EP3638939A1 - Raccord pour milieux liquéfiés à très basse température - Google Patents

Raccord pour milieux liquéfiés à très basse température

Info

Publication number
EP3638939A1
EP3638939A1 EP18722521.4A EP18722521A EP3638939A1 EP 3638939 A1 EP3638939 A1 EP 3638939A1 EP 18722521 A EP18722521 A EP 18722521A EP 3638939 A1 EP3638939 A1 EP 3638939A1
Authority
EP
European Patent Office
Prior art keywords
coupling
socket
coupling socket
plug
front portion
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.)
Withdrawn
Application number
EP18722521.4A
Other languages
German (de)
English (en)
Inventor
Émilien Frère
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.)
Messer France SAS
Original Assignee
Messer France SAS
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 Messer France SAS filed Critical Messer France SAS
Publication of EP3638939A1 publication Critical patent/EP3638939A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
    • F16L37/36—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied with two lift valves being actuated to initiate the flow through the coupling after the two coupling parts are locked against withdrawal
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03006—Gas tanks
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L29/00—Joints with fluid cut-off means
    • F16L29/04—Joints with fluid cut-off means with a cut-off device in each of the two pipe ends, the cut-off devices being automatically opened when the coupling is applied
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
    • F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
    • F16L37/248—Bayonet-type couplings
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/1015—Couplings closed automatically when disengaging force exceeds preselected value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03006—Gas tanks
    • B60K2015/03019—Filling of gas tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03256—Fuel tanks characterised by special valves, the mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03256—Fuel tanks characterised by special valves, the mounting thereof
    • B60K2015/03282—Umbrella type valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/03335—Arrangements or special measures related to fuel tanks or fuel handling for fast filling of fuel tanks, e.g. specific filler pipes for pressurised fuelling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K2015/0458—Details of the tank inlet
    • B60K2015/048—Arrangements for sealing the fuel inlet during filling
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
    • F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
    • F16L27/0812—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with slide bearings
    • F16L27/082—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with slide bearings having axial sealing
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/141—Arrangements for the insulation of pipes or pipe systems in which the temperature of the medium is below that of the ambient temperature

