CN108861170A - Bivalve cryogenic tank inner canister anti-seismic structure - Google Patents
Bivalve cryogenic tank inner canister anti-seismic structure Download PDFInfo
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- CN108861170A CN108861170A CN201710344218.2A CN201710344218A CN108861170A CN 108861170 A CN108861170 A CN 108861170A CN 201710344218 A CN201710344218 A CN 201710344218A CN 108861170 A CN108861170 A CN 108861170A
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- Prior art keywords
- inner canister
- anchor band
- bivalve
- anchor
- seismic structure
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Classifications
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- 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
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
-
- 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
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/08—Interconnections of wall parts; Sealing means therefor
-
- 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
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention provides a kind of bivalve cryogenic tank inner canister anti-seismic structures, including：Anchor band case, is arranged in cushion cap foundation, and top is exposed to the upper surface of cushion cap foundation, and passes through outer tank bottom and outer tank bottom sealing welding；Lid is exposed to the lower surface of cushion cap foundation, seals bottom end of the anchor with case；Anchor band, lower end pass through anchor band case and connect with lid, and upper end is flexibly connected interior tank skin.Anchor band of the invention passes through the anchor in concrete bearing platform basis with connecting after case with exposed lid, anchor band is not contacted with anchor band case, not with outer tank contacts baseplate, the cooling capacity for avoiding low temperature inner canister is conducted to outer tank and the problem of cushion cap foundation leads to outer tank and cushion cap foundation low temperature damage；Anchor band external tank bottom when earthquake is avoided to generate tensile force destruction；Anchor band upper end be flexibly connected in tank skin, can be avoided the internal tank skin of anchor band and generate additional pulling force, when earthquake fixed low temperature inner canister, the seismic force of tank body is directly passed to pressure-bearing platform, avoids low temperature inner canister from generating lift-off in earthquake and destroys.
Description
Technical field
The present invention relates to petroleum and field of chemical equipment, more particularly, to a kind of bivalve cryogenic tank inner canister antidetonation knot
Structure.
Background technique
In the low-temperature storage tank of the bivalves such as LNG, propane, propylene, ethylene, liquefied ammonia, in earthquake protection area, when to avoid earthquake
The lift-off power that inner canister generates, in engineering usually between outer pot bottom cushion cap foundation and foundation pile plus the mode of resilient cushion, without
Using the traditional method of similar outer tank setting anchor band, i.e., by anchor tape welding on interior tank skin, anchor band lower end is embedded to or passes through cushion cap base
Plinth.Because the tradition outer tank adds the structure of anchor band, very big destruction can be generated to inner canister, leads to security risk.Main harm：One
It is anchor band when passing through outer tank bottom, since it is desired that inflammable and explosive medium in closed outer tank, anchor band and outer the tank bottom place of passing through need
It welds.But cooling capacity passes to outer tank bottom and outer tank base after welded structure necessarily contacts anchor band with inner canister, and outer tank is then
Expensive low-temperature steel plate must be used, and anchor band is embedded to or passes through at basis, because low temperature causes many places basis that may freeze
It bursts bad.A large amount of anchor band setting also results in a large amount of loss of refrigeration capacity of cryogenic tank ontology, causes on entire cryogenic tank systematic economy
Massive losses.Second harm is then that anchor band one end and outer tank bottom weld, and other end and interior tank skin weld, when earthquake,
Inner canister lift-off, anchor band are fixed inner canister, and suffered pulling force certainly will pass to the weld of anchor band Yu outer tank bottom, and produce on interior tank skin
Raw very big local stress makes this have the danger of destruction at two, so that inner cryogenic medium be caused to leak, leads to secondary hazards.
Using adding the way of resilient cushion no doubt feasible, but resilient cushion is expensive, and many resilient cushions non-earthquake only after mounting
It is destroyed, in the 20-25 domestic demand periodic replacement that future is on active service, replaces very troublesome.
Summary of the invention
In view of the problems in the background art, the purpose of the present invention is to provide a kind of bivalve cryogenic tank inner canister antidetonations
Structure can be such that low temperature inner canister had not only been fixed in earthquake, but also prevent dielectric leakage in outer tank, while avoid low temperature inner canister
Adverse effect of the cooling capacity to outer tank and cushion cap foundation.
