CN109128561A - A kind of installation method of steamer pipeline - Google Patents
A kind of installation method of steamer pipeline Download PDFInfo
- Publication number
- CN109128561A CN109128561A CN201811279867.XA CN201811279867A CN109128561A CN 109128561 A CN109128561 A CN 109128561A CN 201811279867 A CN201811279867 A CN 201811279867A CN 109128561 A CN109128561 A CN 109128561A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- welding
- installation method
- steamer
- weld seam
- 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.)
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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
-
- 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
- B23K37/003—Cooling means
Abstract
The invention belongs to shipbuilding technical fields, disclose a kind of installation method of steamer pipeline.The installation method of the steamer pipeline include: pipeline inner wall it is armor coated；Pipeline is welded on outside plate, cooling liquid is passed through into pipeline, to control the maximum heatproof that the inner wall temperature of pipeline in the welding process is less than protective layer.The present invention utilizes and is passed through cooling liquid into pipeline; to control the maximum heatproof that the inner wall temperature of pipeline in the welding process is less than protective layer; protective layer to be effectively ensured in pipeline is not damaged; reduce subsequent coating cost; increase construction efficiency; construction period is shortened, solves the problems, such as that existing pipeline not can be effectively controlled inner wall temperature.
Description
Technical field
The present invention relates to shipbuilding technical field more particularly to a kind of installation methods of steamer pipeline.
Background technique
In shipbuilding industry, in order to reduce the corrosion of pipeline, preservation paint is added generally in pipeline or using stainless
The pipeline of steel material, the former anti-corrosion effect is undesirable, and the anti-corrosion period is not grown, although the latter has a preferable anti-corrosion effect, but at
This is higher.
With the development of marine equipment industry and anti-corrosion material, liner PE coated pipe has started gradually to be applied to shipbuilding
Field, not only anti-corrosion effect is good for this pipeline, but also cost is relatively low, in ship domain increasingly by everybody welcome.But
When pipeline is welded and fixed, how by control pipeline inner wall temperature to avoid PE coating by breakage be in this field one
A great difficult problem, this seriously affects the construction efficiency of steamer.
It would therefore be highly desirable to need to provide a kind of installation method of Novel steamship pipeline to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of installation methods of steamer pipeline, can be effectively controlled with solving existing pipeline not
The problem of inner wall temperature.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of installation method of steamer pipeline, comprising:
It is armor coated in the inner wall of pipeline；
Pipeline is welded on outside plate, cooling liquid is passed through into pipeline, to control the inner wall of pipeline in the welding process
Temperature is less than the maximum heatproof of protective layer.
Preferably, the outer cover of pipeline is equipped with casing, casing is welded on outside plate.
Preferably, inlet and outlet are arranged at the both ends of pipeline, water is injected to water inlet, and from water outlet stream
Out.
Preferably, the height of water inlet is lower than the height of water outlet.
Preferably, casing and outside plate are multi-layer multi-pass welding, weld seam is formed in the junction of casing and outside plate after welding.
Preferably, per pass weld seam is all made of dislocation discontinuous welding or the mode of symmetrical discontinuous welding is formed.
Preferably, being both needed to after preceding one of weld seam is cooled to preset temperature per rear one of weld seam, then welded.
Preferably, the two sides to casing and outside plate are welded respectively, and welds and complete in the side of casing and outside plate
Afterwards, then to other side it welds.
Preferably, the speed of welding of casing and outside plate is made to be higher than pre-set velocity.
Preferably, carrying out carrying out flaw detection to the weld seam that welding is formed, and to there are the weld seams of welding defect to carry out repair welding.
Beneficial effects of the present invention:
The present invention is less than guarantor using cooling liquid is passed through into pipeline, to control the inner wall temperature of pipeline in the welding process
The maximum heatproof of sheath reduces subsequent coating cost, increases so that the protective layer being effectively ensured in pipeline is not damaged
Construction efficiency shortens construction period, solves the problems, such as that existing pipeline not can be effectively controlled inner wall temperature.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the Pipe installing provided by the invention on steamer；
Fig. 2 is schematic diagram when weld seam uses symmetrical discontinuous welding.
In figure:
1, pipeline；2, outside plate；3, casing；
11, water inlet；12, water outlet；21, weld seam；
41, blind plate；42, flange；43, sealing ring；44, connecting tube；45, bolt；46, nut.
