CN217208904U - LNG storage tank and bearing structure - Google Patents
LNG storage tank and bearing structure Download PDFInfo
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- CN217208904U CN217208904U CN202220460407.2U CN202220460407U CN217208904U CN 217208904 U CN217208904 U CN 217208904U CN 202220460407 U CN202220460407 U CN 202220460407U CN 217208904 U CN217208904 U CN 217208904U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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Abstract
The utility model provides a LNG storage tank and a supporting structure, which comprises an outer tank and an inner tank, wherein the inner tank is positioned in the outer tank, a sealed cavity is formed between the inner tank and the outer tank, a supporting heat insulation structure is arranged between the inner tank and the outer tank, the supporting heat insulation structure comprises an end positioning ring, the end positioning ring is positioned at the inner side of the outer tank and is close to the end of the inner tank, and the end positioning ring is used for limiting the axial position of the inner tank in the outer tank; the inner wall of the outer tank is fixedly provided with a plurality of stiffening rings along the circumference, the stiffening rings are arranged along the axis, and the inner sides of the stiffening rings are fixedly provided with heat insulation support rings; the inner wall of the inner tank is provided with a heat insulation layer, and the heat insulation support ring is in contact with the heat insulation layer; and the other positions of the sealed cavity are filled with heat insulating materials. By adopting the combined supporting structure of the stiffening ring and the heat insulation supporting ring, balance can be achieved between the supporting effect and the heat insulation effect. The support column of setting can provide higher supporting effect, and can compensate the deformation of inner tank.
Description
Technical Field
The utility model relates to a low temperature overhead tank body preparation field, especially a LNG storage tank and bearing structure.
Background
The LNG storage tank is used for storing low-temperature LNG gas, the working temperature is-162 ℃, the pressure resistance reaches 1Mpa, a double-layer tank body structure is adopted, and a supporting structure needs to be arranged between the inner tank and the outer tank to avoid relative shaking between the inner tank and the outer tank. However, as the temperature rises, LNG vaporizes causing pressure to build up in the LNG tank, and the thermal insulation requirements of the tank also require that the pressure in the LNG tank not cause the safety valve to actuate within a period of time, such as 15 days. And meanwhile, the requirements of a supporting structure and heat insulation are met, so that the processing difficulty of the LNG storage tank is very high. Chinese patent document CN 207421773U describes a foam insulation and mounting structure for a single-shell cryogenic pressure vessel, which has an outer layer structure that is not strong enough to be suitable for use in mobile applications such as on ships. CN 103162085 a describes a self-supporting LNG storage tank, which adopts a concrete outer tank structure and is not easy to move. CN 111256034 a describes an LNG tank container with high thermal insulation, in which a plurality of bracing structures are provided in the tank 2 of the container for supporting. However, the bracing structure may affect the heat insulation effect. CN 211649806U describes a high strength support block inside an LNG tank, which uses a combination of glass fiber reinforced plastic and aerogel to insulate the heat, but this structure does not have the function of compensating the inner tank shrinkage when it is cold. And the support structure also lacks the effect of mutual spacing of the inner vessel and the outer vessel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a LNG storage tank and bearing structure are provided, can have higher adiabatic effect when guaranteeing the supporting effect. In a preferred scheme, the supporting structure can also compensate the deformation of the inner tank, and the safety is improved.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: an LNG storage tank comprises an outer tank and an inner tank, wherein the inner tank is positioned in the outer tank, a sealed cavity is formed between the inner tank and the outer tank, a supporting and heat-insulating structure is arranged between the inner tank and the outer tank and comprises an end positioning ring, the end positioning ring is positioned on the inner side of the outer tank and is close to the end of the inner tank, and the end positioning ring is used for limiting the axial position of the inner tank in the outer tank;
the inner wall of the outer tank is fixedly provided with a plurality of stiffening rings along the circumference, the stiffening rings are arranged along the axis, and the inner sides of the stiffening rings are fixedly provided with heat insulation support rings;
the inner wall of the inner tank is provided with a heat insulation layer, and the heat insulation support ring is in contact with the heat insulation layer;
and the other positions of the sealed cavity are filled with heat insulating materials.
In the preferred scheme, the heat insulating layer is divided into at least two layers, wherein the inner layer is a glass fiber heat insulating layer, and the outer layer is an aluminized film layer;
the material of the heat insulation support ring is rigid foam plastic and/or nano aerogel felt;
the heat insulating material is perlite or nano aerogel felt.
