CN204242600U - The outside steel containment vessel energy management system often flooded - Google Patents
The outside steel containment vessel energy management system often flooded Download PDFInfo
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- CN204242600U CN204242600U CN201420699037.3U CN201420699037U CN204242600U CN 204242600 U CN204242600 U CN 204242600U CN 201420699037 U CN201420699037 U CN 201420699037U CN 204242600 U CN204242600 U CN 204242600U
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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 the steel containment vessel energy management system often flooded a kind of outside, comprise and flood pond and constrain pond, constrain pond to be located in containment and to be arranged along pressure vessel, in constrain pond, there is chilled water and be communicated with the inner space of containment, it is for suppressing the rising of pressure in containment, containment is placed in and floods in pond and below the liquid level being submerged in the chilled water flooded in pond, flood pond for the heat in containment is exported to airspace.During accident, the steam in containment and the potpourri of air enter constrain pond and are cooled because of pressure reduction, thus suppress the rising of pressure in containment rapidly; Steam simultaneously in containment is in the inwall condensation of containment, and heat passes to the chilled water outside containment by the wall of containment, by water loss, heat is drained into airspace ultimate heat sink.Can the complete non-active discharge realizing heat in reactor core and containment in whole process after accident, the greatly possibility of reduction thrashing.
Description
Technical field
The utility model relates to nuclear plant safety apparatus field, particularly relates to a kind of non-active steel containment vessel energy management system.
Background technology
The use of nuclear power is the important breakthroughs of the mankind in energy utilization history, utilize nuclear fission reaction, the incomparable high-energy of other all traditional fossil energy can be produced export, and these high-energy export often only to be needed to expend a small amount of nuclear fuel, the characteristic of this low input high production, makes mankind's pay attention to day by day to the utilization of nuclear energy, and continues to increase the research and development in nuclear energy field, even to this day, nuclear energy has become the important energy source ingredient of many countries in the world.But; while nuclear power has high value, also may bring very large harm, in the process utilizing nuclear power; if protect improper and cause major accidents such as occurring nuclear leakage, extremely serious nuclear pollution disaster will be brought to the environment of nuclear power plant's periphery and even the whole mankind.
Wherein, containment is the important safety facility of nuclear power plant reactor, is to prevent radioactive product to be discharged into last one barrier in atmospheric environment.In the pressurized-water reactor nuclear power plant of active service, for deriving the heat in containment, the active system of some employings realizes, active system is under the accident conditionses such as whole audience power-off, need the intervention of operator and adopt expensive Emergency diesel, this increases the risk of operator's error on the one hand, considerably increases number of devices on the other hand, increase the expense of equipment purchase, installation, operation and maintenance etc. thus, the construction cost of corresponding increase nuclear power plant and operation and maintenance expenses are used.For this reason, in reactor of new generation, the non-active cooling means of containment is proposed, wherein one adopts steel containment vessel, in outer setting water tank and the spray system of steel containment vessel, after reactor accident occurs, by opening the valve of spray system, the water cloth in water tank is made to be spread across the outside of steel containment vessel, the heat in containment is taken away by evaporation or convection current, therefore, the moisture film of containment outside steel wall is most important to its exchange capability of heat, but can moisture film effectively take on a certain scale and in the field of businessly extremely to query always; And steel containment vessel needs very large free volume, the physical dimension of containment requires very large, and this is corresponding adds construction cost.
Therefore, be necessary to provide a kind of containment dimensional requirement little, can under accident conditions the steel containment vessel energy management system of non-heat of deriving in containment actively, to solve above-mentioned the deficiencies in the prior art.
Utility model content
The purpose of this utility model be to provide a kind of containment dimensional requirement little, can under accident conditions the steel containment vessel energy management system of non-heat of deriving in containment actively.
For achieving the above object, the technical solution of the utility model is: provide the steel containment vessel energy management system that a kind of outside is often flooded, it comprises and floods pond and constrain pond, described constrain pond to be located in containment and to be arranged along pressure vessel, in described constrain pond, there is chilled water and be communicated with the inner space of described containment, described constrain pond is for suppressing the rising of pressure in described containment, to flood described in described containment is placed in pond and below the liquid level flooding the chilled water in pond described in being submerged in, described pond of flooding is for exporting to airspace by the heat in described containment.
