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EP3377803B1 - Clapet de pied et caisson comprenant un clapet de pied - Google Patents

Clapet de pied et caisson comprenant un clapet de pied Download PDF

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Publication number
EP3377803B1
EP3377803B1 EP16804689.4A EP16804689A EP3377803B1 EP 3377803 B1 EP3377803 B1 EP 3377803B1 EP 16804689 A EP16804689 A EP 16804689A EP 3377803 B1 EP3377803 B1 EP 3377803B1
Authority
EP
European Patent Office
Prior art keywords
valve plate
caisson
tie rod
orifice
tubular element
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP16804689.4A
Other languages
German (de)
English (en)
Other versions
EP3377803A1 (fr
Inventor
Lau Halkjaer
Morten Dich JOHANSEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wartsila Svanehoj AS
Original Assignee
Wartsila Svanehoj 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 Wartsila Svanehoj AS filed Critical Wartsila Svanehoj AS
Publication of EP3377803A1 publication Critical patent/EP3377803A1/fr
Application granted granted Critical
Publication of EP3377803B1 publication Critical patent/EP3377803B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0391—Arrangement of valves, regulators, filters inside the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F17C2223/047—Localisation of the removal point in the liquid with a dip tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0171—Arrangement
    • F17C2227/0178—Arrangement in the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/015—Facilitating maintenance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships

Definitions

  • the present invention relates to a caisson for housing a pump in a fuel tank, the caisson comprising an elongate tubular element made from a fluid impermeable material and having an opening at a proximal end and an orifice at a distal end, a valve plate having a valve seat and being displaceable arranged on the caisson between a closing position in which the valve seat of the valve plate abuts the distal end of the caisson and closes the orifice, and an opening position in which the valve plate is arranged at a distance from the orifice to provide a flow through the orifice.
  • the caisson comprising one or more resilient members biasing the valve plate towards its opening position, and a closing mechanism for positioning the valve plate in its closing position.
  • US2015217987 A1 discloses a foot valve assembly for a submergible pump, including a substantially open-ended submergible pump housing having an interior volume.
  • the foot valve assembly also includes an actuator configured to be operated by pressurized fluid.
  • the foot valve assembly also includes a sealing mechanism positioned at the open end of the submergible pump housing and configured to alter fluid flow into the pump housing.
  • the sealing mechanism is attached to the actuator.
  • the actuator is configured to move the sealing mechanism between a first position and a second position, the first position being a closed position and the second position being an open position.
  • this device in US2015217987 A1 is a "fail-close" valve, being constructed so that a force is needed to open the valve, in some embodiments disclosed as comprising a manual mechanical override system.
  • An object of the invention is to apply a closing mechanism in a caisson for housing a pump in a container, such as a fuel tank.
  • the invention relates, in a fist aspect, to a caisson for housing a pump in a container, such as a fuel tank.
  • proximal end and distal end is preferably used to detonate the upper part and lower part of an embodiment, respectively.
  • the caisson comprises:
  • the caisson may also comprise:
  • biasing is typically meant that a force is to be applied to close the valve.
  • a caisson according to preferred embodiments is typically constructed so that a force is to be applied to close the valve.
  • a caisson may comprise a closing mechanism comprising a tie rod, a wire or chain, and a pulling mechanism for providing a pull in the wire.
  • the tie rod may be connected to the wire at a proximal end and to the valve plate at a distal end.
  • the wire or chain may extend from the proximal end of the tie rod to the pulling mechanism, so as to move the plate into its closing position when deploying the pulling mechanism.
  • the pulling mechanism preferably comprises a winch, a hydraulic operated piston, a pneumatic operated piston and/or a solenoid to which the wire or chain is connected.
  • the closing mechanism may comprise a hydraulic or pneumatic actuator.
  • the pneumatic actuator may further comprise a piston arranged in a cylinder arranged on the caisson, preferably at a lower end thereof.
  • the piston being hydraulically activated by supplying fluid to the cylinder to reciprocate between two longitudinal distanced positions in the cylinder.
  • the actuator may further comprise a tie rod connected to the piston at a proximal end and connected to the valve plate at a distal end. The reciprocating motion of the piston results in the movement of the plate between its opening and closing position.
  • the closing mechanism may comprise a solenoid
  • the solenoid may comprise a tie rod made from metal and an electrical coil encircling at least a part of a tie rod.
  • the tie rod may preferably be connected to the valve plate at a distal end. When an electrical current is applied to the electrical coil the tie rod is pulled into and maintained in the coil, and thereby moving the plate into its closing position.
  • embodiments according to the present invention may also comprise one or more resilient members, such as a mechanical spring, which biases the valve plate towards its opening position.
  • the force of the resilient members should preferably be sufficient enough to overcome the pressure difference from the tank in order to bias the valve plate towards its opening position.
  • one or more sealing elements may be provided in or at the distal end of the tubular element to provide a seal between the valve plate and the distal end of the tubular element and encircling the orifice.
  • a seal element may be provided in the valve plate to provide a seal between the valve seat and the distal end of the tubular element.
  • the seal element encircles the orifice, when the valve plate is in its closing position.
  • a caisson according to the present invention may comprise at the distal end of the tubular element a flange, in which the orifice may be provided.
  • the flange may preferably be releasable connected to the tubular element of the caisson.
  • the seal element may be arranged on or in the flange.
  • the length of the tubular element as measured between the distal and proximal end may preferably be between 1 and 30 meters, such as between 1 and 25 meters, such as between 1 and 8 meters, preferably between 1 and 5 meters, such as between 1 and 3 meters;
  • the diameter or equivalent diameter (4*Area/perimeter) of the tubular element may be constant throughout its length and is preferably between 0.25 and 1 meters;
  • the invention in another aspect of the invention, relates to a container for storing fuel, such as LNG, Butane, Ethane or Propane-gas, and the container may comprise a caisson according to first aspect of the invention.
