CN103055623B - Filtering collector - Google Patents
Filtering collector Download PDFInfo
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- CN103055623B CN103055623B CN201210556513.1A CN201210556513A CN103055623B CN 103055623 B CN103055623 B CN 103055623B CN 201210556513 A CN201210556513 A CN 201210556513A CN 103055623 B CN103055623 B CN 103055623B
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- Prior art keywords
- flange
- face
- outer sleeve
- companion flange
- outlet
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- 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.)
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- 238000001914 filtration Methods 0.000 title claims abstract description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 19
- 239000001307 helium Substances 0.000 abstract description 19
- 229910052734 helium Inorganic materials 0.000 abstract description 19
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 19
- 239000002245 particle Substances 0.000 abstract description 9
- 239000007789 gas Substances 0.000 abstract description 3
- 230000002285 radioactive effect Effects 0.000 abstract description 3
- 229910002804 graphite Inorganic materials 0.000 description 18
- 239000010439 graphite Substances 0.000 description 18
- 239000000428 dust Substances 0.000 description 17
- 239000000446 fuel Substances 0.000 description 12
- 230000004992 fission Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 239000002296 pyrolytic carbon Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000941 radioactive substance Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000013033 Triso Species 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention provides a filtering collector. The filtering collector comprises an inlet adapter flange, an inlet companion flange, an outer sleeve, an inner sleeve, a plurality of filtering elements, an outlet companion flange and an outlet adapter flange, wherein a first end face of the inlet companion flange is connected with the inlet adapter flange, a second end face of the inlet companion flange is connected with a first end face of the outer sleeve, a first end face of the outlet companion flange is connected with a second face of the outer sleeve, a second end face of the outlet companion flange is connected with the outlet adapter flange, the filtering elements and the inner sleeve are located inside the outer sleeve, the inner sleeve is contacted with one end of each filtering element, the end of each filtering element is close to the outlet companion flange, and the diameter of a filtering hole of one end of each filtering element, which is close to the inlet companion flange, is larger than the diameter of a filtering hole of the end of the filtering element, which is close to the outlet companion flange. The filtering collector can gradually filter and collect radioactive graphite powder in helium gas in a loop according to particle sizes under high temperature and high pressure, and no helium gas leaks out or leaks through intervals among the inner wall of the outer sleeve and the filtering elements.
Description
Technical field
The present invention relates to reactor engineering technical field, particularly relating to a kind of filter collector for collecting live graphite dust in HTGR primary Ioops helium.
Background technology
High-temperature gas-solid two-phase flow HTR-10 is the high temperature pebble-bed gas-cooled reactor uniquely run at present in the world, its structure from fuel, reactor core, primary Ioops and design of material and primary Ioops circulated helium, fuel handling mode and the mode by reactor core, all with ball bed modular high temperature gas cooled reactor nuclear power station project HTR-PM(High Temperature Modular Pebble Bed Reactor Project) there is great similitude.Researching high-temperature HTGR fission product piles the transport behavior in interior release behavior and primary Ioops, obtain the rule of fission product behavior, thus obtain the direct checking of HTGR radiogical safety, being an importance of HTGR inherent safety demonstration, is also the basis of HTGR safety analysis.
HTR-10 and HTR-PM demonstration project all adopts particle spheric fuel element, the fuel particle disperse that thousands of diameters are about 900um forms the spheric fuel element that diameter is 6cm among graphite matrix, wherein fuel particle adopts the form of TRISO coated particle, is namely about the UO2 fuel kernel core of 500um outer coated loose pyrolytic carbon layer, interior fine and close pyrolytic carbon layer, silicon carbide layer and outer fine and close pyrolytic carbon layer successively again at diameter.Under accidental conditions, in HTGR primary Ioops, radioactive substance is mainly from the radioactive fission product of fuel element release, and the main uranium from burst slug particle and matrix graphite of the fission product of fuel element release pollutes.In HTGR normal course of operation, fuel element is Multiple through then out in reactor core, the mutual friction of fuel element phase and with the friction such as loading and unloading material system tube wall, graphite can be caused to denude from fuel element and to enter primary Ioops helium system, form graphite dust.The fission product that can deposit in primary Ioops system some can deposit and be adsorbed onto on graphite dust, and graphite dust also can be deposited on primary coolant circuit pipe surface gradually along with in the process of circulated helium.When there is suddenly larger change in primary Ioops helium flow (when such as generation primary Ioops loses cold deperssurization emergency), graphite dust settling flux easier than the fission product being deposited on primary Ioops metal surface, radioactive substance concentration in primary Ioops helium is sharply increased, if now primary Ioops helium flows to environment in a large number, then will cause rolling up of Radioactive Release, become the important source item of accident.
