EP1089936B1 - Gelenkarm zum transfer von flüssigkeiten mit einer gleichgewichtsfeder in "u"-form - Google Patents

Gelenkarm zum transfer von flüssigkeiten mit einer gleichgewichtsfeder in "u"-form Download PDF

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Publication number
EP1089936B1
EP1089936B1 EP99910439A EP99910439A EP1089936B1 EP 1089936 B1 EP1089936 B1 EP 1089936B1 EP 99910439 A EP99910439 A EP 99910439A EP 99910439 A EP99910439 A EP 99910439A EP 1089936 B1 EP1089936 B1 EP 1089936B1
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EP
European Patent Office
Prior art keywords
shaped spring
axis
balancing
spring
arm
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.)
Expired - Lifetime
Application number
EP99910439A
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English (en)
French (fr)
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EP1089936A1 (de
Inventor
Jacques Stephant
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.)
FMC Technologies SAS
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FMC Technologies SAS
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Publication date
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Publication of EP1089936A1 publication Critical patent/EP1089936A1/de
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Publication of EP1089936B1 publication Critical patent/EP1089936B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/002—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes using articulated pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D9/00—Apparatus or devices for transferring liquids when loading or unloading ships
    • B67D9/02—Apparatus or devices for transferring liquids when loading or unloading ships using articulated pipes

