CN115258041A - LNG (liquefied Natural gas) breathable mast for LNG (liquefied Natural gas) double-fuel ship - Google Patents
LNG (liquefied Natural gas) breathable mast for LNG (liquefied Natural gas) double-fuel ship Download PDFInfo
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- CN115258041A CN115258041A CN202210800798.2A CN202210800798A CN115258041A CN 115258041 A CN115258041 A CN 115258041A CN 202210800798 A CN202210800798 A CN 202210800798A CN 115258041 A CN115258041 A CN 115258041A
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- steel pipes
- lng
- mast
- adjacent
- strut
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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
- B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
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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
- B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
- B63B2015/0016—Masts characterized by mast configuration or construction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention provides an LNG (liquefied natural gas) breathable mast for an LNG (liquefied natural gas) double-fuel ship, which comprises a mast structure, wherein a bottom strut steel pipe, a middle strut steel pipe, a top support steel pipe and middle and lower support steel pipes are arranged at the bottom of the mast structure; the two middle pillar steel pipes are connected with the bottom pillar steel pipe through a backing plate, and the other two middle pillar steel pipes are obliquely fixed at the top end of the chimney; the bottom ends of the four top strut steel pipes are respectively connected with the top ends of the four middle strut steel pipes in a one-to-one correspondence manner through a blind flange; a plurality of middle-lower supporting steel pipes are connected between the adjacent bottom supporting steel pipes and between the adjacent middle supporting steel pipes; a plurality of top supporting steel pipes are connected between adjacent top supporting steel pipes; the pipe diameters of the bottom pillar steel pipe, the middle pillar steel pipe and the top pillar steel pipe are reduced in sequence. The LNG ventilation mast for the LNG double-fuel ship reduces the weight of the mast on the basis of ensuring the original strength, simplifies the structural style and provides an optimal arrangement scheme by combining a general diagram.
Description
Technical Field
The invention relates to the field of breathable masts, in particular to an LNG breathable mast for an LNG double-fuel ship.
Background
The form of the current LNG breathable mast is seen to be basically similar in appearance. The mast is one of the more common forms, the structural form of each visual direction of the mast is mainly V-shaped with a cross brace, the main body adopts seamless steel pipes with uniform specification, and the middle support steel pipe adopts a slightly smaller seamless steel pipe. The other type is another common mast type, the bottom of the mast type adopts an X-shaped cross brace, the top of the mast type adopts a V-shaped cross brace, the main body strut adopts seamless steel pipes with uniform specifications, and the inclined strut and the cross brace adopt slightly smaller seamless steel pipes with uniform specifications.
The strength of the existing masts of two types is not problematic, and the disadvantage is that the weight of the mast is heavier. On small ships this disadvantage is amplified, the material and construction costs are high, and the compact and bulky construction pattern affects the aesthetics on the main deck.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the LNG breathable mast for the LNG dual-fuel ship, which reduces the weight of the mast on the basis of ensuring the original strength, simplifies the structural form and provides an optimal arrangement scheme combined with a general diagram.
In order to achieve the above object, the present invention provides an LNG permeable mast for an LNG double fuel ship, comprising a mast structure, wherein the mast structure comprises two bottom strut steel pipes, four middle strut steel pipes, four top strut steel pipes, a plurality of top support steel pipes and a plurality of middle and lower support steel pipes; the two bottom pillar steel pipes are vertically fixed on one side of a chimney at intervals; the bottom ends of the two middle pillar steel pipes are respectively connected with the top end of the bottom pillar steel pipe through a backing plate, and the other two middle pillar steel pipes are obliquely fixed at the top end of the chimney; the bottom ends of the four top strut steel pipes are correspondingly connected to the top ends of the four middle strut steel pipes one by one through a blind flange; a plurality of middle and lower supporting steel pipes are connected between the adjacent bottom pillar steel pipes; a plurality of middle and lower supporting steel pipes are connected between the adjacent middle supporting steel pipes; a plurality of top supporting steel pipes are connected between the adjacent top supporting steel pipes; the pipe diameters of the bottom pillar steel pipe, the middle pillar steel pipe and the top pillar steel pipe are reduced in sequence.