To achieve the goals above, the present invention provides a kind of bivalve cryogenic tank inner canister anti-seismic structure comprising：Anchor band
Case is arranged in cushion cap foundation, and top is exposed to the upper surface of cushion cap foundation, and passes through outer tank bottom and outer tank bottom sealing welding
It connects；Lid is exposed to the lower surface of cushion cap foundation, seals bottom end of the anchor with case；And anchor band, lower end pass through anchor band case with
Lid connection, upper end are flexibly connected interior tank skin.
Further, the upper end of anchor band is flexibly connected interior tank skin by telescopic mechanism, and telescopic mechanism includes：Clamp,
It is welded with interior tank skin, anchor band passes through the gap of clamp and interior tank skin；And there is interval between limit plate, with clamp, thickness is big
In the gap, with the anchor welding for passing through clamp, when inner canister lift-off, limit plate and clamp are fastened.
Further, the bivalve cryogenic tank inner canister further includes with anti-seismic structure：Cold insulation material is filled in anchor band case,
Cooling capacity for reducing anchor band radiates.
Further, cold insulation material is expanded pearlite sand, is filled in anchor band case.
Further, the bivalve cryogenic tank inner canister further includes with anti-seismic structure：Cooling mechanism is arranged on lid.
Further, cooling mechanism is cooling fin, is welded on lid.
Further, the bivalve cryogenic tank inner canister further includes with anti-seismic structure：Upper cover plate, anchor band case and outer tank bottom are logical
Cross the upper cover plate sealing welding.
Further, anchor band case includes：Square box；Pole is welded on square box, with the coagulation in cushion cap foundation
Native reinforcement welding；Square flange, is welded with square box, and lid is welded in square flange；And reinforcing rib, it is set to square box
The weld of body and square flange.
Further, the plate thickness of square box is 4-6mm, selects pressure vessel low-temperature steel plate 16MnDR or 9%Ni.
Further, pole uses low temperature resistant rod iron.
Beneficial effects of the present invention are as follows：
In cryogenic tank inner canister anti-seismic structure in bivalve according to the present invention, anchor band, which passes through, is embedded in concrete bearing platform basis
In anchor with being connect after case with exposed lid, anchor band is not contacted with anchor band case, not with outer tank contacts baseplate, the structure have with
Lower beneficial effect：First, after anchor band is contacted with low temperature inner canister, the cooling capacity for avoiding low temperature inner canister is directly transferred to anchor by anchor band
Band case and outer tank bottom, to avoid the problem that the cooling capacity of low temperature inner canister is conducted to outer tank and leads to outer tank low temperature damage；Second, it keeps away
Exempt from the external tank bottom of anchor band when earthquake and generate tensile force destruction, avoids the medium inside outer tank and leak；Third avoids anchor band will
The cooling capacity of low temperature inner canister is conducted to the problem of cushion cap foundation leads to cushion cap foundation low temperature damage；4th, the upper end activity of anchor band connects
Interior tank skin is connect, the internal tank skin of anchor band is can be avoided and generates additional pulling force, and when earthquake, low temperature inner canister can be also fixed, by tank
The seismic force of body is directly passed to pressure-bearing platform, and low temperature inner canister is avoided to generate lift-off destruction in earthquake.
The antidetonation that the present invention can be used for various cryogenic tank inner canisters is fixed, and structure is simple, and sealing effect is good, economical and practical,
Guarantee the safety of low temperature inner canister.
Other features and advantages of the present invention will then part of the detailed description can be specified.
Detailed description of the invention
Exemplary embodiment of the invention is described in more detail in conjunction with the accompanying drawings, it is of the invention above-mentioned and its
Its purpose, feature and advantage will be apparent, wherein in exemplary embodiment of the invention, identical reference label
Typically represent same parts.
Fig. 1 shows the schematic diagram of bivalve cryogenic tank inner canister anti-seismic structure of the invention.
Fig. 2 shows schematic diagram of the anchor with case of bivalve cryogenic tank inner canister anti-seismic structure.
Fig. 3 shows in Fig. 2 A of the anchor with case to schematic diagram.
Fig. 4 shows the partial enlarged view of node I of the anchor with case in Fig. 2.
Fig. 5 shows the connection schematic diagram of bivalve cryogenic tank inner canister anti-seismic structure of the invention.
Fig. 6 shows the B of Fig. 5 to schematic diagram.
Fig. 7 shows the schematic diagram of clamp and limit plate of the present invention.
Specific embodiment
The preferred embodiment that the present invention will be described in more detail below with reference to accompanying drawings.Although showing the present invention in attached drawing
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the present invention without the embodiment party that should be illustrated here
Formula is limited.