Preferably, described constrain pond is separated into the exhaust passage and water storage space that are interconnected, and described exhaust passage is communicated with the inner space of described containment.
Preferably, described constrain pond has inwall separately and outer wall, dividing plate is provided with between described inwall and described outer wall, and between the bottom in described dividing plate and described constrain pond, there is gap, form described exhaust passage between described dividing plate and described inwall, between described dividing plate and described outer wall, form described water storage space.
Preferably, the gap between the bottom of described dividing plate and the bottom in described constrain pond forms the circulation passage being communicated with described exhaust passage and described water storage space.
Preferably, multiple circulation passage being communicated with described exhaust passage and described water storage space is separately provided with between the bottom of described dividing plate and the bottom in described constrain pond.
Preferably, the chilled water in described constrain pond floods described circulation passage.
Preferably, described constrain pond is arranged ringwise along described pressure vessel, and described exhaust passage is near described pressure vessel.
Preferably, described in flood pond be communicated with airspace, flood in the chilled water in pond described in the heat in described containment is exported to by the wall of described containment, described in the chilled water flooded in pond heat is exported to airspace.
Preferably, flooding pond described in adopts concrete or metal to make.
Compared with prior art, due to the steel containment vessel energy management system that outside of the present utility model is often flooded, comprise and flood pond and constrain pond, described constrain pond to be located in containment and to be arranged along pressure vessel, in described constrain pond, there is chilled water and be communicated with the inner space of described containment, described constrain pond is for suppressing the rising of pressure in described containment, to flood described in described containment is placed in pond and below the liquid level flooding the chilled water in pond described in being submerged in, described pond of flooding is for exporting to airspace by the heat in described containment.When high energy pipeline breaking in containment, the steam in containment and the potpourri of air enter constrain pond and are cooled due to pressure reduction, thus suppress the rising of pressure in containment rapidly, enhance the security of reactor; Steam simultaneously in containment is in the inwall condensation of containment, heat passes to the chilled water flooded in pond outside containment by the wall of containment, the cooling water temperature flooded in pond raises and seethes with excitement, and by water loss, heat is drained into airspace ultimate heat sink.Therefore, can the complete non-active discharge realizing heat in reactor core and containment in whole process after accident, reduce the possibility of thrashing greatly, and the control of temperature and pressure in containment under accident can be realized without the need to building very large steel containment vessel, reduce the construction cost of nuclear power plant; In addition, under design basis accident and beyond design basis accident, all without the need to factory's internal/external power, Operator actions and emergency equipment, reduce the risk of operator's error on the one hand, greatly reduce number of devices on the other hand, thus reduce the expenses such as equipment purchase, installation, operation and maintenance, the construction cost of corresponding minimizing nuclear power plant and operation and maintenance expenses are used.
Accompanying drawing explanation
Fig. 1 is the structural representation of the steel containment vessel energy management system that the utility model outside is often flooded.
Fig. 2 is the using state schematic diagram of Fig. 1.
Fig. 3 is another using state schematic diagram of Fig. 1.
Embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, element numbers similar in accompanying drawing represents similar element.The steel containment vessel energy management system 100 that outside provided by the utility model is often flooded, can the complete non-active discharge realizing heat in reactor core and containment 110 in the whole process after accident.
As shown in Figure 1, the steel containment vessel energy management system 100 that outside provided by the utility model is often flooded, it comprises containment 110, be located at the reactor pressure vessel 120 in containment 110, constrain pond 130 and be located at and flood pond 140 outside containment 110, described constrain pond 130 to be located in containment 110 and to be arranged along pressure vessel 120, in described constrain pond 130, there is chilled water and be communicated with the inner space of described containment 110, described constrain pond 130 is for suppressing the rising of pressure in containment 110, to flood described in described containment 110 is placed in pond 140 and below the liquid level flooding the chilled water in pond 140 described in being submerged in, described pond 140 of flooding is for exporting to airspace by the heat in described containment 110.
