Abstract: A hydrogen generator associated with the invention comprises a hydro-desulfurizer (1) configured to remove sulfur compounds from a raw material; a reformer (2) configured to generate hydrogen-containing gas with use of the raw material that has passed through the hydro-desulfurizer (1); a raw material supply device (3) configured to supply the raw material to the reformer (2); a recycle flow passage (4) configured to supply a portion of the hydrogen-containing gas, discharged from the reformer (2), to the raw material before the raw material flows into the hydro-desulfurizer (1); an on-off valve (5) provided in the recycle flow passage (4); a pressure detector (6) located at a position upstream of the on-off valve (5) in the recycle flow passage (4); and an abnormality detector (7) configured to detect an abnormal clogging in the recycle flow passage (4) based on a pressure detected by the pressure detector (6), in a state in which the raw material supply device (3) is supplying the raw material to the reform

Abstract: A hydrogen generation apparatus includes: a reformer configured to generate a hydrogen-containing gas by using a raw material; a hydrodesulfurizer configured to remove a sulfur compound from the raw material; a recycle passage through which the hydrogen-containing gas is supplied to the hydrodesulfurizer; a condenser provided on the recycle passage or on a gas passage upstream from the recycle passage; a drain passage through which water condensed in the condenser is drained; a heating medium passage through which a heating medium that recovers heat from the condenser flows; a delivery device configured to cause the heating medium to flow through the heating medium passage; and a controller configured to cause the delivery device to operate when the hydrogen-containing gas is not flowing through the recycle passage at at least one of start-up and stopping of the hydrogen generation apparatus.

Abstract: A hydrogen generator comprises a reformer configured to generate a hydrogen-containing gas through a reforming reaction using a raw material; a hydrodesulfurization unit configured to remove a sulfur compound from the raw material; a recycle passage configured to flow therethrough the hydrogen-containing gas to be added to the raw material in a state before the raw material flows into the hydrodesulfurization unit, the recycle passage having a downward slope; and a water drain passage configured to discharge condensed water generated in the downward slope of the recycle passage.

Abstract: A hydrogen generator includes: a reformer configured to generate a hydrogen-containing gas by using a raw material; a hydro-desulfurizer configured to remove a sulfur compound in the raw material; a recycle passage through which the hydrogen-containing gas is supplied to the raw material before the raw material flows into the hydro-desulfurizer; a booster configured to supply the raw material to the reformer; a raw material supply passage through which the raw material to be supplied to the reformer flows; and an ejector which is disposed on the raw material supply passage provided downstream of the booster and upstream of the hydro-desulfurizer and into which the hydrogen-containing gas flows from the recycle passage.

Abstract: A hydrogen generator includes: a reformer (102) configured to generate a hydrogen-containing gas by a reforming reaction using a raw material; a combustor (104) configured to heat the reformer; an air supplying device (106) configured to supply combustion air to the combustor; a first heat exchanger (108) configured to recover heat from a flue gas discharged from the combustor; a first heat medium passage (110) through which a first heat medium flows, the first heat medium receiving the heat recovered from the flue gas in the first heat exchanger; a first pump (112) configured to cause the first heat medium in the first heat medium passage to flow; a heat accumulator (140) configured to store the heat recovered by the first heat medium; and a controller (114) configured to cause the first pump to operate in a cooling step that is a step of cooling down at least the reformer by supplying the air from the air supplying device to the combustor in a state where the combustor is not carrying out combustion during

Abstract: A hydrogen generator of the present invention includes a reformer (16) for generating a hydrogen-containing gas through a reforming reaction using a raw material; a combustor (102a) for heating the reformer (16); a combustion air supplier (117) for supplying combustion air to the combustor (102a); and an abnormality detector (110a) for detecting an abnormality; and a controller (110) configured to control the combustion air supplier (117) such that the reformer (16) is cooled with a higher rate in an abnormal shut-down process executed after the abnormality detector (110a) detects the abnormality, than in a normal shut-down process.