At present, unclear for the absorption relation of graphite dust and fission product, and in HTR-10, the specific radioactivity (Cs-134, Cs-137, Ag-110m and I-131) of the solid fission product of the composition of graphite dust, concentration, domain size distribution and dust carrier band all needs to carry out experiment measuring.Dust filter in HTR-10 Helium purification system, its filter element is tubular structure, only have specific pore size filter, cannot carry out easily installing, dismantle and measuring, classified filtering collection can not be carried out to live graphite dust in primary Ioops according to particle size.
Summary of the invention
(1) technical problem that will solve
The object of the present invention is to provide a kind of filter collector, to overcome the problem can not carrying out collecting by filtration step by step in prior art to the live graphite dust in primary Ioops helium according to particle size.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of filter collector, this filter collector comprises entrance adapter flange, entrance companion flange, outer sleeve, inner sleeve, filter element, outlet companion flange and outlet adapter flange;
First end face of described entrance companion flange is connected with entrance adapter flange, and the second end face is connected with the first end face of outer sleeve;
First end face of described outlet companion flange is connected with the second end face of outer sleeve, and the second end face is connected with outlet adapter flange;
Described filter element and inner sleeve are all positioned at the inside of outer sleeve, and described inner sleeve contacts near the one end exporting companion flange with filter element; The pore size filter of described filter element near entrance companion flange one end is greater than the pore size filter near outlet companion flange one end.
Wherein, described filter collector also comprises pressure ring nut, and it is positioned at outer sleeve, removably connects with outer sleeve, and contacts with filter element one end near entrance companion flange.
Further, described pressure ring nut is threaded with adopting between outer sleeve, and pressure ring nut is provided with the groove that can coordinate special spanner.
Wherein, the first end face of described entrance companion flange is connected by the first seal with entrance adapter flange, and the second end face of described entrance companion flange welds mutually with the first end face of outer sleeve.
Wherein, the first end face of described outlet companion flange welds mutually with the second end face of outer sleeve, and the second end face of described outlet companion flange is connected by the second seal with outlet adapter flange.
Further, described entrance adapter flange, entrance companion flange, outer sleeve, outlet companion flange and outlet adapter flange are positioned on same axis.
Wherein, described filter element comprises stainless steel annulus, filters disk and sealing ring; Described sealing ring is between stainless steel annulus and outer sleeve; Described filtration disk is positioned at stainless steel annulus, and welds mutually with stainless steel annulus.
Wherein, described outer sleeve is provided with step near exit, is compressed between inner sleeve and step by pad and elastic component; Described pad is between inner sleeve and elastic component.
Further, described elastic component is disk spring.
(3) beneficial effect
Filter collector provided by the invention can carry out effective collecting by filtration to the live graphite dust in primary Ioops helium at high temperature under high pressure; Arrange filter element from big to small according to pore size filter, can realize carrying out effectively filtering step by step according to particle size to live graphite dust in helium, helium can not occur and to leak outside or by the clearance leakage of outer sleeve inwall and filter element; Use disk spring, pressure ring nut, filter element, the impact of expanding with heat and contract with cold between inner sleeve and pad can be eliminated; Pressure ring nut is provided with groove, can coordinate corresponding special spanner, is convenient to installation and removal.
Accompanying drawing explanation
Fig. 1 is the front view of filter collector provided by the invention;
Fig. 2 is the front view of a filter element of the filter collector shown in Fig. 1;
In figure, 1: entrance adapter flange; 2: the first seals; 3: entrance companion flange; 4: outer sleeve; 5: outlet companion flange; 6: the second seals; 7: outlet adapter flange; 8: disk spring; 9: pad; 10: inner sleeve; 11: filter element; 12: pressure ring nut; 13: stainless steel annulus; 14: filter disk; 15: sealing ring.
Detailed description of the invention
Be described in further detail below in conjunction with the detailed description of the invention of accompanying drawing to filter collector provided by the invention.These embodiments only for illustration of the present invention, and are not limitation of the present invention.
In describing the invention, it should be noted that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
As shown in Figure 1, filter collector provided by the invention comprises: entrance adapter flange 1, entrance companion flange 3, outer sleeve 4, inner sleeve 10, multiple filter element 11, outlet companion flange 5 and outlet adapter flange 7.Described filter element 11 and inner sleeve 10 are all positioned at the inside of outer sleeve 4; And described inner sleeve 10 contacts near the one end exporting companion flange 5 with filter element 11; Described filter element 11 can coordinate the filtration grade required for length selection of inner sleeve 10, and the pore size filter of described filter element 11 near entrance companion flange 3 one end is greater than the pore size filter near outlet companion flange 5 one end, can realize like this collecting the classified filtering of different-grain diameter graphite dust; The length of described inner sleeve 10 can be selected according to actual needs.
