• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    METHOD FOR CONNECTING A FIRST COUPLING PIECE AND A SECOND COUPLING PIECE OF A SUBMARINE COUPLING ARRAY This is a method for connecting a first coupling part (1a) and a second coupling part (1b) of a coupling arrangement. submarine (1) with each other, the first coupling part having at least one sealing surface (12a) which is adapted to limit with a corresponding sealing surface (12b) of the second coupling part to form a seal waterproof and pressure between the coupling parts. Said sealing surfaces are brought into contact with each other by moving the coupling parts towards each other. The filtered sea water is fed through a channel (25) in one of said coupling parts and in a space (14) between the coupling parts during said displacement of the coupling parts towards each other, said filtered sea water is discharged from said space and into the surroundings while it flows over said sealing surfaces to thereby prevent particles and dirt from being trapped between the sealing surfaces. (...).
    公开号:BR102012010478B1
    申请号:R102012010478-4
    申请日:2012-05-03
    公开日:2021-02-09
    发明作者:Svend Erik Rocke
    申请人:Vetco Gray Scandinavia. As；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The present invention relates to a method for connecting a first coupling part and a second coupling part of a subsea coupling arrangement to each other, the first coupling part being provided with at least one sealing surface that is adapted to limit with a corresponding sealing surface of the second coupling part to form a waterproof and pressure seal between the coupling parts when the coupling parts have been connected to each other, wherein said sealing surface of the coupling the first coupling part and the corresponding sealing surface of the second coupling part are brought into contact with each other by displacing the coupling parts towards each other. BACKGROUND OF THE INVENTION
    [002] An underwater coupling arrangement can, for example, be designed as an electrical connector or a hydraulic connector. An undersea coupling arrangement typically comprises two coupling parts that must be moved in contact with each other in order to establish an electrical or hydraulic connection. In order to prevent seawater from entering the coupling arrangement, the coupling parts are usually provided with sealing surfaces that are adapted to limit each other to form a waterproof and pressure seal between the coupling parts when the coupling parts have been connected to each other. When the coupling parts are moved in contact with each other, there is a risk that particles and dirt in the surrounding sea water, such as, for example, sand or silt, will be trapped between the sealing surfaces of the coupling parts. If particles and / or dirt are trapped between the sealing surfaces, the sealing efficiency can be impaired and the sealing surfaces can be damaged. This problem is particularly serious when the sealing surfaces are made of metallic material. DESCRIPTION OF THE INVENTION
    [003] The purpose of the present invention is to provide a method that makes it possible to overcome the problem mentioned above.
    [004] According to the invention, this objective is achieved by a method that has the functions defined in claim 1.
    [005] The method of the present invention comprises the step of feeding filtered sea water into a space between a first coupling part and a second coupling part of an underwater coupling arrangement during the displacement of the coupling parts to engage with each other. another, being that filtered sea water is fed into said space through a channel provided in one of the coupling parts. Filtered seawater is discharged from said space to the surroundings while flowing over the sealing surfaces of the coupling parts, thereby preventing particles and dirt from being trapped between a sealing surface of the first coupling part and a corresponding sealing surface of the coupling. second coupling part. By continuously feeding the space between the coupling parts with filtered sea water in the manner mentioned above while moving the coupling parts towards each other, it is prevented that the surrounding unfiltered sea water penetrates the area between the sealing surfaces of the coupling parts and no additional cleaning of the sealing surfaces is necessary before the sealing surfaces are brought into contact with each other. Therefore, the coupling parts can be connected to each other quickly and reliably even in an environment where particles and dirt, such as sand and silt, are mixed with the surrounding seawater.
    [006] Additional advantages, as well as advantageous functions, of the method according to the present invention will appear from the dependent claims and the following descriptions. BRIEF DESCRIPTION OF THE DRAWINGS
    [007] With reference to the accompanying drawings, a specific description of preferred embodiments of the invention cited as examples follows below.
    [008] In the drawings: - Figures 1 and 2 are schematic illustrations of a coupling arrangement, as seen in a longitudinal section during the displacement stage of the coupling parts of the coupling arrangement for interlocking with each other; Figure 3 is a partial schematic view illustrating the coupling arrangement of Figures 1 and 2, with the two coupling parts attached to each other; and - Figure 4 is a partial schematic view illustrating the coupling arrangement of Figures 1 to 3 after the establishment of an electrical connection between the contact members of the two coupling parts. DESCRIPTION OF ACCOMPLISHMENTS OF THE INVENTION
    [009] In the following, the method according to the present invention will be described as used with a subsea coupling arrangement in the form of an electrical connector of the type shown in U.S. 7,080,996 B2. However, the method can, of course, also be used with other types of subsea coupling arrangements, such as, for example, with a subsea coupling arrangement in the form of a hydraulic connector or a stabilizer-type electrical connector (stab).
