Steel frame rail car for socket assembly installation of glass fiber seawater pipelines

Abstract

The utility model discloses a steel frame rail car for socket assembly installation of glass fiber seawater pipelines, which is provided with a steel frame, the steel frame adopts a frame structure, the lower part of the top of the steel frame is longitudinally communicated to form a pipeline hoisting space, the bottom of the steel frame is provided with rollers, the two sides of the tops of the front end and the rear end of the steel frame are provided with hoisting plates, and the hoisting plates are provided with hoisting holes. By the adoption of the structure that the pipeline hoisting space is arranged on the rail car, the purposes of fixed site segmental hoisting into a ditch and rail car under-ditch transportation are achieved, the limitation of a crane hoisting site can be overcome, and hoisting operation is reduced; and meanwhile, manual chain block leveling and pairing are adopted, so that the adjustment operation precision is improved, disturbance to the installed pipeline is reduced, the installation efficiency and quality of the GRP seawater pipeline can be effectively improved, and the operation cost is reduced. The device is simple in structure, convenient to operate and high in practicability, and can be suitable for installation of GRP seawater pipelines of different specifications by adjusting the sizes of the stand columns and the cross beams.

Description

Technical Field

[0001] This utility model relates to the field of seawater pipeline installation in LNG receiving stations, and in particular to a steel-framed railcar for the installation of glass fiber seawater pipeline socket assembly. Background Technology

[0002] Due to the cryogenic nature of liquefied LNG, a heat exchange gasification system is a crucial component of the receiving terminal to facilitate the conversion from liquid to gas and ensure the supply of natural gas. The seawater system provides the heating medium—seawater—to the heat exchange gasification unit, enabling the conversion from liquid to gas through heat exchange. The construction of fiberglass reinforced plastic (GRP) seawater pipelines directly impacts the commissioning of the unit. Furthermore, their large diameter, socket-type installation, and manual wrapping characteristics make them a challenging aspect of seawater system construction.

[0003] The socket assembly process for GRP (Gas Reinforced Plastic) seawater pipelines is a crucial step in the overall pipeline construction. Its installation efficiency and interface quality directly impact the overall construction progress and subsequent operational safety of the seawater system. How to reduce the lifting operations of large-diameter pipelines, overcome the difficulties of crane lifting and assembly, improve the efficiency and quality of GRP seawater pipeline socket installation, and lower construction costs has been a persistent challenge for countless construction workers.

[0004] Currently, the installation of socket joints in GRP seawater pipeline construction mainly faces the following difficulties:

[0005] 1) GRP seawater pipelines have a large diameter, typically greater than 1.5 meters, and seawater systems generally have two or more pipelines laid in the same trench. The excavation of the seawater pipeline foundation pit generates a large amount of earthwork, which requires a large area of ​​the work area for storage, resulting in insufficient space for cranes to effectively use and failing to meet the needs of lifting machinery for hoisting operations.

[0006] 2) When using a crane for hoisting and assembly, the crane itself has insufficient precision and the force is difficult to control, which makes it difficult to level the GRP pipes during hoisting, easily causes O-ring deformation during assembly, and easily disturbs the already installed pipes. The hoisting cost and assembly efficiency cannot meet the actual construction needs on site. Utility Model Content

[0007] This utility model provides a steel frame railcar for installing socket joints of fiberglass seawater pipes to solve the technical problems existing in the prior art, which can improve installation efficiency and quality and reduce operating costs.

[0008] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is: a steel frame railcar for the installation of glass fiber seawater pipe socket assembly. The railcar is equipped with a steel frame, which adopts a frame structure. The top and bottom are longitudinally connected to form a pipe lifting space. Rollers are provided at the bottom. Lifting plates are provided on both the top and sides of the front and rear ends. Lifting holes are provided on the lifting plates.

[0009] Straight ladders are provided on both sides of the front and rear ends of the steel frame.

[0010] The steel frame includes crossbeams, columns, diagonal braces, longitudinal beams, and reinforcing plates.

[0011] Both the columns and the longitudinal beams are made of I-beams.

[0012] The advantages and positive effects of this utility model are as follows: By adopting a structure that sets up a pipe lifting space on a railcar, it achieves the purpose of fixed-site segmented lifting and lowering into the trench, and railcar transportation under the trench, which can overcome the limitations of crane lifting sites and reduce lifting operations; at the same time, the use of manual chain hoisting for leveling and assembly improves the accuracy of adjustment operations and reduces disturbance to the installed pipeline, which can effectively improve the installation efficiency and quality of GRP seawater pipelines and reduce operating costs. Furthermore, this utility model has a simple structure, is easy to operate, and is highly practical. By adjusting the dimensions of the columns and beams, it can be used to install GRP seawater pipelines of different specifications. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention;

[0014] Figure 2 for Figure 1 The right view;

[0015] Figure 3 for Figure 1 The left view;

[0016] Figure 4 for Figure 2 Top view.

