CN108061242A - A kind of air hermetic whole concrete LNG full-capacity tanks - Google Patents
A kind of air hermetic whole concrete LNG full-capacity tanks Download PDFInfo
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- CN108061242A CN108061242A CN201810058715.0A CN201810058715A CN108061242A CN 108061242 A CN108061242 A CN 108061242A CN 201810058715 A CN201810058715 A CN 201810058715A CN 108061242 A CN108061242 A CN 108061242A
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- inner canister
- cold insulation
- outer tank
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- 239000004567 concrete Substances 0.000 title claims abstract description 167
- 238000009413 insulation Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims abstract description 10
- 210000002435 tendon Anatomy 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000001727 in vivo Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 3
- 239000011494 foam glass Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 2
- 239000003949 liquefied natural gas Substances 0.000 description 30
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000003466 welding Methods 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- 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
- F17C2203/0678—Concrete
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of air hermetic whole concrete LNG full-capacity tanks, including outer tank, cushion cap, dome, inner canister and air hermetic sealing system；Outer tank and inner canister are cylindrical shape prestressed reinforced concrete structure, and outer tank bottom is fixed on cushion cap, and tank bottom cold insulation structure is equipped on the cushion cap inside outer tank；Dome is spherical arc shaped steel tendon concrete structure, is covered on the top of outer tank；Inner canister bottom is fixed on tank bottom cold insulation structure, and top is equipped with tank deck cold insulation structure；Tank skin cold insulation structure is provided in annular space between the inner vessel and the outer vessel, hermetically sealing system is provided in the tank skin cold insulation structure close to inner canister one side.The present invention replaces X7Ni9 steel using structural mechanical property reinforced concrete structure that is stable, cheap, easily gathering materials on the spot, both the bearing capacity of interior jar structure had been greatly improved, a large amount of construction costs are saved again, and the tank tolerance limit system of conventional LNG full-capacity tanks is significantly broken through based on this, significantly improve unit volume efficiency of operation.
Description
Technical field
The present invention relates to a kind of liquefied natural gas (LNG) storage container equipment, specifically on a kind of full coagulation of air hermetic
Native LNG full-capacity tanks belong to LNG transmission ＆ distribution technologies field
Background technology
LNG be conventional gas is cooled under normal pressure by low-temperature liquefaction technique less than -160 DEG C and isolate sulphur,
After the pollution elements such as phosphorus, acquisition using methane as the clean energy resource of chief component.LNG storage states occur for cold service
Great variety, volume compression to 1/600 or so, density are about 480kg/m3Colourless, tasteless and non-corrosive liquid.
In LNG industry chain, secure storage is one of key link.LNG full-capacity tanks are that the core memory in LNG industry chain is set
It applies, investment is big, technology-intensive, security requirement is high.At present, conventional LNG full-capacity tanks agent structure is by outer tank and inner canister two
It is grouped into.Wherein, outer tank is prestressed reinforced concrete structure, has the airtight and liquid-tight performances of LNG, it is ensured that storage tank is normal in low temperature
Safe operation is depressed, and the BOG (boil-off gas) of storage tank is controlled to lose in the range of economical rationality；Inner canister generally use X7Ni9 steel
Plate is welded into the flat cylindrical structure of top end opening, the primary tank loaded as LNG.Circumferential sky is left among outer tank and inner canister
Between, in filling low-thermal conductivity cold insulation material, control the exchange rate of LNG materials and external environment.Storage tank is designing
In building course, it is necessary to which the geological conditions according to place is built carries out analysis calculating, it is ensured that tank structure meets high seismic force
Anti-seismic performance requirement under (SSE safety stoppages in transit earthquake) effect.Particularly with interior jar structure, it is necessary to use and both meet structural mechanics
Performance requirement, and it must is fulfilled for the X7Ni9 plates of welding technique requirement in construction and installation.
Inner canister wall panel thickness requirement is controlled in by conventional LNG full-capacity tanks manufacturing process so that tank be installed with meter be subject to compared with
Big limitation can not greatly improve the operational efficiency of storage tank unit volume.In addition, X7Ni9 steel fancy price and larger
Dosage the construction cost of storage tank is remained high, this constrains the development of LNG industry to a certain extent.
The content of the invention
In view of the above-mentioned problems, the object of the present invention is to provide the gas that a kind of construction cost is low, unit volume efficiency of operation is high
Close formula whole concrete LNG full-capacity tanks.
