CN105485514B - LNG cold gas cylinder, storage tank, warehouse and defeated pipe - Google Patents
LNG cold gas cylinder, storage tank, warehouse and defeated pipe Download PDFInfo
- Publication number
- CN105485514B CN105485514B CN201410532462.8A CN201410532462A CN105485514B CN 105485514 B CN105485514 B CN 105485514B CN 201410532462 A CN201410532462 A CN 201410532462A CN 105485514 B CN105485514 B CN 105485514B
- Authority
- CN
- China
- Prior art keywords
- zirconium oxide
- oxide fibre
- felt
- storage tank
- lng
- 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.)
- Active
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to LNG cold gas cylinder, storage tank, warehouse and defeated pipes.It is interlayer between the LNG low temperature cylinders or storage tank liner and shell, wraps up Zirconium oxide fibre felt and Al foil combined thermal insulating material, interlayer vacuum-pumping 10 outside the tank‐2~10‐5Pa.The LNG low temperature warehouse is filled with Zirconium oxide fibre cotton between bulkhead and storage tank, and seals；In delivery pipe outer wrapping Zirconium oxide fibre felt and Al foil combined thermal insulating material and seal.Zirconium oxide fibre felt heat-insulating property of the present invention is good, low temperature resistant to reach -270 DEG C, and not accumulation of heat meets open fire and do not burn, and can meet LNG Storage, Transport safety requirements.
Description
Technical field
The present invention relates to one kind being used for LNG cold gas cylinder, storage tank, warehouse and defeated pipe, belongs to ultralow temperature liquid gas
Body storage, equipment technology field of transport.
Background technology
The boiling point of liquefied natural gas (LNG) is -162 DEG C, the LNG gas cylinders used under such low temperature environment, storage tank and defeated
Requirement of the pipe for Cryo Heat Insulation material is very high.Ultralow temperature lower thermal conductivity interval thermal insulation material at present, most representative is glass
Glass fibrous paper and rigid polyurethane foam.The shortcomings that polyurethane foam plastics is poor fire, dimensional stability under low temperature
Difference is easily deformed cracking, there is certain danger for the application in LNG ship.Glass fibre ultralow temperature heat-barrier material is using
When need and quantitative lower aluminium foil or non-woven fabrics are after MULTILAYER COMPOSITE, make the same insulating layer of imaging cotton-wadded quilt, be wrapped in liquid
On the storage facilities of gas.A kind of low temperature resistant LNG thermal insulation material of CN 101357979A (200810021989.9) offers and its system
Preparation Method, it is 60-97%, catalyst 0.1-2%, foam stabilizer 0.5-10%, foaming agent which, which is by polyols blend,
For 2-15%, fire retardant 2-15%, chain extender is the component A of 0.1-5% compositions；It is reacted again with the B component of isocyanates
It prepares and obtains.The material can be used for a long time in a low temperature of -220 DEG C or more, have good cold insulation and mechanical performance, can
It adapts to 300 DEG C or more temperature ranges rapidly to change, there is high flame retardant, thermal coefficient is small, can effectively prevent super-low liquid
Thermal losses is environmental protection and energy saving, free of contamination high-performance heat preservation, cold insulation material.But this kind of material should not be applied under a high vacuum, material
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 cylinders and liquid feeding panel.CN201198666Y
(200820111588.8) a kind of ultra low temperature liquefied natural gas underground gas storage warehouse is disclosed, which is all built in underground, library
Body wall is formed by enclosing curtain stake and reinforced concrete structure, and extremely low temperature tank is equipped in the library, is filled between the library wall and storage tank
There is heat-barrier material, is closed by prestressed dome structure at the top of the library；The library bottom is to being externally connected with appendix.CN103741980A
Disclose the design and manufacture of a kind of rectangle or rectangle ultra-large type LNG storage tank, it is mentioned that it is noted that the problem of be ultralow temperature
The selection of material.