    [010] Figures 1 to 4 illustrate a coupling arrangement 1 designed for use in an underwater electrical power distribution. The coupling arrangement 1 comprises a first coupling part 1a and a second coupling part 1b, which are safely removable from each other. A first power conduit 7a is connectable to the first coupling part 1a via an attachment 4a provided by the first coupling part and a second power conduit 7b is connectable to the second coupling part 1b via an attachment 4b provided by the second coupling part coupling. The two power ducts 7a and 7b are electrically connectable to each other via coupling arrangement 1. The respective power ducts 7a and 7b constitute a power cable.
    [011] Each coupling part 1a, 1b is provided with a contact housing 2a, 2b that accommodates a respective contact member 3a and 3b. Coupling parts 1a, 1b are designed so that a gap 20 (see Figure 3) is provided between contact member 3a of the first coupling part 1a and contact member 3b of the second coupling part 1b when the parts coupling brackets 1a, 1b have been attached to each other. A contact element 10 is displacably disposed in the contact housing 2b of the second coupling part 1b. When the coupling parts 1a, 1b have been attached to each other, the contact element 10 is displaceable towards the contact member 3a of the first coupling part 1a from a first position, in which no electrical connection between the member contact 3a of the first coupling part 1a and the contact member 3b of the second coupling part 1b is established by the contact element 10, and in a second position, in which the contact element 10 is establishing electrical connection between said members contact points 3a and 3b. The displacement of the contact element 10 is preferably hydraulically actuated.
    [012] The contact members 3a and 3b are arranged in the respective contact housing 2a, 2b partially surrounded by chamber 5a, 5b filled with dielectric fluids. Compensators (not shown) are suitably arranged in said chambers 5a and 5b to counterbalance the hydrostatic pressure and to take care of the volumetric compensation in connection with the expansion / contraction of the dielectric fluid. The compensators preferably comprise metal bellows, but they can also be made of elastomeric materials.
    [013] Next, the contact housing 2a of the first coupling part 1a will be called the first contact housing and the contact housing 2b of the second coupling part 1b will be referred to as the second contact housing. Likewise, the contact member 3a of the first coupling part 1a will be called the first contact member and the contact member 3b of the second coupling part 1b will be called the second contact member.
    [014] In the illustrated example, the respective contact members3a and 3b comprise three pins 13a, 13b. The contact element 10 comprises in this three contact gloves 11, each of which is positioned around and in electrical contact with two opposite contact pins 13a and 13b of the two contact members 3a and 3b. The contact sleeves 11 are preferably integrated into a single unit, as illustrated in Figures 1 to 4. The contact element 10 is supported by a piston 24 mounted in a displaceable manner in a chamber 22 disposed in the second contact housing 2b. Said chamber 22 is preferably filled with dielectric fluid. The piston 24 is adapted to be hydraulically actuated in order to achieve the displacement of the contact element 10 between the aforementioned first and second positions. Figure 3 shows the contact element 10 when positioned in the aforementioned first position, that is, when no electrical connection is established between the first contact member 3a and the second contact member 3b. Figure 4 shows the contact element 10 when positioned in the aforementioned second position, that is, when an electrical connection is established between the first contact member 3a and the second contact member 3b.
    [015] The first contact housing 2a is preferably positioned with its central axis vertically arranged, as shown in Figure 1. The first coupling part 1a, which in this constitutes a lower coupling part, is, for example, attached to a foundation structure, not shown, which is attached to a structure located on the sea floor. The second coupling part 1b, which in this constitutes an upper coupling part, is typically part of an electrical steering module. The second coupling part 1b is, in this case, adapted to be mounted to the first coupling part 1a by being vertically lowered for an engagement with the first coupling part 1a and disassembled from the first coupling part 1a by being vertically suspended and thus causing the trip. The lowering and suspension operations, for example, are conducted by means of a winch device arranged on a ship or on a platform and connected to an electrical steering module, which includes the second coupling part 1b, using a rope or cable.
    [016] In the embodiment shown in Figures 1 to 4, the first contact housing 2a has a cavity 6 for receiving an end piece 8 of a second contact housing 2b. Consequently, the first contact housing 2a is designed as a female member and the second contact housing 2b as a male member. It is also possible, of course, to design the first contact housing 2a as a male member and the second contact housing 2b as a female member, if desired.
