CN109036604A - A kind of novel reactor core filter device - Google Patents
A kind of novel reactor core filter device Download PDFInfo
- Publication number
- CN109036604A CN109036604A CN201810803897.XA CN201810803897A CN109036604A CN 109036604 A CN109036604 A CN 109036604A CN 201810803897 A CN201810803897 A CN 201810803897A CN 109036604 A CN109036604 A CN 109036604A
- Authority
- CN
- China
- Prior art keywords
- tube body
- spring
- reactor core
- filter
- receiving portion
- 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.)
- Granted
Links
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/28—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core
- G21C19/30—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products deterioration or corrosion products, impurities, e.g. by cold traps
- G21C19/307—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products deterioration or corrosion products, impurities, e.g. by cold traps specially adapted for liquids
-
- 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 kind of novel reactor core filter devices, in the reactor core of presurized water reactor comprising: device noumenon (1) comprising spring receiving portion (10), the first tube body (11) and the second tube body (12) for setting gradually and being connected to；Compression bar (2), the compression bar (2) is arranged in the spring receiving portion (10) and the first tube body (11), its first end extends in second tube body (12), the first end is fixedly installed two panels garter spring piece (21), its second end is provided with operation handle (20), is contained on the position of spring receiving portion (10) and is fixed with one against piece (22)；Second tube body (12) lower part is provided with relief hole (120), wears for the end of the garter spring piece (21) and exposes the second tube body (12) outside.Implement the present invention, have many advantages, such as convenient for installation and maintenance, filter effect is good and safety is good.
Description
Technical field
The present invention relates to technical field of nuclear power, more particularly to a kind of novel reactor core filter device.
Background technique
In-pile component filter assemblies are mounted in in-pile component reactor core lower plate, for retaining the foreign matter in major loop.
Existing some in-pile component filter assemblies are usually monolithic construction, need the mode compressed by using screw thread
It is fixed with reactor core lower plate.The place but existing this structure comes with some shortcomings, firstly, installation is more complicated,
It is more troublesome to carry out maintenance update；In addition, if there are when larger foreign matter, may blocking filter screen in major loop, or it is broken
Bad filter screen, so that foreign matter be made to enter in steam generator, there are biggish security risks.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of novel reactor core filter device, with installation maintenance
Conveniently, the advantages that filter effect is good and safety is good.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of novel reactor core filter device, for presurized water reactor
In reactor core, include at least:
Device noumenon comprising spring receiving portion, the first tube body and the second tube body for setting gradually and being connected to, the spring hold
It receives and is provided with spring in portion, filter screen is provided in first tube body, filter plate, the mistake are provided in second tube body
Multiple filter hole are provided on filter plate；
Compression bar, the compression bar are arranged in the spring receiving portion and the first tube body, and first end extends to second pipe
In vivo, the first end is fixedly installed two panels garter spring piece；Its second end is provided with operation handle；It is contained in spring appearance
Receive portion position on be fixed with one against piece；
Wherein, the spring is set on the compression bar, and its one end far from first tube body offsets with described against piece
It leans on；The caliber of first tube body is greater than the caliber of second tube body, first tube body and second tube body junction
Form abutment face；Second tube body lower part is provided with relief hole, wears for the end of the garter spring and exposes described
Outside two tube bodies.
Wherein, described two two panels garter spring pieces are in an acute angle, and each tight spring leaf is towards the end of the relief hole
Portion is upward.
Wherein, it is provided with tightening slot on second inboard wall of tube body and the relief hole same plane, for the clamping
The end of spring against.
Wherein, discharge orifice is arranged at intervals on the outer wall of first tube body.
Wherein, the intracorporal filter screen of the first pipe covers the discharge orifice.
Wherein, the outer diameter of second tube body and the through-hole internal diameter of reactor core lower plate are adapted.
Wherein, it is located on second tube body on the position below the filter plate and is provided with water inlet.
