CN114104539A - Three-shell metal vacuum low-temperature liquid storage tank - Google Patents
Three-shell metal vacuum low-temperature liquid storage tank Download PDFInfo
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- CN114104539A CN114104539A CN202111476187.9A CN202111476187A CN114104539A CN 114104539 A CN114104539 A CN 114104539A CN 202111476187 A CN202111476187 A CN 202111476187A CN 114104539 A CN114104539 A CN 114104539A
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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
- B65D88/00—Large containers
- B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
- B65D88/744—Large containers having means for heating, cooling, aerating or other conditioning of contents heating or cooling through the walls or internal parts of the container, e.g. circulation of fluid inside the walls
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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
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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
- B65D90/48—Arrangements of indicating or measuring devices
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Abstract
The invention discloses a three-shell metal vacuum low-temperature liquid storage tank, which belongs to the technical field of low-temperature storage devices and comprises: the heat insulation and cold insulation device comprises an inner shell, a middle shell, an outer support, an inner support and an insulation and cold insulation material, wherein the three shells are radially supported with each other through the outer support and the inner support, the middle shell and the inner shell form an interlayer, and the insulation and cold insulation material is filled in the interlayer; the outer shell and the middle shell form an interlayer which is a vacuum layer, the surface of the vacuum layer is polished, and the vacuum layer is coated with reflective paint. The invention takes the three-shell metal shell, the vacuum heat insulation layer and the insulating cold insulation layer as the design basis, improves the cold insulation performance of the storage tank, reduces the evaporation rate and improves the storage time of liquefied gas; the three-shell metal shell and the two-layer heat-insulating and cold-insulating layer also improve the safety of the storage tank and reduce the accident risk of liquid leakage.
Description
Technical Field
The invention relates to the technical field of cryogenic storage devices for frozen liquefied gases (such as liquefied natural gas, liquid nitrogen, liquid oxygen, liquid hydrogen, liquid helium and the like), in particular to a three-shell metal vacuum cryogenic liquid storage tank.
Background
At present, with the aim of 'double carbon', the refrigerated liquefied gases such as liquefied natural gas and liquid hydrogen become the preferred energy source for replacing petroleum by virtue of the advantages of green, environmental protection and high efficiency. With the rapid development of the economy of China and the continuous improvement of the requirement on environmental governance, the application and development of liquefied natural gas and liquid hydrogen are more and more emphasized by all parties, and are one of the key directions of the development of clean energy in China in the future. Liquid nitrogen and liquid helium are used as common inert gases and cooling media, are widely applied in the fields of industry and energy, but are particularly important in a cold insulation mode due to low temperature.
The liquid frozen gas is a cryogenic gas storage technology, and is stored in a special container through gas liquefaction in an ultralow temperature environment. The density of liquefied natural gas, hydrogen, nitrogen, helium and the like is greatly improved compared with the normal temperature, and the pressure requirement on the container is also reduced compared with high-pressure gas storage, so that the gas storage quality of the container with the same volume is greatly improved.
Disclosure of Invention
The invention discloses a three-shell metal vacuum low-temperature liquid storage tank for storing frozen liquefied gas. The three-shell metal shell, the vacuum heat insulation layer and the insulating cold insulation layer are used as design bases, so that the cold insulation performance of the storage tank is improved, the evaporation rate is reduced, and the storage time of liquefied gas is prolonged; the three-shell metal shell and the two-layer heat-insulating and cold-insulating layer also improve the safety of the storage tank and reduce the accident risk of liquid leakage. The invention can be used for a new energy vehicle-mounted or marine fuel tank, can also be used as a land low-temperature liquid storage tank, and is a safe and environment-friendly new energy storage tank.
In order to achieve the purpose, the invention provides the following technical scheme: a three-shell metal vacuum low-temperature liquid storage tank is composed of an inner shell, a middle shell, an outer layer support, an inner layer support and insulating cold insulation materials, wherein the three layers of shells are radially supported with each other through the outer layer support and the inner layer support, the middle shell and the inner shell form an interlayer, and the insulating cold insulation materials are filled in the interlayer; the outer shell and the middle shell form an interlayer which is a vacuum layer, the surface of the vacuum layer is polished, and the vacuum layer is coated with reflective paint.
As an improvement of the technical scheme, the inner shell is made of 304 stainless steel, 316 stainless steel or aluminum alloy, and the thickness of the inner shell is 1mm-20 mm; the end part is an elliptical end socket, a butterfly end socket or a circular end socket, or the cross section of the middle part is circular, square or elliptical according to the composite design of the shape of the middle part of the shell, and reinforcing ribs are arranged inside the middle part to increase the strength.