To achieve the above object, the present invention takes following technical scheme：A kind of air hermetic whole concrete LNG full-capacity tanks,
It is characterized in that, the storage tank includes：Concrete outer tank, the concrete outer tank are cylindrical shape prestressed reinforced concrete structure,
Its bottom is fixed on concrete bearing platform, and is equipped with tank on the concrete bearing platform inside the concrete outer tank
Bottom cold insulation structure；Concrete vault, the concrete vault are spherical arc shaped steel tendon concrete structure, are covered on described mixed
The top of solidifying soil outer tank；Concrete inner canister, the concrete inner canister are mixed for open top and flat cylindrical shape deformed bar
Xtah Crude Clay structure, bottom are fixed on the tank bottom cold insulation structure, and tank deck cold insulation structure is equipped in open top；Tank skin is protected
Air-cooled structure, the tank skin cold insulation structure are arranged in the annular space between the concrete inner canister and concrete outer tank；It is airtight
Formula sealing system, the hermetically sealing system are positioned close to the tank skin cold insulation structure of the concrete inner canister one side
It is interior；Wherein, the vertical and circumferential pipeline that the hermetically sealing system is connected by square crossing forms net structure, described vertical
With circumferential pipeline in right-angled intersection position seal joining, and towards the concrete inner canister one side on the vertical and circumferential pipeline
Compartment of terrain offers multiple ventholes, and the vertical and circumferential pipeline is pierced by the concrete vault work after converging to a header
For nitrogen injection port, by injecting nitrogen into the tank skin cold insulation structure to maintain the micro-positive pressure to the concrete inner canister,
So as to a liquid-tight pressure balanced environment is formed on the outside of the concrete inner canister.
In a preferred embodiment, pre- answer is both provided in the wall of the concrete outer tank and concrete inner canister
Force system, the pre-stress system include being laid in the concrete outer tank and concrete inner canister wall along short transverse interval
More circumferential steel strand wires and circumferentially spaced in vivo more of wall for being laid on the concrete outer tank and concrete inner canister
Vertical steel strand wires, and circumferential and vertical steel strand wires use 1 × 7 standard steel section twisted wire of a diameter of 15.7mm.
In a preferred embodiment, the ratio of height to diameter of the concrete outer tank is 0.4~0.8, thickness of wall body for 0.6~
1.0m, materials for wall is C40 or C50 strength grade concrete, and low temperature resistant reinforcing bar is used on the inside of wall.
In a preferred embodiment, the thickness of wall body of the concrete inner canister is 0.4~0.8m, and materials for wall is
The low temperature resistant concrete of C40 or C50 strength grades, and all using low temperature resistant reinforcing bar in walls concrete.
In a preferred embodiment, the concrete bearing platform is reinforced concrete structure, and material is strong for C40 or C50
Grade concrete is spent, thickness is 0.8~1.5m, and the concrete bearing platform bottom uses on-land type or cast-type pile foundation structure,
And the concrete bearing platform and the bottom of concrete outer tank are affixed by armored concrete.
In a preferred embodiment, the radian of the concrete vault is 0.7~1.0 times of the concrete outer tank
Internal diameter, material are C40 or C50 strength grade concrete, and inside is using H profile steel reticulated shell as the support knot before concrete final set
Structure, and the marginal annular region 8-20m scopes of the concrete vault and the wall of the concrete outer tank linearly cut dome
Radial direction form of arcs；The inner ring center range of the concrete vault then to be arc-shaped, center equal thickness area thickness for 0.3~
0.6m。
In a preferred embodiment, the material of the vertical and circumferential pipeline is stainless steel, described vertical and circumferential
Pipeline spacing is 0.5~2.0m, and the spacing of adjacent two venthole is 0.1~0.5m on the vertical and circumferential pipeline.
In a preferred embodiment, the tank bottom cold insulation structure is using strong HLB600-HLB2400 of anti-pressure ability etc.
The foam glass brick of grade；The tank skin cold insulation structure is wrapped in the ventable elasticity on the outside of the concrete inner canister
Felt and the expanded pearlite rock stratum being filled between the resilient felt and concrete outer tank, and the hermetically sealing system is spread
In the resilient felt；The tank deck cold insulation system use sedimentation compress after for 1.0~1.5m thickness elastic felt material.
