CN208311941U - A kind of new type low temperature structure of container - Google Patents
A kind of new type low temperature structure of container Download PDFInfo
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- CN208311941U CN208311941U CN201820532660.8U CN201820532660U CN208311941U CN 208311941 U CN208311941 U CN 208311941U CN 201820532660 U CN201820532660 U CN 201820532660U CN 208311941 U CN208311941 U CN 208311941U
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- container
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- inner pressurd
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Abstract
The utility model discloses a kind of new type low temperature structure of container and its manufacturing methods, are related to cryogenic liquid vessel field, comprising: inner pressurd vessel, outer container, frame and pipe-line system.Vacuum heat-insulating layer is provided between inner pressurd vessel and outer container.Wherein, inner pressurd vessel is double-layer structure, including internal layer and outer layer, and the internal layer is made of aluminium alloy plate, with a thickness of 1-1.5mm；The outer layer is made of high molecular material and is honeycomb structure；Heating device is installed in the inner pressurd vessel.New type low temperature structure of container described in the utility model, quality nearly 28%-30% lighter than Conventional cryogenic structure tank container, so that equipment lightweight, and guarantee that charging appliance saves more fuel or useful load increases, after heating device is set, heating internal pressure increases when unloading liquid, so that it is faster and more thorough to unload liquid speed degree.
Description
Technical field
The utility model relates to cryogenic liquid vessel fields, are related specifically to a kind of new type low temperature structure of container.
Background technique
Low-temperature (low temperature) vessel is mainly used for storing and transporting cryogenic liquid, such as liquefied natural gas (LNG), liquid nitrogen and liquid hydrogen etc. low
Warm liquefied gas is widely used in production and life.LNG is a kind of by the liquefied liquefied gas of ultralow temperature (- 162 DEG C) normal pressure
Body, storage container generally use double-layer structure, including inner pressurd vessel and outer container, are provided with adiabatic heat-insulation between interior outer container
Layer, the storage and transport that can satisfy the long period require.
When designing low-temperature (low temperature) vessel, needs to consider its exhausted thermal insulation property of compatibility and low temperature between medium, also to have
There is the pressure effect of enough intensity reply internal liquids, is based on this, existing inner container portion material mostly uses 6-8mm's
Austenitic stainless steel needs so that integral device heavier-weight, can make charging appliance expend more fuel, limit its useful load
It improves.Wherein, it is common not will be installed external pressurization device generally in the case where considering the maximized situation of volume for tank container structure
Low-temperature tank container exists since existing liquid mode of unloading is differential pressure type and unloads liquid time longer problem, i.e., by storage tank and
It is carried out unloading liquid by the pressure difference (differing pressure about >=0.35MPa) between fill device, it is internal when LNG liquid gradually decreases in tank
Pressure slowly reduces, and by pressure rise in fill device, therefore unloads the liquid later period and will appear the phenomenon for unloading liquid difficulty, it is also desirable to overcome.
Such as the Chinese utility model patent that notification number is CN103221733B, one kind is disclosed " for liquefied natural gas
Storage container ", inner pressurd vessel is by withstanding metal (such as aluminium, stainless steel and the 5-9% nickel of the low temperature of the liquefied natural gas
Steel)) it is made and by the LNG storage in inside, outer container is made of the steel for withstanding internal pressure and around described
For inner pressurd vessel to form space with the inner pressurd vessel, space this set between inner pressurd vessel and outer container has thermal insulation layer component to subtract
Few heat transmitting, thermal insulation layer component can be made of granular pattern isolated material (such as perlite).The utility model is also in outer container
Outside is provided with outer insulative layer, prevents from transmitting from external heat by sealing the outside of outer container；In the outer of outer container
Portion is additionally provided with heating component.The technical solution is neither able to satisfy the lightweight demand in the market LNG instantly, is not also able to solve
Unload the problem of liquid difficulty.
For another example notification number is the Chinese utility model patent of CN203162528U, discloses a kind of " automobile-used aluminium alloy LNG liquid
Change natural gas bottle ", including gallbladder outside aluminium alloy and the aluminium alloy inner container for installing low temperature LNG liquid, in aluminium alloy outer gallbladder and aluminium alloy
Thermal insulation layer is equipped between gallbladder.The technical solution, which uses, to be used aluminum alloy materials and makes, and light-weighted requirement is met, when also not having
Be able to solve the problem for unloading liquid difficulty, and improve its low temperature it is exhausted in terms of can also be further improved.
