CN105485514A - Cryogenic gas cylinders, storage tanks, storage bins and pipelines for liquefied natural gas - Google Patents
Cryogenic gas cylinders, storage tanks, storage bins and pipelines for liquefied natural gas Download PDFInfo
- Publication number
- CN105485514A CN105485514A CN201410532462.8A CN201410532462A CN105485514A CN 105485514 A CN105485514 A CN 105485514A CN 201410532462 A CN201410532462 A CN 201410532462A CN 105485514 A CN105485514 A CN 105485514A
- Authority
- CN
- China
- Prior art keywords
- zirconium oxide
- lng
- oxide fibre
- storage tank
- low temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 55
- 239000007789 gas Substances 0.000 title abstract description 12
- 239000011888 foil Substances 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 239000011229 interlayer Substances 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 45
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 41
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 41
- 239000011810 insulating material Substances 0.000 claims description 14
- 239000010410 layer Substances 0.000 claims description 12
- 239000005030 aluminium foil Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 abstract description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 8
- 238000007789 sealing Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 description 10
- 238000009413 insulation Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000004970 Chain extender Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- -1 catalyzer is 0.1-2% Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a liquefied natural gas (LNG) low-temperature gas cylinder, storage tank, storage bin and delivery pipe. An interlayer is arranged between a liner and a shell of the LNG low-temperature gas cylinder or the storage tank. The liner is coated with zirconia fibrofelt and aluminum foil composite thermal insulation materials. The interlayer is vacuumized to 10-2-10-5 Pa. According to the LNG low-temperature storage bin, the space between a bin wall of the storage tank is filled with zirconia fibrofelt, and sealing is conducted. The delivery pipe is coated with zirconia fibrofelt and aluminum foil composite thermal insulation materials, and sealing is conducted. According to the LNG low-temperature gas cylinder, storage tank, storage bin and delivery pipe, the zirconia fibrofelt is good in thermal insulated property, capable of resistant to the low temperature of -270 DEG C, free of thermal storage, and not burnt in open fire. The requirements of LNG storage and delivery safety can be met.
Description
Technical field
The present invention relates to a kind of for LNG cold gas cylinder, storage tank, warehouse and defeated pipe, belong to the storage of ultralow temperature liquid gas, equipment technology field of transport.
Background technique
The boiling point of LNG Liquefied natural gas (LNG) is-162 DEG C, and the LNG gas cylinder used under low temperature environment like this, storage tank and defeated pipe are very high for the requirement of Cryo Heat Insulation material.Current ultralow temperature lower thermal conductivity interval thermal insulating material, most is representational is glass fiber paper and rigid polyurethane foam.The shortcoming of urethane foam is poor fire, poor dimensional stability under low temperature, and easy strain cracking has certain danger for the application in LNG ship.Glass fibre ultralow temperature thermal-protective material needs in use and quantitatively lower aluminium foil or nonwovens, after MULTILAYER COMPOSITE, make the thermal insulation layer that imaging cotton-wadded quilt is the same, are wrapped on the storage facilities of liquid gas.CN101357979A (200810021989.9) provides a kind of low temperature resistant LNG thermal insulation material and preparation method thereof, this material is 60-97% by polyols blend, catalyzer is 0.1-2%, foam stabilizer is 0.5-10%, stabilizer is 2-15%, fire retardant is 2-15%, and chain extender is the component A of 0.1-5% composition; React with the B component of isocyanates again and prepare and obtain.This material can Long-Time Service under the low temperature more than-220 DEG C, there is good cold insulation and mechanical property, more than 300 DEG C temperature ranges can be adapted to change rapidly, there is high flame retardant, thermal conductivity is little, effectively can prevent the heat loss of super-low liquid, be environmental protection and energy saving, free of contamination high-performance insulation, cold insulation material.But this kind of material should not be applied under a high vacuum, material is that organic material ventilation rate is higher, is not suitable for vacuum multilayer insulation application.
