CN107013802A - A kind of LNG storage tank heat-insulation system - Google Patents
A kind of LNG storage tank heat-insulation system Download PDFInfo
- Publication number
- CN107013802A CN107013802A CN201710235716.3A CN201710235716A CN107013802A CN 107013802 A CN107013802 A CN 107013802A CN 201710235716 A CN201710235716 A CN 201710235716A CN 107013802 A CN107013802 A CN 107013802A
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- CN
- China
- Prior art keywords
- heat
- insulation layer
- layer
- insulation
- crack
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/001—Thermal insulation specially adapted for cryogenic vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0607—Coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/066—Plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/0663—Synthetics in form of fibers or filaments
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Present invention is disclosed a kind of LNG storage tank heat-insulation system, it is coated on the outside of LNG storage tank, prime coat is followed successively by outside interior, first heat-insulation layer, second heat-insulation layer, first crack-resistant layer, 3rd heat-insulation layer, 4th heat-insulation layer, second crack-resistant layer, 5th heat-insulation layer, 6th heat-insulation layer and protective layer, wherein prime coat is epoxy primer, its thickness is 2 ~ 5mm, first heat-insulation layer, second heat-insulation layer, 3rd heat-insulation layer, 4th heat-insulation layer, 5th heat-insulation layer and the 6th insulation layer thickness are 25 ~ 35mm, first crack-resistant layer and the second crack-resistant layer are fiberglass gridding cloth, the protective layer is polyurea coating, thickness is 2mm.
Description
Technical field
The present invention relates to breakout tank heat-insulation system, more particularly to a kind of LNG storage tank heat-insulation system.
Background technology
With advances in technology with the raising of human living standard, liquefied natural gas (LNG), liquid nitrogen (LN2), liquid oxygen
(LO2), the cryogenic liquefying material application such as liquid CO 2 (LCO2), liquefied petroleum gas (LPG) progressively expands, especially
LNG, main component is made up of methane.LNG is to be cooled to -162 DEG C by gaseous natural gas at ambient pressure, is allowed to condense into
Liquid.It is about the 1/600 of gaseous volume that volume after storage and transportation space, liquefaction can be greatlyd save after natural gas liquefaction, and is had
The features such as calorific value is big, performance is high.LNG is a kind of cleaning, the efficient energy, is increasingly favored as clean energy resource, a lot
LNG is all classified as preferred fuels by country, and ratio of the natural gas in energy supply increases sharply, and increases most swift and violent as the whole world
One of energy industry.LNG is by as the popular energy commodity that next whole world is fought for after oil.
But, the country still relies on groove tank car or gaseous state pipeline transportation using LNG as the transport of the deep cooling medium of representative at present,
And using a kind of deep cooling tank as storage container on ship, because LNG deep cooling mediums temperature is -162 DEG C, and ambient temperature is remote
Higher than this temperature, it is therefore desirable to which storage container has very strong heat-insulation and heat-preservation effect, general way is that increase is protected outside
Warm layer realizes thermal insulation, and most common thermal retardation form has rigid foam in-situ spraying, rigid foam preformed adhesive or foam glass
Glass.
The content of the invention
It is an object of the invention to the defect for overcoming prior art, there is provided a kind of LNG storage tank heat-insulation system, optimization insulation
Layer, the location layout of crack-resistant layer and protective layer so that whole heat-insulation system not only excellent thermal insulation performance, while being also equipped with crack resistance
Can, increased protective layer is both as vapour barrier, and as mechanical protection in addition, and the big temperature maintained in cryogenic system becomes
Structural loads caused by changing, it is ensured that heat-insulating property and mechanical performance.
To achieve the above object, the present invention proposes following technical scheme：
A kind of LNG storage tank heat-insulation system, is coated on the outside of LNG storage tank, is followed successively by prime coat outside interior, the first heat-insulation layer, the
Two heat-insulation layers, the first crack-resistant layer, the 3rd heat-insulation layer, the 4th heat-insulation layer, the second crack-resistant layer, the 5th heat-insulation layer and the 6th heat-insulation layer,
Wherein prime coat is epoxy primer, and its thickness is 2 ~ 5mm, first heat-insulation layer, the second heat-insulation layer, the 3rd heat-insulation layer, the 4th
Heat-insulation layer, the 5th heat-insulation layer and the 6th insulation layer thickness are 30 ± 5mm, and first crack-resistant layer and the second crack-resistant layer are glass
Fibrous mesh cloth.
