CN113968316A - Hoisting method for regular U-shaped main section of chemical tanker - Google Patents
Hoisting method for regular U-shaped main section of chemical tanker Download PDFInfo
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- CN113968316A CN113968316A CN202110720572.7A CN202110720572A CN113968316A CN 113968316 A CN113968316 A CN 113968316A CN 202110720572 A CN202110720572 A CN 202110720572A CN 113968316 A CN113968316 A CN 113968316A
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- ring group
- hoisting
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- steel wire
- deck
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000126 substance Substances 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 230000005484 gravity Effects 0.000 claims description 13
- 239000000725 suspension Substances 0.000 description 6
- 206010033307 Overweight Diseases 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 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
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots
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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)
- Robotics (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides a hoisting method for a regular U-shaped main section of a chemical tanker, which comprises the following steps: the turning-over of the U-shaped block is completed by matching the first lifting ring group, the second lifting ring group, the third lifting ring group, the fourth lifting ring group and the fifth lifting ring group with a steel wire rope and a crane to complete the turning-over of the U-shaped block, and the problem that the crane is overweight in the turning-over process of the U-shaped block is solved. Meanwhile, the total section is directly adopted to carry the hanging ring during the second rotation of the total section, and the field workload is favorably reduced.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a hoisting method for a regular U-shaped main section of a chemical tanker.
Background
The chemical tanker U-shaped total section consists of a deck section, a PS longitudinal bulkhead section and a transverse bulkhead section, and the total section is reversely assembled by taking the deck section as a base surface. As the weight of the block is close to the maximum rated load of the slipway crane, the conventional hoisting scheme inevitably generates the risk of overweight of the crane. Therefore, a new hoisting scheme needs to be designed according to the characteristics of the overall section.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides a hoisting method for a regular U-shaped block of a chemical tanker, which aims at the characteristics of U-shaped block turning and carrying of the chemical tanker, solves the risk of overweight of a general crane in the block turning process, and reduces the field workload and the use of the crane in block carrying.
In order to achieve the above objects and other related objects, the present invention provides a method for hoisting a regular U-shaped block of a chemical tanker, comprising the steps of:
the method comprises the following steps that firstly, under the state that a U-shaped main section is in an inverted state, a first hanging ring group and a second hanging ring group are installed on one side, close to a port side, of a deck, the first hanging ring group comprises four A-shaped hanging rings, the second hanging ring group comprises four A-shaped hanging rings, the first hanging ring group and the second hanging ring group are symmetrically arranged along a gravity center extension line of the deck, and the gravity center extension line of the deck is perpendicular to the side direction of the port side of the U-shaped main section; a third hoisting ring group and a fourth hoisting ring group are arranged on one side of the deck close to the starboard, the third hoisting ring group comprises two A-shaped hoisting rings, the fourth hoisting ring group comprises two A-shaped hoisting rings, and the third hoisting ring group and the fourth hoisting ring group are symmetrical along the gravity center extension line of the deck; a fifth hoisting ring group is arranged on one side, close to the starboard, of the longitudinal bulkhead section, is positioned at one end, far away from the deck, of the longitudinal bulkhead section, and comprises 4C-shaped hoisting rings;
step two, connecting one group of steel wire ropes with a first lifting ring group and a first lifting ring group to serve as a main hook for turning over of the total section, and connecting the other group of steel wire ropes with a fifth lifting ring group to serve as an auxiliary hook for turning over of the total section;
pulling the main hook steel wire rope and the auxiliary hook steel wire rope upwards, lifting the U-shaped main section to a proper position, keeping the auxiliary hook steel wire rope stationary, and continuously pulling the main hook steel wire rope upwards until the hanging point of the main hook is vertical to the gravity center of the U-shaped main section and the ground, and releasing the auxiliary hook steel wire rope;
rotating the U-shaped block by 90 degrees around the Z axis, connecting the auxiliary hook steel wire rope detached in the step three with a third hanging ring group and a fourth hanging ring group, keeping the main hook steel wire rope still, pulling the auxiliary hook steel wire rope upwards, and turning the U-shaped block into a normal state;
placing the normal total section on the total assembly platform, and dismantling the main hook steel wire rope and the auxiliary hook steel wire rope;
and step six, connecting two lifting rings outside the first lifting ring group and the third lifting ring group with one crane, connecting two lifting rings outside the second lifting ring group and the fourth lifting ring group with the other crane, pulling up the U-shaped total section by a steel wire rope of the crane, reversely rotating the total section by 90 degrees around the Z axis, and placing the total section on a ship platform for carrying.
