CN205376132U - 69 integrated modular PWR of reactor core - Google Patents
69 integrated modular PWR of reactor core Download PDFInfo
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- CN205376132U CN205376132U CN201521039642.9U CN201521039642U CN205376132U CN 205376132 U CN205376132 U CN 205376132U CN 201521039642 U CN201521039642 U CN 201521039642U CN 205376132 U CN205376132 U CN 205376132U
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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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Abstract
The utility model belongs to the technical field of integration modular PWR, concretely relates to 69 integrated modular PWR of reactor core. Place the integrated as an organic wholeization PWR module of reactor pressure vessel in stabiliser, many modular steam generator, many wet -wounds group main pumps, multiunit control rod drive mechanism are whole in, stabiliser double as reactor pressure vessel top cap, the interbedded double -deck stainless steel composite construction of falling the hat heat insulating board of air is taken to inside being provided with of stabiliser, and electric heating element has been arranged to the even level of the inside circumference of stabiliser, and electric heating element is located the heat insulating board top, the built -in control rod drive mechanism of multiunit adopts the double -deck assembly of modular to arrange directly over heat insulating board below and reactor core. The utility model discloses better solution the contradiction of small -size reactor safety nature and economic nature to better engineering realizability has.
Description
Technical field
This utility model belongs to integrated module formula presurized water reactor technical field, is specifically related to the integrated module formula presurized water reactor of a kind of 69 reactor cores.
Background technology
Small-sized heap has higher safety, but faces an economy difficult problem always.In recent years, USDOE and International Atomic Energy Agency propose the modular design concept of reactor, it is intended to by modular design, while obtaining high security, improve the economy of middle-size and small-size reactor applications.But, size and the power ratio of reactor are relatively large, and unreasonable in the combination layout etc. of containment form, the setting of passive system facility, technique of reloading and module, engineering realizability is poor.
Summary of the invention
The purpose of this utility model is in that to provide the integrated module formula presurized water reactor of a kind of 69 reactor cores, preferably resolves the contradiction of Small reactor safety and economy, and has good engineering realizability.
For reaching above-mentioned purpose, technical solution adopted in the utility model is:
The integrated module formula presurized water reactor of a kind of 69 reactor cores, manostat, multiple stage modular steam generator, multiple stage wet-wound group main pump, many group CRDMs are all built in reactor pressure vessel becoming one presurized water reactor module；Manostat doubles as top cover of reactor pressure vessel, and manostat is internally provided with the double-layer stainless steel composite construction of the falling hat thermal insulation board with air blanketing, and manostat internal circumferential even level is provided with electrical heating elements, and electrical heating elements is positioned at above thermal insulation board；The built-in CRDM of many groups adopts the assembling of modular bilayer to be arranged in below thermal insulation board and directly over reactor core；In-pile component is positioned at outside CRDM, reactor pressure vessel is internal and below thermal insulation board；Multiple stage modular steam generator circumference is evenly arranged in the annular space between reactor pressure vessel and in-pile component；Below the spiral case of multiple stage built-in wet-wound group main pump and the impeller horizontal modular steam generator being evenly arranged in reactor pressure vessel of circumference, the motor being connected with wet-wound group main pump is radially horizontal to be arranged in outside reactor pressure vessel.
Described reactor core is positioned at immediately below CRDM, and reactor core adopts 69 groups of active section height to be 2m to 2.8m, cross section be the fuel assembly of 17 × 17 square arrangement.
Having the beneficial effect that acquired by this utility model
This utility model takes into account angle from safety, economy, while emphasis solves existing small-sized heap economy, promotes the safety of small-sized heap further.By design integrated, that two kinds of Advanced Ideas of modular are completely newly melted into small-sized heap.Integration can improve the inherent safety of reactor, and modular can shorten the construction period, reduces cost, improves and manufactures installation quality.This utility model can realize factory modularization manufacture, transport and installation, the construction volume at scene is greatly decreased, can shorten the construction period, reduces cost, improves and manufactures installation quality, and economic effect is very notable；This utility model eliminates the big loss of-coolant accident (LOCA) of traditional core power plant, control rod ejection accident, main pump shaft envelope loss of-coolant accident (LOCA) etc., the inherent safety of reactor is greatly improved, off site emergency can be cancelled in theory, provide possibility for nuclear energy near city-building, for improving nuclear energy and atomic propulsion nuclear reactor safety, there is revolutionary significance；This utility model can provide single heap module to reach the reactor capability needed for 200MWe level, better solves the economical efficiency of scale of small-sized heap.
This utility model cancels traditional core power plant reactor coolant loop major loop pipeline and Surge line piping thus eliminating big loss of-coolant accident (LOCA)；Built-in CRDM eliminates control rod ejection accident；Built-in wet-wound group main pump eliminates traditional core power plant main pump gland seal system and potential loss of-coolant accident (LOCA) thereof；Increase substantially reactor inherent safety, and be easy to modular manufacturing, transport and installation.Reactor core disclosed in this utility model adopts 69 groups of active section height to be 2m to 2.8m, cross section is the fuel assembly of 17 × 17 square arrangement, it is possible to provide single heap module reaches the reactor capability needed for 200MWe level, better solves the economical efficiency of scale of small-sized heap.The built-in manostat that this utility model uses doubles as top cover of reactor pressure vessel, the double-layer stainless steel composite construction of the falling hat thermal insulation board with air blanketing and circumference even level is adopted to arrange electrical heating elements, thus eliminating traditional core power plant reactor coolant loop Pressurizer surge line and potential loss of-coolant accident (LOCA) thereof.Thermal insulation board good heat-insulation effect, also can adapt to manostat housing automatically because of high temperature and radial deformation that is intrinsic pressure and that produce.Multiple stage modular steam generator circumference is evenly arranged in the annular space between reactor pressure vessel and in-pile component by this utility model, compact conformation, and heat transfer efficiency is high, can determine the quantity of steam generator flexibly according to power demand.The many groups of built-in CRDMs (CRDM) being used for pile reactivity control are adopted the assembling of modular bilayer to arrange by this utility model, coolant flow passages resistance is greatly reduced, and solves a built-in CRDM installation and repairing difficult problem.This utility model is by below the spiral case of built-in for multiple stage wet-wound group main pump and the impeller horizontal steam generator being arranged in reactor pressure vessel of circumference, the motor being connected with main pump is radially horizontal to be arranged in outside reactor pressure vessel, direct drive ram and required cooling flow are provided for reactor coolant forced circulation, make coolant circulatory flow shorten, straighten, primary Ioops flow passage resistance force of waterproof and the operation energy consumption of coolant forced circulation are greatly reduced.
Accompanying drawing explanation
Fig. 1 is integrated module formula presurized water reactor structural representation of the present utility model；
Fig. 2 is built-in stabilizator structure schematic diagram of the present utility model；
Fig. 3 is built-in wet-wound group Structure of RCP schematic diagram of the present utility model；
Wherein, 1, reactor pressure vessel；2, manostat；3, modular steam generator；4, wet-wound group main pump；5, CRDM；6, thermal insulation board；7, electrical heating elements；8, in-pile component；9, spiral case；10, impeller.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
As shown in Fig. 1 Fig. 3, the integrated module formula presurized water reactor of 69 reactor cores described in the utility model is as follows: manostat 2, multiple stage modular steam generator 3, multiple stage wet-wound group main pump 4, many group CRDMs 5 are all built in reactor pressure vessel 1 becoming one presurized water reactor module；Manostat 2 doubles as reactor pressure vessel 1 top cover, and manostat 2 is internally provided with the double-layer stainless steel composite construction of the falling hat thermal insulation board 6 with air blanketing, and manostat 2 internal circumferential even level is provided with electrical heating elements 7, and electrical heating elements 7 is positioned at above thermal insulation board 6.The built-in CRDM 5 of many groups adopts the assembling of modular bilayer to be arranged in below thermal insulation board 6 and directly over reactor core 11.In-pile component 8 is positioned at outside CRDM 5, reactor pressure vessel 1 is internal and below thermal insulation board 6.Multiple stage modular steam generator 3 circumference is evenly arranged in the annular space between reactor pressure vessel 1 and in-pile component 8.Below the spiral case 9 of multiple stage built-in wet-wound group main pump 4 and the impeller 10 horizontal DC Module formula steam generator 3 being evenly arranged in reactor pressure vessel 1 of circumference, the motor being connected with wet-wound group main pump 4 is radially horizontal to be arranged in outside reactor pressure vessel 1.Reactor core 11 is positioned at immediately below CRDM 5, and reactor core 11 adopts 69 groups of active section height to be 2m to 2.8m, cross section be the fuel assembly of 17 × 17 square arrangement.
In the present embodiment, 2,16 modular steam generators of manostat, 4,61 groups of CRDMs 5 of 3,6 wet-wound group main pumps are all built in reactor pressure vessel 1 becoming one reactor module, eliminate reactor coolant loop return and big loss of-coolant accident (LOCA), it is simple to modular manufacturing, transport and installation；
The present embodiment reactor core adopts 69 groups of active section height to be 2.65m, cross section is the fuel assembly of 17 × 17 square arrangement.
