KR101831440B1 - Impermeable wall structure - Google Patents

Abstract

A mounting-ready assembly suitable for fabricating an impermeable wall structure comprises: an impermeable metal plate (1) having a series of first parallel pleats (5) intersecting at intersections (3) and a series of second parallel pleats 1), an elongated reinforcing portion (15) designed to be placed in one of said pleats (6, 5) to increase the resistance of the plate to pressure, and a fastening portion (30) And a retaining member (44), wherein the attachment member is designed to attach to the outer surface of the plate at the intersection of the wrinkle where the reinforcement portion is to be held, and the retaining member is configured to retain the reinforcement portion in the longitudinal direction Is designed to cooperate with the end. Corresponding impermeable wall structures are used in impermeable and adiabatic tanks, especially methane tankers.

Description

Impermeable wall structure < RTI ID = 0.0 >

The present invention relates to the field of manufacturing wrinkled metal membrane tanks and, more particularly, to tanks designed to include cooling liquid products.

In particular in the field of metal membrane tanks, particularly in the storage and transportation of liquefied natural gas (LNG), the impermeable membrane consists of pleated impermeable plates, which are arranged on the inner surface in a series of first pleats And a series of second pleats, the individual directions of the pleats are orthogonal. These types of corrugations provide an elastic deformation capacity to the metal membrane, which can include thermal condensation, hydrostatic pressure of the load (load), dynamic pressure caused by the movements of the load, and in the case of a buoyant structure The hull is designed to absorb stresses that may arise from the inflating deformation. However, these types of wrinkles can be vulnerable to excessive pressure forces.

In order to improve the resistance of this type of membrane to pressure, French application FR-A-2936784 proposes inserting reinforcing elements under the pleats between the membrane and its support. One of the proposed strengthening elements can be clipped to the undercut of the membrane.

The present invention is to provide an impermeable wall structure.

According to one embodiment, the present invention provides a ready-to-mount assembly suitable for producing an impermeable wall structure, the assembly comprising an impermeable metal plate; An elongated reinforcing portion; Wherein the impermeable metal plate has a series of first parallel pleats and a series of second parallel pleats wherein the first parallel pleats intersect the second parallel pleats at a height of the intersection, Projecting from the inner surface side of the light-

The elongated reinforcing portion may be disposed in one of the pleats on an outer surface of the plate opposite the inner surface to increase resistance to pressure of the plate,

The holding part includes an attachment unit and a holding unit, which can be attached to the outer surface of the plate at the height of the intersection of the wrinkle where the reinforcing part is to be held, As shown in FIG.

According to some embodiments, this type of assembly may have one or more of the following features.

According to one embodiment, the anchoring portion comprises, for example, two, three or four, a plurality of retaining units, which retain the reinforcement portions in the plurality of pleat compartments at the height of the intersection to which the anchoring portion is attached For example, two, three or four, with the individual ends of a plurality of reinforcing sections.

According to one embodiment, in a state of support in which the holding unit stops the end of the reinforcing portion in a direction perpendicular to the plate, the holding unit or each holding unit can work together with the end of the reinforcing portion.

According to one embodiment, the holding unit or each holding unit can work together with the end portion of the reinforcing portion in a fixed state in which the holding unit fixes the reinforcing portion on the fixing portion, .

According to one embodiment, the holding unit or each holding unit and the reinforcing portion or each reinforcing portion are designed to work together in the two cooperating states. Thus, the conditions that work together most appropriately can be selected according to the application characteristics involved by always using a single set of fixed and reinforced portions.

According to one embodiment, the retaining unit or each retaining unit of the retaining portion is disposed at an end of the arm connected to the attaching unit, and the arm is configured such that in the attachment state of the retaining portion, the reinforcement portion extends in the crease that must be retained by the retaining unit .

According to one embodiment, the arm or each arm of the anchoring portion includes a positioning unit having an outline designed for the cross-sectional shape of the corrugation of the plate, the positioning unit positioning the arm in the corrugation, Can act together with the plate at the height of the lateral walls of the corrugation.

According to one embodiment, the retaining unit or each retaining unit includes a protrusion that can extend longitudinally into the pleats of the plate in the attached state of the retaining portion, wherein the reinforcing portion includes a receiving portion, It is opened at the height of the direction end surface and can receive the projection of the holding unit.

According to one embodiment, the protrusions of the retaining unit or each retaining unit comprise a thickened portion, and the thickened portion may act together with the longitudinal end surface of the reinforcement portion to stop the reinforcement portion in the longitudinal direction relative to the protrusion. have.

