Maintenance structure below maritime work platform

Abstract

The utility model discloses a maintenance structure below a maritime work platform, which relates to the technical field of ocean engineering construction and comprises a plurality of deck modules, a platform deck is formed by welding and coating, and a module folding seam is arranged between every two adjacent deck modules; the plurality of scaffolds are detachably arranged on the upward side wall of the west of the platform deck, and the scaffolds correspond to the module folding seams in position; wherein a plurality of connecting plates are arranged on the periphery of the platform deck, and the scaffold is detachably connected with the connecting plates through connecting bolts. According to the maintenance structure below the maritime work platform, the connecting plates are arranged below the platform deck in advance to be connected with the scaffolds, and workers can carry out maritime maintenance operation below the platform deck through the channel built by the scaffolds without homeward voyage construction. And the scaffold adopts a detachable structural form, so that the construction is convenient, the structural stability is good, the strength is high, and the load of offshore construction operation is met. Workers do not need to work upwards through the scaffold, efficiency is higher, and fatigue is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering construction, in particular to a maintenance structure below a marine engineering platform. Background Art

[0002] Marine engineering structures need to withstand special offshore environments, so they have special structural forms and complex and varied design forms. The main structural deck package of offshore platforms and floating platforms is exposed above the sea surface. The platform deck surface provides operating space for offshore operations. During the construction, repair and maintenance of offshore platforms, structural inspection, repair, rust removal and painting operations are required. High-altitude operations and back-up construction operations are required under the deck package. The construction work is unsafe and difficult, and it needs to be towed back to the dock for construction, which is extremely inconvenient.

[0003] The existing platform deck needs to be docked at the wharf for maintenance, and a high-altitude vehicle is used for assistance. Scaffolding needs to be set up from bottom to top to the bottom of the platform deck for maintenance work. In addition, the operator needs to face the work position with his back to the work position during the construction process, which is inefficient and easily causes fatigue and injury to the construction workers. Utility Model Content

[0004] The utility model aims to at least solve the technical problems existing in the prior art that "it is necessary to set up scaffolding from bottom to top under the platform deck, which is difficult to construct. In addition, during the construction process, the operator needs to face the work position with his back facing up, which is inefficient and easily causes fatigue and injury to the construction personnel." To this end, the utility model proposes a maintenance structure under the offshore platform, which can maintain the offshore platform on site, reduce the number of times the offshore platform returns, and improve construction efficiency. It protects the safety of construction personnel, facilitates construction, and reduces maintenance costs.

[0005] According to some embodiments of the utility model, the maintenance structure below the offshore platform is installed on the offshore platform, and the offshore platform is provided with a platform deck, the middle part of the offshore platform is narrowed and closed, and the periphery of the platform deck forms an upward side wall; it includes:

[0006] A plurality of deck modules, wherein the deck modules are welded and painted to form the platform deck, and module closing seams are provided between adjacent deck modules;

[0007] A plurality of scaffolds are detachably arranged on the upward side wall on the west side of the platform deck, and the positions of the scaffolds and the closing seams of the modules correspond to each other;

[0008] Wherein, a plurality of connecting plates are arranged around the periphery below the platform deck, and the scaffolding is detachably connected to the connecting plates via connecting bolts.

[0009] According to some embodiments of the utility model, the scaffolding includes a scaffolding board and scaffolding baffles arranged on both sides of the scaffolding board, two scaffolding columns and two scaffolding diagonal braces are arranged on one side of the scaffolding board, the scaffolding diagonal braces and the scaffolding columns are arranged at a certain angle, and the tops of the scaffolding columns and the scaffolding diagonal braces are respectively detachably connected to the connecting plate.

[0010] According to some embodiments of the utility model, the scaffolding board and the scaffolding baffle adopt a wooden pedal structure or an aluminum pedal structure.

[0011] According to some embodiments of the utility model, two iron chains are provided on one side of the scaffolding board away from the scaffolding column, one end of the iron chain is detachably connected to the connecting plate, and the other end is connected to the scaffolding board.

[0012] According to some embodiments of the utility model, a scaffolding crossbeam is arranged between the scaffolding columns and the iron chains. The scaffolding crossbeam is located on one side of the scaffolding board and its two ends are respectively connected to the scaffolding columns and the iron chains.

[0013] According to some embodiments of the utility model, a scaffolding cross bar is arranged between the two scaffolding diagonal braces, the scaffolding cross bar is arranged between the two scaffolding diagonal braces, and the scaffolding cross bar is arranged between the two iron chains.

