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Block type turbine outer ring connection structure used for gas turbine for ship

A connection structure, gas turbine technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve the problems of incongruity between the thermal deformation of the outer ring of the turbine and the casing, difficult to replace the outer ring of the turbine, complicated connection structure, etc. The effect of contact, simple structure and simplified maintenance steps

Pending Publication Date: 2019-05-14
中国船舶重工集团公司第七0三研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that the existing marine gas turbine turbine outer ring and casing thermal deformation are incompatible, the connection structure is complicated, the damaged turbine outer ring is not easy to replace, and the reliability is low, the present invention further provides a block for marine gas turbine type turbine outer ring connection structure

Method used

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  • Block type turbine outer ring connection structure used for gas turbine for ship
  • Block type turbine outer ring connection structure used for gas turbine for ship
  • Block type turbine outer ring connection structure used for gas turbine for ship

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specific Embodiment approach 1

[0030] Specific implementation mode one: combine Figure 1 to Figure 4 Describe this embodiment, a block type turbine outer ring connection structure for marine gas turbines in this embodiment, the block type turbine outer ring connection structure includes casing connection ring 3, N turbine outer ring units and 2N stop pins 6, the casing connecting ring 3 is an integral ring structure, and N turbine outer ring units are evenly distributed on the outer circumference of the casing connecting ring 3, and each turbine outer ring unit is connected to the casing through two stop pins 6 Connecting ring 3 is fixedly connected,

[0031] Each turbine outer ring unit includes a fan-shaped turbine outer ring block 1, a fan-shaped outer ring connecting block 2, a radial pin 4 and an impact plate 5, and N fan-shaped turbine outer ring blocks 1 correspond to N fan-shaped outer ring connecting blocks 2 one-to-one It is set that all the fan-shaped turbine outer ring blocks 1 form a turbine ...

specific Embodiment approach 2

[0037] Specific implementation mode two: combination figure 2 and Figure 4 Describe this embodiment, the rear end of the fan-shaped turbine outer ring block 1 of this embodiment, the fourth hook 2-4 at the rear end of the fan-shaped outer ring connection block 2, the rear part of the fan-shaped outer ring connection block 2 and the impact plate 5 Both are provided with notches for accommodating radial pins 4 . In this way, the outer ring of the turbine is connected to the turbine connector through the hook structure, and is positioned circumferentially by the radial pins 4 . Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0038] Specific implementation mode three: combination image 3 This embodiment will be described. The impact plate 5 of this embodiment is provided with several impact holes. In this way, several impingement holes on the impingement plate 5 are used to cool the inner wall of the fan-shaped turbine outer ring block 1 . Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a block type turbine outer ring connection structure used for a gas turbine for a ship and relates to the field of gas turbine equipment for ships. The block type turbine outerring connection structure used for the gas turbine for the ship solves the problems that an existing turbine outer ring of the gas turbine for the ship and a machine case are inharmonious in thermaldeformation, a connection structure is complicated, a damaged turbine outer ring is difficult to replace, and reliability is low. A machine case connection ring of the block type turbine outer ring connection structure used for the gas turbine for the ship is of an overall type ring-shaped structure; N turbine outer ring units are uniformly arranged on the outer circumference of the machine case connection ring; each turbine outer ring unit is fixedly connected with the machine case connection ring through stop pins, and each turbine outer ring unit comprises a sector-shaped turbine outer ringblock, a sector-shaped outer ring connection block, a radial pin and an impacting plate; each sector-shaped turbine outer ring block is connected with the corresponding sector-shaped outer ring connection block through a hook and a ring groove which are matched with each other; the impacting plates are arranged between the sector-shaped turbine outer ring blocks and the sector-shaped outer ring connection blocks, and are fixedly connected with the sector-shaped turbine outer ring blocks and the sector-shaped outer ring connection blocks through the radial pins; and each sector-shaped outer ring connection block is connected with the machine case connection ring through a hook and a ring groove which are matched with each other.

Description

technical field [0001] The invention relates to the field of marine gas turbine equipment, in particular to a block-type turbine outer ring connection structure for a marine gas turbine. Background technique [0002] Marine gas turbines are complex and sophisticated high-tech products that work in harsh environments of high temperature, high pressure, high speed and high salt spray corrosion. At present, the temperature in front of the turbine of marine gas turbines has reached 1500-1800K, which makes the turbine guide vanes, turbine outer rings, turbine blades and other components that are directly in contact with high-temperature and high-pressure gas become one of the parts with the worst working conditions in the engine. Turbine is the main part of marine gas turbine, and its performance directly affects the working efficiency of the engine. The turbine outer ring is an important part of the turbine components, its main function is to cooperate well with the turbine bla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D9/00F01D25/24
Inventor 霍玉鑫姜爽李国强牛夕莹李涛刘宇游洋林洪飞徐波李宗全
Owner 中国船舶重工集团公司第七0三研究所
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