CN203055476U - Coaming-type collection structure applicable to supercritical water-cooled reactor - Google Patents
Coaming-type collection structure applicable to supercritical water-cooled reactor Download PDFInfo
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- CN203055476U CN203055476U CN2013200627466U CN201320062746U CN203055476U CN 203055476 U CN203055476 U CN 203055476U CN 2013200627466 U CN2013200627466 U CN 2013200627466U CN 201320062746 U CN201320062746 U CN 201320062746U CN 203055476 U CN203055476 U CN 203055476U
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- plate
- coaming
- tube
- coaming plate
- reactor core
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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 discloses a coaming-type collection structure applicable to a supercritical water-cooled reactor. The coaming-type collection structure comprises a wrapper (3) and a reactor core lower plate (1) which is arranged in the wrapper (3) and connected with the wrapper (3), the lower end surface of the reactor core lower plate (1) is connected with a coaming (6), the inside of the wrapper (3) is divided by the coaming (6) into a central pass-A area inside the coaming (6) and a peripheral pass-B area which is formed between the wrapper (3) and the coaming (6), and the reactor core lower plate (1) is provided with a plurality of water flowing holes which are communicated with the central pass-A area and a plurality of air inlet holes which are communicated with the peripheral pass-B area. By adopting the structure, the entire structure is simple and compact, the size is small, the structural firmness is improved, and the two-pass scheme of the supercritical water-cooled reactor can be realized.
Description
Technical field
The utility model relates to the in-pile component of supercritical water cold dome, specifically is a kind of coaming plate formula afflux structure that is applicable to the supercritical water cold dome.
Background technology
Two generations of present nuclear power both domestic and external, two generation modified, three generations's pressurized water type reactor be cooling medium one flow process structure, flow process is simple, it is comparatively easy that structure realizes.In order to realize mixing and first sub-distribution of lower chambers cooling medium, be that three generations's nuclear-power reactor of representative all is provided with flow distribution device with AP1000 and EPR.Supercritical water cold dome operating pressure and temperature height, complex structure, its lower chambers space is limited, stream causes the vibration effect reliability of structure, how to design afflux and the distribution that afflux structure is realized cooling medium in supercritical water cold dome lower chambers, and guaranteeing the firm of afflux structure, this becomes present people's question of common concern.
The utility model content
The purpose of this utility model is to provide a kind of coaming plate formula afflux structure that is applicable to the supercritical water cold dome, and it is simple in structure firm, so can use in the limited space of supercritical water cold dome lower chambers, and can avoid stream to cause its reliability of structure of vibration effect.
The purpose of this utility model is achieved through the following technical solutions: a kind of coaming plate formula afflux structure that is applicable to the supercritical water cold dome, comprise enclose tube and be arranged on enclose in the tube and with enclose the reactor core lower plate that is connected of tube, reactor core lower plate lower surface is connected with coaming plate, described coaming plate is separated and is enclosed an inner region and constitute the central authorities one flow process zone in the coaming plate and enclose two flow process zones, periphery between tube and the coaming plate, and described reactor core lower plate is provided with several discharge orifices of connecting a central flow process zone and several connect the inlet opening in peripheral two flow process zones.Corresponding every group fuel assembly is answered in the discharge orifice that reactor core lower plate of the present utility model is offered, and when the utility model was used, the reactor core lower plate was used for location and supporting fuel assembly, provides passage for moderator simultaneously.
Described enclosing is connected with the lower support plate that is positioned at reactor core lower plate below between tube and the coaming plate, described lower support plate constitutes the limbers of running through its upper and lower end face.
Be provided with the many up and down support columns that are connected with the lower support plate upper surface with reactor core lower plate lower surface respectively of two ends in the described peripheral two flow process zones.The utility model play supporting role between reactor core lower plate and lower support plate by support column, can guarantee that so the relative position between the reactor core lower plate and lower support plate is difficult for changing in cooling medium and the moderator process of circulation, this has further guaranteed the stable of the utility model structure.
