SE430127B - NUCLEAR REACTOR REFRIGERATOR INCLUDING FILTER - Google Patents

NUCLEAR REACTOR REFRIGERATOR INCLUDING FILTER

Info

Publication number
SE430127B
SE430127B SE7907077A SE7907077A SE430127B SE 430127 B SE430127 B SE 430127B SE 7907077 A SE7907077 A SE 7907077A SE 7907077 A SE7907077 A SE 7907077A SE 430127 B SE430127 B SE 430127B
Authority
SE
Sweden
Prior art keywords
filter
cassette
nuclear reactor
circuit according
flange
Prior art date
Application number
SE7907077A
Other languages
Swedish (sv)
Other versions
SE7907077L (en
Inventor
L Liljegren
Original Assignee
Asea Atom Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asea Atom Ab filed Critical Asea Atom Ab
Priority to SE7907077A priority Critical patent/SE430127B/en
Priority to CA000340573A priority patent/CA1137419A/en
Priority to DE3030321A priority patent/DE3030321C2/en
Priority to CH6159/80A priority patent/CH649224A5/en
Priority to ES494398A priority patent/ES8300487A1/en
Priority to FR8018284A priority patent/FR2463970A1/en
Priority to FI802640A priority patent/FI69253C/en
Priority to GB8027480A priority patent/GB2061123B/en
Priority to JP11576880A priority patent/JPS5635094A/en
Priority to IT68310/80A priority patent/IT1128981B/en
Publication of SE7907077L publication Critical patent/SE7907077L/en
Publication of SE430127B publication Critical patent/SE430127B/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/002—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in parallel connection
    • B01D24/004—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in parallel connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/04—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being clamped between pervious fixed walls
    • B01D24/06—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being clamped between pervious fixed walls the pervious walls comprising a series of louvres or slots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/04—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being clamped between pervious fixed walls
    • B01D24/08—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being clamped between pervious fixed walls the filtering material being supported by at least two pervious coaxial walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/14—Downward filtration, the container having distribution or collection headers or pervious conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/38—Feed or discharge devices
    • B01D24/40—Feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
    • B01D24/4876—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration in which the filtering elements are moved between filtering operations; particular measures for removing or replacing the filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B01D35/31—Filter housing constructions including arrangements for environmental protection, e.g. pressure resisting features
    • B01D35/32—Filter housing constructions including arrangements for environmental protection, e.g. pressure resisting features against radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/307—Filtering elements contained in an insert body mounted in a filter housing (double casing), e.g. to avoid contamination when removing or replacing the filter element

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Inorganic Chemistry (AREA)
  • Filtration Of Liquid (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Description

15 20 25 50 55 '?vï99'f-O7'7f*7 2 Ändamålet med uppfinningen är att åstadkomma ett filter där utbyte av filter- materialet kan ske på. ett enkelt sätt trots hög strålningenivå.. Strålninge- nivån ka» eöveflflißaliw? “rm/h 1 filtïr. °¥fl§<1°.1*=¿=5e3ä?h§fà- -Falls 12:21?- .finningen anbringas i en reaktorlqlkrets ett kaseettfilter--dårt en filterkas- sett lätt kan insättas och uttagen ur ett filter-hus med enkla fjärrmanövrerade hjälpmedel. Ett filterhus med en öppning och ett lock upptill kan vara av- passat fören eller flera filterkassetter med. ett filtermaterial som upp- fångar i reaktorns kylvatten befintliga föroreningar, främst fasta partiklar. lämpligen är filterhusen cylindriska och placerade vertikalt. Filter-huset 'a'.r invändigt försett med en inåtrilctad fläns eller ansats, som är utformad som ett ventileäte. Denna fläns eller ansats är avsedd att uppbära en eller flera fritt 'hängande filterkassetter med filtermaterial. Minst en filter- kassett fæsrensagmea en utåtriktad mg som a: ttftmsa att tstanae sn- ligga mot husets fläns eller ansats och uppbära en eller flera kassetter. The object of the invention is to provide a filter on which replacement of the filter material can take place. a simple way despite the high radiation level .. The radiation level ka »eöve flfl ißaliw? “Rm / h 1 filter. ° ¥ fl§ <1 ° .1 * = ¿= 5 e3ä? H§fà- -Falls 12:21? - .the invention is placed in a reactor circuit a cassette filter - where a filter cassette can be easily inserted and removed from a filter houses with simple remote-controlled aids. A filter housing with an opening and a lid at the top can be adapted to the bow or several filter cassettes. a filter material that traps existing pollutants in the reactor's cooling water, mainly solid particles. suitably the filter housings are cylindrical and placed vertically. The filter housing 'a'.r is internally provided with an inwardly directed flange or shoulder, which is designed as a valve stem. This flange or shoulder is intended to support one or more free-hanging filter cartridges of filter material. At least one filter cassette has an outwardly directed mg as a means of resting against the flange or shoulder of the housing and carrying one or more cassettes.

