NO136176B - - Google Patents

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Publication number
NO136176B
NO136176B NO2366/73A NO236673A NO136176B NO 136176 B NO136176 B NO 136176B NO 2366/73 A NO2366/73 A NO 2366/73A NO 236673 A NO236673 A NO 236673A NO 136176 B NO136176 B NO 136176B
Authority
NO
Norway
Prior art keywords
valve
projection
seating surfaces
seat surface
annular
Prior art date
Application number
NO2366/73A
Other languages
Norwegian (no)
Other versions
NO136176C (en
Inventor
G Schwinghammer
Original Assignee
Holstein & Kappert Maschf
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 Holstein & Kappert Maschf filed Critical Holstein & Kappert Maschf
Publication of NO136176B publication Critical patent/NO136176B/no
Publication of NO136176C publication Critical patent/NO136176C/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D37/00Processes of filtration
    • B01D37/02Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • 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
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • B01D29/15Supported filter elements arranged for inward flow filtration
    • 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
    • B01D29/50Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • 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
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/66Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • 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
    • B01D29/88Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/04Supports for the filtering elements
    • B01D2201/043Filter tubes connected to plates
    • B01D2201/0446Filter tubes connected to plates suspended from plates at the upper side of the filter elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Lift Valve (AREA)

Description

Anordning ved ventillukkeorgan, avpasset til å samvirke med to konsentriske seteflater. Device by valve closing member, adapted to cooperate with two concentric seating surfaces.

Denne oppfinnelse vedrører ventil-lukkeorganer, særlig ved ventilinnretninger, til å regulere en væskestrøm. Ved sådanne innretninger er tilfellet ofte at et enkelt ventillukkeorgan i form av en skive er avpasset til å samvirke med to ringformede seteflater som er anordnet inne i hver-andre om en akse i hvis retning seteflatene kan beveges i forhold til hinanen. Avhengig av retningen av den relative be-vegelse løftes ventilskiven fra den ene eller annen av seteflatene, så den ene eller annen av to strømforbindelser kan opprettes med rommet mellom seteflatene. En av disse strømforbindelser kan f. eks. være forbundet med en kilde for pressfluidum og den annen med atmosfæren. I lukkestillingen kreves det at ventilskiven leg-ger an på begge seteflatene for å avbryte begge strømforbindelser, men med mindre seteflatene er helt parallelle, er lekning til-bøyelig til å finne sted. This invention relates to valve closing means, particularly in valve devices, to regulate a liquid flow. With such devices, it is often the case that a single valve closing member in the form of a disk is adapted to cooperate with two annular seating surfaces which are arranged inside each other about an axis in which direction the seating surfaces can be moved relative to the rear. Depending on the direction of the relative movement, the valve disc is lifted from one or the other of the seating surfaces, so that one or the other of two current connections can be established with the space between the seating surfaces. One of these power connections can e.g. be connected to one source of pressure fluid and the other to the atmosphere. In the closed position, the valve disk is required to rest on both seating surfaces to interrupt both current connections, but unless the seating surfaces are completely parallel, leakage is likely to occur.

I henhold til oppfinnelsen omfatter et According to the invention, a

ventillukkeorgan en ventilskive som er avpasset til å komme i anlegg med den ene eller annen eller begge de to ringformede seteflater som er anordnet den ene inne i den annen om en akse i hvis retning seteflatene er relativt bevegelige og har en elastisk flate med et sfærisk formet fremspring for anlegg mot den indre av to seteflater, idet fremspringet er omgitt av et ringflateparti for å få anlegg mot den ytre seteflate. Da fremspringet er anordnet i henhold til oppfinnelsen, vil lekning fremdeles hindres i lukkestillingen, selv om seteflatene er helt parallelle. Derfor valve closing means a valve disk adapted to come into contact with one or the other or both of the two annular seating surfaces which are arranged one inside the other about an axis in which direction the seating surfaces are relatively movable and has an elastic surface with a spherically shaped projection for abutment against the inner of two seat surfaces, the projection being surrounded by an annular surface portion to obtain abutment against the outer seat surface. As the projection is arranged according to the invention, leakage will still be prevented in the closed position, even if the seat surfaces are completely parallel. Therefore

kan unøyaktigheter i fremstillingen tåles, og mindre syring er nødvendig for å sikre at seteflatene forblir absolutt i vinkel. manufacturing inaccuracies can be tolerated, and less acidizing is required to ensure that the seating surfaces remain absolutely at an angle.

