CN104616707B - 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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- CN104616707B CN104616707B CN201410840668.7A CN201410840668A CN104616707B CN 104616707 B CN104616707 B CN 104616707B CN 201410840668 A CN201410840668 A CN 201410840668A CN 104616707 B CN104616707 B CN 104616707B
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
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
A kind of the present invention relates to nuclear reactor field, more particularly to boron injection system for research reactor Second shutdown system.
Background technology
Shutdown is capable of achieving under any operating mode, is the most important function of ensureing reactor safety, for this purpose, generally needing to set
Two sets of reactor shut-off systems are put, this two sets of systems, in addition to mutual independence, also require have in terms of mode or principle farthest not
Together, reducing the probability of common cause failure.Research reactor the first reactor shut-off system most common method is to fall or upper plug in control rod, and the
Two reactor shut-off systems, in addition to a few studies heap can be by heavy water of the discharge as neutron reflector, most of research reactors are still
Be using the movement of control rod as the second shutdown means, so, two sets of reactor shut-off systems in mode or principle be it is the same, it is and many
The requirement of sample principle meets not ideal.
In view of drawbacks described above, creator of the present invention is through prolonged research and tests, and is finally obtained the present invention.
The content of the invention
It is an object of the invention to provide a kind of simple structure, action be quick, manufacture install easily, maintenance is conveniently used for
The boron injection system of research reactor Second shutdown system, to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is：There is provided a kind of for the second shutdown of research reactor system
The boron injection system of system, the system include boron flow container, imported valve, note boron pipe, outlet valve and boron liquid recycling can, the boron flow container
Liquid outlet by the first pipeline with it is described note boron pipe inlet be connected, it is described note boron pipe liquid outlet pass through second pipe and
The inlet connection of the boron liquid recycling can, the imported valve are arranged on first pipeline, and the outlet valve is arranged
On the second pipe, the note boron pipe is arranged on around reactor fuel component.
Further, also including compressed air source unit, the compressed air source unit is provided the boron injection system for giving the boron injection system
Pressure differential.
Further, the gas outlet of the compressed air source unit is connected with the boron flow container by the 3rd pipeline, the 3rd pipeline
The first valve of upper setting, the 3rd pipeline, are arranged on the 4th pipeline by the 4th pipeline communication with first pipeline
Inlet end of the connection end of the second valve, the 4th pipeline and the 3rd pipeline positioned at first valve, the described 4th
The connection end of pipeline and first pipeline is located at the liquid outlet of the imported valve.
Further, the boron injection system also includes vacuum extractor, and the vacuum extractor is for the boron injection system
Pressure differential is provided.
Further, the vacuum equipment is connected with the second pipe by the 5th pipeline, by the 6th pipeline with it is described
Boron liquid recycling can connects, and arranges the 3rd valve on the 5th pipeline, the 4th valve of setting on the 6th pipeline, and the described 5th
The connection end of pipeline and the second pipe is located at the liquid feeding end of the outlet valve.
Further, the compressed air source unit can be nitrogen cylinder, helium tank or gas tank.
Compared with the prior art, the beneficial effects of the present invention is：Provided by the present invention for the second shutdown of research reactor system
The boron injection system of system, simple structure, action are quick, manufacture install easily, maintenance it is convenient, and B solution and reactor coolant
It is mutually isolated, after having performed shutdown function, any process need not be carried out to reactor coolant, recovery that can be quickly is reacted
The normal operation of heap.
Description of the drawings
Structural representations of the Fig. 1 for the boron injection system for research reactor Second shutdown system of the embodiment of the present invention one；
Structural representations of the Fig. 2 for the boron injection system for research reactor Second shutdown system of the embodiment of the present invention two；
Structural representations of the Fig. 3 for the boron injection system for research reactor Second shutdown system of the embodiment of the present invention three；
Structural representations of the Fig. 4 for the boron injection system for research reactor Second shutdown system of the embodiment of the present invention four.
