CN104806873A - Bimetal wall fully covering low-temperature storage tank - Google Patents
Bimetal wall fully covering low-temperature storage tank Download PDFInfo
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- CN104806873A CN104806873A CN201510249394.9A CN201510249394A CN104806873A CN 104806873 A CN104806873 A CN 104806873A CN 201510249394 A CN201510249394 A CN 201510249394A CN 104806873 A CN104806873 A CN 104806873A
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Abstract
The invention provides a bimetal wall fully covering low-temperature storage tank, which comprises a low-temperature steel inner tank, a heat insulation layer, a tank top, a low-temperature steel outer tank and a concrete high frame carrying table, wherein the low-temperature steel inner tank comprises an inner tank bottom plate and an inner tank wall plate; the inner tank is provided with a tank wall reinforcing ring; A labyrinth sealing structure is adopted between the inner tank wall palte and the suspended ceiling plate, and the tank wall reinforcing rings are respectively arranged at the inner side of the inner tank; the low-temperature steel outer tank comprises an outer tank bottom plate, an outer tank wall plate, a tank top connecting pipe accessory and a bottom anchor bolt; the tank top comprises an arch-shaped net frame structure, a pressure-resistant ring, a skin plate and a suspended ceiling; the heat insulation layer comprises a tank bottom heat insulation layer, an annular space heat insulation layer arranged between the inner tank wall plate and the outer tank wall plate and a heat insulation layer arranged at the outer side of the suspended ceiling plate; the annular space heat insulation layer arranged between the inner tank wall plate and the outer tank wall plate comprises a heat edge and corner protection layer, a filling heat insulation layer and an elastic heat insulation layer. The bimetal wall fully covering low-temperature storage tank solves the technical problems of high manufacturing cost, complicated construction procedures and long construction period of the concrete large-size low-temperature storage tank, and has the advantages of high safety, low investment, low cost, small occupied area, large volume, short construction period and the like.
Description
Technical field
The present invention relates to a kind of Liquefied Hydrocarbon/LNG Storage, Transport equipment, be specifically related to the low-temperature storage tank of Liquefied Hydrocarbon/LNG Liquefied natural gas.
Background technique
Along with the development of petrochemical industry, Liquefied Hydrocarbon (Liquefied Hydrocarbon) and LNG Liquefied natural gas (Liquefied Natural Gas, hereinafter referred to as LNG) as chemical industry base stock and New-type fuel, be more and more subject to people's attention.In Chemical Manufacture, Liquefied Hydrocarbon is widely used in producing synthetic plastic, synthetic rubber, synthetic fiber and producing the products such as medicine, explosive, dyestuff.LNG is used as industrial chemicals also larger market, and the chemical product quantity of production is also very considerable.
In face of the situation that ecological environmental pollution is day by day serious, in order to optimize energy consumption structure, improving atmosphere environment, realizing the strategy of economic development of sustainable development, the status of clean, efficient environmental high-grade energy and fuel is more and more important.Liquefied Hydrocarbon has that calorific value is high, smoke dust, without breeze, the feature such as easy for operation, and LNG to be recognized be the hydrocarbon energy the cleanest on the earth, the two is widely used in energy field.The demand of domestic and international market to Liquefied Hydrocarbon and LNG storage facility progressively increases, and particularly has more demand to large-scale all-enclosuring type low-temperature storage tank.
Single containment type low-temperature storage tank can only by inner canister splendid attire cryogenic media in the past, and outer tank adopts Ordinary Steel, can only be used for supporting cold insulation layer and tank deck.Once inner canister reveals the generation that cannot stop accident, Security is not high, is used for the low-temperature storage tank of small volume.The feature of all-enclosuring type low-temperature storage tank is that inner canister adopts low temperature resistant design, can holding low-temperature liquid medium.Same outer tank also adopts low temperature resistant design, also can the low pressure boil-off gas of holding low-temperature liquid medium and storage medium.Be provided with good cold insulation layer between outer tank simultaneously, ensure steam output very low in cryogenic liquide storage process.All-enclosuring type low-temperature storage tank principal mode has prestressed concrete low-temperature storage tank and bimetal low-temperature storage tank.Current domestic built large-scale all-enclosuring type low-temperature storage tank majority is prestressed reinforced concrete storage tank, and its investment is large, cost is high, construction and installation program complicated, construction period is long, is more suitable for the super-huge Liquefied Hydrocarbon/LNG storage tank of more than 10 ten thousand steres.
