CN113715990A - Double-sided preassembling method for bulkhead guide rail on large container ship and bulkhead - Google Patents
Double-sided preassembling method for bulkhead guide rail on large container ship and bulkhead Download PDFInfo
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- CN113715990A CN113715990A CN202111133494.7A CN202111133494A CN113715990A CN 113715990 A CN113715990 A CN 113715990A CN 202111133494 A CN202111133494 A CN 202111133494A CN 113715990 A CN113715990 A CN 113715990A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000009434 installation Methods 0.000 claims abstract description 25
- 239000003550 marker Substances 0.000 claims description 17
- 238000007689 inspection Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 8
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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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
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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
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/002—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for goods other than bulk goods
- B63B25/004—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for goods other than bulk goods for containers
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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
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
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Abstract
The invention relates to a double-sided preassembling method of a bulkhead guide rail on a large container ship, wherein the bulkhead is a non-watertight bulkhead, the bulkhead is of a hollow frame structure, the installation precision of the bulkhead guide rail installed on double sides is less than 7mm, the method comprises the steps of firstly installing a guide rail frame on the bulkhead of the container ship on a horizontal jig frame, arranging a rear wall on one side of the guide rail frame, then measuring the levelness on a rib position reference line of the bulkhead, marking ocean impact points on hard gears of the bulkhead, readjusting the levelness of the bulkhead after turning over, ensuring the levelness of the guide rail frame on the rear wall after installation, and enabling the reference rib line, the rear wall guide rail frame and the front wall guide rail frame to be installed to be parallel to each other so as to determine an installation reference and position and preassemble the double-sided guide rail frame by using the found installation reference. The method of the invention has simple operation, can finish the preassembly of the guide rail in advance, reduce the time of the total assembly stage, lighten the pressure of the total assembly field, shorten the construction period in the dock and improve the ship construction efficiency.
Description
Technical Field
The invention relates to the field of ship construction, in particular to a double-sided preassembling method for a large container ship bulkhead guide rail.
Background
With the construction period of the large container ship becoming shorter and shorter, the construction period needs to be shortened gradually according to the characteristics of the container ship. The control of the container and the ship cabin capacity is high, the number of the compartments is large, and the control is always a difficulty in the construction of the main ship body. The guide rail installation is a key node for influencing the integrity of the compartment and subsequent hanging box tests, stacking box tests and the like. The prior container ship bulkhead guide rails are installed on one side of the preassembly in the subsection stage, and due to the high precision requirement and the large deformation factor of the bulkhead, the guide rails on the other side are installed in the total assembly stage, so that the total assembly time is greatly influenced, the total assembly tire position overstock time is too long, the construction efficiency is low, the bulkhead cannot be formed, the container ship bottom, side and other total sections are simple in structure and short in assembly period, the assembly time cannot be matched with the total assembly time of the bulkhead, and the dock carrying progress is seriously influenced.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a double-sided preassembling method for a large container ship bulkhead guide rail. The invention fully utilizes the state of ship bulkhead segment construction, advances the installation of the guide rail frame to the segment stage, and realizes the pre-installation so as to solve the problems in the background technology.
In order to achieve the purpose of the invention, the technical scheme provided by the invention patent is as follows:
a double-sided pre-installation method for a guide rail of a large container ship bulkhead adopts the steps that after one guide rail is installed on a horizontal jig frame of the container ship bulkhead, the levelness is measured on a bulkhead rib position reference line, and ocean rushing points are marked on hard shelves of the bulkhead. After turning over, readjusting the level of the bulkhead, ensuring the levelness of the rear wall guide rail bracket firstly, ensuring the level of the reference rib position line, and finally enabling the reference rib position line, the rear wall guide rail bracket and the front wall guide rail bracket to be installed to be parallel to each other, finding an installation reference and carrying out positioning preassembly of the guide rail. The method specifically comprises the following steps:
and S1, horizontally adjusting the compartment, horizontally adjusting the rib position datum line to the levelness requirement, and marking ocean rushing points at each hard stop of the compartment. After turning over, the level of the compartment is readjusted, the levelness of the rear wall guide rail bracket is firstly ensured, then the level of the reference rib position line is ensured, and finally the reference rib position line, the rear wall guide rail bracket and the front wall guide rail bracket to be installed are all parallel to each other.
S2, marking a guide rail, and marking a hull central line (only left piece); 1470mm straight section line (right panel only) hatch coaming panel 1m horizontal inspection line downwards; 10.005m straight section line; a guide rail connecting plate sideline; the rear wall scribing is carried out after the welding between the framework and the rear wall and between the framework and the front wall is finished; and (4) marking the front wall, after the single-sided guide rail of the rear wall surface is installed, turning over the front wall in sections. The left segment marks out the center line of the ship body, and the right segment marks out a 1470mm straight section line. The left segment was taken 10.005m from the hull centerline to port as a 10m straight line for rail mount installation. The right section was taken 8.535m from midship at 1.47m to starboard and was installed as a rail frame at 10m straight section.
And S3, marking a horizontal inspection line, and taking 1000mm of the upper edge of the cabin surrounding panel as a reference surface and measuring downwards as the horizontal inspection line. And drawing a guide rail connecting plate sideline according to the guide rail frame layout drawing, wherein the guide rail connecting plate sideline is offset from the center line position of the guide rail frame by 165 mm. And drawing lines to two sides by taking a straight section line of 10m as a starting point to form a left 1, left 2, left 3, left 4 and left 5 … … or a right 1, right 2, right 3, right 4 and right 5 … … guide rail frame boundary line.
And S4, installing a marker post, wherein in order to ensure that the guide rail surface is parallel to the theoretical surface of the transverse bulkhead, a data standard is required to be set when the guide rail is installed. The standard base surface is used as a reference object for marking the guide rail connecting plate, and the standard 3# angle iron L30 multiplied by 30 multiplied by 4 multiplied by 700 is marked. The number of the marker posts: single surface (N +6) (N is the number of the connecting plates); marking height: the theoretical surface of the transverse bulkhead faces upwards between 320 and 700 mm; identification requirements: marking with a stone pen; the length of a mark post at the 10m straight cutting line of the hatch coaming: 2.6m
S5, positioning the guide rail bracket, positioning left and right: detecting by using a distance gauge according to the side line of the guide rail frame, and taking the distance gauge as a standard; positioning from top to bottom: the guide rail frames lower than the hatch coaming are required to take 550mm inspection lines downwards measured by taking the upper edge of the hatch coaming panel as a reference plane as the basis for positioning the edge of the guide head, and the thickness of the guide rail frames is not more than 1/3 mm in consideration of the misalignment degree of the connecting plate and the ship body member; positioning at high and low positions: in order to determine the height of the marking on the marker post, i.e. the distance a of the marking to the guide surface. A unified marking pole with the length of 2.6m is arranged at the straight section line of 10m of the hatch coaming, the unified marking pole is vertical to the transverse bulkhead surface, two ends of the unified marking pole extend out of the hatch coaming panel by 400mm, and 150mm is measured upwards from the upper edge of the hatch coaming panel as a reference to be used as the height of the guide rail surface. And then measuring the height of the hatch coaming panel upwards to obtain B through laser identification, finally determining the height of the guide rail surface to be A-B-150, and firmly binding two marker posts corresponding to the guide rail frame by using thin lines to ensure that the height of the thin lines is consistent with the height of the identification. And taking A downwards as the height of the guide surface by taking the height of the thin line as a reference. And after the guide rail frame adjusts the level of the guide rail surface by using a clamping horse, subtracting the distance from the thin wire to the guide rail surface according to A to obtain the margin. And (4) cutting the allowance by using a wood block, and removing residues after cutting so as to position.
And S6, welding the guide rail frame, after the guide rail frame is installed, checking the levelness of the guide rail frame, recording the height requirement of the connecting plate to be modified, and rechecking the height of the connecting plate after the modification is finished. After the welding is finished, the levelness, the opening interval, the straightness, the verticality of the connecting plate and the alignment condition of the front wall guide rail frame and the rear wall guide rail frame are checked.
And S7, checking guide rails, mounting a rail frame on one side of the cabin wall, and reversely plugging the center line (P surface) of the ship body, the 1470 straight-section line (S surface), the 10m straight-section line, the horizontal checking line with the hatch coaming facing downwards by 1m and each side line of the rail frame to the cabin surface on the other side by using a wire swinging method.
The invention also provides a container ship compartment with the double-sided guide rail frame preassembled, wherein the double-sided guide rail frame is preassembled on the compartment for the large container ship, and the container ship compartment is built by adopting the method.
Based on the technical scheme, the invention has the beneficial effects that:
1. the method is simple to operate, and the guide rail installation control is carried out on the design form of the weak structure according to the precision control method, so that the problems caused by structural deformation are effectively controlled, and meanwhile, the guide rail preassembly can be completed in advance.
2. The guide rail installation in the prior art is originally for further controlling the cabin capacity, most guide rails are installed in the dock stage, the installation difficulty is high, the high-altitude operation is realized, the construction is difficult, the hoisting times are multiple, and the efficiency is low.
Drawings
Fig. 1 is a cross-bay profile of a pre-assembled rail carrier of the present invention.
FIG. 2 is a schematic view of the position of a rail bracket installed at 10m cross section in the invention.
FIG. 3 is a schematic drawing of a 1000mm horizontal inspection line according to the present invention.
Fig. 4 is a schematic drawing of a guide rail frame boundary line in the invention.
Fig. 5 is a schematic view of positioning of the marker post on the guide rail bracket according to the invention.
FIG. 6 is a schematic view showing the positioning of the rail frame in the present invention.
Detailed Description
The invention is further described in the following detailed description with reference to the drawings and specific examples for better understanding of the invention's constituent structures and operation, but not for limiting the scope of the invention.
The invention provides a double-sided preassembling method for bulkhead guide rails on a large container ship. As shown in figure 1, the compartment applied to a large container ship is divided into a watertight compartment and a nonwatertight compartment, the method of the invention is mainly applied to the nonwatertight compartment, the compartment is of a hollow frame structure and comprises a framework positioned in the middle part, a rear wall and a front wall which are respectively fixed on two sides of the framework, one end surface of the compartment is a hatch coaming panel, the guide rail frames are respectively installed on the outer sides of the front wall and the rear wall, and the installation precision of the compartment guide rail installed on two sides is less than 7 mm.
The method of the invention needs to install one guide rail frame at the bulkhead of the container ship on the horizontal jig frame, one side of the installed guide rail frame is a rear wall, then the levelness is measured on the rib position reference line of the bulkhead, ocean rushing points are marked at hard shelves of the bulkhead, the leveling of the bulkhead is readjusted after the bulkhead is turned over, the levelness of the guide rail frame positioned on the rear wall after installation is ensured, so that the reference rib position line, the rear wall guide rail frame and the front wall guide rail frame to be installed are parallel to each other, thereby determining the installation reference, and positioning and pre-installing the double-sided guide rail frame according to the found installation reference.
The installation method comprises the following detailed steps:
the method comprises the following steps of firstly, installing a rear wall guide rail frame, placing a manufactured compartment on a horizontal jig frame in a segmented manner, installing the rear wall guide rail frame on the compartment, carrying out horizontal adjustment on the compartment after the guide rail frame is installed, adjusting the level of a rib position datum line to meet the levelness requirement, and marking each hard gear of the compartment with a marine rushing point.
And secondly, readjusting the level of the compartment after the compartment is turned over, ensuring the levelness of the rear wall guide rail bracket, ensuring the level of the reference rib position line, and finally enabling the reference rib position line, the rear wall guide rail bracket and the front wall guide rail bracket to be installed to be parallel to each other.
And thirdly, marking a guide rail, namely marking a rear wall, after the welding between the framework and the rear wall and between the framework and the front wall is finished, marking a front wall, after a single-side guide rail on the rear wall is installed, turning the front wall in a segmented manner, marking a center line of a ship body on a left segment, marking a straight section line of 1470mm on a right segment, wherein in the example, 10.005m of the left segment is measured towards the port from the center line of the ship body to be used as a 10m straight section line for installing the guide rail bracket, and 8.535m of the right segment is measured towards the starboard from the midship to be used as a 10m straight section line for installing the guide rail bracket, as shown in fig. 2.
Fourthly, marking a horizontal inspection line, taking the upper edge of the cabin surrounding panel 7 as a reference plane, measuring 1000mm downwards to form the horizontal inspection line, marking a guide rail connecting plate sideline according to the guide rail frame layout drawing, wherein the connecting plate sideline deviates from the central line position of the guide rail frame by 165mm, and marking a left 1, a left 2, a left 3, a left 4, a left 5 … … or a right 1, a right 2, a right 3, a right 4, a right 5 … … guide rail frame sideline towards two sides by taking a straight section line of 10m as a starting point, as shown in fig. 3 and fig. 4.
Fifthly, installing the marker post, as shown in fig. 6, in order to ensure that the guide rail surface and the theoretical surface of the transverse bulkhead are parallel to each other, setting a data standard for installing the guide rail, wherein the base surface of the data standard is used as a reference object for marking the guide rail connecting plate, and the marker post 5 is used as a reference object, wherein in actual case application, the specification of the marker post 5 is 3# angle iron L30 × 30 × 4 × 700, the number of the marker posts: single surface (N +6) (N is the number of the connecting plates); marking height: the theoretical surface of the transverse bulkhead faces upwards between 320 and 700 mm; marking the identification requirement by using a pen; the length of the post at the 10m straight section line of the hatch coaming is 2.6 m.
Sixthly, positioning the guide rail frame, as shown in fig. 5 and 6, the positioning of the guide rail frame is divided into left and right positioning, up and down positioning and high and low positioning, and the left and right positioning is carried out: detecting by using a distance gauge according to the side line of the guide rail frame, and taking the distance gauge as a standard; for up and down positioning: the guide rail frames lower than the hatch coaming are required to take 550mm inspection lines downwards measured by taking the upper edge of the hatch coaming panel as a reference plane as the basis for positioning the edge of the guide head, and the thickness of the guide rail frames is not more than 1/3 mm in consideration of the misalignment degree of the connecting plate and the ship body member; for high-low positioning: in order to determine the height of the mark on the marker post, namely the size of the distance A between the mark and the guide surface; the uniform marker post 5 with the length of 2.6m is arranged at the straight cutting line of 10m of the hatch coaming and is vertical to the horizontal bulkhead surface, the height of the hatch coaming panel 6 extending out of two ends is 400mm, 150mm is measured upwards as the reference from the upper edge of the hatch coaming panel and is used as the height of the guide rail surface, then the distance from the upper edge of the hatch coaming panel to the laser mark is B, finally the height of the guide rail surface is determined to be A-B-150, the two marker posts corresponding to the guide rail frame are firmly bound by a thin wire, the height of the thin wire is consistent with the height of the mark, and the height of the guide rail surface A is measured downwards by taking the height of the thin wire as the reference. In addition, after the guide rail frame is used for adjusting the level of the guide rail surface by a clamping horse, the distance between a thin line and the guide rail surface is subtracted according to A to obtain a margin, the margin is cut by a wood block and cut, and residues are removed after cutting, so that positioning can be realized.
And seventhly, welding the guide rail frame, checking the levelness of the guide rail frame after the guide rail frame is installed, recording the height requirement of the connecting plate needing to be modified, and rechecking the height of the connecting plate after the modification is finished. After the welding is finished, the levelness, the opening interval, the straightness, the verticality of the connecting plate and the alignment condition of the front wall guide rail frame and the rear wall guide rail frame are checked.
And eighthly, checking the guide rails, namely after the guide rail frame on one side of the cabin wall is installed, reversely plugging the central line (P surface) of the ship body, the 1470 straight cutting line (S surface), the 10m straight cutting line, the horizontal checking line with the hatch coaming facing downwards by 1m and each side line of the rail frame to the cabin surface on the other side by using a wire swinging method, and removing the marker post after the pre-installed double-sided guide rail frame is checked.
The invention also provides a container ship compartment with the double-sided guide rail frame preassembled, wherein the double-sided guide rail frame is preassembled on the compartment for the large container ship, and the container ship compartment is built by adopting the method.
The two-sided guide rail of the compartment is preassembled in the subsection stage, the period of the total assembly stage is further shortened, the two-sided guide rail is matched with the total assembly period of other total sections, and the dock carrying efficiency is effectively improved.
The method is simple to operate, effectively controls the problems caused by structural deformation, and can complete the preassembly of the guide rail in advance. The pre-assembling efficiency is improved, the total assembling stage time is reduced, the pressure of a total assembling field is solved, the building period in a dock is shortened, and the ship building efficiency is improved.
Claims (9)
1. A double-sided pre-installation method for a bulkhead guide rail on a large container ship comprises the steps of installing a bulkhead on a horizontal jig of the container ship, installing a guide rail frame on one side of the bulkhead, measuring the levelness of a rib position reference line of the bulkhead, marking a foreign impact point at each hard gear of the bulkhead, re-adjusting the level of the bulkhead after turning over the bulkhead, ensuring the levelness of the guide rail frame positioned on the rear wall after installation, and enabling the reference rib position line, the rear wall guide rail frame and the guide rail frame to be installed to be parallel to each other, thus, the installation reference is determined, and the positioning preassembly of the double-sided guide rail frame is carried out according to the found installation reference.
2. A method for double-sided pre-installation of compartment rails on large container ships according to claim 1, characterised in that the method comprises the following detailed steps:
step one, installing a rear wall guide rail frame, placing the manufactured compartment on a horizontal jig frame in a segmented manner, installing the rear wall guide rail frame on the compartment, carrying out horizontal adjustment on the compartment after the guide rail frame is installed, adjusting the level of a rib position datum line to the levelness requirement, and marking each hard gear of the compartment with a marine rushing point;
secondly, readjusting the level of the compartment after the compartment is turned over, ensuring the levelness of the rear wall guide rail bracket, ensuring the level of the reference rib position line, and finally enabling the reference rib position line, the rear wall guide rail bracket and the front wall guide rail bracket to be installed to be parallel to each other;
thirdly, marking the guide rail, namely marking the rear wall, after the framework is welded with the rear wall and the framework is welded with the front wall, marking the front wall, after the single-sided guide rail on the rear wall is assembled and turned in sections, marking the center line of the ship body on the left segment, and marking the straight cutting line of 1470mm on the right segment;
fourthly, marking a horizontal inspection line, taking the upper edge of the cabin surrounding panel as a reference plane, measuring 1000mm downwards to form the horizontal inspection line, and marking a side line of the guide rail connecting plate according to the guide rail frame layout;
fifthly, installing a marker post, wherein in order to ensure that the guide rail surface is parallel to the theoretical surface of the transverse bulkhead, a data standard needs to be arranged on a guide rail installing frame, the base surface of the data standard is used as a reference object for marking a guide rail connecting plate, and the marker post is installed as a reference object;
sixthly, positioning a guide rail frame, wherein the positioning of the guide rail frame is divided into left and right positioning, up and down positioning and high and low positioning, and the left and right positioning is realized: detecting by using a distance gauge according to the side line of the guide rail frame, and taking the distance gauge as a standard; for up and down positioning: the guide rail frames lower than the hatch coaming are required to take 550mm inspection lines downwards measured by taking the upper edge of the hatch coaming panel as a reference plane as the basis for positioning the edge of the guide head, and the thickness of the guide rail frames is not more than 1/3 mm in consideration of the misalignment degree of the connecting plate and the ship body member; for high-low positioning: in order to determine the height of the mark on the marker post, namely the size of the distance A between the mark and the guide surface;
seventhly, welding the guide rail frame, after the guide rail frame is installed, checking the levelness of the guide rail frame, recording the height requirement of the connecting plate needing to be modified, and rechecking the height of the connecting plate after the modification is finished;
and eighthly, checking the guide rails, namely after the guide rail frame on one side of the cabin wall is installed, reversely plugging the central line (P surface) of the ship body, the 1470 straight cutting line (S surface), the 10m straight cutting line, the horizontal checking line with the hatch coaming facing downwards by 1m and each side line of the rail frame to the cabin surface on the other side by using a wire swinging method, and removing the marker post after the pre-installed double-sided guide rail frame is checked.
3. The double-sided pre-installation method of the compartment rails on the large container ship according to claim 2, wherein in the third step, 10.005m is measured from the center line of the ship body to the port side as a 10m straight-cut line for installing the rail bracket, and 8.535m is measured from the center line of the ship body to the starboard side as a 10m straight-cut line for installing the rail bracket.
4. The method of claim 2, wherein in the fourth step, the connecting plate border line is offset from the center line of the rail frame by 165mm, and left 1, left 2, left 3, left 4, left 5 … … or right 1, right 2, right 3, right 4, right 5 … … rail frame border line is scribed to two sides with a straight line of 10m as a starting point.
5. The double-sided pre-installation method for the compartment rails of a large container ship as claimed in claim 2, wherein in the fifth step, the number of the posts is as follows, wherein the number of the posts is as follows, and the standard 3# angle iron L30 x 30 x 4 x 700: single surface (N +6) (N is the number of the connecting plates); marking height: the theoretical surface of the transverse bulkhead faces upwards between 320 and 700 mm; marking the identification requirement by using a pen; the length of the post at the 10m straight section line of the hatch coaming is 2.6 m.
6. The double-sided preassembly method of the bulkhead guide rail on the large container ship according to claim 2, wherein in the sixth step, a unified marking rod with the length of 2.6m is arranged at a straight cutting line of 10m of the hatch coaming, is vertical to the cross cabin wall surface, two ends of the unified marking rod extend out of the hatch coaming panel by 400mm, 150mm is measured upwards from the upper edge of the hatch coaming panel as a reference to serve as the height of the guide rail surface, then B is obtained by measuring upwards from the upper edge of the hatch coaming panel to a laser mark, finally the height of the guide rail surface is determined to be A-B-150, the two marking rods corresponding to the guide rail frame are firmly bound by a thin wire, the height of the thin wire is consistent with the height of the mark, and A is measured downwards as the height of the guide rail surface by taking the height of the thin wire as a reference.
7. The method of claim 2, wherein in the sixth step, after the rail frame is clamped to adjust the level of the rail surface, the distance from the thin line to the rail surface is subtracted according to A to obtain the allowance, the allowance is cut by wood blocks, and the allowance is cut and the residue is removed after cutting, so that the positioning is realized.
8. The method of claim 2, wherein in the seventh step, after the welding, the levelness, the opening distance, the straightness, the verticality of the connecting plate and the alignment of the front and rear wall rail frames are checked.
9. A double sided pre-installed rail frame container ship compartment, wherein the large container ship compartment is pre-installed with a double sided rail frame, the container ship compartment being constructed by the method of any one of claims 1 to 8.
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| CN202111133494.7A CN113715990A (en) | 2021-09-27 | 2021-09-27 | Double-sided preassembling method for bulkhead guide rail on large container ship and bulkhead |
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| CN202111133494.7A CN113715990A (en) | 2021-09-27 | 2021-09-27 | Double-sided preassembling method for bulkhead guide rail on large container ship and bulkhead |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114212213A (en) * | 2022-01-07 | 2022-03-22 | 江南造船(集团)有限责任公司 | Accumulated water cleaning device for water-tight bulkhead of box ship |
| CN114735155A (en) * | 2022-04-02 | 2022-07-12 | 江南造船(集团)有限责任公司 | Installation method of corner guide rail of container ship |
| CN115230907A (en) * | 2022-08-24 | 2022-10-25 | 江南造船(集团)有限责任公司 | Container ship watertight transverse bulkhead sectional folding supporting method and supporting device |
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| CN114212213B (en) * | 2022-01-07 | 2023-09-12 | 江南造船(集团)有限责任公司 | Water accumulation cleaning device for watertight compartment of tank ship |
| CN114735155A (en) * | 2022-04-02 | 2022-07-12 | 江南造船(集团)有限责任公司 | Installation method of corner guide rail of container ship |
| CN114735155B (en) * | 2022-04-02 | 2023-03-14 | 江南造船(集团)有限责任公司 | Installation method of corner guide rail of container ship |
| CN115230907A (en) * | 2022-08-24 | 2022-10-25 | 江南造船(集团)有限责任公司 | Container ship watertight transverse bulkhead sectional folding supporting method and supporting device |
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