CN107795845A - Three-layer metal wall contains storage tank entirely - Google Patents
Three-layer metal wall contains storage tank entirely Download PDFInfo
- Publication number
- CN107795845A CN107795845A CN201610802167.9A CN201610802167A CN107795845A CN 107795845 A CN107795845 A CN 107795845A CN 201610802167 A CN201610802167 A CN 201610802167A CN 107795845 A CN107795845 A CN 107795845A
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- Prior art keywords
- tank
- primary
- ceiling board
- entirely
- metal wall
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- 239000002184 metal Substances 0.000 title claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 32
- 239000010410 layer Substances 0.000 claims abstract description 33
- 239000011229 interlayer Substances 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000012774 insulation material Substances 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 13
- 239000000463 material Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 18
- 239000002826 coolant Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006253 efflorescence Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/14—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of aluminium; constructed of non-magnetic steel
-
- 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
- F17C13/06—Closures, e.g. cap, breakable member
-
- 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
- F17C2201/032—Orientation with substantially vertical 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
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0337—Granular
-
- 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
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0636—Metals
- F17C2203/0639—Steels
- F17C2203/0641—Non-magnetic steels
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a kind of three-layer metal wall to contain storage tank, including primary tank, the outer tank for being arranged at primary tank periphery, and the middle tank being arranged at intervals between primary tank and outer tank entirely；Outer tank top is provided with top cover, and ceiling board is connected with below top cover, and the expiration valve pipeline for connecting the primary tank and external environment is equipped with top cover and ceiling board；The top of the middle tank is higher than the top of the primary tank, and the middle tank top uses flexible sealing with the ceiling board, has vertical separation between the primary tank top and the ceiling board；Hollow in sidepiece interlayer between the middle tank and the primary tank, filling cold insulation material forms interlayer heat insulation layer in the sidepiece interlayer between the middle tank and the outer tank.The storage tank of the present invention can avoid cryogenic media from causing low-temperature impact to outer tank, shorten boil-off gas discharge-channel under accident conditions, reduce and material loss is evaporated caused by under accident conditions, improve security.
Description
Technical field
The present invention relates to low temperature, deep cooling medium storage equipment area, more particularly to a kind of three-layer metal wall contains storage tank entirely.
Background technology
Continued to develop in recent years with China's economy, land price is also increasingly soaring, the social contradications day triggered by soil
It is beneficial fierce.Hold formula metal tank with traditional low-temperature atmosphere-pressure list（Hereinafter referred to as metal single appearance tank）Compare, low-temperature atmosphere-pressure contains entirely
Formula metal tank can be with（Hereinafter referred to as metal full appearance tank）Safe cofferdam is saved, effectively reduces floor space, there is higher peace
Quan Xing.In the case where country is increasingly strict to low temperature atmospheric storage equipment security management and control, it is complete to consider prestressed concrete
Hold tank and difference of the metal full appearance tank in terms of cost of investment, metal full appearance tank will obtain more and more middle-size and small-size receiving stations,
The favor of the clients such as liquefaction plant, peak regulation station, market potential are huge.
The exploitation design of China's metal full appearance tank is overall to start late, only several companies completing technology deposit, Shen
Patents technology or please be obtained.Domestic metal full appearance tank can be divided into two types substantially from structural shape：First, double-deck gold
Category wall contains storage tank entirely；2nd, three-layer metal wall contains storage tank entirely.
Double-level-metal wall contains storage tank entirely mainly includes primary tank and in the peripheral secondary container of primary tank, the structure,
Once primary tank leaks, secondary container will directly bear worst cold case, thus produce great thermal (temperature difference) stress.
Three-layer metal wall contains storage tank tank in being added on the basis of double-level-metal wall contains storage tank entirely entirely, and middle tank is set
Between primary tank and outer tank, middle tank is highly less than the height of primary tank.When primary tank leaks, middle tank can contain entirely
Leakage low temperature, the deep cooling medium in portion, can avoid outer tank from directly bearing low temperature.Three-layer metal wall contains storage tank entirely can reduce pair
The requirement of outer tank material at low temperature performance, improve the security that storage tank is overall under accident conditions.
