NO161163B

NO161163B - FILTER LIGHT WITH INTEGRATED PRESSURE REDUCTION DEVICE.

Info

Publication number: NO161163B
Application number: NO853745A
Authority: NO
Inventors: Willi Hecking; Arend Sasserath
Original assignee: Sasserath & Co Kg H
Priority date: 1984-09-25
Filing date: 1985-09-24
Publication date: 1989-04-03
Also published as: NO161163C; DE3435128A1; EP0176867A3; EP0176867B1; EP0176867A2; DE3564196D1; NO853745L; ATE36251T1

Abstract

1. Filter assembly for installation in a throughflow pipe for a liquid or gaseous medium, consisting of a tube piece (1) having an inlet (2) and an outlet (4), having a lateral projection (6) connected to the inlet (2), to which projection (6) a filter cup (20) for accommodation of a generally annular multiple tube filter (26) is connected, having a connection element (7) extending coaxially in the projection and connected to the outlets to which connection element (7) the interior of the multiple tube filter (26) is connected, and having at least one manometer part (11), characterized in that the connection element (7) is provided with an opening (9) for accommodation of a pressure reducer (30) on the side facing the multiple tube filter (26), and the filter cup (20) is provided with an aperture (24) for passage of the pressure reducer (30) on the side opposite the connection member (7).

Description

Oppfinnelsen angår et filterarmatur for innbygging i en gjennomstrømningsledning for et flytende eller gassformet medium, bestående av et rørstykke med et inntak og et uttak, en ansats forbundet med inntaket til hvilket en filterskål for opptak av en i det vesentlige ringformet filtersylinder kan tilsluttes, med en koaksialt inn i ansatsen forløpende og med uttaket forbundet forbindelsesdel med hvilken filtersylinderens indre kan tilkobles, samt minst en manometertilkobling. The invention relates to a filter fitting for installation in a flow line for a liquid or gaseous medium, consisting of a piece of pipe with an inlet and an outlet, an attachment connected to the inlet to which a filter bowl for receiving an essentially ring-shaped filter cylinder can be connected, with a coaxially into the attachment continuously and connected to the outlet connecting part with which the inside of the filter cylinder can be connected, as well as at least one pressure gauge connection.

Filterarmaturer av denne type, (eksempelvis Braukmann-Hauswasser-Station HS 10) forbindes vanligvis med reduksjonsventilen til en kombinert armatur på den motsatt filterskålen anordnede side, slik at det ved innbyggingen av filteret tilstreves en beskyttelse mot nedset-telse av vannkvaliteten og korrosjonsproblemer som derved måtte oppstå. En viss ulempe med slike anordninger består i at armaturene etter innbyggingen må være tilgjengelige for vedlikehold og reperasjon fra den motsatte side. Filter fittings of this type, (for example Braukmann-Hauswasser-Station HS 10) are usually connected to the reduction valve of a combined fitting on the opposite side of the filter bowl, so that when the filter is installed protection is sought against a reduction in the water quality and corrosion problems which thereby had to occur. A certain disadvantage of such devices is that, after installation, the fittings must be accessible for maintenance and repair from the opposite side.

Følgelig består den foreliggende oppfinnelses oppgave i å frembringe et filterarmatur med integrert reduksjonsventil som har en i forhold til kjente armaturer forbedret oppbygning. Consequently, the task of the present invention consists in producing a filter fitting with an integrated reduction valve which has an improved structure compared to known fittings.

Ifølge oppfinnelsen løses denne oppgave ved at forbindelsesdelen på den side som vender mot filtersylinderen har en åpning for opptak av en reduks jonsventil og at filtersylinderen på den side som ligger motsatt forbindelsesdelen har en åpning for gjennomføring av reduksjonsventilen. According to the invention, this task is solved by the connection part on the side facing the filter cylinder having an opening for receiving a reduction valve and the filter cylinder on the side opposite the connection part having an opening for the passage of the reduction valve.