[0014] According to some embodiments of the utility model, the scaffolding columns, the scaffolding diagonal braces and the scaffolding cross beams respectively adopt angle steel structures.

[0015] According to some embodiments of the present invention, the thickness of the scaffolding beam is ≥6 mm.

[0016] According to some embodiments of the utility model, the iron chain adopts a chain steel structure, and the diameter of each section of the iron chain is ≥12 mm.

[0017] According to some embodiments of the present utility model, the scaffolding has a height of 1600 mm to 2000 mm and a width of 800 mm to 2000 mm.

[0018] According to some embodiments of the utility model, the maintenance structure below the offshore platform has at least the following beneficial effects: a plurality of connection plates are pre-set below the platform deck for the connection of the scaffolding, and the staff can carry out offshore maintenance work below the platform deck through the passage built by the scaffolding, without returning to the voyage for construction. The scaffolding adopts a detachable structure, which is convenient for construction, has good structural stability and high strength, and meets the load of offshore construction work. The staff does not need to work on their backs through the scaffolding, which is more efficient and reduces fatigue.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 A side view of an offshore platform according to an embodiment of the utility model;

[0022] Figure 2 A side view of a scaffolding below an offshore platform according to an embodiment of the utility model;

[0023] Figure 3 This is a top view of an offshore platform according to an embodiment of the utility model;

[0024] Figure 4 A three-dimensional diagram of a scaffolding of a maintenance structure below an offshore platform according to an embodiment of the utility model;

[0025] Figure 5 This is a side view of a scaffolding of a maintenance structure below an offshore platform according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] Offshore platform 100, platform deck 110, deck module 120, module closing seam 121,

[0028] Scaffolding 200, scaffolding columns 210, scaffolding diagonal braces 220, scaffolding crossbeams 230, scaffolding crossbars 240,

[0029] Connecting plate 310, connecting bolt 320,

[0030] Scaffolding board 410, scaffolding baffle 420,

[0031] Chain 500. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, top, bottom, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference below Figure 1-Figure 5 The maintenance structure below an offshore platform according to an embodiment of the utility model is described.

[0037] like Figure 1-Figure 5 As shown, the maintenance structure below the offshore platform is installed on the offshore platform 100, and the offshore platform 100 is provided with a platform deck 110. The platform deck 110 is arranged on the top of the offshore platform 100, and the middle part of the offshore platform 100 is narrowed and closed, so that the periphery of the platform deck 110 forms an upward side wall. The upward side wall of the platform deck 110 needs to be inspected, repaired, rusted, and painted during daily maintenance and repair. The platform deck 110 needs to be operated at high altitude and upwardly. The construction work is poor in safety and difficult to construct. It needs to be towed back to the dock for construction, which affects the construction efficiency. The utility model realizes offshore construction work by installing a detachable scaffolding 200.

[0038] It includes a plurality of deck modules 120 and a plurality of scaffolds 200. The deck modules 120 are welded and coated to form the platform deck 110, and module closure seams 121 are provided between adjacent deck modules 120. The module closure seams 121 are the key areas for maintenance and repair of the offshore platform 100, and the staff are required to conduct detailed inspections on the connection stability and structural integrity.

[0039] The deck modules 120 form the overall structure of the platform deck 110. During the closing stage of the overall structure of the platform deck 110, the structure below it needs a series of construction processes such as positioning, assembly, welding, and painting. The high-altitude construction work of the upper structure at the closing seam of the deck module 120 is difficult and the construction safety is poor. A scaffold 200 can be set up in the upper range below the offshore platform 100, and the scaffold 200 can be set up according to actual needs to meet the actual safety construction requirements.

[0040] The scaffolding 200 is detachably arranged on the upper side wall of the west side of the platform deck 110, and the positions of the scaffolding 200 and the module closing seam 121 correspond to each other. A plurality of connecting plates 310 are arranged around the lower periphery of the platform deck 110, and the scaffolding 200 and the connecting plates 310 are detachably connected by connecting bolts 320.

[0041] Specifically, the scaffolding 200 is set up in the whole area under the platform deck 110 to meet the full range of construction traffic requirements. According to actual needs, the connecting plate 310 is welded in advance in the whole area under the platform deck 110 and fixedly connected to the structure under the platform deck 110. The connecting plate 310 is pre-drilled and connected to the scaffolding 200 by bolts. The workers can quickly adjust the position and build the scaffolding 200 through the connecting plate 310.