Referring to Fig.1, cryogenic tank inner canister in bivalve according to the present invention includes with anti-seismic structure：Anchor band case 5 is arranged in cushion cap base
In plinth 10, top is exposed to the upper surface of cushion cap foundation 10, and passes through outer tank bottom 9 and outer 9 sealing welding of tank bottom；Lid 6,
Lower surface that is fixed and being exposed to cushion cap foundation 10, seals bottom end of the anchor with case 5；And anchor band 3, lower end pass through anchor band case
5 connect with lid 6, and upper end is flexibly connected interior tank skin 11.
In cryogenic tank inner canister anti-seismic structure in bivalve according to the present invention, anchor band 3 passes through and is embedded in concrete bearing platform base
Anchor in plinth 10 with exposed lid 6 with (connection can be welding) is connect after case 5, anchor band 3 is not contacted with anchor band case 5, no
It is contacted with outer tank bottom 9, which has the advantages that：First, after anchor band 3 is contacted with low temperature inner canister 12, avoid low
The cooling capacity of warm inner canister 12 is directly transferred to anchor band case 5 and outer tank bottom 9 by anchor band 3, to avoid the cooling capacity of low temperature inner canister 12
It is conducted to the problem of outer tank 13 leads to 13 low temperature damage of outer tank；Second, avoid the external tank bottom 9 of anchor band 3 when earthquake from generating tearing
Power is destroyed, and is avoided the medium L (low temperature flammable explosive gas) inside outer tank 13 and is leaked；Third avoids anchor band 3 by low temperature inner canister
12 cooling capacity is conducted to the problem of cushion cap foundation 10 leads to 10 low temperature damage of cushion cap foundation；4th, the upper end of anchor band 3 is flexibly connected
Interior tank skin 11 can be avoided anchor band 3 and generate additional pulling force to interior tank skin 11, and when earthquake, can also fix low temperature inner canister 12,
The seismic force of tank body is directly passed to pressure-bearing platform, low temperature inner canister 12 is avoided to generate lift-off destruction in earthquake.
The antidetonation that the present invention can be used for various low temperature inner canisters is fixed, and structure is simple, and sealing effect is good, economical and practical, is protected
Demonstrate,prove the safety of low temperature inner canister.
In an embodiment of cryogenic tank inner canister anti-seismic structure in bivalve according to the present invention, referring to Fig.1 and Fig. 7, anchor band 3
Upper end can be flexibly connected by telescopic mechanism in tank skin 11, telescopic mechanism may include：Clamp 2 is welded with interior tank skin 11,
Anchor band 3 passes through the gap of clamp 2 and interior tank skin 11；And there is interval between limit plate 1, with clamp 2, thickness is greater than the sky
Gap is welded with the anchor band 3 for passing through clamp 2, and when low temperature 12 lift-off of inner canister, limit plate 1 and clamp 2 are fastened.As shown in fig. 7, anchor
Upper end with 3 passes through clamp 2 and, with the welding of limit plate 1, hangs on the clamp 2 on interior tank skin 11 behind the gap of interior tank skin 11.By
The shrinkage after low temperature inner canister 12 fills cryogenic media, diameter, which can become smaller, generates horizontal displacement, so limit plate 1 needs between clamp 2
It is spaced apart.Telescopic mechanism enables the upper end free extension of anchor band 3, solve manufacture installation error, the water pressure test,
When normal operating operating condition, anchor band 3 leads to the problem of additional pulling force to interior tank skin 11, and when earthquake, due to low temperature inner canister 12
Lift-off, limit plate 1 and clamp 2 fasten, to have the function that fixed low temperature inner canister 12, prevent the quilt in earthquake of low temperature inner canister 12
It destroys.
In an embodiment of cryogenic tank inner canister anti-seismic structure in bivalve according to the present invention, referring to Fig.1, the bivalve is low
Warm tank inner canister may also include with anti-seismic structure：Cold insulation material 4 is filled in anchor band case 5, and the cooling capacity for reducing anchor band 3 radiates.
The cooling capacity that the setting of cold insulation material 4 further avoids anchor band 3 is transmitted to anchor band case 5 by radiation mode, to reach outer tank bottom
Plate 9 and cushion cap foundation 10.In one embodiment, cold insulation material 4 can be expanded pearlite sand, be filled in anchor band case 5, in loose
State.Anchor band 3 can fix low temperature inner canister 12 when to guarantee cold insulation effect and earthquake, and expanded pearlite sand needs to tamp as required,
It is guaranteed at loose condition (of surface).
