CN206222962U - A kind of containment structure that can improve condensing heat-exchange performance - Google Patents
A kind of containment structure that can improve condensing heat-exchange performance Download PDFInfo
- Publication number
- CN206222962U CN206222962U CN201621251490.3U CN201621251490U CN206222962U CN 206222962 U CN206222962 U CN 206222962U CN 201621251490 U CN201621251490 U CN 201621251490U CN 206222962 U CN206222962 U CN 206222962U
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- Prior art keywords
- deflector
- containment
- containment structure
- madial wall
- containment body
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Abstract
The utility model discloses a kind of containment structure that can improve condensing heat-exchange performance, including containment body, the containment body madial wall is vertically spaced the multigroup deflector of laying, and diagonally downward, the deflector is horizontal by setting angle for the deflector；Described deflector one end is fixed with containment body madial wall, and the deflector other end is hanging on the inside of containment body.The utility model lays inclined deflector by containment body madial wall, can in time will on containment inwall under accident condition formed the drainage of water vapor condensate film and away from containment inwall, so as to reduce the thickness of liquid film on wall, the heat transfer efficiency of nuclear power plant containment shell under amplitude peak ground lifting accident conditions, and then improve the security performance of nuclear power plant containment shell.
Description
Technical field
The utility model belongs to technical field of heat transfer, and the containment of AP1000 nuclear power stations is more particularly to optimized using deflector
Heat transfer property under accident conditions, specifically a kind of containment structure that can improve condensing heat-exchange performance.
Background technology
Nuclear energy power generation is abundant because of its fuel source, and unit mass fuel energy storage is huge, and fuel cost is low and convenient transportation, makes
Wait remarkable advantage less into pollution and be constantly subjected to the concern of countries in the world and greatly develop, and fossil energy exhaustion crisis causes core
The importance that can be generated electricity more is protruded.But because nuclear fuel has strong lasting radioactivity, nuclear power station is after leaking
Fruit will not be contemplated that.Based on this, security is classified as key problem in technology point by Generation Ⅲ, and passive cooling system is exactly
Ensure that reactor sensible heat is discharged and is unlikely to damage the critical system of security mask shell in time with decay heat under burst accident.Cause
This, the optimization design to passive cooling system diabatic process is particularly important.The whole efficiency of diabatic process is limited to connect
Maximum thermal resistance in journey.Containment shell is higher as steel thermal conductivity factor in itself, and the heat transfer outside housing is due to being compounded with biography
Matter, convection current and radiation efficiency are also higher.The heat transfer efficiency of Condensation is high in Safety shell under accident, but when steaming
One layer of liquid film will be formed in containment inner surface after vapour condensation, and the latent heat that steam condensation is released must be by this layer of liquid film ability
Reach inner surface.Due to liquid film layer, thermal conductivity factor is low in itself, and flowing velocity is small, will turn into the dominant thermal resistance conducted heat in shell, and liquid
Film is thicker, and this thermal resistance will be bigger.
The inner surface of the nuclear power generating sets containment of current actual motion is without any improved smooth surface, accident feelings
The thickness of water vapor condensate film will become increasingly thicker with the carrying out of condensation process under condition, until reaching a maximum, and
Due to Action of Gravity Field, closer to containment bottom, liquid film will be thicker.This liquid film heat transfer resistance is big, seriously constrains under accident conditions
The condensation radiating of water vapour, therefore thickness of liquid film on thinning containment inner surface, so as to lift heat transfer efficiency in containment
Effective measures as the security for further improving Generation Ⅲ.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided one kind can improve condensing heat-exchange performance
Containment structure, by containment inwall under accident conditions formed water vapor condensate film carry out water conservancy diversion, make its in time from
Wall departs from, so that the thickness of liquid film on wall is reduced, so as to lift heat transfer efficiency in containment.
To achieve the above object, the utility model uses following technical proposals：
A kind of containment structure that can improve condensing heat-exchange performance, including containment body, the containment body inner side
Wall is vertically spaced the multigroup deflector of laying, and diagonally downward, the deflector is pressed from both sides the deflector horizontal by setting
Angle；Described deflector one end is fixed with containment body madial wall, and the deflector other end is hanging on the inside of containment body.
