DK176658B1 - Rotary switch for inlet on filter - Google Patents
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- DK176658B1 DK176658B1 DK200601284A DKPA200601284A DK176658B1 DK 176658 B1 DK176658 B1 DK 176658B1 DK 200601284 A DK200601284 A DK 200601284A DK PA200601284 A DKPA200601284 A DK PA200601284A DK 176658 B1 DK176658 B1 DK 176658B1
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DK 176658 B1DK 176658 B1
ROTATIONSBRYDER TIL INDLØB PÅ FILTERROTATOR SWITCH FOR INPUT ON FILTER
Opfindelsen angår et filter omfattende et filterhus, hvilket filter er forsynet 5 med et indløb en rotationsbryder og en cylindrisk inderdel, der omkranser filterelementerne i det mindste over en del af filterelementernes længde, hvilket indløb er indrettet til at lede en gasstrøm ind i filteret, hvorved gasstrømmen ledes rundt i et mellemrum, der opstår mellem filterhus og inderdel, idet indløbet er indrettet til indføring af en partikelholdig gasstrøm til filteret, hvil-10 ken gasstrøm ledes gennem filterelementerne og udledes gennem et renga-sudløb.The invention relates to a filter comprising a filter housing, which filter is provided with an inlet a rotary switch and a cylindrical inner part, which surrounds the filter elements at least over a part of the length of the filter elements, which inlet is arranged to direct a gas flow into the filter, the gas stream is passed around a gap which occurs between the filter housing and the inner part, the inlet being arranged to introduce a particulate gas stream to the filter, which gas stream is passed through the filter elements and discharged through a clean flow.
Sådanne filtre er almindeligt kendt. Filterelementeme, der indsættes i filteret, kan for eksempel være i form af filterposer. Filterelementerne omfatter typisk 15 hver et trådstativ, hvorpå der er monteret en pose af et filtermateriale. Disse filterposer hænger fra en vandret skillevæg og ned i et støvkammer, hvortil den støvholdige gas eller luft tilføres og ledes op over skillevæggen gennem filterposerne. Støvpartiklerne afsættes herved på filterposen og falder ned i bunden af filterhuset, hvorfra de kan fjernes.Such filters are well known. For example, the filter elements inserted into the filter may be in the form of filter bags. Typically, the filter elements comprise a wire rack on which is mounted a bag of filter material. These filter bags hang from a horizontal partition and down into a dust chamber to which the dusty gas or air is supplied and passed up over the partition through the filter bags. The dust particles are thereby deposited on the filter bag and fall into the bottom of the filter housing from which they can be removed.
2020
Det samme gør sig gældende ved benyttelse af andre typer af filterelementer, hvor filtermateriale er fastgjort til en form for holder. Dette kan for eksempel være filterpatroner, men ethvert egnet filtermateriale kan bruges.The same is true when using other types of filter elements, where filter material is attached to a form of holder. For example, this can be filter cartridges, but any suitable filter material can be used.
25 Når den støvholdige/produktholdige gas tilføres støvkammeret ud for filterelementerne, sker der en vis slitage på filterelementerne, især de filterelementer, der er placeret nærmest indløbet. Dette problem med slitage er søgt løst i dansk patent nr. 175107 B1 ved at anbringe et antal diffusorelementer i indløbet uden forfilterhuset, se patentskrift DK 175107 B1.25 When the dusty / product-containing gas is supplied to the dust chamber next to the filter elements, some wear on the filter elements, especially the filter elements located closest to the inlet, occurs. This problem of wear has been solved in Danish Patent No. 175107 B1 by placing a number of diffuser elements in the inlet without the pre-filter housing, see patent specification DK 175107 B1.
30 2 DK 176658 B130 2 DK 176658 B1
Denne løsning har dog en begrænsning for den produktmængde, der føres gennem filteret. Ved store produktmængder vil der selv med diffusorelemen-ter blive slitage.However, this solution has a limitation on the amount of product passed through the filter. For large quantities of products, even with diffuser elements will wear.
5 Fra JP 7-229617 A kendes et filter omfattende et filterhus, filterelementer, et indløb, en indre kegledel, en indre cylinderdel og en skilleplade, der er placeret i tragtdelen (mellem filterhusets ’’tragt” og konussen på den indre kegledel) og modvirker, at gassen kommer i roterende bevægelse.From JP 7-229617 A, a filter comprising a filter housing, filter elements, an inlet, an inner cone part, an inner cylinder part and a separating plate located in the funnel part (between the 'funnel' of the filter housing and the cone on the inner cone part) is known. counteract that the gas gets in rotating motion.
10 Filterhuset er i JP 7-229617 A et filterhus med kvadratisk tværsnit, hvor der opstår det problem, at gassen, når den ledes ind i filterhuset, vil strømme mod hjørnerne i kvadratet, hvor der er størst fri passage på grund af at inder-delen er cylindrisk.In JP 7-229617 A, the filter housing is a square cross-sectional filter housing, where there is the problem that the gas, as it is led into the filter housing, will flow to the corners of the square where there is the greatest free passage due to the inner passage. the part is cylindrical.
