CN208253173U - A kind of internal plenum of low-temperature tank container - Google Patents
A kind of internal plenum of low-temperature tank container Download PDFInfo
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- CN208253173U CN208253173U CN201820532652.3U CN201820532652U CN208253173U CN 208253173 U CN208253173 U CN 208253173U CN 201820532652 U CN201820532652 U CN 201820532652U CN 208253173 U CN208253173 U CN 208253173U
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- inner pressurd
- pressurd vessel
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- heating
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Abstract
The utility model discloses a kind of internal plenums of low-temperature tank container, are related to cryogenic liquid vessel field, comprising: inner pressurd vessel, for loading cryogenic liquid, comprising: heating device carries out heating to the cryogenic liquid and is allowed to vaporization arrival supercharging effect；Outer container is set in the outside of the inner pressurd vessel, protects the inner pressurd vessel；Vacuum heat-insulating layer is arranged between the inner pressurd vessel and the outer container after heating device is arranged, and 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 internal pressurization of low-temperature tank container
Device.
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.In addition, General low temperature tank container is there is also unloading liquid time longer problem, since existing liquid mode of unloading is poor
Pressure type carries out unloading liquid, as LNG in tank by storage tank and by the pressure difference (differing pressure about >=0.35MPa) between fill device
Liquid gradually decreases, and internal pressure slowly reduces, and by pressure rise in fill device, therefore unloads the liquid later period and will appear that unload liquid difficult
Phenomenon, 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
The problem of generally existing preponderance, 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 inside increasing of low-temperature tank container
Pressure device, comprising:
Inner pressurd vessel, for loading cryogenic liquid, comprising:
Heating device carries out heating to the cryogenic liquid and is allowed to vaporization arrival supercharging effect；
Outer container is set in the outside of the inner pressurd vessel, protects the inner pressurd vessel；
Vacuum heat-insulating layer is arranged between the inner pressurd vessel and the outer container.
One embodiment according to the present utility model, wherein the heating device includes:
Heating tube, for heating the cryogenic liquid；And
Power supply device is powered for the heating tube；And
Controller PLC controls the power supply device and opens or closes；And
Pressure transmitter.
One embodiment according to the present utility model, wherein the heating tube is vertically installed at inner pressurd vessel bottom, described to add
Heat pipe connects the power supply device, and the power supply device is mounted in the pipe-line system, and the power supply device connects the control
Device PLC processed, the pressure transmitter are also connect with the controller PLC, and the pressure transmitter is mounted on storage tank.
One embodiment according to the present utility model, wherein the heating tube is low temperature resistant stainless steel or aluminium alloy material
Material is made
The utility model is by setting heating device, and heating internal pressure increases when formula container unloads liquid, so that unloading liquid
Speed is faster and more thorough.
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, present embodiment discloses a kind of new type low temperature tank container structure, including inner pressurd vessel 1, outer container
2, heating device 3, frame 4 and pipe-line system 5.Wherein, the annular space that inner pressurd vessel 1 and outer container 2 are coaxially disposed, therefore are formed
For vacuum heat-insulating layer, the storage tank thus formed is mounted on to install and to lift by crane on frame 4,4 front end of frame be equipped with for
Storage tank liquid feeding, the pipe-line system 5 for unloading 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 10:1.Wherein, cellular high density polymer stress is preferable, plays and internal layer is helped to bear interior pressure work
With.And polyurethane elastomer generally has good mechanical performance, and has certain resistance to low temperature.The expanded pearlite of incorporation
Rock is good heat-insulating material, and average thermal conductivity is K=0.0237W/m.k (under normal temperature and pressure), and chemical stability is good.
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%
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 storage tank, monitors tank inside
Pressure and to PLC sending pressure signal, when pressure inside the tank be lower with it is close by fill device when, PLC controls power supply device and opens,
Start the remaining liq in heating tube heating storage tank, be allowed to vaporize so that pressure inside the tank gradually rises, ensure that unload liquid speed degree and
Completeness.
In the present embodiment, heating tube can have low temperature resistant stainless steel or aluminium alloy to be made, and enable in storage tank
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 (4)
1. a kind of internal plenum of low-temperature tank container, characterized in that the internal plenum includes:
Inner pressurd vessel, for loading cryogenic liquid；
Heating device is arranged in the inner pressurd vessel, carries out heating to the cryogenic liquid and is allowed to vaporization arrival supercharging effect；
Outer container is set in the outside of the inner pressurd vessel, protects the inner pressurd vessel；
Vacuum heat-insulating layer is arranged between the inner pressurd vessel and the outer container.
2. a kind of internal plenum of low-temperature tank container according to claim 1, wherein the heating device packet
It includes:
Heating tube, for heating the cryogenic liquid；And
Power supply device is powered for the heating tube；And
Controller PLC controls the power supply device and opens or closes；And
Pressure transmitter.
3. a kind of internal plenum of low-temperature tank container according to claim 2, wherein the heating tube is vertical
It is mounted on inner pressurd vessel bottom, the heating tube connects the power supply device, and the power supply device is mounted in pipe-line system, described
Power supply device connects the controller PLC, and the pressure transmitter is also connect with the controller PLC, the pressure transmitter
It is mounted on storage tank.
4. a kind of internal plenum of low-temperature tank container according to claim 2, wherein the heating tube is resistance to
The stainless steel or aluminum alloy materials of low temperature are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532652.3U CN208253173U (en) | 2018-04-16 | 2018-04-16 | A kind of internal plenum of low-temperature tank container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532652.3U CN208253173U (en) | 2018-04-16 | 2018-04-16 | A kind of internal plenum of low-temperature tank container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208253173U true CN208253173U (en) | 2018-12-18 |
Family
ID=64637312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820532652.3U Active CN208253173U (en) | 2018-04-16 | 2018-04-16 | A kind of internal plenum of low-temperature tank container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208253173U (en) |
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2018
- 2018-04-16 CN CN201820532652.3U patent/CN208253173U/en active Active
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