Construction platform for mark iii membrane type enclosure system

Abstract

The application discloses a construction platform for a Mark III thin film type enclosure system, which comprises a main frame, a running mechanism and automatic installation equipment. The main frame comprises a first extension direction and a second extension direction which are perpendicular to each other in a plane, and a third extension direction which is perpendicular to the plane. The running mechanism surrounds the periphery of the main frame and is in sliding connection with the main frame. The automatic installation equipment is arranged on the side of the running mechanism far away from the main frame and is in sliding connection with the running mechanism. Compared with the scheme of erecting a scaffold in a liquid tank, the construction platform in the application changes the construction mode assisted by tooling and manpower into an operation mode of mechanical automatic installation assisted by manpower, thereby saving a large amount of labor cost and improving construction efficiency. The automatic construction is far higher than manual assembly in assembly precision, and can improve product quality. The light-weight structure frame design can reduce the material cost of the original scaffold main frame.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shipbuilding, in particular to a construction platform for Mark III membrane containment system. BACKGROUND

[0002] The Mark-III membrane containment system is a kind of membrane containment system widely used in LNG transport ship liquid cargo tank and fuel tank of dual-fuel ship. As the core structure of the liquid tank, the containment system has the characteristics of complex construction operation, heavy weight of parts, high tightness requirement, etc. During the construction stage, many works such as installation, pasting, assembly, welding and tightness test of design parts are required, and a large number of light and heavy equipment are needed for each working procedure. Therefore, it is necessary to provide a necessary working plane. The current scheme is to fully erect scaffolding in the liquid cargo tank, so as to ensure that the workers can install all parts to each position in the tank with the assistance of mechanical equipment.

[0003] Due to the large space of the liquid tank, the amount of parts used by the fully erected scaffolding in the liquid tank is huge, and the erection and removal work is huge and time-consuming. At the same time, due to the weight of the truss type scaffolding parts, the working table structure is not flexible enough to adjust, and in order to meet the construction requirements, the scaffolding is often temporarily erected and dismantled on site, which has a great impact on the entire construction process. SUMMARY

[0004] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a construction platform for Mark III membrane containment system, which has small volume, light weight and is convenient to disassemble and assemble, so as to greatly reduce the need for temporary adjustment of scaffolding during the construction of the containment system.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the present application provides a construction platform for Mark III membrane containment system, which comprises:

[0006] The main frame comprises a first extension direction and a second extension direction perpendicular to each other in a plane, and a third extension direction perpendicular to the plane;

[0007] The running mechanism surrounds the periphery of the main frame and is in sliding connection with the main frame;

[0008] The automatic installation device is arranged on the side of the running mechanism away from the main frame and is in sliding connection with the running mechanism.

[0009] Optionally, the main frame comprises:

[0010] A plurality of columns are arranged in a circumferential direction in the plane, and each column extends along the third extension direction;

[0011] a plurality of beam structures, including a first beam structure extending along a first extension direction and a second beam structure extending along a second extension direction, each beam structure connecting two adjacent columns;

[0012] a connecting channel arranged parallel to the plane, connecting a column close to the running mechanism and the running mechanism adjacent to the column along the first extension direction.

[0013] Optionally, the running mechanism is provided with a slide rail along the extension direction of the side away from the main frame, and the automatic installation device is in sliding connection with the slide rail.

[0014] Optionally, the running mechanism is further provided with a moving workbench, and the moving workbench is in sliding connection with the slide rail.

[0015] Optionally, the running mechanism comprises:

[0016] a first running mechanism in sliding connection with the first beam structure along the first extension direction;

[0017] a second running mechanism in sliding connection with the second beam structure along the second extension direction.

[0018] Optionally, the main frame further comprises:

[0019] a first running slide rail arranged on the first beam structure and extending along the extension direction of the first beam structure, and the first running mechanism is in sliding connection with the first running slide rail;

[0020] a second running slide rail arranged on the second beam structure and extending along the extension direction of the second beam structure, and the second running mechanism is in sliding connection with the second running slide rail.

[0021] Optionally, the main frame is enclosed by the columns, the beam structures and the connecting channel to form a three-dimensional structure, the three-dimensional structure comprises a top surface, a bottom surface arranged opposite to the top surface, a first side surface and a second side surface arranged opposite to the first side surface, sequentially connected along the top surface, the first side surface, the bottom surface and the second side surface to form a closed loop structure, and the closed loop structure comprises a first end surface and a second end surface arranged opposite to each other at two ends of the closed loop structure.