15 For at opnå en jævn fordeling af gasstrømmen, er det derfor nødvendigt at have en form for diffusorer anbragt i de hjørner, der opstår på grund af sammensætningen af de to geometrier.15 In order to obtain an even distribution of the gas flow, it is therefore necessary to have some form of diffusers disposed in the corners which arise due to the composition of the two geometries.
Da der er anbragt en cylindrisk del i en kvadratisk del, vil der ikke opstå en 20 rotation i mellemrummet mellem den cylindriske del og den kvadratiske del, da gasstrømmen vil vælge den letteste vej og det vil være i opadgående retning i hjørnerne.Since a cylindrical part is disposed in a square part, there will not be a rotation in the space between the cylindrical part and the square part, since the gas flow will choose the easiest path and it will be upwards in the corners.
Disse diffusorer har altså til formål at begrænse gasstrømmen i at strømme 25 den vej og ikke at lede gasstrømmen den vej.Thus, these diffusers are intended to limit the gas flow in flowing that way and not to direct the gas flow that way.
Det, der sædvanligvis føres gennem filteret, er en gasstrøm. Denne gasstrøm er i mange tilfælde atmosfærisk luft, men kan i andre tilfælde være en gasart eller andre blandinger af gasarter, hvori befinder sig partikler, der se-30 pareres fra gasstrømmen i filteret.What is usually passed through the filter is a gas stream. This gas stream is in many cases atmospheric air, but may in other cases be a gas species or other mixtures of gases in which particles are separated from the gas stream in the filter.
3 DK 176658 B13 DK 176658 B1
Der kan således være tale om et produkt, der føres med en gasstrøm, hvilket produkt frasepareres i filteret, eller der kan være tale om partikler, der er uønskede i en gasstrøm og derfor bortfiltreres.Thus, it may be a product fed with a gas stream, which product is separated into the filter, or may be particles which are undesirable in a gas stream and therefore filtered away.
5 Det kan derfor være gassen eller gasserne i gasstrømmen, der er et slut-eller delprodukt, eller det kan være det fraseparerede produkt.Therefore, it may be the gas or gases in the gas stream that is a final or partial product, or it may be the separated product.
Det kan således også være renset luft eller renset gas fra røggas eller lignende, man ønsker at opnå.Thus, it may also be purified air or purified gas from flue gas or the like which one wishes to obtain.
10 I det følgende vil vi blot omtale strømmen som en gasstrøm og benytte termen gas generelt.10 In the following, we will simply describe the flow as a gas stream and use the term gas in general.
Da produktet som oftest vil være på partikelform, vil produktet i det følgende 15 omtales som partikler, men i sagens natur skal begrebet partikler opfattes i sin bredeste forstand.Since the product will most often be in particulate form, the product will in the following be referred to as particles, but by its nature the concept of particles must be understood in its broadest sense.
Problemet med store partikelmængder i gassen er, at partiklerne giver et relativt stort slid på for eksempel filterelementeme. Dette løses typisk ved at 20 anvende en forudskiller, f.eks. i form af en cyklon.The problem with large amounts of particles in the gas is that the particles cause a relatively large wear on, for example, the filter elements. This is typically solved by using a pre-separator, e.g. in the form of a cyclone.
Der kendes også en teknik, hvor gas og produkt ledes ind i filteret under filterelementerne. Herved opnås den effekt, at størsteparten af produktet udskilles under filterelementerne og falder ned til udløbet af filteret. Derved 25 undgår man, at de partikler, der indeholdes i gasstrømmen, ledes direkte ind på filterelementeme.A technique is also known in which gas and product are fed into the filter under the filter elements. This results in the effect of separating most of the product below the filter elements and falling to the outlet of the filter. Thereby, it is avoided that the particles contained in the gas stream are fed directly into the filter elements.
Ved denne løsning er der dog den ulempe, at der kommer en relativ stor opadgående gasstrøm mellem filterelementerne, som vanskeliggør rensning af 30 filterelementeme, idet støvet skal falde mod gasstrømmen for at komme ud af filteret. Dette betyder i praksis, at der skal anvendes et meget større filter DK 176658 B1 4 end ellers for at få en opadgående gashastighed mellem filterelementerne, som er så lille, at støvet kan falde ned mod gasstrømmen.In this solution, however, there is the disadvantage that there is a relatively large upward flow of gas between the filter elements, which makes it difficult to clean the filter elements, since the dust must fall against the gas flow to get out of the filter. In practice, this means that a much larger filter must be used than otherwise to obtain an upward gas velocity between the filter elements, which is so small that the dust can fall down towards the gas flow.
