WO2022010357A1 - Robinet-vanne et procédé de fonctionnement d'un robinet-vanne - Google Patents

Robinet-vanne et procédé de fonctionnement d'un robinet-vanne Download PDF

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Publication number
WO2022010357A1
WO2022010357A1 PCT/NO2021/050153 NO2021050153W WO2022010357A1 WO 2022010357 A1 WO2022010357 A1 WO 2022010357A1 NO 2021050153 W NO2021050153 W NO 2021050153W WO 2022010357 A1 WO2022010357 A1 WO 2022010357A1
Authority
WO
WIPO (PCT)
Prior art keywords
gate
valve
gate valve
collapsible
segments
Prior art date
Application number
PCT/NO2021/050153
Other languages
English (en)
Inventor
Runar Tenfjord
Original Assignee
Tenko As
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 Tenko As filed Critical Tenko As
Priority to EP21745462.8A priority Critical patent/EP4176190A1/fr
Publication of WO2022010357A1 publication Critical patent/WO2022010357A1/fr

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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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • 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
    • F16K3/0245—Curtain gate valves
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating 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
    • 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
    • F16K3/14—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 with special arrangements for separating the sealing faces or for pressing them together
    • 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
    • F16K3/16—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 special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—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 special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
    • F16K3/184—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 special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of cams
    • 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
    • F16K3/30—Details
    • 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
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack

Definitions

  • Some examples relate to a gate valve, as well as a method for operating a gate valve, further examples of which are described herein.
  • Valves or gates are systems that enable to control a liquid flow in a pipe or channel.
  • valves may typically consist of a closing device in a body installed in a piping system between pipe flanges. The valve is typically operated either manually, semi manually or automatic by a remote or local actuator.
  • Valves come in different types and can be used for different purposes. Some valves are primarily made to throttle the flow while others may be used to stop and start fluid flow.
  • Gate valves are primarily made to control the flow and normally operate either fully open or fully closed. Gate valves come in different designs which are often referred to as knife gate valves and slide gate valves. Knife gate valves are designed to provide a liquid seal (optionally with objects/particles in the liquid) and are often used in process plants.
  • Slide gate valves are often not designed to seal liquid and are most often used to control dry material flow.
  • any obstruction or groove in the valve body submerged in the flow passing the valve in open position will cause unwanted effects on the fluid flow.
  • Efficient design of the body and seat will protect against clogging of the valve, which may prevent or reduce fluid flow therethrough due to suspended solids or, where appropriate, damage on fish or objects transported through pipe systems.
  • Knife gate valves provide all these advantages and are therefore useful for process flows and may be found in many processing plants for handling many types of fluid flow, such as fluid flow with suspended particles, e.g. wastewater.
  • knife gate valves have low- pressure limitations, which may be a drawback in some cases.
  • the present invention has the objective to provide such improvements, or at least to provide alternatives to existing technology.
  • a gate valve comprising: a valve body having a flowpath extending therethrough; a collapsible gate member configurable between an open position and a closed position, wherein in the open position the gate member has a collapsed configuration and permits fluid flow through the flowpath, and in the closed position the gate member has an extended position and is at least partially positioned in the flow path and restricts fluid flow through the flowpath.
  • the gate valve may comprise a compartment for receiving the collapsible gate member in the collapsed configuration.
  • the compartment may be fixed to the valve housing and oriented above the valve housing.
  • the valve housing may comprise two parallel plates defining a cavity therebetween, the flow path extending through each of the two parallel plates and the cavity.
  • valve housing may comprise a sealing arrangement located between the two parallel plates configurable to seal against the collapsible gate member to restrict fluid flow in the flow path when the collapsible gate member is in the closed configuration.
  • the collapsible gate member may be configurable to the closed position by positioning the collapsible gate member in the cavity and may intersect the flowpath to restrict fluid flow therethrough.
  • a guide arrangement may be located in the cavity for guiding movement of the collapsible gate member.
  • the collapsible gate member may comprise a plurality of interconnected gate segments, which may be interconnected so as to enable rotation of each gate segment relative to each adjacent gate segment.
  • each of the interconnected gate segments may be connected to each adjacent gate segment via a mating profile and sealing arrangement.
  • the mating profile and sealing arrangement may comprise an elongate rib and an elongate socket, with the sealing arrangement being located therebetween.
  • the gate valve may comprise an actuator for providing translational movement to the collapsible gate member in the gate valve to configure the collapsible gate member between the open position and the closed position.
  • the actuator may be in the form of a pinion mounted on the valve body and a rack mounted on, or defined by, the collapsible gate member.
  • the actuator may be in the form of, or may comprise, a hydraulic piston.
  • the gate segments of the collapsible gate member may be arranged such that the collapsible gate member has a substantially planar shape, and in the collapsed configuration at least one of the gate modules may be been rotated relative to an adjacent module when in the extended configuration.
  • the collapsible gate member may comprise an upper portion and a lower portion, the upper portion comprising a first part and a second part, each of the first and the second part comprising a plurality of segments.
  • the first part may comprise a plurality of cones and the second part may comprise a plurality of cups, each of the cones being configurable to fit inside a corresponding cup so as to connect the first part to the second part.
  • a method for operating a gate valve comprising: providing a gate valve comprising a collapsible gate member configurable between an open position and a closed position; configuring the gate valve to the open position by collapsing the collapsible gate member to a collapsed configuration; and configuring the gate valve to the closed position by extending the collapsible gate member to an extended configuration.