[0042] The offshore platform 100 is in the construction stage and delivered to the offshore operation stage after the construction is completed. The scaffolding 200 can be set up in the upper range below the offshore platform 100 according to actual needs to meet the actual safety construction requirements. At the same time, the scaffolding 200 can be dismantled and installed at any time according to the actual construction time node.

[0043] The structure on the upper surface below the platform deck 110 needs to be inspected and observed regularly to promptly discover and repair defects in the structure of the platform deck 110, and to perform renovation and painting operations on the surface of the structure of the platform deck 110. A scaffold 200 can be set up on the upper surface below the offshore platform 100 according to actual needs to meet actual safety construction requirements.

[0044] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the scaffolding 200 includes a scaffolding board 410 and a scaffolding baffle 420 arranged on both sides of the scaffolding board 410, two scaffolding columns 210 and two scaffolding diagonal braces 220 are arranged on one side of the scaffolding board 410, and the scaffolding diagonal braces 220 and the scaffolding columns 210 are arranged at a certain angle, and the tops of the scaffolding columns 210 and the scaffolding diagonal braces 220 are detachably connected to the connecting plate 310 respectively.

[0045] Specifically, the scaffolding board 410 is used as a standing area for workers, and scaffolding baffles 420 are arranged on both sides to prevent falling into the sea surface, thereby improving safety. The scaffolding diagonal brace 220 and the scaffolding column 210 are respectively connected to different connecting plates 310, and the scaffolding diagonal brace 220 and the scaffolding column 210 are rigidly connected on the scaffolding board 410 through connecting bolts 320.

[0046] In a further embodiment, the scaffolding board 410 and the scaffolding baffle 420 are made of a wooden pedal structure or an aluminum pedal structure. Specifically, the scaffolding board 410 and the scaffolding baffle 420 are made of a common pedal material specification, and are connected to each adjacent component by binding.

[0047] In a further embodiment, Figure 4 and Figure 5 As shown, two iron chains 500 are provided on one side of the scaffolding board 410 away from the scaffolding column, one end of the iron chain 500 is detachably connected to the connecting plate 310 , and the other end is connected to the scaffolding board 410 .

[0048] Specifically, the scaffolding board 410 is fixed at three points through the scaffolding column 210, the scaffolding diagonal brace 220 and the iron chain 500, thereby improving the structural stability of the scaffolding 200 and effectively preventing shaking.

[0049] The scaffolding columns 210 and the scaffolding braces 220 on one side of the scaffolding 200 are fixed in a relatively rigid manner. The iron chain 500 on the other side is fixed in a relatively free and flexible manner. The hybrid connection method combining rigidity and free ends is adopted on both sides of the scaffolding 200, which can reduce the damage to the components of the scaffolding 200 and protect the main structure below the platform deck 110.

[0050] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, a scaffolding crossbeam 230 is provided between the scaffolding column 210 and the iron chain 500. The scaffolding crossbeam 230 is located on one side of the scaffolding board 410 and its two ends are respectively connected to the scaffolding column 210 and the iron chain 500. The scaffolding crossbeam 230 is used to strengthen the structural strength of the scaffolding board 410 and connect the iron chain 500 and the scaffolding column 210 to improve the structural strength.

[0051] In a further embodiment, Figure 4 and Figure 5 As shown, a scaffolding crossbar 240 is provided between the two scaffolding diagonal braces 220, a scaffolding crossbar 240 is provided between the two scaffolding diagonal braces 220, and a scaffolding crossbar 240 is provided between the two iron chains 500. Specifically, the scaffolding crossbar 240 is used as a guardrail to prevent workers from falling into the water.

[0052] A scaffolding 200 is set up in the whole area below the platform deck 110. The scaffolding columns 210, scaffolding braces 220, scaffolding beams 230, scaffolding crossbars 240, scaffolding boards 410, scaffolding baffles 420, and chains 500 of the scaffolding 200 are all movable and detachable structures, which can be disassembled and assembled at any time according to the construction time requirements.

[0053] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the scaffolding columns 210, the scaffolding braces 220 and the scaffolding beams 230 are respectively made of angle steel structures.

[0054] Specifically, the scaffolding columns 210 and the scaffolding braces 220 are made of angle steel structural material, the material is Q235, the length is determined according to the actual layout, and the connection with each adjacent component is bolted, using universal material specifications.

