CN205026387U - Furred ceiling structure of liquefied natural gas storage tank - Google Patents
Furred ceiling structure of liquefied natural gas storage tank Download PDFInfo
- Publication number
- CN205026387U CN205026387U CN201520285674.0U CN201520285674U CN205026387U CN 205026387 U CN205026387 U CN 205026387U CN 201520285674 U CN201520285674 U CN 201520285674U CN 205026387 U CN205026387 U CN 205026387U
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- Prior art keywords
- frame beam
- natural gas
- liquefied natural
- lng
- steel
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- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 43
- 238000003860 storage Methods 0.000 title claims abstract description 16
- 239000012774 insulation material Substances 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims description 30
- 239000000725 suspension Substances 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 17
- 229910000838 Al alloy Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 5
- 238000011900 installation process Methods 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a furred ceiling structure of liquefied natural gas storage tank, include: a set of jib, buckled plate and frame roof beam, the frame roof beam is whole arranges that the longeron and the ring beam junction of frame roof beam are provided with the rigid connection node respectively, link together through the connection plate into the structure of many pin frame around the Center circle, be connected through a set of jib between the dome of storage tank and the frame roof beam of furred ceiling, the middle part of every jib is provided with the two -way regulation head of threaded, is used for adjusting the levelness of furred ceiling in the installation, buckled plate and frame roof beam pass through rivet connection together, and the cold insulation material is laid to the buckled plate upper surface, the passing through on the buckled plate evenly transmits the frame roof beam from the heavy load of cold insulation material.
Description
Technical field
The utility model relates to LNG Liquefied natural gas field, in particular to a kind of ceiling structure of liquefied natural gas (LNG) tank.
Background technique
LNG (LNG Liquefied natural gas) storage tank is a kind of container of splendid attire low temperature liquid rock gas, under utilizing the low temperature below-165 DEG C, rock gas can normal pressure liquid form store principle design form.LNG storage tank is generally made up of inner canister, outer tank and cold insulation heat insulation layer.Inner canister is for storing low temperature liquid rock gas, and the top of inner canister, bottom and tank skin surrounding are all wrapped in cold insulation heat insulation layer.Outer tank is made up of outer tank skin and dome, and dome is fixed on outer tank skin top, and inner canister furred ceiling is suspended in dome steel structure by one group of pull bar.
Ceiling structure has flat surface configuration usually, is suspended on directly over inner canister, in order to support the thermoinsulation material of interior tank top, to reduce the heat transmission of cold conditions storage medium and external heat source, reduces the relative evaporation of LNG.Ceiling material should tolerate the minimum design temperature of medium, and the cold events effect that tank deck or any position of tank skin may occur under any possibility operating conditions.The topmost function of furred ceiling supports cold insulation material, the LNG Liquefied natural gas preventing from cold insulation material from falling into inner canister storing.Meanwhile, furred ceiling should be able to bear the construction load produced in furred ceiling and cold insulation material work progress, ensures the personal safety of workmen.
LNG storage tank technical development is in recent years rapid, and maximum-norm is increased to 16 ten thousand steres, 20 ten thousand steres, even 30 ten thousand steres from 3 ten thousand steres.The ceiling structure matched with it, is also increased to 80,90 meters from diameter about 40 meters.Because traditional furred ceiling is all generally welded at the scene, under this size and scale, the traditional ceiling structure meeting standard specification and design safety seems more and more heavier, difficulty of construction is increasing, manufacturing cycle is more and more longer, cost is also more and more expensive, by technological innovation and need transform with the large scale development trend adapting to LNG storage tank.
Model utility content
The utility model provides a kind of ceiling structure of liquefied natural gas (LNG) tank, and can solve in LNG storage tank large scale development process, traditional ceiling structure Problems existing, meets design requirement.
The utility model provides a kind of ceiling structure of liquefied natural gas (LNG) tank, comprising: one group of suspension rod, corrugated sheet and frame beam, wherein:
The grid arrangement of described frame beam (comprising Main subrack to set a roof beam in place) be many Pin framework around the form of center circle, quadrilateral, triangle, ring, gilled rings shape, fan-shaped in the form that combines of one or more forms;
Suspension rod described in every root is connected between the dome of storage tank and described frame beam, described in every root, the upper end of suspension rod is suspended in dome steel structure, suspension rod lower end described in every root is articulated with on described frame beam, the neutral position of suspension rod described in every root is provided with threaded bidirectional modulation head, for adjusting the levelness of furred ceiling in installation process;
Described corrugated sheet and described frame beam pass through together with rivet interlacement, and described corrugated sheet upper surface lays cold insulation material, being evenly delivered on frame beam by described corrugated sheet from heavy load of cold insulation material.
Further, the material of described suspension rod is stainless steel or 9Ni steel or aluminum alloy.
Further, described corrugated sheet is one group of die mould aluminium alloy plate supporting cold insulation material, is riveted together between two, and is fixed on described frame beam by rivet after overlap joint.
Further, described frame beam is any one in I-shaped structure steel, angle steel, channel-section steel, T bar.
Further, the material of described frame beam is stainless steel or 9Ni steel or aluminum alloy.
Further, when the grid arrangement of described frame beam is many Pin framework around the form of center circle, longeron and the ring beam joint of described frame beam are respectively arranged with rigid joint, are linked together by gusset plate.
Further, described gusset plate with between ring beam, longeron by be welded to connect or bolt is connected or weld and be connected with the compound mode of bolt.
Further, the material of described corrugated sheet is stainless steel or 9Ni steel or aluminum alloy.
Further, the cross section of described suspension rod can be the form of round steel+be threaded, and also can be round steel, band steel, angle steel uniform section or its composite structure.
Ceiling structure of the present utility model uses thin-walled corrugated sheet furred ceiling to substitute traditional reinforcement flat sheet combination structure, significantly saves material, effectively reduces the load of dome steel structure, improve the Security of storage tank; Owing to adopting prefabrication+field-installed method of construction, lifting machining accuracy is high, and flatness is good, reduces welding job amount simultaneously, more saves the duration.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the furred ceiling overall structure schematic diagram of the liquefied natural gas (LNG) tank of the utility model embodiment;
Fig. 2 is the furred ceiling thin portion structural representation of Fig. 1 embodiment;
Fig. 3 is the ceiling structure of the utility model embodiment and the linkage structure schematic diagram with dome, frame beam thereof;
Fig. 4 is the corrugated sheet schematic cross-section of the utility model embodiment;
Fig. 5 is that the frame beam of the utility model embodiment arranges (single Pin) schematic diagram;
Fig. 6 is the frame beam connected node schematic diagram of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the furred ceiling overall structure schematic diagram of the liquefied natural gas (LNG) tank of the utility model embodiment, Fig. 2 is the furred ceiling thin portion structural representation of Fig. 1 embodiment, Fig. 3 is the ceiling structure of the utility model embodiment and the linkage structure schematic diagram with dome, frame beam thereof, this ceiling structure is applicable to double-walled low-temperature liquefaction rock gas vertical cylinder storage tank, in figure, 5 is interior tank skin, and 6 is outer tank skin, and this furred ceiling forms primarily of suspension rod 4, corrugated sheet 2 and frame beam 3 three part.
The grid arrangement of frame beam be many Pin framework around the form of center circle, quadrilateral, triangle, ring, gilled rings shape, fan-shaped in the form that combines of one or more forms, when the grid arrangement of frame beam is many Pin framework around the form of center circle, longeron and the ring beam joint of frame beam are respectively arranged with rigid joint, are linked together by gusset plate;
Suspension rod is one group of tensional element connecting dome steel structure 1 and frame beam (such as main material can be stainless steel or 9Ni steel or aluminum alloy), play and connect dome and framework beam action, every root suspension rod is connected between the dome of storage tank and frame beam, the upper end of every root suspension rod is suspended in dome steel structure, every root suspension rod lower end is articulated with on frame beam, the neutral position of every root suspension rod is provided with threaded bidirectional modulation head, in Fig. 3,9 is the bidirectional modulation screw thread of bidirectional modulation head, for adjusting the levelness of furred ceiling in installation process;
Corrugated sheet and frame beam pass through together with rivet interlacement, corrugated sheet upper surface lays cold insulation material, evenly being delivered on frame beam by corrugated sheet from heavy load of cold insulation material, frame beam is the main support structure of furred ceiling, being born by frame beam from heavy load of cold insulation material and furred ceiling, and be delivered in dome steel structure eventually through hanging rod structure.
Wherein, the cross section of suspension rod can be the form of round steel+be threaded, and also can be round steel, band steel, angle steel uniform section or its composite structure.
