CN113878884B - Method for improving pipeline welding efficiency - Google Patents

Method for improving pipeline welding efficiency Download PDF

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Publication number
CN113878884B
CN113878884B CN202111001544.6A CN202111001544A CN113878884B CN 113878884 B CN113878884 B CN 113878884B CN 202111001544 A CN202111001544 A CN 202111001544A CN 113878884 B CN113878884 B CN 113878884B
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China
Prior art keywords
pipes
pipe
welding
welding machine
milling cutter
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CN202111001544.6A
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Chinese (zh)
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CN113878884A (en
Inventor
李忠明
冯岩岩
梁洲
王晓
杨永杰
姜铭
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China Construction Seventh Engineering Bureau Installation Engineering Co Ltd
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China Construction Seventh Engineering Bureau Installation Engineering Co Ltd
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Priority to CN202111001544.6A priority Critical patent/CN113878884B/en
Publication of CN113878884A publication Critical patent/CN113878884A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/02Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224Mechanical pre-treatments, e.g. reshaping with removal of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5221Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04Polymers of ethylene
    • B29K2023/06PE, i.e. polyethylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • B29L2023/22Tubes or pipes, i.e. rigid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The invention provides a method for improving the welding efficiency of a pipeline, which solves the problem that in the whole hot-melt welding process, due to the influence of the construction characteristics of the welding process of PE pipelines, partial machines and operators are in an idle state in the process of heat absorption and natural cooling of the pipelines, and the construction efficiency is influenced. According to the method, the entering field sectional stacking of the PE pipe is guided, on the basis of an original welding machine tool, a plurality of butt welding machine frames are added, so that a heating plate and a milling cutter can be recycled under the condition of no shutdown and idling, the cross connection of welding procedures is achieved, workers and machines reach the saturation state of the construction efficacy as much as possible, the welding efficiency of the PE pipe is improved, and the welding progress of the PE pipe is accelerated.

Description

Method for improving pipeline welding efficiency
Technical Field
The invention relates to the technical field of pipeline construction, in particular to a method for improving pipeline welding efficiency.
Background
In pipeline engineering, PE materials are often adopted for pipelines such as water supply pipelines, fuel gas pipelines, communication pipelines and the like. Since the standard length of the pipes is typically 6m or 9m, the connection between the pipes is hot-melt welded. The hot-melt welding process comprises the steps of fixing a pipeline to be welded through a pipeline welding pipe frame, adjusting the axis of the pipeline to be consistent, then flattening the pipe orifice by a pipeline milling cutter to ensure that the butt joint gap of the two pipe orifices is uniform in size, finally heating the end faces of the two pipe orifices by a heating plate with the temperature of about 210 ℃, setting heat absorption time according to the wall thickness of the pipeline, taking out a heating cake after the end faces of the pipe orifices absorb heat and melt, rapidly pressurizing to enable the two pipe orifices to be welded, keeping the pressure until the pipe orifice welding seam is naturally cooled for about 10 minutes, and dragging the pipe orifice forward to weld the next welding seam. The welding process of a pipe orifice takes about 15 minutes.
Wherein, when the pipe orifice absorbs heat and heats up, the milling cutter is in an idle state; in the natural cooling process of the pipe orifice, the milling cutter, the heating plate and the operator are all in an idle state. In the whole hot-melt welding process, due to the influence of the construction characteristics of the welding process of the PE pipeline, partial machines and operators are in an idle state in the process of heat absorption and natural cooling of the pipeline, and the construction efficiency is influenced.
Disclosure of Invention
In order to solve the problem that in the background art, in the whole hot-melt welding process, due to the influence of the construction characteristics of the welding process of PE pipelines, partial machines and operators are in an idle state in the process of heat absorption and natural cooling of the pipelines, and the construction efficiency is influenced, the invention provides a method for improving the pipeline welding efficiency.
The technical scheme of the invention is as follows: a method for improving the welding efficiency of a pipeline comprises the following construction steps:
after the pipeline groove is excavated, calculating the number of PE pipes with required standard length according to the length of the pipeline groove, dividing the pipeline groove into a plurality of sections of pipeline grooves with equal length, and stacking the PE pipes on the road surface beside the groove in the middle of each section of pipeline groove to form a PE pipe storage yard;
step two, adopting two butt welder frames to form a welding production line of two PE pipes when the PE pipes in the PE pipe storage yard are subjected to hot-melt welding;
step three, taking out PE pipes from a PE pipe storage yard, and respectively fixing two PE pipes which are oppositely arranged on each butt welding machine frame;
step four, starting a generator to supply power for a heating plate and a milling cutter, wherein the heating plate and the milling cutter are arranged between two butt welding machine frames, starting the heating plate to preheat and heat, and simultaneously adopting the milling cutter to carry out edge-filing construction procedures on pipe orifices of two PE pipes on a first butt welding machine frame;
step five, after the edge-filing construction process of the pipe orifices of the two PE pipes on the welding machine frame is completed, taking out a milling cutter of the milling cutter machine, carrying out the edge-filing construction process of the pipe orifices of the PE pipes on the welding machine frame on the second machine frame, and sequentially carrying out the edge-filing construction process according to the steps until the edge-filing construction process of the pipe orifices of the PE pipes on the whole welding machine frame is completed;
step six, when the heating plate is heated to the welding temperature required by the PE pipes while the step five is carried out, the heating plate sequentially carries out hot-melt welding on the pipe orifices of the two PE pipes on the first butt welding machine frame and the pipe orifices of the two PE pipes on the second butt welding machine frame after the edge-filing construction process is finished under the condition of not stopping the machine, and the hot-melt welding process of the PE pipes on the whole butt welding machine frame is finished;
step seven, obtaining a primary treatment pipe after the welding seam between two PE pipes subjected to hot-melt welding is naturally cooled, filling a roller device below the primary treatment pipe, pulling the primary treatment pipe and the roller device to the side road surface of a pipeline groove (1) of a to-be-constructed area, taking down the roller device, and then placing the primary treatment pipe into the pipeline groove (1) of the to-be-constructed area;
when the primary treatment pipe is pulled, the primary treatment pipes on the two butt welding machine frames (3) are pulled in opposite directions;
step eight, installing PE pipes on the empty butt welding machine frame again, and repeating the steps four to seven until the hot-melt welding process of all PE pipes in the PE pipe storage yard is completed;
step nine, performing hot-melt welding after edge-filing on the primary treatment pipe in the pipe groove to finish the local folding treatment procedure of the pipe in the groove;
and step ten, repeating the second step to the step nine to finish all the folding treatment procedures of the pipelines in the ditch.
Preferably, the number ratio of the heating plates to the milling cutter is 1:1, the configuration quantity ratio of the milling cutter machine to the butt welding machine frame is at least 1:2.
preferably, the number of the heating plates is n, and if n is greater than or equal to n, the adjacent n+1 primary treatment pipes in the pipe groove are subjected to edge-filing and then hot-melt welding simultaneously in step nine, so that the folding treatment procedure of the pipe in the groove is completed.
Preferably, the number of the heating plates and the milling cutter is one.
Preferably, the axis of PE pipes piled in the PE pipe yard is parallel to the length direction of the pipe groove.
The invention has the advantages that: according to the method, the entering field sectional stacking of the PE pipe is guided, on the basis of an original welding machine tool, a plurality of butt welding machine frames are added, so that a heating plate and a milling cutter can be recycled under the condition of no shutdown and idling, the cross connection of welding procedures is achieved, workers and machines reach the saturation state of the construction efficacy as much as possible, the welding efficiency of the PE pipe is improved, and the welding progress of the PE pipe is accelerated.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the pipe yard and post-weld towing direction of example 1;
FIG. 2 is a plan view showing the pipe welding operation in example 1;