In a preferred embodiment, pot bottom is provided with liquid pressure bearing system, the liquid in the concrete
Pressure bearing system is close to pot sidewall and bottom wall in the concrete, height 5-10m, thickness 1.0-2.0mm, and material is stainless
Steel.
The present invention has the following advantages due to taking above technical scheme：1st, the present invention is steady using structural mechanical property
Fixed, cheap, reinforced concrete structure that is easily gathering materials on the spot replaces the X7Ni9 steel of routine LNG full-capacity tanks, both greatly carries
The bearing capacity of jar structure in height, and a large amount of construction costs are saved, calculate through comprehensive assessment, reduce construction cost on year-on-year basis up to 10%
More than, and tank tolerance limit system of conventional LNG full-capacity tanks is significantly broken through based on this, solve conventional LNG full-capacity tanks because of inner canister knot
Structure X7Ni9 material properties can not meet ultra-large volume design requirement and the problem of Units of Limitation volume storage efficiency, significantly improve
Unit volume efficiency of operation；Meanwhile influenced by construction method is different, it can be shortened by neatly adjusting arrangement and method for construction
Completion time of project.2nd, the present invention is provided with pipe network shape leak-tight system in inner canister close to outside, can by the nitrogen for injecting certain pressure
To maintain the micro-positive pressure to inner canister, so as to which side forms a liquid-tight pressure balanced environment in the outer edge of the inner tank, LNG liquid sealing is played
Effect.3rd, the present invention is provided with cold insulation structure in the annular space of interior tank bottom, outer tank and inner canister and interior tank deck, can control
LNG and extraneous exchange rate in tank.In conclusion the present invention from the design concept and tank structure of process control system and
On construction material, LNG full-capacity tanks are carried out comprehensively to be promoted and developed, LNG storage tank design-build technology can be made to obtain significantly
It is promoted, future will play significant economic benefit and social benefit in LNG industry development.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention；
Fig. 2 is the close-up schematic view of corner point of the present invention.
Reference numeral in figure：
1- concrete outer tanks；2- outer tank pre-stress systems；3- tank skin cold insulation structures；4- tank bottom cold insulation structures；5- concrete
Cushion cap；6- concrete vaults；7- tank deck cold insulation structures；8- concrete inner canisters；9- hermetically sealing systems；10- ventholes；11-
Inner canister pre-stress system；12- resilient felts；13- liquid pressure bearing systems；14- nitrogen injection ports；15- expanded pearlites rock stratum.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.It should be appreciated, however, that the offer of attached drawing is only
For a better understanding of the present invention, they should not be interpreted as limitation of the present invention.
As shown in Figure 1 and Figure 2, air hermetic whole concrete LNG full-capacity tanks provided by the invention include concrete outer tank 1, mix
Solidifying soil cushion cap 5, concrete vault 6, concrete inner canister 8 and air hermetic sealing system 9.Wherein, concrete outer tank 1 is pre- for cylindrical shape
Stress reinforced concrete structure, the bottom of concrete outer tank 1 are fixed on concrete bearing platform 5.Concrete vault 6 is spherical arc
Shaped steel tendon concrete structure, concrete vault 6 are covered on the top of concrete outer tank 1.Mixed inside concrete outer tank 1
Tank bottom cold insulation structure 4 is equipped on solidifying soil cushion cap 5, concrete inner canister 8 is open top and flat cylindrical shape deformed bar
Concrete structure, the bottom of concrete inner canister 8 are fixed on tank bottom cold insulation structure 4, and tank deck cold insulation is equipped in open top
Structure 7.Annular space is left between concrete inner canister 8 and concrete outer tank 1, tank skin cold insulation knot is provided in the annular space
Structure 3.Hermetically sealing system 9 is positioned close in the tank skin cold insulation structure 3 of 8 one side of concrete inner canister, hermetically sealing system 9
The vertical and circumferential pipeline connected by square crossing forms net structure, and vertical and circumferential pipeline is closed at right-angled intersection position
It is logical, and on vertical and circumferential pipeline multiple ventholes 10 are offered towards 8 one side compartment of terrain of concrete inner canister.All vertical and rings
It is converged to pipeline after a header and is pierced by concrete vault 6 as nitrogen injection port 14, by being noted into tank skin cold insulation structure 3
Micro-positive pressure to concrete inner canister 8 can be maintained by entering the nitrogen of certain pressure, so as to form a liquid in 8 outside of concrete inner canister
Close pressure balanced environment plays the effect of LNG liquid sealing.
In a preferred embodiment, it is respectively arranged with outer tank in the wall of concrete outer tank 1 and concrete inner canister 8
Pre-stress system 2 and inner canister pre-stress system 11, outer tank pre-stress system 2 and inner canister pre-stress system 11 are included along short transverse
Interval is laid on the in vivo more circumferential steel strand wires of wall of concrete outer tank 1 and concrete inner canister 8 and circumferentially spaced laying
In the in vivo more vertical steel strand wires of the wall of concrete outer tank 1 and concrete inner canister 8, and circumferential and vertical steel strand wires are using straight
Footpath is 1 × 7 standard steel section twisted wire of 15.7mm.Outer tank pre-stress system 2 and inner canister pre-stress system 11 can be concrete outer tank 1
Compressive pre-stress is provided with concrete inner canister 8, is broken caused by resist the tension stress that storage tank concrete generates under seismic force effects
It is bad.
In a preferred embodiment, the ratio of height to diameter of concrete outer tank 1 is 0.4~0.8, thickness of wall body for 0.6~
1.0m, materials for wall is C40 or C50 strength grade concrete, and low temperature resistant reinforcing bar is used on the inside of wall, can bear less than -40 °
Cold service, do not occur cold brittleness destruction.
In a preferred embodiment, the thickness of wall body of concrete inner canister 8 is 0.4~0.8m, materials for wall for C40 or
The low temperature resistant concrete of C50 strength grades, and all using low temperature resistant reinforcing bar in walls concrete can bear less than -162 ° low
Cold brittleness destruction does not occur for temperature effect.
In a preferred embodiment, concrete bearing platform 5 is reinforced concrete structure, and material is C40 or C50 intensity etc.
Grade concrete, thickness are 0.8~1.5m, and 5 bottom of concrete bearing platform uses on-land type or cast-type pile foundation structure, and concrete
Cushion cap 5 and the bottom of concrete outer tank 1 are affixed by armored concrete.
In a preferred embodiment, the radian of concrete vault 6 is 0.7~1.0 times of 1 internal diameter of concrete outer tank,
Material is C40 or C50 strength grade concrete, and inside uses H profile steel reticulated shell as the support construction before concrete final set, and
The marginal annular region 8-20m scopes of concrete vault 6 linearly cut dome radial direction arc line shaped with the wall of concrete outer tank 1
Formula, to improve the connection tensile property of concrete vault 6 and concrete outer tank 1；The inner ring center range of concrete vault 6 is then
Arc-shaped, center equal thickness area thickness is 0.3~0.6m.
In a preferred embodiment, the material of vertical and circumferential pipeline is stainless steel, vertical and circumferential pipeline spacing
For 0.5~2.0m, the vertical spacing with adjacent two venthole 10 on circumferential pipeline is 0.1~0.5m.
In a preferred embodiment, tank bottom cold insulation structure 5 is using the strong HLB600-HLB2400 grades of anti-pressure ability
Foam glass brick；Tank skin cold insulation structure 3 is by being wrapped in the ventable resilient felt 12 in 8 outside of concrete inner canister and being filled in
Expanded pearlite rock stratum 15 between resilient felt 12 and concrete outer tank 1 forms, and hermetically sealing system 9 is layed in resilient felt 12
It is interior；Tank deck cold insulation system 7 use sedimentation compress after for 1.0~1.5m thickness elastic felt material.
In a preferred embodiment, liquid pressure bearing system 13, liquid pressure-bearing system are provided in 8 bottom of concrete inner canister
System 13 is close to 8 side wall of concrete inner canister and bottom wall, and height 5-10m, thickness 1.0-2.0mm, material is stainless steel.Due to
The bottom LNG liquid static pressure of concrete inner canister 8 is larger, and long term, which can be to concrete inner canister 8
Comparatively ideal liquid-tight performance is played in bottom, prevents LNG liquid from being leaked in tank bottom, causes storage tank that leakage occurs and destroys.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection mode and manufacture craft etc. are all
It can be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement should not exclude
Outside protection scope of the present invention.