[0022] Optionally, the first running mechanism comprises:

[0023] a facade rail arranged on the first end surface and the second end surface and extending along a third extension direction on the first end surface or the second end surface.

[0024] Optionally, the second running mechanism comprises:

[0025] a ring-shaped rail arranged around the first side surface, the top surface and the second side surface to enclose the periphery of the main frame;

[0026] A bottom rail is arranged on the bottom surface and extends along the first extension direction.

[0027] An excess rail is arranged on the column of the main frame and is used to connect the annular rail and the bottom rail.

[0028] Optionally, the mobile workbench comprises:

[0029] A platform body is in sliding connection with the slide rail on the running mechanism.

[0030] An armrest guardrail is fixedly connected with the platform body and extends on the platform body in a direction perpendicular to the platform body.

[0031] Compared with the prior art, the construction platform for the Mark III thin film type containment system has at least the following advantages

[0032] Beneficial effects:

[0033] The construction platform for the Mark III thin film type containment system comprises a main frame, a running mechanism, and an automatic installation device. The main frame comprises a first extension direction X and a second extension direction Y perpendicular to each other in a plane, and a third extension direction Z perpendicular to the plane. The running mechanism surrounds the periphery of the main frame and is in sliding connection with the main frame. The automatic installation device is arranged on a side of the running mechanism away from the main frame and is in sliding connection with the running mechanism. Thus, when the containment system construction is performed on a liquid cargo tank in a ship, the main frame of the construction platform is fixed to a bottom wall in the liquid cargo tank, the running mechanism can move along the main frame to transport the automatic installation device arranged on the running mechanism to each part of the inner wall of the liquid cargo tank, so as to construct and build the containment system on the tank wall of the liquid cargo tank. Compared with the scheme of full scaffolding in the liquid tank, the construction platform in the present application changes the construction mode of manpower assisted by tooling from manpower assisted mechanical automatic installation, saves a large amount of labor cost, and improves the construction efficiency. The automatic construction is far higher than manual assembly in assembly precision, which can improve the product quality. The light-weight structure frame design can reduce the material cost of the original scaffolding main frame. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 FIG. 1 is a structural schematic view of the construction platform for the Mark III thin film type containment system in the liquid cargo tank in the embodiment of the present application;

[0035] Figure 2 FIG. 2 is a structural schematic view of the liquid cargo tank in the embodiment of the present application;

[0036] Figure 3 FIG. 3 is a front view of the construction platform for the Mark III thin film type containment system in the liquid cargo tank in the embodiment of the present application;

[0037] Figure 4 is a front view of the construction platform in an embodiment of the present application;

[0038] Figure 5 is a front view of the construction platform in an embodiment of the present application; Figure 4 is an enlarged view of B in FIG. 30.

[0039] Figure 6 is a side view of the construction platform in an embodiment of the present application;

[0040] Figure 7 is a plan view of the construction platform of the Mark III membrane containment system placed in a liquid cargo tank in an embodiment of the present application;

[0041] Figure 8 is a structural schematic view of the upright column in an embodiment of the present application;

[0042] Figure 9 is an enlarged view of B in FIG. 30. Figure 8

[0043] LIST OF REFERENCE NUMERALS

[0044] 10 main frame

[0045] 11 upright column

[0046] 111 leg

[0047] 112 column body

[0048] 113 step

[0049] 121 first beam structure

[0050] 122 second beam structure

[0051] 13 connecting passage

[0052] 20 running mechanism

[0053] 210 first running mechanism

[0054] 211 facade rail

[0055] 220 second running mechanism

[0056] 221 annular rail

[0057] 222 bottom rail

[0058] 223 excess rail

[0059] 30 mobile workbench

[0060] 31 platform main body

[0061] 32 handrail guard ​

[0062] 40 liquid cargo tank

[0063] 41 top wall

[0064] 42 bottom wall

[0065] 43 first side wall

[0066] 44 second side wall

[0067] 45 front wall

[0068] 46 rear wall

[0069] 47 process door

[0070] 48 access zone

[0071] 50 automated installation device

[0072] X first extension direction

[0073] Y second extension direction

[0074] Z third extension direction DETAILED DESCRIPTION

[0075] The present application will be described with respect to the following specific embodiments, which are intended to illustrate the present application and should not be construed to limit the scope of the present application. The present application can be implemented or applied in other different embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0076] It should be noted that the drawings provided in the embodiments of the present application only schematically illustrate the basic concepts of the present application, and although the drawings only show the components related to the present application, they are not drawn according to the number, shape and size of the components in actual implementation, and the shape, number and proportion of each component in actual implementation can be changed at will, and the layout form of the components can also be more complex. The structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the conditions that can be implemented by the present application, so they do not have technical substantive significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application.

