CN104790708B - A kind of LNG full appearance tanks ceiling structure and its construction method - Google Patents
A kind of LNG full appearance tanks ceiling structure and its construction method Download PDFInfo
- Publication number
- CN104790708B CN104790708B CN201510219090.8A CN201510219090A CN104790708B CN 104790708 B CN104790708 B CN 104790708B CN 201510219090 A CN201510219090 A CN 201510219090A CN 104790708 B CN104790708 B CN 104790708B
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- China
- Prior art keywords
- perlite
- barricade
- sealing plate
- furred ceiling
- ceiling
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/02—Containers for fluids or gases; Supports therefor
- E04H7/04—Containers for fluids or gases; Supports therefor mainly of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/30—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of LNG full appearance tanks ceiling structure and its construction method, ceiling structure includes the furred ceiling sealing plate overlapped with outmost turns ceiling board, perlite barricade fixed plate is provided with furred ceiling sealing plate, perlite barricade is fixed with by perlite barricade fixing device in perlite barricade fixed plate, sets flexible viscous in the annulus formed between furred ceiling sealing plate and Inner tank shells.The L-type outer ring sealing plate with circular arc chamfering that the present invention is used, reduces welding job amount, improves integral rigidity；The oblique reinforcement of outer ring sealing plate increases the side bearing capacity of outer ring sealing plate, it is not deformed upon when placing elastic viscous；The mode compressed with buckle substitutes the mode that existing conventional bolt is connected, the installation effectiveness of perlite barricade is improve, it is to avoid the piecemeal for being carried out to barricade in the prior art, by the unidirectional fixation of perlite barricade, the installation effectiveness of furred ceiling is improve, the labour intensity of operating personnel is reduced.
Description
Technical field
The present invention relates to a kind of LNG full appearance tanks ceiling structure and its construction method, for Large LNG storage tank Inner tank tank decks
Sealing and carrying heat-insulation layer.
Background technology
Built with running in Large LNG storage tank, because LNG temperature is extremely low, nominal situation is issued to -163.5 DEG C,
It is accomplished by doing enough heat-insulation layers in the tank skin of Inner tanks, tank bottom, tank deck, to ensure that LNG is in liquid condition, controls it to evaporate
Amount.Furred ceiling and its insulation layer weight for being carried are delivered on tank deck by suspension rod, in order to ensure the Strength Safety reliability of tank deck,
The usual value of thickness of ceiling board is smaller；At the same time ceiling board edge still suffer from coming from the viscous initial screen resilience of elasticity and
The stress of the generation of expanding with heat and contract with cold of metal itself, so the structure of furred ceiling is good and bad played an important role in LNG storage tank design,
It is also simultaneously the important step for ensureing LNG storage tank construction quality.
LNG storage tank ceiling structure is generally connected outmost turns ceiling board 1 and clamping plate 3 by angle steel 2 at this stage, the viscous gear of elasticity
Plate 4 is welded on the cover 3, and elasticity viscous 5 is placed in the annulus that the viscous baffle plate 4 of elasticity and LNG storage tank Inner tank shells 6 are formed,
With certain pre compressed magnitude offsetting the effect of expanding with heat and contract with cold in later stage；Annulus is supported by gusset 7.The pearl of later stage filling
Rock is isolated perlite and furred ceiling by perlite barricade 8.The upper and lower side of perlite barricade is solid by bolt 9 and pressing plate 10
It is fixed, as shown in Figure 1.
In specific implementation process, outmost turns ceiling board and suspension rod by furred ceiling are first had to according to drawing installation,
Again by miscellaneous part welding assembly in order, the upper end of the viscous baffle plate 4 of elasticity is only fixed by angle welding, and lower end is hanging, forms outstanding
Arm girder construction, when filling elasticity glues 5, because elasticity viscous 5 has pre compressed magnitude, can produce screen resilience to act on the viscous baffle plate of elasticity
On 4, the viscous inside lateral bend of baffle plate 4 of elasticity is caused, as shown in the dotted line of accompanying drawing 1, during the later stage puts into operation, temperature can be down to-
163.5 DEG C, furred ceiling itself, Inner tank skins 6 can all have radial contraction, and this contraction can aggravate the viscous baffle plate 4 of elasticity and deform so that elasticity
The viscous top canned paragraph of baffle plate 4 bears larger load.
