NO793090L - Butterfly valves. - Google Patents
Butterfly valves.Info
- Publication number
- NO793090L NO793090L NO793090A NO793090A NO793090L NO 793090 L NO793090 L NO 793090L NO 793090 A NO793090 A NO 793090A NO 793090 A NO793090 A NO 793090A NO 793090 L NO793090 L NO 793090L
- Authority
- NO
- Norway
- Prior art keywords
- valve
- valve body
- counterweight
- seat
- butterfly
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009958 sewing Methods 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/24—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/004—Valve arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lift Valve (AREA)
- Sliding Valves (AREA)
- Safety Valves (AREA)
Description
Foreliggende oppfinnelse gjelder en spjeldventil som omfatterThe present invention relates to a butterfly valve which comprises
et ventil-legeme anordnet for å ligge an mot et ventilsete i et ventilhus i lukket ventilstilling, samt montert for å åpnes under påvirkning av et overtrykk mot den side av ventil-legemet som vender mot ventilsetet. a valve body arranged to rest against a valve seat in a valve housing in the closed valve position, and mounted to open under the influence of an overpressure towards the side of the valve body facing the valve seat.
Når man skal tømme turbinen i en hydraulisk maskin av den artWhen emptying the turbine in a hydraulic machine of that nature
som kalles "isogyre" (registrert varemerke) og er beskrevet i sveitsisk patentskrift nr. 560 323, avskilles det rom hvor turbinhjulet roterer fra det indre av maskinhuset, f.eks. ved hjelp av en belgventil, med det formål å unngå energitap når'maskinen bringes til å fungere som pumpe. Inntaket til turbinen lukkes, fortrinnsvis ved hjelp av en ventil som åpner av seg selv i det tilfelle det foreligger et overtrykk på turbinsiden, f.eks. som en følge av en vilkårlig åpning av den ovenfor nevnte belgventil. which is called "isogyre" (registered trademark) and is described in Swiss patent document no. 560 323, the space where the turbine wheel rotates is separated from the interior of the engine housing, e.g. by means of a bellows valve, with the aim of avoiding energy loss when the machine is brought to work as a pump. The intake to the turbine is closed, preferably by means of a valve that opens by itself in the event that there is an overpressure on the turbine side, e.g. as a result of an arbitrary opening of the above-mentioned bellows valve.
Spjeldventilen i henhold til oppfinnelsen, som -på hensikts-messig måte er utført nettopp for dette formål, har som særtrekk at dens ventillegeme er utstyrt med utragende eksentriske pinner, festet på sylinderformede lagertapper som er anordnet med klaring i lagerhylser i ventilhuset. The butterfly valve according to the invention, which - in an appropriate way - has been made precisely for this purpose, has as a distinctive feature that its valve body is equipped with protruding eccentric pins, fixed on cylindrical bearing pins which are arranged with clearance in bearing sleeves in the valve housing.
O<p>pfinnelsen vil nu bli nærmere anskueliggjort ved hjelp avThe invention will now be more clearly illustrated with the help of
et utførelseseksempel under henvisning til de vedføyde tegninger, hvorpå an exemplary embodiment with reference to the attached drawings, whereupon
Fig. 1 viser skjematisk og sett fra siden en ventil i henhold til oppfinnelsen i lukket ventilstilling, idet ventil-legeraet er vist i aksialsnitt,Fig. 1 shows schematically and seen from the side a valve according to the invention in the closed valve position, the valve alloy being shown in axial section,
Fig. 2 er en skisse av samme art som fig. 1 og viser ventil-legemet i anlegg mot sitt ventilsete, og Fig. 3 er også en skisse av samme art som fig. 1 og viser ventilen i åpen stilling. Fig. 2 is a sketch of the same type as fig. 1 and shows the valve body in contact with its valve seat, and Fig. 3 is also a sketch of the same type as fig. 1 and shows the valve in the open position.
Den ventil som er vist i fig. 1-3 på tegningen omfatter et ventilhus 1 hvori det er montert et ventillegeme 2 utstyrt med utragende pinner som er festet til sylinderformede lagertapper 4, som i sin tur er montert med klaring i lagerhylser 5 The valve shown in fig. 1-3 in the drawing comprises a valve housing 1 in which is mounted a valve body 2 equipped with protruding pins which are attached to cylindrical bearing pins 4, which in turn are mounted with clearance in bearing sleeves 5
i ventilhuset 1. Som vist i fig. 1, ligger ventillegemet 2in the valve housing 1. As shown in fig. 1, the valve body 2 is located
i lukket ventilstilling an mot et ventilsete 6 i ventilhuset 1.in the closed valve position against a valve seat 6 in the valve housing 1.
