CN104616707A - Boron injection system for second reactor shutdown system of research reactor - Google Patents
Boron injection system for second reactor shutdown system of research reactor Download PDFInfo
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- CN104616707A CN104616707A CN201410840668.7A CN201410840668A CN104616707A CN 104616707 A CN104616707 A CN 104616707A CN 201410840668 A CN201410840668 A CN 201410840668A CN 104616707 A CN104616707 A CN 104616707A
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- boron
- pipeline
- valve
- reactor
- pipe
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/22—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of a fluid or fluent neutron-absorbing material, e.g. by adding neutron-absorbing material to the coolant
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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
Abstract
The invention provides a boron injection system for a second reactor shutdown system of a research reactor. The system comprises a boron liquid tank, an inlet valve, a boron injection pipe, an outlet valve and a boron liquid recovery tank, wherein a liquid outlet of the boron liquid tank is connected with a liquid inlet of the boron injection pipe through a first pipeline; a liquid outlet of the boron injection pipe is connected with a liquid inlet of the boron liquid recovery tank through a second pipeline; the inlet valve is arranged on the first pipeline; the outlet valve is arranged on the second pipeline; the boron injection pipe is arranged around a fuel assembly in the reactor. Compared with the prior art, the boron injection system for the second reactor shutdown system of the research reactor, provided by the invention, is simple in structure, quick in motion, easy to manufacture and mount, and convenient to overhaul; furthermore, the boron solution and a reactor coolant are mutually isolated, so that after the reactor shutdown function is executed, the reactor coolant is not required to be processed, and the normal operation of the reactor can be quickly restored.
Description
Technical field
The present invention relates to nuclear reactor field, particularly relate to a kind of boron injection system for research reactor Second shutdown system.
Background technology
Can realize shutdown under any operating mode, be the most important function ensureing reactor safety, for this reason, usually need to arrange two cover reactor shut-off systems, this two cover system, except mutual independence, also require there is maximum difference in mode or principle, to reduce the probability of common cause failure.The most frequently used method of research reactor first reactor shut-off system falls or upper plug in control rod, and Second shutdown system, except a few studies heap can by discharge as except the heavy water of neutron reflector, most of research reactor is still using the movement of control rod as the second shutdown means, like this, two cover reactor shut-off systems are the same in mode or principle, meet not ideal with the requirement of diversity principle.
In view of above-mentioned defect, creator of the present invention, through research and test for a long time, finally obtains the present invention.
Summary of the invention
The object of the present invention is to provide that a kind of structure is simple, action is quick, making and installation is easy, maintenance easily for the boron injection system of research reactor Second shutdown system, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is: provide a kind of boron injection system for research reactor Second shutdown system, this system comprises boron flow container, imported valve, note boron pipe, outlet valve and boron liquid recycling can, the liquid outlet of described boron flow container is connected with the inlet of described note boron pipe by the first pipeline, the liquid outlet of described note boron pipe is connected by the inlet of second pipe with described boron liquid recycling can, described imported valve is arranged on described first pipeline, described outlet valve is arranged on described second pipe, described note boron pipe is arranged on around reactor fuel assembly.
Further, described boron injection system also comprises compressed air source unit, and described compressed air source unit is used for providing pressure differential to described boron injection system.
Further, the gas outlet of described compressed air source unit is connected with described boron flow container by the 3rd pipeline, described 3rd pipeline arranges the first valve, described 3rd pipeline and described first pipeline are by the 4th pipeline communication, described 4th pipeline arranges the second valve, the link of described 4th pipeline and described 3rd pipeline is positioned at the inlet end of described first valve, and the link of described 4th pipeline and described first pipeline is positioned at the outlet end of described imported valve.
Further, described boron injection system also comprises vacuum extractor, and described vacuum extractor is used for providing pressure differential to described boron injection system.
Further, described vacuum plant is connected with described second pipe by the 5th pipeline, be connected with described boron liquid recycling can by the 6th pipeline, described 5th pipeline arranges the 3rd valve, described 6th pipeline arranges the 4th valve, and the link of described 5th pipeline and described second pipe is positioned at the liquid feeding end of described outlet valve.
Further, described compressed air source unit can be nitrogen cylinder, helium tank or gas tank.
Compared with the prior art, beneficial effect of the present invention is: the boron injection system for research reactor Second shutdown system provided by the invention, structure is simple, action is quick, making and installation is easy, maintenance is convenient, and B solution and reactor coolant are isolated mutually, do not need after executing shutdown function to carry out any process to reactor coolant, the normal operation of recovery reactor that can be very fast.