  • the opening and closing can be controlled independently by the closing mechanism according to the present invention.
  • the closing mechanism may comprising a wire pull or a pneumatic, electrical or hydraulic pistons.
  • the resilient member assures an opening of the valve when for example the wire pull is relaxed.
  • FIG 1 and figure 2 illustrating a caisson for housing a pump in a container.
  • the container is typically a fuel tank 17 e.g. storing LNG, Butane, Ethane or Propane-gas on e.g. ship where the gas is used a fuel for the motor of the ship and/or motors for auxiliary equipment of the ship.
  • the container may be used for storing other items than fuel and may even be used for storing powdery substances.
  • the caisson comprising - or is made from - an elongate tubular element 1.
  • the tubular element 1 is made from a fluid impermeable material and having an opening at a proximal end and an orifice 2 and a valve seat 4 at a distal end.
  • the tubular element 1 may be a single piece, such welded in one piece and arranged in the container e.g. by welding.
  • the distal end of the tubular element 1 is the end being farthest away from the upper part of the container and the proximal end being closest to the upper part of the container.
  • the elongate tubular element has a valve plate 3 being displaceable arranged on the caisson 23 (in the embodiment shown being displaceable arranged on the elongate tubular member 1) between a closing position in which the valve plate 3 abuts the distal end of the caisson 23 (in the embodiment shown at the distal end of the elongate tubular element) at the valve seat 4 and closes the orifice 2, and an opening position in which the valve plate 3 is arranged at a distance from the orifice to provide a flow through the orifice.
  • valve plate 3 when valve plate 3 is in its opening position as shown in fig. 1 and fig.2 , fluid can flow from the interior of the container, through gap in-between the valve seat 4 and the valve plate 3 and through the orifice 2 thereby entering into the interior of the elongate tubular element 1.
  • an impeller may be arranged inside the elongate tubular element 1; the impeller may advantageously be arranged close to the orifice 2 on a rotational shaft 14 whereby upon rotation of the shaft 14, the impeller may suck - or pump - fluid from the interior of the container through the orifice 2 and deliver the fluid to the outside of the container through the upper opening of the elongate tubular element 1 (it is noted that although the upper opening of the elongate tubular element 1 is shown as opening into the exterior, the opening will in most case be connected to a distribution pipe).
  • the caission 23 also comprises one or more resilient members 5, such as a mechanical spring, which biases the valve plate 3 towards its opening position (please note that in fig. 2 , an arrow is used to symbolize the resilient members 5).
  • a resilient member 5 such as a mechanical spring
  • the movement of the valve plate 3 towards it closing position is provided in the embodiment shown in fig. 2 by closing mechanism 18 for positioning the valve plate 3 in its closing position.
  • the resilient members 5 are four mechanical springs, preferably geometrically equally disposed, which in case of a being disposed along a circular perimeter means disposed with 90 degrees in between each mechanical spring. This means that an external force is to be applied to close the valve.
  • a closing mechanism for closing the foot valve comprises a sufficient number of tie rods 7, in order to engage the valve seat 3 and move it vertically towards its closing position to the valve seat 4.
  • a wire or chain 8 is connected to a pulling mechanism 9, such as a winch.
  • the winch being a cylindrical element comprising a groove, when rotating around its axis the wire or the chain may be pulled.
  • the winch could be made from stainless steel and may be driven by an electric motor or a hydraulic pump.
  • the number of pulling mechanisms should correspond to the number of tie rods 7.
  • the tie rod 7 extends through a hole in the flange 16 to the valve plate 3 and is connected at the distal end to the valve plate 3.
  • the embodiment should have 2, 3, 4 or 5 tie rods equally distributed along the periphery of the flange 16.
  • the pulling mechanism 9 may provide a pull in the wire, and thereby applying a force to the valve plate 3 to move it vertically towards its closing position.
  • the grip from the tie rods will loosen op, as the fluid from the interior of the container will provide a pressure and thereby a force on the valve plate 3, keeping the valve plate in its closed position.
  • the embodiment also comprises one or more resilient members 5, such as a mechanical spring, which biases the valve plate 3 towards its opening position.
  • the force of the resilient members should be sufficient enough to overcome the pressure difference from the tank in order to bias the valve plate towards its opening position.
  • the closing mechanism comprises a hydraulic or pneumatic actuator 10, which could be made from stainless steel.
  • the closing mechanism further comprises a piston 19 arranged in a cylinder 20 arranged on the caisson. By supplying fluid to the cylinder 20 the piston hydraulically activates and reciprocates between two longitudinal distanced positions in the cylinder 20.
  • the fluid may be supplied from a hydraulic pump, comprising a sufficient number of valves, in order to move the piston in upwards and downwards direction.