Implement the present invention, have it is following the utility model has the advantages that
Implement device provided by the invention, by being provided with filter plate at water inlet end, the mistake of the first step can be carried out to foreign matter
Filter, is then further filtered by filter screen again；So as to ensure that nuclear steam supply system string is washed, in cold and hot trial
Soft, hard foreign matter be all trapped in underseal head cavity (the second tube body), prevent hardware damage nuclear steam supply system component devices,
Filter effect is good and safe enough；
Meanwhile filter element of the invention can change according to the size of panel aperture under reactor core, to adapt to the pressure water of different model
Heap unit；
In addition, the device of the invention and the installation maintenance process of core bottom are very easy, it in actual application, can be fast
The fast only hole installation of monomer, can also will carry out integral installation after multiple be combined；It is also possible to be carried out by long rod tool
The installation of certain distance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of longitudinal section view of one embodiment of novel reactor core filter device provided by the invention；
Fig. 2 is the sectional view along A-A of Fig. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, being a kind of longitudinal section view of one embodiment of novel reactor core filter device provided by the invention；One
And as shown in connection with fig. 2.In this embodiment, the novel reactor core filter device is in the reactor core of presurized water reactor, which is characterized in that
It is included at least:
Device noumenon 1 comprising spring receiving portion 10, the first tube body 11 and the second tube body 12 for setting gradually and being connected to；Institute
It states and is provided with spring 4 in spring receiving portion 10；Multiple discharge orifices 110, institute are arranged at intervals on the outer wall of first tube body 11
It states the first tube body 11 and is internally provided with filter screen 3；It is provided with filter plate 5 in second tube body 12, is arranged on the filter plate 5
There are multiple filter hole 50；
Compression bar 2, the compression bar 2 are arranged in the spring receiving portion 10 and the first tube body 11, and first end extends to described
In second tube body 12, the first end is fixedly installed two panels garter spring piece 21, and second end is provided with operation handle 20,
It is contained on the position of spring receiving portion 10 and is fixed with one against piece 22；
Wherein, the spring 4 is set on the compression bar 2, and the spring 4 is supported far from one end of first tube body 11 with described
It leans by piece 22；The caliber of first tube body 11 is greater than the caliber of second tube body 12, first tube body 11 and institute
It states 12 junction of the second tube body and forms abutment face 112；Second tube body, 12 lower part is provided with relief hole 120, for the clamping
The end of spring leaf 21 wears and exposes outside second tube body 12.
Wherein, the two panels garter spring piece 21 is in an acute angle, and each tight spring leaf 21 is towards the relief hole 120
End is upward.
Wherein, it is provided with tightening slot 121 on 12 inner wall of the second tube body and 120 same plane of relief hole, supplies
The end of the garter spring piece 21 against.
Wherein, the filter plate 5 is located at the downside of the first end of the compression bar 2.
Wherein, the filter screen 3 in first tube body 11 covers the discharge orifice 110.
Wherein, the outer diameter of second tube body 12 and the through-hole internal diameter of reactor core lower plate 5 are adapted.
Wherein, it is located on the position below the filter plate 5 in second tube body 12 and is provided with water inlet (not shown).
It is understood that following installations and use process for briefly introducing device provided by the present invention.
Novel reactor core filter device is mounted on 4 holes in reactor core lower plate corresponding to every group fuel assembly in reactor
It is interior.Before the hole of insertion reactor core lower plate, the two panels clamping leaf spring 21 of 2 end of compression bar is accommodated into tightening slot 121, at this time
The torsional spring of two panels clamping leaf spring 21 is in contraction state.When inserting in the hole, it connect the first tube body 11 with, the second tube body 12
After the upper surface fitting for locating the abutment face 112 formed and reactor core lower plate 5, it is pressed downward operation handle 20, receives clamping leaf spring 21
It is reduced to a certain degree, clamping leaf spring 21 is skidded off from tightening slot 121.Then operation handle 20 is rotated by 90 °, compression bar 2 drives
Clamping leaf spring 21 is also rotated by 90 °, so that clamping leaf spring 21 be made to be directed at relief hole 120.Operation handle 20 is unclamped, at this point, bullet
Spring 4 drives compression bar 2 to rise, and the torsional spring of clamping leaf spring 21 also starts to release stress, to make clamping leaf spring 21 from relief hole
120 stretch out, and end is bonded with 5 lower surface of reactor core lower plate, to realize the compression of filter device.
When starting to work, water flow (such as coolant) enters novel reactor core filter device, when in water flow there are when foreign matter,
Can once be filtered in the filter hole 50 of the filter plate 5 of device lower part, biggish foreign matter is filtered, and lesser foreign matter into
It is filtered after entering filter device by closeer filter screen 3, so that reaching prevents foreign matter from entering steam generator.So as to avoid
In the prior art because larger foreign matter destroys filter screen because blocking filter screen, enter foreign matter in steam generator.
