CN204627093U - A kind of LNG holds tank ceiling structure entirely - Google Patents
A kind of LNG holds tank ceiling structure entirely Download PDFInfo
- Publication number
- CN204627093U CN204627093U CN201520277879.4U CN201520277879U CN204627093U CN 204627093 U CN204627093 U CN 204627093U CN 201520277879 U CN201520277879 U CN 201520277879U CN 204627093 U CN204627093 U CN 204627093U
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- barricade
- perlite
- sealing plate
- furred ceiling
- ceiling
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Abstract
The utility model discloses a kind of LNG and entirely hold tank ceiling structure, comprise the furred ceiling sealing plate overlapped with outmost turns ceiling board, furred ceiling sealing plate is provided with perlite barricade fixed head, perlite barricade fixed head is fixed with perlite barricade by perlite barricade fastening devices, is provided with elasticity in the annulus formed between furred ceiling sealing plate and Inner tank shell and glues.The L-type outer ring sealing plate of the band circular arc chamfering that the utility model adopts, decreases welding job amount, improves integral rigidity; The oblique reinforcing rib of outer ring sealing plate increases the side bearing capacity of outer ring sealing plate, makes it deformation not occur when placing elasticity and gluing; The mode that existing conventional bolt connects is substituted by the mode that buckle compresses, improve the installation effectiveness of perlite barricade, avoid to the piecemeal that barricade carries out in prior art, fixed by the unidirectional of perlite barricade, improve the installation effectiveness of furred ceiling, reduce the labour intensity of operating personnel.
Description
Technical field
The utility model relates to a kind of LNG and entirely holds tank ceiling structure, for sealing and the carrying insulation layer of Large LNG storage tank Inner tank tank deck.
Background technology
To build and in running, because LNG temperature is extremely low, nominal situation is issued to-163.5 DEG C at Large LNG storage tank, just needs at the bottom of the tank skin, tank of Inner tank, tank deck does enough insulation layers, to ensure that LNG is in liquid condition, controls its evaporation capacity.Furred ceiling and the insulation layer weight carried thereof are delivered on tank deck by suspension rod, and reliable in order to ensure the Strength Safety of tank deck, the usual value of thickness of ceiling board is less; Meanwhile ceiling board edge also will bear the stress produced that expands with heat and contract with cold coming from initial screen resilience that elasticity glues and metal self, play an important role in LNG storage tank design so the structure of furred ceiling is good and bad, be also the important step ensureing LNG storage tank construction quality simultaneously.
Present stage, outer ring ceiling board 1 was connected by angle steel 2 with clamping plate 3 by LNG storage tank ceiling structure usually, elasticity is glued baffle plate 4 and is welded on the cover 3, elasticity is glued 5 and is placed on elasticity and glues in the annulus that baffle plate 4 and LNG storage tank Inner tank shell 6 formed, and has certain pre compressed magnitude to offset the effect of expanding with heat and contract with cold in later stage; Annulus is supported by gusset 7.Perlite and furred ceiling are isolated by perlite barricade 8 by the perlite that the later stage fills.The upper and lower side of perlite barricade is all fixed by bolt 9 and pressing plate 10, as shown in Figure 1.
In concrete implementation process, first will by the outmost turns ceiling board of furred ceiling and suspension rod according to drawing installation, again by miscellaneous part welding assembly in order, the upper end that elasticity glues baffle plate 4 is only fixed by fillet weld, lower end is unsettled, define cantilever beam structures, when filling elasticity and gluing 5, because elasticity sticky 5 exists pre compressed magnitude, screen resilience can be produced act on elasticity and glue on baffle plate 4, cause elasticity to glue baffle plate 4 to bend to the inside, as shown in accompanying drawing 1 dotted line, put into operation in process in the later stage, temperature can be down to-163.5 DEG C, furred ceiling self, Inner tank skin 6 all can have radial contraction, this contraction can aggravate elasticity and glue baffle plate 4 and be out of shape, make elasticity glue baffle plate 4 top canned paragraph and bear larger load.
In the installation to perlite barricade 8, due to the finite gap that the upper and lower side of perlite barricade 8 upper and lower side and furred ceiling is formed, need to drop into more manpower, perlite barricade 8 is fixed as securing member with the bolt 9 of routine, due to perlite barricade 8 for curtain cloth-like material is made, there is certain flexibility, the radial dimension at furred ceiling top is very large, be generally tens meters, constructor is difficult to a people and completes the fastening of bolt, in order to meet the requirement can constructed in both sides simultaneously, perlite barricade is tailored into the vertical bar block that several sizes are suitable, with glue, each vertical bar block is all sticky again after each vertical bar block fixes, owing to being splicing, so both add the workload of construction, when filling perlite, again reduce the total bearing capacity of barricade, after putting into operation, if there is the situation of low temperature in the ceiling void, the glue of bonding perlite barricade 8 there will be hardening phenomenon, cause bonding gap to occur crack thus cause perlite to pass perlite barricade 8 entering the ceiling void, affect the heat insulation effect of the tank deck part of LNG storage tank, cause the loss of larger LNG steam.
Utility model content
The utility model overcomes shortcoming of the prior art, provides a kind of LNG and entirely holds tank ceiling structure, elasticity can be avoided to glue the distortion of baffle plate, increase its supporting capacity, can improve again the installation effectiveness of perlite barricade; Simultaneously because perlite barricade adopts unidirectional fixed form, without the need to carrying out piecemeal to barricade again, improve the installation effectiveness of furred ceiling.
