CN111946487A - Nuclear driving Stirling device - Google Patents
Nuclear driving Stirling device Download PDFInfo
- Publication number
- CN111946487A CN111946487A CN202010877783.7A CN202010877783A CN111946487A CN 111946487 A CN111946487 A CN 111946487A CN 202010877783 A CN202010877783 A CN 202010877783A CN 111946487 A CN111946487 A CN 111946487A
- Authority
- CN
- China
- Prior art keywords
- nuclear
- nuclear fuel
- fuel block
- heat pipe
- stirling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003758 nuclear fuel Substances 0.000 claims abstract description 28
- 230000009257 reactivity Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000004992 fission Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- 239000000306 component Substances 0.000 description 4
- 229910052770 Uranium Inorganic materials 0.000 description 3
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052778 Plutonium Inorganic materials 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
- F02G1/055—Heaters or coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2254/00—Heat inputs
- F02G2254/90—Heat inputs by radioactivity
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention aims to disclose a nuclear driving Stirling device, which comprises a safety cylinder, wherein a nuclear fuel block is arranged in the safety cylinder, a plurality of through heat pipes are arranged in the nuclear fuel block, one end of each heat pipe is connected with a Stirling generator, and a control ring for controlling reactivity and radioactivity is wrapped outside the nuclear fuel block; compared with the prior art, the nuclear power generation technology is adopted, namely the nuclear fuel block replaces the fuel assembly reactor core of a pressurized water reactor, the heat pipe penetrating through the nuclear fuel block replaces water, the Stirling generator driven by heat transferred by the heat pipe generates power, the size is small, the structure is simple, the reliability is high, a new power source selection is provided for ground/underwater/vehicle-mounted/communication base stations, communication satellites and the like, and the purpose of the invention is realized.
Description
Technical Field
The invention relates to a Stirling power generation device, in particular to a nuclear driving Stirling device for driving a Stirling generator to generate power through nuclear fission heat.
Background
Small nuclear power plants are the focus of international nuclear technology competition for the next 20 years.
The traditional large nuclear power station adopts a pressurized water reactor technology and drives steam Brayton cycle power generation through nuclear fission. The small nuclear power device is required to be small in size, highly modularized, and movable and highly reliable, so that the nuclear power device is required to be innovative in design, extremely optimized and simplified, and new challenges are brought.
In recent years, heat pipe and stirling generator technologies have matured.
Therefore, there is a particular need for a nuclear driven stirling device which addresses the above-identified existing problems.
Disclosure of Invention
The invention aims to provide a nuclear-driven Stirling device, which aims at overcoming the defects of the prior art, promotes the comprehensive utilization of nuclear energy and provides safe, clean, reliable and economic electric power.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a nuclear-driven Stirling device is characterized by comprising a safety cylinder, wherein a nuclear fuel block is arranged in the safety cylinder, a plurality of through heat pipes are arranged in the nuclear fuel block, one end of each heat pipe is connected with a Stirling generator, and a control ring for controlling reactivity and radioactivity is wrapped outside the nuclear fuel block.
In one embodiment of the invention, the heat pipe is a capillary wicking heat pipe.
In one embodiment of the invention, the control ring is disposed coaxially with the nuclear fuel piece.
In one embodiment of the invention, the safety cylinder is further provided with a power interface and an access opening.
Compared with the prior art, the nuclear-driven Stirling device adopts a new nuclear power generation technology, namely, a nuclear fuel block is used for replacing a fuel assembly reactor core of a pressurized water reactor, water is replaced by a heat pipe penetrating through the nuclear fuel block, and the Stirling generator driven by heat transferred by the heat pipe generates electricity, has small volume, simple structure and high reliability, provides a new power source selection for a ground/underwater/vehicle-mounted/communication base station, a communication satellite and the like, and realizes the aim of the invention.
The features of the present invention will be apparent from the accompanying drawings and from the detailed description of the preferred embodiments which follows.
Drawings
FIG. 1 is a schematic plan view of a nuclear driven Stirling apparatus of the present invention;
FIG. 2 is a side schematic view of the nuclear driven Stirling apparatus of the present invention;
FIG. 3 is a schematic cross-sectional view of a nuclear driven Stirling apparatus of the present invention;
fig. 4 is a schematic diagram of the nuclear driven stirling device of the present invention powering a ground based station.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Examples
As shown in fig. 1 to 4, the nuclear-driven stirling device of the present invention includes a nuclear fuel block 1, a heat pipe 2, a stirling generator 3, and a control ring 4, and the nuclear fuel block 1, the heat pipe 2, the stirling generator 3, and the control ring 4 are integrated in a safety canister 5 to improve nuclear safety defense and facilitate transportation.