Preferably, a plurality of middle and lower supporting steel pipes are horizontally connected between the adjacent bottom pillar steel pipes; a plurality of first connecting nodes which are staggered are arranged on the adjacent middle strut steel pipes, and two groups of middle and lower supporting steel pipes are connected between the first connecting nodes of the two adjacent middle strut steel pipes in a V shape; and a plurality of second connecting nodes which are staggered are arranged on the adjacent top strut steel pipes, and two groups of top strut steel pipes are connected between the second connecting nodes of the adjacent two top strut steel pipes in a V-shaped manner.
Preferably, the middle lower support steel tubes of adjacent faces of the mast structure share the first connecting node between the adjacent faces; the top support steel pipes of the adjacent surfaces of the mast structure share the second connecting node between the adjacent surfaces.
Preferably, the tower further comprises a middle platform and a plurality of vertical ladders fixed in the mast structure.
Preferably, the mast structure further comprises a top platform secured to the top end of the mast structure.
Preferably, the ventilating mast further comprises a plurality of ventilating masts, the ventilating masts are fixed on galvanized angle steel through a plurality of pipe clamps, and the galvanized angle steel is welded in the mast structure.
Preferably, the mast structure is coated with a refractory coating on a portion thereof proximate the chimney.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the reduction of weight is brought by the fine division of the mast structure; the mast of the mast structure comprises a bottom mast steel pipe, a middle mast steel pipe and a part mast steel pipe, which are divided into 3 parts and connected in different forms, the mast is divided into three specifications instead of adopting the same large-size mast with single consideration of strength, and the weight of the mast with the height of about sixteen meters is reduced by about 1.5 tons.
2. Convenience of mast maintenance; the mast structure is mainly divided into three parts, each part adopts different forms for connection, and the bottom ends of the top strut steel pipes are respectively connected with the top ends of the four middle strut steel pipes in a one-to-one correspondence manner through a blind flange, so that the maintenance of the mast structure is convenient.
3. Optimizing the strength; the structure of the mast is refined into three parts, each inclined strut adopts a continuous V-shaped design, and V-shaped of each adjacent surface shares one node, so that the stability of the structure is ensured. Through structural finite element calculation, the strength is superior to the conditions that the main body has the same specification, the inclined strut has the same specification, and the mast is in a type I and a type II. In addition, in combination with the overall arrangement, the strength can be better guaranteed if the mast structure is used as a side pillar by means of a chimney. When the mast structure is arranged close to the chimney, the mast structure needs a high-temperature-resistant coating, and the service life of the mast structure is prolonged.
The mast type of the invention not only ensures the strength of the mast, realizes the optimization of the weight, has more outstanding contribution to small-sized double-fuel ships, realizes the function of maintaining the ventilating mast, but also realizes the convenience of maintenance by considering the maintenance of the mast.
Drawings
Fig. 1 is a schematic structural view of a first perspective of an LNG ventilation mast for an LNG tanker according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a cross-sectional view C-C of FIG. 1;
FIG. 5 is a schematic diagram of a second perspective view of an LNG ventilation mast for an LNG tanker according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a third perspective view of an LNG ventilation mast for an LNG tanker according to an embodiment of the present invention;
FIG. 7 is a fourth perspective view of an LNG permeable mast for an LNG tanker according to an embodiment of the present invention;
FIG. 8 is a schematic view of the connection structure of the air permeable mast according to the embodiment of the present invention;
fig. 9 is a schematic perspective view of an LNG ventilation mast for an LNG tanker according to an embodiment of the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, fig. 1-9, and will make the functions and features of the invention better understood.
Referring to fig. 1 to 9, an LNG permeable mast for an LNG tanker according to an embodiment of the present invention includes a mast structure having two bottom support steel pipes 1, four middle support steel pipes 2, four top support steel pipes 3, a plurality of top support steel pipes 5, and a plurality of middle and lower support steel pipes 4; the two bottom pillar steel pipes 1 are vertically fixed at intervals on one side of a chimney 11; the bottom ends of the two middle pillar steel pipes 2 are respectively connected with the top end of the bottom pillar steel pipe 1 through a backing plate 6, and the other two middle pillar steel pipes 2 are obliquely fixed at the top end of the chimney 11; the bottom ends of the four top strut steel pipes 3 are respectively connected with the top ends of the four middle strut steel pipes 2 in a one-to-one correspondence manner through a blind flange 7; a plurality of middle-lower supporting steel pipes 4 are connected between the adjacent bottom pillar steel pipes 1; a plurality of middle and lower supporting steel pipes 4 are connected between the adjacent middle supporting steel pipes 2; a plurality of top supporting steel pipes 5 are connected between the adjacent top supporting steel pipes 3; the pipe diameters of the bottom pillar steel pipe 1, the middle pillar steel pipe 2 and the top pillar steel pipe 3 are reduced in sequence.