According to one embodiment, the thickened portion of the projection is forced into the receiving portion of the reinforcing portion to securely secure the reinforcing portion on the fixing portion by elastic deformation of the receiving portion and / or the thickened portion of the reinforcing portion . According to one embodiment, this type of forced engagement can be used to obtain the aforementioned fixed condition.

According to one embodiment, in order to limit the engagement of the projection with the receiving portion, the anchoring portion includes a stop unit that can act with the longitudinal end surface of the reinforcement portion.

According to one embodiment, a single structural element provides the aforementioned stationary unit and the above-mentioned positioning unit.

The receiving portion of the reinforcing portion can be manufactured in various ways. According to one embodiment, the receiving portion of the reinforcing portion includes a longitudinal groove that is hollow at the outer surface of the reinforcing portion designed to face the plate.

According to one embodiment, the attachment unit includes a head that can be attached to the outer surface of the plate by the elastic removal of the undercut of the plate at the height of the intersection of the wrinkles.

According to one embodiment, the anchoring portion includes a holding unit or a body to which each holding unit and at least one rod are connected, wherein at least one rod connects the head to the body while providing an empty space between the head and the body . This type of void space assists elastic deformation of the rod to absorb any form differences of the different intersections of the metal plate.

According to one embodiment, the rod has a tapered shape that narrows from the fuselage toward the head of the fixed portion. This type of configuration may facilitate insertion of the head into the undercut of the plate.

According to one embodiment, the assembly further comprises a second securing portion having an attachment unit and a retention unit, wherein the attachment unit is attached to the outer surface of the plate at the height of the second intersection of the pleats, And the retaining unit can cooperate with the second longitudinal end of the reinforcing portion to retain the reinforcing portion in the corrugation and the reinforcing portion can be in contact with the plate at a distance between the retaining units of the two retaining portions , The reinforcing portion is held on the plate between the two fastening portions by acting with the two retaining units.

According to one embodiment, the two fastening portions are manufactured in the same manner, which facilitates manufacturing and facilitates inventory management of the components of the assembly.

According to one embodiment, the reinforcing portion is constituted by a shaped body having a constant cross-section. This type of embodiment permits easy manufacture of reinforcing parts, in particular by means of an extrusion process of a suitable material. According to some embodiments, the reinforcing portions are made from materials such as metal, especially those made of aluminum, metal alloys, plastic materials, and especially made of polyether, polycarbonate, polyether imide, expanded polystyrene Or made from composite materials comprising fibers, such as glass fibers, especially bonded with a plastic resin.

According to one embodiment, the anchoring portions, reinforcement portions and metal plates of the above-mentioned assemblies are manufactured to be separated from each other so that they can be assembled together at certain stages of the impermeable wall construction designed to be used. Overall, the position of this step in the construction of the impermeable wall can be chosen, in particular, according to the organization of the place or logical limitations.

According to one embodiment, the present invention provides a method of making an impermeable wall structure comprising the steps of:

Providing an impermeable metal plate having a series of first parallel wrinkles and a series of second parallel wrinkles wherein the first parallel wrinkles intersect at a height of the second parallel wrinkles and the intersections, A step of supplying an impermeable plate projecting from the surface side;

Disposing a fixation portion including an attachment unit and a retention unit to attach the attachment unit to an outer surface of the plate opposite the inner surface at a height of one of the intersections; And

Disposing an elongated reinforcing portion in the corrugated compartment adjacent to the intersection on the outer surface of the plate such that the longitudinal end of the reinforcing portion cooperates with the retention unit.

This type of process can be used to pre-fabricate suitable impermeable wall structures, particularly in the production of pressure-resistant impermeable membranes. According to some embodiments, this type of method may further have one or more of the following features.

According to one embodiment, the method comprises the following steps:

Disposing a second securing portion having an attachment unit and a retaining unit to attach the attachment unit to the outer surface of the plate at a height of the second intersection adjacent the first intersection to which the first securing portion is attached;

Positioning the reinforcing portion in the pleated compartment extending between the two intersections, wherein the reinforcing portion comprises two lengthwise ends of the reinforcing portion and the two retaining units acting together to form a plate- Of the reinforcement portion.

According to an alternative embodiment, the method comprises:

And fixing the end of the reinforcing portion on the holding unit such that the reinforcing portion is retained on the plate only by the effect of the securing portion.

