95 results about "Home fuel cell" patented technology

There is provided a high-efficiency DC-DC converter which comprises a voltage resonance circuit to which electric power from a low-voltage direct-current power supply, including a household fuel cell and a solar cell, is input and performs DC-AC conversion by zero-voltage switching, an insulating high-frequency transformer which transmits the converted power, a current resonance circuit which is provided on the secondary side of the transformer and performs zero-current switching, a rectifier circuit which rectifies the output from the current resonance circuit, and a smoothing circuit which rectifies the output from the rectifier circuit.

The invention discloses a cooling system of a hydrogen energy tramcar fuel cell. The cooling system comprises a hydrogen fuel cell, a circulating device, a cooling device and an electric heating pipe, wherein the hydrogen fuel cell, the circulating device and the cooling device are sequentially connected to form a cooling circulating loop; one end of the electric heating pipe I communicates with the circulating device through a pipeline, the other end communicates with the hydrogen fuel cell through a pipeline, and a heating circulating loop is formed. The temperature of a coolant entering the hydrogen fuel cell can be controlled within the best reaction temperature range accurately and more stably, so that the hydrogen fuel cell is located in a proper reaction temperature environment, and the reaction efficiency of the hydrogen fuel cell is improved; the cooling system is simple in structure, has an obvious effect and saves energy.

A SOFC type fuel cell being small in size and large in output while providing good efficiency and being excellent in starting characteristics and load variation characteristics, is presented. A honeycomb type solid-oxide fuel cell is formed of a honeycomb structural body having square cell in cross section, wherein cells adjacent to wall surfaces constituting a fuel pole cell (a) function as air pole cells (b) and cells adjacent to the corners of wall surfaces of the fuel pole cell and adjacent to wall surfaces constituting air pole cell function as cooling air cells (c), whereby fuel pole cells, air pole cells and cooling air cells are arranged in longitudinal and lateral rows so that cells of the same type appear in every other location.

This invention relates to a discoloration indicator for checking the life span of a desulfurization adsorbent, and a desulfurization reactor and a desulfurization system including the same, and specifically, to a discoloration indicator for checking the life span of a desulfurization adsorbent able to effectively adsorb and remove organic sulfur compounds from fossil fuels, including natural gas or LPG containing the organic sulfur compound, and to a desulfurization reactor and a desulfurization system including the same. This invention makes it possible to remove the organic sulfur compound using the desulfurization adsorbent and to check the replacement time of the adsorbent with the naked eye or using an electrical signal, and thus may be applied to the treatment of natural gas or LPG requiring desulfurization, and also to hydrogen generators for home fuel cell generation systems or distributed fuel cell generation systems requiring that devices be simple, or requiring unmanned operation.

The invention belongs to a high energy power supply technology and provides an integrated combined power supply of a metal oxygen cell / hydrogen-oxygen fuel cell, in order to solve the problems of corrosion and hydrogen evolution of an anode of the metal oxygen cell and enhance the energy utilization ratio. The integrated combined power supply of the metal oxygen cell / hydrogen-oxygen fuel cell is characterized by comprising two parts, including a main power supply metal oxygen cell and a hydrogen-oxygen fuel cell. The integrated combined power supply sequentially consists of a metal anode, an electrolyte cavity, a hydrogen-oxygen fuel cell anode, a diaphragm, a cathode and a cathode cavity, and a structure that two kinds of cell cathodes are integrated into a whole and two kinds of cell anodes share a same cell cavity is adopted. When the combined power supply generates power, a hydrogen by-product of the metal oxygen cell is directly used as fuel of the hydrogen-oxygen fuel cell, and therefore, the hydrogen by-product of the metal oxygen cell is eliminated in situ, and a part of energy can be recovered. Compared with the prior art, the invention has the advantages of simple structure and convenient use and maintenance and is suitable for an emergency power supply and an underwater power supply which need high energy.

The invention relates to a proton exchange membrane fuel cell unit and a cell stack, belonging to the technical field of hydrogen fuel cells. The battery unit is composed of hydrogen distributor, negative electrode flow field plate, membrane module MEA, positive electrode flow field plate and oxygen distributor. The hydrogen inlet and outlet are connected with the hydrogen inlet and outlet of negative electrode flow field plate respectively. The oxygen inlet and outlet are connected with the oxygen inlet and outlet of positive electrode flow field plate respectively. As that battery unit of the invention has independent hydrogen and oxygen supply port, the bipolar plate in the prior art is canceled, and the heat dissipation is replace by the liquid cooling circulation in the original structure through the external heat dissipation device, thereby avoiding the risk of the coolant leaking inside the battery, and at the same time, the gas quantity of each battery unit can be timely controlled, so as to ensure that the battery is not invalidated due to the anti-polar reaction. The series welding structure of the positive and negative electrodes of the battery cell is adopted to reducethe series resistance and improve the power characteristics. Greatly reducing manufacturing costs; Simplified manufacturing and assembly process facilitates large-scale production.

The invention discloses a hydrogen fuel cell system and a control method thereof. The control method comprises the following steps: performing hydrolysis to produce hydrogen by utilizing a reaction solution, controlling the reaction pressure and temperature of a reaction chamber, the temperature of a radiator and the pressure of a hydrogen storage chamber by a controller, and controlling the solution amount of the reaction solution. The method is a safe, high-efficiency and high-practicality hydrogen production technology. The hydrogen production fuel cell disclosed by the invention is short in start and load response time and high in reliability, can perform integrated control on temperature, humidity, pressure, catalyst contact conditions, solution supply, power regulation and other processes and parameters, and a gas source with controllable pressure and flow can be provided for the fuel cell. The reaction solution is injected into a tubular reactor filled with catalysts by adopting a hydraulic pump, and the hydrogen production speed is controlled by controlling the flow velocity of the reaction solution; change of hydrogen demand quantity is quickly responded, and accurate control of the output hydrogen flow and intelligent control of system parameters can be realized.

The invention discloses an independent power supply system of hydrogen fuel cell. The system comprises a closed shell, a display and a three-layered metal frame; a hydrogen fuel cell galvanic stack, a hydrogen storage bottle and a radiator fan are arranged at the bottom layer of the three-layered metal frame; an inverter and a gas passage control element are arranged at the middle layer of the three-layered metal frame; the inverter is electrically connected with the gas passage control element; a DC / DC (direct current / direct current) converter, a controller and a storage battery are arranged on the upper layer of the there-layered metal frame; the storage battery is electrically connected with the inverter, the DC / DC converter and the controller respectively; and the controller is electrically connected with the display, the radiator fan and the air passage control element respectively. The independent power supply system of the hydrogen fuel cell provided by the invention can overcome the defects that in the prior art, the structure is unreasonable, the thermal radiation is large, the specific power is low, the air supply is single, the carrying is inconvenient and the like, and realize the advantages of reasonable structure, small thermal radiation, high specific power, much air supply and convenience in operation.

The invention relates to a heat exchanger (100) that is intended to operate at the outlet of a hot fuel cell that supplies the exchanger with oxidizing and fuel gases, said heat exchanger comprising: a first oxidizing gas flow circuit (111); a second fuel gas flow circuit (112); a pre-mixing chamber (142) supplied with fuel gases from at least the second circuit and moreover supplied with oxidizing gases; a combustion chamber (140) supplied with the gas mixture from the pre-mixing chamber and moreover supplied with oxidizing gases from the first circuit; and a flue gas flow circuit (114) that receives the flue gases coming from the combustion chamber. The first oxidizing gas flow circuit, the second fuel gas flow circuit, the combustion chamber, and the flue gas flow circuit are submerged in a single heat transfer fluid.