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Publication number
SE1351270A1
SE1351270A1 SE1351270A SE1351270A SE1351270A1 SE 1351270 A1 SE1351270 A1 SE 1351270A1 SE 1351270 A SE1351270 A SE 1351270A SE 1351270 A SE1351270 A SE 1351270A SE 1351270 A1 SE1351270 A1 SE 1351270A1
Authority
SE
Sweden
Prior art keywords
filter
container
arrangement according
gaseous medium
filter arrangement
Prior art date
Application number
SE1351270A
Other languages
Swedish (sv)
Inventor
Sabina Kristensson
Arto Suoniemi
Yann Le Moigne
Per Olof Nilsson
Original Assignee
Westinghouse Electric Sweden
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 Westinghouse Electric Sweden filed Critical Westinghouse Electric Sweden
Priority to SE1351270A priority Critical patent/SE1351270A1/en
Priority to PCT/SE2014/051243 priority patent/WO2015060776A1/en
Publication of SE1351270A1 publication Critical patent/SE1351270A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407Constructional details of adsorbing systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/39Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
    • B01D29/41Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type mounted transversely on the tube
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002Casings; Housings; Frame constructions
    • B01D46/0005Mounting of filtering elements within casings, housings or frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0039Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B01D46/0041Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2418Honeycomb filters
    • B01D46/2422Mounting of the body within a housing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/58Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/58Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
    • B01D46/60Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel arranged concentrically or coaxially
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407Constructional details of adsorbing systems
    • B01D53/0446Means for feeding or distributing gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/88Handling or mounting catalysts
    • B01D53/885Devices in general for catalytic purification of waste gases
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/02Treating gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/10Noble metals or compounds thereof
    • B01D2255/104Silver
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/50Zeolites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/20Halogens or halogen compounds
    • B01D2257/206Organic halogen compounds
    • B01D2257/2068Iodine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2275/00Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20Shape of filtering material
    • B01D2275/202Disc-shaped filter elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Geometry (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

Föreliggande uppfinning avser ett filterarrangemang som innefattar ett fördelningsrör (12) som mottar det gasformiga mediet från inloppsöppningen (11) och leder det genom en längsgående flödespassage inuti behållaren (10), ett flertal filterenheter (18) som är monterade runt fördelningsröret (12) i olika positioner vilka var och en innefattar ett filtermaterial (23) och passager som mottar det gasformiga mediet från fördelningsröret (12) och ieder det genom filtermaterialet (23) och i en väsentligen tvärgående riktning radiellt utåt i behållaren (10), och utloppspassager (26) som mottar det gasformiga mediet, efter att det passerat genom filterenheterna (18), i ett perifert område av behållaren (10) och ieder det mot utloppsöppningen (13).(Fig. 2)The present invention relates to a filter arrangement comprising a manifold (12) which receives the gaseous medium from the inlet opening (11) and guides it through a longitudinal flow passage inside the container (10), a plurality of filter units (18) mounted around the manifold (12) in different positions each comprising a filter material (23) and passages receiving the gaseous medium from the manifold (12) and passing it through the filter material (23) and in a substantially transverse direction radially outwards in the container (10), and outlet passages (26 ) which receives the gaseous medium, after passing through the filter units (18), in a peripheral area of the container (10) and directs it towards the outlet opening (13). (Fig. 2)

Description

6 filterarrangemang. Alternativt kan inloppsoppningen vara anordnad vid ett byre parti av behallaren och utloppsoppningen vara anordnad vid ett nedre parti av behallaren. I detta fall leds det gasformiga mediet saledes vasentligen nedat i behallaren foru- torn cla den leds radiellt utat genom filterenhetema. Atminstone da filterenheterna innefattar last filtermaterial bor filterutrymmena ha en horisontell strackning. Dessutom bar gasens flodesriktning genom filtermaterialet vara neclatriktad och fordelningsroret ha en vertikal strackning. I dessa fall är det lampligt att behallarens inlopp och utlopp är anordnade I ovan namnda positioner pa behallaren. 6 filter arrangement. Alternatively, the inlet opening may be arranged at an upper part of the container and the outlet opening may be arranged at a lower part of the container. In this case, the gaseous medium is thus essentially led down into the container. tower cla it is led radially outwards through the filter units. At least since the filter units comprise loads of filter material, the filter spaces should have a horizontal alignment. In addition, the flow direction of the gas through the filter material should be neclat-oriented and the distribution pipe should have a vertical stretch. In these cases, it is appropriate that the inlet and outlet of the container are arranged in the above-mentioned positions on the container.