  • the method may comprise receiving at least part of the collapsible gate member in a compartment when the gate valve is configured to the open position.
  • the method may comprise providing a gate valve comprising a plurality of interconnected gate segments, and may comprise rotating at least one of the plurality of interconnected gate segments relative to another of the plurality of interconnected gate segments to configure the gate valve from the open position to the closed position.
  • Figure 1 is a schematic illustration of gate valve in closed position.
  • Figure 2 is a schematic illustration of partly open valve.
  • Figure 3 is a schematic illustration of a fully open valve.
  • Figure 4 is a cross section A-A of a gate valve.
  • Figure 5 is an elevation view of a closed gate valve.
  • Figure 6 is an elevation view of an open gate valve.
  • Figure 7 is a cross section F-F of a gate valve
  • Figure 8 is a perspective view of a closed gate valve.
  • FIGS 9 to 11 illustrate various components of a gate valve.
  • FIGS 12 to 15 illustrate various further examples of valve members.
  • the first aspect of this disclosure shows a gate valve comprising: a valve body 9 having a flowpath extending therethrough; a collapsible gate member 1 configurable between an open position and a closed position, wherein in the open position the gate member 1 has a collapsed configuration and permits fluid flow through the flowpath, and in the closed position the gate member 1 has an extended position and is at least partially positioned in the flow path and restricts fluid flow through the flowpath.
  • Figures 1 and 2 illustrate an example of a gate valve 10 in a closed and in an intermediate, partially open position
  • Figure 3 illustrates a gate valve 10 in a fully open position, permitting fluid flow therethrough via a flowpath 5 from a location upstream 5A of the gate valve 10 to a location downstream of the gate valve 10.
  • the valve illustrated in Figure 1 shows a valve member 1, which is a gate in this example, and is contained within a housing 9 to form the gate valve 10.
  • the gate valve 10 is in the closed position, and in this position a leading edge 14 of the valve member 1 is in contact with a seal 11.
  • the seal 11 may be a single seal, or it may be a sealing arrangement comprising a plurality of seals.
  • the seal 11 is contained within a seal groove 2, the seal groove 2 itself being contained within, and defined by, the valve housing 9.
  • Contact between the leading edge 14 of the valve member 1 and the seal 11 restricts fluid flow in the flowpath 5, and in this example completely prevents fluid flow in the flowpath 5, by closing an opening 17 in the gate valve 10 which intersects the flowpath 5.
  • valve member 1 As the valve member 1 restricts fluid flow in the flowpath 5, this may cause a back pressure to build up in the upstream location 5A, thereby causing a pressure differential to act across the valve member 1. This pressure differential gives rise to a force acting across a surface of the valve member 1, acting in the direction of the downstream location 5B, and has the effect of pressing the valve member 1 into the seal 11 in the seal groove 2, thereby enhancing the sealing capability of the gate valve.
  • an actuation mechanism 7 may be used to move the gate valve between an open and a closed position.
  • the actuation mechanism 7 When in the closed position, the actuation mechanism 7 may be used to exert a force directed along the axial length of the valve member 1 (in this example, a force having vertical direction), which may further enhance the quality of the seal between the valve member 1 and the seal 11. In some examples, the actuation mechanism 7 may be able to lock the valve member 1 in place in the closed position, thereby ensuring a constant application of force of the valve member 1 onto the seal 11.
  • valve member 1 has been partly retracted into a compartment 6 on top of the valve 10 by means of the actuation mechanism 7.
  • a rack and pinion style actuation mechanism 7 may be used to both raise and lower the valve member 1.
  • the valve member 1 may be used to reduce the flow rate through the gate opening, thereby allowing some flow of fluid through the flow path 5, and creating a region of turbulent flow in the flow path 5.
  • the valve member 1 is formed of a plurality of segments 15. As will be described in further detail later, the segments are secured to each adjacent segment so as to permit one degree of rotational movement between each of the segments at the junction between adjacent segments.
  • the segments 15 in the gate valve member 1 permits the gate valve member to bend, and thereby be contained within the compartment 6, allowing the compartment to be more compact than if the gate valve member 1 were unable to bend.
  • the gate valve member 1 is raised into the compartment 6, its bending permits the overall height of the gate valve 10 to be reduced, thereby making the entire arrangement more compact.
  • a bar 6a with a V formed edge is installed in the compartment in the example shown, which may assist to guide each of the parts la, lb as they bend, ensuring that the parts la, lb bend as is intended.
  • an upper portion of the valve member 1 is formed of two parts la, lb.
  • the two parts la, lb may or may not be identical in shape, in one example one part is a mirror image of the other.
  • each of the parts la, lb has a substantially planar shape (having two larger "major” surfaces and a number of peripheral smaller "minor” surfaces).