Summary of the invention
The object of this invention is to provide a kind of bimetal wall all-enclosuring type low-temperature storage tank, the technical problem that high to solve concrete macrotype low-temperature storage tank cost, construction sequence is complicated, construction period is long.There is the advantages such as Security is good, little investment, cost are low, floor space is little, volume is large, construction period is short.
Technological scheme of the present invention is: a kind of bimetal wall all-enclosuring type low-temperature storage tank, it is characterized in that comprising Low temperature steel inner canister, heat insulation layer, tank deck, Low temperature steel outer tank and the overhead cushion cap of concrete, the tank skin stiffening ring that described Low temperature steel inner canister comprises interior tank bottom, interior tank shell and is arranged on inside inner canister; Described Low temperature steel outer tank comprises outer tank bottom, outer tank shell, tank deck attachment of nozzle and bottom crab-bolt, and tank deck attachment of nozzle is arranged on tank deck and passes perpendicularly through tank deck; Described heat insulation layer comprises heat insulation layer at the bottom of the tank between interior tank bottom and outer tank bottom, heat insulation layer outside annular space heat insulation layer, ceiling board between interior tank shell and outer tank shell, and wherein, between tank shell and outer tank shell, annular space heat insulation layer comprises hot corner protective layer, fills heat insulation layer and elasticity heat insulation layer; Described tank deck comprises arch grid structure structure, compression ring, skin panel and ceiling board, and described compression ring comprises top compression ring and sidewall compression ring, and arch grid structure structure (is rigidly connected by connecting plate and sidewall compression ring; Described ceiling board to be suspended in arch grid structure structure by pull bar and to lay heat insulation layer outside ceiling board on ceiling board top, adopts labyrinth seal structure between ceiling board and interior tank shell.
Described interior tank shell and outer tank shell include constantly increase from top to bottom together with thickness and assembly welding multiple tracks annular shell ring.
Described interior tank bottom and outer tank bottom include margin plate and center plate.
Outside described ceiling board, heat insulation layer adopts 100-1000mm blanket of glass wool, and most last layer blanket of glass wool is coated with aluminium foil.
Between described interior tank shell and outer tank shell, elasticity heat insulation layer adopts 100-400mm glass fibre elasticity blanket.
Fill heat insulation layer between described interior tank shell and outer tank shell and adopt swelling perlite powder.
The present invention has the following advantages:
Bimetal wall all-enclosuring type low-temperature storage tank of the present invention has that Security is good, little investment, cost are low, cold insulation is effective, processing simple installation, floor space is little, construction period is short advantage, effectively can improve Liquefied Hydrocarbon and LNG condition of storage, reduce carrying cost.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present invention.
Fig. 2 is the long splice composition of storage tank bottom of the present invention and tank skin.
Fig. 3 is the long splice composition of storage tank tank deck of the present invention and tank skin.
Description of symbols in accompanying drawing: crab-bolt bottom 1-, the outer tank shell of 2-, 3-compression ring, 4-skin panel; 5-pull bar, 6-ceiling board, 7-tank skin stiffening ring; 8-tank deck attachment of nozzle, tank shell in 9-, the overhead cushion cap of 10-concrete; heat insulation layer at the bottom of 11-tank, tank bottom in 12-, 13-elasticity heat insulation layer; 14-fills heat insulation layer, and 15-strengthens concrete ring beam, 16-hot corner protective layer; the outer tank bottom of 17-, heat insulation layer outside 18-ceiling board, 19-arch grid structure structure.
Embodiment
Describe the present invention below in conjunction with drawings and Examples.The bimetal wall all-enclosuring type low-temperature storage tank that wherein the present invention relates to is for storing Liquefied Hydrocarbon and LNG.
As shown in Figure 1, Figure 2, Figure 3 shows, the bimetal wall all-enclosuring type low-temperature storage tank that the present invention relates to comprises Low temperature steel inner canister, heat insulation layer, tank deck, Low temperature steel outer tank, the overhead cushion cap 10 of concrete.