In the preferred scheme, the stiffening ring is made of L-shaped steel, one side of the L-shaped steel is positioned at the inner side, and the stiffening ring is fixedly connected with the heat-insulating support ring through the structure of the side;
the heat insulation support ring is divided into a multi-layer structure along the radial direction, a hard foam plastic layer is close to the L-shaped steel, and a nano aerogel felt layer is far away from the L-shaped steel;
the nano aerogel felt layer is connected with the rigid foam plastic layer through the plastic nails with the barbs.
In the preferred scheme, still be equipped with a plurality of support columns between inner tank and outer jar, including being located a plurality of lower support columns of inner tank bottom position and being located a plurality of upper support columns of inner tank top.
In a preferred scheme, the structure of the lower support column is as follows: one end of the heat insulation column body is fixedly connected with the outer tank, the other end of the heat insulation column body is provided with a sliding base plate, and the sliding base plate is in contact with the heat insulation layer.
In a preferred scheme, the upper support column has the structure that: the outer tank corresponding to the upper support column is provided with an installation opening, the installation opening is fixedly provided with a reinforcing plate plug, the reinforcing plate is connected with the upper cover plate, the inner side of the upper cover plate is connected with one end of the heat insulation column body, and the other end of the heat insulation column body is connected with the sliding base plate or the fixed base plate;
wherein the fixed base plate is provided with a limiting step for limiting the displacement of the heat insulation column body, and the fixed base plate is fixedly connected with the heat insulation layer;
the upper support columns close to the middle or one end of the inner tank are connected with the fixed base plate, and the upper support columns at the other positions are connected with the sliding base plate;
the heat insulation column is filled with a filling body, and the filling body is made of a heat insulation material with a vacuum expansion effect.
In a preferred scheme, the heat insulation column body comprises a heat insulation inner pipe and a heat insulation outer pipe which are sleeved with each other in a sliding mode, a heat insulation cushion layer is arranged between the heat insulation inner pipe and the heat insulation outer pipe, and the cross section of the heat insulation cushion layer is in a Z shape so as to isolate the end faces and the side walls of the heat insulation inner pipe and the heat insulation outer pipe from each other.
A supporting structure for an LNG storage tank is characterized in that a plurality of stiffening rings along the circumference are fixedly arranged on the inner wall of an outer tank, the stiffening rings are arranged along the axis, and a heat insulation supporting ring is fixedly arranged on the inner side of each stiffening ring;
the inner wall of the inner tank is provided with a heat insulation layer, and the heat insulation support ring is in contact with the heat insulation layer;
still be equipped with a plurality of support columns between inner tank and outer jar, including a plurality of lower support columns that are located inner tank bottom position and a plurality of upper support columns that are located the inner tank top.
In a preferred scheme, the upper support column has the structure that: the outer tank corresponding to the upper support column is provided with an installation opening, the installation opening is fixedly provided with a reinforcing plate plug, the reinforcing plate is connected with the upper cover plate, the inner side of the upper cover plate is connected with one end of the heat insulation column body, and the other end of the heat insulation column body is connected with the sliding base plate or the fixed base plate;
wherein the fixed backing plate is provided with a limit step for limiting the displacement of the heat insulation column body, and the fixed backing plate is fixedly connected with the heat insulation layer;
the upper supporting columns close to the middle or one end of the inner tank are connected with the fixed base plate, and the upper supporting columns at other positions are connected with the sliding base plate.
In a preferred embodiment, the heat-insulating column is filled with a filler, and the filler is a heat-insulating material having a vacuum expansion effect.
The utility model provides a pair of LNG storage tank and bearing structure through the combination bearing structure who adopts stiffening ring and adiabatic support ring, can reach the balance between supporting effect and adiabatic effect. The support column of setting can provide higher supporting effect, and can compensate the deformation of inner tank. The structure of the utility model is convenient for installation.
Drawings
The invention will be further described with reference to the following drawings and examples:
fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic cross-sectional view of the present invention.
Fig. 3 is a schematic view of the heat-insulating support ring according to the present invention.
Fig. 4 is a schematic structural view of the sliding upper support column of the present invention.
Fig. 5 is a schematic structural view of the fixed upper support column of the present invention.
Fig. 6 is a schematic diagram of a preferred structure of the heat-insulating column of the present invention.
Fig. 7 is a schematic structural view of the present invention during installation.
