CN203147272U - Tank top structure of large low-temperature storage tank - Google Patents
Tank top structure of large low-temperature storage tank Download PDFInfo
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- CN203147272U CN203147272U CN 201320127780 CN201320127780U CN203147272U CN 203147272 U CN203147272 U CN 203147272U CN 201320127780 CN201320127780 CN 201320127780 CN 201320127780 U CN201320127780 U CN 201320127780U CN 203147272 U CN203147272 U CN 203147272U
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- tank
- storage tank
- tank deck
- tank top
- rod member
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Abstract
The utility model discloses a tank top structure of a large low-temperature storage tank. The tank top structure comprises an outer tank top and an inner tank top, wherein the outer tank top is of a reticulated shell structure and comprises a reticulated shell and a skin; the inner tank top is of a suspended ceiling structure; the reticulated shell is a single-layer spherical reticulated shell, and the curvature radius is 0.8-1.2 times the diameter of the outer tank of the storage tank; the skin covers the outer surface of the reticulated shell; the inner tank top comprises a suspended ceiling plate and an annular connection plate arranged thereon; the annular connection plate is connected with the outer tank top through a hanging rod, so that the inner tank top is suspended at the lower part of the outer tank top; and the reticulated shell of the outer tank top is fixedly connected with the outer tank of the storage tank through a connecting piece, and the outer tank of the storage tank supports the tank top structure. According to the tank top structure disclosed by the utility model, the outer tank top is of an optimized single-layer spherical reticulated shell structure, the rod members are uniformly arranged, a small amount of steel is consumed, a great tank top load can be effectively borne, and the safety is high. An existing welding vertical flat-bottom cylindrical double-layer metal low-temperature liquid storage tank can be developed to a large one.
Description
Technical field
The utility model relates to a kind of tank deck structure of large-scale double-level-metal cryogenic liquid storage tank.
Background technique
The vertical flat cylindrical shape cryogenic liquid storage tank of existing welding adopts the double-level-metal structure more, and its top is pair vault constructions that adopt also more, and the vault construction of this low-temperature storage tank is applicable to that volume is below 5000 cubic metres.Large-scale low-temperature storage tank for 10000 cubic metres and above volume, can produce two problems during interior jar of employing vault: the one, because interior jar will support interior vault, bearing load increases, requirement of strength is higher, the tank body wall thickness increases in making, interior jar for the stainless steel that adopts low temperature material or nickel steel material can increase construction cost greatly; The 2nd, interior jar of vault self also need possess favorable rigidity and stability, needs to adopt the low temperature resistant section bar of big composite bending modulus to build interior jar vault at this moment, also can cause the construction cost of vault to increase.Based on above analysis, when building large-scale double-level-metal cryogenic liquid storage tank, adopt the structure of furred ceiling in the outer net shell top comparatively reasonable.
The model utility content
The utility model provides a kind of tank deck structure of large-scale low-temperature storage tank, and the vertical flat cylindrical shape double-level-metal cryogenic liquid storage tank of existing welding can be developed towards the maximization direction.
The technological scheme that the utility model adopts is as follows: a kind of tank deck structure of large-scale low-temperature storage tank, comprise outer tank deck and interior tank deck, and described outer tank deck is latticed shell structure, described interior tank deck is ceiling structure.
Described outer tank deck comprises net shell and covering, and described net shell is the individual layer sphere net case, and radius of curvature is the outer jar diameter of 0.8 ~ 1.2 times of described storage tank, and described covering is covered in net shell outer surface;
Tank deck comprises ceiling board and the annular connecting plate that arranges on it in described; This annular connecting plate is connected with outer tank deck by suspension rod, makes described interior tank deck be suspended in described outer tank deck bottom;
The net shell of described outer tank deck is affixed by link and outer jar of described storage tank, and jar supports described tank deck structure outside the described storage tank and make.
Described net shell comprises section bar link and connecting plate; Described section bar link comprises broadwise rod member and warp-wise rod member, and this broadwise rod member and warp-wise rod member fix as one by first or second connecting plate.
Described section bar link is any one or more the combination in H-shaped material, H section bar, angle section, the U channel section.
Described covering adopts sector row plate welding or adopts rectangular plate to be welded by the staggered row of man type plate.
Described ceiling board adopts rectangular plate to be welded by the staggered row of man type plate.
Tank body adopts flexible sealing structure in described ceiling board and the described storage tank, and thermal insulating material is laid on this ceiling board top.
Advantage of the present utility model is: one, outer tank deck has adopted the individual layer sphere net case structure of optimizing, and its rod member arranges that evenly steel consumption is little, can effectively bear big tank deck load, the margin of safety height.Two, rod member through prefabricated shaping, can realize that good line contacts by section bar with covering, and it is attractive in appearance that outer tank deck is shaped.Three, the interior tank deck of the outer tank deck of latticed shell structure and ceiling structure links together by suspension rod, and is simple in structure, and site operation is convenient, and reliable performance is stable.Four, but all members of top structure are all finished in prefabrication, are transported to site operation and install, and have not only effectively reduced construction cost, have shortened construction period simultaneously.
