WO2020178756A1 - Bride, disque et vanne comprenant la bride - Google Patents

Bride, disque et vanne comprenant la bride Download PDF

Info

Publication number
WO2020178756A1
WO2020178756A1 PCT/IB2020/051842 IB2020051842W WO2020178756A1 WO 2020178756 A1 WO2020178756 A1 WO 2020178756A1 IB 2020051842 W IB2020051842 W IB 2020051842W WO 2020178756 A1 WO2020178756 A1 WO 2020178756A1
Authority
WO
WIPO (PCT)
Prior art keywords
flange
disc
valve
previous
screws
Prior art date
Application number
PCT/IB2020/051842
Other languages
English (en)
Inventor
Enzo PETRUZZA
Original Assignee
Petrolvalves S.P.A.
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 Petrolvalves S.P.A. filed Critical Petrolvalves S.P.A.
Publication of WO2020178756A1 publication Critical patent/WO2020178756A1/fr

Links

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
    • F16K1/16—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 pivoted closure-members
    • F16K1/18—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 pivoted closure-members with pivoted discs or flaps
    • F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222—Shaping of the valve member
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B3/00—Key-type connections; Keys
    • F16B3/04—Key-type connections; Keys using keys formed of wire or other flexible material, to be inserted through an opening giving access to grooves in the adjacent surfaces of the parts to be connected
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
    • F16B39/101—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt with a plate, spring, wire or ring holding two or more nuts or bolt heads which are mainly in the same plane
    • 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
    • F16K1/16—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 pivoted closure-members
    • F16K1/18—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 pivoted closure-members with pivoted discs or flaps
    • F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member

Definitions

  • Flange, disc and valve comprising the flange
  • the present description relates to a flange, in particular to a flange which can be used in a disc of a valve.
  • the present disclosure also relates to a disc and a valve comprising such a flange, in particular a throttle triple offset valve or TOV (Triple Offset Valve).
  • TOV Triple Offset Valve
  • Known flanges are used to secure a sealing ring to a sealing ring of a disc body of a throttle valve by means of screws that tighten this sealing ring between the flange and the disc body, thus forming the disc of the valve.
  • the state of the art includes solutions aimed at preventing the screws from loosening or unscrewing, such as glues or paints, lock washers, washers with safety nose and self- locking nuts. These solutions, however, are not used in the valves described above when they are used with particular fluids or in extreme conditions of temperature or pressure, or yet because they are difficult to be used for reasons of encumbrance.
  • Another solution used in order to prevent the screws from loosening or unscrewing consists in the creation of welding points between the screws and the flange, but also this technique is to be considered unreliable as breakage of the welding points can occur, in addition to the fact that this solution is laborious and difficult, if not impossible, to be implemented during the maintenance of systems located in dangerous environments or without connection to the electricity mains.
  • An objective of the present description is to provide a valve free from these drawbacks. This object is achieved with a flange, a disc and a valve, the main features of which are specified in the appended claims.
  • this flange does not have any of the aforementioned drawbacks of the known flanges.
  • the guide preferably comprises a groove, so as to limit the production costs of the flange.
  • the flange can be ideally used in a throttle valve, in particular with triple offset or TOV (Triple Offset Valve).
  • FIG. 1 shows a rear view of the valve
  • FIG. 2 shows section II-II of figure 1;
  • - figure 3 shows an exploded view of the disc of the valve of figure 1;
  • FIG. 4 shows a front view of the disc of figure 3 in the case where the wire 13 is of the type with a solid section;
  • FIG. 4a shows a front view of the disc of figure 3 in the case where the wire 13 is of the type with a spring with tangent turns;
  • figure 5b shows the highlighted detail of figure 5a
  • FIG. 6a shows section VI- VI of figure 4a
  • figure 7 shows section VII- VII of figure 4 or 4a ;
  • figure 8 shows a front view of a screw in the disc of figure 3;
  • FIG. 9 shows a partial section of a second embodiment of the disc
  • figure 10 shows a front view of a screw in the disc of figure 9;
  • FIG. 11 shows a partial section of a third embodiment of the disc
  • figure 12 shows a front view of a screw in the disc of figure 11 ;
  • figure 13 shows the section XIII-XIII of figure 6;
  • figure 13a shows the section XIII-XIII of figure 6a
  • figure 14 shows the section XIV-XIV of figure 4.
  • figure 14a shows the section XIV-XIV of figure 4a.
  • the valve according to the present description comprises at least one valve body 1, a disc 2 and a shaft 3.
  • the valve body further comprises a sealing seat la for the disc 2.
  • the disc 2 is substantially shaped as a disk and can be rotated by the shaft 3 in the valve body 1 so that its relative position with respect to the sealing seat la leads to the opening or closing of the valve.
  • the disc 2 comprises along its peripheral edge at least one sealing ring 6. When this sealing ring 6 comes into contact with the sealing seat la of the valve body 1, the valve is closed. In this closed position the disc 2 is substantially perpendicular to the flow path. When the disc 2 is placed along the same direction of the flow path, the valve is in the fully open position.
  • the disc 2 comprises a hub in which the shaft 3 is arranged, which is keyed to the disc 2 thanks to one or more keys 10 and/or to at least one screw 4.
  • the shaft 3 also includes, at an upper end, at least one groove 3a which allows keying the shaft 3 to an organ for the transmission of motion (not shown) by means of a key (not shown).
  • the valve according to the present description is in particular a throttle triple offset valve or TOV (Triple Offset Valve).
  • the disc 2 comprises, in addition to the sealing ring 6, at least a disc body 5, a flange 7 and a plurality of screws 8.
  • the flange 7 on its turn comprises a plurality of axial holes the 7g within which are inserted the screws 8 to tighten the sealing ring 6 between the flange 7 and the disc body
  • the disc body 5 comprises, on its front surface 5a, a first seat 5b arranged around a first internal projection 5g.
  • the first seat 5b on its turn comprises a groove 5c adapted to house a ring seal 11, preferably of the spiro metallic type of stainless steel and graphite.
  • the first internal protrusion 5g on its turn comprises a second seat 5d arranged around a second internal protrusion 5h.
  • the first seat 5b and/or the second seat 5d are substantially circular
  • the first internal protrusion 5g and/or the second internal protrusion 5h are substantially cylindrical.
  • the second seat 5d, in the assembled disc 2, is preferably flush with the sealing ring
  • the second seat 5d is adapted to receive the flange 7 and comprises on its surface a plurality of threaded holes 5e, preferably blind holes.
  • the threaded holes 5e of the disc body 5 are aligned with the axial holes 7g of the flange 7 and can accommodate the threaded stem 8b of the screws 8 which, passing through the axial holes 7g of the flange
  • the disc body 5 also comprises a recess 5f which is disposed astride the first seat 5b and the second seat 5d and is adapted to accommodate a pad 12. Even the sealing ring 6 on the inner edge presents a recess 6a adapted to accommodate the pad 12, so that the sealing ring 6 can be mounted in a specific orientation with respect to the disc body 5.
  • the disc body 5 includes on its rear surface, that is the surface opposite to the front surface 5a, also the hub 5i for the shaft 3 and a groove 5j for keys 10.
  • the flange 7 is an annular body, for example substantially circular, which has a central cavity, at least one front surface 7c and at least one rear surface 7d, which are joined together by at least one internal perimeter surface 7e, for example substantially cylindrical, which delimits the central cavity, and from at least one external perimetral surface 7f, for example substantially cylindrical.
  • the axial holes the 7g mutually connect the front surface 7c and the rear surface 7d of the flange 7 and are arranged around the central cavity.
  • the axial holes 7g comprise a neck 7h which acts as a stop for the head 8a of a screw 8 and which separates two portions, in particular substantially cylindrical, coaxial but with different diameters: a first portion acting as a seat 7m suitable for receiving the head 8 a of the screw 8 and a second portion, of smaller diameter than the first portion, adapted to receive a portion of the stem 8b of the screw 8.
  • the seat 7m is open towards the front surface 7c of the annular body of the flange 7.
  • At least a guide 7a in particular a substantially arc-shaped guide, for example, substantially shaped as an arc of circle, in particular substantially circular, is formed in the annular body of the flange 7 so that this guide 7a intersects at least partially, in particular tangentially, the seats 7m of a plurality of axial holes 7g.
  • the flange 7 is joined to the disc body 5 by means of screws 8 inserted in the axial holes 7g of the flange 7 and screwed into the blind holes 5e of the disc body 5.
  • at least one wire 13 is inserted through an inlet hole 7i in the guide 7a of the flange 7 so that this wire 13 prevents the screws 8 to escape from the respective axial hole 7g, blocking partially the seat 7m of the axial hole 7g.
  • portions of the wire 13 interfere with the heads 8a of the screws 8 and prevent them to move axially towards the outside of the flange 7.
  • a first end 13a of the wire 13 is fixed to the outer circumferential surface 7f or to the front surface 7c of the flange 7 and the second end 13b is free inside the guide 7a, so that the wire 13 forms an open path to the interior of the guide 7a.
  • the second end 13b of the wire 13 is preferably rounded to facilitate sliding within the guide 7a and the first end 13a is preferably shaped like a hook so that it can be inserted into a cavity 7n placed preferably adjacent to the inlet hole 7i of the flange 7.
  • the wire 13 is preferably a flexible metal cable, in particular made of stainless steel.
  • the wire 13 is of the type with springs with tangent turns.
  • the spring wire 13 once inserted, is locked in position by a threaded dowel 13c positioned at the entrance of the radial hole for inserting the wire 13.
  • the dowel 13c is then punched by punching 13d to prevent it from unscrewing.
  • the wire 13 is housed in a seat constituted by the groove 7j obtained on the flange 7 and by a second groove 5k obtained on the internal projection 5h of the disc body 5.
  • This second groove which in the example of figure 5b is shaped in the form of an arc of a circle, is arranged so as to direct its concavity towards the concavity of the groove 7j in the flange 7, so as to cooperate with it for defining a housing for wire 13.
  • the guide 7a preferably comprises at least one groove, for example with a substantially circular or substantially rectangular section, made on a perimeter surface, in particular the internal perimeter surface 7e, which is connected to the inlet hole 7i by a section, in particular substantially tangent to the internal perimeter surface 7e, which crosses the flange 7 and puts the groove in communication with the external perimeter surface 7f and/or the front surface 7c of the flange 7.
  • the wire 13 is therefore arranged in the guide 7a between the flange 7 and the disc body 5, in particular its second internal projection 5h.
  • the screws 8 preferably comprise a collar 8c which is preferably arranged between the head 8a and the stem 8b and is adapted to be arranged between the wire 13 and the flange 7 to prevent the movement of the screws 8.
  • the head 8a is cylindrical with hexagonal graft.
  • the screws 8 comprise a groove 8d (shown with a dashed line in figure 10) which separates the collar 8c from the head 8a, wherein the diameters of the head 8a and of the collar 8c of the screws 8 are substantially the same.
  • the screws 8 comprise a head with a non-circular external profile, for example in the shape of a six-pointed star (Torx).