Finally, disclosing a kind of " vehicle liquefied natural gas such as the Chinese utility model patent that notification number is CN2515507Y
Bottle " mainly includes shell and liner, is high-vacuum insulation layer between shell and liner, is wound with multilayer on the outer wall of liner
Heat insulation layer, the plurality of thermal insulation layers are superimposed by the screen material of high reflection and the isolated material of lower thermal conductivity.The technology
Although scheme more efficiently improves the thermal insulation property of low-temperature (low temperature) vessel, scheme is complex and is not able to satisfy lightweight need
It asks, is not also able to solve the problem for unloading liquid difficulty.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of new type low temperature structure of container, overcome existing low-temperature (low temperature) vessel
Generally existing weight is heavy, unloads the insufficient problem of liquid, while also guaranteeing its Cryo Heat Insulation thermal insulation property.
The utility model solves technical solution used by its technical problem are as follows: a kind of new type low temperature structure of container, including
Inner pressurd vessel, outer container, are provided with vacuum heat-insulating layer between inner pressurd vessel and outer container.Inner pressurd vessel is double-layer structure, including internal layer and
Outer layer, internal layer are made of aluminium alloy plate, and outer layer is made of high molecular material, and the high molecular material is by high density polyurethane and layer
Shape perlite composition.Polyurethane elastomer generally has good mechanical performance, and has certain resistance to low temperature.Incorporation
Expanded perlite is good heat-insulating material, and average thermal conductivity is K=0.0237W/m.k (under normal temperature and pressure), chemical stability
It is good.
Further, above-mentioned alloy sheets are flexible corrugation aluminium sheet, and with a thickness of 1-1.5mm, ripple struction meets internal layer
Rigidity requirement, internal layer unstability after preventing wall thickness thin.
Further, outer layer described above is honeycomb structure, has outstanding geometry and mechanical property.
Further, high density polyurethane is 100 parts, and stratiform perlite is 10-30 parts.
Further, internal layer and outer layer are fit together by adhesive.
Further, a heating device is provided in inner pressurd vessel.
Further, heating device includes heating tube, power supply device, pressure transmitter and controller PLC, wherein is added
Heat pipe it is vertical be mounted on inner pressurd vessel bottom, heating tube connects the power supply device, and power supply device connects the controller PLC,
Pressure transmitter is also connect with the controller PLC, and pressure transmitter is mounted on storage tank.Pressure transmitter is transmitted to PLC and is pressed
Force signal, when pressure inside the tank is lower and is close by fill device, PLC controls power supply device and opens, and starting heating tube heats storage tank
Interior remaining liq is allowed to vaporize, so that pressure inside the tank gradually rises, ensure that and unloads liquid speed degree and completeness.
The utility model additionally provides a kind of production technology for manufacturing above-mentioned low-temperature tank container, specifically includes following step
It is rapid:
(1) it suppresses aluminium alloy plate and makes inner pressurd vessel internal layer: carving ripple on steel rider, adjust the spacing between steel rider, allow
Aluminium alloy plate entirely passes through between two steel rolls, is stamped in ripple on aluminium alloy plate, and the corrugated aluminium completed with compacting
Alloy sheets manufacture inner pressurd vessel internal layer；
(2) it manufactures inner pressurd vessel outer layer: taking 100 parts of high density polyurethanes, 10 parts of expanded perlites, after being stirred completely,
It is molded into honeycomb, and is fitted on the internal layer that step 1 completes by glue；
(3) it manufactures outer container: manufacturing three outer barrel, outer front head and outer rear head parts of outer container respectively；
(4) it assembles: the inner pressurd vessel to complete in step 2 being covered in outer barrel in step 3, outer front head in welding
With outer rear head；
(5) it installs and vacuumizes: assembled tank body is mounted on frame, be laid with pipe-line system, and to the interlayer
Space is vacuumized.
Further, in step 2, when mixing high density polyurethane and expanded perlite, pay attention to keeping drying, guarantee it
Moisture content needs to keep temperature no more than 80 DEG C lower than 0.3%.
The beneficial effects of the utility model are: new type low temperature Storage tank container structure described in the utility model, breaks through normal
Rule, quality nearly 28%-30% lighter than Conventional cryogenic structure tank container, so that equipment lightweight, and guarantee charging appliance
It saves more fuel or useful load increases, after heating device is arranged, heating internal pressure is increased when unloading liquid, so that unloading liquid speed degree
Faster and more thoroughly.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of front view of new type low temperature tank container structure of the utility model.
Fig. 2 is the longitudinal sectional view of Fig. 1
In attached drawing
1, inner pressurd vessel 2, outer container 3, heating device
4, frame 5, pipe-line system
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the utility model.