Preferably, first heat-insulation layer and the second heat-insulation layer integral thickness are 50mm, the 3rd heat-insulation layer and the 4th is protected
Warm layer integral thickness is 70mm, and the 5th heat-insulation layer and the 6th heat-insulation layer integral thickness are 60mm.
Preferably, also having protective layer outside the 6th heat-insulation layer, it is two-component polyurea coating, and thickness is 2mm.
Preferably, first heat-insulation layer, the second heat-insulation layer, the 3rd heat-insulation layer, the 4th heat-insulation layer, the 5th heat-insulation layer and
6th heat-insulation layer is polyurethane hard foam, and it presses 1 by the isocyanide polyacids ester of diphenyl methane two and resin:1 mixes, wherein two
The isocyanide polyacids ester proportion of phenylmethane two is 1.23, and point viscosity is 249 ± 10%cps, and resin proportion is 1.19, and point viscosity is
401± 10%cps。
Preferably, the two-component polyurea coating is by component A carbamide paint and B component carbamide paint 1:1 mixing, wherein
Its density of component A carbamide paint is 1.08 ± 0.02g/cm3, and viscosity value is 650 ± 100cps, the density of B component carbamide paint
For 1.12 ± 0.02g/cm3, viscosity value is 600 ± 100cps.
Compared with prior art, a kind of LNG storage tank heat-insulation system that the present invention is disclosed, with following usefulness：Multilayer
Heat-insulation layer ensure that integral heat insulation performance, and increased fiberglass gridding cloth causes heat-insulation layer to have good crack resistence performance,
In addition outside protective layer maintains the big temperature change in cryogenic system both as vapour barrier, and as mechanical protection
Caused structural loads, it is ensured that heat-insulating property and mechanical performance.
Embodiment
Below in conjunction with the specific embodiment of the present invention, the technical scheme of the embodiment of the present invention is carried out clear, complete
Description.
A kind of disclosed LNG storage tank heat-insulation system, is coated on the outside of LNG storage tank, is followed successively by bottom outside interior
Enamelled coating, the first heat-insulation layer, the second heat-insulation layer, the first crack-resistant layer, the 3rd heat-insulation layer, the 4th heat-insulation layer, the second crack-resistant layer, the 5th protects
Warm layer, the 6th heat-insulation layer and protective layer.
Wherein prime coat is epoxy primer, and it is heat-insulation layer（Polyurethane hard foam）Adhesion promotor, thickness be 2 ~
5mm, with the foaming and intumescing of polyurethane hard foam, the low viscosity of epoxy primer causes polyurethane hard foam to infiltrate into tank body
In steel matter, it is brought into close contact so as to firmly be locked in and be realized on tank body, it is ensured that heat-insulating property.
First heat-insulation layer, the second heat-insulation layer, the 3rd heat-insulation layer, the 4th heat-insulation layer, the 5th heat-insulation layer and the 6th insulation
Layer, thickness is 30 ± 5mm, wherein the first heat-insulation layer and the second heat-insulation layer integral thickness are 50mm, the 3rd heat-insulation layer and the 4th
Heat-insulation layer integral thickness is 70mm, and the 5th heat-insulation layer and the 6th heat-insulation layer integral thickness are 60mm, and in material selection, first arrives
6th heat-insulation layer selects polyurethane hard foam, and its is flexible, the convergent-divergent with tank body thermal contraction or expansion, specific poly-
Urethane rigid foam presses 1 by the isocyanide polyacids ester of diphenyl methane two and resin:1 mixes, and wherein the isocyanide of diphenyl methane two gathers
Acid esters proportion is 1.23, and point viscosity is 249 ± 10%cps, and resin proportion is 1.19, and point viscosity is 401 ± 10%cps, and this two
Component is planted as the raw material of the hard microporous polyurethane foam needed for cold insulation, it has good mechanical strength, thermal conductivity
With in -196 DEG C to+80 DEG C remaining dimensionally-stable property.
