CN109378090B - Deep water type low temperature heat supply pile multi-section type internal pile component - Google Patents
Deep water type low temperature heat supply pile multi-section type internal pile component Download PDFInfo
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- CN109378090B CN109378090B CN201811342648.1A CN201811342648A CN109378090B CN 109378090 B CN109378090 B CN 109378090B CN 201811342648 A CN201811342648 A CN 201811342648A CN 109378090 B CN109378090 B CN 109378090B
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- hanging basket
- assembly
- basket assembly
- reactor core
- barrel
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/02—Details
- G21C5/06—Means for locating or supporting fuel elements
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/02—Details
- G21C5/10—Means for supporting the complete structure
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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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention relates to a multistage type pile inner component of a deep water tank type low-temperature heat supply pile, which comprises a lower hanging basket component, a middle hanging basket component and an upper hanging basket component which are sequentially and hermetically connected from bottom to top; the lower basket assembly includes a fuel assembly; the middle basket assembly and the upper basket assembly both provide reactor control rod mechanism guide mechanisms and the middle basket assembly positions and compresses the fuel assemblies. The beneficial effects of the invention are as follows: according to the invention, the middle hanging basket assembly is used for positioning and compacting the fuel assembly, the isolation of cooling water inside and outside the reactor core is realized through the sealing connection of the lower hanging basket assembly, the middle hanging basket assembly and the upper hanging basket assembly, and the guidance of the control rod mechanism can be realized through the reactor control rod mechanism guiding mechanisms on the middle hanging basket assembly and the upper hanging basket assembly.
Description
Technical Field
The invention belongs to the nuclear reactor technology, and particularly relates to a multi-section type in-pile component of a deep water type low-temperature heat supply pile.
Background
The deep water tank type heat supply pile is a nuclear energy heat source of a large-scale heat supply pipe network. It has the characteristics of simple structure, high inherent safety and low manufacturing cost. In the design of the deep water tank type low-temperature heat supply stack, in order to ensure the normal and safe operation of the deep water tank type low-temperature heat supply stack, the isolation of cooling water in the tank and cooling water of the reactor core is realized through internal components of the stack so as to ensure the cooling capacity of the reactor core. At the same time, the internals should fully meet the reload requirements and provide guidance for the control rod drive wires. The related structure is not described in the prior art.
In view of this, the present invention has been made.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a deep water tank type low-temperature heat supply reactor multi-section type reactor internals which can provide support and constraint for a reactor core and ensure the isolation of cooling water inside and outside the reactor core.
The technical scheme of the invention is as follows:
a deep water pool type low temperature heat supply pile multi-section type pile internal component comprises a lower hanging basket component, a middle hanging basket component and an upper hanging basket component which are sequentially connected in a sealing manner from bottom to top; the lower basket assembly includes a fuel assembly; the middle basket assembly and the upper basket assembly both provide reactor control rod mechanism guide mechanisms and the middle basket assembly positions and compresses the fuel assemblies.
Further, the deep water type low temperature heat supply reactor multi-section type reactor internals, wherein the lower hanging basket assembly further comprises a reactor core lower grid plate, a reactor core structural member and a lower hanging basket barrel; the reactor core lower grid plate and the reactor core structural member are fixedly connected with a lower hanging basket barrel; the fuel assembly is arranged in the lower hanging basket barrel body.
Further, the deep water type low temperature heat supply reactor multi-section type reactor internals are characterized in that the reactor core lower grid plate is provided with cooling water openings; and the lower hanging basket barrel body is provided with a water outlet hole connected with a cooling water outlet pipeline of the loop system.
Further, the deep water type low temperature heat supply reactor multi-section type reactor internals, wherein the middle hanging basket component comprises an upper grid plate of a reactor core, a support column, a control rod guide cylinder and a middle hanging basket cylinder body; the upper grid plate of the reactor core is connected with the middle hanging basket barrel body through the supporting columns; the control rod guide cylinder is arranged between the upper grid plate of the reactor core and the middle hanging basket cylinder body; the middle hanging basket barrel is fixedly connected with the lower hanging basket assembly; and a positioning structure for positioning the fuel assembly is arranged on the upper grid plate of the reactor core.