En hydraulisk jekk 7 er innrettet for i et første bevegelsestrinn å forskyve ventil-legemet 2 bort fra sitt sete 6 (fig. 2) og i et annet bevegelsestrinn bringe ventil-legemet til å svinge til helt åpen stilling (fig. 3) mot virkningen av en motvekt 8 som er montert ved ytterenden av en vektarm 9 som er fast forbundet med en av de utragende pinner 3. For å utføre dette virker jekken på en annen'vektarm 10 som også står i fast for-bindelse med pinnen 3. Åpningen av ventilen finner sted ved dødt vann, hvilket vil si utligning av vanntrykket mellom de to sider av ventilen. Det samme er tilfelle ved overgang fra åpen stilling (fig. 3) til den stilling hvori ventil-legemet 2 A hydraulic jack 7 is arranged to, in a first movement step, displace the valve body 2 away from its seat 6 (fig. 2) and in a second movement step cause the valve body to swing to the fully open position (fig. 3) against the action of a counterweight 8 which is mounted at the outer end of a weight arm 9 which is firmly connected to one of the projecting pins 3. To perform this, the jack acts on another weight arm 10 which is also firmly connected to the pin 3. The opening of the valve takes place at dead water, which means equalization of the water pressure between the two sides of the valve. The same is the case when transitioning from the open position (fig. 3) to the position in which the valve body 2
er forskjøvet bort fra ventilsetet 6 etter utløsning av jekken 7 (fig. 2). For å bringe ventillegemet 2 i kontakt med ventilsetet 6 i lukket ventilstilling (fig. 1), senkes trykket i den del av strømningskanalen som befinner seg til høyre i fig. 1. is displaced away from the valve seat 6 after release of the jack 7 (fig. 2). In order to bring the valve body 2 into contact with the valve seat 6 in the closed valve position (fig. 1), the pressure is lowered in the part of the flow channel which is located on the right in fig. 1.
I det tilfelle denne strømningskanal utgjøres av inntaket tilIn that case, this flow channel is formed by the intake to
en turbin som skal tømmes, vil det være tilstrekkelig å åpne tømningsventilen 11 for å bringe ventillegemet 2 til anlegg mot ventilsetet 6 i lukket ventilstilling (fig. 1). a turbine that is to be emptied, it will be sufficient to open the emptying valve 11 to bring the valve body 2 into contact with the valve seat 6 in the closed valve position (fig. 1).
Et viktig særtrekk ved den spjeldventil som er vist på tegningene, er at de utragende tapper 3 ikke er anordnet i forlengelse av hverandre langs en midtakse.for ventillegemet 2, men istedet An important distinctive feature of the butterfly valve shown in the drawings is that the projecting pins 3 are not arranged in extension of each other along a central axis of the valve body 2, but instead
på en akse som er forskjøvet oppover i fig. 1. Det samme er tilfelle med lagerhylsene 5 i ventilhuset 1. on an axis which is shifted upwards in fig. 1. The same is the case with the bearing sleeves 5 in the valve housing 1.
Ved et tilfeldig overtrykk på høyre side av ventillegemet iIn the event of an accidental overpressure on the right side of the valve body i
fig. 1, vil således den trykk-kraft som utøves på den del av ventillegemet 2 som befinner seg under legemets syingeakse, overskride den tilsvarende samlede trykk-kraft mot ventil-legemet på oversiden av aksen. Som en følge av dette vil ventilen under påvirkning av en sådan kraftfordeling ha en tendens til å åpne seg i det minste delvis ved forskyvning av den nedre del av ventil-legemet 2 bort fra setet 6. fig. 1, the pressure force exerted on the part of the valve body 2 which is located below the sewing axis of the body will exceed the corresponding total pressure force against the valve body on the upper side of the axis. As a result, the valve under the influence of such a force distribution will tend to open at least partially by displacing the lower part of the valve body 2 away from the seat 6.
Det bør også påpekes at motvekten 8 er forskynt med en trinseIt should also be pointed out that the counterweight 8 is accelerated with a pulley
12 som kan bevege seg mot et underlag 13 for føring av ventil-legemet 2 under dets forskyvning mellom lukket ventilstilling (fig. 1) og sin stilling i avstand fra ventilsetet 6 (fig.- 2) 12 which can move towards a base 13 for guiding the valve body 2 during its displacement between the closed valve position (fig. 1) and its position at a distance from the valve seat 6 (fig. 2)
og vise versa.and vice versa.
