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CN116408599A - Pipeline alignment tool - Google Patents

Pipeline alignment tool Download PDF

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Publication number
CN116408599A
CN116408599A CN202310428636.5A CN202310428636A CN116408599A CN 116408599 A CN116408599 A CN 116408599A CN 202310428636 A CN202310428636 A CN 202310428636A CN 116408599 A CN116408599 A CN 116408599A
Authority
CN
China
Prior art keywords
adjusting
pipe fitting
outer frame
pipeline
frame mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310428636.5A
Other languages
Chinese (zh)
Inventor
王原奇
李钢
柳达
曾伟
刘元
刘燕省
宋洋
侯霞
黄秋实
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuchang Shipbuilding Industry Group Co Ltd
Original Assignee
Wuchang Shipbuilding Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuchang Shipbuilding Industry Group Co Ltd filed Critical Wuchang Shipbuilding Industry Group Co Ltd
Priority to CN202310428636.5A priority Critical patent/CN116408599A/en
Publication of CN116408599A publication Critical patent/CN116408599A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/04Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
    • B23K37/053Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0533External pipe alignment clamps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/10Pipe-lines

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

The invention discloses a pipeline alignment tool, which relates to the technical field of pipeline welding and comprises the following components: the outer frame mechanism is arranged on the outer surface of the pipe fitting, and the adjusting mechanism and the aligning mechanism are arranged on the outer frame mechanism; the adjustment mechanism includes: the adjusting nuts are arranged on the outer frame mechanism; the adjusting bolts are respectively arranged in the adjusting nuts and arranged in the outer frame mechanism. The beneficial effects of the invention are as follows: six groups of adjusting bolts on the left side and the right side are adjusted through the adjusting mechanism and the outer frame mechanism, the pipe fitting is pushed, so that the position of the pipe fitting is moved, the fine adjustment effect is achieved, the pipe fitting can not automatically move, the pipe fitting to be centered is multidimensional, the multi-drift diameter is adjusted, when the pipe seam of the pipe is flush, the levelness on the centering locating ruler on the left side and the right side of the outer frame mechanism is consistent with the length dimension of the lower end, the pipe is centered, the structure is simple, the pipe fitting is light and labor-saving, the operation is convenient, and the pipe to be centered can be quickly fixed and adjusted.

