WO2016127527A1 - 热交换系统和核反应堆系统 - Google Patents
热交换系统和核反应堆系统 Download PDFInfo
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- WO2016127527A1 WO2016127527A1 PCT/CN2015/080653 CN2015080653W WO2016127527A1 WO 2016127527 A1 WO2016127527 A1 WO 2016127527A1 CN 2015080653 W CN2015080653 W CN 2015080653W WO 2016127527 A1 WO2016127527 A1 WO 2016127527A1
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- WIPO (PCT)
- Prior art keywords
- steam
- heat exchange
- nuclear reactor
- heat
- circuit
- Prior art date
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/14—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from headers; from joints in ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/023—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers with heating tubes, for nuclear reactors as far as they are not classified, according to a specified heating fluid, in another group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/16—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
- F22B1/162—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour in combination with a nuclear installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
- F22B37/268—Steam-separating arrangements specially adapted for steam generators of nuclear power plants
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C1/00—Reactor types
- G21C1/04—Thermal reactors ; Epithermal reactors
- G21C1/06—Heterogeneous reactors, i.e. in which fuel and moderator are separated
- G21C1/08—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor
- G21C1/084—Boiling water reactors
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C1/00—Reactor types
- G21C1/30—Subcritical reactors ; Experimental reactors other than swimming-pool reactors or zero-energy reactors
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/16—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants comprising means for separating liquid and steam
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/42—Reprocessing of irradiated fuel
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/006—Details of nuclear power plant primary side of steam generators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Definitions
- the present invention relates to a heat exchange system and a nuclear reactor system.
- Nuclear reactor systems typically use liquid metal as the cooling medium.
- a heat exchange system comprising: a heating device; a heat consuming device, the heat consuming device and the heating device are connected by a pipe to form a circuit; and steam, which is in a wet steam before being supplied to the heat source The state is supplied to the heat consuming device by heat exchange with the heating device to become dry steam or superheated steam.
- the heat exchange system further includes: a steam-water separation device disposed in the circuit downstream of the steam outlet of the heating device for separating the output from the heating device Liquid water in the steam.
- the heat exchange system further comprises: a humidity control device disposed in the circuit upstream of a steam inlet of the heating device for controlling the humidity of the steam.
- the heat exchange system further comprises: a temperature control device disposed in the circuit upstream of the humidity control device for controlling the temperature of the steam.
- the heat exchange system further comprises: a pressure control device disposed in the circuit upstream of the temperature control device for controlling the pressure of the steam.
- the heat consuming device is a heat exchanger or a power generation system.
- the steam is formed from heavy water.
- a steam inlet of the heating device is disposed on a lower side of the heating device, and a steam outlet of the heating device is disposed on an upper side of the heating device, and the steam-water separation device is disposed at Above the steam outlet.
- a nuclear reactor system comprising: a nuclear reactor; a heat consuming device, a heat consuming device and a nuclear reactor connected by a pipeline to form a loop; and steam, which is wet steam before being supplied to the nuclear reactor State, and supply heat to the consumer after heat exchange with the nuclear reactor into dry steam or superheated steam.
- the nuclear reactor system further includes: a steam-water separation device disposed in the circuit downstream of a steam outlet of the nuclear reactor for separating steam output from the nuclear reactor Liquid water.
- water vapor as a cooling medium has the advantages of large heat capacity, low pressure system, non-corrosive, off-line processing, and the like.
- This kind of water vapor cooling medium cooled fission reactor can operate safely and reliably at high power density.
- FIG. 1 is a schematic diagram of a nuclear energy system in accordance with an embodiment of the present invention.
- Figure 2 is a schematic illustration of a nuclear reactor system in accordance with a first embodiment of the present invention
- Figure 3 is a schematic illustration of a nuclear reactor system in accordance with a second embodiment of the present invention.
- FIG. 4 is a schematic diagram of a reactor in accordance with an embodiment of the present invention.
- Figure 5 is a schematic illustration of a fuel cycle for production capacity in accordance with an embodiment of the present invention.
- FIG. 1 shows a schematic diagram of a nuclear energy system in accordance with an embodiment of the present invention.
- a nuclear energy system according to an exemplary embodiment of the present invention includes a nuclear reactor system 100 and a fuel circulation system 200.
- the nuclear energy system can be a fast neutron nuclear energy system.
- Nuclear reactor system 100 can be a fast neutron nuclear reactor system.
- FIG. 2 shows a schematic diagram of a nuclear reactor system in accordance with a first embodiment of the present invention
- FIG. 3 shows a schematic diagram of a nuclear reactor system in accordance with a second embodiment of the present invention.