Accompanying drawing explanation
Fig. 1 is the structural representation of the boron injection system for research reactor Second shutdown system of the embodiment of the present invention one;
Fig. 2 is the structural representation of the boron injection system for research reactor Second shutdown system of the embodiment of the present invention two;
Fig. 3 is the structural representation of the boron injection system for research reactor Second shutdown system of the embodiment of the present invention three;
Fig. 4 is the structural representation of the boron injection system for research reactor Second shutdown system of the embodiment of the present invention four.
Embodiment
For ease of understanding technology contents of the present invention further, below in conjunction with accompanying drawing, the invention will be further described.
Embodiment one
As shown in Figure 1, be the structural representation of the boron injection system for research reactor Second shutdown system of the embodiment of the present invention one, this boron injection system comprises boron flow container 1, imported valve 2, note boron pipe 3, outlet valve 4 and boron liquid recycling can 5.The liquid outlet of described boron flow container 1 is connected with the inlet of described note boron pipe 3 by the first pipeline 101, the liquid outlet of described note boron pipe 3 is connected with the inlet of described boron liquid recycling can 5 by second pipe 102, described imported valve 2 is arranged on described first pipeline 101, described outlet valve 4 is arranged on described second pipe 102, in the present embodiment, described note boron pipe 3 has two at least, is arranged in parallel around reactor 6 fuel assembly 7.In described boron flow container 1, splendid attire meets the BAS of concentration requirement.When situations such as occurring accident wants shutdown, open described imported valve 2, close described outlet valve 4, BAS in described boron flow container 1 flows in described note boron pipe 3 by described first pipeline 101 by the pressure differential relying on potential difference to provide, BAS in note boron pipe 3 absorbs neutron, thus reaches the object of shutdown.After accident is removed, close described imported valve 2, open described outlet valve 4, still rely on pressure differential to flow in described boron liquid recycling can 5, for reactor startup is prepared by the BAS in described note boron pipe 3 by described second pipe 102.
Embodiment two
As shown in Figure 2, for the structural representation of the boron injection system for research reactor Second shutdown system of the embodiment of the present invention two, the present embodiment and embodiment one difference are, the boron injection system of the present embodiment also comprises compressed air source unit 10, provide pressure differential for giving described boron injection system.The gas outlet of this compressed air source unit 10 is connected with described boron flow container 1 by the 3rd pipeline 103, described 3rd pipeline 103 arranges the first valve 8, described 3rd pipeline 103 is communicated with by the 4th pipeline 104 with described first pipeline 101, described 4th pipeline 104 arranges the second valve 9, the link of described 4th pipeline 104 and described 3rd pipeline 103 is positioned at the inlet end of described first valve 8, and the link of described 4th pipeline 104 and described first pipeline 101 is positioned at the outlet end of described imported valve 2.Compressed air source unit 10 can be nitrogen cylinder, helium tank, gas tank etc.
When situations such as occurring accident wants shutdown, open described imported valve 2, if now have insufficient pressure in boron flow container 1 by oneself to flow in described note boron pipe 3 by the BAS in described boron flow container 1 by described first pipeline 101, open described first valve 8, close described second valve 9, the gas of described compressed air source unit 10 enters in described boron flow container 1 by described 3rd pipeline 103, increasing pressure differential injects in described note boron pipe 3 by the BAS in described boron flow container 1 by described first pipeline 101, BAS in note boron pipe 3 absorbs neutron, thus reach the object of shutdown.After accident is removed, close described first valve 8 and described imported valve 2, open described second valve 9 and outlet valve 4, BAS in described note boron pipe 3 is pressed in described boron liquid recycling can 5, for reactor startup is prepared by described second pipe 102 by the pressure provided by the gas of described compressed air source unit 10.
Embodiment three
As shown in Figure 3, for the structural representation of the boron injection system for research reactor Second shutdown system of the embodiment of the present invention three, the present embodiment and embodiment one difference are, the boron injection system of the present embodiment also comprises vacuum extractor 13, provide pressure differential for giving described boron injection system.This vacuum plant 13 is connected with described second pipe 102 by the 5th pipeline 105, be connected with described boron liquid recycling can 5 by the 6th pipeline 106, described 5th pipeline 105 arranges the 3rd valve 11, described 6th pipeline 106 arranges the 4th valve 12, and the link of described 5th pipeline 105 and described second pipe 102 is positioned at the liquid feeding end of described outlet valve 4.
When situations such as occurring accident wants shutdown, open described imported valve 2, if now have insufficient pressure in boron flow container 1 by oneself to flow in described note boron pipe 3 by the BAS in described boron flow container 1 by described first pipeline 101, open described 3rd valve 11, close described 4th valve 12 and outlet valve 4, start described vacuum extractor 13, by vacuumizing generation negative pressure, increasing pressure differential injects in described note boron pipe 3 by the BAS in described boron flow container 1 by described first pipeline 101, BAS in note boron pipe 3 absorbs neutron, thus reach the object of shutdown.After accident is removed, closing described 3rd valve 11 and described imported valve 2, opening described 4th valve 12 and outlet valve 4, by vacuumizing generation negative pressure, BAS in described note boron pipe 3 is pressed in described boron liquid recycling can 5, for reactor startup is prepared by described second pipe 102.
Embodiment four
As shown in Figure 4, for the structural representation of the boron injection system for research reactor Second shutdown system of the embodiment of the present invention four, this boron injection system comprises boron flow container 1, imported valve 2, note boron pipe 3, outlet valve 4, boron liquid recycling can 5, compressed air source unit 10 and vacuum extractor 13.The liquid outlet of described boron flow container 1 is connected with the inlet of described note boron pipe 3 by the first pipeline 101, the liquid outlet of described note boron pipe 3 is connected with the inlet of described boron liquid recycling can 5 by second pipe 102, described imported valve 2 is arranged on described first pipeline 101, described outlet valve 4 is arranged on described second pipe 102, described note boron pipe 3 has two at least, is arranged in parallel around reactor 6 fuel assembly 7.In described boron flow container 1, splendid attire meets the BAS of concentration requirement.The gas outlet of described compressed air source unit 10 is connected with described boron flow container 1 by the 3rd pipeline 103, described 3rd pipeline 103 arranges the first valve 8, described 3rd pipeline 103 is communicated with by the 4th pipeline 104 with described first pipeline 101, described 4th pipeline 104 arranges the second valve 9, the link of described 4th pipeline 104 and described 3rd pipeline 103 is positioned at the inlet end of described first valve 8, and the link of described 4th pipeline 104 and described first pipeline 101 is positioned at the outlet end of described imported valve 2.Compressed air source unit 10 can be nitrogen cylinder, helium tank, gas tank etc.Described vacuum plant 13 is connected with described second pipe 102 by the 5th pipeline 105, be connected with described boron liquid recycling can 5 by the 6th pipeline 106, described 5th pipeline 105 arranges the 3rd valve 11, described 6th pipeline 106 arranges the 4th valve 12, and the link of described 5th pipeline 105 and described second pipe 102 is positioned at the liquid feeding end of described outlet valve 4.
When situations such as occurring accident wants shutdown, the pressure differential using compressed air source unit 10 or vacuum extractor 13 to provide all is not enough to the BAS in described boron flow container 1 to flow in described note boron pipe 3 by described first pipeline 101, when needing can reach required pressure differential by the combination of the two, the system of the present embodiment just can be utilized to realize shutdown.Open described first valve 8, imported valve 2 and the 3rd valve 11, close described second valve 9, the 4th valve 12 and outlet valve 4, by the effect of compressed air source unit 10 and vacuum extractor 13, increasing pressure differential injects in described note boron pipe 3 by the BAS in described boron flow container 1 by described first pipeline 101, BAS in note boron pipe 3 absorbs neutron, thus reaches the object of shutdown.After accident is removed, close described first valve 8, imported valve 2 and the 3rd valve 11, open described second valve 9, the 4th valve 12 and outlet valve 4, the same effect passing through compressed air source unit 10 and vacuum extractor 13, BAS in described note boron pipe 3 is pressed in described boron liquid recycling can 5, for reactor startup is prepared by described second pipe 102.
Utilize the boron injection system for research reactor Second shutdown system provided by the invention, structure is simple, action is quick, making and installation is easy, maintenance is convenient, and B solution and reactor coolant are isolated mutually, do not need after executing shutdown function to carry out any process to reactor coolant, the normal operation of recovery reactor that can be very fast.
The foregoing is only preferred embodiment of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that the claims in the present invention limit to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (6)
1. the boron injection system for research reactor Second shutdown system, it is characterized in that, this system comprises boron flow container, imported valve, note boron pipe, outlet valve and boron liquid recycling can, the liquid outlet of described boron flow container is connected with the inlet of described note boron pipe by the first pipeline, the liquid outlet of described note boron pipe is connected by the inlet of second pipe with described boron liquid recycling can, described imported valve is arranged on described first pipeline, described outlet valve is arranged on described second pipe, and described note boron pipe is arranged on around reactor fuel assembly.