Further, the deep water type low temperature heat supply pile multi-section type pile internal component comprises a middle hanging basket barrel body and an upper plate; the upper plate is basket-shaped and is arranged at the upper end of the cylinder body; the lower end of the cylinder body is connected with the upper grid plate of the reactor core through the supporting columns.
Further, the deep water type low temperature heat supply pile multi-section type pile inner member comprises a plurality of sections of upper hanging basket barrels which are connected in sequence; the lowest upper hanging basket barrel is fixedly connected with the middle hanging basket assembly through a bottom connecting flange, and an upper hanging basket guide barrel is arranged in each section of upper hanging basket barrel.
Further, the deep water type low temperature heat supply pile multi-section pile inner member is characterized in that the lower hanging basket assembly, the middle hanging basket assembly and the upper hanging basket assembly are fixedly connected through bolts.
The beneficial effects of the invention are as follows:
according to the invention, the middle hanging basket assembly is used for positioning and compacting the fuel assembly, the isolation of cooling water inside and outside the reactor core is realized through the sealing connection of the lower hanging basket assembly, the middle hanging basket assembly and the upper hanging basket assembly, and the guidance of the control rod mechanism can be realized through the reactor control rod mechanism guiding mechanisms on the middle hanging basket assembly and the upper hanging basket assembly.
Drawings
FIG. 1 is a schematic structural view of a multi-stage internal component of a deep water pool type low temperature heat supply stack according to the present invention.
In the drawings, 1, a reactor core lower grid plate; 2. a core structure; 3. a fuel assembly; 4. a hanging basket barrel is arranged; 5. a grid plate on the reactor core; 6. a support column; 7. a control rod guide cylinder; 8. a middle hanging basket barrel; 9. an upper basket assembly; 10. and (5) feeding a hanging basket guide cylinder.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the invention provides a deep water tank type low-temperature heat supply pile multi-section type pile internal component, which comprises a lower hanging basket component, a middle hanging basket component and an upper hanging basket component 9 which are sequentially and hermetically connected from bottom to top; the lower basket assembly comprises a fuel assembly 3; the middle basket assembly and the upper basket assembly 9 both provide reactor control rod mechanism guide mechanisms and the middle basket assembly positions and compresses the fuel assemblies 3.
The lower basket assembly also comprises a reactor core lower grid plate 1, a reactor core structural member 2 and a lower basket barrel 4; the reactor core lower grid plate 1 and the reactor core structural member 2 are fixedly connected with a lower hanging basket barrel 4 and are used for providing support and restraint for the fuel assembly 3 and other reactor core structures; the fuel assembly 3 is disposed in the lower basket body 4. The reactor core lower grid plate 1 is provided with cooling water openings; the lower hanging basket barrel 4 is provided with a water outlet hole connected with a cooling water outlet pipeline of the loop system; the reactor core cooling water enters the reactor core through the holes of the reactor core lower grid plate 1, and the lower hanging basket barrel 4 is provided with water outlets uniformly distributed in the circumferential direction and is connected with a cooling water outlet pipeline of the loop system.
The middle hanging basket assembly comprises an upper grid plate 5, a support column 6, a control rod guide cylinder 7 and a middle hanging basket cylinder body 8; the upper grid plate 5 of the reactor core is connected with the middle hanging basket barrel 8 through the supporting columns 6; the control rod guide cylinder 7 is arranged between the upper grid plate 5 of the reactor core and the middle hanging basket cylinder body 8, and the upper end and the lower end of the control rod guide cylinder are respectively connected with the middle hanging basket cylinder body 8 and the upper grid plate 5 of the reactor core in a matched manner and used for providing guide for a reactor control rod mechanism; the middle hanging basket barrel 8 is fixedly connected with the lower hanging basket assembly; the upper grid plate 5 is provided with a positioning structure for positioning the fuel assemblies 3 so as to perform upper positioning and compaction on the fuel assemblies 3. The middle hanging basket barrel 8 comprises a barrel body and an upper plate; the upper plate is basket-shaped and is arranged at the upper end of the cylinder body; the lower end of the cylinder body is connected with the upper grid plate 5 of the reactor core through the supporting columns 6. A basket-like upper plate is used to mount the upper basket assembly 9 to help maintain a stable centre of gravity.