[0077] The embodiments provide a construction platform for a Mark III thin film type enclosure system, with reference to Figure 1 and in combination with Figure 3The construction platform comprises a main frame 10, a running mechanism and an automatic installation device 50. The main frame 10 comprises a first extension direction X and a second extension direction Y perpendicular to each other in a plane, and a third extension direction Z perpendicular to the plane. The running mechanism surrounds the periphery of the main frame 10 and is in sliding connection with the main frame 10. The automatic installation device 50 is arranged on the side of the running mechanism away from the main frame 10 and is in sliding connection with the running mechanism. Thus, when the construction of the containment system of the liquid cargo tank 40 in the ship is carried out, the main frame 10 of the construction platform is fixed to the bottom wall 42 in the liquid cargo tank 40, and the running mechanism can move along the main frame 10 to transport the automatic installation device 50 arranged on the running mechanism to each part of the inner wall of the liquid cargo tank 40 to build and construct the containment system on the tank wall of the liquid cargo tank 40. Moreover, the automatic installation device 50 is in sliding connection with the running mechanism and can slide along the running mechanism to realize all-around construction.

[0078] Specifically, referring to Figure 1 and 3 , the main frame 10 is used to be fixed to the inner bottom wall 42 of the liquid cargo tank 40 and to provide a running channel for the running mechanism and to serve as a support structure for the running mechanism and the automatic installation device 50. The main frame 10 comprises a plurality of columns 11, a plurality of beam structures and a connecting channel 13. The plurality of columns 11 are arranged in a circumferential direction in the plane and each column 11 extends along the third extension direction Z. Moreover, referring to Figure 8 , each column 11 comprises a leg 111 and a column body 112. The leg 111 is used to be fixed to the bottom wall 42 in the liquid cargo tank 40 and to bear the overall weight of the system. The structure and material selection of the leg 111 need to meet the bearing requirements. The column body 112 is in fixed connection with the leg 111 and extends along the third extension direction Z to serve as a support structure of the main frame 10. Optionally, referring to Figure 9 , the column 11 is further provided with a step 113 which serves as a straight ladder for construction personnel to climb. Referring to Figure 1 , the plurality of beam structures are arranged parallel to the plane and connect adjacent two columns 11. The beam structure serves as a fixed connecting beam between the columns 11. In this embodiment, the beam structure comprises a first beam structure 121 extending along the first extension direction X and a second beam structure 122 extending along the second extension direction Y, and each beam structure connects adjacent two columns 11. In order to realize the sliding connection with the running mechanism, the first beam structure 121 and the second beam structure 122 are both provided with sliding rails to serve as the bearing body of the running mechanism and to provide necessary support and guidance for the movement of the running mechanism on the main frame. Referring to Figure 3The connecting channel 13 is arranged parallel to the plane and extends along the first extension direction X. The connecting channel 13 connects the column 11 and the operating mechanism adjacent to the column 11. Optionally, the connecting channel 13 is supported by some support beams, forming a structure that is paved above the support beams and parallel to the bottom wall 42 of the liquid cargo tank 40, providing the necessary passage space for construction personnel.

[0079] In this embodiment, refer to Figure 1 , Figure 2 as well as Figure 3 The main frame 10 is enclosed by columns 11, beams, and connecting channels 13 to form a three-dimensional structure. This three-dimensional structure includes a top surface, a bottom surface opposite to the top surface, a first side surface, and a second side surface opposite to the first side surface. These three surfaces are connected sequentially in the order of the top surface, the first side surface, the bottom surface, and the second side surface to form a closed loop structure. At both ends of the closed loop structure are a first end surface and a second end surface, which are opposite to each other. This three-dimensional structure is the same as the structure of the liquid cargo tank 40, but its overall size is slightly smaller than that of the liquid cargo tank 40. Furthermore, the top surface of the three-dimensional structure corresponds to the top wall 41 of the liquid cargo tank 40, the bottom surface corresponds to the bottom wall 42 of the liquid cargo tank 40, the first side surface corresponds to the first side wall 43 of the liquid cargo tank 40, the second side surface corresponds to the second side wall 44 of the liquid cargo tank 40, the first end surface corresponds to the front wall 45 of the liquid cargo tank 40, and the second end surface corresponds to the rear wall 46 of the liquid cargo tank 40.

