CN205048149U - Integrated furred ceiling structure of low temperature storage tank - Google Patents
Integrated furred ceiling structure of low temperature storage tank Download PDFInfo
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- CN205048149U CN205048149U CN201520697127.3U CN201520697127U CN205048149U CN 205048149 U CN205048149 U CN 205048149U CN 201520697127 U CN201520697127 U CN 201520697127U CN 205048149 U CN205048149 U CN 205048149U
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- furred ceiling
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Abstract
The utility model provides an integrated furred ceiling structure of low temperature storage tank, the furred ceiling is installed on the inner tank of storage tank, the furred ceiling structure is including hanging top frame and furred ceiling panel, the tiling of furred ceiling panel is fixed hang the top frame surface, it constitutes by central frame with from the ring frame of central frame outdiffusion frame to hang top frame, the center frame is the regular polygon structure, the circumscribed circle diameter of central frame be whole storage tank diameter 1/10th to the eighth, the center frame comprises around lapped ring beam centre straight beam and all ring edge crisscross perpendicularly. The utility model discloses the panel adopts the low temperature resistant light sheet metal of 0.5 -2 millimeter, is processed into the buckled plate, and the furred ceiling dead weight alleviates greatly, and used roof beam is also less lighter, reduction that the quantity of jib just also can be corresponding, and by the stress that the difference in temperature produced, the buckled plate can be eliminated effectively, and the stress of between furred ceiling and jib is also less, and the deformation of furred ceiling is very little, and is fine with the leakproofness of barrel.
Description
(1) technical field
The utility model relates to a kind of assembled ceiling structure of low-temperature storage tank.
(2) background technique
Present cryogenic engineering technical field, cryogenic liquid storage tank for storing liquefied gas at low temp, as LNG, LPG, liquid nitrogen, liquid oxygen, ethene, propylene, liquefied ammonia etc.The double layer construction that cryogenic liquid storage tank is made up of inner and outer tank, inner canister is used for storing cryogenic fluids, and the gas of outer tank splendid attire cold insulation material and evaporation, interior tank deck is suspended on the vault of outer tank by suspension rod.Interior filling furred ceiling plays sealing and two effects of carrying top thermal insulating material, if seal bad, outer tank thermal insulating material can be caused to enter inner canister or equipment, polluted product, or affect the normal operation of equipment; Affect storage tank cold insulation effect, cause cryogenic liquide to gasify, the performance safety for storage tank produces significant impact.If furred ceiling is too thick and heavy, fabrication and installation are numerous and diverse, outer vault load weight, and the fabrication and installation cycle is long, and cost is high, are difficult to sealing.Along with the increase of tank capacity, inner canister furred ceiling plays a part very important for the safety of storage tank, performance and Economy.
Traditional storage tank furred ceiling is the corrosion resistant plate or the aluminium alloy plate that adopt 6-8 millimeters thick, utilizes suspension rod to hang on vault, because ceiling board deadweight is heavier, beam used is also more thick and heavy, and suspension rod usage quantity is numerous, and the requirement for bearing capacity for outer tank deck is very high, make, install complexity, cost is very high; Between the suspension rod that the temperature difference causes and boatswain chair, stress is comparatively large, and the sealing of furred ceiling reduces, and the heat insulating ability of storage tank, Security, Economy will decline.
(3) model utility content
The technical problems to be solved in the utility model is to provide a kind of assembled ceiling structure of low-temperature storage tank, and make, install simply, cost is low; The deformation of furred ceiling is very little, good airproof performance.
For this reason, the utility model takes following technological scheme:
An assembled ceiling structure for low-temperature storage tank, described installation of ceiling is in the inner canister of storage tank, and described ceiling structure includes ceiling framework and hang ceiling panel, and described hang ceiling panel tiling is fixed on described ceiling framework surface;
Described ceiling framework forms by central frame with from central frame to the annular frame of external diffusion, described central frame is regular polygon structure, the circumscribed circle diameter of central frame is 1/1 to eight/10th of whole tank diameter, and the straight beam that described central frame is interlocked by intermediate vertical and periphery form around the ring beam overlapped; Described central frame is n-shaped, described annular frame is spliced by N number of sector element of correspondence and forms, described sector element includes some girders, secondary beam and inner loop beam, girder overlaps mutually with the ring beam of central frame, centrally framework is that dispersion shape is evenly arranged to surrounding, has inner loop beam to be connected between adjacent girder;
When adjacent main case bay is greater than 1.5 times of central frame ring beam length, described secondary beam is equipped with between girder, described secondary beam is that dispersion shape is evenly arranged to surrounding, inner terminal and the centre of secondary beam connect by with described inner loop beam, the outermost end of girder and secondary beam is fixed with the outstanding low temperature resistant sheet metal rib of a circle, for fixed seal ring;
Described central frame, girder, secondary beam and inner loop beam mutually overlap and are fixed on same horizontal plane, described hang ceiling panel includes corrugated sheet and flat board, corrugated sheet sealing is laid in described ceiling framework surface, and the corrugated sheet that centrally the same angle in form diameter direction is arranged passes through end nested encryptions mutually; The corrugated sheet that centrally framework circumferential direction adjacent angular is arranged passes through side anchoring or solder design; Dull and stereotyped at outer ring flange irregular portion bit tilling;
Prefabricatedly on the central frame ring beam of described ceiling framework, girder and secondary beam be welded with suspension rod lug, also correspondingly on the vault of described storage tank be prefabricatedly welded with lug, be connected by suspension rod between respective ledge, the end of suspension rod is provided with connecting plate, and lug and connecting plate are bolted; Suspension rod is consistent with the angle that frame plane is formed, and is acute angle degree to central direction; The secondary beam of outmost turns is also connected with two suspension rods, they are connected with the vault tie point oblique pull of adjacent girder suspension rod.
The centre of described suspension rod is connected with length adjustment device, after installation of ceiling completes, by controlling device, ceiling plane is adjusted level, and the rate of tension of all suspension rods regulates unanimously, and controlling device is fastening locked.
Described central frame is positive 18 distortion or positive 36 distortion, and described annular frame is made up of 18 sector elements of correspondence or 36 sector elements.
The utility model has the advantages that: 1, panel adopts the low temperature resistant light-weight metal sheet material of 0.5-2 millimeter, be processed into corrugated sheet, furred ceiling deadweight alleviates greatly, beam used is also less comparatively light, and the quantity of suspension rod also just can reduce accordingly, the stress produced by the temperature difference, corrugated sheet can be eliminated effectively, stress between furred ceiling and suspension rod is also less, and the deformation of furred ceiling is very little, fine with the sealing of cylindrical shell; 2, due to ceiling board weight reduction, girder used, ring beam, secondary beam etc. are also less comparatively light, and suspension rod usage quantity reduces, and make, install simply, cost is low.
(4) accompanying drawing explanation
Fig. 1 is the utility model ceiling framework partial structurtes schematic diagram;
Fig. 2 is the utility model partial sectional view;
Fig. 3 is the utility model corrugated board structures schematic diagram.
(5) specific embodiment
With reference to accompanying drawing 1-3, a kind of assembled ceiling structure of low-temperature storage tank, described installation of ceiling is in the inner canister of storage tank, and described ceiling structure includes ceiling framework and hang ceiling panel, and described hang ceiling panel tiling is fixed on described ceiling framework surface; Described ceiling framework forms by central frame 1 with from central frame to the annular frame 2 of external diffusion, described central frame is regular polygon structure, the circumscribed circle diameter of central frame is 1/1 to eight/10th of whole tank diameter, and the straight beam 11 that described central frame is interlocked by intermediate vertical and periphery form around the ring beam 12 overlapped; Described central frame is n-shaped, described annular frame is spliced by N number of sector element of correspondence and forms, described sector element includes some girders 21, secondary beam 22 and inner loop beam 23, girder overlaps mutually with the ring beam of central frame, centrally framework is that dispersion shape is evenly arranged to surrounding, has inner loop beam to be connected between adjacent girder;
When adjacent main case bay is greater than 1.5 times of central frame ring beam length, described secondary beam is equipped with between girder, described secondary beam is that dispersion shape is evenly arranged to surrounding, inner terminal and the centre of secondary beam connect by with described inner loop beam, the outermost end of girder and secondary beam is fixed with the outstanding low temperature resistant sheet metal rib 24 of a circle, for fixed seal ring;
Described central frame, girder, secondary beam and inner loop beam mutually overlap and are fixed on same horizontal plane, and described hang ceiling panel includes corrugated sheet 31 and dull and stereotyped 32, and corrugated sheet sealing is laid in described ceiling framework surface.In central frame position, corrugated sheet is paved with whole region in the same direction.In each sector region, corrugated sheet is along being parallel to the tiling of central frame ring beam direction, and for the region that width is larger, corrugated sheet passes through end nested encryptions in girder position, and is fixed on girder; Corrugated sheet peak valley on girder of adjacent sector region is corresponding, seamless spliced, and is fixed on girder; Around outer ring flange, the tiling of irregular position is dull and stereotyped; At the intersection in each fan section and central frame district, seal bad, the corrugated sheet in this region re-lays the flat board of a circle between corrugated sheet inside and outside, flanging sealing is fixing.Be connected by suspension rod 41 between described ceiling framework and vault.