Fig. 8 is a schematic structural diagram of the adjustable cushion block of the present invention.
In the figure: outer tank 1, inner tank 2, end holding ring 3, stiffening ring 4, adiabatic support ring 5, sealed chamber 6, heat insulation layer 7, lower support column 8, go up support column 9, stiffening plate 91, upper cover plate 92, adiabatic cylinder 93, adiabatic inner tube 931, adiabatic gasket 932, adiabatic outer tube 933, obturator 94, sliding pad 95, fixed bolster 96, spacing terrace 97, stopper 10, outer tank 100 is not sealed, inner tank 200 is not sealed, support frame 300, adjustable cushion 400.
Detailed Description
Example 1:
as shown in fig. 1 to 3, an LNG storage tank includes an outer tank 1 and an inner tank 2, the inner tank 2 is located in the outer tank 1, a sealed cavity 6 is formed between the inner tank 2 and the outer tank 1, a supporting and heat insulating structure is provided between the inner tank 2 and the outer tank 1, the supporting and heat insulating structure includes an end positioning ring 3, the end positioning ring 3 is preferably made of rigid foam plastic, such as foamed polyurethane, and has a heat conductivity of 0.03W/m.k, the end positioning ring 3 is located inside the outer tank 1 and is located near the end of the inner tank 2, and the end positioning ring 3 is used for limiting the axial position of the inner tank 2 in the outer tank 1;
a plurality of stiffening rings 4 along the circumference are fixedly arranged on the inner wall of the outer tank 1, the stiffening rings 4 are arranged along the axis, and a heat insulation support ring 5 is fixedly arranged on the inner side of each stiffening ring 4;
the inner wall of the inner tank 2 is provided with a heat insulation layer 7, and the heat insulation support ring 5 is in contact with the heat insulation layer 7;
in a preferred scheme, as shown in fig. 3, the stiffening ring 4 is made of L-shaped steel, one side of the L-shaped steel is positioned at the inner side, and the stiffening ring 4 is fixedly connected with the heat insulation support ring 5 through a side structure;
preferably, as shown in fig. 3, the material of the heat-insulating support ring 5 is rigid foam plastic and/or nano aerogel felt;
in another alternative structure, the heat-insulating support ring 5 is radially divided into a multi-layer structure, a rigid foam plastic layer is close to the L-shaped steel, for example, foaming, and a nano aerogel felt layer is far away from the L-shaped steel;
the nano aerogel felt layer is connected with the rigid foam plastic layer through the plastic nails with the barbs.
The other positions of the sealed cavity 6 are filled with heat insulating materials. For example, perlite or nano aerogel felt is filled between the stiffening ring 4 and the heat insulation support ring 5 as a heat insulation material.
In the preferred scheme, the heat insulating layer 7 is divided into at least two layers, wherein the inner layer is a glass fiber heat insulating layer, and the outer layer is an aluminized film layer; it is also feasible to use a silver-plated film layer for the aluminum-plated film layer, which is used to reflect the thermal radiation and a glass fiber thermal insulation layer which is mainly used to block the thermal conduction.
In a preferred scheme, as shown in fig. 2, 4 and 5, a plurality of support columns are further arranged between the inner tank 2 and the outer tank 1, and comprise a plurality of lower support columns 8 positioned at the bottom of the inner tank 2 and a plurality of upper support columns 9 positioned at the top of the inner tank 2.
The preferred scheme is as in fig. 2, and the structure of the lower support column 8 is: one end of the heat insulating cylinder 93 is fixedly connected to the outer tank 1, and the other end of the heat insulating cylinder 93 is provided with a sliding packing 95, the sliding packing 95 being in sliding contact with the heat insulating layer 7. The lower support column 8 is directly fixed and arranged in the inner wall of the outer tank 1. The sliding pad 95 is preferably made of glass fiber.
In a preferred embodiment, as shown in fig. 4 and 5, the upper support column 9 has the following structure: an installation opening is formed in the position, corresponding to the upper support column 9, of the outer tank 1, a reinforcing plate 91 is fixedly plugged in the installation opening, the reinforcing plate 91 is connected with an upper cover plate 92, the inner side of the upper cover plate 92 is connected with one end of a heat insulation column 93, and the other end of the heat insulation column 93 is connected with a sliding base plate 95 or a fixed base plate 96; the upper support column 9 is installed from the outer wall of the outer tank 1 when installed.