Ved denne utforming av filterarmaturet kan reduksjonsventilen innsettes i filtersylinderens indre slik at filteret og også reduksjonsventilen er tilgjengelig fra samme side og ikke fra to motstående sider. Fordelaktig kan herved rørstykkets ansats dannes av en dobbeltvegget, vinklet ansats hvis indre rør forbinder filtersylinderens indre med uttaket og hvis ytre rør forbinder inntaket med det ringrom som er dannet mellom filterskålen og filtersylinderen, og ansatsen, kan forbindes med rørstykket på den ende som vender bort fra filterskålen via en løsbar og i frigjort stilling, i vinkel til rørstykket innstillbar tilkoblingsdel. Herved kan filterskålen innstilles i enhver ønsket vinkel til en gitt rørledning. With this design of the filter fitting, the reduction valve can be inserted inside the filter cylinder so that the filter and also the reduction valve are accessible from the same side and not from two opposite sides. Advantageously, the fitting of the pipe piece can be formed by a double-walled, angled fitting whose inner pipe connects the inside of the filter cylinder with the outlet and whose outer pipe connects the intake with the annulus formed between the filter bowl and the filter cylinder, and the fitting can be connected to the pipe piece on the end facing away from the filter bowl via a detachable and, in the released position, adjustable connection part at an angle to the pipe section. In this way, the filter bowl can be set at any desired angle to a given pipeline.

Det er fordelaktig at reduksjonsventilen har et som sådan kjent ventilsetelegeme, et dermed samvirkende og med en membran forbundet styrestempel, et styrekammer som har uttakstrykket, anordnet på en side av membranen, en fjær som belaster membranen på den annen side, og et fjærkammer med en innstillingsanordning for innstilling fjærspenningen, idet ventilsetelegemet er tettende innsatt 1 forbindelsesstykkets åpning og styrestemplet har en gjennomgående boring som forbinder styrekammeret med uttaket . It is advantageous that the reduction valve has a valve seat body known as such, a control piston that interacts with it and is connected to a diaphragm, a control chamber that has the outlet pressure, arranged on one side of the diaphragm, a spring that loads the diaphragm on the other side, and a spring chamber with a setting device for setting the spring tension, as the valve seat body is tightly inserted into the opening of the connecting piece and the control piston has a through bore that connects the control chamber to the outlet.

En utførelse av filterarmaturen ifølge oppfinnelsen er vist på tegningen i lengdesnitt og beskrives i det etterfølgende detaljert. An embodiment of the filter fitting according to the invention is shown in the drawing in longitudinal section and is described in detail below.

Filterarmaturen inneholder et rørstykke 1 som ved inntaket 2 har en tilkoblingsstuss 3 og ved uttaket 4 har en tilkoblingsstuss 5. En ansats 6 på siden har ytre gjenger for tilkobling av den nedenfor beskrevne filteranordning. Inn i denne ansats strekker et koaksialt f orbindelsess tykke 7 seg som på den side som vender mot filteranordningen har en ring 8 med en åpning 9. Forbindelsesstykket 7 er adskilt fra rørstykkets 1 inntak 2, men står i forbindelse med dettes uttak 4. Rørstykkets inntak 2 står i forbindelse med et ringrom 10 som er dannet i ansatsen 6 og omgir forbindelsesstykket 7. Ringrommet 10 har en tilkobling 11 for en prøveanordning eller et manometer, idet et manometer 12 for inntakstrykket er tilkoblet i den viste utførese. Den viste utførelse har på uttakssiden en ytterligere tilkobling 13 for en prøve-anordning eller et manometer, idet et manometer 14 for utgangs trykket her er tilkoblet. The filter fitting contains a piece of pipe 1 which has a connecting piece 3 at the inlet 2 and a connecting piece 5 at the outlet 4. A shoulder 6 on the side has external threads for connecting the filter device described below. Into this approach extends a thick coaxial connection 7, which on the side facing the filter device has a ring 8 with an opening 9. The connection piece 7 is separated from the inlet 2 of the pipe piece 1, but is connected to its outlet 4. The inlet of the pipe piece 2 is in connection with an annular space 10 which is formed in the shoulder 6 and surrounds the connecting piece 7. The annular space 10 has a connection 11 for a test device or a manometer, a manometer 12 for the intake pressure being connected in the version shown. The embodiment shown has on the outlet side a further connection 13 for a test device or a manometer, a manometer 14 for the output pressure being connected here.

