Abstract: A tubular combustion chamber including a tubular combustion chamber whose front-end is open; and, fuel-gas spraying nozzles and oxygen-containing-gas spraying nozzles, for spraying a fuel and an oxygen-containing-gas separately and individually, or for spraying a premixed gas; wherein respective orifices of the respective nozzles face toward an inner surface of the combustion chamber, so as to spray the fuel-gas and the oxygen-containing-gas in a neighborhood of a tangential direction of an inner circumferential wall of the combustion chamber; wherein the tubular flame burner is a multi-stage tubular burner that is unified in a body, by using a plurality of the tubular flame burners, and by connecting the front-end of the tubular flame burner with a smaller inner diameter of the combustion chamber into the rear-end of the tubular flame burner with a greater inner diameter of the combustion chamber.

Abstract: A power generation system includes: a hot water storage tank; a fuel cell apparatus configured to generate electric power; a heat supply apparatus provided separately from the fuel cell apparatus and configured to supply heat to the hot water storage tank; and a controller configured to operate the fuel cell apparatus in accordance with a predetermined first operation plan, and to operate the heat supply apparatus in accordance with a predetermined second operation plan. The controller is configured to perform, based on the first operation plan, second operation plan change control to operate the heat supply apparatus in a manner different from the predetermined second operation plan. The second operation plan change control is to reduce an output of the heat supply apparatus in accordance with an operation of the fuel cell apparatus, the operation being performed in accordance with the first operation plan.

Abstract: A fuel cell power generation apparatus (1) includes an installation environment information inputting section (25), a notification device (26) and a controller (23). The controller (23) is configured to set a first period between a maintenance time and a notification time based on the installation environment information input by an installation environment information inputting section.

Abstract: A fuel cell system of the present invention includes: a fuel cell (11) configured to generate electric power using a fuel gas and an oxidizing gas; an anode off gas channel (34) through which an anode off gas discharged from an anode (2a) of the fuel cell (11) flows; a gas-liquid separator (10) disposed on the anode off gas channel (34) to separate moisture from the anode off gas, and including a water reservoir (18) configured to store the separated moisture as water; a temperature detector (28) configured to detect a temperature of the water reservoir (18); and an operation allowing device (52) configured not to allow an operation of the fuel cell system in a case where the temperature detected by the temperature detector (28) is equal to or higher than a first threshold that is higher than a standard ambient temperature.

Abstract: A fuel cell system of the present invention includes: a fuel cell (11) configured to generate electric power using a fuel gas and an oxidizing gas; an anode off gas channel (34) through which an anode off gas discharged from an anode (2a) of the fuel cell (11) flows; a gas-liquid separator (10) disposed on the anode off gas channel (34) to separate moisture from the anode off gas, and including a water reservoir (18) configured to store the separated moisture as water; a temperature detector (28) configured to detect a temperature of the water reservoir (18); and an operation allowing device (52) configured not to allow an operation of the fuel cell system in a case where the temperature detected by the temperature detector (28) is equal to or higher than a first threshold that is higher than a standard ambient temperature.

Abstract: A tubular flame burner including a tubular combustion chamber having two ends, wherein one end is an open front-end and the other end is a rear-end to which an ignition device is mounted; and fuel-gas spraying nozzles and oxygen-containing-gas spraying nozzles, wherein respective orifices of the respective nozzles face toward an inner surface of the combustion chamber, so as to spray a fuel-gas and an oxygen-containing-gas in a neighborhood of a tangential direction of an inner circumferential wall of the combustion chamber; wherein an ignition device is disposed at a position between a point of a tube axis extending along a longitudinal direction of the combustion chamber, and a point of an axis apart away, by ½ of a radius of the combustion chamber, from the point of the tube axis along a cross-sectional direction orthogonal to the longitudinal direction.

Abstract: A tubular combustion chamber including a tubular combustion chamber whose front-end is open; and, fuel-gas spraying nozzles and oxygen-containing-gas spraying nozzles, for spraying a fuel and an oxygen-containing-gas separately and individually, or for spraying a premixed gas; wherein respective orifices of the respective nozzles face toward an inner surface of the combustion chamber, so as to spray the fuel-gas and the oxygen-containing-gas in a neighborhood of a tangential direction of an inner circumferential wall of the. combustion chamber; wherein the tubular flame burner is a multi-stage tubular burner that is unified in a body, by using a plurality of the tubular flame burners, and by connecting the front-end of the tubular flame burner with a smaller inner diameter of the combustion chamber into the rear-end of the tubular flame burner with a greater inner diameter of the combustion chamber.