CN203611733U discloses a kind of vehicle-mounted LNG gas cylinder and liquid feeding panel.CN201198666Y (200820111588.8) discloses a kind of ultra low temperature liquefied natural gas underground gas storage warehouse, this gas storage is all built in underground, storehouse body wall is by enclosing curtain stake and reinforced concrete construction forms, in the body of storehouse, extremely low temperature tank is installed, be filled with thermal-protective material between storehouse body wall and storage tank, body top, storehouse is closed by prestressed dome structure; To being externally connected with pneumatic tube bottom the body of storehouse.CN103741980A discloses the design and manufaction of a kind of rectangle or rectangular super sized type LNG storage tank, wherein mentions and wants Attention question to be selecting of ultralow temperature material.
It is that insulation effect is poor that current ultralow-temperature insulation structure and material exists outstanding shortcoming, and mainly low-temperature thermal conductivity is higher, and the reflectivity of material own is lower, and vacuum air-changing rate is higher.Under low temperature, intensity reduces.Affect using effect.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of LNG Liquefied natural gas (LNG) low temperature cylinder, storage tank, warehouse and defeated pipe.
A kind of LNG Liquefied natural gas (LNG) low temperature cylinder or storage tank, comprising inner bag, shell, is interlayer between inner bag and shell, wraps up Zirconium oxide fibre felt and Al foil combined thermal insulating material outside the tank, interlayer vacuum-pumping 10
?2~ 10
?5pa.
The cross section of described storage tank is circular, oval or rectangle.
The defeated pipe of a kind of LNG Liquefied natural gas (LNG) low temperature, at defeated pipe outer wrapping Zirconium oxide fibre felt, then overlays on outermost surface with Aluminium Foil Package and fixes, seals.Or, seal at defeated pipe outer wrapping Zirconium oxide fibre felt and Al foil combined thermal insulating material.
A kind of LNG Liquefied natural gas (LNG) low temperature warehouse, comprise bulkhead, storage tank, tank bottom, to being externally connected with delivery pipe, is filled with Zirconium oxide fibre cotton, and seals between bulkhead and storage tank; Seal at delivery pipe outer wrapping Zirconium oxide fibre felt and Al foil combined thermal insulating material.
Described Zirconium oxide fibre felt and Al foil combined thermal insulating material are Zirconium oxide fibre felt and aluminium foil reflecting layer MULTILAYER COMPOSITE, the composite sheet made; Wherein aluminum foil thickness 6-8 μm, every layer of Zirconium oxide fibre felt thickness 1 ?20mm.Tensile strength is good.
The cotton ZrO of described Zirconium oxide fibre
2content more than 85%, fiber diameter 1 ?3 μm.Length of staple 1 ?3 centimetres.
Described Zirconium oxide fibre felt is that Zirconium oxide fibre cotton is evenly paved into felt, and thickness is at 1 ?20mm.The ZrO of Zirconium oxide fibre
2content more than 90%, fiber diameter 1 ?3 μm.Length of staple 1 ?3 centimetres.
Described Zirconium oxide fibre is the mixing of monoclinic phase, Emission in Cubic or Tetragonal and Emission in Cubic.Preparation method is by prior art.
The LNG low temperature cylinder described in the present invention or storage tank, warehouse, delivery pipe closely relate to the part relevant to thermal-protective material, and miscellaneous part and structure are all with reference to prior art, and the present invention is not particularly limited to.
Beneficial effect of the present invention:
The present invention adopts inorganic ultrafine Zirconium oxide fibre felt and isolation reflecting layer aluminium foil through MULTILAYER COMPOSITE, and heat-insulating property is good, Zirconium oxide fibre can low temperature resistant Dao ?270 DEG C, not accumulation of heat, meet naked light and do not burn, Zirconium oxide fibre is stable in properties under LNG cold.The storing and transporting security requirement of the inflammable medium of LNG Liquefied natural gas can be met.
In addition, under Zirconium oxide fibre vacuum, venting rate is little.And can condition of high vacuum degree be kept for a long time 10
?2pa or 10
?4more than Pa.