Preferably, in the first step, the hoisting rings of the first hoisting ring group, the second hoisting ring group, the third hoisting ring group and the fourth hoisting ring group are installed at the connection part of the deck and the longitudinal bulkhead segment.
In the first step, the tongue and groove of the deck extends out of the longitudinal bulkhead by 700 mm, and a round pocket-proof pipe is arranged at the tongue and groove of the deck.
And in the fifth step, a supporting circular pipe is arranged at the lower opening of the U-shaped general section and is placed on the general assembly platform.
As a preferable technical scheme, in the sixth step, a connecting line of the two hanging rings outside the first hanging ring group and the hanging ring of the third hanging ring group is parallel to a gravity center extension line of the deck, and a connecting line of the two hanging rings outside the second hanging ring group and the hanging ring of the fourth hanging ring group is parallel to the gravity center extension line of the deck.
As a preferred technical scheme, in the first step, the a-shaped suspension rings of the first suspension ring group and the second suspension ring group are located on the same straight line, and the a-shaped suspension rings of the third suspension ring group and the fourth suspension ring group are located on the same straight line.
Compared with the prior art, the invention has the following technical effects:
(1) the invention is beneficial to controlling the overweight problem of the crane in the turning process of the block, improves the hoisting safety, and simultaneously, directly adopts the block to carry the hoisting ring when the block rotates for the second time, thereby being beneficial to reducing the field workload.
(2) The invention adopts the crane at the same side as the main hook for turning over, thereby avoiding the risk of overweight of the crane in the turning over process of the block, and meanwhile, the proposal can be commonly used for 2 berths.
Drawings
Fig. 1 is a perspective view of the hoisting of a U-shaped block section of the invention.
Fig. 2 is a plan view of a hoisting deck of the U-shaped block of the present invention.
Fig. 3 is a layout diagram of a fifth hoisting ring group for hoisting a U-shaped total section.
FIG. 4 is a schematic view of the U-shaped block of the present invention after a first rotation.
FIG. 5 is a schematic view of the U-shaped block of the present invention after a second rotation.
Fig. 6 is a structural schematic diagram of a C-shaped hanging ring.
Element number description: the deck comprises a deck 1, a longitudinal bulkhead subsection 2, a first lifting ring group 3, a second lifting ring group 4, a third lifting ring group 5, a fourth lifting ring group 6, a fifth lifting ring group 7, an anti-pocket circular pipe 8 and a supporting circular pipe 9.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 6. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The invention provides a hoisting method for a regular U-shaped main section of a chemical tanker, which comprises the following steps:
step one, under the state that a U-shaped block is in a reverse state, a first lifting ring group 3 and a second lifting ring group 4 are installed on one side, close to a port side, of a deck 1, the first lifting ring group 3 comprises four A-shaped lifting rings, the second lifting ring group 4 comprises four A-shaped lifting rings, the first lifting ring group 3 and the second lifting ring group 4 are symmetrically arranged along the center line of the deck 1, and the center line of the deck 1 is perpendicular to the side direction of the port side of the U-shaped block; a third lifting ring group 5 and a fourth lifting ring group 6 are arranged on one side of the deck 1 close to the starboard, the third lifting ring group 5 comprises two A-shaped lifting rings, the fourth lifting ring group 6 comprises two A-shaped lifting rings, and the third lifting ring group 5 and the fourth lifting ring group 6 are symmetrical along the center line of the deck 1; a fifth lifting ring group 7 is arranged on one side of the longitudinal bulkhead section 2 close to the starboard, the fifth lifting ring group 7 is arranged at one end of the longitudinal bulkhead section 2 far away from the deck 1, and the fifth lifting ring group 7 comprises 4C-shaped lifting rings. Because the tongue-and-groove of the deck 1 of the U-shaped total section extends 700 mm out of the longitudinal bulkhead, in order to ensure that the installation position of the hoisting ring has enough strength, the first hoisting ring group 3, the second hoisting ring group 4, the third hoisting ring group 5 and the fourth hoisting ring group 6 are arranged at the connection part of the deck 1 and the longitudinal bulkhead section 2. Meanwhile, in order to avoid the situation that the rabbet of the deck 1 is damaged by the steel wire rope at the main hook hanging ring when the block is turned over, a pocket-proof circular tube 8 needs to be arranged at the rabbet of the deck 1. According to the overall assembly site arrangement of the site, in order to facilitate the two berths to adopt the same scheme, the cranes of the main hook all adopt the cranes on the same side. In order to avoid excessive welding of the lifting ring and the stainless steel plate and avoid interference with the installation position of the lower opening connecting circular pipe, the C-shaped lifting ring is arranged at the position close to the ship board of the longitudinal bulkhead. The A-shaped hanging rings of the first hanging ring group 3 and the second hanging ring group 4 are positioned on the same straight line, and the A-shaped hanging rings of the third hanging ring group 5 and the fourth hanging ring group 6 are positioned on the same straight line.
And step two, connecting one group of steel wire ropes with the first lifting ring group 3 and the first lifting ring group 3 to serve as a main hook for turning over the block, and connecting the other group of steel wire ropes with the fifth lifting ring group 7 to serve as an auxiliary hook for turning over the block.
And step three, pulling the main hook steel wire rope and the auxiliary hook steel wire rope upwards, lifting the U-shaped main section to a proper position, keeping the auxiliary hook steel wire rope stationary, continuously pulling the main hook steel wire rope upwards until the hanging point of the main hook is vertical to the gravity center of the U-shaped main section and the ground, and releasing the auxiliary hook steel wire rope.
And step four, rotating the U-shaped block by 90 degrees around the Z axis, connecting the auxiliary hook steel wire rope detached in the step three with the third hanging ring group 5 and the fourth hanging ring group 6, keeping the main hook steel wire rope still, pulling the auxiliary hook steel wire rope upwards, and turning the U-shaped block into a normal state. The connecting lines of the two hanging rings outside the first hanging ring group 3 and the hanging rings of the third hanging ring group 5 are parallel to the center line of the deck 1, and the connecting lines of the two hanging rings outside the second hanging ring group 4 and the hanging rings of the fourth hanging ring group 6 are parallel to the center line of the deck 1.
And step five, arranging a supporting circular pipe 9 at the lower opening of the U-shaped main section, placing the supporting circular pipe 9 on the general assembly platform, and detaching the main hook steel wire rope and the auxiliary hook steel wire rope.
And step six, connecting two lifting rings outside the first lifting ring group 3 and the third lifting ring group 5 with one crane, connecting two lifting rings outside the second lifting ring group 4 and the fourth lifting ring group 6 with the other crane, pulling up the U-shaped block by a steel wire rope of the crane, reversely rotating the block by 90 degrees around the Z axis, and placing the block on a ship platform for carrying.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A hoisting method for a regular U-shaped total section of a chemical tanker is characterized by comprising the following steps:
the method comprises the following steps that firstly, under the state that a U-shaped main section is in an inverted state, a first hanging ring group and a second hanging ring group are installed on one side, close to a port side, of a deck, the first hanging ring group comprises four A-shaped hanging rings, the second hanging ring group comprises four A-shaped hanging rings, the first hanging ring group and the second hanging ring group are symmetrically arranged along a gravity center extension line of the deck, and the gravity center extension line of the deck is perpendicular to the side direction of the port side of the U-shaped main section; a third hoisting ring group and a fourth hoisting ring group are arranged on one side of the deck close to the starboard, the third hoisting ring group comprises two A-shaped hoisting rings, the fourth hoisting ring group comprises two A-shaped hoisting rings, and the third hoisting ring group and the fourth hoisting ring group are symmetrical along the gravity center extension line of the deck; a fifth hoisting ring group is arranged on one side, close to the starboard, of the longitudinal bulkhead section, is positioned at one end, far away from the deck, of the longitudinal bulkhead section, and comprises 4C-shaped hoisting rings;
step two, connecting one group of steel wire ropes with a first lifting ring group and a first lifting ring group to serve as a main hook for turning over of the total section, and connecting the other group of steel wire ropes with a fifth lifting ring group to serve as an auxiliary hook for turning over of the total section;
pulling the main hook steel wire rope and the auxiliary hook steel wire rope upwards, lifting the U-shaped main section to a proper position, keeping the auxiliary hook steel wire rope stationary, and continuously pulling the main hook steel wire rope upwards until the hanging point of the main hook is vertical to the gravity center of the U-shaped main section and the ground, and releasing the auxiliary hook steel wire rope;
rotating the U-shaped block by 90 degrees around the Z axis, connecting the auxiliary hook steel wire rope detached in the step three with a third hanging ring group and a fourth hanging ring group, keeping the main hook steel wire rope still, pulling the auxiliary hook steel wire rope upwards, and turning the U-shaped block into a normal state;
placing the normal total section on the total assembly platform, and dismantling the main hook steel wire rope and the auxiliary hook steel wire rope;
and step six, connecting two lifting rings outside the first lifting ring group and the third lifting ring group with one crane, connecting two lifting rings outside the second lifting ring group and the fourth lifting ring group with the other crane, pulling up the U-shaped total section by a steel wire rope of the crane, reversely rotating the total section by 90 degrees around the Z axis, and placing the total section on a ship platform for carrying.
2. The hoisting method for the chemical tanker regular U-shaped total section as recited in claim 1, wherein in the first step, the hoisting rings of the first hoisting ring group, the second hoisting ring group, the third hoisting ring group and the fourth hoisting ring group are installed at the connecting part of the deck and the longitudinal bulkhead section.
3. The hoisting method for the regular U-shaped block of the chemical tanker according to claim 1, wherein in the first step, the deck rabbet extends out of the longitudinal bulkhead by 700 mm, and a pocket-proof circular tube is arranged at the deck rabbet.
4. The hoisting method for the regular U-shaped total section of the chemical tanker according to claim 1, wherein in the fifth step, a supporting circular pipe is arranged at the lower opening of the U-shaped total section, and the supporting circular pipe is placed on the total assembly platform.
5. The hoisting method for the regular U-shaped total section of the chemical tanker according to claim 1, wherein in the sixth step, the connecting line of the two hoisting rings outside the first hoisting ring group and the hoisting rings of the third hoisting ring group is parallel to the extended line of the center of gravity of the deck, and the connecting line of the two hoisting rings outside the second hoisting ring group and the hoisting rings of the fourth hoisting ring group is parallel to the extended line of the center of gravity of the deck.
6. The hoisting method for the chemical tanker regular U-shaped total section as recited in claim 1, wherein in the first step, the A-shaped hoisting rings of the first hoisting ring group and the second hoisting ring group are located on the same straight line, and the A-shaped hoisting rings of the third hoisting ring group and the fourth hoisting ring group are located on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110720572.7A CN113968316B (en) | 2021-06-28 | 2021-06-28 | Hoisting method for regular U-shaped headquarter of chemical tanker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110720572.7A CN113968316B (en) | 2021-06-28 | 2021-06-28 | Hoisting method for regular U-shaped headquarter of chemical tanker |
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| Publication Number | Publication Date |
|---|---|
| CN113968316A true CN113968316A (en) | 2022-01-25 |
| CN113968316B CN113968316B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110720572.7A Active CN113968316B (en) | 2021-06-28 | 2021-06-28 | Hoisting method for regular U-shaped headquarter of chemical tanker |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709785A (en) * | 2005-06-20 | 2005-12-21 | 上海外高桥造船有限公司 | Sectional hoisting method |
| DE102008023272B3 (en) * | 2008-05-13 | 2009-10-22 | Grund Consulting Ag | Lifting/turning system for condensation modules, at a power station, has cranes acting on cross beams with adapters at the top and side of the module |
| KR20140081934A (en) * | 2012-12-18 | 2014-07-02 | 현대중공업 주식회사 | Method of turn over for block of ship |
| WO2014117324A1 (en) * | 2013-01-29 | 2014-08-07 | 中国十七冶集团有限公司 | Method of loading and unloading slender-type pressure connection strip and apparatus therefor |
| CN108946474A (en) * | 2018-06-14 | 2018-12-07 | 沪东中华造船(集团)有限公司 | A kind of turn-over method of two phase stainless steel p-type block |
| CN109319041A (en) * | 2018-10-10 | 2019-02-12 | 上海江南长兴造船有限责任公司 | A method of for chemical tanker, irregularly U-shaped block is turned over |
| CN111017843A (en) * | 2019-11-15 | 2020-04-17 | 沪东中华造船(集团)有限公司 | Turning-over hoisting method for rudder horn subsection |
-
2021
- 2021-06-28 CN CN202110720572.7A patent/CN113968316B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709785A (en) * | 2005-06-20 | 2005-12-21 | 上海外高桥造船有限公司 | Sectional hoisting method |
| DE102008023272B3 (en) * | 2008-05-13 | 2009-10-22 | Grund Consulting Ag | Lifting/turning system for condensation modules, at a power station, has cranes acting on cross beams with adapters at the top and side of the module |
| KR20140081934A (en) * | 2012-12-18 | 2014-07-02 | 현대중공업 주식회사 | Method of turn over for block of ship |
| WO2014117324A1 (en) * | 2013-01-29 | 2014-08-07 | 中国十七冶集团有限公司 | Method of loading and unloading slender-type pressure connection strip and apparatus therefor |
| CN108946474A (en) * | 2018-06-14 | 2018-12-07 | 沪东中华造船(集团)有限公司 | A kind of turn-over method of two phase stainless steel p-type block |
| CN109319041A (en) * | 2018-10-10 | 2019-02-12 | 上海江南长兴造船有限责任公司 | A method of for chemical tanker, irregularly U-shaped block is turned over |
| CN111017843A (en) * | 2019-11-15 | 2020-04-17 | 沪东中华造船(集团)有限公司 | Turning-over hoisting method for rudder horn subsection |
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| CN113968316B (en) | 2024-05-10 |
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