First end face of described entrance companion flange 3 is connected with entrance adapter flange 1, and the second end face is connected with the first end face of outer sleeve 4; First end face of described outlet companion flange 5 is connected with the second end face of outer sleeve 4, and the second end face is connected with outlet adapter flange 7.
First end face of described entrance companion flange 3 is connected by the first seal 2 with entrance adapter flange 1, and the second end face of described entrance companion flange 3 welds mutually with the first end face of outer sleeve 4; First end face of described outlet companion flange 5 welds mutually with the second end face of outer sleeve 4, and the second end face of described outlet companion flange 5 is connected by the second seal 6 with outlet adapter flange 7; Described first seal 2 and the second seal 6 all adopt bolt presses seal.Described entrance adapter flange 1, entrance companion flange 3, outer sleeve 4, outlet companion flange 5 and outlet adapter flange 7 form pressure-bearing shell; Described entrance adapter flange 1, entrance companion flange 3, outer sleeve 4, outlet companion flange 5 and outlet adapter flange 7 are positioned on same axis.The internal diameter of described entrance companion flange 3 mid portion is equal with the maximum inner diameter of entrance adapter flange 1 mid portion; The internal diameter of described outlet companion flange 5 mid portion is equal with the maximum inner diameter of outlet adapter flange 7 mid portion.
Described filter collector also comprises pressure ring nut 12, described pressure ring nut 12 is positioned at the inside of outer sleeve 4, described pressure ring nut 12 contacts with filter element 11 one end near entrance companion flange 3, and removably connect with outer sleeve 4, preferably be threaded between pressure ring nut 12 with outer sleeve 4 in the present embodiment, and pressure ring nut 12 is provided with groove, can tightens easily with the special spanner matched and relax; Described outer sleeve 4 is provided with step near exit, is compressed between inner sleeve 10 and step by pad 9 and elastic component; Described pad 9 is between inner sleeve 10 and elastic component; Described elastic component is between pad 9 and outer sleeve 4 step; Described elastic component is disk spring 8.
Described pressure ring nut 12 coordinates the step on bottom inner sleeve 10, disk spring 8, pad 9 and outer sleeve 4 to compress filter element 11, and can prevent axial expanding with heat and contract with cold;
As shown in Figure 2, the above filter element 11 comprises stainless steel annulus 13, filters disk 14 and sealing ring 15; Described sealing ring 15 is between stainless steel annulus 13 and outer sleeve 4; Described filtration disk 14 is positioned at stainless steel annulus 13, and welds mutually with stainless steel annulus 13; Described filtration disk 14 is sintered by powder of stainless steel and forms.
The operation principle of filter collector provided by the invention is: during use, entrance adapter flange 1 and outlet adapter flange 7 with together with reactor-loop pipeline welding, and realize the reducing from primary coolant circuit pipe to filter collector with corresponding entrance companion flange 3 and outlet companion flange 5 respectively by the first seal 2 and the second seal 6.HTHP helium carries live graphite dust and flows through entrance adapter flange 1, entrance companion flange 3, outer sleeve 4, pressure ring nut 12, filter element at different levels 11, inner sleeve 10, pad 9, disk spring 8, outlet companion flange 5 and outlet adapter flange 7.After expanding by entrance adapter flange 1, the graphite dust in helium flow can be collected on filter element 11 uniformly; Described pressure ring nut 12, inner sleeve 10, pad 9 and disk spring 8 are used for fixing filter element 11, make it to keep vertical with helium flow, can not blocking channel, and the groove on pressure ring nut 12 can coordinate corresponding special spanner, is convenient to mount and dismount; When sealing ring 15 between described filter element 11 and outer sleeve 4 can ensure that helium flows through filter element 11, helium can not leak between filter element 11 and outer sleeve 4 inwall, can realize the effective collection to live graphite dust.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.
Claims (8)
1. a filter collector, it is characterized in that, this filter collector comprises entrance adapter flange (1), entrance companion flange (3), outer sleeve (4), inner sleeve (10), multiple filter element (11), outlet companion flange (5) and outlet adapter flange (7);
First end face of described entrance companion flange (3) is connected with entrance adapter flange (1), and the second end face is connected with the first end face of outer sleeve (4);
First end face of described outlet companion flange (5) is connected with the second end face of outer sleeve (4), and the second end face is connected with outlet adapter flange (7);
Described filter element (11) and inner sleeve (10) are all positioned at the inside of outer sleeve (4), and described inner sleeve (10) contacts near the one end exporting companion flange (5) with filter element (11); The pore size filter of described filter element (11) near entrance companion flange (3) one end is greater than the pore size filter near outlet companion flange (5) one end;
Described filter element (11) comprises stainless steel annulus (13), filters disk (14) and sealing ring (15); Described sealing ring (15) is positioned between stainless steel annulus (13) and outer sleeve (4); Described filtration disk (14) is positioned at stainless steel annulus (13), and welds mutually with stainless steel annulus (13), and described filtration disk is sintered by powder of stainless steel and forms.
