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
Links
- 239000007788 liquid Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000013013 elastic material Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters 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
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters 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
- B01D29/52—Filters 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters 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
- B01D29/94—Filters 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
- B01D2201/043—Filter tubes connected to plates
- B01D2201/0446—Filter 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)
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)
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)
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. |
-
1972
- 1972-06-08 DE DE2227821A patent/DE2227821B2/en not_active Ceased
-
1973
- 1973-05-18 AT AT437273A patent/AT334920B/en not_active IP Right Cessation
- 1973-06-04 DK DK307173A patent/DK146677C/en active
- 1973-06-06 NO NO2366/73A patent/NO136176C/en unknown
- 1973-06-07 GB GB2711473A patent/GB1438793A/en not_active Expired
- 1973-06-07 CH CH830573A patent/CH569503A5/xx not_active IP Right Cessation
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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