In this case, the reinforcing portion may be disposed in the pleated compartment extending between the edge of the plate and the intersection to which the fixture is attached, and may extend from the edge of the plate to allow it to engage in the pleats of the adjacent plate .

This type of method can be used to fix reinforcement parts to one or more or all of the corrugations of the metal plate, in particular according to the requirements for reinforcement of the plate.

According to one embodiment, the method includes the following steps.

Attaching the fastening portions comprising four units and an attachment unit for holding on the outer surface of the plate at the height of all the intersections of the plate in each case; And

In each case, by allowing the two retaining units of the two fastening portions attached to the height of the two intersections and the two longitudinal ends of the reinforcing portion to cooperate together to hold the reinforcing portions on the plate, And placing reinforcement parts in all of the pleated dividers extending between the two intersections.

According to one embodiment, the method further comprises the steps of:

Disposing reinforcing portions in all of the pleated dividers extending between the edges of the plate and the crossings adjacent the edges of the plate; And

Fixing the end of the reinforcing portion on the holding portion of the fixed portion attached at the height of the corresponding intersection in each case so that the reinforcing portion is retained on the plate only by the effect of the fixing portion and protrudes from the edge of the plate; . This type of measures can be taken along one or more or all of the edges of the plate in accordance with the requirements of the relevant application.

According to one embodiment, the present invention provides an impermeable adiabatic container disposed within a support structure, the container comprising an impermeable partition wall and an adiabatic partition wall designed to contact a product contained in the container, To-mount assembly as described above. This type of vessel may form part of a land storage facility, for example to store LNG, or it may be installed in a flotation structure, a coastal structure or a deep water structure, in particular a methane tanker, a flotation storage and re- A floating storage and re-gasification unit (FSRU), a floating production and transport storage unit (FPSO).

According to one embodiment, the vessel for transporting the cooled liquid product comprises a double hull and the above-mentioned vessels disposed in a double hull.

According to one embodiment, the present invention also provides a method for loading or unloading a ship of this type, wherein the cooling liquid product is discharged from the flotation storage or land storage facility through the insulation piping, Storage facility or land storage facility, from the vessel of the vessel.

According to one embodiment, the present invention provides a delivery system for a refrigerated liquid product, said system comprising: a vessel as described above, a vessel installed in the hull of a vessel for insulated storage piping and / , Pumps that transfer the flow of cooling liquid product through adiabatic piping from a floating storage facility or land storage facility, to a floating storage facility or land storage facility, to a vessel of a vessel or from a vessel of a vessel.

The underlying concept of the present invention is to provide a strengthening device for strengthening the corrugated metal impermeable membrane against the forces of pressure. A particular aspect of the present invention is to provide a strengthening device for strengthening the corrugated metal impermeable membrane against the forces of pressure. A particular aspect of the present invention is that it is easy to manufacture, easy to assemble into impermeable membranes, easy to adapt to impermeable membrane drains having wrinkles of different dimensions and / Based on the concept of providing a reinforcing device.

A particular aspect of the present invention is based on the concept of pre-fabricating a pressure-resistant wrinkle-resistant metal impermeable membrane. Certain aspects of the present invention are based on the concept of making impermeable wall structures of the type that are easy to combine and modular.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be better understood from the following description of a number of specific embodiments of the invention, given by way of non-limiting example only, with reference to the drawings, in which other objects, details, features and advantages become more apparent will be.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a corrugated metal plate that can be used to make an impermeable wall.
Fig. 2 is a perspective view of a cross-shaped fastening portion which can be attached to the outer surface of the plate of Fig. 1 at the intersection height of the pleats to retain the reinforcing portions.
Figure 3 is a perspective view of a reinforcing portion suitable for reinforcing the high corrugation of the plate of Figure 1;
Fig. 4 is a perspective view of a reinforced portion suitable for reinforcing the low corrugation of the plate of Fig. 1;
Fig. 5 is a partial cross-sectional view of the plate of Fig. 1 along line VV and shows the securing portion of Fig. 2 attached to the plate by resiliently wedging within the undercut of the plate at the height of the intersection.
Fig. 6 is a partial perspective view of the outer surface of the plate of Fig. 1 with a reinforcing portion held in a wrinkle by two fastening portions acting together with two ends. Fig.
Figure 7 is an enlarged detail VII of Figure 6.
Figure 8 is a partial plan view of the marginal area of the outer surface of the plate of Figure 1 with the reinforcing portion held in the pleat by the anchoring portion acting together with one of the ends.
Fig. 9 is a schematic view of the area of joining between the two plates of Fig. 1, shown in cross-section at an intermediate plane of the high corrugation of the plates, with the reinforcing portion being held in place by a fastening portion which cooperates with one of the ends It is kept in wrinkles.
FIG. 10 is a schematic cross-sectional view of a methane tanker vessel containing an impermeable membrane made from the plate of FIG. 1 and a terminal for loading / unloading the vessel.
Fig. 11 is a cross-sectional view in ¼ section of the head for fixing the fixing portion of Fig. 2 attached to the undercut of the plate of Fig. 1;
Fig. 12 is a view similar to Fig. 11, along an angle of view rotated to approximately 90 [deg.].
Figure 13 is a plan view of a reinforcing portion held in a crease by two fastening portions cooperating with two ends.
Fig. 14 is a view of the outer surface of the plate of Fig. 1, in which the reinforcing parts are held in all pleats by two fixing parts, which in each case act together with the two ends of the reinforcing part.

