CN114484072A - Dangerous cargo wharf modular pipeline assembly structure and method - Google Patents
Dangerous cargo wharf modular pipeline assembly structure and method Download PDFInfo
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- CN114484072A CN114484072A CN202210096269.9A CN202210096269A CN114484072A CN 114484072 A CN114484072 A CN 114484072A CN 202210096269 A CN202210096269 A CN 202210096269A CN 114484072 A CN114484072 A CN 114484072A
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- 239000011248 coating agent Substances 0.000 claims description 8
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- 231100001261 hazardous Toxicity 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 239000013056 hazardous product Substances 0.000 claims 7
- 238000010276 construction Methods 0.000 abstract description 25
- 238000009417 prefabrication Methods 0.000 abstract description 10
- 230000000149 penetrating effect Effects 0.000 abstract description 3
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- 230000008569 process Effects 0.000 description 14
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/0243—Laying or reclaiming pipes on land, e.g. above the ground above ground
- F16L1/0246—Laying or reclaiming pipes on land, e.g. above the ground above ground at a certain height off the ground
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/22—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
- F16L3/223—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals each support having one transverse base for supporting the pipes
- F16L3/227—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals each support having one transverse base for supporting the pipes each pipe being supported by a separate element fastened to the base
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a dangerous goods wharf modular pipeline assembly structure and a dangerous goods wharf modular pipeline assembly method. The scheme provided by the invention aims at the short plate part designed in the existing wharf pipeline construction, and utilizes the advantages of small section size of a steel member, light structure, high prefabrication degree, high engineering quality and the like, so that the traditional operation amount of on-site pouring, pipe penetrating, pipe frame welding and pipeline welding is reduced, the number of on-site construction operators is reduced, the construction speed is high, the accident risk of on-site open fire operation is greatly reduced, and the overall safety of a project is improved.
Description
Technical Field
The invention belongs to the technical field of wharfs, and particularly relates to a pipeline assembly scheme for a dangerous wharf.
Background
In recent years, with the idea of "people oriented", people's mind and body health are protected, people's lives are respected, people's safety value culture is realized, people's mind is deepened, and more attention is paid to safety problems. Due to the position of the wharf, once an accident occurs, the wharf often brings great threat to the life safety of field operators and also brings great economic loss. Therefore, the "safety problem" is always a crucial problem in structural design and construction.
The wharfs can be classified into a common wharf and a dangerous goods wharf according to the difference of physical properties and chemical properties of loading and unloading materials. Dangerous goods are generally characterized by flammability, explosiveness, toxicity, pollution and the like, so that the dangerous goods are high in danger. The wharf for the liquid dangerous goods generally adopts a pipeline laying mode, and different material pipelines are arranged above the wharf structure in a layered mode through the support of the pipe frame structure.
At present, the common practice is to cast a concrete pipe frame upright post and a concrete pipe frame beam on the upper part of a wharf in situ, or reserve a pipe frame foundation to install the steel pipe frame upright post, weld a steel pipe frame beam system on the spot, lay process pipelines on the field again, and weld spliced pipelines to form a complete upper pipe frame and pipeline structure. This enables the laying of multiple pipelines.
However, the construction of the pipeline laying scheme is directly carried out on the upper part of the liquid dangerous goods wharf, and in the concrete implementation, the current welding workload of the upper steel pipe frame and the pipeline is very large for the liquid dangerous goods wharf, so three problems are brought:
(1) the field welding amount is large, and the construction speed is low;
(2) in the field pipe penetrating operation, the anticorrosive coating and the heat insulating layer of the pipeline are easy to be locally damaged and peeled off, the local repairing effect on the field is relatively poor, and the durability and the attractiveness are greatly influenced;
(3) the high-altitude operation workload of personnel is large, the safety risk is high, especially to dangerous goods wharf transformation project, the materials in the existing pipeline are difficult to empty, and in addition, workers operate on the spot for a long time, and once the operation is not standard, accidents are easy to occur.