[0080] Reference Figure 3 The operating mechanism is used to install the automatic installation equipment 50 and to provide support and guidance for the automatic installation equipment 50. In this embodiment, it includes a first operating mechanism 210 and a second operating mechanism 220. The first operating mechanism 210 is slidably connected to the first beam structure 121 along a first extending direction X, and the second operating mechanism 220 is slidably connected to the second beam structure 122 along a second extending direction Y. Correspondingly, a first operating slide rail is disposed on the first beam structure 121 and extends along the extending direction of the first beam structure 121, and the first operating mechanism 210 is slidably connected to the main frame 10 via the first operating slide rail. A second operating slide rail is disposed on the second beam structure 122 and extends along the extending direction of the second beam structure 122, and the second operating mechanism 220 is slidably connected to the main frame 10 via the second operating slide rail.

[0081] Optionally, refer to Figure 4 The first operating mechanism 210 includes a vertical track 211, which is disposed on the first end face and the second end face of the main frame 10, and extends along the third extending direction Z on the first end face or the second end face. Alternatively, the first operating mechanism 210 may also be formed as a C-shaped track extending along the direction of the first end face, the top face, and the second end face. The purpose of this first operating mechanism is to enable the automatic installation equipment to construct the front and rear walls of the liquid cargo tank.

[0082] Referring to Figure 3 and 6 , the second running mechanism 220 includes a ring track 221, a bottom track 222 and an overpass track 223. The ring track 221 is arranged around the first side, the top and the second side to enclose the periphery of the main frame 10. The bottom track 222 is arranged on the bottom surface and extends along the first extension direction X. The overpass track 223 is arranged on the column 11 of the main frame 10 and is used to connect the ring track 221 and the bottom track 222. The automatic installation equipment 50 and the moving platform mounted on the second running mechanism 220 can move and construct along the directions of the ring track 221, the overpass track 223 and the bottom track 222. Among them, the facade track 211 is used for construction of the front wall 45 and the rear wall 46 of the liquid cargo tank 40, and the ring track 221, the overpass track 223 and the bottom track 222 are used for construction of the first side wall 43, the top wall 41, the second side wall 44 and the bottom wall 42 of the liquid cargo tank 40.

[0083] Referring to Figure 3 , the automatic installation equipment 50 is arranged on the side of the running mechanism away from the main frame 10 and is in sliding connection with the running mechanism. The automatic installation equipment 50 can move along the running mechanism to construct and build the enclosure system of the inner tank wall of the liquid cargo tank 40. The automatic installation equipment 50 mainly completes the transfer work of parts through each track, has a certain flexibility itself, and through large and small range actions such as rotation, stretching, terminal fine adjustment, installs each part to the corresponding position. The automatic installation equipment 50 completes a series of operations by reading the part layout in the system and the code of each part. In this embodiment, the automatic installation equipment 50 can be a mechanical arm disclosed in the prior art, and the structure thereof will not be described one by one.

[0084] Referring to Figure 4The moving mechanism is further provided with a moving platform 30 which is also in sliding connection with the slide rail on the moving mechanism. Optionally, the slide rail on the moving mechanism can include the automatic installation device 50 slide rail and the moving platform slide rail, the moving platform 30 moves along the moving platform slide rail on the moving mechanism, and the automatic installation device 50 moves along the automatic installation device 50 slide rail on the moving mechanism. Optionally, the moving platform 30 includes a platform body 31 and a handrail 32. The platform body 31 is in sliding connection with the slide rail on the moving mechanism, and the handrail 32 is fixedly connected with the platform body 31 and extends on the platform body 31 in a direction perpendicular to the platform body 31. The moving platform 30 is mainly used for the installation operation of the heat insulation plate at the intersection position of the two planes, includes the two parts of the platform body 31 and the handrail 32, and is designed to have a hoisting lifting point according to requirements. The platform body 31 provides a safe and reliable working surface for the construction personnel to assist the operation of the automatic installation device 50, one end of the platform body 31 is connected with the moving mechanism, and the other end is close to the inner wall of the liquid cargo tank 40. The handrail 32 is arranged on the periphery of the platform body 31 to provide necessary protection for the construction personnel, so as to prevent high-falling accidents.

[0085] According to different construction states and construction requirements, the embodiment further provides a construction method for the Mark III thin film type containment system, and the specific steps are as follows:

[0086] 1) Material delivery

[0087] Referring to Figure 2 and 3 , in order to match the automatic operation platform, the liquid tank process door 47 is designed at the bottom of the front wall 45 or the rear wall 46 of the liquid tank, and the lower opening is flush with the inner bottom wall 42 of the liquid cargo tank 40. The materials required for the construction of the entire containment system enter the liquid tank through the liquid tank process door 47. The bottom of the liquid tank is provided with a material taking area 48 of the automatic installation device 50 according to construction requirements, the materials required for construction enter the material taking area 48 at the bottom of the liquid tank through the liquid tank process door 47, and the automatic installation device 50 completes the action of grabbing and moving to the installation position under the control of the system.