Ved en foretrukken utførelsesform har fremspringet form av en kulekalott og det omgivende ringflateparti er flatt og nær ved fremspringet. In a preferred embodiment, the projection has the shape of a spherical cap and the surrounding annular surface portion is flat and close to the projection.

Oppfinnelsen skal forklares ved eks-empler i henhold til vedlagte skjematiske tegning. The invention shall be explained by means of examples according to the attached schematic drawing.

Fig. 1 viser i snitt det vesentlige parti av en kjent form for membranpåvirket selvlukkende ventilinnretning. Fig. 2 er en del av fig. 1 og viser i overdreven grad følgen av skjevhet og fig. 3 viser den samme del av fig. 2, men med en ventilskive i henhold til oppfinnelsen. Fig. 1 shows in section the essential part of a known form of diaphragm-actuated self-closing valve device. Fig. 2 is a part of fig. 1 and shows to an excessive degree the consequence of bias and fig. 3 shows the same part of fig. 2, but with a valve disc according to the invention.

Den viste selvlukkende ventilinnretning omfatter et hus 11 som har en ytre ringformet seteflate 12 mellom kammerne 13 og 14 som er dannet i huset. En mem-bran 15, som omkring sin ytterkant er klemt fast mellom partier av huset, at-skiller kammeret 14 fra et tredje kammer 16 og har et membranfølgende sett 17 med en hul stang 18. Den øvre ende av denne stang stikker inn i kammeret 14 og ender i en ringformet seteflate 19 og de to seteflater 12 og 19 befinner seg omkring samme akse, og nær ved den nedre ende (ikke vist) betraktes stangen som værende åpen til kammeret 16. The self-closing valve device shown comprises a housing 11 which has an outer ring-shaped seating surface 12 between the chambers 13 and 14 which are formed in the housing. A membrane 15, which around its outer edge is clamped between parts of the housing, separates the chamber 14 from a third chamber 16 and has a membrane-following set 17 with a hollow rod 18. The upper end of this rod protrudes into the chamber 14 and ends in an annular seating surface 19 and the two seating surfaces 12 and 19 are located around the same axis, and close to the lower end (not shown) the rod is considered to be open to the chamber 16.

Som vist i fig. 1 og 2 er et ventillukkeorgan anordnet i kammeret 13 for å samvirke med de to ringseteflater 12 og 19 og har form av en med elastisk flate forsynt sirkulær ventilskive 20. Denne er utført av et tynt metallegeme med flate lag av syntetisk gummi eller lignende elastisk materiale fast forbundet med begge sider derav. As shown in fig. 1 and 2, a valve closing member is arranged in the chamber 13 to cooperate with the two annular seating surfaces 12 and 19 and has the form of a circular valve disc 20 provided with an elastic surface. This is made of a thin metal body with flat layers of synthetic rubber or similar elastic material firmly connected to both sides thereof.

Avhengig av retningen av kraftvirk-ningen som utøves på det membranføl-gende sete, vil stangen 18 sammen med den indre seteflate 19 beveges i forhold til den ytre seteflate 12 enten oppover eller nedover. I første tilfelle er ventilskiven løftet fra seteflaten 12 så der opprettes en forbindelse mellom kammeret 13 og kammeret 14 gjennom rommet mellom de to seteflater. I siste tilfelle (nedover) er ventilskiven løftet fra seteflaten 19 så den oppretter en forbindelse mellom kammeret 14 og kammeret 16 gjennom rommet mellom seteflatene og det indre av den hule stang 18. En selvlukkende ventilinnretning av den omtalte og viste art skal anvendes ved graderte utløsningsforde-lingsventiler for bremseapparater ved jernbanevogner som arbeider med trykkluft, hvor kammeret 14 står i forbindelse med en kilde for trykkluft og kammeret 16 med atmosfæren. Depending on the direction of the force exerted on the membrane-following seat, the rod 18 together with the inner seat surface 19 will be moved in relation to the outer seat surface 12 either upwards or downwards. In the first case, the valve disc is lifted from the seat surface 12 so that a connection is established between the chamber 13 and the chamber 14 through the space between the two seat surfaces. In the last case (downwards) the valve disk is lifted from the seat surface 19 so that it creates a connection between the chamber 14 and the chamber 16 through the space between the seat surfaces and the interior of the hollow rod 18. A self-closing valve device of the type mentioned and shown must be used for graded release means -ling valves for braking devices in railcars that work with compressed air, where the chamber 14 is in connection with a source of compressed air and the chamber 16 with the atmosphere.