KORT BESKRIVNING AV RITNINGARNA 1 det foljande beskrivs faredragna utfaringsformer av uppfin- ningen med hanvisning till bifogade ritningar, pa vilka: Fig. 1visar ett filterarrangemang enligt foreliggande uppfin- fling i kombination med ett kant filterarrangemang, Fig. 2visa en langsgaende snitt av filterarrangemanget I Fig 1, Fig. 3visar ett snitt i ett plan A-A av filterarrangemanget Fig 2, Fig. 4visar ett filterarrangemang enligt en alternativ utfb- ringsform och Fig. visar ett snitt I ett plan B-B av filterarrangemanget Fig 4. BRIEF DESCRIPTION OF THE DRAWINGS In the following, dangerous embodiments of the invention are described. with reference to the accompanying drawings, in which: Fig. 1 shows a filter arrangement according to the present invention fling in combination with an edge filter arrangement, Fig. 2 shows a longitudinal section of the filter arrangement I Fig. 1, Fig. 3 shows a section in a plane A-A of the filter arrangement Fig. 2, Fig. 4 shows a filter arrangement according to an alternative embodiment. ring shape and Fig. Shows a section I a plane B-B of the filter arrangement Fig. 4.

DETALJERADBESKRIVNINGAVFOREDRAGNA UTFORINGSFORMER AV UPPFINN1NGEN Fig. 1 visar ett filterarrangemang 1 enligt foreliggande uppfinning. Filterarrangemanget I utger I detta fall ett kompletterande filter till ett ordinarie filterarrangemang 2. Det ordinarie filterar- rangemanget 2 är i detta fall ett vatfilter. Det ordinarie filterar- rangemanget 2 innefattar en behallare 3. Behallaren 3 har cirku- 7 tar form i ett tvargaende plan. En schematiskt visad tryckavlastningsledning 4 stracker sig fran en reaktorinneslutning 5 till en inloppsoppning i behallaren 3 hos det ordinarie filterarrangemanget 2. Ledningen 4 innefattar en eller flera ventiler 6 och/eller ett eller flera sprangbleck som oppnar vid det tillfalle cla filtrerad tryckavlastning ska ske. Det ordinarie filterarrangemanget 2 innefattar en utloppsoppning 7 som definieras av ett utloppsror 8 som är anordnat vid ett ovre parti av behallaren 3. Det kompletterande filterarrangemang 1 her i detta fail applice- rats pa en Ovre yta av behallaren 3 hos det ordinarie filterar- rangemanget med hjalp av en benkonstruktion 9. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION Fig. 1 shows a filter arrangement 1 according to the present invention. In this case, the filter arrangement I provides a complementary filter to an ordinary filter arrangement 2. The ordinary filter the arrangement 2 is in this case a water filter. The ordinary filter arrangement 2 comprises a container 3. The container 3 has circulating 7 takes shape in a transverse plane. A schematically shown pressure relief line 4 extends from a reactor enclosure 5 to an inlet opening in the container 3 of the ordinary filter arrangement 2. The line 4 comprises one or more valves 6 and / or one or more springboards that open at that time cla filtered pressure relief shall take place. The ordinary filter arrangement 2 comprises an outlet opening 7 which is defined by an outlet pipe 8 which is arranged at an upper part of the container 3. The complementary filter arrangement 1 here in this fail application placed on an upper surface of the container 3 of the ordinary filter the arrangement with the aid of a bone structure 9.

Det kompletterande filterarrangemanget 1 innefattar en behallare 10 som är tillverkad av ett material som kan vara mot- standskraftigt mot tryck och korrosion. Behallaren 10 har en air- kular tvarsnittsform I ett tvargaende plan och är i ovrigt utformad utan skarpa kanter sá att den her kapacitet att motsta hoga invandiga tryck. Det kompletterande filterarrangemanget 1 innefattar, vid en nedre ande, ett fordelningsror 12 med en inloppsopp- ning 11 for mottagning av gas fran det ordinarie filterarrange- manget 2. Det kompletterande filterarrangemangets fordelningsror 12 har monterats samman, med det ordinarie filterarrangemangets utloppsror 8 med hjalp av en lamplig forbindning sa att gasen i detta fall kan Overforas direkt fran det ordinarie filterar- rangemangets utloppsOppning 7 till det kompletterande filterar- rangemangets inloppsoppning 11. Mellan utloppsoppningen 7 och inloppsOppningen 11 kan komponenter sasom sprangbleck och strypflans vara placerade. Det kompletterande filterarrangemanget 1 innefattar en utloppsoppning 13 vid en ovre ande som formas av ett utloppsror 14. Efter utloppsrOr kan komponenter sasom sprangbleck vara placerade. Efter utloppsraret leds den renade gasen vidare for att pa lampligt satt, t.ex. via en skorsten, slappas ut till omgivningen. The complementary filter arrangement 1 comprises a container 10 which is made of a material which can be resistant to pressure and corrosion. The container 10 has an air- spheres cross-sectional shape In a transverse plane and is otherwise designed without sharp edges so that it has the capacity to withstand high internal pressures. The complementary filter arrangement 1 comprises, at a lower end, a distribution pipe 12 with an inlet opening. 11 for receiving gas from the ordinary filter arrangement The distribution pipe 12 of the supplementary filter arrangement has been assembled, with the outlet pipe 8 of the ordinary filter arrangement by means of a suitable connection so that in this case the gas can be transferred directly from the ordinary filter the outlet opening 7 of the arrangement to the supplementary filter The inlet opening 11 of the arrangement is arranged between the outlet opening 7 and the inlet opening 11, components such as spring plate and throttle flange. The complementary filter arrangement 1 comprises an outlet opening 13 at an upper spirit which is formed by an outlet pipe 14. After outlet pipes, components such as spring plates can be placed. After the outlet pipe, the purified gas is passed on in an appropriate manner, e.g. via a chimney, relaxed to the surroundings.

