CN113978658B - Method for precisely installing low-level toggle plate of liquid cargo tank of containment system - Google Patents
Method for precisely installing low-level toggle plate of liquid cargo tank of containment system Download PDFInfo
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- CN113978658B CN113978658B CN202111440931.XA CN202111440931A CN113978658B CN 113978658 B CN113978658 B CN 113978658B CN 202111440931 A CN202111440931 A CN 202111440931A CN 113978658 B CN113978658 B CN 113978658B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 title claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
- B25H7/045—Devices, e.g. scribers, for marking characterised by constructional details of the marking elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a method for accurately installing a low-level toggle plate of a liquid cargo tank of a containment system, which comprises the following steps: step 1, drawing a low-level toggle plate positioning cross line on a low-level toggle plate mounting surface; step 2, placing a low-level toggle plate positioning template at the position of the cross line, wherein the low-level toggle plate positioning template comprises a square plate body, a right triangle template positioning opening is respectively arranged at the four edge centers of the square plate body, and straight edges of four template positioning openings of the low-level toggle plate positioning template are aligned with the cross line in a superposition manner; then drawing a contour line of the low-level toggle plate positioning opening on the low-level toggle plate mounting surface along the low-level toggle plate positioning opening; step 3, positioning three low-level toggle plates according to the contour lines of the positioning openings of the low-level toggle plates, and performing spot welding fixation on the low-level toggle plates; and 4, welding the lower toggle plate to finish welding. The installation method can ensure the consistent position relationship among three low-level toggle plates of each group, ensure the installation precision of subsequent upright posts and improve the construction quality of ships.
Description
Technical Field
The invention relates to the field of ship construction, in particular to a method for accurately installing a low-level toggle plate of a containment cargo tank.
Background
The lower toggle plate is mainly positioned at the longitudinal angle position of the A/C surface of the No. 1 cargo tank of the No.96 LNG ship containment system, the GTT drawing has special requirements on the strength of the position because the No. 1 cargo tank is positioned at the bow of the ship, the lower toggle plate is a foundation for reinforcing the longitudinal angle, and the subsequent support columns are welded on the lower toggle plate, so that the accurate installation of the lower toggle plate is very important for the construction of the No.96 LNG ship.
Disclosure of Invention
In order to meet the installation precision of the low-level toggle plate, the invention provides a method for accurately installing the low-level toggle plate of a liquid cargo tank of a containment system, and the technical aim of the invention is realized by the following technical scheme:
a method for accurately installing a low-level toggle plate of a liquid cargo tank of a containment system comprises the following steps:
Step 1, drawing a low-level toggle plate positioning cross line on a low-level toggle plate mounting surface;
Step 2, placing a low-level toggle plate positioning template at the position of the cross line, wherein the low-level toggle plate positioning template comprises a square plate body, a right triangle template positioning opening is respectively arranged at the four edge centers of the square plate body, one straight edge of the template positioning opening coincides with the central line of the square plate body, and the low-level toggle plate positioning opening is arranged at the corresponding position of the low-level toggle plate on the template; aligning straight edges of four template positioning openings of the lower toggle plate positioning template with the cross line in a superposition way; then drawing a contour line of the low-level toggle plate positioning opening on the low-level toggle plate mounting surface along the low-level toggle plate positioning opening;
Step 3, positioning three low-level toggle plates according to contour lines of positioning openings of the low-level toggle plates marked on the mounting surface of the low-level toggle plate, and performing spot welding fixation on the low-level toggle plates;
and 4, welding the lower toggle plate to finish welding.
Further, the positioning opening of the lower toggle plate is in a right triangle shape, one corner of the positioning toggle plate is aligned with the right-angle contour line of the positioning opening of the lower toggle plate, and the relative positions of the three lower toggle plates are determined.
Further, a round hole for checking whether the lower toggle plate positioning template is aligned with the center of the reticle is arranged at the center of the lower toggle plate positioning template.
Further, when the lower toggle plate positioning cross line is drawn, the method comprises the following steps:
step 1, at the position of a bulkhead adjacent to a mounting surface of a low-level bracket, the adjacent bulkhead is intersected with the mounting surface of the low-level bracket;
Step 2, placing a scribing template at the intersection position of the adjacent bulkhead and the low-level bracket mounting surface, placing the scribing template by being attached to the adjacent bulkhead and the low-level bracket mounting surface, determining a point on a positioning line of the low-level bracket of the support column from the scribing template, and marking the point on the low-level bracket mounting surface; moving a scribing template, determining another point on a positioning line of the lower bracket of the support column from the scribing template, marking the other point on a mounting surface of the lower bracket, and connecting the two points to mark the positioning line of the lower bracket of the support column;
step 3, drawing a central line of the mounting surface of the low-level toggle plate, and extending the central line to the intersection position of the adjacent bulkhead and the mounting surface of the low-level toggle plate to obtain an O point; and drawing a vertical line along the direction O which is perpendicular to the positioning line of the lower bracket of the support column, moving the vertical line to the longitudinal position line of the support column in the stern direction, wherein the moving distance is the distance between the longitudinal position line of the support column and the central line of the mounting surface of the lower bracket.
Further, the first pillar longitudinal position line is drawn as a reference, and the pillar longitudinal position line adjacent to the first pillar longitudinal position line is obtained by shifting along the pillar lower bracket positioning line; the offset distance is the distance between the longitudinal position lines of two adjacent struts; the longitudinal position line of each pillar is respectively crossed with the positioning line of the lower bracket of the pillar vertically to form a cross line.
Further, the scribing template comprises a template body, wherein the template body comprises two adjacent flat surfaces which are respectively used for being abutted against the adjacent bulkhead and the lower bracket mounting surface; the plate body is also provided with a mark for the position of a positioning line of the lower bracket of the support column; when in use, the two straight surfaces of the plate body are respectively abutted against the adjacent bulkhead and the mounting surface of the lower bracket, and the mark of the position of the positioning line of the lower bracket of the support post is positioned on the mounting surface of the lower bracket.
Compared with the prior art, the method has the beneficial effects that the method can ensure the consistent position relation among the three low-level toggle plates of each group, ensure the precision of the subsequent upright post installation on the three low-level toggle plates and improve the construction quality of ships.
Drawings
FIG. 1 is a schematic drawing of a lower bracket alignment of a strut in accordance with the present invention.
Fig. 2 is a schematic drawing of the longitudinal position line of the strut in the present invention.
Fig. 3 is a schematic view of the lower toggle plate positioning template structure in the present invention.
Fig. 4 is a schematic view of the lower toggle plate positioning of the present invention.
In the figure, a lower toggle plate positioning template is 1; 2. positioning an opening of the template; 3. a lower toggle plate positioning opening; 4. a round hole; 5. a lower toggle plate mounting surface; 6. a lower toggle plate; 7. adjacent bulkheads; 8. a scribing template; 9. a strut longitudinal position line; 10. and a support post lower toggle plate positioning line.
Detailed Description
The technical scheme of the invention is further described below with reference to the specific embodiments:
a method for accurately installing a low-level toggle plate of a liquid cargo tank of a containment system comprises the following steps:
Step 1, drawing a low-level toggle plate positioning cross line on a low-level toggle plate mounting surface;
Step 2, placing a low-level toggle plate positioning template 1 at the position of a cross line, wherein the low-level toggle plate positioning template comprises a square plate body, a right triangle template positioning opening 2 is respectively arranged at the center of four sides of the square plate body, one straight edge of the template positioning opening 2 coincides with the central line of the square plate body, and a low-level toggle plate positioning opening 3 is arranged at the relative position of the low-level toggle plate positioning template 1 corresponding to the low-level toggle plate; the center of the lower toggle plate positioning template 1 is also provided with a round hole 4 for checking whether the lower toggle plate positioning template is aligned with the center of the reticle; the straight edges of the four template positioning openings 2 of the lower toggle plate positioning template are overlapped and aligned with the cross line; then drawing a contour line of the low-level toggle positioning opening on the low-level toggle mounting surface 5 along the low-level toggle positioning opening 3; the positioning opening of the lower toggle plate is in a right triangle shape.
Step 3, positioning three low-level toggle plates according to the contour lines of the positioning openings of the low-level toggle plates marked on the low-level toggle plate mounting surface 5, aligning one corner of the positioning toggle plate 6 with the right-angle contour lines of the positioning openings of the low-level toggle plates as shown in fig. 4, determining the relative positions of the three low-level toggle plates, and performing spot welding fixation on the low-level toggle plates;
and 4, welding the lower toggle plate 6 to finish welding.
When drawing the low level toggle plate positioning cross line, the method comprises the following steps:
step 1, in a position adjacent to the bulkhead 7 of the lower bracket mounting surface 5, the adjacent bulkhead 7 is intersected with the lower bracket mounting surface 5, as shown in fig. 1-2;
Step 2, placing a scribing template 8 at the intersection position of the adjacent bulkhead and the mounting surface of the low-level toggle plate, wherein the scribing template 8 comprises a plate body, and the plate body comprises two adjacent flat surfaces which are respectively used for being abutted against the adjacent bulkhead and the mounting surface of the low-level toggle plate; the plate body is also provided with a mark for the position of a positioning line of the lower bracket of the support column; when in use, the two straight surfaces of the plate body are respectively abutted against the adjacent bulkhead 7 and the lower bracket mounting surface 5, and the mark of the position of the positioning line of the lower bracket of the support post is positioned on the lower bracket mounting surface.
Moving the scribing template 8, determining another point on the positioning line of the lower bracket of the support column from the scribing template, marking the other point on the mounting surface of the lower bracket, and connecting the two points to scribe the positioning line 10 of the lower bracket of the support column;
Step 3, drawing a central line R2 of the mounting surface of the low-level toggle plate, and extending the central line to the intersection position of the adjacent bulkhead and the mounting surface of the low-level toggle plate to obtain an O point; and drawing a vertical line along the direction O which is perpendicular to the positioning line of the lower bracket of the support, and shifting the vertical line to the stern direction to obtain a support longitudinal position line 9 closest to the central line R2, wherein the shifting distance is the distance between the support longitudinal position line and the central line of the mounting surface of the lower bracket, and the distance is 340.1mm in the embodiment, so as to finish drawing a cross line.
And taking the column longitudinal position line 9 nearest to the central line R2 as a reference, shifting 1245.4mm along the column lower bracket positioning line to obtain a second column longitudinal position line 9, wherein the distance between two adjacent column longitudinal position lines is 1245.4mm, the second column longitudinal position line and the column lower bracket positioning line vertically intersect to obtain a second cross line, drawing the rest longitudinal position lines according to the method, and respectively vertically intersecting each column longitudinal position line 9 with the column lower bracket positioning line 10 to form the cross line.
The present embodiment is further illustrative of the present invention and is not to be construed as limiting the invention, and those skilled in the art can make no inventive modifications to the present embodiment as required after reading the present specification, but only as long as they are within the scope of the claims of the present invention.
Claims (3)
1. The method for precisely installing the lower toggle plate of the liquid cargo tank of the containment system is characterized by comprising the following steps of:
step 1, drawing a low-level toggle plate positioning cross line on a low-level toggle plate mounting surface; when drawing the low level toggle plate positioning cross line, the method comprises the following steps:
1. The adjacent bulkhead is intersected with the lower bracket mounting surface at the bulkhead position adjacent to the lower bracket mounting surface;
2. placing a scribing template at the intersection position of the adjacent bulkhead and the lower bracket mounting surface, placing the scribing template by being attached to the adjacent bulkhead and the lower bracket mounting surface, determining a point on a positioning line of the lower bracket of the support column from the scribing template, and marking the point on the lower bracket mounting surface; moving a scribing template, determining another point on a positioning line of the lower bracket of the support column from the scribing template, marking the other point on a mounting surface of the lower bracket, and connecting the two points to mark the positioning line of the lower bracket of the support column;
3. drawing the central line of the mounting surface of the low-level toggle plate, and prolonging the central line to the intersection position of the adjacent bulkhead and the mounting surface of the low-level toggle plate to obtain an O point; drawing a vertical line along the direction O which is perpendicular to the positioning line of the lower bracket of the support column, moving the vertical line to the longitudinal position line of the support column in the stern direction, wherein the moving distance is the distance between the longitudinal position line of the support column and the central line of the mounting surface of the lower bracket;
Step 2, placing a low-level toggle plate positioning template at the position of the cross line, wherein the low-level toggle plate positioning template comprises a square plate body, a right triangle template positioning opening is respectively arranged at the four edge centers of the square plate body, and a round hole for checking whether the low-level toggle plate positioning template is aligned with the center of the cross line is also arranged at the central position of the low-level toggle plate positioning template; one straight edge of the template positioning opening coincides with the central line of the square plate body, and a low-level toggle plate positioning opening is arranged at the relative position of the corresponding low-level toggle plate on the low-level toggle plate positioning template; aligning straight edges of four template positioning openings of the lower toggle plate positioning template with the cross line in a superposition way; the lower toggle plate positioning opening is in a right triangle shape, one corner of the lower toggle plate is aligned with a right-angle contour line of the lower toggle plate positioning opening, and the relative positions of the three lower toggle plates are determined; then drawing a contour line of the low-level toggle plate positioning opening on the low-level toggle plate mounting surface along the low-level toggle plate positioning opening;
Step 3, positioning three low-level toggle plates according to contour lines of positioning openings of the low-level toggle plates marked on the mounting surface of the low-level toggle plate, and performing spot welding fixation on the low-level toggle plates;
and 4, welding the lower toggle plate to finish welding.
