4results about How to "Guaranteed activation effect" patented technology

The present application provides an online activation system, method and vehicle for a fuel cell, and relates to the field of fuel cell technology. The system includes: a bidirectional DC converter, a fuel cell, and vehicle equipment, and the vehicle equipment includes: a power battery and electrical equipment on the vehicle; a hydrogen control valve is provided on the hydrogen intake pipe of the fuel cell, a hydrogen circulation pump and a hydrogen-water separator are provided on the hydrogen circulation pipe of the fuel cell, and the hydrogen circulation pipe is connected to the hydrogen intake pipe; an air control valve, an air compressor, an intercooler and a first humidifier are provided on the air intake pipe of the fuel cell, an air-water separator, a three-way valve and a second humidifier are provided on the air circulation pipe of the fuel cell, and the air circulation pipe is connected to the air intake pipe, and the connection position of the air circulation pipe and the air intake pipe is located between the air control valve and the air compressor. Through the system of the present application, the on-board fuel cell can be automatically activated by multi-cycle hydrogen pump and high-power activation when the whole vehicle is running.

The invention provides a bonding method of a polyurethane adhesive for organic glass. According to the method, polishing and cleaning, prime coat coating, bonding and curing conditions of a bonding base material are stipulated; meanwhile, the invention further provides a tensile shear strength sample of the polyurethane adhesive for the organic glass, the sample adopts a structure with a steel sheet bottom plate and a compensation cushion block, the test failure caused by the fact that the organic glass sample is damaged before the adhesive layer is damaged is prevented, and further, the tensile shear strength of the polyurethane adhesive for the organic glass is further improved. The loading force line and the center line of the sample are kept consistent through size design, so that the sample is only subjected to shearing force in the stretching process, and the test accuracy is improved; the method is suitable for gluing between the organic glass and the composite material, between the organic glass and the organic glass and preparation of a tensile shear strength sample of the polyurethane adhesive for the organic glass.

This utility model relates to the field of activated carbon production technology and discloses a processing device for preparing activated carbon from coconut shells. The device includes an activation chamber, a crushing chamber fixedly installed on the top of the activation chamber, a feed inlet on the top side wall of the crushing chamber, and a drive motor fixedly installed on the top outer wall of the crushing chamber. A dispersion component is installed inside the activation chamber. By using the dispersion component, starting the servo motor and air pump, the mixture of activator and air entering the rotating drum can be blown into the activation chamber through the air inlet. Guided by the surface of the spiral blades, the airflow entering the activation chamber travels in a spiral shape towards the center of the activation chamber. This allows the mixture of activator and air to be dispersed to various areas, ensuring sufficient contact with the coconut shell powder and guaranteeing the activation effect of the coconut shell powder, thereby ensuring the processing effect of activated carbon prepared from the coconut shell powder.

The invention provides a fuel cell stack performance self-recovery control method and system and a vehicle, and relates to the technical field of fuel cells, and the method comprises the steps: obtaining the membrane resistance of each single cell in a fuel cell; and judging the proportion of the number of the single cells of which the membrane resistance is greater than the resistance threshold in the total number, judging whether the fuel cell is in a normal operation state according to the proportion, and executing preset operation on the fuel cell according to a judgment result. The normal operation state of the fuel cell can be ensured.