CN114017662A - Sealing structure for primary and secondary shielding corrugated terminals of film tank - Google Patents
Sealing structure for primary and secondary shielding corrugated terminals of film tank Download PDFInfo
- Publication number
- CN114017662A CN114017662A CN202111511651.3A CN202111511651A CN114017662A CN 114017662 A CN114017662 A CN 114017662A CN 202111511651 A CN202111511651 A CN 202111511651A CN 114017662 A CN114017662 A CN 114017662A
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- China
- Prior art keywords
- cambered surface
- arc surface
- primary
- straight
- corrugated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 title abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 239000010408 film Substances 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Images
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
- F17C3/00—Vessels not under pressure
-
- 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
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0311—Closure means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a sealing structure for primary and secondary shielding corrugated terminals of a film tank, belonging to the technical field of cryogenic film tanks and comprising straight corrugations, a top cambered surface, a side cambered surface I, a bottom cambered surface I, a steel plate body, a side cambered surface II, a bottom cambered surface II and a bottom cambered surface III; straight ripple, top cambered surface, side cambered surface I, end cambered surface I, side cambered surface II, end cambered surface III and steel sheet body integrated into one piece, top cambered surface, side cambered surface I, end cambered surface I, side cambered surface II, end cambered surface III will be straight ripple and seal on steel sheet body, straight ripple, with the ripple of the main of film jar, secondary shielding buckled plate link to each other. The invention has the advantages of easy molding, reduced molding thinning amount, reduced residual stress, good stress, safer use and realization of convenient sealing of the primary and secondary shielding corrugated terminals of the film tank.
Description
Technical Field
The invention relates to the technical field of cryogenic film tanks, in particular to a sealing structure for primary and secondary shielding corrugated terminals of a film tank.
Background
The refrigerated liquefied gases such as liquefied natural gas and liquid hydrogen become one of the most rapidly developing energy industries in the world due to the advantages of green, environmental protection and high efficiency. Along with the increasing importance of all parties on the application and development of liquefied natural gas and liquid hydrogen, liquefied gases such as liquid nitrogen and liquid helium are also popularized due to inertia of the liquefied gases.
The film type storage tank is firstly applied to the storage of liquefied hydrocarbon liquefied gas, and has the characteristics of high reheating times, easy maintenance and the like because the film type storage tank has high degree of advance, short construction period and low carbon content of used construction materials, thereby being more in line with the low-carbon emission reduction target.
The primary and secondary shields of the film type storage tank are composed of criss-cross corrugated film plates, and the corrugated plates of the primary and secondary shields are closed before crossing and at the shielding terminal due to the manufacturability of the corrugated plates, so that the problem that the primary and secondary shield terminal corrugations are closed is solved in order to ensure that no cracks occur in the forming process, reduce the forming thinning amount, reduce the residual stress at the corrugated crossing position, optimize the stress state of the film plates and facilitate the sealing of the primary and secondary shield terminal corrugations.
Disclosure of Invention
The invention aims to provide a sealing structure for primary and secondary shielding corrugated terminals of a thin film tank, which optimizes the sealing structure of the corrugated terminals, is convenient to form, can solve the problems of forming of the primary and secondary shielding corrugated plates of the thin film tank and the stress level during shielding operation, and improves the safety of the thin film tank.
In order to achieve the purpose, the invention provides the following technical scheme: a closure structure for primary and secondary shielded corrugated terminations of a film can, comprising: the steel plate comprises straight corrugations, a top cambered surface, a side cambered surface I, a bottom cambered surface I, a steel plate body, a side cambered surface II, a bottom cambered surface II and a bottom cambered surface III; straight ripple, top cambered surface, side cambered surface I, end cambered surface I, side cambered surface II, end cambered surface III with steel sheet body integrated into one piece, top cambered surface, side cambered surface I, end cambered surface I, side cambered surface II, end cambered surface III will be straight ripple and seal on steel sheet body, straight ripple, with the ripple of the main of film jar, secondary shielding buckled plate link to each other.
As the improvement of the technical scheme, if the steel plate body is used at the crossed part of the primary shielding corrugation and the secondary shielding corrugation, the straight corrugation, the top cambered surface, the side cambered surface I, the bottom cambered surface I, the side cambered surface II, the bottom cambered surface II and the bottom cambered surface III are integrally formed with the primary shielding corrugation plate and the secondary shielding corrugation plate
As an improvement of the technical scheme, if the structure is used for the ends of the primary and secondary shielding corrugated plates, the straight corrugations are flared and overlapped and sealed with the through corrugations of the primary and secondary shielding plates, and the length of the straight corrugations is 5-10mm longer than the overlapping length.
