36 results about "Pool-type reactor" patented technology

The invention discloses a pool type heating reactor and a low-temperature nuclear heating system, relates to the technical field of nuclear reactors and aims to solve the technical problem that safety and reliability of the existing pool type heating reactorstill needs to be improved. The pool type heating reactor comprises a control rod driving mechanism cover body, wherein the bottom end of the control rod driving mechanism cover body is connected with the top end of a reactorcore shroud to form a sealed space for accommodating a control rod driving mechanism; the sealed space is filled with air or nitrogen; and the pressure of the air or the nitrogen is 4-6 atmospheric pressures.

The invention discloses a multi-pond type reactor. The reactor comprises a main container, an attached container, a connecting pipeline, a reactor core, a steam generator, a main pump and a neutron shielding body, wherein the main container is used for providing support and containing for the reactor core and the cooling agent thereof; the attached container is used for providing the support and the containing for the steam generator and the main pump and the cooling agent thereof; the main container is communicated with the attached container through the connecting pipeline; the neutron shielding body is installed between the main container and the attached container so as to provide the shielding for the steam generator and the main pump. The reactor disclosed by the invention has the advantages of being less in cooling agent loading quantity and simple in boundary, and the main circulating equipment in the reactor bears the low irradiation strength.

The invention relates to an inherent safety tube-pool type nuclear reactor for research. The cooling-water main pump and the after-heat deriving pump of the reactor are set at back of the main heat-exchanger and connected in parallel in the main circuit room. The after-heat heat-exchanger is fitted in the water pool of the reactor. The main circuit room is provided at upper part of the water pool and at the bottom of the main circuit room there is a pipeline communicated to the under-water part of the water pool. At the inlet and the outlet of the reactor core is respectively provided with a hydraulic control open-close valve communicated with the water pool of the reactor. When the main pipeline occurs water-loss fault, water in the main circuit room can return to the water pool. At same time, as the pressure in the reactor container is low, the hydraulic control open-close valves at inlet and outlet of the reactor core automatically opens. When the after-heat deriving pump occurs fault, the inlet-outlet hydraulic control open-close valve is opened by a signal of high reactor-core temperature to make the reactor core and the water pool form a natural circulation to derive the after heat of reactor core into the water pool of the reactor.

The invention discloses a method for automatically producing nuclear energy for long term under any power. The method comprises the following steps of: in a high-boiling point heating medium deep-tank type reactor which runs under the normal pressure, generating a natural cycle with a temperature difference of a high-boiling point heating medium between an ascending flow passage and a descending flow passage in the deep-tank type reactor; making the high-boiling point heating medium transversely flow by an annular pebble bed reactor in the high-boiling point heating medium deep-tank type reactor with the natural cycle; making the high-boiling point heating medium pass through an open heat exchanger in the heating medium deep-tank reactor with the natural cycle; totally transferring fission produced by the reactor to a secondary high-boiling point heating medium; not arranging control-compensation rod bundles in the high-boiling point heating medium deep-tank type reactor; under the function of a negative temperature coefficient of the reactor per se and along with demands on external loads, ending a life cycle of the reactor from the starting to running of the reactor; and during the long-time natural cycle, making the secondary high-boiling point heating medium enter an energy-utilization factory through a group of double-protection valves so as to directly utilize high-temperature heat energy or generate electricity.

The invention discloses a temperature-triggered passive accident residual heat removal system for a pool type reactor. The system consists of a direct reactor core cooling system and an auxiliary reactor safety container cooling system. The system has the significant advantage that the direct reactor core cooling system and the auxiliary reactor safety container cooling system share one air cooling system, so that the system design of the reactor is greatly simplified, and the construction cost is saved. The auxiliary reactor safety container cooling system realizes natural cooling through ambient air on the outer side of a safety container, and the process has the characteristic of passiveness. The passive accident residual heat removal system is passive, independent, high in efficiency and high in reliability and meets the safety design requirement for the pool type reactor.

The invention discloses a gas lift-based liquid metal cooling pool-type reactor multifunctional reactor internal thermal separation system. According to the gas lift-based liquid metal cooling pool-type reactor multifunctional reactor internal thermal separation system, when a reactor is at normal operation conditions, a thermal separation valve is opened, an auxiliary heating valve is closed, a gas filter and a gas compressor are turned on, and thermal separation effect is realized by the gas lift-based liquid metal cooling pool-type reactor multifunctional reactor internal thermal separation system; when the reactor is at low-power running or shutdown condition, the auxiliary heating valve is opened, the thermal separation valve is closed, the gas filter, a gas heater, and the gas compressor are turned on, and auxiliary heating effect is realized by the gas lift-based liquid metal cooling pool-type reactor multifunctional reactor internal thermal separation system The gas lift-based liquid metal cooling pool-type reactor multifunctional reactor internal thermal separation system is simple in structure; activation is convenient; cold and hot pool separation and reactor internal cooling agent auxiliary heating of liquid metal cooling pool-type reactors can be realized at the same time; the complexity of reactor system structure is reduced effectively; reactor economical efficiency and security are increased; application range of the gas lift-based liquid metal cooling pool-type reactor multifunctional reactor internal thermal separation system is wide; the gas lift-based liquid metal cooling pool-type reactor multifunctional reactor internal thermal separation system is suitable for both liquid metal cooling pool-type reactors with forced circulation, and liquid metal cooling pool-type reactors with natural circulation.

The invention discloses an auxiliary heating system for a liquid-metal-cooled natural circulation reactor. The auxiliary heating system comprises a nitrogen storage tank (1), a filter (2), a gas heater (3), a hot nitrogen input pipe (4), a main container (5), a safety container (6), gas extractors (7), pipelines and valves, wherein the pipelines and the valves are used for interconnecting devices. The system has the advantages that the function that a liquid-metal coolant in a liquid metal pool type reactor is subjected to auxiliary heating from the outside of the main container of the reactor is realized, the system is simple in structure, components in the reactor are not required for being added or started during operation, so that liquid metal in the main container can form micro natural circulation after the operation of the system, and meanwhile, the reliability and safety of the reactor can be effectively improved.