As an improvement of the technical scheme, the middle shell is made of 304 stainless steel, 316 stainless steel or aluminum alloy, the thickness of the middle shell is 1mm-20mm, the end part of the middle shell is an elliptical end socket, a butterfly end socket or a circular end socket, or the cross section of the middle part of the middle shell is circular, square or elliptical according to the composite design of the shape of the middle part of the shell.
As an improvement of the technical scheme, the outer shell is made of 304 stainless steel, 316 stainless steel or aluminum alloy, the thickness of the outer shell is 1mm-20mm, the end part of the outer shell is an elliptical end socket, a butterfly end socket or a circular end socket, or the cross section of the middle part of the outer shell is circular, square or elliptical according to the composite design of the shape of the middle part of the outer shell, reinforcing ribs are arranged inside the outer shell to increase the buckling resistance under vacuum, and the whole storage tank is supported on the outer shell.
As an improvement of the technical proposal, the support of the whole storage tank is a saddle.
As an improvement of the technical scheme, the front end of the outer layer support restrains the radial displacement and the axial displacement of the middle shell, and the rear end of the outer layer support restrains the radial displacement of the middle shell, so that the axial contraction caused by temperature difference is not limited.
As an improvement of the technical scheme, the front end of the inner layer support restrains the radial and axial displacement of the inner shell, and the rear end of the inner side support restrains the radial displacement of the inner shell, so that the axial contraction caused by temperature difference is not limited.
As an improvement of the technical scheme, the insulating and cold-insulating material is made of aerogel, reinforced polyurethane foam material, diene elastic foam material or glass fiber materialThe density of the material is 20-300kg/m3。
Compared with the prior art, the invention has the following beneficial effects:
1. the three-shell metal shell has the advantages of safety, environmental protection and greenness. Can effectively reduce the evaporation rate and improve the safety, and ensures that liquid or gas is not leaked.
2. The vacuum heat insulation layer, the insulating cold insulation layer and the double-layer heat insulation cold insulation system have good effects of reducing the evaporation rate of liquid and maintaining the liquid state time.
3. The vacuum layer can be provided with a gas leakage system and a pressure monitoring system, so that leakage is effectively monitored, and safety is further improved.
Drawings
FIG. 1 is a schematic cross-sectional view of a three-shell metal high vacuum cryogenic liquid storage tank of the present invention;
wherein, 1 an inner shell; 2 a middle shell; 3 an outer shell; 4, outer layer supporting; 5, inner layer supporting; 6 insulating cold insulation material.
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, the present invention provides a technical solution:
a three-shell metal vacuum low-temperature liquid storage tank is composed of an inner shell 1, a middle shell 2, an outer shell 3, an outer support 4, an inner support 5 and insulating cold insulation materials 6, wherein the three layers of shells are radially supported by the outer support 4 and the inner support 5, the middle shell 2 and the inner shell 1 form an interlayer, and the insulating cold insulation materials 6 are filled in the interlayer; the outer shell 3 and the middle shell 2 form an interlayer which is a vacuum layer, the surface of the vacuum layer is polished, and reflective paint is coated on the surface of the vacuum layer. The invention takes the three-shell metal shell, the vacuum heat insulation layer and the insulating cold insulation layer as the design basis, improves the cold insulation performance of the storage tank, reduces the evaporation rate and improves the storage time of liquefied gas; the three-shell metal shell and the two-layer heat-insulating and cold-insulating layer also improve the safety of the storage tank and reduce the accident risk of liquid leakage. The invention can be used for a new energy vehicle-mounted or marine fuel tank, can also be used as a land low-temperature liquid storage tank, and is a safe and environment-friendly new energy storage tank.
The inner shell 1 is made of 304 stainless steel, 316 stainless steel or aluminum alloy, and the thickness is 1mm-20 mm; the end part is an elliptical end socket, a butterfly end socket or a circular end socket, or the cross section of the middle part is circular, square or elliptical according to the composite design of the shape of the middle part of the shell, and reinforcing ribs are arranged inside the middle part.
The middle shell 2 is made of 304 stainless steel, 316 stainless steel or aluminum alloy, the thickness is 1mm-20mm, the end part is an elliptical end socket, a butterfly end socket or a circular end socket, or the cross section of the middle part is circular, square or elliptical according to the composite design of the shape of the middle part of the shell.
The outer shell 3 is made of 304 stainless steel, 316 stainless steel or aluminum alloy, the thickness is 1mm-20mm, the end part is in the shape of an elliptical seal head, a butterfly seal head or a circular seal head, or the cross section of the middle part is in the shape of a circle, a square or an ellipse according to the composite design of the shape of the middle part of the shell, reinforcing ribs are arranged inside the outer shell 3, and the whole storage tank is supported on the outer shell 3. The support for the entire reservoir is a saddle.
