COMBUSTOR OF GAS TURBINE

申请公布号：

JPS5913829(A)

申请号：

JP19820122061

申请日期：

1982.07.15

申请公布日期：

1984.01.24

申请人：

HITACHI SEISAKUSHO KK

发明人：

OOMORI TAKASHI;SATOU ISAO;ISHIBASHI YOUJI;MINAGAWA YOSHIMITSU

分类号：

F23R3/04;F23R3/06;(IPC1-7):23R3/06

主分类号：

F23R3/04

摘要：

PURPOSE:To reduce NOx and CO by a method wherein in the case of an LNG burning diluting air diffusion combustion type titled combustor attached with an air scoop hole, the projecting section of the air scoop hole is formed by combining a plurality of members having gradually reduced diameters, respectively, leaving gaps among the members. CONSTITUTION:A first scoop hole 18 having an inner diameter (d2) and a length (l2) is fixed to a combustion chamber 19 and a second scoop hole 21 having an inner diameter (d1) is fitted into the first scoop hole 18 through a support member 20 leaving a gap (t2) from the latter hole with the hole 21 projecting from the top end of the first scoop hole 18 by a length (l1). Likewise, a third scoop hole 22 having an inner diameter (d0) is fitted into the second scoop hole 21 leaving a gap (t1) from the latter hole with the hole 22 projecting from the hole 21 by a length (l0), to thereby form the air scoop hole having a predetermined length of projection L. With the a above structure, a part of air flowing through the scoop hole is injected from the gaps (t1) and (t2) so that the projections (l0) and (l1) are cooled. Therefore, it is possible to enlarge the length of the air scoop hole and to reduce the generation of NOx CO, HC and the like.