As the improvement of the above technical scheme, the straight ripple, the top cambered surface, the side cambered surface I, the bottom cambered surface I, the side cambered surface II, the bottom cambered surface III and the steel plate body integrated into one piece, the straight ripple is firstly formed to be consistent with the ripple of the primary and secondary shields, and then flaring is carried out to the corresponding ripple appearance when the terminals of the corrugated plates of the primary and secondary shields are closed, so that the ripple is convenient for inosculation and connection.
As an improvement of the technical scheme, the connecting positions among the straight ripple, the top cambered surface, the side cambered surface I, the bottom cambered surface I, the steel plate body, the side cambered surface II, the bottom cambered surface II and the bottom cambered surface III are directly tangent or tangent through a conical surface and a cylindrical surface, so that the coordination and constraint of surrounding tissues due to deformation during forming are reduced, the stress concentration is reduced, the residual stress is reduced, the forming thinning amount is reduced, the strength of the corrugated plate is fully utilized, and the bearing stress is reduced.
As an improvement of the technical scheme, the number of end waves formed by the straight corrugations, the top cambered surface, the side cambered surface I, the bottom cambered surface I, the side cambered surface II, the bottom cambered surface II and the bottom cambered surface III is more than 2, and the end waves correspond to the closed corrugations.
As an improvement of the technical scheme, the number of the top arc surface, the side arc surface I, the bottom arc surface I (4), the side arc surface II, the bottom arc surface II and the bottom arc surface III is more than 1 respectively, and the radiuses R1, R2, R3 or Rn are variable, but the tangency between the top arc surface, the side arc surface, the bottom arc surface II and the bottom arc surface III and the tangency between the radiuses R1, R2, R3 or Rn and the straight corrugations (1) are guaranteed, so that the residual stress is reduced, the stress of the structure is optimized, and the bearing stress is reduced.
Compared with the prior art, the invention has the following beneficial effects:
1. if the steel plate body is used at the crossed part of the primary and secondary shielding corrugations, the straight corrugations, the top cambered surface, the side cambered surface I, the bottom cambered surface I, the side cambered surface II, the bottom cambered surface II and the bottom cambered surface III are integrally formed with the primary and secondary shielding corrugated plates, so that the prefabricating capacity of the corrugated plates is improved, the construction period of the film tank is shortened, and the construction cost of the film tank is reduced.
2. If the invention is used for the terminals of the primary and secondary shielding corrugated plates, the flaring of the straight corrugation is carried out, and the lap joint sealing is carried out on the through corrugation of the primary and secondary shielding, and the length of the straight corrugation is the lap joint length plus 5-10mm, thus being convenient for the main and secondary shielding corrugated plate terminals.
3. When the straight corrugations, the top cambered surface, the side cambered surface I, the bottom cambered surface I, the side cambered surface II, the bottom cambered surface II and the bottom cambered surface III are integrally formed with the steel plate body, the straight corrugations are firstly formed to be consistent with the corrugations of the primary and secondary shields, and then flaring is carried out to the corresponding corrugated shapes when the terminals of the corrugated plates of the primary and secondary shields are closed, so that the corrugations are conveniently connected in a matched manner.
4. The straight ripple, the top cambered surface, the side cambered surface I, the bottom cambered surface I, the steel plate body, the side cambered surface II, the bottom cambered surface II and the bottom cambered surface III are directly tangent or tangent through the conical surface and the cylindrical surface, so that the coordination and constraint of surrounding tissues caused by deformation during molding are reduced, the stress concentration is reduced, the residual stress is reduced, the molding thinning amount is reduced, the strength of the corrugated plate is fully utilized, and the bearing stress is reduced.
5. The number of end waves formed by the straight ripples, the top cambered surface, the side cambered surface I, the bottom cambered surface I, the side cambered surface II, the bottom cambered surface II and the bottom cambered surface III is 2 or more, and the end waves correspond to the closed ripples.
6. The number of the top cambered surface, the side cambered surface I, the bottom cambered surface I, the side cambered surface II, the bottom cambered surface II and the bottom cambered surface III can be increased, the radiuses R1, R2, R3 or Rn can be changed, but tangency between the top cambered surface, the side cambered surface I, the bottom cambered surface I, the side cambered surface II, the bottom cambered surface II and the bottom cambered surface III with each other and the straight corrugations is guaranteed, so that residual stress is reduced, stress of the structure is optimized, and bearing stress is reduced.