  • the closing mechanism comprises a sufficient number of tie rods 7, in order to engage the valve seat 3 and move it vertically towards its closing position to the valve seat 4.
  • the number of pulling mechanisms should correspond to the number of tie rods 7.
  • the reciprocating motion of the piston 19 provides a pull in the tie rod 7 connected to the piston at a proximal end.
  • the tie rod 7 is connected at the distal end to the valve plate 3, through a hole in the flange 16.
  • the embodiment should have 2, 3, 4 or 5 tie rods equally distributed along the periphery of the flange 16.
  • the tie rod 7 provides a movement of the valve plate 3 between its opening and closing position, when the piston 19 is hydraulically activated.
  • the grip from the tie rods will loosen op, as the fluid from the interior of the container will provide a pressure and thereby a force on the valve plate 3, keeping the valve plate in its closed position.
  • the embodiment also comprises one or more resilient members 5, such as a mechanical spring, which biases the valve plate 3 towards its opening position.
  • the force of the resilient members should be sufficient enough to overcome the pressure difference from the tank in order to bias the valve plate towards its opening position.
  • FIG. 4 another embodiment of closing mechanism for closing the foot valve is disclosed.
  • the closing mechanism comprises a solenoid 21 and an electrical coil 11 encircling at least a part of the tie rod 7, made from metal.
  • the tie rod 7 is connected at the distal end to the valve plate 3, through a hole in the flange 16.
  • the embodiment should have 2, 3, 4 or 5 tie rods equally distributed along the periphery of the flange 16.
  • the tie rod 7 is pulled into and maintained in the coil 11 when an electrical current is applied to the electrical coil 11, and thereby moving the valve plate 3 towards its closing position.
  • the electrical current may be supplied by a power supply.
  • the grip from the tie rods will loosen op, as the fluid from the interior of the container will provide a pressure and thereby a force on the valve plate 3, keeping the valve plate in its closed position.
  • the embodiment also comprises one or more resilient members 5, such as a mechanical spring, which biases the valve plate 3 towards its opening position.
  • the force of the resilient members should be sufficient enough to overcome the pressure difference from the tank in order to bias the valve plate towards its opening position.
  • one or more sealing elements is provided in or at the distal end of the tubular element, to provide a seal between the valve plate and the distal end of the tubular element, which seal elements encircles the orifice, when the valve plate is in its closing position.
  • a seal element 22 is provided in the valve plate 3.
  • the seal element provides a seal between the valve seat 4 and the distal end of the tubular element 1 and encircling the orifice 2, when the valve plate 3 is in its closing position.
  • the seal element 22 is arranged on or in the flange 16, which preferably is releasable connected to the tubular element 1 of the caisson.
  • the seal element 22 may be in form of an O-ring as disclosed in e.g. fig. 6 .
  • the tubular element 1 may have a length between 1 and 8 meters (measured between the distal and proximal end).
  • the diameter or equivalent diameter (4*Area/perimeter) of the tubular element 1 is constant throughout its length and is between 0.25 and 1 meters.
  • the closing mechanism may be in the form of a rod with a eyebolt ,which are mounted firmly into the topside of the flange.
  • the rods of the eyebolts passes through bore holes in the flange 16, and wires or chains 8 are connected to the eye of the eyebolts.
  • wires or chains 8 are connected to the eye of the eyebolts.
  • a sealing may be added in the valve plate 3 or flange which would further reduce any flow through the valve when the valve seat is against the valve plate thus completing the flange sealing connection.
  • the upper part of the flange 16 is preferably welded to the elongate tubular element 1.
  • the lower part of the flange 16 is connected to the upper part of the flange with bolts equally distributed along the periphery of the flange 16.
  • the lower part of the flange 16 defines the size of the orifice 2.
  • Figure 6 further illustrates the foot valve in two different positions: the upper left hand side figure where the foot valve is in its open positon and the upper right hand side figure where the foot valve is in its closing position.
  • the tie rods 7 extends to a position above the proximal end of the elongate tubular member 1 and is connected to a pulling mechanism for providing a pull in the tie rods 7.
  • the pulling mechanism may comprise a nut 24 cooperating with a thread (not illustrated in fig. 7 ) provided on the tie rod 7 so that upon rotation of the nut 24, a pull is provided in the tie rod 7.
  • the nut 24 has a fixed vertical position e.g. by abutting a surface or otherwise maintained in fixed vertical position while allow rotation of the nut.
  • the pulling mechanism may comprise a hydraulic operated piston, a pneumatic operated piston and/or a solenoid to which the tie rods 7 are connected; the pulling mechanism is preferable arrange in position above the tank.
  • two such tie rods 7 are used which tie rods 7 are disposed with an angle of 180 degrees in between.
  • this tie rods are in a particular preferred embodiments, the tie rods are cylindrical typically with a diameter of 6-12 mm, such 6-10 mm, preferably 6 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Mechanically-Actuated Valves (AREA)

