Horizontal jacket hoisting and shipping method
By lifting the horizontal conduit rack with a gantry crane, the problem of the horizontal conduit rack occupying resources while loading the ship is solved, and efficient utilization of resources and reduction of loading costs are achieved.
Patent Information
- Application Number
- CN202411166153.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2024-12-20
AI Technical Summary
The ship loading method of existing horizontal conduit racks occupies site resources and beam lifting resources, and the beam lifting cannot be efficiently transferred and utilized during use, resulting in high loading costs.
The gantry crane is used to connect the hoisting lugs of the horizontal conduit frame, and walk and hook it simultaneously through two common rail gantry cranes. The horizontal conduit frame is hoisted onto the barge, releasing the site slide and beam lifting resources, and efficiently utilize the gantry crane resources.
It effectively saves manpower, materials and tool resources, reduces the loading cost of horizontal conduit racks, and solves the problems of resource occupation and efficient transfer.
Smart Images
Figure CN119160791A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of marine engineering, and in particular relates to a method for hoisting and loading a horizontal jacket onto a ship. Background Art
[0002] There are two common ways to load horizontal jackets: 1. At the beginning of construction, several skids are placed on the slideway at the construction site, and the construction and assembly of the horizontal jacket are completed on the skids. After the construction is completed, the horizontal jacket is dragged to the designated position on the barge by the winch towing the skids. This method is the dragging and sliding loading of the horizontal jacket, and its biggest disadvantage is that the slideway resources of the site need to be occupied during the entire construction period of the horizontal jacket.
[0003] 2. At the beginning of construction, any location in the construction site (which must meet the requirements of the site bearing capacity during the construction process) can be freely selected as the construction location of the horizontal jacket. Several construction piers are placed at the construction location as the fulcrum to support the construction process of the horizontal jacket, and then several lifting beams are placed on the construction piers. The horizontal jacket can be constructed and assembled on the lifting beams or construction piers. After the construction is completed, the SPMT (self-propelled module transporter) is used to lift the lifting beams under the horizontal jacket for transportation and loading. This method is the SPMT roll-on / roll-off loading of the horizontal jacket. Its biggest disadvantage is that it is necessary to make multiple lifting beams with high manufacturing costs. The lifting beams are occupied during the entire construction cycle of the horizontal jacket, and after the SPMT roll-on / roll-off loading, the lifting beams need to fall on the shipping piers and be shipped out to sea with the horizontal jacket. The lifting beams can only be returned to the construction site with the barge after the jacket is installed offshore, resulting in the lifting beams being occupied for a long time during use and unable to be efficiently circulated and utilized.
[0004] Therefore, it is urgent to design a method for hoisting and loading a horizontal jacket to solve the above-mentioned problems. Summary of the invention
[0005] The object of the present invention is to provide a method for hoisting and loading a horizontal jacket, which has the advantages of not only releasing the slideway resources and beam lifting resources of the site, but also efficiently utilizing the gantry crane resources of the construction site, thereby solving the problems mentioned in the background technology.
[0006] To achieve the above-mentioned purpose, the specific technical scheme of a method for hoisting and loading a horizontal jacket onto a ship of the present invention is as follows: A method for hoisting and loading a horizontal jacket onto a ship comprises the following steps: S1. Install the lifting lugs on the horizontal conductor rack located on the construction site; S2. Move the gantry crane to the lifting position of the horizontal jacket; S3, connecting the gantry crane to the lifting lugs of the horizontal conductor frame; S4. Hoist the horizontal conductor rack onto the barge by means of a gantry crane; S5. Then, the horizontal jacket is placed on the barge deck.
[0007] Further, in S1, the lifting lugs are installed at the top end of the conduit on the horizontal conduit rack, and the specific number of the lifting lugs is four, and the four lifting lugs are symmetrically arranged on both sides of the conduit of the horizontal conduit rack.
[0008] Furthermore, in S2, the specific number of gantry cranes is two, and the two gantry cranes share a common track.
[0009] Furthermore, a gantry crane track is provided on the construction site, and two gantry cranes are slidably connected to the gantry crane track. Then, the two gantry cranes are moved to the lifting position of the horizontal conductor rack through the gantry crane track.