First crack-resistant layer and the second crack-resistant layer be fiberglass gridding cloth, wherein the first crack-resistant layer be located at the second heat-insulation layer with
Between 3rd heat-insulation layer, there is 50mm distances between tank body, the effect of the crack-resistant layer is to prevent underbead crack（First heat-insulation layer
Or second heat-insulation layer）Extend to external insulation layer（Beyond 3rd heat-insulation layer）, second crack-resistant layer its be arranged on the 4th insulation
Having between layer and the 5th heat-insulation layer, between remaining first crack-resistant layer has 60mm distances between 70mm distances and protective layer, its
Main purpose is to prevent outside crackle（5th heat-insulation layer or the 6th heat-insulation layer）Extend to base insulating layer（4th heat-insulation layer with
It is interior）.
The protective layer is two-component polyurea coating, and thickness is 2mm, and specific two-component polyurea coating is applied by component A polyureas
Material and B component carbamide paint 1:1 mixing, wherein its density of component A carbamide paint are 1.08 ± 0.02g/cm3, and viscosity value is 650
± 100cps, the density of B component carbamide paint is 1.12 ± 0.02g/cm3, and viscosity value is 600 ± 100cps, by the protective layer
The polyurethane hard foam surface of stainless (steel) wire is sprayed on as the protective layer and water vapor barrier of a kind of uniformly continuous, due to this
Coating has enough pliabilitys, effectively maintains the big temperature change in cryogenic system to cause the structural loads of heat-insulation system,
Further prevent heat insulation layer structure from destroying.
The technology contents and technical characteristic of the present invention have revealed that as above, but those skilled in the art still may base
Make a variety of replacements and modification without departing substantially from spirit of the present invention, therefore, the scope of the present invention in teachings of the present invention and announcement
The content disclosed in embodiment should be not limited to, and various replacements and modification without departing substantially from the present invention should be included, and is this patent Shen
Please claim covered.
Claims (3)
1. a kind of LNG storage tank heat-insulation system, it is characterised in that：It is coated on the outside of LNG storage tank, is followed successively by prime coat outside interior,
First heat-insulation layer, the second heat-insulation layer, the first crack-resistant layer, the 3rd heat-insulation layer, the 4th heat-insulation layer, the second crack-resistant layer, the 5th heat-insulation layer
And the 6th heat-insulation layer, wherein prime coat is epoxy primer, and its thickness is 2 ~ 5mm, first heat-insulation layer, the second heat-insulation layer, the
Three heat-insulation layers, the 4th heat-insulation layer, the 5th heat-insulation layer and the 6th insulation layer thickness are 30 ± 5mm, first crack-resistant layer and
Two crack-resistant layers are fiberglass gridding cloth.
2. LNG storage tank heat-insulation system according to claim 1, it is characterised in that：First heat-insulation layer and the second insulation
Layer integral thickness is 50mm, and the 3rd heat-insulation layer and the 4th heat-insulation layer integral thickness are 70mm, the 5th heat-insulation layer and the 6th heat-insulation layer
Integral thickness is 60mm.