Definitions

  • the invention relates to a coupling for cryogenic liquefied media for connecting fluid-carrying lines with a coupling socket and a coupling plug, each of which is equipped with a non-return valve which seals in the decoupled state arranged in the respective coupling part flow-through against the ingress of ambient air, but these automatically when connecting opens, wherein the coupling socket comprises a front portion having means for connecting to the coupling plug and a rear portion having the check valve, and the front portion is fixed, but releasably connected to the rear portion with the application of a predetermined tension.
  • Couplings for connecting lines for cryogenic liquefied media are known. Such couplings are used in particular when stationary tank installations are filled with cryogenic media from a tanker.
  • No. 4,335,747 A1 describes a coupling with a coupling plug and a coupling socket, each of which is equipped with a ball valve arranged at the end and is connected to one another by means of bolts.
  • the coupling process takes place here in the two steps of sealing outwards and connecting the flow devices.
  • separate shut-off valves for the flow lines are required.
  • the ball valves are not vacuum-insulated and the cryogenic liquid released during decoupling leads to the freezing of the ball valves.
  • the clutches described in DE 41 04 71 1 A1 and DE 42 19 912 A1 are constructed.
  • the subject of DE 195 1 6 029 C1 is a coupling for cryogenic liquefied media, are connected to each other in the vacuum-insulated line ends via a coupling plug and a coupling socket.
  • the line ends have on their front sides axially displaceable sealing means, which are displaced in each case by a spring in a position with separate coupling, in which they seal the respective line end against the ingress of ambient air.
  • the sealing means are automatically moved against the force of the spring in their respective opening position.
  • a flow path through the two coupling parts is opened, which is sealed to the outside and is isolated.
  • the coupling parts are screwed by means of a union nut. In this article, icing of the line ends in the decoupled state is avoided as well as icing of the coupling during operation.
  • US 2006/278839 A1 comprises a coupling for fluid media with a coupling plug and a coupling socket.
  • the coupling socket is in turn separated into two parts, which are interconnected by means of a clamping ring.
  • the clamping ring has one or more predetermined breaking points at which the coupling socket is separated into two parts in the application. Simultaneously with the breakage of the coupling socket, the flow connection in the coupling plug is automatically interrupted.
  • the known couplings have the disadvantage that they are insufficiently secured in a strong tensile stress due to a fault, such as after completion of a refueling operation from a tanker, the clutch was accidentally not solved and the tanker is moved with the line connected. In these cases, it may cause breakage of the coupling and / or pipe or hose pieces of the line and thus to an uncontrolled leakage of cryogenic liquid.
  • the lines can be secured by separate check valves, but these lead to an additional flow resistance, which reduces the flow of the cryogenic medium and increases the refueling duration.
  • a coupling for cryogenic liquefied media for connecting fluid-carrying lines is known, with a coupling socket and a coupling plug, which are each equipped with a check valve.
  • the check valves bring each other in the open position, thus allowing a flow of the cryogenic medium.
  • the coupling socket comprises a front portion to be connected to the coupling plug and a rear portion having the check valve, wherein the front portion is fixedly connected to the rear portion in the normal operating state by means of a permanent magnet.
  • a tensile force exceeding the holding force of the permanent magnet is exceeded, the part of the coupling socket from each other, at the same time, the check valves automatically move to their closed position.
  • the invention is therefore an object of the invention to provide a coupling for cryogenic media, which provides effective protection against tearing of the line and at the same time allows fast refueling and is easy to handle even in the design for high tensile stresses.
  • the coupling according to the invention has a three-part construction due to the separability of the front and rear sections of the coupling socket. Front and rear portions of the coupling socket are formed so that they separate from each other at a predetermined tension, whereupon the check valves in coupling socket and coupling plug move automatically into their respective closed position. This is inventively achieved in that the front and the rear portion of the coupling socket are firmly connected to each other with connecting means which have a predetermined breaking point.
  • the connecting means connect the sections directly to one another and are selected such that the axial limit stress at which the predetermined breaking point breaks corresponds to the required maximum tensile stress. With the destruction of the connecting means separate the sections of Coupling box from each other and the check valves automatically go to their closed position. The uncontrolled outflow of cryogenic medium is effectively prevented in this way.