[0088] The system automatically calculates the moving track according to the position reached by the automatic installation device 50, controls the movement of the ring track 221, the vertical surface track 211 and the bottom surface track 222 and the butt joint between the vertical surface track 211 and the bottom surface track 222.

[0089] 2) Construction

[0090] Referring to Figure 1 , Figure 3 and Figure 7When the automatic installation device 50 moves the installation material to the installation area, the automatic installation device 50 automatically positions the installation configuration according to the installation surface size, and the installation process is fine-tuned, and finally the installation work is completed. After the installation is completed, the next component is grasped and installed according to the system instruction. If there is no work instruction, the automatic installation device 50 runs to the designated standby area to avoid interfering with the running track of other automatic installation devices 50.

[0091] The worker climbs to the passage through the column 11, and enters the mobile workbench 30 through the passage, and makes necessary auxiliary work and construction precision inspection for the construction of the automatic installation device 50.

[0092] The matching Mark III thin film type enclosure system construction is built, and compared with the scheme of full scaffolding in the liquid tank, has the following improvement effects: 1) replacing the construction mode assisted by tooling auxiliary labor into the operation mode of human-powered mechanical automatic installation, saving a large amount of labor cost and improving construction efficiency. 2) The automatic construction is far higher than manual assembly in assembly precision, and the product quality is improved. 3) The light-weight structure frame design reduces the material cost of the original scaffold main frame.

[0093] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A construction platform for a Mark III thin film enclosure system, characterized by, The construction platform comprises: a main frame comprising a first extension direction and a second extension direction perpendicular to each other in a plane, and a third extension direction perpendicular to the plane; a running mechanism surrounding the periphery of the main frame and in sliding connection with the main frame; the main frame comprises a plurality of columns, a plurality of beam structures and a connecting channel, the plurality of columns are arranged in a circumferential direction in the plane, and each column extends along the third extension direction; the plurality of beam structures comprise a first beam structure extending along the first extension direction and a second beam structure extending along the second extension direction, and each beam structure connects two adjacent columns; the connecting channel is arranged parallel to the plane, and connects a column close to the running mechanism and the running mechanism adjacent to the column along the first extension direction; the main frame is enclosed by the columns, the beam structures and the connecting channel to form a three-dimensional structure, which comprises a top surface, a bottom surface arranged opposite to the top surface, a first side surface, and a second side surface arranged opposite to the first side surface, and sequentially connected along the top surface, the first side surface, the bottom surface and the second side surface to form a closed loop structure, and comprising a first end surface and a second end surface at both ends of the closed loop structure, and the first end surface and the second end surface are arranged opposite to each other; the running mechanism comprises a first running mechanism and a second running mechanism, the first running mechanism is in sliding connection with the first beam structure along the first extension direction, and the second running mechanism is in sliding connection with the second beam structure along the second extension direction; the first running mechanism comprises a facade track, the facade track is arranged on the first end surface and the second end surface and extends along the third extension direction on the first end surface or the second end surface; the second running mechanism comprises a ring track, a bottom surface track and an overpass track, the ring track is arranged around the first side surface, the top surface and the second side surface to surround the periphery of the main frame; the bottom surface track is arranged on the bottom surface and extends along the first extension direction; the overpass track is arranged on the column of the main frame and is used for connecting the ring track and the bottom surface track; an automatic installation device is arranged on a side of the running mechanism away from the main frame and in sliding connection with the running mechanism.

2. The construction platform of claim 1, wherein, a slide rail is arranged on the side of the running mechanism away from the main frame along the extension direction of the running mechanism, and the automatic installation device is in sliding connection with the slide rail.

3. The construction platform of claim 2, wherein, a mobile workbench is further arranged on the running mechanism and in sliding connection with the slide rail.

4. The construction platform of claim 1, wherein, the main frame further comprises: a first running slide rail arranged on the first beam structure and extending along the extension direction of the first beam structure, and the first running mechanism is in sliding connection with the first running slide rail; a second running slide rail arranged on the second beam structure and extending along the extension direction of the second beam structure, and the second running mechanism is in sliding connection with the second running slide rail.

5. The construction platform of claim 3, wherein, the mobile workbench comprises: a platform body in sliding connection with the slide rail on the running mechanism; Handrails are fixedly connected with the platform body and extend on the platform body in a direction perpendicular to the platform body.

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