbine diaphragm and its processing technology
  • A steam turbine diaphragm and its processing technology

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Embodiment Construction

[0015] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known components, components and structures have not been described in detail so as not to obscure the present invention.

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] Such as image 3 with 4 Shown is a schematic structural view of a separator according to some illustrative embodiments.

[0018] The steam turbine clapboard in the embodiment comprises a semicircle clapboard (the whole steam turbine clapboard is formed by two semicircles), and the both sides of the blade of the semicircle clapboard are the inner shroud band and the peripheral band respectively; The other end passes through ...

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Abstract

The invention discloses a partition of a steam turbine and a processing technology thereof, and belongs to the field of manufacturing of partitions of steam turbines. The partition of the steam turbine comprises semicircular partitions, wherein the two sides of blades of the semicircular partitions are inner shrouds and outer shrouds respectively; the height of the single blade positioned on a midsplit surface is larger than the height of the midsplit surface; U-shaped notches are formed in the connection parts of the single blade and the corresponding inner shroud and the single blade and the corresponding outer shroud; and the height of the U-shaped notches exceeds the height of the midsplit surface. According to the processing technology of the partition of the steam turbine, full circle processing and full circle welding methods are adopted, and the U-shaped notches are cut in to-be-cut positions of the single blade on the midsplit surface in advance, so that the problem that during full circle processing of the partition, the midsplit surface is not liable to separate is overcome, the welding deformation is reduced, and the processing accuracy is improved.

Description

technical field [0001] The invention relates to the field of steam turbine diaphragm manufacturing, in particular to a steam turbine diaphragm and its processing technology. Background technique [0002] In order to facilitate the installation of the rotor and find the center, etc., it is required that the upper and lower halves of the diaphragm must be installed separately. The main components of the diaphragm of the steam turbine include the inner and outer rings of the diaphragm, the inner and outer belts, the blades and the diaphragm body, such as figure 1 with 2 As shown, the above-mentioned parts are two semicircles. Therefore, in the prior art, the processing technology of the baffle adopts to process the semicircular baffle first, and then arranges the tie bars between the two semicircular baffles to form a full circle welding; the specific process is: the first step is to combine the inner ring of the baffle with the Cascade welding (the cascade is the assembly of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/24B23P15/00
Inventor 熊冬波吴大佐朱和全张敏徐鹏威
Owner 北京北重汽轮电机有限责任公司
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