NO318192B1 - A gate valve. - Google Patents
A gate valve. Download PDFInfo
- Publication number
- NO318192B1 NO318192B1 NO19985763A NO985763A NO318192B1 NO 318192 B1 NO318192 B1 NO 318192B1 NO 19985763 A NO19985763 A NO 19985763A NO 985763 A NO985763 A NO 985763A NO 318192 B1 NO318192 B1 NO 318192B1
- Authority
- NO
- Norway
- Prior art keywords
- sluice
- lock
- casing
- guides
- flow
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 5
- 229920006324 polyoxymethylene Polymers 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 2
- -1 polyoxymethylene Polymers 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/28—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with resilient valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
Landscapes
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Magnetically Actuated Valves (AREA)
- Electronic Switches (AREA)
- Valve Device For Special Equipments (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Fluid-Driven Valves (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Connection Of Plates (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Control Of Combustion (AREA)
- Lift Valve (AREA)
- Clamps And Clips (AREA)
- Slide Fasteners (AREA)
- Pens And Brushes (AREA)
- Mechanically-Actuated Valves (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Compressor (AREA)
- Seal Device For Vehicle (AREA)
- Multiple-Way Valves (AREA)
- Float Valves (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
Description
Oppfinnelsen vedrører en sluseventil med et ventilhus og en sluse, hvor slusen er forskyvbart ført i styrespor i huset som strekker seg på tvers av strømningsretningen ved hjelp av to sideveis og forholdsvis kort utragende styringer og har en avtettende gummielastisk ommantling. The invention relates to a sluice valve with a valve housing and a sluice, where the sluice is displaceably guided in guide grooves in the housing that extend across the direction of flow by means of two lateral and relatively short protruding guides and has a sealing rubber-elastic casing.
Hittil er de til en betjeningsspindel koblede sluser i slike sluseventiler styrt sideveis i høyde med tilkoblingen til betjeningsspindelen, idet en påvulkanisert ommantling gir den ønskede kiletetning. Det har nå vist seg at en slik styring belastningsbetinget gir en skråstilling av slusen med tilhørende ugunstige kraftoverføirngsforhold, noe som fremfor alt ved høyere betjeningstall gir tidlig slitasje. Dertil kommer at de gummi-elastiske mantelområder ved glideflatene er forholdsmessig tynne, av funksjonstekniske årsaker, og at det også her likeledes skjer en hurtig nedsliting. Dessuten er selve slusen utsatt for korrosjon utenfor gummiommantlingen, noe som ytterligere reduserer levetiden. Until now, the sluice gates in such sluice valves connected to an operating spindle have been controlled laterally at the height of the connection to the operating spindle, as a vulcanized casing provides the desired wedge seal. It has now been shown that, depending on the load, such a control results in an inclined position of the lock with associated unfavorable power transmission conditions, which above all at higher operating numbers causes early wear. In addition, the rubber-elastic jacket areas at the sliding surfaces are relatively thin, for technical functional reasons, and that rapid wear and tear also occurs here. In addition, the lock itself is exposed to corrosion outside the rubber casing, which further reduces its service life.
Fra EP-A-0 171693 er det kjent en ventil med en skive som er forskyvbar i forløpende styrespor i ventilhuset og som er anordnet på tvers av strømningsretningen ved hjelp av sideveis utragende styringer og har en avtettende gummielastisk ommantling hvor føringene muliggjør en føring av slusen over hele den samlede åpnings- og lukkevandring. Styringene er anordnet til å omfatte høyden til fiatemidten av skivelegemet. Styringene er påsatt kunststoff. From EP-A-0 171693 it is known a valve with a disc which is displaceable in continuous guide grooves in the valve housing and which is arranged across the direction of flow by means of laterally projecting guides and has a sealing rubber-elastic sheath where the guides enable the sluice to be guided over the entire opening and closing walk. The guides are arranged to include the height of the fiat center of the disc body. The controls are fitted with plastic.