Fig. 2 visar det kompletterande filterarrangemanget 1 mer i de- talj. Fordelningsroret 12 her en rak strackning i en vertikal rikt- 8 ning i en central position inuti behallaren 10. Fardelningsroret 12 har en strackning fran en nedre ande som definieras av inloppsoppningen 11 till en ovre ande som är anordnad ett litet stycke nedanfor behallarens 10 byre andparti. FordelningsrOrets 12 är vid den Ovre anden forsluten med ett stoppelement 15. Fig. 2 shows the complementary filter arrangement 1 more in detail. talj. The distribution tube 12 here is a straight extension in a vertical direction. 8 in a central position inside the container 10. The manifold 12 has a stretch from a lower end defined by the inlet opening 11 to an upper end which is arranged a short distance below the upper end portion of the container 10. Distribution rOrets 12 is closed at the upper end by a stop element 15.

Fordelningsroret 12 är forsett med oppningar 16 som är anordnade pa olika hojdnivaer. I detta fall är Oppningarna 16 anordnade pa fern olika hojdnivaer hos fordelningsroret 12. The distribution tube 12 is provided with openings 16 which are arranged at different height levels. In this case, the openings 16 are arranged at four different height levels of the distribution tube 12.

En ringformad filterenhet 18 a r anordnad i anslutning till var och en av de respektive oppningarna 16. I detta fall är fern ringformade filterenheter 18 anordnade runt fordelningsroret 12 i anslutning till de radiella oppningarna 16. De ringformade enheterna 18 innefattar ett centralt genomgaende hal sa att de kan fas- tas runt fordelningsroret 12. De ringforrnade filterenheterna 18 anordnas runt fordelningsrriret 12 vertikalt ovanfor varandra form av en stapel. De ringformade filterenheterna 18 innefattar invandigt anordnade radiella oppningar 19 som är anpassade att anordnas i ett motsvarande hojdlage som fordelningsrorets 12 radiella oppningar 16. Filterenheternas 18 radiella oppningar 19 leder in ett gasflode till ett invandigt utrymme 20 inuti filterenheterna 18 vilket definieras av ett ovre vaggelement 21 och ett nedre filterutrymme 22 som äí fyllt med ett filtermaterial 23 av lost anordnade partiklar/kuloripellets. Det losa filtermaterialet ar i detta fall kulformade zeoliter (aluminiumsilikat). Zeoliterna är belagda med silver. An annular filter unit 18 is arranged in connection with each and every one one of the respective openings 16. In this case, four annular filter units 18 are arranged around the distribution tube 12 in connection with the radial openings 16. The annular units 18 comprise a central through-hole so that they can be is taken around the distribution tube 12. The annular filter units 18 arranged around the distribution tube 12 vertically above each other in the form of a stack. The annular filter units 18 comprise internally arranged radial openings 19 which are adapted to be arranged in a corresponding height layer as the distribution tube 12 radial openings 16. Radial openings of the filter units 18 19 leads a gas flow to an internal space 20 inside the filter units 18 which is defined by an upper rocker element 21 and a lower filter space 22 which is filled with a filter material 23 of loosely arranged particles / color pellets. The loose filter material is in this case spherical zeolites (aluminosilicate). The Zeolites are plated with silver.