Existing three-layer metal wall contains in storage tank entirely, between the interlayer and middle tank and outer tank between middle tank and primary tank
Interlayer all fill pearlife cold insulation material.However, for pearlife long period of soaking in low temperature, deep cooling medium（Such as LNG）In
The problems such as siphonage in pearlife of caused efflorescence sinking characteristic, LNG, the structure of prior art does not all consider exist
Certain potential safety hazard.In addition, under accident conditions, rear caused superpressure low temperature BOG in tank during low temperature, deep cooling medium enter
Gas（Boil-off gas）The interlayer that can be discharged between primary tank and outer tank, due to closely knit pearlife cold insulation material, outside row be present
Gas is not smooth, easily causes mezzanine space buildup of pressure, and with the increase of leakage rate, it is possible to the pearlife of interlayer is produced to
Under pressure pearlife is sunk, cause top lack cold insulation material and make carbon steel outer tank directly with cryogenic media or BOG gases
Contact causes low temperature injury, influences the security of storage tank.
The content of the invention
It is an object of the invention to provide a kind of three-layer metal wall to contain storage tank entirely, solves the three-layer metal wall of prior art
Full containing storage tank has pearlife sinking and boil-off gas exhaust under accident conditions does not freely cause outer tank to bear low-temperature impact
Problem.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of three-layer metal wall contains storage tank entirely, bag
Include primary tank, be arranged at the outer tank of primary tank periphery, and the middle tank being arranged at intervals between primary tank and outer tank；Outer tank top
Ceiling board is connected with provided with top cover, below top cover, the connection primary tank and external environment are equipped with top cover and ceiling board
Expiration valve pipeline；The top of the middle tank is higher than the top of the primary tank, is adopted between the middle tank top and the ceiling board
With flexible sealing, there is vertical separation between the primary tank top and the ceiling board；The middle tank and the primary tank it
Between sidepiece interlayer in it is hollow, it is adiabatic to form interlayer for filling cold insulation material in sidepiece interlayer between the middle tank and the outer tank
Layer.
Preferably, the top cover is spherical in shape, and its lower surface is provided with network with ribbing；The furred ceiling plate level is hung at institute
State below network with ribbing, the ceiling board is higher than the top of the primary tank, and the edge of the ceiling board exceeds the master
Container simultaneously uses flexible sealing between the middle tank.
Preferably, fill compressibility elastic cotton between the middle tank and the ceiling board and form flexible sealing.
Preferably, the middle tank exceeds the edge of the ceiling board, and the cylinder inner surface of the middle tank top is provided with T-shaped add
Strong circle；The compressibility elasticity is filled in gap between the ceiling board, the middle canister body and the T-shaped stiffening ring
Cotton, form flexible sealing.
Preferably, the link position of the T-shaped stiffening ring and the middle canister body is higher than the top of the primary tank.
Preferably, the sidepiece interlayer between the middle tank and the primary tank is at intervals of 500mm ~ 1000mm.
Preferably, the sidepiece interlayer between the middle tank and the primary tank is at intervals of 800mm.
Preferably, the sidepiece interlayer interval between the middle tank and the outer tank is not less than 1000mm.
Preferably, the cold insulation material of the interlayer heat insulation layer is pearlife, the middle pot sidewall outer surface and the pearly-lustre
Elastic cotton is provided between sand.