The upper hanging basket assembly 9 comprises a plurality of sections of upper hanging basket barrels which are connected in sequence; the lowest upper basket body is fixedly connected with the middle basket assembly through a bottom connecting flange, and an upper basket guide cylinder 10 is arranged in each section of upper basket body and used for providing guidance for a reactor control rod driving line. The lower hanging basket assembly, the middle hanging basket assembly and the upper hanging basket assembly 9 are fixedly connected through bolts.
In the design of the multi-section type reactor internal component of the deep water tank type low-temperature heat supply reactor, the lower hanging basket component is fixed at the bottom of the water tank through the support, the hanging baskets of each section are connected and sealed through the cylinder flange, the whole height of the reactor internal component is larger than the height of cooling water in the water tank, and the effective isolation of the cooling water in the water tank and the cooling water of the reactor core can be realized; at the same time, the control rod guide cylinder 7 and the upper basket guide cylinder 10 provide effective guide for the reactor control rod drive line. Further, during the reactor refueling, the upper basket assembly 9 (multi-section) and the middle basket assembly can be removed from top to bottom section by section, and the refueling mechanism is fixed at the upper flange of the lower basket barrel 4 to realize the refueling operation. The upper hanging basket assembly 9 is of a multi-section connecting structure, and the total section number and the length of each section can be reasonably designed according to the depth of a pool and the size of an operation space.
According to the invention, the middle hanging basket assembly is used for positioning and compacting the fuel assembly 3, the isolation of cooling water inside and outside the reactor core is realized through the sealing connection of the lower hanging basket assembly, the middle hanging basket assembly and the upper hanging basket assembly 9, and the guidance of the control rod mechanism can be realized through the reactor control rod mechanism guiding mechanisms on the middle hanging basket assembly and the upper hanging basket assembly 9.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. A deep water pond formula low temperature heat supply heap multistage formula is piled internals, its characterized in that: comprises a lower hanging basket assembly, a middle hanging basket assembly and an upper hanging basket assembly (9) which are sequentially connected in a sealing way from bottom to top; the lower basket assembly comprises a fuel assembly (3); the middle hanging basket assembly and the upper hanging basket assembly (9) both provide a reactor control rod mechanism guiding mechanism, and the middle hanging basket assembly positions and compresses the fuel assembly (3);
the lower hanging basket assembly further comprises a reactor core lower grid plate (1), a reactor core structural member (2) and a lower hanging basket barrel (4); the reactor core lower grid plate (1) and the reactor core structural member (2) are fixedly connected with a lower hanging basket barrel (4); the fuel assembly (3) is arranged in the lower hanging basket barrel (4);
the middle hanging basket assembly comprises an upper grid plate (5) of the reactor core, a support column (6), a control rod guide cylinder (7) and a middle hanging basket cylinder body (8); the upper grid plate (5) of the reactor core is connected with the middle hanging basket barrel (8) through the supporting columns (6); the control rod guide cylinder (7) is arranged between the upper grid plate (5) of the reactor core and the middle hanging basket cylinder body (8); the middle hanging basket barrel (8) is fixedly connected with the lower hanging basket assembly; and a positioning structure for positioning the fuel assembly (3) is arranged on the upper grid plate (5) of the reactor core.
2. The deep water cryogenic heat supply stack multi-section internal stack component of claim 1, wherein: the reactor core lower grid plate (1) is provided with cooling water openings; and the lower hanging basket barrel body (4) is provided with a water outlet hole connected with a cooling water outlet pipeline of the loop system.
