CN108603635A - Foot valve and caisson including foot valve - Google Patents

Foot valve and caisson including foot valve Download PDF

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Publication number
CN108603635A
CN108603635A CN201680067070.6A CN201680067070A CN108603635A CN 108603635 A CN108603635 A CN 108603635A CN 201680067070 A CN201680067070 A CN 201680067070A CN 108603635 A CN108603635 A CN 108603635A
Authority
CN
China
Prior art keywords
caisson
valve plate
pull rod
aperture
closed position
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.)
Granted
Application number
CN201680067070.6A
Other languages
Chinese (zh)
Other versions
CN108603635B (en
Inventor
劳·哈尔克加尔
莫滕·迪克·约翰森
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.)
Denmark Vanhoe Co.,Ltd.
Original Assignee
Tile Tin Wan Ho Co Ltd
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 Tile Tin Wan Ho Co Ltd filed Critical Tile Tin Wan Ho Co Ltd
Publication of CN108603635A publication Critical patent/CN108603635A/en
Application granted granted Critical
Publication of CN108603635B publication Critical patent/CN108603635B/en
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

Abstract

The present invention relates to a kind of caissons for accommodating pump in the container of such as fuel tank.Caisson includes：The elongated tubular member made of the material of impermeable fluid, elongated tubular member have the opening in proximal end and the aperture in far-end；Valve plate with valve seat and is displaceably arranged on caisson between a closed position and a open position, and in closed position, the valve seat of valve plate against the distal end of caisson and closes aperture；In open position, valve plate is arranged in away from the flowing provided at the certain distance of aperture through aperture.Caisson further includes the one or more elastic components for biasing valve plate towards its open position, and the closing organ for valve plate to be located in its closed position.The container can be used for storing fuel, such as liquefied natural gas, butane, ethane or propane gas.

