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US 2022/0025819 A1Published application
Turbine apparatus
AssigneeDoosan Heavy Industries Construction Co., Ltd
InventorsJin Woong HA, GeonHwan Cho
Life of this patent
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Abstract
Disclosed is a turbine apparatus. The turbine apparatus includes s stator, a rotor rotatably installed in the stator, and a sealing mechanism provided to prevent a working fluid from leaking between the stator and the rotor. The sealing mechanism is configured such that when the rotor is stopped, the sealing mechanism is brought into contact with the rotor, and when the rotor is rotated, the sealing mechanism is formed to be spaced from the rotor by a predetermined gap.
Claims20
A turbine apparatus comprising:
- a stator;
- a rotor rotatably installed in the stator;
- a compressor receiving a rotational force from the rotor to compress air;
- a combustor mixing fuel with the air compressed in the compressor and igniting a fuel-air mixture to generate a combustion gas;
- a turbine rotating the rotor using a rotational force from the combustion gas generated in the combustor;
- and
- a sealing mechanism provided to prevent air or combustion gas from leaking between the stator and the rotor,
- wherein the sealing mechanism includes:
- a casing coupled to the stator and having a chamber opened toward the rotor;
- a seal pad accommodated in the chamber so as to be reciprocable in a rotationally radial direction of the rotor;
- and
- a spring applying an elastic force to the seal pad in a direction in which the seal pad approaches the rotor,
- wherein the seal pad includes an inner circumferential surface facing the rotor, and wherein the inner circumferential surface of the seal pad is provided with an engraved groove,
- wherein the sealing mechanism is brought into contact with the rotor when the rotor is stopped, and the sealing mechanism is spaced apart from the rotor by a predetermined gap under a hydrodynamic load generated in the groove when the rotor is rotated.
11 more elements
A turbine apparatus comprising:
- a stator;
- a rotor rotatably installed in the stator;
- a nozzle spraying steam;
- a bucket rotating the rotor using a rotational force from the steam injected from the nozzle;
- a sealing mechanism provided to prevent air or combustion gas from leaking between the stator and the rotor,
- wherein the sealing mechanism includes:
- a casing coupled to the stator and having a chamber opened toward the rotor;
- a seal pad accommodated in the chamber so as to be reciprocable in a rotationally radial direction of the rotor;
- and
- a spring applying an elastic force to the seal pad in a direction in which the seal pad approaches the rotor,
- wherein the seal pad includes an inner circumferential surface facing the rotor, and wherein the inner circumferential surface of the seal pad is provided with an engraved groove,
- wherein the sealing mechanism is brought into contact with the rotor when the rotor is stopped, and the sealing mechanism is spaced apart from the rotor by a predetermined gap under a hydrodynamic load generated in the groove when the rotor is rotated.
9 more elements
Dependencies are inferred from the claim text.