CN110877655A - Large-scale marine generator base of LNG - Google Patents
Large-scale marine generator base of LNG Download PDFInfo
- Publication number
- CN110877655A CN110877655A CN201911070504.XA CN201911070504A CN110877655A CN 110877655 A CN110877655 A CN 110877655A CN 201911070504 A CN201911070504 A CN 201911070504A CN 110877655 A CN110877655 A CN 110877655A
- Authority
- CN
- China
- Prior art keywords
- base
- prime mover
- motor base
- plate
- toggle plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
Abstract
The invention relates to a structural design form of a large-scale LNG marine generator base, which comprises a prime motor base module and a motor base module, wherein the prime motor base module and the motor base module are fixedly connected through a connecting toggle plate, and the prime motor base module is of a box-type structure. The base in the form reduces additional reinforcement on the premise of ensuring the rigidity requirement of the base, and the base of the prime motor and the motor is used as an integral base by arranging the distance-keeping toggle plate, the anti-tilting toggle plate and the connecting toggle plate, so that the field hoisting, transportation and installation are facilitated; by adding the welding process hole on the composite plate of the prime motor base, the double-sided continuous welding between the box-type structure and the lower deck plate of the box-type structure is realized, and the weight of the base is reduced.
Description
Technical Field
The invention relates to the technical field of construction of large-scale double-fuel electric propulsion LNG ships, in particular to a generator base for a large-scale LNG ship.
Background
Since the birth of LNG ships, a combination of a boiler and a steam turbine has long been used as a power system for LNG ships. This is a reasonable system, but the inefficiencies, bulkiness, lack of maintenance engineers and crew, few manufacturing plants, limited capacity, etc. of boilers and turbines are increasingly prominent. Since this century, the rapid development of the global trade in LNG has made it common wisdom to find a more efficient, compact, and more accessible host than a turbine with dual fuel combustion capabilities. The propulsion modes of the current LNG ship mainly include: conventional turbine propulsion systems, high efficiency turbine propulsion systems, DFDE dual fuel electric propulsion systems, and the like. The project of adopting the DFDE dual-fuel electric propulsion system in the newly designed LNG ship order accounts for about 70 percent, so that the structural design of the main generator base of the large-scale dual-fuel electric propulsion LNG ship is deeply researched, the installation process is simple in addition to the requirement of equipment, and meanwhile, the structural lightweight design requirement is considered.
Disclosure of Invention
Aiming at the installation condition of a large-scale double-fuel electric propulsion LNG ship generator, the invention provides a large-scale LNG ship generator base, which greatly simplifies the field installation process, simultaneously considers the structural arrangement of the reverse side of a deck and realizes the light weight of the generator base structure, and the technical purpose of the invention is realized by the following technical scheme:
the utility model provides a large-scale marine generator base of LNG, its structure includes prime mover base module, motor base module, through connecting bracket fixed connection between prime mover base module and the motor base module, prime mover base module is the box structure.
Furthermore, the prime motor base module comprises a prime motor base box body and a prime motor base distance-keeping toggle plate, the prime motor base distance-keeping toggle plate is fixedly connected between the prime motor base box bodies on two sides, and a through welding hole is formed in the bottom of the prime motor base distance-keeping toggle plate at the joint of the prime motor base distance-keeping toggle plate and the prime motor base box body.
Furthermore, a prime motor base anti-tilting toggle plate is arranged on the outer side wall of the box body of the prime motor base, one side of the prime motor base anti-tilting toggle plate is fixed on the outer side wall of the box body of the prime motor base, and a through welding hole is formed in the bottom of the prime motor base anti-tilting toggle plate at the joint of the prime motor base anti-tilting toggle plate and the box body of the prime motor base.
Furthermore, the prime mover base box body comprises a prime mover base panel, prime mover base webs and transverse supporting plates, the two prime mover base webs are arranged in parallel, the plurality of transverse supporting plates are arranged between the two prime mover base webs in parallel, two ends of each transverse supporting plate are respectively connected and fixed to the prime mover base webs on the two sides, and the prime mover base panel is fixed to the prime mover base webs and the upper ends of the transverse supporting plates; the bottom of the transverse supporting plate at the joint of the transverse supporting plate and the base web of the prime motor is provided with a through welding hole.