Drawings
FIG. 1 is an isometric right-angled view of a three-dimensional view of a closure structure for primary and secondary shielded corrugated terminations for a membrane tank of the present invention;
FIG. 2 is an isometric left oblique view of a three dimensional view of a closure structure for primary and secondary shielded corrugated terminations for a thin film can of the present invention;
FIG. 3 is a front view of a two-dimensional view of the closure structure for the primary and secondary shielded corrugated terminations of the film can of the present invention;
FIG. 4 is a right side view of a two-dimensional view of a closure structure for primary and secondary shielded corrugated terminations of a film can according to the present invention
Wherein: 1. straight corrugation; 2. a top cambered surface; 3. a side arc surface I; 4. a bottom arc surface I; 5. a steel plate body; 6. a side arc surface II; 7. a bottom arc surface II; 8. and a bottom arc surface III.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-4, the invention provides a sealing structure for primary and secondary shielding corrugated terminals of a film tank, which comprises a straight corrugation 1, a top cambered surface 2, a side cambered surface I3, a bottom cambered surface I4, a steel plate body 5, a side cambered surface II 6, a bottom cambered surface II 7 and a bottom cambered surface III 8; straight ripple 1, top cambered surface 2, side cambered surface I3, end cambered surface I4, side cambered surface II 6, end cambered surface II 7, end cambered surface III8 and 5 integrated into one piece of steel sheet body, top cambered surface 2, side cambered surface I3, end cambered surface I4, side cambered surface II 6, end cambered surface II 7, end cambered surface III8 seal straight ripple 1 on steel sheet body 5, straight ripple, with the ripple of the main of film tank, secondary shielding buckled plate link to each other. The invention has the advantages of easy molding, reduced molding thinning amount, reduced residual stress, good stress, safer use and realization of convenient sealing of the primary and secondary shielding corrugated terminals of the film tank.
If the steel plate body 5 is used for the crossed parts of the primary and secondary shielding corrugations, the straight corrugations 1, the top cambered surface 2, the side cambered surfaces I3, the bottom cambered surfaces I4, the side cambered surfaces II 6, the bottom cambered surfaces II 7 and the bottom cambered surfaces III (8) are integrally formed with the primary and secondary shielding corrugated plates.
If the sealing structure for the primary and secondary shielding corrugated end of the film tank is used for the primary and secondary shielding corrugated plate end, the straight corrugations 1 are flared and overlapped and sealed with the primary and secondary shielding through corrugations, and the length of the straight corrugations 1 is 5-10mm longer than the overlapping length.
Straight ripple 1, top cambered surface 2, side cambered surface I3, end cambered surface I4, side cambered surface II 6, end cambered surface II 7, end cambered surface III8 and steel sheet body 5 integrated into one piece during, straight ripple 1 is formed earlier to unanimous with the ripple of main, secondary shielding, treat that flaring to corresponding ripple appearance again when closing main, secondary shielding's buckled plate terminal.
The straight ripple 1, the top arc surface 2, the side arc surface I3, the bottom arc surface I4, the steel plate body 5, the side arc surface II 6, the bottom arc surface II 7 and the bottom arc surface III8 are connected with each other and are directly tangent or tangent through a conical surface and a cylindrical surface.
The number of end waves formed by the straight ripples 1, the top arc surface 2, the side arc surface I3, the bottom arc surface I4, the side arc surface II 6, the bottom arc surface II 7 and the bottom arc surface III8 is 2 or more.
The number of the top arc surface 2, the side arc surface I3, the bottom arc surface I4, the side arc surface II 6, the bottom arc surface II 7 and the bottom arc surface III8 can be increased, the radiuses R1, R2 and R3 or the radiuses Rn of more arc surfaces can be changed, and n is larger than or equal to 4, but the tangency between the top arc surface and the straight corrugation 1 is ensured.