2. a kind of boron injection system for research reactor Second shutdown system as claimed in claim 1, it is characterized in that, described boron injection system also comprises compressed air source unit, and described compressed air source unit is used for providing pressure differential to described boron injection system.
3. a kind of boron injection system for research reactor Second shutdown system as claimed in claim 2, it is characterized in that, the gas outlet of described compressed air source unit is connected with described boron flow container by the 3rd pipeline, described 3rd pipeline arranges the first valve, described 3rd pipeline and described first pipeline are by the 4th pipeline communication, described 4th pipeline arranges the second valve, the link of described 4th pipeline and described 3rd pipeline is positioned at the inlet end of described first valve, and the link of described 4th pipeline and described first pipeline is positioned at the outlet end of described imported valve.
4. a kind of boron injection system for research reactor Second shutdown system as described in claim 1 or 3, it is characterized in that, described boron injection system also comprises vacuum extractor, and described vacuum extractor is used for providing pressure differential to described boron injection system.
5. a kind of boron injection system for research reactor Second shutdown system as claimed in claim 4, it is characterized in that, described vacuum plant is connected with described second pipe by the 5th pipeline, be connected with described boron liquid recycling can by the 6th pipeline, described 5th pipeline arranges the 3rd valve, described 6th pipeline arranges the 4th valve, and the link of described 5th pipeline and described second pipe is positioned at the liquid feeding end of described outlet valve.
6. a kind of boron injection system for research reactor Second shutdown system as claimed in claim 5, it is characterized in that, described compressed air source unit can be nitrogen cylinder, helium tank or gas tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410840668.7A CN104616707B (en) | 2014-12-30 | 2014-12-30 | Boron injection system for second reactor shutdown system of research reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410840668.7A CN104616707B (en) | 2014-12-30 | 2014-12-30 | Boron injection system for second reactor shutdown system of research reactor |
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| Publication Number | Publication Date |
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| CN104616707A true CN104616707A (en) | 2015-05-13 |
| CN104616707B CN104616707B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410840668.7A Active CN104616707B (en) | 2014-12-30 | 2014-12-30 | Boron injection system for second reactor shutdown system of research reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118533A (en) * | 2015-09-09 | 2015-12-02 | 中国科学院近代物理研究所 | Reactivity control system, nuclear reactor and control method of nuclear reactor |
| CN109427422A (en) * | 2017-08-29 | 2019-03-05 | 华北电力大学 | A kind of dense boric acid injected system of emergency is as second set of reactor shut-off system of presurized water reactor |
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| US3406092A (en) * | 1963-12-20 | 1968-10-15 | Atomenergi Ab | Device for controlling the reactivity of a nuclear reactor |
| JPH01272994A (en) * | 1988-04-25 | 1989-10-31 | Hitachi Ltd | Reactor shutdown device |
| CN1588559A (en) * | 2004-07-07 | 2005-03-02 | 中国核动力研究设计院 | Shut-down method and shut-down system for low temperature heat supply or research pile super design reference fault |
| CN103871506A (en) * | 2012-12-11 | 2014-06-18 | 中国核动力研究设计院 | High-pressure safe injection system for nuclear power station |
| KR20140109164A (en) * | 2013-03-05 | 2014-09-15 | 한국원자력연구원 | In vessel boron injection system |
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2014
- 2014-12-30 CN CN201410840668.7A patent/CN104616707B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3406092A (en) * | 1963-12-20 | 1968-10-15 | Atomenergi Ab | Device for controlling the reactivity of a nuclear reactor |
| JPH01272994A (en) * | 1988-04-25 | 1989-10-31 | Hitachi Ltd | Reactor shutdown device |
| CN1588559A (en) * | 2004-07-07 | 2005-03-02 | 中国核动力研究设计院 | Shut-down method and shut-down system for low temperature heat supply or research pile super design reference fault |
| CN103871506A (en) * | 2012-12-11 | 2014-06-18 | 中国核动力研究设计院 | High-pressure safe injection system for nuclear power station |
| KR20140109164A (en) * | 2013-03-05 | 2014-09-15 | 한국원자력연구원 | In vessel boron injection system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118533A (en) * | 2015-09-09 | 2015-12-02 | 中国科学院近代物理研究所 | Reactivity control system, nuclear reactor and control method of nuclear reactor |
| CN109427422A (en) * | 2017-08-29 | 2019-03-05 | 华北电力大学 | A kind of dense boric acid injected system of emergency is as second set of reactor shut-off system of presurized water reactor |
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| Publication number | Publication date |
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| CN104616707B (en) | 2017-03-22 |
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