One, Low temperature steel inner canister, comprise interior tank bottom 12, interior tank shell 9, inner canister has tank skin stiffening ring 7.Wherein, interior tank bottom 12 comprises margin plate and center plate.Inner canister material mainly adopts Low temperature steel, includes but not limited to following steel grade: SA-516, SA-537, SA-203, SA-645, SA-353, SA-553, JIS 9Ni590,11MnNi5,13MnNi6,12Ni14, X12Ni5, X7Ni9,08Ni3DR, 06Ni9DR etc.
Described interior tank shell 9, comprise constantly increase from top to bottom low-temperature steel plate thickness and assembly welding together multiple tracks annular shell ring.
Described tank skin stiffening ring 7 is all arranged on inside inner canister, comprises stiffening ring and interior tank skin top stiffening ring in the middle of interior tank skin.
Two, Low temperature steel outer tank, comprises outer tank bottom 17, outer tank shell 2, tank deck attachment of nozzle 8 and bottom crab-bolt 1.Wherein, described outer tank bottom 17 comprises margin plate and center plate.Outer tank material mainly adopts Low temperature steel, includes but not limited to following steel: SA-516, SA-537, SA-203, SA-645, SA-353, SA-553, JIS 9Ni590,11MnNi5,13MnNi6,12Ni14, X12Ni5, X7Ni9,08Ni3DR, 06Ni9DR etc.
Described outer tank shell 2, comprise constantly increase from top to bottom low-temperature steel plate thickness and assembly welding together multiple tracks annular shell ring, make outer tank shell 2 cryogenic media when revealing and boil-off gas can occur splendid attire inner canister.
Described tank deck attachment of nozzle 8, mainly comprises material turnover pipeline, BOG system process pipeline, temperature, pressure, liquid level instruction adapter, displacement and precooling pipeline etc.The adapter of turnover storage tank is all arranged on tank deck, and is and passes perpendicularly through tank deck.Cold pipeline adapter through tank deck covering and ceiling board is provided with sleeve pipe and adapter heat insulation layer.Divided by upper outside, be also provided with tank deck safety valve, vacuum breaker, roof manhole, expanded perlite fills the annex such as mouth and electrostatic grounding.
Three, tank deck, comprises arch grid structure structure 19, compression ring 3, skin panel 4 and ceiling board 6.
Described arch grid structure structure 19 can bear design pressure load in tank deck external load and tank.Arch grid structure structure 19 material mainly adopts Low temperature steel or structural steel.
Described compression ring 3 comprises top compression ring and sidewall compression ring.Arch grid structure structure 19 is rigidly connected by connecting plate and sidewall compression ring.Compression ring 3 material mainly adopts Low temperature steel.
Described ceiling board 6 to be suspended in arch grid structure structure 19 with pull bar 5 and to lay heat insulation layer on ceiling board 6 top.Ceiling board 6 material mainly adopts low-temperature steel plate or aluminum alloy plate materials.
Labyrinth seal structure is adopted between described ceiling board 6 and interior tank shell 9.
Four, heat insulation layer, comprises heat insulation layer 11 at the bottom of the tank between interior tank bottom 12 and outer tank bottom 17, heat insulation layer 18 outside annular space heat insulation layer, ceiling board between interior tank shell 9 and outer tank shell 2.
(1) wherein between tank shell 9 and outer tank shell 2 annular space heat insulation layer comprise hot corner protective layer 16, fill heat insulation layer 14 and elasticity heat insulation layer 13.Wherein hot corner protective layer 16 comprises the seal protection layer of hot corner heat insulation layer.Fill heat insulation layer 14 between interior tank shell 9 and outer tank shell 2 and adopt swelling perlite powder.Between interior tank shell 9 and outer tank shell 2, elasticity heat insulation layer 13 adopts 100-400mm glass fibre elasticity blanket.
(2) between interior tank bottom 12 and outer tank bottom 17, heat insulation layer 11 at the bottom of tank comprises tank feather edge cold insulation structure and Guan Di center cold insulation structure.
Wherein tank feather edge cold insulation structure comprises: strengthen concrete ring beam; High-intensity foam glass brick layer; Plain concrete screed-coat.
Wherein Guan Di center cold insulation structure comprises: dry husky screed-coat; Middle strength foam glass brick layer; Plain concrete screed-coat.