The basic principles and essential features of the invention shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A closure structure for primary and secondary shielded corrugated terminations of a film can, comprising: the steel plate comprises straight corrugations (1), a top arc surface (2), side arc surfaces I (3), a bottom arc surface I (4), a steel plate body (5), side arc surfaces II (6), a bottom arc surface II (7) and a bottom arc surface III (8); straight ripple (1), top cambered surface (2), side cambered surface I (3), end cambered surface I (4), side cambered surface II (6), end cambered surface II (7), end cambered surface III (8) and steel sheet body (5) integrated into one piece, top cambered surface (2), side cambered surface I (3), end cambered surface I (4), side cambered surface II (6), end cambered surface II (7), end cambered surface III (8) will be straight ripple (1) and seal on steel sheet body (5), straight ripple (1), with the ripple of the main, secondary shielding buckled plate of thin film jar link to each other.
2. A closure structure for primary and secondary shielded corrugated terminations for a membrane tank as claimed in claim 1, wherein: straight ripple (1), top cambered surface (2), side cambered surface I (3), end cambered surface I (4), side cambered surface II (6), end cambered surface II (7), end cambered surface III (8) and main, secondary shielding buckled plate integrated into one piece.
3. A closure structure for primary and secondary shielded corrugated terminations for a membrane tank as claimed in claim 1, wherein: the flaring of the straight corrugation (1) is overlapped and sealed with the through corrugation of the primary shield and the secondary shield, and the length of the straight corrugation (1) is 5-10mm longer than the overlapping length.
4. A closure structure for primary and secondary shielded corrugated terminations for a membrane tank as claimed in claim 1, wherein: the steel plate is characterized in that the connecting positions among the straight corrugations (1), the top arc surface (2), the side arc surface I (3), the bottom arc surface I (4), the steel plate body (5), the side arc surface II (6), the bottom arc surface II (7) and the bottom arc surface III (8) are directly tangent or tangent through a conical surface and a cylindrical surface.
5. A closure structure for primary and secondary shielded corrugated terminations for a membrane tank as claimed in claim 1, wherein: the number of end waves formed by the straight corrugations (1), the top arc surface (2), the side arc surface I (3), the bottom arc surface I (4), the side arc surface II (6), the bottom arc surface II (7) and the bottom arc surface III (8) is 2 or more.
6. A closure structure for primary and secondary shielded corrugated terminations for a membrane tank as claimed in claim 1, wherein: the number of the top arc surface (2), the side arc surface I (3), the bottom arc surface I (4), the side arc surface II (6), the bottom arc surface II (7) and the bottom arc surface III (8) is more than 1 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511651.3A CN114017662A (en) | 2021-12-06 | 2021-12-06 | Sealing structure for primary and secondary shielding corrugated terminals of film tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511651.3A CN114017662A (en) | 2021-12-06 | 2021-12-06 | Sealing structure for primary and secondary shielding corrugated terminals of film tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114017662A true CN114017662A (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111511651.3A Pending CN114017662A (en) | 2021-12-06 | 2021-12-06 | Sealing structure for primary and secondary shielding corrugated terminals of film tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114017662A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685492A (en) * | 2024-02-01 | 2024-03-12 | 沪东中华造船(集团)有限公司 | Sealing film unit for liquefied gas insulating storage tank, sealing film, processing method and storage tank |
-
2021
- 2021-12-06 CN CN202111511651.3A patent/CN114017662A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685492A (en) * | 2024-02-01 | 2024-03-12 | 沪东中华造船(集团)有限公司 | Sealing film unit for liquefied gas insulating storage tank, sealing film, processing method and storage tank |
| CN117685492B (en) * | 2024-02-01 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Sealing film unit for liquefied gas insulating storage tank, sealing film, processing method and storage tank |
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Address after: 7th Floor, Pujiang International Financial Plaza, No. 1158 Dongdaming Road, Hongkou District, Shanghai, 200082 Applicant after: Zhongtai Energy Technology (Shanghai) Co.,Ltd. Address before: 200137 1715, block B, South Building, No. 515, Qifan Road, Pudong New Area, Shanghai Applicant before: China Pacific Maritime Technology (Shanghai) Co.,Ltd. |
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Effective date of registration: 20240111 Address after: 7th Floor, Pujiang International Financial Plaza, No. 1158 Dongdaming Road, Hongkou District, Shanghai, 200082 Applicant after: Zhongtai Energy Technology (Shanghai) Co.,Ltd. Applicant after: SINOPEC ENGINEERING Inc. Address before: 7th Floor, Pujiang International Financial Plaza, No. 1158 Dongdaming Road, Hongkou District, Shanghai, 200082 Applicant before: Zhongtai Energy Technology (Shanghai) Co.,Ltd. |
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