Wherein, the fixed backing plate 96 is provided with a limit step 97 for limiting the displacement of the heat insulation column 93, and the fixed backing plate 96 is fixedly connected with the heat insulation layer 7; the upper support columns 9 near the middle or one end of the inner tank 2 are connected with a fixed backing plate 96, and the upper support columns 9 at the rest positions are connected with a sliding backing plate 95; with this structure, it is convenient for the upper support column 9 to adapt to the deformation of the inner vessel 2.
The heat insulating cylinder 93 is filled with a filler 94, and the filler 94 is a heat insulating material having a vacuum expansion effect. Such as perlite or rigid foam, which expands when a vacuum is drawn within the sealed chamber 6, the air within the perlite expands, causing the perlite or rigid foam to expand.
In a preferred embodiment, as shown in fig. 6, the heat insulation column 93 comprises a heat insulation inner pipe 931 and a heat insulation outer pipe 933 slidably sleeved with each other, a heat insulation cushion layer 932 is provided between the heat insulation inner pipe 931 and the heat insulation outer pipe 933, and the cross section of the heat insulation cushion layer 932 is in a "z" shape so as to isolate the end faces and the side walls of the heat insulation inner pipe 931 and the heat insulation outer pipe 933 from each other. With this structure, the deformation of the inner tank 2 is compensated by the mutual sliding between the heat-insulating inner pipe 931 and the heat-insulating outer pipe 933 while ensuring the heat-insulating effect. Preferably, the heat insulation inner pipe 931 and the heat insulation outer pipe 933 are made of glass fiber. The insulating blanket 932 is a nano aerogel blanket. The heat insulating inner pipe 931 is filled with a heat insulating material having a vacuum expansion effect.
Example 2:
as an independent supporting structure, as shown in fig. 1 to 6, a supporting structure for an LNG storage tank is provided, wherein a plurality of stiffening rings 4 along the circumference are fixedly arranged on the inner wall of an outer tank 1, the plurality of stiffening rings 4 are arranged along the axis, and a heat insulation supporting ring 5 is fixedly arranged on the inner side of each stiffening ring 4;
the inner wall of the inner tank 2 is provided with a heat insulation layer 7, and the heat insulation support ring 5 is in contact with the heat insulation layer 7;
a plurality of support columns are arranged between the inner tank 2 and the outer tank 1, and comprise a plurality of lower support columns 8 positioned at the bottom of the inner tank 2 and a plurality of upper support columns 9 positioned at the top of the inner tank 2;
the upper support column 9 has the following structure: an installation opening is formed in the position, corresponding to the upper support column 9, of the outer tank 1, a reinforcing plate 91 is fixedly plugged in the installation opening, the reinforcing plate 91 is connected with an upper cover plate 92, the inner side of the upper cover plate 92 is connected with one end of a heat insulation column 93, and the other end of the heat insulation column 93 is connected with a sliding base plate 95 or a fixed base plate 96;
wherein, the fixed backing plate 96 is provided with a limit step 97 for limiting the displacement of the heat insulation column 93, and the fixed backing plate 96 is fixedly connected with the heat insulation layer 7;
the upper support columns 9 near the middle or one end of the inner tank 2 are connected with a fixed backing plate 96, and the upper support columns 9 at the rest positions are connected with a sliding backing plate 95;
the heat insulating cylinder 93 is filled with a filler 94, and the filler 94 is a heat insulating material having a vacuum expansion effect.
Example 3:
as shown in fig. 7, an installation method for the above-described LNG storage tank includes the steps of:
s1, coating the inner wall of the unsealed inner tank 200 with a heat insulating layer 7; the unsealed inner vessel 200 is the inner vessel with the end cap not installed.
S2, opening the unsealed inner tank 200 downwards and supporting reliably by the supporting frame 300; in a preferred scheme, as shown in fig. 7, the support frame 300 includes a frame body, which may be a single-column or annular column, and has to ensure reliable stress, and a plurality of adjustable cushion blocks 400 are disposed on the top and the side walls of the frame body; the adjustable spacer blocks 400 contact the inner wall of the unsealed inner vessel 200 and provide precise spacing and support.
The support of adjustable cushion 400 and support body fixed connection, adjustable cushion 400 and support sliding connection, the one end of adjustable cushion 400 is equipped with adjusting screw, and adjusting screw and support threaded connection adjust the position of adjustable cushion 400 through adjusting screw. The shape and position precision of the unsealed inner tank 200 meets the preset requirement through the adjustment of the adjustable cushion block 400.