Filterarrangemanget 1 innefattar utvandiga utrymmen 25 som ar belagna mellan tva angransande filterenheter 18 dar gasen mottas efter att den passerat igenom filterenheterna 18. Det ut- vandiga utrymmet 25 definieras av filterutrym met 22 hos den filterenhet 18 som gasen passerat igenom och en vaggyta 21 hos en angransande filterenhet 18. Detta galler for alla utvandiga utrymmen 25 forutom det sonn är belaget tangs ner dar det defi- nieras nedat av en invandig nedre yta hos behaltaren 10. Gasen leds radiellt utat i de utvandiga utrymmena 25 tills den vasentli- 9 gen kommer kontakt med en invandig sidoyta hos behallaren 10. The filter arrangement 1 comprises external spaces 25 which are located between two adjacent filter units 18 where the gas received after passing through the filter units 18. It is The aqueous space 25 is defined by the filter space 22 of the filter unit 18 through which the gas has passed and a cradle surface 21 of an adjacent filter unit 18. This grid for all external spaces 25 except the sun is coated tangs down where it defines nieras down by an internal lower surface of the container 10. The gas guided radially outwards in the outer spaces 25 until the vascular 9 gen comes into contact with an inner side surface of the container 10.

Fig. 3 visar ett snitt I ett tvargaende plan A-A i Fig. 2. En av de ringformade filterenheterna 18 ses har fran ovan i ett monterat tillstand runt fordelningsroret 12. I detta fall 5r den ringformade filterenheten 18 tillverkat av atta sammanfogade filterkomponenter 24 i form av segment som var och en tacker ett vinkelomrade av 45° runt fordelningsroret 12. Det ovre vaggelementet 21 hos de respektive filtersegmenten 24 Lagar en plan vagg som lutar nedat fran en radiellt invandig position till ett utvandigt perifert kantparti 24a hos de respektive filtersegmenten 24. Behallaren 10 har en cirkular tv5rsnittsform medan filterkomponenternas perifera kantpartier 24a är raka. Det bildas darmed en gaspas- sage 26 i en position radiellt utvandig om var och en av de re- spektive filtersegmenten 24. Fig. 3 shows a section in a transverse plane A-A in Fig. 2. One of the annular filter units 18 are seen from above in a mounted condition around the manifold 12. In this case, the annular filter unit 18 made of eight joined filter components 24 in the form of segments each enclosing an angular area of 45 ° around the manifold 12. The upper cradle member 21 of the respective filter segments 24 Fix a flat cradle that slopes downward from a radially inner position to an outer peripheral edge portion 24a of the respective filter segments 24. The container 10 has a circular cross-sectional shape while the peripheral edge portions 24a of the filter components are straight. This creates a gas passage. 26 in a position radially outward about each of the specific filter segments 24.

Vid tilIfällen (la filtrerad tryckavlastning ska ske strommar gas genom tryckavlastningsledningen 4. Gasen i reaktorinneslut- ningen 5 leds darmed, via ledningen 4, till det ordinarie filterar- rangemanget 2. Efter att gasen passerat igenom det ordinarie filterarrangemanget 2 leds den till det kompletterande filterarrangemanget 1. Gasen som strommar in i det kompletterande filterarrangemangets leds, via fordelningsroret 12, I en vertikal riktning I behallaren 10. Gasen leds v5sentligen fikformig fran fordelningsroret 12, via de radiella utioppsoppningarna 16, till de respektive filterenheterna 18. Gasen mottas infedningsvis filterenheternas 18 invandiga utrymmen 20. Da gasen leds radiellt utat i de invandiga utrymmen 20 leder de lutande vaggele- menten 21 gasen nedat mot filterutrymmet 22 med filtermateri- alet 23. Gasen leds darvid genom filtermateriaiet 23 sa att den kommer i kontakt med zeoliternas silverdopning. Darmed sker en kemisk reaktion vid vilken jod, t.ex. i form av metyljodid fangas upp renas. In the event of a filtered pressure relief, gas flows through the pressure relief line 4. The gas in the reactor containment 5 is thus led, via line 4, to the ordinary filter the arrangement 2. After the gas has passed through the ordinary filter arrangement 2, it is led to the supplementary filter arrangement 1. The gas flowing into the supplementary filter arrangement is led, via the distribution pipe 12, in a vertical direction In the container 10. The gas is led substantially fig-shaped from the distribution tube 12, via the radial outlet openings 16, to the respective filter units 18. The gas is received in an inhaled manner from the inner spaces 20 of the filter units 18. the gas 21 downwards towards the filter space 22 with the filter material alet 23. The gas is thereby passed through the filter material 23 so that it comes into contact with the silver doping of the zeolites. Thereby a chemical reaction takes place in which iodine, e.g. in the form of methyl iodide is captured purified.

Efter att gasen strOmmat igenom filtermaterialet 23 mottas den i det utvandiga utrymmet 25 som är belaget mellan tva filterenheter 18. Gasen leds radiellt utat i det utvandiga utrymme 25 tills den kommer i kontakt med en invandig yta hos behallaren 10. Gasen leds darefter uppat via en av utloppspassagerna 26 dar den successivt blandas med gas fran de vertikalt ovanfor belagna filterenhetema 18. Gasen leds vidare upp langs behallarens invandiga yta och darefter radiellt inat till en position vasentligen rakt ovanfOr fordelningsroret 12 forsiutna ande. Gasen leds darefter ut via utloppsroret 14 och utloppsoppningen 13. After the gas has flowed through the filter material 23, it is received in the outer space 25 which is occupied between two filter units 18. The gas is led radially outwards in the outer space 25 until it comes into contact with an inner surface of the container. 10. The gas is then led upwards via one of the outlet passages 26 where it is successively mixed with gas from the filter units 18 located vertically above. The gas is passed further up along the inner surface of the container and then radially inwards to a position substantially directly above the distribution pipe 12. The gas is then led out via the outlet pipe 14 and the outlet opening 13.

Gasen som lamnar det kompletterande filterarrangemanget 1 är saledes renad. The gas leaving the complementary filter arrangement 1 is thus purified.

Fig. 4 visar en alternativ utformning av det uppfinningsenliga Iii- terarrangemanget 1. Filterarrangemanget 1 innefattar i detta fall, vid en byre ande, ett fordelningsror 12 med en inloppsoppning 11 for mottagning av en gas som ska renas. Filterarrangemanget 1 innefattar en utloppsoppning 13 vid en nedre ande som definieras av ett utloppsror 14. Fordelningsraret 12 har en vertikal strackning i en central position inuti behallaren 10. For- delningsrOret 12 har en strackning fran en ovre ande som definieras av inloppsoppningen 11 till en nedre ande som är anordnad ett litet stycke ovanfor ett nedre andparti hos behallaren 10. FOrdelningsrorets 12 nedre ande är forsluten med ett stoppele- ment 15. FOrdelningsroret 12 är forsett med appningar 16 som är anordnade pa forbestamda hojdnivaer. Fig. 4 shows an alternative embodiment of the invention according to the invention. the filter arrangement 1. The filter arrangement 1 comprises in this case, at a barrel, a manifold 12 with an inlet port 11 for receiving a gas to be purified. The filter arrangement 1 comprises an outlet opening 13 at a lower end defined by an outlet pipe 14. The distribution pipe 12 has a vertical stretching in a central position inside the container 10. For- the dividing tube 12 has a stretch from an upper end defined by the inlet opening 11 to a lower end which is arranged a short distance above a lower end portion of the container 10. The lower end of the dividing tube 12 is closed with a stopper. ment 15. The distribution tube 12 is provided with openings 16 which are arranged at predetermined height levels.

Ett flertal ringformade filterenheter 18 är anordnad runt fordelningsroret 12 i anslutning till oppningarna 16. De ringformade filterenheterna 18 innefattar ett centrait genomgaende hl sa att de kan anordnas runt fordelningsraret 12 varefter de fors till ett bestamt monteringslage pa fordelningsroret 12. De ringformade filterenheterna 18 kan darmed anordnas vertikalt ovan varandra i form av en stapel. Filterenheterna 18 innefattar invandigt an- ordnade radiella oppningar 19 i anslutning till fordelningsrorets 12 radiella oppningar 16. Filterenheternas 18 innefattar ett in- 11 vandigt utrymme 20 som definieras av ett ovre vaggelement 21 och ett nedre filterutrymme 22 som är fyllt med ett lost filter-material 23. Vaggelementet 21 lutar nedat fran en radiellt invandig position till ett utvandig perifert kantparti 18a hos filteren- heten 18. A plurality of annular filter units 18 are arranged around the distribution tube 12 in connection with the openings 16. The annular filter the filter units 18 comprise a centrait continuous hl so that they can be arranged around the distribution tube 12, after which they are carried to a specific mounting layer on the distribution tube 12. The annular filter units 18 can thus be arranged vertically above each other in the form of a stack. The filter units 18 comprise internal arranged radial openings 19 in connection with the distribution tube 12 radial openings 16. The filter units 18 comprise an inlet 11 aqueous space 20 defined by an upper rocker element 21 and a lower filter space 22 which is filled with a lost filter material 23. The rocker element 21 slopes downward from a radially inner position to an outer peripheral edge portion 18a of the filter. called 18.

