专利摘要:
Membrane tank having utility for the transportation and storage of liquefied gases, such as liquefied natural gas, the tank wall being comprised of two sets of warped surfaces with double curvatures, all sections of which are curved, with the surfaces of both sets being alike but having curvatures in opposite directions, some being concave and others convex in an alternating arrangement and being tangent at their common borders, each of said surfaces being anchored to a second outer wall by means of columns or partitions which project perpendicularly to a plane defined by the vertices of the warped surfaces.
公开号:SU735189A3
申请号:SU772462906
申请日:1977-03-23
公开日:1980-05-15
发明作者:Домингес Алонсо Мануель
申请人:Астиллерос И Таллерес Дель Нороесте С.А. (Фирма);
IPC主号:
专利说明:

(54) MEMBRANE TANK FOR LIQUEFIED GASES
The invention relates to the field of cryogenic engineering and can be used for the transportation and storage of liquefied gases, mainly natural, in various fields. A membrane tank for liquefied gases is known, comprising a housing, a layer of heat insulating material and an inner hermetic shell divided by partitions into a number of cells 1.. In tanks of this type, the wall does not have its own rigidity, since it directs all static and dynamic loads to the external supporting structure. In addition, there are no thermal stresses in these tanks, since the walls are made of special alloys, such as Invar, with a low expansion coefficient, or of steels with a low nickel content. The waviness on the wall is positioned in such a way that it absorbs contractions and expansions caused by changes in temperature. The disadvantages of the known reservoir include explosion and fire hazards, as well as the complexity of manufacturing and installation. The aim of the invention is to increase the safety of operation and simplify the manufacture and installation of the tank. The goal is achieved by the fact that each cell in the section is made in the form of a curvilinear quadrangle, two opposite sides, which are convex, and the other two are concave. In addition, the tank is equipped with additional rows of cells mounted on the inner shell; The cells are equipped with support posts installed at the vertices of the quadrilateral, and the inner shell and support posts are made of waterproof material, such as plastic. The special shape of the wall and the secondary layer or additional layer allows the use of wall and additional layer materials traditionally used for tanks of this type, as well as reinforced and unreinforced plastics, as a result of which the structure and its installation are simplified and reduced. The tank wall consists of two groups of curvilinear surfaces with double curvature, parts of which in any plane are curvilinear, while the surfaces of both groups are the same, but with opposite curvature, i.e., some are concave, others are convex. They alternate between each other, forming a tank wall, and are tangentially positioned at common boundary points. These curvilinear surfaces are attached to the second outer wall by means of racks arranged perpendicular to the contour of the surfaces in question.
The outer wall may be the same non-existing structure on which the tank is mounted, or an independent wall of the supporting structure that surrounds the tank and is similar to the wall of the tank, which is perpendicular to the connecting posts extending between the second partition wall and the wall of the tank.
In this case, the second wall serves as an additional layer, the free space of which is filled with an elastic material that is used as an insulating coating for the reservoir.
With this design, the wall of the tank and the additional layer can be manufactured simultaneously with the insulating layer. In addition, such a construction can be made from parts or modules of the appropriate size to facilitate handling, whereby the fabrication of the vessel wall, the additional layer and the insulating coating is reduced to assembling or interconnecting the modules.
The second wall surrounding the reservoir is preferably arranged parallel to the surface formed by the vertices of the curved surfaces constituting the wall of the reservoir, which allows the connecting partitions to run perpendicularly between the wall of the reservoir and the second wall.
The second wall may be flat, or it may be formed by curved surfaces that are symmetrical with curved surfaces that form the tank wall relative to an intermediate surface parallel to the surface formed by the curvilinear surfaces that make up the tank wall. Thanks to this design, the connecting posts will be perpendicular between the contour of the symmetrical curved surfaces of both walls.
When the second wall consists of curved surfaces, it is surrounded by a third wall parallel to the surface formed by the vertices of the curved surfaces of the tank wall, connecting the curved surfaces constituting the second wall to the third wall by means of racks extending from the contour of said curved surfaces
And perpendicular to curved surfaces and to the third wall.
Thus, a knot is formed consisting of three walls: one inner wall consisting of curvilinear surfaces and forming a wall of the reservoir; one is intermediate, also consisting of curvilinear surfaces, and a flat outer wall, supported directly on the supporting structure.
The third wall may be made of the same material as the first and second walls, as well as partitions and connecting struts.
The design of the reservoir — insulation — an additional partition for the case of three walls can be performed in the same way as with two walls of modules connected to each other.
