CN217178256U - Dome and ceiling integrated structure for LNG storage tank and LNG storage tank - Google Patents
Dome and ceiling integrated structure for LNG storage tank and LNG storage tank Download PDFInfo
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- CN217178256U CN217178256U CN202220260787.5U CN202220260787U CN217178256U CN 217178256 U CN217178256 U CN 217178256U CN 202220260787 U CN202220260787 U CN 202220260787U CN 217178256 U CN217178256 U CN 217178256U
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Abstract
The utility model relates to a dome, furred ceiling integral structure and LNG storage tank for LNG storage tank, including furred ceiling and dome, the furred ceiling is circular shape latticed shell structure, the dome is arched latticed shell structure, the dome with connect through the bracing piece subassembly between the furred ceiling and form as an organic whole. Compared with the conventional dome and the conventional suspended ceiling which are commonly adopted in the existing LNG industry, the dome and the suspended ceiling of the LNG storage tank are integrated, an integrated truss system is formed by manufacturing the rod assemblies, the structural mechanical property is fully utilized, the overall stability is enhanced, the waste of materials in the welding process is reduced, a large amount of construction cost can be saved, meanwhile, due to the influence of different construction methods, the construction period can be shortened by flexibly adjusting the construction scheme, the cost is reduced, and the economic benefit is improved.
Description
Technical Field
The utility model relates to a storage facilities field is carried to LNG (liquefied natural gas), especially relates to a dome, furred ceiling integral structure and LNG storage tank for LNG storage tank.
Background
Liquefied Natural Gas (LNG) is clean energy which is obtained by cooling conventional natural gas to below-111 ℃ under normal pressure through a low-temperature liquefaction process and separating a large amount of pollution elements such as sulfur, phosphorus and the like, and takes methane as a main component. The low temperature effect causes the storage state to change greatly, the volume is compressed to about 1/111, and the density is about 481kg/m 3 Is colorless, odorless and non-corrosive.
In the LNG industry chain, safe storage is one of the key links. The common suspended ceiling full-capacity storage tank is used for storing low-temperature liquefied natural gas, has large investment, dense technology and high safety requirement, and is a core storage facility in an LNG industrial chain. At present, conventional LNG holds storage tank dome, furred ceiling major structure entirely and comprises four bibliographic categories: the dome longitudinal beam, the dome ring beam, the vertical pull rod and the aluminum plate.
The standard requirements of welding and installation control in the manufacturing process of a dome and a suspended ceiling of a conventional LNG full-capacity storage tank lead to great limitation on the progress of construction period control, and the construction efficiency of the LNG storage tank cannot be greatly shortened. In addition, with the increase of the tank capacity of the storage tank, the construction, cutting and welding on site cause great waste on high materials, so that the construction cost of the storage tank is high. This limits the economics of the LNG industry to some extent.
Meanwhile, in the aspect of structural stress, the self weight of the aluminum plate, the elastic felt and the like is transmitted to the dome-shaped steel by the pull rod, and the dome-shaped steel bears the self weight of the upper concrete at the same time. Therefore, in the traditional dome and ceiling structure scheme, the dome bears all vertical loads, and the requirements on the model and the plate thickness of the dome section steel are high in order to meet the structural stability. On the other hand, the aluminum plate is free and not limited in the horizontal direction, and the structure has certain instability.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide a dome, furred ceiling integral structure for LNG storage tank promotes structure rigidity and mechanical properties, strengthens the bearing capacity of dome structure by a wide margin, can fundamentally break through the restriction that the jar held, and another purpose provides an LNG storage tank.
In order to achieve the purpose, the utility model adopts the following technical proposal:
in a first aspect, the utility model provides a dome, furred ceiling integral structure for LNG storage tank, including furred ceiling and dome, the furred ceiling includes a plurality of ring beam pipe fittings and a plurality of longeron pipe fittings, a plurality of the ring beam pipe fittings concentric and interval lay, a plurality of longeron pipe fittings along radial and interval lay, a plurality of the fixed connection between ring beam pipe fittings and a plurality of longeron pipe fittings forms into the net shell structure;
the dome comprises a plurality of dome annular beams and a plurality of dome longitudinal beams, wherein the dome annular beams are concentric, the dome longitudinal beams are arc-shaped, each dome longitudinal beam is arranged at intervals along the radial direction, and the dome annular beams and the dome longitudinal beams are fixedly connected to form an arched latticed shell structure;
the dome and the suspended ceiling are connected into a whole through the supporting rod assembly.
Preferably, the support rod assembly comprises a plurality of outer support rods and a plurality of inner inclined support rods, the bottoms of the outer support rods and the inner inclined support rods are connected with the nodes of the suspended ceiling through bolts, and the tops of the outer support rods and the inner inclined support rods are connected with the dome through bolts to form a triangular support structure;
every the node corresponds interior diagonal brace of a montant, two pin and a plurality of pin outer bracing piece, one montant, two in the pin diagonal brace and a plurality of the pin outer bracing piece with correspond node fixed connection, the top with connect between the dome and form four triangle-shaped supporting structure.
Preferably, the ring beam pipe fittings are 48-72 circles, the longitudinal beam pipe fittings are 2-4 circles, and the longitudinal beam pipe fittings are multiples of 2.
Preferably, the longitudinal beam pipe fitting and the ring beam pipe fitting are both made of stainless steel round steel pipes, the outer diameter of each round steel pipe is 25 mm-41 mm, and the wall thickness of each round steel pipe is 2 mm-5 mm.
Preferably, the radius of curvature of the dome stringers is 1.8 to 1.2 times the diameter of the LNG storage tank.
Preferably, the number of the dome longitudinal beams is 91-144, the number of the dome ring beams is 9, and the number of the dome longitudinal beams is a multiple of 4.
Preferably, the dome longitudinal beams and the dome ring beams are made of wide-flange H-shaped steel, and the size range of the wide-flange H-shaped steel is HW 151 x 151 to HW411 x 411.
Preferably, the truss outer support and the truss inner inclined support are both made of stainless steel round steel pipe fittings, the outer diameter of each stainless steel round steel pipe fitting is 21-32 mm, and the wall thickness of each stainless steel round steel pipe fitting is 2-5 mm.
Preferably, still include aluminum plate and elastic felt, aluminum plate and elastic felt all lay on the furred ceiling is used for provide cold insulation for LNG storage tank.
In a second aspect, the present invention further provides a storage tank, including a tank body and the dome of LNG storage tank, furred ceiling integral structure, the dome of LNG storage tank, furred ceiling integral structure with the top sealing connection of the tank body.
The utility model discloses owing to take above technical scheme, it has following advantage:
compared with the conventional dome and the suspended ceiling which are generally adopted in the existing LNG industry, the dome and the suspended ceiling of the storage tank form an integrated truss system by manufacturing the rod components, the structural mechanical property is fully utilized, the overall stability is enhanced, the waste of materials in the welding process is reduced, a large amount of construction cost can be saved, meanwhile, due to the influence of different construction methods, the construction period can be shortened by flexibly adjusting the construction scheme, the cost is reduced, and the economic benefit is improved.
This can satisfy LNG full-capacity storage tank furred ceiling simultaneously and as the bearing structure of elastic felt, carry out cold insulation sealing control to the LNG storage tank, make the contribution for LNG full-capacity storage tank cold insulation system, can show again and reduce construction cost, improve the building efficiency.
Drawings
Fig. 1 is a schematic cross-sectional view of a dome and ceiling integrated structure of an LNG storage tank according to an embodiment of the present invention;
fig. 2 is a perspective view of a dome and ceiling integrated structure of an LNG storage tank according to an embodiment of the present invention;
FIG. 3 is a top view of a drop ceiling;
fig. 4 is a top view of the dome.
Description of reference numerals:
the suspended ceiling comprises a 1-suspended ceiling, 2-domes, 3-strut assemblies, 11-ring beam pipe fittings, 12-longitudinal beam pipe fittings, 21-dome longitudinal beams, 22-dome ring beams, 31-outer strut rods, 32-vertical rods and 33-inner inclined strut rods.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used to define elements only for convenience in distinguishing between the elements, and unless otherwise stated, are not intended to imply any particular meaning or importance to the contrary.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a dome of LNG storage tank, furred ceiling integral structure, for integration truss structure system, make full use of structural mechanics performance, reinforcing overall stability, the waste of material in the reduction welding process can practice thrift a large amount of construction costs, simultaneously, receives the different influence of construction method, can shorten the construction period through adjusting the construction scheme in a flexible way. Meanwhile, the suspended ceiling of the LNG full-capacity storage tank can be used as a supporting structure of the elastic felt, the LNG storage tank is subjected to cold insulation sealing control, contribution is made to an LNG full-capacity tank cold insulation system, the construction cost can be remarkably reduced, and the construction efficiency can be improved.
As shown in fig. 1, fig. 1 is a dome and ceiling integrated structure of an LNG storage tank using a 22 ten thousand square LNG full-capacity storage tank provided by the embodiment of the present invention, which includes a ceiling 1 and a dome 2, wherein the ceiling 1 is a circular latticed shell structure, the dome 2 is an arched latticed shell structure, and the dome 2 is connected with the ceiling 1 through a support rod 3 to form a whole.
The utility model discloses in through inciting somebody to action LNG storage tank deck sets up to integration truss structure system, and a large amount of construction costs can be practiced thrift to make full use of structural mechanics performance, reinforcing overall stability, the waste of material in the reduction welding process, simultaneously, receives the different influence of construction method, can shorten the construction period through adjusting the construction scheme in a flexible way.
The suspended ceiling 1 comprises a plurality of ring beam pipe fittings 11 and a plurality of longitudinal beam pipe fittings 12, the ring beam pipe fittings 11 are arranged concentrically and at intervals, the longitudinal beam pipe fittings 12 are arranged along the radial direction at intervals, and the ring beam pipe fittings 11 are fixedly connected with the longitudinal beam pipe fittings 12.
1 preferred stainless steel circular steel tube welding that adopts of furred ceiling forms, the preferred 25mm to 41mm of external diameter of stainless steel circular steel tube, the preferred 2.1mm to 5.1mm of wall thickness, and the circular beam pipe fitting 11 welds the circular shape latticed shell structure with longeron pipe fitting 12 in proper order, provides aluminum plate and lays the space.
The longitudinal beam pipe 12 is in a multiple of 2, preferably 48 to 72 turns, and the ring beam pipe 11 is preferably 2 to 4 turns.
The dome 2 comprises a plurality of dome annular beams 22 and a plurality of dome longitudinal beams 21, the plurality of dome annular beams 22 are concentric, each dome longitudinal beam 21 is arc-shaped and is distributed along the radial direction, and the dome annular beams 22 and the dome longitudinal beams 21 are fixedly connected to form the arched latticed shell structure.
The radius of curvature of the dome stringers 21 is 1.8 to 1.2 times the diameter of the LNG storage tank.
The dome longitudinal beams 21 and the dome annular beams 22 are made of steel, preferably wide-flange H-shaped steel is adopted, the type of the H-shaped steel can be selected from the range of HW 151 x 151 to HW411 x 411, and the specific type is adjusted according to the size of an LNG storage tank.
The dome longitudinal beam 21 can also be arranged to include a main longitudinal beam and a secondary longitudinal beam, the main longitudinal beam is radially arranged and passes through the center of a circle, two ends of the secondary longitudinal beam are respectively connected with the dome annular beams arranged at intervals, and the length of the secondary longitudinal beam is smaller than that of the main longitudinal beam. The dome longitudinal beams 21 are multiplied by 4 longitudinal beams, the number of the dome longitudinal beams 21 is preferably 91-144, 9 circles of dome annular beams are arranged, and the dome annular beams 22 and the dome longitudinal beams 21 are sequentially welded to form a latticed shell structure, so that a top lining plate laying space is provided.
The supporting rod assembly 2 comprises an outer supporting rod 31, vertical rods 32 and inner inclined supporting rods 33, and triangular supports are formed among the outer supporting rod 31, the vertical rods 32 and the inner inclined supporting rods 33 and the dome 2. Specifically, the outer support rods 31, the vertical rods 32 and the inner inclined support rods 33 are connected with one node of the suspended ceiling 1 through bolts, and the top of the suspended ceiling 1 is connected with the dome 2 to form four triangular support structures, so that the structural stability is further improved.
Compared with the conventional dome and the suspended ceiling which are commonly adopted in the existing LNG industry, the dome and the suspended ceiling aluminum plate of the storage tank are connected through the supporting piece and the suspended ceiling ring beam pipe fitting to form an integrated truss system, and the elastic felt is laid for sealing. The integrated truss structure system fully utilizes the structural mechanical property, enhances the overall stability, reduces the waste of materials in the welding process, can save a large amount of construction cost, and can shorten the construction period by flexibly adjusting the construction scheme under the influence of different construction methods.
The outer truss supporting rods 31 and the inner truss supporting rods 33 are made of stainless steel round steel tubes, the outer diameter is preferably 21-32 mm, and the wall thickness is preferably 2.1-5.1 mm. The dome 2 and the suspended ceiling 1 are connected by bolts through outer support rods 31 and inner inclined support rods 33.
Another embodiment of the utility model provides a LNG storage tank, including a jar body and LNG storage tank's dome, furred ceiling integral structure, LNG storage tank's dome, furred ceiling integral structure with the top sealing connection of the jar body.
The utility model provides a dome, furred ceiling integral structure for LNG storage tank can solve conventional traditional LNG storage tank furred ceiling, dome structure and have along with the storage tank diameter increase, and the material is extravagant, the cost is high, and welding installation difficulty, construction cycle are long, the unstable problem of structure, and pass through the structural system of equipment ensures the safety of storage tank cold insulation heat insulation system, improves structural stability.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A dome and ceiling integrated structure for an LNG storage tank is characterized by comprising a ceiling and a dome,
the suspended ceiling comprises a plurality of ring beam pipe fittings and a plurality of longitudinal beam pipe fittings, wherein the ring beam pipe fittings are arranged concentrically and at intervals, the longitudinal beam pipe fittings are arranged along the radial direction at intervals, and the ring beam pipe fittings and the longitudinal beam pipe fittings are fixedly connected to form a latticed shell structure;
the dome comprises a plurality of dome annular beams and a plurality of dome longitudinal beams, the plurality of dome annular beams are concentric, the dome longitudinal beams are arc-shaped, each dome longitudinal beam is arranged at intervals along the radial direction, and the plurality of dome annular beams and the plurality of dome longitudinal beams are fixedly connected to form an arched latticed shell structure;
the dome and the suspended ceiling are connected into a whole through the supporting rod assembly.
2. The integrated structure of a dome and a ceiling for an LNG storage tank of claim 1, wherein the support rod assembly comprises a plurality of outer support rods and inner support rods, the bottom of the outer support rods and the inner support rods are connected with the nodes of the ceiling by bolts, and the top of the outer support rods and the inner support rods are connected with the dome by bolts to form a triangular support structure;
every the node corresponds interior diagonal brace of a montant, two pin and a plurality of pin outer bracing piece, one montant, two in the pin diagonal brace and a plurality of the pin outer bracing piece with correspond node bolted connection, the top with connect between the dome and form four triangle-shaped bearing structure.
3. The integrated dome and ceiling structure of claim 1, wherein the ring beam pipe is 48-72 turns, the longitudinal beam pipe is 2-4 turns, and the longitudinal beam pipe is a multiple of 2.
4. The integrated structure of a dome and a ceiling for an LNG storage tank of claim 1, wherein the longitudinal beam pipe fitting and the ring beam pipe fitting are both made of stainless steel round steel pipes, the outer diameter of each round steel pipe is 25 mm-40 mm, and the wall thickness of each round steel pipe is 2 mm-5 mm.
5. The integrated dome and ceiling structure of claim 1, wherein the radius of curvature of the longitudinal beam of the dome is 0.8 to 1.2 times the diameter of the LNG storage tank.
6. The integrated dome and ceiling structure for an LNG storage tank of claim 1, wherein the number of the dome longitudinal beams is 96-144, the number of the dome ring beams is 9, and the number of the dome longitudinal beams is a multiple of 4.
7. The integrated dome and ceiling structure for an LNG storage tank of claim 1, wherein the dome longitudinal beams and the dome ring beams are made of wide-flange H-section steel having a size ranging from HW150 x 150 to HW400 x 400.
8. The integrated structure of a dome and a ceiling of an LNG storage tank of claim 2, wherein the outer trusses and the inner trusses are made of stainless steel circular steel pipe fittings, the outer diameter of each stainless steel circular steel pipe fitting is 20mm to 32mm, and the wall thickness of each stainless steel circular steel pipe fitting is 2mm to 5 mm.
9. The integrated dome and ceiling structure of claim 1, further comprising an aluminum plate and an elastic felt, both of which are laid on the ceiling for providing cold insulation to the LNG storage tank.
10. A storage tank comprising a tank body and the integrated dome-ceiling structure of the LNG storage tank as claimed in any one of claims 1 to 9, wherein the integrated dome-ceiling structure of the LNG storage tank is hermetically connected to the top of the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220260787.5U CN217178256U (en) | 2022-02-08 | 2022-02-08 | Dome and ceiling integrated structure for LNG storage tank and LNG storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220260787.5U CN217178256U (en) | 2022-02-08 | 2022-02-08 | Dome and ceiling integrated structure for LNG storage tank and LNG storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217178256U true CN217178256U (en) | 2022-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220260787.5U Active CN217178256U (en) | 2022-02-08 | 2022-02-08 | Dome and ceiling integrated structure for LNG storage tank and LNG storage tank |
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| Country | Link |
|---|---|
| CN (1) | CN217178256U (en) |
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- 2022-02-08 CN CN202220260787.5U patent/CN217178256U/en active Active
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