Definitions

  • the invention relates to the transfer of fluid, liquid or gas, between a base and a mobile tank, for example a tank boarded a truck or railroad car.
  • Fluid products can be of very varied types, for example but not limited to petroleum products, such as petrol or gas notably liquefied petroleum (LPG), or chemicals, acids or solvents in particular.
  • petroleum products such as petrol or gas notably liquefied petroleum (LPG), or chemicals, acids or solvents in particular.
  • LPG liquefied petroleum
  • these fluid products are mainly liquid, but are generally in equilibrium with a gas phase, so that, rather than talking about liquid products, it's more accurate to talk about products fluids; sometimes it is necessary to transfer these two phases separately liquid and gaseous.
  • connection between the base, on the one hand, and the flange connection of the mobile tank, on the other hand can only be achieved by a device with a certain deformation capacity.
  • the devices transfer of fluid products often called transfer arms or loading / unloading, are thus of two possible types: either they have a flexible part, which poses possible problems of resistance to aging, either they consist of a succession of at least two tubular sections articulated to each other.
  • the fluid transfer arms must therefore, in practice, be brought into an appropriate configuration when preparing a transfer operation, so as to bring a free end of this arm (the other end being generally permanently connected to the base) opposite of the connection flange of the tank concerned.
  • This operation is generally performed by an operator, and it is desirable that the operator or not be forced to make too much effort.
  • a motorized control of a liquid product transfer arm which avoids all effort to operators, however, is difficult to implement, given the difficulty of automatically bringing the free end of the arm opposite precisely from the connection flange; that supposes a great mastery of the arm configuration control automaton, and therefore training possibly long and costly for the operator. In any event, a such motorized control involves significant costs.
  • a first category of balancing device uses one or several counterweights which are fixed opposite the arm part to be balanced. This solution, quite effective, is nevertheless cumbersome in the convenient.
  • balancing device involves springs, for example steel torsion springs, in cylindrical helix the more often, attached to or inside the rotating joint; he can too they are torsion springs in steel in Archimedes spiral or in spiral hyperbolic, see for example US 4,537,233 A.
  • springs for example steel torsion springs, in cylindrical helix the more often, attached to or inside the rotating joint; he can too they are torsion springs in steel in Archimedes spiral or in spiral hyperbolic, see for example US 4,537,233 A.
  • balancing device uses a spring steel compression, often located along the part of the arm to be balanced or in a device called balancing box or spring box, fixed on the part of arms to balance.
  • Yet another category of balancing device uses steel tension springs often also located along the arm.
  • balancing device uses jacks, for example nitrogen, pneumatic, hydraulic, or electric.
  • the object of the invention is to overcome the aforementioned drawbacks.
  • an articulated product transfer arm fluids, liquids or gases comprising two tubular sections connected one to the other by a joint rotating on a horizontal axis, and a balancing device connected to each of the tubular sections to compensate for variations in torque around the axis of the rotary joint during a relative rotation between the sections, characterized in that this balancing device comprises a shaped spring U-shaped, having two branches, the ends of which are each connected to a respective section.
  • this U-shaped spring can act as well in approaching, or moving away from these branches, so that this spring has a substantially symmetrical behavior when the tubular sections move relative to each other on either side a rest configuration.
  • Figures 1 to 3 partially show a transfer arm fluid, liquid or gaseous products, comprising a first tubular section 1, a second tubular section 2, a rotary joint 3 with a horizontal axis, and a balancing device 4 connected to each of the tubular sections to compensate torque variations (due to gravity) around the axis of the rotary joint during a relative rotation between the sections around this horizontal axis.
  • the first tubular section 1 is horizontal and has a 90 ° elbow designated under the reference 5, connected to a second rotary joint 6 with a vertical axis.
  • This second rotary joint 6 is at its tower connected to the rotary joint 3 with a horizontal axis by a second right angle bend 7.
  • This second tubular section 2 in the configuration shown in the figures, horizontal, parallel to the first tubular section 1.
  • This second tubular section 2 ends at its left end with a third 90 ° elbow marked 8 which is connected to the rotary joint 3.
  • the second tubular section 2 can take any orientation angular (inside of course of a given clearance), as well in azimuth only in elevation, relative to the first tubular section 1.
  • elbow 7 which is connected to each of the rotary joints 3 and 6 in itself constitutes a tubular section, which is connected to the second tubular section 2 by a rotary joint with a horizontal axis.
  • the balancing device 4 is connected to each of these sections tubular 2 and 7. It is therefore indirectly that this balancing device is connected to the tubular section 1, but, insofar as the rotary joint 6 has a vertical axis, no balancing effort is necessary to take into account variations in angular position during rotation of this rotating joint.
  • This balancing device essentially consists of a spring 10 of U shape, having two branches 11 and 12, in practice parallel one to the other in the resting configuration of the spring, the ends 11A and 12A of which are each connected to one, respectively, of sections 2 and 7.
  • each of these ends of the spring in U shape is articulated on its respective section, around an axis parallel to the axis of the rotary joint.
  • the connection of the ends of this spring to the section can be done without freedom in rotation, but by itself deformation of these ends.
  • At least one of the ends of the branches of the U-shaped spring has a plurality of housings for the reception of a member intended for its connection to the respective tubular section, for example the aforementioned pin 13 or 14.
  • each end of the branches of the spring comprises such a plurality of housings.
  • each of the ends of the branches of the spring comprises a block 15 or 16 in which a plurality of four housings is provided cylindrical, the axis of which is of course perpendicular to the plane of the branches 11 and 12.
  • These blocks 15 and 16 are, in the example of FIG. 4, referred to ends of the branches of the spring 10, more specifically on the internal side of these branches.
  • the or the housing (s) intended to receive the connecting members such as pins 13 and 14 can be arranged directly in these ends 11A and 12A.
  • blocks 15 and 16 may be provided, opposite blocks 15 and 16 with respect to these ends 11A and 12A, to be fixed there by bolts, not shown, passing through these ends 11A and 12A.
  • blocks 15 and 16 can be part of a single piece surrounding the ends 11A and 12A of the U-shaped piece.
  • One and / or the other of blocks 15 and 16 can be placed outside the U.
  • the two tubular sections 7 and 8 + 2 connected by the rotating joint horizontal axis marked 3 are each provided on either side with this seal turning, of lugs 20 and 21. These are advantageously shaped so that the two arms 11 and 12 of the shaped spring of U are substantially arranged in the same plane perpendicular to the axis of the rotary joint, that is to say in a plane perpendicular to the plane of the Figure 2, or in a plane parallel to the plane of Figure 1.
  • these legs can thus be consisting, as regards the tab 20, of a veil, possibly provided with reinforcements 20A and 20B (see FIG. 1), having a bend, visible in FIG. 3, facing up and to the left, so that its end fitted with a ear 25 is located offset from the (lower) portion of this fastening tab 20 which is fixed on the section 8 + 2 itself, in the direction of the other section, namely section 7.
  • the other leg attachment 21 it consists of two ears offset parallel to the axis horizontal of the rotary joint 3, and intended to receive between their ends the end 12A of the U-shaped part 10.
  • the tab 20 is directly fixed to the section 2, and not in the immediate vicinity of the rotary joint 3.
  • the connecting member 14 which serves to connect the end 11A of the part in U to the lug designated under the general reference 20 comprises advantageously a journal 26, adapted to journal in the room end 25, while being able to receive by screwed fixing, the connecting member such as pin 14.
  • the U-shaped spring is advantageously made in one composite material. These are, for example, free glass or carbon coated with resin and tooled (mold) to obtain the shape of the U final in baking.
  • the spring after steaming goes into the finishing phase, by deburring, finishing, drilling, installation of a possible finishing sheath in silicone (or other depending on market availability). All that's left is to install the stainless steel blocks 15, 16, 17, 18 by bolting.
  • this U-shaped spring is advantageously coated a clean silicone sheath to effectively protect the material of which the U-shaped part against various external aggressions.
  • the invention thus leads to a much more efficient balancing than the simple assistance provided by known devices while being simple, reliable and inexpensive.
  • the balancing obtained is indeed very close to very good balancing achieved by counterweights but which has been previously said that they led to annoying congestion during maneuvers.
  • the balancing device proposed by the invention is shown on a large scale. However, it should be noted that compared to an entire liquid product transfer arm, which may include several sections, and only a part of which is shown in FIGS. 1 to 3, the invention leads to a much smaller footprint than in the solutions known.
  • the balancing proposed by the invention does not provide of overload on the part to be balanced, by comparison with a box spring.
  • the balancing performed by the device proposed by the invention acts on the same way, depending on whether the tubular section 2 is oriented downwards and towards the top of the same angle: there is therefore a symmetry of operation.
  • the balancing device proposed above allows, in a travel of 20 ° above and 20 ° below the horizontal reference position, arm balancing less than 5 kg in absolute value.
  • the weight of this spring is much less than all of the known balancing systems.
  • this spring cannot break when the arm falls under its own weight as can be seen during even when adding heavy overloads to the arm: this spring can be deteriorate but not to the point of dropping the load suddenly.
  • stops can be provided to limit the approximation (or even the spacing) of the branches of the U.
  • the spacing of these branches a limitation can also be obtained by means of a cable fixed to these branches.
  • the attachment of the proposed device is simple to implement and does not requires no special tools.
  • the balance adjustment is simple so that a fairly small range of springs is sufficient to ensure balancing a wide variety of transfer arms.
  • the device described above has been shown to be insensitive to variations of usual climatic temperatures. It is moreover, due to its design (notably due to the composite nature of the U-shaped part) not very sensitive to ultraviolet rays. No protective paint is therefore necessary.
  • the balancing device of the invention very significantly reduces the need for spare parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Joints Allowing Movement (AREA)
  • Springs (AREA)
  • Level Indicators Using A Float (AREA)
  • Coating Apparatus (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Claims (7)

  1. Angelenkter Transferarm für fluide, flüssige oder gasförmige Produkte, der zwei röhrenförmige Abschnitte (7, 8+2) aufweist, die miteinander durch ein Drehgelenk (3) einer horizontalen Achse verbunden sind, und eine Ausgleichsvorrichtung (4, 10), die an jedem der röhrenförmigen Abschnitte verbunden ist, um Änderungen des Drehmoments um die Achse des Drehgelenks bei einer relativen Drehung zwischen den Abschnitten zu kompensieren, dadurch gekennzeichnet, dass diese Ausgleichsvorrichtung eine Feder (10) aufweist in Form eines U, das zwei Zweige (11, 12) aufweist, wobei jedes Ende (11A, 12A) mit einem jeweiligen Abschnitt verbunden ist.
  2. Arm nach Anspruch 1, dadurch gekennzeichnet, dass jedes der Enden der Feder in Form eines U auf seinem jeweiligen Abschnitt angelenkt ist (13, 14), um eine Achse, die parallel zur Achse des Drehgelenks ist.
  3. Arm nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zumindest eines der Enden der Feder in Form eines U eine Mehrzahl von Lagerungen (15, 16) aufweist für die Aufnahme eines Mittels (13, 14) für seine Verbindung mit dem jeweiligen röhrenförmigen Abschnitt.
  4. Arm nach Anspruch 3, dadurch gekennzeichnet, dass jedes der Enden der Arme der Feder in Form eines U eine Mehrzahl von Lagerungen aufweist für die Aufnahme eines Mittels für seine Verbindung an dem jeweiligen röhrenförmigen Abschnitt.
  5. Arm nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die zwei röhrenförmigen Abschnitte jeweils beidseitig des Drehgelenks mit Befestigungslaschen (20, 21) versehen sind, die derart angepasst sind, dass die zwei Zweige (11, 12) der Feder in Form eines U im Wesentlichen in einer selben Ebene angeordnet sind, die senkrecht zur Achse des Drehgelenks ist.
  6. Arm nach irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Feder (10) in Form eines U aus einem Verbundmaterial ist.
  7. Arm nach Anspruch 6, dadurch gekennzeichnet, dass die Feder (10) in Form eines U überzogen ist mit einer Silikonhülle.
EP99910439A 1998-06-09 1999-03-26 Gelenkarm zum transfer von flüssigkeiten mit einer gleichgewichtsfeder in "u"-form Expired - Lifetime EP1089936B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9807227 1998-06-09
FR9807227A FR2779422B1 (fr) 1998-06-09 1998-06-09 Bras articule de transfert de produits fluides a equilibrage par ressort en u
PCT/FR1999/000709 WO1999064344A1 (fr) 1998-06-09 1999-03-26 Bras articule de transfert de produits fluides a equilibrage par ressort en u

