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Flexible supporting structure

A technology of supporting structure and supporting cylinder, applied in the direction of machine/engine, mechanical equipment, engine components, etc., can solve the problems of difficult disassembly of separate cylinders and flexible supports, disturbance of high-temperature gas flow, and large local stress due to heating, etc., to avoid problems such as Air leakage risk, thermal stress reduction, good use effect

Active Publication Date: 2020-11-24
浙江燃创透平机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problems to be solved by the present invention are: to solve the problem of direct fixing and heating local stress existing in the support structure of the flow channel in the traditional exhaust cylinder and the cylinder block; Difficult to disassemble and air leakage

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0038] figure 2 As shown, a flexible support structure 7 is used to support and connect the gas turbine exhaust cylinder inner flow passage 12 and the outer cylinder block 1, including a mounting plate 71, an adjusting bolt 72, a gasket 73 and an adjustable support tube 74, and the mounting plate 71 Installed on the outer cylinder body 1 through threaded connection, the adjustable support tube 74 is installed on the outer plate 2 of the inner flow channel 12 by welding, the sealing gasket 73 is arranged between the mounting plate 71 and the adjustable support tube 74, and the adjusting bolt 72 passes through the mounting plate 71 and the gasket 73 and is connected with the adjustable support tube 74;

[0039] The adjustable support tube 74 includes a shell 743, a spring 742 and a connecting plate 741. The shell 743 includes an upper shell 7431 and a lower shell 7432. The upper shell 7431 and the lower shell 7432 are welded and fixed to form a hollow cavity structure. The spri...

Embodiment 2

[0044] figure 1 and image 3As shown, an exhaust cylinder is used for a gas turbine, including an outer cylinder body 1 and an inner flow channel 12, the inner flow channel 12 includes an outer plate 2, an inner plate 3 and a support cylinder 5, and the outer cylinder body 1 and the inner flow channel 12 The outer panels 2 are connected by a flexible support structure 7 .

[0045] It also includes a support rod 6 and a support seat 4 , one end of the support rod 6 is welded and fixed to the support seat 4 , and the other end passes through the snap ring 14 and is fixedly connected to the outer cylinder body 1 .

[0046] The bottom of the shell 743 of the adjustable support tube 74 is set as a slope, the slope slope is the same as the slope of the outer plate 2, and the extension line of the center line of the flexible support structure 7 coincides with the center of gravity of the inner runner 12 in the exhaust cylinder 1.

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Abstract

The invention discloses a flexible supporting structure which is used for supporting connection of an outer cylinder body and an inner flow passage of an exhaust cylinder of a gas turbine. The flexible supporting structure comprises a mounting plate, an adjusting bolt, a sealing gasket and an adjustable support cylinder, wherein the mounting plate is mounted on the outer cylinder body, the adjustable support cylinder is mounted on the inner flow passage, the sealing gasket is arranged between the mounting plate and the adjustable support cylinder, and the adjusting bolt penetrates through themounting plate and the sealing gasket to be connected with the adjustable support cylinder; the adjustable support cylinder comprises a shell, a spring and a connecting plate, wherein the spring and the connecting plate are arranged inside the shell, the lower end of the spring is fixedly connected with the shell, the upper end of the spring is fixedly connected with the connecting plate, the shell is fixed on the inner flow passage, the connecting plate is provided with a threaded hole, and the adjusting bolt is connected with the connecting plate through the threaded hole and used for adjusting the tension of the spring. By adopting the flexible supporting structure, the thermal deformation stress of the inner flow passage can be ensured to be small, machining and mounting are convenient, and the outer cylinder body can be ensured not to be separated so as to reduce the air leakage risk.

Description

technical field [0001] The invention relates to the technical field of exhaust cylinders of gas turbines, in particular to a flexible support structure used for connecting an inner flow channel of an exhaust cylinder of a gas turbine to an outer cylinder body. Background technique [0002] A gas turbine is mainly composed of three major components: a compressor, a combustor, and a turbine. The air enters the compressor part from the intake system, and the high-pressure air flowing through the compressor flows into the combustor for full combustion, and then passes through the turbine part to complete energy conversion, and the high-temperature gas flows through the exhaust cylinder part to the subsequent parts (in the process of raising the load of small and medium-sized gas turbines) Gas temperature is in the range of 200°C-600°C). In the current design of small and medium-sized gas turbines, the support structure of the exhaust cylinder inner runner and the cylinder body ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/28F01D25/04F01D25/30
CPCF01D25/28F01D25/04F01D25/30
Inventor 郑健生詹长庚徐希亮谢健方寅谷庭伟姚世传陈列隋永枫
Owner 浙江燃创透平机械有限公司
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