The connecting partitions are located along the contour of all curved surfaces, forming compartments between two walls that can be sealed; or intermediate holes are made in them that provide communication between the compartments, in the case when the connection between two machines is made with the help of racks going from the corners of curvilinear quadrilaterals.
Curved surfaces are in plan a curved quadrilateral with sides of equal length, the adjacent sides of which have the same
 curvature, but the opposite sign.
The wall surrounding the reservoir, the second and (if any) third walls, as well as the connecting posts can be made of reinforced and non-reinforced plastic material.
Modular blocks with a base can be made of plastic material, which contain the tank wall, second and third (if any) walls, as well as connective walls and racks.
 These modules are connected to each other, so that a closed and sealed space will not be obtained which already has an additional partition, between the walls of which an insulating material is used which is used as an insulating coating for the tank.
If desired, the outer wall, whether a second or third wall, can be attached to the supporting structure. P The structure obtained with a base made of plastic material can be strengthened in place by reinforcing the outer surface.
If necessary, the surfaces forming the wall can be spherical or cylindrical.
A membrane reservoir is provided in which the wall absorbs compressions and expansions due to temperature changes by reducing or increasing the curvature of curved surfaces. The static and dynamic pressures are transmitted to the outer wall through the connecting struts, and then to the supporting structure. An additional partition is formed by the second and third walls, if the latter is present, and the insulating coating is obtained by injecting an insulating material between the inner and outer walls of the reservoir. FIG. 1 is a plan view of a portion of the tank wall; in fig. 2 is a cut A-A in FIG. one; in fig. 3 shows a section B-B in FIG. one; in fig. 4 and 5 are views similar to those shown in FIG. 2 and 3, but another design variant; in fig. 6 is a perspective view of a portion of the reservoir wall. The wall of the tank consists of two elements with curvilinear surfaces with double curvature, parts of which in any plane have a curve-shaped shape. The surfaces of both elements are the same, but with opposite curvature, i.e. some of them are concave 1 and the other part is convex 2. As can be seen from FIG. 1, the curved surfaces alternate with each other. Moreover, as shown in FIG. 2 and 3, both groups of surfaces are tangentially located on common borders. The surfaces of both elements are fixed to the second outer wall 3 by means of racks 4 arranged perpendicular to the contour of surfaces 1 and 2, indicated either by double dotted lines that limit surfaces 1 and 2. The outer wall 3 can be flat, as shown in FIG. 2 and 3, and is part of the supporting structure on which the tank is mounted. Between the wall of the tank formed by the surfaces 1 and 2, and the outer wall 3 there is a space which intersects the pillars 4 and which is filled with an insulating material used as an insulating coating for the tank. In the example presented in the drawings, the curved surfaces are shown in the plan, and their contour has the shape of a curved four-rectangular shape, the adjacent sides 5 and 6 of which have the same, but opposite in sign, curvature. . Partitions acting as connecting elements of curved surfaces with a wall 3, form between the reservoir wall and the wall 3 waterproof compartments that can be interconnected by means of vertical holes in said walls. If the tank wall is fixed to the wall 3 with the help of racks, the latter are directed from the vertices of the curvilinear quadrilaterals, although they can also come from intermediate points at the boundaries of the curvilinear surfaces. In accordance with the possible options shown in FIG. 4 and 5, the second wall 3 may consist of two sections of curved surfaces 7 and 8, symmetrical to curvilinear surfaces 1 and 2, forming a reservoir wall, with respect to an intermediate surface parallel to the surface formed by the edges of curved surfaces 1 and 2 connecting As in the previous case, the wall of the tank with the second wall 3 and with the help of racks arranged perpendicular to the curved linear surfaces of both walls and made in accordance with the contours of these surfaces. In this case, the wall 3 will be surrounded by a third wall 9 having a flat shape, and between them perpendicular to the surfaces 7 and 8 of the flat wall 9 connecting intermediate partitions 10 are located. The element bounding the reservoir will in this case consist of an inner wall with curvilinear surfaces 1 and 2, intermediate wall 3 with curved surfaces 7 and 8, which are symmetrical to surfaces 1 and 2, and the third outer flat wall 9. These three walls, as well as intermediate posts 4 and partitions 10, are preferably made made of the same material, e.g. a reinforced or unreinforced plastic material. The entire assembly delimiting the reservoir can be obtained by shaping, the first step of which is to manufacture curved surfaces 1 and 2 and racks 4. The next step is to obtain curved surfaces 7 and 8 and partitions 10. Finally, in the third step, a flat surface is attached 9 to form a unit with spaces between the three walls, which is filled with an appropriate insulating material. Thus, a tank wall with an additional partition and insulating material is obtained. The flat wall 9 for the case shown in FIG. 4 and 5, and the wall 3 for the case shown in FIG. 2 and 3, are supported directly on the support structure on which the tank is mounted. As shown in FIG. 6, the wall of the tank can be made of modules in one row, thereby having the construction shown in FIG. 2 and 3. However, blocks or modules can be installed in two floors, as in FIG. 4 and 5. In a transverse relationship, the modules are bounded by curved surfaces that are concave into adjacent walls, so that the combined modules are quickly and easily combined. If the intermediate walls and partitions are made of plastic, then their connection is carried out by means of adhesion.
FIG. 6 shows the supporting structure 11, on which the third wall 9 or the second wall 3 is supported, depending on whether the assembly is two- or one-storeyed.
In these modules, the pillars 4, which act as connecting elements, close the modules laterally to form waterproof modules that were previously filled with insulating material.
Thanks to HcnbKsoBaHHte it; rilCfw4ecKHx materials, both reinforced and unreinforced, the construction is greatly simplified, resulting in the formation of molded modules that connect with each other by means of fusion, and, in addition, the cost of the tank is reduced by using more economical materials while reducing its weight and production time.
权利要求:
Claims (5)
[1]
1. Diaphragm tank for liquefied gases, comprising a housing, a layer of heat .. -G I
fpt / s.
eight
an insulating material and an inner hermetic shell divided by partitions into a series of cells, characterized in that, in order to increase operational safety and simplify the manufacture and installation of the tank, each cell in section is made in the form of a curvilinear quadrilateral, the two opposite sides of which are convex, and the other two - concave.
[2]
2. A reservoir according to claim 1, characterized in that it is provided with additional rows of cells mounted on the inner shell.
[3]
3. Reservoir for PP. 1, 2, characterized in that the cells are provided with supporting posts installed in the vertices of the quadrilateral.
[4]
4. The reservoir for PP. 1-3, characterized in that the inner shell and the uprights are made of waterproof material.
[5]
5. Reservoir for PP. 1-4, characterized in that the inner shell and the uprights are made of plastic.
Sources of information taken into account in the examination 1. Patent of Germany No. 1506753, - .. 17 g, 4 07.12.73.
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US2971667A|1961-02-14|Expansible-wall container for lowtemperature fluids
US2958442A|1960-11-01|Internal insulation of containers for liquids having lower boiling point than atmospheric temperature
同族专利:
公开号 | 公开日
GB1580970A|1980-12-10|
FI67135B|1984-09-28|
NO143114C|1980-12-17|
JPS5341811A|1978-04-15|
FI770667A|1978-03-28|
DK91577A|1978-03-28|
FI67135C|1985-01-10|
YU56177A|1982-06-30|
DE2708097A1|1978-04-06|
NL7703207A|1978-03-29|
NO143114B|1980-09-08|
US4089468A|1978-05-16|
JPS5634752B2|1981-08-12|
SE7702264L|1978-03-28|
NO771192L|1978-03-29|
ES451890A1|1977-10-01|
BE851672A|1977-06-16|
IT1077512B|1985-05-04|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题
EA007990B1|2004-08-11|2007-02-27|Эни С.П.А.|Process for the zero emission storage of sulphur|
RU2567481C2|2010-12-01|2015-11-10|ГАЗТРАНСПОР э ТЕКНИГАЗ|Vessel wall watertight barrier|
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US2971667A|1958-04-03|1961-02-14|Conch Int Methane Ltd|Expansible-wall container for lowtemperature fluids|
US3191792A|1962-10-11|1965-06-29|David A Hunt|Membrane double wall interconnected pressure vessel|
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FR1555607A|1967-08-31|1969-01-31|
GB1442399A|1973-05-18|1976-07-14|Marine Ind Developments Ltd|Containers for storing substances at sub-zero temperatures|
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JPS5186818A|1975-01-28|1976-07-29|Nippon Oxygen Co Ltd| Teionekikagasuyotankutosonodannetsuzaiyunitsuto |NO178554C|1994-03-28|1996-04-17|Kvaerner Moss Tech As|Thermally insulated tank and wall module element for use in building the tank|
KR20100015355A|2007-03-02|2010-02-12|에너씨 트랜스포트 엘엘씨|Apparatus and method for flowing compressed fluids into and out of containment|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
ES451890A|ES451890A1|1976-09-27|1976-09-27|Tanks having membranes|
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