  • the parts la, lb are parallel, and at least one major surface of each of the parts la, lb may be in direct contact with a major surface of the other of the parts la, lb.
  • each of the parts la, lb may not be in direct contact, but may be located in close proximity to one another.
  • valve member 1 is fully retracted from the flowpath 5 and provides little or no restriction to fluid flow therein.
  • segmented nature of the valve member 5 allows it to be contained within the compartment 6 in the fully withdrawn state.
  • the plurality of segments 15 enable each valve member 1 to bend into an arc shape, thereby reducing the length of the valve member 1.
  • each segment in the closed configuration, each segment is able to extend away from the opening 17, both in a direction parallel to the flow path 5 and perpendicular to the flowpath 5.
  • one of the parts la extends in an opposite direction to the other of the parts lb.
  • the compartment 6 in which the retracted valve member 1 is stored may take up much less space, and may be more easily positioned, as compared to storage and positioning of a rigid valve member.
  • valve member 1 is illustrated here as having a curved configuration in the closed configuration, the skilled reader will appreciate that other shapes of valve member 1 may be possible, for example, the segments may fold or collapse in a repeating Z-shape, or an S- shape.
  • Figure 4 illustrates a sectional view of A-A as shown in Figure 5.
  • the gate 1 is in the closed configuration, and an actuation mechanism 7 is illustrated in a position towards the top of the valve housing 9, as shown in Figure 5.
  • Figure 4 contains additional details B, C and D, each of which are illustrated in Figure 4, and illustrate parts of Figure 4 in greater detail.
  • Detail D illustrates the actuation mechanism 7 for operating the gate.
  • the actuation mechanism 7 is in the style of a rack-and-pinion.
  • Two rotatable pinions 7a are provided, having teeth that fit into a rack 7b.
  • the pinions 7a are rotatable to actuate the gate valve 10 and move the valve member 1 between the open and the closed position.
  • means of rotating the pinions may also be provided, such as an electrical motor and a drive shaft.
  • two pinions 7a which are located on either side of the valve member 1 (e.g. one is located on the upstream side of the valve member, while the other is located on the downstream side), and the pinions 7a may be used together to actuate the gate valve 10.
  • the racks 7b, with which the teeth of the pinions are engaged may be located on the surface of the valve member 1 (e.g. they may be bonded, fastened, affixed, or the like), or the racks 7b may be integrally formed with the valve member 1.
  • each rack 7b may engage with the teeth on each pinion 7a located on the same side as that rack 7b, to enable actuation of the gate valve 10 by turning of the pinions 7a, and facilitating vertical movement (in the configuration shown in Figure 4) of the valve member 1.
  • Having a rack and pinion actuation mechanism 7 located on either side of the valve member 1, as opposed to simply one side, may provide a degree of redundancy to the system or preferably one side can be used for mechanically locking the valve member 1 in a desired position, e.g. the closed position.
  • this setup may also provide a more even distribution of forces on the valve member, when it is being moved between the open and closed configurations, thereby prolonging the lifespan of the valve member 1 of the gate valve 10.
  • Detail C shows in more detail the connection between two segments 15.
  • the valve member 1 as described is segmented such that, in the closed configuration, the valve member 1 is able to bend to fit in a compartment (not shown in Figure 4).
  • Each segment 15 of the valve member 1 is joined to each adjacent segment, according to this example, by a mating profile arrangement.
  • one segment comprises a protruding profiled surface that mates with a depressed profile on the adjacent segment 15 at an interface 20.
  • a recess is provided at, or proximate, the interface 20 to facilitate rotation of the protruding profile inside the depressed profile.
  • the mating profile may be in the form of an elongate rib, or a pair of elongate ribs, that are formed on one segment that is permitted to rotate in an elongate socket of the adjacent segment.
  • each of the segments 15 may be securely coupled together, while at the same time permitting movement, here rotation, between adjacent segments.
  • Detail C illustrates two parts la, lb of an upper portion of a valve member 1, oriented parallel to one another. The parts la, lb are not in contact with one another in this example, and a small gap 24 remains therebetween.
  • Each of the parts la, lb is a mirror image of the other, which may assist with ease of manufacture and assembly of the gate valve 10.
  • an interface sealing arrangement 22 In addition to the profiled surfaces at the interface 20, also provided is an interface sealing arrangement 22.
  • the interface sealing arrangement is here designed to provide a fluid seal between each of the segments 15 when in the closed configuration. Therefore, each of the adjacent segments 15 is in contact with the sealing arrangement.
  • the sealing arrangement 22 may be or comprise a rubber seal.
  • the sealing arrangement 22 may be located on either the protruding or the depressed profile of one of the adjacent segment 15.