Filteranordningen består av en filterskål 20 som på sin'åpne side har en krage 21. Kragen er festet tettende til rørstykkets 1 ansats 6 ved hjelp av en ringmutter 22 og en mellomliggende tetningsring. På motsatt ende er på filterskålens 20 innside en føring 23 og en åpning The filter device consists of a filter bowl 20 which has a collar 21 on its open side. The collar is attached sealingly to the shoulder 6 of the pipe piece 1 by means of a ring nut 22 and an intermediate sealing ring. At the opposite end, on the inside of the filter bowl 20, there is a guide 23 and an opening

24 med et ringformet fremspring 25 utformet. 24 with an annular projection 25 designed.

I filterskålen 20 er en filtersylinder 26 innsatt som er ført i begge ender, nemlig i den ene ende av filterskålens 20 føring 23 og i den andre ende utvending av forbind-elses stykket 7. I f ilterarmaturens sattmenbygde tilstand dannes et ringrom 27 mellom filterskålen 20 og filtersylinderens 26, som står i forbindelse med rørstykkets 1 inntak 2 via ansatsens 6 ringrom 10. Filtersylinderens 26 indre rom 28 er via åpningen 9 i f orbindelsesstykkets 7 ring 8 forbundet med rørstykkets 1 uttak 4. In the filter bowl 20, a filter cylinder 26 is inserted which is guided at both ends, namely at one end of the guide 23 of the filter bowl 20 and at the other end the outside of the connecting piece 7. In the assembled state of the filter fitting, an annular space 27 is formed between the filter bowl 20 and the filter cylinder's 26, which is connected to the inlet 2 of the pipe piece 1 via the annular space 10 of the attachment 6. The inner space 28 of the filter cylinder 26 is connected via the opening 9 in the ring 8 of the connecting piece 7 to the outlet 4 of the pipe piece 1.

I filtersylinderens 26 indre rom 28 er en reduksjonsventil 30 innbygd. Denne reduksjonsventil 30 er opp-bygget på kjent måte, sammenlign eksempelvis hustilkob-lingsenheten Syropak, type 327 fra søkeren. Reduksjonsventilen 30 består av et ventilsetelegeme 31 som under mellomlegg av en tetningsring er innsatt tettende i åpningen 9 i forbindelsesstykkets 7 ring 8 og danner et ventil-sete. Gjennom ventilsetelegemet 31 strekker et styrestempel 32 seg. hvis bort fra ventilsetets vendende ende er festet til en membran 33. På den side av membranen 23 som vender mot ventilsetelegemet 31 er et styrekammer 34 dannet, som via en gjennomboring 35 i styrestemplet, er forbundet med rørstykkets 1 uttak 4, hhv. reduksjonsventilens lav-trykksside. På den side som vender bort fra ventilsetelegemet 31 er membranen 23 belastet med en fjær 35a som strekker seg gjennom et fjærkammer 36 og ligger an mot et innstillbart motlager 37. Det ringformede fjærkammer 36 strekker seg gjennom filterets 26 indre rom og er utformet med en ringskulder 38 som med mellomlegg av en tetningsring ligger tettende an mot det ringformede fremspring 25 i filterskålens 20 åpning 24. Fjærkammerets 36 ende er ført gjennom åpningen 24 og har en innstillings-kappe 39 hvormed motlageret 37 stilling på en spindel 40 kan forskyves for innstilling av fjærens 35 spenning. A reduction valve 30 is built into the inner chamber 28 of the filter cylinder 26. This reduction valve 30 is constructed in a known manner, compare for example the housing connection unit Syropak, type 327 from the applicant. The reduction valve 30 consists of a valve seat body 31 which, under the interposition of a sealing ring, is inserted sealingly into the opening 9 in the ring 8 of the connecting piece 7 and forms a valve seat. A control piston 32 extends through the valve seat body 31. if the end facing away from the valve seat is attached to a membrane 33. On the side of the membrane 23 that faces the valve seat body 31, a control chamber 34 is formed, which via a bore 35 in the control piston, is connected to the outlet 4 of the pipe piece 1, or the low-pressure side of the reducing valve. On the side facing away from the valve seat body 31, the diaphragm 23 is loaded with a spring 35a which extends through a spring chamber 36 and rests against an adjustable counter bearing 37. The annular spring chamber 36 extends through the inner space of the filter 26 and is designed with an annular shoulder 38 which, with the interposition of a sealing ring, rests tightly against the annular projection 25 in the opening 24 of the filter bowl 20. The end of the spring chamber 36 is led through the opening 24 and has an adjustment sleeve 39 with which the position of the counter bearing 37 on a spindle 40 can be shifted to adjust the spring's 35 tension.