The primary material of the safety cartridge 5 is stainless steel, which has the primary function of providing mechanical support for the core components, acting as a secondary radioactive barrier, as a means of heat dissipation. The safety cylinder 5 is provided with a power supply interface, an access hole and the like, but the functional devices have various combination modes, and the invention is not shown.
The nuclear-driven Stirling device has the advantages that energy of the nuclear-driven Stirling device is sourced from the nuclear fuel block 1, the nuclear fuel block 1 is cylindrical as a whole, the main components of the nuclear fuel block 1 comprise uranium, thorium, plutonium, graphite and the like, and the enrichment degree of the uranium is 6-19%; the nuclear fuel block 1 is distributed with a plurality of through holes which are used for inserting the heat pipes 2 which penetrate through the nuclear fuel block 1.
The nuclear fuel block 1 is provided with a through heat pipe 2, the nuclear fuel block 1 is used as a heat source of the heat pipe 2, the heat pipe 2 brings out nuclear fission heat generated by the nuclear fuel block 1, and the heat pipe 2 adopts a capillary imbibition heat pipe.
The Stirling generator 3 is used as a cold source of the heat pipe 2, and the Stirling generator 3 absorbs heat transferred by the heat pipe 2 to generate electricity.
The nuclear fuel block 1 is externally wrapped with a control ring 4 for controlling reactivity and radioactivity, the control ring 4 contains neutron reflecting materials and neutron absorbing materials, and the nuclear fission reaction of the nuclear fuel block 1 is controlled through the control ring 4.
The nuclear-driven stirling device of the present invention generates heat through a nuclear fission reaction of uranium. The heat 2 absorbs heat released by the nuclear fission reaction of the nuclear fuel block 1 and transfers the heat to the stirling generator 3, driving the stirling generator 3 to generate electricity.
The nuclear driven stirling device of the present invention includes other components, but there are many combinations of these components and the present invention is not shown. Other components, typically including scram control rods, waste heat ejectors, and the like.
The nuclear driving Stirling device has small volume, meets the standard container transportation, and can be used for ground/underwater/vehicle-mounted/communication base stations and communication satellites.
The nuclear driving Stirling device of the invention utilizes nuclear fission to generate heat, and transfers the heat through the heat pipe to drive the Stirling generator to generate electricity, and the output electric power range of the electricity generation is 1 KWe-3 MWe.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (4)
1. A nuclear-driven Stirling device is characterized by comprising a safety cylinder, wherein a nuclear fuel block is arranged in the safety cylinder, a plurality of through heat pipes are arranged in the nuclear fuel block, one end of each heat pipe is connected with a Stirling generator, and a control ring for controlling reactivity and radioactivity is wrapped outside the nuclear fuel block.
2. A nuclear driven stirling device according to claim 1, wherein the heat pipe is a capillary wicking heat pipe.
3. A nuclear driven stirling device according to claim 1, wherein said control ring is disposed coaxially with said nuclear fuel block.
4. A nuclear driven stirling device according to claim 1, wherein the safety canister is further provided with a power supply interface and a service port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010877783.7A CN111946487A (en) | 2020-08-27 | 2020-08-27 | Nuclear driving Stirling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010877783.7A CN111946487A (en) | 2020-08-27 | 2020-08-27 | Nuclear driving Stirling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111946487A true CN111946487A (en) | 2020-11-17 |
Family
ID=73367451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010877783.7A Withdrawn CN111946487A (en) | 2020-08-27 | 2020-08-27 | Nuclear driving Stirling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111946487A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943477A (en) * | 2021-03-24 | 2021-06-11 | 西安交通大学 | Novel compact space nuclear reactor power supply |
-
2020
- 2020-08-27 CN CN202010877783.7A patent/CN111946487A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943477A (en) * | 2021-03-24 | 2021-06-11 | 西安交通大学 | Novel compact space nuclear reactor power supply |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201117 |
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| WW01 | Invention patent application withdrawn after publication |