There are outstanding the disadvantage is that insulation effect is poor for ultralow-temperature insulation structure and material at present, mainly low-temperature thermal conductivity compared with
Height, material reflectivity itself is relatively low, and vacuum air-changing rate is higher.Strength reduction under low temperature.Influence using effect.
Invention content
In view of the deficiencies of the prior art, the present invention provide a kind of liquefied natural gas (LNG) low temperature cylinder, storage tank, warehouse and
Defeated pipe.
A kind of liquefied natural gas (LNG) low temperature cylinder or storage tank, including liner, shell, are interlayer between liner and shell,
Zirconium oxide fibre felt and Al foil combined thermal insulating material, interlayer vacuum-pumping 10 are wrapped up outside the tank‐2~10‐5Pa。
The cross section of the storage tank is round, ellipse or rectangle.
Then a kind of defeated pipe of liquefied natural gas (LNG) low temperature is coated in defeated pipe outer wrapping Zirconium oxide fibre felt with aluminium foil
Outermost layer is fixed, is sealed.Alternatively, in defeated pipe outer wrapping Zirconium oxide fibre felt and Al foil combined thermal insulating material and sealing.
A kind of liquefied natural gas (LNG) low temperature warehouse, including bulkhead, storage tank, tank bottom to being externally connected with delivery pipe,
It is filled with Zirconium oxide fibre cotton between bulkhead and storage tank, and seals；It is compound in delivery pipe outer wrapping Zirconium oxide fibre felt and aluminium foil
Thermal insulation material simultaneously seals.
The Zirconium oxide fibre felt and Al foil combined thermal insulating material are Zirconium oxide fibre felt and aluminium foil reflecting layer MULTILAYER COMPOSITE,
Manufactured composite sheet；Wherein 6-8 μm of aluminum foil thickness, every layer of Zirconium oxide fibre felt thickness is in 1-20mm.Tensile strength is good.
The Zirconium oxide fibre cotton ZrO285% or more content, 1-3 μm of fibre diameter.1-3 centimetres of fibre length.
The Zirconium oxide fibre felt is that Zirconium oxide fibre cotton is uniformly paved into felt, and thickness is in 1-20mm.Zirconium oxide fibre
ZrO290% or more content, 1-3 μm of fibre diameter.1-3 centimetres of fibre length.
The Zirconium oxide fibre is the mixing of monoclinic phase, cubic phase or tetragonal phase and cubic phase.Preparation method is pressed
The prior art.
LNG low temperature cylinders described in the present invention or storage tank, warehouse, delivery pipe are closely related to and the relevant portion of heat-barrier material
Point, with reference to the prior art, the present invention is not specially limited for other component and structure.
Beneficial effects of the present invention：
The present invention uses inorganic ultrafine Zirconium oxide fibre felt and reflecting layer aluminium foil is isolated through MULTILAYER COMPOSITE, and heat-insulating property is good,
Zirconium oxide fibre can be low temperature resistant to -270 DEG C, and not accumulation of heat meets open fire and do not burn, and Zirconium oxide fibre is in LNG cold
Lower property is stablized.The storing and transporting security requirement of the inflammable medium of liquefied natural gas can be met.
In addition, deflation rate is small under Zirconium oxide fibre vacuum.And condition of high vacuum degree can be kept 10 for a long time‐2Pa or 10‐4Pa with
On.
Description of the drawings
Fig. 1 is LNG low-temperature storage tank diagrammatic cross-sections.Wherein 1, outer courage, 2 liners, 3 Zirconium oxide fibres and Al foil combined thermal insulating
Material, 4, interlayer.
Fig. 2 is the thermal insulation material schematic diagram after Zirconium oxide fibre felt and aluminium foil are compound layer by layer, 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 a kind of defeated pipe sectional view of LNG cold, 5, Zirconium oxide fibre felt, 6, aluminium foil, 7 be inner tube.
Specific implementation mode
With reference to embodiment, the present invention will be further described.But not limited to this.