The front end of the outer layer support 4 restrains the radial and axial displacement of the middle shell 2, and the rear end of the outer layer support 4 restrains the radial displacement of the middle shell 2, so that the axial contraction caused by temperature difference is not limited.
The front end of the inner layer support 5 restrains the radial and axial displacement of the inner shell 1, and the rear end of the inner side support 5 restrains the radial displacement of the inner shell 1, so that the axial contraction caused by temperature difference is not limited.
The insulating cold insulation material 6 is made of aerogel, reinforced polyurethane foam material, diene elastic foam material or glass fiber material, and has a density of 20-300kg/m3。
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A three-shell metal vacuum low-temperature liquid storage tank consists of an inner shell (1), a middle shell (2), an outer shell (3), an outer support (4), an inner support (5) and insulating and cold-insulating materials (6), wherein the three shells are radially supported by the outer support (4) and the inner support (5), the middle shell (2) and the inner shell (1) form an interlayer, and the insulating and cold-insulating materials (6) are filled; the outer shell (3) and the middle shell (2) form an interlayer which is a vacuum layer, the surface of the vacuum layer is polished, and reflective paint is coated on the surface of the vacuum layer.
2. The three-shell metal vacuum cryogenic liquid storage tank of claim 1, wherein: the inner shell (1) is made of 304 stainless steel, 316 stainless steel or aluminum alloy, and the thickness is 1mm-20 mm; the end part is an elliptical end socket, a butterfly end socket or a circular end socket, or the cross section of the middle part is circular, square or elliptical according to the composite design of the shape of the middle part of the shell, and reinforcing ribs are arranged inside the middle part.
3. The three-shell metal vacuum cryogenic liquid storage tank of claim 1, wherein: the middle shell (2) is made of 304 stainless steel, 316 stainless steel or aluminum alloy, the thickness is 1mm-20mm, the end part is an elliptical end socket, a butterfly end socket or a circular end socket, or the cross section of the middle part is circular, square or elliptical according to the composite design of the shape of the middle part of the shell.
4. The three-shell metal vacuum cryogenic liquid storage tank of claim 1, wherein: the outer shell (3) is made of 304 stainless steel, 316 stainless steel or aluminum alloy, the thickness is 1mm-20mm, the end part of the outer shell is an elliptical seal head, a butterfly seal head or a circular seal head, or the cross section of the middle part of the outer shell is circular, square or elliptical according to the composite design of the shape of the middle part of the outer shell, reinforcing ribs are arranged inside the outer shell (3), and the whole storage tank is supported on the outer shell (3).
5. The three-shell metal vacuum cryogenic liquid storage tank of claim 4, wherein: the support for the entire reservoir is a saddle.
6. The three-shell metal vacuum cryogenic liquid storage tank of claim 1, wherein: the front end of the outer layer support (4) restrains radial and axial displacement of the middle shell (2), and the rear end of the outer layer support (4) restrains radial displacement of the middle shell (2).
7. The three-shell metal vacuum cryogenic liquid storage tank of claim 1, wherein: the front end of the inner support (5) restrains radial and axial displacement of the inner shell (1), and the rear end of the inner support (5) restrains radial displacement of the inner shell (1).
8. The three-shell metal vacuum cryogenic liquid storage tank of claim 1, wherein: the insulating cold insulation material (6) is made of aerogel, reinforced polyurethane foam material, diene elastic foam material or glass fiber material, and the density is 20-300kg/m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111476187.9A CN114104539A (en) | 2021-12-06 | 2021-12-06 | Three-shell metal vacuum low-temperature liquid storage tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111476187.9A CN114104539A (en) | 2021-12-06 | 2021-12-06 | Three-shell metal vacuum low-temperature liquid storage tank |
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| Publication Number | Publication Date |
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| CN114104539A true CN114104539A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111476187.9A Pending CN114104539A (en) | 2021-12-06 | 2021-12-06 | Three-shell metal vacuum low-temperature liquid storage tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673924A (en) * | 2022-03-18 | 2022-06-28 | 中国人民解放军63796部队 | Multilayer low-temperature storage tank for supercooled oxygen preparation and lossless storage |
-
2021
- 2021-12-06 CN CN202111476187.9A patent/CN114104539A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673924A (en) * | 2022-03-18 | 2022-06-28 | 中国人民解放军63796部队 | Multilayer low-temperature storage tank for supercooled oxygen preparation and lossless storage |
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