Combustor and gas turbine with same

一种燃烧器、燃烧区域的技术，应用在燃烧设备、燃烧室、燃烧方法等方向，能够解决制造成本增大、大空间、维护作业繁杂等问题，达到提高维护性、削减空间的效果

Active Publication Date: 2011-08-24
MITSUBISHI POWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, in the method disclosed in Patent Document 1, a large space is required outside the burner in order to install the bypass flow path and the silencer.
Furthermore, in the method shown in Patent Document 2, needless to say, the silencer extending in the radial direction, even the silencer extending in the axial direction is bent in the radial direction in order to ensure the volume (full length) of the resonance space. , so a large space is required outside the burner in order to install the bypass flow path and the silencer
[0015] In this way, since a large cabin space is required, it may not be possible to transport a gas turbine with an enlarged casing, for example.
Increase in manufacturing cost including this transportation cost
[0016] The burner requires regular maintenance, but in Patent Document 1, the bypass flow path is not removed, and in Patent Document 2, the burner cannot be removed without removing the muffler, so the maintenance work is complicated

Method used

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  • Combustor and gas turbine with same
  • Combustor and gas turbine with same
  • Combustor and gas turbine with same

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0054] refer to Figure 1 to Figure 4 , the gas turbine 1 according to the first embodiment of the present invention will be described.

[0055] figure 1 It is a schematic diagram explaining the structure of the gas turbine 1 of this embodiment. figure 2 is description figure 1 A schematic diagram of the outline of the structure of the burner 5.

[0056] Such as figure 1 and figure 2As shown, the gas turbine 1 includes a compressor 3 , a combustor 5 , a turbine unit (turbine) 7 , a rotating shaft 9 , and a housing 11 for holding them at predetermined positions inside.

[0057] The compressor 3 takes in and compresses external air, that is, the atmosphere, and supplies the compressed air to the combustor 5 .

[0058] In addition, as the compressor 3, a well-known structure can be used, Especially the structure is not limited.

[0059] Such as figure 1 As shown, the combustor 5 mixes the air compressed by the compressor 3 and the fuel supplied from the outside, and com...

no. 2 approach 〕

[0126] Next, refer to Figure 6 and Figure 7 A second embodiment of the present invention will be described.

[0127] The basic structure of the gas turbine of this embodiment is the same as that of the first embodiment, but the structure of the damping device 21 is different from the first embodiment. Therefore, in the present embodiment, the different attenuating devices 21 will be mainly described, and redundant descriptions of other components and the like will be omitted.

[0128] Figure 6 It is a cross-sectional view of main parts illustrating the structure of the damper 21 in the combustor 5 of the gas turbine 1 according to the present embodiment. Figure 7 yes Figure 6 The Z-Z section view.

[0129] In addition, the same code|symbol is attached|subjected to the same component as 1st Embodiment, and the description is abbreviate|omitted.

[0130] In the present embodiment, the muffler cover (acoustic portion) 53 is a box having a substantially rectangular cros...

no. 3 approach 〕

[0148] Next, refer to Figure 8 and Figure 9 A third embodiment of the present invention will be described.

[0149] The basic structure of the gas turbine of this embodiment is the same as that of the first embodiment, but the structure of the damping device 21 is different from the first embodiment. Therefore, in this embodiment, different attenuation devices 21 will be mainly described, and redundant descriptions of other components and the like will be omitted.

[0150] Figure 8 It is a cross-sectional view of main parts illustrating the structure of the damping device 21 of the combustor 5 of the gas turbine 1 according to the present embodiment. Figure 9 yes Figure 8 The W-W section view.

[0151] In addition, the same code|symbol is attached|subjected to the same component as 1st Embodiment, and the description is abbreviate|omitted.

[0152] The muffler 31 includes a muffler cover (acoustic part) 61 and an opening 63 provided in the liner cover 35 .

[0153]...

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PUM

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Abstract

A combustor which is configured in such a manner that a space for mounting an acoustic damper is reduced, which is reduced in size, and which has improved maintainability. A combustor (5) is provided with a combustion tube (19) which has a combustion region (23) formed therein, and also with an acoustic damper (31) which has a damper cover having an acoustic damper resonance space communicating with the combustion region (23). The damper cover is mounted so as to extend along the combustion tube (19) in the direction crossing the axis direction (L) of the combustion tube (19).

Description

technical field [0001] The present invention relates to a combustor and a gas turbine equipped with the same. Background technique [0002] A gas turbine has a compressor, a combustor, and a turbine. The compressor takes in air, compresses it to high pressure, and sends the high-pressure air to the combustor. [0003] In the combustor, the fuel is blown against the high-pressure air to burn the fuel. The high-temperature combustion gas generated by burning the fuel is sent to the turbine, and the high-temperature combustion gas drives the turbine. [0004] The turbine and the compressor rotate about the same axis of rotation, so by driving the turbine in this way, the compressor is also driven, and air is taken in and compressed as described above. [0005] In the gas turbine operating in this way, combustion vibration may occur when the fuel is combusted, and the combustion vibration may cause noise or vibration during operation of the gas turbine. [0006] In particular...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/16F01D25/04F23R3/42
CPCF23R2900/00014F23M99/005F23R3/005F23R3/06F01D25/04F01D9/023F23R3/46F23M20/005F23R3/16F23R3/42
Inventor 中村聪介木下泰希小野正树松山敬介谷口健太
Owner MITSUBISHI POWER LTD
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