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    • 1. 发明专利
    • FUEL CELL SYSTEM WITH HIGH FUNCTION REACTOR
    • JPH0645000A
    • 1994-02-18
    • JP19877092
    • 1992-07-24
    • HITACHI LTDHITACHI TECHNO ENG
    • OOYANAI HIDEOTAKASHIMA YOSHIEHORIUCHI SUSUMUSATO TAKAOAMANO YOSHIAKI
    • H01M8/04H01M8/06
    • PURPOSE:To enable a simple and low-cost fuel cell system to be constructed so as to reduce a heat release loss by using a high function reactor in which functions of a reformer, a CO transformer, a desulfurizer and a plurality of a heat exchanger for good heat balance are integrated together. CONSTITUTION:Raw material gas enters from a raw material gas header 10 into a high function reactor 10 after becoming confluent with a part of gas including much hydrogen, passes a desulfurizing catalyzer layer 10c and a reforming catalyzer layer 10b to be reformed and enters into an internal turning header 10m. The turned reformed gas flows out of the reforming gas header 10j through a heat conductive particle layer 10e and a CO transformer catalyzer layer 10d. On the other hand, burning gas enters from a combustion gas header 10g, burns on the burning catalyzer layer 10e to obtain high temperature necessary for the reaction, transmits the heat to a catalyzer layer 10b and 10c on both sides, and flows out through the heat conductive particles layer 10e and an exhaust gas header 10h. Cooling water enters from a cooling water inlet header 10k and flows out of a cooling header 101 through a cooling path. Power generation is made possible by receiving the raw gas including sulfur component and hydrogen and water vapor from the header 10i.
    • 2. 发明专利
    • CHEMICAL REACTOR
    • JPH061601A
    • 1994-01-11
    • JP16071092
    • 1992-06-19
    • HITACHI LTD
    • SATO TAKAOOOYANAI HIDEOTAKASHIMA YOSHIEHORIUCHI SUSUMUAMANO YOSHIAKIHIRABAYASHI KENTARO
    • B01J8/02B01J8/04C01B3/38H01M8/04H01M8/06
    • PURPOSE:To decrease radiation loss by integrating a combustion reaction part from which a heat source is taken, a desulfurizing reaction part of a gaseous starting material, a reforming reaction part and a CO conversion reaction part so that they may be at the required temp. level and performing heat exchange between the reaction parts. CONSTITUTION:Combustion gas is supplied from an inlet 10g and burned in a combustion catalyst layer 10a to reach the required temp. for reforming and transmits the heat to reforming catalyst layers 10b and desulfurizing catalyst layers 10c on both sides and is discharged from an exhaust gas line 10h through heat transfer particles. After a gaseous starting material, such as town gas or natural gas is introduced from an inlet 10i to remove sulfur included in the gas of 150-400 deg.C in the desulfurizing catalyst layer 10c, it is mixed with steam to send the mixture to the reforming catalyst layer 10b where it is reformed into H2 rich gas at 500-700 deg.C. Since the reformed gas includes the CO component, it is led to a CO conversion catalyst layer 10d to perform conversion (CO CO2) at 200-300 deg.C. After that, the H2 rich reformed gas contg. CO2 is taken out of an outlet 10j to the outside while performing heat exchange in the most outside cooling water tank 10f.
    • 3. 发明专利
    • CONTROLLING METHOD FOR FUEL CELL DEVICE
    • JPH053041A
    • 1993-01-08
    • JP15072491
    • 1991-06-24
    • HITACHI LTDTOKYO GAS CO LTD
    • NAKAMURA TOMIOOOYANAI HIDEOHORIUCHI SUSUMUIKEDA GENICHIOKUDA MAKOTO
    • H01M8/04
    • PURPOSE:To provide a stable electrical output by computing and controlling incremental opening of respective regulating valves for a primary fuel, a cathode air, and a steam from the deviation between the initial cell voltage and the present cell voltage corresponding to the present output power value. CONSTITUTION:The present power value is computed from a cell output voltage and a cell output current, the corresponding initial cell voltage is computed in a function generator FG4, the deviation between the initial cell voltage and the present cell voltage is input into function generators FG'1, FD'2, and FG'3. The generators FG'1, FG'2, and FG'3 compute the valve opening increment, namely flow increment, corresponding to voltage deviations of a primary fuel regulating valve 9, a cathode air regulating valve 10, and a steam regulating valve 11, and are subsequently added to respective regulating valves to control them. Whereby, the deterioration in battery cell characteristics can automatically be detected and increase the quantity of hydrogen being supplied to a hydrogen electrode in the cell main body so as to stably provide an electrical output.
    • 4. 发明专利
    • TRAVELING DEVICE FOR TRUCK
    • JPH08192743A
    • 1996-07-30
    • JP469295
    • 1995-01-17
    • HITACHI LTD
    • YAMAMOTO KENJIABE BUEIOOYANAI HIDEO
    • B61F3/00
    • PURPOSE: To enable a truck to enter a plurality of lines without using a plurality of trucks, cranes or the like by providing a traveling device for each proceeding direction necessary for changing the proceeding direction in the intersection point of track rails for traveling. CONSTITUTION: Two track rails 1 and three track rails 2 orthogonal thereto are laid. Traveling wheels 6 for the rail 1 are of 4 wheels of a pair of left and right wheels. H-steel is used for the rail 2 orthogonal to the rail 1. Total 6 traveling devices 7 for the rail 2 are provided. Also, the traveling device 7 for the rail 2 is set to the received state during the traveling on the rail 1. When the traveling device 7 meets the rail 2 in traveling on the rail 1, a truck 5 is lifted up with a manual hydraulic jack 8 while being held horizontally. Next, a traveling device receiving lever 15 for the rail 2 is turned to rotate by 180 deg. the traveling device 7 and take it out of a receiving device 11 so that the truck 5 is supported on the rail 2 by the traveling device for the rail 2.
    • 7. 发明专利
    • FUEL SUPPLYING DEVICE FOR FUEL CELL SYSTEM
    • JPS61188866A
    • 1986-08-22
    • JP2827985
    • 1985-02-18
    • HITACHI LTDHITACHI TECHNO ENG
    • OOYANAI HIDEOAMANO YOSHIAKI
    • H01M8/06
    • PURPOSE:To protect a fuel cell from poisoning effect of carbon monoxide when the concentration of carbon monoxide gas exceeds allowable value and make it compact by separating hydrogen gas in the reformed and converted hydrogen rich gas from the other gas at a position between a converter and a fuel cell body. CONSTITUTION:Fuel gas mixed with steam in the ejector 4 is subjected to steam reforming reaction in the reacting portion 2a of a reformer 2, and then flows into a shift converter 3. Unreacted carbon monoxide is used again to convert steam into hydrogen gas in the converter 3. Hydrogen rich converted gas 61 thus obtained is perfectly separated into hydrogen and the other gas in a hydrogen filtering device 5. Pure hydrogen gas 63 is introduced to the hydrogen pole 1a in a cell body 1. The gas separated and exhausted by the device 5 contains unreacted fuel and carbon monoxide gas, so the gas is sent into the burning portion 2b of the reformer 2 and used as a heat source for reforming reaction in the reformer 2. Accordingly, degradation of platinum catalyst due to poisoning effect of carbon monoxide does not take place.