9 results about "Solid oxygen" patented technology

This invention discloses a lead-based fast reactor control technology for nuclear power plants, specifically a electrically powered solid oxygen control and regulation system for a lead-based fast reactor, comprising: a liquid lead-bismuth flow pipeline, a solid oxygen source replenishment device, and a liquid level control system. The liquid lead-bismuth flow pipeline includes: a loop inflow pipeline, a loop pipeline expansion bend, a vertical pipeline dissolution chamber, a loop outflow pipeline, a charging tank isolation chamber, and an electric valve. The solid oxygen source replenishment device includes: a motor, a fixed flange, a screw sleeve, a threaded connection structure, a screw, ribs, an upper orifice plate of the charging tank, a charging tank, a lower orifice plate of the charging tank, a locking hole on the upper orifice plate of the charging tank, alumina spheres, lead oxide ceramic spheres, and a charging tank isolation chamber. The liquid lead-bismuth in the liquid lead-bismuth flow pipeline sequentially passes through the loop inflow pipeline, the loop pipeline expansion bend, and the vertical pipeline dissolution chamber, then exchanges oxygen ions with the charging tank before entering the downstream system through the loop outflow pipeline, thus achieving solid oxygen control and oxygen ion exchange.

The utility model relates to an air respirator with auxiliary oxygen supply function, which comprises a compressed air supply system, a solid oxygen auxiliary supply system, a mask assembly and a back support assembly. The compressed air supply system comprises a compressed air cylinder, a compressed air pressure reducing valve, a compressed air supply pipeline, a pressure alarm device and an air supply valve. The solid oxygen auxiliary supply system comprises a solid oxygen generator assembly, an oxygen supply pipeline and an oxygen supply valve. The mask assembly comprises a transparent full mask, a half mask nested on the inner side of the full mask and two quick plug-in interfaces for independently connecting the air supply valve and the oxygen supply valve. The back support assembly comprises a shoulder strap, a waist belt and a back plate. The air respirator with auxiliary oxygen supply function can provide emergency oxygen in time after the positive pressure air respirator runs out of air, which is used for the escape of rescue and emergency personnel.

The invention discloses a piezoelectric igniter of a solid oxygen generator. The piezoelectric igniter comprises a solid oxygen generating device and a piezoelectric ignition device, the piezoelectric ignition device comprises a shell, a piezoelectric module and an ignition module, the piezoelectric module comprises a piezoelectric button and a piezoelectric ceramic piece; the ignition module comprises a first electrode and a second electrode; the first electrode is electrically connected with the first electrode end of the piezoelectric ceramic piece and is electrically connected with the first electric connecting part of the solid oxygen generating device; and the second electrode is electrically connected with the second electrode end of the piezoelectric ceramic piece and is electrically connected with the second electric connection part of the solid oxygen generating device. According to the device, piezoelectric pulses are efficiently coupled to the solid oxygen generating device through an end short-path closed loop, ignition consistency and starting reliability are improved, energy loss is reduced, and an external power source is not needed. And the coaxial electrode and the end face are insulated and isolated, shielding failure and creepage are inhibited, and the electrical safety and the environmental adaptability are enhanced.

The invention relates to a marine nuclear waste heat driven compact water and oxygen making system and a control method, and the system comprises a water making unit which comprises a multi-effect evaporator connected to a nuclear energy secondary loop system, the multi-effect evaporator heats seawater to generate steam and condenses the steam into fresh water, and the multi-effect evaporator is connected with a purification device for purifying the fresh water; the oxygen generation unit comprises a solid oxygen candle oxygen generation module and an electrolyzed water oxygen generation module, the solid oxygen candle oxygen generation module takes sodium chlorate as an oxygen source and generates oxygen through a thermal decomposition reaction, and pure water purified by the electrolyzed water oxygen generation module generates oxygen through electrolyzed water; and the control unit dynamically controls the pure water produced by the water production unit to the oxygen production unit according to the ship operation working condition, the oxygen demand and the electrical load, and controls the start and stop and the oxygen production of the solid oxygen candle oxygen production module and the electrolyzed water oxygen production module. The oxygen generation mode can be switched according to the operation state of the nuclear energy ship, the solid oxygen candle oxygen generation module is preferentially used for generating oxygen when power is insufficient, and when power is sufficient, the solid oxygen candle oxygen generation module and the solid oxygen candle oxygen generation module are used simultaneously to better meet different navigation requirements.

The utility model relates to an automatic oxygen supply device which comprises a cabinet body and an oxygen generator. The oxygen generator is arranged in the cabinet body and comprises a base and a medicine cylinder, the base is fixedly arranged in the cabinet body and provided with a conductive terminal, the medicine cylinder comprises an outer cylinder, an inner cylinder, a resistance wire and a heat insulation sleeve, the inner cylinder is arranged in the outer cylinder, and the resistance wire is arranged in the heat insulation sleeve. The bottom of the inner cylinder is provided with a terminal socket electrically connected with the conductive terminal, the heat insulation sleeve is arranged in the inner cylinder, a cavity used for containing solid oxygen powder is formed in the heat insulation sleeve, the resistance wire is arranged in the cavity and electrically connected with the terminal socket, the side end of the inner cylinder is provided with an air hole, and the air hole is communicated with the cavity. And an air outlet hole is formed in the top of the outer cylinder. According to the automatic oxygen supply device, heat dissipation of the oxygen generator can be reduced, the phenomenon that electric appliance elements in the automatic oxygen supply device are overheated and damaged due to heat dissipation is avoided, and the service life of the automatic oxygen supply device is effectively prolonged.

The invention discloses a method for preparing a hydrogen-corrosion-resistant chloride-ion-abrasion-resistant passive film layer based on CO2 one-step in-situ oxygen-carbonization and application, and belongs to the technical field of metal corrosion and protection. The method comprises the following steps of: decontaminating, grinding, polishing and drying Ti, Cr, Zr, Al or an alloy base material thereof, putting the Ti, Cr, Zr, Al or the alloy base material thereof into a reaction cavity, taking CO2 gas as an oxygen-carbonization main component, and optionally combining the CO2 gas with air or a solid oxygen supply body NiO to form an oxygen-carbonization system; and the CO2 gauge pressure is controlled to be 0-8.0 MPa, the temperature is 250-750 DEG C, heat preservation is conducted for 3-8 h, and a passive film layer is generated on the surface of the base material through the one-step in-situ oxygen-carbonization reaction. The film layer has excellent hydrogen corrosion resistance and chloride ion abrasion resistance, the preparation method is green and environment-friendly, the preparation process is simple and efficient, and the technology is mature and reliable.

The invention relates to an integrated method for the thermal conversion and indirect combustion of a heavy hydrocarbon feedstock in a redox chemical cycle for the production of hydrocarbon streams. The heavy hydrocarbon feedstock (1) is brought into contact with inert particles (2) in a thermal conversion zone (100). The thermal conversion, in the absence of hydrogen, water vapor, and a catalyst, produces a first gaseous effluent of hydrocarbon compounds (4) and coke, which is deposited onto the inert particles (5). These particles are subsequently burned in a redox chemical cycle (200) in the presence of solid oxygen-carrying particles (6). In this way, the inert particles flow between the thermal conversion zone (100) and a reduction zone (300) of the chemical cycle, while the solid oxygen-carrying particles flow between the oxidation (400) and reduction (300) zones of the same cycle.

A method for extracting metal and oxygen from powdered metal oxides in electrolytic cell is proposed, the electrolytic cell comprising a container, a cathode, an anode and an oxygen-ion-conducting membrane, the method comprising providing a solid oxygen ion conducting electrolyte powder into a container, providing a feedstock comprising at least one metal oxide in powdered form into the container, applying an electric potential across the cathode and the anode, the cathode being in communication with the electrolyte powder and the anode being in communication with the membrane in communication with the electrolyte powder, such that at least one respective metallic species of the at least one metal oxide is reduced at the cathode and oxygen is oxidized at the anode to form molecular oxygen, wherein the potential across the cathode and the anode is greater than the dissociation potential of the at least one metal oxide and less than the dissociation potential of the solid electrolyte powder and the membrane.

The invention belongs to the technical field of liquid metal coolants, and particularly relates to a lead-based liquid metal solid oxygen control device and method. The lower end of the outer cylinder is connected with the inlet connecting pipe through the flow dividing cavity, the flow dividing cavity is of an inverted-cone-shaped structure, a lower flange is arranged at the upper end of the outer cylinder, a plurality of positioning bosses are arranged on the lower surface of the lower flange, the upper end of the outer sleeve is fixedly connected with the positioning bosses, and the bottom of the outer sleeve is of an integral sealing plate type. Fixed connection is realized through a bottom sealing plate; the outer sleeve is of an annular pipe structure, and the inner sleeve is arranged in the outer sleeve. According to the method, the PbO particles can be rapidly replaced, falling PbO particle fragments are prevented from flowing into a system to become impurities while it is guaranteed that the PbO particles are fully dissolved in the liquid metal, and the method can be applied to solid-state efficient oxygen removal of the lead-based liquid metal.