Claims (16)

  1. Caisson pour loger une pompe (6) dans un contenant, tel qu'un réservoir de combustible, le caisson comprenant
    - un élément tubulaire oblong (1) constitué d'un matériau imperméable aux fluides et possédant une ouverture au niveau d'une extrémité proximale et un orifice (2) et un siège de clapet (4) au niveau d'une extrémité distale,
    - une plaque de clapet (3) étant agencée de manière à pouvoir se déplacer sur le caisson (23) entre
    - une position de fermeture dans laquelle la plaque de clapet (3) prend appuie sur l'extrémité distale du caisson (23) au niveau du siège de clapet (4) et ferme l'orifice (2), et
    - une position d'ouverture dans laquelle la plaque de clapet (3) est agencée à une distance de l'orifice pour fournir un écoulement à travers l'orifice,
    - un ou plusieurs éléments résilients (5),
    - un mécanisme de fermeture (18) pour positionner la plaque de clapet (3) dans sa position de fermeture
    caractérisé en ce que
    - le ou les éléments résilients (5) sollicitent la plaque de clapet (3) vers sa position d'ouverture, et
    ledit ou lesdits éléments résilients (5) comprenant chacun un ressort mécanique agissant pour déplacer la plaque de clapet (3) vers une position d'ouverture dans laquelle la plaque de clapet (3) est agencée à une distance de l'orifice (2) pour fournir un écoulement à travers l'orifice, une force devant ainsi être appliquée à la plaque de clapet pour déplacer la plaque de clapet vers sa position de fermeture.
  2. Caisson selon la revendication 1, ledit mécanisme de fermeture (18) comprenant
    un tirant (7), un fil métallique ou une chaîne (8) et un mécanisme de traction pour tirer le fil métallique, ledit tirant (7) se trouvant au niveau d'une extrémité proximale raccordée au fil métallique (8) raccordé à une extrémité distale de la plaque de clapet (3), le fil métallique ou la chaîne (8) s'étendant à partir de l'extrémité proximale du tirant (7) jusqu'au mécanisme de traction de façon à déplacer la plaque (3) dans sa position de fermeture lors du déploiement du mécanisme de traction.
  3. Caisson selon la revendication 2, ledit mécanisme de traction comprenant un treuil (9), un piston à commande hydraulique, un piston à commande pneumatique et/ou un solénoïde auquel le fil métallique ou la chaîne (8) est raccordé.
  4. Caisson selon la revendication 1, ledit mécanisme de fermeture comprenant un actionneur hydraulique ou pneumatique (10) comprenant un piston (19) agencé dans un cylindre (20) agencé sur le caisson, de préférence au niveau d'une extrémité inférieure de celui-ci, le piston pouvant être actionné par commande hydraulique en fournissant du fluide au cylindre (20) pour effectuer un mouvement de va-et-vient entre deux positions distantes longitudinales dans le cylindre (20), l'actionneur comprenant en outre un tirant (7) raccordé au piston au niveau d'une extrémité proximale et raccordé à la plaque de clapet (3) au niveau d'une extrémité distale afin que le mouvement de va-et-vient du piston (19) entraîne le déplacement de la plaque (3) entre ses positions d'ouverture et de fermeture.
  5. Caisson selon la revendication 1, ledit mécanisme de fermeture comprenant un solénoïde (21) comprenant un tirant (7) constitué d'un métal et une bobine électrique (11) entourant au moins une partie du tirant (7) comprenant une extrémité proximale du tirant (7), le tirant (7) étant raccordé à la plaque de clapet (3) au niveau distal afin que le tirant (7) soit tiré dans la bobine (11) et maintenu dans celle-ci lorsqu'un courant électrique est appliqué à la bobine électrique (11), de façon à déplacer la plaque (3) dans sa position de fermeture.
  6. Caisson selon l'une quelconque des revendications précédentes, un ou plusieurs éléments d'étanchéité (22) étant disposés dans ou au niveau de l'extrémité distale de l'élément tubulaire (1), afin de créer un joint d'étanchéité entre la plaque de clapet (3) et l'extrémité distale de l'élément tubulaire (1), lesquels éléments d'étanchéité entourent l'orifice (2), lorsque la plaque de clapet (3) est dans sa position de fermeture.
  7. Caisson selon l'une quelconque des revendications précédentes, un élément d'étanchéité (22) étant disposé dans la plaque de clapet (3) pour créer un joint d'étanchéité entre le siège de clapet (4) et l'extrémité distale de l'élément tubulaire (1), lesquels éléments d'étanchéité entourent l'orifice (2), lorsque la plaque de clapet (3) est dans sa position de fermeture.
  8. Caisson selon l'une quelconque des revendications précédentes, ledit caisson comprenant au niveau de l'extrémité distale de l'élément tubulaire (1) une bride (16) dans laquelle l'orifice (2) est disposé, la bride étant de préférence raccordée de manière amovible à l'élément tubulaire (1) du caisson.
  9. Caisson selon les revendications 6 et 8, ledit élément d'étanchéité (22) étant agencé sur ou dans la bride (16).
  10. Caisson selon l'une quelconque des revendications précédentes, ladite longueur de l'élément tubulaire (1) telle que mesurée entre les extrémités distale et proximale étant comprise entre 1 et 30 mètres, telle que comprise entre 1 et 25 mètres et telle que comprise entre 1 et 8 mètres, de préférence comprise entre 1 et 5 mètres, telle que comprise entre 1 et 3 mètres.
  11. Caisson selon l'une quelconque des revendications précédentes, ledit diamètre ou ledit diamètre équivalent (4*aire/périmètre) de l'élément tubulaire (1) étant constant sur toute sa longueur et étant compris entre 0,25 et 1 mètre.
  12. Caisson selon l'une quelconque des revendications précédentes, ledit mécanisme de fermeture (18) comprenant un tirant (7) et un mécanisme de traction, ledit tirant (7) s'étendant jusqu'à une position au-dessus de l'extrémité proximale de l'élément tubulaire oblong (1), position au niveau de laquelle le mécanisme de traction est situé et étant raccordé au mécanisme de traction pour obtenir une traction dans le tirant (7).
  13. Caisson selon la revendication 12, ledit mécanisme de traction comprenant un écrou (24) coopérant avec un filetage ménagé sur le tirant (7), afin que lors de la rotation de l'écrou (24), une traction soit créée dans le tirant (7).
  14. Caisson selon la revendication 12, ledit mécanisme de traction comprenant un piston à commande hydraulique, un piston à commande pneumatique et/ou un solénoïde auquel les tirants (7) sont raccordés.
  15. Caisson selon les revendications 12 à 14, deux tirants (7) étant utilisés, lesdits tirants (7) étant disposés avec un angle de 180 degrés entre eux.
  16. Contenant pour stocker du combustible, tel que du GNL, butane, éthane ou propane gazeux, ledit contenant comprenant un caisson selon l'une quelconque des revendications précédentes.
EP16804689.4A 2015-11-18 2016-11-18 Clapet de pied et caisson comprenant un clapet de pied Active EP3377803B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15195201 2015-11-18
PCT/DK2016/050376 WO2017084677A1 (fr) 2015-11-18 2016-11-18 Clapet de pied et caisson comprenant un clapet de pied