[0010] Further, in S3, the upper trolley hooks or the lower trolley hooks of the two gantry cranes are lowered to a certain height, and the lifting ears of the horizontal conductor rack are connected to the upper trolley hooks or the lower trolley hooks of the two gantry cranes through the lifting slings.
[0011] Further, in S4, a shipping pier is provided on the barge, and the horizontal jacket is placed on the shipping pier by a gantry crane.
[0012] Furthermore, the upper trolleys or lower trolleys of the two gantry cranes synchronously lift the hook, travel and move, and after the horizontal jacket connected to the upper trolley hook or the lower trolley hook through the lifting sling is lifted to the top of the barge's shipping pier, the upper trolley hook or the lower trolley hook is slowly lowered to place the horizontal jacket on the barge's shipping pier.
[0013] Furthermore, a harbor is opened on the construction site, barges are moored in the harbor, and two gantry cranes can slide across the harbor through gantry crane tracks.
[0014] Furthermore, the method further includes S6, removing the slings connecting the lower trolley hook or the upper trolley hook and the lifting ears of the two gantry cranes.
[0015] The present invention has the following advantages: after the lifting point of the horizontal jacket is connected to the upper trolley hook or the lower trolley hook of the gantry crane by the lifting sling, the horizontal jacket is lifted to the sea transport pier of the barge by using the synchronous movement of two common rail gantry cranes and the upper trolleys or the lower trolleys of the two gantry cranes to lift, move and release the hooks. The present invention can overcome the pain point problem that the horizontal jacket needs to occupy the slideway and lifting beam resources for a long time during the construction process, thereby releasing the slideway resources and lifting beam resources of the site, and can also efficiently utilize the gantry crane resources of the construction site, and can greatly save the resource costs of manpower, materials, and tools, and effectively reduce the loading operation cost of the horizontal jacket. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the hoisting arrangement of the hoisting position of the horizontal jacket of the present invention; Figure 2 It is a schematic diagram of the hoisting arrangement of the horizontal jacket of the present invention; Explanation of the markings in the figure: 1. Construction site; 11. Construction pier; 12. Harbor; 2. Gantry crane; 21. Gantry crane track; 22. Upper trolley; 23. Lower trolley; 24. Upper trolley hook; 25. Lower trolley hook; 3. Barge; 31. Ocean transport pier; 4. Horizontal conductor rack; 41. Lifting lug; 42. Lifting rigging. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.
[0018] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.
[0019] Please refer to the attached Figure 1 To Attachment Figure 2 The invention describes a method for hoisting and loading a horizontal jacket onto a ship.
[0020] At present, there are two conventional ways to load horizontal jackets: 1. At the beginning of construction, several skids are placed on the slideway at the construction site, and the construction and assembly of the horizontal jacket are completed on the skids. After the construction is completed, the horizontal jacket is dragged to the designated position on the barge by the winch towing the skids. This method is the dragging and sliding loading of the horizontal jacket, and its biggest disadvantage is that the slideway resources of the site need to be occupied during the entire construction period of the horizontal jacket.
[0021] 2. At the beginning of construction, any location in the construction site (which must meet the requirements of the site bearing capacity during the construction process) can be freely selected as the construction location of the horizontal jacket. Several construction piers are placed at the construction location as the fulcrum to support the construction process of the horizontal jacket, and then several lifting beams are placed on the construction piers. The horizontal jacket can be constructed and assembled on the lifting beams or construction piers. After the construction is completed, the SPMT (self-propelled module transporter) is used to lift the lifting beams under the horizontal jacket for transportation and loading. This method is the SPMT roll-on / roll-off loading of the horizontal jacket. Its biggest disadvantage is that it is necessary to make multiple lifting beams with high manufacturing costs. The lifting beams are occupied during the entire construction cycle of the horizontal jacket, and after the SPMT roll-on / roll-off loading, the lifting beams need to fall on the shipping piers and be shipped out to sea with the horizontal jacket. The lifting beams can only be returned to the construction site with the barge after the jacket is installed offshore, resulting in the lifting beams being occupied for a long time during use and unable to be efficiently circulated and utilized.
[0022] Therefore, this hoisting and loading method includes the following steps: S1, installing a lifting lug 41 on a horizontal conductor frame 4 located on a construction site 1; Specifically, the lifting lug 41 is installed at the top of the conduit on the horizontal conduit rack 4 , and the specific number of the lifting lug 41 is four, and the four lifting lugs 41 are symmetrically arranged on both sides of the conduit of the horizontal conduit rack 4 ; by arranging the four lifting lugs 41 on both sides of the conduit of the horizontal conduit rack 4 .
[0023] The horizontal jacket frame 4 on the construction site 1 is placed by constructing piers 11 .
[0024] S2, moving the gantry crane 2 to the lifting position of the horizontal jacket 4; Specifically, the specific number of the gantry cranes 2 is two, and the two gantry cranes 2 share a common track.
[0025] Specifically, a gantry crane track 21 is provided on the construction site 1, and two gantry cranes 2 are slidably connected to the gantry crane track 21. Then, the two gantry cranes 2 are moved to the lifting position of the horizontal conductor frame 4 through the gantry crane track 21.
[0026] S3, connecting the gantry crane 2 to the lifting lug 41 of the horizontal conductor frame 4; Specifically, the upper trolley hook 24 or the lower trolley hook 25 of the two gantry cranes 2 is lowered to a certain height, and the lifting lug 41 of the horizontal conductor frame 4 is connected to the upper trolley hook 24 or the lower trolley hook 25 of the two gantry cranes 2 through the lifting sling 42.
[0027] Preferably, the upper trolley hook 24 of the two gantry cranes 2 is lowered to a certain height, and the lifting lug 41 of the horizontal jacket 4 is connected to the upper trolley hook 24 of the two gantry cranes 2 through a sling 42; in other embodiments of the present invention, the lower trolley hook 25 of the two gantry cranes 2 may also be lowered to a certain height, and the lifting lug 41 of the horizontal jacket 4 is connected to the lower trolley hook 25 of the two gantry cranes 2 through a sling 42, or both the upper trolley hook 24 and the lower trolley hook 25 of the two gantry cranes 2 are lowered to a certain height, and the lifting lug 41 of the horizontal jacket 4 is connected to the upper trolley hook 24 and the lower trolley hook 25 of the two gantry cranes 2 through a sling 42.
[0028] Upper trolley hook 24 lower trolley hook 25 lifting ear 41 lifting sling 42 Regarding the number, arrangement form and position of the lifting ears 41 above the horizontal jacket 4, there is no limit on the specific number of lifting ears 41, the arrangement form and position, which are determined by the jacket lifting and loading plan.
[0029] Whether the lifting lug 41 above the horizontal jacket 4 is connected to the upper trolley hook 24 or the lower trolley hook 25 of the two gantry cranes 2 through the lifting sling 42 is not limited to a specific connection form, which depends on the jacket lifting and loading plan.
[0030] S4, moving the horizontal jacket 4 onto the barge 3 by means of the gantry crane 2; Specifically, a sea transport pier 31 is provided on the barge 3 , and the horizontal jacket 4 is placed on the sea transport pier 31 by the gantry crane 2 .
[0031] Specifically, the two gantry cranes 2 move synchronously, the upper trolleys 22 or the lower trolleys 23 of the two gantry cranes 2 are hooked and moved synchronously, and the horizontal jacket frame 4 connected to the upper trolley hook 24 or the lower trolley hook 25 through the lifting sling 42 is lifted to the top of the sea transport pier 31 of the barge 3, and then the upper trolley hook 24 or the lower trolley hook 25 is slowly lowered to place the horizontal jacket frame 4 on the sea transport pier 31 of the barge 3.
[0032] A harbor 12 is opened on the construction site 1, and the barge 3 is moored in the harbor 12, and two gantry cranes 2 can slide across the harbor 12 through the gantry crane rails 21, so that the two gantry cranes 2 can lift the horizontal jacket 4 and move it to the barge 3 to achieve the effect of shipping piers 31.
[0033] S5, then placing the horizontal jacket 4 on the barge 3; S6, remove the slings 42 connecting the lower trolley hook 25 or the upper trolley hook 24 of the two gantry cranes 2 with the lifting lug 41, and unhook the lower trolley hook 25 or the upper trolley hook 24 of the two gantry cranes 2, thus completing a hoisting and loading operation of the horizontal jacket 4.
[0034] If the next hoisting and loading operation of the horizontal jacket 4 is to be continued, steps S1 to S6 can be repeated.
[0035] After the present invention connects the lifting point of the horizontal jacket 4 with the upper trolley hook 24 or the lower trolley hook 25 of the gantry crane 2 through the lifting sling 42, the horizontal jacket 4 is lifted and transported to the sea pier 31 of the barge 3 by using the synchronous movement of two common rail gantry cranes 2 and the synchronous hooking, moving and releasing of the upper trolleys 22 or the lower trolleys 23 of the two gantry cranes 2. The present invention can overcome the pain point problem that the horizontal jacket 4 needs to occupy the slideway and beam lifting resources for a long time during the construction process, thereby releasing the slideway resources and beam lifting resources of the site, and can also efficiently utilize the gantry crane 2 resources of the construction site 1, and can greatly save the resource costs of manpower, materials, and tools, and effectively reduce the loading operation cost of the horizontal jacket 4.
[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.
Claims
1. A method for hoisting and loading a horizontal jacket onto a ship, characterized in that: The following steps are involved: S1. Install the lifting lugs on the horizontal jacket located on the construction site; S2. Move the gantry crane to the lifting position of the horizontal jacket; S3. Connect the gantry crane to the lifting lugs of the horizontal jacket; S4. Hoist the horizontal jacket onto the barge using a gantry crane; S5. The horizontal jacket is then placed on the barge deck.
2. The method for hoisting and loading a horizontal jacket onto a ship according to claim 1, characterized in that: In S1, the lifting lugs are installed at the top end of the conduit on the horizontal conduit rack, and the specific number of the lifting lugs is two, and the two lifting lugs are symmetrically arranged on both sides of the conduit of the horizontal conduit rack.
3. The method for hoisting and loading a horizontal jacket onto a ship according to claim 1, characterized in that: In S2, there are two gantry cranes, and the two gantry cranes share a common track.
4. The method for hoisting and loading a horizontal jacket onto a ship according to claim 3, characterized in that: There is a gantry crane track on the construction site, and two gantry cranes are slidably connected to the gantry crane track. Then the two gantry cranes are moved to the lifting position of the horizontal jacket through the gantry crane track.
5. The method for hoisting and loading a horizontal jacket onto a ship according to claim 1, characterized in that: In S3, the upper trolley hooks or the lower trolley hooks of the two gantry cranes are lowered to a certain height, and the lifting lugs of the horizontal jacket are connected to the upper trolley hooks or the lower trolley hooks of the two gantry cranes through the lifting slings.
6. The method for hoisting and loading a horizontal jacket onto a ship according to claim 5, characterized in that: The upper trolley hook or the lower trolley hook of each gantry crane is connected to the adjacent lifting lug through a lifting sling.
7. The method for hoisting and loading a horizontal jacket onto a ship according to claim 1, characterized in that: In S4, a marine pier is provided on the barge, and the horizontal jacket is placed on the marine pier by a gantry crane.
8. The method for hoisting and loading a horizontal jacket onto a ship according to claim 7, characterized in that: The upper or lower trolleys of the two gantry cranes synchronously lift the hook, move, and the horizontal jacket connected to the upper or lower trolley hook through the lifting sling is lifted to the top of the barge's shipping pier. Then, the upper or lower trolley hook is slowly lowered to place the horizontal jacket on the barge's shipping pier.
9. The method for hoisting and loading a horizontal jacket onto a ship according to claim 8, characterized in that: A harbor is opened on the construction site, where barges are moored, and two gantry cranes can slide across the harbor via gantry crane tracks.
10. The method for hoisting and loading a horizontal jacket onto a ship according to claim 1, characterized in that: It also includes S6, removing the slings connecting the lower trolley hook or the upper trolley hook and the lifting lug of the two gantry cranes.