A modular offshore platform storage deck structure and method of assembly thereof

Abstract

This invention belongs to the field of offshore platforms and provides a modular offshore platform storage deck structure and its assembly method. It solves the problem of storage tanks occupying deck space. The cubic space bodies are mechanically connected, making construction simple and eliminating the need for welding, thus reducing the construction cycle and simplifying the process. The technical solution includes a deck body containing multiple cubic space bodies and connecting bodies. Each cubic space body has a splicing interface on its side. The connecting body is equipped with wing plates. The cavity formed by splicing the splicing interfaces and the splicing interfaces and wing plates serves as the storage structure, and the storage space inside the storage structure is located below the deck.

Description

Technical Field

[0001] This invention belongs to the field of offshore platforms, and particularly relates to a modular offshore platform storage deck structure and its assembly method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Currently, offshore platforms tend to have more compact and symmetrical structures. The space on the platform is being continuously compressed while meeting relevant regulatory requirements. Using the deck as a storage structure can save deck space. At present, traditional offshore platforms do not have storage deck structures, only similar structures such as the emergency oil pool under the transformer of an offshore substation.

[0004] Traditional storage methods currently have the following drawbacks:

[0005] 1. Tank type, prefabricated silo type: Located on the deck, occupying deck space.

[0006] 2. Accident oil tank: The traditional accident oil tank structure is a purlin steel plate type, which requires a huge amount of welding, has a long construction period, and wastes space.

[0007] 3. Currently, the deck of an offshore booster station does not have a reliable function for adjusting the center of gravity of the upper module. Summary of the Invention

[0008] To address at least one of the technical problems existing in the background art, the first aspect of the present invention provides a modular offshore platform storage deck structure, which introduces cubic space bodies and assembles them into a storage structure through mechanical splicing, with the storage space located below the deck. The cubic space bodies are mechanically connected, making construction simple and eliminating the need for welding, thus reducing the construction cycle and simplifying the process.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A modular offshore platform storage deck structure includes: a deck body containing multiple cubic spaces and connecting bodies. Each cubic space has a splicing interface on its side. The connecting bodies are provided with wing plates. The cavity formed by splicing the splicing interfaces and the splicing interfaces and wing plates serves as a storage structure, and the storage space inside the storage structure is located below the deck.

[0011] In one embodiment, the cubic space volume includes a first cubic space volume, a second cubic space volume, and a third cubic space volume.

[0012] The first cubic space is provided with a first cap groove and a first wing protrusion, the second cubic space is provided with a second cap groove and a second wing protrusion, and the third cubic space is provided with a third cap groove;

[0013] The first or second cap groove is spliced ​​with the wing plate;

[0014] The first cap groove and the first wing protrusion or the second wing protrusion are spliced ​​together;

[0015] The second cap groove is spliced ​​with the first wing protrusion or the second wing protrusion;

[0016] The third cap groove is spliced ​​with the first wing protrusion or the second wing protrusion.

[0017] In one embodiment, the first cubic space body is provided with a first cap groove on three sides and a first wing protrusion on the other side;

[0018] The second cubic space body has a second cap groove on two sides and a second wing protrusion on two sides. The two sides where the second cap groove is located are adjacent to each other, and the two sides where the second wing protrusion is located are adjacent to each other.

[0019] The third cubic space is provided with a third cap groove on each of its four sides.

[0020] In one implementation, the top surfaces of the first, second, and third cubic spaces are open, and movable steel plates or gratings can be installed as needed.

[0021] In one embodiment, the structure further includes a cubic connector, which includes a connecting pipe and a sealing ring. The sealing ring is fixed to the connecting pipe, and an opening is provided at the bottom of each splicing interface. The connecting pipe is inserted between two adjacent openings and sealed by the sealing ring.

[0022] In one embodiment, the structure further includes a through support tube and a through support tube fixing component. The through support tube passes through the opening of the cube in one direction. The through support tube is provided with two through stiffening ribs and has an opening on its outer surface. The two ends of the through support tube are respectively fixed by the through support tube fixing component.