Prefabricatedly on the central frame ring beam of described ceiling framework, girder and secondary beam be welded with lug, also correspondingly on the vault of described storage tank outer tank be prefabricatedly welded with lug, be connected by suspension rod between respective ledge, the end of suspension rod is provided with connecting plate, and lug and connecting plate are bolted; Suspension rod is consistent with the angle that frame plane is formed, in acute angle degree; The secondary beam of outmost turns is also connected with two suspension rods, they are connected with the vault tie point oblique pull of adjacent girder suspension rod.The centre of described suspension rod is provided with length adjustment device 51, after installation of ceiling completes, by controlling device, ceiling plane is adjusted level, and the rate of tension of all suspension rods regulates unanimously, and controlling device is fastening locked.
Now for the LNG storage tank of a diameter 85 meters: the low-temperature storage tank of diameter 85 meters, central frame is overlapped mutually by eight straight beams 2 of vertical interlaced, periphery is overlapped to form positive 18 limit shapes by the ring beam 3 of 18 1.468 meters, its circumscribed circle diameter is 8.4 meters, staggered straight beam 2 and evenly overlapping with 18 limit shape ring beams 3, on the ring beam 3 of central frame 1, outside homogenous diffusion shape is arranged 54 girders 4, at distance 10 meters, center, 15 meters, the position annular arrangement of 19.3 meters 54 inner loop beams 5, the two ends of every root inner loop beam 5 overlap mutually with adjacent girder 4, in the central position of each inner loop beam apart from 19.3 meters, center, outwards dispersion shape is arranged 54 secondary beams 6 again.Apart from 23.5 meters, center, the position annular arrangement of 27.6 meters, 31.6 meters, 35.6 meters, 40 meters 108 inner loop beams 5, every root inner loop beam 5 connects into an entirety with adjacent girder 4 and secondary beam 6.Ring beam 3, girder 4, inner loop beam 5, secondary beam 6, central frame 1 and straight beam 2 mutually overlap joint are fastened on a formation overall skeleton on same horizontal plane.
On the ring beam 2 of the central frame apart from 4.2 meters, center and on the girder 4 of 7.7 meters, annular is arrangement 27 suspension rods 7 evenly, at distance 11.6 meters, center, 14.9 meters, on the girder 4 of 17.9 meters, annular is arrangement 54 suspension rods 7 evenly, at distance 21.7 meters, center, 25.2 meters, 28.5 meters, 31.6 meters, 34.6 meters, 37.5 meters, 40.6 meters, on the girder of 41.6 meters and secondary beam, annular is arrangement 108 suspension rods evenly, vault 10 corresponding with it also there is corresponding suspension rod tie point, there is length adjustment device 8 centre of suspension rod, for regulating the length of suspension rod, thus reach each suspension rod uniform stressed, furred ceiling face level.In 82 degree of angles between furred ceiling bar 7 and girder 4, secondary beam 6.Suspension rod 7 tie point of outmost turns secondary beam 6 also have two suspension rods 7 be connected with adjacent girder suspension rod vault tie point.The outer end of girder 4 and secondary beam 6 is fixed with a circle thickness 10 millimeters, the rib 12 of height 120 millimeters, on central frame 1, girder 4, inner loop beam 3, tiling has 1.2 millimeters thick corrugated sheets 9, in outer ring flange 12 and the flat board 11 that between corrugated sheet 9, irregular portion divides joint close to tile thickness 5 millimeters, the material of plate body is low temperature resistant aluminum alloy, the height of corrugated sheet 9 is 75 millimeters, and width is 50 millimeters, and knuckle is 102 degree.