2. The method for accurately installing the lower bracket of the liquid cargo tank of the containment system according to claim 1, wherein the lower bracket positioning line of the pillar is offset along the first pillar longitudinal position line drawn as a reference to obtain the pillar longitudinal position line adjacent to the lower bracket positioning line of the pillar; the offset distance is the distance between the longitudinal position lines of two adjacent struts; the longitudinal position line of each pillar is respectively crossed with the positioning line of the lower bracket of the pillar vertically to form a cross line.
3. The method for accurately mounting the low-level toggle plate of the liquid cargo tank of the containment system according to claim 1, wherein the scribing template comprises a plate body, and the plate body comprises two adjacent flat surfaces which are respectively used for being abutted against the adjacent bulkhead and the low-level toggle plate mounting surface; the plate body is also provided with a mark for the position of a positioning line of the lower bracket of the support column; when in use, the two straight surfaces of the plate body are respectively abutted against the adjacent bulkhead and the mounting surface of the lower bracket, and the mark of the position of the positioning line of the lower bracket of the support post is positioned on the mounting surface of the lower bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440931.XA CN113978658B (en) | 2021-11-30 | 2021-11-30 | Method for precisely installing low-level toggle plate of liquid cargo tank of containment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440931.XA CN113978658B (en) | 2021-11-30 | 2021-11-30 | Method for precisely installing low-level toggle plate of liquid cargo tank of containment system |
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| CN113978658A CN113978658A (en) | 2022-01-28 |
| CN113978658B true CN113978658B (en) | 2024-09-06 |
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| CN114919701B (en) * | 2022-06-07 | 2024-07-05 | 浙江嘉声环保科技有限公司 | Production process of inflatable boat with boat cover structure |
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| CN107378903A (en) * | 2017-07-28 | 2017-11-24 | 广船国际有限公司 | A kind of docking block marking-off plate |
| CN112357007A (en) * | 2020-11-19 | 2021-02-12 | 江南造船(集团)有限责任公司 | Installation method of electromagnetic compass measuring unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU115169U1 (en) * | 2011-07-26 | 2012-04-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ивановская государственная текстильная академия" (ИГТА) | TEMPLATE FOR CONSTRUCTIVE MODELING OF A HOSE |
| CN109094723B (en) * | 2018-09-28 | 2020-02-07 | 中船黄埔文冲船舶有限公司 | Anchor chain cylinder and anchor platform manufacturing and mounting method |
| CN109367693B (en) * | 2018-10-25 | 2022-03-15 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | Allowance-free installation method for large equipment base for ship |
| CN110421320A (en) * | 2019-08-06 | 2019-11-08 | 招商局重工(深圳)有限公司 | A kind of positioning piling bar welding procedure of cutter suction dredger |
| CN112319727B (en) * | 2020-11-12 | 2021-12-14 | 江苏新时代造船有限公司 | Positioning method of energy-saving flow guide device for ship |
| CN112357006A (en) * | 2020-11-19 | 2021-02-12 | 江南造船(集团)有限责任公司 | Installation method of main compass |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378903A (en) * | 2017-07-28 | 2017-11-24 | 广船国际有限公司 | A kind of docking block marking-off plate |
| CN112357007A (en) * | 2020-11-19 | 2021-02-12 | 江南造船(集团)有限责任公司 | Installation method of electromagnetic compass measuring unit |
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| CN113978658A (en) | 2022-01-28 |
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