[0023] In one embodiment, the deck body includes two pairs of parallel beams with grooves inside. The two pairs of beams are fixed vertically, and a connector is fixed in the groove of each beam. The connector is fixed to the groove through bolt holes.

[0024] As one implementation, the structure also includes a cross-beam connector. If there are cubic spaces on both sides of the beam and column and the two cubic spaces need to be connected, the cross-beam connector is inserted into the reserved opening and passes through the side wall of the cubic space, the web of the beam and column, and the side wall of the other cubic space in sequence, and is fixed by friction.

[0025] In one embodiment, the structure also includes counterweights, which are placed in a cubic space, and the center of gravity of the offshore platform is adjusted by adjusting the position and number of counterweights.

[0026] To address the aforementioned problems, a second aspect of the present invention provides a method for assembling a modular offshore platform storage deck structure. This method introduces cubic spaces, which are mechanically spliced ​​together to form a storage structure. The storage space is located below the deck. The cubic spaces are mechanically connected, making construction simple and eliminating the need for welding, thus reducing the construction cycle and simplifying the process.

[0027] To achieve the above objectives, the present invention adopts the following technical solution:

[0028] A method for assembling a modular offshore platform storage deck structure includes the following steps:

[0029] The dimensions and quantity of each cubic space element to be used are determined according to the layout plan;

[0030] Determine the number of connectors;

[0031] Secure the connector to the main deck body;

[0032] The cubic space body is secured to the wing plate of the connecting body from top to bottom through the corresponding cap groove;

[0033] According to the layout plan, the remaining cubic spaces are interlocked with each other using the corresponding cap grooves and wing protrusions;

[0034] Based on the assembled structure, the storage structure is arranged below the deck.

[0035] The beneficial effects of this invention are:

[0036] 1. In terms of structure:

[0037] (1) The cubic space body of the present invention forms a stable inverted "T" shaped grid structure through the close combination of the cap groove and the wing protrusion. Through the synergistic effect between the cubic space bodies, it can bear the storage load and increase the floor slab stiffness.

[0038] (2) The two side plates of the steel beam connector not only meet the needs of fixing and installing the cubic space, but also serve as stiffening plates to increase the load-bearing capacity of the steel beam.

[0039] (3) The present invention is equipped with a multi-functional through support pipe, which can not only increase the load-bearing capacity of the structure, but also connect the cubic spaces.

[0040] 2. In terms of functionality:

[0041] (1) The space cube introduced in this invention can realize the deck storage function, and by changing the internal components of the cube, it can also be used as a cable channel, pipe support, and equipment foundation.

[0042] (2) The center of gravity of the upper module of the offshore platform can be adjusted by adding counterweights.

[0043] (3) The cubic space body of the present invention can not only store solids and place equipment, but also store liquids after the splicing joints are sealed. It can store fresh water and can also be used as an emergency oil pool for transformers in offshore substations.

[0044] 3. In terms of manufacturing and processing, each module of the present invention can be designed and manufactured in a standardized manner, and the component size can be selected according to different usage conditions.

[0045] 4. From the perspective of on-site implementation:

[0046] (1) All modules of the present invention are mechanically connected, which greatly reduces the amount of welding work;

[0047] (2) The present invention is easy to install and does not require complicated procedures.

[0048] 5. In terms of economic efficiency:

[0049] (1) The process is simple and easy to implement, which greatly reduces the construction time;

[0050] (2) It can be easily disassembled and reused.

