CN114055001A - Pipeline welding construction method in closed space - Google Patents
Pipeline welding construction method in closed space Download PDFInfo
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- CN114055001A CN114055001A CN202111498078.7A CN202111498078A CN114055001A CN 114055001 A CN114055001 A CN 114055001A CN 202111498078 A CN202111498078 A CN 202111498078A CN 114055001 A CN114055001 A CN 114055001A
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- pipeline
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- welding position
- point welding
- distance
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- 238000003466 welding Methods 0.000 title claims abstract description 77
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000000779 smoke Substances 0.000 claims abstract description 39
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 11
- 239000003517 fume Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000004590 computer program Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/027—Making tubes with soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a pipeline welding construction method in a closed space, which comprises the following steps: determining the fixed-point welding position of the pipeline in the pipe gallery; set up the induced-draft fan on the ground of pipeline fixed point welding position top to confirm whether to install the honeycomb duct according to the interval between induced-draft fan and the pipeline fixed point welding position: when the distance between the smoke exhaust machine and the fixed-point welding position of the pipeline is larger than the preset distance, installing a guide pipe to exhaust smoke; when the distance between the smoke exhaust machine and the fixed-point welding position of the pipeline is smaller than or equal to the preset distance, the guide pipe does not need to be installed. The invention not only makes full use of the pipeline transportation and installation device, but also hardly increases redundant materials and construction equipment; the problem of traditional underground pipe gallery limited space exhaust fume has been changed, does not receive the influence of other external factors, both can guarantee construction quality, further guarantee construction operation personnel self safety again. The invention can use various pipeline transportation devices, beveling machines and automatic welding technologies of metal pipelines at the present stage, and can obviously improve the construction efficiency.
Description
Technical Field
The invention relates to the technical field of underground pipe galleries, in particular to a pipeline welding construction method in a closed space.
Background
At present, city utility tunnel, most underground pipe gallery inner space are most more narrow, and the utility tunnel owner piping lane length of building at present is not less than 1000 meters basically. It is unfavorable especially to the practitioner of welding metal pipeline in the limited construction space, and metal pipeline can produce a large amount of smog when the welding in the corridor, but when comparatively airtight space, causes the danger that welding operation personnel stifled easily. All need all arrange many fans in piping lane when piping lane metal pipeline welds in the past and discharge fume, and the fan that discharges fume need remove along with pipeline interface welded position, and the fan can influence operating personnel when being close to the welding position or wind-force when too big and carry out welding operation and welding effect (forbidden when argon arc welding), and the fan is too far away from the welding position and discharges fume the effect not good.
In order to guarantee that personnel normally construct and normal circulation of air in the piping lane in the underground pipe gallery in the past, need arrange many fans in this limited space of underground pipe gallery, when the long distance operation in the corridor interior exhaust smoke problem not only influence pipeline welded operating personnel, still can influence other operating personnel in same space, consequently there are a lot of insufficiencies in this kind of construction method. .
Disclosure of Invention
In view of the above, the invention provides a pipeline welding construction method in a closed space, and aims to solve the problem of smoke exhaust of a limited space of an underground pipe gallery when a metal pipeline is welded in the underground pipe gallery, and how to effectively solve the problem that welding equipment and a power supply frequently move in the pipe gallery.
In one aspect, the invention provides a pipeline welding construction method in a closed space, which comprises the following steps:
determining the fixed-point welding position of the pipeline in the pipe gallery;
set up the induced-draft fan on the ground of pipeline fixed point welding position top to according to whether the interval between induced-draft fan and the pipeline fixed point welding position confirms to install the honeycomb duct:
when the distance between the smoke exhaust machine and the fixed-point welding position of the pipeline is larger than the preset distance, installing a guide pipe to exhaust smoke;
when the distance between the smoke exhaust machine and the fixed-point welding position of the pipeline is smaller than or equal to the preset distance, the guide pipe does not need to be installed.
Further, when confirming the pipeline fixed point welding position in the piping lane, will pipeline fixed point welding position sets up in underground pipe gallery hoist and mount mouth or the piping lane under the mouth of fleing.
Further, when the distance between the fixed-point welding positions of the smoke exhaust fan and the pipeline is larger than the preset distance, the guide pipe is arranged in the pipe gallery hoisting opening or the escape opening in a penetrating mode when the guide pipe is installed.
Further, when the distance between the fixed-point welding positions of the smoke exhaust fan and the pipeline is smaller than or equal to the preset distance, the angle of the smoke exhaust fan only needs to be adjusted when the guide pipe is not required to be installed.
Further, the pipeline transportation device in the pipeline gallery is used as temporary support and transportation of the pipeline when the pipeline in the pipeline gallery is subjected to fixed-point welding.
Compared with the prior art, the pipeline transportation and installation device has the beneficial effects that the pipeline transportation and installation device is fully utilized, and redundant materials and construction equipment are hardly added.
The invention solves the problem of smoke exhaust in the limited space of the traditional underground pipe gallery, is not influenced by other external factors, and can ensure the construction quality and further ensure the safety of construction operators.
The invention can use various pipeline transportation devices, beveling machines and automatic welding technologies of metal pipelines at the present stage, and can obviously improve the construction efficiency.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart of a pipeline welding construction method in a closed space according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of smoke evacuation of a first spot welding according to an embodiment of the present invention
Fig. 3 is a schematic diagram of smoke exhaust from the second spot welding according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the embodiment provides a pipeline welding construction method in a closed space, including:
determining the fixed-point welding position of the pipeline in the pipe gallery;
set up the induced-draft fan on the ground of pipeline fixed point welding position top to according to whether the interval between induced-draft fan and the pipeline fixed point welding position confirms to install the honeycomb duct:
when the distance between the smoke exhaust machine and the fixed-point welding position of the pipeline is larger than the preset distance, installing a guide pipe to exhaust smoke;
when the distance between the smoke exhaust machine and the fixed-point welding position of the pipeline is smaller than or equal to the preset distance, the guide pipe does not need to be installed.
With reference to fig. 2 and 3, specifically, when determining the pipeline fixed-point welding position in the pipe gallery, the pipeline fixed-point welding position is arranged in the pipe gallery right below the underground pipe gallery lifting port or the escape port.
Particularly, when the interval between fume exhauster and the pipeline fixed point welding position is greater than the preset interval, during the installation honeycomb duct, wear to establish the honeycomb duct in piping lane hoist and mount mouth or the mouth of fleing.
Particularly, when the interval between the fixed point welding position of the smoke exhaust fan and the pipeline is smaller than or equal to the preset interval, the angle of the smoke exhaust fan only needs to be adjusted when the guide pipe is not needed to be installed.
Specifically, the in-lane pipe transport device is utilized as a temporary support for the pipe and transport of the pipe when spot welding the pipe in the lane.
When the embodiment is specifically implemented, the underground pipe gallery pipeline is welded at fixed points, smoke is discharged in a centralized manner by using the smoke exhaust fan, and the working principle of the smoke exhaust fan refers to the working principle of a kitchen range hood; the smoke exhaust fan is fixedly arranged on the upper ground such as a pipe gallery lifting port or an escape port under a point, smoke is exhausted to a construction open area through the smoke exhaust fan, the 'flow guide pipe' can be determined according to the distance between the smoke exhaust fan and the fixed-point welding position of a pipeline, when the distance between the smoke exhaust fan and the fixed-point welding position is too far or the height is too high, fixed-point centralized smoke exhaust can be realized through the flow guide pipe, and when the distance between the smoke exhaust fan and the fixed-point welding position is closer or the height is not high, the fixed-point centralized smoke exhaust effect can be achieved only by adjusting the angle of the smoke exhaust fan;
the pipeline transportation device in the available gallery is used as the temporary support of the pipeline and the transportation of the pipeline during fixed-point welding, the pipeline transportation device is used for meeting the space required by automatic welding more easily, and thus the automatic welding technology of the metal pipeline can be used to the maximum extent. Pipeline welding utilizes the pipeline beveling machine to accomplish pipeline butt joint and welding demand, utilizes metal pipeline automatic weld machine to improve metal pipeline welding efficiency, selects suitable pipeline beveling machine and pipeline automatic weld machine can be used in the both ends of same pipe section and begin the operation simultaneously, can further improve the efficiency of construction, and fixed point welding technique's advantage mainly reflects in the straightway operation.
It can be seen that the above embodiment adopts a fixed-point welding centralized smoke exhaust method to change the traditional limited space smoke exhaust problem. Simultaneously make full use of pipeline transportation device when the pipeline is to mouthful welding, the pipeline transportation technique is very mature in the present corridor, can satisfy the work of quick adjustment pipeline to mouthful. The method is not only used when the metal pipeline is welded, but also suitable for welding the nonmetal pipeline, can realize the quick welding of the pipeline by utilizing the automatic welding technology of the metal pipeline, does not need to frequently move welding equipment and a power supply, and does not influence the operation of other constructors of the underground pipe gallery. Therefore, the construction concept of people oriented construction in engineering is fully reflected, the life health and safety of welding operation personnel are ensured, and the pipeline construction efficiency is also improved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (5)
1. A pipeline welding construction method in a closed space is characterized by comprising the following steps:
determining the fixed-point welding position of the pipeline in the pipe gallery;
set up the induced-draft fan on the ground of pipeline fixed point welding position top to according to whether the interval between induced-draft fan and the pipeline fixed point welding position confirms to install the honeycomb duct:
when the distance between the smoke exhaust machine and the fixed-point welding position of the pipeline is larger than the preset distance, installing a guide pipe to exhaust smoke;
when the distance between the smoke exhaust machine and the fixed-point welding position of the pipeline is smaller than or equal to the preset distance, the guide pipe does not need to be installed.
2. A pipe welding construction method in a closed space according to claim 1,
when confirming the pipeline fixed point welding position in the piping lane, will pipeline fixed point welding position sets up in underground pipe gallery hoist and mount mouth or the piping lane under the mouth of fleing.
3. The pipe welding construction method in a closed space according to claim 2,
when the distance between the smoke exhaust machine and the fixed-point welding position of the pipeline is larger than the preset distance, the guide pipe is arranged in the pipe gallery hoisting opening or the escape opening in a penetrating mode when the guide pipe is installed.
4. A pipe welding construction method in a closed space according to claim 1,
when the distance between the smoke exhaust fan and the fixed-point welding position of the pipeline is smaller than or equal to the preset distance, the angle of the smoke exhaust fan only needs to be adjusted when the guide pipe is not needed to be installed.
5. A pipe welding construction method in a closed space according to claim 1,
the pipeline transportation device in the pipeline is used as temporary support of the pipeline and transportation of the pipeline when the pipeline in the pipeline is welded at fixed points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111498078.7A CN114055001A (en) | 2021-12-09 | 2021-12-09 | Pipeline welding construction method in closed space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111498078.7A CN114055001A (en) | 2021-12-09 | 2021-12-09 | Pipeline welding construction method in closed space |
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| Publication Number | Publication Date |
|---|---|
| CN114055001A true CN114055001A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111498078.7A Pending CN114055001A (en) | 2021-12-09 | 2021-12-09 | Pipeline welding construction method in closed space |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06292970A (en) * | 1993-04-12 | 1994-10-21 | Nippon Steel Weld Prod & Eng Co Ltd | Method and device for wet-collecting weld fumes |
| JP2000153363A (en) * | 1998-11-17 | 2000-06-06 | Japan Air Curtain Corp | Locally exhausting device |
| KR20130102808A (en) * | 2012-03-08 | 2013-09-23 | 현대중공업 주식회사 | Welding fume exhaustor |
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2021
- 2021-12-09 CN CN202111498078.7A patent/CN114055001A/en active Pending
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Application publication date: 20220218 |
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