Furthermore, a welding process hole is formed in a web plate of the prime motor base and used for welding the opposite side, double-side continuous welding between the box-type structure and the lower deck is achieved, the box-type structure can be used for follow-up operation detection and observation, and the quality of the prime motor base can be reduced.
Furthermore, the motor base module comprises a motor base panel, a motor base web plate and a motor base anti-tilting toggle plate, the motor base anti-tilting toggle plate is fixedly connected to one side of the motor base web plate, a through welding hole is formed in the bottom of the motor base anti-tilting toggle plate at the joint of the motor base anti-tilting toggle plate and the motor base web plate, and the motor base panel is fixed to the upper ends of the motor base web plate and the motor base anti-tilting toggle plate; the motor base distance-keeping bracket is fixedly connected between the motor base webs on the two sides, and a through welding hole is formed in the bottom of the motor base distance-keeping bracket at the joint of the motor base distance-keeping bracket and the motor base webs.
Furthermore, a prime motor base connecting sealing plate is arranged at one end, connected with the toggle plate, of the prime motor base module, a motor base connecting sealing plate is arranged at one end, connected with the toggle plate, of the motor base module, one end, connected with the toggle plate, of the motor base module is connected with the prime motor base connecting sealing plate fixedly, and the other end of the motor base connecting sealing plate is connected with the motor base fixedly.
Furthermore, one end of each prime motor base box body, which is far away from the connecting toggle plate, is provided with a box-type structure supporting plate, and one end of each prime motor base box body is provided with one box-type structure supporting plate.
Furthermore, a through welding hole is formed in the bottom of the connecting toggle plate at the joint of the connecting toggle plate and the prime motor base connecting sealing plate, and a through welding hole is formed in the bottom end of the connecting toggle plate at the joint of the connecting toggle plate and the motor base connecting sealing plate.
The box-type prime motor base module is fixedly connected with the motor base module through the longitudinal toggle plate, the box-type prime motor base module ensures the strength of the prime motor base module, can reduce the quality of the prime motor base module and is convenient to install, a welding process hole is formed in a web plate of the prime motor base module for welding the opposite side and can be used for subsequent operation detection and observation, a through welding hole is formed in the structural connection position to ensure the welding continuity, the subsequent operation can also be used as a water flowing hole to avoid water accumulation, the prime motor base module and the motor base module can be separately manufactured and then connected and fixed during operation, and the working efficiency is improved; through setting up the guarantor's distance bracket, preventing inclining the bracket and connecting the bracket, regard the base of prime mover and motor as an integral base, convenient on-the-spot hoist and mount, transportation and installation.
Drawings
Fig. 1 is a schematic perspective view of a generator base for a large LNG ship according to the present invention.
Fig. 2 is a schematic view of the mounting of the prime mover base attachment seal plate of the present invention.
Fig. 3 is a schematic view of the motor base attachment seal plate of the present invention.
Fig. 4 is an enlarged view at a in fig. 1.
Fig. 5 is a schematic view of a box-type structural gusset.
In the figure, 1, a prime mover base web; 2. a prime mover base panel; 3. a prime mover base distance-keeping toggle plate; 4. a box-type structural supporting plate; 5. a prime mover base anti-tilt toggle plate; 6. welding a fabrication hole; 7. a welding hole is formed; 8. a transverse supporting plate; 9. a motor base web; 10. a motor base panel; 11. a motor base anti-tilt toggle plate; 12. connecting a toggle plate; 13. the prime motor base is connected with the sealing plate; 14. the motor base is connected with the sealing plate; 15. a motor base distance-keeping toggle plate; 16. a transverse steel plate; 17. and (4) a triangular steel plate.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments:
as shown in fig. 1 to 5, the structure of the generator base for the large LNG ship comprises a prime mover base module and a motor base module.