[0051] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0052] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0053] Figure 1 This is a schematic diagram of the first cubic space structure provided in an embodiment of the present invention;

[0054] Figure 2 This is a schematic diagram of the second cubic space structure provided in an embodiment of the present invention;

[0055] Figure 3 This is a schematic diagram of the third cubic space structure provided in an embodiment of the present invention;

[0056] Figure 4 This is a schematic diagram of the connector structure provided in an embodiment of the present invention;

[0057] Figure 5 This is a schematic diagram of the cubic connector structure provided in an embodiment of the present invention;

[0058] Figure 6 This is a schematic diagram of the cross-steel beam communicating vessel structure provided in an embodiment of the present invention;

[0059] Figure 7 This is a schematic diagram of the through-support pipe structure provided in an embodiment of the present invention;

[0060] Figure 8 This is a schematic diagram of the counterweight structure provided in an embodiment of the present invention;

[0061] Figure 9 This is a schematic diagram of the through-support pipe fixing structure provided in an embodiment of the present invention;

[0062] Figure 10 This is a schematic diagram of the first assembly method provided in the embodiment of the present invention;

[0063] Figure 11 This is a schematic diagram of the second assembly method provided in the embodiment of the present invention;

[0064] Figure 12 These are other perspective views of the second assembly method structure provided in the embodiments of the present invention;

[0065] Among them, 1. First cubic space body, 101. First cap groove, 102. First wing protrusion, 2. Second cubic space body, 201. Second cap groove, 202. Second wing protrusion, 3. Third cubic space body, 301. Third cap groove, 4. Connector, 401. First side, 402. Double-sided stiffening plate, 403. Wing plate, 404. Bolt hole, 5. Cube connector, 501. Connecting pipe, 502. Sealing ring, 6. Cross-steel beam connector, 7. Through support pipe, 8. Counterweight block, 9. Floor drain, 10. Through support pipe fixing piece, 11. Edge plug. Detailed Implementation

[0066] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0067] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0068] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0069] In this invention, terms such as "upper," "lower," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely relational terms determined for the convenience of describing the structural relationship of the various components or elements of this invention, and do not specifically refer to any component or element in this invention, and should not be construed as limiting this invention.

[0070] In this invention, terms such as "fixed connection" and "connection" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of these terms in this invention based on the specific circumstances, and they should not be construed as limitations on the invention.

[0071] To solve the aforementioned technical problems mentioned in the background section, the present invention is implemented through the following technical solution.

[0072] 1. To solve the problem of storage tanks occupying deck space, this invention introduces cubic space bodies. Through the mechanical splicing of cubic space bodies, a storage structure is formed, and the storage space is set below the deck.

[0073] 2. To address the issues of large welding volume, long construction period, and complex procedures associated with purlin steel plates, mechanical connections are used between cubic space units. This simplifies construction, eliminates the need for welding, reduces the construction period, and simplifies procedures.

[0074] 3. To address the problem that traditional decks do not have a reliable function for adjusting the center of gravity of the upper module, this invention introduces a counterweight block that is matched with the storage space. Together with the cubic space, it works to adjust the center of gravity of the upper module.

[0075] Example 1

[0076] This embodiment provides a modular offshore platform storage deck structure, including: a deck body, the deck body containing multiple cubic spaces and connecting bodies, each cubic space having a splicing interface on its side, the connecting bodies having wing plates, and the cavity formed by splicing the splicing interfaces and the splicing interfaces and wing plates serving as a storage structure, with the storage space inside the storage structure located below the deck.

[0077] The specific solutions of the present invention are described below by way of examples.

[0078] like Figures 1-3 As shown, the cubic space body includes a first cubic space body 1, a second cubic space body 2 and a third cubic space body 3. The first cubic space body 1 is provided with a first cap groove 101 and a first wing protrusion 102. The second cubic space body 2 is provided with a second cap groove 201 and a second wing protrusion 202. The third cubic space body 3 is provided with a third cap groove 301.

[0079] like Figure 4 As shown, the connecting body 4 includes a first side surface 401, double-sided stiffening plates 402, wing plates 403, and bolt holes 404;

[0080] The top, bottom and first side 401 of the connecting body 4 are engaged with the deck body, and the wing plate is locked with the first cap groove 101 or the second cap groove 201.

[0081] The first cap groove 101 is spliced ​​with the first wing protrusion 102 or the second wing protrusion 202;

[0082] The second cap groove 201 is spliced ​​with the first wing protrusion 102 or the second wing protrusion 202;

[0083] The third cap groove 301 is spliced ​​with the first wing protrusion 102 or the second wing protrusion 202.

[0084] Specifically, the first cubic space body 1 has a first cap groove 101 on three sides and a first wing protrusion 102 on the other side;

[0085] The second cubic space body 2 has a second cap groove 201 on two sides and a second wing protrusion 202 on two sides. The two sides where the second cap groove 201 is located are adjacent, and the two sides where the second wing protrusion 202 is located are adjacent.

[0086] The third cubic space 3 is provided with a third cap groove 301 on each of its four sides.

[0087] like Figure 5 As shown, the structure also includes a cubic connector 5, which includes a connecting pipe 501 and a sealing ring 502. The sealing ring 502 is fixed to the connecting pipe 501. Each splicing interface has an opening 6 at the bottom. The connecting pipe 501 is inserted between two adjacent openings and sealed by the sealing ring 502.

[0088] The top surfaces of the first cubic space 1, the second cubic space 2, and the third cubic space 3 are open, and movable steel plates or gratings can be installed as needed.

[0089] The above solution uses mechanical connections between cubic spaces, which is simple to construct and does not require welding. This reduces the construction period, simplifies the process, and solves the problems of large welding volume, long construction period, and complex process of purlin steel plate type.

[0090] The number of cubic space elements and the specific assembly method need to be determined based on the specific requirements and layout diagram.

[0091] The deck body includes two pairs of parallel beams, each beam having a groove, and the two pairs of beams are vertically fixed; if it is Figure 10 The assembly structure shown has three connectors 4 fixed in the groove of each beam and column, and the connectors 4 are fixed to the groove through bolt holes 404.

[0092] The wing plate of the middle connecting body of each beam and column is locked with one of the first cap grooves 101, and the wing plates of the connecting bodies on both sides are locked with one of the second cap grooves 201; at the same time, the adjacent first cap grooves 101 and second wing protrusions 202 are locked; the third cap groove 301 and the four first wing protrusions 102 are locked.

[0093] If Figure 11 The assembly structure shown has four connectors 4 fixed in the groove of each beam and column, and the connectors 4 are fixed to the groove through bolt holes 404;

[0094] One of the connecting plates of each beam and column is locked to one of the first cap grooves 101, and the flanges of the other three connecting plates are locked to one of the second cap grooves 201; then the adjacent second cap groove 201 is locked to the first wing protrusion 102 or the second wing protrusion 202; the adjacent first cap groove 101 is locked to the first wing protrusion 102 or the second wing protrusion 202; the third cap groove 301 is locked to the four first wing protrusions 102; the third cap groove 301 is locked to the four first wing protrusions.

[0095] It should be noted that the above-described embodiments are only some examples of the present invention. It is understood that in other embodiments, those skilled in the art can make their own settings according to different design requirements and design schemes, based on specific working conditions. These will not be elaborated here.

[0096] The advantage of the above scheme is that the cubic space forms a stable inverted "T"-shaped grid structure through the close combination of the cap groove and the wing protrusion. Through the synergistic effect between the cubic space, it can bear the storage load and increase the floor slab stiffness.

[0097] The structure also includes a cubic connector 5, which includes a connecting pipe 501 and a sealing ring 502. The sealing ring 502 is fixed to the connecting pipe 501. Each splicing interface has an opening at the bottom. The connecting pipe 501 is inserted between two adjacent openings and sealed by the sealing ring 502.

[0098] like Figure 6 and Figure 12 As shown, the structure also includes a cross-steel beam connector 6. If there are cubic spaces on both sides of the beam and column and the two cubic spaces need to be connected, the cross-steel beam connector is inserted into the reserved opening and passes through the side wall of the cubic space, the web of the steel beam, and the side wall of the other cubic space in sequence, and is fixed by friction. The two sides of the connector 6 are made of rubber to prevent water leakage.