Abstract

Bride (7) comprenant un corps annulaire pourvu d'une pluralité de trous axiaux (7g) qui sont conçus pour recevoir partiellement la tige (8b) d'une vis (8) et sont pourvus d'un siège (7m) conçu pour recevoir la tête (8a) de la vis (8), au moins un guide (7a) qui coupe au moins partiellement les sièges (7m) des trous axiaux (7g) étant obtenu dans le corps annulaire. La présente description concerne également un disque et une vanne comprenant une telle bride, en particulier une vanne à papillon à triple excentration ou TOY (triple offset valve).
PCT/IB2020/051842 2019-03-05 2020-03-04 Bride, disque et vanne comprenant la bride WO2020178756A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102019000003173 2019-03-05
IT201900003173 2019-03-05

Publications (1)

Publication Number Publication Date
WO2020178756A1 true WO2020178756A1 (fr) 2020-09-10

Family

ID=66690808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2020/051842 WO2020178756A1 (fr) 2019-03-05 2020-03-04 Bride, disque et vanne comprenant la bride

Country Status (1)

Country Link
WO (1) WO2020178756A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4311960A1 (fr) * 2022-07-27 2024-01-31 UTC Aerospace Systems Wroclaw Sp. z o.o. Vannes papillon

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645180A (en) * 1984-06-15 1987-02-24 Jamesbury Corporation Wire form type insert retainer for a wafer style butterfly valve
GB2192255A (en) * 1986-07-01 1988-01-06 Hattersley Heaton Ltd Valves
JP2003065446A (ja) * 2001-08-29 2003-03-05 Toyo Valve Co Ltd シートリングリテーナ及びこれを備えたバタフライ弁
KR20150014120A (ko) * 2013-07-29 2015-02-06 현대중공업 주식회사 펌프용 웨어링의 볼트풀림 방지구조
US20180297397A1 (en) * 2015-10-08 2018-10-18 Basso Francesco Lavorazioni Meccaniche Safety device for a vehicle wheel
CN208041172U (zh) * 2018-02-12 2018-11-02 无锡智能自控工程股份有限公司 三偏心密封蝶阀压圈螺钉防松结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645180A (en) * 1984-06-15 1987-02-24 Jamesbury Corporation Wire form type insert retainer for a wafer style butterfly valve
GB2192255A (en) * 1986-07-01 1988-01-06 Hattersley Heaton Ltd Valves
JP2003065446A (ja) * 2001-08-29 2003-03-05 Toyo Valve Co Ltd シートリングリテーナ及びこれを備えたバタフライ弁
KR20150014120A (ko) * 2013-07-29 2015-02-06 현대중공업 주식회사 펌프용 웨어링의 볼트풀림 방지구조
US20180297397A1 (en) * 2015-10-08 2018-10-18 Basso Francesco Lavorazioni Meccaniche Safety device for a vehicle wheel
CN208041172U (zh) * 2018-02-12 2018-11-02 无锡智能自控工程股份有限公司 三偏心密封蝶阀压圈螺钉防松结构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4311960A1 (fr) * 2022-07-27 2024-01-31 UTC Aerospace Systems Wroclaw Sp. z o.o. Vannes papillon

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