In an embodiment of cryogenic tank inner canister anti-seismic structure in bivalve according to the present invention, referring to Fig.1, Fig. 5 and Fig. 6,
The bivalve cryogenic tank inner canister may also include with anti-seismic structure：Cooling mechanism 7 is arranged on lid 6.Cooling mechanism 7 can incite somebody to action
The cooling capacity of anchor band 3 distributes, and prevents anchor band 3 that cooling capacity is transmitted to lid 6 and freezes break basic 10 frost heaves of concrete bearing platform here
It is bad.In one embodiment, cooling mechanism 7 can be cooling fin, be welded on lid 6.The bottom of anchor band 3 because of loss of refrigeration capacity temperature
Rise many parts outside exposing cushion cap foundation 10, the cross-ventilation of 10 lower section of cushion cap foundation is made by cooling fin, is guaranteed
The bottom temp of anchor band 3 is higher than 0 degree, does not freeze.
In an embodiment of cryogenic tank inner canister anti-seismic structure in bivalve according to the present invention, referring to Fig.1, the bivalve is low
Warm tank inner canister may also include with anti-seismic structure：Upper cover plate 8, anchor band case 5 and outer tank bottom 9 pass through 8 sealing welding of upper cover plate.
Side wall and outer tank bottom 9 with upper cover plate 8 and anchor with case 5 weld, and reach sealing function.
In an embodiment of cryogenic tank inner canister anti-seismic structure in bivalve according to the present invention, referring to figs. 1 to Fig. 6, anchor band
Case 5 may include：Square box 50；Pole 52 is welded on square box 50, is welded with the concrete reinforcement in cushion cap foundation,
For fixing square box 50；Square flange 51, is welded with square box 50, and lid 6 is welded in square flange 51；And reinforce
Muscle 53 is set to the weld of square box 50 Yu square flange 51.
Pole 52 is pre-welded to square box 50 according to the reinforcement bar arrangement of the embedded bar in concrete bearing platform basis 10
On.Pole 52 plays the role of fixed square box 50, to make square box 50 in earthquake not because anchor band 3 is transmitted through the power come
It is subjected to displacement.
To ensure in use process, which will not be leaked, and the weld seam of square shaped cabinet 50 does 100%
Non-destructive testing and pressure testing, and interim cover board 54 is manufactured, pressure testing takes 1.2 times of equipment tank design pressure to do air pressure examination
It tests, carries out air seal test, be all embedded into concrete bearing platform basis 10 after qualification, level cement layer construction to low temperature inner canister 12
After interim cover board 54 is cut off, make square box 50 be slightly higher than level cement layer.
In one embodiment, adding for 4 cryogenic materials is uniformly arranged in the weld of square box 50 and square flange 51
Strengthening tendons 53 are reinforced.When reinforcing rib 53 can prevent 52 butt welding of pole on concrete reinforcement and square box 50, by
In position adjustment, installation error, on not, be bent pole 52 by force, misplace by force the square box 50 that may cause with it is rectangular
The problem of 51 weld weld seam of flange ruptures.
In an embodiment of square box 50, corner connection is manufactured after square box 50 can be bent by two pieces of thin plates, bending part
It is excessive using circular arc, after two thin plates roll out fillet, welded corner joint is used at docking.
In one embodiment, it when the insertion of square box 50 square flange 51 welds therewith, is stretched out at 50 docking of square box
Part and square flange 51 bump against, 50 lower part of square box use argon arc welding corner connection.Referring to Fig. 3, the center of square flange 51
It is provided with square hole H identical with the cross-sectional shape of square box 50, square box 50 is inserted into square hole H and is welded.Ginseng
According to Fig. 4, square box 50 and 51 welded corner joint of square flange.
In an embodiment of square box 50, the plate thickness of square box 50 can be 4-6mm, preferably 5mm.
In an embodiment of square box 50, pressure vessel low-temperature steel plate 16MnDR is can be selected in the plate of square box 50
Or 9%Ni.
In an embodiment of pole 52, low temperature resistant rod iron is can be used in pole 52.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.
Claims (10)
1. a kind of bivalve cryogenic tank inner canister anti-seismic structure, which is characterized in that including：
Anchor band case, is arranged in cushion cap foundation, and top is exposed to the upper surface of cushion cap foundation, and passes through outer tank bottom and outer tank bottom
Plate sealing welding；
Lid is exposed to the lower surface of cushion cap foundation, seals bottom end of the anchor with case；And
Anchor band, lower end pass through anchor band case and connect with lid, and upper end is flexibly connected interior tank skin.