Fig. 4 is the corrugated sheet schematic cross-section of the utility model embodiment, and corrugated sheet is one group of die mould aluminium alloy plate supporting cold insulation material, is riveted together between two, is fixed on frame beam eventually through rivet after overlap joint.Corrugated sheet is a kind of orthotropic sheet material, and the rigidity of section of its strong edge direction is comparatively large, the deadweight uniform load of cold insulation material can be delivered on frame beam.Meanwhile, corrugated sheet can also bear the construction load produced in cold insulation material work progress.Compared with traditional panel suspended ceiling structure, because corrugated board structures takes full advantage of the module of anti-bending section of material, therefore greatly reduce the consumption of material, reduce furred ceiling deadweight, improve bearing capacity simultaneously.
Wherein, the corrugated sheet in above-described embodiment is also substitutable for the contour plate of other section forms.
Fig. 5 is that the frame beam of the utility model embodiment arranges (single Pin) schematic diagram, Fig. 6 is the frame beam connected node schematic diagram of the utility model embodiment, frame beam is one group of aluminum keel structure supporting corrugated sheet, connection suspension rod, is the main support structure of furred ceiling.The Cross section Design of beam is formed steel construction.Framework integral arrangement is the structure of many Pin framework around center circle, and each Pin framework size is all identical, can realize batch prefabricated, and be transported to Assembling, to improve machining accuracy and project progress in manufactory.Longeron 12 and ring beam 11 joint of frame beam are respectively arranged with rigid joint, are linked together by gusset plate; By being welded to connect between gusset plate and beam.In addition, for strengthening join strength, also bolt fastening structure can be set up.
Wherein, specific to the position relationship between the ring beam of frame beam and longeron, ring beam can be positioned at above or below longeron, also can align with the center line of longeron; The grid arrangement of frame beam (comprising Main subrack to set a roof beam in place) can be the form shown in Fig. 5, also can be quadrilateral, triangle, ring, gilled rings shape, other grid configurations such as fan-shaped, and the form that above various ways combines.
In the specific implementation, every root suspension rod upper and lower end also can arrange one group of suspension rod connecting plate 8 respectively, respectively by bolt be welded on the dome connecting plate 7 on dome and the frame attachment plate 10 on frame beam is fixed together.
Compared with prior art, improvement of the present utility model is:
Adopt frame structure to replace composite structure that is dull and stereotyped and stiffening ring, make full use of the resistance to flexure of beam, improve stock utilization, improve design safety factor simultaneously;
Adopt corrugated sheet to replace slab construction, take full advantage of the flexural rigidity of the strong edge direction of corrugated sheet, the bearing capacity of furred ceiling is improved greatly;
Adopt the hanging rod structure of adjustable length, ensure that in installation process, furred ceiling levelness can control;
The arrangement and method for construction of prefabrication+scene splicing can be adopted, decrease Site Welding workload, substantially reduce the site operation duration, improve working environment, improve manufacture and machining accuracy.
About detailed dimensions and the layout design of ceiling structure in the utility model, as the design of corrugated sheet bearing capacity, waveform size, the design of frame beam sectional dimension, carrying spacing, the design of suspension rod distribute spacing, and the design of connection rivet bearing capacity, can calculate according to design condition and determine, to meet the requirement of the various load working condition of storage tank.
To sum up, LNG storage tank ceiling structure of the present utility model, under the prerequisite realizing traditional furred ceiling all functions, significantly reduces the material consumption of furred ceiling, manufacturing cycle and expense, eliminate the problem that classic flat-plate furred ceiling easily occurs to bend, improve bearing capacity and the Safety performance of furred ceiling.Simultaneously because furred ceiling deadweight reduces, and then the material consumption of dome steel structure can be reduced further.The utility model can adopt the manufacture method of prefabrication+on-site consolidation, and significantly reduce Site Welding workload, accelerating construction progress, improves the working environment of workman.
In addition, model utility people compares the ceiling structure in above-described embodiment, for the furred ceiling of certain project intended diameter 83 meters, if the ceiling structure of traditionally flat board and stiffening ring combination, estimate to consume aluminum alloy material about 136 tons, stainless steel about 30 tons; And according to the technological scheme that the utility model provides, amount to and consume aluminum alloy material about 80 tons, stainless steel about 23 tons; Only material construction one can save about 1,700,000 yuan.Compared with traditional furred ceiling, the aluminium consumption in unit area reduces 41%, and stainless steel material consumption reduces 23%.Meanwhile, site operation duration about 30 Working days, minimizing weld lengths about 6000 meters can be reduced according to this programme, reduce the stressed 610KN of dome.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the utility model is necessary.