Publications (2)

Publication Number Publication Date
EP3377803A1 EP3377803A1 (fr) 2018-09-26
EP3377803B1 true EP3377803B1 (fr) 2020-01-15

Family

ID=54695507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16804689.4A Active EP3377803B1 (fr) 2015-11-18 2016-11-18 Clapet de pied et caisson comprenant un clapet de pied

Country Status (5)

Country Link
EP (1) EP3377803B1 (fr)
JP (1) JP6892870B2 (fr)
CN (1) CN108603635B (fr)
DK (1) DK3377803T3 (fr)
WO (1) WO2017084677A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963381A (en) * 1975-05-21 1976-06-15 Air Products And Chemicals, Inc. Double foot valve for cryogenic fluid containing tanks
US4080106A (en) * 1976-01-12 1978-03-21 International Telephone And Telegraph Corporation Purged valve assembly and method of sealing
JP3472379B2 (ja) * 1995-04-26 2003-12-02 日機装株式会社 サブマージドモータポンプの設置装置
CN202326061U (zh) * 2011-11-19 2012-07-11 山东天工岩土工程设备有限公司 制冷剂人力循环泵
MX2016006793A (es) * 2013-11-25 2017-01-11 Chart Inc Deflector de columna de bomba para bomba de gnl.
CN103629393A (zh) * 2013-12-26 2014-03-12 大连深蓝泵业有限公司 一种低温潜液泵配套锥面密封吸入底阀
CN103629394A (zh) * 2013-12-26 2014-03-12 大连深蓝泵业有限公司 一种低温潜液泵配套平面密封吸入底阀
WO2015120029A1 (fr) 2014-02-04 2015-08-13 Taylor-Wharton Cryogenics Llc Clapet de pied pour pompes submersibles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN108603635B (zh) 2021-05-28
CN108603635A (zh) 2018-09-28
WO2017084677A1 (fr) 2017-05-26
JP2018537639A (ja) 2018-12-20
EP3377803A1 (fr) 2018-09-26
JP6892870B2 (ja) 2021-06-23
DK3377803T3 (da) 2020-02-24

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