  • the limit value of the tensile stress above which the front section separates from the rear section of the coupling socket as intended is chosen according to the circumstances, in particular it must be lower than the tensile strength of the other components of the clutch or its associated line, but sufficiently large, to be able to withstand usual loads occurring during a normal refueling operation.
  • the coupling according to the invention is particularly suitable for establishing a flow connection between two lines for liquid nitrogen or for another cryogenic liquefied gas, such as liquefied noble gas or natural gas.
  • the coupling according to the invention is suitable as a quick coupling for refueling a equipped with a reservoir for a cryogenic liquefied medium refrigerated vehicle from a stationary storage tank, as they allow due to their simple and low flow resistance structure having a fast and straightforward connecting the lines and rapid refueling , yet provides high protection against uncontrolled leakage of cryogenic liquid.
  • the present invention Compared to the connection with a permanent magnet, the present invention has the advantage that even couplings with a high required tensile stress after the occurrence of an application, in which therefore the two sections of the coupling socket were solved because of exceeding the maximum tensile stress from each other, can be easily reassembled , In this case, only the remainders of the broken fasteners are to be removed and replaced by new connecting means.
  • a particularly preferred embodiment of the invention provides that the front portion is connected to the rear portion by means of screws, each having a predetermined breaking point.
  • the screws are passed through holes in a flange of a portion of the coupling socket and screwed into a bore provided with an internal thread in a flange of the other portion of the coupling socket.
  • special screws are used, which have a predetermined breaking point, for example, a section with a reduced throughput. Knife on which the screws tear when applying a predetermined maximum axial tensile stress (limit load).
  • a plurality of screws for example, three to eight screws, arranged at uniform angular intervals rotationally symmetrical in the two flanges.
  • the means for connecting the front section of the coupling socket to the coupling plug preferably include a bayonet closure or a screw closure, for example a cap nut, which is pulled onto a thread which is externally attached to the coupling plug or the front section. In this way, the front portion of the coupling socket and coupling plug remain firmly connected even after detachment of the rear portion.
  • the check valve of the coupling stretcher and the check valve of the coupling socket is preferably each equipped with an axially displaceable closing body, for example in the form of a plate or a ball, against the action of a restoring force of the flow-through opening of the respective coupling part sealing closed state in an opening the flow opening opening state is displaceable.
  • the closing elements are designed such that they mutually shift when connecting the coupling parts in their respective opening state and thereby release a flow path between the lines which are interconnected by the coupling.
  • a sealing element is arranged at the front portion and / or the rear portion of the coupling socket, for example, a sealing ring, which ensures the gas-tightness of the coupling connection.
  • the sealing ring is preferably formed temperature-resistant and made of PTFE, for example.
  • This protective shield is, for example, a sleeve of metal or plastic arranged concentrically around the connecting elements of the coupling socket to the coupling plug, which separates the connecting elements, for example in the event that the parts of the coupling socket separate during an emergency release and the coupling socket drops to the floor, protected against damage or contamination, so that a rapid reconnection of coupling socket and coupling plug is possible.
  • a likewise advantageous embodiment of the invention is characterized in that the coupling socket is rotatably connected to a conduit for a cryogenic medium.
  • the invention takes into account the fact that, although lines for cryogenic media usually have a certain flexibility, but are difficult to turn in itself. Since a rotation of coupling socket and coupling plug is inevitable at least in a bayonet connection, the rotatable arrangement facilitates the handling of the coupling. For example, a fixed, for example, by welding, soldering or screwing, connected to a line for the cryogenic medium connection sleeve rotatably received in the housing of the coupling socket or the coupling plug.
  • Fig. 2 the assembled coupling socket and the coupling plug of
  • FIG. 3 The coupling of FIG. 1 and FIG. 2 in the closed state
  • Fig. 4 The coupling of Fig. 1 to 3 after a tearing protection triggering
  • FIG. 5 A coupling according to the invention in another embodiment.
  • the coupling shown in Fig. 1 to 4 designed as a quick coupling has a coupling socket 10 with a front portion 1 1 and a connectable with this rear portion 12.
  • the equipped with a connecting piece 13 for connecting to a line, not shown here for a cryogenic medium, such as a liquid nitrogen line, equipped rear section 12 has a housing 14, in the interior of which a check valve 15 is arranged.
  • the non-return valve 15 comprises a closure body 16 with a closing plate 17 which, when the coupling is open, frictionally seals a mouth 18 of the rear portion 12 under the action of a compression spring 21 in a gas-tight manner.
  • the compression spring 21 extends radially on the outside of the closure body 1 6 between the closing plate 17 and a fixedly mounted in the interior of the housing 14 valve seat 19 which has a central bore 20 through which the closure body 1 6 is guided axially movable limited.
  • a flange 22nd At the opposite end of the connecting piece 13 of the housing 14 is for connection to the front portion 1 1, a flange 22nd
  • the front section 1 1 of the coupling socket 10 comprises a housing 24 which, at its end facing the rear section 12, has a flange 26 equipped with a PTFE sealing ring 25, which is welded, for example, to the housing 24.
  • On the front part of the front portion 1 1 connecting elements for fixed, but releasable connection to a coupling connector 30 of the coupling are arranged; In the exemplary embodiment, these are slots 28, 29 of a bayonet closure.
  • Another, arranged in the interior of the front portion 1 1 sealing ring 31 made of PTFE is used to ensure the gas-tightness after making a connection with the coupling connector 30.
  • the coupling socket 10 composed of coupling socket 10 and coupling plug 30 is shown in FIG.
  • the coupling plug 30 shown in Fig. 2 comprises a housing 37, which is equipped for producing a fixed, but releasable plug-in rotary connection with the coupling socket 10 with buttons 38, 39, which correspond to the slots 28, 29.
  • a check valve 40 is disposed in the interior of the coupling plug 30.
  • the check valve 40 is similar to the check valve 15 of the coupling socket 10 constructed and includes a closure body 41 with a closing plate 42 which closes in the state shown in Fig. 2, an orifice 43 of the coupling plug 30 under the action of a compression spring 46 frictionally gas-tight.
  • the compression spring 46 extends radially on the outside of the closure body 41 between closing plate 42 and a valve seat 44 fixedly mounted in the housing 37, which is equipped with a central bore 45, through which the closure body is guided axially limited movement. Furthermore, the housing 37 has a connecting piece 48 for connection to a line, not shown here, for a cryogenic medium.
  • Fig. 3 the coupling is shown in the intended coupled state.
  • the buttons 38, 39 of the bayonet lock engage with the corresponding slots 28, 29 and thus establish a firm connection between the coupling parts 10, 30.
  • other types for mating and connecting the coupling socket and the coupling plug are also within the scope of the invention, such as, for example, the connection described in more detail in DE 195 1 6 029 C1 by means of a union nut.
  • the closing plates 17, 42 are equipped with plungers 50, 51, which are pressed against each other during mating of coupling socket 10 and coupling plug 30 and, as indicated in Fig.
  • a clutch is shown after the occurrence of a tearing protection triggering event.
  • an anti-tearing event here is understood an event in which an axial tensile force acts on the coupling, which is greater than the tensile strength of the predetermined breaking points 35 of the screws 33.
  • the screws 33 are destroyed and the rear portion 12 of The coupling socket 10 separates from the front section 11, which is still fixedly connected to the coupling plug 30 by the bayonet closure, whereby the contact between the plungers 50, 51 of the closing bodies 16, 41 of the check valves 15, 40 is lost and the check valves 15, 40 automatically move to their closed position under the action of the compression springs 21, 46 (as indicated by arrows in Fig.
  • FIG. 5 differs from the clutch shown in FIGS. 1 to 4 only by additional elements on the coupling socket 56.
  • the coupling plug 30 is identical and therefore provided with the same reference numeral.
  • elements of the Coupling socket 56 which are the same effect to elements of the coupling socket 10, marked with the same reference numerals.
  • the coupling socket 56 is equipped with a protective shield 57 in the form of a sleeve which extends concentrically around the front portion 1 1 of the coupling socket 56 to protect the parts of the housing 24 of the front portion 1 1 in the case of mechanical effects, for example, in a fall of the Coupling socket 56 after an emergency opening of the coupling.
  • the shield 57 prevents damage to the front portion 1 1, allowing the rapid restoration of the coupling connection after an emergency opening.
  • the coupling socket 10 is connected to a line, not shown here, for a cryogenic medium, for example by welding or by a threaded connection.
  • a line not shown here
  • customary conduits for cryogenic medium are usually flexible, they are difficult to twist in themselves.
  • the bayonet connection shown here requires a quarter turn of the two coupling parts 10, 30 against each other, the coupling socket 56 - instead of a fixedly mounted on the housing or designed in one piece with this connecting piece 13 of the coupling of Figs. 1 to 4 - equipped with a connection piece 59 which is rotatably mounted on a housing 60 of the coupling socket 56.
  • the preferred solid, such as by welding, with a line not shown here for a cryogenic medium connected connecting piece 59 has a circumferential projection 61, with which the connecting piece of the coupling plug 30 opposite end face 62 of the housing 60 is supported.
  • a sealing ring 63 made of PTFE is provided in a groove of the end face 62.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