2. filter collector according to claim 1, it is characterized in that, described filter collector also comprises pressure ring nut (12), it is positioned at outer sleeve (4), removably connect with outer sleeve (4), and contact with filter element (11) one end near entrance companion flange (3).
3. filter collector according to claim 2, is characterized in that, described pressure ring nut (12) is threaded with adopting between outer sleeve (4), and pressure ring nut (12) is provided with the groove that can coordinate special spanner.
4. filter collector according to claim 1, it is characterized in that, first end face of described entrance companion flange (3) is connected by the first seal (2) with entrance adapter flange (1), and the second end face of described entrance companion flange (3) welds mutually with the first end face of outer sleeve (4).
5. filter collector according to claim 1, it is characterized in that, first end face of described outlet companion flange (5) welds mutually with the second end face of outer sleeve (4), and the second end face of described outlet companion flange (5) is connected by the second seal (6) with outlet adapter flange (7).
6. filter collector according to claim 1, it is characterized in that, described entrance adapter flange (1), entrance companion flange (3), outer sleeve (4), outlet companion flange (5) and outlet adapter flange (7) are positioned on same axis.
7. filter collector according to claim 2, is characterized in that, described outer sleeve (4) is provided with step near exit, is compressed between inner sleeve (10) and step by pad (9) and elastic component; Described pad (9) is positioned between inner sleeve (10) and elastic component.
8. filter collector according to claim 7, described elastic component is disk spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210556513.1A CN103055623B (en) | 2012-12-20 | 2012-12-20 | Filtering collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210556513.1A CN103055623B (en) | 2012-12-20 | 2012-12-20 | Filtering collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103055623A CN103055623A (en) | 2013-04-24 |
| CN103055623B true CN103055623B (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210556513.1A Active CN103055623B (en) | 2012-12-20 | 2012-12-20 | Filtering collector |
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| CN (1) | CN103055623B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308275B (en) * | 2013-05-20 | 2016-01-13 | 清华大学 | The device of simulation high temperature nuclear reactor cut accident graphite dust discharge and discharge capacity method of testing |
| CN103310857B (en) * | 2013-05-20 | 2015-10-28 | 清华大学 | Analyze the device and method of graphite dust resuspension rule in high temperature nuclear reactor cut accident |
| CN106166415A (en) * | 2016-08-26 | 2016-11-30 | 赛洛克流体设备成都有限公司 | A kind of be applicable to instrument system the pneumatic filter of improvement |
| CN107469489A (en) * | 2017-10-13 | 2017-12-15 | 江苏绿尚环保科技有限公司 | A kind of discarded flue dust guide device |
| CN110097989B (en) * | 2018-01-31 | 2022-11-18 | 中国辐射防护研究院 | Graphite dust pollution removing method for pebble-bed high-temperature gas cooled reactor |
| CN110097979B (en) * | 2018-01-31 | 2022-11-18 | 中国辐射防护研究院 | Graphite dust collecting device for ball bed high-temperature gas cooled reactor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3017729B1 (en) * | 1999-03-26 | 2000-03-13 | 核燃料サイクル開発機構 | HEPA filter device with flange connection |
| CN100510334C (en) * | 2007-05-25 | 2009-07-08 | 吉林大学 | Diesel engine particle catcher |
| CN201154270Y (en) * | 2008-01-22 | 2008-11-26 | 程代康 | Graded gas filter |
| CN201493021U (en) * | 2009-02-23 | 2010-06-02 | 浙江叁益人防工程设备有限公司 | Filter absorber |
| JP2011007549A (en) * | 2009-06-24 | 2011-01-13 | Ask Sanshin Engineering Co Ltd | Dust collector of air motor type |
| CN201427008Y (en) * | 2009-07-02 | 2010-03-24 | 河北省电力研究院 | Sulfur hexafluoride gas moisture measurement filtering device |
| CN202376867U (en) * | 2011-12-22 | 2012-08-15 | 云南玉溪水松纸厂 | Organic printing waste gas filter |
| CN102772956A (en) * | 2012-08-20 | 2012-11-14 | 戴若夫 | Spiral dust collector capable of being detached conveniently |
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2012
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| CN103055623A (en) | 2013-04-24 |
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Effective date of registration: 20210112 Address after: 100193 building 26, Zhongguancun Software Park, 8 Dongbeiwang West Road, Haidian District, Beijing Patentee after: CHINERGY Co.,Ltd. Address before: 100084 mailbox 100084-82, Beijing City Patentee before: TSINGHUA University |