CN114379731B - Installation method of water cannon platform on chimney block in ultra-large container ship - Google Patents
Installation method of water cannon platform on chimney block in ultra-large container ship Download PDFInfo
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- CN114379731B CN114379731B CN202111517724.XA CN202111517724A CN114379731B CN 114379731 B CN114379731 B CN 114379731B CN 202111517724 A CN202111517724 A CN 202111517724A CN 114379731 B CN114379731 B CN 114379731B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 161
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000009434 installation Methods 0.000 title claims description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 238000003466 welding Methods 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 9
- 238000005457 optimization Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
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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
- B63B73/30—Moving or transporting modules or hull blocks to assembly sites, e.g. by rolling, lifting or floating
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Transportation (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a method for installing a water cannon platform on a chimney block in an oversized container ship, which mainly comprises the following steps: (1) Structural designer optimizes the corresponding plate seam of the water cannon platform correspondingly, and ensures that the structure and the plate seam of the water cannon platform protruding out of the top deck of the chimney are optimized correspondingly; (2) Making the corresponding water cannon platform structure into a complete bulk piece; (3) Assembling the water cannon platform in place in the stage of the headquarter, dropping the water cannon platform to the top deck surface of the chimney, and fixing the water cannon platform by adopting angle steel; (4) And (5) installing the hinge on the chimney top deck and the water cannon platform (5) when the chimney block is carried in place, removing the fixed angle steel by constructors, and placing the water cannon platform at a corresponding position by using the hoist for welding. The invention ensures the double integrity of the chimney total section structure and outfitting, avoids the scattered hanging work of the uppermost chimney section, avoids most of overhead work load, and shortens the dock period.
Description
Technical Field
The invention relates to ship construction, in particular to a method for installing a water cannon platform on a chimney block in a super-large container ship.
Background
At present, in order to improve structural integrity and outfitting integrity, a chimney block of the ultra-large container ship reduces the later high-altitude work load and improves welding quality. In the construction process of a common ship, a common chimney is completed in a whole-crane mode. However, the height of the chimney block of the ultra-large container ship is approximately 80 meters after the loading is completed, and the height approaches the limit lifting height of the gantry crane. The section structure of the chimney positioned at the uppermost layer is weaker, so that the hanging ring of the whole section of the chimney is generally arranged on the next deck, thereby meeting the requirement of lifting and the requirement of the strength of the hanging structure.
For the ultra-large container, a water cannon platform is arranged on a top deck of the chimney at the uppermost end of the chimney block, and two water cannon platforms are respectively arranged at two sides of the chimney block, so that four water cannon platforms are designed in total and are used for placing water cannons. However, because the water cannon platform is popped out of the top deck of the chimney to two sides, the water cannon platform is inevitably interfered by a steel wire rope connected with the hanging ring when the whole chimney block is hung.
In the existing construction scheme, after the whole chimney block is carried on a ship body by using a gantry crane, four water cannon platforms are respectively hoisted on a chimney top deck of the chimney block by using the gantry crane for the second time, and are respectively installed and fixed at a determined position. The operation has the defect of waste of gantry crane resources, and the installation efficiency is very low, so that the shipbuilding progress is influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for installing a water cannon platform on a chimney block in a oversized container ship. The installation method fully utilizes the characteristics of the water cannon platform, installs the water cannon platform in place when the headquarters are carried, does not influence the overall hoisting of the chimney headquarters, fully saves gantry crane resources, and completes the assembly work of the water cannon platform with high quality and high efficiency.