  • the sealing arrangement in this example, is a static seal. When the gate valve 10 is in the open configuration, the sealing arrangement 22 may be ineffective, as there may be no contact between the sealing arrangement 22 and one of the adjacent segments 15.
  • Detail B shows detail of seal 11 in the seal groove 2 and a housing seal 13 positioned between two parts of the housing, as is shown in further detail in Figure 11.
  • the seal 11 may be any type of seal, and in this example is a static seal.
  • seal 11 may be a rubber seal.
  • the seal groove 2 is shown as having an inverted T-shaped cross-section, which may assist to hold the seal 11 in the seal groove.
  • the housing 9 is also shown here comprised of two parts, although the skilled reader will understand that it may be possible to have a housing 9 formed of a single part, or of more than two parts, e.g. 3, 4 or 5 parts. The two parts of the housing 9 may be held together by any appropriate means, such as chemical bonding, screwing, bolting, or the like.
  • Fig.5 shows an elevation view of the gate valve 10 such that the flow path 5 is in a direction perpendicular to the plane of the page.
  • the gate is closed.
  • the actuation mechanism 7, as illustrated is located at an edge (in this case an upper edge) of the gate valve.
  • the pinion 7a is still engaged in the rack 7b in this configuration, which may provide a locking effect on the gate valve, assisting to hold the gate valve in the closed configuration (see further details in Figure 4).
  • the segments 15 of the valve member 1 may be clearly shown.
  • each part la, lb of the valve member 1 comprise a plurality of equally sized segment 15, which may be identical, and that form the portion (e.g. the half) of the valve member 1 that is located closest to the actuation mechanism 7 when in the closed configuration shown in Figure 5.
  • the portion (e.g. the half) of the valve member that is located furthest from (e.g. distal to) the actuation mechanism 7 comprises a single part 15.
  • this segment of the gate valve is not required to deform, and therefore may be formed as a single section, as shown. Having this configuration enables the segmented valve member 1 to be open and closed while reducing the likelihood of the valve member 1 becoming stuck or misaligned in the housing.
  • FIG 6 is illustrated the same gate valve 10 as in Figure 5, but with the valve member 1 in an open configuration. In this position, the opening 17 is unobstructed, and the fluid in the flow path is able to flow therethrough unimpeded.
  • the actuation mechanism 7, which extends through a notch in the housing 9, is in contact with the valve member 1, and has configured the valve member 1 to the open configuration.
  • a segmented portion of the gate valve member 1 protrudes from the top of the housing 9 of this example, and the upper portion that protrudes from the top of the housing 9 is formed of two parts la, lb. Although not illustrated, this portion may be contained in a compartment, thereby preventing damage to this part of the valve member 1 when it is in the open configuration.
  • a series of protruding cones lc is located along the length of one part la, while a series of receiving cups Id is located along the length of the second part lb of the valve member 1.
  • the series of protruding cups lc and protruding cones Id are formed on an interior facing surface of each part la, lb of the valve member 1, the interior facing surface being oriented to face towards the centre of the width of the valve member, and each interior facing surface of the parts la, lb being parallel and facing one another when the valve member 1 is in the closed configuration.
  • two cones lc are installed at each movable segment of one part la, while two cups Id are formed in the second part lb, such that the cones lc and cups Id each form two lines extending the length of the valve member 1.
  • valve member 1 When the valve member 1 is in the closed configuration, the cones lc engage and fit into the cups Id, holding the two parts la, lb together and ensuring the formation of a solid valve member 1 in the closed position as the cones lc and cups Id effectively mate together, and thereby providing a degree of locking between the parts la, lb.
  • Figure 7 illustrates the cross sectional view F-F of Figure 6.
  • the segmented portion of the valve member 1 forms an arc when in the open configuration.
  • the actuation mechanism 7 is in the form of two pinions 7a and two racks 7b.
  • the racks are integrally formed with each side of the valve member 1.
  • the valve member is formed of a segmented portion which is formed of two parts, and a non-segmented portion, formed of a single part.
  • the non-segmented portion remains, both in the closed and in the open position, inside the housing 9 of the gate valve 10, whereas the segmented portion remains in the housing 9 only in the closed configuration.
  • the two parts la, lb of the segmented portion extend both horizontally and vertically away from the opening 17, as previously described.
  • one of the pinions is located slightly higher with respect to the housing 9 than the other pinion. This may facilitate movement of the valve member 1 between the open and closed configurations by distributing the forces applied by each pinion 7a on the valve member 1.
  • FIGs 8 and 8a show the gate valve 10 in the closed configuration, with further detail shown on the construction of the housing 9.