Fig. 5 visar ett snitt i ett tvargaende plan B-B i Fig. 4. En av filterenheterna 18 visas har fran ovan ett monterat tillstand runt fordelningsroret 12. 1 detta fall är filterenheten 18 tillverkat som av en enhetlig cirkular filterkomponent. Bade behallaren 10 och de filterenhetema 18 her i detta fall en cirkular tvarsnittsform. Filterenheternas 18 perifera kantparti 18a har emellertid en mindre radie an behallaren 10 pa motsvarande niva sa att det bildas en utloppspassage 26 radiellt utvandig var och en av de ringformade enheterna 18. Fig. 5 shows a section in a transverse plane B-B in Fig. 4. One of the filter units 18 is shown has from above a mounted condition around the distribution pipe 12. In this case the filter unit 18 is manufactured as of a uniform circular filter component. Bath container 10 and the filter units 18 here in this case a circular cross-sectional shape. However, the peripheral edge portion 18a of the filter units 18 has a smaller radius than the container 10 at the corresponding level so that an outlet passage 26 is formed radially outside each of the annular units 18.

Under drift leds gas in i filterarrangemanget 1, via inloppsoppningen 11. Gasen leds vertikalt nedat i fordelningsroret 12. Oppningarna 16 leder ut gasen vasentligen likformig fran fordel- ningsroret 12 till filterenheterna 18. Darmed mottar alla filteren- heter 18, via sina inloppsoppningar 19, en vasentligen lika stor mangd gas. Gasen leds in i de filterenhetemas 18 invandiga utrymmen 20. Det nedat lutande vaggelementet 21 avlankar gasen nedat mot det nedre filterutrymmet 22 cla gasen leds radiellt utat 25 1 det invandiga utrymmet 20. Gasen leds darefter nedat genom filtermaterialet 23. Darmed sker en kemisk reaktion vid vilken jod sasom metyljodid fangas upp ur gasen. Gasen som laminar filtermaterialet 23 är darmed renad. During operation, gas is led into the filter arrangement 1, via the inlet opening 11. The gas is led vertically downwards into the distribution pipe 12. The openings 16 discharge the gas substantially uniformly from the distribution pipe. 12 to the filter units 18. Thus, all the filter units receive 18, via its inlet openings 19, a substantially equal amount of gas. The gas is led into the inner spaces 20 of the filter units 18. The downwardly sloping rocker element 21 elongates the gas downwards towards the lower filter space 22. The gas is led radially outwards into the inner space 20. The gas is then led downwards through the filter material 23. which iodine as methyl iodide is captured from the gas. The gas laminating the filter material 23 is thus purified.

Efter att gasen fleidat igenom filtermaterialet 23 mottas den i ett utvandigt utrymme 25 som är beiaget under filterenheten 18. Det utvandiga utrymmet 25 definieras nedat av en vaggyta 21 hos en nedanfor belagen filterenhet 18. For den fangs ner anordnade filterenheten 18 definieras det utvandiga utrymmet 25 dock av en invandig nedre yta hos behallaren 10. Gasen leds radiellt utat i det utvandiga utrymmet 25 tills den vasentligen kommer 12 kontakt med en invandig yta has behallaren 10. Gasen leds därefter nedat genom flodespassagen 26 dar den successivt blandas med gas frail de vertikalt nedanfOr belagna filterenhetema 18. DA den nedat flodande gasen narmar sig behallarens nedre niva leds den radiellt mat till en position som är belagen nedan- for stoppelementet 15 fdr fordelningsrorets 12 invandiga ande. Gasen leds darefter ut via utloppsroret 14 och utloppsoppningen 13. After the gas has flowed through the filter material 23, it is received in one external space 25 which is occupied under the filter unit 18. The external space 25 is defined at the bottom by a cradle surface 21 of a filter unit 18 located below. For the filter unit 18 arranged below the catch space, however, the external space 25 is defined. of an inner lower surface of the container 10. The gas is guided radially out in the outer space 25 until it essentially arrives 12 contact with an internal surface has the container 10. The gas is then led down through the river passage 26 where it is successively mixed with gas frail the vertically below the coated filter units 18. When the downward flowing gas approaches the lower of the container level, the radial food is guided to a position covered below for the stop element 15 before the inner spirit of the distribution tube 12. The gas is then discharged via the outlet pipe 14 and the outlet opening 13.

