CN111392594A - Hoisting method for bulk carrier cabin block and bulk carrier built by using same - Google Patents
Hoisting method for bulk carrier cabin block and bulk carrier built by using same Download PDFInfo
- Publication number
- CN111392594A CN111392594A CN202010214231.8A CN202010214231A CN111392594A CN 111392594 A CN111392594 A CN 111392594A CN 202010214231 A CN202010214231 A CN 202010214231A CN 111392594 A CN111392594 A CN 111392594A
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- Prior art keywords
- hoisting
- bulk carrier
- cabin
- block
- equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ship Loading And Unloading (AREA)
Abstract
The invention discloses a hoisting method of a bulk carrier cabin block and a bulk carrier built by using the same, wherein the hoisting method comprises the following steps: s1, in the total section stage, installing part of outfitting equipment to the bulk carrier cabin total section, and adjusting the rest part of outfitting equipment to the dock stage for installation, so that the weight of the bulk carrier cabin total section is not more than the maximum lifting capacity of a single gantry crane; s2, hoisting the bulk carrier cabin block to a dock by using a single gantry crane; and S3, in the dock stage, hoisting the rest outfitting equipment to the cabin block of the bulk carrier by using hoisting equipment and installing the outfitting equipment. The method has the advantages that part of equipment installed in the block is adjusted to be installed in the dock stage, the weight of the bulk carrier cabin block is reduced, the hoisting requirement of a single gantry crane is met, the original scheme of using two gantry cranes for combined hoisting is simplified into one gantry crane, the preparation time is shortened, the crane resources are saved, and the hoisting efficiency is improved.
Description
Technical Field
The invention relates to a hoisting method of a bulk carrier cabin total section and a bulk carrier built by using the same.
Background
At present, in order to improve shipbuilding speed, a plurality of segments are built at the same time, then the segments are assembled into a total segment, and finally the total segment is hoisted to a dock by using a gantry crane for final assembly. When the total section is hoisted, the hoisting weight of the large gantry crane needs to be considered, the total section number is enlarged, the hoisting number in a dock is reduced, and the operation speed is improved.
In the construction of an 18-ten-thousand-ton bulk carrier, the weight of a cabin trimmable panel total section mainly includes two parts, i.e., a structural weight and an outfitting weight, which is mainly the total weight of large outfitting equipment installed on a three-deck. The weight of the block exceeds the maximum lifting capacity of a single gantry crane, so that two gantry cranes are required to cooperate to carry out hoisting. Therefore, the hoisting scheme needs to be provided with more hoisting points and hoisting equipment, so that the preparation time is long, more crane resources are occupied, and the hoisting efficiency is low.
Disclosure of Invention
The invention aims to overcome the defect of low hoisting efficiency of hoisting a bulk carrier engine room block in the prior art, and provides a hoisting method of the bulk carrier engine room block and a bulk carrier built by using the same.
The invention solves the technical problems through the following technical scheme:
a hoisting method of a bulk carrier cabin block comprises the following steps:
s1, in the total section stage, installing part of outfitting equipment to the bulk carrier cabin total section, and adjusting the rest part of outfitting equipment to the dock stage for installation, so that the weight of the bulk carrier cabin total section is not more than the maximum lifting capacity of a single gantry crane;
s2, hoisting the bulk carrier cabin block to a dock by using a single gantry crane;
and S3, in the dock stage, hoisting the rest outfitting equipment to the bulk carrier cabin block by utilizing hoisting equipment and installing the outfitting equipment.
In the scheme, part of equipment installed in the block is adjusted to be installed in the dock stage, the weight of the block of the bulk carrier cabin is reduced, the requirement of a single gantry crane is met, the scheme of originally utilizing two gantry cranes for linkage is simplified into one gantry crane, the installation quantity of hoisting codes and corresponding hoisting equipment are reduced, crane resources and preparation time are saved, and the hoisting efficiency is improved.
Preferably, the step S1 further includes the steps of:
s11, in the main section stage, completely installing the base of the rest outfitting equipment on the main section of the bulk carrier cabin;
the step S3 further includes the steps of: and S31, mounting the remaining part of outfitting equipment and the reserved base.
In this scheme, the base is connected with the deck face to some remaining outfitting equipment all, and considering that the base is less to the total amount influence in bulk carrier cabin total section, consequently installed the base in the total section stage, at dock stage erection equipment, can protect the paint in dock stage.
Preferably, after the step S11, the step S1 further includes the steps of:
s12, arranging at least three lifting points on the top surface of the bulk carrier cabin total section at intervals, enabling the at least three lifting points to be located above the gravity center of the bulk carrier cabin total section, enabling the connecting line of each lifting point to enclose a closed area, and enabling the projection of the gravity center along the vertical direction to be located in the middle of the closed area.
According to the scheme, a single gantry crane is adopted, at least three lifting points are arranged on the top surface of the cargo ship cabin block, the center of gravity can be arranged in a lifting area formed by connecting lines of the lifting points, the overturning of the bulk cargo ship cabin block is avoided, the lifting points are arranged above the center of gravity of the bulk cargo ship cabin block, each connecting line of the lifting points forms a closed area, and the projection of the center of gravity to the lifting area is located in the middle of the lifting area.
Preferably, in step S12, the projection of the center of gravity in the vertical direction is located at the center within the closed area.
In the scheme, the center of the gravity center projection is arranged in the center of the closed area formed by the connecting lines of the lifting points, so that the stability of the bulk cargo ship cabin block during lifting can be ensured, the deflection of the bulk cargo ship cabin block during lifting is avoided, and the safety of equipment is improved.
Preferably, after the step S12, the step S1 further includes the steps of:
and S13, connecting a crane at the position of each lifting point.
In the scheme, after the lifting point of the cabin block of the bulk carrier is selected, the lifting horse is welded at the lifting point and used for hanging the steel wire rope hook, and after the lifting is finished, the lifting horse is detached.
Preferably, after the step S13, the step S1 further includes the steps of:
and S14, connecting each hoisting horse to a hoisting row through a steel wire rope, and then connecting the hoisting row to the gantry crane.
In the scheme, the hanging row is arranged between the gantry crane and the hanging horses, a plurality of hanging horses can be connected to the hanging row, and then the hanging row is connected to the gantry crane, so that the hanging is convenient.
Preferably, the outfitting equipment comprises an SCR denitration reactor and a generator.
In this scheme, SCR denitration reactor and generator belong to great equipment, and its weight is big, are convenient for adjust the weight in bulk cargo cabin total section, and these equipment all have the base to be connected with the deck simultaneously, can not destroy the paint in dock stage when later stage installation.
Preferably, in the step S3, the hoisting device is a gantry crane or a gantry crane.
In this embodiment, in step S3, the remaining outfitting equipment is relatively light in weight and can be hoisted by using a gantry crane with a small hoisting capacity, so as to increase the hoisting speed, or can be hoisted by using a gantry crane.
Preferably, the bulk carrier cabin total section is a cabin trimmable board total section.
In this scheme, the great equipment of installation is more on the three deck block sections in cabin, is convenient for select the adjustment installation stage according to the block total volume to satisfy the hoist and mount requirement of single portal crane, improve hoist and mount efficiency.
A bulk carrier is hoisted by the hoisting method of the cabin block of the bulk carrier.
In the scheme, the scheme of the two gantry cranes combined crane is optimized to be a single gantry crane, so that the hoisting resources are saved, the preparation time for hoisting is shortened, the hoisting efficiency is improved, and further the economic benefit is improved.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows: according to the invention, part of equipment installed in the block is adjusted to be installed in the dock stage, so that the weight of the bulk carrier cabin block is reduced, the hoisting requirement of a single gantry crane is met, the original scheme of using two gantry cranes for combined hoisting is simplified into one gantry crane, the preparation time is reduced, the crane resources are saved, and the hoisting efficiency is improved.
Drawings
Fig. 1 is a flow chart of a method for hoisting a cabin block of a bulk carrier according to a preferred embodiment of the invention.
Fig. 2 is a schematic structural diagram of a cabin block of a bulk carrier hoisted by two gantry cranes according to a preferred embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a cabin block of a single gantry crane for hoisting a bulk carrier according to a preferred embodiment of the invention.
Fig. 4 is a schematic structural diagram of a hoisted SCR denitration reactor according to a preferred embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a hoisting generator according to a preferred embodiment of the invention.
Description of reference numerals:
gantry crane 10
Dock 20
Bulk carrier cabin block 1
Hanging horse 2
Detailed Description
The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1-5, the invention discloses a hoisting method of a bulk carrier cabin block, which comprises the following steps: s1, in the block stage, installing part of outfitting equipment to the bulk carrier cabin block 1, and adjusting the rest outfitting equipment to the dock stage for installation, so that the weight of the bulk carrier cabin block 1 is not more than the maximum lifting capacity of the single gantry crane 10; s2, hoisting the bulk carrier cabin block 1 to the dock 20 by using a single gantry crane 10; and S3, in the dock stage, hoisting the rest outfitting equipment to the bulk carrier cabin block 1 by using the hoisting equipment and installing.
In the embodiment, as shown in fig. 2 and 3, part of the equipment installed in the block is adjusted to be installed in the dock stage, so that the weight of the block 1 of the bulk carrier cabin is reduced, the hoisting requirement of a single gantry crane 10 is met, the original scheme of using two gantry cranes 10 for combined hoisting is simplified into one gantry crane 10, the installation number of hoisting codes is reduced, the crane resources and the preparation time are saved, and the hoisting efficiency is improved.
In this embodiment, step S1 further includes the steps of: s11, in the block stage, completely installing the base of the rest outfitting equipment on the bulk carrier cabin block 1; the step S3 further includes the steps of: and S31, mounting the remaining part of outfitting equipment and the reserved base. Considering that the rest outfitting equipment is provided with a base connected with the deck surface and the base has small influence on the total weight of the bulk carrier cabin block 1, the base is installed in the block stage, and the equipment is installed in the dock stage, so that the paint in the dock stage can be protected.
After step S11, step S1 further includes the steps of: s12, arranging at least three lifting points on the top surface of the bulk carrier cabin main section 1 at intervals, enabling the at least three lifting points to be located above the gravity center of the bulk carrier cabin main section 1, enabling the connecting line of each lifting point to enclose a closed area, and enabling the projection of the gravity center along the vertical direction to be located in the middle of the closed area.
In the embodiment, as shown in fig. 3, a single gantry crane 10 is adopted, at least three lifting points are arranged on the bulk carrier cabin total section 1, the center of gravity can be arranged in a lifting area enclosed by connecting lines of the lifting points, the bulk carrier cabin total section 1 is prevented from overturning, the lifting points are arranged above the center of gravity of the bulk carrier cabin total section 1, each connecting line of the lifting points encloses a closed area, and the projection of the center of gravity to the lifting area is positioned in the middle of the lifting area.
In step S12, the projection of the center of gravity in the vertical direction is located at the center within the closed region. The center of the gravity center projection is arranged in the center of the closed area formed by the connecting lines of the lifting points, so that the stability of the bulk cargo ship cabin main section 1 during lifting can be ensured, the deflection of the bulk cargo ship cabin main section 1 during lifting is avoided, and the safety of the equipment is improved.
After step S12, step S1 further includes the steps of: and S13, connecting the lifting horse 2 at the position of each lifting point. The hoisting horse 2 is used for hanging the steel wire rope hook, and after the hoisting is finished, the hoisting horse 2 is dismantled. The horse layout is seen in fig. 3. After step S13, step S1 further includes the steps of: and S14, connecting each crane 2 to a hoist through a steel wire rope, and then connecting the hoist to the gantry crane 10. A hanging row is arranged between the gantry crane 10 and the hanging horses 2, a plurality of hanging horses 2 can be connected to the hanging row, then the hanging row is connected to the gantry crane 10, and the hanging row is arranged to facilitate hanging. The hoist and wire rope are not shown in the figure.
In this embodiment, as shown in fig. 4 and 5, the outfitting includes an SCR denitration reactor 3 and generators 4, and the number of the generators 4 is three. The SCR denitration reactor 3 and the generator 4 belong to larger equipment, the weight of the equipment is large, the weight of the cabin block 1 of the bulk carrier can be adjusted conveniently, meanwhile, the equipment is provided with a base and a deck which are connected, and paint in a dock stage cannot be damaged during later installation.
In step S3, the hoisting device is a gantry crane or a gantry crane 10. The weight of the rest outfitting equipment is relatively small, and the outfitting equipment can be hoisted by using a portal crane with small hoisting capacity so as to improve the hoisting speed, and the portal crane 10 can also be used.
In this embodiment, the number of the large devices installed on the three-deck block of the nacelle is large, so that the installation stage can be conveniently selected and adjusted according to the total amount of the block, the hoisting requirement of a single gantry crane 10 can be met, and the hoisting efficiency can be improved.
The invention also discloses a bulk carrier which is hoisted by the hoisting method of the cabin block of the bulk carrier. The scheme of the combined hoisting of the two gantry cranes 10 is optimized to be a single gantry crane 10, so that hoisting resources are saved, the preparation time for hoisting is shortened, the hoisting efficiency is improved, and further the economic benefit is improved.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A hoisting method of a bulk carrier cabin block is characterized by comprising the following steps:
s1, in the total section stage, installing part of outfitting equipment to the bulk carrier cabin total section, and adjusting the rest part of outfitting equipment to the dock stage for installation, so that the weight of the bulk carrier cabin total section is not more than the maximum lifting capacity of a single gantry crane;
s2, hoisting the bulk carrier cabin block to a dock by using a single gantry crane;
and S3, in the dock stage, hoisting the rest outfitting equipment to the bulk carrier cabin block by utilizing hoisting equipment and installing the outfitting equipment.
2. The method for hoisting the total section of the bulk carrier cabin according to claim 1, wherein the step S1 further comprises the steps of:
s11, in the main section stage, completely installing the base of the rest outfitting equipment on the main section of the bulk carrier cabin;
the step S3 further includes the steps of: and S31, mounting the remaining part of outfitting equipment and the reserved base.
3. The method for erecting a total section of a bulk carrier nacelle according to claim 2, wherein said step S1 further comprises the step of, after said step S11:
s12, arranging at least three lifting points on the top surface of the bulk carrier cabin total section at intervals, enabling the at least three lifting points to be located above the gravity center of the bulk carrier cabin total section, enabling the connecting line of each lifting point to enclose a closed area, and enabling the projection of the gravity center along the vertical direction to be located in the middle of the closed area.
4. The method for hoisting a total block of a bulk carrier nacelle according to claim 3, wherein in step S12, the vertical projection of the center of gravity is located at the center of the enclosed area.
5. The method for erecting a total block of bulk carrier cabins according to claim 3, wherein said step S1 further comprises the step of, after said step S12:
and S13, connecting a crane at the position of each lifting point.
6. The method for erecting a total section of a bulk carrier nacelle according to claim 5, wherein said step S1 further comprises the step of, after said step S13:
and S14, connecting each hoisting horse to a hoisting row through a steel wire rope, and then connecting the hoisting row to the gantry crane.
7. The method for hoisting the total cabin segment of the bulk carrier according to claim 1, wherein the outfitting equipment comprises an SCR denitration reactor and a generator.
8. The method for hoisting the total cabin segment of the bulk carrier according to claim 1, wherein in the step S3, the hoisting equipment is a gantry crane or a gantry crane.
9. The method for hoisting the total section of the bulk carrier cabin according to any one of claims 1 to 8, wherein the total section of the bulk carrier cabin is a cabin trimmable total section.
10. A bulk carrier, characterized in that it is hoisted by the method of hoisting a cabin block of a bulk carrier according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010214231.8A CN111392594A (en) | 2020-03-24 | 2020-03-24 | Hoisting method for bulk carrier cabin block and bulk carrier built by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010214231.8A CN111392594A (en) | 2020-03-24 | 2020-03-24 | Hoisting method for bulk carrier cabin block and bulk carrier built by using same |
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| CN111392594A true CN111392594A (en) | 2020-07-10 |
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| CN202010214231.8A Pending CN111392594A (en) | 2020-03-24 | 2020-03-24 | Hoisting method for bulk carrier cabin block and bulk carrier built by using same |
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Cited By (3)
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| CN112319725A (en) * | 2020-09-24 | 2021-02-05 | 沪东中华造船(集团)有限公司 | Method for hoisting and docking annular main section of fishery scientific investigation ship |
| CN113581414A (en) * | 2021-09-03 | 2021-11-02 | 上海外高桥造船有限公司 | Ship hoisting structure and hoisting system |
| CN115158538A (en) * | 2022-08-11 | 2022-10-11 | 上海外高桥造船有限公司 | Double-layer bottom cabin and double-layer bottom hoisting method |
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Application publication date: 20200710 |