(1)-(8) are welding procedure.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, pipeline 1 is arranged in the bulkhead of steamer, 1 outer cover of pipeline is equipped with casing 3, and casing 3 passes through outside plate 2
It is connect with bulkhead, outside plate 2 and casing 3 weld.It is armor coated (preferably PE coating) in the inner wall of pipeline 1, lead into pipeline 1
Enter cooling liquid (preferably water), to control the maximum heatproof that the inner wall temperature of pipeline 1 in the welding process is less than protective layer, this
The maximum heatproof of PE coating is 70 DEG C in invention.When being connected with cooling liquid in pipeline 1, it is ensured that weld the heat transfer of generation to
It is cooling that construction efficiency so faster can be improved when in pipeline 1, shorten construction period and reduces the cost of subsequent artefacts' coating.
Specifically, the both ends of pipeline 1 are respectively equipped with blind plate 41 and flange 42, and blind plate 41 is connected with band internal thread and connects
Pipe 44, flange 42, which is equipped with, to be connected with externally threaded bolt 45, connecting tube 44 and bolt 45 in 1 internal screw thread of pipeline, bolt 45
It is fixed by nut 44 outside flange 42, both ends of pipeline 1 are sealed with this.For improve sealing effect, blind plate 41 with
It is equipped with sealing ring 43 between pipeline 1, while being equipped with sealing ring 43 between flange 42 and between flange and pipeline 1.
Specifically, the top of blind plate 41 is equipped with water outlet 12, and the lower section of flange 42 is equipped with water inlet 11, by water from water inlet
11 are passed through in pipeline 1, and flow out through water outlet 12, so may make the mobility of water flow more preferable, have good heat transfer effect.
Specifically, casing 3 and outside plate 2 are multi-layer multi-pass welding, are formed and are welded in the junction of casing 3 and outside plate 2 after welding
Seam 21, can so be such that casing 3 welds with outside plate 2 stronger.
Specifically, per pass weld seam 21 is all made of dislocation discontinuous welding or the mode of symmetrical discontinuous welding is formed, preferably such as Fig. 2 institute
The symmetrical discontinuous welding shown, while downward welding in the vertical position being forbidden to connect, by using the weld seam 13 that above-mentioned welding manner is formed, can preferably control
Welding temperature processed will not it is excessively high and weld caused by deformation quantity it is smaller.
Specifically, as shown in Fig. 2, according to the number of segment of the diameter of different casings 3 selection welding, as the weld seam in Fig. 2A is
Four sections of weld seams form, and the weld seam in Fig. 2 B is eight sections of weld seams compositions, and the welding manner using symmetrical discontinuous welding makes produced by welding
Shrinkage stress be it is symmetrical, can achieve the effect cancelled out each other, it can greatly reduce the deflection of welding position.This
Outside, multistage weld seam is not only symmetrically welded in welding, but also after the completion of welding, and it is also mutual for being formed by weld seam direction
Symmetrically, the shrinkage stress for so generating welding is smaller.
Specifically, it is both needed to after preceding one of weld seam 21 is cooled to preset temperature, then is welded per rear one of weld seam 21, such as
This can prevent from causing the inner wall temperature of pipeline 1 excessively high when welding and destroying PE coating.
Specifically, casing 3 and the two sides of outside plate 2 are welded respectively, and has been welded in casing 3 and the side of outside plate 2
Cheng Hou, then other side is welded, it can so make casing 3 and the welding of outside plate 2 stronger.It should be noted that in side
After the completion of welding, it need to be cooled to room temperature to weld seam, then the other side is welded.
Specifically, the speed of welding of casing 3 and outside plate 2 is made to be higher than pre-set velocity, pre-set velocity is preferably 130-150mm/
It is too fast and influence painting layer so to can avoid temperature raised rate when welding by min.
Specifically, carrying out flaw detection is carried out to the weld seam 21 that welding is formed, and the weld seam 21 there are welding defect is mended
Weldering.All weld seams are not allow for the welding defects such as stomata, rosin joint, slag inclusion and crackle, when discovery has welding defect in welding process
It is required that after being removed defect using modes such as polishing, carbon planes, then subsequent welding is carried out, to guarantee welding quality.When carbon digs length
When more than 150mm, it should be segmented carbon plane, every section of carbon plane length is lower than 150mm, it is noted that when the inner wall temperature of pipeline 1 is low
It just can be carried out next section of carbon plane operation in 70 DEG C.When to 21 carrying out flaw detection of weld seam, ultrasound detection (UT), Magnetic testing can be used
(MT), liquid penetration examination (PT) or the lossless detection method of X-ray detection (RT).