In to the installation of perlite barricade 8, due to the gap that the upper and lower side of the upper and lower side of perlite barricade 8 and furred ceiling is formed
It is limited, it is necessary to put into more manpower, fixed perlite barricade 8 as fastener with conventional bolt 9, due to perlite gear
Wall 8 is made up of curtain cloth-like material, and with certain flexibility, the radial dimension at the top of furred ceiling is very big, usually tens meters, constructor
Member is difficult the fastening that a people completes bolt, can be while the requirement constructed, perlite barricade is tailored into order to meet both sides
The suitable vertical bar block of several sizes, is again played the whole adhesion of each vertical bar block with glue after each vertical bar block is fixed
Come, due to being splicing, so both increased the workload of construction, when perlite is filled, the integrated carrying of barricade is reduced again
Power；After putting into operation, if the situation of low temperature occurs in the ceiling void, the glue of bonding perlite barricade 8 occurs hardening phenomenon,
Cause bonding gap crack occur so as to cause perlite to enter the ceiling void through perlite barricade 8, influence the tank of LNG storage tank
The heat insulation effect at top point, causes the loss of bigger LNG steam.
The content of the invention
In order to overcome the shortcoming of prior art, the invention provides a kind of LNG full appearance tanks ceiling structure and its construction method,
Both the deformation of the viscous baffle plate of elasticity had been avoided that, had increased its bearing capacity, the installation effectiveness of perlite barricade can have been improved again；Simultaneously because
Perlite barricade uses unidirectional fixed form, without carrying out piecemeal to barricade again, improves the installation effectiveness of furred ceiling.
The technical solution adopted in the present invention is：A kind of LNG full appearance tanks ceiling structure, including overlapped with outmost turns ceiling board
Furred ceiling sealing plate, perlite barricade fixed plate is provided with furred ceiling sealing plate, in perlite barricade fixed plate by treasure
Pearl rock barricade fixing device is fixed with perlite barricade, is set in the annulus formed between furred ceiling sealing plate and Inner tank shells
It is equipped with elasticity viscous.
Further, the perlite barricade fixing device include being welded on buckle in perlite barricade fixed plate and
Pressing plate, spring and the sleeve set on buckle.
Further, the furred ceiling sealing plate is the L-type outer ring sealing plate with circular arc chamfering.
Further, it is provided with oblique reinforcement in the furred ceiling sealing plate.
Present invention also offers a kind of construction method of LNG full appearance tanks ceiling structure, comprise the following steps：
Step one, furred ceiling sealing plate is prefabricated into the L-type outer ring sealing plate with circular arc chamfering, while by the weldering of oblique reinforcement
It is connected in the sealing plate of L-type outer ring；
Step 2, by furred ceiling sealing plate by welded lap on the outmost turns ceiling board of furred ceiling, be positioned over elasticity is viscous
In the annulus that furred ceiling sealing plate is formed with Inner tank shells, compression is tamped；
Step 3, be welded buckle in perlite barricade fixed plate after, perlite barricade fixed plate is welded on furred ceiling
On sealing plate；
Step 4, by perlite barricade pass through buckle, pressing plate, spring and sleeve are then sequentially passed through into buckle, by pearl
Rock barricade is pressed in perlite barricade fixed plate.
Compared with prior art, the positive effect of the present invention is：Due to the L-type outer ring sealing plate entirety with circular arc chamfering
Replace clamping plate of the prior art 3 and the viscous baffle plate 4 of elasticity（As shown in Figure 1）, welding job amount is reduced, improve overall firm
Degree；The oblique reinforcement added during prefabricated outer ring sealing plate increases the side bearing capacity of outer ring sealing plate, it is being placed bullet
Property it is viscous when do not deform upon.The mode compressed with buckle substitutes the mode that existing conventional bolt is connected, and improves perlite gear
The installation effectiveness of wall, it is to avoid the piecemeal for being carried out to barricade in the prior art, by the unidirectional fixation of perlite barricade, improves
The installation effectiveness of furred ceiling, reduces the labour intensity of operating personnel.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is ceiling structure schematic diagram of the prior art；
Fig. 2 is ceiling structure schematic diagram of the invention；
Fig. 3 is the structural representation of furred ceiling sealing plate；
Fig. 4 is the structural representation of perlite barricade fixed plate；
Fig. 5 is the structural representation of perlite barricade fixing device.
In figure：1 outmost turns ceiling board, 2 angle steel, 3 clamping plates, the viscous baffle plate of 4 elasticity, viscous 5 elasticity, 6 Inner tank shells, 7 gussets, 8
Perlite barricade, 9 bolts, 10 pressing plates, 11 last lap suspension rods, 12 furred ceiling outer ring sealing structures, 13 perlite barricades fix dress
Put, 14 furred ceiling sealing plates, 15 oblique reinforcements, 16 perlite barricade fixed plates, 17 buckles, 18 sleeves, 19 springs, 20 pressing plates.
Specific embodiment
A kind of LNG full appearance tanks ceiling structure, as shown in Figures 2 to 5, including furred ceiling outer ring sealing structure 12 and perlite gear
Wall fixing device 13；
Furred ceiling outer ring sealing structure 12 includes furred ceiling sealing plate 14 and the oblique reinforcement 15 of sealing plate, and the furred ceiling is close
Shrouding 14 is the L-type outer ring sealing plate with circular arc chamfering, is overlapped on the outmost turns ceiling board 1 of furred ceiling, in furred ceiling sealing plate 14
There is oblique reinforcement 15；
The perlite barricade fixing device 13 include perlite barricade fixed plate 16, buckle 17, sleeve 18, spring 19,
Pressing plate 20 etc., wherein：Buckle 17 is welded in perlite barricade fixed plate 16, by perlite barricade 8 through after buckle 17 successively
Pressing plate 20, spring 19 and sleeve 18 are installed.
Present invention also offers a kind of construction method of LNG full appearance tanks ceiling structure, comprise the following steps：
Step one, sealing plate oblique reinforcement 15 in outer ring is welded on furred ceiling sealing plate 14 in prefabricated outer ring sealing plate
On；
Step 2, the L-type outer ring sealing plate with circular arc chamfering is overlapped on the outmost turns ceiling board 1 of furred ceiling, it is ensured that weldering
Reliability is connect, ready elasticity viscous 5 is positioned in the annulus that furred ceiling sealing plate 14 is formed with Inner tank shells 6, tamp pressure
Tightly；
Step 3, in prefabricated perlite barricade fixed plate 16 buckle 17 is welded in perlite barricade fixed plate 16,
Buckle 17 is uniformly distributed along fixed plate ring, and perlite barricade fixed plate 16 is welded on furred ceiling sealing plate 14；
Step 4, by perlite barricade 8 pass through buckle 17, successively install pressing plate 20, spring 19, finally sleeve 18 is passed through
Buckle 17, perlite barricade 8 is pressed in perlite barricade fixed plate 16.
Claims (4)
1. a kind of LNG full appearance tanks ceiling structure, it is characterised in that：Including the furred ceiling sealing plate overlapped with outmost turns ceiling board,
Perlite barricade fixed plate is provided with furred ceiling sealing plate, perlite barricade fixing device is passed through in perlite barricade fixed plate
Perlite barricade is fixed with, sets flexible viscous in the annulus formed between furred ceiling sealing plate and Inner tank shells；It is described
Perlite barricade fixing device includes the buckle being welded in perlite barricade fixed plate and the pressing plate, the spring that are set on buckle
And sleeve；The furred ceiling sealing plate is the L-type outer ring sealing plate with circular arc chamfering.
2. LNG full appearance tanks ceiling structure according to claim 1, it is characterised in that：Set in the furred ceiling sealing plate
There is oblique reinforcement.
3. a kind of construction method of LNG full appearance tanks ceiling structure, it is characterised in that：Comprise the following steps：
Step one, furred ceiling sealing plate is prefabricated into the L-type outer ring sealing plate with circular arc chamfering, while oblique reinforcement is welded on
In the sealing plate of L-type outer ring；
Step 2, by furred ceiling sealing plate by welded lap on the outmost turns ceiling board of furred ceiling, be positioned over furred ceiling by elasticity is viscous
In the annulus that sealing plate is formed with Inner tank shells, compression is tamped；
Step 3, be welded buckle in perlite barricade fixed plate after, by perlite barricade fixed plate be welded on furred ceiling sealing
On plate；
Step 4, by perlite barricade pass through buckle, pressing plate, spring and sleeve are then sequentially passed through into buckle, perlite is kept off
Wall is pressed in perlite barricade fixed plate.