[0055] The scaffolding crossbeam 230 is made of angle steel composite structural material, and the material is Q235. The scaffolding crossbar 240 is made of steel pipe structural material, and the material is Q235. The length is determined according to the actual layout, and the connection with each adjacent component is connected by binding.

[0056] In a further embodiment, the thickness of the scaffolding crossbeam 230 is ≥ 6 mm. The length of the scaffolding crossbeam 230 is determined according to the actual layout, and the connection with each adjacent component is bolted, using universal material specifications.

[0057] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the iron chain 500 adopts a chain steel structure, and the diameter of each section of the iron chain 500 is ≥12mm. Specifically, the iron chain 500 adopts a chain steel structure material, the material is Q235, the specification diameter is above 12mm, the length is determined according to the actual lofting, and the connection between each adjacent component is bolted, and the general material specification is adopted.

[0058] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the height of the scaffolding 200 is 1600mm-2000mm, and the width is 800mm-2000mm. Specifically, the width of the scaffolding 200 meets the requirements of the construction range. According to the actual needs of offshore maintenance, it can be set up in the entire area below the platform deck 110 to meet the full range of construction traffic requirements. The height of the scaffolding 200 is adjusted according to the actual needs of offshore maintenance.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A maintenance structure below an offshore platform, installed on an offshore platform (100), wherein the offshore platform (100) is provided with a platform deck (110), wherein the middle portion of the offshore platform (100) is narrowed and closed, and the periphery of the platform deck (110) forms an upward side wall; characterized in that: include: A plurality of deck modules (120), wherein the deck modules (120) are welded and painted to form the platform deck (110), and module closing seams (121) are provided between adjacent deck modules (120); A plurality of scaffolds (200) are detachably arranged on the upward side wall of the west side of the platform deck (110), and the positions of the scaffolds (200) and the module closing seams (121) correspond to each other; A plurality of connection plates (310) are arranged around the lower periphery of the platform deck (110), and the scaffolding (200) and the connection plates (310) are detachably connected via connection bolts (320).

2. The maintenance structure below the offshore platform according to claim 1, characterized in that: The scaffolding (200) comprises a scaffolding board (410) and scaffolding baffles (420) arranged on both sides of the scaffolding board (410); two scaffolding columns (210) and two scaffolding diagonal braces (220) are arranged on one side of the scaffolding board (410); the scaffolding diagonal braces (220) and the scaffolding columns (210) are arranged at a certain angle; the tops of the scaffolding columns (210) and the scaffolding diagonal braces (220) are respectively detachably connected to the connecting plate (310).

3. The maintenance structure below the offshore platform according to claim 2, characterized in that: The scaffolding board (410) and the scaffolding baffle (420) adopt a wooden pedal structure or an aluminum pedal structure.

4. The maintenance structure below the offshore platform according to claim 2, characterized in that: Two iron chains (500) are arranged on one side of the scaffolding board (410) away from the scaffolding column. One end of the iron chain (500) is detachably connected to the connecting plate (310), and the other end is connected to the scaffolding board (410).

5. The maintenance structure below the offshore platform according to claim 4, characterized in that: A scaffolding crossbeam (230) is arranged between the scaffolding columns (210) and the iron chain (500). The scaffolding crossbeam (230) is located on one side of the scaffolding board (410) and its two ends are respectively connected to the scaffolding columns (210) and the iron chain (500).

6. The maintenance structure below the offshore platform according to claim 5, characterized in that: A scaffolding crossbar (240) is arranged between the two scaffolding diagonal braces (220), the scaffolding crossbar (240) is arranged between the two scaffolding diagonal braces (220), and the scaffolding crossbar (240) is arranged between the two iron chains (500).

7. The maintenance structure below the offshore platform according to claim 6, characterized in that: The scaffolding columns (210), the scaffolding diagonal braces (220) and the scaffolding crossbeams (230) are respectively made of angle steel structures.

8. The maintenance structure below the offshore platform according to claim 5, characterized in that: The thickness of the scaffolding crossbeam (230) is ≥6 mm.

9. The maintenance structure below the offshore platform according to claim 4, characterized in that: The iron chain (500) adopts a chain steel structure, and the diameter of each section of the iron chain (500) is ≥12 mm.

10. The maintenance structure below the offshore platform according to any one of claims 2 to 9, characterized in that: The scaffold (200) has a height of 1600 mm to 2000 mm and a width of 800 mm to 2000 mm.

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