in the figure, 1, a pipeline groove, 2, PE pipes, 3, a butt welding machine frame, 4, a roller device, 5, a PE pipe storage yard, 6, a heating plate, 7, a milling cutter, 8 and a generator.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
Example 1: a method for improving the welding efficiency of a pipeline comprises the following construction steps,
step one, after the pipeline groove 1 is excavated, calculating the number of PE pipes 2 with required standard length according to the length of the pipeline groove 1, dividing the pipeline groove 1 into multiple sections of equal length pipe grooves, and then stacking the PE pipes 2 on the road surface beside the groove in the middle of each section of pipe groove to form a PE pipe storage yard 5, as shown in fig. 1.
In the second step, when the PE pipes 2 in a certain PE pipe storage yard 5 are hot-welded, as shown in fig. 2, two butt welding machine frames 3 are used to form a welding production line for the two PE pipes 2.
And thirdly, taking out the PE pipes 2 from the PE pipe storage yard 5, and respectively fixing two PE pipes 2 which are oppositely arranged on each butt welding machine frame 3.
And step four, starting a generator 8 to supply power for the heating plate 6 and the milling cutter 7, starting the heating plate 6 to preheat and heat, and simultaneously adopting the milling cutter 7 to carry out edge-filing construction procedures on the pipe orifices of the two PE pipes 2 on the first welding machine frame 3. Wherein, the configuration quantity proportion of the heating plate 6 and the milling cutter 7 is 1:1, the arrangement quantity ratio of the milling cutter 7 to the butt welding machine frame 3 is 1:2 to improve turnover utilization efficiency of the heating plate 6 and the milling cutter 7, and further improve pipeline welding efficiency.
And fifthly, after the edge-filing construction process of the pipe orifices of the two PE pipes 2 on the welding machine frame 3 is completed, taking out the milling cutter of the milling cutter machine 7, and carrying out the edge-filing construction process of the pipe orifices of the PE pipes 2 on the welding machine frame 3 on the second welding machine frame 3 until the edge-filing construction process of the pipe orifices of the PE pipes 2 on the whole welding machine frame 3 is completed.
Step six, while carrying out the step five, after the heating plate 6 is heated to the welding temperature required by the PE pipes 2, the heating plate 6 carries out hot-melt welding on the pipe orifices of the two PE pipes 2 on the first butt welding machine frame 3 and the pipe orifices of the two PE pipes 2 on the second butt welding machine frame 3 which have completed the edge-filing construction procedure in sequence under the condition of no shutdown until the hot-melt welding procedure of all PE pipes 2 on the butt welding machine frame 3 is completed.
And seventh, obtaining a primary treatment pipe after the welding seam between the two PE pipes 2 subjected to hot-melt welding is naturally cooled, filling a roller device below the primary treatment pipe, taking the primary treatment pipe off a butt welding machine frame 3, then pulling the primary treatment pipe and the roller device to the road surface beside a groove of a pipeline groove 1 of a to-be-constructed area, taking the roller device off, and then placing the primary treatment pipe into the pipeline groove 1 of the to-be-constructed area.
And step eight, installing the PE pipe 2 on the empty butt welding machine frame 3 again, and repeating the steps four to seven until the hot-melt welding process of all PE pipes 2 in the PE pipe storage yard 5 is completed.
And step nine, performing hot-melt welding after edge-filing on the primary treatment pipe in the pipe groove 1 to finish the local folding treatment procedure of the pipe in the groove.
And step ten, transporting the butt welding machine frame 3, the heating plate 6, the milling cutter 7 and the generator 8 to the next PE pipe stock yard 5 through vehicles, and repeating the steps two to nine to finish all the folding treatment procedures of the pipelines in the ditch.
Note that: (1) The roller device in the seventh step comprises a shaft rod and two rollers rotatably arranged on the shaft rod, and when the roller device is used, the primary treatment pipe is lapped on the shaft rod.
(2) The heating plate 6 and the milling cutter 7 are arranged between the two butt welding machine frames 3, so that when the heating plate 6 and the milling cutter 7 work, constructors stand between the two butt welding machine frames 3, and can carry out edge-filing construction and hot-melting welding on the PE pipe 2 on the butt welding machine frames 3 through turning actions, thereby facilitating construction.
(3) When the primary treatment pipe is pulled, the primary treatment pipes on the two butt welding machine frames 3 are pulled in opposite directions, so that the pulling distance of the primary treatment pipes is reduced.
(3) The axis of PE pipes 2 piled in the PE pipe stock yard 5 is parallel to the length direction of the pipeline groove 1.
(4) The specific operation method of the milling cutter 7 when the edge of the port of the PE pipe 2 is blocked is as follows, firstly, a power switch of the milling cutter 7 is turned on, then the two PE pipes 2 are folded, and appropriate pressure is applied to the PE pipes 2 until continuous cutting chips appear at the two ends of the two PE pipes 2 (the thickness of the cutting chips is 0.5-10 mm, the thickness of the cutting chips can be adjusted by adjusting the height of the milling cutter blade), the pressure is removed for a little while, then a movable frame on the butt welder frame 3 is retracted, and the power of the milling cutter 7 is turned off. When the milling cutter is taken out, the two pipe ends are closed, the alignment condition of the two ends of the two PE pipes 2 is checked, and the milling cutter can be taken out after the conditions are met.
(5) During hot-melt welding, the port of the PE pipe 2 can generate outward flanging under the action of pressure, and the flanging at the port of the PE pipe 2 after hot-melt welding is required to be subjected to edging treatment in the later period.
(6) The heating plate 6 and the milling cutter 7 are powered by a generator 8, the generator 8 in the embodiment is a gasoline engine generator, and the heating plate 6, the milling cutter 7 and the generator 8 can be transported by a vehicle.
The method guides the entering field sectional stacking of PE pipes, and on the basis of the original welding machine, the welding machine frame 3 is additionally arranged, so that the cross connection of the welding procedures can be realized according to the welding procedures and the operation steps. The method ensures that workers and machines reach the saturation state of the construction efficacy as much as possible, thereby improving the welding efficiency of PE pipes and accelerating the welding progress of PE pipes.
Example 2: a method for improving the welding efficiency of a pipeline comprises the following construction steps,
step one, after the pipeline groove 1 is excavated, calculating the number of PE pipes 2 with required standard length according to the length of the pipeline groove 1, and then stacking the PE pipes 2 on the side road surface of the groove along the length direction of the pipeline groove 1 to form a PE pipe storage yard 5.
And step two, adopting four butt welder racks 3 to form a welding production line of four PE pipes 2 when the PE pipes 2 in the PE pipe storage yard 5 are subjected to hot-melt welding.
And thirdly, taking out the PE pipes 2 from the PE pipe storage yard 5, and respectively fixing two PE pipes 2 which are oppositely arranged on each butt welding machine frame 3.
Step four, opening a heating plate 6 to preheat and heat, and simultaneously adopting a milling cutter 7 to carry out edge-filing construction procedures on pipe orifices of two PE pipes 2 on a first butt welding machine frame 3, wherein the configuration quantity ratio of the heating plate 6 to the milling cutter 7 is 1:1, the arrangement quantity ratio of the milling cutter 7 to the butt welding machine frame 3 is 1:4 to further improve the turnover utilization efficiency of the heating plate 6 and the milling cutter 7.
Step five, after the edge-filing construction process of the pipe orifices of the two PE pipes 2 on the welding machine frame 3 is completed, taking out the milling cutter 7, carrying out the edge-filing construction process of the pipe orifices of the PE pipes 2 on the welding machine frame 3 on the second machine frame, and sequentially carrying out the edge-filing construction process according to the steps until the edge-filing construction process of the pipe orifices of the PE pipes 2 on the whole welding machine frame 3 is completed.
Step six, while carrying out the step five, after the heating plate 6 is heated to the welding temperature required by the PE pipes 2, the heating plate 6 sequentially carries out hot-melt welding on the pipe orifices of the two PE pipes 2 on the first butt welding machine frame 3 and the pipe orifices of the two PE pipes 2 on the second butt welding machine frame 3 after the edge-filing construction process is finished under the condition of no shutdown, and the hot-melt welding process of the PE pipes 2 on all butt welding machine frames 3 is finished. The other steps were the same as in example 1.
Example 3: the method for improving the pipe welding efficiency comprises the steps of carrying out hot-melt welding after edge-filing on three adjacent primary treatment pipes in a pipe groove 1 in a step nine so as to accelerate the completion of the folding treatment process of the pipes in the groove. The other steps were the same as in example 2.
Example 4: a method for improving the pipe welding efficiency comprises the steps of arranging three butt welding machine frames 3, arranging one heating plate 6 and one milling cutter 7, and carrying out the other steps in the same way as in the embodiment 1.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. A method for improving the welding efficiency of a pipeline, which is characterized by comprising the following construction steps:
firstly, after the pipeline groove (1) is excavated, calculating the number of PE pipes (2) with required standard length according to the length of the pipeline groove (1), dividing the pipeline groove (1) into multiple sections of equal length pipe grooves, and then stacking the PE pipes (2) on a road surface beside the groove in the middle of each section of pipe groove to form a PE pipe storage yard (5);
step two, adopting two butt welding machine frames (3) to form a welding production line of two PE pipes (2) when the PE pipes (2) in the PE pipe storage yard (5) are subjected to hot-melt welding;
step three, taking out PE pipes (2) from a PE pipe storage yard (5), and respectively fixing two PE pipes (2) which are oppositely arranged on each butt welding machine frame (3);
step four, starting a generator (8) to supply power for a heating plate (6) and a milling cutter (7), wherein the heating plate (6) and the milling cutter (7) are arranged between two butt welding machine frames (3), the heating plate (6) is opened to preheat and heat, and meanwhile, the milling cutter (7) is adopted to carry out edge-filing construction procedures on pipe orifices of two PE pipes (2) on a first butt welding machine frame (3);
step five, after the edge-filing construction procedure of the pipe orifices of the two PE pipes (2) on the welding machine frame (3) is completed, taking out the milling cutter of the milling cutter machine (7), carrying out the edge-filing construction procedure of the pipe orifices of the PE pipes (2) on the second welding machine frame (3), and sequentially carrying out the edge-filing construction procedure according to the steps until the edge-filing construction procedure of the pipe orifices of the PE pipes (2) on all the welding machine frames (3) is completed;
step six, when the heating plate (6) is heated to the welding temperature required by the PE pipes (2) while the step five is carried out, the heating plate (6) sequentially carries out hot-melt welding on the pipe orifices of the two PE pipes (2) on the first butt welding machine frame (3) and the pipe orifices of the two PE pipes (2) on the second butt welding machine frame (3) after the edge-filing construction process is finished under the condition of not stopping the machine until the hot-melt welding process of the PE pipes (2) on all butt welding machine frames (3) is finished;
step seven, obtaining a primary treatment pipe after the welding seam between two PE pipes (2) subjected to hot-melt welding is naturally cooled, filling a roller device below the primary treatment pipe, pulling the primary treatment pipe and the roller device to the road surface beside a channel of a pipeline channel (1) of a to-be-constructed area, taking down the roller device, and then placing the primary treatment pipe into the pipeline channel (1) of the to-be-constructed area;
when the primary treatment pipe is pulled, the primary treatment pipes on the two butt welding machine frames (3) are pulled in opposite directions;
step eight, installing PE pipes (2) on the empty butt welding machine frame (3) again, and repeating the steps four to seven until the hot-melt welding process of all PE pipes (2) in the PE pipe storage yard (5) is completed;
step nine, performing hot-melt welding after edge-filing on the primary treatment pipe in the pipe groove (1) to finish the local folding treatment procedure of the pipe in the groove;
and step ten, repeating the second step to the step nine to finish all the folding treatment procedures of the pipelines in the ditch.
2. A method of improving the efficiency of fusion of a conduit according to claim 1, wherein: the configuration quantity ratio of the heating plate (6) to the milling cutter (7) is 1:1, the configuration quantity ratio of the milling cutter (7) and the butt welding machine frame (3) is at least 1:2.
3. a method of improving the efficiency of fusion of a conduit as defined in claim 2, wherein: and if the number of the heating plates (6) is n, and if n is greater than or equal to 2, carrying out hot-melt welding after edge-filing on the adjacent n+1 primary treatment pipes in the pipeline groove (1) simultaneously to finish the folding treatment process of the pipeline in the groove.
4. A method of improving the efficiency of fusion of a conduit according to claim 1, wherein: the arrangement quantity of the heating plates (6) and the milling cutter (7) is one.
5. A method of improving the efficiency of fusion of a conduit according to any one of claims 1 to 3, wherein: the axis of PE pipes (2) piled in the PE pipe storage yard (5) is parallel to the length direction of the pipeline groove (1).
CN202111001544.6A 2021-08-30 2021-08-30 Method for improving pipeline welding efficiency Active CN113878884B (en)

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Application Number Priority Date Filing Date Title
CN202111001544.6A CN113878884B (en) 2021-08-30 2021-08-30 Method for improving pipeline welding efficiency

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Application Number Priority Date Filing Date Title
CN202111001544.6A CN113878884B (en) 2021-08-30 2021-08-30 Method for improving pipeline welding efficiency

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CN113878884B true CN113878884B (en) 2023-12-19

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102486246A (en) * 2010-12-06 2012-06-06 上海伙隆实业有限公司 Polyethylene pipeline hot-melt conjunction construction method
CN103737915A (en) * 2013-12-11 2014-04-23 甘肃大禹节水集团股份有限公司 Quick welding process of PE (polyethylene) hot melt pipe fittings
CN210211420U (en) * 2019-05-23 2020-03-31 北京松田程科技有限公司 Integrated butt fusion system of plastic valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102486246A (en) * 2010-12-06 2012-06-06 上海伙隆实业有限公司 Polyethylene pipeline hot-melt conjunction construction method
CN103737915A (en) * 2013-12-11 2014-04-23 甘肃大禹节水集团股份有限公司 Quick welding process of PE (polyethylene) hot melt pipe fittings
CN210211420U (en) * 2019-05-23 2020-03-31 北京松田程科技有限公司 Integrated butt fusion system of plastic valve

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