Particularly, described containment 110 is steel design, and major equipment such as reactor pressure vessel 120 grade contains therein by it, forms the barrier preventing radiomaterial from discharging.In the utility model, under accidental conditions, in containment 110, vacuum state can be in, the thermal loss caused to function of environment heat emission with the wall weakening containment 110; After accident, the metal wall of containment 110 becomes good heat-transfer surface, to be derived outside containment 110 by the heat of containment 110 inside.
Continue referring to shown in Fig. 1, described constrain pond 130 is arranged along pressure vessel 120, and structure ringwise, constrain pond 130 is separated into the exhaust passage 134 and water storage space 135 that are interconnected, described exhaust passage 134 is communicated with the inner space of containment 110, all there is chilled water in exhaust passage 134, water storage space 135, when high energy pipeline breaking in containment 110, steam in containment 110 and the potpourri of air enter constrain pond 130 due to pressure reduction by exhaust passage 134 and are cooled, thus suppress the rising of pressure in containment 110.
Particularly, described constrain pond 130 has inwall 131 separately and outer wall 132, inwall 131 is near pressure vessel 120, outer wall 132 is the sidewall of containment 110, dividing plate 133 is provided with between described inwall 131 and outer wall 132, and between the bottom in dividing plate 133 and constrain pond 130, there is certain interval, and between dividing plate 133 and inwall 131, form described exhaust passage 134, form described water storage space 135 between dividing plate 133 and outer wall 132; Gap between the bottom of described dividing plate 133 and the bottom in constrain pond 130 forms the circulation passage 136 being communicated with described exhaust passage 134 and water storage space 135, and after injecting chilled water in constrain pond 130, chilled water floods circulation passage 136.During accident, steam in containment 110 and the potpourri of air enter constrain pond 130 by exhaust passage 134, water storage space 135 is entered again by circulation passage 136, the potpourri of steam and air obtains the cooling of chilled water, thus suppresses the rising of pressure in described containment 110 rapidly by constrain pond 130.
Preferably, circulation passage 136 between the bottom of described dividing plate 133 and the bottom in constrain pond 130 is not limited to only arrange one, also can arrange multiple at intervals, and multiple circulation passage 136 is along the short transverse setting separately in constrain pond 130, to ensure the stability that constrain pond 130 works.
Understandably, the outer wall 132 in described constrain pond 130 can be the sidewall of containment 110, also can independently arrange in addition, this technology be well known to those skilled in the art.
Again referring to shown in Fig. 1, flooding pond 140 adopts concrete or metal enclosure make around containment 110 and can hold chilled water, floods the top of top higher than containment 110 in pond 140, and described in flood pond 140 in uncovered setting, that is, flood pond 140 and be communicated with airspace; In normal reactor operation process, flood in pond 140 and be full of chilled water, make containment 110 outside be submerged in below the liquid level of chilled water completely, namely containment 110 is in and often floods state.After accident, flood in the chilled water in pond 140 described in heat in containment 110 is exported to by the wall of described containment 110, heat is exported to airspace by the described chilled water flooded in pond 140, becomes the hot trap of the non-active cooling of reliable containment 110.
Shown in Fig. 1-Fig. 3, the course of work of the steel containment vessel energy management system 100 that the utility model outside is often flooded is described.
When there is primary Ioops cut or secondary circuit cut accident in containment 110 in nuclear power plant, pressure in containment 110 raises rapidly, steam in containment 110 and the potpourri of air enter constrain pond 130 by exhaust passage 134, and enter water storage space 135 by circulation passage 136 thus cooled, therefore the rising of pressure in containment 110 can be suppressed rapidly by constrain pond 130, as shown in Figure 2.
Meanwhile, a large amount of water vapor is full of the inner space of containment 110, the wall of containment 110 plays the heat rejection function to environment gradually, steam in containment 110 is in the inwall condensation of containment 110, thus the chilled water flooded in pond 140 transferred heat to outside containment 110, after certain hour, the temperature of the chilled water flooded in pond 140 outside containment 110 is increased to boiling, by water loss, heat is discharged to airspace ultimate heat sink, by non-for the heat in containment 110 active discharge, shown in Fig. 2.
As shown in Figure 3, at the long periods of accident, the pressure of the pressure in constrain pond 130 and containment 110 inner space reaches balance, now, constrain pond 130 does not recur constrain effect, but now reactor core decay heat reduces greatly, therefore still can ensure that pressure in containment 110 is in controlled range.
In addition, the long periods of accident, the water content consumption flooding the chilled water in pond 140 outside containment 110 to a certain extent, because now reactor core decay heat reduces greatly, therefore also can be taken away the heat in containment 110 by the natural convection of extraneous air, still can realize the non-active discharge to the heat in containment 110.
The utility model by constrain pond 130, steel containment vessel 110, flood pond 140 and match, can the complete non-active discharge realizing reactor core and containment 110 heat in whole process after guarantee accident.
Due to the steel containment vessel energy management system 100 that outside of the present utility model is often flooded, comprise and flood pond 140 and constrain pond 130, described constrain pond 130 to be located in containment 110 and to be arranged along pressure vessel 120, in described constrain pond 130, there is chilled water and be communicated with the inner space of described containment 110, described constrain pond 130 is for suppressing the rising of pressure in described containment 110, to flood described in described containment 110 is placed in pond 140 and below the liquid level flooding the chilled water in pond 140 described in being submerged in, described pond 140 of flooding is for exporting to airspace by the heat in described containment 110.When high energy pipeline breaking in containment 110, the steam in containment 110 and the potpourri of air enter constrain pond 130 and are cooled due to pressure reduction, thus suppress the rising of pressure in containment 110 rapidly, enhance the security of reactor; Steam simultaneously in containment 110 is in the inwall condensation of containment 110, heat passes to the chilled water flooded in pond 140 outside containment 110 by the wall of containment 110, the cooling water temperature flooded in pond 140 raises and seethes with excitement, and by water loss, heat is drained into airspace ultimate heat sink.Therefore, can the complete non-active discharge realizing heat in reactor core and containment 110 in whole process after accident, reduce the possibility of thrashing greatly, and the control of temperature and pressure in containment 110 under accident can be realized without the need to building very large steel containment vessel 110, reduce the construction cost of nuclear power plant; In addition, under design basis accident and beyond design basis accident, all without the need to factory's internal/external power, Operator actions and emergency equipment, reduce the risk of operator's error on the one hand, greatly reduce number of devices on the other hand, thus reduce the expenses such as equipment purchase, installation, operation and maintenance, the construction cost of corresponding minimizing nuclear power plant and operation and maintenance expenses are used.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (9)
1. the steel containment vessel energy management system that often floods of an outside, it is characterized in that: comprise and flood pond and constrain pond, described constrain pond to be located in containment and to be arranged along pressure vessel, in described constrain pond, there is chilled water and be communicated with the inner space of described containment, described constrain pond is for suppressing the rising of pressure in described containment, to flood described in described containment is placed in pond and below the liquid level flooding the chilled water in pond described in being submerged in, described in flood pond for the heat in described containment is exported to airspace.
2. the outside steel containment vessel energy management system often flooded as claimed in claim 1, is characterized in that: described constrain pond is separated into the exhaust passage and water storage space that are interconnected, and described exhaust passage is communicated with the inner space of described containment.
3. the outside steel containment vessel energy management system often flooded as claimed in claim 2, it is characterized in that: described constrain pond has inwall separately and outer wall, dividing plate is provided with between described inwall and described outer wall, and between the bottom in described dividing plate and described constrain pond, there is gap, form described exhaust passage between described dividing plate and described inwall, between described dividing plate and described outer wall, form described water storage space.
4. the outside steel containment vessel energy management system often flooded as claimed in claim 3, is characterized in that: the gap between the bottom of described dividing plate and the bottom in described constrain pond forms the circulation passage being communicated with described exhaust passage and described water storage space.
5. the outside steel containment vessel energy management system often flooded as claimed in claim 3, is characterized in that: be provided with multiple circulation passage being communicated with described exhaust passage and described water storage space separately between the bottom of described dividing plate and the bottom in described constrain pond.
6. the steel containment vessel energy management system that the outside as described in claim 4 or 5 is often flooded, is characterized in that: the chilled water in described constrain pond floods described circulation passage.
7. the outside steel containment vessel energy management system often flooded as claimed in claim 2, is characterized in that: described constrain pond is arranged ringwise along described pressure vessel, and described exhaust passage is near described pressure vessel.
8. the outside steel containment vessel energy management system often flooded as claimed in claim 1, it is characterized in that: described in flood pond be communicated with airspace, flood in the chilled water in pond described in heat in described containment is exported to by the wall of described containment, described in the chilled water flooded in pond heat is exported to airspace.
9. the as claimed in claim 1 outside steel containment vessel energy management system often flooded, is characterized in that: described in flood pond and adopt concrete or metal to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420699037.3U CN204242600U (en) | 2014-11-20 | 2014-11-20 | The outside steel containment vessel energy management system often flooded |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420699037.3U CN204242600U (en) | 2014-11-20 | 2014-11-20 | The outside steel containment vessel energy management system often flooded |
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| CN204242600U true CN204242600U (en) | 2015-04-01 |
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| CN201420699037.3U Active CN204242600U (en) | 2014-11-20 | 2014-11-20 | The outside steel containment vessel energy management system often flooded |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409111A (en) * | 2014-11-20 | 2015-03-11 | 中科华核电技术研究院有限公司 | Energy control system for externally-often-submerged steel safety shell |
| CN104934076A (en) * | 2015-06-17 | 2015-09-23 | 中科华核电技术研究院有限公司 | Two-stage suppression containment vessel and suppression pool system thereof |
| CN106409357A (en) * | 2016-11-16 | 2017-02-15 | 中广核研究院有限公司 | Reactor with passive reactor core waste heat emission function |
| RU2797256C2 (en) * | 2020-12-21 | 2023-06-01 | федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский ядерный университет "МИФИ" (НИЯУ МИФИ) | Device of the first loop of a double-loop nuclear power plant |
-
2014
- 2014-11-20 CN CN201420699037.3U patent/CN204242600U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409111A (en) * | 2014-11-20 | 2015-03-11 | 中科华核电技术研究院有限公司 | Energy control system for externally-often-submerged steel safety shell |
| CN104934076A (en) * | 2015-06-17 | 2015-09-23 | 中科华核电技术研究院有限公司 | Two-stage suppression containment vessel and suppression pool system thereof |
| CN106409357A (en) * | 2016-11-16 | 2017-02-15 | 中广核研究院有限公司 | Reactor with passive reactor core waste heat emission function |
| CN106409357B (en) * | 2016-11-16 | 2018-10-23 | 中广核研究院有限公司 | A kind of reactor with the discharge of passive residual heat of nuclear core |
| RU2797256C2 (en) * | 2020-12-21 | 2023-06-01 | федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский ядерный университет "МИФИ" (НИЯУ МИФИ) | Device of the first loop of a double-loop nuclear power plant |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 518000 Guangdong province Futian District Shangbu Road West of the city of Shenzhen Shenzhen science and technology building 15 layer (1502-1504, 1506) Patentee after: CHINA NUCLEAR POWER TECHNOLOGY RESEARCH INSTITUTE Patentee after: China General Nuclear Power Corporation Patentee after: China wide nuclear electricity incorporated company Address before: 518000 Guangdong province Futian District Shangbu Road West of the city of Shenzhen Shenzhen science and technology building 15 layer (1502-1504, 1506) Patentee before: Zhongkehua Nuclear Power Technology Institute Co., Ltd. Patentee before: China General Nuclear Power Corporation Patentee before: China wide nuclear electricity incorporated company |