Claims (9)
1. a kind of air hermetic whole concrete LNG full-capacity tanks, which is characterized in that the storage tank includes：
Concrete outer tank, the concrete outer tank are cylindrical shape prestressed reinforced concrete structure, and concrete is fixed in bottom
On cushion cap, and tank bottom cold insulation structure is equipped on the concrete bearing platform inside the concrete outer tank；
Concrete vault, the concrete vault are spherical arc shaped steel tendon concrete structure, are covered on outside the concrete
The top of tank；
Concrete inner canister, the concrete inner canister be open top and flat cylindrical shape prestressed reinforced concrete structure,
Bottom is fixed on the tank bottom cold insulation structure, and tank deck cold insulation structure is equipped in open top；
Tank skin cold insulation structure, the annular that the tank skin cold insulation structure is arranged between the concrete inner canister and concrete outer tank are empty
In；
Hermetically sealing system, the tank skin that the hermetically sealing system is positioned close to the concrete inner canister one side are protected
In air-cooled structure；
Wherein, the vertical and circumferential pipeline that the hermetically sealing system is connected by square crossing forms net structure, described perpendicular
To with circumferential pipeline in right-angled intersection position seal joining, and towards the concrete inner canister one on described vertical and circumferential pipeline
Side compartment of terrain offers multiple ventholes, and the vertical and circumferential pipeline is pierced by the concrete vault after converging to a header
As nitrogen injection port, by nitrogen is injected into the tank skin cold insulation structure with maintain to the concrete inner canister it is micro- just
Pressure, so as to form a liquid-tight pressure balanced environment on the outside of the concrete inner canister.
2. a kind of air hermetic whole concrete LNG full-capacity tanks as described in claim 1, which is characterized in that in the concrete
Pre-stress system is both provided in the wall of outer tank and concrete inner canister, the pre-stress system includes spreading along short transverse interval
Be located in vivo more circumferential steel strand wires of the concrete outer tank and concrete inner canister wall and it is circumferentially spaced be laid on it is described
The in vivo more vertical steel strand wires of the wall of concrete outer tank and concrete inner canister, and circumferential and vertical steel strand wires are using a diameter of
1 × 7 standard steel section twisted wire of 15.7mm.
3. a kind of air hermetic whole concrete LNG full-capacity tanks as described in claim 1, which is characterized in that outside the concrete
The ratio of height to diameter of tank is 0.4~0.8, and thickness of wall body is 0.6~1.0m, and materials for wall is C40 or C50 strength grade concrete, and
Low temperature resistant reinforcing bar is used on the inside of wall.
4. a kind of air hermetic whole concrete LNG full-capacity tanks as described in claim 1, which is characterized in that in the concrete
The thickness of wall body of tank is 0.4~0.8m, and materials for wall is the low temperature resistant concrete of C40 or C50 strength grades, and in walls concrete
All using low temperature resistant reinforcing bar.
5. a kind of air hermetic whole concrete LNG full-capacity tanks as described in claim 1, which is characterized in that the concrete is held
Platform is reinforced concrete structure, and material is C40 or C50 strength grade concrete, and thickness is 0.8~1.5m, and the concrete is held
Platform bottom uses on-land type or cast-type pile foundation structure, and the concrete bearing platform and the bottom of concrete outer tank pass through reinforcing bar
Concrete is affixed.
A kind of 6. air hermetic whole concrete LNG full-capacity tanks as described in claim 1, which is characterized in that the concrete vault
The radian on top is 0.7~1.0 times of the concrete outer tank internal diameter, and material is C40 or C50 strength grade concrete, on the inside of
Using H profile steel reticulated shell as the support construction before concrete final set, and the marginal annular region 8-20m models of the concrete vault
It encloses and linearly cuts dome radial direction form of arcs with the wall of the concrete outer tank；The inner ring center range of the concrete vault
Then to be arc-shaped, center equal thickness area thickness is 0.3~0.6m.
A kind of 7. air hermetic whole concrete LNG full-capacity tanks as described in claim 1, which is characterized in that the vertical and ring
It is stainless steel to the material of pipeline, the vertical and circumferential pipeline spacing is 0.5~2.0m, phase on the vertical and circumferential pipeline
The spacing of adjacent two ventholes is 0.1~0.5m.
A kind of 8. air hermetic whole concrete LNG full-capacity tanks as described in claim 1, which is characterized in that the tank bottom cold insulation
Structure uses the foam glass brick of the strong HLB600-HLB2400 grades of anti-pressure ability；The tank skin cold insulation structure includes bag
It the ventable resilient felt that is wrapped on the outside of the concrete inner canister and is filled in swollen between the resilient felt and concrete outer tank
Swollen pearl rock stratum, and the hermetically sealing system is layed in the resilient felt；The tank deck cold insulation system is pressed using sedimentation
It is the elastic felt material of 1.0~1.5m thickness after contracting.