A plurality of middle and lower supporting steel pipes 4 are horizontally connected between the adjacent bottom pillar steel pipes 1; a plurality of first connecting nodes which are staggered are arranged on the adjacent middle strut steel pipes 2, and two middle and lower supporting steel pipes 4 are connected between the first connecting nodes of the two adjacent middle strut steel pipes 2 in a V-shaped manner; a plurality of second connecting nodes which are staggered are arranged on the adjacent top strut steel pipes 3, and two groups of top support steel pipes 5 are connected between the second connecting nodes of the two adjacent top strut steel pipes 3 in a V-shaped mode.
The middle lower part of the adjacent surfaces of the mast structure supports the steel pipe 4 to share the first connecting node between the adjacent surfaces; the top support steel tubes 5 of adjacent faces of the mast structure share a second connecting node between the adjacent faces.
Also comprises a middle platform 9 and a plurality of vertical ladders 8 which are fixed in the mast structure.
A top platform 10 is also included, the top platform 10 being secured to the top end of the mast structure.
The ventilating mast comprises a mast frame structure and is characterized by further comprising a plurality of ventilating masts 12, the ventilating masts 12 are fixed on galvanized angle iron 14 through a plurality of pipe clamps 13, and the galvanized angle iron 14 is welded in the mast frame structure.
The mast structure is coated with a high temperature resistant coating on the portion thereof adjacent the chimney 11.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (7)
1. An LNG ventilation mast for an LNG double-fuel ship is characterized by comprising a mast structure, wherein the mast structure comprises two bottom strut steel pipes (1), four middle strut steel pipes (2), four top strut steel pipes (3), a plurality of top support steel pipes (5) and a plurality of middle and lower support steel pipes (4); the two bottom pillar steel pipes (1) are vertically fixed on one side of a chimney (11) at intervals; the bottom ends of the two middle strut steel pipes (2) are respectively connected with the top end of the bottom strut steel pipe (1) through a backing plate (6), and the other two middle strut steel pipes (2) are obliquely fixed at the top end of the chimney (11); the bottom ends of the four top strut steel pipes (3) are respectively connected to the top ends of the four middle strut steel pipes (2) in a one-to-one correspondence manner through a blind flange (7); a plurality of middle and lower supporting steel pipes (4) are connected between the adjacent bottom pillar steel pipes (1); a plurality of middle and lower supporting steel pipes (4) are connected between the adjacent middle supporting steel pipes (2); a plurality of top supporting steel pipes (5) are connected between the adjacent top supporting steel pipes (3); the pipe diameters of the bottom support steel pipe (1), the middle support steel pipe (2) and the top support steel pipe (3) are reduced in sequence.
2. LNG ventilation mast for LNG tanker according to claim 1, characterized in that several of said middle and lower support steel pipes (4) are horizontally connected between adjacent said bottom strut steel pipes (1); a plurality of first connecting nodes which are staggered are arranged on the adjacent middle strut steel pipes (2), and two groups of middle and lower supporting steel pipes (4) are connected between the first connecting nodes of the two adjacent middle strut steel pipes (2) in a V shape; a plurality of second connection nodes which are staggered are arranged on the adjacent top support steel pipes (3), and two groups of top support steel pipes (5) are connected between the second connection nodes of the adjacent two top support steel pipes (3) in a V-shaped mode.
3. LNG ventilation mast for LNG tanker according to claim 2, characterized in that the lower and middle support steel tubes (4) of adjacent faces of the mast structure share the first connection nodes between the adjacent faces; the top support steel tubes (5) of adjacent faces of the mast structure share the second connecting node between the adjacent faces.
4. An LNG ventilation mast for LNG tanker according to claim 2, characterized in that it further comprises a middle platform (9) and several vertical ladders (8) fixed in the mast structure.
5. LNG ventilation mast for LNG tanker according to claim 4, characterized in that it further comprises a top platform (10), the top platform (10) being fixed to the top end of the mast structure.
6. The LNG ventilation mast for LNG tankers according to claim 5, further comprising a plurality of ventilation masts (12), wherein the ventilation masts (12) are fixed to a galvanized angle iron (14) by a plurality of pipe clamps (13), and wherein the galvanized angle iron (14) is welded into the mast structure.
