CN103021487A - Cooling and purifying system of spent fuel pool - Google Patents
Cooling and purifying system of spent fuel pool Download PDFInfo
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- CN103021487A CN103021487A CN2012104911122A CN201210491112A CN103021487A CN 103021487 A CN103021487 A CN 103021487A CN 2012104911122 A CN2012104911122 A CN 2012104911122A CN 201210491112 A CN201210491112 A CN 201210491112A CN 103021487 A CN103021487 A CN 103021487A
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- spent fuel
- fuel pool
- cooling
- clean
- water body
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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 invention relates to a cooling and purifying system of a spent fuel pool. The cooling and purifying system is arranged in the spent fuel pool, and comprises a cooling structure (5) formed at the upper part of the spent fuel pool; and the cooling structure (5) is parallel to a vertical direction of a pool wall. According to the system provided by the invention, all main processes for storing spent fuel and maintenance operation can be completed in the spent fuel pool without moving and circulating a water body inside the spent fuel pool, so that risks of diffusion of radioactive matter and losing of cooling of the stored fuel are reduced, and the security and the economical benefits of fuel storage are greatly improved. Furthermore, the system can realize a foam bypass function of the surface of the spent fuel pool simultaneously.
Description
Technical field
The invention belongs to the irradiated fuel store technical field, be specifically related to a kind of Spent Fuel Pool Cooling and Clean up System.
Background technology
Irradiated fuel store is the important stage of nuclear fuel cycle, and the nuclear fuel that nuclear power plant constantly more renews in whole phase in longevity domestic demand also draws off used spentnuclear fuel.Spentnuclear fuel have continue to emit decay heat, radioactivity and under specific circumstances may recovery of critical etc. characteristics, therefore, for any type of nuclear power plant, the storage of spentnuclear fuel safety all is the problem that can't avoid.The main processes of irradiated fuel store comprises: the cooling of water, filtration and desalination.In the design of commercial nuclear power system in the past, these processes are all finished in the outside of Spent Fuel Pool usually, namely by pump the water in the Spent Fuel Pool are extracted out, flow back to Spent Fuel Pool behind supercooling, filtration and desalination again.The benefit of this working method is: principle is simple directly, function realizes that function surplus lower to the requirement of equipment and system is larger; Shortcoming is: system pipeline is complicated, equipment is more, and in be placed in not chummery even the power plant's zones of different, cooling medium is possible loss in the migration cyclic process, jeopardize the safety of storing fuel, in addition, radioimpurity radioactive impurity also may because the replacing of migration circulation, filter core and the resin of cooling medium to environment.
Summary of the invention
For the defective that exists in the prior art, the purpose of this invention is to provide a kind of main processes of being convenient to realize irradiated fuel store, be convenient to keep in repair and maintenance and security, Spent Fuel Pool Cooling and Clean up System that economy is higher.
For reaching above purpose, the technical solution used in the present invention is: a kind of Spent Fuel Pool Cooling and Clean up System, this system is located in the Spent Fuel Pool, and this system comprises the cooling structure that is located at Spent Fuel Pool top, and described cooling structure parallels with the vertical direction of pool wall.
Further, the pool wall of Spent Fuel Pool is covered with metal covering, the cube shaped water body container of the whole formation of pool wall metal covering, and cooling structure is distributed in around the top of water body container; The below of cooling structure is provided with the cube shaped guiding device of open topped, bottom opening, and the fuel screen work of storage of spent fuel is located in the guiding device.
Further again, form the water body circulation passage between guiding device and the pool wall metal covering; The runner that the water body circulation passage is positioned at the water body container bottom is tending towards level.
Further, this system also comprises the Submersed filter that is located in the water body circulation passage, and the two ends of Submersed filter are respectively equipped with the port that enters or discharge for fluid.
Again further, be provided with water-proof electric pump I and filtering module in the Submersed filter.Preferably, also be provided with in the Submersed filter for the isolation module I of isolating filtering module.
Further, this system also comprises the diving desalination device that is located in the water body circulation passage, and the two ends of diving desalination device are respectively equipped with the port that enters or discharge for fluid.
Further again, the port that enters for fluid on the diving desalination device is provided with desalination device inlet filter, and the port that is used for fluid expulsion is provided with desalination device outlet resin catcher.
Further, also be provided with for the isolation module II of isolating diving desalination device on the diving desalination device.
Further again, be provided with water-proof electric pump II in the diving desalination device.
Beneficial effect of the present invention is:
The first, according to Spent Fuel Pool Cooling and Clean up System provided by the present invention, all main processes of irradiated fuel store and maintenance and repair operation all can be finished in Spent Fuel Pool, need not the water body in the Spent Fuel Pool is moved and circulates, thereby reduce the radiomaterial diffusion and store the risk that fuel loses cooling.
The second, adopt system provided by the invention, can be according to the actual conditions of power plant, be chosen in Spent Fuel Pool inside take compulsory circulative cooling or natural circulation cooling, selection continue filtration or intermittent filtration, selection continue desalination or intermittently desalination and selecting filter the operation that cooperates with desalination process, thereby security and the economy of raising irradiated fuel store.
Three, adopt system provided by the invention, no longer need to arrange separately the surperficial skimming function in weary pond (Spent Fuel Pool), when system's utilization diving desalination device or Submersed filter strengthened the Spent Fuel Pool Natural Circulation, weary pool surface skimming function can realize simultaneously.
Description of drawings
Fig. 1 is the front view of a kind of Spent Fuel Pool Cooling and Clean up System provided by the present invention;
Fig. 2 be Fig. 1 along A-A to sectional view;
Fig. 3 is the vertical view of Spent Fuel Pool Cooling and Clean up System provided by the present invention;
Fig. 4 is that Fig. 3 is along the cut-open view of diagonal.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Shown in Fig. 1-4, a kind of Spent Fuel Pool Cooling and Clean up System provided by the present invention is located in the Spent Fuel Pool, all major equipments are positioned at operation planar below 1, and this system comprises the cooling structure 5 that is located at Spent Fuel Pool top, and described cooling structure 5 parallels with the vertical direction of pool wall.
As shown in Figure 2, the inwall of Spent Fuel Pool is covered with metal covering, the cube shaped water body container of pool wall metal covering 2 whole formation, and cooling structure 5 is distributed in around the top of water body container, by supporting construction 12,13,14 supports.
Preferably, the below of cooling structure 5 is provided with the cube shaped guiding device 3 of open topped, bottom opening, and the fuel screen work 4 of storage of spent fuel is located in the guiding device 3.Guiding device 3 is supported by the supporting construction 19 that is located at the water body container bottom, thereby the bottom of guiding device 3 is not contacted with the bottom of water body container.
The above water body of dotted line shown in Figure 2 (being the upper edge of guiding device 3) is system heating water body 9; The following water body of dotted line shown in Figure 2 is system cools water body 10.Below dotted line shown in Figure 2, form water body circulation passage 11 between guiding device 3 and the pool wall metal covering 2.In addition, the structure that the equal Formation cross-section of part of the close bottom surface of the part of close bottom surface, water body container bottom and guiding device 3 bottoms reduces, thus so that being positioned at the runner of water body container bottom, water body circulation passage 11 is tending towards level.System cools water body 10 and system heating water body 9 are realized circulation by the hole of water body circulation passage 11 and guiding device 3 bottoms.
In preferred embodiments, system provided by the invention also comprises the Submersed filter 7 that is located in the water body circulation passage 11, and Submersed filter 7 is by supporting construction 17,18 supports.The two ends of Submersed filter 7 are respectively equipped with the port that enters or discharge for fluid.System can finish in Spent Fuel Pool inside by Submersed filter 7 filtration of water body in the Spent Fuel Pool, that is: water is inhaled into from a port of Submersed filter 7, after the filtration namely another port by Submersed filter 7 flow back to Spent Fuel Pool.Two ports of Submersed filter 7 are interchangeable, thereby can realize two work on the flow direction.
Be provided with water-proof electric pump I and filtering module in the Submersed filter 7, the replacing of the filter core of filtering module, compression and temporary transient storage all can be finished in Spent Fuel Pool.Preferably, also be provided with the isolation module I for the isolation filtering module in the Submersed filter 7, utilize the isolation module I with after the filtering module isolation, Submersed filter 7 can be merely as the ebullator use of Spent Fuel Pool inside.
In a more preferred embodiment, system provided by the invention also comprises the diving desalination device 8 that is located in the water body circulation passage 11, and diving desalination device 8 is by supporting construction 17,18 supports.The two ends of diving desalination device 8 are respectively equipped with the port that enters or discharge for fluid.System can finish in Spent Fuel Pool inside by diving desalination device 8 desalination of water body in the Spent Fuel Pool, that is: water is inhaled into from a port of diving desalination device 8, behind the desalination namely another port by diving desalination device 8 flow back to Spent Fuel Pool.
The port that enters for fluid on the diving desalination device 8 is provided with desalination device inlet filter, and the port that is used for fluid expulsion is provided with desalination device outlet resin catcher.Be provided with an independently mixed bed desalination device in the diving desalination device 8, desalination device inlet filter and desalination device outlet resin catcher are connected with it, and the replacing, compression and the temporary transient storage that are located at the resin in the mixed bed desalination device all can be finished in Spent Fuel Pool.Preferably, also be provided with the isolation module II for isolation diving desalination device 8 on the diving desalination device 8, utilize the isolation module II will dive under water after 8 isolation of desalination device, diving desalination device 8 can be merely as the ebullator use of Spent Fuel Pool inside.Also be provided with water-proof electric pump II in the diving desalination device 8.
As can be seen from Figure 3, some Submersed filters 7, diving desalination device 8 can be provided at the different level place of Spent Fuel Pool in the system that provides among the present invention, can be according to power plant's actual conditions choice for use, also can prevent that a certain Submersed filter or diving desalination device from breaking down and cause the system can't true(-)running simultaneously.
Above-described embodiment just illustrates of the present invention, and the present invention also can implement with other ad hoc fashion or other particular form, and does not depart from main idea of the present invention or essential characteristic.Therefore, the embodiment of description all should be considered as illustrative from any aspect but not be determinate.Scope of the present invention should be by additional claim explanation, and the intention of any and claim and the variation of scope equivalence also should be within the scope of the present invention.
Claims (10)
1. a Spent Fuel Pool Cooling and Clean up System is characterized in that, this system is located in the Spent Fuel Pool, and this system comprises the cooling structure (5) that is located at Spent Fuel Pool top, and described cooling structure (5) parallels with the vertical direction of pool wall.
2. a kind of Spent Fuel Pool Cooling and Clean up System according to claim 1, it is characterized in that, the pool wall of Spent Fuel Pool is covered with metal covering, the cube shaped water body container of the whole formation of pool wall metal covering (2), and cooling structure (5) is distributed in around the top of water body container; The below of cooling structure (5) is provided with the cube shaped guiding device (3) of open topped, bottom opening, and the fuel screen work (4) of storage of spent fuel is located in the guiding device (3).
3. a kind of Spent Fuel Pool Cooling and Clean up System according to claim 2 is characterized in that, forms water body circulation passage (11) between guiding device (3) and the pool wall metal covering (2); The passage that water body circulation passage (11) is positioned at the water body container bottom is the horizontal channel.
4. a kind of Spent Fuel Pool Cooling and Clean up System according to claim 3, it is characterized in that, this system also comprises the Submersed filter (7) that is located in the water body circulation passage (11), and the two ends of Submersed filter (7) are respectively equipped with the port that enters or discharge for fluid.
5. a kind of Spent Fuel Pool Cooling and Clean up System according to claim 4 is characterized in that, Submersed filter is provided with water-proof electric pump I and filtering module in (7).
6. a kind of Spent Fuel Pool Cooling and Clean up System according to claim 5 is characterized in that, also is provided with the isolation module I for the isolation filtering module in the Submersed filter (7).
7. a kind of Spent Fuel Pool Cooling and Clean up System according to claim 4, it is characterized in that, this system also comprises the diving desalination device (8) that is located in the water body circulation passage (11), and the two ends of diving desalination device (8) are respectively equipped with the port that enters or discharge for fluid.
8. a kind of Spent Fuel Pool Cooling and Clean up System according to claim 7, it is characterized in that, the upper port that enters for fluid of diving desalination device (8) is provided with desalination device inlet filter, and the port that is used for fluid expulsion is provided with desalination device outlet resin catcher.
9. a kind of Spent Fuel Pool Cooling and Clean up System according to claim 8 is characterized in that, also is provided with the isolation module II for isolation diving desalination device (8) on the diving desalination device (8).
10. described a kind of Spent Fuel Pool Cooling and Clean up System is characterized in that according to claim 7-9, is provided with water-proof electric pump II in the diving desalination device (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491112.2A CN103021487B (en) | 2012-11-27 | 2012-11-27 | A kind of Spent Fuel Pool Cooling and Clean up System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491112.2A CN103021487B (en) | 2012-11-27 | 2012-11-27 | A kind of Spent Fuel Pool Cooling and Clean up System |
Publications (2)
| Publication Number | Publication Date |
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| CN103021487A true CN103021487A (en) | 2013-04-03 |
| CN103021487B CN103021487B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210491112.2A Active CN103021487B (en) | 2012-11-27 | 2012-11-27 | A kind of Spent Fuel Pool Cooling and Clean up System |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183282A (en) * | 2013-05-22 | 2014-12-03 | 中国核电工程有限公司 | Spent fuel pool based on design of external interference |
| CN110689983A (en) * | 2019-10-11 | 2020-01-14 | 中国核电工程有限公司 | Spent fuel pool system and heat exchange method |
| CN112361948A (en) * | 2020-10-29 | 2021-02-12 | 中国核动力研究设计院 | Heating device for simulating different temperature control of fuel rod-spent pool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271051A (en) * | 1992-06-24 | 1993-12-14 | Westinghouse Electric Corp. | Combined cooling and purification system for nuclear reactor spent fuel pit, refueling cavity, and refueling water storage tank |
| CN201383354Y (en) * | 2009-01-22 | 2010-01-13 | 中广核工程有限公司 | Improved nuclear power station spent fuel reservoir cooling and purifying system |
| CN101884073A (en) * | 2007-11-15 | 2010-11-10 | 由俄勒冈州高等教育管理委员会代表的俄勒冈州立大学 | The submerged containment vessel that is used for nuclear reactor |
| US20120250813A1 (en) * | 2011-03-30 | 2012-10-04 | Westinghouse Electric Company Llc | Self-contained emergency spent nuclear fuel pool cooling system |
-
2012
- 2012-11-27 CN CN201210491112.2A patent/CN103021487B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271051A (en) * | 1992-06-24 | 1993-12-14 | Westinghouse Electric Corp. | Combined cooling and purification system for nuclear reactor spent fuel pit, refueling cavity, and refueling water storage tank |
| CN101884073A (en) * | 2007-11-15 | 2010-11-10 | 由俄勒冈州高等教育管理委员会代表的俄勒冈州立大学 | The submerged containment vessel that is used for nuclear reactor |
| CN201383354Y (en) * | 2009-01-22 | 2010-01-13 | 中广核工程有限公司 | Improved nuclear power station spent fuel reservoir cooling and purifying system |
| US20120250813A1 (en) * | 2011-03-30 | 2012-10-04 | Westinghouse Electric Company Llc | Self-contained emergency spent nuclear fuel pool cooling system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183282A (en) * | 2013-05-22 | 2014-12-03 | 中国核电工程有限公司 | Spent fuel pool based on design of external interference |
| CN104183282B (en) * | 2013-05-22 | 2017-02-08 | 中国核电工程有限公司 | Spent fuel pool based on design of external interference |
| CN110689983A (en) * | 2019-10-11 | 2020-01-14 | 中国核电工程有限公司 | Spent fuel pool system and heat exchange method |
| CN112361948A (en) * | 2020-10-29 | 2021-02-12 | 中国核动力研究设计院 | Heating device for simulating different temperature control of fuel rod-spent pool |
| CN112361948B (en) * | 2020-10-29 | 2022-02-22 | 中国核动力研究设计院 | Heating device for simulating different temperature control of fuel rod-spent pool |
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| Publication number | Publication date |
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| CN103021487B (en) | 2016-02-03 |
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