One of ordinary skill in the art will appreciate that: the module in the device in embodiment can describe according to embodiment and be distributed in the device of embodiment, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in previous embodiment, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technological scheme.
Claims (8)
1. a ceiling structure for liquefied natural gas (LNG) tank, is characterized in that, comprising: one group of suspension rod, corrugated sheet and frame beam, wherein:
The grid arrangement of described frame beam be many Pin framework around the form of center circle, quadrilateral, triangle, ring, gilled rings shape, fan-shaped in one;
Suspension rod described in every root is connected between the dome of storage tank and described frame beam, described in every root, the upper end of suspension rod is suspended in dome steel structure, suspension rod lower end described in every root is articulated with on described frame beam, the neutral position of suspension rod described in every root is provided with threaded bidirectional modulation head, for adjusting the levelness of furred ceiling in installation process;
Described corrugated sheet and described frame beam pass through together with rivet interlacement, and described corrugated sheet upper surface lays cold insulation material, being evenly delivered on frame beam by described corrugated sheet from heavy load of cold insulation material.
2. the ceiling structure of liquefied natural gas (LNG) tank according to claim 1, is characterized in that, the material of described suspension rod is stainless steel or 9Ni steel or aluminum alloy.
3. the ceiling structure of liquefied natural gas (LNG) tank according to claim 1, is characterized in that, described corrugated sheet is one group of die mould aluminium alloy plate supporting cold insulation material, is riveted together between two, and is fixed on described frame beam by rivet after overlap joint.
4. the ceiling structure of liquefied natural gas (LNG) tank according to claim 1, is characterized in that, described frame beam is any one in I-shaped structure steel, angle steel, channel-section steel, T bar.
5. the ceiling structure of liquefied natural gas (LNG) tank according to claim 1, is characterized in that, the material of described frame beam is stainless steel or 9Ni steel or aluminum alloy.
6. the ceiling structure of liquefied natural gas (LNG) tank according to claim 1, it is characterized in that, when the grid arrangement of described frame beam is many Pin framework around the form of center circle, longeron and the ring beam joint of described frame beam are respectively arranged with rigid joint, are linked together by gusset plate.
7. the ceiling structure of liquefied natural gas (LNG) tank according to claim 6, is characterized in that, described gusset plate with between ring beam, longeron by be welded to connect or bolt is connected or weld and be connected with the compound mode of bolt.
8. the ceiling structure of liquefied natural gas (LNG) tank according to claim 1, is characterized in that, the material of described corrugated sheet is stainless steel or 9Ni steel or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520285674.0U CN205026387U (en) | 2015-05-05 | 2015-05-05 | Furred ceiling structure of liquefied natural gas storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520285674.0U CN205026387U (en) | 2015-05-05 | 2015-05-05 | Furred ceiling structure of liquefied natural gas storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205026387U true CN205026387U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520285674.0U Ceased CN205026387U (en) | 2015-05-05 | 2015-05-05 | Furred ceiling structure of liquefied natural gas storage tank |
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| Country | Link |
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| CN (1) | CN205026387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832784A (en) * | 2015-05-05 | 2015-08-12 | 中国寰球工程公司 | Suspended ceiling structure of liquefied natural gas storage tank |
-
2015
- 2015-05-05 CN CN201520285674.0U patent/CN205026387U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832784A (en) * | 2015-05-05 | 2015-08-12 | 中国寰球工程公司 | Suspended ceiling structure of liquefied natural gas storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Two road 100012 Beijing city Chaoyang District high tech Industrial Park, No. 1. Patentee after: CHINA HUANQIU CONTRACTING & ENGINEERING Co.,Ltd. Patentee after: ZHEJIANG ZHENSHEN INSULATION TECHNOLOGY Corp.,Ltd. Address before: Two road 100012 Beijing city Chaoyang District high tech Industrial Park, No. 1. Patentee before: China Huanqiu Contracting & Engineering Corp. Patentee before: ZHEJIANG ZHENSHEN INSULATION TECHNOLOGY Corp.,Ltd. |
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| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20230725 Decision number of declaring invalidation: 563136 Granted publication date: 20160210 |