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
  • F16K1/12—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 streamlined valve member around which the fluid flows when the valve is opened
  • F16K1/123—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 streamlined valve member around which the fluid flows when the valve is opened with stationary valve member and moving sleeve
• • 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
  • F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
  • F16K3/24—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
  • F16K3/26—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
  • F16K3/265—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a sleeve sliding in the direction of the flow line
• • 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
  • F16K47/00—Means in valves for absorbing fluid energy
  • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths

Definitions

• the present invention describes a device for variable pressure loss and / or
• ⁇ 0 closure and sealing seat can be used on circuits carrying gaseous or liquid fluids. Its purpose is to create a variable singular pressure loss on the pipe according to the displacement of a movable tube (5), very low at the beginning of the race and very important at the end of the race, or even an autoclave sealing. And this requires only a very low d5 maneuvering power.
• the device applies to all functions that can be fulfilled by all types of existing valves or faucets.
• the device is intended to replace the existing valves or valves currently, decreasing the powers necessary for their operation and Q 2 flow improvers fluide._
• valves or existing fill valves is a function of flow control 25 is a function of closing and sealing. No device can fulfill both functions.
• the seat valves consist of the advance of a cover against a seat, the parallel-seat valves constituted by two covers sliding " Q perpendicular to the fluid vein to rest on the seats at the end of the race, the taps to turn spherical or cylindrical where the closure is constituted by the rotation of the pierced core, and the butterfly valves.
• the seat valves have the advantage of being able to seal very high pressures and high temperatures.
• the fluid must pass through the seat.
• the rod holding the lid comes to rest on the seat, the fluid flow follows either a Z-shaped path or a 90 ° angle. This induces a disturbance of the flow and a loss of charge.
• Parallel seating valves allow less disturbed fluid flow. But their design does not allow regulation.
• Full-flow valves are generally ball valves or cylindrical valves. These faucets reconstitute the fluid vein integrally but have two disadvantages.
• the first of these drawbacks is the difficulty of being able to perfectly seal the valve between upstream and downstream because the sealing surfaces rub against each other during maneuvers and are scratched, which makes the realization of these faucets in high pressure and high temperature impossible.
• the second disadvantage is the high torque required for the operation of the valve because of the significant friction of the sealing surfaces, making it difficult to produce these valves in large diameter and very difficult the control function.
• they generally have a retention zone.
• Butterfly valves can be used as regulators but are not very tight.
• the pressure drop is generated by the simple reduction of the fluid passage section and not by devices for varying the path of the fluid. Output speeds are therefore very important. They cause a disturbance of the fluid vein and are subject to oscillations.
• valves and valves currently used combine a regulating function and a closing and sealing function.
• regulatory ranges are often limited.
• the device according to the invention consists in producing a control valve generating a very low pressure drop at full opening and very important at the end of the stroke, or even an autoclave seal on seat for good sealing at high pressure and at high temperature. keeping a very low maneuvering torque.
• a support (2a), (2b), (2c), (2d), (2e) or (2f) on which a cartridge (3a), (3b), (3c) is placed on a pipe is placed on a pipe.
• (3d), (3e) or (3f) containing almost all the organs necessary for the operation of the device.
• the fluid passes through openings (6a) or (6b) through a portion of the cartridge (3a), (3b), (3c), (3d), (3e) or (3f).
• a movable tube (5) closes more or less these openings (6a) or (6b) according to the desired pressure drop. Additional pressure drop devices can complete the openings (6a) or (6b) and adapt the device to the different flows.
• a sealing seat is possibly placed at the end of the race.
• a movable tube (5) as a cap decreases the masses to move and the pressure forces and therefore the energy to implement to maneuver the device.
• the device makes it possible to realize control and closing valves whatever the pressure and the temperature and this with a very small loss of load in completely open position.
• the mobile regulating member (5) and closing can be light, which is particularly advantageous for large diameters. It allows to choose the autoclave support force by adjusting the position of the contact between the seat (4) and the movable tube (5). The low weight of the moving parts as well as the adjustment of the autoclave force generate a very low maneuvering torque, therefore small engines.
• valves operated by autonomous generator is possible.
• the low power required for the maneuver can be generated from the fluid or from the external environment, stored and then used by an actuator that can be controlled remotely by a transmitter.
• Figure 1 describes the application of the preferred device according to the invention shown in section, in the so-called "closed” position, that is to say when the device blocks the passage of the fluid.
• FIG. 2 represents a variant of the device according to the invention without a pressure drop device, in the so-called "open” position, that is to say when the device leaves free the passage of the fluid and generating thereon a minimum pressure drop.
• FIG. 3 represents a variant of the device according to the invention, using a support (2c) of reduced size, a hydraulic drive device (19) and (22) and openings (6b) of cylindrical shape.
• Figure 4 shows a variant of the device according to the invention, using a support (2d) permanently attached to the pipe (1) and an autonomous drive device (21) and (23) and radio-controlled (24).
• Figures 5a and 5b show enlarged views of Figure 1 and provide a better understanding of the role of the stops (26).
• FIG. 6 represents a variant of the device according to the invention, using a support (2e) placed in such a way as to carry the cartridge (3e) in a balanced manner and not in cantilever fashion.
• FIG. 7 represents a left-side view of the support (2e) used in FIG. 6.
• FIG. 8 represents a variant of the device according to the invention, using a support (2f) placed in such a way as to carry the cartridge (3f) in a balanced manner and not in cantilever fashion.
• the tube (5) is external to the cartridge (3f).
• FIG. 9 represents a cutaway left view of the support (2f) used in FIG.
• FIG. 10 is an exploded example of a pressure drop device composed of a perforated support (7) and plates (33), (34), (35), (36) and (37).
• FIG 11 shows, exploded, another example of pressure loss device composed of balls (39). Detailed description of the use of the process according to the invention
• Figure 1 describes the preferred application according to the invention in the closed position, that is to say blocking the passage of the fluid.
• the invention consists of a device for achieving a variable singular pressure drop and / or closing and sealing between two parts of a fluid circuit.
• the invention is installed on a pipe (1). It consists of a body (2a), here detachably fixed on the pipe (1), carrying, here cantilevered, an inner cartridge (3a). Fixing is done by screws (11).
• This cartridge (3a) is for example closed by a cover (25) which allows maintenance operations inside the cartridge (3a). Openings (6a) are made through the cartridge (3a), within which the fluid passes. These openings are, for example, supplemented with pressure drop devices composed of a support (7) to which the plates (33), (34), (35), (36) and (37) are attached. By passing through this device for loss of charge, the fluid loses energy.
• Figure 10 shows in detail this pressure loss device.
• the pressure drop device, in Figure 1 is for example fixed by screws (13) on the cartridge (3a).
• the different plates (33), (34), (35), (36) and (37) can be mounted and disassembled without complete disassembly of the valve.
• the seal thus created is autoclave, that is to say that the upstream pressure applies a force on the tube (5) going in the direction of closure.
• This force can be chosen by the ratio of the surfaces of the tube (5) and its axis (18) subjected to the upstream and downstream pressure forces.
• the tube (5) is pushed by an axis (18) guided by a guide (15). and sealed by a seal (14).
• the drive device of the shaft (18) is for example a connecting rod system (9a) and (9b) - crank (8), pushed by an actuator (10).
• This driving device has the advantage of being independent of the positioning variations between the cartridge (3a) and the support (2a) due for example to the thermal expansion, to the pressure forces or to the weight of the cartridge (3a). .
• Figure 2 shows a variant of the preferred application according to the invention in the open position, that is to say generating a minimal pressure drop on the flow.
• the openings (6a) are in the preferred application according to the invention and for the example of rectangular shape, bare, and the displacement of the moving tube
• the drive device of the tube (5) and its axis (18) is a rack (17) driven by a pinion (16) coupled to an actuator (29).
• a lateral opening flange (30) completes the support (2b) and allows access to the inside of the pipe (1) and the device according to the invention without total disassembly of the latter.
• the cartridge (3b) does not have a closure cap.
• Figure 3 shows a variant of the application according to the invention in the open position.
• the support (2c) is here of very small size and the cartridge (3c) is internal to the pipe (1).
• the drive device of the tube (5) and its axis (18) is a jack (19) controlled by an actuator (22).
• the control fluid is conveyed in hoses (20), making the position of the cartridge (3c) independent with respect to the pipe (1).
• the openings (6b) are, for the example, of cylindrical shape.
• Figure 4 shows a variant of the application according to the invention in the open position.
• the support (2d) is permanently fixed to the pipe (1).
• This support (2d) is of reduced size and is internal to the pipe (1). It supports the cartridge (3d) which carries an autonomous energy generation device consisting of a turbine (21) and a storage and actuating device (23).
• the device may be radio-controlled by the radiotransmitter (24).
• the drilled supports (7) of the pressure drop devices are smaller than the openings (6a). This allows, in the open position, to generate only minimal pressure losses on the flow. When the tube (5) slides and begins to cover the pierced brackets (7), the pressure drop increases more rapidly. This arrangement therefore makes it possible to create only a slight loss of pressure in full opening and then greater from a certain stroke of the tube (5).
• FIGS. 5a and 5b show enlarged views of the pressure drop and closure members of the device according to FIG. 1.
• the plates (33), (34), (35), (36) and (37) are not here represented.
• Figure 6 shows a variant of the application according to the invention in the open position.
• the support (2e) carries the cartridge (3e) in a balanced manner and no longer cantilever as in the previous figures.
• the actuator (10) pushes a toothed piece (27) which drives the tube (5) in translation through a rack (28).
• Figure 7 shows a left view cut off the support (2e) shown in Figure 6. Sectors are cut so as to let the fluid.
• Figure 8 shows a variant of the application according to the invention in the open position.
• the support (2f) carries the cartridge (3f) in a balanced manner and no longer cantilever as in the previous figures.
• the tube (5) is external to the cartridge (3f).
• the support (2f) is solid and the fluid passes inside the cartridge (3f), through the openings (31),
• FIG. 9 is a left-side view of the support (2f) shown in FIG. 8. This support (2f) is solid so as to force the passage of the fluid through the openings (31), (32) and then (6b).
• FIG. 10 shows in detail an example of a pressure drop device composed of a pierced support (7) as well as grooved or pierced grids (33), (34), (35), (36) and (37), for example the number of 5.
• the fluid path is represented by the thick arrow line.
• the pressure drop is created by passing through the grooves and holes of the support (7) and grids (33), (34), (35), (36) and (37).
• the variation of the pressure drop coefficient of the application according to the invention is obtained by the closure by the tube (5) of a variable number of holes on the pierced support (7).
• the pressure drop device is also adaptable to a given flow (nature of the fluid, flow rate, pressure, etc.) by the modulation, out of operation, of the number and positioning of the holes and branches on the support (7) and the grids (33) (34) (35) (36) and (37) ⁇ by varying the number and order of the gates, and finally the variation of the general shape and nature of the grids and support (7).
• the number of pressure drop devices can also be modulated since one or more pressure drop devices can simply be removed or replaced by a solid plate. This makes it possible, for example, to linearize the pressure drop as a function of the displacement of the tube (5).
• the regulation position corresponds to the positioning of the tube (5) opposite the support (7).
• the support (7) and the grids (33), (34), (35), (36) and (37) can be replaced by elements of different sizes having the same function. This makes it possible to adapt the minimum pressure drop when the device is in the open position.
• the support (7) and the grids (33), (34), (35), (36) and (37) are smaller than the opening (6a) of the cartridge (3a).
• FIG. 11 shows in detail another example of a pressure drop device composed of a pierced support (7) on which is fixed a box (38) filled with balls (39) and closed by a perforated plate (40), fluid, passing through the balls (39) as represented by the thick arrow line, loses energy.
• the diameter of the balls (39) and the dimensions of the box (38) can be modulated so as to vary the pressure drop generated on the fluid, to adapt the device to a given flow (nature of the fluid, flow, pressure , etc.) and optionally to linearize the pressure drop as a function of the displacement of the tube (5).

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Pipe Accessories (AREA)
• Control Of Fluid Pressure (AREA)
• Jet Pumps And Other Pumps (AREA)
• Actuator (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=37744385

Family Applications (1)

Country Status (5)

Families Citing this family (19)

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• 2005
  • 2005-10-28 FR FR0511076A patent/FR2892791A1/fr not_active Withdrawn
• 2006
  • 2006-10-27 EP EP06831037A patent/EP1945977A2/de not_active Ceased
  • 2006-10-27 RU RU2008121258/06A patent/RU2440529C2/ru not_active IP Right Cessation
  • 2006-10-27 WO PCT/FR2006/002424 patent/WO2007048942A2/fr not_active Ceased
• 2008
  • 2008-04-25 US US12/109,507 patent/US20080224075A1/en not_active Abandoned

Non-Patent Citations (1)

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