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1. CA2261184 - COOLED STATIONARY BLADE OF A GAS TURBINE

专利局 加拿大
申请号 2261184
申请日 28.04.1998
公布号 2261184
公布日 12.11.1998
授权号
授权日 09.07.2002
公布类型 C
国际专利分类
F 机械工程;照明;加热;武器;爆破
01
至F04机器,发动机,泵
D
非变容式机器或发动机,如汽轮机
9
定子(非流体导向的外壳,调节、控制或安全方面,见有关各组)
02
喷嘴;喷嘴箱;静叶片;导管
F 机械工程;照明;加热;武器;爆破
01
至F04机器,发动机,泵
D
非变容式机器或发动机,如汽轮机
5
叶片;叶片的支承元件;叶片或元件的加热、隔热、冷却或防止振动装置
12
叶片
14
型式或结构
18
空心叶片;对叶片加热、隔热或冷却装置
F 机械工程;照明;加热;武器;爆破
01
至F04机器,发动机,泵
D
非变容式机器或发动机,如汽轮机
9
定子(非流体导向的外壳,调节、控制或安全方面,见有关各组)
02
喷嘴;喷嘴箱;静叶片;导管
04
环形或扇形的
F 机械工程;照明;加热;武器;爆破
02
燃烧发动机;热气或燃烧生成物的发动机装置
C
燃气轮机装置;喷气推进装置的空气进气道;空气助燃的喷气推进装置燃料供给的控制
7
不包含在组F02C 1/00至F02C 6/00中的或与上述各组无关的特征、部件、零件或附件;喷气推进装置的进气管
12
装置的冷却
16
以冷却介质为特点的
18
介质是气态的,如空气
F01D 9/02
F01D 5/18
F01D 9/04
F02C 7/18
CPC
F01D 9/02
F01D 5/187
F05D 2240/10
F05D 2240/81
F05D 2260/22141
申请人 MITSUBISHI HEAVY INDUSTRIES, LTD.
优先权数据 1997113845 01.05.1997 JP
标题
(EN) COOLED STATIONARY BLADE OF A GAS TURBINE
(FR) PALE FIXE DE REFROIDISSEMENT DE TURBINE A GAZ
摘要
(EN)


Disclosed is a cooled stationary blade assembly for a gas turbine, the
assembly comprising an outer shroud, an inner shroud, a stationary blade,
having a front edge and a rear edge, provided between the outer shroud and
the inner shroud, first steam cooling means provided in an interior of the
stationary blade which receives cooling steam in a first passage adjacent to
the front edge of the stationary blade and discharges cooling steam only
from a last passage adjacent to the rear edge of the stationary blade, and
second steam cooling means provided in the vicinity of an end portion of the
inner shroud. The first steam cooling means and the second steam cooling
means communicate with each other at the first passage and at the last
passage of the stationary blade, with the first steam cooling means
providing a portion of the cooling steam to the second steam cooling means
at the first passage of the stationary blade, and the second steam cooling
means returning the cooling steam to the first steam cooling means at the
last passage of the stationary blade to recover the cooling steam.