摘要 |
<p>In gas turbine split rings (1a, 1b), end faces (3a-1, 3b-1) having bent surfaces are formed in the flanges (4a, 4b). Adjoining split rings (1a, 1b) are coupled together with a groove (5-1) therebetween to form a cylindrical split ring. Notches (26a, 26b) are formed in the flanges (4a, 4b). These notches (26a, 26b) are sealed by inserting a seal plate (25) into the notches (26a, 26b) of adjoining split rings. A hole (2) for passing cooling air is drilled obliquely in the flange (4a). Cooling air (100) is allowed to flow out along the direction of rotation (of the turbine) (R). This cooling air (100) cools the outlet of the groove (5-1) due to the effect of film cooling. Because of such cooling, high temperature gas is prevented from staying in this area, cooling effect is enhanced, and hence burning of the end portions can be prevented. <IMAGE></p> |
申请人 |
MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
KUWABARA, MASAMITSU;TOMITA, YASUOKI;SUENAGA, KIYOSHI;KATAOKA, MASAHITO;SATO, YOSHICHIKA;WATANABE, KOJI |