[0017] In the diagram: 1. Horizontal beam; 2. Lifting plate; 3. Column; 4. Diagonal brace; 5. Longitudinal beam; 6. Roller; 7. Steel track; 8. Straight ladder; 9. Reinforcing plate. Detailed Implementation

[0018] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0019] Please see Figures 1-4A steel-framed railcar for installing socket-type glass fiber seawater pipes. The railcar has a steel frame with a frame structure. The top and bottom are longitudinally connected to form a pipe lifting space. Rollers 6 are provided at the bottom. Lifting plates 2 are provided on both the top and bottom ends. Lifting holes are provided on the lifting plates 2 for installing guide chains.

[0020] The more preferred solution in this embodiment is as follows:

[0021] Straight ladders 8 are provided on both sides of the front and rear ends of the steel frame to facilitate construction personnel to climb to the top for operation.

[0022] The steel frame includes a crossbeam 1, a column 3, a diagonal brace 4, a longitudinal beam 5, and a reinforcing plate 9.

[0023] Both the column 3 and the longitudinal beam 5 are made of I-beams.

[0024] A more detailed description of this embodiment is as follows:

[0025] The aforementioned steel-framed railcar includes multiple columns 3 arranged in rows on the left and right and columns in front and behind. Longitudinal beams 5 are installed at the top and lower middle parts of the columns 3 arranged in rows. The longitudinal beams 5 are welded to the columns 3 to form a "plate-like structure." Diagonal braces 4 are installed within the rectangular frame formed by the plate-like structure and at the angles between the columns 3 and the longitudinal beams 5 to reinforce and stabilize the plate-like structure. The diagonal braces 4 are welded to the longitudinal beams 5 and the columns 3.

[0026] At the top of each of the rows of uprights 3, there is a horizontal beam 1. The horizontal beam 1 is welded to the upper part of the uprights 3 and is used to connect the welded "sheet structure" to form a "frame structure". Diagonal braces 4 are provided at the angle between the uprights 3 and the horizontal beams 1. The diagonal braces 4 are welded to the horizontal beams 1 and the uprights 3.

[0027] A lifting plate 2 is provided at the angle between the top of the column 3 and the crossbeam 1. Lifting holes are provided on the lifting plate 2 at both the front and rear ends. The lifting plate 2 is welded to the column 3 and the crossbeam 1.

[0028] A reinforcing plate 9 is provided on the inner side of the bottom of the two end columns 3. The reinforcing plate 9 is flush with the bottom of the column 3, and a roller structure 6 is provided at the lower end. The reinforcing plate 9 is welded to the column 3 and the roller structure 6.

[0029] How to use this utility model:

[0030] Based on the actual location of the centralized pipeline hoisting and the GRP pipeline laying route, firstly, two steel rails 7 are laid along the pipeline route on the concrete base slab. The steel-framed railcar is then hoisted onto the rails, completing the installation of the steel-framed railcar. Next, at the designated centralized pipeline hoisting and trenching site, a crane is used to hoist the GRP pipeline sections to the middle of the two parallel rails, with supports placed at the bottom. Then, the steel-framed railcar is moved above the GRP pipeline, and using the hoisting platform 2 on the car, along with chain hoists and slings, the GRP pipeline is lifted and leveled. Finally, the steel-framed railcar is used to transport the pipe sections to the designated installation location, and the elevation and level of the GRP pipeline are adjusted by loosening and loosening the chain hoists, completing the pipeline assembly and installation. Repeating the above procedures completes the installation of the GRP pipeline.

[0031] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and these all fall within the protection scope of the present invention.

Claims

1. A steel-framed railcar for installing socket-type glass fiber seawater pipes, characterized in that, The railcar is equipped with a steel frame, which is a frame structure. The top and bottom are longitudinally connected to form a pipe lifting space. Rollers are provided at the bottom, and lifting plates are provided on both the top and bottom ends of the front and rear ends. Lifting holes are provided on the lifting plates.

2. The steel-framed railcar for installing fiberglass seawater pipe socket assemblies according to claim 1, characterized in that, Straight ladders are provided on both sides of the front and rear ends of the steel frame.

3. The steel-framed railcar for installing socket assemblies of fiberglass seawater pipes according to claim 1, characterized in that, The steel frame includes crossbeams, columns, diagonal braces, longitudinal beams, and reinforcing plates.

4. The steel-framed railcar for installing fiberglass seawater pipe socket assemblies according to claim 3, characterized in that, Both the columns and the longitudinal beams are made of I-beams.

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