Specifically, when casing 3 and hull (i.e. outside plate 2) welding after the completion of, carry out pipeline 1 bracket (not shown) with
Ship Structure carries out overlap welding, and the splashing of welding spark influences the PE coating of 1 inner wall of pipeline in order to prevent, must be in the outer of pipeline 1
Wet towel and protective cloth in surface cover.It should be noted that the inside of pipeline 1 must still be full of water at this time, but water does not have to keep stream
Dynamic state.After the completion of all weldings all, after a period of time, discharge water again after pipeline 1 is cooled to room temperature.
The present invention is by way of designing and pouring water and controls welding sequence to control the high temperature that welding generates, and avoids pipeline 1
The PE coating damage of inner wall, ensure that the integrality of pipeline 1, overcome the higher problem of PE coating damage rate before this, and avoid
Subsequent coating process, has saved cost of labor.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For the ordinary skill user of fields, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of installation method of steamer pipeline characterized by comprising
It is armor coated in the inner wall of pipeline (1)；
The pipeline (1) is welded on outside plate (2), is passed through cooling liquid into the pipeline (1), to control in welding process
Described in pipeline (1) inner wall temperature be less than the protective layer maximum heatproof.
2. the installation method of steamer pipeline according to claim 1, which is characterized in that the outside of the pipeline (1) is arranged
Have casing (3), described sleeve pipe (3) is welded on the outside plate (2).
3. the installation method of steamer pipeline according to claim 2, which is characterized in that set at the both ends of the pipeline (1)
Water inlet (11) and water outlet (12) are set, water is injected to the water inlet (11), and is flowed out from the water outlet (12).
4. the installation method of steamer pipeline according to claim 3, which is characterized in that the height ratio of the water inlet (11)
The height of the water outlet (12) is low.
5. the installation method of steamer pipeline according to claim 2, which is characterized in that described sleeve pipe (3) and the outside plate
(2) it is multi-layer multi-pass welding, forms weld seam (21) in the junction of described sleeve pipe (3) and the outside plate (2) after welding.
6. the installation method of steamer pipeline according to claim 5, which is characterized in that weld seam described in per pass (21) is all made of
The mode of dislocation discontinuous welding or symmetrical discontinuous welding is formed.
7. the installation method of steamer pipeline according to claim 5, which is characterized in that equal per the rear weld seam (21) together
Need to be after preceding one of weld seam (21) be cooled to preset temperature, then welded.
8. the installation method of steamer pipeline according to claim 5, which is characterized in that described sleeve pipe (3) and described outer
The two sides of plate (2) are welded respectively, and after the completion of the side of described sleeve pipe (3) and the outside plate (2) is welded, then in addition
Side welding.
9. the installation method of steamer pipeline according to claim 5, which is characterized in that make described sleeve pipe (3) and described outer
The speed of welding of plate (2) is higher than pre-set velocity.
10. the installation method of the steamer pipeline according to any one of claim 5-9, which is characterized in that formed to welding
The weld seam (21) carry out carrying out flaw detection, and to there are the weld seam of welding defect (21) carry out repair welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811279867.XA CN109128561A (en) | 2018-10-30 | 2018-10-30 | A kind of installation method of steamer pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811279867.XA CN109128561A (en) | 2018-10-30 | 2018-10-30 | A kind of installation method of steamer pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109128561A true CN109128561A (en) | 2019-01-04 |
Family
ID=64807007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811279867.XA Pending CN109128561A (en) | 2018-10-30 | 2018-10-30 | A kind of installation method of steamer pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN109128561A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915661A (en) * | 2019-03-29 | 2019-06-21 | 广船国际有限公司 | A kind of double wall through tube installation method and double wall through tube |
| CN111442139A (en) * | 2020-04-17 | 2020-07-24 | 中船黄埔文冲船舶有限公司 | Plastic-coated pipe cabin penetrating piece and welding method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915661A (en) * | 2019-03-29 | 2019-06-21 | 广船国际有限公司 | A kind of double wall through tube installation method and double wall through tube |
| CN111442139A (en) * | 2020-04-17 | 2020-07-24 | 中船黄埔文冲船舶有限公司 | Plastic-coated pipe cabin penetrating piece and welding method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |