Burning chamber cover cap and gas turbine with same

A combustion chamber and cap technology, applied in the field of combustion chamber caps, can solve problems such as cracks on the heating panel, large thermal stress, and reduced service life of the cap, achieving the effects of increasing service life and reducing thermal stress concentration

Pending Publication Date: 2021-11-19
CHINA UNITED GAS TURBINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the diffuser panel of the hood in the related art has a large temperature gradient in a local area, resulting in uneven te

Method used

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  • Burning chamber cover cap and gas turbine with same
  • Burning chamber cover cap and gas turbine with same
  • Burning chamber cover cap and gas turbine with same

Examples

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Embodiment Construction

[0030] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] The combustion chamber cover according to the embodiment of the present invention includes an outer tube 1 , a nozzle cover tube 2 , a diverging panel 3 and a fixing ring 4 .

[0032] There is an accommodation chamber 101 inside the outer cylinder 1 .

[0033] Specifically, such as figure 1 As shown, the outer contour of the outer cylinder 1 is cylindrical, and the left and right ends of the outer cylinder 1 have openings.

[0034] The nozzle cover cylinder 2 is arranged in the accommodation cavity 101 .

[0035] Specifically, such as figure 1 The shown nozzle cover cylinder 2 extends along the left and right direction. The outer contour of the nozzle ...

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PUM

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Abstract

The invention discloses a burning chamber cover cap and a gas turbine with the same. The burning chamber cover cap comprises an outer cylinder, a nozzle cover cylinder, a diffusion panel and a fixing ring, wherein a containing cavity is formed in the outer cylinder; the nozzle cover cylinder is arranged in the containing cavity; heat dissipation holes are formed in the diffusion panel; the nozzle cover cylinder is connected with the diffusion panel; one end of the nozzle cover cylinder penetrates through the heat dissipation holes so that one end of the nozzle cover cylinder can be communicated with the outside; the fixing ring is arranged in the containing cavity; and the fixing ring is arranged on the nozzle cover cylinder in a sleeving mode so that the nozzle sleeve can be fixed to the diffusion panel. According to the burning chamber cover cap, thermal stress concentration of the diffusion panel can be reduced, and the service life of the diffusion panel is prolonged.

Description

technical field [0001] The invention relates to the technical field of gas turbines, in particular to a combustion chamber cover and a gas turbine. Background technique [0002] A gas turbine mainly includes three major components: a compressor, a combustion chamber, and a turbine. The exhaust gas from the compressor flows to the combustion chamber, where it is mixed with fuel at the head of the combustion chamber for combustion, and the generated hot gas is sent to the turbine to perform work. The head of the combustion chamber is generally composed of nozzles, caps and other parts. The nozzles are arranged in the swirl channel of the cap. The fuel is premixed with the air in the swirl channel, and it expands at the outlet of the swirl channel. A recirculation zone is formed near the flame-stabilizing panel of the hood to carry out combustion and achieve flame stabilization. [0003] The hood provides a premix space for fuel and air to mix, while the hood's diverging panel...

Claims

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Application Information

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IPC IPC(8): F23R3/28
CPCF23R3/286
Inventor 耿杰峰刘小龙邵健杨旭李珊珊
Owner CHINA UNITED GAS TURBINE TECH CO LTD
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