CN112849342A - Double-lug LNG tank - Google Patents
Double-lug LNG tank Download PDFInfo
- Publication number
- CN112849342A CN112849342A CN202110318912.3A CN202110318912A CN112849342A CN 112849342 A CN112849342 A CN 112849342A CN 202110318912 A CN202110318912 A CN 202110318912A CN 112849342 A CN112849342 A CN 112849342A
- Authority
- CN
- China
- Prior art keywords
- saddle
- bearing wood
- tank body
- fixed
- tank
- 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
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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
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
-
- 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
- B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
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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
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B2025/087—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising self-contained tanks installed in the ship structure as separate units
Abstract
The invention relates to the field of ships and provides a double-lug LNG liquid tank for an LNG power ship. A reinforcing ring is welded at a position corresponding to the saddle inside the tank body, so that the strength of a part matched with the saddle is increased, and the part matched with the saddle is prevented from being deformed and damaged; the damage to the tank body caused by the displacement of the tank body during the bumping of the ship and the expansion with heat and contraction with cold is reduced by utilizing the matching mode of the fixed saddle and the sliding saddle; a pair of vacuum rings are added in the tank body for reinforcing the structure of the long cylinder body and improving the deformation resistance of the long cylinder body; the oscillation bulkhead is arranged in the middle of the tank body, so that the fluctuation of liquid in the tank body, which is the phenomenon of oscillation, is reduced, and the damage possibly caused by the fluctuation is reduced; the double-lug structure is adopted, the two half tanks are spliced, the storage capacity of the tank is effectively improved, and meanwhile, the longitudinal bulkhead constructed by the two tank bodies further increases the transverse strength of the tank body and prevents deformation.
Description
Technical Field
The invention relates to the field of ships, in particular to a double-lug LNG tank for an LNG power ship.
Background
Since 1 month and 1 day 2015, the european union began to implement strict emission standards for marine sulfides, which were reduced to 0.1% for ships traveling in the exclusive control zones of the european union such as the porpoise sea, the north sea, and the english channel. This term has a large impact on freight because freight costs are sensitive to fuel price, and conventional fuel in shipping is heavy fuel, typically with a sulfur content between 1.0% and 3.5%. To meet the emission control zone requirements of 0.1% sulfur content, shipping companies must use different types of higher purity fuels and therefore are more expensive. The LNG has the advantages of high heat value and low environmental pollution, and gradually becomes the first choice of green energy, the international and domestic LNG trade and transportation are continuously increased, and the demand of LNG ships is rapidly increased. The tank is used as a core device of the LNG ship, and has great influence on the design of LNG transportation. The storage tank is divided into an independent liquid tank and a film type liquid tank according to the type. And the capacity of traditional monaural stand alone type fluid reservoir is less, and the insulating layer of film type fluid reservoir is easily influenced by hull deformation, easily damages and the price is expensive.
Disclosure of Invention
In order to overcome the defects that the LNG liquid tank in the prior art is small in capacity and easy to deform, the invention aims to provide a double-lug LNG storage tank which can effectively prevent deformation and is large in capacity.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a double-lug LNG liquid tank comprises a tank body and two saddles, wherein the tank body is supported on the two saddles, the tank body is formed by welding and splicing two symmetrical half tanks, and the two half tanks are separated by a longitudinal bulkhead; the two saddles are respectively a fixed saddle and a sliding saddle, supporting rings are respectively arranged between the tank body and the two saddles, and the supporting rings are welded on the outer wall of the tank body; the fixed saddle comprises a fixed saddle panel and a fixed pressure-bearing wood block, the fixed pressure-bearing wood block is supported on the fixed saddle panel, a downward convex limiting strip is arranged at the center of the bottom of a supporting ring corresponding to the fixed saddle, and the limiting strip is embedded in the fixed pressure-bearing wood block; the sliding saddle comprises a sliding saddle panel, an upper pressure-bearing wood block and a lower pressure-bearing wood block, wherein the lower pressure-bearing wood block is arranged at the top of the sliding saddle panel, the upper pressure-bearing wood block is arranged at the bottom of a corresponding supporting ring, the upper pressure-bearing wood block is supported on the lower pressure-bearing wood block, and a stainless steel plate is clamped between the matching surfaces of the upper pressure-bearing wood block and the lower pressure-bearing wood block.
Furthermore, the fixed pressure-bearing wood blocks are limited by baffle plates welded on two sides of the fixed saddle panel, and epoxy cement is filled among the fixed pressure-bearing wood blocks, the saddle panel and the baffle plates; epoxy cement is filled between the fixed pressure-bearing wood blocks and the support rings and between the fixed pressure-bearing wood blocks and the limiting strips.