- a nuclear reactor system 100 includes: a nuclear reactor 1 (an example of a heating device); a heat consuming device, a heat consuming device and a nuclear reactor 1 connected by a pipe to form a circuit 3; and steam,
- the steam is in a wet steam state before being supplied to the nuclear reactor 1, and is supplied to the heat consuming device by heat exchange with the nuclear reactor 1 to become dry steam or superheated steam.
- the heat consuming device may be the power generation system 7 shown in Fig. 2 or the heat exchanger 15 such as a steam generator shown in Fig. 3.
- the steam can be formed from heavy water.
- the nuclear reactor system 100 may further include: a steam-water separation device 6 disposed in the circuit 3 downstream of the steam outlet 101 of the nuclear reactor 1 for Liquid water, such as water droplets, in the steam output from the nuclear reactor 1 is separated.
- a steam-water separation device 6 disposed in the circuit 3 downstream of the steam outlet 101 of the nuclear reactor 1 for Liquid water, such as water droplets, in the steam output from the nuclear reactor 1 is separated.
- the nuclear reactor system 100 may further include: a humidity control device 12 disposed in the circuit 3 upstream of the steam inlet 102 of the nuclear reactor 1 for controlling the The humidity of the steam.
- the nuclear reactor system 100 may further include: a temperature control device 11 disposed in the circuit 3 upstream of the humidity control device 12 for controlling the location The temperature of the steam.
- the nuclear reactor system 100 may further include: a pressure control device 10 disposed in the circuit 3, upstream of the temperature control device 11, for controlling the The pressure of the steam.
- the steam inlet 102 of the nuclear reactor 1 is disposed on the lower side of the nuclear reactor 1, and the steam outlet 101 of the nuclear reactor 1 is disposed on the upper side of the nuclear reactor 1, and the steam-water separation device 6 may It is disposed above the steam outlet 101.
- the heat exchange system in nuclear reactor system 100 can convert heat into electrical energy in two ways.
- the first mode is a direct power generation mode in which the steam in the circuit 3 directly drives the steam turbine to generate electricity as shown in FIG. 2, and the second mode is that the heat exchange between the circuit 3 and the circuit 4 is first performed as shown in FIG.
- the steam in circuit 4 drives the indirect power generation of the turbine.
- the nuclear reactor system 100 includes steam moisture
- the steam-water separation device 6 may be located above the steam outlet 101 of the reactor 1 to separate the steam from the liquid droplets to prevent the liquid droplets from entering the steam turbine 7, causing damage to the blades of the steam turbine 7.
- the boiling water reactor steam-water separation device may be selected, but the nuclear reactor system 100 may not Including the steam-water separation device 6, the nuclear reactor system can generate steam with high dryness; downstream of the steam-water separation device 6, a plurality of steam turbines 7 can be arranged as needed to form a steam turbine unit, and the steam turbine group can drive the generator set to generate electricity, which can be used at present Medium and low pressure steam turbines commonly used in reactor systems.
- the steam replenishment system 8 is mainly used to supplement the steam in the circuit to ensure the normal operation of the circuit.
- the function of the radioactive pollutant treatment system 9 is to treat pollutants such as impurities and radioactive vapors.
- the pressure control device 10 functions to control the vapor pressure of the steam inlet 102 of the reactor 1, and the pressure control device 10 can be controlled by a high pressure boiler.
- the temperature control device 11 is mainly used to adjust the steam temperature of the steam inlet 102 of the reactor 1, and the inside of the temperature control device 11 can adopt a tube bundle heating structure;
- the function of the humidity control device 12 is to adjust the steam humidity of the steam inlet 102 of the reactor 1,
- the function of the control valve 13 is to control the steam flow according to the pressure and temperature of the steam, and an induction high-pressure high-temperature control valve can be used.
- the direct heat exchange system is mainly composed of the reactor 1 and the circuit 3. Its main function is to transfer the heat in the reactor 1 to the wet steam through heat exchange, and the wet steam is heat-exchanged to become dry steam or superheated steam. .
- the steam heated by the heat enters the power generation system in the circuit 3, and directly drives the steam turbine 7 to generate electricity.
- the cooling steam generated after power generation may first enter the radioactive pollutant treatment system 9 for the treatment of neutron toxicity fission products, and the disposed steam may sequentially enter the pressure control device 10, the temperature control device 11 and the humidity control device 12. The steam pressure is adjusted, the temperature is adjusted, and the humidity is adjusted.
- the wet steam conforming to the standard enters the reactor 1 from the steam inlet 102 of the reactor 1, and enters the reactor inside the reactor 1 through the high temperature resistant high pressure pipeline.
- the core channel transfers the heat inside the reactor 1 to the wet steam by heat exchange, and the wet steam is converted into dry steam or superheated steam by temperature rise, phase change, and is led out from the top of the reactor 1 and enters the loop 3 again. If it is detected that the water vapor in the heat exchange system is insufficient, the adjustable steam supply system 8 supplements the steam in the circuit to ensure the normal operation of the circuit.
- the humidity of the wet steam in the circuit 3 may be 1% to 100%
- the working pressure may be 1 MPa to 12 MPa
- the working temperature may be 250 ° C to 950 ° C.
- Steam formed by light water can be used as the heat exchange medium in the circuit 3.
- the heat exchange system or nuclear reactor system 100 mainly includes a reactor 1, a circuit 3 and a circuit 4, specifically including a steam-water separation device 6, a steam turbine 7 for power generation, a steam replenishment system 8, and radioactive pollution.
- the steam generator 15 is a device for realizing the heat transfer between the circuit 3 and the circuit 4, which uses the dry steam of the heavy water in the circuit 3 or the superheated steam to heat the steam in the circuit 4, so that the steam in the circuit 4 becomes high-temperature steam, and the high-temperature steam is The circuit 4 pushes the steam turbine 7 to generate electricity.
- the heat-exchanged cooling steam in the circuit 3 first enters the radioactive pollutant treatment system 9 for the treatment of neutron toxicity fission products, and the disposed steam sequentially enters the pressure control device 10, the temperature control device 11, and the humidity control device 12
- the wet steam conforming to the standard after reforming of various parameters enters the reactor 1 from the steam inlet 102 below the reactor 1, and enters the reactor through the high temperature resistant high pressure pipeline.
- the core channel transfers the heat in the reactor to the wet steam by heat exchange, and the wet steam is converted into dry steam or superheated steam by temperature rise, phase change, and is led out from the top of the reactor 1 and enters the steam generator 15 again.
- the adjustable steam supply system 8 supplements the steam in the circuit 4 to ensure the normal operation of the circuit 4.
- the power generation system 7 is mainly composed of a plurality of medium and low pressure steam turbines 7, and its main function is to generate electricity by using high temperature steam under different pressures.
- steam formed by heavy water can be used as the heat exchange medium
- steam formed by light water can be used as the heat exchange medium.
- the nuclear reactor system can operate as a critical reactor system (as shown in the solid lines in Figures 2 and 3) or as a subcritical core or cladding driven by an external neutron source. Run (as shown in the solid and dashed lines in Figures 2 and 3).
- the wet steam as the reactor coolant is heated to about 200 degrees Celsius in the temperature control device 11, and the pressure in the pressure control device 10 is adjusted to 3-12 MP, and at 10-70 m/s.
- a spalling target 19 that generates a driving neutron source is passed through the reactor pressure vessel 20 and the core 21, which is inside the core 21 and has a closed structure to prevent spalling.
- the spalling medium in the target is in contact with the core coolant.
- the heat deposition generated by the spallation target 19 and the beam coupling is exchanged by the spalling target heat exchange system 14, and the loop 5 is independent of the loop 3 of the nuclear reactor system 100.
- no external drive is required, and the fission is self-sustained.
- the nuclear reactor 1 has a fuel rod 16.
- the reactor heat exchange medium wet steam enters the passage 17 in the reactor through the bottom inlet 102 of the reactor 1, exchanges heat therewith, removes heat, and cools the reactor.
- the principle of the fuel cycle system 200 is illustrated in Figure 5, which contains both processing and combustion of spent fuel (core material after reactor combustion).
- the spent fuel (or depleted uranium, natural uranium, thorium, etc.) produced in the nuclear reactor system is treated by a simple high-temperature dry process to remove neutron-toxic nuclides from spent fuel, and the remaining spent material is made into components and placed in a burner. (reactor) burning.
- the burner expands the fuel while reducing the MA content to form a new fuel, so many cycles. No excess radioactive waste is produced in the flow of the fuel cycle system, and capacity can be produced while the nuclear waste is metamorphosed and proliferated.
- the fuel cycle system 200 in accordance with an embodiment of the present invention excludes only about 50% of the fission products during spent fuel treatment, and the lanthanides remain in the fuel to continue combustion.
- the separation difficulty and cost are greatly reduced.
- the total amount of nuclear waste discharged is also greatly reduced ( ⁇ 4% of total spent fuel), and the radiotoxicity is greatly reduced (the content of MA is less than 0.1% of the original content of spent fuel).
- the internal heat exchange pressure of the reactor in the heat exchange system can be lower than that of the pure gas cooling system; and the relative purity of the pure water system, the wet steam as the cooling medium, the safety of the system and The controllability is higher; the fission reactor using the heat exchange medium of the embodiment of the invention is suitable for the fast neutron or ultrafast neutron spectrum, can meet the requirements of high power density, and can use uranium 235, strontium, uranium 238 Long-lived fission products, transuranic elements as nuclear fuel, and can be used for the metamorphosis of nuclear waste and isotope production.
