Valve cage without dead zones between noise suppression sections and high-throughput of flow

FIELD: machine engineering.

SUBSTANCE: valve cage for fluid medium flow controller contains a hollow cylindrical body, a noise absorption portion, a flow high-throughput portion and a transition portion. The noise absorption portion has a plurality of inlet openings, a plurality of outlet openings, and a plurality of tortuous flow paths extending between the inlet and outlet openings. The flow high-throughput portion is in axial direction adjacent to the noise absorption portion and comprises a first axial end, a second axial end, and plurality of primary flow openings. The transition portion is on the intermediate surface between the noise absorption portion and the second axial end of the flow high-throughput portion and comprises a plurality of transition openings. Each transition opening has a recess at the end of the flow high-throughput portion so that the transition portion ensures no dead zone in the valve cage between the noise suppression sections.

EFFECT: high throughput of flow when implemented in the fluid flow controller.

23 cl, 4 dwg

 



 

Same patents:

FIELD: machine building.

SUBSTANCE: hydraulic valves with dynamic connections of valve gate are described.A cage locking member intended to be used with the hydraulic valve is proposed. The cage locking member comprises a body with its design allowing for the fixation of the hydraulic valve cage in the required position. Additionally, the proposed locking member is equipped by a variety of protrusions extending from the external surface of the body and set between the external surface of the body and internal surface of the cover.

EFFECT: prevention of permanent contact of the whole external surface of the cage locking member with the internal surface of the cover and provision for one or more contact points between the body and the internal surface of the cover.

17 cl, 9 dwg

FIELD: machine building.

SUBSTANCE: sealing units to be used with hydraulic valves are described. The proposed version of the valve gate intended for use with hydraulic valves comprises a cage (328) and a sealing unit (330) which shall be installed at least either in the cage or in the cage locking member (326) or in the plunger (322). The sealing unit includes the first seal and the first wiper. The first seal shall press the first wiper to prevent dirt from entering the dynamic sealing surface to which the first seal is pressed. The sealing unit additionally comprises the second seal and the second wiper. The second seal shall press the second wiper. The sealing unit also includes a spacing gasket between the first and the second seals.

EFFECT: improved seal.

18 cl, 16 dwg

FIELD: machine building.

SUBSTANCE: locking mechanism includes a cage having an upper part attached to a lower part through a detachable connection. A locking mechanism located inside the cage and having two mounting surfaces. A sealing assembly installed between the upper and the lower parts of the cage. When the locking element is in Closed position, the first mounting surface of the locking element tightly locks the sealing assembly, thus preventing a leak between the locking element and the cage. The valve seat is located inside the hole made in the valve. When the valve is in Closed position, the second mounting surface of the locking element comes into contact with the valve seat, thus shutting off the fluid medium flow between the inlet and the outlet chambers of the valve. The locking element has a body part, the dimensions of which provide for tight seating from inside to the first hole in the lower part of the cage, and a head part, the dimensions of which provide for tight seating from inside to the second hole made in the upper part of the cage. The head part forms the first mounting surface and has a diameter that is larger than that of the body of the locking element. The sealing assembly includes a seal and a limit stop that retains the seal during movement of the locking element between Open and Closed positions, and the seal has C-shape.

EFFECT: improvement of the mechanism design.

11 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: throttle valve has the possibility of being controlled by a fluid medium flow passing along the flow path from fluid medium inlet (29) to fluid medium outlet (27). The flow path includes a lot of holes (330) that, when being used, create pressure reduction on the throttle valve. Holes (330) expand in downward direction. Longitudinal axes (12) of holes (330) have a tangential component relative to a central axis of perforated sleeve (323) and an axial component relative to the central axis of perforated sleeve (323).

EFFECT: fluid medium cooling effect.

21 cl, 9 dwg

Valve assembly // 2498139

FIELD: machine building.

SUBSTANCE: valve assembly comprises a valve body with a valve seat, a fluid medium passage extending through the valve body and a shifting element which includes a valve element and can work between the open position when the valve element is distanced from the valve seat and fluid medium can pass through the above-mentioned passage and the closed position when the valve element is closely sealed to the valve seat so that to prevent fluid medium from passing through the passage. Additionally the valve assembly forms a path for fluid medium flow which in the first fluid medium passing mode goes between the valve element and the valve seat and to the fluid medium passage. Additionally the valve assembly comprises a barrier which is set so that in the first fluid medium passing mode the obtained fluid medium passes through to the barrier and is deflected round the valve element outline by the barrier.

EFFECT: one or more forces which could affect the valve element and press it to the closed position due to passing of fluid medium behind the valve element in the first fluid medium passing mode are decreased or eliminated.

4 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: assembly includes a housing determining a hole passing along the axis for arranged with possibility of moving a closing element and containing the first part connected so that it can be detached from the second part. The first part includes the first slot, and the second part includes the second slot. The first and the second slots form a sealing surface at connection of the first and the second parts to each other. The first part includes a flange, and the second part includes a stepped wall. The flange interacts with the stepped wall to facilitate alignment of the first and the second parts; at least one sealing element located near the sealing surface to be borne against the closing element so that tightness is provided, and a displacing element for displacement of the sealing element to the sealing surface.

EFFECT: enhanced operating reliability.

20 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: flow control device includes a valve body, a valve gate, a valve cage and an O-ring. At least some part of the O-ring is located inside the gap between the valve gate and the valve cage to provide sealing between them at closed position of the valve gate. The O-ring includes an L-shaped cross section.

EFFECT: effective sealing irrespective of the hole diameter of the flow control device and reduction of number of seal types that should be reserved for different applications.

24 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: proposed device comprises valve body with fluid flow channel, valve holder arranged therein and having wall with inner and outer surfaces. Said inner surface confines holder channel while wall has, at least, one flow passage with multiple orifices, each extending between inner and outer surface to constrict axis of orifice extending through the wall. Every axis of orifice is located at right angle to base plane perpendicular to holder channel axis while every through orifice is spaced from adjacent through orifice. Note here that, at least, one through orifice represents a slit with lengthwise axis extending in circle relative to the wall, and valve plug axially sliding in holder channel.

EFFECT: perfected design.

21 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: adjustment disc unit for devices of liquid medium flow adjustment comprises the first disc and the second disc. An extended cavity is formed in the surface of the first disc and the second disc. The second disc is levelled with the first disc to ensure communication by the fluid medium between the cavity of the first disc and the cavity of the second disc, at the same time the cavity of the first disc is displaced or arranged stepwise relative to the cavity of the second disc. The cavity of the first disc and the cavity of the second disc form together at least a channel for the fluid medium, having a cross section, which is characterised by increased and reduced area of cross section to form a mechanism of channel expansion/narrowing for the liquid medium.

EFFECT: reduced noise.

29 cl, 12 dwg

FIELD: construction.

SUBSTANCE: control disk unit for devices of fluid medium flow control includes the first disk (30) and the second disk (40). Extended cavity (34, 44) is formed in surface of the first disk and the second disk. The second disk is aligned with the first disk to provide for communication through fluid medium between cavity of the first disk and cavity of the second disk. Cavity of the first disk is displaced or arranged stepwise relative to cavity of the second disk. Cavity of the first disk and cavity of the second disk together form at least a passage (50) for fluid medium. Circular cavities (32) of the first disk (30) for passage of fluid medium and circular cavities (42) of the second disk (40) for passage of fluid medium form together acoustic chambers (55), which are arranged with the possibility to suppress acoustic noise created in passage for fluid medium, as a result of increase and decrease of cross section area with formation of mechanism for expansion or narrowing of passage for fluid medium. There is a device for control of medium flow with above specified control disk unit.

EFFECT: reduced transferred noise due to improvement of pressure reduction component in device of medium flow control.

23 cl, 12 dwg

FIELD: machine building.

SUBSTANCE: gate mechanism of a valve comprises a valve seat (216) and a shutoff element (214) which is pressed to the valve seat (216) in the course of operation. One of the elements - the shutoff element (214) and the valve seat (216) - is fitted by several circular collars (222), and at least one of the elements - the valve seat (216) and the shutoff element (214) - forms at least one groove (218) located between at least two circular collars (222) to receive the material from the sealing surface (220) between the shutoff element (214) and the valve seat (216), when the said shutoff element (214) is in close contact with the valve seat (216). The circular collars (222) have angular section facilitating the collection of material in at least one groove (218).

EFFECT: improved design.

16 cl, 5 dwg

FIELD: transportation.

SUBSTANCE: invention is related to pipeline valves, to isolating devices with stop element that executes sliding motion along seat surface, having shape of revolution bodies surface, and is intended for installation on technological lines of gas field to isolate and control of transported medium flow. Valve comprises body with inlet and outlet channels. Body contains two locks that are displaced by drive, for limited slewing electric drive. In case of stop and control lock opening, sealing element of seat is in unloaded condition, i.e. pressure drop on it is absent, and in case of medium flow control common pressure drop is equally distributed between both steps of control.