The prime motor base module is of a box-type structure and comprises a prime motor base box body and a prime motor base distance-keeping toggle plate 3, the prime motor base distance-keeping toggle plate 3 is fixedly connected between the prime motor base box bodies on two sides, a through welding hole 7 is formed in the bottom of the prime motor base distance-keeping toggle plate 3 at the joint of the prime motor base distance-keeping toggle plate 3 and the prime motor base box body, a prime motor base anti-overturning toggle plate 5 is arranged on the outer side wall of the prime motor base box body, one side of the prime motor base anti-overturning toggle plate 5 is fixed on the outer side wall of the prime motor base box body, and a through welding hole 7 is formed in the bottom of the prime motor base anti-overturning toggle plate 5 at the joint of; a box-type structural supporting plate 4 is arranged at one end, far away from the connecting toggle plate 12, of the box body of the prime motor base, the box-type structural supporting plate consists of a transverse steel plate 16 and two right-angled triangular steel plates 17, the two right-angled triangular steel plates 17 are fixed on one side of the transverse steel plate 16, a through welding hole 7 is also formed in the bottom of the connecting and fixing position of the triangular steel plates 17 and the transverse steel plate 16, and the through welding hole 7 is positioned at the bottom of the transverse steel plate 16; one end of each of the two prime motor base box bodies is provided with a box-type structural supporting plate 4; the prime motor base box body comprises a prime motor base panel 2, prime motor base webs 1 and transverse supporting plates 8, the two prime motor base webs 1 are arranged in parallel, welding process holes 6 are formed in the prime motor base webs 1, the plurality of transverse supporting plates 8 are arranged between the two prime motor base webs 1 in parallel, the prime motor base panel 2 is fixed at the upper ends of the prime motor base webs 1 and the transverse supporting plates 8, and two ends of each transverse supporting plate 8 are respectively connected and fixed on the prime motor base webs 1 on two sides; the bottom of the transverse bracing plate 8 at the joint of the transverse bracing plate 8 and the base web plate 1 of the prime mover is provided with a through welding hole 7.
Considering that the longitudinal load is large, in order to ensure the longitudinal welding strength, the base web plate 1 of the prime mover adopts a welding form of single-side deep fusion welding, the bevel angle is 50 degrees, and the bevel depth is 1/3 of the plate thickness; inside the box structure, owing to the space restriction should not be under construction, adopt 8 mm's fillet weld.
The motor base module comprises a motor base panel 10, a motor base web 9 and a motor base anti-tilt toggle plate 11, the motor base anti-tilt toggle plate 11 is fixedly connected to one side of the motor base web 9, a through welding hole 7 is formed in the bottom of the motor base anti-tilt toggle plate 11 at the joint of the motor base anti-tilt toggle plate 11 and the motor base web 9, and the motor base panel 10 is fixed to the upper ends of the motor base web 9 and the motor base anti-tilt toggle plate 11; and a motor base distance-keeping toggle plate 15 is fixedly connected between the motor base web plates 9 on the two sides, and a through welding hole 7 is formed in the bottom of the motor base distance-keeping toggle plate 15 at the joint of the motor base distance-keeping toggle plate 15 and the motor base web plates 9. The motor base web 9 is of a sheet structure, and can be reached from two sides, so that welding process holes are not needed.
A prime motor base connecting sealing plate 13 is arranged at one end of the prime motor base module, which is connected with the connecting toggle plate 12, and a through welding hole 7 is arranged at the bottom of the connecting toggle plate 12 at the joint of the connecting toggle plate 12 and the prime motor base connecting sealing plate 13; a motor base connecting seal plate 14 is arranged at one end of the motor base module connected with the connecting toggle plate 12, and a through welding hole 7 is also arranged at the bottom end of the connecting toggle plate 12 at the joint of the connecting toggle plate 12 and the motor base connecting seal plate 14; one end of the connecting toggle plate 12 is connected to and fixed to a prime mover base connecting cover plate 13, and the other end is connected to and fixed to a motor base connecting cover plate 14.
The present invention is further explained and not limited by the embodiments, and those skilled in the art can make various modifications as necessary after reading the present specification, but all the embodiments are protected by the patent law within the scope of the claims.
Claims (8)
1. The large-scale LNG marine generator base is characterized by structurally comprising a prime mover base module and a motor base module, wherein the prime mover base module and the motor base module are fixedly connected through a connecting toggle plate, and the prime mover base module is of a box-type structure.
2. The large LNG ship generator base of claim 1, wherein the prime mover base module comprises a prime mover base housing, and a prime mover base retaining bracket that is fixedly connected between the two prime mover base housings.
3. The large LNG ship generator base according to claim 2, wherein the prime mover base box is provided at an outer side wall thereof with a prime mover base anti-tilt toggle plate, and the prime mover base anti-tilt toggle plate is fixed at an outer side wall thereof.