Furthermore, the lower pressure-bearing wood block is limited by baffles on two sides of the sliding saddle panel, and two sides of the upper pressure-bearing wood block are limited by a pair of baffles welded on corresponding support rings; epoxy cement is filled between the lower pressure-bearing wood block and the sliding saddle panel as well as between the lower pressure-bearing wood block and the corresponding baffle plate; epoxy cement is filled between the upper pressure-bearing wood block and the corresponding supporting ring and baffle.
Furthermore, the bottom surfaces of the fixed saddle panel and the sliding saddle panel are fixedly connected with the deck through a saddle web plate and a saddle toggle plate respectively.
Furthermore, an anti-tilt bracket plate is welded between the baffle plates on two sides of the fixed saddle panel and the corresponding saddle bracket plate.
Furthermore, a reinforcing ring is welded on the inner wall of the tank body at a position corresponding to the supporting ring; a swinging bulkhead and a vacuum ring are welded in the tank body, the swinging bulkhead is positioned at the center of the tank body in the axial direction, and a plurality of liquid passing holes are uniformly distributed and processed on the swinging bulkhead; the vacuum rings are distributed on two sides of the oscillating bulkhead and are positioned between the oscillating bulkhead and the reinforcing ring.
Furthermore, lower float stopping seats are respectively installed on two sides of the support ring, upper float stopping seats are correspondingly installed on bulkheads on two sides of the tank body, the upper float stopping seats are installed right above the lower float stopping seats, and float stopping wood blocks are filled between the upper float stopping seats and the lower float stopping seats.
Further, half jar includes the centre of sphere head at interlude and interlude both ends, and the bottom of interlude is equipped with the liquid collecting well, and the top of interlude is equipped with the air chamber.
Furthermore, the outer wall of the tank body is wrapped with an insulating layer.
After the technical scheme is adopted, the invention has the beneficial effects that:
a reinforcing ring is welded at a position corresponding to the saddle inside the tank body, so that the strength of a part matched with the saddle is increased, and the part matched with the saddle is prevented from being deformed and damaged; the damage to the tank body caused by the displacement of the tank body during the bumping of the ship and the expansion with heat and contraction with cold is reduced by utilizing the matching mode of the fixed saddle and the sliding saddle; a pair of vacuum rings are added in the tank body for reinforcing the structure of the long cylinder body and improving the deformation resistance of the long cylinder body; the oscillation bulkhead is arranged in the middle of the tank body, so that the fluctuation of liquid in the tank body, which is the phenomenon of oscillation, is reduced, and the damage possibly caused by the fluctuation is reduced; the double-lug structure is adopted, the two half tanks are spliced, the storage capacity of the tank is effectively improved, and meanwhile, the longitudinal bulkhead constructed by the two tank bodies further increases the transverse strength of the tank body and prevents deformation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure of the fixed saddle;
fig. 4 is a schematic structural view of the mobile saddle.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings:
as shown in the figure, a double-lug LNG tank consists of a tank body and two saddles. The saddle is fixedly welded on the deck of the cabin, and the tank body is arranged on the saddle.
The jar body is by 1 welding amalgamation of half jar of two symmetries, and half jar 1 is formed by the 3 welds of the centre of sphere head at 2 both ends in interlude 2 and interlude, and the bottom of interlude 2 is equipped with the sump pit 4, and the top of interlude 2 is equipped with air chamber 5, separates the airtight cavity that forms the binaural structure by longitudinal bulkhead 6 between two half jar 1. The longitudinally spaced bulkheads 6 provide increased tank length strength. The middle part welding of the interlude 2 of each half jar has and washes bulkhead 7, washes and sets up on the bulkhead 7 and crosses the liquid hole for reduce the internal liquid fluctuation of jar when the hull rocks, reduce the impact of liquid to the jar body. Because the middle section 2 is in a long cylindrical shape, vacuum rings 8 are welded on two sides of the bulkhead 7 in the middle section 2 to support the outer wall of the tank body and enhance the radial strength. The outside at interlude 2 both ends has welded the supporting ring 9 respectively, and two supporting rings 9 are used for supporting the jar body with the saddle cooperation. And a reinforcing ring 10 is welded at the position corresponding to the supporting ring on the inner side of the middle end 2, and the reinforcing ring 10 is used for improving the strength of the supporting position of the tank body and preventing the tank body from deforming. The outer wall of the tank body is covered with an insulating layer 11.