    [017] In the illustrated example, the coupling arrangement 1 comprises a device 40 which is adapted to fix the contact housings 2a, 2b to each other when the coupling parts 1a, 1b have been properly connected to each other. The locking device is preferably hydraulically actuated. In the illustrated example, the locking device 40 comprises several pivoting locking members 41 arranged around the second contact housing 2b. These locking members 41 are adapted to cooperate with the corresponding locking surfaces 43 arranged in a groove 42 in the cavity 6 of the first coupling part 1a. A fixing member 44 is adapted to fix the locking members 41 in the position indicated in Figures 3 and 4. The fixing member 44 is displaceable in the second coupling part 1b and its displacement is hydraulically actuated. The locking members 41 are pivotally mounted to the second coupling part 1b. When the fixing member 44 is moved downwardly along the second coupling part 1b and in the opposite direction to the locking member 41, the locking members 41 are free to pivot to allow the second coupling part 1b and thus the second contact housing 2b to move down towards cavity 6 of the first coupling part 1a.
    [018] The first coupling part 1a is provided with at least one sealing surface 12a which is adapted to limit with a corresponding sealing surface 12b of the second coupling part 1b to form a waterproof seal between the coupling parts 1a, 1b when the coupling parts have been connected to each other. Said sealing surface 12a of the first coupling part 1a and the corresponding sealing surface 12b of the second coupling part 1b are brought into contact with each other by displacing the coupling parts 1a, 1b towards each other. The sealing surfaces 12a, 12b are preferably made of metallic material. One or more of the sealing surfaces of the coupling parts 1a, 1b may alternatively form part of an elastomeric sealing member. In the illustrated example, the sealing surface 12b of the second coupling part 1b is provided in an annular projection 16 arranged at the lower end of the second contact housing 2b and the sealing surface 12a of the first coupling part 1a is provided in a corresponding recess 15 arranged in the first contact housing 2a. The seal 12 formed by the sealing surfaces 12a, 12b seals the space 14 between the coupling parts 1a, 1b of the surrounding seawater when the coupling parts 1a, 1b have been attached to each other.
    [019] Figures 1 and 2 show a coupling arrangement 1 in one stage during the process of connecting the second coupling part 1b to the first coupling part 1a. The second coupling part 1b is connected to the first coupling part 1a by being moved towards the first coupling part 1a. During this displacement of the second coupling part 1b towards the first coupling part 1a, filtered seawater is continuously fed through a channel 25 in the second coupling part 1b and in the space 14 between the coupling parts 1a, 1b, being that said filtered sea water is discharged from said space 14 in the vicinity while flowing over the sealing surfaces 12a, 12b to thereby prevent particles and dirt from being trapped between those sealing surfaces. The flow of filtered seawater is illustrated by the arrows in Figure 2. Therefore, filtered seawater is introduced into the space 14 between the coupling parts 1a, 1b through the feed channel 25 and flushed out at high speed over the surfaces seals 12a, 12b at the same time as the two coupling parts 1a, 1b are slowly joined and until the sealing surfaces 12a, 12b are engaged with each other and the waterproof seal 12 is established.
    [020] In the illustrated example, said channel 25 is fed with filtered sea water by means of a pump 61 arranged in an ROV 60 (ROV = Remote Operated Vehicle). ROV 60 is very schematically illustrated with dashed lines in Figures 1 and 2. Pump 61 is connectable to channel 25 through a hydraulic connection 26 provided in the second coupling part 1b. Said sea water is filtered through a filter 62 disposed in ROV 60. When the sealing surfaces 12a, 12b have been brought into contact with each other (as shown in Figure 3), the fluid is allowed to leave the space 14 between the coupling parts 1a, 1b through a return channel 27 provided in the second coupling part 1b. In the example illustrated in Figures 1 and 2, return channel 27 is connected to the surroundings via a channel 65 disposed in ROV 60. A valve 63 is disposed in said channel 65 in ROV 60. The pressure in return channel 27, which corresponds to the pressure in the space 14 between the coupling parts 1a, 1b can be measured by means of a pressure gauge 64 arranged in the ROV 60. When the sealing surfaces 12a, 12b have been engaged with each other to form a waterproof seal water 12 between the coupling parts 1a, 1b, the valve 63 is closed and the space 14 between the coupling parts 1a, 1b is pressurized to a given pressure. The sealing efficiency of the seal 12 is checked by monitoring the pressure established in the space 14 by means of a pressure gauge 64. The sealing efficiency of the seal 12 is verified, for example, by keeping the space 14 closed after the establishment of the given pressure and by monitoring that pressure for a given period of time. If the pressure deviation does not exceed a given value during that time, seal 12 is considered acceptable.
    [021] Figure 3 shows the coupling arrangement 1 when the coupling parts 1a, 1b have been attached to each other in a fluid-proof manner. In the position shown in Figure 3, the contact element 10 is in the aforementioned first position, in which no electrical connection between the contact member 3a of the first coupling part 1a and the contact member 3b of the second coupling part 1b is established by the contact element. Figure 4 shows the contact element 10 positioned in the aforementioned second position, in which the contact element is establishing an electrical connection between said contact members 3a and 3b.