4. the construction method of LNG full appearance tanks ceiling structure according to claim 3, it is characterised in that：The buckle is along precious
Pearl rock barricade fixed plate ring is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510219090.8A CN104790708B (en) | 2015-04-30 | 2015-04-30 | A kind of LNG full appearance tanks ceiling structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510219090.8A CN104790708B (en) | 2015-04-30 | 2015-04-30 | A kind of LNG full appearance tanks ceiling structure and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104790708A CN104790708A (en) | 2015-07-22 |
| CN104790708B true CN104790708B (en) | 2017-05-31 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006046872A1 (en) * | 2004-10-25 | 2006-05-04 | Concryo As | Tank for storage of lng or other cryogenic fluids |
| CN201891218U (en) * | 2010-12-03 | 2011-07-06 | 中冶东方工程技术有限公司上海分公司 | Connecting structure of profiled steel sheet for steel-structured factory building |
| CN202731121U (en) * | 2012-08-15 | 2013-02-13 | 苏州市建筑科学研究院有限公司 | Waterproof node of deformation joint between high span and low span of roof |
| CN103088952A (en) * | 2013-01-24 | 2013-05-08 | 中色科技股份有限公司 | Method and panel point structure preventing high-cross falling objects from damaging low-cross steel roof |
| CN202946922U (en) * | 2012-11-27 | 2013-05-22 | 甘肃蓝科石化高新装备股份有限公司 | Elastic sealing structure for inner tank top of dual-shell low-temperature storage tank |
| CN103862404A (en) * | 2014-03-11 | 2014-06-18 | 昆山若宇检具工业有限公司 | Fastener pressing mechanism |
| CN103899756A (en) * | 2014-04-25 | 2014-07-02 | 中石化第十建设有限公司 | Sealing equipment and construction technology in LNG full containment tank vault air-blowing jacking process |
| CN204627093U (en) * | 2015-04-30 | 2015-09-09 | 中国石油集团工程设计有限责任公司 | A kind of LNG holds tank ceiling structure entirely |
-
2015
- 2015-04-30 CN CN201510219090.8A patent/CN104790708B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006046872A1 (en) * | 2004-10-25 | 2006-05-04 | Concryo As | Tank for storage of lng or other cryogenic fluids |
| CN201891218U (en) * | 2010-12-03 | 2011-07-06 | 中冶东方工程技术有限公司上海分公司 | Connecting structure of profiled steel sheet for steel-structured factory building |
| CN202731121U (en) * | 2012-08-15 | 2013-02-13 | 苏州市建筑科学研究院有限公司 | Waterproof node of deformation joint between high span and low span of roof |
| CN202946922U (en) * | 2012-11-27 | 2013-05-22 | 甘肃蓝科石化高新装备股份有限公司 | Elastic sealing structure for inner tank top of dual-shell low-temperature storage tank |
| CN103088952A (en) * | 2013-01-24 | 2013-05-08 | 中色科技股份有限公司 | Method and panel point structure preventing high-cross falling objects from damaging low-cross steel roof |
| CN103862404A (en) * | 2014-03-11 | 2014-06-18 | 昆山若宇检具工业有限公司 | Fastener pressing mechanism |
| CN103899756A (en) * | 2014-04-25 | 2014-07-02 | 中石化第十建设有限公司 | Sealing equipment and construction technology in LNG full containment tank vault air-blowing jacking process |
| CN204627093U (en) * | 2015-04-30 | 2015-09-09 | 中国石油集团工程设计有限责任公司 | A kind of LNG holds tank ceiling structure entirely |
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| Publication number | Publication date |
|---|---|
| CN104790708A (en) | 2015-07-22 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180115 Address after: 610041 Chengdu high tech Zone, Sichuan province sublimation Road No. 6 Patentee after: China Petroleum Engineering Construction Co Ltd Address before: 610041 Chengdu high tech Zone, Sichuan province sublimation Road No. 6 Patentee before: Engineering Design Co., Ltd., China Petroleum Group |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210222 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Address before: No. 6, Sichuan hi tech Zone, sublime Road, Chengdu, Sichuan Patentee before: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. |