Therefore, how to realize the efficient and high-precision installation and construction of the pipeline on the liquid dangerous goods wharf site is a problem to be solved urgently in the field.
Disclosure of Invention
Aiming at the problems of low construction speed and low safety and reliability of the existing dangerous goods wharf pipeline construction scheme, the invention aims to provide the dangerous goods wharf modular pipeline assembly scheme.
In order to achieve the purpose, the modular pipeline assembly structure for the dangerous goods wharf provided by the invention comprises a plurality of sections of prefabricated pipeline modules, the prefabricated pipeline modules are integrally and directly arranged on the dangerous goods wharf site, and corresponding pipelines in different sections of prefabricated pipeline modules are welded on the dangerous goods wharf site to form through pipelines.
Furthermore, the prefabricated pipeline module comprises a plurality of steel stand columns, a plurality of pipe frame longitudinal beams, a plurality of pipe frame cross beams and a plurality of pipelines; the plurality of pipe frame cross beams are transversely connected with the plurality of steel upright columns, and the plurality of pipe frame longitudinal beams are longitudinally connected with the plurality of steel upright columns to form at least one layer of modular pipe frame; the plurality of pipes are arranged in layers in a modular pipe rack.
Further, still include a plurality of pipe brackets in the prefabricated pipe module, a plurality of pipe brackets set up and form pipeline bearing structure on the pipe support crossbeam in the modularization pipe support.
Furthermore, still include a plurality of dogs among the prefabricated pipe module, the dog sets up on the pipe support crossbeam in the modularization pipe support to distribute in conduit saddle both sides.
Further, still include a plurality of lugs in the prefabricated pipeline module, a plurality of lugs set up in the modularization pipe support on the pipe support longeron of top layer.
Furthermore, an anti-corrosion coating is prefabricated in the plurality of pipelines, and/or a heat insulation coating layer is prefabricated outside the plurality of pipelines.
In order to achieve the purpose, the method for assembling the modular pipes of the dangerous goods wharf, provided by the invention, comprises the following steps:
integrally prefabricating a plurality of sections of the prefabricated pipeline modules;
integrally and directly hoisting a plurality of prefabricated pipeline modules to a dangerous goods wharf site, and distributing the prefabricated pipeline modules according to a designed pipeline route;
and welding corresponding pipelines in the prefabricated pipeline modules which are distributed adjacently on the site of the dangerous goods wharf to form the through pipelines.
Furthermore, in the assembling method, corresponding prefabricated pipelines in adjacent prefabricated pipeline modules are welded on site to complete butt joint and penetration.
Furthermore, the hoisting prefabricated pipeline module penetrates through a lifting lug on the module through a cable to hoist the pipe frame and the pipeline module, and after welding of all pipelines in the hoisting prefabricated pipeline module is completed, the hoisting cable is removed.
Further, the pipeline is subjected to flaw detection according to different proportions according to material properties during welding.
According to the dangerous goods wharf modularized pipeline assembly scheme provided by the example, the existing construction scheme of welding a steel pipe frame beam system on site and laying a process pipeline and welding and assembling a pipeline on site is abandoned, and the dangerous goods wharf is innovatively and rapidly assembled on site through modularized design, so that the rapid construction can be met, the field operation amount can be reduced, and the installation accuracy of a pipe frame and a pipeline can be met; the whole scheme is safe, efficient, energy-saving, environment-friendly, convenient to construct, economical and reasonable in implementation.
This example provides a hazardous articles pier modularization pipeline assembly scheme when concrete application, prefabricate modularization assembled pipe support, pipeline structure based on the steel member, not only reduced the work load of traditional cast in situ, poling, welding pipe support and welded pipe, reduce site operation personnel quantity, the construction speed is fast, simultaneously greatly reduced the accident risk of on-the-spot naked light operation, improved the whole security of project.
The dangerous goods pier modularization pipeline assembly scheme that this example provided need not the on-the-spot poling when concrete application to reduce the on-the-spot restoration work load that anticorrosive coating, heat insulation layer destruction brought that the on-the-spot poling caused, and through control module gross weight, make full use of suitable handling equipment can reach the effect of saving investment, energy-concerving and environment-protective.