The deflector is 10~60 ° with the angle of horizontal plane.When deflector is inclined with 10~60 °, steam condensate edge
The following current best results of deflector.
The upper surface of the deflector is smooth flat.
Or, the deflector upper surface carries conduit.
Preferably, the cloth set direction of the conduit is identical with the radial direction of containment body.
Preferably, the cross section of the deflector is polygon.
The deflector is continuous cirque structure, and one group of deflector includes a continuous cirque structure.
Or, the deflector is arcuate structure, and one group of deflector of sustained height position includes multiple arcs structure.
The multiple arcuate structure is spaced along containment body madial wall even circumferential and lays.
Preferably, the interlaced laying of the arcuate structure of two adjacent groups deflector.
Preferably, the deflector offers multiple perforates.
Preferably, the deflector least significant end is connected with folded plate diagonally downward, and the folded plate is big with the angle of horizontal plane
In deflector and the angle of horizontal plane.
It is further preferred that rounding off connection between the folded plate and deflector.
The beneficial effects of the utility model are：
The utility model lays inclined deflector by containment body madial wall, can in time by under accident condition
On containment inwall formed the drainage of water vapor condensate film and away from containment inwall, so as to reduce liquid film on wall
Thickness, the heat transfer efficiency of nuclear power plant containment shell under amplitude peak ground lifting accident conditions, and then improve the peace of nuclear power plant containment shell
Full performance.
Deflector upper surface of the present utility model sets conduit, consistent with thin film drainage direction, is conducive to liquid film by water conservancy diversion
Plate is flowed down.
Perforate on the utility model deflector, can be such that condensate liquid is flowed down in time after sliding to deflector, improve condensation
The drainage speed of liquid.
The utility model sets folded plate in deflector end, and folded plate can play further drainage to liquid film, condenses
Liquid folded plate of postponing can rapidly depart from deflector.
Brief description of the drawings
Fig. 1 is containment structure schematic diagram of the utility model with continuous annular deflector；
Fig. 2 is containment structure schematic diagram of the utility model with arcuate structure deflector；
Fig. 3 is deflector top view of the utility model with perforate；
Fig. 4 is deflector top view of the utility model with conduit；
Fig. 5 is the connection diagram of the utility model deflector and folded plate；
In figure, 1, containment body, 2, deflector, 3, perforate, 4, conduit, 5, folded plate.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1：
As shown in figure 1, a kind of containment structure that can improve condensing heat-exchange performance, including containment body 1, containment sheet
The madial wall of body 1 is vertically spaced the multigroup deflector 2 of laying, and diagonally downward, deflector 2 is horizontal by setting for deflector 2
Angle；The one end of deflector 2 is fixed with the madial wall of containment body 1, and the other end of deflector 2 is hanging in the inner side of containment body 1.
Deflector 2 can be fixed on the inner surface of containment body 1 in a welding manner.
Deflector 2 is 10~60 ° with the angle of horizontal plane, preferably 18 °.
The upper surface of deflector 2 is smooth flat.Or, as shown in figure 4, the upper surface of deflector 2 carries conduit 4, conduit 4
Cloth set direction it is identical with the radial direction of containment body 1.Conduit 4 is consistent with thin film drainage direction, is conducive to liquid film by leading
Stream plate is flowed down.
The cross section of deflector 2 is polygon, can be quadrangle, triangle or trapezoidal.
Deflector 2 can be continuous, and deflector 2 is continuous cirque structure, one group of deflector 2 of sustained height position
Including a continuous cirque structure.
As shown in figure 3, multiple perforates 3 can be offered on deflector 2, can make condensate liquid after sliding to deflector and
When flow down, improve condensate liquid drainage speed.
As shown in figure 5, the least significant end of deflector 2 is connected with folded plate 5 diagonally downward, folded plate 5 is more than with the angle of horizontal plane
The angle of deflector 1 and horizontal plane.Rounding off connection between folded plate 5 and deflector 2.