L'invention concerne un raccord pour des milieux liquéfiés à très basse température. Le raccord comporte une partie femelle (10) et une partie mâle (30) pouvant être reliée à celle-ci, qui sont équipées chacune d'un clapet anti-retour (15, 40). La partie femelle (10) comporte une section avant (11) présentant des moyens pour la liaison à la partie mâle (30) et une section arrière (12) présentant le clapet anti-retour (15). Selon l'invention, la section avant (11) est reliée à la section arrière (12) au moyen de vis (33) qui présentent un point de rupture et qui se rompent lorsqu'une contrainte de traction prédéfinie est dépassée. Ce faisant, les sections (11, 12) se séparent l'une de l'autre et les clapets anti-retour (15, 40) se déplacent automatiquement dans la position de fermeture.
EP18722521.4A 2017-06-13 2018-05-04 Raccord pour milieux liquéfiés à très basse température Withdrawn EP3638939A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017005588.2A DE102017005588A1 (de) 2017-06-13 2017-06-13 Kupplung für tiefkalte verflüssigte Medien
PCT/EP2018/061560 WO2018228749A1 (fr) 2017-06-13 2018-05-04 Raccord pour milieux liquéfiés à très basse température

Publications (1)

Publication Number Publication Date
EP3638939A1 true EP3638939A1 (fr) 2020-04-22

Family

ID=62116463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18722521.4A Withdrawn EP3638939A1 (fr) 2017-06-13 2018-05-04 Raccord pour milieux liquéfiés à très basse température

Country Status (5)

Country Link
US (1) US20200182389A1 (fr)
EP (1) EP3638939A1 (fr)
CN (1) CN110537049A (fr)
DE (1) DE102017005588A1 (fr)
WO (1) WO2018228749A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6685246B2 (ja) * 2017-02-10 2020-04-22 東京貿易エンジニアリング株式会社 流体荷役装置用の緊急離脱機構
EP3670998B1 (fr) * 2018-12-18 2022-11-16 Nexans Accouplement pour conduites de fluide
US11435019B2 (en) * 2019-07-25 2022-09-06 Eaton Intelligent Power Limited Valve guide with integral assembly support
CN110873249A (zh) * 2019-12-07 2020-03-10 杭州大立过滤设备有限公司 一种防止更换时漏液的接头
CN111247365A (zh) * 2019-12-16 2020-06-05 苏州信运比尔精密机械有限公司 一种管路快接装置
CN113074287A (zh) * 2020-01-06 2021-07-06 中国石油大学(华东) 一种新型的穿梭油轮艉部受油口紧急脱开装置
US11384883B2 (en) 2020-01-31 2022-07-12 General Electric Company Cryogenic transfer line coupling assembly
CN112879695A (zh) * 2021-01-14 2021-06-01 艾泰斯热系统研发（上海）有限公司 一种快接对阀及冷却系统
GB2606388B (en) * 2021-05-06 2024-02-28 Alpha Process Controls International Ltd Coupling
FR3125321B1 (fr) 2021-07-19 2024-04-05 Air Liquide Dispositif d’accouplement et de détachement d’urgence
JP7372606B2 (ja) * 2022-01-05 2023-11-01 株式会社タツノ 安全継手
DE102022130095A1 (de) 2022-11-15 2024-05-16 Bayerische Motoren Werke Aktiengesellschaft Betankungsstation zum Betanken eines Fahrzeugs und Verfahren zum Betanken eines Fahrzeugs