(3) outside ceiling board, heat insulation layer 18 adopts 100-1000mm blanket of glass wool, and most last layer blanket of glass wool will with aluminium foil facing material.
Five, bimetal wall all-enclosuring type low-temperature storage tank comprises the overhead cushion cap 10 of concrete, and thickness is 1 ~ 2 meter.
Six, interior outer tank main material adopts Low temperature steel.Low temperature steel is adopted with the ladder landing platform of medium contact in tank; Outer tank ladder landing platform adopts structural carbon steel.
The maximum day evaporative heat loss of described bimetal wall all-enclosuring type low-temperature storage tank is 0.04 ~ 0.09%.
Seven, bimetal wall all-enclosuring type low-temperature storage tank of the present invention also comprises monorail crane girder between expanded perlite backstop and interior outer tank.
Embodiment: 9 ten thousand stere bimetal wall all-enclosuring type low-temperature storage tanks.
Tank volume: 9 ten thousand steres;
Design metal temperature :-169 DEG C ~ 45 DEG C;
Reservoir type: bimetal wall all-enclosuring type low-temperature storage tank;
Storage medium: LNG;
Media density: 580kg/m3;
Fundamental wind pressure: 0.5kPa;
Design crushing by snow: 0.35kPa;
Type of foundation: the overhead cushion cap of concrete;
Allow heat waste: 0.05%/sky;
Seismic fortification intensity: 6 (0.05g);
9 ten thousand stere bimetal wall all-enclosuring type low-temperature storage tank physical dimensions;
Inner canister diameter: 62m;
Inner canister tank skin height: 32m;
Interior tank material: SA-553;
Design maximum liquid level: 30.5m;
Test liquid level: 30.5m;
Outer tank diameter: 64m;
Outer tank tank skin height; 34.5m
Outer tank material: SA-553;
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a bimetal wall all-enclosuring type low-temperature storage tank, is characterized in that comprising: Low temperature steel inner canister, heat insulation layer, tank deck, Low temperature steel outer tank and the overhead cushion cap of concrete (10),
The tank skin stiffening ring (7) that described Low temperature steel inner canister comprises interior tank bottom (12), interior tank shell (9) and is arranged on inside inner canister;
Described Low temperature steel outer tank comprises outer tank bottom (17), outer tank shell (2), tank deck attachment of nozzle (8) and bottom crab-bolt (1), and tank deck attachment of nozzle (8) is arranged on tank deck and passes perpendicularly through tank deck;
Described heat insulation layer comprises heat insulation layer (11) at the bottom of the tank between interior tank bottom (12) and outer tank bottom (17), heat insulation layer (18) outside annular space heat insulation layer, ceiling board between interior tank shell (9) and outer tank shell (2), and wherein, between tank shell (9) and outer tank shell (2), annular space heat insulation layer comprises hot corner protective layer (16), fills heat insulation layer (14) and elasticity heat insulation layer (13);
Described tank deck comprises arch grid structure structure (19), compression ring (3), skin panel (4) and ceiling board (6), described compression ring (3) comprises top compression ring and sidewall compression ring, and arch grid structure structure (19) is rigidly connected by connecting plate and sidewall compression ring; Described ceiling board (6) is suspended on arch grid structure structure (19) by pull bar (5) and goes up and lay heat insulation layer (18) outside ceiling board on ceiling board (6) top, adopts labyrinth seal structure between ceiling board (6) and interior tank shell (9).
2. bimetal wall all-enclosuring type low-temperature storage tank as claimed in claim 1, it is characterized in that described interior tank shell (9) and outer tank shell (2) include constantly increase thickness from top to bottom and assembly welding together the annular shell ring of multiple tracks.
3. bimetal wall all-enclosuring type low-temperature storage tank as claimed in claim 1, is characterized in that described interior tank bottom (12) and outer tank bottom (17) include margin plate and center plate.
4. bimetal wall all-enclosuring type low-temperature storage tank as claimed in claim 1, is characterized in that outside described ceiling board, heat insulation layer (18) adopts 100-1000mm blanket of glass wool, and most last layer blanket of glass wool is coated with aluminium foil.