Description

Foot valve and caisson including foot valve
Technical field
The present invention relates to a kind of caisson for accommodating in fuel tank pump, which includes elongated tubular element, should Tubular element is made of the material of impermeable fluid and with the opening positioned at proximal end and the aperture positioned at distal end, valve plate tool There is valve seat and is displaceably arranged on caisson between a closed position and a open position, at closed position, the valve of valve plate Seat is against the distal end of caisson and closes aperture, and in open position, valve plate is arranged in away from logical to provide at the certain distance of aperture Cross the flowing in aperture.Caisson includes one or more elastic components for biasing valve plate to its open position and is used for valve plate It is located in the closing organ of its closed position.
Background technology
Ship is needed especially with liquefied natural gas (LNG), the ship of butane, ethane or propane gas as fuel Gas is stored in chest.Gas is usually pumped into the motor of consumption gas from chest.Pump is usually placed in from chest top It extends in the caisson of cabinet interior.Usually require that the pump for pumping gas can maintain, and in order to avoid emptying chest And it in order to accomplish this point, has attempted to provide closing organ, i.e. foot valve in caisson bottom.By applying this foot valve, The inside of caisson can be closed from the inside of chest, and the pump being therefore disposed in caisson can ideally retract from caisson, together When still gas is maintained in chest under stress.
Previous foot valve scheme is risen in a manner of identical with the check-valves by disk (or being ball in some cases) Effect, any flowing for leaning against and being prevented on aperture through the aperture of sitting crosslegged.Disk is maintained at valve seat by the weight of itself On, and be closing spring in some cases.When the pressure difference of two disk sides is relatively high, disk is lifted from valve seat, thus Flowing by aperture is possible now.
Although this is feasible scheme, inventors have realised that in closing the chest for storing gas In the case of caisson, there may be following disadvantages for the program：It cannot ensure to prevent valve system since the pressure in chest is more than only It returns the opening pressure of valve and unintentionally opens up.
US2015217987A1 discloses a kind of foot-operated valve module for immersible pump comprising with internal capacity, The substantially diving pump case of open-ended.Foot-operated valve module further includes the actuator for being configured to be operated by pressurized fluid.It is foot-operated Valve module further includes sealing mechanism, which, which is located at the opening end of diving pump case and is configured to change, enters pump case Fluid flowing.Sealing mechanism is attached to actuator.Actuator be configured to make sealing mechanism first position and the second position it Between move, first position is closed position, and the second position is open position.
However, this device in US2015217987A1 is " failure closing " valve, it is configured to need power to open Valve is construed as including armstrong's patent override system in some disclosed embodiments.
Goal of the invention
The purpose of the present invention is closing organ is applied in the caisson for accommodating pump in container (such as fuel tank).
Invention content
The present invention is related to the caisson for accommodating pump in container (such as fuel tank) in first aspect.
Hereinafter, term is proximally and distally preferred for indicating respectively the upper and lower part of embodiment.
Caisson includes：
Elongated tubular member is made of the material of impermeable fluid, and has opening in proximal end and have in distal end There are aperture and valve seat；
Valve plate is displaceably arranged on caisson between a closed position and a open position, in closed position, valve plate Against the distal end of caisson and close aperture at valve seat, in open position, valve plate be arranged in away from the certain distance of aperture to carry For use by the flowing in aperture.
Caisson can also include：
One or more elastic components bias valve plate towards the open position of valve plate；
Closing organ, for valve plate to be located in its closed position.
Being generally meant that by " biasing " will apply force to close valve.Therefore, according to the usual structure of the caisson of preferred embodiment It causes to make capable be applied in close valve.
Caisson according to preferred embodiment may include closing organ, which includes pull rod, metal wire or chain, And the pulling mechanism for providing pulling force in metal wire.Pull rod can be connected to metal wire in proximal end, and in distal end Place is connected to valve plate.Metal wire or chain can extend to pulling mechanism from the proximal end of pull rod, so as to when using pulling mechanism Plate is moved to its closed position.
Pulling mechanism preferably includes the capstan winch being connect with metal wire or chain, the piston of hydraulic operation, pneumatically-operated work Plug and/or solenoid.
Another embodiment of closing organ may include hydraulic pressure or pneumatic actuator.Pneumatic actuator can be wrapped further The piston in the cylinder body being arranged on caisson is included, piston is preferably in the lower end of cylinder body.Preferably, by cylinder body supply fluid, Piston is hydraulically started, to be moved back and forth between two longitudinally spaced positions in cylinder body.Actuator can be into one Step is included in proximal end and is connected to piston and is connected to the pull rod of valve plate in far-end.The reciprocating motion of piston causes plate at it Movement between open position and closed position.
In some embodiments, closing organ may include solenoid, and solenoid may include pull rod made of metal With at least part of electric coil around pull rod.Pull rod preferably can be connected to valve plate in far-end.It is applied when to electric coil When adding electric current, pull rod is drawn into and is maintained in coil, to make plate be moved to its closed position.
Additionally or alternatively, it can also include according to an embodiment of the invention one or more elastic components, such as machine Tool spring biases valve plate towards the open position of valve plate.The power of elastic component preferably sufficiently large should come from case to overcome The pressure difference of son, to bias valve plate towards its open position.
Preferably, one or more sealing elements can be arranged in the distal end of tubular element or far-end, in valve plate Between the distal end of tubular element and surround orifice provides sealing.
Preferably, sealing element can be arranged in valve plate to provide sealing between valve seat and the distal end of tubular element. Preferably, when valve plate is in its closed position, sealing element surround orifice.
Preferably, caisson according to the present invention may include the flange in the far-end of tubular element, and aperture can be arranged In flange.Flange can preferably releasably be connected to the tubular element of caisson.
Preferably, sealing element can be arranged on flange or in flange.
Preferably, the length of the tubular element measured between proximally and distally can preferably between 1 meter and 30 meters, Such as between 1 meter and 25 meters, such as between 1 meter and 8 meters, preferably between 1 meter and 5 meters, such as 1 meter and 3 meters it Between.
Preferably, the diameter of tubular element or equivalent diameter (4* area/perimeters) can be constant over the whole length , and preferably between 0.25 meter and 1 meter.
In another aspect of this invention, the present invention relates to a kind of container for storing fuel, fuel is such as LNG, fourth Alkane, ethane or propane gas, and the container may include caisson according to a first aspect of the present invention.
Therefore, (its opening and closing is the top side and bottom side of ball by disk or in some cases with the valve of the prior art Between pressure difference control) compare, opening and closing can be independently controlled by closing organ according to the present invention.As herein Described, closing organ may include wire grip or pneumatic, electronic or hydraulic piston.When for example wire grip relaxes, elastic structure Part ensures the opening of valve.
In current context, multiple terms have been used in a manner of common for the skilled person；However, will be under Face illustrates some of terms：
Foot valve：Be preferred for indicating caisson lower end the aperture/opening led in caisson and hermetically close aperture/ The combination of the component of opening.Foot valve can also include flange and closing organ on caisson.
Caisson is preferred for indicating the immersion watertight babinet in container (such as fuel tank).Caisson is contained for that will flow Body (such as liquid or gas) is pumped to the pump of the motor of consumption gas from chest.
Description of the drawings
The present invention and particularly preferred embodiment is more fully described now with reference to attached drawing.Attached drawing, which is shown, realizes this hair Bright mode, and it is not interpreted other possible embodiments that limitation is fallen within the scope of the accompanying claims.
Fig. 1 schematically illustrates the cross-sectional view of the fuel tank including caisson according to the preferred embodiment of the invention；
Fig. 2 schematically illustrates the cross section of caisson according to the preferred embodiment of the invention；Caisson is illustrated in left figure Foot valve is opened, and the closing of caisson foot valve is illustrated in right figure；
Fig. 3,4 and 5 schematically illustrate the different embodiments of the closing organ for closing the foot valve in caisson Cross-sectional view；
Fig. 6 schematically illustrates another embodiment of caisson according to the present invention；Fig. 6 a show that foot valve is opened, Fig. 6 b show that foot valve is closed, and Fig. 6 c are the elevation cross-sectional views of Fig. 6 a；With
Fig. 7 schematically illustrates another embodiment, and wherein pull rod extends to above the proximal end of elongated tubular member Position.
Specific implementation mode
With reference to figure 1 and Fig. 2, it illustrates the caissons for accommodating pump in a reservoir.The container is typically for example in ship The fuel tank 17 of upper storage LNG, butane, ethane or propane gas, gas is used as ship motor on ship and/or ship assists The fuel of the motor of equipment.But the container can be used for storing other articles in addition to fuel, it might even be possible to for storing up Deposit powdered substance.
As depicted in figs. 1 and 2, caisson includes or is made of elongated tubular member 1.Tubular element 1 is by impermeable fluid Material be made, and proximal end with opening and distal end with aperture 2 and valve seat 4.Tubular element 1 can be single part, Such as integrally welded part and for example by weld arrangement in a reservoir.
Referring to Figures 1 and 2, the distal end of tubular element 1 is one end farthest from the top of container, and proximal end is near container Top.
Elongated tubular member has valve plate 3, and it is heavy which is displaceably arranged between a closed position and a open position It (is shown as displaceably being arranged in elongated tubular member 1 in the shown embodiment) on case 23, at closed position, valve plate 3 Against the distal end of caisson 23 (being shown as in the shown embodiment in the distal end of elongated tubular member) and hole is closed at valve seat 4 Mouth 2；In open position, valve plate 3 is arranged in away from the flowing provided at the certain distance of aperture through aperture.Therefore, when valve plate 3 When in open position as depicted in figs. 1 and 2, fluid can flow through the gap between valve seat 4 and valve plate 3 from the inside of container And aperture 2 is flowed through, hence into the inside of elongated tubular member 1.
Same as depicted in figs. 1 and 2, impeller can be arranged in elongated tubular member 1；Impeller can be advantageously arranged in Close to the position in aperture 2 in rotary shaft 14, thus when axis 14 rotates, impeller can by aperture 2 from container internal suction or Pumping fluid, and external container is transported fluid into (although it should be noted that thin by the upper opening of elongated tubular member 1 The upper opening of long tubular elements 1 is illustrated as leading to external opening, but the opening will be in most cases connected to point Piping).
Caisson 23 further includes one or more elastic components 5, such as mechanical spring, and elastic component opens valve plate 3 towards it Location bias (note that in fig. 2, arrow is for indicating elastic component 5).By the way that valve plate 3 is biased towards its open position, valve It can be considered as " normal " to open, unless applying a force to valve plate so that valve plate is shifted to its closed position.In the embodiment shown in Figure 2 Provide makes valve plate 3 towards the movement of its closed position by the closing organ 18 for valve plate 3 to be located in its closed position.
In the especially preferred embodiments, elastic component 5 is four mechanical springs, is preferably geometrically being arranged in the same manner, This means between each mechanical spring in the case where being circumferentially arranged in 90 degree of settings.This means that apply external force To close valve.
One embodiment of the closing organ for closing foot valve is disclosed in Figure 5.Closing organ includes counting enough The pull rod 7 of amount, to engage valve seat 3 and it to be vertically moved to valve seat 4 towards its closed position.Metal wire or chain 8 are from drawing The proximal end of bar 7 is connected to the pulling mechanism 9 of such as capstan winch.Capstan winch is the cylindrical elements for including groove, when rotating about the axis thereof When, metal wire or chain can be pulled.Capstan winch can be made of stainless steel, and can be driven by motor or hydraulic pump.It draws The quantity of motivation structure should be corresponding with the quantity of pull rod 7.Pull rod 7 passes through the hole in flange 16 to extend to valve plate 3, and remote Valve plate 3 is connected at end.Preferably, embodiment should have equally distributed 2,3,4 or 5 drawings in periphery along flange 16 Bar.Pulling mechanism 9 can provide pulling force in metal wire, and thus to 3 applied force of valve plate so that valve plate is vertically closed towards it Closed position moves.
When valve plate 3 is in the position completely closed, one or more sealing elements are set in the distal end of tubular element 1 22 (such as O-rings), to provide sealing between valve plate and the distal end of tubular element 1.Because the fluid inside container will Pressure is provided and thus provides power on valve plate 3, valve plate is maintained at its closed position, so the holding from pull rod will be put Pine.
The embodiment further includes one or more elastic components 5, such as mechanical spring, by valve plate 3 towards the opening of valve plate Location bias.The power of elastic component should be enough to overcome the pressure difference from chest, to bias valve plate towards its open position.
The different embodiments of the closing organ for closing foot valve are disclosed in figure 3.Closing organ include hydraulic pressure or Pneumatic actuator 10 can be made of stainless steel.Closing organ further includes the piston 19 in the cylinder body 20 being arranged on caisson. By to 20 supply fluid of cylinder body, start to piston hydraulic pressure and between two longitudinally spaced positions in cylinder body 20 it is reciprocal Movement.Fluid can be supplied from the hydraulic pump including sufficient amount of valve, to move piston along upward and downward direction.
Closing organ includes sufficient amount of pull rod 7, to engage valve seat 3 and vertically to move it towards its closed position To valve seat 4.The quantity of pulling mechanism should be corresponding with the quantity of pull rod 7.
The reciprocating motion of piston 19 is that proximal end is connected in the pull rod 7 of piston and provides pulling force.Pull rod 7 is worn in far-end The hole crossed in flange 16 is connected to valve plate 3.Preferably, embodiment should have along the periphery of flange 16 equally distributed 2,3,4 Or 5 pull rods.
When piston 19 is by hydraulic starting, pull rod 7 provides movement of the valve plate 3 between its opening and closing position.Due to Fluid inside container will provide pressure and then provide power on valve plate 3, valve plate has been maintained at its closed position, since It will loosen from the holding of pull rod.
The embodiment further includes one or more elastic components 5, such as mechanical spring, by valve plate 3 towards its open position Biasing.The power of elastic component should be enough to overcome the pressure difference from chest, to bias valve plate towards its open position.
Another embodiment of the closing organ for closing foot valve is disclosed in Fig. 4.Closing organ includes helical Pipe 21 and at least part of electric coil 11 for surrounding pull rod 7 made of metal.Pull rod 7 is passed through in far-end in flange 16 Hole is connected to valve plate 3.Preferably, which should have along equally distributed 2,3,4 or 5 pull rods in the periphery of flange 16.
When applying electric current to electric coil 11, pull rod 7 is drawn into and is maintained in coil 11, to make valve plate 3 towards its pass Closed position moves.Electric current can be provided by power supply.Since the fluid inside container will provide pressure and then provide power in valve On plate 3, valve plate is maintained at its closed position, so the holding from pull rod will be loosened.
The embodiment further includes one or more elastic components 5, such as mechanical spring, by valve plate 3 towards its open position Biasing.The power of elastic component should be enough to overcome the pressure difference from chest, to bias valve plate towards its open position.
Preferably, one or more sealing elements are arranged in the distal end of tubular element or far-end, to work as at valve plate Sealing, the sealing element surround orifice are provided when its closed position between valve plate and the distal end of tubular element.
Additionally or alternatively, sealing element 22 is arranged in valve plate 3.When valve plate 3 is in its closed position, sealing member Part is between valve seat 4 and the distal end of tubular element 1 and surround orifice 2 provides sealing.Sealing element 22 is arranged on flange 16 Or in flange 16, flange 16 is preferably releasably connected to the tubular element 1 of caisson.Such as Fig. 6 may be used in sealing element 22 The form of disclosed O-ring.
In Fig. 1, tubular element 1 can have the length (being measured between proximally and distally) between 1 meter and 8 meters. The diameter or equivalent diameter (4* area/perimeters) of tubular element 1 are constant over the whole length and in 0.25 meter and 1 meter Between.
As disclosed in Fig. 6, closing organ can be the form of the bar with eyebolt, be fixedly secured to flange Top side.The bar of eyebolt passes through the drilling in flange 16, and metal wire or chain 8 are connected to the eye of eyebolt. When needing to close foot valve, pulls metal wire and pull up valve plate 3 and lean on to valve seat 4.It can increase in valve plate 3 or flange Sealing element, this will be further reduced any flowing by valve when valve seat is against valve plate, to complete the sealed connection of flange. The top of flange 16 is preferably welded to elongated tubular member 1.The lower part of flange 16 passes through equally distributed along the periphery of flange 16 It is bolted to the top of flange.In the embodiment shown in fig. 6, the lower part of flange 16 limits the size in aperture 2.
Fig. 6 further illustrates the foot valve in two different locations：Foot valve is in its dozen in the figure in the upper left corner Open position, foot valve is in its closed position in the figure in the upper right corner.
In further embodiment as shown in Figure 7, pull rod 7 extends to the position above the proximal end of elongated tubular member 1 It sets, and is connected to the pulling mechanism for providing pulling force in pull rod 7.Pulling mechanism may include and be arranged on pull rod 7 The nut 24 of screw thread cooperation (not shown in FIG. 7) provide pulling force in pull rod 7 to when nut 24 is rotated.It is worth note Meaning, nut 24 have fixed vertical position, such as fixed vertical by against surface or being otherwise maintained at Position, while nut being allowed to rotate.Optionally, pulling mechanism may include the piston, pneumatic for the hydraulic operation being connect with pull rod 7 The piston and/or solenoid of operation；Pulling mechanism is preferably placed in the position above chest.In specific preferred embodiment, Using two such pull rods 7, wherein pull rod 7 is arranged with the angle for being in each other 180 degree.Further, these pull rods are in spy In other preferred embodiment, pull rod is typically a diameter of 6-12mm, such as 6-10mm, the preferably cylinder of 6mm.
Although having been combined specific embodiment describes the present invention, should not be construed as being limited in any way Given example.The scope of the present invention is illustrated by the appended claims.In the context of claim, term " comprising " or "comprising" is not excluded for other possible element or steps.In addition, referring to that the reference of "a" or "an" etc. should not be solved It is interpreted as excluding multiple.The use about the reference numeral of element shown in attached drawing also should not be construed as limited in the claims The scope of the present invention.In addition, each feature referred in different claims can be advantageously combined, and wanted in different rights Refer to that the combination that feature is not precluded in these features is impossible or unfavorable in asking.
Reference marker inventory
1 (caisson) elongated tubular member
2 apertures
3 valve plates
4 valve seats
5 springs
6 impellers
7 pull rods
8 metal wires or chain
9 capstan winches
10 hydraulic pressure or pneumatic actuator
11 electric coils
12 magnetic brakes
14 rotary shafts
15 bolts
16 flanges
17 fuel tanks
18 closing organs
19 pistons
20 cylinder bodies
21 solenoids
22 sealing elements
23 caissons
24 nuts.

Claims (17)

1. a kind of caisson for accommodating pump (6) in the container of such as fuel tank, the caisson include：
Elongated tubular member (1) is made of the material of impermeable fluid and in proximal end with opening and in far-end With aperture (2) and valve seat (4),
Valve plate (3) is arranged on caisson (23) and is displaceable between a closed position and a open position, described Closed position, the valve plate (3) against the distal end of the caisson (23) and close the aperture (2) at the valve seat (4), In the open position, the valve plate (3) be arranged in away from the aperture certain distance to provide the flowing by the aperture,
Wherein, the caisson includes：
One or more elastic components (5), the elastic component bias the valve plate (3) towards its open position, and
Closing organ (18), for the valve plate (3) to be located in its closed position.
2. caisson according to claim 1, wherein the closing organ (18) includes pull rod (7), metal wire or chain (8), and in metal wire provide pulling force pulling mechanism, wherein the pull rod (7) is connected to the gold in proximal end Belong to line (8) and be connected to the valve plate (3), the metal wire or chain (8) in far-end and extends from the proximal end of the pull rod (7) To the pulling mechanism, to which the plate (3) is moved to its closed position when using the pulling mechanism.
3. caisson according to claim 2, wherein the pulling mechanism includes being connect with the metal wire or chain (8) Capstan winch (9), the piston of hydraulic operation, pneumatically-operated piston and/or solenoid.
4. caisson according to claim 1, wherein the closing organ includes hydraulic pressure or pneumatic actuator (10), the cause Dynamic device includes the piston (19) in the cylinder body (20) being arranged on the caisson, and the piston is preferably under the cylinder body End, by the cylinder body (20) supply fluid, the piston can hydraulic starting, so as to two in the cylinder body (20) It is moved back and forth between a longitudinally spaced position, the actuator further includes in proximal end being connected to the piston and in far-end It is connected to the pull rod (7) of the valve plate (3) so that the reciprocating motion of the piston (19) causes the plate (3) in its open position Set the movement between closed position.
5. caisson according to claim 1, wherein the closing organ includes solenoid (21), solenoid (21) packet Include pull rod made of metal (7) and at least part of electric coil (11) around the pull rod (7), described at least part Include the proximal end of the pull rod (7), the pull rod (7) is connected to the valve plate (3) in far-end so that when electric current is applied to institute The pull rod (7) is drawn into and is maintained in the coil (11) when stating electric coil (11), to make the plate (3) be moved to it Closed position.
6. caisson according to any one of the preceding claims, wherein the elastic component (5) is made of mechanical spring.
7. caisson according to any one of the preceding claims, wherein in the distal end of the tubular element (1) or distally The one or more sealing elements (22) of place's setting, to work as the valve plate (3) at its closed position, in the valve plate (3) and Sealing is provided between the distal end of the tubular element (1), the sealing element is around the aperture (2).
8. caisson according to any one of the preceding claims, wherein the setting sealing element (22) in the valve plate (3), To work as the valve plate (3) at its closed position, provided between the valve seat (4) and the distal end of the tubular element (1) Sealing, the sealing element is around the aperture (2).
9. caisson according to any one of the preceding claims, wherein the caisson is included in the tubular element (1) The flange (16) of far-end, the aperture (2) are arranged in the flange, and the flange is preferably releasably connected to described heavy The tubular element (1) of case.
10. according to the caisson described in claim 7 and 9, wherein the sealing element (22) is arranged on flange (16) or flange (16) in.
11. caisson according to any one of the preceding claims, wherein measured between the distal end and the proximal end The length of the tubular element (1) is between 1 meter and 30 meters, such as between 1 meter and 25 meters, such as between 1 meter and 8 meters, It is preferred that between 1 meter and 5 meters, such as between 1 meter and 3 meters.
12. caisson according to any one of the preceding claims, wherein the diameter or equivalent diameter of the tubular element (1) (4* area/perimeters) is constant over the whole length and between 0.25 meter and 1 meter.
13. caisson according to any one of the preceding claims, wherein the closing organ (18) includes pull rod (7) and draws Motivation structure, the pull rod (7) extends to the position above the proximal end of the elongated tubular member (1), described at the position Pulling mechanism is positioned and is connected to the pulling mechanism to provide pulling force in the pull rod (7).
14. caisson according to claim 13, wherein the pulling mechanism includes nut (24), the nut exists with setting Screw-thread fit on the pull rod (7) so that pulling force is provided when the nut (24) are rotated in the pull rod (7).
15. caisson according to claim 13, wherein the pulling mechanism includes the hydraulic pressure behaviour being connect with the pull rod (7) The piston of work, pneumatically-operated piston and/or solenoid.
16. according to the caisson described in claim 13 to 15, wherein using two pull rods (7), two pull rods (7) are with each other Between in 180 degree angle be arranged.
17. a kind of container for storing fuel, the fuel is such as liquefied natural gas (LNG), butane, ethane or propane flammable gas Body, the container include caisson according to any one of the preceding claims.
CN201680067070.6A 2015-11-18 2016-11-18 Foot valve and caisson comprising a foot valve Active CN108603635B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP15195201 2015-11-18
EP15195201.7 2015-11-18
PCT/DK2016/050376 WO2017084677A1 (en) 2015-11-18 2016-11-18 Foot valve and caisson comprising a foot valve