Description

Pipeline alignment tool
Technical Field
The invention relates to the technical field of pipeline welding, in particular to a pipeline alignment tool.
Background
When large-caliber pipelines are subjected to pipe butt joint or pipeline and ship cabin passing pipe fitting construction in a cabin construction site, because the construction site is narrow, the pipelines to be centered are required to be temporarily fixed in the construction site or an internal cabin by means of auxiliary tools such as jacks, sleepers and hand hoists, then the pipelines and the pipelines are manually and visually combined with angle squares and a level gauge for centering, the pipelines can be accurately positioned only by measuring and adjusting for many times in the actual operation process, the operation is complex, time and labor are wasted, personnel stay in the internal cabin for a long time, a plurality of potential safety hazards exist, the operation time of the subsequent welding process is prolonged, the production rhythm and production nodes of the pipelines are influenced, if the influence of multiple factors such as machining precision and installation errors is added, then the pipelines meeting the process requirements cannot be machined or are difficult to be machined by a manual or simple tool, and the processed pipelines often have errors of a few millimeters, and waste return is caused.
Therefore, innovation of a pipeline alignment tool suitable for a construction site is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a pipeline alignment tool.
The invention provides a pipeline alignment tool, which comprises: the outer frame mechanism is arranged on the outer surface of the pipe fitting, and the adjusting mechanism and the aligning mechanism are arranged on the outer frame mechanism; the adjustment mechanism includes:
the adjusting nuts are arranged on the outer frame mechanism;
the adjusting bolts are respectively arranged in the adjusting nuts and arranged in the outer frame mechanism, and one end of each adjusting nut is attached to the pipe fitting.
Further, the outer frame mechanism comprises an upper clamp and a lower clamp, and the sections of the upper clamp and the lower clamp are of a semi-arc structure.
Further, the upper clamp and the lower clamp comprise two arc plates, the two arc plates are arranged at intervals, and a plurality of connecting steel plates are arranged between the two sides of the arc plates at equal intervals.
Further, a round hole is formed in the upper end face of the connecting steel plate, the inner diameter of the round hole corresponds to the inner diameter of the adjusting nut, and the adjusting bolt is arranged in the round hole.
Further, the end faces of the upper clamp and the lower clamp are fixedly connected with the lug plates, and the end faces of the lug plates of the upper clamp and the lower clamp are attached to each other.
Further, corresponding through holes are formed in the upper end faces of the plurality of lug plates, fastening bolts are arranged in the through holes and are arranged in the lug plates of the upper clamp and the lower clamp, fastening nuts are connected with the outer surfaces of the fastening bolts in a threaded mode, and one ends of the fastening nuts are attached to the lug plates.
Further, the alignment mechanism is arranged on the front side and the rear side of the lower clamp, the alignment mechanism comprises a base, a through positioning hole is formed in the upper end and the lower end of the base, a fixing hole is formed in one side of the base, and the fixing hole is communicated with the positioning hole.
Further, the alignment mechanism further comprises a centering positioning ruler, the centering positioning ruler is arranged in the positioning hole, and one end of the centering positioning ruler is attached to the pipe fitting.
Further, the inside threaded connection of fixed orifices has fixing bolt, fixing bolt's one end is laminated mutually with centering location chi.
Further, one end of the adjusting bolt is provided with a rotating handle, the other end of the adjusting bolt is provided with a flexible part, and the flexible part is attached to the outer surface of the pipe fitting.
Compared with the prior art, the invention has the following advantages: six groups of adjusting bolts on the left side and the right side are adjusted through the adjusting mechanism and the outer frame mechanism, the pipe fitting is pushed, so that the position of the pipe fitting is moved, the fine adjustment effect is achieved, the pipe fitting can not automatically move, the pipe fitting to be centered is multidimensional, the multi-drift diameter is adjusted, when the pipe seam of the pipe is flush, the levelness on the centering locating ruler on the left side and the right side of the outer frame mechanism is consistent with the length dimension of the lower end, the pipe is centered, the structure is simple, the pipe fitting is light and labor-saving, the operation is convenient, and the pipe to be centered can be quickly fixed and adjusted.
Drawings
Fig. 1 is a schematic diagram of the overall frontal structure of the present invention.
Fig. 2 is a schematic top view of the overall structure of the present invention.
Fig. 3 is a schematic diagram of the overall side view of the present invention.
In the figure:
1. an arc plate;
2. connecting steel plates;
3. ear plates;
4. a base;
5. centering and positioning the ruler;
6. a fixing bolt;
7. an adjusting bolt;
8. an adjusting nut;
9. a fastening bolt;