Genom det beskrivna utförandet komer kassetthuset att uppdelae i två. skil- da Orent vatten tillföres rummet ovanför kassetten och renat vatten i uppsamias 1 det undre nmet och aterföres till reaktortanxen. Filtret m- fgâr lämpligen i en med reaktorns huvudvattenflöde parallell krets. kdast en mindre del av flödet passerar denna reningskrets. _ _ I ett filterhus kan flera filterkassetter vara placerade. Dessa kan vara serie- eller parallellkopplade. Flera filterhus kan ingå i en filtergrupp.Through the described embodiment, the cassette housing will be divided into two. Separate impure water is fed to the room above the cassette and purified water is collected in the lower chamber and returned to the reactor tank. The filter m- preferably runs in a circuit parallel to the main water flow of the reactor. only a small part of the flow passes this purification circuit. _ _ In a filter housing, several filter cassettes can be placed. These can be connected in series or in parallel. Several filter housings can be part of a filter group.

Dessa. kan vara antingen parallell- eller seriekopplade. I filterkassetterzza kan filtematerialet vara placerat mellan silar påinlopps- och utloppssidaxx.These. can be either parallel or series connected. In the filter cassette, the felt material can be placed between strainers on the inlet and outlet side axles.

Em kassett kan vara utförd med två. konoentriska ringforxnade spaltsilar mellan _ vilka finns en ringfomad filterbädd, genom vilken' vattnet strömmar rsdiellt.Em cassette can be made with two. conoentric annular column sieves between which there is an annular filter bed through which the water flows radially.

Den kan också vara försedd med silar vid sina ändar varvid vattnet komer att axíellt passera genom den mellan silarna hefintliga filterbädden. Filter- bädden kan utgöras av metalltrâdsklipp. Föroreningarna absorberas, i stor nt- sträckning på ytan av filterbäddsmaterialet. En filterkassett kan vara före- nad med filterhusets lock på. sådant sätt att när locket lyftes, kaseetten eller kassetterna lyftes upp tillsanmans med locket. Locket utgör vid an- .bringende av lyftdon och vid transport i ett strålskydd ett utmärkt strål- skydd. mot uppåtriktad strålning. För att åstadkomma en ölming av anliggnings- kraften mellan flänsen eller ansatsen i filterhuset och den samverkan ringen, som uppbär kassetten eller kassetterna, kan ett fjäderpaket vara anordnat mellan locket och filterkassetten. i 10 15 20 25- 35 7997 0717-*7 5 Uppfinningen beskrivas närmare under hänvisning till bifogade figurer. Fig 1 visar ett filter och hur det är placerat i en kärnkzaftstation, fig 2 visar av filterkassetter, fig 3 och 4 visar filter av två. olika utföran- den, fig 5 visar i större skala ett vertikalt snitt och fig 6 ett horisontellt snitt genom en filter-kassett av den typ som visas i fig 5.It can also be provided with strainers at its ends, the water coming to pass axially through the filter bed present between the strainers. The filter bed can consist of metal wire clips. The contaminants are absorbed, to a large extent, on the surface of the filter bed material. A filter cassette can be fitted with the filter housing cover on. such that when the lid is lifted, the cassette or cassettes are lifted together with the lid. The lid provides excellent radiation protection when fitting lifting gear and when transporting in a radiation shield. against upward radiation. In order to bring about an abutment of the abutment force between the flange or shoulder in the filter housing and the interaction which supports the cassette or cassettes, a spring package can be arranged between the cover and the filter cassette. The invention is described in more detail with reference to the accompanying figures. Fig. 1 shows a filter and how it is placed in a core juice station, Fig. 2 shows of filter cassettes, Figs. 3 and 4 show filters of two. different embodiments, Fig. 5 shows on a larger scale a vertical section and Fig. 6 a horizontal section through a filter cassette of the type shown in Fig. 5.