Description of drawings
Fig. 1 is the tank deck structural representation of a kind of large-scale low-temperature storage tank of the utility model;
Fig. 2 is the outer tank deck latticed shell structure plan view of the utility model;
Fig. 3 is a kind of radially rod member of the utility model and broadwise rod member connection diagram;
Fig. 4 is radially rod member and broadwise rod member connection diagram of the utility model another kind;
Fig. 5 is that the utility model covering adopts rectangular plate by " people " font row plate lap welding schematic representation;
Fig. 6 is that the utility model covering adopts sector row plate lap welding schematic representation;
Fig. 7 is the connection diagram of the utility model annular girder guide rail and net shell;
Fig. 8 is the connection diagram of radially rod member Yu the outer tank body of the utility model net shell.
Among the figure: 1, net shell 1-1, broadwise rod member 1-2, radially rod member 1-3, the first connecting plate 1-4, second connecting plate 2, covering 3, annular girder guide rail 4, upper connector 5, middle link 6, link 7, outer tank body 8, pressure-resistent ring 9, ceiling board 10, annular connecting plate 11, suspension rod 12, furred ceiling connecting plate 13, interior tank body 14, thermal insulating material down
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the tank deck structure of large-scale low-temperature storage tank is mainly by net shell 1, covering 2, annular girder guide rail 3, ceiling board 9 and a plurality of link are formed, whole tank deck is used, in, following link 4,5 and 6 are fixed on the pressure-resistent ring 8 of outer tank body 7 upper ends, radially the furred ceiling connecting plate 12 on the rod member 1-2 and the annular connecting plate 10 on the ceiling board 9 are connected furred ceiling bar 11 with the net shell respectively, thereby ceiling board is suspended in outer tank deck bottom, ceiling board 9 adopts flexible sealing with interior tank body 13, ceiling board is provided with thermal insulating material 14, forms the interior tank deck with certain sealing and heat insulating ability.Annular girder guide rail 3 is connected on the radially rod member 1-2 of net shell by two connecting plates, is used for installing interior jar.
As shown in Figure 2, the broadwise rod member 1-1 of described net shell 1 and radially rod member 1-2 be assembled into net shell 1 after prefabricated by certain radius of curvature, this radius of curvature is the outer jar diameter of 0.8 or 0.85 or 0.9 or 0.95 or 1.0 or 1.05 or 1.1 or 1.15 or 1.2 times of described storage tank, the outer jar diameter of described storage tank is more big, and value is more little; Otherwise the outer jar diameter of storage tank is more little, and value is more big.Radially the quantity of rod member 1-2 can be come by the following method specifically to determine according to outer jar diameter: outer jar diameter is during less than 50 meters, radially rod member 1-2 outside the spacing of jar circumferential direction be 1.5 meters ~ 3.0 meters; When an outer jar of diameter is 50 meters ~ 100 meters, radially rod member 1-2 outside the spacing of jar circumferential direction be 2.5 meters ~ 3.5 meters; Outer jar of diameter be during greater than 100 meters, radially rod member 1-2 outside the spacing of jar circumferential direction be 3.0 meters to 4.5 meters.Described covering is covered in net shell 1 outer surface.
The broadwise rod member 1-1 of described section bar link and radially the material of rod member 1-2 can be carbon steel, aluminium, aluminum alloy etc., but be not limited to the above material.
As shown in Figure 3, described broadwise rod member 1-1 adopts angle section, when radially rod member 1-2 adopts H-shaped material, three side welds of the first connecting plate 1-3 are connected on three plate faces in the rod member 1-2 H-shaped material groove radially, the first connecting plate 1-3 is connected with bolt with the angle section of broadwise rod member 1-1, the peripheral firm welding of connecting plate and angle section behind the assembled formation.
As shown in Figure 4, broadwise rod member 1-1 and when radially rod member 1-2 all adopts H-shaped material, three limits of the second connecting plate 1-4, one end are welded in respectively on three plate faces in the rod member 1-2 H-shaped material groove radially, the other end is connected with bolt with broadwise rod member 1-1 H-shaped material end web, and the welding of the end periphery of connecting plate and broadwise rod member 1-1 H-shaped material firmly behind the assembled formation.Certainly, the section bar link of described net shell 1 is broadwise rod member 1-1 with rod member 1-2 radially with the first or second connecting plate 1-3 or 1-4 can adopt welding or bolt is connected or the Placement of bolt connection and welding and usefulness.
As shown in Figure 5, the rectangular plate covering is by the welding of the staggered row of " people " font plate overlap joint.
As shown in Figure 6, the sector covering is by the welding of fan-shaped row's plate overlap joint.
Described covering adopts carbon steel to make.
As shown in Figure 7, a few annular connecting plates 10 are set on the ceiling board 9, net shell 1 radially rod member 1-2 is provided with furred ceiling connecting plate 12, furred ceiling bar 11 upper ends and 12 welding of furred ceiling connecting plate, and lower end and annular connecting plate 10 welding hang on ceiling board on the net shell 1.The material of described ceiling board is low temperature material, can be aluminium, aluminum alloy, stainless steel etc.
As shown in Figure 8, the top plate of the radially rod member 1-2 of net shell 1, web, lower panel are connected with the pressure-resistent ring 8 on outer tank body 7 tops with upper connector 4, middle link 5, following link 6 respectively, and net shell 1 is fixed on the outer tank body.Pressure-resistent ring 8 is welded to connect with the top girth sheets of outer tank body 7.
Claims (7)
1. the tank deck structure of a large-scale low-temperature storage tank comprises outer tank deck and interior tank deck, it is characterized in that: described outer tank deck is latticed shell structure, and described interior tank deck is ceiling structure.
2. the tank deck structure of a kind of large-scale low-temperature storage tank according to claim 1, it is characterized in that: described outer tank deck comprises net shell (1) and covering (2), described net shell (1) is the individual layer sphere net case, radius of curvature is the outer jar diameter of 0.8 ~ 1.2 times of described storage tank, and described covering (2) is covered in net shell (1) outer surface;
The annular connecting plate (10) that tank deck comprises ceiling board (9) and arranges on it in described; This annular connecting plate (10) is connected with outer tank deck by suspension rod (11), makes described interior tank deck be suspended in described outer tank deck bottom;
The net shell (1) of described outer tank deck is affixed by link and outer jar of described storage tank, and jar supports described tank deck structure outside the described storage tank and make.
3. according to the tank deck structure of the described a kind of large-scale low-temperature storage tank of claim 2, it is characterized in that: described net shell (1) comprises section bar link and connecting plate; Described section bar link comprises broadwise rod member (1-1) and warp-wise rod member (1-2), and this broadwise rod member (1-1) and warp-wise rod member (1-2) fix as one by first or second connecting plate (1-3 or 1-4).
4. according to the tank deck structure of the described a kind of large-scale low-temperature storage tank of claim 3, it is characterized in that: described section bar link is any one or more the combination in H-shaped material, H section bar, angle section, the U channel section.
5. according to the tank deck structure of the described a kind of large-scale low-temperature storage tank of claim 2, it is characterized in that: described covering (2) adopts sector row plate welding or adopts rectangular plate to be welded by the staggered row of man type plate.
6. according to the tank deck structure of the described a kind of large-scale low-temperature storage tank of claim 2, it is characterized in that: described ceiling board (9) adopts rectangular plate to be welded by the staggered row of man type plate.
7. according to the tank deck structure of the described a kind of large-scale low-temperature storage tank of claim 6, it is characterized in that: described ceiling board (9) adopts flexible sealing structure with the interior tank body (13) of described storage tank, and thermal insulating material (14) is laid on this ceiling board (9) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127780 CN203147272U (en) | 2013-03-20 | 2013-03-20 | Tank top structure of large low-temperature storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127780 CN203147272U (en) | 2013-03-20 | 2013-03-20 | Tank top structure of large low-temperature storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203147272U true CN203147272U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320127780 Expired - Fee Related CN203147272U (en) | 2013-03-20 | 2013-03-20 | Tank top structure of large low-temperature storage tank |
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| CN (1) | CN203147272U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533003A (en) * | 2014-12-25 | 2015-04-22 | 重庆飞航铝业有限公司 | Suspended ceiling of large-scaled storage tank |
| CN108025803A (en) * | 2015-10-05 | 2018-05-11 | 川崎重工业株式会社 | Liquid gas storage tank peculiar to vessel and the liquefied gas carry vessel for possessing the liquid gas storage tank peculiar to vessel |
| CN114251596A (en) * | 2021-05-14 | 2022-03-29 | 海洋石油工程股份有限公司 | Large LNG storage tank dome plate connecting method |
-
2013
- 2013-03-20 CN CN 201320127780 patent/CN203147272U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533003A (en) * | 2014-12-25 | 2015-04-22 | 重庆飞航铝业有限公司 | Suspended ceiling of large-scaled storage tank |
| CN108025803A (en) * | 2015-10-05 | 2018-05-11 | 川崎重工业株式会社 | Liquid gas storage tank peculiar to vessel and the liquefied gas carry vessel for possessing the liquid gas storage tank peculiar to vessel |
| CN108025803B (en) * | 2015-10-05 | 2019-10-08 | 川崎重工业株式会社 | Liquid gas storage tank peculiar to vessel and the liquefied gas carry vessel for having the liquid gas storage tank peculiar to vessel |
| CN114251596A (en) * | 2021-05-14 | 2022-03-29 | 海洋石油工程股份有限公司 | Large LNG storage tank dome plate connecting method |
| CN114251596B (en) * | 2021-05-14 | 2023-08-22 | 海洋石油工程股份有限公司 | Large LNG storage tank dome plate connection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20180320 |