Lower float stopping seats 12 are respectively welded on the horizontal positions of two sides of each supporting ring 9, upper float stopping seats 13 are respectively welded on the bulkhead of two sides of the tank body at the positions corresponding to the positions right above the lower float stopping seats 12, the upper float stopping seats and the lower float stopping seats are respectively welded, and a float stopping wood block 14 is filled between the upper float stopping seats and the lower float stopping seats 12 and 13. When the ship bumps, the upper and lower floating stop seats 12 and 13 extrude the floating stop block 14 to limit the vertical direction of the tank body, so that the impact is reduced.
The two saddles are respectively a fixed saddle 15 and a sliding saddle 16. The fixed saddle comprises a fixed saddle panel 17 and fixed pressure-bearing wood blocks 18, baffle plates 19 are welded on the left side and the right side of the fixed saddle panel 17 respectively, the fixed pressure-bearing wood blocks 18 are supported on the fixed saddle panel 17 and limited by the baffle plates 19 on the two sides of the fixed saddle panel, and epoxy cement 20 is filled between the fixed pressure-bearing wood blocks 18 and the fixed saddle panel 19 as well as between the fixed pressure-bearing wood blocks 18 and the corresponding baffle plates 19; a downward convex limiting strip 21 is welded at the center of the bottom of the supporting ring corresponding to the fixed saddle, the limiting strip 21 is vertical to the axis direction of the tank body, and the limiting strip 21 is embedded in a groove on the fixed pressure-bearing wood block 18; epoxy cement is filled between the supporting ring and the limiting strip corresponding to the fixed saddle and the fixed bearing wood block 18. When the ship jolts, the fixed saddle limits the tank body in the length direction.
The sliding saddle 16 comprises a sliding saddle panel 22, an upper pressure-bearing wood block 23 and a lower pressure-bearing wood block 24, wherein baffle plates 25 are welded on the left side and the right side of the sliding saddle panel 22 respectively, the lower pressure-bearing wood block 24 is installed on the top of the sliding saddle panel 22 and limited by the baffle plates 25, and epoxy cement 26 is filled between the lower pressure-bearing wood block 24 and the sliding saddle panel 22 as well as between the lower pressure-bearing wood block and the corresponding baffle plates 25; a pair of baffles 27 are welded on the supporting ring corresponding to the upper pressure-bearing wood block 23, the upper pressure-bearing wood block 23 is installed at the bottom of the corresponding supporting ring and limited by the pair of baffles 27, and epoxy cement is filled between the upper pressure-bearing wood block 23 and the corresponding supporting ring and between the upper pressure-bearing wood block and the baffles 27; the upper bearing wood block 23 is supported on the top surface of the lower bearing wood block 24, the lower bearing wood block 24 is larger than the upper bearing wood block 23, and a stainless steel plate 28 is clamped between the matching surfaces of the upper and lower bearing wood blocks 23,24, so that the strength of the upper bearing wood block is improved, and the rapid abrasion is prevented. When the ship bumps or the tank body is subjected to thermal barrier contraction, the upper and lower pressure-bearing wood blocks 23 and 24 can slightly displace in any direction on the plane of the stainless steel plate 28 between the matching surfaces of the upper and lower pressure-bearing wood blocks, so that deformation and stress concentration are prevented.
The bottom surfaces of the fixed saddle panel 17 and the sliding saddle panel 22 are supported by a saddle web 29 on the deck of the cabin. To increase the strength of the support, saddle brackets 30 are welded between the saddle webs 29 and the corresponding saddle panels, the saddle brackets 30 simultaneously welding the corresponding fixed or sliding saddle panels, the saddle webs 29 and the cabin deck. Since the fixed pressure-bearing blocks 21 on the fixed saddle 16 are fixed, the height of the baffle plates 19 on both sides is more than half of the height of the fixed pressure-bearing blocks, and in order to improve the strength of the baffle plates 19, the anti-roll toggle plates 31 are welded on the outer sides of the baffle plates, and the anti-roll toggle plates 31 are welded between the corresponding baffle plates 19 and the saddle toggle plates 30.