Accompanying drawing explanation
Fig. 1 is LNG low-temperature storage tank generalized section.Wherein 1, outer courage, 2 inner bags, 3 Zirconium oxide fibres and Al foil combined thermal insulating material, 4, interlayer.
Fig. 2 is Zirconium oxide fibre felt and the aluminium foil thermal insulating material schematic diagram layer by layer after compound, 5, Zirconium oxide fibre felt, 6, aluminium foil.
Fig. 3 is the photo of Zirconium oxide fibre felt.
Fig. 4 is the photo of Zirconium oxide fibre cotton.
Fig. 5 is the defeated pipe sectional drawing of a kind of LNG cold, 5, Zirconium oxide fibre felt, 6, aluminium foil, and 7 is interior pipes.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.But be not limited thereto.
Embodiment 1,
A kind of LNG Liquefied natural gas (LNG) low-temperature storage tank, cross-section structure as shown in Figure 1, comprises inner bag 2, shell 1, is interlayer between inner bag and shell, wraps up Zirconium oxide fibre felt and Al foil combined thermal insulating material outside the tank, interlayer vacuum-pumping 10
?4~ 10
?5pa.
The cross section of described storage tank is rectangle, and angle is smeared on four limits.
Described Zirconium oxide fibre felt and Al foil combined thermal insulating material are: monoclinic phase Zirconium oxide fibre cotton is prepared into felt, fiber diameter 3 ?4 μm, felt thickness 4 ?5mm, the amplitude of felt is 1000mm; By fibrofelt and 7 ?8 μm of thick aluminium layers of foil layer compounds, be about 20mm to total thickness.
Embodiment 2,
The defeated pipe of a kind of LNG Liquefied natural gas (LNG) low temperature, cross-section structure as shown in Figure 5, defeated pipe outer wrapping Zirconium oxide fibre felt 5 (as shown in Figure 3), is then coated on Zirconium oxide fibre felt with aluminium foil 6, fixes with end ring, seal.
Claims (7)
1. LNG Liquefied natural gas (LNG) low temperature cylinder or a storage tank, comprise inner bag, shell, is interlayer between inner bag and shell, it is characterized in that wrapping up Zirconium oxide fibre felt and Al foil combined thermal insulating material outside the tank, interlayer vacuum-pumping 10
-2~ 10
-5pa.
2. LNG low temperature cylinder as claimed in claim 1 or storage tank, is characterized in that the cross section of described storage tank is circular, oval or rectangle.
3. LNG low temperature cylinder as claimed in claim 1 or storage tank, is characterized in that described Zirconium oxide fibre felt and Al foil combined thermal insulating material are Zirconium oxide fibre felt and aluminium foil reflecting layer MULTILAYER COMPOSITE, the composite sheet made; Wherein aluminum foil thickness 6-8 μm, every layer of Zirconium oxide fibre felt thickness is at 1-20mm.
4. LNG low temperature cylinder as claimed in claim 1 or storage tank, is characterized in that the cotton ZrO of described Zirconium oxide fibre
2content more than 85%, fiber diameter 1-3 μm.
5. the defeated pipe of LNG Liquefied natural gas (LNG) low temperature, is characterized in that, at defeated pipe outer wrapping Zirconium oxide fibre felt, then overlaying on outermost surface with Aluminium Foil Package, fixing seal; Or, seal at defeated pipe outer wrapping Zirconium oxide fibre felt and Al foil combined thermal insulating material.
6. LNG Liquefied natural gas (LNG) low temperature warehouse, comprises bulkhead, storage tank, and tank bottom, to being externally connected with delivery pipe, is filled with Zirconium oxide fibre cotton, and seals between bulkhead and storage tank; Seal at delivery pipe outer wrapping Zirconium oxide fibre felt and Al foil combined thermal insulating material.