En anden måde at løse problemet på er, at den indgående gasstrøm deles i 5 en opadgående og en nedadgående gasstrøm, der ikke føres direkte ind på filterelementerne i filteret. Fordelingen af hvor meget af gasstrømmen, der forløber i opadgående retning i forhold til, hvor meget af gasstrømmen, der forløber i nedadgående retning, kan styres ved at placere en cylindrisk inder-del i form af et indersvøb, der strækker sig i filterets længderetning og place-10 res i området for en rundtgående indløbsdel.Another way to solve the problem is to divide the incoming gas stream into an upward and downward gas stream that is not fed directly into the filter elements of the filter. The distribution of how much of the gas flow extending upwardly relative to how much of the gas flow extending downwardly can be controlled by placing a cylindrical inner portion in the form of an inner envelope extending in the longitudinal direction of the filter and is placed in the region of a circumferential inlet portion.
Her kan dog opstå den effekt, at gasstrømmen vil rotere med høj hastighed, idet gasstrømmen vil rotere "ind i sig selv” og derved give en selvforstærkende effekt i rotationen.Here, however, the effect may arise that the gas stream will rotate at high speed, the gas stream rotating "into itself", thereby giving a self-reinforcing effect in the rotation.
1515
DEN NYE TEKNIKTHE NEW TECHNOLOGY
Ved den nye teknik ifølge opfindelsen opnår man en forbedret fordeling af luftstrømmen i opad og nedadgående retning, samt at man reducerer luft-20 eller gasstrømmens rotation i området omkring filterindløbet.The new technique according to the invention achieves an improved distribution of the air flow upwards and downwards, and reduces the rotation of the air or gas flow in the area around the filter inlet.
Dette opnås ved, at der mellem filterhuset og den cylindriske inderdel er anbragt et skillelegeme i form af en rotationsbryder, der leder i det mindste en del af den gasstrøm, der ledes rundt i mellemrummet, der dannes mellem 25 filterhusets inderside og den cylindriske inderdels yderside, således at gasstrømmen afbøjes i en opad- og/eller nedadgående retning af rotationsbryderen. Gasstrømmen kan derfor ikke rotere i samme vandrette plan.This is achieved by placing a separating body between the filter housing and the cylindrical inner part, in the form of a rotary switch, which conducts at least a portion of the gas flow which is passed around the gap formed between the inside of the filter housing and the outer part of the cylindrical part. so that the gas flow is deflected in an upward and / or downward direction by the rotary switch. Therefore, the gas flow cannot rotate in the same horizontal plane.
Skillelegemet fungerer således som en rotationsbremse eller rotationsbryder, 30 idet skillelegemet bryder gasstrømmens rotation, så gasstrømmen ikke bliver ved at rotere rundt i filterhusets indløb.The separator thus functions as a rotary brake or rotary switch, the separator interrupting the rotation of the gas stream so that the gas stream does not rotate around the inlet of the filter housing.
5 DK 176658 B15 DK 176658 B1
Uden rotationsbryder vil gasstrømmen rotere i filterhusets indløb på grund af, at den gas, der kommer ind gennem indløbet, vil fortsætte rundt langs indersiden af filterhuset i det mellemrum, der dannes mellem filterhusets inderside 5 og den cylindriske inderdels yderside, og når den partikelholdige gasstrøm kommer rundt, vil den blive blandet med og accelereret op af den partikelholdige gasstrøm, der kommer ind af indløbet. Den høje rotationshastighed, der opstår derved, vil påvirke filterelementeme, så de sættes i svingninger, når gasstrømmen i en spiralformet bane ledes op over og/eller ned under den 10 øvre eller nedre kant af den indvendige cylinderdel. Når filterelementerne kommer til at svinge, vil de slå mod hinanden, og bliver således beskadiget.Without a rotary switch, the gas flow will rotate in the filter housing inlet because the gas entering through the inlet will continue around the inside of the filter housing in the space formed between the inside of the filter housing 5 and the cylindrical inner portion, reaching the particulate gas flow. coming around, it will be mixed with and accelerated by the particulate gas flow coming in from the inlet. The high rotational speed resulting therefrom will affect the filter elements so that they are oscillated as the gas flow in a helical web is directed up and / or down below the upper or lower edge of the inner cylinder portion. When the filter elements swivel, they will hit each other, thus being damaged.
Rotationsbryderen kan være udformet som et legeme, der lukker helt til ind mod den cylindriske inderdel og mod filterhusets inderside. Dette bevirker, at 15 partiklerne, som følger filterhusets inderside, ledes i opadgående og/eller nedadgående retning forbi skillelegemet, hvorved rotationen brydes.The rotary switch may be configured as a body that closes fully against the cylindrical inner portion and toward the inside of the filter housing. This causes the particles which follow the inside of the filter housing to be directed upwardly and / or downwardly past the separating body, thereby breaking the rotation.
Rotationsbryderen kan også være udformet som et legeme, der lukker helt til ind mod den cylindriske inderdel, mens der er en smal åbning mellem filter-20 husets inderside og rotationsbryderen. Dette bevirker, at partiklerne, som følger filterhusets inderside, slipper igennem og fortsætter med rundt. Herved dannes en dynamisk udskilningsproces, hvor partiklerne følger en skruebane rundt i filteret, og ned mod bunden af filteret.The rotary switch may also be configured as a body that closes fully against the cylindrical inner portion, while there is a narrow opening between the inside of the filter housing and the rotary switch. This causes the particles that follow the inside of the filter housing to pass through and continue around. This creates a dynamic separation process where the particles follow a screw path around the filter and down to the bottom of the filter.
25 Rotationsbryderen kan være udformet med en plan overflade og kan bestå af en eller flere dele af plane overflader.The rotary switch may be formed with a flat surface and may consist of one or more parts of flat surfaces.
Rotationsbryderen kan også være udformet med en krum overflade eller kan bestå af en eller flere dele af krumme overflader.The rotary switch may also be formed with a curved surface or may consist of one or more parts of curved surface.
30 6 DK 176658 B1 I en udførelsesform kan den eller de plane flader være dannet af en eller flere pladestykker.In one embodiment, the flat surface (s) may be formed of one or more sheet pieces.
I andre udførelsesformer kan rotationsbryderen udgøres af andre rummelige 5 figurer. Det væsentlige ved rotationsbryderen eller rotationsbryderne er, at den eller de kan placeres ved indløbet til filteret og kan spærre helt eller delvist for gasstrømmen, således at rotationen af gasstrømmen brydes.In other embodiments, the rotary switch may be comprised of other spacious 5 figures. The essence of the rotary switch (s) is that it can be located at the inlet of the filter and can block the gas flow in whole or in part, thus breaking the rotation of the gas flow.
Ved at forsyne den cylindriske inderdel med et antal i alt væsentligt vandret 10 plan forløbende plader i forbindelse med rotationsbryderen, fordeles luftmængden mere ensartet rundt i filtret, idet gasstrømmen presses henholdsvis op og ned fra indløbsområdet.By providing the cylindrical inner portion with a plurality of substantially horizontal plane extending plates in connection with the rotary switch, the amount of air is distributed more uniformly around the filter, the gas flow being pressed up and down from the inlet region respectively.
Ved at udforme de i alt væsentligt vandret plan forløbende plader, så de har 15 størst bredde ved rotationsbryderen og derefter aftager i bredden i takt med, at afstanden til rotationsbryderen øges og set mod strømningsretningen, opnås den effekt, at gasstrømmen fordeles mere ensartet rundt i filteret, såvel i opadgående som nedadgående retning.By forming the substantially horizontal planar plates so that they have the greatest width at the rotary switch and then decrease in width as the distance to the rotary switch increases and seen towards the flow direction, the effect is obtained that the gas flow is distributed more evenly around the the filter, both upwards and downwards.
20 Det vil sige, at den spalte, der opstår mellem filterhusets inderside og de i alt væsentligt vandret plan forløbende plader, kan udformes, så afstanden mellem spalten ændres mere eller mindre jævnt, eller så ændringen foregår i spring.That is, the gap that arises between the inside of the filter housing and the substantially horizontal planar plates can be designed so that the gap between the gap changes more or less evenly or the change takes place in leaps.
25 De i alt væsentligt vandret plan forløbende plader kan forløbe langs hele omkredsen af den cylindriske inderdel uden at danne en spalte mellem plade og filterhusets inderside. I stedet er pladen eller pladerne forsynet med huller, hvilke huller kan være af forskellig størrelse. Hullerne kan også anbringes efter et bestemt mønster for at opnå en særlig fordeling af gasstrøm og/eller 30 partikler.The substantially horizontal planar plates may extend along the entire circumference of the cylindrical inner portion without forming a gap between plate and the inside of the filter housing. Instead, the plate or plates are provided with holes, which holes can be of different sizes. The holes may also be positioned according to a particular pattern to achieve a particular distribution of gas flow and / or particles.
7 DK 176658 B1 I en anden udførelsesform kan rotationsbryderen være monteret forskydeligt med almindelige forskydningsmidler, således at rotationsbryderen eventuelt med de i alt væsentligt vandret plan forløbende plader kan forskydes i det mindste langs en del af den cylindriske inderdels omkreds.In another embodiment, the rotary switch may be slidably mounted with ordinary shear means so that the rotary switch may be displaced at least along a portion of the cylindrical inner portion with the substantially horizontal planar plates.
5 I endnu en udførelsesform kan de i alt væsentligt vandret plan forløbende plader udformes, så de støtter eller fastgøres på filterhusets inderside, og således at der dannes en spalte mellem den eller de i vandret plan forløbende plader og den cylindriske inderdel.In yet another embodiment, the substantially horizontal plane plates may be formed so as to support or fasten on the inside of the filter housing, thus forming a gap between the plate or plate extending in the horizontal plane and the cylindrical inner portion.
1010
Formålet med nærværende opfindelse er at anvise en måde, hvor selv meget store partikelmængder kan håndteres i et filter, uden at der monteres en forudskiller før filteret, og uden at filterelementerne slides nævneværdigt.The object of the present invention is to provide a way in which even very large quantities of particles can be handled in a filter without a pre-separator being mounted before the filter and without the filter elements being significantly worn.
15 Dette opnås ved, at der mellem filterhuset og den cylindriske inderdel er anbragt i det mindste ét skillelegeme, der bryder gasstrømmen, så denne ikke kan rotere i i alt væsentligt samme vandrette plan.This is achieved by placing at least one separating body between the filter housing and the cylindrical inner part so that it cannot rotate in substantially the same horizontal plane.
Ved på denne måde at bryde gasstrømmens rotation opnås en bedre forde-20 ling af gasstrømmen i filteret.By thus interrupting the rotation of the gas stream, a better distribution of the gas stream in the filter is obtained.
Ved et filter ifølge krav 2 angives en udførelsesform for rotationsbryderen, der giver mulighed for partikler at passere mellem rotationsbryder og filterhus.A filter according to claim 2 discloses an embodiment of the rotary switch which allows particles to pass between rotary switch and filter housing.
2525
Ved krav 3 angives en yderligere udførelsesform for rotationsbryderen, der giver mulighed for partikler at passere gennem én eller flere åbninger i rotationsbryderen.Claim 3 discloses a further embodiment of the rotary switch which allows particles to pass through one or more openings in the rotary switch.
30 Ved krav 4 og 5 opnås ved hjælp af den beskrevne plade eller kant, at en større del af gasstrømmen presses opad fra indløbsområdet, idet der dannes 8 DK 176658 B1 større modtryk for gassens vej ned under den cylindriske inderdel og op mellem filterelementerne.According to claims 4 and 5, by means of the plate or edge described, a greater part of the gas flow is forced upwards from the inlet region, creating a greater back pressure for the gas path down the cylindrical inner part and up between the filter elements.
Ved krav 6 till 1 opnås, at det er muligt at tilpasse rotationsbryderen med et 5 antal plader, der strækker sig fra rotationsbryderen og rundt i mellemrummet mellem filterhusets inderside og den cylindriske inderdels yderside til en hensigtsmæssig gennemstrømning af filteret.Claims 6 to 1 provide that it is possible to adapt the rotary switch with a plurality of plates extending from the rotary switch and in the space between the inside of the filter housing and the outer side of the cylindrical part for an appropriate flow of the filter.
Opfindelsen forklares herefter nærmere med henvisning til tegningen, 10 hvor: fig. 1 viser et filter set fra oven, fig. 2 viser filteret fra figur 1, set i delsnit A-A, 15 fig. 3 viser et filter med angivelse af placeringen af snit B-B, fig. 4 viser filteret fra figur 3, set i snit B-B, 20 fig. 5 viser et filter med angivelse af placeringen af snit C-C, og fig. 6 viser filteret fra figur 5, set i snit C-C.The invention will now be explained in more detail with reference to the drawing, wherein: fig. 1 is a top view of a filter; FIG. 2 shows the filter of FIG. 1, seen in section A-A; FIG. Figure 3 shows a filter indicating the location of section B-B; 4 shows the filter of FIG. 3, seen in section B-B, FIG. 5 shows a filter indicating the location of section C-C, and FIG. 6 shows the filter from figure 5, seen in section C-C.
Herefter beskrives hensigtsmæssige udførelsesformer for opfindelsen 25 under henvisning til tegningen.Next, convenient embodiments of the invention 25 are described with reference to the drawings.
I en første udførelsesform omfatter opfindelsen et filter 1 omfattende et filterhus 2 med en i det væsentlige vandret skillevæg, der opdeler filterhuset 2 i et rengaskammer og et støvkammer, hvilken skillevæg er forsynet med et antal 30 åbninger, hvori der er anbragt et antal filterelementer 5, der er fastgjort til skillevægen, og strækker sig ned i støvkammeret. Filteret 1 er forsynet med et 9 DK 176658 B1 indløb 3 i åben forbindelse med støvkammeret, idet indløbet 3 er indrettet til indføring af en partikelholdig gasstrøm til støvkammeret.In a first embodiment, the invention comprises a filter 1 comprising a filter housing 2 having a substantially horizontal partition dividing the filter housing 2 into a cleaning chamber and a dust chamber, said partition being provided with a number of openings in which a number of filter elements 5 are arranged. , which is attached to the partition, and extends down into the dust chamber. The filter 1 is provided with an inlet 3 in open communication with the dust chamber, the inlet 3 being adapted for introducing a particulate gas stream into the dust chamber.
Gas indeholdende partikler ledes ind gennem indløbet 3 og videre ind i filte-5 ret 1. Gassen med partikler ledes delvist over en cylindrisk inderdel også kaldet et indersvøb 4 og ind omkring filterelementerne 5 og delvist ned under den cylindriske inderdel 4 og op mellem filterelementerne 5.Gas containing particles is passed through the inlet 3 and further into the filter 5. The gas with particles is passed partly over a cylindrical inner part also called an inner envelope 4 and in around the filter elements 5 and partly down below the cylindrical inner part 4 and up between the filter elements 5 .
Filterelementerne 5 er anbragt på kendt måde eksempelvis i huller i en i alt 10 væsentligt vandret skillevæg (ikke vist), så de hænger fra den vandrette skillevæg og ned i et støvkammer, hvortil den partikelholdige gas eller luft tilføres og ledes op over skillevæggen gennem filterelementerne 5. Partiklerne afsættes herved på filterelementerne 5 og falder ned i filterets 1 bund 8, hvorfra de kan fjernes.The filter elements 5 are arranged in known manner, for example, in holes in a substantially horizontal partition wall (not shown), so that they hang from the horizontal partition and down into a dust chamber to which the particulate gas or air is fed and is led up over the partition through the filter elements. 5. The particles are hereby deposited on the filter elements 5 and fall into the bottom 8 of the filter 1 from which they can be removed.
1515
Mellem filterhuset 2 og den cylindriske inderdel 4 anbringes et skillelegeme 6, der hindrer gasstrømmen i at rotere i samme vandrette plan.A separating body 6 is arranged between the filter housing 2 and the cylindrical inner part 4, which prevents the gas flow from rotating in the same horizontal plane.
Skillelegemet 6 fungerer således som en rotationsbremse eller rotationsbry-20 der, idet skillelegemet 6 bryder gasstrømmens rotation, således at i det mindste en del af den gasstrøm, der ledes rundt i det mellemrum, der dannes mellem filterhusets 2 inderside og den cylindriske inderdels 4 yderside, således at gasstrømmen afbøjes i en opad- og/eller nedadgående retning af rotationsbryderen 6. Gasstrømmen kan derfor ikke rotere i samme vandrette 25 plan.The separator 6 thus acts as a rotary brake or rotary breaker, the separator 6 interrupts the rotation of the gas stream so that at least a portion of the gas flow is conducted around the gap formed between the inside of the filter housing 2 and the outer surface of the cylindrical part 4. so that the gas flow is deflected in an upward and / or downward direction by the rotary switch 6. Therefore, the gas stream cannot rotate in the same horizontal plane.
Uden rotationsbryder 6 vil gasstrømmen rotere i filterhuset 2 på grund af, at den luft eller gas, der kommer ind gennem indløbet 3 vil fortsætte rundt langs indersiden af filterhuset 2 i det mellemrum, der dannes mellem filterhusets 2 30 inderside og den cylindriske inderdels 4 yderside, og når den partikelholdige gasstrøm kommer rundt, vil den blive blandet med og accelereret op af den 10 DK 176658 B1 partikelholdige gasstrøm, der kommer ind af indløbet 3. Den høje rotationshastighed, der opstår derved, vil påvirke filterelementerne 5, så de sættes i svingninger. Når filterelementerne 5 kommer til at svinge, vil de slå mod hinanden, og bliver således beskadiget.Without rotary switch 6, the gas flow will rotate in the filter housing 2 because the air or gas entering through the inlet 3 will continue around the inside of the filter housing 2 in the space formed between the inside of the filter housing 2 and the outer surface of the cylindrical part 4. and when the particulate gas stream comes around, it will be mixed with and accelerated by the particulate gas stream coming in from the inlet 3. The high rotational speed resulting therefrom will affect the filter elements 5 fluctuations. When the filter elements 5 turn, they will strike against each other, thus being damaged.
55
Rotationsbryderen kan være udformet som et legeme 6, der lukker helt til ind mod den cylindriske inderdel 4 og mod filterhusets 2 inderside. Dette bevirker, at partiklerne, som følger filterhusets 2 inderside, ledes i opadgående eller nedadgående retning forbi rotationsbryderen 6, hvorved rotationen bry-10 des.The rotary switch may be configured as a body 6 which closes fully against the cylindrical inner part 4 and against the inside of the filter housing 2. This causes the particles which follow the inside of the filter housing 2 to be directed upwards or downwards past the rotary switch 6, thereby breaking the rotation.
Rotationsbryderen kan også være udformet som et legeme 6, der lukker helt til ind mod den cylindriske inderdel 4, mens der er en smal åbning mellem filterhusets 2 inderside og rotationsbryderen. Dette bevirker, at partiklerne, 15 som følger filterhusets 2 inderside, slipper igennem og fortsætter med rundt. Herved dannes en dynamisk udskilningsproces, hvor partiklerne følger en skruebane rundt i filteret 1 og ned mod bunden 8 af filteret 1.The rotary switch may also be formed as a body 6, which closes fully against the cylindrical inner part 4, while there is a narrow opening between the inside of the filter housing 2 and the rotary switch. This causes the particles, 15 which follow the inside of the filter housing 2, to pass through and continue around. This creates a dynamic separation process where the particles follow a screw path around the filter 1 and down to the bottom 8 of the filter 1.
Rotationsbryderen 6 kan være udformet med en plan overflade og kan bestå 20 af en eller flere dele af plane overflader.The rotary switch 6 may be formed with a flat surface and may comprise 20 of one or more parts of flat surfaces.
Rotationsbryderen 6 kan også være udformet med en krum overflade eller kan bestå af en eller flere dele af krumme overflader.The rotary switch 6 may also be formed with a curved surface or may consist of one or more parts of curved surface.
25 I en udførelsesform kan den eller de plane flader være dannet af en eller flere pladestykker.In one embodiment, the flat surface (s) may be formed by one or more sheet pieces.
I andre udførelsesformer kan rotationsbryderen 6 udgøres af andre rummelige figurer. Det væsentlige ved rotationsbryderen 6 eller skillelegemerne er, at 30 det kan placeres ved indløbet 3 til filteret 1, og at det kan spærre for gasstrømmen, således at rotationen af gasstrømmen brydes.In other embodiments, the rotary switch 6 may be constituted by other spacious figures. The essence of the rotary switch 6 or separators is that it can be positioned at the inlet 3 of the filter 1 and that it can block the gas flow so that the rotation of the gas flow is interrupted.
11 DK 176658 B111 DK 176658 B1
For at opnå en mere hensigtsmæssig fordeling af gasstrømmen langs filterhusets 2 inderside og henholdsvis op over og ned under den cylindriske in-derdels 4 kanter, kan der placeres et antal plader, der er fastgjort langs filter-5 husets 2 eller indløbets 3 inderside, hvilke plader strækker sig fortrinsvis langs hele omkredsen. Pladerne kan være i alt væsentligt vandrette eller have en hældning, der peger indad/nedad i forhold til en lodret akse, der forløber gennem filterets 1 centrum.In order to achieve a more convenient distribution of the gas flow along the inside of the filter housing 2 and up and down, respectively, below the edges of the cylindrical housing 4, a plurality of plates fixed along the inside of the filter housing 2 or inlet 3 can be placed, which plates preferably extend along the entire circumference. The plates may be substantially horizontal or have an inclination pointing inward / downward relative to a vertical axis extending through the center of the filter 1.
10 Ved at placere disse plader i forbindelse med den cylindriske inderdel 4, opnås at en større del af gasstrømmen presses opad fra indløbsområdet, idet der dannes større modtryk for gassens vej ned under den cylindriske inderdel 4 og op mellem filterelementerne 5. Herved opnås den effekt, at der ledes en større gasmængde op over den cylindriske inderdel 4, hvilket er med til at 15 sikre en relativt langsom opadgående gasstrøm mellem filterelementerne I en udførselsform kan de plader, der er placeret/fastgjort til filterhuset 2 suppleres med et antal plader, der er fastgjort til rotationsbryderen 6.By placing these plates in conjunction with the cylindrical inner part 4, a greater part of the gas flow is forced upwards from the inlet area, thereby creating greater back pressure for the gas path down below the cylindrical inner part 4 and up between the filter elements 5. This results in the effect. that a larger amount of gas is directed upwardly over the cylindrical inner part 4, which helps to ensure a relatively slow upward flow of gas between the filter elements. In one embodiment, the plates placed / attached to the filter housing 2 can be supplemented by a number of plates which is attached to the rotary switch 6.
20 Ved at forsyne rotationsbryderen 6 med et antal plader 7, der strækker sig i det mindste langs en del af omkredsen af den cylinderformede inderdel 4, opnås en endnu mere hensigtsmæssig og ensartet fordeling af luftmængden rundt i filteret 1, idet gasstrømmen presses henholdsvis op og ned fra indløbsområdet.By providing the rotary switch 6 with a plurality of plates 7 extending at least along a portion of the circumference of the cylindrical inner part 4, an even more convenient and uniform distribution of the air flow is obtained around the filter 1, the gas flow being compressed and raised respectively. down from the inlet area.
2525
Pladerne 7, der er anbragt i umiddelbar forbindelse med rotationsbryderen 6 er fortrinsvis fastgjort til rotationsbryderen 6 på dennes over- og eller underkant.The plates 7 disposed adjacent to the rotary switch 6 are preferably attached to the rotary switch 6 on the upper and lower ends thereof.
30 Rotationsbryderens 6 lodrette udstrækning svarer i alt væsentligt til indløbets 3 lodrette udstrækning.The vertical extent of the rotary switch 6 corresponds substantially to the vertical extent of the inlet 3.
12 DK 176658 B112 DK 176658 B1
Ved at udforme pladerne 7, så de har størst bredde ved rotationsbryderen 6 og derefter aftager i bredden i takt med, at afstanden til rotationsbryderen 6 øges og set mod strømningsretningen, opnås den effekt, at gasstrømmen 5 fordeles mere ensartet rundt i filteret 1, såvel i opadgående som nedadgående retning.By shaping the plates 7 to have the greatest width at the rotary switch 6 and then decreasing in width as the distance to the rotary switch 6 increases and viewed towards the flow direction, the effect is obtained that the gas flow 5 is distributed more uniformly around the filter 1, as well in the upward and downward direction.
Det vil sige, at den spalte, der opstår mellem filterhusets 2 inderside og pladerne 7 kan udformes, så afstanden mellem spalten ændres mere eller min-10 dre jævnt, eller så ændringen foregår i spring.That is, the gap that occurs between the inside of the filter housing 2 and the plates 7 can be designed so that the distance between the gap changes more or less evenly or the change takes place in leaps.
Pladerne 7 kan forløbe langs hele omkredsen af den cylindriske inderdel 4 uden at danne en spalte mellem pladen 7 og filterhusets 2 inderside. I stedet er pladen 7 eller pladerne forsynet med huller, hvilke huller kan være af for-15 skellig størrelse. Hullerne kan også anbringes efter et bestemt mønster for at opnå en særlig fordeling af gasstrøm og/eller partikler I en anden udførelsesform kan rotationsbryderen 6 være monteret forskydeligt med almindelige forskydningsmidler, således at rotationsbryderen 6 even-20 tuelt med plader 7 kan forskydes i det mindste langs en del af den cylindriske inderdels 4 omkreds.The plates 7 can extend along the entire circumference of the cylindrical inner part 4 without forming a gap between the plate 7 and the inside of the filter housing 2. Instead, the plate 7 or plates are provided with holes, which holes can be of different sizes. The holes may also be arranged according to a particular pattern to achieve a particular distribution of gas flow and / or particles. In another embodiment, the rotary switch 6 may be mounted slidably with ordinary shear means so that the rotary switch 6 may be displaced at least by plates 7 at least. along a part of the circumference of the cylindrical inner part 4.
I endnu en udførelsesform kan pladerne 7 udformes, så de støtter eller fastgøres på filterhusets 2 inderside og således, at der dannes en spalte mellem 25 pladerne 7 og den cylindriske inderdel 4.In yet another embodiment, the plates 7 can be designed to support or fasten to the inside of the filter housing 2 and to form a gap between the plates 7 and the cylindrical inner part 4.
Pladerne kan være placeret i alt væsentligt vandret eller have en tydelig hældning. Det er blot vigtigt, at man undgår, at der samles partikler på en plade med bagudhældning, det vil sige en plade, hvor den frie kant befinder 30 sig højere i niveau end den kant, der er fastgjort til filterhuset 2 eller for eksempel til den cylindriske inderdel 4. Derfor vil pladerne i forbindelse med 13 DK 176658 B1 opfindelsen foretrækkes at være placeret i alt væsentligt vandret eller at have en hældning, således at den til enhver tid frie kant befinder sig lavere i niveau end en eventuel kant, der støder op til eller er fastgjort til en i alt væsentlig lodret flade.The plates may be located substantially horizontally or have a clear inclination. It is only important to avoid collecting particles on a backward-facing plate, that is, a plate where the free edge is 30 higher in level than the edge attached to the filter housing 2 or, for example, to it. cylindrical inner part 4. Therefore, in connection with the invention, the plates will preferably be positioned substantially horizontally or having a slope such that the free edge is at any time lower in level than any adjacent edge. to or is attached to a substantially vertical surface.
55
Claims (11)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK200601284A DK176658B1 (en) | 2006-10-04 | 2006-10-04 | Rotary switch for inlet on filter |
| US12/310,297 US20100077709A1 (en) | 2006-08-21 | 2007-08-20 | Filter inlet |
| EP07785744.9A EP2056953B1 (en) | 2006-08-21 | 2007-08-20 | A filter inlet |
| PL07785744T PL2056953T3 (en) | 2006-08-21 | 2007-08-20 | A filter inlet |
| CN2007800383191A CN101573168B (en) | 2006-08-21 | 2007-08-20 | A filter inlet |
| DK07785744.9T DK2056953T3 (en) | 2006-08-21 | 2007-08-20 | FILTER INLET |
| PCT/DK2007/000380 WO2008022639A1 (en) | 2006-08-21 | 2007-08-20 | A filter inlet |
| US13/556,311 US20130067876A1 (en) | 2006-08-21 | 2012-07-24 | Filter Inlet |
| US13/789,719 US9254458B2 (en) | 2006-08-21 | 2013-03-08 | Filter inlet |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK200601284 | 2006-10-04 | ||
| DK200601284A DK176658B1 (en) | 2006-10-04 | 2006-10-04 | Rotary switch for inlet on filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK200601284A DK200601284A (en) | 2008-04-05 |
| DK176658B1 true DK176658B1 (en) | 2009-02-02 |
Family
ID=39326950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK200601284A DK176658B1 (en) | 2006-08-21 | 2006-10-04 | Rotary switch for inlet on filter |
Country Status (1)
| Country | Link |
|---|---|
| DK (1) | DK176658B1 (en) |
-
2006
- 2006-10-04 DK DK200601284A patent/DK176658B1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DK200601284A (en) | 2008-04-05 |
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