CN115320804A - Ship engine room section construction method - Google Patents
Ship engine room section construction method Download PDFInfo
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- CN115320804A CN115320804A CN202110510751.8A CN202110510751A CN115320804A CN 115320804 A CN115320804 A CN 115320804A CN 202110510751 A CN202110510751 A CN 202110510751A CN 115320804 A CN115320804 A CN 115320804A
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- 238000010276 construction Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 9
- 210000000038 chest Anatomy 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
Abstract
The invention discloses a ship engine room subsection construction method in the technical field of ship subsection construction, which comprises the following steps: step S1, determining rib profile line positions and plate seam line positions in three views of the cabin section; step S2, dividing the cabin section into an upper section and a lower section along a plate seam line; s3, determining rib structures of the upper segment and the lower segment; s4, completing the construction of the upper subsection and the lower subsection; and S5, taking the upper partial section as a reference section and the lower partial section as a hoisting section, and completing the construction of the cabin section. The method has the advantages that the reverse integral construction mode of the cabin subsection is cut into two layers of reverse middle assembly to be a large construction mode, the upper subsection and the lower subsection are assembled and folded into the cabin subsection in the large assembly, the three-dimensional operation height, the hoisting difficulty and the construction process difficulty of the cabin subsection are reduced, the production efficiency is improved, the operation period of the jig frame is shortened, and the control of the precision size in the construction process is facilitated.
Description
Technical Field
The invention relates to the technical field of ship section construction, in particular to a ship cabin section construction method.
Background
The nacelle section is a section in the construction of the ship section. In the process flow of sectional construction of the cabin, factors such as high frame height of the hoisting rib, large quantity of scattered loading of the outer plate longitudinal frame, large construction operation difficulty, low production efficiency, unfavorable safety due to combination of reverse three-dimensional operation and scaffold erection, incapability of meeting the precision requirement due to conventional control technical means and the like influence the construction period of the production line.
Disclosure of Invention
In view of the above, the present invention provides a ship cabin segment construction method to solve the technical problem of long cabin segment construction period.
The technical scheme adopted by the invention is as follows:
a ship cabin segment building method comprises the following steps:
step S1, determining a rib profile line position and a plate seam line position in three views of a cabin section;
step S2, dividing the cabin section into an upper section and a lower section along the plate seam line;
step S3, determining rib structures of the upper segment and the lower segment;
s4, completing the construction of the upper subsection and the lower subsection;
and S5, taking the upper section as a reference section and the lower section as a hoisting section to finish the construction of the cabin section.
Further, the plate suture in step S2 is FXG plate suture + EXF plate suture.
Further, the step S3 includes:
s31, manufacturing a rib frame structure according to the position of the rib molded line in the step S1;
step S32, the rib cage structure in step S31 is divided into upper and lower rib structures along the plate suture lines in step S2.
Furthermore, the lower rib structure is spliced by adopting auxiliary materials in a small assembling stage.
Further, the step S4 includes:
step S411, drawing a plane position line of the upper segment on the ground and manufacturing a rigid jig frame;
step S412, hoisting and inserting the rib structure in the step S3 into the rib profile position corresponding to the rigid jig frame, and welding and fixing;
step S413, applying an outer panel;
in steps S411 to S413, a total station is combined to control the head-to-tail coplanarity, the height position and the alignment degree of the segment center lines, so as to ensure the assembly and hoisting precision in the upper segment.
Further, the step S4 includes:
step S421, marking out a plane position line of the lower segment on the ground and manufacturing a rigid jig frame;
step S422, hoisting and inserting the rib structure in the step S3 into the rib profile position corresponding to the rigid jig frame, and welding and fixing;
step S423, applying an outer panel;
in steps S411 to S413, a total station is combined to control the head-to-tail coplanarity, the height position and the alignment degree of the segment center lines, so as to ensure the assembly and hoisting precision in the lower segment.
Further, the step S5 includes: and controlling the head-to-tail coplanarity, the height position and the alignment degree of the center lines of the sections by using a total station to ensure the large assembly hoisting accuracy of the cabin sections.
Further, the rib-shaped lines in step S1 include FR24+100, FR28, FR30, FR34, FR38, FR42, and FR43+164.
Further, the plate stitches in step S1 include GXH plate stitches, FXG plate stitches + EXF plate stitches, and DXE plate stitches.