Embodiment 1,
A kind of liquefied natural gas (LNG) low-temperature storage tank, cross-section structure as shown in Figure 1, including liner 2, shell 1, liner with
It is interlayer between shell, wraps up Zirconium oxide fibre felt and Al foil combined thermal insulating material, interlayer vacuum-pumping 10 outside the tank‐4~10‐ 5Pa。
The cross section of the storage tank is rectangle, and angle is smeared on four sides.
The Zirconium oxide fibre felt and Al foil combined thermal insulating material are：Monoclinic phase Zirconium oxide fibre cotton is prepared into felt, it is fine
Diameter is tieed up at 3-4 μm, felt thickness 4-5mm, the amplitude of felt is 1000mm；Fibrofelt and 7-8 μ m thick aluminium foils is compound layer by layer, until
Overall thickness about 20mm.
Embodiment 2,
A kind of defeated pipe of liquefied natural gas (LNG) low temperature, cross-section structure is as shown in figure 5, in defeated pipe outer wrapping Zirconium oxide fibre
Felt 5 (as shown in Figure 3), is then coated on aluminium foil 6 on Zirconium oxide fibre felt, is fixed, is sealed with end ring.
Claims (6)
1. a kind of liquefied natural gas (LNG) low temperature cylinder or storage tank, including liner, shell, are interlayer between liner 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；
The Zirconium oxide fibre felt and Al foil combined thermal insulating material are that Zirconium oxide fibre felt and aluminium foil reflecting layer alternate multiple are compound,
Manufactured composite sheet；Wherein 6-8 μm of aluminum foil thickness, every layer of Zirconium oxide fibre felt thickness is in 1-20mm.
2. LNG low temperature cylinders as described in claim 1 or storage tank, it is characterised in that the cross section of the storage tank is round, ellipse
Round or rectangle.
3. LNG low temperature cylinders as described in claim 1 or storage tank, it is characterised in that the Zirconium oxide fibre cotton ZrO2Content
85% or more, 1-3 μm of fibre diameter.
4. a kind of liquefied natural gas (LNG) low-temperature storage tank, including liner, shell, are interlayer between liner and shell, outside the tank
Wrap up Zirconium oxide fibre felt and Al foil combined thermal insulating material, interlayer vacuum-pumping 10-4~10-5Pa；
The cross section of the storage tank is rectangle, and angle is smeared on four sides；
The Zirconium oxide fibre felt and Al foil combined thermal insulating material are：Monoclinic phase Zirconium oxide fibre cotton is prepared into felt, fiber is straight
For diameter at 3-4 μm, felt thickness 4-5mm, the amplitude of felt is 1000mm；Fibrofelt and 7-8 μ m thick aluminium foil alternate multiples is compound, until
Overall thickness 20mm.
5. a kind of defeated pipe of liquefied natural gas (LNG) low temperature, it is characterised in that in defeated pipe outer wrapping Zirconium oxide fibre felt, then use aluminium
Foil is coated on outermost layer, fixing seal；Alternatively, in defeated pipe outer wrapping Zirconium oxide fibre felt and Al foil combined thermal insulating material and close
Envelope；
The Zirconium oxide fibre felt and Al foil combined thermal insulating material are that Zirconium oxide fibre felt and aluminium foil reflecting layer alternate multiple are compound,
Manufactured composite sheet；Wherein 6-8 μm of aluminum foil thickness, every layer of Zirconium oxide fibre felt thickness is in 1-20mm；
The Zirconium oxide fibre cotton ZrO285% or more content, 1-3 μm of fibre diameter；1-3 centimetres of fibre length.
6. a kind of liquefied natural gas (LNG) low temperature warehouse, including bulkhead, storage tank, tank bottom is to delivery pipe is externally connected with, in storehouse
It is filled with Zirconium oxide fibre cotton between wall and storage tank, and seals；In delivery pipe outer wrapping Zirconium oxide fibre felt and the compound guarantor of aluminium foil
Adiabator simultaneously seals；
The Zirconium oxide fibre felt and Al foil combined thermal insulating material are that Zirconium oxide fibre felt and aluminium foil reflecting layer alternate multiple are compound,
Manufactured composite sheet；Wherein 6-8 μm of aluminum foil thickness, every layer of Zirconium oxide fibre felt thickness is in 1-20mm；
The Zirconium oxide fibre cotton ZrO285% or more content, 1-3 μm of fibre diameter；1-3 centimetres of fibre length.