In order to achieve the above object, the present invention provides the following technical solutions:
the method for installing the water cannon platform on the chimney block in the ultra-large container ship, wherein the height of the chimney block is 30 meters, the distance between the chimney block and the dock bottom after being hoisted to the ultra-large container ship is 80 meters, the four water cannon platforms are respectively fixed at the protruding positions of the end walls of the two sides of the top chimney deck of the chimney block in pairs, and the four water cannon platforms protrude to the outside of the two sides after being fixedly installed on the chimney block, and the method for installing the water cannon platform comprises the following steps:
firstly, respectively manufacturing four water cannon platforms, optimally designing a plate seam of a connecting part of the water cannon platform and the upper end wall of a chimney block during manufacturing, and simultaneously ensuring that the structure and welding seam of the water cannon platform protruding out of a chimney top deck at the top of the chimney block are optimized;
secondly, manufacturing a water cannon platform structure into a complete bulk piece, wherein the bulk piece consists of a water cannon platform plate, a reverse reinforcement and a triangular plate;
thirdly, after the whole section of the chimney is manufactured, installing a hinge on the whole section of the chimney, fixing one end of the hinge at the protruding positions of the end walls at two sides of a top deck of the chimney, respectively hoisting four water cannon platform structures to the corresponding installation positions on the whole section of the chimney, respectively assembling the water cannon platforms in place, and temporarily fixing each water cannon platform and the whole section of the chimney by using fixed angle steel;
the fourth step, the other end of the hinge is arranged at the connection position of the water cannon platform and the chimney top deck so as to install the hinge for realizing turnover at the fracture position between the chimney top deck and the water cannon platform plate;
fifthly, in the carrying stage, a gantry crane is used for hoisting the chimney block in place for carrying the ship body, and when the chimney block is hoisted and pulled, a steel wire rope of the gantry crane is close to the position of a water cannon platform on the chimney block and does not interfere with the position of the water cannon platform;
and sixthly, after the chimney block is carried in place, a constructor removes the fixed angle steel, releases one side of the water cannon platform, and places the water cannon platform around a hinge to an installation position by utilizing an electric hoist, and performs welding fixation after checking the size.
In the first step, the optimal design of the plate seam of the water cannon platform means that the plate seam is designed at the position, protruding from the left end wall and the right end wall, of the chimney top deck, 20mm, and meanwhile, the structure and the welding seam of the water cannon platform protruding from the chimney top deck at the top of the chimney block are optimized, and the optimization means that the joint of the water cannon platform and the chimney end wall is reinforced and designed into a triangle form.
In the second step, the water cannon platform structure comprises a water cannon platform plate, a reverse reinforcement and a triangular plate, wherein the reverse reinforcement is arranged on the back surface of the water cannon platform plate, and the triangular plate is arranged at the welding seam of the water cannon platform plate.
In the third step, the process of respectively assembling the water cannon platforms in place is as follows: firstly, placing two hanging rings at positions 400mm away from the center of gravity of a water cannon platform, hanging the water cannon platform to an installation position by using a tower crane, when the water cannon platform is contacted with fixed angle steels, installing the two fixed angle steels on a top deck of a chimney, fixing the fixed angle steels on two sides of the water cannon platform in a spot welding mode, and finally loosening a steel wire rope shackle of the tower crane; the hanging ring is not detached temporarily in the step, and is matched with the electric hoist to be used after the whole section of the chimney is carried, and the water cannon platform is placed at the installation position to be welded.
In the third step, the temporary fixing process of the fixed angle steel is as follows: the projection of the water cannon platform after being turned into the chimney top deck is judged in advance, two fixed angle steels are placed on two sides of the projection, one end of each fixed angle steel is welded with the chimney top deck, and after the water cannon platform is in place, the other end of each fixed angle steel is fixed with the water cannon platform through spot welding.
In the sixth step, the operation process of placing the water cannon platform around the hinge to the installation position by using the electric hoist is as follows: the electric hoist is fixed on a top deck of the chimney, then connected with a hanging ring arranged on the water cannon platform, then folded around a hinge to place the water cannon platform at a preset installation position, and finally welded and fixed to complete the installation of the water cannon platform on a chimney block.
Based on the technical scheme, compared with the prior art, the invention has the following technical effects:
the invention is used for the installation work of the water cannon platform of the ship chimney block, improves the double integrity of the chimney block structure and outfitting, avoids the scattered hanging work of the uppermost chimney section, avoids most of high-altitude work load, and shortens the dock period.
Drawings
FIG. 1 is a schematic diagram of the installation position of a water cannon platform on a chimney block in an oversized container ship in the installation method of the water cannon platform on the chimney block.
FIG. 2 is a flow chart of the operation of the method for installing the water cannon platform on the chimney block in the ultra-large container ship.
Fig. 3 is a schematic structural view of a water cannon platform in the installation method of the water cannon platform on the chimney block in the ultra-large container ship.
Fig. 4 is a schematic diagram of the installation position of the fixed angle steel in the installation method of the water cannon platform on the chimney block in the ultra-large container ship.
Detailed Description
The following describes the installation method of the ship chimney block water cannon platform with reference to the attached drawings, so as to more clearly understand the application process of the method of the invention, but the protection scope of the invention is not limited by the method.
As shown in fig. 1, the height of the chimney block is 30 meters, the height of the chimney block 1 from the dock bottom is 80 meters after the chimney block is hoisted to the oversized container ship, four water cannon platforms 2 are respectively fixed at the protruding positions of the end walls of two sides of a top deck of a chimney at the top of the chimney block 1 in pairs, and the four water cannon platforms 2 protrude to the outside of two sides after being fixedly installed on the chimney block 1. Because the highest point of the chimney block 1 is up to 77 meters, after the whole lifting of the chimney block 1 by using the gantry crane is finished, the installation height of the water cannon platform 2 exceeds the lifting range of the tower crane, the tower crane cannot be used, and only the large-sized gantry crane can be used for lifting again. Under the condition of shortage of hoisting resources of the gantry crane, the hoisting efficiency and the construction engineering progress are affected.
As shown in fig. 2, the invention relates to a method for installing a water cannon platform on a chimney block in a very large container ship, which generally comprises the following steps: (1) Structural designer optimizes the corresponding plate seam of the water cannon platform correspondingly, and ensures that the structure and the plate seam of the water cannon platform protruding out of the top deck of the chimney are optimized correspondingly; (2) The manufacturing department door makes the corresponding water cannon platform structure into a complete bulk piece; (3) Assembling the water cannon platform in place in the stage of the headquarter, dropping the water cannon platform to the top deck surface of the chimney, and temporarily fixing the water cannon platform by adopting fixed angle steel; (4) Mounting the hinge to the chimney top deck and the water cannon platform; (5) After the chimney block is carried in place, constructors remove the fixed angle steel, and the water cannon platform is placed at a corresponding position by using the hoist to weld.
For further explanation, the implementation of the present invention will be described in detail in the following steps:
the installation method of the water cannon platform on the chimney block in the ultra-large container ship is characterized by comprising the following steps:
firstly, respectively manufacturing four water cannon platforms, optimally designing a plate seam of a connecting part of the water cannon platform and the upper end wall of a chimney block during manufacturing, designing the plate seam at a position, protruding from a top deck of the chimney, of 20mm from left and right end walls, namely, the connecting part of the upper end wall of the chimney block protrudes outwards by 20mm, correspondingly shortening the size of the water cannon platform by 20mm, and simultaneously ensuring that the structure and welding seam of the water cannon platform protruding from the top deck of the chimney block are optimized, wherein the structural optimization of the water cannon platform means that the connecting part of the water cannon platform and the end wall of the chimney is reinforced and designed into a triangular plate form, and the welding seam optimization means that the welding seam is beveled;
and secondly, manufacturing the water cannon platform structure into a complete bulk part, wherein the bulk part consists of a water cannon platform plate 2, a reverse reinforcement 5 and a triangular plate 6, the reverse reinforcement 5 is arranged on the back surface of the water cannon platform plate 2, the reverse reinforcement is of a rectangular frame structure, the triangular plate 6 is arranged at the welding seam of the water cannon platform plate 2, and the manufacturing is completed as shown in figure 3.
Thirdly, installing a hinge on the chimney block after the chimney block is manufactured in the block stage, fixing one end of the hinge at the protruding positions of the end walls on two sides of a chimney top deck, respectively hoisting four water cannon platform structures to the corresponding installation positions on the chimney block, respectively assembling the water cannon platforms in place, respectively temporarily fixing each water cannon platform and the chimney block by using fixed angle steel, placing two hanging rings at the positions 400mm on two sides of the center of gravity of the water cannon platform, hoisting each water cannon platform to the corresponding installation positions by using a tower crane, when the water cannon platform contacts the fixed angle steel, pre-installing the two fixed angle steels on the chimney top deck, fixing the fixed angle steels on two sides of the water cannon platform by using a spot welding mode, and loosening a tower crane steel wire rope to shackle after fixing the fixed angle steels and the water cannon platform; in the step, the two hanging rings are not detached temporarily, after the whole section of the chimney is carried, the hanging rings are matched with the electric hoist for use, so that the water cannon platform is placed at the corresponding final installation position for welding and fixing, and the fixing form between the fixed angle steel and the water cannon platform is shown in figure 4. Specifically, the temporary fixing process of the fixed angle steel 4 is as follows, the projection that the water cannon platform 2 turns over into the chimney top deck on the chimney block 1 is judged in advance, two fixed angle steels 4 are prevented at two sides of the projection, one end of each fixed angle steel 4 is welded with the chimney top deck, and after the water cannon platform 2 is in place, the other end of each fixed angle steel 4 is welded with the water cannon platform 2 in a spot mode to realize temporary fixing.
And fourthly, installing the other end of the hinge at the connection part of the water cannon platform and the chimney top deck so as to install the hinge for realizing folding at the fracture part between the chimney top deck and the water cannon platform plate.
Fifthly, in the carrying stage, a gantry crane is used for hoisting the chimney block in place for carrying the ship body, and when the chimney block is hoisted and pulled, a steel wire rope of the gantry crane is close to the position of a water cannon platform on the chimney block and does not interfere with the position of the water cannon platform;
and sixthly, after the chimney block is carried in place, a constructor removes the fixed angle steel, releases one side of the water cannon platform, and places the water cannon platform around a hinge to an installation position by utilizing an electric hoist, and performs welding fixation after checking the size.
In the sixth step, the electric hoist is fixed on the top deck of the chimney by utilizing the operation process that the electric hoist places the water cannon platform around the hinge, the electric hoist is connected with the hanging ring on the water cannon platform, the water cannon platform is hung and pulled to turn over through the hinge, after the water cannon platform is placed at the corresponding installation position, the water cannon platform is supported through the triangular plate, the welding seam 3 of the water cannon platform is butted with the welding seam 3 on the convex end wall at the two ends of the top deck of the chimney, whether the size meets the requirement or not is measured after the welding seam 3 is butted, finally, the water cannon platform is welded and fixed in a welding mode, the installation operation of the four water cannon platforms on the whole section of the chimney is completed, and the installation is shown in fig. 1.
The invention is used for the installation work of the water cannon platform at the general section of the ship chimney, solves the problem of interference between the steel wire rope for hoisting and the water cannon platform which is positioned on the deck of the upper layer of the lifting ring and protrudes out of the end wall when the general section of the chimney is hoisted, improves the dual integrity of ship outfitting and structure, reduces the overhead workload and shortens the construction period of the ship in the dock.
Claims (5)
1. The method for installing the water cannon platform on the chimney block in the ultra-large container ship is characterized in that the height of the chimney block is 30 meters, and the distance from the chimney block to the dock floor after the chimney block is hoisted to the ultra-large container ship is 80 meters, and the method comprises the following steps:
firstly, respectively manufacturing four water cannon platforms, optimally designing a plate seam of a connecting part of the water cannon platform and the upper end wall of a chimney block during manufacturing, and simultaneously ensuring that the structure and welding seam of the water cannon platform protruding out of a chimney top deck at the top of the chimney block are optimized;
secondly, manufacturing a water cannon platform structure into a complete bulk piece, wherein the bulk piece consists of a water cannon platform plate, a reverse reinforcement and a triangular plate;
thirdly, after the whole section of the chimney is manufactured, installing a hinge on the whole section of the chimney, fixing one end of the hinge at the protruding positions of the end walls at two sides of a top deck of the chimney, respectively hoisting four water cannon platform structures to the corresponding installation positions on the whole section of the chimney, respectively assembling the water cannon platforms in place, and temporarily fixing each water cannon platform and the whole section of the chimney by using fixed angle steel; the process of respectively assembling the water cannon platforms in place is as follows: firstly, placing two hanging rings at positions 400mm away from the center of gravity of a water cannon platform, hanging the water cannon platform to an installation position by using a tower crane, when the water cannon platform is contacted with fixed angle steels, installing the two fixed angle steels on a top deck of a chimney, fixing the fixed angle steels on two sides of the water cannon platform in a spot welding mode, and finally loosening a steel wire rope shackle of the tower crane; the hanging ring is not detached temporarily in the step, and is matched with an electric hoist for use after the whole section of the chimney is carried, and the water cannon platform is placed at the installation position for welding;
the fourth step, the other end of the hinge is arranged at the connection position of the water cannon platform and the chimney top deck so as to install the hinge for realizing turnover at the fracture position between the chimney top deck and the water cannon platform plate;
fifthly, in the carrying stage, a gantry crane is used for hoisting the chimney block in place for carrying the ship body, and when the chimney block is hoisted and pulled, a steel wire rope of the gantry crane is close to the position of a water cannon platform on the chimney block and does not interfere with the position of the water cannon platform;
and sixthly, after the chimney block is carried in place, the constructor removes the fixed angle steel, releases one side of the water cannon platform, places the water cannon platform around the hinge to the installation position by utilizing the electric hoist, performs welding fixation after checking the size, and fixes the protruding positions of the end walls of the two sides of the top deck of the chimney block on the top of the chimney block in pairs respectively, and protrudes to the outside of the two sides after the water cannon platform is fixedly installed on the chimney block.
2. The method for installing the water cannon platform on the chimney block in the oversized container ship according to claim 1, wherein the optimal design of the plate seam of the water cannon platform is that the plate seam is designed at the position, protruding from the top deck of the chimney, of 20mm of the left end wall and the right end wall, the optimization of the structure and the welding seam of the water cannon platform is that the width of the water cannon platform is correspondingly shortened by 20mm, a triangular plate is arranged, and the optimization of the welding seam is that beveling is performed.
3. The method for installing the water cannon platform on the chimney block in the oversized container ship according to claim 1, wherein the water cannon platform structure comprises a water cannon platform plate, a reverse reinforcement and a triangular plate, the reverse reinforcement is arranged on the back surface of the water cannon platform plate, and the triangular plate is arranged at a welding seam of the water cannon platform plate.
4. The method for installing a water cannon platform on a chimney block in a oversized container ship according to claim 1, wherein in the third step, the temporary fixing process of the fixing angle steel is as follows: the projection of the water cannon platform after being turned into the chimney top deck is judged in advance, two fixed angle steels are placed on two sides of the projection, one end of each fixed angle steel is welded with the chimney top deck, and after the water cannon platform is in place, the other end of each fixed angle steel is fixed with the water cannon platform through spot welding.
5. The method for installing a water cannon platform on a chimney block in a oversized container ship according to claim 1, wherein in the sixth step, the operation of placing the water cannon platform around the hinge to the installation position by using the electric hoist is as follows: the electric hoist is fixed on a top deck of the chimney, then connected with a hanging ring arranged on the water cannon platform, then folded around a hinge to place the water cannon platform at a preset installation position, and finally welded and fixed to complete the installation of the water cannon platform on a chimney block.
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| CN202111517724.XA CN114379731B (en) | 2021-12-13 | 2021-12-13 | Installation method of water cannon platform on chimney block in ultra-large container ship |
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| CN202111517724.XA CN114379731B (en) | 2021-12-13 | 2021-12-13 | Installation method of water cannon platform on chimney block in ultra-large container ship |
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| CN114379731B true CN114379731B (en) | 2024-03-26 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106794888A (en) * | 2014-10-10 | 2017-05-31 | 泰克尼普法国公司 | With the floating platform for pivoting keel shirt rim |
| CN109533196A (en) * | 2018-11-15 | 2019-03-29 | 青岛北海船舶重工有限责任公司 | A kind of hull steel structured hinge installation method |
| KR20210026943A (en) * | 2019-09-02 | 2021-03-10 | 삼성중공업 주식회사 | Installation method of hinge deck assembly |
| CN112478084A (en) * | 2020-10-30 | 2021-03-12 | 上海江南长兴造船有限责任公司 | Method for carrying and hoisting chimney block of large container ship |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10843771B2 (en) * | 2018-03-13 | 2020-11-24 | Michael Thomas | Expansion deck system for vessels |
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- 2021-12-13 CN CN202111517724.XA patent/CN114379731B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106794888A (en) * | 2014-10-10 | 2017-05-31 | 泰克尼普法国公司 | With the floating platform for pivoting keel shirt rim |
| CN109533196A (en) * | 2018-11-15 | 2019-03-29 | 青岛北海船舶重工有限责任公司 | A kind of hull steel structured hinge installation method |
| KR20210026943A (en) * | 2019-09-02 | 2021-03-10 | 삼성중공업 주식회사 | Installation method of hinge deck assembly |
| CN112478084A (en) * | 2020-10-30 | 2021-03-12 | 上海江南长兴造船有限责任公司 | Method for carrying and hoisting chimney block of large container ship |
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| CN114379731A (en) | 2022-04-22 |
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