The invention has the beneficial effects that:
the invention cuts the reverse state integral construction mode of the cabin section into two layers of reverse state middle assembly to make a large construction mode, and realizes the assembly and closure of the upper section and the lower section into the cabin section in the large assembly, so that the three-dimensional operation height of the cabin section is 7.7M and is reduced to two construction operation schemes of 3M and 4.7M, the three-dimensional height hoisting difficulty is greatly reduced, the auxiliary material cost can be reduced by temporarily fixing and reinforcing the rib frame hoisting, the construction process technical difficulty is reduced, the production efficiency is rapidly improved, the accuracy of cabin section data is ensured by applying a precision three-dimensional control technology, and the labor load of operating personnel and the safety production with attention are fully ensured.
The invention is beneficial to ensuring that the guidelines of large assembly and strong assembly in the engine room section meet the requirements of product construction technology by controlling the structural precision and the key point in a data size mode, and reduces the field repair operation.
Drawings
FIG. 1 is a side view of a nacelle section of the present invention;
FIG. 2 is a top view of a nacelle section of the present invention;
FIG. 3 is a cross-sectional view of a nacelle section of the present invention;
FIG. 4 is a cross-sectional view of a lower section of the present invention;
FIG. 5 is a cross-sectional view of the upper section of the present invention;
FIG. 6 is a schematic structural view of the rib cage of FR43+164, FR42, FR38, FR34, FR30, FR28 and FR24+ 100;
FIG. 7 shows the upper and lower rib structures of FR43+164, FR42, FR38, FR34, FR30, FR28 and FR24+ 100;
FIG. 8 is a diagram of FR42 rib cage splicing;
FIG. 9 is a diagram of the splicing of FR30 rib cage
FIG. 10 is a graph of upper segment structure accuracy control;
FIG. 11 is a diagram of the accuracy control of the lower segment structure;
FIG. 12 is a diagram of control of upper and lower segment final assembly accuracy;
in the figure:
10-cabin segmentation;
20-upper section;
30-a lower section;
40-auxiliary materials;
50-segment centerline;
60-a total station;
70-a tripod.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Embodiment, as shown in fig. 1 to 12, a ship cabin segment building method includes the steps of:
step S1, as shown in FIGS. 1-3, determining rib profile line positions and plate seam line positions in three views of a cabin segment 10;
step S2, as shown in fig. 3-5, dividing the nacelle section 10 into an upper section 20 and a lower section 30 along a panel seam;
step S3, as shown in fig. 1, 3, 6 and 7, determining the rib structures of the upper segment 20 and the lower segment 30;
step S4, shown in fig. 8-11, completing the construction of the upper section 20 and the lower section 30;
step S5, as shown in fig. 12, the upper section 20 is a reference section, and the lower section 30 is a hoisting section, and the construction of the nacelle section 10 is completed.
The method has the advantages that the reverse state integral construction mode of the engine room subsection 10 is sectioned into two layers of reverse state assembly to be a large construction mode, the upper subsection 20 and the lower subsection 30 are assembled and folded into the engine room subsection 10 in the large assembly, the three-dimensional operation height, the hoisting difficulty and the construction process difficulty of the engine room subsection 10 are reduced, the production efficiency is improved, the running period of the jig frame is shortened, and the control of the precision size in the construction process is facilitated.
In a specific embodiment, as shown in fig. 1 to 12, a ship cabin segment building method includes the following steps:
step S1, as shown in FIGS. 1-3, determining rib profile line positions and plate seam line positions in three views of a cabin segment 10; wherein the three views comprise a side view of the nacelle section 10, a plan view of the nacelle section 10 and a cross-sectional view of the nacelle section 10; the rib line includes FR24+100, FR28, FR30, FR34, FR38, FR42, and FR43+164; plate sutures include GXH plate sutures, FXG plate sutures + EXF plate sutures, and DXE plate sutures.
Step S2, as shown in fig. 3-5, divides the entire nacelle section 10 along FXG plate stitch + EXF plate stitch into an upper section 20 and a lower section 30, wherein the upper section 20 and the lower section 30 have a height of 4.7m and 3m, respectively.
