OIL AND GAS DUAL-EFFECT SEAL STRUCTURE FOR GAS TURBINE

WIPO Patent Application WO/2024/066426

A1

An oil and gas dual-effect seal structure for a gas turbine, comprising: a turbine rotor, a fixed sleeve, a supporting ring, a seal ring, a sleeve, an adjusting ring, a bearing, a locking gasket and a nut. The turbine rotor is sleeved with the fixed sleeve, the outer side of the fixed sleeve being sequentially sleeved from left to right with the sleeve, the adjusting ring, the bearing and the nut. The nut is pressed against and fixed to the turbine rotor by means of the locking gasket. A seal groove is formed in the fixed sleeve on the left side of the sleeve, the seal ring being arranged in the seal groove. The outer sides of the fixed sleeve, the seal ring and the sleeve are sleeved with the supporting ring. The oil and gas dual-effect seal structure can prevent gas from leaking out, and also prevent lubricating oil from entering the inner cavity of a turbine and reduce friction, thereby achieving the effects of improving turbine safety and increasing turbine efficiency.

JIANG DONGPO (CN)
ZHANG HUAJIE (CN)
SHAO ZHIWEI (CN)
FENG YONGZHI (CN)
GE CHUNXING (CN)
JI WENHUI (CN)
YUAN XINYU (CN)
WANG ZEZHONG (CN)
ZHOU CHI (CN)

PCT/CN2023/097035

April 04, 2024

May 30, 2023

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HARBIN ELECTRIC POWER GENERATION EQUIPMENT NATIONAL ENGINEERING RES CENTER CO LTD (CN)
HARBIN STEAM TURBINE FACTORY CO LTD (CN)

F01D11/00; F02C7/28

CN115539135A	2022-12-30
CN110529503A	2019-12-03
CN203614232U	2014-05-28
US20200040754A1	2020-02-06
US20200325788A1	2020-10-15

HARBIN WEICHEN PATENT AGENCY (GENERAL PARTNERSHIP) (CN)

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