Foreliggande uppfinning är inte pa nagot satt begransad till ovan beskrivna utforingsformer pa ritningarna utan kan modifieras fritt inom patentkravens ramar. Filterarrangemanget är I forsta hand anpassad for att rena gaser Iran metyliodid som strommar ut fran en reaktorinneslutning. Filterarrangemanget kan anvandas separat eller i kombination med andra typer av filterarrange- mang Det kan aven forses med eft vasentligen godtyckligt filtermaterial. 13 The present invention is in no way limited to the above described embodiments in the drawings but can be freely modified within the scope of the claims. The filter arrangement is primarily adapted to purify Iranian methyl iodide gases flowing out of a reactor enclosure. The filter arrangement can be used separately or in combination with other types of filter arrangements mang It can also be provided with essentially arbitrary filter material. 13

Claims (15)

Patentkrav 1. Filterarrangemang far filtrering av ett gasformigt medium, varvid filterarrangemangen innefattar en behallare (10), en in- loppsoppning (11) dar det gasformiga mediet leds in i behallaren (10), ett filtermaterial (23) som är anpassat att genomstrommas av det gasformiga mediet inuti behallaren (10), och en utloppsoppning (13) dar det gasformiga mediet leds ut fran behallaren (10), kannetecknat av att filterarrangemanget innefattar — ett fordelningsror (12) som mottar det gasformiga mediet fran inloppsappningen (11) och leder det genom en langsgaende filo- despassage inuti behallaren (10),The filter arrangement comprises filtering a gaseous medium, the filter arrangements comprising a container (10), an inlet opening (11) where the gaseous medium is led into the container (10), a filter material (23) adapted to be passed through the gaseous medium inside the container (10), and an outlet opening (13) where the gaseous medium is led out of the container (10), characterized in that the filter arrangement comprises - a distribution pipe (12) which receives the gaseous medium from the inlet opening (11) and leads it through a longitudinal phyllo passage inside the container (10), 1. ett flertal filterenheter (18) som är monterade runt fordelnings- roret (12) i olika langsgaende positioner vilka var och en innefat- tar ett filtermaterial (23) och passager som mottar det gasfor- miga mediet fran fordelningsraret (12) och leder det genom filtermaterialet (23) och i en vasentligen tvargaende riktning radi- ellt utat i behallaren (10) och, 2. utloppspassager (26) som mottar det gasformiga mediet, efter att det passerat genom filterenheterna (18), i ett perifert omrade av behallaren (10) och leder det mot utloppsoppningen (13).A plurality of filter units (18) mounted around the manifold (12) in different longitudinal positions each comprising a filter material (23) and passages receiving the gaseous medium from the manifold (12) and conducting it through the filter material (23) and in a substantially transverse direction radially outwardly in the container (10) and, 2. outlet passages (26) which receive the gaseous medium, after passing through the filter units (18), in a peripheral area of the container (10) and leads it towards the outlet opening (13). 2. Filterarrangemang enligt krav 1, kannetecknat av att fordelningsroret (12) innefattar radiella oppningar (16) som leder ut de gasformiga mediet till de respektive filterenheterna (18).Filter arrangement according to claim 1, characterized in that the distribution tube (12) comprises radial openings (16) which discharge the gaseous medium to the respective filter units (18). 3. Filterarrangemang enligt krav 2, kannetecknat av att namnda oppningar (16) är utformade sa att de fordelar gasflodet inuti fordelningsroret (12) sa att alla filterenheter (18) mottar ett vä sentligen likformigt flade av det gasformiga mediet.Filter arrangement according to claim 2, characterized in that said openings (16) are designed so as to distribute the gas flow inside the distribution pipe (12) so that all filter units (18) receive a substantially uniform surface of the gaseous medium. 4. Filterarrangemang enligt krav 2 eller 3, kannetecknat av att fardelningsroret (12) har en strackning mellan en forsta ande som innefattar inloppsappningen (11) och en motsatt ande som är forsluten med ett stoppelement (15). 14Filter arrangement according to claim 2 or 3, characterized in that the splitting tube (12) has a tension between a first spirit comprising the inlet opening (11) and an opposite spirit which is closed with a stop element (15). 14 5. Filterarrangemang enligt nagot av foregaende krav, kannetecknat av att var och en av filterenheterna (18) innefattar en invandigt perifer oppning (19) som leder det gasformiga mediet fran fordelningsroret (12) till ett invandigt utrymme (20) som de- finieras av ett vaggelement (21) och ett filterutrymme (22) som innefattar filtermaterialet (23).Filter arrangement according to any one of the preceding claims, characterized in that each of the filter units (18) comprises an inner peripheral opening (19) which leads the gaseous medium from the distribution tube (12) to an inner space (20) defined by a cradle element (21) and a filter space (22) comprising the filter material (23). 6. Filterarrangemang enligt krav 5, kannetecknat av att narrinda vaggelement (21) har en lutning sa att det invandiga utrymmet (20) erhaller en avtagande volym i en riktning radiellt utat i be- hallaren (10).Filter arrangement according to claim 5, characterized in that the narrative rocker element (21) has a slope such that the inner space (20) obtains a decreasing volume in a direction radially outward in the container (10). 7. Filterarrangemang enligt nagot av foregaende krav, kannetecknat av att filtermaterialet (23) bestar av losa partiklar.Filter arrangement according to one of the preceding claims, characterized in that the filter material (23) consists of loose particles. 8. Filterarrangemang enligt krav 7, kannetecknat av filter- materialet (23) bestar av zeoliter som är belagda med silver.Filter arrangement according to claim 7, characterized in that the filter material (23) consists of zeolites which are coated with silver. 9. Filterarrangemang enligt nagot av foregaende krav, kanne- tecknat av att det innefattar ett utvandigt utrymme (25) dar det gasformiga mediet mottas efter att det passerat genom filtermaterialet (23) has en filterenhet (18), varvid det utvandiga utrymmet (25) definieras av filterutrymmet (22) hos namnda filterenhet (18) och ett vaggelement (21) hos en angransande filter- enhet (18).Filter arrangement according to any one of the preceding claims, characterized in that it comprises an outer space (25) where the gaseous medium is received after it has passed through the filter material (23) having a filter unit (18), the outer space (25) is defined by the filter space (22) of said filter unit (18) and a cradle element (21) of an adjacent filter unit (18). 10. Filterarrangemang enligt nagot av foregaende krav, kannetecknat av aft behallaren (10) har en rund tvarsnittsform i ett tvargaende plan och att filterenheterna (18) har en perifer kant- yta som atminstone delvis är belagen pa ett avstand fran behallarens (10) invandiga yta sa att flodespassager (26) bildas radiellt utvandigt am filterenheterna (18) vilket utgor utloppspassager (26) som leder det gasformiga mediet langs behallarens (10) invandiga yta i riktning mot utloppsoppningen (13).Filter arrangement according to any one of the preceding claims, characterized in that the container (10) has a round cross-sectional shape in a transverse plane and that the filter units (18) have a peripheral edge surface which is at least partially covered at a distance from the interior of the container (10). surface so that river passages (26) are formed radially outside the filter units (18) which constitute outlet passages (26) which guide the gaseous medium along the inner surface of the container (10) towards the outlet opening (13). 11. Filterarrangemang enligt krav 10, kannetecknat av att filterenheterna (18) har en utvandigt perifer kantyta (18a) som är cirkelformad.Filter arrangement according to claim 10, characterized in that the filter units (18) have an outer peripheral edge surface (18a) which is circular. 12. Filterarrangemang enligt krav 10 eller 11, kannetecknat av att filterenheterna (18) har en perifer kantyta som innefattar ett flertal raka partier (24a) som bildar en vinkel med varandra.Filter arrangement according to claim 10 or 11, characterized in that the filter units (18) have a peripheral edge surface which comprises a plurality of straight portions (24a) which form an angle with each other. 13. Filterarrangemang enligt krav 11 eller 12, kannetecknat av att atminstone en av filterenheterna (18) är uppbyggd av ett fler- tal filterkomponenter (24) som utgor segment av den ringformade filterenheten (18).Filter arrangement according to claim 11 or 12, characterized in that at least one of the filter units (18) is built up of a plurality of filter components (24) which form segments of the annular filter unit (18). 14. Filterarrangemang enligt nagot av foregaende krav, kanne- tecknat av att inloppsoppningen (11) ar anordnad vid ett nedre parti av behallaren (10) och att utloppsOppningen (13) är anordnad vid ett Ovre parti av behallaren (10).Filter arrangement according to one of the preceding claims, characterized in that the inlet opening (11) is arranged at a lower part of the container (10) and that the outlet opening (13) is arranged at an upper part of the container (10). 15. Filterarrangemang enligt nagot av foregaende krav 1 till 13, kannetecknat av att inloppsoppningen (11) är anordnad vid ett ovre parti av behallaren (10) och att utloppsOppningen (13) ãr anordnad vid ett nedre parti av behallaren (10). ///z/z/z/z/z 13 2/Filter arrangement according to any one of the preceding claims 1 to 13, characterized in that the inlet opening (11) is arranged at an upper part of the container (10) and that the outlet opening (13) is arranged at a lower part of the container (10). /// z / z / z / z / z 13 2 /
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IT202000028412A1 (en) * 2020-11-25 2022-05-25 Ufi Innovation Ct Srl FILTER GROUP
IT202000028421A1 (en) * 2020-11-25 2022-05-25 Ufi Innovation Ct Srl FILTER GROUP
DE102022124690A1 (en) * 2022-09-26 2024-03-28 Fritzmeier Umwelttechnik Gmbh & Co. Kg Gas filter

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