Det foran beskrevne filterarmatur med integrert reduksjonsventil arbeider som følger. The previously described filter fitting with integrated reduction valve works as follows.

Når trykket i styrekammeret 34 på den ene side av membranen 2 3 er lik fjærens 36 trykk mot membranens 33 andre side, befinner reduksjonsventilen seg i trykkløs tilstand og styrestemplet 32 ligger tettende an mot ventilsetelegemet 31. Dersom trykket ved rørstykkets 1 uttak 4 faller og dermed også i styrekammeret 34, løftes styrestemplet 32 fra ventilsetelegemet 31 og det i rørstykkets 1 inntak 2 stående medium trenger gjennom ansatsens 6 ringrom 10 og gjennom filtersylinderens 26 i dennes indre rom 28 og videre derfra til rørstykkets 1 uttak 4. When the pressure in the control chamber 34 on one side of the diaphragm 2 3 is equal to the pressure of the spring 36 against the other side of the diaphragm 33, the reduction valve is in a depressurized state and the control piston 32 rests tightly against the valve seat body 31. If the pressure at the outlet 4 of the pipe piece 1 drops and thus also in the control chamber 34, the control piston 32 is lifted from the valve seat body 31 and the medium in the inlet 2 of the pipe piece 1 penetrates through the annular space 10 of the attachment 6 and through the filter cylinder 26 in its inner chamber 28 and from there to the outlet 4 of the pipe piece 1.

Filteranordningen og reduksjonsventilen 30 er anordnet på samme side av rørstykket 1 slik at filterarmaturen kun må være tilgjengelig fra en side. Filteranordningen kan løses på enkel måte, nemlig ved løsgjøring av ringmutteren 22 fra ansatsen 6, eksempelvis for utskift-ing av f iltersylinderen 26 som lett lar seg løse fra forbindelsesstykket 7. Etter utbygging av filtersylinderen 26 er reduksjonsventilen 30 tilgjengelig for vedlikeholds-arbeider eller reparasjon. The filter device and the reduction valve 30 are arranged on the same side of the pipe section 1 so that the filter fitting must only be accessible from one side. The filter device can be removed in a simple way, namely by loosening the ring nut 22 from the attachment 6, for example to replace the filter cylinder 26 which can be easily released from the connecting piece 7. After removing the filter cylinder 26, the reduction valve 30 is available for maintenance work or repair .