2. cryogenic tank inner canister anti-seismic structure in bivalve as described in claim 1, which is characterized in that the upper end of anchor band is by that can stretch
Contracting mechanism is flexibly connected interior tank skin, and telescopic mechanism includes：
Clamp is welded with interior tank skin, and anchor band passes through the gap of clamp and interior tank skin；And
Between limit plate, with clamp have interval, thickness be greater than the gap, with pass through clamp anchor welding, when inner canister mentions
From when, limit plate and clamp fasten.
3. cryogenic tank inner canister anti-seismic structure in bivalve as described in claim 1, which is characterized in that the bivalve cryogenic tank inner canister
Further include with anti-seismic structure：Cold insulation material is filled in anchor band case, and the cooling capacity for reducing anchor band radiates.
4. cryogenic tank inner canister anti-seismic structure in bivalve as claimed in claim 3, which is characterized in that
Cold insulation material is expanded pearlite sand, is filled in anchor band case.
5. cryogenic tank inner canister anti-seismic structure in bivalve as described in claim 1, which is characterized in that the bivalve cryogenic tank inner canister
Further include with anti-seismic structure：Cooling mechanism is arranged on lid.
6. cryogenic tank inner canister anti-seismic structure in bivalve as claimed in claim 5, which is characterized in that
Cooling mechanism is cooling fin, is welded on lid.
7. cryogenic tank inner canister anti-seismic structure in bivalve as described in claim 1, which is characterized in that the bivalve cryogenic tank inner canister
Further include with anti-seismic structure：Upper cover plate, anchor band case and outer tank bottom pass through the upper cover plate sealing welding.
8. cryogenic tank inner canister anti-seismic structure in bivalve as described in claim 1, which is characterized in that anchor band case include：
Square box；
Pole is welded on square box, is welded with the concrete reinforcement in cushion cap foundation；
Square flange, is welded with square box, and lid is welded in square flange；And
Reinforcing rib is set to the weld of square box and square flange.
9. cryogenic tank inner canister anti-seismic structure in bivalve as claimed in claim 8, which is characterized in that the plate thickness of square box
For 4-6mm, pressure vessel low-temperature steel plate 16MnDR or 9%Ni is selected.
10. cryogenic tank inner canister anti-seismic structure in bivalve as claimed in claim 8, which is characterized in that pole uses low temperature resistant steel
Stick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344218.2A CN108861170B (en) | 2017-05-16 | 2017-05-16 | Anti-seismic structure for inner tank of double-shell low-temperature tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344218.2A CN108861170B (en) | 2017-05-16 | 2017-05-16 | Anti-seismic structure for inner tank of double-shell low-temperature tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108861170A true CN108861170A (en) | 2018-11-23 |
| CN108861170B CN108861170B (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710344218.2A Active CN108861170B (en) | 2017-05-16 | 2017-05-16 | Anti-seismic structure for inner tank of double-shell low-temperature tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879561A (en) * | 2021-01-12 | 2021-06-01 | 桂林理工大学 | Support structure suitable for vertical pressure vessel |
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| CN104048157A (en) * | 2013-03-15 | 2014-09-17 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for manufacturing fuel storage tank used for fuel storage system and provided with liner and internal bag |
| CN204534121U (en) * | 2015-04-20 | 2015-08-05 | 张杨 | A kind of low-temperature double-case spherical storage tank |
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| CN2630625Y (en) * | 2003-06-10 | 2004-08-04 | 河南中原绿能高科有限责任公司 | Liquified natural-gas cylinder |
| CN202422902U (en) * | 2012-02-10 | 2012-09-05 | 中国科学院高能物理研究所 | Connection structure for magnet Dewar of superconducting magnetic separator |
| CN104048157A (en) * | 2013-03-15 | 2014-09-17 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for manufacturing fuel storage tank used for fuel storage system and provided with liner and internal bag |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112879561A (en) * | 2021-01-12 | 2021-06-01 | 桂林理工大学 | Support structure suitable for vertical pressure vessel |
| CN112879561B (en) * | 2021-01-12 | 2023-03-10 | 桂林理工大学 | Support structure suitable for vertical pressure vessel |
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| CN108861170B (en) | 2020-03-06 |
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