1, the corrugated metal plate 1 comprises a series of so-called low and parallel pleats 5 on its inner surface 2 and a series of so-called high and parallel pleats 6 And each direction is a right angle. In this case, "high" and "low" are relative meaning that a series of first pleats 5 have a lower height than a series of second pleats 6. [ At the height of the intersection 3 between the low and high corrugations 5 and 6 the low corrugations 5 are discontinuous and the low corrugations are interrupted by the folds 4, The upper ridge 7 of the high corrugation 6 is extended by the protrusion on the upper ridge 8 of the wrinkle 5.

At the height of the intersection 3 the upper ridges 7 of the high corrugations 6 comprise a pair of concave corrugations 9 with the concave corrugations facing the inner surface and the concave corrugations having a low corrugation 5 on both sides of the upper ridge portion 8. The high corrugations 6 additionally include recessed indentations 10 at the height of the respective intersection 3 on both sides of the folded portion 4. The concave indent 10 has a concave towards the inner surface 2 of the plate 1 and has a double curvature. The first curvature shown in FIG. 1 is around an axis that is perpendicular to the mean plane of the plate 1. The second curvature shown in Fig. 5 lies around an axis perpendicular to the plane of Fig. 5, the recessed indent 10 causes the folded portion 4 to widen in the direction of the base portion 12 of the folded portion 4, that is, it causes an undercut shape. This configuration may be used in some embodiments to resiliently wedge an anchorage part to the base of the fold 4.

For example, the low corrugation 5 has a height formed between the surface of the plate 1 and the upper ridge 8, which is approximately 36 mm and also has a width at the base of the corrugation 5, Is approximately 53 mm. For example, the high corrugations 6 have a height formed between the upper ridge 7 and the surface of the plate 1, the height of which is approximately 54.5 mm and also have a width at the base of the corrugation 6, The width is approximately 77 mm.

For example, the plate 1 is made of stainless steel or aluminum sheet, which has a thickness of about 1.2 mm and can be formed by stamping. Other metals or alloys and other thicknesses may be used, recognizing that thickening of the plate 1 causes an increase in cost and generally increases the firmness of the wrinkles. In the case of the application of impermeable membranes for cold liquids, certain flexibility of the plate 1 is required to allow for heat shrinkage without the risk of rupturing the impermeability.

The corrugated metal plate 1 is suitable for forming an impermeable membrane of a container having a large capacity, for example, suitable for forming an impermeable membrane of a container for a cold liquid product. However, the hydrostatic pressure exerted by the product contained in the container, such as, for example, a liquid gas, can substantially plastically deform the wrinkles, especially the side of the high corrugations 6 spaced from the intersections 3 Can cause compression of directional surfaces. In this type of vessel integrated in the bearing structure of the vessel, the swelling motion of the liquid gas against the lateral walls of the vessel during transport may cause a dynamic pressure surge, so that the wrinkles are subject to substantial plastic deformation do. This type of deformation can lead to deterioration of the mechanical strength of the plates and, for example, when the liquid methane is received, the plates undergo substantial thermal condensation, resulting in poor impermeability of the plates, In areas of welding at the junction between the different plates. A description of reinforcement portions designed to inhibit or limit this type of plastic deformation is provided below.

Referring to Fig. 3, the reinforcing portion 15 designed to be inserted into the high corrugation 6 on the outside surface side of the plate 1 is shown. The reinforcing portion 15 has a profiled geometry having a constant cross-section, which makes it possible to easily obtain a portion having a required length by cutting a profile body having a long length. This type of profile body can be manufactured especially by extrusion.