7. the LNG low temperature warehouse as described in claim 5 or 6 or defeated pipe, is characterized in that described Zirconium oxide fibre felt and Al foil combined thermal insulating material are Zirconium oxide fibre felt and aluminium foil reflecting layer MULTILAYER COMPOSITE, the composite sheet made; Wherein aluminum foil thickness 6-8 μm, every layer of Zirconium oxide fibre felt thickness is at 1-20mm;
The cotton ZrO of described Zirconium oxide fibre
2content more than 85%, fiber diameter 1-3 μm; Length of staple 1-3 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410532462.8A CN105485514B (en) | 2014-10-10 | 2014-10-10 | LNG cold gas cylinder, storage tank, warehouse and defeated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410532462.8A CN105485514B (en) | 2014-10-10 | 2014-10-10 | LNG cold gas cylinder, storage tank, warehouse and defeated pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485514A true CN105485514A (en) | 2016-04-13 |
| CN105485514B CN105485514B (en) | 2018-08-14 |
Family
ID=55672681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410532462.8A Active CN105485514B (en) | 2014-10-10 | 2014-10-10 | LNG cold gas cylinder, storage tank, warehouse and defeated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105485514B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044442A (en) * | 2018-07-30 | 2018-12-21 | 中国人民解放军总医院第附属医院 | A kind of embedded hemostasis device |
| CN110617398A (en) * | 2019-01-17 | 2019-12-27 | 青岛凯迪力学应用研究所有限公司 | Low-temperature liquid storage tank and LNG gas station |
| CN112361204A (en) * | 2020-12-03 | 2021-02-12 | 江苏国富氢能技术装备股份有限公司 | Heat insulation and cold insulation structure of low-temperature vehicle-mounted liquid hydrogen bottle |
| CN113324173A (en) * | 2021-04-01 | 2021-08-31 | 一汽解放汽车有限公司 | Vehicle-mounted LNG (liquefied Natural gas) cylinder |
| CN114811271A (en) * | 2021-11-18 | 2022-07-29 | 杭州富士达特种材料股份有限公司 | Low temperature vacuum multi-layer thermal insulation structures comprising aerogel materials and methods of use |
| CN117183486A (en) * | 2023-08-03 | 2023-12-08 | 沪东中华造船(集团)有限公司 | Combined membranous material heat insulation structure for secondary cavity wall of liquefied natural gas cargo hold |
-
2014
- 2014-10-10 CN CN201410532462.8A patent/CN105485514B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044442A (en) * | 2018-07-30 | 2018-12-21 | 中国人民解放军总医院第附属医院 | A kind of embedded hemostasis device |
| CN109044442B (en) * | 2018-07-30 | 2023-11-14 | 中国人民解放军总医院第一附属医院 | Embedded hemostatic device |
| CN110617398A (en) * | 2019-01-17 | 2019-12-27 | 青岛凯迪力学应用研究所有限公司 | Low-temperature liquid storage tank and LNG gas station |
| CN112361204A (en) * | 2020-12-03 | 2021-02-12 | 江苏国富氢能技术装备股份有限公司 | Heat insulation and cold insulation structure of low-temperature vehicle-mounted liquid hydrogen bottle |
| CN113324173A (en) * | 2021-04-01 | 2021-08-31 | 一汽解放汽车有限公司 | Vehicle-mounted LNG (liquefied Natural gas) cylinder |
| CN114811271A (en) * | 2021-11-18 | 2022-07-29 | 杭州富士达特种材料股份有限公司 | Low temperature vacuum multi-layer thermal insulation structures comprising aerogel materials and methods of use |
| CN117183486A (en) * | 2023-08-03 | 2023-12-08 | 沪东中华造船(集团)有限公司 | Combined membranous material heat insulation structure for secondary cavity wall of liquefied natural gas cargo hold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485514B (en) | 2018-08-14 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180716 Address after: 250101 1-601A R & D center, 2350 development road, hi tech Zone, Ji'nan, Shandong Applicant after: Shandong de app energy saving materials Co., Ltd. Address before: No. 27, mountain Dana Road, Ji'nan City, Shandong, Shandong Applicant before: Shandong University |
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