CN1333198C - High vacuum heat insulation low temperature liquefied gas storage tank - Google Patents

High vacuum heat insulation low temperature liquefied gas storage tank Download PDF

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Publication number
CN1333198C
CN1333198C CNB2004100090131A CN200410009013A CN1333198C CN 1333198 C CN1333198 C CN 1333198C CN B2004100090131 A CNB2004100090131 A CN B2004100090131A CN 200410009013 A CN200410009013 A CN 200410009013A CN 1333198 C CN1333198 C CN 1333198C
Authority
CN
China
Prior art keywords
end socket
shell
storage tank
inner bag
supporting structure
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.)
Expired - Lifetime
Application number
CNB2004100090131A
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Chinese (zh)
Other versions
CN1683816A (en
Inventor
汪荣顺
孙洪利
罗永欣
石玉美
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Jiaotong University
China International Marine Containers Group Co Ltd
Original Assignee
Shanghai Jiaotong University
China International Marine Containers Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Jiaotong University, China International Marine Containers Group Co Ltd filed Critical Shanghai Jiaotong University
Priority to CNB2004100090131A priority Critical patent/CN1333198C/en
Priority to DE112005000873T priority patent/DE112005000873T5/en
Priority to PCT/CN2005/000447 priority patent/WO2005100210A1/en
Publication of CN1683816A publication Critical patent/CN1683816A/en
Application granted granted Critical
Publication of CN1333198C publication Critical patent/CN1333198C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/02—Large containers rigid
    • B65D88/12—Large containers rigid specially adapted for transport
    • B65D88/128—Large containers rigid specially adapted for transport tank containers, i.e. containers provided with supporting devices for handling
    • 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
    • F17C13/08—Mounting arrangements for vessels
    • F17C13/083—Mounting arrangements for vessels for medium-sized mobile storage vessels, e.g. tank vehicles or railway tank vehicles
    • 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
    • F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/035—Orientation with substantially horizontal main axis
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/054—Size medium (>1 m3)
    • 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
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/011—Reinforcing means
    • F17C2203/012—Reinforcing means on or in the wall, e.g. ribs
    • 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
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/014—Suspension means
    • 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
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0337—Granular
    • F17C2203/0341—Perlite
    • 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
    • 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
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • 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
    • F17C2203/0636—Metals
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0103—Exterior arrangements
    • F17C2205/0107—Frames
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/0126—One vessel
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/031—Dealing with losses due to heat transfer
    • F17C2260/033—Dealing with losses due to heat transfer by enhancing 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0171—Trucks

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  • 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

The present invention provides a multilayer liquefied gas storage tank with high vacuum, heat insulation and low temperature, which comprises a frame and a tank body, wherein the tank body is composed of an outer shell, an inner container and a combined supporting structure for connecting the outer shell with the inner container. The combined supporting structure is only arranged between an internal seal head and an external seal head on both ends of the tank body, and then, the combined supporting structure can bear radial load and axial load. The heat transmission area of the inner container and the outer shell is small, the bearing ability of the supporting structure is large, and the efficient loading volume of the inner container is large.

Description

High-vacuum insulation liquefied gas at low temp storage tank
Technical field
What the present invention relates to is a kind of liquefied gas at low temp warehousing and transportation facilities, more particularly relates to high-vacuum insulation low-temperature liquefaction gas storage tank, and it can be to be suitable for the tank car or the tank container of transfer of cryogenic liquid gas efficiently.The present invention is by possessing the little gap high vacuum multiple layer heat insulation inner supporting structure of superior impact resistance and heat-insulating capability, realized that impact force and acknowledgement of consignment medium temperature that the liquefied gas at low temp warehousing and transportation facilities bears change the requirement of satisfying the liquefied gas at low temp accumulating in running, and the vacuum layer between low-temperature (low temperature) vessel inner bag and the urceolus is the thinnest, finally realizes the charging ratio maximum of liquefied gas at low temp.The invention belongs to cryogenic engineering and cryogenic technique field.
Background technique
The vacuum one powder isolation technology of being born in 1909 makes the performance of low-temperature storage tank be greatly improved.To the end of the thirties in last century, it is the whole low temperature field of representative that vacuum one powder isolation has been widely used in air separation and liquefaction.At the beginning of the fifties in last century, high vacuum multiple layer heat insulation has occurred, it is the historical important development of Cryo Heat Insulation, particularly in the latter stage fifties, because the development of space technology, the consumption surge of liquid hydrogen, liquid helium has promoted the research and the application of high vacuum multiple layer heat insulation greatly, wherein, the tank car of transfer of cryogenic liquid gas and tank container are exactly main application product.
In the cryogenic technique field, liquefied gas at low temp refers to the gas that exists with liquid form below-160 ℃, for example liquid oxygen, liquid nitrogen, liquid argon, liquid hydrogen, liquid helium, liquid methane and LNG etc.Because the liquid volume ratio gaseous state of this class gas dwindles about 600 times, therefore often with the mode accumulating of liquid state.The equipment of transfer of cryogenic liquid gas, comprise tank car and jar case etc., tank body is a double layer construction, be vacuum layer between inner bag and the shell, inner bag is connected by supporting structure with shell, because the requirement of transport law, warehousing and transportation facilities (tank car and jar case etc.) all has maximum boundary dimension restriction, under the situation that has limited maximum boundary dimension, the actual volume of the medium that warehousing and transportation facilities (tank car and jar case etc.) can load and transport just depends on the thickness of vacuum layer.
A vacuum-powder isolation tank car and a jar case are present domestic comparatively general low temperature haulage devices, be by the vacuum layer between shell and inner bag add perlite wait realize heat insulation, in order to reach satisfied effect of heat insulation, vacuum layer is comparatively thick, usually vacuum layer thickness is at 200 ~ 300 millimeters, therefore, the actual volume of actual shipment goods has just been sacrificed; Add the deposition of perlite in transportation process, the heat-shielding performance of haulage device is affected.So the application of high vacuum multiple layer heat insulation technology in haulage device promoted.Model utility ZL00216678.X, ZL00249960.6, ZL01272605.2 are exactly the application case of high vacuum multiple layer heat insulation technology in haulage device.
High vacuum multiple layer heat insulation warehousing and transportation facilities (tank car and jar case etc.) is the outer surface winding thermal-protective material at the tank body inner bag, and by the vacuum sandwich pumping high vacuum that comprises multilayer insulation material is formed heat insulation layer, vacuum sandwich is thin more, and it is many more that tank body loads conveying medium; But heat insulation layer is thin more, the difficult more layout of supporting structure that connects inner bag and shell, heat insulation layer is thin more, condition of high vacuum degree is low more, and the heat transfer of inner bag and shell is many more, and the heat loss of liquefied gas at low temp is big more, present multilayer heat insulation technology, in ZL00249960.6 and ZL01272605.2, consider the layout of radial support in the vacuum layer, the vacuum layer thickness between shell and the inner bag is also had in 100 millimeter.The inner supporting structure of inner bag and shell should bear because the power that liquid load, storage tank weight and respective impact acceleration are produced, also must reduce the caused leaking heat of inner supporting structure as far as possible, so inner supporting structure is the key of low-temperature storage tank design.In the existing technology, both at home and abroad at present on the low-temperature storage tank that adopts there be inner supporting structure: 1) the mat insulation block structure between inner bag and shell, play the expand with heat and contract with cold problem of caused high vacuum multiple layer heat insulation damage layer or interruption of the big problem of supporting leaking heat and inner barrel but can not effectively solve high vacuum multiple layer heat insulation spacing introductory note; 2) stainless steel sleeve tubular construction between inside and outside end socket, it is poor that the spacing of making difficulty, inside and outside end socket reaches impact resistance greatly, and leaking heat is bigger; 3) hang the drawstring structure, the impact resistance decline problem that can not effectively solve expands with heat and contract with cold causes; 4) the low-temperature (low temperature) vessel resisting strong impact supporting structure of model utility ZL00216678.X, contact gap increases when requiring the end socket spacing to reach normal temperature greatly to change low temperature over to, and the shock resistance level reduces.
Along with the development of China's liquefied gas at low temp can-type storage, in the dimensional range that limits, how to increase the storage volumes of liquefied gas at low temp effectively and improve heat insulation and the shock resistance level, be the target that artificers pursue.The present invention has overcome the deficiency that existing support design exists, and is characterized in that thermal-protective coating is thin, heat-shielding performance is superior and the liquid storage volume is big.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of high-vacuum insulation liquefied gas at low temp storage tank, wherein between the shell end socket of tank body end and liner end enclosure, adopted the combination supporting structure of bearing radial force and axial force simultaneously, combination supporting structure is processed by suitable glass fibre reinforced plastics or similar material, and high-vacuum insulation liquefied gas at low temp storage tank provided by the invention has overcome one or more problems that limitation and shortcoming because of prior art cause basically.
Other advantage of the present invention, purpose and feature will provide in the following description, to those skilled in the art, a part of advantage, purpose and feature wherein can obviously draw or obtain by practice of the present invention by following analysis.Structure by particularly pointing out in explanatory note part, claims and accompanying drawing can realize and obtain purpose of the present invention and other advantage.
In order to acquire these advantages with other advantage and according to purpose of the present invention, be described as realizing the purpose of inventing as concrete and broad sense, high-vacuum insulation storage tank of the present invention comprises: framework and tank body, described tank body is made up of the supporting structure of the high-vacuum insulation layer between shell, inner bag, shell and the inner bag and connection shell and inner bag, described shell and inner bag comprise direct tube section and end socket, and wherein said supporting structure is shell end socket and the bearing radial force between the liner end enclosure and the combination supporting structure of axial force that is arranged on the tank body end.
Storage tank of the present invention comprises framework and tank body.For tank car, framework refers to by certain mode and the fixing automobile chassis of tank body; For the jar case, framework refers to be fixed on the container structure framework that limits in the dimensional range by certain mode.
In storage tank of the present invention, because wherein the combination supporting structure that adopts only is arranged between the inside and outside end socket at tank body two ends, compare with the tank body that model utility ZL00249960.6 and ZL01272605.2 are related, radial support has defaulted, thereby reduced the junction surface heat transfer area of inner bag and shell, thereby obtain better effect of heat insulation, simultaneously owing to defaulted at the radial support of direct tube section, high-vacuum insulation layer at shell and inner bag can be thinned to 50 millimeters, enlarge the inner bag actual volume, improved efficiency of loading.
According to storage tank of the present invention, wherein said liner end enclosure is the center inner concavity and forms the little end socket that is inverted, and the end socket cambered surface of the cambered surface of described little end socket and described shell is reverse.
The tank body shell of storage tank of the present invention comprises the outer heat exchanger head in a left side, outer straight barrel, right outer heat exchanger head and stiffening ring, unlike the prior art be, the shell stiffening ring is located at housing exterior, make like this under the situation that obtains same enclosure internal diameter, identical stiffening ring specification, shell uses material few, conduct oneself with dignity little, cost is low, stiffening ring also plays the protecting sheathing effect; Inner bag is formed (2 show about bright tank body with reference to the accompanying drawings) by heat exchanger head, interior straight barrel, right interior heat exchanger head in the left side, liner end enclosure and shell end socket are installed in the other direction, inner bag has twined multilayer insulant, inner bag is connected by the combination supporting structure between heat exchanger head inside and outside the two ends with shell, and bearing radial force and axial force.Because liner end enclosure and shell end socket are installed in the other direction, combination supporting structure can be placed in the interior end socket, thereby make the gap between the inside and outside end socket narrower, make under big situation such as shell, the internal dimensions of the loading space of inner bag is bigger, and this is that model utility ZL00216678.X, ZL00249960.6 and the related tank body of ZL01272605.2 do not possess.
According to storage tank of the present invention, wherein said supporting structure is provided with a supporting disk, and it contacts with the described little end socket that is inverted; Also be provided with two retaining rings in addition, be used to keep described supporting disk, described retaining ring is distributed in the both sides of described supporting disk, described supporting disk and be inverted and be provided with self-adjustable contact gap between the little end socket.
According to storage tank of the present invention, comprise also that wherein one is arranged between shell end socket and the liner end enclosure and passes the axially mounting device of the center hole of described supporting disk, described axially mounting device comprises:
One support column fixes with described shell end socket inboard, and the support column inwall is provided with a jut;
One supporting axle fixes with the described little end socket that is inverted, and passes described jut and stretches in the described support column;
One locking element is arranged on the end of described supporting axle; It can be a lock nut or similar parts, and first cushion block, it is locked between described locking element and the jut and second cushion block, it is locked between the jut of described be inverted little end socket and this support column, the spacing that is used to transmit the liner end enclosure of supported end of thrust load and shell end socket in the described supporting structure depends on the pipe fluid-tight of defeated discharge opeing body and gas and expands with heat and contract with cold and compensates required spacing, for example, this spacing can be about 300 millimeters.In addition, be one to have the end of reinforced structure for the bearing strength that improves support column can also make the end of described support column.
According to storage tank of the present invention, comprise also that wherein one is fixed on the reinforcement tube in the shell end socket, described reinforcement tube is arranged on the outside of support column, can also be provided with a stiffening plate between described reinforcement tube and support column.For the ease of the installation of inner bag, the little end socket that is inverted of inner bag is provided with the horizontal techniques pipe that matches with described support column, also is provided with stiffening plate in described shell and liner end enclosure.
Combination supporting structure mainly comprises left radial support dish, right radial support dish, right axially cushion block (the second above alleged cushion block), a left side axially cushion block (the first above alleged cushion block) and support column.Left side radial support dish is arranged on the tank body left end, and right radial support dish is arranged on the tank body right-hand member, the radial force of bearing inner bag and load medium thereof jointly and being produced; A right axially cushion block and a left side axially cushion block all are arranged on the tank body left end, make tank body in moving process, and inner bag and load medium produce reaches left thrust load to the right, and a right axially cushion block of compressing and a left side axially behind the cushion block, by support column, pass to shell.By adopting finite element structure and hot analysis software, controllably design and to satisfy stressed under the maximum load rate and the inner supporting structure leaking heat requirement, as long as tape spool is the structure needs when the end socket gap of supported end is satisfied pipe and drawn, really realized the inner supporting structure that is complementary with high vacuum multiple layer heat insulation structure.The left radial support dish in the combination supporting structure and the outer ring of right radial support dish contact to the Stainless Steel Tube that inner barrel extends with interior heat exchanger head, the layout and the leaking heat that reduces the axially mounting piece that help the axially mounting piece, the inner ring of glass steel disk contacts with steel pipe on the outer heat exchanger head, make any radial force level unanimity, improved the reliability of this structure stress, and insulative properties is fine, the radially heat transfer surface of inner bag and shell only is the internal support stress surface, be radiative heat transfer on remaining cylndrical surface, avoid the spacing between the inside and outside end socket of leaking heat of the related tank body radial support of model utility ZL00249960.6 and ZL01272605.2 little fully, improved charging ratio.Select suitable glass fibre reinforced plastics supporting disk material, by finite element analysis and verification experimental verification, make the Internal and external cycle contact gap have self-adjusting ability, tank body when changing to low temperature from normal temperature, this radial support dish Internal and external cycle contact gap changes very little, improve impact resistance radially greatly, and be beneficial to assembling and gap control under the normal temperature.Simultaneously, this invention has made full use of the characteristic of the big and thermal contact resistance of the ratio of this glass fibre reinforced plastic material compressive strength and thermal conductivity, make the ability of the anti-radial force of supporting big, and it is little to leak heat, has solved in the low-temperature (low temperature) vessel resisting strong impact supporting structure of model utility ZL00216678.X the cold conditions contact gap and has become and be unfavorable for a shock proof difficult problem greatly.Come the length of extension shaft by interior heat exchanger head to the Stainless Steel Tube that inner barrel extends to the glass fibre reinforced plastics briquetting, reduce the leakage heat of axially mounting, solved in the low-temperature (low temperature) vessel resisting strong impact supporting structure of model utility ZL00216678.X the axially uncontrollable problem of supporting leaking heat, guarantee the maximum liquid storage volume in the useful space simultaneously, solved the stressed and heat insulation contradiction of internal support satisfactorily.
Description of drawings
Fig. 1 is a high vacuum multiple layer heat insulation liquefied gas at low temp storage tank schematic representation of the present invention;
Fig. 2 is tank body and inner supporting structure schematic representation.
Among Fig. 1, the 37th, framework, the 38th, tank body; 1 is shell left side end socket among Fig. 2, the 2nd, shell left side end socket stiffening plate, the 3rd, inner bag left side end socket, the 4th, inner bag left side end socket stiffening plate, the 5th, left transition extend neck, the 6th, left stiffening plate, the 7th, tube is strengthened on a left side, the 8th, left stiffening plate, the 9th, left glass fibre reinforced plastics support column, the 10th, left shrouding, the 11st, supporting axle, it can be a stainless steel shaft, the 12nd, locking element, it can be a nut, the 13rd, a left side little end socket that is inverted, the 14th, left radial support dish, 15 is second cushion blocks, 16 first cushion blocks, the 17th, the left radial support retaining ring of facing left, the 18th, the right retaining ring of left radial support dish, the 19th, right radial support dish, the 20th, the right side little end socket that is inverted, the 21st, process duct, the 22nd, the right retaining ring of right radial support dish, the 23rd, the right radial support retaining ring of facing left, the 24th, the right end socket of shell, the 25th, the right end socket stiffening plate of shell, the 26th, the right end socket of inner bag, the 27th, the right end socket stiffening plate of inner bag, the 28th, right transition extend neck, the 29th, right stiffening plate, the 30th, the right tube of strengthening, the 31st, right stiffening plate, the 32nd, right support column, the 33rd, right shrouding, the 34th, interior straight barrel, the 35th, outer straight barrel, the 36th, the shell stiffening ring, the 39th, the high-vacuum insulation layer, the 40th, the multi-lay winding thermoinsulation material.
Embodiment:
Below in conjunction with accompanying drawing concrete enforcement of the present invention is further described.As shown in Figure 1, the present invention includes framework 37 and tank body 38, both weld together according to suitable mode.As shown in Figure 2, tank body comprises shell left side end socket 1, shell left side end socket stiffening plate 2, inner bag left side end socket 3, inner bag left side end socket stiffening plate 4, left side transition extend neck 5, left side stiffening plate 6, tube 7 is strengthened on a left side, left side stiffening plate 8, left side support column 9, left side shrouding 10, stainless steel shaft 11, lock nut 12, the a left side little end socket 13 that is inverted, left side radial support dish 14, second cushion block 15, first cushion block 16, the left side radial support retaining ring 17 of facing left, the right retaining ring 18 of left side radial support dish, right radial support dish 19, the right side little end socket 20 that is inverted, process duct 21, the right retaining ring 22 of right radial support dish, the right radial support retaining ring 23 of facing left, the right end socket 24 of shell, the right end socket stiffening plate 25 of shell, the right end socket 26 of inner bag, the right end socket stiffening plate 27 of inner bag, right transition extend neck 28, right stiffening plate 29, the right tube 30 of strengthening, right stiffening plate 31, right support column 32, right shrouding 33, interior straight barrel 34, outer straight barrel 35, shell stiffening ring 36, high-vacuum insulation layer 39 and multi-lay winding thermoinsulation material 40.
Shell left side end socket 1, shell left side end socket stiffening plate 2, left stiffening plate 6, left side reinforcement tube 7, left stiffening plate 8 and left support column 9 are welded to each other and form the outer heat exchanger head in a left side together.
Be inverted little end socket 13, the right retaining ring 18 of left radial support dish and stainless steel shaft 11 of inner bag left side end socket 3, left transition extend neck 5, inner bag left side end socket stiffening plate 4, a left side is welded to each other and forms the interior heat exchanger head in a left side together.
The right end socket 24 of shell, the right end socket stiffening plate 25 of shell, right stiffening plate 29, right reinforcement tube 30, right stiffening plate 31 and right support column 32 are welded to each other and form right outer heat exchanger head together.
The right end socket 26 of inner bag, right transition extend neck 28, the right side little end socket 20, horizontal mounting process pipe 21, the right radial support retaining ring 23 of facing left that is inverted is welded to each other with the right end socket stiffening plate 27 of inner bag and forms right interior heat exchanger head together.
Right outer heat exchanger head 24 and the outer direct tube section 35 outer cylinder body combination section that is welded.Heat exchanger head, right interior heat exchanger head and interior direct tube section 34 are welded to each other and form inner bag together in the left side.The inner bag outer surface twines multilayer insulant 40.In installation process, at first, right radial support dish 19 is put into inner bag, put into the right retaining ring 22 of right radial support dish again, compress the inner ring of the right retaining ring 22 of right radial support dish with special tooling, right transition extend neck 28 welded corner joints on right retaining ring 22 of right radial support dish and the inner bag, the outer cylinder body combination section is inserted in the right radial support dish 19.Secondly, left radial support dish 14 is put into inner bag, put into the left radial support retaining ring 17 of facing left again, compress the face left inner ring of retaining ring 17 of left radial support with special tooling, left transition extend neck 5 welded corner joints on retaining ring 17 and the inner bag of facing left of left side radial support, second cushion block 15 is put on the inner bag stainless steel supporting axle 11, at last heat exchanger head outside the left side is inserted in the left radial support dish 14, left end socket 1 and the welding of outer cylinder body combination section on the outer heat exchanger head in a left side.First cushion block 16 is put into left support column 9, is tightened onto with lock nut 12 and compresses first cushion block 16 and second cushion block 15 on the inner bag stainless steel supporting axle 11, and lock nut 12 and 11 welded corner joints of stainless steel supporting axle realize the installation of combination support.At last, left shrouding 10 and left stiffening plate 6 welded corner joints and right stiffening plate 29 and right shrouding 33 welded corner joints form tank body.Pumping high vacuum forms high-vacuum insulation layer 39 between shell and the inner bag.Shell stiffening ring 36 is welded in outer surface of outer cover.
Certainly, be understandable that technician well known in the art can make any change or distortion on the basis of technical solution of the present invention, and they all should belong to the scope of claims of the present invention.

Claims (12)

1, a kind of high-vacuum insulation liquefied gas at low temp storage tank, comprise framework and tank body, described tank body is by shell, inner bag, the supporting structure of the high-vacuum insulation layer between shell and the inner bag and connection shell and inner bag is formed, described shell and inner bag comprise direct tube section and end socket, it is characterized in that: described supporting structure is for only being arranged on shell end socket and the bearing radial force between the liner end enclosure and the combination supporting structure of axial force of tank body end, and described liner end enclosure central part caves inward and forms the little end socket that is inverted, and the end socket cambered surface of the cambered surface of described little end socket and described shell is reverse.
2, storage tank according to claim 1 is characterized in that, the shell of described storage tank and the spacing between the inner bag are not more than 50 millimeters.
3, storage tank according to claim 1 and 2 is characterized in that, described supporting structure is provided with
One supporting disk, it contacts with the described little end socket that is inverted;
Two retaining rings are used to keep described supporting disk, and described retaining ring is distributed in the both sides of described supporting disk, described supporting disk and be inverted and be provided with self-adjustable contact gap between the little end socket.
4. according to the storage tank of claim 3, it is characterized in that: at described liner end enclosure be inverted and be provided with a transition extend neck between the little end socket, described supporting structure is arranged in the described transition extend neck.
5. storage tank according to claim 3 is characterized in that, comprises that also one is arranged between shell end socket and the liner end enclosure and passes the axially mounting device of the center hole of described supporting disk, and described axially mounting device comprises:
One support column fixes with described shell end socket inboard, and the support column inwall is provided with a jut;
One supporting axle fixes with the described little end socket that is inverted, and passes described jut and stretches in the described support column;
One locking element is arranged on the end of described supporting axle; And
First cushion block is locked between described locking element and the jut;
Second cushion block is locked between the jut of described be inverted little end socket and this support column.
6. storage tank according to claim 5 is characterized in that, the spacing that is used to transmit the liner end enclosure of supported end of thrust load and shell end socket in the described supporting structure depends on the pipe fluid-tight of defeated discharge opeing body and gas and expands with heat and contract with cold and compensates required spacing.
7, storage tank according to claim 5 is characterized in that, comprises that also one is fixed on the reinforcement tube in the shell end socket, and described reinforcement tube is arranged on the outside of support column.
8, storage tank according to claim 7 is characterized in that, also is provided with a stiffening plate between described reinforcement tube and support column.
According to the described storage tank of claim 5, it is characterized in that 9, wherein inner bag little end socket that is inverted is provided with the horizontal techniques pipe that matches with described support column, the guide-localization when installing or vertically installing with the realization level.
10. according to the described storage tank of claim 1, it is characterized in that, also be provided with stiffening plate in described shell and the liner end enclosure.
11. according to the described storage tank of claim 1, it is characterized in that: described combination supporting structure adopts stress performance good and the little glass fibre reinforced plastics of thermal conductivity bears and transmit various power and cut off the transmission of heat, and utilizes thermal contact resistance further to reduce hot transmission.
12. storage tank according to claim 1 and 2 is characterized in that, is provided with stiffening ring in the outside of described shell.
CNB2004100090131A 2004-04-15 2004-04-15 High vacuum heat insulation low temperature liquefied gas storage tank Expired - Lifetime CN1333198C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CNB2004100090131A CN1333198C (en) 2004-04-15 2004-04-15 High vacuum heat insulation low temperature liquefied gas storage tank
DE112005000873T DE112005000873T5 (en) 2004-04-15 2005-04-05 Vacuum super-insulated tank for cryogenic liquefied gas
PCT/CN2005/000447 WO2005100210A1 (en) 2004-04-15 2005-04-05 Super-vacuum insulation tank for cryogenic liquefied gas

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CNB2004100090131A CN1333198C (en) 2004-04-15 2004-04-15 High vacuum heat insulation low temperature liquefied gas storage tank

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CN1333198C true CN1333198C (en) 2007-08-22

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