It is understood that in other examples, it can be that 4 novel reactor core filter devices can be combined into one
The new filter device of monoblock type, to increase the safety of filter device.
Implement the present invention, have it is following the utility model has the advantages that
Implement device provided by the invention, by being provided with filter plate at water inlet end, the mistake of the first step can be carried out to foreign matter
Filter, is then further filtered by filter screen again；So as to ensure that nuclear steam supply system string is washed, in cold and hot trial
Soft, hard foreign matter be all trapped in underseal head cavity (the second tube body), prevent hardware damage nuclear steam supply system component devices,
Filter effect is good and safe enough；
Meanwhile filter element of the invention can change according to the size of panel aperture under reactor core, to adapt to the pressure water of different model
Heap unit；
In addition, the device of the invention and the installation maintenance process of core bottom are very easy, it in actual application, can be fast
The fast only hole installation of monomer, can also will carry out integral installation after multiple be combined；It is also possible to carry out one by long rod tool
The installation of set a distance.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (7)
1. a kind of novel reactor core filter device, in the reactor core of presurized water reactor, which is characterized in that it is included at least:
Device noumenon (1) comprising spring receiving portion (10), the first tube body (11) and the second tube body for setting gradually and being connected to
(12)；Spring 4 is provided in the spring receiving portion (10)；Multiple streams are arranged at intervals on the outer wall of first tube body (11)
Water hole (110), first tube body (11) are internally provided with filter screen (3)；Second tube body (12) is inner to be provided with filter plate
(5), multiple filter hole (50) are provided on the filter plate (5)；
Compression bar (2), the compression bar (2) are arranged in the spring receiving portion (10) and the first tube body (11), and first end is prolonged
It extends in second tube body (12), the first end is fixedly installed two panels garter spring piece (21), and second end is provided with
Operation handle (20) is contained on the position of spring receiving portion (10) and is fixed with one against piece (22)；
Wherein, the spring 4 is set on the compression bar (2), the spring 4 one end and institute far from first tube body (11)
It states and leans against piece (22)；The caliber of first tube body (11) be greater than second tube body (12) caliber, described first
Tube body (11) and the second tube body (12) junction form abutment face 112；Second tube body (12) lower part is provided with release
Hole (120) wears for the end of the garter spring piece (21) and exposes the second tube body (12) outside.
2. device as described in claim 1, which is characterized in that the two panels garter spring piece (21) is in an acute angle, and each
Tight spring leaf 21 towards the end of the relief hole (120) upward.
3. device as claimed in claim 2, which is characterized in that in the second tube body (12) inner wall and the relief hole
(120) be provided on same plane tightening slot (121), for the garter spring piece (21) end against.
4. device as claimed in claim 3, which is characterized in that the filter plate (5) is located at the first end of the compression bar (2)
Downside.
5. device as claimed in claim 4, which is characterized in that the filter screen (3) in first tube body (11) covers
The discharge orifice (110).
6. device as claimed in claim 5, which is characterized in that the outer diameter of second tube body (12) and reactor core lower plate (5)
Through-hole internal diameter is adapted.
7. device as claimed in claim 6, which is characterized in that in the case where second tube body (12) is located at the filter plate (5)
Water inlet is provided on the position of side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803897.XA CN109036604B (en) | 2018-07-20 | 2018-07-20 | Reactor core filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803897.XA CN109036604B (en) | 2018-07-20 | 2018-07-20 | Reactor core filtering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109036604A true CN109036604A (en) | 2018-12-18 |
| CN109036604B CN109036604B (en) | 2024-01-16 |
Family
ID=64644692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810803897.XA Active CN109036604B (en) | 2018-07-20 | 2018-07-20 | Reactor core filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109036604B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8624023D0 (en) * | 1985-10-07 | 1986-11-12 | Westinghouse Electric Corp | Reactor internals loose parts strainer |
| CN1637956A (en) * | 2004-01-05 | 2005-07-13 | 西屋电气有限责任公司 | Nuclear fuel assembly debris filter bottom nozzle |
| CN1771567A (en) * | 2004-02-10 | 2006-05-10 | 韩国原子力研究所 | Device and process for cooling molten core material released from a reactor vessel |
| JP2006201107A (en) * | 2005-01-24 | 2006-08-03 | Global Nuclear Fuel-Japan Co Ltd | Foreign matter capturing apparatus, boiling water reactor and its operation method |
| CN101587755A (en) * | 2008-05-21 | 2009-11-25 | 西屋电气有限责任公司 | Nuclear core component hold-down assembly |
| CN201930616U (en) * | 2011-01-13 | 2011-08-17 | 中广核工程有限公司 | Nuclear reactor internal filter device |
| CN102371088A (en) * | 2010-08-12 | 2012-03-14 | 韩国水力原子力株式会社 | Strainer filtering apparatus including filtering tube |
| CN102576571A (en) * | 2009-10-16 | 2012-07-11 | 法国原子能及替代能源委员会 | Nuclear fuel assembly and nuclear reactor comprising such assemblies |
| CN103106931A (en) * | 2013-02-04 | 2013-05-15 | 中国核动力研究设计院 | Reactor internal suitable for supercritical water-cooled reactor two-flow core |
| CN103177782A (en) * | 2013-01-08 | 2013-06-26 | 上海核工程研究设计院 | Lower reactor internals for reactor |
| CN203026145U (en) * | 2012-12-10 | 2013-06-26 | 中国核动力研究设计院 | Pressing member adaptive to inserting measuring instrument into fuel assembly from upper part of reactor core |
| CN203055477U (en) * | 2013-02-04 | 2013-07-10 | 中国核动力研究设计院 | Flow-concentrating double flow path supercritical water cooled reactor |
| CN103377735A (en) * | 2012-04-27 | 2013-10-30 | 上海核工程研究设计院 | Reactor internal on lower part of reactor |
| CN208570130U (en) * | 2018-07-20 | 2019-03-01 | 中广核研究院有限公司 | A kind of novel reactor core filter device |
-
2018
- 2018-07-20 CN CN201810803897.XA patent/CN109036604B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8624023D0 (en) * | 1985-10-07 | 1986-11-12 | Westinghouse Electric Corp | Reactor internals loose parts strainer |
| CN1637956A (en) * | 2004-01-05 | 2005-07-13 | 西屋电气有限责任公司 | Nuclear fuel assembly debris filter bottom nozzle |
| CN1771567A (en) * | 2004-02-10 | 2006-05-10 | 韩国原子力研究所 | Device and process for cooling molten core material released from a reactor vessel |
| JP2006201107A (en) * | 2005-01-24 | 2006-08-03 | Global Nuclear Fuel-Japan Co Ltd | Foreign matter capturing apparatus, boiling water reactor and its operation method |
| CN101587755A (en) * | 2008-05-21 | 2009-11-25 | 西屋电气有限责任公司 | Nuclear core component hold-down assembly |
| CN102576571A (en) * | 2009-10-16 | 2012-07-11 | 法国原子能及替代能源委员会 | Nuclear fuel assembly and nuclear reactor comprising such assemblies |
| CN102371088A (en) * | 2010-08-12 | 2012-03-14 | 韩国水力原子力株式会社 | Strainer filtering apparatus including filtering tube |
| CN201930616U (en) * | 2011-01-13 | 2011-08-17 | 中广核工程有限公司 | Nuclear reactor internal filter device |
| CN103377735A (en) * | 2012-04-27 | 2013-10-30 | 上海核工程研究设计院 | Reactor internal on lower part of reactor |
| CN203026145U (en) * | 2012-12-10 | 2013-06-26 | 中国核动力研究设计院 | Pressing member adaptive to inserting measuring instrument into fuel assembly from upper part of reactor core |
| CN103177782A (en) * | 2013-01-08 | 2013-06-26 | 上海核工程研究设计院 | Lower reactor internals for reactor |
| CN103106931A (en) * | 2013-02-04 | 2013-05-15 | 中国核动力研究设计院 | Reactor internal suitable for supercritical water-cooled reactor two-flow core |
| CN203055477U (en) * | 2013-02-04 | 2013-07-10 | 中国核动力研究设计院 | Flow-concentrating double flow path supercritical water cooled reactor |
| CN208570130U (en) * | 2018-07-20 | 2019-03-01 | 中广核研究院有限公司 | A kind of novel reactor core filter device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109036604B (en) | 2024-01-16 |
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