3. The deep water cryogenic heat supply stack multi-section internal stack component of claim 1, wherein: the middle hanging basket barrel (8) comprises a barrel body and an upper plate; the upper plate is basket-shaped and is arranged at the upper end of the cylinder body; the lower end of the cylinder body is connected with the upper grid plate (5) of the reactor core through the supporting columns (6).
4. A deep water cryogenic heat supply stack multi-section internals according to any one of claims 1-3, characterized in that: the upper hanging basket assembly (9) comprises a plurality of sections of upper hanging basket barrels which are connected in sequence; the lowest upper hanging basket barrel is fixedly connected with the middle hanging basket assembly through a bottom connecting flange, and an upper hanging basket guide barrel (10) is arranged in each section of upper hanging basket barrel.
5. The deep water type low temperature heat supply stack multi-section type stack internal component as claimed in claim 4, wherein: the lower hanging basket assembly, the middle hanging basket assembly and the upper hanging basket assembly (9) are fixedly connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342648.1A CN109378090B (en) | 2018-11-12 | 2018-11-12 | Deep water type low temperature heat supply pile multi-section type internal pile component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342648.1A CN109378090B (en) | 2018-11-12 | 2018-11-12 | Deep water type low temperature heat supply pile multi-section type internal pile component |
Publications (2)
| Publication Number | Publication Date |
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| CN109378090A CN109378090A (en) | 2019-02-22 |
| CN109378090B true CN109378090B (en) | 2023-09-29 |
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| CN201811342648.1A Active CN109378090B (en) | 2018-11-12 | 2018-11-12 | Deep water type low temperature heat supply pile multi-section type internal pile component |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002365390A (en) * | 2001-06-05 | 2002-12-18 | Toshiba Corp | Boiling water reactor |
| CN1917095A (en) * | 2005-08-19 | 2007-02-21 | 中国核动力研究设计院 | Normal pressure low temperature shell type reactor |
| CN101335056A (en) * | 2008-08-06 | 2008-12-31 | 中国原子能科学研究院 | Reactor core supporting structure of pool type sodium-cooled fast reactor |
| CN103117097A (en) * | 2013-02-04 | 2013-05-22 | 中国核动力研究设计院 | Tube-plate double-process supercritical water cooled reactor |
| CN103474104A (en) * | 2012-06-08 | 2013-12-25 | 中国核动力研究设计院 | Split-type integral pressurized water reactor with down-suspended basket |
| CN208000750U (en) * | 2017-12-27 | 2018-10-23 | 核动力运行研究所 | A kind of swimming pool formula atmospheric low-temperature process heat reactor fuel handling system |
-
2018
- 2018-11-12 CN CN201811342648.1A patent/CN109378090B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002365390A (en) * | 2001-06-05 | 2002-12-18 | Toshiba Corp | Boiling water reactor |
| CN1917095A (en) * | 2005-08-19 | 2007-02-21 | 中国核动力研究设计院 | Normal pressure low temperature shell type reactor |
| CN101335056A (en) * | 2008-08-06 | 2008-12-31 | 中国原子能科学研究院 | Reactor core supporting structure of pool type sodium-cooled fast reactor |
| CN103474104A (en) * | 2012-06-08 | 2013-12-25 | 中国核动力研究设计院 | Split-type integral pressurized water reactor with down-suspended basket |
| CN103117097A (en) * | 2013-02-04 | 2013-05-22 | 中国核动力研究设计院 | Tube-plate double-process supercritical water cooled reactor |
| CN208000750U (en) * | 2017-12-27 | 2018-10-23 | 核动力运行研究所 | A kind of swimming pool formula atmospheric low-temperature process heat reactor fuel handling system |
Non-Patent Citations (1)
| Title |
|---|
| 中国先进研究堆堆芯容器及堆内构件设计研究;范月容;张占利;石辰蕾;戴长年;郎瑞峰;孙林志;;原子能科学技术(S2);全文 * |
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| CN109378090A (en) | 2019-02-22 |
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