4. The power generator base of claim 2, wherein the prime mover base box comprises a prime mover base panel, a prime mover base web, and a plurality of transverse bracing plates, the two prime mover base webs are disposed in parallel, the plurality of transverse bracing plates are disposed in parallel between the two prime mover base webs, two ends of each transverse bracing plate are respectively connected and fixed to the prime mover base webs on two sides, and the prime mover base panel is fixed to the prime mover base webs and the upper ends of the transverse bracing plates.
5. The power generator base for the large LNG ship as claimed in claim 4, wherein welding process holes are formed in the web of the prime mover base.
6. The large-scale LNG marine generator base of claim 1, wherein the motor base module comprises a motor base panel, a motor base web, and a motor base anti-roll elbow plate, the motor base anti-roll elbow plate is fixedly connected to one side of the motor base web, and the motor base panel is fixed to the upper ends of the motor base web and the motor base anti-roll elbow plate; and a motor base distance-keeping toggle plate is fixedly connected between the motor base webs on the two sides.
7. The power generator base for large LNG ships as claimed in claim 1, wherein the prime mover base module is provided with a prime mover base connection closing plate at an end thereof connected to the connection toggle plate, the motor base module is provided with a motor base connection closing plate at an end thereof connected to the connection toggle plate, the connection toggle plate is connected to the fixed prime mover base connection closing plate at one end thereof, and the fixed motor base connection closing plate at the other end thereof.
8. The power generator base for large LNG ships as claimed in claim 1, wherein the prime mover base casing is provided with a box-type structural bracing plate at an end thereof remote from the connecting toggle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911070504.XA CN110877655A (en) | 2019-11-05 | 2019-11-05 | Large-scale marine generator base of LNG |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911070504.XA CN110877655A (en) | 2019-11-05 | 2019-11-05 | Large-scale marine generator base of LNG |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110877655A true CN110877655A (en) | 2020-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911070504.XA Pending CN110877655A (en) | 2019-11-05 | 2019-11-05 | Large-scale marine generator base of LNG |
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| Country | Link |
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| CN (1) | CN110877655A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130021204A (en) * | 2011-08-22 | 2013-03-05 | 에스티엑스조선해양 주식회사 | Electric propulsion type lng fuel supply vessel |
| CN107323610A (en) * | 2017-06-30 | 2017-11-07 | 广船国际有限公司 | Main engine bed, the installation method in gear block block stage |
| CN207241960U (en) * | 2017-06-23 | 2018-04-17 | 上海外高桥造船有限公司 | Anchor winch integrated base |
| CN109367693A (en) * | 2018-10-25 | 2019-02-22 | 上海船舶工艺研究所(中国船舶工业集团公司第十研究所) | A kind of large scale equipment pedestal peculiar to vessel without surplus installation method |
| CN208947569U (en) * | 2018-10-23 | 2019-06-07 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Base of steering gear connection structure |
-
2019
- 2019-11-05 CN CN201911070504.XA patent/CN110877655A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130021204A (en) * | 2011-08-22 | 2013-03-05 | 에스티엑스조선해양 주식회사 | Electric propulsion type lng fuel supply vessel |
| CN207241960U (en) * | 2017-06-23 | 2018-04-17 | 上海外高桥造船有限公司 | Anchor winch integrated base |
| CN107323610A (en) * | 2017-06-30 | 2017-11-07 | 广船国际有限公司 | Main engine bed, the installation method in gear block block stage |
| CN208947569U (en) * | 2018-10-23 | 2019-06-07 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Base of steering gear connection structure |
| CN109367693A (en) * | 2018-10-25 | 2019-02-22 | 上海船舶工艺研究所(中国船舶工业集团公司第十研究所) | A kind of large scale equipment pedestal peculiar to vessel without surplus installation method |
Non-Patent Citations (2)
| Title |
|---|
| 林国庚 编；: "《船体结构与识图》", 30 November 1987, 哈尔滨船舶工程学院出版社1987年11月第1版 * |
| 蔡志伟 主编；: "《船舶结构焊接工艺及编制》", 31 July 2014, 哈尔滨工程大学出版社 2014年7月第1版第1次印刷 * |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200313 |
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| RJ01 | Rejection of invention patent application after publication |