Connection structure of exhaust chamber, support structure of turbine, and gas turbine

1. A connection structure, comprising:

an exhaust chamber formed in a cylindrical shape;

a connection member formed in a cylindrical shape and disposed downstream of the exhaust chamber in a flowing direction of exhaust gas;

a support member connecting the exhaust chamber and the connection member, and configured to absorb thermal expansion;

a first insulator mounted on an outer peripheral surface of the exhaust chamber; and

a second insulator;

wherein

the connection member includes:

an exhaust duct disposed downstream of the exhaust chamber in the flowing direction of the exhaust gas,

an outer shell member formed in a ring shape and disposed at an outer peripheral side of the exhaust chamber, and

a high-temperature expansion joint,

the exhaust duct is disposed adjacent to the outer shell member,

the support member includes an exhaust duct support including a plurality of strips and disposed outside the first insulator,

the exhaust duct support has a first end connected to an end of the exhaust chamber and a second end connected to an end of the connection member,

the second insulator is mounted on an inner peripheral surface of the exhaust duct,

the exhaust chamber and the outer shell member are connected by the exhaust duct support, and

the outer shell member and the exhaust duct are connected by the high-temperature expansion joint.

2. The connection structure according to claim 1 , further comprising:

a gas seal that connects the exhaust chamber and the exhaust duct and is disposed upstream of the exhaust duct support in the flowing direction of the exhaust gas.

3. The connection structure according to claim 1 , further comprising:

a further connection member disposed upstream of the exhaust chamber,

wherein

the further connection member is defined by an exhaust casing,

the support member includes an exhaust chamber support, and

the exhaust casing and the exhaust chamber are connected by the exhaust chamber support.

4. The connection structure according to claim 3 , wherein the exhaust chamber support comprises a plurality of strips arranged side by side in a circumferential direction of the exhaust chamber.

5. The connection structure according to claim 3 , wherein the exhaust chamber support is deformable for absorbing thermal expansion.

6. The connection structure according to claim 3 , wherein

the exhaust chamber support is disposed outside of the first insulator, and

the exhaust chamber support has a first end connected to another end of the exhaust chamber and a second end connected to an end of the exhaust casing.

7. The connection structure according to claim 1 is included in a gas turbine.

8. The connection structure according to claim 3 is included in a gas turbine.

9. A gas turbine that is configured to obtain rotational power by supplying fuel to compressed air compressed by a compressor, burning the fuel in a combustor, and supplying produced combustion gas to a turbine, said gas turbine comprising:

an exhaust chamber formed in a cylindrical shape;

a connection member formed in a cylindrical shape and disposed downstream of the exhaust chamber in a flowing direction of exhaust gas;

a support member connecting the exhaust chamber and the connection member, and configured to absorb thermal expansion;

a first insulator mounted on an outer peripheral surface of the exhaust chamber; and

a second insulator;

wherein

the connection member includes:

an exhaust duct disposed downstream of the exhaust chamber in the flowing direction of the exhaust gas,

an outer shell member formed in a ring shape and disposed at an outer peripheral side of the exhaust chamber, and

a high-temperature expansion joint,

the exhaust duct is disposed adjacent to the outer shell member,

the support member includes an exhaust duct support including a plurality of strips and disposed outside the first insulator,

the exhaust duct support has a first end connected to an end of the exhaust chamber and a second end connected to an end of the connection member,

the second insulator is mounted on an inner peripheral surface of the exhaust duct,

the exhaust chamber and the outer shell member are connected by the exhaust duct support, and

the outer shell member and the exhaust duct are connected by the high-temperature expansion joint.

10. A gas turbine that is configured to obtain rotational power by supplying fuel to compressed air compressed by a compressor, burning the fuel in a combustor, and supplying produced combustion gas to a turbine, said gas turbine comprising:

an exhaust chamber formed in a cylindrical shape;

a connection member formed in a cylindrical shape and disposed downstream of the exhaust chamber in a flowing direction of exhaust gas;

a support member connecting the exhaust chamber and the connection member, and configured to absorb thermal expansion;

a first insulator mounted on an outer peripheral surface of the exhaust chamber;

a second insulator;

wherein

the connection member includes:

an exhaust duct disposed downstream of the exhaust chamber in the flowing direction of the exhaust gas,

an outer shell member formed in a ring shape and disposed at an outer peripheral side of the exhaust chamber, and

a high-temperature expansion joint,

the exhaust duct is disposed adjacent to the outer shell member,

the support member includes an exhaust duct support including a plurality of strips and disposed outside the first insulator,

the exhaust duct support has a first end connected to an end of the exhaust chamber and a second end connected to an end of the connection member,

the second insulator is mounted on an inner peripheral surface of the exhaust duct,

the exhaust chamber and the outer shell member are connected by the exhaust duct support, and

the outer shell member and the exhaust duct are connected by the high-temperature expansion joint; and

a further connection member disposed upstream of the exhaust chamber and including an exhaust casing,

wherein

the support member includes an exhaust chamber support, and

the exhaust casing and the exhaust chamber are connected by the exhaust chamber support.

11. A gas turbine that is configured to obtain rotational power by supplying fuel to compressed air compressed by a compressor, burning the fuel in a combustor, and supplying produced combustion gas to a turbine, the turbine comprising:

an exhaust chamber formed in a cylindrical shape;

a connection member formed in a cylindrical shape and disposed downstream of the exhaust chamber in a flowing direction of exhaust gas;

a support member connecting the exhaust chamber and the connection member, and configured to absorb thermal expansion;

a first insulator mounted on an outer peripheral surface of the exhaust chamber; and

a second insulator;

wherein the connection member includes:

an exhaust duct disposed downstream of the exhaust chamber in the flowing direction of the exhaust gas,

an outer shell member formed in a ring shape and disposed at an outer peripheral side of the exhaust chamber, and

a high-temperature expansion joint; and

a leg for mounting the exhaust chamber connected to the outer shell member,

wherein

the exhaust duct is disposed adjacent to the outer shell member,

the support member includes an exhaust duct support including a plurality of strips and disposed outside the first insulator,

the exhaust duct support has a first end connected to an end of the exhaust chamber and a second end connected to an end of the connection member,

the second insulator is mounted on an inner peripheral surface of the exhaust duct,

the exhaust chamber and the outer shell member are connected by the exhaust duct support, and

the outer shell member and the exhaust duct are connected by the high-temperature expansion joint.