5. bimetal wall all-enclosuring type low-temperature storage tank as claimed in claim 1, is characterized in that between described interior tank shell (9) and outer tank shell (2), elasticity heat insulation layer (13) adopts 100-400mm glass fibre elasticity blanket.
6. bimetal wall all-enclosuring type low-temperature storage tank as claimed in claim 1, is characterized in that filling heat insulation layer (14) between described interior tank shell (9) and outer tank shell (2) adopts swelling perlite powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249394.9A CN104806873A (en) | 2015-05-15 | 2015-05-15 | Bimetal wall fully covering low-temperature storage tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510249394.9A CN104806873A (en) | 2015-05-15 | 2015-05-15 | Bimetal wall fully covering low-temperature storage tank |
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| CN104806873A true CN104806873A (en) | 2015-07-29 |
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| CN201510249394.9A Pending CN104806873A (en) | 2015-05-15 | 2015-05-15 | Bimetal wall fully covering low-temperature storage tank |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641692A (en) * | 2015-11-03 | 2017-05-10 | 张家港中集圣达因低温装备有限公司 | Metal full-volume storage tank with secondary container protecting layer |
| CN107620858A (en) * | 2017-11-01 | 2018-01-23 | 浙江振申绝热科技股份有限公司 | Low-temperature storage tank bottom cold-keeping device |
| CN108061242A (en) * | 2018-01-22 | 2018-05-22 | 中海石油气电集团有限责任公司 | A kind of air hermetic whole concrete LNG full-capacity tanks |
| CN109737300A (en) * | 2019-01-10 | 2019-05-10 | 舟山市祥睿船舶科技开发有限责任公司 | A kind of energy-saving LNG fuel gas supply equipment |
| CN109899518A (en) * | 2019-04-10 | 2019-06-18 | 青岛达能环保设备股份有限公司 | Large-scale flat pressure-bearing heat-accumulator tank |
| CN109973813A (en) * | 2019-04-15 | 2019-07-05 | 南京扬子石油化工设计工程有限责任公司 | Bimetallic holds low-temperature storage tank entirely |
| CN110454677A (en) * | 2018-05-08 | 2019-11-15 | 中国石化工程建设有限公司 | For storing the full appearance tank with nonmetallic sealant of cryogenic media |
| EP4296559A1 (en) * | 2022-06-24 | 2023-12-27 | Cnooc Gas & Power Group | Large-scale ceiling structured low-pressure liquid hydrogen concrete storage tank |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641692A (en) * | 2015-11-03 | 2017-05-10 | 张家港中集圣达因低温装备有限公司 | Metal full-volume storage tank with secondary container protecting layer |
| CN107620858A (en) * | 2017-11-01 | 2018-01-23 | 浙江振申绝热科技股份有限公司 | Low-temperature storage tank bottom cold-keeping device |
| CN108061242A (en) * | 2018-01-22 | 2018-05-22 | 中海石油气电集团有限责任公司 | A kind of air hermetic whole concrete LNG full-capacity tanks |
| CN108061242B (en) * | 2018-01-22 | 2024-01-30 | 中海石油气电集团有限责任公司 | Airtight full concrete LNG holds storage tank entirely |
| CN110454677A (en) * | 2018-05-08 | 2019-11-15 | 中国石化工程建设有限公司 | For storing the full appearance tank with nonmetallic sealant of cryogenic media |
| CN110454677B (en) * | 2018-05-08 | 2021-07-30 | 中国石化工程建设有限公司 | Full-capacity tank with non-metallic sealing layer for storing low-temperature medium |
| CN109737300A (en) * | 2019-01-10 | 2019-05-10 | 舟山市祥睿船舶科技开发有限责任公司 | A kind of energy-saving LNG fuel gas supply equipment |
| CN109899518A (en) * | 2019-04-10 | 2019-06-18 | 青岛达能环保设备股份有限公司 | Large-scale flat pressure-bearing heat-accumulator tank |
| CN109973813A (en) * | 2019-04-15 | 2019-07-05 | 南京扬子石油化工设计工程有限责任公司 | Bimetallic holds low-temperature storage tank entirely |
| EP4296559A1 (en) * | 2022-06-24 | 2023-12-27 | Cnooc Gas & Power Group | Large-scale ceiling structured low-pressure liquid hydrogen concrete storage tank |
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