3. LNG storage tank heat-insulation system according to claim 1, it is characterised in that：Also have outside 6th heat-insulation layer
Protective layer, it is polyurea coating, and thickness is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235716.3A CN107013802A (en) | 2017-04-12 | 2017-04-12 | A kind of LNG storage tank heat-insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235716.3A CN107013802A (en) | 2017-04-12 | 2017-04-12 | A kind of LNG storage tank heat-insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107013802A true CN107013802A (en) | 2017-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710235716.3A Pending CN107013802A (en) | 2017-04-12 | 2017-04-12 | A kind of LNG storage tank heat-insulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107013802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022095206A (en) * | 2020-12-16 | 2022-06-28 | 三井Ｅ＆Ｓ造船株式会社 | Liquefied gas tank, method of manufacturing liquefied gas tank, and vessel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0356797A (en) * | 1989-04-26 | 1991-03-12 | Nichias Corp | Insulation construction for low temperature tank |
| US5231811A (en) * | 1992-03-16 | 1993-08-03 | Chicago Bridge & Iron Technical Services Company | Storage structures with layered thermal finish covering |
| CN1696025A (en) * | 2005-05-23 | 2005-11-16 | 西安交通大学 | Low temperature insulation container made from cellular porous polyester |
| JP2006009949A (en) * | 2004-06-25 | 2006-01-12 | Kawasaki Heavy Ind Ltd | Low-temperature liquefied gas storage tank |
| CN103162086A (en) * | 2011-12-13 | 2013-06-19 | 西安龙德科技发展有限公司 | Autoclave inner cavity insulation device |
| CN104776311A (en) * | 2014-03-18 | 2015-07-15 | 摩尔动力(北京)技术股份有限公司 | Liquefied gas storage tank and application method thereof |
| CN204528217U (en) * | 2015-02-15 | 2015-08-05 | Gti服务有限公司 | The insulation ruggedized construction of liquefied natural gas carrier A type tank body |
| CN204573568U (en) * | 2015-04-27 | 2015-08-19 | 昆明宗达经贸有限责任公司 | A kind of liquefied ammonia loading arm |
| CN104960804A (en) * | 2015-06-02 | 2015-10-07 | 青岛科技大学 | Styrene storage tank thermal control coating |
| WO2015169998A1 (en) * | 2014-05-06 | 2015-11-12 | Lngtainer Ltd | Isolation method for cryogenic gases and liquids |
| CN205372060U (en) * | 2016-03-01 | 2016-07-06 | 张家港富瑞重型装备有限公司 | LNG storage tank heat insulation layer |
-
2017
- 2017-04-12 CN CN201710235716.3A patent/CN107013802A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0356797A (en) * | 1989-04-26 | 1991-03-12 | Nichias Corp | Insulation construction for low temperature tank |
| US5231811A (en) * | 1992-03-16 | 1993-08-03 | Chicago Bridge & Iron Technical Services Company | Storage structures with layered thermal finish covering |
| JP2006009949A (en) * | 2004-06-25 | 2006-01-12 | Kawasaki Heavy Ind Ltd | Low-temperature liquefied gas storage tank |
| CN1696025A (en) * | 2005-05-23 | 2005-11-16 | 西安交通大学 | Low temperature insulation container made from cellular porous polyester |
| CN103162086A (en) * | 2011-12-13 | 2013-06-19 | 西安龙德科技发展有限公司 | Autoclave inner cavity insulation device |
| CN104776311A (en) * | 2014-03-18 | 2015-07-15 | 摩尔动力(北京)技术股份有限公司 | Liquefied gas storage tank and application method thereof |
| WO2015169998A1 (en) * | 2014-05-06 | 2015-11-12 | Lngtainer Ltd | Isolation method for cryogenic gases and liquids |
| CN204528217U (en) * | 2015-02-15 | 2015-08-05 | Gti服务有限公司 | The insulation ruggedized construction of liquefied natural gas carrier A type tank body |
| CN204573568U (en) * | 2015-04-27 | 2015-08-19 | 昆明宗达经贸有限责任公司 | A kind of liquefied ammonia loading arm |
| CN104960804A (en) * | 2015-06-02 | 2015-10-07 | 青岛科技大学 | Styrene storage tank thermal control coating |
| CN205372060U (en) * | 2016-03-01 | 2016-07-06 | 张家港富瑞重型装备有限公司 | LNG storage tank heat insulation layer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022095206A (en) * | 2020-12-16 | 2022-06-28 | 三井Ｅ＆Ｓ造船株式会社 | Liquefied gas tank, method of manufacturing liquefied gas tank, and vessel |
| JP7408901B2 (en) | 2020-12-16 | 2024-01-09 | 三井Ｅ＆Ｓ造船株式会社 | Liquefied gas tank, liquefied gas tank manufacturing method and ship |
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Application publication date: 20170804 |