Abstract: A hydrogen generator associated with the invention comprises a hydro-desulfurizer (1) configured to remove sulfur compounds from a raw material; a reformer (2) configured to generate hydrogen-containing gas with use of the raw material that has passed through the hydro-desulfurizer (1); a raw material supply device (3) configured to supply the raw material to the reformer (2); a recycle flow passage (4) configured to supply a portion of the hydrogen-containing gas, discharged from the reformer (2), to the raw material before the raw material flows into the hydro-desulfurizer (1); an on-off valve (5) provided in the recycle flow passage (4); a pressure detector (6) located at a position upstream of the on-off valve (5) in the recycle flow passage (4); and an abnormality detector (7) configured to detect an abnormal clogging in the recycle flow passage (4) based on a pressure detected by the pressure detector (6), in a state in which the raw material supply device (3) is supplying the raw material to the reform

Abstract: A fuel cell system according to the present invention includes: a deodorizing device (20) configured to remove an odor component contained in a raw material gas; a reformer (32) configured to generate a hydrogen-containing gas through reforming reaction using the raw material gas that is discharged from the deodorizing device; a fuel cell (1) configured to generate power by using the hydrogen-containing gas that is discharged from the reformer; at least one on-off valve (21a, 21b, 3a, 3b, 28, 29) provided on the combustible gas passage which is downstream from the deodorizing device and which extends through the reformer; and a stuck-state checker (13, 18, 7) configured to perform a stuck-state check on the on-off valve by supplying the raw material gas to the combustible gas passage.

Abstract: A hydrogen generator (100) includes: a reformer (1) configured to generate a hydrogen-containing gas by a reforming reaction using a material gas; a hydro-desulfurizer (2) configured to remove a sulfur compound in the material gas; a recycled gas passage (9) through which the hydrogen-containing gas added to the material gas before the material gas flows into the hydro-desulfurizer (2) flows; a first on-off valve (3) disposed on the recycled gas passage (9); a material gas passage through which the material gas supplied to the reformer (1) flows; a second on-off valve (5) disposed on a portion of the material gas passage, the portion being located downstream of a connection portion where the material gas passage and the recycled gas passage (9) are connected to each other; and a controller (6) configured to open the first on-off valve (3) after the generation stop of the hydrogen-containing gas to supply the material gas to the recycled gas passage (9), and the controller (6) closes the second on-off valve (5

Abstract: A hydrogen generator comprises a reformer configured to generate a hydrogen-containing gas through a reforming reaction in an internal space thereof using a material gas and steam; a material gas supply passage through which the material gas is supplied to the reformer; a material gas supplier which is provided at the material gas supply passage to supply the material gas to the reformer; a first valve configured to open and close the material gas supply passage; an evaporator configured to generate a steam supplied to the reformer; a water supplier configured to supply water to the evaporator; a communicating passage for allowing the reformer to communicate with atmosphere; a second valve configured to open and close the communicating passage; and a controller configured to stop the material gas supplier and the water supplier and close the first valve and the second valve at shutdown of the hydrogen generator; and open the second valve prior to opening the first valve when the material gas supplier resumes

Abstract: A fuel cell system (1) includes a fuel cell (7), an electromagnetic diaphragm pump (8), a flow detector (9), and a controller (20). The controller is configured to set the frequency of the AC voltage (applied AC voltage) applied to the electromagnetic diaphragm pump, control the voltage of the applied AC voltage in the set frequency to cause the flow rate of the gas detected by the flow detector to reach a target flow rate; and the controller is configured to newly set the frequency of the applied AC voltage to a frequency at which the voltage of the applied AC voltage becomes smaller than a predetermined voltage when the voltage of the applied AC voltage becomes equal to or greater than the predetermined voltage.

Abstract: Congestion occurrence in a communication network is controlled when performing data transmission based on a first protocol between a first edge node and a second edge node. The first edge node detects a first congestion state identifying a congestion state of the first edge node, and sets first congestion information identifying the detected first congestion state to a packet that is to be transmitted from the first edge node to the second edge node. The first edge node transmits the packet having the first information to the second edge node at the time when the first edge node performs data transmission based on a second protocol from the first edge node to the second edge node, wherein the second protocol is a connectionless protocol positioned at a protocol layer higher than the first protocol.

Abstract: A hydrogen generating apparatus of the present invention includes a controller (20) configured to, during a stop period, control a material gas feeding device (10) to feed a material gas to a gas passage which is located between the material gas feeding device (10) and a valve (16) to perform a maintaining process for maintaining a pressure in an interior of the gas passage at value which is not smaller than a first threshold which is an atmospheric pressure or larger. When the controller (20) detects there is an abnormality in the maintaining process, the controller (20) controls the material gas feeding device (10) and an ignition device (5A) to feed the material gas with an amount which is larger than an amount in a case where the controller detects there is no abnormality in the maintaining process, during a period which lapses from when the controller detects the abnormality until the ignition device starts an ignition operation in a start-up process.

Abstract: A fuel cell system of the present invention includes: a hydrogen generator (1) having a reformer (1a) configured to generate a hydrogen-containing gas by a reforming reaction using a raw material; a fuel cell (2) configured to generate electric power using the hydrogen-containing gas supplied from the hydrogen generator (1); a combustor (3) configured to combust an anode off gas discharged from the fuel cell (2) to heat the reformer (1a); a CO detector (7) configured to detect a carbon monoxide concentration of a flue gas discharged from the combustor (3); an electric heater (8) configured to heat the CO detector (7); and a controller (19), and the controller (19) is configured to increase an amount of energization to the electric heater (8) in accordance with an increase in an amount of electric power generated by the fuel cell (2).

Abstract: A network apparatus, wherein a bearer is set between the network apparatus and a gateway apparatus connects a radio access network and a core network, including: a tunneling processing unit that encapsulates user data in accordance with a tunneling protocol; a data combining unit that generates combined data in which a plurality of the encapsulated user data to be transmitted to the same the gateway apparatus are combined; a header generation unit that generates a header of the network protocol storing the bearer identifier of the bearer transmitting user data included in the combined data; and a transmission unit that transmits a packet of the combined data having the header added thereto to the gateway apparatus.

Abstract: A hydrogen generator (100) includes: a reformer (1) configured to generate a hydrogen-containing gas using a raw material and steam; a water evaporator (4) configured to supply the steam to the reformer (1); a sealing device (10) provided on a passage located downstream of the reformer (1) and configured to block a gas in the passage from flowing to the atmosphere; and a depressurizer (3) provided on a passage located upstream of the reformer (1) and configured to release to the atmosphere, pressure in the hydrogen generator (100) which pressure is increased by water evaporation in the water evaporator (4) after the sealing device (10) is closed.

Abstract: A hydrogen generating apparatus including a reformer which performs a reforming reaction using a material and steam to generate hydrogen-containing gas; a water evaporator which generates the steam supplied to the reformer; a first water pathway through which reforming water to be supplied to the water evaporator flows; a pump which supplies the reforming water to the water evaporator 1a; a second water pathway 7 branching from the first water pathway on the downstream side of the pump; a first water tank to which the water flowing through the second water pathway flows; a first flow rate controller provided on the second water pathway; and a controller which operates the pump and controls the first flow rate controller so that water flows through the second water pathway, thereby stably generating hydrogen and preventing degradation of the reformer thereof is realized.

Abstract: Provided is a hydrogen generator capable of suppressing degradation in capability of a hydrogen generator which is caused by crush of particulate reforming catalyst and of suppressing decrease in reforming efficiency due to decrease in heat transfer efficiency of a catalyzing portion which is caused by the crush of the particulate reforming catalyst. A hydrogen generator comprises a catalyzing portion 50 having particulate reforming catalyst P, and a combusting portion 5 for heating the catalyzing portion 50, the hydrogen generator being configured to generate a reformed gas containing hydrogen while flowing a material gas containing steam in a direction in which the catalyzing portion 50 extends. The catalyzing portion 50 includes a separating member 40. The separating member 40 is disposed on a separating cross-section which is a cross-section of the catalyzing portion 50 in a direction perpendicular to the direction in which the catalyzing portion 50 extends.

Abstract: A mobile station-side acquirer acquires the MTU value notified by a base station-side notifier and stores the acquired MTU value in a mobile station-side memory. A mobile station-side transmitter transmits data to a destination with the data size set to be smaller than or equal to the MTU value stored in the mobile station-side memory. A base station-side acquirer acquires the MTU value of the transmission path and stores the acquired MTU value in a base station-side memory. The base station-side notifier notifies the mobile station of the MTU value stored in the base station-side memory.

Abstract: A hydrogen generation apparatus according to the present invention includes: a hydrogen generator configured to generate a fuel gas through a reforming reaction by using a raw fuel; a combustor configured to heat the hydrogen generator; an on-off valve configured to open/block a gas passage through which the gas that is sent out from the hydrogen generator is supplied to the combustor; a combustion air supply device configured to supply combustion air to the combustor; an ignition device provided at the combustor; and a controller. In a case where flame extinction has occurred at the combustor during generation of a hydrogen-containing gas in a start-up process, the controller performs an ignition operation of the ignition device with the on-off valve kept opened.