I figurerna betecknar 1 ett av betongväggar 2 och av ett look 5 bildat rum.In the figures, 1 denotes a room formed by concrete walls 2 and by a look 5.

Looket består av en yttre rmgfomaa del ßa och en mre ael 5b. I rummet 1 finns en filterenhet 4. Dennaenhet innehåller ett cylindriskt fiIterhILsIIS med ett löstagbart lock 6, som är fästet vid huset 5 med bultar 9. Filter- huset är anslutet till en reaktors primärlqlvattensystem med en tilledning 7 och en returledxzing 8. Eftersom filterenheten 4 står i förbindelse med reak- torns primärkylvattensystem måste den vara dimensionerad för samma tryck som detta, vanligen ca 70 bar i en kokarreaktor. Det kan också vara lämpligt ett avpeesa den för ångtemperaturen som a: et 3oo°c. I futernueet tva filter- kassetter 10 och 11 anbringade. Övre kassetten 10 är förenad med en inlopps- del 12 för styrning av vattenflödets riktning vid kassettens 10 inlopp. In- loppsdelen 12 är förenad med locket 6. Vid uttagning av kasssttema 10 och 11 avlägsnas betonglocket Eb och anbringas ett strålskydd 13, som visas i fig 2, över öppning 14, en stång 15 sammankopplas med locket 6 varefter hela enheten bestående av locket 6, inloppsdelen 12 och kassetterna 10 'och 11 lyftes upp i strålslqddet 15. Locket 6 bildar ett strålslqvdd mot uppåtriktad strålning.The look consists of an outer rmgfomaa part ßa and a mre ael 5b. In the room 1 there is a filter unit 4. This unit contains a cylindrical filter housing with a detachable cover 6, which is attached to the housing 5 with bolts 9. The filter housing is connected to a reactor's primary water system with a supply 7 and a return line 8. Since the filter unit 4 is connected to the reactor's primary cooling water system, it must be dimensioned for the same pressure as this, usually about 70 bar in a boiler reactor. It may also be appropriate to designate it for the steam temperature as a 30 ° C. In the futernue two filter cassettes 10 and 11 mounted. The upper cassette 10 is connected to an inlet part 12 for controlling the direction of the water flow at the inlet of the cassette 10. The inlet part 12 is connected to the lid 6. When removing the box elements 10 and 11, the concrete lid Eb is removed and a beam guard 13, as shown in Fig. 2, is placed over opening 14, a rod 15 is connected to the lid 6, after which the whole unit consisting of the lid 6 , the inlet part 12 and the cassettes 10 'and 11 are lifted up in the radiation line 15. The lid 6 forms a radiation line against upward radiation.

Detta strålskydd 13 med innehåll avlägsnas, kassettema 10 och 11 'och inlopps- delen 12 separeras varefter kassetterxza 10 och 11 kan ingjutas i betong och deponeras på känt sätt. ' Som bäst visas i fig 3, 4 och 5 har filterhusets 5 övre del större dia- meter än den nedre delen. Vid diameterövsrgângen bildas en ansats 16 som * är utformad med en lutande yta 17 som ett ventilsäte. Övre kassetten 10 är försedd med en ring 20 med en sfärisk yta. 21 avsedd att tätande sam? verka med den lutande ytan 17 på ansatsen 16 vid husets 5 diameteröver- gång. Ytorna, 17 och 21 är i direkt kontakt och tätning erhålles mellan tvâ. metallytor. Med denna ring 20 och kassetten 10 uppdelas filterhuset i två :um 22 och 23. Ksssetterna 10 och 11 uppbäres av denna ring 20 och hänger fritt i filterhuset 5. Genom denna utformning av de samverkande och mot varandra tätande ytorna 17 ooh 21 erhålles automatiskt centrering av filterkassettema 10 och 11 vid insättningen och Jämn säker anliggning mellan ytorna och därmed säker god tätning även utan tätningar-ingar av något slag. Genom att minska den koniske. ytans 17 spetsvinkel kan yttrycket ökas till en för god tätning önskvärd nivå. Tillförselledningen 7 mynnar 15 20 25 55- leevoflv-7 '4 i det. övre rummet 22 och returledningen 8 i det undre rummet 23. Övre kals- eennen lo innehåller en hylee 24 men flänenn 25 een 26. undre kneeetcen 11 innehåller en, hylsa. 27, en fläns 25e. och en ringfomad bottendel 28. Inlopps- delen 12 äreföreedd med flänsar 30 och 31. Kassetterna. 10 och 11 är förenade med flänsarna 26 och 25e och bultarna. 32. Inloppsdelen 12 och kaseetten 10 är förenade med fläneama 25 och 30 och bultarna 33. Inloppsdelen 12 är med flän- sen.31 och bultar 34 förenad med locket 6. Bultarne. 32 och 33 är fastsveteade i flänsarna 25 och 25a. lmder det ett flänearna. 26 och 30 är försedda med öpp- ningen för bnlfekellelne een enar för bulnekerfen. lsnllekellerne emutee ln genom öppningarna. varefter kassetterna vridee så. att 'bultskaften skjuten in i spåren. Hopkopplingsanordningarna. är således av bejonettyp. Hellen locket 6',och 'flänsen 31 finns fjädrar 29 som pressar hela. kassettenheten med ökad kraft mot ytan 17. Filtematerialet 33 är placerat mellan tvâ ringfomiga., koncentriekaeilar 36 resp 37, mellan skivan 38 och ringen 40, resp mellan ringenl41 och 'bottnen 28. Som visas i fig 5 och 6 består eilarna. av ringar 42 *reep 43 och dietaneelement 4.4 och 45. Dessa ringar 42 och 4.3 och distans- element 44 och 45 sammanhållee av bultar 46. Spalttjockleken väljas något mindreän kornstorleken hos filtermaterielet 35. Användes som filtermaterial trådklipp med 0,4 mm längd och 0,4 mm diameter användes lämpligen distens- f element med 0,2 mm tjocklek. vid filten-utförandet enligt tig 3 strömmar vatten från inloppsröret 7 in i rummet 22 och därifrån in i inlcppsdelen 12, rum 47 och ner i epeltenle 48 och 50 mellan rören 24 och 27 och eilarna. 36, radiellt genom filtemessan 55 een ln i een eennnele nnnynnet 51, ner i :met 25 een ut genen netnnlea- ningen a; I filterufförandet enligt fíg' 4 finns i lock S1 och S2 och 'bottnar 53 och 54 eller 5á, 56, 57 een se. l nnrynnene nellen ellenne finne fllnennenenlel 60. Locket 51 och bottnen 53 är förenade med en hylsa. 61 så. att en spalt 62 bilaee nellen denne nylee. 61 een hylsan 24. Leeket 52 een bennnen 54 en fone- nede med hylsan 27 och hylsa. 63 så. att ett ringfomigt utrymme bildas för filter-materialet 60. Hylsan 63 bildar en central axiell kanal 64. Bottnen 65 i filterkassetten 10 är försedd med en rörhylee. 66 och 'locket 52 med en i muïi' 67 så. att kaseettezma. 10 och 11 sanmlankopplas så. ett en förbindelse erhålles mellan rummet 68 i kassetten 10 och kanalen64 genom kaseetten 11. vatten strömmar dels genom silen 55, axiellt genom filtermaesan 60 och silen 56 till rummet 68 och därifrån genom kanalen 64 till rummet 23. En annan del ev vattnet eenannen från :linnet 47 genom spalten 62 ner till keeeennen 11 genom silen 57, filtemassan 60 och silen 58 till runlmet 23.This radiation shield 13 with contents is removed, the cassettes 10 and 11 'and the inlet part 12 are separated, after which the cassette parts 10 and 11 can be cast in concrete and deposited in a known manner. As best shown in Figs. 3, 4 and 5, the upper part of the filter housing 5 has a larger diameter than the lower part. At the diameter upper passage a shoulder 16 is formed which is * formed with an inclined surface 17 as a valve seat. The upper cassette 10 is provided with a ring 20 with a spherical surface. 21 intended to sealing sam? act with the inclined surface 17 on the shoulder 16 at the diameter transition of the housing 5. The surfaces 17 and 21 are in direct contact and a seal is obtained between the two. metal surfaces. With this ring 20 and the cassette 10 the filter housing is divided into two: 22 and 23. The cassettes 10 and 11 are supported by this ring 20 and hang freely in the filter housing 5. Due to this design of the cooperating and sealing surfaces 17 and 21 automatic centering is obtained. of the filter cassettes 10 and 11 at the insertion and Evenly secure abutment between the surfaces and thus safe good sealing even without seals of any kind. By reducing the conical. the apex angle of the surface 17, the surface pressure can be increased to a level desirable for a good seal. The supply line 7 opens into it 20 20 25 55- leevo fl v-7 '4. the upper chamber 22 and the return line 8 in the lower chamber 23. The upper calculus 10 lo contains a hylee 24 but the flange 25 een 26. the lower knee 11 11 contains a sleeve. 27, a flange 25e. and an annular bottom part 28. The inlet part 12 is provided with flanges 30 and 31. The cassettes. 10 and 11 are connected to the flanges 26 and 25e and the bolts. 32. The inlet part 12 and the cassette 10 are connected to the flange arms 25 and 30 and the bolts 33. The inlet part 12 is connected to the flange 31 and bolts 34 to the cover 6. The bolts. 32 and 33 are welded to the flanges 25 and 25a. lmder it a flänearna. 26 and 30 are provided with the opening for bnlfekellelne een enar for bulnekerfen. lsnllekellerne emutee ln through the openings. after which the cassettes turn so. that 'bolt shaft pushed into the grooves. The coupling devices. is thus of bejonett type. Hellen cover 6 ', and' flange 31 there are springs 29 which press whole. the cassette unit with increased force against the surface 17. The felt material 33 is placed between two annular, concentric wedges 36 and 37, respectively, between the disc 38 and the ring 40, respectively between the ring 14 and the bottom 28. As shown in Figs. of rings 42 * reep 43 and dietane elements 4.4 and 45. These rings 42 and 4.3 and spacers 44 and 45 are held together by bolts 46. The gap thickness is chosen slightly less than the grain size of the filter material 35. Used as filter material wire cut with 0.4 mm length and 0 .4 mm diameter, spacer elements with a thickness of 0.2 mm are suitably used. in the felt embodiment according to Fig. 3, water flows from the inlet pipe 7 into the space 22 and from there into the inlet part 12, space 47 and down into the epentle 48 and 50 between the pipes 24 and 27 and the columns. 36, radially through the filter mass 55 one ln i a single nnnynnet 51, ner i: with 25 one ut genen netnnleaningen a; In the filter arrangement according to Fig. 4 there are in caps S1 and S2 and 'bottoms 53 and 54 or 5á, 56, 57 een se. l nnrynnene nellen ellenne finns fllnennenenlel 60. The lid 51 and the bottom 53 are connected to a sleeve. 61 so. that a column 62 bilaee nellen this nylee. 61 een hylsan 24. Leeket 52 een bennnen 54 en fone- neede med hylsan 27 och hylsa. 63 so. that an annular space is formed for the filter material 60. The sleeve 63 forms a central axial channel 64. The bottom 65 of the filter cassette 10 is provided with a tube sleeve. 66 and 'lid 52 with one in muïi' 67 so. to kaseettezma. 10 and 11 are thus connected in this way. a connection is obtained between the space 68 in the cassette 10 and the channel 64 through the cassette 11. water flows partly through the screen 55, axially through the filter mesh 60 and the screen 56 to the room 68 and from there through the channel 64 to the room 23. Another part or the water from: the linen 47 through the slit 62 down to the keeeenn 11 through the strainer 57, the felt mass 60 and the strainer 58 to the runlmet 23.

Claims (10)

1. 'zeefzofzfz-vll' I filtret kan användas filterkassetter med andra former och andra filter- material än som visats i utföringsexemplen. Så. kan t ex filterkassetter byggas som planfilter av olika. slag. PATENTKBAV 1. Kárnreaktorkyllcrets innefattande enwlccets för huvuddelen- av lqylvatten- flödet och en filterlcrets med filter för eeparering av radioaktiva partiklar från realctorlqrlvattnet, k ä n n e t e c k n a d därav, att i filterkretsen ingår ett filterhue (5) med en öppning upptill, som är tillsluten med ett löstagbart lock, och med en inåtriktad och som ett ventileäte utformad. fläns eller ansats (16) i husets (5) övre del, som är avsedd att uppbära minst en fritt hängande filterkassett (10, 11) med partikeluppfângande filtermaterial, att filterkassetten (10) eller en filterkaesetten (10) uppbärande enhet är utformad med en ring, som är utformad att tätande anligga mot den nämnda som ventilsäte utformade fläneen elh' ansatsen (16) och uppbära filterkaseetten (10, 11), samt att filterhusets (5) lock (6) och en filterkassett (10, 11) är permanent sammankopplade med varandra med förbindelseelement, exempelvis bultar (_54), på teaent tätt att vist eriellçtrörelee mellan locket (6) och filterkaseetten (10, 11) är möjlig. 1. 'zeefzofzfz-vll' In the filter, filter cassettes with other shapes and filter materials other than those shown in the embodiments can be used. So. filter cartridges can, for example, be built as flat filters of various types. kind. A nuclear reactor cooling circuit comprising enclosures for the main part of the cooling water flow and a filter circuit with filters for separating radioactive particles from the realctor cooling water, characterized in that the filter circuit includes a filter cap (5) with an opening at the top removable lid, and with an inward-facing and valve-shaped design. flange or shoulder (16) in the upper part of the housing (5), which is intended to support at least one free-hanging filter cassette (10, 11) with particle-catching filter material, that the filter cassette (10) or a filter cassette (10) supporting unit is formed with a ring, which is designed to sealingly abut against the said flange elh 'shoulder (16) designed as a valve seat and to support the filter cassette (10, 11), and that the lid (6) of the filter housing (5) and a filter cassette (10, 11) are permanent connected to each other by connecting elements, for example bolts (_54), in such a way that a certain vertical tube relay between the cover (6) and the filter cassette (10, 11) is possible. 2. Kârnreaktorlqlkrete enligt patentlcrav 1, k ä n n e t e c l: n a a. därav, att fllttrnusetr lock (6) är försett med griper-gen för lyft-ann. 5. 2. A nuclear reactor circuit according to claim 1, characterized in that the filter cover (6) is provided with a gripper gene for lifting. 5. Känznreaktorkyllcrete enligt patentlcrav 1, 1: ä. n n e t e o kn a d därav, att kaseettfiltrets (4) uppbärande ring (20) direkt anligger mot filterhuaets (5) som ventileäte utformade fläns (16) så. att direkt materialkontalct finnes mellan dessa. båda element. The nuclear reactor cooling circuit according to claim 1, 1, characterized in that the support ring (20) of the cassette filter (4) abuts directly against the flange (16) of the filter housing (5) designed as a valve. that direct material contact exists between these. both elements. 4. Käl-nreaktorkylhets enligt patentkrav 1, k ä, n n e te c k n a d därav, att filter-husets (5) som ett ventilsäte utformade fläns (16) är utformad med en inet lutande, lämpligen komer yta (17). The cooling reactor cooler according to claim 1, characterized in that the flange (16) of the filter housing (5) formed as a valve seat is formed with a non-sloping, suitably commercial surface (17). S, Kärnrealctorlsyllcrets enligt patentlmav 4, k ä. n n e t e c k' n a d därav, att den med filterkaseetten förenade uppbärande ringen (20) är utformad med er. tft-risk yta (21) aveeaa ett servern med att. lutande ytan (17) på. filter- nutttr flere (16). S, The core reactor circuit according to claim 4, is characterized in that the support ring (20) connected to the filter cassette is formed with you. tft-risk surface (21) aveeaa a server with that. inclined surface (17) on. filter- nutttr several (16). 6. Kärrarealctorlsylln-ete enligt patenthrav 1, klä n n e t e e k n a d därav, ett flere fllterxrteetter (10, 11) ingår 1 ett filter-nur (5) vilka. filter- keseetter (10,) 11) kan vara parallell- eller seriekopplade. 5 _ 6 7. The cartridge reactor syllable according to claim 1, characterized in that a plurality of filter cartridges (10, 11) are included in a filter cartridge (5) which. filter keseetter (10,) 11) can be connected in parallel or in series. 5 _ 6 7. Käzni-ealctorkïllcrets enligt patentlccav 1, k ä. n n e t e .c k n a d därav, att flera parallell- eller seriekopplaâe filterenheter (4) ingår i en filter- emm- B. Käzni-ealctorkïllcrets according to patent lcav 1, characterized in that several parallel or series-connected filter units (4) are included in a filter em- B. Kärnreaktorkylkrets enligt patentkrav 1, k ä." n n e t e c k n á à därav, att filterkassetterna (10, 11) :Lnnehâlbc två. koncentriska epaltsilar (36, 37) och att mellan dessa finns ett ringfomat rum med en filterbädd (35) genom vilken vattnet strömmar radiellt-á ' Nuclear reactor cooling circuit according to claim 1, characterized in that the filter cassettes (10, 11): contain two concentric epalt screens (36, 37) and that between them there is an annular space with a filter bed (35) through which the water flows radial-on ' 9. Kärnxeaktorlcylkrets enligt patentkrav 1, k ä. n n e t e c k n a. a därav, at: filferkasaefi-.em (1o,11) via sm anam- är farseaaa maa spamm.- (55, 56 , 57, 58) och att i utrymmet mellan dessa finns en filterbädd (60) genom vilken vattnet strömmar axiellt. 9. A nuclear reactor / circuit according to claim 1, characterized in, inter alia, that: between these is a filter bed (60) through which the water flows axially. 10. Kàrmeaktorlqllcrets enligt patentkrav B eller 9, k ä. n n e t e c k n- a d. aärav, att filtemferialec i filtar-nämen (55, 60) utgöra av tráaxlipp.A nuclear reactor circuit according to claim B or 9, characterized in that the filter emphysema in the filter bodies (55, 60) consists of wooden shafts.
SE7907077A 1979-08-24 1979-08-24 NUCLEAR REACTOR REFRIGERATOR INCLUDING FILTER SE430127B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE7907077A SE430127B (en) 1979-08-24 1979-08-24 NUCLEAR REACTOR REFRIGERATOR INCLUDING FILTER
CA000340573A CA1137419A (en) 1979-08-24 1979-11-26 Cartridge filter for separating radioactive contaminants from reactor cooling water
DE3030321A DE3030321C2 (en) 1979-08-24 1980-08-11 Cassette filter for separating radioactive particles from the reactor cooling water of nuclear power plants.
CH6159/80A CH649224A5 (en) 1979-08-24 1980-08-15 FILTERS FOR SEPARATING SOLID POLLUTANTS FROM A LIQUID, IN PARTICULAR SOLID POLLUTANTS FROM THE REACTOR COOLING WATER OF NUCLEAR POWER PLANTS.
ES494398A ES8300487A1 (en) 1979-08-24 1980-08-20 Filter for separating contaminant material from a fluid
FR8018284A FR2463970A1 (en) 1979-08-24 1980-08-21 FILTER FOR SEPARATING SOLID SUBSTANCES FROM A FLUID, IN PARTICULAR THOSE THAT CONTAMINATE COOLING WATER FROM THE REACTOR OF NUCLEAR POWER PLANTS
FI802640A FI69253C (en) 1979-08-24 1980-08-21 FILTER FOR EXPLORATION OF FASHION EQUIPMENT I IN VAETSKA SPCIELLT FAESTA FOERORENINGAR I REAKTORKYLVATTEN I KAERNKRA FTTATIONER
GB8027480A GB2061123B (en) 1979-08-24 1980-08-22 Filter for separating contaminant material from a fluid
JP11576880A JPS5635094A (en) 1979-08-24 1980-08-22 Cartridge type filter
IT68310/80A IT1128981B (en) 1979-08-24 1980-08-22 CARTRIDGE FILTER PARTICULARLY FOR COOLING WATER OF A NUCLEAR REACTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7907077A SE430127B (en) 1979-08-24 1979-08-24 NUCLEAR REACTOR REFRIGERATOR INCLUDING FILTER

