CN108930906A - A kind of Dual-drum LNG low-temperature storage tank heat insulating construction - Google Patents
A kind of Dual-drum LNG low-temperature storage tank heat insulating construction Download PDFInfo
- Publication number
- CN108930906A CN108930906A CN201710373364.8A CN201710373364A CN108930906A CN 108930906 A CN108930906 A CN 108930906A CN 201710373364 A CN201710373364 A CN 201710373364A CN 108930906 A CN108930906 A CN 108930906A
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- CN
- China
- Prior art keywords
- drum
- storage tank
- dual
- temperature storage
- heat insulating
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- 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
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for thermal insulation
-
- 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
- F17C2203/03—Thermal insulations
- F17C2203/0391—Thermal insulations by vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention provides a kind of Dual-drum LNG low-temperature storage tank heat insulating constructions, in outer tank（1）Inner wall and inner canister（2）It is sticked on outer wall and is stained with eyeglass（5）Sheathing paper（4）, interlayer between interior outer tank body（3）It vacuumizes, vacuum degree≤0.001Pa, in interlayer（3）AG molecular sieve cryogenic absorption device is set；This structure eliminates conduction, convection current and radiant heat transfer, and heat-insulating property is excellent, uses hollow structure, and tank weights reduce.
Description
Technical field
The present invention is applied to natural gas storing field, and in particular to a kind of heat insulating construction of Dual-drum LNG low-temperature storage tank.
Background technique
Attention of the natural gas as clean energy resource increasingly by society is gradually permeated to sphere of life from industrial circle.
In general, the transport of gaseous natural gas CNG mostly uses duct type, and the place used is delivered directly to using pipeline.Liquid day
Right gas LNG mostly uses storage pot type, and LNG is generally stored in LNG storage tank with the pressure of 0.1-0.2MPa and -163 DEG C.In order to storage
Tank insulation, LNG storage tank mostly uses double-cylinder type structure, and outer tank mostly uses low-alloy steel to manufacture, and inner canister mostly uses stainless steel making, and two
Heat-insulating material is added between a tank body, is then vacuumized, to improve heat-insulating property.Patent No. CN201320330579.9
's《The liquefied natural gas horizontal tank of thermal insulation》A kind of heat insulating construction is given in patent：Wound insulation value on interior tank wall
And aluminium foil layer, pearlife is filled between interior outer tank.Such a structure increases the weight of Dual-drum LNG low-temperature storage tank, increase
Power transportation cost.
Summary of the invention
The present invention starts with from three kinds of conduction, convection current, radiation heat transfer types, and the insulation for solving Dual-drum LNG low-temperature storage tank is asked
Topic improves insulation effect, mitigates tank weights.
The technical solution adopted by the present invention is that：
Including outer tank and inner canister, the outer top tank structure and interior tank wall stick the sheathing paper for being stained with eyeglass respectively, the outer tank and
Interlayer between inner canister is vacuum structure.The sheathing paper for being stained with eyeglass is sticked in the outer wall of outer top tank structure and inner canister, utilizes eyeglass
Reflection eliminate radiant heat transfer, by interior outer tank body interlayer vacuum-pumping, eliminate conduction and convective heat transfer, thus play insulation effect
Fruit.
Further, to adapt to the external arc surface of inner canister and the Inner arc surface of outer tank, eyeglass is and sticks surface circular arc
The Arc lens or small size planar optics to match.
It further, is to improve the insulation effect for eliminating conduction and convection current, the vacuum degree of interior outer tank body interlayer is≤
0.001Pa。
Further, to avoid influence of the sundries in production process to heat-insulating property, interior outer tank interlayer body is provided with AG
Molecular sieve cryogenic absorption device.
To enhance insulation effect, no less than 10 layers of sheathing paper can be sticked in outer top tank structure and interior tank wall.
The technological progress achieved by the present invention is：
The present invention eliminates convection current and conduction heat transfer using condition of high vacuum degree and molecular sieve, eliminates radiation using reflex reflector lens and passes
Heat, heat-insulating property is excellent, realizes the storage of low-temperature storage tank LNG prolonged cold；Due to using hollow structure, tank weights reduce,
Reduce power transportation cost.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Wherein：1- outer tank, 2- inner canister, 3- interlayer, 4- sheathing paper, 5- eyeglass.
Specific embodiment
Fig. 1 schematic structural view of the invention sticks 12-13 layers of sheathing paper 4 on 2 outer wall of 1 inner wall of outer tank and inner canister, then will
The sheathing paper 4 for being stained with eyeglass 5 sticks on insulation paper layer, and the interlayer 3 between interior outer tank body vacuumizes, vacuum degree≤0.001Pa.
To avoid influence of the sundries in production process to heat-insulating property, interior outer tank interlayer body 3 is provided with AG molecular sieve cryogenic absorption
Device.
Before suit, eyeglass 5 is pasted on sheathing paper 4 in advance, is then sticky deposited in 2 outer wall of 1 inner wall of outer tank and inner canister
It is insulated on paper layer, to guarantee good fit, eyeglass 5 is and sticks the Arc lens or small size plane mirror that surface circular arc matches
Piece.