S3, arranging an end positioning ring 3 on the inner wall of the unsealed outer tank 100;
s4, a plurality of stiffening rings 4 and heat-insulating support rings 5 are welded from top to bottom on the inner wall of the unsealed outer tank 100, the individual stiffening rings 4 being arranged along the horizontal. The space between every two stiffening rings 4 is filled with heat insulation material, such as nano aerogel felt layers; rigid foam layer in the adiabatic support ring 5 passes through the adhesive and is connected with stiffening ring 4, and nanometer aerogel carpet veneer is connected with rigid foam layer through a plurality of plastic nails of taking the overhead kick, and the overhead kick of plastic nail is located rigid foam intraformational, from this structure, reduces the installation degree of difficulty by a wide margin. After the heat-insulating support rings 5 are installed, a nano aerogel felt layer is also arranged between the heat-insulating support rings 5. After completion, the inner wall of the unsealed outer vessel 100 is smooth and free of protrusions.
S5, arranging a lower support column 8 on the inner wall of the unsealed outer tank 100;
s6, hoisting the unsealed outer tank 100 and sleeving the unsealed inner tank 200; during the hoisting process, no deformation of the heat-insulating support ring 5 is observed.
S7, integrally putting the unsealed outer tank 100, the unsealed inner tank 200 and the support frame 300 down, installing each external connecting pipe, and installing the support column 9 on the outer wall of the unsealed outer tank 100;
the method specifically comprises the following steps: firstly, a sliding base plate 95 and a fixed base plate 96 are arranged at an opening of the outer wall of the outer tank, the sliding base plate 95 and the fixed base plate 96 are connected with the heat insulating layer 7 in an adhesive mode, then the reinforcing plate 91 is connected in a welding mode, finally, the heat insulating column 93 and the upper cover plate 92 are arranged, and the upper cover plate 92 and the reinforcing plate 91 are connected in a welding mode.
S8, taking out the support frame 300, installing the inner tank end cover, various connecting pipes, filling heat insulation materials and installing the outer tank end cover;
s9, vacuumizing the sealed cavity 6;
through the steps, the installation of the LNG storage tank is realized.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (10)
1. The utility model provides a LNG storage tank, includes outer jar (1) and inner tank (2), and inner tank (2) are located outer jar (1), constitute sealed chamber (6) between inner tank (2) and outer jar (1), are equipped with between inner tank (2) and outer jar (1) and support adiabatic structure, characterized by: the supporting heat insulation structure comprises an end positioning ring (3), the end positioning ring (3) is positioned on the inner side of the outer tank (1) and is close to the end of the inner tank (2), and the end positioning ring (3) is used for limiting the axial position of the inner tank (2) in the outer tank (1);
a plurality of stiffening rings (4) along the circumference are fixedly arranged on the inner wall of the outer tank (1), the stiffening rings (4) are arranged along the axis, and a heat insulation support ring (5) is fixedly arranged on the inner side of each stiffening ring (4);
the inner wall of the inner tank (2) is provided with a heat insulation layer (7), and the heat insulation support ring (5) is in contact with the heat insulation layer (7);
the other positions of the sealed cavity (6) are filled with heat insulating materials.
2. An LNG storage tank according to claim 1, characterized in that: the heat insulation layer (7) is divided into at least two layers, the inner layer is a glass fiber heat insulation layer, and the outer layer is an aluminum-plated film layer;
the material of the heat insulation support ring (5) is rigid foam plastic and/or nano aerogel felt;
the heat insulating material is perlite or nano aerogel felt.
3. An LNG storage tank according to claim 1, characterized in that: the stiffening ring (4) is made of L-shaped steel, one side of the L-shaped steel is positioned at the inner side, and the stiffening ring (4) is fixedly connected with the heat-insulating support ring (5) through the structure of the side;
the heat insulation support ring (5) is divided into a multi-layer structure along the radial direction, a hard foam plastic layer is close to the L-shaped steel, and a nano aerogel felt layer is far away from the L-shaped steel;
the nano aerogel felt layer is connected with the rigid foam plastic layer through the plastic nails with the barbs.
4. An LNG storage tank according to claim 1, characterized in that: still be equipped with a plurality of support columns between inner tank (2) and outer jar (1), including a plurality of lower support columns (8) that are located inner tank (2) bottom position and a plurality of upper support columns (9) that are located inner tank (2) top.