As shown from the above technical solution, the advantages and positive effects of the present invention are：In the present invention, middle tank and primary tank it
Between sidepiece mezzanine space in it is hollow, be not filled with pearlife, and middle tank and ceiling board flexible sealing, leakage low temperature can be completely cut off and be situated between
Matter contacts with pearlife, avoids pearlife from being immersed in cryogenic media and efflorescence sinking occurs, because outer tank headspace lacks guarantor
Cold material and cause low-temperature gaseous phase medium directly to contact the problem of causing low temperature to encroach on carbon steel outer tank.Meanwhile liquid can be avoided
State cryogenic media reaches due to producing siphonage in pearlife and causes low temperature to encroach on outer tank at outer tank.In addition, main appearance
Device does not have to bear lateral pressure of the pearlife to its side wall, can be not provided with the bullet for buffering the influence of pearlife lateral compression power
Property cotton, storage tank construction cost can be reduced, but not reduce the security performance of storage tank.Middle tank encloses to form airtight sky with ceiling board
Between, in structure that primary tank is fully wrapped around in wherein, the gas-phase space at both middle tank and primary tank top communicates, in accident work
Under condition, boil-off gas can be entered in the gas-phase space above primary tank caused by the cryogenic media of leakage, and directly through hanging
Expiration valve pipeline on top plate outwards discharges, and effectively shortens the discharge circulation passage of boil-off gas, avoids BOG gases in mezzanine space
Interior aggregation causes superpressure.And boil-off gas is located in the airtight space that middle tank is enclosed with ceiling board, will not leak into outside middle tank,
Avoid causing outer tank low-temperature impact, improve the security under accident conditions.
Brief description of the drawings
Fig. 1 is the tank structure schematic diagram of the preferred embodiment of the present invention.
Fig. 2 is close-up schematic view at A in Fig. 1 of the present invention.
Description of reference numerals is as follows：100th, storage tank；200th, tank foundation；1st, primary tank；2nd, outer tank；3rd, middle tank；4th, top cover；
41st, network with ribbing；42nd, ceiling board；43rd, ceiling board pull bar；45th, expiration valve pipeline；5th, T-shaped stiffening ring；51st, wing plate；52、
Web；6th, compressibility elastic cotton；7th, pearlife；8th, elastic cotton.
Embodiment
Embodying the exemplary embodiment of feature of present invention and advantage will describe in detail in the following description.It should be understood that
The present invention can have various changes in different embodiments, and it is neither departed from the scope of the present invention, and theory therein
Bright and diagram is treated as purposes of discussion in itself, and is not used to the limitation present invention.
The present invention provides a kind of three-layer metal wall and contains storage tank entirely（Hereinafter referred to as storage tank）, for the low temperature such as such as LNG, deep cooling
Medium（Hereinafter referred to as cryogenic media）Normal pressure storage, be mainly used in the engineering projects such as receiving station, liquefaction plant, gas peak regulation
In.
Refering to Fig. 1 and Fig. 2, the storage tank 100 of the present embodiment is located on tank foundation 200.The primary structure of storage tank 100 includes
Primary tank 1, the outer tank 2 for being arranged at the periphery of primary tank 1, and the middle tank 3 being arranged at intervals between primary tank 1 and outer tank 2；Separately
Outside, necessary cold insulation system is additionally provided with storage tank 100.
Primary tank 1 and middle tank 3 are the self-supporting steel storage tank of opened type, the low temperature resistant austenite stainless of its material selection
Steel or 9% nickel steel.
Outer tank 2 is cylindrical shape self-support type steel storage tank, and its material selection can bear storage tank and install extremely minimum ring
The carbon steel or low-alloy steel of border temperature, such as 16MnDR, Q245R, Q345R material.
The structure of primary tank 1, outer tank 2 and middle tank 3 is basically identical, mainly including cylinder, be arranged at the bottom plate of cylinder body bottom,
Usually, cylinder reinforcement is set to strengthen cylinder on cylinder.Cylinder, the structure of bottom plate can refer to prior art.
The top of outer tank 2 is provided with top cover 4.The top cover 4 is spherical in shape, and upward, its lower surface is provided with network 41 with ribbing to arch face,
The network 41 with ribbing includes radial girders and ring beam.Top cover 4 is covered in the top of outer tank 2, outer tank 2 is kept gas in structure
Close property.
The lower section of top cover 4 is connected with ceiling board 42, and specifically, ceiling board 42 is hung at grid with ribbing by ceiling board pull bar 43
The lower section of structure 41, the upper end of ceiling board pull bar 43 and the radial girders of network 41 with ribbing are reliably connected, and ceiling board 42 is horizontal
Set.
In addition, being also equipped with expiration valve pipeline 45 on top cover 4 and ceiling board 42, the upper end of the expiration valve pipeline 45 is extend out to
The top of top cover 4 and be connected with extraneous outlet valve, the lower end of expiration valve pipeline 45 extend out to the lower section of ceiling board 42.Outlet valve pipe
Road 45 is provided with outlet valve, i.e. superpressure safety protective valve（Not shown in figure）.
Ceiling board 42 is located at the top of primary tank 1, but the top of the cylinder of primary tank 1 less than ceiling board 42 and with ceiling board 42
Between there is certain vertical separation, be not connected between primary tank 1 and ceiling board 42.It extend out to the outlet valve of the lower section of ceiling board 42
Pipeline 45 communicates with primary tank 1, so as to which caused boil-off gas under the nominal situation of primary tank 1 is outwardly arranged by outlet valve
Put.
The top of the middle cylinder of tank 3 is higher than the top of the cylinder of primary tank 1, and the middle top of tank 3 uses flexible sealing with ceiling board 42.
Middle tank 3 and ceiling board 42 are in structure by inside the fully wrapped around tank in this 3 of primary tank 1.
Because primary tank 1 is open-top receptacle, and its top is less than middle tank 3 so that the top gas phase of middle tank 3 and primary tank 1
Space communicates completely.Once there is the folder that accident causes the cryogenic media in primary tank 1 to leak between middle tank 3 and primary tank 1
In layer, boil-off gas caused by cryogenic media can enter the top of primary tank 1 along middle tank 3 with the space that the top of primary tank 1 communicates
Scope, can then direct out discharge by expiration valve pipeline 45, curve with the arrow in the circulation path reference picture 2 of boil-off gas
Sign.
As shown in Fig. 2 the edge of ceiling board 42 exceeds the upper end open scope of primary tank 1（That is the cylinder of primary tank 1 is wrapped
The scope enclosed）, and the side wall of middle tank 3（The cylinder of i.e. middle tank 3）Then exceed the edge of ceiling board 42.In the cylinder at the middle top of tank 3
Surface is provided with T-shaped stiffening ring 5, the inner of the T-shaped stiffening ring 5 be located at ceiling board 42 edge and the wall outer surface of primary tank 1 it
Between interval in.Compressibility elastic cotton 6 is filled with gap between ceiling board 42, the cylinder of middle tank 3 and T-shaped stiffening ring 5,
So that form flexible sealing between ceiling board 42 and middle tank 3.
In the present embodiment, the section of T-shaped stiffening ring 5 is T-shaped, including the wing plate 51 being vertically arranged and horizontal connection are in wing plate
The web 52 at 51 middle parts.The side wall inner surfaces of tank 2 in the free end connection of web 52, and the link position is higher than the top of primary tank 1
End；Wing plate 51 has interval towards the side wall of primary tank 1 and between the side wall of primary tank 1.Compressibility elastic cotton 6 is filled in abdomen
In gap between plate 52, wing plate 51, the side wall of middle tank 3 and ceiling board 42.
The cold insulation system of the storage tank 100 is generally arranged on bottom, interlayer and furred ceiling Board position.
Bottom thermal insulation layer is set in the bottom interlayer between middle tank 3 and outer tank 2, prevents the cold of cryogenic media from being passed from bottom
Pass, the structure of bottom thermal insulation layer can refer to prior art.
Ceiling board heat insulation layer is set on ceiling board 42, prevents cold from being transmitted from top, its structure also can refer to prior art.
Filling cold insulation material forms interlayer heat insulation layer in sidepiece interlayer between outer tank 2 and middle tank 3, to completely cut off cold from side
Transmit in portion.More preferably, the cold insulation material is the pearlife 7 of excellent heat insulating performance, in addition, the wall outer surface of middle tank 3 and pearlife 7
Between be additionally provided with elastic cotton 8.When cryogenic media leaks into middle 3 inside of tank, adiabatic, isolation is carried out by the interlayer heat insulation layer
The cold transmission in interlayer direction, avoids outer tank 2 from bearing low temperature, protects low temperature effect of the outer tank 2 not by leaking medium, meanwhile, can
So as to remain in that relatively low evaporation rate in middle tank 3, the loss of storage medium under accident conditions is reduced.For with preferably heat-insulated
Performance, the sidepiece interlayer interval between outer tank 2 and middle tank 3 are not less than 1000mm.
It is hollow in sidepiece interlayer between primary tank 1 and middle tank 3, it is not filled with pearlife, tank 3 during the sidepiece of primary tank 1 utilizes
Outside interlayer heat insulation layer realizes insulation effect.Sidepiece interlayer gap size between primary tank 1 and middle tank 3 need to only guarantee
Normal construction is enough carried out, its scope can be between 500mm ~ 1000mm, and benefit takes 800mm.
The storage tank of the present invention contains the structure of storage tank compared to current three-layer metal wall entirely, at least with advantages below：
1st, in the present invention, the mezzanine space between middle tank 3 and primary tank 1 is not filled with pearlife, and middle tank 3 and ceiling board 42 are flexible
Sealing, it can completely cut off under nominal situation and accident conditions in the mezzanine space during pearlife 7 enters between tank 3 and outer tank 2；
Therefore, in the structure, cryogenic media will not be contacted with pearlife, and pearlife can be avoided to be immersed in cryogenic media under generation
It is heavy, cause top to lack cold insulation material and directly contact the problem of causing cold to impact with low-temperature gaseous phase medium.Meanwhile it can keep away
Exempt from liquid low temperature medium and reach directly to contact with outer tank 2 at outer tank 2 due to siphonage to cause low-temperature impact to outer tank 2.
Under accident conditions, it is possible to reduce the evaporating loss of cryogenic media.
2nd, without pearlife in the space between primary tank 1 and middle tank 3, primary tank 1 does not have to bear pearlife to its side wall
Lateral pressure, and can not have to be provided for the elastic cotton for buffering pearlife pressure influence, storage tank construction cost can be reduced, but
The security performance of storage tank will not be reduced.
3rd, middle tank 3 and ceiling board 42 enclose to form airtight space, in structure that primary tank 1 is fully wrapped around in wherein, in
Both gas-phase spaces at top of tank 3 and primary tank 1 communicate, under accident conditions, boil-off gas caused by the cryogenic media of leakage
It can enter in the gas-phase space of the top of primary tank 1, and directly outwards be discharged through expiration valve pipeline 45, effectively shorten boil-off gas
Discharge circulation passage, avoid air accumulation from causing superpressure.And boil-off gas is located at the airtight sky that middle tank 3 is enclosed with ceiling board 42
In, it will not leak into outside middle tank 3, avoid causing outer tank 2 low-temperature impact, and due to using the structure, even in just
Middle tank 3 is also low-temperature condition under normal operating mode, is leaked once primary tank 1 occurs, will not cause larger thermal (temperature difference) stress, improves accident
Security under operating mode.
Although describing the present invention with reference to several exemplary embodiments, it is to be understood that, term used be explanation and
Exemplary and nonrestrictive term.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or
Essence, it should therefore be appreciated that above-mentioned embodiment is not limited to any foregoing details, and should be limited in appended claims
Widely explained in spirit and scope, thus the whole changes fallen into claim or its equivalent scope and remodeling all should be with
Attached claim is covered.
Claims (9)
1. a kind of three-layer metal wall contains storage tank, including primary tank, the outer tank for being arranged at primary tank periphery entirely, and is arranged at intervals
Middle tank between primary tank and outer tank；Outer tank top is provided with top cover, is connected with ceiling board below top cover, on top cover and ceiling board
It is equipped with the expiration valve pipeline for connecting the primary tank and external environment；It is characterized in that：
The top of the middle tank is higher than the top of the primary tank, using flexible close between the middle tank top and the ceiling board
Envelope, has vertical separation between the primary tank top and the ceiling board；
It is hollow in sidepiece interlayer between the middle tank and the primary tank, the sidepiece interlayer between the middle tank and the outer tank
Interior filling cold insulation material forms interlayer heat insulation layer.
2. three-layer metal wall according to claim 1 contains storage tank entirely, it is characterised in that the top cover is spherical in shape, under it
Surface is provided with network with ribbing；
The furred ceiling plate level is hung at below the network with ribbing, and the ceiling board is higher than the top of the primary tank,
The edge of the ceiling board is beyond the primary tank and flexible sealing is used between the middle tank.
3. three-layer metal wall according to claim 2 contains storage tank entirely, it is characterised in that the middle tank and the ceiling board
Between fill compressibility elastic cotton and form flexible sealing.
4. three-layer metal wall according to claim 3 contains storage tank entirely, it is characterised in that the middle tank exceeds the furred ceiling
The edge of plate, the cylinder inner surface of the middle tank top are provided with T-shaped stiffening ring；The ceiling board, the middle canister body and institute
State and the compressibility elastic cotton is filled in the gap between T-shaped stiffening ring, form flexible sealing.
5. three-layer metal wall according to claim 4 contains storage tank entirely, it is characterised in that the T-shaped stiffening ring with it is described
The link position of middle canister body is higher than the top of the primary tank.
6. the three-layer metal wall according to claim any one of 1-5 contains storage tank entirely, it is characterised in that the middle tank and institute
The sidepiece interlayer between primary tank is stated at intervals of 500mm ~ 1000mm.
7. three-layer metal wall according to claim 6 contains storage tank entirely, it is characterised in that the middle tank and the primary tank
Between sidepiece interlayer at intervals of 800mm.
8. the three-layer metal wall according to claim any one of 1-5 contains storage tank entirely, it is characterised in that the middle tank and institute
The sidepiece interlayer interval stated between outer tank is not less than 1000mm.
9. the three-layer metal wall according to claim any one of 1-5 contains storage tank entirely, it is characterised in that the interlayer is adiabatic
The cold insulation material of layer is pearlife, and elastic cotton is provided between the middle pot sidewall outer surface and the pearlife.
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| CN201610802167.9A CN107795845B (en) | 2016-09-05 | 2016-09-05 | Three-layer metal wall full-containing storage tank |
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| CN201610802167.9A CN107795845B (en) | 2016-09-05 | 2016-09-05 | Three-layer metal wall full-containing storage tank |
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| CN107795845B CN107795845B (en) | 2023-12-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145689A (en) * | 2019-05-31 | 2019-08-20 | 中国空分工程有限公司 | A kind of low-temperature storage tank vault cryogenic piping sleeve cold insulation structure and its installation method |
| CN112963724A (en) * | 2021-04-21 | 2021-06-15 | 成都深冷科技有限公司 | Concrete full-capacity tank |
| CN115504114A (en) * | 2022-10-29 | 2022-12-23 | 中石化中原石油工程设计有限公司 | Sand pulling device and method for suspended ceiling normal-pressure storage tank |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54127022A (en) * | 1978-03-25 | 1979-10-02 | Ishikawajima Harima Heavy Ind Co Ltd | Low-temperature tank |
| JPS54137720A (en) * | 1978-04-18 | 1979-10-25 | Toyo Kanetsu Kk | Low temperature liquid starage tank |
| NL8102665A (en) * | 1980-06-09 | 1982-01-04 | Mc Donnell Douglas Corp | COMPLEX ANGLE SEAL FOR A CRYGENE CONTAINER. |