Step S3, as shown in fig. 1, 3, 6 and 7, determining the rib structures of the upper segment 20 and the lower segment 30; the method specifically comprises the following steps:
step S31, as shown in fig. 1, fig. 3 and fig. 6, manufacturing each rib frame structure according to each rib-line position in step S1, wherein the rib frames at the rib-line positions FR43+164, FR42, FR38, FR34, FR30, FR28 and FR24+100 are sequentially arranged from left to right in fig. 6;
step S32, as shown in fig. 3, fig. 6 and fig. 7, dividing each rib frame structure manufactured in step S31 into an upper rib structure and a lower rib structure along the FXG plate suture line and the EXF plate suture line in step S2, and obtaining each rib part corresponding to the upper segment 20 and the lower segment 30; in fig. 7, the rib structures at the FR43+164, FR42, FR38, FR34, FR30, FR28 and FR24+100 rib line positions of the upper segment 20 and the lower segment 30 are shown from left to right.
Step S4, shown in fig. 10 and 11, completing the construction of the upper section 20 and the lower section 30; the method specifically comprises the following steps:
step S411, as shown in FIG. 10, marking out the plane position line of the upper segment 20 on the ground and making a rigid jig frame;
step S412, hoisting and inserting the rib structure in the step S3 into the rib profile position corresponding to the rigid jig frame, and welding and fixing;
step S413, applying an outer panel;
in steps S411 to S413, the total station 60 is combined to control the head-to-tail coplanarity, the height position and the alignment degree of the segment center line 50, so as to ensure the assembly and hoisting precision in the upper segment 20.
Step S421, as shown in FIG. 11, marking out the plane position line of the lower subsection 30 on the ground and manufacturing a rigid jig frame;
step S422, hoisting and inserting the rib structure in the step S3 into the rib profile position corresponding to the rigid jig frame, and welding and fixing;
step S423, applying an outer panel;
in steps S411 to S413, the total station 60 is combined to control the head-to-tail coplanarity, the height position, and the alignment of the segment center line 50, so as to ensure the assembly and hoisting precision in the lower segment 30.
Step S5, as shown in fig. 12, the upper partial section 20 is a reference section, the lower partial section 30 is a hoisting folded section, and the total station 60 is used to control the head and stern coplanarity, the height position and the section center line 50 alignment degree, so as to ensure the large assembly hoisting accuracy of the cabin section 10.
Further, in step S32, as shown in fig. 8 and 9, the lower rib structure is reinforced by the auxiliary material 40 to be spliced in the small erection stage to realize the overall frame shape, and after the full width dimension of the precision is ensured, the assembly positioning welding is performed, so as to facilitate the middle assembly hoisting positioning of the lower segment 30.
Further, total station 60 is provided on tripod 70.
The technical requirements of the application are as follows:
(1) The sectioning of the cabin segment 10 in a three-side view is required to be close to the production and construction requirements, the precision of the projection unfolding structure is 100%, and the blanking and cutting precision error of each part is controlled to be-2-0 mm.
(2) The cabin subsection 10 structure is dissected into upper segment 20 and lower segment 30 on the process design, and the rib frame of lower segment 30 adopts supplementary material 40 to strengthen and carries out interim fixing at the little assemblage stage concatenation of part, relates to the requirement of the full width control accuracy of rib position number within +/-2 mm, and the whole roughness of rib frame is +/-5 mm.
(3) The upper section 20 and the lower section 30 are hoisted, assembled and welded on a jig frame in the middle assembling stage, and the integral levelness of the sections is controlled within +/-4 mm, the coplanarity of the fore-and-aft end surfaces is controlled within +/-3 mm, and the integral full width of the sections is controlled within +/-5 mm.
(4) The cabin sections 10 are hoisted and folded at two layers in a large assembly stage, the accuracy of the coplanarity of the bow and the stern of the assembly and the folding is controlled within +/-3 mm, and the layer height between the sections is controlled within +/-5 mm.
According to the technical process specification requirement of ship construction, CAD software is used for designing and cutting the cabin into two layers of segmented structures in a sectional side view, a cross section view and a top view, and the precision control technology is combined in the construction process.
Compared with the prior art, the application has at least the following beneficial effects
1. The method breaks through the optimization and improvement of the traditional process technology on the process design of the cabin structure, the reverse state overall construction mode is innovatively cut into two layers of reverse state assembly to be a large construction mode, the upper layer and the lower layer of the large assembly are folded into cabin sections, the production efficiency is effectively improved, the running period of the jig frame is shortened, the assembly and welding difficulty of a constructor in the whole construction process flow is reduced, and meanwhile, the control of the precision size in the construction process is facilitated.
