4 results about "Subcritical reactor" patented technology

To provide a fusion-driven subcritical reactor that is more efficient and safer. [Solution] A fusion-driven subcritical reactor is a nuclear reactor that starts and operates by amplifying neutrons obtained from nuclear fusion and supplying the amplified neutrons to a reactor that holds subcritical nuclear fuel by external neutrons. It consists of a main neutron source that generates DD neutrons through a nuclear fusion reaction, a cascade member that surrounds the main neutron source, separates fusion / fission neutrons, multiplies the fast fission neutrons generated by nuclear fission, and slows down the fast fission neutrons, and a cascade member that surrounds the cascade member and is mainly made of thorium oxide ( 232 It is equipped with a subcritical main fission blanket made of uranium dioxide (ThO2), and a neutron flattening blanket that has a neutron source located around the outer periphery of the main fission blanket to improve the containment of fission neutrons.

An example for continuous removal of fission products from a molten-salt fueled nuclear reactor enclosed in a reactor containment may include separating actinides from other fission products flowing out of the reactor, returning the separated actinides back to the reactor to be consumed, and removing the other fission products out of the containment while the reactor is operating. In various embodiments, the reactor can be a critical reactor, a subcritical (e.g., accelerator-drive) reactor, or another type of reactor.

The application discloses a high-temperature lead-bismuth alloy experimental system with an additional heat storage device for heat preservation. The experimental system utilizes the heat generated by a subcritical reactor, adopts pressurized water as a heat transfer fluid of a secondary loop to exchange heat with a primary loop and carries out experiments. In the case that the system stops the experiments, liquid lead-bismuth alloy is pumped into a lead-bismuth alloy storage tank, and the heat stored by the heat storage device is used to heat the lead-bismuth alloy storage tank. The application solves the problems in the prior art by adding the heat storage device, such as the need of consuming a large amount of electric energy to install an electric auxiliary heating device on a lead-bismuth alloy pipeline to maintain the temperature of the lead-bismuth alloy pipeline. In addition, the application has the advantages of high energy utilization efficiency, no additional power consumption and the like. Meanwhile, the application can provide reliable and stable experimental support for the research and development of heat storage / exchange devices in compressed air energy storage systems and the like, and provide technical support for the clean, safe and efficient utilization of nuclear energy.

A device for treating organic waste by subcritical water pyrolysis, characterized by two parallel subcritical reactors, the upper surfaces of which are each connected to a feed opening that directs the organic waste material into the reactors. The two reactors are arranged to the left and right, with a support frame between them. The upper surface of this frame includes a pretreatment unit connected to the feed opening via piping. The pretreatment unit comprises a stirring chamber, the upper surface of which is connected to a filter via a flange. A pressure feed device containing a feed chamber is located on the top of the filter. The upper surface of the feed chamber is connected to a feed pipe, the lower part of which is connected to a corrugated pipe located inside the feed chamber.A pressure plate is attached to the end of the corrugated tube, and this plate has an opening corresponding to the tube's outlet. An electromagnetic valve is installed in this opening. A lifting device is mounted on the outside of the feed chamber, allowing the pressure plate to move vertically.