Publications (2)

Publication Number Publication Date
SE7907077L SE7907077L (en) 1981-02-25
SE430127B true SE430127B (en) 1983-10-24

Family

ID=20338687

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7907077A SE430127B (en) 1979-08-24 1979-08-24 NUCLEAR REACTOR REFRIGERATOR INCLUDING FILTER

Country Status (10)

Country Link
JP (1) JPS5635094A (en)
CA (1) CA1137419A (en)
CH (1) CH649224A5 (en)
DE (1) DE3030321C2 (en)
ES (1) ES8300487A1 (en)
FI (1) FI69253C (en)
FR (1) FR2463970A1 (en)
GB (1) GB2061123B (en)
IT (1) IT1128981B (en)
SE (1) SE430127B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370238A1 (en) * 1988-10-27 1990-05-30 Abb Atom Ab Method of preparing samples for the analysis of particulate compounds in a liquid
WO1999063548A1 (en) * 1998-06-02 1999-12-09 Abb Atom Ab A cleaning device for a nuclear power plant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582850B1 (en) * 1985-05-29 1987-08-21 Framatome Sa MODULAR DEVICE FOR ULTRAFILTRATION OF THE COOLING LIQUID OF A NUCLEAR REACTOR
GB8710793D0 (en) * 1987-05-07 1987-06-10 British Nuclear Fuels Plc Valve & filter assembly
US5593578A (en) * 1994-11-15 1997-01-14 B & W Nuclear Technologies Filter adapter and disposable filter
US5855777A (en) * 1996-10-31 1999-01-05 Fountainhead Technologies, Inc. Multi-chamber water purification device and method of using the same
US6322697B1 (en) * 1999-07-19 2001-11-27 Donaldson Company, Inc. Oil filter assembly
DE10111064B4 (en) * 2001-03-08 2004-08-19 Seitzschenk Filtersystems Gmbh Filter module, installation kit for a filter module and filter device
DE102010031385B3 (en) * 2010-07-15 2011-10-13 Areva Np Gmbh Filter for cooling water of a primary circuit of a nuclear power plant and method for filtering cooling water
DE102011051902A1 (en) * 2011-07-18 2013-01-24 Haomin Ding Filter, in particular breathing air filter
JP6570936B2 (en) * 2015-09-16 2019-09-04 日立Ｇｅニュークリア・エナジー株式会社 Filter replacement method for filter

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Publication number Priority date Publication date Assignee Title
FR1226660A (en) * 1959-02-26 1960-07-15 Soc Indatom New quick-opening tank intended to contain filter elements
BE791352A (en) * 1971-11-15 1973-03-01 Kernforschung Gmbh Ges Fuer LIQUID FILTRATION DEVICE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370238A1 (en) * 1988-10-27 1990-05-30 Abb Atom Ab Method of preparing samples for the analysis of particulate compounds in a liquid
WO1999063548A1 (en) * 1998-06-02 1999-12-09 Abb Atom Ab A cleaning device for a nuclear power plant

Also Published As

Publication number Publication date
DE3030321C2 (en) 1983-04-07
JPS5635094A (en) 1981-04-07
CH649224A5 (en) 1985-05-15
GB2061123A (en) 1981-05-13
FI69253B (en) 1985-09-30
IT8068310A0 (en) 1980-08-22
ES494398A0 (en) 1982-11-01
FI69253C (en) 1986-01-10
ES8300487A1 (en) 1982-11-01
FR2463970A1 (en) 1981-02-27
DE3030321A1 (en) 1981-03-12
IT1128981B (en) 1986-06-04
CA1137419A (en) 1982-12-14
JPS6333679B2 (en) 1988-07-06
GB2061123B (en) 1983-03-09
SE7907077L (en) 1981-02-25
FI802640A (en) 1981-02-25

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