Abstract:
The present disclosure relates to a pulverizer includes a pulverizer housing with an grinding assembly having a grinding table situated therein. The grinding table provides a grinding surface area for a material, such as a fossil fuel, such as coal, to be pulverized. The grinding table is mounted on a gearbox shaft operatively connected to a gearbox drive mechanism so as to be capable of driven rotation within the pulverizer housing. A journal assembly having a journal head and the journal assembly and a spring assembly are mounted on the pulverizer housing so that the journal head engage the spring assembly.
Abstract:
An atomizer system 160 for use in a spray dry absorber 130, the atomizer system 160 includes a support member 161, an atomizing disc 162 rotatably coupled to the support member 161, a first feed line 163 for delivery of a reagent slurry 163a to a delivery area 165 and a second feed line 164 for delivery of a dilution liquid 164a to the delivery area 165. The delivery area 165 is positioned within the atomizer system 160 to reduce scale buildup generated by interaction of the reagent slurry 163a and the dilution liquid 164a.
Abstract:
A magnetic roller for being rotatable on a ferromagnetic surface is provided. The magnetic roller includes a roller wheel having an inner space, a magnetic array arrangement and at least one first drive mechanism. Further, the magnetic array arrangement is adapted to be swivelably disposed within the inner space of the roller wheel. The magnetic array arrangement includes a strong adhesion force side and a weak adhesion force side. Furthermore, the first drive mechanism is configured to swivelably drive the magnetic array arrangement. The first drive mechanism swivelably drive the magnetic array arrangement to direct the strong adhesion force side towards the oncoming ferromagnetic surface, and, to direct the weak adhesion force side towards the foregoing ferromagnetic surface to enable the roller wheel to move forward on the ferromagnetic surface.
Abstract:
A method is provided for repairing a single crystal turbine blade, which includes an airfoil with a tip having a tip cover plate, tip cooling air holes and a tip crown. The method includes removing the tip crown by manual grinding, thereby preserving the underlying tip cover plate; preparing the tip cooling air holes by manual grinding; closing said prepared tip cooling air holes by manual welding; and building-up a new tip crown by a LMF (Laser Metal Forming) process.
Abstract:
The disclosure concerns a nozzle for a gas turbine combustor, the nozzle comprising an inner channel, a swirl channel, a mixing zone and an outlet channel, wherein the nozzle extends from an inlet to an outlet, the swirl channel is disposed around the inner channel, the inner channel and the swirl channel extend from the inlet to the mixing zone, the mixing zone extends from the inner channel and the swirl channel to the outlet channel, and the outlet channel extends from the mixing zone to the outlet. A burner and a gas turbine comprising the nozzle are also described, along with a method of using the nozzle.
Abstract:
An improved closed loop Brayton cycle for a power plant is provided that includes a heater, at least one turbine, a recuperator, at least one cooler, at least one compressor, a bypass line and a flap valve arrangement in a closed circuit in which working fluid is circulated to produce electricity via a generator. Depending upon the requirement, such as, in case of gird load disconnection, speed of a shaft-line to which the turbine, the compressor and the generator are configured is also required to be reduced without any impact on the pressure drop in the cycle. For that the non-tight flap valve arrangement is configured on each conduit between the heater and the at least one turbine in a closest possible proximity to each turbine inlet.
Abstract:
The invention refers to burner arrangement for producing hot gases to be expanded in a gas turbine, including a burner inside a plenum, where the burner has means for fuel injection, means for air supply and means for generating an ignitable fuel/air mixture inside the burner, and a combustion chamber following downstream said burner having an outlet being fluidly connected to the gas turbine. The invention is characterized in that the means for air supply includes at least two separate flow passages, and that the one of the two flow passages is fed by a first supply pressure and the other flow passage is fed by a second supply pressure.
Abstract:
The filter includes: a structure with a C-shaped profile defining side walls and nozzle pipes, each connected to the structure. Each nozzle pipe has a longitudinal axis and an end; a plate connected over a border of the nozzle pipe end to close the nozzle pipe. The plate extends beyond the border. The end of the nozzle pipe is inserted between the side walls of the C-shaped profile. The plate is connected between the side walls of the C-shaped profile. A U-shaped pin defines a first and a second leg, wherein the first leg is inserted in holes of the side walls of the C-shaped profile. The first and the second leg rest on the nozzle pipe and embracing the nozzle pipe. The plate is at an angle (A) greater than 0° with a plane perpendicular to the longitudinal axis of the nozzle pipe. The second leg has a protrusion that rests against the plate.
Abstract:
The method for extraction or introduction of a rotor (4) from or into a stator (2) of an electric machine (1) includes removing the fan blades (20) from the seats (19) of the rotor shaft (26), connecting a first guide (16) into the seats (19) of the removed fan blades (20), connecting a second guide (23) to the stator or to an element fixed to the stator (2), extracting or inserting the rotor (4) by sliding the first guide (16) on the second guide (23).
Abstract:
A method for controlling the operation of a gas turbine with sequential combustion, which gas turbine comprises a compressor with variable inlet guide vanes (VIGV), a first combustor, a high-pressure turbine downstream of the first combustor, a second combustor downstream of the high-pressure turbine, and a low-pressure turbine downstream of the second combustor.