CN102013277A - Decay tank - Google Patents
Decay tank Download PDFInfo
- Publication number
- CN102013277A CN102013277A CN2010102819245A CN201010281924A CN102013277A CN 102013277 A CN102013277 A CN 102013277A CN 2010102819245 A CN2010102819245 A CN 2010102819245A CN 201010281924 A CN201010281924 A CN 201010281924A CN 102013277 A CN102013277 A CN 102013277A
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- CN
- China
- Prior art keywords
- dividing plate
- reactor
- plate
- inner core
- urceolus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract 6
- 239000002826 coolant Substances 0.000 description 11
- 238000003466 welding Methods 0.000 description 6
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
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
Landscapes
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention belongs to the technical field of nuclear reactors, and particularly relates to a decay tank which comprises an upper top plate, a lower bottom plate and an outer cylinder, wherein the upper top plate and the lower end of a steel lining of a reactor pool of a reactor are welded into a whole; a partition board which is arranged in the radial direction is arranged between the middle cylinder and the inner cylinder, wherein one partition board which is close to the water outlet of the inner cylinder is a blind plate, and the rest are flow channel partition boards; and partition plates which are arranged in the radial direction are arranged between the middle barrel and the outer barrel, wherein one partition plate close to the water outlet of the middle barrel is a blind plate, and the rest are flow channel partition plates. The decay box provided by the invention integrates the functions of the reactor body supporting structure and the main loop part in the reactor pool, and reduces the volume of the reactor and the difficulty and complexity of design.
Description
Technical field
The invention belongs to the nuclear reactor technology field, be specifically related to a kind of delay tank.
Background technology
In nuclear reactor, owing to the activation of reactor core causes cooling medium to have short-life radioactivity, for fear of contaminated environment, usual way is that a delay tank is set, make and have radioactive cooling medium and in delay tank, flow through, increase its hold-up time, its radiation decay is changed to after the scope of permission again with its discharge.Common nuclear reactor delay tank places outside the reactor body, and its huge volume is not only wasted resource, has also increased the difficulty and the complicacy of reactor design simultaneously.
Summary of the invention
(1) goal of the invention
The object of the invention is to provide the incorporate delay tank of major loop partial function in a kind of collection this support structure of reactor and the heap pond.
(2) technical scheme
For achieving the above object, the invention provides following technical scheme:
A kind of delay tank comprises upper plate, lower shoe and urceolus, and the lower end in upper plate and the reactor pond steel lining is integrally welded, and urceolus and lower shoe are fixed on the cast concrete base, tube and inner core in also being equipped with in urceolus; Be provided with the dividing plate of radial array between middle tube and the inner core, wherein a dividing plate near the inner core water delivering orifice is a blind plate, and all the other are the runner dividing plate; Be provided with the dividing plate of radial array between middle tube and the urceolus, wherein a dividing plate near middle tube water delivering orifice is a blind plate, and all the other are the runner dividing plate.
Be provided with the reinforcement gusset around the described inner core.
Dividing plate in described between tube and the inner core has 5, and wherein a dividing plate near the inner core water delivering orifice is a blind plate, and all the other 4 is the runner dividing plate.Dividing plate in described between tube and the urceolus has 10, and wherein a dividing plate near middle tube water delivering orifice is a blind plate, and all the other 9 is the runner dividing plate.Have people's hole path on the described runner dividing plate.
(3) beneficial effect
Delay tank provided by the present invention integrates major loop partial function in this support structure of reactor and the heap pond, even the hold-up time of cooling medium in case satisfied the wherein decay requirement of short-lived radioisotope, can be used as the datum clamp face of entire reaction reator body structure member and the pressure boundary ingredient of coolant system again, reduced the volume of reactor and difficulty, the complexity of design.
Description of drawings
Fig. 1 is the advanced research reactor reator body of a disclosed China structure diagram in the specific embodiment, wherein 101 for the reactor pond, 102 for guide tank, 103 for Natural Circulation clack valve, 104 attach most importance to water tank, 105 for reactor core, 106 for delay tank, 108 for inlet pipeline, 110 for outlet conduit, 111 for filter screen;
Fig. 2 is the structural drawing of delay tank, and wherein 1 is that upper plate, 2 is that urceolus, 5 is that lower shoe, 11 is the runner hole for inner core, 3 is middle, 4;
Fig. 3 is the sectional view of A-A direction among Fig. 2, and wherein 6 is that runner dividing plate, 7 is that blind plate, 10 is people's hole path;
Fig. 4 is the vertical view of delay tank, and wherein 111 is that filter screen, 9 is the major loop outlet.
Embodiment
The present invention will be further described below in conjunction with specific embodiment.
Present embodiment provides the delay tank in the Chinese advanced research reactor (CARR).China advanced research reactor structure diagram as shown in Figure 1, the reactor body mainly is made up of parts such as guide tank 102, delay tank 106 and core vessels, and heavy water case 104 is arranged in the core vessel, reactor core 105 is enclosed in the heavy water case 104.Reator body is submerged in 101 li in reactor pond, and coolant system is logical by filter screen 111 and pond water, makes the pond play the effect of voltage stabilizer.Reactor inlet pipeline 108 is connected on the guide tank 102, and outlet conduit 110 is connected on the delay tank 106.During normal the operation, cooling medium enters core vessel cooling reactor core 105 through guide tank 102, enters then and flows into delay tank 106 again, returns guide tank 102 through primary heat transport system.When having an accident, when major loop pressure was lower than certain certain value, emergency pump began to start, thereby the emergent reactor core 105 that injects of Chi Shui is realized emergent cooling.2 Natural Circulation clack valves 103 are installed on guide tank 102, and when its inside and outside differential pressure was reduced to certain certain value, Natural Circulation clack valve 103 is non-actively to be opened, and can set up Natural Circulation.The Natural Circulation process is from filter screen 111 suctions, flows through delay tank 106, reactor core 105, guide tank 102, Natural Circulation clack valve 103, the reactor pond 101 of reinjecting.
In structure shown in Figure 1, delay tank 106 is positioned at the bottom in reactor pond 101, is the pressure boundary ingredient in reactor pond, is again the base support of reator body miscellaneous equipment, and its upper surface is as the datum clamp face of overall stack body construction parts.Its top is connected with lower end assembly welding in heap pond 101 steel linings and forms one, and its outside and bottom and concrete are combined closely, as shown in Figure 2.
Delay tank 106 is resistance pieces of coolant system, need satisfy the thermal-hydraulic requirement.The short-lived radioisotope N that cooling medium produces through reactor core 105 activation
16During by delay tank 106, need make its hold-up time, satisfy the decay requirement greater than 40 seconds.Simultaneously, delay tank 106 will satisfy reactor core 105 Natural Circulation cooling requirement.
Present embodiment provides a kind of delay tank that meets above-mentioned requirements, comprise upper plate 1, lower shoe 5 and urceolus 4, upper plate 1 is integrally welded with the lower end in 101 steel linings of reactor pond, and urceolus 4 and lower shoe 5 are fixed on the cast concrete base, tube 3 and inner core 2 in also being equipped with in urceolus 4; Be provided with the dividing plate of 5 radial arrays between middle tube 3 and the inner core 2, wherein near a blind plate that dividing plate is not perforate of inner core 2 water delivering orifices, all the other 4 for having the runner dividing plate in some runners hole; Be provided with the dividing plate of 10 radial arrays between middle tube 3 and the urceolus 4, wherein a dividing plate near middle tube water delivering orifice is a blind plate, and all the other 9 is the runner dividing plate.With middle tube 3 is the boundary, and circuit in forming between inner core 2 and the middle tube 3 after the cooling medium that is flowed out by inner core 2 passes 4 runner dividing plates, is folded at blind plate 7 places of interior circuit, enters the bypass road of being made up of middle tube 3 and urceolus 4 via the water delivering orifice on the middle tube 3; Blind plate 7 places at bypass road after bypass road passes 9 runner dividing plates are folded to, and upwards enter major loop outlet 9 through rising pipe outflow delay tank 106.During normal the operation, cooling medium was detained in delay tank about 40 seconds, satisfied the fall time requirement.
Delay tank inner core 2 is for growing barrel shape, and the same fixedly blank flange of control rod guide tube of its lower end welding flange joins.For increasing the rigidity of inner core, around it, be provided with the reinforcement gusset.
Be provided with the manhole path 10 respectively on 9 runner dividing plates during 4 runner dividing plates between inner core 2 and middle tube 3 reach between tube 3 and the urceolus 4, its purpose is:
1) when assembling and welding runner dividing plate, workman and instrument can be by the turnover of manhole path 10;
2) to inner room and mistress clear up, polishing, Non-Destructive Testing and final acid wash passivation all need pass in and out through the manhole path 10 with clean the processing;
3) after the assembling of delay tank building site, also need pass through the manhole path 10 to the inspection of internals, on the runner dividing plate, cover plate for manhole also with on the dividing plate is drilled with aligned identical and big or small perforate to cover plate for manhole, does not influence the circulation and the flow of medium with bolt.
On bypass road, there are 3 adapters to pass, in upper plate, the welding of lower shoe place, take over the corresponding welding of an end that is positioned at the pond, the pre-buried pipeline welding of the other end and reator body with system pipeline.
Be provided with two natural circulation bath water inlet screen packs 111 in the inboard of coolant outlet pipe.
Above content be in conjunction with preferred embodiment to specifying that the present invention did, can not assert that the specific embodiment of the present invention only limits to these explanations.Concerning the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deductions and conversion, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. delay tank, comprise upper plate (1), lower shoe (5) and urceolus (4), upper plate (1) is integrally welded with the lower end in the steel lining of reactor pond, urceolus (4) and lower shoe (5) are fixed on the cast concrete base, it is characterized in that: also be equipped with middle tube (3) and inner core (2) in urceolus (4); Be provided with the dividing plate of radial array between middle tube (3) and the inner core (2), wherein a dividing plate near inner core (2) water delivering orifice is a blind plate, and all the other are the runner dividing plate; Be provided with the dividing plate of radial array between middle tube (3) and the urceolus (2), wherein a dividing plate near middle tube (3) water delivering orifice is a blind plate, and all the other are the runner dividing plate.
2. delay tank according to claim 1 is characterized in that: the dividing plate in described between tube (3) and the inner core (2) has 5, and wherein a dividing plate near inner core (2) water delivering orifice is a blind plate, and all the other 4 is the runner dividing plate.
3. delay tank according to claim 1 is characterized in that: the dividing plate in described between tube (3) and the urceolus (4) has 10, and wherein a dividing plate near middle tube (3) water delivering orifice is a blind plate, and all the other 9 is the runner dividing plate.
4. according to the described delay tank of claim 1 to 3, it is characterized in that: described inner core (2) is provided with the reinforcement gusset all around.
5. delay tank according to claim 4 is characterized in that: have people's hole path (10) on the described runner dividing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102819245A CN102013277A (en) | 2010-09-14 | 2010-09-14 | Decay tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102819245A CN102013277A (en) | 2010-09-14 | 2010-09-14 | Decay tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102013277A true CN102013277A (en) | 2011-04-13 |
Family
ID=43843410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102819245A Pending CN102013277A (en) | 2010-09-14 | 2010-09-14 | Decay tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102013277A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461506A (en) * | 2018-11-12 | 2019-03-12 | 中国原子能科学研究院 | A kind of swimming pool formula region low temperature heating reactor |
| CN109473194A (en) * | 2018-11-12 | 2019-03-15 | 中国原子能科学研究院 | A kind of decaying cylinder for Deep Pool Low Temperature Heating Reactor |
| CN109545416A (en) * | 2018-12-29 | 2019-03-29 | 中国原子能科学研究院 | A kind of decaying cylinder for Deep Pool Low Temperature Heating Reactor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202025538U (en) * | 2010-09-14 | 2011-11-02 | 中国原子能科学研究院 | Decay tank |
-
2010
- 2010-09-14 CN CN2010102819245A patent/CN102013277A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202025538U (en) * | 2010-09-14 | 2011-11-02 | 中国原子能科学研究院 | Decay tank |
Non-Patent Citations (7)
| Title |
|---|
| 《建设监理》 20081231 赵宝贵 CARR（中国先进研究堆）衰变箱安装测量监理实践 , 第3期 * |
| 《核动力工程》 10061031 石辰蕾等 CARR重水箱与导流箱设计特点 第27卷, 第5期 * |
| 《核动力工程》 20061031 张占利 CARR衰变箱及堆水池钢衬里设计难点 第27卷, 第5期 * |
| 张占利等: "CARR衰变箱及堆水池钢衬里设计难点 ", 《核动力工程》 * |
| 张占利等: "CARR衰变箱及堆水池钢衬里设计难点", 《核动力工程》, 31 October 2006 (2006-10-31) * |
| 邓智勇: "中国先进研究堆堆本体主设备研制 ", 《压力容器》 * |
| 邓智勇: "中国先进研究堆堆本体主设备研制", 《压力容器》, no. 03, 30 March 2005 (2005-03-30) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461506A (en) * | 2018-11-12 | 2019-03-12 | 中国原子能科学研究院 | A kind of swimming pool formula region low temperature heating reactor |
| CN109473194A (en) * | 2018-11-12 | 2019-03-15 | 中国原子能科学研究院 | A kind of decaying cylinder for Deep Pool Low Temperature Heating Reactor |
| CN109461506B (en) * | 2018-11-12 | 2023-08-18 | 中国原子能科学研究院 | Swimming pool type regional low-temperature heat supply stack |
| CN109473194B (en) * | 2018-11-12 | 2024-05-14 | 中国原子能科学研究院 | Attenuation tube for deep water tank type low-temperature heat supply stack |
| CN109545416A (en) * | 2018-12-29 | 2019-03-29 | 中国原子能科学研究院 | A kind of decaying cylinder for Deep Pool Low Temperature Heating Reactor |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110413 |