CN105632570A - Reactor shielding, coolant pressure relief and containment suppression compound device - Google Patents
Reactor shielding, coolant pressure relief and containment suppression compound device Download PDFInfo
- Publication number
- CN105632570A CN105632570A CN201410719383.8A CN201410719383A CN105632570A CN 105632570 A CN105632570 A CN 105632570A CN 201410719383 A CN201410719383 A CN 201410719383A CN 105632570 A CN105632570 A CN 105632570A
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- containment
- shielding
- constrain
- reactor
- shielding layer
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- 239000002826 coolant Substances 0.000 title claims abstract description 40
- 230000001629 suppression Effects 0.000 title abstract 6
- 150000001875 compounds Chemical class 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000006424 Flood reaction Methods 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 235000010044 Hernandia moerenhoutiana Nutrition 0.000 description 1
- 244000084296 Hernandia moerenhoutiana Species 0.000 description 1
- 206010037211 Psychomotor hyperactivity Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004223 radioprotective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a reactor shielding, coolant pressure relief and containment suppression compound device. The reactor shielding, coolant pressure relief and containment suppression compound device comprises a ring-shaped shielding layer which is arranged in a containment, surrounds a pressure vessel and adopts a closed structure, the housing of the ring-shaped shielding layer comprises shielding steel plates, and the ring-shaped shielding layer accommodates shielding water and is provided with a suppression pipeline used for communication between the atmosphere of the containment and the shielding water, and the ring-shaped shielding layer is also provided with a pressure relief pipeline used for leading a coolant in the pressure vessel into the shielding water and a water drainage pipe used for discharging water into a reactor cavity. The reactor shielding, coolant pressure relief and containment suppression compound device can achieve the functions of reactor shielding, coolant pressure relief, containment suppression and water discharge into the reactor cavity.
Description
Technical field
The present invention relates to the shielding construction around reactor pressure vessel (RPV), particularly to a kind of, there is the set composite that reactor shielding, coolant release and containment are constrain.
Background technology
In business pressurized-water reactor nuclear power plant, the screen layer around reactor pressure vessel (RPV) is substantially xoncrete structure. Reactor shielding can reduce the various radioprotective coming autothermal reactor source, and by weakening the neutron fluence rate from reactor core, prevents the parts outside concrete shield and structure by overactivity. In marinereactor shielding design, also there are employing steel-water mixed structure or other structure (such as mixing heavy metal or neutron absorption composite material etc.).
In the reactor design arranging small-sized safety shell, although reactor shielding can adopt conventional concrete design, but for multiplexing screen layer space more fully, it is achieved the multiple utilization of shielding material, it is necessary to carry out novel screen layer and design.
Small-sized safety shell is for presurized water reactor, and after containment accommodation accident, the ability of Mass and energy release is relatively small, secondly also cannot individually arrange the large pool constrain for coolant release and containment in containment. Additionally, cause that coolant spurts in the accident of (LOCA) at generator tube road cut, it is necessary to flood heap chamber and cover break location, but water source is likely to deficiency.
Owing to business presurized water reactor is Large dry containment mostly, this respect design rarely has precedent. And warship marine PWR, although be likely to arrange the shielding of steel-water-bound, but for coolant release, containment constrain etc. be likely to consider less. Therefore the present invention arranges the shielding of steel-water-bound, shielding poind also serves as the constrain pond of containment and coolant release pond simultaneously, and shield water can be spilled over to heap intracavity, thus the space of comprehensive multiplexing shielding poind and material, and part realizes the function of security system.
Summary of the invention
For the problems referred to above, the present invention provides the set composite that a kind of reactor shielding, coolant release and containment are constrain, suitable in the shielding in small-sized safety shell and safe design, it is achieved the multiplexing of shielding space and shielding material, and part realizes the function of security system. This cover system device layout is compact, takes up space little, arranges simple and easy, and economy is high.
To achieve these goals, technical scheme is as follows:
The set composite that reactor shielding, coolant release and containment are constrain, it is characterized in that, including the ring shielding layer being arranged in containment and be looped around around pressure vessel, described ring shielding layer is enclosed construction, the shell of described ring shielding layer is shielding steel plate, ring shielding layer is built with shield water, and described ring shielding layer is provided with to connect the constrain pipeline of containment air and shield water; Described ring shielding layer is provided with and the coolant in pressure vessel leads to the pressure relief pipeline of described shield water and shield water is discharged into the drain pipe in heap chamber.
In a preferred embodiment of the invention, described ring shielding layer, radially from interior be the mixed structure of steel plate, water, steel plate outward.
In a preferred embodiment of the invention, described ring shielding layer is including at least one layer of sidewall shielding steel plate and one layer of shield water.
In a preferred embodiment of the invention, described ring shielding layer, steel plate thickness is 10-50cm, and water thickness is 20-100cm.
In a preferred embodiment of the invention, the shell of ring shielding layer is stretched out in one end of described constrain pipeline, and the other end stretches in shield water. Further, described constrain pipeline is provided with sprinkler in the one end stretching into shield water.
In a preferred embodiment of the invention, described pressure relief pipeline is provided with the bubbler of pressure-relief valve group and end.
In a preferred embodiment of the invention, one end of described drain pipe is stretched in shield water, and the other end of drain pipe stretches out the shell of ring shielding layer and is positioned on shield water horizontal plane.
The present invention provides the set composite that a kind of reactor shielding, coolant release and containment are constrain, can as the important component part of the primary shielding of small-sized safety shell and security system. This covering device realizes the multiplexing of shielding space and shielding material, and part realizes the function of security system. This cover system device layout is compact, takes up space little, arranges simple and easy, and economy is high.
The present invention can realize reactor shielding function, coolant pressure relief, and the constrain function of containment, to the function of heap chamber draining.
The feature of the present invention see graphic and better embodiment below the detailed description of this case and obtains and be well understood to.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention.
Wherein, 1-pressure vessel; 2-containment; 3-ring shielding layer; 4-sidewall shielding steel plate; 5-vertically shields steel plate; 6-vertically shields steel plate; 7-top shielding steel plate; 8-shield water; 9-air; The constrain pipeline of 10-; 11-sprinkler; 12-drain pipe; 13-pressure relief pipeline; 14-pressure-relief valve group; 15-bubbler.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, the present invention is expanded on further below in conjunction with specific embodiment.
Referring to Fig. 1, the set composite that reactor shielding, coolant release and containment are constrain, including the ring shielding layer 3 being arranged in containment 2 and be looped around around pressure vessel 1, ring shielding layer 3 is enclosed construction, the shell of ring shielding layer 3 is shielding steel plate, and the shell of ring shielding layer 3 includes top steel plate shielding 7, sidewall shielding steel plate 4 and multilamellar and vertically shields steel plate (5,6). Vertically shielding steel plate 5 in ring shielding layer 3 leaves gap.
Ring shielding layer 3, built with (or comprising) shield water 8, the whole cavity of shield water 8 underfill, arranged above with air 9, is maintained at an atmospheric pressure state. Ring shielding layer 3 is provided with to connect the constrain pipeline 10 of containment air and shield water 8; The shell of ring shielding layer 3 is stretched out in one end of constrain pipeline 10, and the other end stretches in shield water 8. The shielding water end (W.E.) of constrain pipeline is provided with sprinkler 11.
Ring shielding layer 3 is provided with the pressure relief pipeline 13 that the coolant in pressure vessel leads to described shield water, and pressure relief pipeline 13 is provided with the bubbler 15 of pressure-relief valve group 14 and end.
Ring shielding layer 3 is provided with the drain pipe 12 that shield water is discharged into heap chamber. Drain pipe can be the water pipe of " 7 " font, and one end of drain pipe 12 is stretched in shield water 8, and the other end of drain pipe 12 stretches out the shell of ring shielding layer 3 and is positioned on shield water 8 horizontal plane.
Showing by calculating, the present invention can play good shielding action, it is possible to substitutes the concrete shield structure of tradition reactor. It is arranged in pressure vessel periphery, forms heap chamber, effectively shields the radiation from reactor core and coolant.
The constrain function of containment of this device is achieved by: when there is cut LOCA accident, coolant spurts to containment so that be full of the steam of High Temperature High Pressure in containment. The ring shielding layer 3 formed by shielding steel plate is one and seals structure, and internal pressure is not followed containment pressure and synchronized to raise. Therefore in containment, superheated vapor will pass through constrain pipeline 10 and enters shield water 8, condenses in shield water 8, thus suppressing pressure in containment to rise. For improving constrain effect, in containment, it is preferably provided as partial vacuum (namely taking partial air away), increase the volume of layer of air on shield water 8 simultaneously.
The coolant pressure relief of this device is achieved by: when needs carry out coolant release, open the relief valve group 14 on pressure relief pipeline 13, reactor coolant is just spurted to shield water 8 by pressure relief pipeline 13 under pressure (coolant pressure be typically much deeper than in containment pressure) drives, condense in shield water 8, thus realizing coolant release. Engineering also should arrange the equipment preventing water hammer etc. on pressure relief pipeline 13.
Effect and the implementation of drain pipe 12 are as follows: no matter be that in containment, superheated vapor enters shield water 8 by constrain pipeline 10, or reactor coolant enters shield water 8 by pressure relief pipeline 13, all can cause that in ring shielding layer 3, pressure raises the rising (particularly with coolant release) with shield water 8 water level. Now, shield water 8 will be overflowed by discharge pipe line (floss hole height is placed against on water level), flows into heap chamber. The pressure of shielding poind will not continue to raise (especially when coolant release) so on the one hand, the more important thing is that the water that heap chamber is spilled off floods gradually on the other hand. And piling chamber, to be submerged in the alleviation of LOCA accident be very important.
From the above it can be seen that due to the relation of the position of drain pipe 12 and shield water 8 water level, after the high temperature coolant run out of by pressure relief pipeline 13 is condensed in shield water 8, the overwhelming majority enters heap chamber by drain pipies 12. And in pressure vessel, have abundant coolant to be flooded completely in heap chamber.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described. Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; simply principles of the invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within claimed the scope of the present invention. The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (8)
1. the set composite that reactor shielding, coolant release and containment are constrain, it is characterized in that, including the ring shielding layer being arranged in containment and be looped around around pressure vessel, described ring shielding layer is enclosed construction, the shell of described ring shielding layer is shielding steel plate, ring shielding layer is built with shield water, and described ring shielding layer is provided with to connect the constrain pipeline of containment air and shield water; Described ring shielding layer is provided with and the coolant in pressure vessel leads to the pressure relief pipeline of described shield water and shield water is discharged into the drain pipe in heap chamber.
2. the set composite that reactor shielding according to claim 1, coolant release and containment are constrain, it is characterised in that described ring shielding layer, radially from interior be the mixed structure of steel plate, water, steel plate outward.
3. the set composite that reactor shielding according to claim 1, coolant release and containment are constrain, it is characterised in that described ring shielding layer is including at least one layer of sidewall shielding steel plate and one layer of shield water.
4. the set composite that reactor shielding according to claim 2, coolant release and containment are constrain, it is characterised in that the steel plate thickness of described ring shielding layer is 10-50cm, and shield water thickness is 20-100cm.
5. the set composite that reactor shielding according to claim 1, coolant release and containment are constrain, it is characterised in that the shell of ring shielding layer is stretched out in one end of described constrain pipeline, and the other end stretches in shield water.
6. the set composite that reactor shielding according to claim 5, coolant release and containment are constrain, it is characterised in that described constrain pipeline is provided with sprinkler in the one end stretching into shield water.
7. the set composite that reactor shielding according to claim 1, coolant release and containment are constrain, it is characterised in that described pressure relief pipeline is provided with the bubbler of pressure-relief valve group and end.
8. the set composite that reactor shielding according to claim 1, coolant release and containment are constrain, it is characterized in that, one end of described drain pipe is stretched in shield water, and the other end of drain pipe stretches out the shell of ring shielding layer and is positioned on shield water horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719383.8A CN105632570A (en) | 2014-12-01 | 2014-12-01 | Reactor shielding, coolant pressure relief and containment suppression compound device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719383.8A CN105632570A (en) | 2014-12-01 | 2014-12-01 | Reactor shielding, coolant pressure relief and containment suppression compound device |
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| CN105632570A true CN105632570A (en) | 2016-06-01 |
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| CN201410719383.8A Pending CN105632570A (en) | 2014-12-01 | 2014-12-01 | Reactor shielding, coolant pressure relief and containment suppression compound device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957565A (en) * | 2016-06-23 | 2016-09-21 | 中广核研究院有限公司 | Suppression pool and safety shell with same |
| CN106098111A (en) * | 2016-06-23 | 2016-11-09 | 中广核研究院有限公司 | Containment with constrain pool construction |
| CN106568887A (en) * | 2016-10-14 | 2017-04-19 | 中国科学院合肥物质科学研究院 | Experimental device for research on hydrogen combustion in nuclear power plant containment shell |
| CN110767329A (en) * | 2019-11-05 | 2020-02-07 | 中国核动力研究设计院 | Pressurized water reactor cavity radiation beam leakage shielding device |
| CN111599492A (en) * | 2020-05-09 | 2020-08-28 | 哈尔滨工程大学 | Press down pipe and applied this suppression pipe's suppression pond |
| CN112071451A (en) * | 2020-09-15 | 2020-12-11 | 哈尔滨工程大学 | Pressurized water reactor multifunctional double-layer concrete containment system |
| CN112071454A (en) * | 2020-09-15 | 2020-12-11 | 哈尔滨工程大学 | Passive combined heat removal system with integrated heat release trap |
| CN112397208A (en) * | 2020-11-13 | 2021-02-23 | 中广核研究院有限公司 | Shield arrangement structure for compactly arranging reactors |
| CN112489824A (en) * | 2020-11-26 | 2021-03-12 | 中广核研究院有限公司 | Reactor cabin shielding device for compactly arranging small reactors |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957565A (en) * | 2016-06-23 | 2016-09-21 | 中广核研究院有限公司 | Suppression pool and safety shell with same |
| CN106098111A (en) * | 2016-06-23 | 2016-11-09 | 中广核研究院有限公司 | Containment with constrain pool construction |
| CN105957565B (en) * | 2016-06-23 | 2018-05-29 | 中广核研究院有限公司 | Constrain pond and the containment with the constrain pond |
| CN106568887A (en) * | 2016-10-14 | 2017-04-19 | 中国科学院合肥物质科学研究院 | Experimental device for research on hydrogen combustion in nuclear power plant containment shell |
| CN110767329A (en) * | 2019-11-05 | 2020-02-07 | 中国核动力研究设计院 | Pressurized water reactor cavity radiation beam leakage shielding device |
| CN111599492A (en) * | 2020-05-09 | 2020-08-28 | 哈尔滨工程大学 | Press down pipe and applied this suppression pipe's suppression pond |
| CN112071451A (en) * | 2020-09-15 | 2020-12-11 | 哈尔滨工程大学 | Pressurized water reactor multifunctional double-layer concrete containment system |
| CN112071454A (en) * | 2020-09-15 | 2020-12-11 | 哈尔滨工程大学 | Passive combined heat removal system with integrated heat release trap |
| CN112397208A (en) * | 2020-11-13 | 2021-02-23 | 中广核研究院有限公司 | Shield arrangement structure for compactly arranging reactors |
| CN112489824A (en) * | 2020-11-26 | 2021-03-12 | 中广核研究院有限公司 | Reactor cabin shielding device for compactly arranging small reactors |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
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