2. This application falls to two kinds of construction operation schemes of 3M and 4.7M with cabin segmentation's integral construction three-dimensional operation height 7.7M, three-dimensional height hoist and mount degree of difficulty greatly reduced on construction technology, the interim fixed enhancement of rib frame hoist and mount has reduced the auxiliary material cost, the reduction of construction technology degree of difficulty is favorable to production efficiency to improve fast (lifting by crane equipment, assembly, electric welding, the operation of polishing), the accuracy of cabin segmentation data is guaranteed to application precision three-dimensional control technique, and make operating personnel labour load and the safe production of emphasizing obtain abundant guarantee effect. On the other hand, the invention is beneficial to ensuring that the assembly in the cabin section is large and the assembly is strong, the structural precision control key meets the requirement of the product construction technology in a data size mode, and the field repair operation is reduced.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A ship cabin segment building method is characterized by comprising the following steps:
step S1, determining rib profile line positions and plate seam line positions in three views of an engine room section (10);
step S2, dividing the cabin section (10) into an upper section (20) and a lower section (30) along the plate seam;
step S3, determining rib structures of the upper section (20) and the lower section (30);
s4, completing the construction of the upper section (20) and the lower section (30);
and S5, taking the upper section (20) as a reference section and the lower section (30) as a hoisting section to finish the construction of the cabin section (10).
2. The marine engine room section building method according to claim 1, wherein the plate stitches in the step S2 are FXG plate stitches + EXF plate stitches.
3. The ship nacelle segment building method according to claim 1, wherein the step S3 includes:
s31, manufacturing a rib frame structure according to the position of the rib molded line in the step S1;
step S32, the rib cage structure in step S31 is divided into upper and lower rib structures along the plate suture lines in step S2.
4. A method for sectional construction of a marine nacelle according to claim 3, characterised in that the lower rib structures are spliced using auxiliary material (40) during the minor erection phase.
5. The ship cabin segment building method according to claim 1, wherein the step S4 comprises:
step S411, marking out a plane position line of the upper segment (20) on the ground and manufacturing a rigid jig frame;
step S412, hoisting and inserting the rib structure in the step S3 into the rib profile position corresponding to the rigid jig frame, and welding and fixing;
step S413, applying an outer panel;
in the steps S411 to S413, the total station (60) is combined to control the coplanarity, the height position and the alignment degree of the segment center line (50) so as to ensure the assembling and hoisting precision in the upper segment (20).
6. The ship cabin segment building method according to claim 1, wherein the step S4 comprises:
step S421, marking out a plane position line of the lower subsection (30) on the ground and manufacturing a rigid jig frame;
step S422, hoisting and inserting the rib structure in the step S3 into the rib profile position corresponding to the rigid jig frame, and welding and fixing;
step S423, applying an outer panel;
in the steps S411 to S413, the total station (60) is combined to control the coplanarity, the height position and the alignment degree of the segment center line (50) so as to ensure the assembling and hoisting precision in the lower segment (30).
7. The ship cabin segment building method according to claim 1, wherein the step S5 comprises: and controlling the coplanarity, height position and alignment degree of the section center line (50) of the bow and the stern by using a total station (60) by taking the upper section (20) as a reference section and the lower section (30) as a hoisting folding section so as to ensure the large-assembly hoisting accuracy of the cabin section (10).
8. The segment building method for the marine engine room according to claim 1, wherein the rib line in the step S1 includes FR24+100, FR28, FR30, FR34, FR38, FR42 and FR43+164.
9. The marine vessel nacelle segment building method as claimed in claim 1, wherein the plate stitches in step S1 include GXH plate stitches, FXG plate stitches + EXF plate stitches, and DXE plate stitches.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110510751.8A CN115320804A (en) | 2021-05-11 | 2021-05-11 | Ship engine room section construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110510751.8A CN115320804A (en) | 2021-05-11 | 2021-05-11 | Ship engine room section construction method |
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| CN109895945A (en) * | 2019-04-02 | 2019-06-18 | 上海外高桥造船有限公司 | A kind of pre-assembled method of bulkhead in length and breadth of ore in sand form board block |
| CN110254623A (en) * | 2019-06-28 | 2019-09-20 | 中船黄埔文冲船舶有限公司 | A kind of production method of submerged body segmentation |
| CN112193387A (en) * | 2020-10-14 | 2021-01-08 | 上海外高桥造船有限公司 | Method for building, turning over and hoisting ship bottom head and tail sections |
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2021
- 2021-05-11 CN CN202110510751.8A patent/CN115320804A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101596925A (en) * | 2009-07-23 | 2009-12-09 | 上海江南长兴重工有限责任公司 | The prepackage technology of bow lateral thruster on body section |
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