The dangerous goods wharf modular pipeline assembly scheme provided by the example has a wide application prospect, can meet the requirements of rapid construction, reduction of field operation amount, and installation precision of pipe frames and pipelines, and meets the requirements of safety, high efficiency, energy conservation, environmental protection, convenient construction, economy and reasonability.
Drawings
The invention is further described below in conjunction with the appended drawings and the detailed description.
FIG. 1 is a schematic overall construction of a modular pipe assembly structure in this example;
fig. 2 is an enlarged schematic structural view of a circled portion in fig. 1.
The reference numbers in the figures mean:
pipe support steel stand 1, pipe support longeron 2, pipe support crossbeam 3, pipeline 4, conduit saddle 5, dog 6, lug 7.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Aiming at the current dangerous goods wharf pipeline construction scheme, the concrete pipe frame upright post and the concrete pipe frame beam are generally poured on the upper part of the wharf in situ, or a pipe frame foundation is reserved for installing the steel pipe frame upright post, a steel pipe frame beam system is welded on site, a scheme of laying a process pipeline on site and welding an assembled pipeline to form a complete upper pipe frame and pipeline structure is reproduced, the scheme provides a dangerous goods wharf modularized pipeline assembly scheme, through innovative modularized design, rapid assembly is directly carried out on the dangerous goods wharf in situ, rapid construction can be met, the field operation amount is reduced, and the pipe frame and pipeline installation precision can be met; the whole scheme is safe, efficient, energy-saving, environment-friendly, convenient to construct, economical and reasonable in implementation.
For this reason, the dangerous goods wharf modular pipeline assembly scheme constructs corresponding pipeline modules with modular structures and performs prefabrication on the modular pipeline modules.
The modularized pipeline module constructed by the scheme is prefabricated in a factory, and based on the machining tools of the prefabricated factory, the modularized pipeline module can be mechanically and automatically prefabricated based on a design drawing, so that the overall precision of the prefabricated module is ensured. Such prefabricated scheme for current scheme based on pier site operation, the wharf district that exists is usually wind big, and air humidity is big, and on-the-spot welding operation all needs manual work in addition, receives the problem of workman's operation skill difference restriction, improves follow-up pipe support, piping erection's efficiency and precision greatly.
Referring to fig. 1, an exemplary embodiment of a prefabricated pipe module of the present disclosure is shown. This prefabricated pipeline module can carry out high-efficient and high-quality transformation to the hazardous articles pier of having built, effectively avoids adopting the problem that current construction scheme exists.
The scheme aims at prefabricated modular pipeline modules, each section of modular pipeline module is directly arranged on the dangerous goods wharf site as a whole, and corresponding pipelines in different sections of prefabricated pipeline modules are welded on the dangerous goods wharf site to form a through pipeline.
As shown in fig. 1, the pipe module in the present solution adopts a modular design of a frame structure, so as to perform rapid prefabrication and rapid and precise assembly on site.
The pipeline module is mainly formed by assembling a plurality of pipe support steel stand columns 1, pipe support longitudinal beams 2, pipe support cross beams 3, pipelines 4, pipe brackets 5, check blocks 6, lifting lugs 7 and the like in a modularized manner. Meanwhile, when the pipeline module is implemented, the pipeline module is prefabricated into a whole based on an assembly structure and is integrally assembled on the site by being hoisted as a whole.
Wherein, mutually support between a plurality of pipe support steel stand 1, pipe support longeron 2 and the pipe support crossbeam 3 and constitute the modularization pipe support, as the modular major structure in order to bear corresponding pipeline 4.
Specifically, a plurality of pipe frame steel upright posts 1 are arranged in two groups in sequence. Accordingly, two pipe frame steel upright columns 1 in each group are transversely connected through at least one pipe frame cross beam 3.
Meanwhile, the pipe frame steel upright columns 1 in each group are longitudinally connected with the corresponding pipe frame steel upright columns 1 in the adjacent group through at least one pipe frame longitudinal beam 2, so that at least one layer of modular pipe frame is formed.
Further, several pipes 4 are arranged in layers on the modular pipe rack on the pipe rack beams 3 in each layer of the structure.
In this pipeline module scheme, to adopting pipe support crossbeam 3's quantity, according to whole modularization pipe support structural performance and required layered structure and deciding. According to the drawing example, two pipe support beams 3 are arranged between two pipe support steel upright columns 1 in each group, wherein the first pipe support beam 3 is connected with the top ends of the two pipe support steel upright columns 1, and the second pipe support beam 3 is connected with the middle lower parts of the two pipe support steel upright columns 1, so that an upper layer and a lower layer of connecting structure are formed, and the stability of a final frame structure is ensured.
In the pipeline module scheme, the number of the pipe frame longitudinal beams 2 is determined according to the structural performance of the whole modularized pipe frame and the required layered structure. According to the figure example, two pipe frame longitudinal beams 2 are arranged between two pipe frame steel upright columns 1 in adjacent groups, wherein the first pipe frame longitudinal beam 2 is connected with the top ends of the two pipe frame steel upright columns 1, and the second pipe frame cross beam 3 is connected to the middle lower parts of the two pipe frame longitudinal beams 2, so that an upper layer and a lower layer of connecting structure are formed, and the stability of a final frame structure is ensured.
In the pipeline module scheme, the number of the pipelines 4 can be determined according to actual requirements, and the rules of the pipelines are also determined according to the actual requirements, and adopt the same specification or different specifications.
The modular pipe rack thus formed can be prefabricated at the factory and completed for inspection.
The modular pipeline module formed based on the scheme is integrally prefabricated in a factory to form an integral modular structure. By way of example, the modular piping module shown in fig. 1 is prefabricated based on design to form a unitary structure.
Meanwhile, the modularized pipeline modules formed by integral prefabrication are integrally and directly hoisted and spliced on the modified wharf site, so that the modularized pipeline assembly of the dangerous goods wharf can be efficiently realized; meanwhile, the integral modular pipeline module is formed by prefabrication, so that the installation precision of the pipe frame and the pipeline can be effectively guaranteed.
The following is an example of the specific implementation of this scheme.
As the main body structure of the whole modularized pipe frame assembly structure, the pipe frame steel upright 1 in the embodiment is preferably installed on a wharf pipe frame upright foundation through bolts or welding, and for the transformation project, the pipe frame steel upright 1 is preferably welded with the existing steel upright.
Moreover, in order to realize the welding of each prefabricated module and the existing pipe frame upright post at the wharf site, the section of the upright post 1 in the integrally prefabricated modular pipeline module needs to correspond to the size of the existing pipe frame upright post at the wharf site, and the spans are the same so as to form a one-to-one corresponding structure, so that the number of welding components at the site is minimum.
Because upper portion pipe support and pipeline load pass through pipe support steel stand 1 and transmit the major structure of load for the lower part, pipe support steel stand 1 in this example needs to satisfy sufficient rigidity requirement.
The pipe frame longitudinal beam 2 in the embodiment is mainly used for forming a steel pipe frame main body structure and is used for arranging an upper pipeline 4.
During the specific setting, the pipe frame longitudinal beam 2 is preferably welded on the two pipe frame steel upright posts 1 which are longitudinally parallel, and is arranged in an upper-lower layered manner.
The specific design of the pipe frame longitudinal beam 2 is not limited here, but by way of example it is made of a corresponding profile steel, which not only ensures strength, but also allows rapid assembly with the pipe frame steel column 1, and thus an efficient and high-quality prefabrication of the entire module.
The pipe frame cross beam 3 in the present example is mainly used for forming a steel pipe frame main body structure, and an upper pipeline 4 is arranged.
When specifically setting up, the preferred welding of pipe support crossbeam 3 is on two pipe support steel stand 1 of horizontal parallel to be upper and lower layering arrangement, and be in the coplanar with pipe support longeron 2, thereby form frame construction with pipe support longeron 2 and pipe support steel stand 1.
The specific design of the pipe support cross member 3 is not limited here, but is formed by, for example, a corresponding profile steel, so that both strength can be ensured and rapid assembly with the pipe support steel upright 1 is possible, and efficient and high-quality prefabrication of the entire module is achieved.
In the whole prefabrication process of the modular pipeline module, the pipe frame steel upright 1, the pipe frame longitudinal beam 2 and the pipe frame cross beam 3 are arranged according to the structure, when the modular pipeline module is specifically assembled, the three can be fixedly connected through welding or bolts, the specific connection mode is not limited, and a stable frame structure can be formed.
The pipeline 4 is used as another main structure of the modularized pipeline assembly structure, is mainly used for transporting liquid materials after penetrating through, can be composed of pipelines with different pipe diameters and different material specifications, and when the modularized pipeline assembly structure is specifically arranged, a plurality of pipelines 4 are sequentially arranged on the pipe frame cross beam 3.
The pipelines 4 in the modules in the embodiment are all installed, detected and corroded and coated by heat insulating layers in factories, and corresponding pipelines in different modules are welded on site after being hoisted and installed on site to form a through pipeline.
Specifically, each pipeline 4 is provided with an anticorrosive coating, and a heat-insulating coating is arranged outside each pipeline 4, so that the prefabrication in a factory is completed.
In the process of integrally prefabricating the modular pipeline module, laying the processed pipeline 4 on a modular pipe frame formed by matching pipe frame steel upright posts 1, pipe frame longitudinal beams 2 and pipe frame cross beams 3 according to the setting requirement; and is limited by the pipe bracket 5 and the stop block 6.
The length of each pipeline is not limited, and is determined according to the length of the modular pipe frame structure.
The pipe bracket 5 in this example is used for supporting and fixing the pipeline 4, and is arranged in cooperation with the pipeline 4, so that a more stable pipeline supporting and fixing structure is formed for the pipeline 4.
When the pipe bracket is specifically arranged, the pipe bracket 5 is preferably arranged on the end part of the pipe frame cross beam 3 in a welding mode, and the specific shape of the pipe bracket can be matched with the size of the pipeline 4 for arrangement.
The pipe bracket 5 is provided with an arc-shaped groove matched with the outer side surface of the pipeline 4 on the supporting surface and has a smooth surface so as to ensure that the pipe bracket is attached to the pipeline and simultaneously satisfies the longitudinal extension of the pipeline in the service life.
The stop blocks 6 are positioned on the pipe frame cross beams 3 on two sides of the pipe support 5 to play a limiting role, and the pipe 4 is fixed on the pipe frame structure by using the stop blocks, so that the positions of all the pipes 4 are ensured not to move in the hoisting process, and the safety and reliability of dangerous goods in the transportation process are improved.
When specifically setting up, dog 6 adopts and keeps off the bank structure and realize, can set up according to the size of conduit saddle 5, preferably sets up on pipe support crossbeam 3 through the welded mode.
The lifting lug 7 is mainly used for lifting the whole module, and the lifting lug 7 in the embodiment has good bearing capacity and stability, is not easy to deform and has strong corrosion resistance.
When specifically setting up, the lug 7 is preferred to be set up in the top of pipe support stand top layer pipe support longeron 2 through the welded mode, and the convenient handling to whole module.
In practical application, the lifting lugs 7 need to be arranged according to the size and weight of the modules, so that the uniform stress of the modular assembly type pipe frame and the pipeline structure in the lifting process is ensured.
According to the dangerous goods wharf modular pipeline assembly scheme formed in the way, when the dangerous goods wharf is assembled on site, firstly, a plurality of sections of prefabricated pipeline modules are prefabricated.
Each section of prefabricated pipeline module is integrally prefabricated based on the above constitution scheme; when a plurality of sections of prefabricated pipeline modules are integrally prefabricated, in order to realize the welding of each prefabricated module and the existing pipe frame stand column on site, the stand column section of the integrally prefabricated module needs to correspond to the size of the existing pipe frame stand column on a wharf, and the spans are the same so as to form a one-to-one corresponding structure, so that the number of welding components on site is minimum.
And then, integrally and directly hoisting a plurality of prefabricated pipeline modules to the dangerous goods wharf site, and distributing the prefabricated pipeline modules according to the designed pipeline route.
Finally, corresponding pipelines in the prefabricated pipeline modules distributed adjacently are welded on the site of the dangerous goods wharf to form the through pipelines.
When the prefabricated pipeline modules are hoisted in the assembling process, corresponding hoisting equipment is selected and matched according to the overall structure size of the integrally prefabricated multiple sections of the prefabricated pipeline modules.
On the basis, the cable penetrates through the lifting lugs on the integrally prefabricated pipeline modules, the pipe frame and the pipeline modules are integrally lifted, horizontally lifted to a wharf construction site, butted with existing pipe frame stand columns on the wharf site, and spliced with the adjacent prefabricated pipeline modules. And the whole module is ensured to be horizontal during horizontal lifting, so that the pipeline is prevented from sliding off.
After the assembled module is in butt joint with the existing pipe frame upright post on the wharf site, the hoisting equipment still needs to keep the hoisting state, and after all the module steel upright posts in the module are in welding butt joint with the existing upright posts on the wharf, the hoisting cable rope is removed, so that the safety and stability of the whole butt joint and assembly process are ensured.
In the assembly process, the prefabricated pipelines in the adjacent prefabricated modules need to be welded on site, so that when each section of prefabricated pipeline module is integrally prefabricated, the caliber, the number and the wall thickness of the pipeline and the corresponding position of the pipeline on the pipe frame need to be in one-to-one correspondence, and the deviation is strictly limited so as to be conveniently and smoothly butted and communicated on site.
When the pipeline is welded in the assembly process, 100% flaw detection is carried out according to different proportions of material properties, so that the welding quality is ensured.
The following illustrates a construction process of the dangerous goods wharf modular pipeline assembly scheme in specific application, and the whole construction process can be performed according to the following steps:
(1) determining parameters such as the caliber, the number, the wall thickness and the like of the pipeline according to the current specification and the use requirement;
(2) determining the pipeline arrangement, the number of layers of pipe frames and the load of each layer of pipeline according to the specification and the number of the pipelines;
(3) determining the arrangement size of the pipe frame according to the caliber, the number and the wall thickness grade of the pipeline, such as the width of the pipe frame, the interlayer spacing of the pipe frame, the spacing among a plurality of pipe frames and the like;
(4) calculating the structural bearing capacity, the internal force and the like according to the current specification of the pipe frame structure, and determining the section dimensions of the pipe frame steel upright posts 1, the pipe frame longitudinal beams 2, the pipe frame cross beams 3 and the like;
(5) carrying out lifting calculation according to the current specification, and determining the specification, the arrangement position and the like of the lifting lug 7;
(6) prefabricating a pipe frame steel upright 1, a pipe frame longitudinal beam 2 and a pipe frame cross beam 3;
(7) prefabricating a pipeline 4;
(8) the pipelines 4 are fixed on the main pipe frame structure in a layered manner through pipe brackets 5 and stop blocks 6;
(9) welding the lifting lugs 7 on the pipe frame longitudinal beams 2 at the tops of the pipe frame steel upright posts;
(10) and hoisting and mounting on site, and welding the pipe frame and the pipeline structure of the two different modules to form an integral structure.
The modular assembly formula pipe support, pipeline structure that this example provided, make full use of steel member cross-sectional dimension is little, the structure is light, advantages such as prefabricated degree is high, engineering quality height have not only reduced traditional cast in situ, poling, welding pipe support and welded tube's work load, reduce site operation personnel quantity, construction speed is fast, simultaneously greatly reduced the accident risk of on-the-spot naked light operation, improved the whole security of project.
In addition, the field repair workload caused by the damage of an anticorrosive coating and a heat insulating layer due to the field pipe penetration is reduced, and the effects of investment saving, energy saving and environmental protection can be achieved by fully utilizing proper hoisting equipment through controlling the total weight of the module.
Meanwhile, the modularized assembled pipe frame and the pipeline structure have wide application prospect, and with the improvement of the national requirements on safety, energy conservation, environmental protection and resource conservation, the requirements on prefabrication and standardization of port land construction are higher and higher, and the improvement of the traditional design and construction assembly, standardization and safety performance is urgent.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The assembly structure of the modular pipelines of the dangerous goods wharf is characterized by comprising a plurality of sections of prefabricated pipeline modules, wherein the plurality of sections of prefabricated pipeline modules are directly arranged on the dangerous goods wharf site as a whole, and corresponding pipelines in different sections of prefabricated pipeline modules are welded on the dangerous goods wharf site to form a through pipeline.
2. The hazardous material wharf modular pipe assembly structure of claim 1, wherein the prefabricated pipe modules comprise a plurality of steel uprights, a plurality of pipe frame longitudinal beams, a plurality of pipe frame cross beams, and a plurality of pipes; the plurality of pipe frame cross beams are transversely connected with the plurality of steel upright columns, and the plurality of pipe frame longitudinal beams are longitudinally connected with the plurality of steel upright columns to form at least one layer of modular pipe frame; the plurality of pipes are arranged in layers in a modular pipe rack.
3. The hazardous material terminal modular pipe assembly structure of claim 2, wherein the prefabricated pipe modules further comprise a plurality of pipe brackets, and the pipe brackets are arranged on pipe frame cross beams in the modular pipe frames to form a pipe support structure.
4. The assembly structure of the hazardous material terminal modular pipe according to claim 2, wherein the prefabricated pipe modules further comprise a plurality of stoppers, the stoppers are arranged on the pipe frame cross beams in the modular pipe frame and distributed on two sides of the pipe bracket.
5. The assembly structure of the hazardous material terminal modular pipeline according to claim 2, wherein the prefabricated pipeline module further comprises a plurality of lifting lugs, and the lifting lugs are arranged on the pipe frame longitudinal beam at the top layer in the modular pipe frame.
6. The hazardous goods terminal modular pipe assembly structure of claim 1, wherein the plurality of pipes are pre-coated with an anti-corrosion coating and/or the plurality of pipes are pre-coated with a heat insulating coating.
7. The assembly method of the modular pipeline of the dangerous goods wharf is characterized by comprising the following steps:
integrally prefabricating a plurality of lengths of the prefabricated pipe module of any one of claims 1-6;
integrally and directly hoisting a plurality of prefabricated pipeline modules to a dangerous goods wharf site, and distributing the prefabricated pipeline modules according to a designed pipeline route;
and welding corresponding pipelines in the prefabricated pipeline modules which are distributed adjacently on the site of the dangerous goods wharf to form the through pipelines.
8. The method for assembling the modular pipes of the hazardous material terminal of claim 7, wherein the corresponding prefabricated pipes of the adjacent prefabricated pipe modules are welded on site to complete the butt-joint penetration.
9. The assembly method of the modular pipes for the hazardous material wharf according to claim 7, wherein when the prefabricated pipe modules are hoisted integrally, the pipe frame and the pipe modules are hoisted by the cables passing through the lifting lugs on the modules, and after all pipes in the prefabricated pipe modules are welded, the hoisting cables are removed.
10. The method for assembling the modular pipes of the hazardous material terminal of claim 7, wherein the pipes are welded and tested according to different proportions of material properties.
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| CN202210096269.9A CN114484072A (en) | 2022-01-26 | 2022-01-26 | Dangerous cargo wharf modular pipeline assembly structure and method |
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| CN202210096269.9A CN114484072A (en) | 2022-01-26 | 2022-01-26 | Dangerous cargo wharf modular pipeline assembly structure and method |
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