Den s<p>jeldventil som er vist på tegningene har også den fordelThe check valve shown in the drawings also has that advantage
at den er utstyrt med et ventillegemet 2 av liten tykkelse, hvilket er mulig ut i fra det forhold at belastningen på ventil-legemet i lukket ventilstilling i sin helhet opptas av ventil-legemets omkrets, mens dets lagertapper 3 er fullstendig av-lastet. Denne lille tykkelse av ventil-legemet 2 sikrer minst mulig trykktap nar ventilen befinner seg i åpen stilling i turbininntaket. that it is equipped with a valve body 2 of small thickness, which is possible from the fact that the load on the valve body in the closed valve position is entirely taken up by the circumference of the valve body, while its bearing pins 3 are completely relieved. This small thickness of the valve body 2 ensures the least possible pressure loss when the valve is in the open position in the turbine intake.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1018478A CH623903A5 (en) | 1978-09-29 | 1978-09-29 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO793090L true NO793090L (en) | 1980-04-01 |
Family
ID=4360316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO793090A NO793090L (en) | 1978-09-29 | 1979-09-26 | Butterfly valves. |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5547070A (en) |
| AT (1) | AT363404B (en) |
| BR (1) | BR7906188A (en) |
| CH (1) | CH623903A5 (en) |
| DE (1) | DE2939163A1 (en) |
| ES (1) | ES484558A1 (en) |
| FR (1) | FR2437556A1 (en) |
| IT (1) | IT1119194B (en) |
| NO (1) | NO793090L (en) |
| SE (1) | SE7907997L (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2166143C2 (en) * | 1999-05-20 | 2001-04-27 | Зеленодольское проектно-конструкторское бюро | By-pass valve or air-intake chamber of gas-turbine engine |
| RU2293239C2 (en) * | 2005-01-17 | 2007-02-10 | Степан Юрьевич Панчеха | Excess pressure valve |
| CN105840905B (en) * | 2016-06-08 | 2018-01-05 | 曹学者 | A kind of hydraulic butterfly valve system with excellent heat dispersion performance |
| CN116677552B (en) * | 2023-05-31 | 2025-10-17 | 三峡金沙江川云水电开发有限公司 | Protection shutdown method for large hydropower station barrel valve sliding down to accident position |
-
1978
- 1978-09-29 CH CH1018478A patent/CH623903A5/en not_active IP Right Cessation
-
1979
- 1979-09-24 AT AT0625879A patent/AT363404B/en not_active IP Right Cessation
- 1979-09-25 DE DE19792939163 patent/DE2939163A1/en not_active Withdrawn
- 1979-09-26 NO NO793090A patent/NO793090L/en unknown
- 1979-09-26 BR BR7906188A patent/BR7906188A/en unknown
- 1979-09-27 SE SE7907997A patent/SE7907997L/en not_active Application Discontinuation
- 1979-09-27 FR FR7924064A patent/FR2437556A1/en not_active Withdrawn
- 1979-09-28 JP JP12525079A patent/JPS5547070A/en active Pending
- 1979-09-28 IT IT68888/79A patent/IT1119194B/en active
- 1979-09-28 ES ES484558A patent/ES484558A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH623903A5 (en) | 1981-06-30 |
| ATA625879A (en) | 1980-12-15 |
| IT1119194B (en) | 1986-03-03 |
| DE2939163A1 (en) | 1980-04-17 |
| IT7968888A0 (en) | 1979-09-28 |
| FR2437556A1 (en) | 1980-04-25 |
| SE7907997L (en) | 1980-03-30 |
| JPS5547070A (en) | 1980-04-02 |
| AT363404B (en) | 1981-08-10 |
| BR7906188A (en) | 1980-06-03 |
| ES484558A1 (en) | 1980-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO793090L (en) | Butterfly valves. | |
| CN106801750B (en) | The check-valves of connecting rod for changeably compression internal combustion engine and connecting rod with this check-valves | |
| CN104500790A (en) | Large-aperture inclined seat type check valve | |
| JP7488580B2 (en) | Liquid Pumping Device | |
| US1239015A (en) | Disk valve. | |
| JP2855417B2 (en) | Waterless check valve device | |
| US2232739A (en) | Pump valve | |
| US1000568A (en) | Pneumatic hammer. | |
| CN105889608B (en) | A kind of waterpower differential type butterfly control valve for water pump | |
| US453980A (en) | Edwin s | |
| US2543376A (en) | Valve | |
| CN106715985A (en) | Check valve capable of controlling fast and slow closing by means of variable throttle | |
| US8684A (en) | And francis armstrong | |
| US2074980A (en) | Air compressor | |
| US996194A (en) | Tilt-hammer. | |
| US1473384A (en) | Pneumatic pump | |
| SU1203302A1 (en) | Safety device | |
| JP7844775B2 (en) | Chatter prevention device | |
| US664468A (en) | Pump-governor. | |
| US1205338A (en) | Pump. | |
| JP3017059U (en) | Electric suppressor for water turbine for power generation | |
| US88001A (en) | Improvement in water-wheels | |
| US4580A (en) | Pump for raising water | |
| US1123123A (en) | Flush-valve. | |
| US393690A (en) | Joseph d |