The portion 15 has a thin top wall 16 in the form of a semi-elliptical dome, which is adapted to the shape of the substantially high corrugations 6 and is designed to face the plate 1. If the reinforcing portion 15 is made of a material having a different thermal performance from that of the plate 1, then in order to efficiently support the corrugation wall at an operating temperature such as, for example, -162 DEG C for LNG, Should be considered.

The lower wall 17 of the part 15 designed to face the plate 1 can be supported on the support surface, for example in the case of a container for LNG, formed by the inner surface of a thermal insulation barrier , It has a generally flat shape. The groove 18 having a rectangular cross section is hollow in the longitudinal direction in the lower wall 17 and in the middle of the lower wall.

Between the walls 16 and 17 the part 15 is hollow and contains only microscopic ribs i.e. two inclined ribs 19 and a short rib 21, 19 extend between the point substantially midway along the height of the opposing portion of the wall 16 and the connecting angle 20 of the walls 16, 17, intersecting the height of the core 22 and in each case , The short rib 21 connects the core 22 to the base of the groove 18.

Since the surface area of the lower wrinkle 5 is smaller than the surface area of the higher wrinkle 6, the lower wrinkle 5 is more resistant to pressure. However, it may be advantageous to strengthen it by strengthening portions. Referring to Fig. 4, a reinforcing portion 115 is shown which is designed to be inserted into the lower corrugation 5 on the outer surface side of the plate 1. Fig. Elements that are the same or similar to those of the reinforcement portion 15 are denoted by the same reference numerals, In addition to having a small dimension, reinforcing portion 115 is substantially different from portion 15 in that there is no flat bottom wall. The portion 115 is opened between the two angles 120 and the groove 118 is formed beneath the core 122 by two longitudinal ribs 121 and the longitudinal ribs are formed by the portions 115 ), Extending in both sides of the mid-symmetry plane of the part.

2, a cross-shaped fastening portion 30 may be used to fasten the reinforcing portions 15, 115 in the corrugations 6, 5 of the plate 1.

The fixing portion 30 includes a central body 31 of a hollow cylinder cross-sectional shape having a generally rectangular cross section, as will be described later, the four outer surfaces of which are substantially perpendicular to the axis of the body 31 Respectively, to cooperate with the reinforcing portion to contribute to maintaining or maintaining the reinforcing portion in the corresponding corrugations of the plate 1. [0034]

The two rods 32 are connected to the two shorter sides 37 of the body 31 and extend from the upper surface of the body 31 and are slightly tilted towards the axis of the body To form an angle. The rods 32 have a beveled shape in the direction of the end remote from the body 31. The ends of the rods 32 are connected by a rod 33 extending at a right angle to the axis of the body 31 and have a wider cross section than the ends of the rods 32, . The rod 32 connects the head 33 to the body while providing an empty space 39 between the head and the body.

The rod 33 forms a fixed head which can be resiliently wedged in the undercut of the fold 4 at the height of the intersection 3 of the plate 1 as previously described. For this purpose, the rod 33 is dimensioned to have a slightly wider cross section than the narrowest part of the fold 4.

The fixing portion 30 can be manufactured by molding a plastic resin.

Fig. 5 shows the fastening portion 30 attached to the plate 1. Fig. To make this attachment, a rod 33 is applied to the entry portion 11 of the folded portion 4, the rods 32 are perpendicular to the plate 1, The fixing portion 30 is initially configured so as to be disposed at right angles to the four corrugate compartments meeting at the height of the fixing portion 3, respectively. Then the force is applied to the fixed part 30 at right angles to the direction of the plate 1 and is manually applied for example so that the folded part 4 is made so that the rod 33 is received in the base part 12, And resiliently restrains the narrow portions and the entry portions 11 of the two inclined surfaces 34, where they are firmly held by the elastic restoration of the two inclined surfaces 34. In the attached state, the axis of the moving body 31 is substantially perpendicular to the mean plane of the plate 1. [

As best seen in Figures 11 and 12, the rod 33 has a midway slotted cross-section by a slot 38 extending longitudinally between the two ends of the rod 33, The rods 32 are connected. In plan view, the shape of the slot 38 may be rhombic, or it may be another elongated shape. The slot 38 facilitates elastic compression of the rod 33 when inserted into the narrowed portion of the fold 4. The two inclined surfaces 34 located on the sides of the rod 33 that slide against the inner surface of the fold 4 during the insertion movement facilitate its elastic compression. The rod 33 can therefore be resiliently deformed to conform to the exact shape of the interior of the folded portion 4 because of the manufacturing tolerances of the plates 1, (3) to the other intersection. As a result, a single fixing part 30 is designed to be used at all intersections 3 of the same type of corrugated plate as the plate 1, and other types of such other types having a slight dispersion in manufacturing dimensions Plates are also designed to be used.