  • the housing is comprised of two parts 9a, 9b, which are substantially mirror images of one another in this example.
  • a housing seal 13 located in a groove in one of the housing parts 9b.
  • the housing seal 13 extends around the outer perimeter of the housing, and prevents escape of fluid through the housing.
  • a seal 11 that is located in a IB recess between the housing 9 and the valve member 1.
  • the valve member 1 may abut against the seal 11, and thereby the seal may assist to provide sealing by preventing fluid in the flow path (when the gate valve 10) is installed/closed, from flowing around the outer surface of the valve member 1.
  • the rack 7b can be viewed on one side of the valve member 1, which is integrally formed therein.
  • Figures 9 to 11 illustrate the component parts of the gate valve 10 in further detail.
  • Figure 9 illustrates one example of the valve member 1, showing both the valve member 1 in a fully constructed state, and two segments 15 of the valve member.
  • one first portion 26a of the valve member may be made from a plurality of segments, while a second portion 26b of the valve member may be made from one single segment.
  • an upper portion 26a (which may account for half of the upper length, a two thirds, etc.) is made from a plurality of segments 15 that are substantially identical.
  • a lower portion 26b is made from a single segment 15a, and is substantially semi- circular in shape.
  • the segments 15 fit together to form the upper portion 26a of two members that are substantially planar in shape when the valve member 1 is in the closed configuration as is shown in Figure 9.
  • each of the segments comprise at least one edge 28 having a profiled surface for connection with an adjacent segment.
  • the illustrated rectangular segment 15 comprises two connection edges 28, while the semi-circular segment comprises a single connection edge 28.
  • Figure 10 illustrates the seal 11 that is positioned between the valve member 1 and the housing 9.
  • the seal has a T-shaped cross-section, which assists to hold the seal in place in a groove in the housing.
  • the seal 11 may additionally assist to prevent snagging or sticking between the housing 9 and the valve member 1 as the valve member 1 slides between the open and the closed configurations, and may optionally function as a guide arrangement to guide the valve member 1 in the gate valve 10.
  • FIG 11 shows one part of the housing 9.
  • the housing 9 is made from two parts.
  • the two parts may be identical, which may assist in the ease of manufacturing of the housing 9, and the parts may fit together by any appropriate means such as bonding, bolting, snap-fitting, or the like.
  • FIGS 12 to 15 are various different valve members 1 that may be used in place of that already described.
  • the skilled reader will appreciate that further examples may be made by taking features from one or some examples and incorporating those features into another example.
  • Figure 12 illustrates a valve member 1 made from a plurality of segments 15, but with the lower portion 26b being constructed form a rectangular shaped segment 15a, rather than a semi-circular segment as previously described.
  • the rectangular shaped segment 15a is approximately the same length as the segments 15 of the upper portion 26a.
  • the lower portion 26b is formed of a single segment having the width of the valve member 1, rather than multiple segments that are joined together, and spaced apart to provide a central air gap, thereby requiring the segments of the upper portion 26a to be thinner (e.g. less than half the thickness) of the overall width of the valve member 1.
  • Figure 13 illustrates a valve member 1 of a similar form to that as previously descried in Figures 1 to 11.
  • a dowel 30 protruding in a lateral direction from all but the uppermost segments is a dowel 30.
  • the dowels may be used to assist in the movement of the valve member 1 between the open and closed configurations.
  • Figure 14 illustrates a valve member 1 of a similar form to that as previously described.
  • the valve member 1 of Figure 14 has no rack integrally formed, or attached to, the segments 15.
  • an actuation arm 32 is positioned in the air gap between the segments 15 of the upper portion 26a, and attaches to the lower portion.
  • the actuation arm 32 comprises an attachment profile at one end of the actuation arm 32 such that it protrudes from the upper portion, and an actuator may be affixable thereto.
  • the actuation arm 32 may be able to be incorporated into a hydraulic cylinder actuation arrangement, thereby permitting hydraulic actuation of the gate valve 10.
  • Figure 15 illustrates a valve member 1 that is similar to that as previously described. However, in this example the actuation mechanism 7 is located on a lateral surface of the valve member 1. Here, a rack 7b is positioned on a lateral surface of the segments 15 of the upper portion, while the pinions 7a are positioned laterally, on either side, of the valve member 1 to permit movement of the valve member 1 between open and closed position.
  • valve member 1 (or any individual features thereof) of any of the described examples may be used in combination with the gate valve as described in relation to any other example.
  • variations to the disclosed embodiments can be understood and effected by the skilled person in practicing the claimed disclosure, from a study of the drawings, the disclosure, and the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

La divulgation concerne un robinet-vanne comprenant un corps de vanne (9) ayant un trajet d'écoulement s'étendant à travers celui-ci ; un élément porte pliable (1) pouvant être configuré entre une position ouverte et une position fermée, dans la position ouverte, l'élément porte (1) ayant une configuration repliée et permettant un écoulement de fluide à travers le trajet d'écoulement et, dans la position fermée, l'élément porte (1) ayant une position étendue et étant au moins partiellement positionné dans le trajet d'écoulement et limitant l'écoulement de fluide à travers le trajet d'écoulement. La divulgation concerne en outre un procédé pour faire fonctionner un robinet-vanne.
PCT/NO2021/050153 2020-07-06 2021-06-25 Robinet-vanne et procédé de fonctionnement d'un robinet-vanne WO2022010357A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21745462.8A EP4176190A1 (fr) 2020-07-06 2021-06-25 Robinet-vanne et procédé de fonctionnement d'un robinet-vanne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20200787 2020-07-06
NO20200787A NO346184B1 (en) 2020-07-06 2020-07-06 A gate valve and a method for operating a gate valve

Publications (1)

Publication Number Publication Date
WO2022010357A1 true WO2022010357A1 (fr) 2022-01-13

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EP (1) EP4176190A1 (fr)
NO (1) NO346184B1 (fr)
WO (1) WO2022010357A1 (fr)

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CN209469810U (zh) 2019-02-21 2019-10-08 河南科林机械设备有限公司 一种尾腔活体式刀型闸阀

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FR2889281A1 (fr) * 2005-07-28 2007-02-02 Xbybus Soc Par Actions Simplif Vanne a clapet et clapet pour une telle vanne
JP2013092220A (ja) * 2011-10-26 2013-05-16 Cosmo Koki Co Ltd 作業用仕切弁
KR101563935B1 (ko) * 2015-02-26 2015-11-06 케이비엔지니어링(주) 셔터식 차수문
KR20160104840A (ko) * 2015-02-26 2016-09-06 주식회사 비츠로머티리얼 저소음 진공 게이트밸브
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CN209213036U (zh) 2018-10-22 2019-08-06 长兴佰菲特机械有限公司 一种复合型多级密封闸阀
CN209146347U (zh) 2018-11-15 2019-07-23 妥思空调设备(苏州)有限公司 安全级防火阀
CN209309369U (zh) 2018-12-07 2019-08-27 超达阀门集团股份有限公司 一种上装式固定阀的阀座密封机构及其适用于低温工况的固定球阀
CN209444833U (zh) 2019-01-21 2019-09-27 阮文胜 一种闸阀
CN209430787U (zh) 2019-01-28 2019-09-24 石家庄阀门一厂股份有限公司 一种大口径低压力的闸阀
CN209469810U (zh) 2019-02-21 2019-10-08 河南科林机械设备有限公司 一种尾腔活体式刀型闸阀

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Publication number Publication date
NO20200787A1 (en) 2022-01-07
EP4176190A1 (fr) 2023-05-10
NO346184B1 (en) 2022-04-11

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