I EP 0 146 112 A foreslås det en sluse for en sluseventil, hvilken sluse for korrosjonsbeskyttelse er forsynt med en allsidig gummielastisk omhylling, mens den for sidestyring har på smalsidene anordnede styrespor som glir på husfaste styrelister. For å bedre glideegenskapene settes det i tillegg inn en spesiell glidesko i styresporene. Dette krever forholdsmessig lange styrespor for oppnåelse av en tilsvarende stabil avstøtting. Heller ikke her unngår man en belastningsbetinget skråstilling av slusen, og slitasjegraden er relativt høy. I tillegg fordyres fremstillingen som følge av den nødvendige formsluttende glideskoinnsats. In EP 0 146 112 A, a sluice is proposed for a sluice valve, which sluice for corrosion protection is provided with a versatile rubber-elastic casing, while for side control it has guide grooves arranged on the narrow sides that slide on fixed guide strips. In order to improve the sliding properties, a special sliding shoe is also inserted into the guide grooves. This requires relatively long guide tracks to achieve a correspondingly stable suspension. Here too, a strain-related tilting of the lock is not avoided, and the degree of wear and tear is relatively high. In addition, the production becomes more expensive as a result of the necessary form-fitting sliding shoe insert.
Hensikten med foreliggende oppfinnelse er å tilveiebringe en sluseventil av den innledningsvis nevnte type, hvilken ventil kan fremstilles på en relativ enkel måte, men allikevel utmerker seg ved høy korrosjonsbeskyttelse, god glideføring og fremfor alt høy slitasjefasthet. The purpose of the present invention is to provide a sluice valve of the type mentioned at the outset, which valve can be produced in a relatively simple manner, but is nevertheless characterized by high corrosion protection, good sliding and, above all, high wear resistance.
Ifølge oppfinnelsen oppnås dette ved at styringene er sentralt anbrakt i forhold til deres forskyvningsretning relativt høyden på flatemidten på sperreflaten på slusen vendt mot forskyvningsplanet i strømningsretningen, og slusens ommantling danner en sluseomhylning på en i og for seg kjent måte. According to the invention, this is achieved by the guides being centrally located in relation to their displacement direction relative to the height of the center of the surface of the barrier surface on the lock facing the displacement plane in the direction of flow, and the lock's casing forms a lock casing in a manner known per se.
Ved at styringene er forskjøvet nedover sammenlignet med hva tilfellet er ved de kjente sluser, blir føringen plassert i høyde med angrepspunktet til slusens trykkraftresultant, slik at man praktisk talt uten merkostnad derved hindrer en belastningsbetinget skråstilling av slusen. Det er nok med en forholdsmessig kort føring, som allikevel gir en fremragende slitasjefasthet i slusesystemet. Den føringsparallelle rettstilling av slusen medfører dessuten en lett bevegelig glideføring, fordi klemvirkninger og lignende ikke forekommer. De derved reduserte betjeningsmomenter øker dessuten slitasjefastheten. Den lukkede ommantling av slusen beskytter selve sluselegemet, som er av støpejern, særlig sfærisk støpejern, mot korrosjon. Ommantlingen består hensiktsmessig av en kautsjuk med gode eldrings- og temperaturbestandighetsegenskaper. En egnet kautsjuk er eksempelvis EPDM (etylen-propylen-kautsjuk) eller NBR (nitrilkautsjuk). By the fact that the controls are shifted downwards compared to what is the case with the known locks, the guide is placed at the height of the point of attack of the lock's compressive force resultant, so that practically at no additional cost a load-related tilting of the lock is thereby prevented. It is enough with a relatively short guide, which nevertheless provides excellent wear resistance in the lock system. The straightening of the lock parallel to the guide also results in an easily movable sliding guide, because clamping effects and the like do not occur. The thereby reduced operating torques also increase wear resistance. The closed casing of the lock protects the lock body itself, which is made of cast iron, especially spherical cast iron, against corrosion. The casing suitably consists of a rubber with good aging and temperature resistance properties. A suitable rubber is, for example, EPDM (ethylene propylene rubber) or NBR (nitrile rubber).
For også å oppnå høy slitasjefasthet i føringsområdet er det på styringene påsatt styringskapper av slitasjefast, temperaturbestandig plast, eksempelvis POM (polyoksymetylen). Disse kapper hindrer en for tidlig nedsliting av ommantlingen i området ved styringene og kan etter behov byttes ut på en enkelt måte. In order to also achieve high wear resistance in the guide area, the guides are fitted with guide covers made of wear-resistant, temperature-resistant plastic, for example POM (polyoxymethylene). These covers prevent premature wear and tear of the casing in the area of the controls and can be easily replaced as needed.
Oppfinnelsen skal nå forklares nærmere under henvisning til tegningene hvor The invention will now be explained in more detail with reference to the drawings where
Figur 1 og 2 viser en sluseventil ifølge oppfinnelsen i et aksenormalt henholdsvis et aksialt snitt, idet slusen i venstre figurhalvdel er vist i en sperrestilling og i høyre figurhalvdel er vist i åpen stilling, og Figur 3 viser et utsnitt av slusestyringen, etter linjen III-III i figur 1, og i større Figures 1 and 2 show a sluice valve according to the invention in an axis normal and an axial section respectively, with the sluice in the left half of the figure being shown in a blocked position and in the right half of the figure being shown in the open position, and Figure 3 showing a section of the sluice control, along the line III- III in figure 1, and in larger
målestokk. yardstick.
En sluseventil 1 innbefatter et ventilhus 2 med en påsatt overdel 3 samt en forstillbar sluse 5 som kan forskyves ved hjelp av en i overdelen 3 dreibart lagret betjeningsspindel 4. Slusen 5 kan ved hjelp av spindelen 4 beveges fra en nedre sperrestilling (venstre halvdel i figur 1 og 2) til en øvre åpen stilling (høyre halvdel i figur 1 og 2), på tvers av strømningsretningen S, som bestemt av gjennomløpet 6 i huset 2. Slusen 5 har to sideveis utragende styringer 7 som går i inngrep med i forskyvningsretningen R forløpende styrespor 8 i ventilhuset 2. Styringene 7 er plassert i høyde med flatemidten til slusens 5 i gjennomstrømningsretningen S mot forskyvningsplanet E projiserte sperreflate F til slusen 5, slik at mot slusen virkende strømningsmedium-trykkrefter ikke kan utøve noen kipp-momenter som vil kunne gi en skråstilling av slussen. Derved unngås slitasje som følge av slike skråstillinger. A sluice valve 1 includes a valve body 2 with an attached upper part 3 as well as an adjustable sluice 5 which can be moved by means of an operating spindle 4 rotatably stored in the upper part 3. The sluice 5 can be moved with the help of the spindle 4 from a lower locking position (left half in figure 1 and 2) to an upper open position (right half in figures 1 and 2), across the flow direction S, as determined by the passage 6 in the housing 2. The sluice 5 has two laterally projecting guides 7 which engage in the displacement direction R continuous guide track 8 in the valve housing 2. The guides 7 are placed at a height with the center of the surface of the lock 5 in the flow direction S towards the displacement plane E projected blocking surface F of the lock 5, so that flow medium pressure forces acting against the lock cannot exert any tilting moments which could give an inclined position of the lock. This avoids wear and tear as a result of such inclined positions.
Som korrosjonsbeskyttelse er slusen 5 forsynt med en hele sluselegemet omhyllende ommantling 9 av EPDM eller eksempelvis NBR. I tillegg er for bedring av glideegenskapene og for øking av slitasjefastheten styringskappen 10 av POM satt på styringene 7. As corrosion protection, the lock 5 is provided with a casing 9 of EPDM or, for example, NBR, which surrounds the entire lock body. In addition, to improve the sliding properties and to increase the wear resistance, the POM control cover 10 is placed on the controls 7.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0210897A AT405758B (en) | 1997-12-15 | 1997-12-15 | SLIDING VALVE |
Publications (3)
Publication Number | Publication Date |
---|---|
NO985763D0 NO985763D0 (en) | 1998-12-09 |
NO985763L NO985763L (en) | 1999-06-16 |
NO318192B1 true NO318192B1 (en) | 2005-02-14 |
Family
ID=3527943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO19985763A NO318192B1 (en) | 1997-12-15 | 1998-12-09 | A gate valve. |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0926410B1 (en) |