Claims (3)
1. an assembled ceiling structure for low-temperature storage tank, described installation of ceiling, in the inner canister of storage tank, is characterized in that: described ceiling structure includes ceiling framework and hang ceiling panel, and described hang ceiling panel tiling is fixed on described ceiling framework surface;
Described ceiling framework forms by central frame with from central frame to the annular frame of external diffusion, described central frame is regular polygon structure, the circumscribed circle diameter of central frame is 1/1 to eight/10th of whole tank diameter, and the straight beam that described central frame is interlocked by intermediate vertical and periphery form around the ring beam overlapped; Described central frame is n-shaped, described annular frame is spliced by N number of sector element of correspondence and forms, described sector element includes some girders, secondary beam and inner loop beam, girder overlaps mutually with the ring beam of central frame, centrally framework is that dispersion shape is evenly arranged to surrounding, has inner loop beam to be connected between adjacent girder;
When adjacent main case bay is greater than 1.5 times of central frame ring beam length, described secondary beam is equipped with between girder, described secondary beam is that dispersion shape is evenly arranged to surrounding, inner terminal and the centre of secondary beam connect by with described inner loop beam, the outermost end of girder and secondary beam is fixed with the outstanding low temperature resistant sheet metal rib of a circle, for fixed seal ring;
Described central frame, girder, secondary beam and inner loop beam mutually overlap and are fixed on same horizontal plane, described hang ceiling panel includes corrugated sheet and flat board, corrugated sheet sealing is laid in described ceiling framework surface, and the corrugated sheet that centrally the same angle in form diameter direction is arranged passes through end nested encryptions mutually; The corrugated sheet that centrally framework circumferential direction adjacent angular is arranged passes through side anchoring or solder design; Dull and stereotyped at outer ring flange irregular portion bit tilling;
Prefabricatedly on the central frame ring beam of described ceiling framework, girder and secondary beam be welded with suspension rod lug, also correspondingly on the vault of described storage tank be prefabricatedly welded with lug, be connected by suspension rod between respective ledge, the end of suspension rod is provided with connecting plate, and lug and connecting plate are bolted; Suspension rod is consistent with the angle that frame plane is formed, and is acute angle degree to central direction; The secondary beam of outmost turns is also connected with two suspension rods, they are connected with the vault tie point oblique pull of adjacent girder suspension rod.
2. the assembled ceiling structure of low-temperature storage tank as claimed in claim 1, it is characterized in that: the centre of described suspension rod is connected with length adjustment device, after installation of ceiling completes, pass through controlling device, ceiling plane is adjusted level, the rate of tension of all suspension rods regulates unanimously, and controlling device is fastening locked.
3. the assembled ceiling structure of low-temperature storage tank as claimed in claim 1, is characterized in that: described central frame is positive 18 distortion or positive 36 distortion, and described annular frame is made up of 18 sector elements of correspondence or 36 sector elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520697127.3U CN205048149U (en) | 2015-09-10 | 2015-09-10 | Integrated furred ceiling structure of low temperature storage tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520697127.3U CN205048149U (en) | 2015-09-10 | 2015-09-10 | Integrated furred ceiling structure of low temperature storage tank |
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| CN205048149U true CN205048149U (en) | 2016-02-24 |
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| CN201520697127.3U Active CN205048149U (en) | 2015-09-10 | 2015-09-10 | Integrated furred ceiling structure of low temperature storage tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992929A (en) * | 2023-03-16 | 2023-04-21 | 中太海事技术(上海)有限公司 | Storage container for liquefied gas |
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2015
- 2015-09-10 CN CN201520697127.3U patent/CN205048149U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992929A (en) * | 2023-03-16 | 2023-04-21 | 中太海事技术(上海)有限公司 | Storage container for liquefied gas |
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