When outer tank end socket welds, using small current welding, while cooling provision is taken, prevent the sheathing paper of outer tank inner surface
4 and eyeglass 5 because welding high temperature damage.
The present invention eliminates convection current and conduction heat transfer using condition of high vacuum degree and molecular sieve, eliminates radiation using reflecting optics
Heat transfer, heat-insulating property is excellent, meets the requirement of low-temperature storage tank prolonged cold storage LNG.Due to using hollow structure, storage tank weight
Amount reduces, and reduces power transportation cost.
Claims (4)
1. a kind of Dual-drum LNG low-temperature storage tank heat insulating construction, including outer tank（1）And inner canister（2）, it is characterised in that：The outer tank
（1）Inner wall and inner canister（2）Outer wall, which sticks, is stained with eyeglass（5）Sheathing paper（4）, the outer tank（1）With inner canister（2）Between interlayer
（3）For vacuum.
2. a kind of Dual-drum LNG low-temperature storage tank heat insulating construction according to claim 1, it is characterised in that：The eyeglass（5）
For with stick the Arc lens or planar optics that surface circular arc matches.
3. a kind of Dual-drum LNG low-temperature storage tank heat insulating construction according to claim 1, it is characterised in that：The interlayer（3）
Vacuum degree≤0.001Pa.
4. a kind of Dual-drum LNG low-temperature storage tank heat insulating construction according to claim 1, it is characterised in that：The interlayer（3）
It is provided with AG molecular sieve cryogenic absorption device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710373364.8A CN108930906A (en) | 2017-05-24 | 2017-05-24 | A kind of Dual-drum LNG low-temperature storage tank heat insulating construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710373364.8A CN108930906A (en) | 2017-05-24 | 2017-05-24 | A kind of Dual-drum LNG low-temperature storage tank heat insulating construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108930906A true CN108930906A (en) | 2018-12-04 |
Family
ID=64450389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710373364.8A Withdrawn CN108930906A (en) | 2017-05-24 | 2017-05-24 | A kind of Dual-drum LNG low-temperature storage tank heat insulating construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108930906A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH467429A (en) * | 1967-03-31 | 1969-01-15 | Linde Ag | Method and device for heating an insulating space provided with an insulating material |
| CN201228850Y (en) * | 2008-07-10 | 2009-04-29 | 上海海事大学 | LNG thermal insulation device |
| CN102606874A (en) * | 2012-03-30 | 2012-07-25 | 哈尔滨工业大学 | Liquid oxygen container with multi-layer vacuum thermal insulation layer and fiber reinforced composite material layer |
| 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 |
| CN103968236A (en) * | 2014-04-29 | 2014-08-06 | 湖北三江航天江北机械工程有限公司 | Coating structure for low-temperature heat insulation container and coating method of coating structure |
| CN204554348U (en) * | 2015-03-23 | 2015-08-12 | 林世鸿 | Portable packet insulated cryogen gas cylinder |
| CN104874346A (en) * | 2015-05-21 | 2015-09-02 | 湖北三江航天江北机械工程有限公司 | Preparation method of maintenance agent for vacuum degree of heat insulation interlayer for welding heat insulation gas cylinder |
| CN204729913U (en) * | 2015-05-20 | 2015-10-28 | 中材科技（苏州）有限公司 | Double-deck low temperature gas tank |
-
2017
- 2017-05-24 CN CN201710373364.8A patent/CN108930906A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH467429A (en) * | 1967-03-31 | 1969-01-15 | Linde Ag | Method and device for heating an insulating space provided with an insulating material |
| CN201228850Y (en) * | 2008-07-10 | 2009-04-29 | 上海海事大学 | LNG thermal insulation device |
| CN102606874A (en) * | 2012-03-30 | 2012-07-25 | 哈尔滨工业大学 | Liquid oxygen container with multi-layer vacuum thermal insulation layer and fiber reinforced composite material layer |
| 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 |
| CN103968236A (en) * | 2014-04-29 | 2014-08-06 | 湖北三江航天江北机械工程有限公司 | Coating structure for low-temperature heat insulation container and coating method of coating structure |
| CN204554348U (en) * | 2015-03-23 | 2015-08-12 | 林世鸿 | Portable packet insulated cryogen gas cylinder |
| CN204729913U (en) * | 2015-05-20 | 2015-10-28 | 中材科技（苏州）有限公司 | Double-deck low temperature gas tank |
| CN104874346A (en) * | 2015-05-21 | 2015-09-02 | 湖北三江航天江北机械工程有限公司 | Preparation method of maintenance agent for vacuum degree of heat insulation interlayer for welding heat insulation gas cylinder |
Non-Patent Citations (1)
| Title |
|---|
| 朱昌伟；马国光；林燕红；张燃: "中小型LNG储罐的高真空多层绝热结构及影响因素", 《石油规划设计》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181204 |