CN112478085A - Positioning method for single-shell fuel tank block - Google Patents
Positioning method for single-shell fuel tank block Download PDFInfo
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- CN112478085A CN112478085A CN202011186038.4A CN202011186038A CN112478085A CN 112478085 A CN112478085 A CN 112478085A CN 202011186038 A CN202011186038 A CN 202011186038A CN 112478085 A CN112478085 A CN 112478085A
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- longitudinal
- slide block
- fuel
- transverse
- guide
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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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- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a positioning method for a single-shell fuel tank total section, which comprises the following steps: s1, installing the guide slide block on the fuel cabin before the fuel cabin is hoisted; s2, determining the relative position of the guide slide block on the fuel compartment; s3, installing the corresponding slide block base on the double-layer bottom of the ship body according to the relative position; s4, hoisting the fuel cabin in place, and adjusting the position of the fuel cabin to align the alignment line on the guide slide block with the alignment line on the corresponding slide block base; and S5, assembling and welding after the fuel tank is positioned. The invention adopts the positioning slide block for positioning, has simple and convenient tool, simple operation and convenient site construction.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a positioning method for a single-shell fuel tank block, which belongs to a fuel tank refitting project.
Background
The single-shell fuel tank block is weak in structure and is easy to deform in the hoisting and positioning processes, so that a quick positioning method needs to be found to reduce risks in the fuel tank block positioning process. For large-scale total sections/ring sections, common positioning methods include: 1. a plurality of synchronous jacking devices are adopted to shift and position the block; 2. and (4) hoisting the block by using large-scale hoisting equipment, and positioning by using a three-dimensional total station. However, when the single-shell fuel tank block is weak in lower opening structure and needs to be hung into the tank, the single-shell fuel tank block cannot be positioned by the method.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a positioning method for a single-shell fuel tank total section, and partial embodiments of the invention can adopt an auxiliary positioning slide block to quickly position the fuel tank total section aiming at the characteristics that the single-shell fuel tank total section is weak in structure and needs to be integrally hung in a tank, thereby reducing the positioning time of the fuel tank, reducing the deformation risk in the positioning process and improving the production efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for positioning a single hull bunker section, said method comprising the steps of: s1, installing the guide slide block on the fuel cabin before the fuel cabin is hoisted; s2, determining the relative position of the guide slide block on the fuel compartment; s3, installing the corresponding slide block base on the double-layer bottom of the ship body according to the relative position; s4, hoisting the fuel cabin in place, and adjusting the position of the fuel cabin to align the alignment line on the guide slide block with the alignment line on the corresponding slide block base; and S5, assembling and welding after the fuel tank is positioned.
Preferably, step S1 includes that the guiding sliding block is installed at a lower opening of a stringer of the fuel compartment, wherein the guiding sliding block includes: 2 longitudinal guide sliding blocks for adjusting the longitudinal position of the fuel chamber and 3 transverse guide sliding blocks for adjusting the transverse position of the fuel chamber.
Preferably, step S1 includes that the longitudinal guide sliders are disposed on the left and right sides of the stringers, and the transverse guide sliders are disposed at the front end or the rear end of the stringers.
Preferably, step S1 includes installing a reinforcing channel on the stringer, wherein the reinforcing channel is used for ensuring the strength of the stringer where the longitudinal guide slider is installed.
Preferably, step S1 includes installing triangular plate reinforcements on both sides of the longitudinal girder in order to ensure the strength of the longitudinal girder where the lateral guide slider is installed.
Preferably, step S2 includes measuring the distance from the involution line of the longitudinal guide slider to the inspection line of the fuel tank rib after the longitudinal guide slider is installed.
Preferably, step S3 includes measuring the same distance with the double-layer bottom rib check line as a reference according to the distance between the pair line of the longitudinal guide slider and the fuel compartment rib check line, and taking the measured distance as the longitudinal position of the longitudinal slider base; the distance between the main board of the longitudinal slide block base and the middle longitudinal position is 150mm, and the distance is used as the transverse position of the longitudinal slide block base.
Preferably, step S3 includes attaching the side plates of the transversal slider base to the transversal compartment as the longitudinal position of the transversal slider base; and aligning the butt joint line of the transverse sliding block base with the corresponding longitudinal girder theoretical line as the transverse position of the transverse sliding block base.
Preferably, step S4 includes that detachable adjusting panels connected by spot welding are arranged on the transverse sliding block base panel and the longitudinal sliding block base panel, so as to reduce the influence of the flatness of the double-layer bottom on positioning. In consideration of the flatness of the double-layer bottom of the ship body, movable panels are arranged on the panels of the transverse and longitudinal sliding block bases and are used for leveling the height difference of the double-layer bottom caused by the operation of the ship and reducing the influence of the flatness of the double-layer bottom on positioning.
Preferably, step S4 includes first adjusting the longitudinal position of the fuel compartment such that the line of alignment of the longitudinal guide slider is aligned with the line of alignment of the longitudinal slider base; then the transverse position of the fuel compartment is adjusted to make the butt-joint line of the transverse guide slide block aligned with the theoretical plane of the corresponding longitudinal girder, and then the block is vertically put down along the panel of the guide slide block.
Compared with the prior art, the invention has the beneficial effects that: 1. the positioning slide block is adopted for positioning, so that the tool is simple and convenient to assemble, simple to operate and convenient for site construction; 2. the positioning slide block is provided with the butt joint line, so that the positioning reference can be quickly found, the positioning time is shortened, and the field construction efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view illustrating the installation of a positioning slider on a fuel tank block according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of a positioning slider for a fuel tank block according to an embodiment of the present invention.
Fig. 3 is a partial enlarged view of fig. 1 at a in an embodiment of the present invention.
Fig. 4 is a partial enlarged view of fig. 2 at B in the embodiment of the present invention.
Fig. 5 is a partial enlarged view of fig. 2 at C in the embodiment of the present invention.
Fig. 6 is a longitudinal guide slider in an embodiment of the present invention, wherein a is a front view thereof and b is a side view thereof.
FIG. 7 is a longitudinal slider base in an embodiment of the present invention, where c is a front view and d is a side view thereof.
Fig. 8 is a cross-guide slide in an embodiment of the invention, where e is a front view, f is a side view, and g is a top view.
FIG. 9 is a cross slide base in an embodiment of the present invention, where h is a front view and i is a side view thereof.
FIG. 10 is a combination of a lateral guide slider and a lateral slider base in an embodiment of the present invention, where j is a front view and k is a side view thereof.
1-a fuel compartment; 2-longitudinal guide slide block; 3-longitudinally guiding the sliding block main board; 4-longitudinally guiding the sliding block top plate; 5-longitudinally guiding a slider coaming; 6-longitudinal guide slide block panel; 7-longitudinal slider base; 8-a longitudinal slider base motherboard; 9-longitudinal slider base coaming; 10-longitudinal slider base top plate; 11-longitudinal slider base panel; 12-adjusting plate of longitudinal guide slide block; 14-a transverse guide slide block; 15-a lateral guide slider panel; 16-transverse guide slide block reinforcement; 17-a lateral slider base; 18-a lateral slider base motherboard; 19-lateral slider base top plate; 20-transverse slider base enclosures; 21-a lateral guide slider panel; 22-lateral guide slide adjusting plate; 23-a butt line of the longitudinal guide slider; 24-the involution line of the longitudinal slide block base; 25-a joining line of the transverse slider bases; 26-the line of coincidence of the base of the transverse slide and the line of coincidence of the transverse guide slide.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
1-10, the present embodiment provides a method for positioning a single hull fuel cell block, the method comprising the steps of:
s1, installing guide sliding blocks at the lower opening of the longitudinal girder of the fuel cabin before hoisting the total section, wherein 2 longitudinal sliding blocks for adjusting the longitudinal position of the fuel cabin are arranged, and 3 transverse sliding blocks for adjusting the transverse position of the fuel cabin are arranged. The longitudinal sliding blocks are arranged on two sides of the longitudinal girders, and the transverse guiding sliding blocks are arranged on one side of the longitudinal girders. Mounting a reinforcing channel steel on a longitudinal girder provided with a longitudinal guide sliding block, and mounting a triangular plate on the longitudinal girder provided with a transverse guide sliding block for reinforcement;
s2, after the longitudinal guide slide block is installed, measuring the distance between the involution line and the rib inspection line;
s3, measuring the same distance as the longitudinal position of the longitudinal slide block base according to the distance between the longitudinal guide slide block and the rib detection line, wherein the longitudinal position 150mm in the distance between the main board of the longitudinal slide block base is the transverse position; the side plate of the transverse sliding block base is attached to the transverse bulkhead as the longitudinal position of the transverse sliding block base, and the involution line is aligned with the corresponding longitudinal girder theoretical line as the transverse position of the transverse sliding block base;
s4, firstly, adjusting the longitudinal position of the fuel cabin to align the longitudinal guide slide block with the butt-jointed line on the longitudinal slide block base; then the transverse position of the fuel compartment is adjusted to make the butt-jointed line on the transverse guide slide block aligned with the theoretical surface of the corresponding longitudinal girder, and then the block is slowly put down along the panel of the guide slide block.
And S5, assembling and welding after the fuel tank is positioned.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (10)
1. A method for positioning a single hull tank block, the method comprising the steps of:
s1, installing the guide slide block on the fuel cabin before the fuel cabin is hoisted;
s2, determining the relative position of the guide slide block on the fuel compartment;
s3, installing the corresponding slide block base on the double-layer bottom of the ship body according to the relative position;
s4, hoisting the fuel cabin in place, and adjusting the position of the fuel cabin to align the alignment line on the guide slide block with the alignment line on the corresponding slide block base;
and S5, assembling and welding after the fuel tank is positioned.
2. The method as claimed in claim 1, wherein step S1 includes that the guiding slide block is installed at a lower opening of a stringer of the fuel tank, wherein the guiding slide block includes: 2 longitudinal guide sliding blocks for adjusting the longitudinal position of the fuel chamber and 3 transverse guide sliding blocks for adjusting the transverse position of the fuel chamber.
3. The method as claimed in claim 2, wherein the step S1 includes that the longitudinal guide sliders are disposed at left and right sides of the stringer, and the transverse guide sliders are disposed at a front end or a rear end of the stringer.
4. The method as claimed in claim 3, wherein step S1 includes installing a reinforcing channel on the stringer for ensuring the strength of the stringer where the longitudinally-oriented sliding block is installed.
5. The method as claimed in claim 4, wherein step S1 includes that triangular plate reinforcements are installed on both sides of the longitudinal girder to ensure the strength of the longitudinal girder where the lateral guide slider is installed.
6. The method as claimed in claim 5, wherein the step S2 includes measuring the distance between the alignment line of the longitudinal guide slider and the inspection line of the fuel compartment rib after the longitudinal guide slider is installed.
7. The method as claimed in claim 6, wherein the step S3 includes measuring the same distance with the double-layer bottom rib inspection line as the reference according to the distance between the involution line of the longitudinal guide slider and the fuel compartment rib inspection line as the longitudinal position of the base of the longitudinal slider; the distance between the main board of the longitudinal slide block base and the middle longitudinal position is 150mm, and the distance is used as the transverse position of the longitudinal slide block base.
8. The method as claimed in claim 7, wherein step S3 includes attaching the side panels of the transverse slider base to the bay as a longitudinal position of the transverse slider base; and aligning the butt joint line of the transverse sliding block base with the corresponding longitudinal girder theoretical line as the transverse position of the transverse sliding block base.
9. The method of claim 8, wherein step S4 includes providing removable adjustment panels on the transverse slider base panel and the longitudinal slider base panel that are spot welded to reduce the effect of the flatness of the double bottom on positioning.
10. The method of claim 9 wherein step S4 includes first adjusting the longitudinal position of the fuel compartment to align the mating line of the longitudinally oriented slide with the mating line of the longitudinal slide base; then the transverse position of the fuel compartment is adjusted to make the butt-joint line of the transverse guide slide block aligned with the theoretical plane of the corresponding longitudinal girder, and then the block is vertically put down along the panel of the guide slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186038.4A CN112478085A (en) | 2020-10-30 | 2020-10-30 | Positioning method for single-shell fuel tank block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186038.4A CN112478085A (en) | 2020-10-30 | 2020-10-30 | Positioning method for single-shell fuel tank block |
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| Publication Number | Publication Date |
|---|---|
| CN112478085A true CN112478085A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011186038.4A Pending CN112478085A (en) | 2020-10-30 | 2020-10-30 | Positioning method for single-shell fuel tank block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228943A (en) * | 2021-11-29 | 2022-03-25 | 上海江南长兴造船有限责任公司 | Method for accurately positioning ship single-shell block at wharf |
-
2020
- 2020-10-30 CN CN202011186038.4A patent/CN112478085A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228943A (en) * | 2021-11-29 | 2022-03-25 | 上海江南长兴造船有限责任公司 | Method for accurately positioning ship single-shell block at wharf |
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