Den overdrevne skjevestilling av stangen som vist i fig. 2 illustrerer hvordan lekning kan inntre i lukkestillingen hvis seteflatene ikke er helt parallelle. Bruken av et bløtt elastisk materiale for side-flatene av ventilskiven kunne innstille seg etter en viss skjevhetsgrad ved å tillate seteflatene å legge seg passende an, idet det anvendes innsnitt, men denne forholds-regel er tilbøyelig til å medføre et tap av følsomheten i ventilorganet, og et hardere materiale som f. eks. hard syntetisk gummi eller nylon er å foretrekke. The excessive skewing of the rod as shown in fig. 2 illustrates how leakage can occur in the closed position if the seat surfaces are not completely parallel. The use of a soft elastic material for the side surfaces of the valve disk could adjust for a certain degree of bias by allowing the seating surfaces to fit appropriately, using incisions, but this precaution is likely to result in a loss of sensitivity in the valve body , and a harder material such as e.g. hard synthetic rubber or nylon is preferred.

Som vist i fig. 3 er den elastiske flate på siden av ventilskiven 20, som samvirker med seteflaten, dannet i henhold til oppfinnelsen, i ett med et stykke sentralt anordnet fremspring 21, i form av en kile-formet topp for anlegg mot den indre seteflate 19. Kanten av fremspringet går over i et omgivende flatt ringformet parti 22 som får anlegg mot den ytre ringformede seteflate 12. Diameteren av den sirkel som beskrives av fremspringets kant, er større enn ytterdiameteren av den indre seteflate 19 og mindre enn diameteren av den ytre seteflate 12, så at, forutsatt en viss frihet i sidebevegelse, vil ventilskiven være selvsentrerende på den indre seteflate 19. Som det vil fremgå klart av fig. 3 vil denne form for ventilskiven innstille seg etter betydelig skjevhet uten lekning. As shown in fig. 3, the elastic surface on the side of the valve disc 20, which cooperates with the seat surface, is formed according to the invention, in one with a piece of centrally arranged projection 21, in the form of a wedge-shaped top for contact with the inner seat surface 19. The edge of the projection transitions into a surrounding flat annular portion 22 which bears against the outer annular seat surface 12. The diameter of the circle described by the edge of the projection is greater than the outer diameter of the inner seat surface 19 and smaller than the diameter of the outer seat surface 12, so that, assuming a certain freedom of lateral movement, the valve disk will be self-centering on the inner seat surface 19. As will be clear from fig. 3, this shape of the valve disc will settle after significant distortion without leakage.

Claims (2)

1. Ventillukkeorgan, særlig ved ventilinnretninger til å regulere en væskestrøm omfattende en ventilskive avpasset til anlegg mot den ene eller annen eller begge ringseteflater som er anordnet inne i hin-annen om en akse, i hvis retning seteflatene er relativt bevegelige, karakterisert ved at der på et flatt elastisk lukke-organ anordnes et fremspring (21) av form som en kulekalott avpasset til anlegg mot den indre (19) av de to seteflater (12, 19), idet fremspringet (21) er omgitt av et ringformet parti (22) for anlegg mot den ytre seteflate (12).1. Valve closing device, particularly in valve devices for regulating a liquid flow comprising a valve disk adapted to contact one or the other or both annular seating surfaces which are arranged inside each other about an axis, in which direction the seating surfaces are relatively movable, characterized in that there a projection (21) shaped like a ball cap is arranged on a flat elastic closure member adapted to abut against the inner (19) of the two seat surfaces (12, 19), the projection (21) being surrounded by an annular part (22) ) for contact with the outer seat surface (12). 2. Selvlukkende ventilinnretning for bremseapparater for jernbanevogner hvis hjulbremseapparater arbeider ved trykkluft, karakterisert ved anvendelsen av et ventillukkeorgan (21, 22) i henhold til på-stand 1 eller 2.2. Self-closing valve device for braking devices for railway vehicles whose wheel braking devices work with compressed air, characterized by the use of a valve closing device (21, 22) according to claim 1 or 2.
NO2366/73A 1972-06-08 1973-06-06 PROCEDURES FOR REMOVING AND REMOVING FILTERED SOLID FROM BOILER FILTERS. NO136176C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2227821A DE2227821B2 (en) 1972-06-08 1972-06-08 Process for removing and discharging filter residues from boiler litter