EFFECT: increased reliability and durability of valve operation.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: valve body incorporates three valves linked to the valve stem, i.e. a control, shutoff and additional valves. The plate-type shutoff valve is arranged downstream of the control valve with its seat with a sealing element being aligned with the stem in the valve body. The shutoff valve comprises an axial throat, a sealing element and a sealing surface. The stem lower end is furnished with an extra gate designed to interact with the shutoff valve sealing element. The control valve represents a sleeve-plunger furnished with radial symmetric holes and radial slots, the holes being arranged on the lower end face side and the slots being made between the upper end face and radial holes. The aforesaid sleeve-plunger is aligned with the fixed seat representing a tubular seat with radial holes aligned with the sleeve-plunger holes in open state. The seat tubular part in line operating mates the sleeve-plunger in open operation. A pin is arranged on the stem, ahead of the aforesaid additional gate, its end extending beyond the stem diameter to be located in the sleeve-plunger radial slots.

EFFECT: simpler design, higher reliability and longer life.

3 dwg

Control valve // 2286501

FIELD: valving.

SUBSTANCE: control valve comprises housing that is provided with inlet and outlet passages and receives two gates interconnected by means of a rod that is set in motion by means of the drive. The first gate is made of the step rod with piston provided with openings and sealing surface. The pin is secured to the step of greater diameter downstream of the piston. The ends of the pin project out of the grater diameter of the rod. The step of lesser diameter is provided with the additional piston. The under-piston space of this piston is in communication with the atmosphere. The above-piston space of the piston is connected with the inlet passage through the opening. The second gate is made of bushing-plunger that embraces the piston and is provided with the radial openings and radial grooves. The radial openings are arranged symmetrically above the sealing surface. The radial grooves are made in the bottom face from the side of the top face to the radial openings. The bushing plunger and unmovable seat are axially aligned. The seat is provided with the sealing surface and sealing member. The sealing member is made of a tube provided with radial ports. The ports and the openings in the bushing-plunger are axially aligned. The sealing surface of the bushing-plunger cooperates with the sealing surface of the seat.

EFFECT: enhanced reliability and simplified structure.

3 dwg

FIELD: pipe line fittings for technological lines of gas fields.

SUBSTANCE: proposed valve is provided with shut-off member performing sliding motion along seat surface having form of body of revolution; proposed valve is used for control of flow rate of medium being carried through pipe line. Body of shut-off adjusting valve has inlet and outlet passages where two gates are mounted which are set in motion by means of drive. First relief gate is made in form of additional rod-rack with bead and sealing surface at the end. Additional rod-rack is mounted in through axial hole of body which is engageable with it. Its beginning is located in inlet passage. Additional rod-gate is mounted for motion and fixation in extreme positions. End of relief gate with bead and sealing surface is located coaxially inside second shut-off adjusting gate. This end is engageable in one extreme position with sealing member shutting-off the relief hole in shut-off adjusting gate. Shut-off adjusting gate is provided with sealing surface and is located in seat with sealing member. This sealing member is tubular in shape and is provided with holes as far as sealing member in way of motion of medium flow. Inner diameter of tubular part of seat is engageable with outer diameter of shut-off adjusting gate as far as sealing member. Shut-off adjusting gate is set in axial motion by means of additional rod-rack. Central part of body has radial eccentric hole where pinion stem is located; this pinion stem is connected with drive and is engageable with additional rod-rack. Body has holes for connection of inlet passage with outlet one when shut-off adjusting gate is open.

EFFECT: simplified construction and enhanced reliability.

2 dwg

Stop-control valve // 2269051

FIELD: valving.

SUBSTANCE: stop-control valve comprises housing with inlet and outlet passages. The inlet passage receives two valve gates. The first valve gate is made of additional rod with groove and step-shaped piston provided with openings. The first valve gate is set in the through axial step-shaped opening in the housing. The second valve gate is made of the step-shaped bushing-plunger that embraces the piston. The bushing is mounted for permitting axial movement and locking at end positions. The seat is piping and provided with openings. The openings are arranged downstream of the sealing member and sealing surface. The inner diameter of the piping section of the seat mates the outer diameter of the valve gate. At the end bottom position, the sealing surface of the step-shaped piston of the additional rod cooperates with the sealing member. The central section of the housing is provided with a radial groove which receives the rod provided with the groove at its end. The groove receives the short arm of the L-shaped lever connected with the rod.

EFFECT: enhanced reliability.

1 dwg

Locking device // 2166142
The invention relates to a valve and is designed for stepless regulation of fluid flow

Stop-control valve // 2269051

FIELD: valving.

SUBSTANCE: stop-control valve comprises housing with inlet and outlet passages. The inlet passage receives two valve gates. The first valve gate is made of additional rod with groove and step-shaped piston provided with openings. The first valve gate is set in the through axial step-shaped opening in the housing. The second valve gate is made of the step-shaped bushing-plunger that embraces the piston. The bushing is mounted for permitting axial movement and locking at end positions. The seat is piping and provided with openings. The openings are arranged downstream of the sealing member and sealing surface. The inner diameter of the piping section of the seat mates the outer diameter of the valve gate. At the end bottom position, the sealing surface of the step-shaped piston of the additional rod cooperates with the sealing member. The central section of the housing is provided with a radial groove which receives the rod provided with the groove at its end. The groove receives the short arm of the L-shaped lever connected with the rod.

EFFECT: enhanced reliability.

1 dwg

FIELD: pipe line fittings for technological lines of gas fields.

SUBSTANCE: proposed valve is provided with shut-off member performing sliding motion along seat surface having form of body of revolution; proposed valve is used for control of flow rate of medium being carried through pipe line. Body of shut-off adjusting valve has inlet and outlet passages where two gates are mounted which are set in motion by means of drive. First relief gate is made in form of additional rod-rack with bead and sealing surface at the end. Additional rod-rack is mounted in through axial hole of body which is engageable with it. Its beginning is located in inlet passage. Additional rod-gate is mounted for motion and fixation in extreme positions. End of relief gate with bead and sealing surface is located coaxially inside second shut-off adjusting gate. This end is engageable in one extreme position with sealing member shutting-off the relief hole in shut-off adjusting gate. Shut-off adjusting gate is provided with sealing surface and is located in seat with sealing member. This sealing member is tubular in shape and is provided with holes as far as sealing member in way of motion of medium flow. Inner diameter of tubular part of seat is engageable with outer diameter of shut-off adjusting gate as far as sealing member. Shut-off adjusting gate is set in axial motion by means of additional rod-rack. Central part of body has radial eccentric hole where pinion stem is located; this pinion stem is connected with drive and is engageable with additional rod-rack. Body has holes for connection of inlet passage with outlet one when shut-off adjusting gate is open.

EFFECT: simplified construction and enhanced reliability.

2 dwg

Control valve // 2286501

FIELD: valving.

SUBSTANCE: control valve comprises housing that is provided with inlet and outlet passages and receives two gates interconnected by means of a rod that is set in motion by means of the drive. The first gate is made of the step rod with piston provided with openings and sealing surface. The pin is secured to the step of greater diameter downstream of the piston. The ends of the pin project out of the grater diameter of the rod. The step of lesser diameter is provided with the additional piston. The under-piston space of this piston is in communication with the atmosphere. The above-piston space of the piston is connected with the inlet passage through the opening. The second gate is made of bushing-plunger that embraces the piston and is provided with the radial openings and radial grooves. The radial openings are arranged symmetrically above the sealing surface. The radial grooves are made in the bottom face from the side of the top face to the radial openings. The bushing plunger and unmovable seat are axially aligned. The seat is provided with the sealing surface and sealing member. The sealing member is made of a tube provided with radial ports. The ports and the openings in the bushing-plunger are axially aligned. The sealing surface of the bushing-plunger cooperates with the sealing surface of the seat.

EFFECT: enhanced reliability and simplified structure.

3 dwg

FIELD: engines and pumps.

SUBSTANCE: valve body incorporates three valves linked to the valve stem, i.e. a control, shutoff and additional valves. The plate-type shutoff valve is arranged downstream of the control valve with its seat with a sealing element being aligned with the stem in the valve body. The shutoff valve comprises an axial throat, a sealing element and a sealing surface. The stem lower end is furnished with an extra gate designed to interact with the shutoff valve sealing element. The control valve represents a sleeve-plunger furnished with radial symmetric holes and radial slots, the holes being arranged on the lower end face side and the slots being made between the upper end face and radial holes. The aforesaid sleeve-plunger is aligned with the fixed seat representing a tubular seat with radial holes aligned with the sleeve-plunger holes in open state. The seat tubular part in line operating mates the sleeve-plunger in open operation. A pin is arranged on the stem, ahead of the aforesaid additional gate, its end extending beyond the stem diameter to be located in the sleeve-plunger radial slots.

EFFECT: simpler design, higher reliability and longer life.

3 dwg

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