| JPS58186296U (en) * | 1982-06-04 | 1983-12-10 | 川崎重工業株式会社 | Triple shell cryogenic tank |
| US4426817A (en) * | 1979-09-08 | 1984-01-24 | Dyckerhoff & Widmann Aktiengesellschaft | Double-walled tank for low-temperature liquids |
| US20080302804A1 (en) * | 2007-06-05 | 2008-12-11 | Chicago Bridge & Iron Company | Storage tank for cryogenic liquids |
| EP2320123A1 (en) * | 2009-11-05 | 2011-05-11 | Korea Gas Corporation | Double barrier for liquefied gas storage tank and method of constructing the same |
| KR20120057529A (en) * | 2010-11-26 | 2012-06-05 | 한국가스공사 | Liquefied gas storage tank |
| CN204005202U (en) * | 2014-08-27 | 2014-12-10 | 四川空分设备(集团)有限责任公司 | A kind of LNG tri-wall metals hold tank entirely |
| CN205101860U (en) * | 2015-11-03 | 2016-03-23 | 张家港中集圣达因低温装备有限公司 | Metal contains storage tank entirely with protection of hot angle |
| CN205101853U (en) * | 2015-11-03 | 2016-03-23 | 张家港中集圣达因低温装备有限公司 | Metal holds formula storage tank entirely with inferior container protective layer |
| CN205991324U (en) * | 2016-09-05 | 2017-03-01 | 张家港中集圣达因低温装备有限公司 | Three-layer metal wall contains storage tank entirely |
-
2016
- 2016-09-05 CN CN201610802167.9A patent/CN107795845B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54127022A (en) * | 1978-03-25 | 1979-10-02 | Ishikawajima Harima Heavy Ind Co Ltd | Low-temperature tank |
| JPS54137720A (en) * | 1978-04-18 | 1979-10-25 | Toyo Kanetsu Kk | Low temperature liquid starage tank |
| US4426817A (en) * | 1979-09-08 | 1984-01-24 | Dyckerhoff & Widmann Aktiengesellschaft | Double-walled tank for low-temperature liquids |
| NL8102665A (en) * | 1980-06-09 | 1982-01-04 | Mc Donnell Douglas Corp | COMPLEX ANGLE SEAL FOR A CRYGENE CONTAINER. |
| JPS58186296U (en) * | 1982-06-04 | 1983-12-10 | 川崎重工業株式会社 | Triple shell cryogenic tank |
| US20080302804A1 (en) * | 2007-06-05 | 2008-12-11 | Chicago Bridge & Iron Company | Storage tank for cryogenic liquids |
| EP2320123A1 (en) * | 2009-11-05 | 2011-05-11 | Korea Gas Corporation | Double barrier for liquefied gas storage tank and method of constructing the same |
| KR20120057529A (en) * | 2010-11-26 | 2012-06-05 | 한국가스공사 | Liquefied gas storage tank |
| CN204005202U (en) * | 2014-08-27 | 2014-12-10 | 四川空分设备(集团)有限责任公司 | A kind of LNG tri-wall metals hold tank entirely |
| CN205101860U (en) * | 2015-11-03 | 2016-03-23 | 张家港中集圣达因低温装备有限公司 | Metal contains storage tank entirely with protection of hot angle |
| CN205101853U (en) * | 2015-11-03 | 2016-03-23 | 张家港中集圣达因低温装备有限公司 | Metal holds formula storage tank entirely with inferior container protective layer |
| CN205991324U (en) * | 2016-09-05 | 2017-03-01 | 张家港中集圣达因低温装备有限公司 | Three-layer metal wall contains storage tank entirely |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145689A (en) * | 2019-05-31 | 2019-08-20 | 中国空分工程有限公司 | A kind of low-temperature storage tank vault cryogenic piping sleeve cold insulation structure and its installation method |
| CN110145689B (en) * | 2019-05-31 | 2023-08-22 | 中国空分工程有限公司 | Cold insulation structure of low-temperature storage tank vault low-temperature pipeline sleeve and installation method thereof |
| CN112963724A (en) * | 2021-04-21 | 2021-06-15 | 成都深冷科技有限公司 | Concrete full-capacity tank |
| CN115504114A (en) * | 2022-10-29 | 2022-12-23 | 中石化中原石油工程设计有限公司 | Sand pulling device and method for suspended ceiling normal-pressure storage tank |
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|---|---|
| CN107795845B (en) | 2023-12-22 |
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