Claims (9)
1. A double-lug LNG liquid tank comprises a tank body and two saddles, wherein the tank body is supported on the two saddles, the tank body is formed by welding and splicing two symmetrical half tanks, and the two half tanks are separated by a longitudinal bulkhead; the two saddles are respectively a fixed saddle and a sliding saddle, and the utility model is characterized in that a supporting ring is respectively arranged between the tank body and the two saddles, and the supporting ring is welded on the outer wall of the tank body; the fixed saddle comprises a fixed saddle panel and a fixed pressure-bearing wood block, the fixed pressure-bearing wood block is supported on the fixed saddle panel, a downward convex limiting strip is arranged at the center of the bottom of a supporting ring corresponding to the fixed saddle, and the limiting strip is embedded in the fixed pressure-bearing wood block; the sliding saddle comprises a sliding saddle panel, an upper pressure-bearing wood block and a lower pressure-bearing wood block, wherein the lower pressure-bearing wood block is arranged at the top of the sliding saddle panel, the upper pressure-bearing wood block is arranged at the bottom of a corresponding supporting ring, the upper pressure-bearing wood block is supported on the lower pressure-bearing wood block, and a stainless steel plate is clamped between the matching surfaces of the upper pressure-bearing wood block and the lower pressure-bearing wood block.
2. The binaural LNG tank as claimed in claim 1, wherein the fixed bearing wood blocks are limited by baffles welded to both sides of the fixed saddle panel, and epoxy cement is filled between the fixed bearing wood blocks and the saddle panel and between the fixed bearing wood blocks and the baffles; epoxy cement is filled between the fixed pressure-bearing wood blocks and the support rings and between the fixed pressure-bearing wood blocks and the limiting strips.
3. The binaural LNG tank of claim 1, wherein the lower bearing wood blocks are retained by a pair of baffles on either side of a sliding saddle panel, and the upper bearing wood blocks are retained on either side by a pair of baffles welded to corresponding support rings; epoxy cement is filled between the lower pressure-bearing wood block and the sliding saddle panel as well as between the lower pressure-bearing wood block and the corresponding baffle plate; epoxy cement is filled between the upper pressure-bearing wood block and the corresponding supporting ring and baffle.
4. A binaural LNG tank according to claim 1, characterized in that the bottom surfaces of the fixed saddle panels and sliding saddle panels are fixedly connected to the deck by saddle webs and saddle brackets, respectively.
5. A binaural LNG tank according to claim 4, characterized in that anti-roll brackets are welded between the baffles on both sides of the fixed saddle panel and the corresponding saddle brackets.
6. The double-lug LNG tank of claim 1, wherein reinforcing rings are welded to the inner wall of the tank body at positions corresponding to the supporting rings; a swinging bulkhead and a vacuum ring are welded in the tank body, the swinging bulkhead is positioned at the center of the tank body in the axial direction, and a plurality of liquid passing holes are uniformly distributed and processed on the swinging bulkhead; the vacuum rings are distributed on two sides of the oscillating bulkhead and are positioned between the oscillating bulkhead and the reinforcing ring.
7. The double-lug LNG tank as claimed in claim 1, wherein the two sides of the support ring are respectively provided with a lower floating stop seat, the bulkheads on the two sides of the tank body are correspondingly provided with upper floating stop seats, the upper floating stop seats are arranged right above the lower floating stop seats, and a floating stop block is filled between the upper floating stop seats and the lower floating stop seats.
8. The binaural LNG tank as claimed in claim 1, wherein the half tank comprises a middle section and spherical end enclosures at two ends of the middle section, the bottom of the middle section is provided with a liquid collecting well, and the top of the middle section is provided with an air chamber.
9. A binaural LNG tank according to claim 1, characterized in that the outer wall of the tank is wrapped with an insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110318912.3A CN112849342A (en) | 2021-03-25 | 2021-03-25 | Double-lug LNG tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110318912.3A CN112849342A (en) | 2021-03-25 | 2021-03-25 | Double-lug LNG tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112849342A true CN112849342A (en) | 2021-05-28 |
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ID=75992856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110318912.3A Pending CN112849342A (en) | 2021-03-25 | 2021-03-25 | Double-lug LNG tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112849342A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113501087A (en) * | 2021-06-25 | 2021-10-15 | 沪东中华造船(集团)有限公司 | Detachable ship deck cargo tank and installation method thereof |
| CN114104192A (en) * | 2021-11-25 | 2022-03-01 | 中国船舶工业集团公司第七0八研究所 | C-shaped LNG fuel tank saddle of container ship |
-
2021
- 2021-03-25 CN CN202110318912.3A patent/CN112849342A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113501087A (en) * | 2021-06-25 | 2021-10-15 | 沪东中华造船(集团)有限公司 | Detachable ship deck cargo tank and installation method thereof |
| CN114104192A (en) * | 2021-11-25 | 2022-03-01 | 中国船舶工业集团公司第七0八研究所 | C-shaped LNG fuel tank saddle of container ship |
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