5. An LNG storage tank according to claim 4, characterized in that: the structure of the lower support column (8) is as follows: one end of the heat insulation column body (93) is fixedly connected with the outer tank (1), the other end of the heat insulation column body (93) is provided with a sliding base plate (95), and the sliding base plate (95) is in contact with the heat insulation layer (7).
6. An LNG storage tank according to claim 4, characterized in that: the upper support column (9) has the structure that: an installation opening is formed in the position, corresponding to the upper support column (9), of the outer tank (1), a reinforcing plate (91) is fixedly plugged in the installation opening, the reinforcing plate (91) is connected with an upper cover plate (92), the inner side of the upper cover plate (92) is connected with one end of a heat insulation column body (93), and the other end of the heat insulation column body (93) is connected with a sliding base plate (95) or a fixed base plate (96);
wherein the fixed backing plate (96) is provided with a limiting step (97) for limiting the displacement of the heat insulation column body (93), and the fixed backing plate (96) is fixedly connected with the heat insulation layer (7);
the upper support columns (9) near the middle or one end of the inner tank (2) are connected with the fixed backing plate (96), and the upper support columns (9) at the rest positions are connected with the sliding backing plate (95);
the heat insulating column (93) is filled with a filler (94), and the filler (94) is made of a heat insulating material having a vacuum expansion effect.
7. An LNG storage tank according to claim 5 or 6, characterized in that: the heat insulation column body (93) comprises a heat insulation inner pipe (931) and a heat insulation outer pipe (933) which are in sliding sleeve joint with each other, a heat insulation cushion layer (932) is arranged between the heat insulation inner pipe (931) and the heat insulation outer pipe (933), and the cross section of the heat insulation cushion layer (932) is Z-shaped so as to isolate the end face and the side wall of the heat insulation inner pipe (931) and the heat insulation outer pipe (933).
8. A bearing structure for LNG storage tank, characterized by: a plurality of stiffening rings (4) along the circumference are fixedly arranged on the inner wall of the outer tank (1), the stiffening rings (4) are arranged along the axis, and a heat insulation support ring (5) is fixedly arranged on the inner side of each stiffening ring (4);
the inner wall of the inner tank (2) is provided with a heat insulation layer (7), and the heat insulation support ring (5) is in contact with the heat insulation layer (7);
still be equipped with a plurality of support columns between inner tank (2) and outer jar (1), including a plurality of lower support columns (8) that are located inner tank (2) bottom position and a plurality of upper support columns (9) that are located inner tank (2) top.
9. A support structure for an LNG storage tank according to claim 8, characterized in that: the upper support column (9) has the structure that: an installation opening is formed in the position, corresponding to the upper support column (9), of the outer tank (1), a reinforcing plate (91) is fixedly plugged in the installation opening, the reinforcing plate (91) is connected with an upper cover plate (92), the inner side of the upper cover plate (92) is connected with one end of a heat insulation column body (93), and the other end of the heat insulation column body (93) is connected with a sliding base plate (95) or a fixed base plate (96);
wherein the fixed backing plate (96) is provided with a limiting step (97) for limiting the displacement of the heat insulation column body (93), and the fixed backing plate (96) is fixedly connected with the heat insulation layer (7);
the upper supporting columns (9) near the middle or one end of the inner tank (2) are connected with the fixed backing plate (96), and the upper supporting columns (9) at the rest positions are connected with the sliding backing plate (95).
10. A support structure for an LNG storage tank according to claim 9, characterized in that: the heat insulating column (93) is filled with a filler (94), and the filler (94) is made of a heat insulating material having a vacuum expansion effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220460407.2U CN217208904U (en) | 2022-03-04 | 2022-03-04 | LNG storage tank and bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220460407.2U CN217208904U (en) | 2022-03-04 | 2022-03-04 | LNG storage tank and bearing structure |
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| Publication Number | Publication Date |
|---|---|
| CN217208904U true CN217208904U (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220460407.2U Active CN217208904U (en) | 2022-03-04 | 2022-03-04 | LNG storage tank and bearing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857484A (en) * | 2022-03-04 | 2022-08-05 | 宜昌江峡船用机械有限责任公司 | LNG storage tank, supporting structure and installation method |
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- 2022-03-04 CN CN202220460407.2U patent/CN217208904U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857484A (en) * | 2022-03-04 | 2022-08-05 | 宜昌江峡船用机械有限责任公司 | LNG storage tank, supporting structure and installation method |
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