10. and (5) fastening the nut.
Detailed Description
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the specific embodiments, it will be understood that they are not intended to limit the invention to the described embodiments. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described herein may be implemented by any functional block or arrangement of functions, and any functional block or arrangement of functions may be implemented as a physical entity or a logical entity, or a combination of both.
The present invention will be described in further detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to understand the invention better.
Note that: the examples to be described below are only one specific example, and not as limiting the embodiments of the present invention necessarily to the following specific steps, values, conditions, data, sequences, etc. Those skilled in the art can, upon reading the present specification, make and use the concepts of the invention to construct further embodiments not mentioned in the specification.
When large-caliber pipelines are subjected to pipe butt joint or pipeline and ship cabin passing pipe fitting construction in a cabin construction site, because the construction site is narrow, the pipelines to be centered are required to be temporarily fixed in the construction site or an internal cabin by means of auxiliary tools such as jacks, sleepers and hand hoists, then the pipelines and the pipelines are manually and visually combined with angle squares and a level gauge for centering, the pipelines can be accurately positioned only by measuring and adjusting for many times in the actual operation process, the operation is complex, time and labor are wasted, personnel stay in the internal cabin for a long time, a plurality of potential safety hazards exist, the operation time of the subsequent welding process is prolonged, the production rhythm and production nodes of the pipelines are influenced, if the influence of multiple factors such as machining precision and installation errors is added, then the pipelines meeting the process requirements cannot be machined or are difficult to be machined by a manual or simple tool, and the processed pipelines often have errors of a few millimeters, and waste return is caused.
In order to solve the problems of the alignment tool described above, the present invention provides a pipeline alignment tool, in this embodiment, please refer to fig. 1-3, which includes: the outer frame mechanism is arranged on the outer surface of the pipe fitting, and the adjusting mechanism and the aligning mechanism are arranged on the outer frame mechanism; the adjusting mechanism comprises: a plurality of adjusting nuts 8 arranged on the outer frame mechanism; the adjusting bolts 7 are respectively arranged in the adjusting nuts 8 and in the outer frame mechanism, and one end of each adjusting nut 8 is attached to the pipe fitting;
in the application, the number of the adjusting bolts 7 arranged on the upper side and the lower side of the outer frame mechanism is three or more, one end of each adjusting bolt 7 is attached to a pipe fitting, and then the upper position and the lower position of each adjusting bolt 7 are attached to each other, so that the pipe fitting is pushed, the positions of the pipe fitting are finely adjusted, the machining deviation of a pipeline is corrected, the effect of mounting errors is achieved, after the adjustment is finished, the adjusting bolts 7 are fixed on the pipe fitting, the pipe fitting cannot automatically move, the subsequent machining is convenient, six adjusting bolts 7 are arranged on a line alignment fixture, the butt joint misalignment amount of the pipe fitting is 0, the requirements of welding flaw detection and shooting of various pipelines are met, and the level gauge and the integral fixture are integrated with each other, so that the accuracy of horizontal installation and verticality of each butt joint can be guaranteed;
in other embodiments, the pipe fitting to be centered is arranged at the upper part and the lower side of the inner part of the outer frame mechanism respectively, and the pipe fitting is finely adjusted by adjusting three groups of adjusting bolts 7 at the upper side and the lower side, so that the pipe fitting to be centered is multidimensional and has multiple diameters to be adjusted, and when the pipe joints of the pipe fitting are flush, the levelness of the centering positioning ruler 5 at the front side and the rear side of the tool is consistent with the length dimension of the lower end, and the pipe fitting is centered.
In the embodiment, the outer frame mechanism comprises an upper clamp and a lower clamp, and the cross sections of the upper clamp and the lower clamp are of a semi-arc structure;
in this application, go up anchor clamps and lower anchor clamps overall structure and be half arc can with the shape structure looks adaptation of pipe fitting, make the adjusting bolt 7 on last anchor clamps and the lower anchor clamps support and fix the pipe fitting with correct angle to make things convenient for follow-up adjusting bolt 7 to the fine setting of pipe fitting, make things convenient for the centering.
In the embodiment, the upper clamp and the lower clamp comprise two circular arc plates 1, the two circular arc plates 1 are arranged at intervals from front to back, a plurality of connecting steel plates 2 are equidistantly arranged between two sides of the two circular arc plates 1, a round hole is formed in the upper end face of each connecting steel plate 2, the inner diameter of each round hole corresponds to the inner diameter of an adjusting nut 8, and an adjusting bolt 7 is arranged in each round hole;
in this application, go up anchor clamps and lower anchor clamps and constitute for two circular arc boards 1, form the interval between and connect through connecting steel sheet 2, make anchor clamps and lower anchor clamps more stable, at the in-process of fixed pipe fitting, the condition of slope can not appear wholly, make the in-process of follow-up centering, the error reduces, prevents to appear unexpected condition, and conveniently sets up adjustment mechanism at the middle part of last anchor clamps and lower anchor clamps, is convenient for centering to the pipe fitting.
In the embodiment, the end surfaces of the upper clamp and the lower clamp are fixedly connected with the lug plates 3, the end surfaces of the lug plates 3 of the upper clamp and the lower clamp are attached, the upper end surfaces of the lug plates 3 are provided with corresponding through holes, fastening bolts 9 are arranged in the through holes, the fastening bolts 9 are arranged in the lug plates 3 of the upper clamp and the lower clamp, the outer surfaces of the fastening bolts 9 are in threaded connection with fastening nuts 10, and one ends of the fastening nuts 10 are attached to the lug plates 3;
in this application, every circular arc board 1 tip has welding otic placode 3, and every welding otic placode 3 has all bored the through hole, and the fastening bolt 9 of being convenient for passes the through hole, and fixes on otic placode 3 through fastening nut 10 to constitute a whole after realizing that anchor clamps and lower anchor clamps pass through fastening bolt 9 and fastening nut 10 locking, the frock after the locking is the overall arrangement of a complete symmetry from top to bottom, makes things convenient for follow-up with a pipe fitting centering, or puts into the upper and lower position of symmetry with two pipe fittings in, the pipeline centering to two pipe fittings realizes diversified fixed and regulation.
In the embodiment, the alignment mechanism is arranged at the front side and the rear side of the lower clamp, the alignment mechanism comprises a base 4, the upper end and the lower end of the base 4 are provided with through positioning holes, one side of the base 4 is provided with a fixing hole, and the fixing hole is communicated with the positioning holes;
in this application, lower anchor clamps constitute and go up the anchor clamps similarly, and the difference lies in that lower anchor clamps install the fixing bolt 6 of base 4 and fixed centering location chi 5, and when pipeline seam parallel and level, the levelness on the centering location chi 5 in both sides about the aligning mechanism and the length dimension of lower extreme were unanimous, the pipeline just realized centering, and fixed orifices and locating hole have been seted up to base 4 can put into centering location chi 5 and fixing bolt 6 wherein, make the three integration.
In this embodiment, the alignment mechanism further includes a centering positioning rule 5, the centering positioning rule 5 is disposed inside the positioning hole, and one end of the centering positioning rule 5 is attached to the pipe fitting;
in this application, the staff can measure the position of pipe fitting through centering location chi 5, makes the in-process of the change of pipe fitting, can conveniently know how much of distance, when the levelness on centering location chi 5 on the both sides is unanimous with the length dimension of lower extreme about the aligning mechanism, the pipeline of pipe fitting realizes centering to through a plurality of adjusting bolt 7, can adjust the angle pair pipe that is different, make the position of pipeline finely tune, thereby make centering location chi 5 measuring more accurate.
In the embodiment, a fixing bolt 6 is connected with the inner thread of the fixing hole, and one end of the fixing bolt 6 is attached to the centering positioning ruler 5;
in this application, can fix centering location chi 5, prevent centering location chi 5 in the in-process that need not use, the condition that drops appears.
In the embodiment, one end of the adjusting bolt 7 is provided with a rotating handle, the other end of the adjusting bolt 7 is provided with a flexible part, and the flexible part is attached to the outer surface of the pipe fitting;
in this application, the rotatory handle of the one end of adjusting bolt 7 can make things convenient for the staff to adjust bolt 7 rotatory to the flexible portion that adjusting bolt 7's bottom set up is rubber, can increase frictional force when adjusting bolt 7's bottom and pipe fitting are mutually attached, prevents the condition that skids from appearing between the two, makes fixed effect better.
When the invention is used, firstly, all the adjusting bolts 7 are screwed to the highest point and moved out of the outer frame mechanism, the height of the adjusting bolts 7 on each connecting steel plate 2 is consistent, and meanwhile, the centering positioning ruler 5 is moved downwards, so that the inner space of the upper clamp and the lower clamp is large enough;
then opening the clamp, putting two pipe fittings to be centered into the upper clamp and the lower clamp, closing the upper clamp and the lower clamp, inserting the fastening bolts 9 into the two lug plates 3 of the upper clamp and the lower clamp, and screwing by the fastening nuts 10;
the middle line of the outer frame mechanism is moved to the vicinity of the two pipe joints, the adjusting bolts 7 on the upper clamp and the lower clamp are adjusted, pushing the pipe, so that the position of the pipe is finely adjusted, and the whole tool can be sleeved on the two adjusted pipe fittings as centrally as possible;
and the adjusting bolt 7 on one side of the upper clamp is finely adjusted, so that the position of the pipe fitting is centered, the fixing bolt 6 is locked, the adjusting bolt 7 of the lower clamp is adjusted by the same method, when two sections of pipe joints of the pipeline to be adjusted are flush, the distance between the pipe joints is met, the scales on the positioning ruler are required to be consistent, the fixing bolt 6 is locked, a rubber hammer or a hand is used for shaking the pipeline to determine whether radial looseness exists, if so, the opposite direction adjusting bolt 7 is continuously adjusted until looseness is eliminated, and the centering of the pipeline is completed.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present invention, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. Pipeline alignment frock, its characterized in that includes: the outer frame mechanism is arranged on the outer surface of the pipe fitting, and the adjusting mechanism and the aligning mechanism are arranged on the outer frame mechanism; the adjustment mechanism includes:
a plurality of adjusting nuts (8) arranged on the outer frame mechanism;
the adjusting bolts (7) are respectively arranged in the adjusting nuts (8) and are arranged in the outer frame mechanism, and one end of each adjusting nut (8) is attached to the pipe fitting.
2. The pipeline alignment fixture of claim 1, wherein the outer frame mechanism comprises an upper clamp and a lower clamp, and wherein the cross sections of the upper clamp and the lower clamp are in a semi-arc structure.
3. A pipeline alignment fixture as claimed in claim 2, wherein the upper fixture and the lower fixture each comprise two circular arc plates (1), the two circular arc plates (1) are arranged at intervals in front-back, and a plurality of connecting steel plates (2) are arranged between two sides of the two circular arc plates (1) at equal intervals.
4. A pipeline alignment fixture according to claim 3, wherein the upper end surface of the connecting steel plate (2) is provided with a round hole, the inner diameter of the round hole corresponds to the inner diameter of the adjusting nut (8), and the adjusting bolt (7) is arranged in the round hole.
5. A pipeline alignment fixture as claimed in claim 2, wherein the end surfaces of the upper clamp and the lower clamp are fixedly connected with an ear plate (3), and the end surfaces of the ear plates (3) of the upper clamp and the lower clamp are attached.
6. The pipeline alignment fixture according to claim 5, wherein the upper end surfaces of the plurality of ear plates (3) are provided with corresponding through holes, fastening bolts (9) are arranged in the ear plates (3) of the upper clamp and the lower clamp, the outer surfaces of the fastening bolts (9) are in threaded connection with fastening nuts (10), and one ends of the fastening nuts (10) are attached to the ear plates (3).
7. The pipeline alignment fixture as claimed in claim 2, wherein the alignment mechanism is arranged at the front side and the rear side of the lower clamp, the alignment mechanism comprises a base (4), the upper end and the lower end of the base (4) are provided with through positioning holes, one side of the base (4) is provided with a fixing hole, and the fixing hole is communicated with the positioning holes.
8. A pipeline alignment fixture according to claim 7, wherein the alignment mechanism further comprises a centering positioning ruler (5), the centering positioning ruler (5) is arranged in the positioning hole, and one end of the centering positioning ruler (5) is attached to the pipe fitting.
9. A pipeline alignment fixture according to claim 8, wherein the fixing hole is internally threaded with a fixing bolt (6), and one end of the fixing bolt (6) is attached to the centering positioning ruler (5).
10. A pipeline alignment fixture according to claim 1, wherein one end of the adjusting bolt (7) is provided with a rotating handle, and the other end of the adjusting bolt (7) is provided with a flexible part, and the flexible part is attached to the outer surface of the pipe fitting.
CN202310428636.5A 2023-04-20 2023-04-20 Pipeline alignment tool Pending CN116408599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310428636.5A CN116408599A (en) 2023-04-20 2023-04-20 Pipeline alignment tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310428636.5A CN116408599A (en) 2023-04-20 2023-04-20 Pipeline alignment tool

Publications (1)

Publication Number Publication Date
CN116408599A true CN116408599A (en) 2023-07-11

Family

ID=87052868

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310428636.5A Pending CN116408599A (en) 2023-04-20 2023-04-20 Pipeline alignment tool

Country Status (1)

Country Link
CN (1) CN116408599A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119435833A (en) * 2024-12-05 2025-02-14 武昌船舶重工集团有限公司 Pipeline assembly and installation method of pipeline assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119435833A (en) * 2024-12-05 2025-02-14 武昌船舶重工集团有限公司 Pipeline assembly and installation method of pipeline assembly
CN119435833B (en) * 2024-12-05 2025-10-17 武昌船舶重工集团有限公司 Pipeline assembly and installation method thereof

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