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CN108603635A true CN108603635A (en) 2018-09-28
CN108603635B CN108603635B (en) 2021-05-28

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CN201680067070.6A Active CN108603635B (en) 2015-11-18 2016-11-18 Foot valve and caisson comprising a foot valve

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EP (1) EP3377803B1 (en)
JP (1) JP6892870B2 (en)
CN (1) CN108603635B (en)
DK (1) DK3377803T3 (en)
WO (1) WO2017084677A1 (en)

Citations (5)

* 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
JPH08296581A (en) * 1995-04-26 1996-11-12 Nikkiso Co Ltd Submerged motor pump installing device
CN202326061U (en) * 2011-11-19 2012-07-11 山东天工岩土工程设备有限公司 Manual circulating pump of refrigerant
US20150184645A1 (en) * 2013-11-25 2015-07-02 Chart Inc. Pump Column Baffle for LNG Pump
US20150217987A1 (en) * 2014-02-04 2015-08-06 Taylor-Wharton Cryogenics Llc Foot valve for submergible pumps

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080106A (en) * 1976-01-12 1978-03-21 International Telephone And Telegraph Corporation Purged valve assembly and method of sealing
CN103629393A (en) * 2013-12-26 2014-03-12 大连深蓝泵业有限公司 Conical surface sealing suction bottom valve matched with low-temperature immersed pump
CN103629394A (en) * 2013-12-26 2014-03-12 大连深蓝泵业有限公司 Planar sealing suction bottom valve matched with low-temperature immersed pump

Patent Citations (5)

* 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
JPH08296581A (en) * 1995-04-26 1996-11-12 Nikkiso Co Ltd Submerged motor pump installing device
CN202326061U (en) * 2011-11-19 2012-07-11 山东天工岩土工程设备有限公司 Manual circulating pump of refrigerant
US20150184645A1 (en) * 2013-11-25 2015-07-02 Chart Inc. Pump Column Baffle for LNG Pump
US20150217987A1 (en) * 2014-02-04 2015-08-06 Taylor-Wharton Cryogenics Llc Foot valve for submergible pumps

Also Published As

Publication number Publication date
DK3377803T3 (en) 2020-02-24
WO2017084677A1 (en) 2017-05-26
CN108603635B (en) 2021-05-28
JP6892870B2 (en) 2021-06-23
JP2018537639A (en) 2018-12-20
EP3377803A1 (en) 2018-09-26
EP3377803B1 (en) 2020-01-15

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Address after: DanMai Sven Strappe

Patentee after: Denmark Vanhoe Co.,Ltd.

Address before: DanMai Sven Strappe

Patentee before: WARTSILA SVANEHOJ A/S