CN203070784U - Non-active double layer containment with water storage steel pipe column - Google Patents
Non-active double layer containment with water storage steel pipe column Download PDFInfo
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- CN203070784U CN203070784U CN2013200166525U CN201320016652U CN203070784U CN 203070784 U CN203070784 U CN 203070784U CN 2013200166525 U CN2013200166525 U CN 2013200166525U CN 201320016652 U CN201320016652 U CN 201320016652U CN 203070784 U CN203070784 U CN 203070784U
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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 safeguard construction design of a nuclear power station and particularly relates to a non-active double layer containment with a water storage steel pipe column. A soleplate is located on a foundation; a steel containment is located on the soleplate; an outer side plate is arranged on the outer side of the steel containment, and the outer side plate is located on the soleplate; a head plate is arranged on the outer side plate, an upper cooling water tank is located on the head plate and is situated right above the steel containment; upper cooling water is stored in the upper cooling water tank; a lower air intake and an upper vent hole are located on the outer side plate; a flow rate distribution disk is hung and welded on the head plate and is located between the upper cooling water tank and the steel containment; and an air flow guide plate is welded on the inner side of the outer side plate. According to the utility model, the cooling performance of the containment and the viability of the nuclear power station under an accident working condition are improved; and the structure property of the containment can be also greatly improved, so that the structural style of the steel containment is more reasonable, the rigidity of the steel containment is greatly enhanced and the vibration resistance of the steel containment is reinforced.
Description
Technical field
The utility model belongs to nuclear power safeguard construction design field, is specifically related to a kind of non-active double containment with the retaining steel pipe column.
Background technology
Containment/shielding factory building is the most important structures of nuclear power plant, and its major function is after imaginary design basis accident, bears interior pressure, contains the airborne radioactivity releaser, and provides barrier at normal operation period for reactor core and coolant system.Simultaneously, containment/shielding factory building also is the heating power border of reactor, has the function that the heat that will produce after the design basis accident enters atmosphere, prevents superpressure.
At present the type of comparatively popular containment/shielding factory building mainly comprise prestressed concrete containment vessel in the band steel lining, the double containment formed by prestressed concrete containment vessel and normal concrete containment and shield the common double containment of forming of factory building by metal containment and reinforcing bar/prestressed reinforced concrete.The Qinshan first phase of China is the prestressed concrete containment vessel that adopts in the band steel lining of autonomous Design.Adopt the EPR nuclear power plant of French technology and adopt the VVER nuclear power plant of Russian technology to adopt the double containment of being formed by prestressed concrete containment vessel and normal concrete containment.And the AP1000 nuclear power plant that is building in enormous quantities at present then is to adopt the double containment of being made up of jointly metal containment and reinforced concrete shielding factory building, and this containment has adopted passive technology, has higher reliability.
The non-active cooling of the containment of AP1000 nuclear power plant under the benchmark accident is that the spray of the non-passive safety shell cooling water tank institute water storage by shielding factory building top carries out.Compare containment/shielding factory building in the past, on thermodynamic property, this is an obvious improvement.Why the crisis of Fukushima, Japan nuclear power worsens, and is because of active cooling failure under extreme operating condition.But also there is certain problem in AP1000 nuclear power plant: so huge water tank places the top of shielding factory building, and obviously the antidetonation to structure is disadvantageous.And can spray system itself open in the state of accident smoothly, also will influence the reliability of system greatly.
Chinese invention patent 03143620.X has proposed a kind of novel boiling water reactor containment, and this patent is adjusted the containment inner structure, has certain innovation.But containment itself is not made significant improvement, discharge and prevent marked improvement is not arranged aspect the superpressure at waste heat.
Summary of the invention
The purpose of this utility model is to provide a kind of non-active double containment with the retaining steel pipe column, to overcome the deficiency that prior art exists.
For achieving the above object, technical solution adopted in the utility model is:
A kind of non-active double containment with the retaining steel pipe column, this containment comprises metal containment, outer panel, base plate, top board, top cooling water tank, top chilled water, lower air inlet, upper discharge hole, air baffle, assignment of traffic dish;
Described base plate is seated on the ground; Metal containment is seated on the base plate; The arranged outside of metal containment has outer panel, and outer panel is seated on the base plate; Outer panel is provided with top board, and the top cooling water tank is seated on the top board and is positioned at directly over the metal containment; The top chilled water is stored in the cooling water tank of top; Lower air inlet and upper discharge hole are positioned on the outer panel; The assignment of traffic dish hangs and is welded on the top board, and between top cooling water tank and metal containment; Air baffle is welded on the outer panel inboard.
Described metal containment is made up of the metal containment main body of cylindrical tube shape and cover head and the bottom (head) of two ends semielliptical shape thereof, and metal containment is connected with base plate by bottom (head).
Described metal containment main body by the retaining steel pipe column of evenly arranging and between the intercolumniation plate form.
Store the intercolumniation chilled water in the described retaining steel pipe column.
The quantity of described retaining steel pipe column is 16, evenly arranges around the metal containment planar central with 22.5 ° of spacings.
Described retaining steel pipe column is the band edge of a wing weldless steel tube that is formed by the steel overall perfusion, and kiss-coating is again carried out after the preservative treatment in its inboard.
Described cover head is the semielliptical shape of being made up of plate, cover head top board and trough girder stiffener between semicircle trough girder, beam; The lower end of semicircle trough girder and the welding of corresponding retaining steel pipe column upper end, the upper end of semicircle trough girder and the welding of cover head top board, the side of semicircle trough girder connects by plate between beam, the upper end of plate and cover head top board welding between beam, the lower end of plate and corresponding intercolumniation plate welding between beam; The trough girder stiffener is welded on the semicircle trough girder, and the plane of trough girder stiffener is perpendicular to semicircle trough girder axis.
Described outer panel is the cylinder-like structure that inside has stainless steel lining, applied ring orientation prestress, had strong structural-load-carrying capacity and radiation shield ability.
Described outer panel is connected by joint bar with base plate.
The obtained beneficial effect of the utility model is:
The non-active double containment of band retaining steel pipe column described in the utility model utilizes the intrinsic physical characteristics of water and air, adopts the principle of heat loss through convection, has good waste heat discharging performance, does not need the support of the external energy under accident conditions.Compare with the non-active cooling of AP1000, the present invention has increased the intercolumniation chilled water and has assisted cooling, has improved the cooling performance of containment under the accident conditions greatly, has improved the nuclear power station viability under the accident conditions.Structural design of the present invention can also improve the structural behaviour of containment greatly, makes the version of metal containment more reasonable, makes metal containment rigidity be able to bigger raising, has improved the anti-seismic performance of metal containment;
Common containment/shielding factory building carries out waste heat by ad hoc security system and discharge, and these security systems is need be power-actuated that under accident conditions, there is very big problem in the reliability of security system self.And the present invention carries out the waste heat discharge by the intrinsic physical characteristics of the thermal convection of water, and reliability is higher;
The containment of AP1000/shielding factory building carries out the waste heat discharge by the spray of the stored water of the non-passive safety shell cooling water tank at shielding factory building top.The present invention uses top cooling water tank and steel pipe column to carry out retaining, and pondage is bigger, even cooling water tank valve in top can't be opened under accident conditions, also can cool off evaporation of water realization non-active cooling to a certain degree by intercolumniation;
Ring-shaped distributed steel pipe column group forms a group structure, is conducive to safety of structure greatly.
Description of drawings
Fig. 1 is the non-active double containment longitudinal diagram of band retaining steel pipe column described in the utility model;
Fig. 2 is the metal containment longitudinal diagram;
Fig. 3 is metal containment body cross-section figure;
Fig. 4 is metal containment cover head vertical view;
Among the figure: 1, metal containment; 2, intercolumniation chilled water; 3, containment inner structure; 4, outer panel; 5, base plate; 6, top board; 7, top cooling water tank; 8, top chilled water; 9, lower air inlet; 10, upper discharge hole; 11, air baffle; 12, assignment of traffic dish; 13, metal containment main body; 14, cover head; 15, bottom (head); 16, retaining steel pipe column; 17, intercolumniation plate; 18, semicircle trough girder; 19, plate between beam; 20, cover head top board; 21, trough girder stiffener.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1, the non-active double containment of band retaining steel pipe column described in the utility model comprises metal containment 1, intercolumniation chilled water 2, outer panel 4, base plate 5, top board 6, top cooling water tank 7, top chilled water 8, lower air inlet 9, upper discharge hole 10, air baffle 11, assignment of traffic dish 12;
As shown in Figure 2, described metal containment 1 is made up of the metal containment main body 13 of cylindrical tube shape and cover head 14 and the bottom (head) 15 of two ends semielliptical shape thereof, and its main part diameter is about 40m, and overall height is about 60m, and the used thickness of steel product of each several part is about 4.5cm; Metal containment 1 is connected with base plate 5 by metal containment bottom (head) 15;
As shown in Figure 3, described metal containment main body 13 by the retaining steel pipe column 16 of evenly arranging and between intercolumniation plate 17 form; Intercolumniation chilled water 2 is stored in the retaining steel pipe column 16; The quantity of described retaining steel pipe column 16 is 16, evenly arranges around metal containment 1 planar central with 22.5 ° of spacings; Retaining steel pipe column 16 is the band edge of a wing weldless steel tubes that formed by the steel overall perfusion, and the purpose on the edge of a wing is to be convenient to and 17 welding of intercolumniation plate; Retaining steel pipe column 16 diameters are 1m, and kiss-coating is again carried out after the preservative treatment in its inboard, with anti-corrosion.
As shown in Figure 4, described cover head 14 is the semielliptical shape of being made up of plate 19, cover head top board 20 and trough girder stiffener 21 between semicircle trough girder 18, beam; The lower end of semicircle trough girder 18 and the welding of corresponding retaining steel pipe column 16 upper ends, the upper end of semicircle trough girder 18 and 20 welding of cover head top board, the side of semicircle trough girder 18 connects by plate between beam 19, the upper end of plate 19 and 20 welding of cover head top board between beam, the lower end of plate 19 and corresponding intercolumniation plate 17 welding between beam; Trough girder stiffener 21 is welded on the semicircle trough girder 18, and the plane of trough girder stiffener 21 is perpendicular to semicircle trough girder 18 axis.
The internal diameter of described outer panel 4 is than the big 3m of diameter of metal containment 1, external diameter than the big 2.2m of internal diameter about, highly (count from the end face of base plate 5) and be about 55m; Described outer panel 4 is cylinder-like structures that inside has stainless steel lining, applied ring orientation prestress, had strong structural-load-carrying capacity and radiation shield ability; Described top cooling water tank 7 is supported on the top board 6, adopts the steel plate concrete structure, and steel plate thickness is got 4.5cm, and its capacity is about 3000 tons; Described intercolumniation chilled water 2 is the cooling fresh water that injects retaining steel pipe column 16; Described containment inner structure 3 refers to be seated various structures and the equipment in the metal containment 1; The main effect of described base plate 5 is the bases as double containment, and prevents that radiomaterial is to underground diffusion under the accident conditions; Described top board 6 is as the shielding of metal containment 1 upside, and support top cooling water tank 7; Described top cooling water tank 7 is supported on the top board 6, is used for storing top chilled water 8; Described top chilled water 8 is positioned at top cooling water tank 7, is used for the non-active cooling under the accident conditions; Described lower air inlet 9 is used for importing cold air under the accident conditions; Described upper discharge hole 10 is used for discharging hot-air under the accident conditions; Described air baffle 11 is used for the flow direction of guiding air under the accident conditions; Described assignment of traffic dish 12 is used for distributing the top chilled water under the accident conditions;
When the utility model uses, arrange reinforcing bar and the template of base plate 5 earlier, the bottom (head) 15 of metal containment 1 firmly is connected with the reinforcing bar of base plate 5, subsequently bottom board 5 concrete; Again by the annexation of each parts, layering is progressively built afterwards.After the utility model is finished by aforementioned order of connection construction, inject intercolumniation chilled water 2 and top chilled water 8 respectively to retaining steel pipe column 16 and top cooling water tank 7.Under accident conditions, the valve opening of top cooling water tank 7, top chilled water 8 evenly is sprayed on the metal containment 1 by assignment of traffic dish 12, and simultaneously, intercolumniation chilled water 2 start vaporizers generate water vapour.Under air baffle 11 guiding, cold air is introduced from the bottom, takes away water vapor, and water vapor is discharged from the space of 7 of upper discharge hole 10 and top cooling water tanks, and takes away waste heat.By the intrinsic physical characteristics of water and air, the utility model can enter the waste heat that generates under the accident conditions in the atmosphere fast, thus the probability that serious accidents such as minimizing fusible core take place.
Claims (9)
1. non-active double containment with the retaining steel pipe column, it is characterized in that: this containment comprises metal containment (1), outer panel (4), base plate (5), top board (6), top cooling water tank (7), top chilled water (8), lower air inlet (9), upper discharge hole (10), air baffle (11), assignment of traffic dish (12);
Described base plate (5) is seated on the ground; Metal containment (1) is seated on the base plate (5); The arranged outside of metal containment (1) has outer panel (4), and outer panel (4) is seated on the base plate (5); Outer panel (4) is provided with top board (6), and top cooling water tank (7) is seated top board (6) upward and is positioned at directly over the metal containment (1); Top chilled water (8) is stored in the top cooling water tank (7); Lower air inlet (9) and upper discharge hole (10) are positioned on the outer panel (4); Assignment of traffic dish (12) hangs and is welded on the top board (6), and is positioned between top cooling water tank (7) and the metal containment (1); Air baffle (11) is welded on outer panel (4) inboard.
2. the non-active double containment of band retaining steel pipe column according to claim 1, it is characterized in that: described metal containment (1) is made up of the metal containment main body (13) of cylindrical tube shape and cover head (14) and the bottom (head) (15) of two ends semielliptical shape thereof, and metal containment (1) is connected with base plate (5) by bottom (head) (15).
3. the non-active double containment of band retaining steel pipe column according to claim 2 is characterized in that: described metal containment main body (13) by the retaining steel pipe column (16) of evenly arranging and between intercolumniation plate (17) form.
4. the non-active double containment of band retaining steel pipe column according to claim 3 is characterized in that: store intercolumniation chilled water (2) in the described retaining steel pipe column (16).
5. the non-active double containment of band retaining steel pipe column according to claim 3, it is characterized in that: the quantity of described retaining steel pipe column (16) is 16, evenly arranges around metal containment (1) planar central with 22.5 ° of spacings.
6. the non-active double containment of band retaining steel pipe column according to claim 3, it is characterized in that: described retaining steel pipe column (16) is the band edge of a wing weldless steel tube that is formed by the steel overall perfusion, kiss-coating is again carried out after the preservative treatment in its inboard.
7. the non-active double containment of band retaining steel pipe column according to claim 3 is characterized in that: the semielliptical shape of described cover head (14) for being made up of plate (19), cover head top board (20) and trough girder stiffener (21) between semicircle trough girder (18), beam; The lower end of semicircle trough girder (18) and the welding of corresponding retaining steel pipe column (16) upper end, the upper end of semicircle trough girder (18) and cover head top board (20) welding, the side of semicircle trough girder (18) connects by plate (19) between beam, the upper end of plate between beam (19) and cover head top board (20) welding, the lower end of plate between beam (19) and corresponding intercolumniation plate (17) welding; Trough girder stiffener (21) is welded on the semicircle trough girder (18), and the plane of trough girder stiffener (21) is perpendicular to semicircle trough girder (18) axis.
8. the non-active double containment of band retaining steel pipe column according to claim 1 is characterized in that: described outer panel (4) is the cylinder-like structure that inside has stainless steel lining, applied ring orientation prestress, had strong structural-load-carrying capacity and radiation shield ability.
9. the non-active double containment of band retaining steel pipe column according to claim 1, it is characterized in that: described outer panel (4) is connected by joint bar with base plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200166525U CN203070784U (en) | 2013-01-14 | 2013-01-14 | Non-active double layer containment with water storage steel pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200166525U CN203070784U (en) | 2013-01-14 | 2013-01-14 | Non-active double layer containment with water storage steel pipe column |
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| Publication Number | Publication Date |
|---|---|
| CN203070784U true CN203070784U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200166525U Expired - Lifetime CN203070784U (en) | 2013-01-14 | 2013-01-14 | Non-active double layer containment with water storage steel pipe column |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761994A (en) * | 2014-01-03 | 2014-04-30 | 上海交通大学 | Spent fuel tank passive after-heat removing system based on water cooling heat pipes |
| CN103928063A (en) * | 2013-01-14 | 2014-07-16 | 上海核工程研究设计院 | Non-active double-layer containment with water storage steel pipe column |
-
2013
- 2013-01-14 CN CN2013200166525U patent/CN203070784U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928063A (en) * | 2013-01-14 | 2014-07-16 | 上海核工程研究设计院 | Non-active double-layer containment with water storage steel pipe column |
| CN103928063B (en) * | 2013-01-14 | 2017-02-22 | 上海核工程研究设计院 | Non-active double-layer containment with water storage steel pipe column |
| CN103761994A (en) * | 2014-01-03 | 2014-04-30 | 上海交通大学 | Spent fuel tank passive after-heat removing system based on water cooling heat pipes |
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