[0099] like Figure 7 As shown, the structure also includes a through support pipe 7, which passes through the opening of the cube in one direction. The through support pipe 7 has two through stiffening ribs inside and an opening on its outer surface, which can be used as a liquid retention channel or for passing through cables.

[0100] In this embodiment, the through support pipe 7 is a semi-circular pipe or other tubular structure.

[0101] like Figure 9 and Figure 12 As shown, the structure also includes a through support pipe fastener 10; the fastener 10 is connected to the steel beam by bolts, and the through support pipe 7 is inserted from one side of the entire storage deck structure through a hole until it reaches the fastener 10. After insertion, the fastener 10 at the other end of the storage deck structure is installed to achieve the purpose of fixing.

[0102] like Figure 8 As shown, the structure also includes counterweights 8. If it is necessary to adjust the center of gravity of the upper block of the offshore platform using the storage deck structure of the present invention, the counterweights 8 can be placed in the cubic space. The center of gravity of the offshore platform can be adjusted by adjusting the position and number of the counterweights. After hoisting is completed, the counterweights 8 can be taken out one by one to make room for storage. The counterweights can also be reused.

[0103] The structure also includes a floor drain 9. If liquid is stored, rubber or other sealing materials are used at the joints to prevent liquid leakage. The sealing material can be selected according to the actual working conditions, and this embodiment does not impose a specific limitation. When the present invention is used as an emergency oil pool for an offshore booster station, the top plate of the cubic space is replaced with a steel grating, and a floor drain 9 is added, with an oil drain pipe connected to the floor drain 9.

[0104] It should be noted that the floor drain 9 can be installed by simply drilling holes and welding it onto the base plate.

[0105] The structure also includes an edge plug 11, which is used on the edge of the storage deck structure to seal unused side wall openings of the cubic space. It is also fixed by friction and the rubber ring prevents leakage.

[0106] If this structure is used as a cable channel, pipe support, or equipment foundation, cable fittings, pipe support fittings, etc., can be added and connected to the cubic space as needed. It is understood that those skilled in the art can make their own settings according to the specific working conditions. This embodiment will not describe these fittings in detail.

[0107] Example 2

[0108] This embodiment provides a method for assembling a modular offshore platform storage deck structure, including the following steps:

[0109] The dimensions and quantity of each cubic space element to be used are determined according to the layout plan;

[0110] Determine the number of connectors;

[0111] Secure the connector to the main deck body;

[0112] The cubic space body is secured to the wing plate of the connecting body from top to bottom through the corresponding cap groove;

[0113] According to the layout plan, the remaining cubic spaces are interlocked with each other using the corresponding cap grooves and wing protrusions;

[0114] Based on the assembled structure, the storage structure is arranged below the deck.

[0115] Specifically:

[0116] First, determine the number and size of the first cubic space 1, the second cubic space 2, and the third cubic space 3 according to the spacing of the deck steel beams. The cubic space can be made into a cube or a cuboid as needed. Connect the steel beam connector 4 to the deck steel beams with bolts according to the layout diagram.

[0117] The second cubic space body 2 and the third cubic space body 3 are sequentially clamped together from top to bottom by the cap groove and the wing protrusion. Different arrangements require different choices of the type and number of cubic space bodies.

[0118] Insert the cube connector 5 between the two cubic spaces.

[0119] To connect the cubic spaces on both sides of the steel beam, insert the steel beam connector 4 into the cubic space and the middle of the beam. When the load to be borne is large, the through support pipe 7 can be inserted into the opening of the cubic space in one direction to increase the load-bearing capacity and the ability of the structural system to share the load. It also has the function of connecting the cubic spaces.

[0120] If it is necessary to adjust the center of gravity of the upper block of the offshore platform using the storage deck structure of the present invention, the counterweight 8 can be placed in the cubic space. The center of gravity of the offshore platform can be adjusted by adjusting the position and number of the counterweights. After hoisting is completed, the counterweights 8 can be taken out one by one to make room for storage. At the same time, the counterweights can also be reused.