AT (2) | AT405758B (en) |
BG (1) | BG63318B1 (en) |
CZ (1) | CZ293177B6 (en) |
DE (1) | DE59810080D1 (en) |
DK (1) | DK0926410T3 (en) |
ES (1) | ES2207810T3 (en) |
HR (1) | HRP980611B1 (en) |
HU (1) | HU224604B1 (en) |
NO (1) | NO318192B1 (en) |
PL (1) | PL188726B1 (en) |
PT (1) | PT926410E (en) |
RO (1) | RO117934B1 (en) |
SI (1) | SI9800304B (en) |
SK (1) | SK284355B6 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2846392B1 (en) * | 2002-10-23 | 2005-09-02 | Saint Gobain Pont A Mousson | STOP CORNER, AND CORRESPONDING STOP VALVE |
NO322877B1 (en) * | 2003-06-06 | 2006-12-18 | Danfoss Esco As | A gate valve |
CN101865299B (en) * | 2010-07-01 | 2012-07-04 | 河南理工大学 | Flat wedge floating type ceramic gate valve |
WO2013010546A1 (en) | 2011-07-15 | 2013-01-24 | Avk Holding A/S | Sliding valve member comprising guide means |
AT13520U1 (en) * | 2012-03-29 | 2014-02-15 | E Hawle Armaturenwerke Gmbh | Shut-off element for a shut-off valve |
EP2746629A1 (en) | 2012-12-21 | 2014-06-25 | AVK Holding A/S | Valve wedge for a slide valve |
RU174952U1 (en) * | 2017-03-20 | 2017-11-13 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | LATCH WITH A CONIC LOCK |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2037476C3 (en) * | 1970-07-29 | 1979-09-06 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Hollow slide for an electrical circuit breaker |
US4532957A (en) * | 1983-06-24 | 1985-08-06 | United States Pipe And Foundry Company | Guides for gate valves |
DE3345133A1 (en) * | 1983-12-14 | 1985-09-26 | Bopp & Reuther Gmbh, 6800 Mannheim | LOCKING WEDGE FOR LOCKING VALVES |
DE3428485A1 (en) * | 1984-08-02 | 1986-02-20 | Bopp & Reuther Gmbh, 6800 Mannheim | LOCKING WEDGE FOR LOCKING VALVES |
-
1997
- 1997-12-15 AT AT0210897A patent/AT405758B/en not_active IP Right Cessation
-
1998
- 1998-12-02 PT PT98890355T patent/PT926410E/en unknown
- 1998-12-02 DE DE59810080T patent/DE59810080D1/en not_active Expired - Lifetime
- 1998-12-02 EP EP98890355A patent/EP0926410B1/en not_active Expired - Lifetime
- 1998-12-02 AT AT98890355T patent/ATE253700T1/en active
- 1998-12-02 DK DK98890355T patent/DK0926410T3/en active
- 1998-12-02 ES ES98890355T patent/ES2207810T3/en not_active Expired - Lifetime
- 1998-12-03 HR HR980611A patent/HRP980611B1/en not_active IP Right Cessation
- 1998-12-07 SI SI9800304A patent/SI9800304B/en not_active IP Right Cessation
- 1998-12-09 NO NO19985763A patent/NO318192B1/en unknown
- 1998-12-10 RO RO98-01667A patent/RO117934B1/en unknown
- 1998-12-11 SK SK1713-98A patent/SK284355B6/en unknown
- 1998-12-11 HU HU9802887A patent/HU224604B1/en active IP Right Grant
- 1998-12-14 BG BG103012A patent/BG63318B1/en unknown
- 1998-12-14 PL PL98330274A patent/PL188726B1/en unknown
- 1998-12-15 CZ CZ19984146A patent/CZ293177B6/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO985763L (en) | 1999-06-16 |
SK284355B6 (en) | 2005-02-04 |
HUP9802887A3 (en) | 2000-08-28 |
EP0926410A2 (en) | 1999-06-30 |
CZ414698A3 (en) | 2000-07-12 |
ES2207810T3 (en) | 2004-06-01 |
AT405758B (en) | 1999-11-25 |
HU224604B1 (en) | 2005-11-28 |
ATA210897A (en) | 1999-03-15 |
HU9802887D0 (en) | 1999-02-01 |
EP0926410B1 (en) | 2003-11-05 |
CZ293177B6 (en) | 2004-02-18 |
RO117934B1 (en) | 2002-09-30 |
EP0926410A3 (en) | 1999-12-01 |
PL330274A1 (en) | 1999-06-21 |
SI9800304A (en) | 1999-06-30 |
DE59810080D1 (en) | 2003-12-11 |
HUP9802887A2 (en) | 2000-04-28 |
HRP980611A2 (en) | 1999-10-31 |
ATE253700T1 (en) | 2003-11-15 |
NO985763D0 (en) | 1998-12-09 |
BG103012A (en) | 1999-07-30 |
DK0926410T3 (en) | 2004-03-08 |
PL188726B1 (en) | 2005-04-29 |
BG63318B1 (en) | 2001-09-28 |
SK171398A3 (en) | 1999-07-12 |
PT926410E (en) | 2004-02-27 |
HRP980611B1 (en) | 2001-10-31 |
SI9800304B (en) | 2008-02-29 |
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