Described coaming plate is connected with the spreader plate of its lower ending opening of sealing, and described spreader plate constitutes several perforates.Wherein, spreader plate is used for distributing and mixing cooling medium.
A kind of coaming plate formula afflux structure that is applicable to the supercritical water cold dome, the semielliptical shape lower house that also comprises hollow, describedly enclose the lateral wall that tube is positioned at lower house and encloses tube and is connected below enclosing tin and the zone between lower house inner bottom part formation manifold with the inwall of lower house.The utility model is when using, and lower house is connected with hanging basket tube in the supercritical water cold dome by securing member.
Cooling medium entered the reactor core in a central flow process zone when the utility model was used along spreader plate, downward along the inter-module space after the fuel assembly heating, enter manifold along the peripheral inlet opening of reactor core lower plate, be re-used as two flow process cooling mediums and enter reactor core, thereby realize supercritical water cold dome double fluid journey organization plan.
Compared with prior art, the utlity model has following beneficial effect: the utility model comprise enclose tube and be arranged on enclose in the tube and with enclose the reactor core lower plate that is connected of tube, wherein, reactor core lower plate lower surface is connected with coaming plate, the coaming plate separation is enclosed an inner region and is constituted central flow process zone and peripheral two flow process zones, the reactor core lower plate is provided with several discharge orifices of connecting a central flow process zone and several connect the inlet opening in peripheral two flow process zones, the utility model one-piece construction is simply compact, good economy performance, practical safe and reliable, structural stability and reliability have been improved, volume is little, can in the limited space of supercritical water cold dome lower chambers, use, and be convenient to realize two flow process schemes of supercritical water cold dome by the utility model.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 be among Fig. 1 A-A to structural representation;
Fig. 3 is the plan structure synoptic diagram of reactor core lower plate.
The corresponding name of Reference numeral is called in the accompanying drawing: 1, reactor core lower plate, 2, support column, 3, enclose tube, 4, lower support plate, 5, spreader plate, 6, coaming plate.
Embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiment of the present utility model is not limited thereto.
Embodiment:
As shown in Figure 1, a kind of coaming plate formula afflux structure that is applicable to the supercritical water cold dome, comprise and enclose tube 3, coaming plate 6, circular reactor core lower plate 1 and the semielliptical shape lower house 7 of hollow, wherein, reactor core lower plate 1 be arranged on enclose in the tube 3 and the annular sidewall of reactor core lower plate 1 with enclose 3 inwall and be connected.Coaming plate 6 is connected in reactor core lower plate 1 lower surface, and coaming plate 6 separations are enclosed tube 3 inner regions and constituted central flow process zone and peripheral two flow process zones, and wherein, central flow process zone is the zone in the coaming plate 6, and peripheral two flow processs zone is the zone of enclosing between tube 3 and the coaming plate 6.Reactor core lower plate 1 is provided with several discharge orifices of connecting a central flow process zone and several connect the inlet opening in peripheral two flow process zones, discharge orifice and inlet opening both evenly distribute, wherein, discharge orifice and inlet opening all are holes that reactor core lower plate 1 corresponding every group fuel assembly is offered.Enclose tube 3 and be positioned at lower house 7 and enclose tube 3 lateral wall and be connected with the inwall of lower house 7, enclose the zone formation manifold between 3 below and lower house 7 inner bottom parts.
Cause at stream for fear of coaming plate 6 under the influence of vibration and be offset, enclose between tube 3 and the coaming plate 6 and be connected with the lower support plate 4 that is positioned at reactor core lower plate 1 below, lower support plate 4 constitutes the limbers of running through its upper and lower end face.Wherein, reactor core lower plate 1 is positioned at the inwall that encloses tube 3 upper ends with the connecting portion that encloses tube 3 when specifically arranging, and lower support plate 4 is positioned at the inwall that encloses tube 3 lower ends with the connecting portion that encloses tube 3.Be shifted under the percussive action of fluid for fear of reactor core lower plate 1 and lower support plate 4, be provided with many support columns 2 in the peripheral two flow process zones, wherein, the two ends up and down of support column 2 are connected with lower support plate 4 upper surfaces with reactor core lower plate 1 lower surface respectively.Coaming plate 6 is connected with the spreader plate 5 of its lower ending opening of sealing, and spreader plate 5 constitutes several perforates.In order to guarantee all titles of present embodiment structure, coaming plate 6 lower end horizontal levels are identical with the horizontal level of lower support plate 4 lower surfaces, and spreader plate 5 also is connected in the lower surface of lower support plate 4.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not breaking away from other embodiments that draw under the technical solution of the utility model, all should be included in the protection domain of the present utility model.
Claims (5)
1. coaming plate formula afflux structure that is applicable to the supercritical water cold dome, it is characterized in that: comprise enclose tube (3) and be arranged on enclose in the tube (3) and with enclose the reactor core lower plate (1) that is connected of tube (3), reactor core lower plate (1) lower surface is connected with coaming plate (6), described coaming plate (6) is separated and to be enclosed tube (3) inner region and constitute the central authorities one flow process zone in the coaming plate (6) and enclose two flow process zones, periphery between tube (3) and the coaming plate (6), and described reactor core lower plate (1) is provided with several discharge orifices of connecting a central flow process zone and connects the inlet opening in peripheral two flow process zones with several.
2. a kind of coaming plate formula afflux structure that is applicable to the supercritical water cold dome according to claim 1, it is characterized in that: described enclosing is connected with the lower support plate (4) that is positioned at reactor core lower plate (1) below between tube (3) and the coaming plate (6), described lower support plate (4) constitutes the limbers of running through its upper and lower end face.
3. a kind of coaming plate formula afflux structure that is applicable to the supercritical water cold dome according to claim 2 is characterized in that: be provided with the many support columns (2) that are connected with lower support plate (4) upper surface with reactor core lower plate (1) lower surface respectively of two ends up and down in the described peripheral two flow process zones.
4. a kind of coaming plate formula afflux structure that is applicable to the supercritical water cold dome according to claim 1 is characterized in that: described coaming plate (6) is connected with the spreader plate (5) of its lower ending opening of sealing, and spreader plate (5) constitutes several perforates.
5. according to each described a kind of coaming plate formula afflux structure that is applicable to the supercritical water cold dome in the claim 1～4, it is characterized in that: the semielliptical shape lower house (7) that also comprises hollow, describedly enclose the lateral wall that tube (3) is positioned at lower house (7) and encloses tube (3) and is connected with the inwall of lower house (7), enclose below tin (3) and the formation manifold of the zone between lower house (7) inner bottom part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200627466U CN203055476U (en) | 2013-02-04 | 2013-02-04 | Coaming-type collection structure applicable to supercritical water-cooled reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200627466U CN203055476U (en) | 2013-02-04 | 2013-02-04 | Coaming-type collection structure applicable to supercritical water-cooled reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055476U true CN203055476U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200627466U Withdrawn - After Issue CN203055476U (en) | 2013-02-04 | 2013-02-04 | Coaming-type collection structure applicable to supercritical water-cooled reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137220B (en) * | 2013-02-04 | 2015-09-23 | 中国核动力研究设计院 | A kind of Brattice type afflux structure being applicable to Supercritical-Pressure Light Water Cooled Reactor |
| CN107170490A (en) * | 2017-07-14 | 2017-09-15 | 四川大学 | A kind of reactor lower chambers cooling agent is mixed and current equalizer |
-
2013
- 2013-02-04 CN CN2013200627466U patent/CN203055476U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137220B (en) * | 2013-02-04 | 2015-09-23 | 中国核动力研究设计院 | A kind of Brattice type afflux structure being applicable to Supercritical-Pressure Light Water Cooled Reactor |
| CN107170490A (en) * | 2017-07-14 | 2017-09-15 | 四川大学 | A kind of reactor lower chambers cooling agent is mixed and current equalizer |
| CN107170490B (en) * | 2017-07-14 | 2023-07-04 | 中国核动力研究设计院 | Reactor lower chamber coolant mixing and flow equalizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130710 Effective date of abandoning: 20150923 |
|
| RGAV | Abandon patent right to avoid regrant |