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446245A (en) * 1966-02-28 1969-05-27 Srm Co Threaded fluid coupling
JPS5663178A (en) 1979-10-26 1981-05-29 Aisin Seiki Co Ltd Hermetic joint
DE4104711C2 (de) 1991-02-15 1995-08-24 Linde Ag Kupplung für vakuumisolierte Rohr- oder Schlauchleitungen und Verwendung einer derartigen Kupplung
DE4219912A1 (de) 1992-06-17 1993-12-23 Linde Ag Kupplung für vakuumisolierte Rohr- oder Schlauchleitungen und Verfahren zum Kaltfahren eines Speicherbehälters unter Verwendung dieser Kupplung
DE19516029C1 (de) 1995-05-04 1996-10-10 Messer Griesheim Gmbh Kupplung für tiefkalte verflüssigte Medien
DE29609071U1 (de) * 1996-05-10 1996-12-19 Roman Seliger Gmbh & Co Kg Sicherheitskupplung-System
US7117892B2 (en) 2003-10-24 2006-10-10 Hiltap Fittings, Ltd. Quick disconnect valve assembly
US9010814B2 (en) * 2008-04-15 2015-04-21 Marshall Excelsior Co. Quick fill fluid connector
US9279529B2 (en) * 2010-10-13 2016-03-08 Parker-Hannifin Corporation Breakaway thread-lock quick connect/disconnect coupling
FR2984990B1 (fr) * 2011-12-23 2014-02-28 Staubli Sa Ets Raccord destine a realiser la jonction amovible de deux canalisations de fluide
DE102013100483A1 (de) * 2013-01-17 2014-07-17 Andreas von Keitz Nottrennkupplung
DE102013004731B4 (de) 2013-03-19 2014-10-23 Messer France S.A.S Kupplung für tiefkalte verflüssigte Medien
CN204785218U (zh) * 2015-05-20 2015-11-18 山东航天电子技术研究所 一种大口径在轨维修液路断接器

Also Published As

Publication number Publication date
DE102017005588A1 (de) 2018-12-13
WO2018228749A1 (fr) 2018-12-20
CN110537049A (zh) 2019-12-03
US20200182389A1 (en) 2020-06-11

Similar Documents

Publication Publication Date Title
EP3638939A1 (fr) Raccord pour milieux liquéfiés à très basse température
EP2946135B1 (fr) Raccord à séparation de sûreté
EP1745231B1 (fr) Dispositif d'accouplement d'une bouteille de gaz sous pression
DE102013004731B4 (de) Kupplung für tiefkalte verflüssigte Medien
DE2717135B2 (de) Einrichtung zum Trennen einer Flüssigkeitsleitung mit großem Querschnitt
DE102005011601A1 (de) Abreißkupplung
DE102007043381A1 (de) Flanschelement
EP2715203B1 (fr) Accouplement separable pour une conduite de liquide
EP2095003B1 (fr) Bloc de raccordement pour conduites de fluide
DE102018119089B4 (de) Zuführeinheit für Schweißbolzen mit Anschlusskupplung und Verfahren zum Verbinden/Trennen von Zuführeinheiten für Schweißbolzen
DE102021105817A1 (de) Verbindungsvorrichtung zum Verbinden eines ersten Leitungsendes mit einem zweiten Leitungsende
DE102016008106A1 (de) Tankventil
DE202007018625U1 (de) Schneidbrenner mit einem Brennerkopf, der eine auswechselbare Schneiddüse aufnimmt
EP0989058B1 (fr) Soupape de purge à fermeture automatique pour un réservoir d'hélicoptère
DE2909743A1 (de) Vorrichtung zum gleichzeitigen kuppeln bzw. entkuppeln von mehreren stroemungsmittel- und/oder elektrischen leitungen
DE202005014275U1 (de) Abreißkupplung
EP4237724A1 (fr) Dispositif de sécurité
EP2757300A1 (fr) Couplage
DE2549447C2 (de) In eine Rohrleitung einsetzbares selbsttätiges Schließventil
DE102021006572A1 (de) Verbindungsvorrichtung zum Verbinden eines ersten Leitungsendes mit einem zweiten Leitungsende
DE102008054841A1 (de) Gasentnahmearmatur mit Betätigungsverriegelung
DE202005012602U1 (de) Auslöseelement zur Verwendung in einem Sicherungssystem, Sicherungssystem zum Verbinden und Lösen zweier Kupplungshälften sowie Abreißkupplung mit einem Sicherungssystem
CH186624A (de) Vorrichtung zum Kuppeln von Leitungen und Leitungsanschlüssen.
DE102015107715A1 (de) Schnellschlussventil
WO2015010930A1 (fr) Élément d'accouplement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20200113

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20200804