Doosan Enerbility Co., Ltd.

Doosan Heavy Industries & Construction Co., Ltd

Other

Gyeong Mo Nam

Bong Keun Kim

Su Nam You

Sung Jin Cho

Jae Yong Jeong

Disclosed is a combined reformer including two or more catalyst tubes reacting at different temperatures, having different reforming reactions continuously performed as a combustion gas sequentially supplies heat to two or more catalyst tubes, and capable of easily replacing a catalyst, and a catalyst replacement method thereof.

Combined reformer and catalyst replacement method thereof

Disclosed herein is a turbine blade having a leading edge, a trailing edge, a pressure side, and a suction side and having a cooling passage formed therein. The turbine blade includes a plurality of cooling holes formed on the pressure side or the suction side. Each of the cooling holes includes, a through-hole having a circular cross-section and angled outwardly toward the pressure side or the suction side from the cooling passage, a circular sink formed concavely with respect to the pressure side or the suction side in the vicinity of an upstream side of an exit of the through-hole, and an elliptical sink formed concavely with respect to the pressure side or the suction side in the vicinity of a downstream side of the exit of the through-hole.

Turbine blade and gas turbine including the same

A boiler facility includes first and second fuel transfer apparatuses for transporting fine particulate fuel to a combustor. A first fuel transfer apparatus includes a main body and a diffuser. The main body has a flow space through which fuel is transferred and an inner surface that defines the flow space of the main body and includes a lower inner surface that extends obliquely downward. The diffuser is installed at a downstream end of the main body, the diffuser having a flow space through which fuel is transferred and an inner surface that defines the flow space of the first diffuser and includes a lower inner surface that extends obliquely upward. A second fuel transfer apparatus includes a transfer pipe having a flow channel, a second diffuser installed along the inner circumferential surface of the transfer pipe, and a guide installed in the second diffuser and inclined downward.

Fuel transfer apparatus and boiler facility including same

A combined reforming apparatus is provided. The combined reforming apparatus includes a body, a first catalyst tube disposed inside the body and reacting at a first temperature to reform hydrocarbons (CH) having two or more carbon atoms into methane (CH), a second catalyst tube disposed inside the body, connected to the first catalyst tube, and reacting at a second temperature higher than the first temperature to reform methane (CH) into synthesis gas comprising hydrogen (H) and carbon monoxide (CO), a combustion unit configured to supply heat to the first and second catalyst tubes, a gas supply pipe configured to supply hydrocarbon gas to the first catalyst tube, a first steam supply pipe configured to supply steam to the first catalyst tube, and a second steam supply pipe configured to supply steam to the second catalyst tube.

Combined reforming apparatus

A pyrolysis gas reforming system is provided. The pyrolysis gas reforming system includes a pyrolysis unit configured to perform pyrolysis of waste, an oil-gas separation unit configured to separate a product generated by the pyrolysis unit into oil and gas, a pyrolysis gas purification unit configured to refine pyrolysis gas generated through the separation by the oil-gas separation unit, a pyrolysis gas reforming unit configured to generate synthesis gas by reforming the pyrolysis gas purified by the pyrolysis gas purification unit, a hydrogen gas shift reaction unit configured to convert carbon monoxide contained in the synthesis gas generated by the pyrolysis gas reforming unit into hydrogen and carbon dioxide, and a hydrogen separation unit configured to separate hydrogen from the synthesis gas discharged from the hydrogen gas shift reaction unit, wherein combustion gas generated by a burner of the pyrolysis gas reforming unit and used to supply heat to the pyrolysis gas reforming unit is used to supply heat to the pyrolysis unit.

Pyrolysis gas reforming system

An exhaust gas flow regulator and a heat recovery steam generator including the same are provided. The exhaust gas flow regulator includes a plurality of first tubes spaced apart from each other in a vertical direction, a support plate disposed in a direction perpendicular to the extension direction of the first tubes and through which the plurality of first tubes penetrates, and a second tube disposed at one or both ends of the support plate so as to be coupled to the support plate and extending parallel to the first tubes, wherein the second tube is provided with a guide plate disposed to redirect exhaust gases flowing adjacent to the second tube toward the first tube.

Exhaust gas flow regulator and heat recovery steam generator having same

Provided are a chevron vane that traps and removes droplets contained in steam and a moisture separator including the same. The chevron vane for trapping and removing droplets contained in steam includes a main frame group including multiple main frames arranged in a flow direction of steam and pivotably connected to each other, and a collection vane group mounted on the main frame group and including multiple collection vanes for trapping droplets contained in the steam.

Chevron vane and moisture separator including same

A combined reforming apparatus is provided. The combined reforming apparatus includes a body, a first catalyst tube disposed inside the body and reacting at a first temperature to reform hydrocarbons (CH) having two or more carbon atoms into methane (CH), a second catalyst tube disposed inside the body, connected to the first catalyst tube, and reacting at a second temperature higher than the first temperature to reform methane (CH) into synthesis gas comprising hydrogen (H) and carbon monoxide (CO), and a combustion unit configured to supply heat to the first and second catalyst tubes.

A structure for improving performance of cooling a blade of a gas turbine is provided in which interaction vortexes are generated between working fluid flowing along a surface of the blade and cooling fluid discharged onto the surface from an internal flow passage of the blade. The blade includes a surface structure formed by a gas hole having an outlet communicating with the surface of the blade to discharge the cooling fluid; and a vortex relief generator disposed so as to protrude from an inner periphery of the outlet and configured to generate counter vortexes having directionality opposite to the interaction vortexes so that the interaction vortexes are relieved by collision with the counter vortexes. The vortex relief generator includes a pair of opposing fins disposed in a path of the cooling fluid, each of which has a first surface to change a flow direction of the cooling fluid.

Growing community of inventors

Yongin-si, South Korea

Gyeong Mo Nam