Abstract: A tubular flame burner, a combustion method, and combustion controller, are disclosed. Here, the tubular flame burner comprises: a tubular combustion chamber whose h one end is open; fuel-spraying nozzles and oxygen-containing-gas spraying nozzles. The respective nozzle orifices are formed in the inner face of the combustion chamber so that each spraying direction is in a neighborhood of a tangential direction of the inner circumferential wall of the combustion chamber. And an ignition device is disposed at a position r/2 from the tube axis of the combustion chamber (r: the radius of the combustion chamber). The length of the combustion chamber can be adjusted, the tubular flame burner is a multi-stage burner formed of multiple tubular flame burners, and a gap between the inner tube and the outer tube serves as a gas-flow path.

Abstract: The present invention relates to an alternate combustion type regenerative radiant tube burner apparatus which comprises a circular plate positioned between a burner unit and a main combustion chamber, so that preheated secondary combustion air is fed through an opening of the circular plate to the main combustion chamber. The burner apparatus has the circular plate (10), an annular air throat (2), a cylindrical peripheral cover (30) and a heat-transfer tube (11,16). A front end portion of the peripheral cover is integrally connected with a peripheral edge portion of the circular plate so as to prevent the secondary combustion air of the air throat from leaking on a periphery of the circular plate to the air diluting chamber (3). According to the present invention, the concentration of nitrogen oxides in the combustion exhaust gas can be definitely prevented from increasing, without being affected by the installation condition or thermal deformation of the radiant tube burner apparatus.

Abstract: A tubular flame burner, a combustion method, and combustion controller, are disclosed. Here, the tubular flame burner comprises: a tubular combustion chamber whose h one end is open; fuel-spraying nozzles and oxygen-containing-gas spraying nozzles. The respective nozzle orifices are formed in the inner face of the combustion chamber so that each spraying direction is in a neighborhood of a tangential direction of the inner circumferential wall of the combustion chamber. And an ignition device is disposed at a position r/2 from the tube axis of the combustion chamber (r: the radius of the combustion chamber). The length of the combustion chamber can be adjusted, the tubular flame burner is a multi-stage burner formed of multiple tubular flame burners, and a gap between the inner tube and the outer tube serves as a gas-flow path.

Abstract: An apparatus for hot-dip coating a steel strip, comprising: (a) an annealing furnace for continuously annealing the steel strip, the annealing furnace having an entrance side and an exit side; (b) a coating pot having a molten metal coating bath for coating the annealed steel strip; (c) a snout through which the annealed steel strip is introduced into the molten metal coating bath, one end of the snout being connected to the annealing furnace and the other end being immersed into the molten metal coating bath; (d) a seal device for sealing between the annealing furnace and the snout, the seal device being disposed at the exit side of the annealing furnace; and (e) a discharge device for discharging a gas containing a metal vapor from the snout to outside of the snout, the metal vapor being evaporated from the molten metal coating bath in the snout.

Abstract: A method for hot-dip coating a steel strip comprises: (a) continuously annealing the steel strip in an annealing furnace; (b) introducing the annealed steel strip into a molten metal coating bath through a snout; (c) dipping the annealed steel strip into the molten metal coating bath; (d) controlling a pressure inside of the snout; and (e) discharging a gas containing a metal vapor from the snout to outside of the snout. An apparatus comprises an annealing furnace, a coating pot, a control device for controlling a pressure inside the snout and a gas discharging device.

Abstract: An image forming device connected to one or more data processing devices is disclosed, and includes a printer unit, a copying unit, a document transport unit for transporting documents printed in the printer unit to a document mounting unit on the copying unit, and a guide member for moving the printer unit between a first position adjacent to the document mounting unit on the copying unit and a second position separated from the document mounting unit. The data processing device sends print jobs to the printer unit, and if multiple copies are desired, the printed documents are sent to the copying unit by the document transport device and copied.

Abstract: An apparatus for continuously cooling a metal strip, which comprises: at least one cooling roll, which is freely rotatable and in contact with a metal strip continuously travelling in the longitudinal direction thereof, for continuously cooling the metal strip, a cooling liquid flowing through the interior of the cooling roll to continuously cool same, a contact area between the surface of the cooling roll and the surface of the metal strip being controllable; and a gas cooler, arranged on the exist side of the at least one cooling roll, for continuously cooling the metal strip by blowing a cooling gas onto the surface of the metal strip so as to achieve a uniform temperature distribution in the width direction of the metal strip after the final cooling thereof, the gas cooler comprising a plurality of mutually independent nozzle headers for blowing the cooling gas onto the surface of the metal strip, and the plurality of nozzle headers controlling at least one of a flow rate and a flow velocity of the coolin