For innbyggingen eller bruken av den foran beskrevne filterarmatur anbefales en vertikal stilling som ved horisontalt forløp av rørledningen alltid vil fore-ligge". Ved ikke horisontalt forløpende rørledninger benyt-tes fordelaktig en ansats, utformet med dobbel vegg. Denne ansats er i den ene ende forbundet med filteranordningen og i den andre ende forbundet med rørstykket 1 via en løsbar skrueforbindelse. Herved forbinder den dobbeltveggede ansatses ytre rør, rørstykkets rør 1 inntak 2 med ringrommet 2 7 mellom filterskålen og filtersylinderen 2 6 og den dobbeltveggede ansatses indre rør er i en ende utformet med et forbindelsesstykket tilsvarende forbindelsesstykket 7 og forbinder filtersylinderens 26 indre rom 28 med rørstykkets 1 uttak 4. Den ende av den dobbeltveggede ansats som vender bort fra filteranordningen er via en løsbar skrueforbindelse forbundet med rørstykket 1 slik at den dobbeltveggede ansats, etter løsing av skrue-forbindelsen, kan dreies i den til enhver tid ønskede vinkel og her festes i forhold til rørstykket 1. En slik dobbeltvegget ansats er eksempelvis beskrevet i tids-skriftet Badu Schutzfilter fra firma Speck-Pumpen under typebetegnelse SF. For the installation or use of the filter fitting described above, a vertical position is recommended, which will always be present if the pipeline runs horizontally". In the case of non-horizontally running pipelines, an abutment, designed with a double wall, is advantageously used. This abutment is at one end connected to the filter device and at the other end connected to the pipe piece 1 via a detachable screw connection. Hereby, the double-walled fitting's outer pipe connects the pipe piece's pipe 1 intake 2 with the annulus 2 7 between the filter bowl and the filter cylinder 2 6 and the double-walled fitting's inner pipe is at one end designed with a connecting piece corresponding to the connecting piece 7 and connects the inner space 28 of the filter cylinder 26 with the outlet 4 of the pipe piece 1. The end of the double-walled shoulder that faces away from the filter device is connected to the pipe piece 1 via a detachable screw connection so that the double-walled shoulder, after loosening the screw - the connection, can be rotated in it at any time desired e angle and here is fixed in relation to the pipe piece 1. Such a double-walled approach is described, for example, in the magazine Badu Schutzfilter from the company Speck-Pumpen under the type designation SF.

Claims

1. Filter fitting for installation in a through-flow line for a liquid or gaseous medium, consisting of a piece of pipe (1) with an inlet (2) and an outlet (4), with a side attachment (6) connected to the inlet (2) to to which a filter bowl (20) can be connected for receiving an essentially ring-shaped filter cylinder (26), with a connection part (7) running coaxially in the shoulder (6) and connected to the outlet (4) to which the inner space of the filter cylinder (26) ( 28) can be connected, as well as at least one pressure gauge connection (11), CHARACTERIZED IN THAT the connection piece (7) on the side facing away from the filter cylinder (26) has one opening (9) for receiving a reduction valve (30) and that the filter bowl (20) on the opposite side of the connecting piece (7) has an opening (24) for inserting the reduction valve (30).

2. Filter fitting according to claim 1, CHARACTERIZED IN THAT the connecting piece is designed in a double-walled, angled shoulder whose inner tube connects the inner space (28) of the filter cylinder (26) with the outlet (4) and whose outer tube connects the intake (2) with that between the filter bowl (20) and the filter cylinder (26) formed an annular space (27), and that the attachment on the end facing away from the filter bowl (20) is connected to the pipe piece (1) via a detachable and in a detached state at an angle in relation to the pipe piece ( 1) adjustable connection part.

3. Filter fitting according to claims 1-2, CHARACTERIZED IN THAT the filter bowl (2) opposite the connecting piece (7) has a guide (23) for the filter cylinder (26).

4. Filter fitting according to claims 1-3, CHARACTERIZED IN THAT the reduction valve (30) has, in a known manner, a valve seat body (31), a control piston (32) that interacts with it and is connected to a membrane (33), a control chamber filled with the outlet pressure (34) on one side of the diaphragm (33) a spring (35) which loads the diaphragm (33) on the other side, and a spring chamber (36) with a setting device (39) for setting the spring tension, and that the valve seat body (31 ) is inserted sealingly into the opening (9) of the connecting piece (7).

5. Filter fitting according to claim 4, CHARACTERIZED IN THAT the control piston (32) has a through bore (35) which connects the outlet (4) with the control chamber (34).

6. Filter fitting according to claims 4-5, CHARACTERIZED IN THAT the spring chamber (36) on the end facing away from the membrane (33) has an annular shoulder (38), that the spring chamber (36) is led through the opening (24) in the filter bowl (20) ), and that the opening (24) has an annular projection (25) against which the ring shoulder (38) of the spring chamber (36) rests sealingly.