Specific embodiment
For ease of further understanding the technology contents of the present invention, the invention will be further described below in conjunction with the accompanying drawings.
Embodiment one
As shown in figure 1, the structure for the boron injection system for research reactor Second shutdown system of the embodiment of the present invention one is shown
It is intended to, the boron injection system includes boron flow container 1, imported valve 2, note boron pipe 3, outlet valve 4 and boron liquid recycling can 5.The boron liquid
The liquid outlet of tank 1 be connected with the inlet of the note boron pipe 3 by the first pipeline 101, and the liquid outlet of the note boron pipe 3 passes through the
Two pipelines 102 are connected with the inlet of the boron liquid recycling can 5, and the imported valve 2 is arranged on first pipeline 101,
The outlet valve 4 is arranged on the second pipe 102, in the present embodiment, the note boron pipe 3 at least two, and parallel connection sets
Put around 6 fuel component 7 of reactor.The boric acid solution for meeting concentration requirement is contained in the boron flow container 1.When there is thing
Therefore situations such as when wanting shutdown, open the imported valve 2, close the outlet valve 4, the pressure differential provided by potential difference is by institute
The boric acid solution stated in boron flow container 1 is flowed in the note boron pipe 3 by first pipeline 101, notes the boric acid solution in boron pipe 3
Neutron is absorbed, so as to reach the purpose of shutdown.After accident is released, the imported valve 2 is closed, opens the outlet valve 4,
Still rely on pressure differential and the boric acid solution in the note boron pipe 3 is flowed into into the boron liquid recycling can 5 by the second pipe 102
It is interior, it is that reactor startup is prepared.
Embodiment two
As shown in Fig. 2 the structure for the boron injection system for research reactor Second shutdown system of the embodiment of the present invention two is shown
It is intended to, the present embodiment is that the boron injection system of the present embodiment also includes compressed air source unit 10, for giving with one difference of embodiment
The boron injection system provides pressure differential.The gas outlet of the compressed air source unit 10 is connected with the boron flow container 1 by the 3rd pipeline 103,
First valve 8 is set on the 3rd pipeline 103, and the 3rd pipeline 103 passes through the 4th pipeline with first pipeline 101
104 connections, arrange the second valve 9, the connection of the 4th pipeline 104 and the 3rd pipeline 103 on the 4th pipeline 104
The connection end of inlet end of the end positioned at first valve 8, the 4th pipeline 104 and first pipeline 101 is located at described
The liquid outlet of imported valve 2.Compressed air source unit 10 can be nitrogen cylinder, helium tank, gas tank etc..
When wanting shutdown situations such as there is accident, the imported valve 2 is opened, if now pressure is had by oneself not in boron flow container 1
Be enough to flow in the note boron pipe 3 boric acid solution in the boron flow container 1 by first pipeline 101, open described the
One valve 8, closes second valve 9, and the gas of the compressed air source unit 10 enters the boron liquid by the 3rd pipeline 103
In tank 1, the boric acid solution in the boron flow container 1 is injected the note boron pipe 3 by first pipeline 101 by increase pressure differential
Interior, the boric acid solution noted in boron pipe 3 absorbs neutron, so as to reach the purpose of shutdown.After accident is released, first valve is closed
Door 8 and the imported valve 2, open second valve 9 and outlet valve 4, are provided by the gas of the compressed air source unit 10
Pressure the boric acid solution in the note boron pipe 3 is pressed in the boron liquid recycling can 5, for opening by the second pipe 102
Heap is prepared.
Embodiment three
As shown in figure 3, the structure for the boron injection system for research reactor Second shutdown system of the embodiment of the present invention three is shown
It is intended to, the present embodiment is that the boron injection system of the present embodiment also includes vacuum extractor 13, is used for one difference of embodiment
Pressure differential is provided to the boron injection system.The vacuum equipment 13 is connected with the second pipe 102 by the 5th pipeline 105, is led to
Cross the 6th pipeline 106 to be connected with the boron liquid recycling can 5, the 3rd valve 11, the 6th pipe are set on the 5th pipeline 105
The connection end for arranging the 4th valve 12, the 5th pipeline 105 and the second pipe 102 on road 106 is located at the outlet valve
The liquid feeding end of door 4.