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 CN105485514A (en) | 2016-04-13 |
| CN105485514B true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN113847510A (en) * | 2021-11-18 | 2021-12-28 | 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 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3416693A (en) * | 1966-12-07 | 1968-12-17 | Cryogenic Eng Co | Refrigeration shielded dewar vessel |
| JPH07197019A (en) * | 1993-12-28 | 1995-08-01 | Kuraray Co Ltd | Cold-reserving material |
| KR20060019576A (en) * | 2003-07-04 | 2006-03-03 | 마쯔시다덴기산교 가부시키가이샤 | Vacuum thermal insulation material and equipment using the same |
| CN100559052C (en) * | 2008-07-03 | 2009-11-11 | 上海交通大学 | The fire retardant-type high vacuum multiple layer heat insulation structure that multiple material is compound |
| CN201228850Y (en) * | 2008-07-10 | 2009-04-29 | 上海海事大学 | LNG thermal insulation device |
| CN102767669A (en) * | 2012-07-25 | 2012-11-07 | 李顺贤 | High temperature resistant vacuum insulated sandwich panel and preparation method thereof |
| CN203348900U (en) * | 2013-06-08 | 2013-12-18 | 石家庄安瑞科气体机械有限公司 | Horizontal liquefied natural gas storage tank insulating heat efficiently |
| CN203453712U (en) * | 2013-08-09 | 2014-02-26 | 常州市聚能复合新材料有限公司 | Vacuum low-temperature thermal insulation composite material |
-
2014
- 2014-10-10 CN CN201410532462.8A patent/CN105485514B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485514A (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105485514B (en) | LNG cold gas cylinder, storage tank, warehouse and defeated pipe | |
| US20030203149A1 (en) | Microsphere insulation systems | |
| JP2009243518A5 (en) | Flexible tube for cryogenic fluid transport | |
| JP2010511845A (en) | Use of composites as barriers at cryogenic temperatures | |
| CN202914905U (en) | Steam conveying pipeline with three-layer heat preservation structure adopted | |
| CN202327524U (en) | Overhead steam conveying pipeline | |
| CN105443974A (en) | Gas storage tank | |
| JP4001184B2 (en) | Hot water storage tank | |
| CN205640209U (en) | Liquefied natural gas gas storage device | |
| CN103195985B (en) | There is the conveyance conduit of multilayer composite heat insulation structure | |
| CN103244758A (en) | Directly-embedded energy-saving steam conveying method | |
| KR101425830B1 (en) | Insulation module for liquid cargo tank | |
| CN201827643U (en) | High vacuum multilayer heat insulation liquid carbon dioxide tank box | |
| CN202611002U (en) | Double vacuum insulation panel for building outer wall | |
| CN208281794U (en) | A kind of LNG storage tank | |
| CN202327523U (en) | Direct burial steam conveying pipeline | |
| CN206398268U (en) | A kind of cold insulation of LNG pipeline | |
| CN206563426U (en) | Electric heater | |
| CN108591817A (en) | A kind of LNG storage tank | |
| CN105563950B (en) | It is a kind of to be applied to liquid gas storage, the ultralow temperature compound insulating material of transporting equipment | |
| CN212960446U (en) | Cold insulation device of FLNG low-temperature pipeline | |
| CN109185603A (en) | A kind of vacuum heat-insulating plate of low-thermal-bridge effect | |
| CN211081728U (en) | Economical long-life heat-insulating oil pipe | |
| CN208123745U (en) | A kind of high temperature long heat transport net pipe insulation construction | |
| CN207486337U (en) | A kind of insulation construction of heat distribution pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |