Title:
GAS TURBINE COMBUSTOR
Document Type and Number:
Japanese Patent JP2021055971
Kind Code:
A
Abstract:
To suppress generation of combustion vibration to improve structural reliability in a lean burn gas turbine combustor.SOLUTION: A gas turbine combustor comprises: a cylindrical liner that forms a combustion chamber; and a burner comprising an air hole plate that is arranged at the inlet of the liner and has a plurality of air holes for guiding compressed air to the combustion chamber, and a plurality of fuel nozzles that is arranged on the opposite side of the combustion chamber with the air hole plate interposed therebetween and injects fuel toward the corresponding air holes, wherein the air holes and the fuel nozzles form a plurality of concentric annular rows. An orifice is provided in each of the fuel flow paths of the plurality of fuel nozzles, the plurality of fuel nozzles are divided into a plurality of nozzle groups, and the axial position of the orifice is changed for each nozzle group.SELECTED DRAWING: Figure 1
Inventors:
ASAI TOMOHIRO
YOSHIDA SHOHEI
HIRATA YOSHITAKA
AKIYAMA YASUHIRO
YOSHIDA SHOHEI
HIRATA YOSHITAKA
AKIYAMA YASUHIRO
Application Number:
JP2019181123A
Publication Date:
April 08, 2021
Filing Date:
October 01, 2019
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS LTD
International Classes:
F23R3/28; F02C7/232; F23R3/30; F23R3/32
Domestic Patent References:
| JP2013170776A | 2013-09-02 | |||
| JP2014185791A | 2014-10-02 | |||
| JP2012154570A | 2012-08-16 | |||
| JP2004170010A | 2004-06-17 | |||
| JP2017533399A | 2017-11-09 |
Foreign References:
| US20100297566A1 | 2010-11-25 | |||
| US20130045450A1 | 2013-02-21 |
Attorney, Agent or Firm:
Kaichi International Patent Office