When wanting shutdown situations such as there is accident, the imported valve 2 is opened, if now pressure is had by oneself not in boron flow container 1
Be enough to flow in the note boron pipe 3 boric acid solution in the boron flow container 1 by first pipeline 101, open described the
Three valves 11, close the 4th valve 12 and outlet valve 4, start the vacuum extractor 13, are produced by evacuation negative
Boric acid solution in the boron flow container 1 is injected in the note boron pipe 3 by pressure, increase pressure differential by first pipeline 101, note
Boric acid solution in boron pipe 3 absorbs neutron, so as to reach the purpose of shutdown.After accident is released, the 3rd valve 11 is closed
With the imported valve 2, the 4th valve 12 and outlet valve 4 is opened, negative pressure is produced by evacuation, by the note boron pipe
Boric acid solution in 3 is pressed in the boron liquid recycling can 5 by the second pipe 102, is that reactor startup is prepared.
Example IV
As shown in figure 4, the structure for the boron injection system for research reactor Second shutdown system of the embodiment of the present invention four is shown
It is intended to, the boron injection system includes boron flow container 1, imported valve 2, note boron pipe 3, outlet valve 4, boron liquid recycling can 5, compressed air source unit 10
With vacuum extractor 13.The liquid outlet of the boron flow container 1 is connected with the inlet of the note boron pipe 3 by the first pipeline 101, institute
The liquid outlet for stating note boron pipe 3 is connected with the inlet of the boron liquid recycling can 5 by second pipe 102, and the imported valve 2 sets
Put on first pipeline 101, the outlet valve 4 is arranged on the second pipe 102, the note boron pipe 3 is at least
Two, it is arranged in parallel around 6 fuel component 7 of reactor.The boric acid that 1 interior splendid attire of the boron flow container meets concentration requirement is molten
Liquid.The gas outlet of the compressed air source unit 10 is connected with the boron flow container 1 by the 3rd pipeline 103, is set on the 3rd pipeline 103
The first valve 8 is put, the 3rd pipeline 103 is connected by the 4th pipeline 104 with first pipeline 101, the 4th pipeline
The connection end for arranging the second valve 9, the 4th pipeline 104 and the 3rd pipeline 103 on 104 is located at first valve 8
Inlet end, the connection end of the 4th pipeline 104 and first pipeline 101 is located at the liquid outlet of the imported valve 2.Gas
Source device 10 can be nitrogen cylinder, helium tank, gas tank etc..The vacuum equipment 13 passes through the 5th pipeline 105 and described second
Pipeline 102 connects, and is connected with the boron liquid recycling can 5 by the 6th pipeline 106, arranges the 3rd valve on the 5th pipeline 105
Door 11, arranges the connection end of the 4th valve 12, the 5th pipeline 105 and the second pipe 102 on the 6th pipeline 106
Positioned at the liquid feeding end of the outlet valve 4.
When wanting shutdown situations such as there is accident, the pressure differential provided using compressed air source unit 10 or vacuum extractor 13 is all
It is not enough to flow in the note boron pipe 3 boric acid solution in the boron flow container 1 by first pipeline 101, needs to pass through
When combination can reach required pressure differential, so that it may realize shutdown using the system of the present embodiment.Open described
One valve 8, imported valve 2 and the 3rd valve 11, close second valve 9, the 4th valve 12 and outlet valve 4, by gas
Boric acid solution in the boron flow container 1 is passed through described first by the effect of source device 10 and vacuum extractor 13, increase pressure differential
Pipeline 101 is injected in the note boron pipe 3, and the boric acid solution noted in boron pipe 3 absorbs neutron, so as to reach the purpose of shutdown.Work as thing
Therefore after releasing, first valve 8, imported valve 2 and the 3rd valve 11 is closed, open second valve 9, the 4th valve 12
With outlet valve 4, again by the effect of compressed air source unit 10 and vacuum extractor 13, by the boric acid solution in the note boron pipe 3
It is pressed in the boron liquid recycling can 5 by the second pipe 102, is that reactor startup is prepared.