In the present embodiment, the total measurement (volume) of built-in manostat 2 is about 20m3, adopt the double-layer stainless steel composite construction of the falling hat thermal insulation board 6 with air blanketing and circumference even level to arrange electrical heating elements 7 totally 60, eliminate traditional Surge line piping.
In the present embodiment, 16 modular steam generator 3 circumferences are evenly arranged in the annular space between reactor pressure vessel 1 and in-pile component 8.Reactor pressure vessel 1 internal diameter is about 3600mm.
In the present embodiment, 61 groups of built-in CRDMs 5 adopt the assembling of modular bilayer to arrange, coolant flow passages resistance is greatly reduced, and solves a built-in CRDM installation and repairing difficult problem.
In the present embodiment below the spiral case 9 of 6 built-in wet-wound group main pumps 4 and the impeller 10 horizontal steam generator being evenly arranged in reactor pressure vessel of circumference, coolant circulation circuit is shortened, straightens, primary Ioops flow passage resistance force of waterproof and the operation energy consumption of coolant forced circulation are greatly reduced.Separate unit main pump flow is about 2622m3/h。
Claims (2)
1. the integrated module formula presurized water reactor of a reactor core, it is characterised in that: manostat (2), multiple stage modular steam generator (3), multiple stage wet-wound group main pump (4), organize CRDM (5) more and be all built in reactor pressure vessel (1) becoming one presurized water reactor module；Manostat (2) doubles as reactor pressure vessel (1) top cover, manostat (2) is internally provided with the double-layer stainless steel composite construction of falling hat thermal insulation board (6) with air blanketing, manostat (2) internal circumferential even level is provided with electrical heating elements (7), and electrical heating elements (7) is positioned at thermal insulation board (6) top；Built-in CRDMs (5) of organizing adopt the assembling of modular bilayer to be arranged in directly over thermal insulation board (6) lower section and reactor core (11) more；In-pile component (8) is positioned at CRDM (5) outside, reactor pressure vessel (1) inside and thermal insulation board (6) lower section；Multiple stage modular steam generator (3) circumference is evenly arranged in the annular space between reactor pressure vessel (1) and in-pile component (8)；The spiral case (9) of multiple stage built-in wet-wound group main pump (4) and horizontal modular steam generator (3) lower section being evenly arranged in reactor pressure vessel (1) of impeller (10) circumference, the motor being connected with wet-wound group main pump (4) is radially horizontal is arranged in reactor pressure vessel (1) outward.
2. the integrated module formula presurized water reactor of 69 reactor cores according to claim 1, it is characterized in that: described reactor core (11) is positioned at immediately below CRDM (5), reactor core (11) adopts 69 groups of active section height to be 2m to 2.8m, cross section is the fuel assembly of 17 × 17 square arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039642.9U CN205376132U (en) | 2015-12-15 | 2015-12-15 | 69 integrated modular PWR of reactor core |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521039642.9U CN205376132U (en) | 2015-12-15 | 2015-12-15 | 69 integrated modular PWR of reactor core |
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| CN205376132U true CN205376132U (en) | 2016-07-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847351A (en) * | 2017-01-20 | 2017-06-13 | 中广核研究院有限公司 | The assembly and disassembly methods and dismantling device of the double-layer sleeve structure of nuclear reactor |
| CN106887261A (en) * | 2015-12-15 | 2017-06-23 | 中国核动力研究设计院 | A kind of integrated module formula presurized water reactor of 69 reactor core |
| CN111899899A (en) * | 2020-08-12 | 2020-11-06 | 中国核动力研究设计院 | Method for reducing HFETR reactor core nonuniformity |
-
2015
- 2015-12-15 CN CN201521039642.9U patent/CN205376132U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887261A (en) * | 2015-12-15 | 2017-06-23 | 中国核动力研究设计院 | A kind of integrated module formula presurized water reactor of 69 reactor core |
| CN106847351A (en) * | 2017-01-20 | 2017-06-13 | 中广核研究院有限公司 | The assembly and disassembly methods and dismantling device of the double-layer sleeve structure of nuclear reactor |
| CN111899899A (en) * | 2020-08-12 | 2020-11-06 | 中国核动力研究设计院 | Method for reducing HFETR reactor core nonuniformity |
| CN111899899B (en) * | 2020-08-12 | 2022-03-25 | 中国核动力研究设计院 | Method for reducing HFETR reactor core nonuniformity |
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