[0121] If storing liquids, rubber or other sealing materials should be used at the joints to prevent leakage. This invention will not elaborate on the sealing materials. When this invention is used as an emergency oil sump at an offshore substation, the top plate of the cubic space is replaced with a steel grating, and a floor drain is added to connect to the oil drain pipe.

[0122] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A modular offshore platform storage deck structure, characterized in that, include: The deck body comprises multiple cubic spaces and connecting bodies. Each cubic space has a splicing interface on its side. The connecting body is provided with a wing plate. The cavity formed by splicing the splicing interfaces and the splicing interfaces and the wing plates serves as a storage structure. The storage space inside the storage structure is located below the deck. The cubic space volume includes a first cubic space volume, a second cubic space volume, and a third cubic space volume; The first cubic space is provided with a first cap groove and a first wing protrusion, the second cubic space is provided with a second cap groove and a second wing protrusion, and the third cubic space is provided with a third cap groove; The first or second cap groove is spliced ​​with the wing plate; The first cap groove and the first wing protrusion or the second wing protrusion are spliced ​​together; The second cap groove is spliced ​​with the first wing protrusion or the second wing protrusion; The third cap groove is spliced ​​with the first wing protrusion or the second wing protrusion; The first cubic space body has a first cap groove on three sides and a first wing protrusion on the other side; The second cubic space body has a second cap groove on two sides and a second wing protrusion on two sides. The two sides where the second cap groove is located are adjacent to each other, and the two sides where the second wing protrusion is located are adjacent to each other. The third cubic space is provided with a third cap groove on each of its four sides.

2. The modular offshore platform storage deck structure as described in claim 1, characterized in that, The top surfaces of the first, second, and third cubic spaces are open, and movable steel plates or gratings can be installed as needed.

3. The modular offshore platform storage deck structure as described in claim 1, characterized in that, The structure also includes a cubic connector, which includes a connecting pipe and a sealing ring. The sealing ring is fixed to the connecting pipe. Each splicing interface has an opening at the bottom. The connecting pipe is inserted between two adjacent openings and sealed by the sealing ring.

4. The modular offshore platform storage deck structure as described in claim 1, characterized in that, The structure also includes a through support tube and a through support tube fixing component. The through support tube passes through the opening of the cube in one direction. The through support tube is provided with two through stiffening ribs and has an opening on its outer surface. Both ends of the through support pipe are fixed by through support pipe fasteners.

5. The modular offshore platform storage deck structure as described in claim 1, characterized in that, The deck body includes two pairs of parallel beams with grooves inside. The two pairs of beams are fixed vertically, and a connector is fixed in the groove of each beam. The connector is fixed to the groove through bolt holes.

6. The modular offshore platform storage deck structure as described in claim 4, characterized in that, The structure also includes a cross-steel beam connector. If there are cubic spaces on both sides of the beam and column and the two cubic spaces need to be connected, the cross-steel beam connector is inserted into the reserved opening and passes through the side wall of the cubic space, the web of the beam and column, and the side wall of the other cubic space in sequence, and is fixed by friction.

7. The modular offshore platform storage deck structure as described in claim 1, characterized in that, The structure also includes counterweights, which are placed in a cubic space. The position and number of counterweights are adjusted to change the center of gravity of the offshore platform.

8. An assembly method for a modular offshore platform storage deck structure based on any one of claims 1-7, characterized in that, Includes the following steps: The dimensions and quantity of each cubic space element to be used are determined according to the layout plan; Determine the number of connectors; Secure the connector to the main deck body; The cubic space body is secured to the wing plate of the connecting body from top to bottom through the corresponding cap groove; According to the layout plan, the remaining cubic spaces are interlocked with each other using the corresponding cap grooves and wing protrusions; Based on the assembled structure, the storage structure is arranged below the deck.

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