The technical solution of the utility model is: a kind of LNG holds tank ceiling structure entirely, comprise the furred ceiling sealing plate overlapped with outmost turns ceiling board, furred ceiling sealing plate is provided with perlite barricade fixed head, perlite barricade fixed head is fixed with perlite barricade by perlite barricade fastening devices, is provided with elasticity in the annulus formed between furred ceiling sealing plate and Inner tank shell and glues.
Further, described perlite barricade fastening devices comprises and is welded on buckle on perlite barricade fixed head and the pressing plate arranged on buckle, spring and sleeve.
Further, described furred ceiling sealing plate is the L-type outer ring sealing plate of band circular arc chamfering.
Further, in described furred ceiling sealing plate, oblique reinforcing rib is provided with.
Compared with prior art, the utility model has the advantages that: owing to gluing baffle plate 4(as shown in Figure 1 with the L-type outer ring sealing plate entirety replacement clamping plate 3 of the prior art and elasticity of being with circular arc chamfering), decrease welding job amount, improve overall rigidity; The oblique reinforcing rib added during prefabricated outer ring sealing plate increases the side bearing capacity of outer ring sealing plate, makes it deformation not occur when placing elasticity and gluing.The mode that existing conventional bolt connects is substituted by the mode that buckle compresses, improve the installation effectiveness of perlite barricade, avoid to the piecemeal that barricade carries out in prior art, fixed by the unidirectional of perlite barricade, improve the installation effectiveness of furred ceiling, reduce the labour intensity of operating personnel.
Accompanying drawing explanation
The utility model illustrates by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is ceiling structure schematic diagram of the prior art;
Fig. 2 is ceiling structure schematic diagram of the present utility model;
Fig. 3 is the structural representation of furred ceiling sealing plate;
Fig. 4 is the structural representation of perlite barricade fixed head;
Fig. 5 is the structural representation of perlite barricade fastening devices.
In figure: 1 outmost turns ceiling board, 2 angle steel, 3 clamping plate, 4 elasticity glue that baffle plate, 5 elasticity are sticky, 6 Inner tank shells, 7 gussets, 8 perlite barricades, 9 bolts, 10 pressing plates, 11 last lap suspension rods, 12 furred ceiling outer ring hermetically-sealed constructions, 13 perlite barricade fastening devicess, 14 furred ceiling sealing plates, 15 oblique reinforcing ribs, 16 perlite barricade fixed heads, 17 buckles, 18, sleeve, 19 springs, 20 pressing plates.
Detailed description of the invention
A kind of LNG holds tank ceiling structure entirely, as shown in Figures 2 to 5, comprises furred ceiling outer ring hermetically-sealed construction 12 and perlite barricade fastening devices 13;
Described furred ceiling outer ring hermetically-sealed construction 12 comprises furred ceiling sealing plate 14 and the oblique reinforcing rib 15 of sealing plate, described furred ceiling sealing plate 14 is the L-type outer ring sealing plate of band circular arc chamfering, be overlapped on the outmost turns ceiling board 1 of furred ceiling, in furred ceiling sealing plate 14, have oblique reinforcing rib 15;
Described perlite barricade fastening devices 13 comprises perlite barricade fixed head 16, buckle 17, fixed muffle 18, spring 19, pressing plate 20 etc., wherein: buckle 17 is welded on perlite barricade fixed head 16, perlite barricade 8 is installed pressing plate 20, spring 19 and sleeve 18 successively through after buckle 17.
Claims (4)
1. a LNG holds tank ceiling structure entirely, it is characterized in that: comprise the furred ceiling sealing plate overlapped with outmost turns ceiling board, furred ceiling sealing plate is provided with perlite barricade fixed head, perlite barricade fixed head is fixed with perlite barricade by perlite barricade fastening devices, is provided with elasticity in the annulus formed between furred ceiling sealing plate and Inner tank shell and glues.
2. LNG according to claim 1 holds tank ceiling structure entirely, it is characterized in that: described perlite barricade fastening devices comprises and is welded on buckle on perlite barricade fixed head and the pressing plate arranged on buckle, spring and sleeve.
3. LNG according to claim 1 holds tank ceiling structure entirely, it is characterized in that: described furred ceiling sealing plate is the L-type outer ring sealing plate of band circular arc chamfering.
4. LNG according to claim 1 holds tank ceiling structure entirely, it is characterized in that: in described furred ceiling sealing plate, be provided with oblique reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277879.4U CN204627093U (en) | 2015-04-30 | 2015-04-30 | A kind of LNG holds tank ceiling structure entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277879.4U CN204627093U (en) | 2015-04-30 | 2015-04-30 | A kind of LNG holds tank ceiling structure entirely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627093U true CN204627093U (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520277879.4U Active CN204627093U (en) | 2015-04-30 | 2015-04-30 | A kind of LNG holds tank ceiling structure entirely |
Country Status (1)
| Country | Link |
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| CN (1) | CN204627093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790708A (en) * | 2015-04-30 | 2015-07-22 | 中国石油集团工程设计有限责任公司 | LNG full-capacity tank suspended ceiling structure and construction method thereof |
-
2015
- 2015-04-30 CN CN201520277879.4U patent/CN204627093U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790708A (en) * | 2015-04-30 | 2015-07-22 | 中国石油集团工程设计有限责任公司 | LNG full-capacity tank suspended ceiling structure and construction method thereof |
| CN104790708B (en) * | 2015-04-30 | 2017-05-31 | 中国石油集团工程设计有限责任公司 | A kind of LNG full appearance tanks ceiling structure and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180112 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 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210226 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. |
|
| TR01 | Transfer of patent right |