    [022] As is apparent in Figure 3, there is an interval 20 between the first contact member 3a and the second contact member 3b when the coupling parts 1a, 1b have been attached to each other. This gap 20 and the other space 14 between the coupling parts 1a, 1b are initially filled with filtered sea water. When the coupling parts 1a, 1b have been fixed to each other in a flow-proof manner, the filtered seawater is removed from the space 14 between the coupling parts 1a, 1b, when then the space 14 is filled with dielectric fluid .
    [023] The process of connecting the coupling parts 1a, 1b of the coupling arrangement 1 to each other illustrated is described in more detail in U.S. 7 080 996 B2, the content of which is incorporated by reference in this document.
    [024] The illustrated coupling arrangement 1 could be used to couple two power ducts in the form of power cables. However, this coupling arrangement could also be used to couple a first power conduit in the form of a power cable and a second power conduit which constitutes a type of power conduit other than a power cable or the coupling of two conduits that constitute other types of electricity than power cables. One of said power ducts could, for example, be an input terminal or an electrical device output terminal.
    [025] The invention is, of course, in no way restricted to the achievements described above. On the contrary, many possibilities for modifying it will be apparent to a person of ordinary skill in the art without departing from the basic idea of the invention as defined in the appended claims.
    权利要求:
    Claims (4)
    [0001]
    1. METHOD FOR CONNECTING A FIRST COUPLING PIECE (1A) AND A SECOND COUPLING PIECE (1B) FROM A SUBMARINE COUPLING ARRAY (1), with each other, the first coupling piece (1a) being provided with a housing contact (2a) accommodating a first contact member (3a) and a second coupling part (1b) being provided with a second contact member (3b), in which the first coupling part (1a) is provided with a sealing surface (12a) which is provided in the first contact housing (2a) and which is adapted to limit with a corresponding sealing surface (12b) of the second coupling part (1b) provided in the second contact housing (2b) to form a seal waterproof and pressure (12) between the coupling parts (1a, 1b) when the coupling parts have been connected together, where the sealing surface (12a) of the first coupling part (1a) and the sealing surface corresponding (12b) of the second coupling part (1b) are placed in contact with each other by displacing the coupling parts (1a, 1b) towards each other, characterized by: filtered sea water being fed through a channel (25) in one of the coupling parts (1a, 1b) and in a space (14) between the coupling parts (1a, 1b) during the displacement of the coupling parts towards each other; filtered seawater is fed through the channel (25) by means of a pump (61) disposed in a Remote Operating Submarine Vehicle (60); and the filtered sea water is discharged from the space (14) and to the surroundings through a space between the first contact housing (2a) and the second contact housing (2b) while flowing over the sealing surfaces (12a, 12b) to thereby prevent particles and dirt from being trapped between the sealing surfaces (12a, 12b).
    [0002]
    2. METHOD, according to claim 1, characterized by the sea water being filtered by means of a filter (62) disposed in the Remote Operating Submarine Vehicle (60).
    [0003]
    METHOD, according to any one of claims 1 to 2, characterized in that the space (14) between the first coupling part (1a) and the second coupling part (1b) is connected to the surroundings through a return channel ( 27) supplied in one of the coupling parts (1a, 1b) and a valve (63), and the pressure in said space (14) is monitored after the connection of the coupling parts (1a, 1b) to each other while maintaining the valve (63) closed to thereby check the sealing efficiency of the waterproof and pressure seal (12) formed by the sealing surfaces (12a, 12b).
    [0004]
    METHOD, according to any one of claims 1 to 3, characterized in that the space (14) between the first coupling part (1a) and the second coupling part (1b) is free of seawater by washing and filled with dielectric fluid after connecting the coupling parts together.
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    NO20110660A1|2012-11-05|
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    EP2520757B1|2016-01-06|
    US9010434B2|2015-04-21|
    NO333239B1|2013-04-15|
    BR102012010478A8|2015-09-08|
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    法律状态:
    2015-08-11| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|
    2015-09-08| B03H| Publication of an application: rectification|Free format text: REFERENTE A RPI 2327 DE 11/08/2015, QUANTO AOS ITENS (30 E 71). |
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2020-05-12| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-11-24| B09A| Decision: intention to grant|
    2021-02-09| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 03/05/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    2021-03-02| B16C| Correction of notification of the grant|Free format text: REF. RPI 2614 DE 09/02/2021 QUANTO AO ENDERECO. |
    优先权:
    申请号 | 申请日 | 专利标题
    NO20110660A|NO333239B1|2011-05-03|2011-05-03|Method for connecting two coupling parts of a submarine coupling device.|
    NO20110660|2011-05-03|
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