- the wet steam according to the embodiment of the present invention is used as a cooling medium. Compared with the original single-phase medium, since the wet steam itself can undergo a phase change due to heat, the heat exchange effect can be better improved, and at the same time, the partial pressure can also be achieved. Adjustment to control heat transfer efficiency.
- a Brayton cycle can be combined with a Rankine cycle.
- the circuit 4 can adopt a standard water circuit, similar to the current pressurized water reactor circuit.
- the steam is a medium in which a gas and a liquid are simultaneously present in a specific space.
- the gaseous vapor also includes superheated steam.
- the vapor may have a density of from 1 g/m 3 to 80 g/m 3 .
- the core material may be a SiC composite.
- the water vapor cooling medium has the advantages of large heat capacity, low pressure system, non-corrosive, off-line processing, and the like. This kind of water vapor cooling medium cooled fission reactor can operate safely and reliably at high power density.
- the heat exchange system according to the invention can also be used for heat exchange between other heating devices and heat consumers.
Abstract
Description
Claims (10)
- 一种热交换系统,包括:加热装置;热量消耗装置,热量消耗装置与加热装置通过管道连接而形成回路;以及蒸汽,所述蒸汽在供给热源前处于湿蒸汽状态,并且通过与加热装置热交换成为干蒸汽或者过热蒸汽后供给热量消耗装置。
- 根据权利要求1所述的热交换系统,还包括:汽水分离装置,所述汽水分离装置设置在所述回路中、所述加热装置的蒸汽出口的下游,用于分离出从加热装置输出的蒸汽中的液态水。
- 根据权利要求1所述的热交换系统,还包括:湿度控制装置,所述湿度控制装置设置在所述回路中、加热装置的蒸汽入口的上游,用于控制所述蒸汽的湿度。
- 根据权利要求3所述的热交换系统,还包括:温度控制装置,所述温度控制装置设置在所述回路中、所述湿度控制装置的上游,用于控制所述蒸汽的温度。
- 根据权利要求4所述的热交换系统,还包括:压力控制装置,所述压力控制装置设置在所述回路中、所述温度控制装置的上游,用于控制所述蒸汽的压力。
- 根据权利要求1所述的热交换系统,其中:所述热量消耗装置是换热器或发电系统。
- 根据权利要求1所述的热交换系统,其中:所述蒸汽由重水形成。
- 根据权利要求2所述的热交换系统,其中:所述加热装置的蒸汽入口设置在所述加热装置的下侧,并且所述加热装置的蒸汽出口设置在所述加热装置的上侧,所述汽水分离装置设置在所述蒸汽出口的上方。
- 一种核反应堆系统,包括:核反应堆;热量消耗装置,热量消耗装置与核反应堆通过管道连接而形成回路;以及蒸汽,所述蒸汽在供给核反应堆前处于湿蒸汽状态,并且通过与核反应堆热交换成为干蒸汽或者过热蒸汽后供给热量消耗装置。
- 根据权利要求9所述的核反应堆系统,还包括:汽水分离装置,所述汽水分离装置设置在所述回路中、所述核反应堆的蒸汽出口的下游,用于分离出从核反应堆输出的蒸汽中的液态水。
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US15/128,007 US20170098483A1 (en) | 2015-02-13 | 2015-06-03 | Heat exchange system and nuclear reactor system |
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ES2873507T3 (es) * | 2016-05-19 | 2021-11-03 | European Spallation Source Eric | Método para proporcionar una fuente de neutrones |
US9907426B2 (en) * | 2016-05-20 | 2018-03-06 | Seattle Espresso Machine Corporation | Method for generation of superheated steam for the preparation of a beverage |
US10390654B2 (en) | 2016-05-20 | 2019-08-27 | Seattle Espresso Machine Corporation | Generation of superheated steam for the preparation of a beverage |
CN107146641A (zh) * | 2017-05-11 | 2017-09-08 | 中国科学院近代物理研究所 | 核能系统和控制核能系统的方法 |
CN111779576B (zh) * | 2020-07-13 | 2022-07-05 | 中国航空发动机研究院 | 一种组合式推进装置、系统及控制方法 |
GB202207761D0 (en) * | 2022-05-26 | 2022-07-13 | Egb Eng Consultants Ltd | A nuclear reactor cycle |
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- 2015-02-13 CN CN201510081166.5A patent/CN104751906A/zh active Pending
- 2015-06-03 WO PCT/CN2015/080653 patent/WO2016127527A1/zh active Application Filing
- 2015-06-03 US US15/128,007 patent/US20170098483A1/en not_active Abandoned
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US20170098483A1 (en) | 2017-04-06 |
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