9. a kind of air hermetic whole concrete LNG full-capacity tanks as described in claim 1, which is characterized in that in the concrete
Interior pot bottom is provided with liquid pressure bearing system, and the liquid pressure bearing system is close to pot sidewall and bottom wall in the concrete, high
It spends for 5-10m, thickness 1.0-2.0mm, material is stainless steel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058715.0A CN108061242B (en) | 2018-01-22 | 2018-01-22 | Airtight full concrete LNG holds storage tank entirely |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058715.0A CN108061242B (en) | 2018-01-22 | 2018-01-22 | Airtight full concrete LNG holds storage tank entirely |
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| CN108061242A true CN108061242A (en) | 2018-05-22 |
| CN108061242B CN108061242B (en) | 2024-01-30 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237293A (en) * | 2018-10-31 | 2019-01-18 | 中海石油气电集团有限责任公司 | Band liner whole concrete LNG full-capacity tank |
| CN109555968A (en) * | 2018-12-21 | 2019-04-02 | 大连民族大学 | LNG storage tank ultralow temperature leakage device |
| CN110440129A (en) * | 2018-05-03 | 2019-11-12 | 罗圣冰 | The design and manufacture of safety-type super large LNG storage tank |
| CN111256026A (en) * | 2020-03-24 | 2020-06-09 | 中海石油气电集团有限责任公司 | LNG storage tank and inner tank thereof |
| CN112142017A (en) * | 2020-09-30 | 2020-12-29 | 西南石油大学 | Nitrogen preparation device based on pressure swing adsorption separation technology |
| CN113501222A (en) * | 2021-07-20 | 2021-10-15 | 苏州杜尔气体化工装备有限公司 | Liquid ammonia low temperature holds storage tank structure entirely |
| CN114458945A (en) * | 2022-02-23 | 2022-05-10 | 中太(苏州)氢能源科技有限公司 | Large liquid hydrogen full-capacity tank adopting liquid-gas cooling wall |
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| CN115046128A (en) * | 2022-05-30 | 2022-09-13 | 中海石油气电集团有限责任公司 | Spherical liquid hydrogen storage tank |
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| CN109237293A (en) * | 2018-10-31 | 2019-01-18 | 中海石油气电集团有限责任公司 | Band liner whole concrete LNG full-capacity tank |
| CN109555968A (en) * | 2018-12-21 | 2019-04-02 | 大连民族大学 | LNG storage tank ultralow temperature leakage device |
| CN111256026A (en) * | 2020-03-24 | 2020-06-09 | 中海石油气电集团有限责任公司 | LNG storage tank and inner tank thereof |
| CN112142017A (en) * | 2020-09-30 | 2020-12-29 | 西南石油大学 | Nitrogen preparation device based on pressure swing adsorption separation technology |
| CN113501222A (en) * | 2021-07-20 | 2021-10-15 | 苏州杜尔气体化工装备有限公司 | Liquid ammonia low temperature holds storage tank structure entirely |
| CN114458945A (en) * | 2022-02-23 | 2022-05-10 | 中太(苏州)氢能源科技有限公司 | Large liquid hydrogen full-capacity tank adopting liquid-gas cooling wall |
| CN114458945B (en) * | 2022-02-23 | 2024-01-26 | 中太(苏州)氢能源科技有限公司 | Large-sized liquid hydrogen full-capacity tank adopting liquid-gas cooled wall |
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| CN114673925B (en) * | 2022-04-26 | 2024-01-23 | 中太能源科技(上海)有限公司 | A ordinary pressure storage tank for liquid hydrogen stores |
| CN115046128A (en) * | 2022-05-30 | 2022-09-13 | 中海石油气电集团有限责任公司 | Spherical liquid hydrogen storage tank |
| CN116293387A (en) * | 2023-03-01 | 2023-06-23 | 大连理工大学 | Active cold-preserving type inner floating roof spherical liquid hydrogen/liquid nitrogen storage tank |
| CN116293387B (en) * | 2023-03-01 | 2023-11-07 | 大连理工大学 | Active cold-preserving type inner floating roof spherical liquid hydrogen/liquid nitrogen storage tank |
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