Publications (2)

Publication Number Publication Date
NO136176B true NO136176B (en) 1977-04-25
NO136176C NO136176C (en) 1977-08-03

Family

ID=5847122

Family Applications (1)

Application Number Title Priority Date Filing Date
NO2366/73A NO136176C (en) 1972-06-08 1973-06-06 PROCEDURES FOR REMOVING AND REMOVING FILTERED SOLID FROM BOILER FILTERS.

Country Status (6)

Country Link
AT (1) AT334920B (en)
CH (1) CH569503A5 (en)
DE (1) DE2227821B2 (en)
DK (1) DK146677C (en)
GB (1) GB1438793A (en)
NO (1) NO136176C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2434343C3 (en) * 1974-07-17 1983-12-08 Holstein Und Kappert Gmbh, 4600 Dortmund Process for low-oxygen precoating of filter aids on filter surfaces
CA1190483A (en) * 1977-06-22 1985-07-16 Kostas S. Arvanitakis Vertical filter system
CH627089A5 (en) 1977-12-16 1981-12-31 Chemap Ag
DE2923010A1 (en) * 1979-06-07 1980-12-18 Interliz Anstalt FLOODING FILTRATION DEVICE FOR FILTERING TURBID LIQUIDS AND FILTRATION METHOD WITH SUCH A DEVICE
DE3722238A1 (en) * 1987-07-06 1989-01-19 Faudi Feinbau METHOD FOR CLEANING FILTER CANDLES IN precoat filters and DEVICE FOR IMPLEMENTING THE METHOD
DE19837569B4 (en) 1998-08-19 2006-07-06 Khs Ag Method for cleaning filter candles of a candle filter
CN114235730A (en) * 2022-02-21 2022-03-25 中国科学院烟台海岸带研究所 Seawater nutrient salt online monitoring system and seawater nutrient salt detection method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969655C (en) * 1951-05-19 1958-07-24 Hans Widmaier Switches for electrical circuit diagrams can be locked in different positions
US2780363A (en) * 1952-12-22 1957-02-05 Infilco Inc Apparatus and process for washing diatomite type filters
DE1536779A1 (en) * 1966-11-10 1970-02-26 Enzinger Union Werke Ag Precoat filters for liquids, e.g. Beverages
DE1536783C3 (en) * 1967-05-30 1974-02-28 Enzinger-Union-Werke Ag, 6800 Mannheim Process for removing the filter residue formed from kieselguhr and turbid substances from boiler filters
DE1536782A1 (en) * 1967-05-30 1970-02-12 Enzinger Union Werke Ag Method and device for removing the residual liquid remaining in a tank filter after filtration
CH481669A (en) * 1967-07-12 1969-11-30 Filtrox Maschb Ag Process for cleaning a filter device with built-in filter and device for carrying out the process
DE1972025U (en) * 1967-08-12 1967-11-09 Sack Gmbh Maschf DEVICE FOR CLEANING LIQUIDS, IN PARTICULAR BOHROELEN OD. DGL.

Also Published As

Publication number Publication date
DK146677C (en) 1984-06-12
GB1438793A (en) 1976-06-09
DE2227821A1 (en) 1973-12-20
AT334920B (en) 1977-02-10
CH569503A5 (en) 1975-11-28
DK146677B (en) 1983-12-05
NO136176C (en) 1977-08-03
ATA437273A (en) 1976-06-15
DE2227821B2 (en) 1980-02-28

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