Under accident conditions, the leaked steam for carrying reactor sensible heat and decay heat is condensed in the inner surface of containment body 1, shape
Into condensed fluid, under gravity, along wall flow down.After deflector 2 is run into, condensate liquid is through the water conservancy diversion of deflector 2
And containment inwall is left, and depart from along the edge of deflector 2, so as to reduce the thickness of condensate film on containment wall, one
Aspect, will make cold to liquid film forming water conservancy diversion role of tear with containment inner surface deflector at an angle under Action of Gravity Field
Lime set body departs from containment inner surface, so as to reduce the thickness of liquid film on wall, reduces the thermal resistance in heat transfer process；It is another
Aspect, deflector will increase condensation area in itself, and thickness of liquid film will reduce in the case of identical condensation number, such that it is able to effectively carry
Heat transfer efficiency in containment is risen, and then improves the security performance of nuclear power plant containment shell.
Embodiment 2：
As shown in Fig. 2 deflector 2 can be interruption, the deflector 2 of containment structure is arcuate structure, sustained height
One group of deflector 2 of position includes multiple arcs structure.Multiple arcs structure is spaced along the madial wall even circumferential of containment body 1
Lay.The interlaced laying of arcuate structure of two adjacent groups deflector.Condensate liquid can along deflector drainage step by step, advantageously in
Liquid film is departed from by deflector.
Other are same as Example 1.
It is not new to this practicality although above-mentioned be described with reference to accompanying drawing to specific embodiment of the present utility model
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Various modifications or deform still in protection model of the present utility model that field technique personnel make by need not paying creative work
Within enclosing.
Claims (10)
1. a kind of containment structure that can improve condensing heat-exchange performance, it is characterized in that, including containment body, the containment sheet
Body madial wall is vertically spaced the multigroup deflector of laying, the deflector diagonally downward, the deflector horizontal by
Setting angle；Described deflector one end is fixed with containment body madial wall, and the deflector other end hangs on the inside of containment body
It is empty.
2. containment structure as claimed in claim 1, it is characterized in that, the deflector is 10~60 ° with the angle of horizontal plane.
3. containment structure as claimed in claim 1, it is characterized in that, the upper surface of the deflector is smooth flat；Or,
The deflector upper surface carries conduit.
4. containment structure as claimed in claim 3, it is characterized in that, the cloth set direction of the conduit and the footpath of containment body
It is identical to direction.
5. containment structure as claimed in claim 1, it is characterized in that, the cross section of the deflector is polygon.
6. containment structure as claimed in claim 1, it is characterized in that, the deflector is continuous cirque structure, and one group is led
Stream plate includes a continuous cirque structure.
7. containment structure as claimed in claim 1, it is characterized in that, the deflector is arcuate structure, sustained height position
One group of deflector include multiple arcs structure.
8. containment structure as claimed in claim 7, it is characterized in that, the multiple arcuate structure is along containment body madial wall
Lay at even circumferential interval；The interlaced laying of arcuate structure of two adjacent groups deflector.
9. containment structure as claimed in claim 1, it is characterized in that, the deflector offers multiple perforates.
10. containment structure as claimed in claim 1, it is characterized in that, the deflector least significant end is connected with diagonally downward
Folded plate, the folded plate is more than the angle of deflector and horizontal plane with the angle of horizontal plane；It is round and smooth between the folded plate and deflector
Transition is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251490.3U CN206222962U (en) | 2016-11-14 | 2016-11-14 | A kind of containment structure that can improve condensing heat-exchange performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251490.3U CN206222962U (en) | 2016-11-14 | 2016-11-14 | A kind of containment structure that can improve condensing heat-exchange performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206222962U true CN206222962U (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621251490.3U Active CN206222962U (en) | 2016-11-14 | 2016-11-14 | A kind of containment structure that can improve condensing heat-exchange performance |
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| CN (1) | CN206222962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109806719A (en) * | 2019-03-25 | 2019-05-28 | 福建省新宏港纺织科技有限公司 | A kind of waste gas recovering device of fabric cleaning systems |
-
2016
- 2016-11-14 CN CN201621251490.3U patent/CN206222962U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109806719A (en) * | 2019-03-25 | 2019-05-28 | 福建省新宏港纺织科技有限公司 | A kind of waste gas recovering device of fabric cleaning systems |
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