摘要:
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.
摘要:
A fuel cell system of the present invention includes: a fuel cell apparatus; an exhaust gas passage through which an exhaust gas from the fuel cell apparatus is discharged; and a water tank configured to store water present within the exhaust gas. The water tank includes a first reservoir, a second reservoir, and a communication part which is configured to allow the first reservoir and the second reservoir to communicate with each other at a lower part of the water tank. The second reservoir of the water tank is provided with a drain outlet which is disposed above the communication part. The exhaust gas passage is connected to the first reservoir of the water tank. The exhaust gas passage is configured such that: in cases where a flow of the exhaust gas within the exhaust gas passage is not blocked at any position downstream from the water tank, the exhaust gas is discharged to the atmosphere from the exhaust gas passage; and in cases where the flow of the exhaust gas within the exhaust gas passage is blocked at a position downstream from the water tank, the exhaust gas is discharged to the atmosphere through the drain outlet of the water tank.
摘要:
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) when it opens the first on-off valve (3).
摘要:
A fuel cell system of the present invention is a fuel cell system including a fuel cell (101) and includes a medium circulation passage (71), a heat medium tank (102), a first circulator (105), a recovered water tank (104), a water circulation passage (72), a second circulator (108), a water purifier (109), a temperature detector (111), and a controller (110). The heat medium circulation passage (71) and the water circulation passage (72) are configured so as to realize heat exchange between a heat medium and water. The controller (110) executes a circulation operation in which when the temperature detector (111) detects a temperature lower than a first temperature capable of sterilizing microorganisms, the second circulator (108) is caused to operate such that the temperature detected by the temperature detector (111) becomes the first temperature or higher. The controller (110) forbids the operation of the second circulator (108) when the temperature detector (111) detects a temperature equal to or higher than a second temperature that is lower than a temperature at which heat deterioration of the water purifier (109) occurs.
摘要:
A fuel cell system (100) includes: a first circulation passage (2) through which circulates a primary cooling medium to recovery the exhaust heat of the fuel cell system (100); a heat storage unit (5) configured to store a secondary cooling medium which has recovered heat from the primary cooling medium; a heat exchanger (4) where heat exchange takes place between the primary cooling medium and the secondary cooling medium; a second circulation passage (30A), not passing through the heat storage unit (5), through which circulates the secondary cooling medium to exchange heat with the primary cooling medium; a first circulator (6) configured to cause the primary cooling medium to circulate through the first circulation passage (2); a second circulator (8) configured to cause the secondary cooling medium to circulate through the second circulation passage (30A); a heater (200) configured to heat the secondary cooling medium; and a controller (40) configured to perform, for inhibiting freezing of the primary cooling medium, a first process so that the heater (200) is operated and the first and the second circulators (6) and (8) are operated.
摘要:
A fuel cell system (100) according to the present invention includes: a hydrogen generator (1) configured to generate a fuel gas through a reforming reaction by using a raw fuel; a fuel cell (7) configured to generate power by using the fuel gas; a combustor (2) configured to heat the hydrogen generator (1); at least one on-off valve (9A, 9B) configured to open/block a gas passage (9) through which the gas that is sent out from the hydrogen generator (1) is supplied to the combustor (2); and a combustion air supply device (4) configured to supply combustion air to the combustor (2); an ignition device (5) provided at the combustor (2), and a controller (30). The combustor (2) is configured to perform combustion during power generation of the fuel cell (7) by using the gas supplied through the gas passage (9). In a case where accidental flame extinction has occurred at the combustor (2) during the power generation of the fuel cell (7), the controller (30) performs an ignition operation of the ignition device (5) with the on-off valve (9A, 9B) kept opened.
摘要:
Included are: a power generation unit configured to generate electric power by consuming a raw material gas that has passed through a gas meter, the gas meter being configured to, if a state where continuously stopping a flow of the raw material gas for a reset period or longer is not performed has continued for a first upper limit period or longer, exert at least one of a function of outputting an abnormality indication signal and a function of blocking the flow of the raw material gas; a raw material gas supply device configured to supply the raw material gas to the power generation unit; and a controller. The controller is configured to: perform a raw material gas supply operation of supplying the raw material gas from the raw material gas supply device to the power generation unit in a case of performing normal stopping of a power generation operation; and stop the power generation operation, and stop the raw material gas supply operation until at least the reset period elapses, in a case where gas supply abnormality in which said state continues for a second upper limit period or longer has occurred, the second upper limit period being shorter than the first upper limit period.
摘要:
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.
摘要:
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.
摘要:
A fuel cell system (301) of the present invention comprises a fuel cell (1); a water circulating path (9) through which water associated with an operation of the fuel cell (1) circulates; a water circulator (10) for circulating water in the water circulating path (9); a heater (14) for heating the water circulating path (9); a first abnormality detector (29, 30) for detecting a first abnormality which is an abnormality relating to leakage of water from the water circulating path (9); and a controller (16); the fuel cell system being configured to cause the water circulator (10) to perform a water circulating operation for circulating the water in the water circulating path (9) and cause the heater (14) to perform a heating operation for heating the water circulating path (9), to suppress freezing in the water circulating path, wherein the controller (16) is configured to inhibit the water circulating operation for suppressing freezing and not to inhibit the heating operation for suppressing freezing, in a case where the fuel cell system (301) is shut down in response to detection of the first abnormality by the first abnormality detector (29, 30).