Publications (2)

Publication Number Publication Date
EP1089936A1 EP1089936A1 (de) 2001-04-11
EP1089936B1 true EP1089936B1 (de) 2003-01-08

Family

ID=9527174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99910439A Expired - Lifetime EP1089936B1 (de) 1998-06-09 1999-03-26 Gelenkarm zum transfer von flüssigkeiten mit einer gleichgewichtsfeder in "u"-form

Country Status (19)

Country Link
EP (1) EP1089936B1 (de)
JP (1) JP2002517362A (de)
KR (1) KR100613987B1 (de)
CN (1) CN1093838C (de)
AT (1) ATE230704T1 (de)
AU (1) AU742137B2 (de)
BR (1) BR9911524A (de)
CA (1) CA2334982C (de)
CZ (1) CZ20004585A3 (de)
DE (1) DE69904819T2 (de)
ES (1) ES2189400T3 (de)
FR (1) FR2779422B1 (de)
NO (1) NO20006245L (de)
PL (1) PL344480A1 (de)
RO (1) RO118582B1 (de)
SK (1) SK18682000A3 (de)
TR (1) TR200003663T2 (de)
WO (1) WO1999064344A1 (de)
ZA (1) ZA200006991B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2794738B1 (fr) 1999-06-14 2002-02-01 Fmc Europe Bras articule de transfert de produits fluides a equilibrage par ressort dans un grand debattement
CN103423585B (zh) * 2013-08-23 2015-08-26 连云港远洋流体装卸设备有限公司 吊机式船用低温流体加注设备的管道转向机构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038714A (en) * 1961-05-29 1962-06-12 Dover Corp Torsional spring balance unit
US4537233A (en) * 1983-06-21 1985-08-27 Continental Emsco Company Spring balance assembly
DE3477558D1 (en) * 1984-07-04 1989-05-11 Meyerinck Wolfgang Von Flange for refueling systems

Also Published As

Publication number Publication date
KR100613987B1 (ko) 2006-08-21
CZ20004585A3 (cs) 2001-11-14
NO20006245D0 (no) 2000-12-08
FR2779422A1 (fr) 1999-12-10
PL344480A1 (en) 2001-11-05
ATE230704T1 (de) 2003-01-15
ES2189400T3 (es) 2003-07-01
AU2939599A (en) 1999-12-30
BR9911524A (pt) 2001-03-27
CN1305434A (zh) 2001-07-25
SK18682000A3 (sk) 2001-12-03
ZA200006991B (en) 2002-05-25
JP2002517362A (ja) 2002-06-18
WO1999064344A1 (fr) 1999-12-16
CA2334982A1 (en) 1999-12-16
AU742137B2 (en) 2001-12-20
FR2779422B1 (fr) 2000-09-01
RO118582B1 (ro) 2003-07-30
NO20006245L (no) 2001-01-30
EP1089936A1 (de) 2001-04-11
CA2334982C (en) 2009-12-08
DE69904819T2 (de) 2003-09-04
DE69904819D1 (de) 2003-02-13
CN1093838C (zh) 2002-11-06
KR20010071431A (ko) 2001-07-28
TR200003663T2 (tr) 2001-05-21

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