7. LNG ventilation mast for LNG bi-fuel ships according to claim 6, characterized in that the mast structure is coated with a high temperature resistant coating in the part close to the chimney (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210800798.2A CN115258041A (en) | 2022-07-08 | 2022-07-08 | LNG (liquefied Natural gas) breathable mast for LNG (liquefied Natural gas) double-fuel ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210800798.2A CN115258041A (en) | 2022-07-08 | 2022-07-08 | LNG (liquefied Natural gas) breathable mast for LNG (liquefied Natural gas) double-fuel ship |
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| Publication Number | Publication Date |
|---|---|
| CN115258041A true CN115258041A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210800798.2A Pending CN115258041A (en) | 2022-07-08 | 2022-07-08 | LNG (liquefied Natural gas) breathable mast for LNG (liquefied Natural gas) double-fuel ship |
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| CN (1) | CN115258041A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1537191A (en) * | 2001-07-25 | 2004-10-13 | 尤里・罗勃脱维奇・龚格 | Power transmission line support construction |
| CN201605868U (en) * | 2010-03-06 | 2010-10-13 | 济宁圣和网络设备有限公司 | Communication tower |
| CN207813166U (en) * | 2018-01-25 | 2018-09-04 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of quadrangle variable cross section-type equipment supporter of extra-high-voltage alternating current substation |
| CN110949607A (en) * | 2019-12-10 | 2020-04-03 | 中国船舶工业集团公司第七0八研究所 | Combined front mast used as liquefied natural gas ventilating mast |
| US20200123861A1 (en) * | 2018-10-23 | 2020-04-23 | Nabors Drilling Technologies Usa, Inc. | Automated drilling rig system |
| KR20200048090A (en) * | 2018-10-29 | 2020-05-08 | 대우조선해양 주식회사 | Arrangement of LFS System on Container Ship located adjacent to the Engine Room |
| CN212614544U (en) * | 2020-06-28 | 2021-02-26 | 北京中岩大地科技股份有限公司 | Novel light drilling machine pile frame |
| CN214190019U (en) * | 2020-11-16 | 2021-09-14 | 南通中远海运川崎船舶工程有限公司 | Dual-fuel power container transport ship |
| CN215978703U (en) * | 2021-08-30 | 2022-03-08 | 苏州华达环保设备股份有限公司 | Modular polygonal cross section space is separated posture high-rise pylon structure |
| CN216110005U (en) * | 2021-04-19 | 2022-03-22 | 青岛平原钢结构有限公司 | Single-loop positive and negative phase sequence transformation angle steel tower |
-
2022
- 2022-07-08 CN CN202210800798.2A patent/CN115258041A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1537191A (en) * | 2001-07-25 | 2004-10-13 | 尤里・罗勃脱维奇・龚格 | Power transmission line support construction |
| CN201605868U (en) * | 2010-03-06 | 2010-10-13 | 济宁圣和网络设备有限公司 | Communication tower |
| CN207813166U (en) * | 2018-01-25 | 2018-09-04 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of quadrangle variable cross section-type equipment supporter of extra-high-voltage alternating current substation |
| US20200123861A1 (en) * | 2018-10-23 | 2020-04-23 | Nabors Drilling Technologies Usa, Inc. | Automated drilling rig system |
| KR20200048090A (en) * | 2018-10-29 | 2020-05-08 | 대우조선해양 주식회사 | Arrangement of LFS System on Container Ship located adjacent to the Engine Room |
| CN110949607A (en) * | 2019-12-10 | 2020-04-03 | 中国船舶工业集团公司第七0八研究所 | Combined front mast used as liquefied natural gas ventilating mast |
| CN212614544U (en) * | 2020-06-28 | 2021-02-26 | 北京中岩大地科技股份有限公司 | Novel light drilling machine pile frame |
| CN214190019U (en) * | 2020-11-16 | 2021-09-14 | 南通中远海运川崎船舶工程有限公司 | Dual-fuel power container transport ship |
| CN216110005U (en) * | 2021-04-19 | 2022-03-22 | 青岛平原钢结构有限公司 | Single-loop positive and negative phase sequence transformation angle steel tower |
| CN215978703U (en) * | 2021-08-30 | 2022-03-08 | 苏州华达环保设备股份有限公司 | Modular polygonal cross section space is separated posture high-rise pylon structure |
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