4 results about "Helium cylinder" patented technology

This invention provides a CO2 dynamic dissolution testing device. The device includes: a core holder, a vacuum system, a confining pressure system, a back pressure system, a fluid supply system, a nuclear magnetic resonance (NMR) testing system, a sensor system, and a temperature control system. The fluid supply system includes a CO2 gas supply component, a formation water supply component, a saturated carbon dioxide formation water supply component, and a helium supply component. The helium supply component includes a helium cylinder and a standard gas chamber, with the gas outlet of the helium cylinder connected to the inlet of the standard gas chamber. The CO2 gas supply component, formation water supply component, saturated carbon dioxide formation water supply component, and standard gas chamber are each connected to the fluid inlet of the core holder. The sensor system includes a pressure sensor group, comprising a pressure sensor for acquiring the pressure at the fluid inlet of the core holder, a pressure sensor for acquiring the pressure at the fluid outlet of the core holder, and a pressure sensor for acquiring the pressure of the standard gas chamber.

This invention relates to the technical field of uranium-containing fluids, and more particularly to a device and method for simulating the transport of uranium-containing fluids under oxygen-deficient conditions. The reaction mechanism includes a U-shaped glass tube placed vertically, with an outlet on the top right and an inlet on the bottom left of the tube, and a rubber stopper at the top opening. A supply mechanism includes a helium cylinder located on the left side of the U-shaped glass tube, with a pressure-reducing valve installed at its outlet. The outlet of the pressure-reducing valve is connected to a filling gun, the other end of which can be quickly connected to the inlet. By laying sandstone strata inside the U-shaped glass tube and using a helium oxygen-removal method to create an oxygen-deficient atmosphere, the transport scenario of uranium-containing fluids under real geological conditions can be highly replicated. Combined with a thermal insulation jacket and temperature controller for precise temperature control, the experimental results are closer to natural geological processes, providing reliable data support for the study of uranium transport mechanisms.

This invention discloses a rapid precooling system and method for a liquid hydrogen refueling station, belonging to the field of liquid hydrogen technology. The precooling system includes a liquid hydrogen refueling pipeline, a liquid hydrogen supply tank, a valve subsystem, a liquid hydrogen refueling tank, a circulation pipeline, a condenser, a gas-liquid separator, a liquid carbon dioxide tank, a storage cylinder, a helium pipeline, a high-pressure helium cylinder, a fuel cell, a cryogenic hydrogen pipeline, and a liquid hydrogen storage tank group. This system utilizes liquid carbon dioxide and cryogenic helium to achieve deep coupling between system displacement and precooling operations. After displacement, the system temperature has dropped below the temperature of liquid carbon dioxide, significantly reducing precooling time. It also utilizes cryogenic hydrogen stored in the liquid hydrogen storage tank group to liquefy carbon dioxide, achieving carbon dioxide medium circulation. Simultaneously, the hydrogen released after cooling and the hydrogen generated during precooling are transported to the fuel cell for power generation, improving hydrogen utilization efficiency.

The utility model discloses an unmanned aerial charging and battery replacing helium balloon base station, including pesticide unmanned plane, helium balloon, the operation and maintenance platform that suspends in helium balloon below and ground equipment, be provided with unmanned aerial vehicle battery storage machine cabinet, mechanical arm module, battery replacing platform and total power supply on the operation and maintenance platform, be provided with a plurality of slot for depositing unmanned aerial vehicle battery one and charging unmanned aerial vehicle battery one in unmanned aerial vehicle battery storage machine cabinet, pesticide unmanned plane lands on battery replacing platform, and mechanical arm module is used for replacing operation to unmanned aerial vehicle battery one in the battery groove of pesticide unmanned plane, ground equipment includes helium bottle and winding device, and helium bottle is connected through the air pipe with helium balloon, and the rope on winding device is connected with operation and maintenance platform, and operation and maintenance platform is connected with helium balloon, the utility model solves the present unmanned plane and needs frequent return to ground fixed type charging base station and charges or replaces battery, leads to the whole operation efficiency decline and the problem such as high construction cost of fixed type charging base station.