As shown, being the described of the utility model present embodiment discloses a kind of new type low temperature tank container structure
Low-temperature (low temperature) vessel structure optimum embodiment, including inner pressurd vessel 1, outer container 2, heating device 3, frame 4 and pipe-line system 5.Its
In, the annular space that inner pressurd vessel 1 and outer container 2 are coaxially disposed, therefore are formed is vacuum heat-insulating layer, the storage tank installation thus formed
To install and to lift by crane on frame 4,4 front end of frame be equipped with for container liquid feeding, unload the pipe-line system 5 of liquid.
In the present embodiment, inner pressurd vessel 1 is double-layer structure, including internal layer and outer layer.
The material of internal layer uses the flexible corrugation aluminium sheet (aluminium alloy) of 1-1.5mm.Aluminium alloy have density it is low, it is nonmagnetic,
The characteristics such as alloy is mutually stable under low temperature, and specific resistance is small under magnetic field, air-tightness is good.Due to aluminium (alloy) material power at low ambient temperatures
It learns performance to meet the requirements, austenitic stainless steel can be substituted as low-temperature tank container inner pressurd vessel material.Ripple struction meets
The rigidity requirement of internal layer, internal layer unstability after preventing wall thickness thin.
Outer layer is honeycomb structure, is made of high density polyurethane and expanded perlite, polyurethane and expanded perlite
Ratio is as shown in table 1.
1 layer structure composition proportion table of table
| Ingredient | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| High density polyurethane | 100 parts | 100 parts | 100 parts | 100 parts | 100 parts |
| Expanded perlite | 10 parts | 15 parts | 20 parts | 25 parts | 30 parts |
Wherein, cellular high density polymer stress is preferable, plays and internal layer is helped to bear interior pressure and be used as, honeycomb
Structure is the regularly arranged of prismatic hexagon hole, can be easy to take out when vacuumizing, and is extracted into also thoroughly.And polyurethane elastomer
Generally there is good mechanical performance, and there is certain resistance to low temperature.The expanded perlite of incorporation is good heat insulating material
Material, average thermal conductivity are K=0.0237W/m.k (under normal temperature and pressure), and chemical stability is good, ensure that the heat insulating ability of low-temperature (low temperature) vessel
Energy.Static evaporation rate is carried out to above-described embodiment by GBT18443.5-2010 " vacuum insulation deep freeze refrigeration plant method for testing performance "
Measurement, testing result are as shown in table 2.
2 embodiment 1-5 static evaporation rate table of table
As shown in Table 2, embodiment 1-5 has the thermal insulation property of phase same level with common tank.
For inner pressurd vessel outer layer in addition to effect mentioned above, high density polyurethane intensity itself is relatively high, and incorporation expansion is precious
Intensity will be higher after Zhu Yan, and redesign is at honeycomb, i.e. regular hexagon structure, back-to-back symmetric arrays, with outstanding several
What mechanical property will have higher strength and stiffness than other sandwiches, and compared with riveted structure, structure efficiency be can be improved
15%~30%.Its strength test results is as shown in table 3 below, and embodiment 1-5 meets professional standard.
3 embodiment 1-5 strength test table of table
Internal layer and outer layer are fit together using glue.
In the present embodiment, outer container is low-alloy steel or austenitic stainless steel, is played to inner pressurd vessel and vacuum layer progress
The effect of protection, and it is internally provided with stiffening ring in outer container, stiffening ring is arranged by the moment of inertia of outer container, makes outer appearance
Device meets stability requirement under external pressure.
According to the conventional arrangement of the prior art in the art, pass through back and front supporting knot between outer container and inner pressurd vessel
Structure is attached and fixes.
In the present embodiment, heating device 3 includes heating tube, power supply device, pressure transmitter and controller PLC, heating
Pipe peace is mounted in the bottom of inner pressurd vessel 1 vertically, and power supply device is mounted in pipe-line system 5, and controller PLC is remote controller.Its
In, heating tube is controlled by power supply device, and power supply device is controlled by PLC.Pressure transmitter is mounted on container, is monitored inside container
Pressure and to PLC sending pressure signal, when container inner pressure be lower with it is close by fill device when, PLC control power supply device is opened
It opens, the remaining liq in starting heating tube heating container is allowed to vaporize, so that container inner pressure gradually rises, ensure that and unload liquid
Speed and completeness.
In the present embodiment, heating tube can be made of low temperature resistant stainless steel or aluminium alloy, enable in container
Cryogenic environment under work.
It is not provided with above-mentioned heating device 3 in traditional tank container structure, and is considering the maximized situation of volume
Under, external pressurization device will not be installed in tank container structure.The present embodiment meets section space-efficient and requires, and solves
Unload the problem of liquid difficulty.
The present embodiment also discloses a kind of production technology for manufacturing above-mentioned low-temperature tank container, specifically includes following step
It is rapid:
(1) it suppresses aluminium alloy plate and makes inner pressurd vessel internal layer: carving ripple on steel rider, adjust the spacing between steel rider, allow
Aluminium alloy plate entirely passes through between two steel rolls, is stamped in ripple on aluminium alloy plate, and the corrugated aluminium completed with compacting
Alloy sheets manufacture inner pressurd vessel internal layer.Inner pressurd vessel internal layer can be divided into three inner cylinder, interior front head and interior rear head parts, make respectively
After the completion of making, then pass through welding assembly.
(2) it manufactures inner pressurd vessel outer layer: taking 100 parts of high density polyurethanes, 10 parts of expanded perlites, after being stirred completely,
It is molded into honeycomb, and is fitted on the internal layer that step 1 completes by glue.Pay attention to doing when preparing outer layer making material
It is dry, it is ensured that its moisture content is lower than 0.3 ﹪, and temperature is not more than 80 DEG C when injection molding.
(3) manufacture outer container: outer container is made of three outer barrel, outer front head and outer rear head parts, is used respectively
Low-alloy steel or austenite stainless steel making are completed.
(4) it assembles: the inner pressurd vessel to complete in step 2 is covered in outer barrel, outer front head and outer rear envelope in welding
Head, wherein outer front head is connect with interior front head by front support structure, and outer rear head and interior rear head point out structure after passing through
Connection makes to form an annular interlayer space between outer container and inner pressurd vessel.
(5) it installs and vacuumizes: assembled tank body is mounted on frame, be laid with pipe-line system, and to interlayer space
It is vacuumized.
Although the illustrative specific embodiment of the utility model is described above, in order to the art
Technical staff is it will be appreciated that the utility model, but the utility model is not limited only to the range of specific embodiment, to this technology
For the those of ordinary skill in field, as long as long as the utility model that various change is limited and determined in the attached claims
In spirit and scope, all are created using the utility model of the utility model design in the column of protection.
Claims (7)
1. a kind of new type low temperature structure of container, including inner pressurd vessel, outer container, frame and pipe-line system, the inner pressurd vessel and outer appearance
Vacuum heat-insulating layer is provided between device, it is characterised in that: the inner pressurd vessel is double-layer structure, including internal layer and outer layer, it is described in
Layer is made of aluminium alloy plate；The outer layer is made of high molecular material, and the high molecular material is by high density polyurethane and stratiform
Perlite composition.
2. a kind of new type low temperature structure of container according to claim 1, it is characterised in that: the aluminium alloy plate is flexible wave
Line aluminium sheet, with a thickness of 1-1.5mm.
3. a kind of new type low temperature structure of container according to claim 1, it is characterised in that: the outer layer is honeycomb knot
Structure.
4. a kind of new type low temperature structure of container described in any one of -3 according to claim 1, it is characterised in that: the internal layer
It is fit together with outer layer by adhesive.
5. a kind of new type low temperature structure of container according to claim 1, it is characterised in that: be provided with one in the inner pressurd vessel
Heating device.
6. a kind of new type low temperature structure of container according to claim 5, it is characterised in that: the heating device includes heating
Pipe, power supply device, pressure transmitter and controller PLC.
7. a kind of low-temperature (low temperature) vessel structure according to claim 6, it is characterised in that: the heating tube is vertically installed at content
Device bottom, the heating tube connect the power supply device, and the power supply device is mounted in the pipe-line system, the power supply dress
The connection controller PLC is set, the pressure transmitter is also connect with the controller PLC, and the pressure transmitter is mounted on
On storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532660.8U CN208311941U (en) | 2018-04-16 | 2018-04-16 | A kind of new type low temperature structure of container |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532660.8U CN208311941U (en) | 2018-04-16 | 2018-04-16 | A kind of new type low temperature structure of container |
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| CN208311941U true CN208311941U (en) | 2019-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361543A (en) * | 2018-04-16 | 2018-08-03 | 张家港富瑞深冷科技有限公司 | A kind of new type low temperature structure of container and its manufacturing method |
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2018
- 2018-04-16 CN CN201820532660.8U patent/CN208311941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361543A (en) * | 2018-04-16 | 2018-08-03 | 张家港富瑞深冷科技有限公司 | A kind of new type low temperature structure of container and its manufacturing method |
| CN108361543B (en) * | 2018-04-16 | 2023-11-17 | 张家港富瑞深冷科技有限公司 | Novel low-temperature container structure and manufacturing method thereof |
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