Using the boron injection system provided by the present invention for research reactor Second shutdown system, simple structure, action are quick, system
Make and easy, maintenance is installed conveniently, and B solution is mutually isolated with reactor coolant, need not be right after having performed shutdown function
Reactor coolant carries out any process, the normal operation of recovery reactor that can be quickly.
Presently preferred embodiments of the present invention is the foregoing is only, is merely illustrative for the purpose of the present invention, and it is non-limiting
's.Those skilled in the art understanding, can carry out many changes to which in the spirit and scope limited by the claims in the present invention,
Modification, in addition it is equivalent, but fall within protection scope of the present invention.
Claims (4)
1. a kind of boron injection system for research reactor Second shutdown system, it is characterised in that the system includes boron flow container, inlet valve
Door, note boron pipe, outlet valve and boron liquid recycling can, the liquid outlet of the boron flow container note entering for boron pipe by the first pipeline with described
Liquid mouth connects, and the liquid outlet of the note boron pipe is connected with the inlet of the boron liquid recycling can by second pipe, the import
Valve is arranged on first pipeline, and the outlet valve is arranged on the second pipe, and the note boron pipe is arranged on instead
Answer around heap fuel component；
Also including compressed air source unit, the compressed air source unit provides pressure differential for giving the boron injection system to the boron injection system；
The gas outlet of the compressed air source unit is connected with the boron flow container by the 3rd pipeline, arranges the first valve on the 3rd pipeline
Door, the 3rd pipeline arrange second valve on the 4th pipeline with first pipeline by the 4th pipeline communication, described
The connection end of the 4th pipeline and the 3rd pipeline is located at the inlet end of first valve, the 4th pipeline and described first
The connection end of pipeline is located at the liquid outlet of the imported valve.
2. a kind of boron injection system for research reactor Second shutdown system as claimed in claim 1, it is characterised in that the note
Also including vacuum extractor, the vacuum extractor provides pressure differential for giving the boron injection system to boron system.
3. a kind of boron injection system for research reactor Second shutdown system as claimed in claim 2, it is characterised in that described true
Empty device is connected with the second pipe by the 5th pipeline, is connected with the boron liquid recycling can by the 6th pipeline, and described
3rd valve is set on five pipelines, the 4th valve, the 5th pipeline and the second pipe are set on the 6th pipeline
Connection end is located at the liquid feeding end of the outlet valve.
4. a kind of boron injection system for research reactor Second shutdown system as claimed in claim 3, it is characterised in that the gas
Source device 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104616707A CN104616707A (en) | 2015-05-13 |
| CN104616707B true CN104616707B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| CN (1) | CN104616707B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118533B (en) * | 2015-09-09 | 2017-07-14 | 中国科学院近代物理研究所 | The control method of reactivity control system, nuclear reactor and 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1090824A (en) * | 1963-12-20 | 1967-11-15 | Atomenergi Ab | Device for controlling the reactivity of a nuclear reactor having a forced coolant circulation system |
| JPH01272994A (en) * | 1988-04-25 | 1989-10-31 | Hitachi Ltd | Reactor shutdown device |
| CN1271640C (en) * | 2004-07-07 | 2006-08-23 | 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 |
| CN103871506B (en) * | 2012-12-11 | 2016-12-21 | 中国核动力研究设计院 | A kind of nuclear power station high-pressure safe injection system |
| KR101456575B1 (en) * | 2013-03-05 | 2014-10-31 | 한국원자력연구원 | In vessel boron injection system |
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2014
- 2014-12-30 CN CN201410840668.7A patent/CN104616707B/en active Active
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| CN104616707A (en) | 2015-05-13 |
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