As best seen in Figures 6 and 8, in the state attached to the plate 1, the four arms of the fastening portion 30 extend into four pleat compartments, and the pleat compartments extend from the intersection 3 ). These arms and their function will now be described in more detail.

2, the two long arms 40 are connected to the short side portions 37 of the body 31 and the two short arms 140 are connected to the long side portions 36 of the body 31 do. The arms 40 engage the two compartments of the high corrugation 6 adjacent to the intersection 3 where the fastening portion 30 is attached. The arms 140 engage the two compartments of the corresponding lower corrugations 5.

The arm 40 has a generally rectangular cross section and has a slightly inclined overall direction with respect to a plane perpendicular to the axis of the body 31, that is, inclined with respect to the mean plane of the plate 1 in the attached state, The inclination is the direction opposite to the rods 32. [ The arm 40 terminates in a positioning plate 41 whose plate is substantially parallel to the axis of the body 31 and which plate 41 is located on the side of the portion 30 And has a position perpendicular to the axis of the high corrugation 6 in the attached state.

The width and shape of the lateral sides 42 of the plate 41 are substantially adapted to the inner cross section of the high corrugation 6 with a slight play so that the lateral sides 42, (42) can cooperate with the inner surface of the high corrugations (6) to stabilize the plate (41) at a position perpendicular to the axis of the high corrugations (6). Moreover, the plate 41, which gradually widens downwardly when the fastening portion 30 is in position, to guide the arm 40 easily towards a substantially central position inside the high corrugation 6, May slip one or each of the lateral sides 42 relative to the fillet 13 at the base of the high corrugation 6.

The retaining projection 44 is connected to the front surface 43 of the plate 41 and is connected at a laterally centered position with respect to the plate 41 and adjacent the lower edge 45 of the plate 41 That is, to the point where the plate 41 and the arm 40 are connected. The retaining projection 44 extends perpendicularly to the axis of the body 31, that is, extends parallel to the axis of the high corrugation 6 in the attached state of the fixing portion 30. [ The retaining projection 44 has a generally rectangular cross-section with a width slightly less than the groove 18 to allow sliding in the groove 18, and exceptionally at the height of the wide part forming the cylindrical pin 46 Not like that.

The portion 48 of the projection 44 that lies past the pin 46 in the attached state of the fastening portion 30 as shown in Figure 6 and shown in detail in Figure 7 has a direction perpendicular to the plate 1 Can be slidably engaged with the entry of the groove 18 of the reinforcing portion 15 to stop the portion 15 at the end of the reinforcing portion 15. The portion of the projection 48 may be slightly beveled to facilitate such engagement. In this co-operation mode between the reinforcing portion 15 and the fixing portion 30, known as the support mode, if the second end of the reinforcing portion 15 is not retained, (15) can be tilted with respect to the retaining projection (44). This cooperative mode assumes that the fixed portion 30 is used at each end of the portion 15, or similar means, as can be seen in Fig. 6 where the second fixed portion 130 is sketched .

In order to keep the reinforcing portion 15 in the compartment 14 of the high corrugation 6 between the two intersections 3 the procedure is as follows: And is installed at the intersection. The reinforcing portion 15 is then installed between the intersection and the second intersection, while engaging the portion of the projection 48 of the first anchor portion with the end of the groove 18. [ Thereafter, by engaging the portion of the projection 48 of the second fixing portion with the other end of the groove 18, the second fixing portion 130 is provided at the second intersection. Finally, two identical fastening portions 30, 130 are attached in each of the two intersecting portions 3, so that each has an arm 40, and the arms are arranged in opposite directions at the respective end portions of the compartment 14 Lt; / RTI > The reinforcing portion 15 having a length equal to or shorter than the distance separating the two fins 46 of the two arms 40 facing each other is located at the position shown in Figure 6 in the interior of the compartment 14 maintain. In this position, the two ends of the reinforcing portion 15 are respectively supported by the portions of the projection 48 of the two fixing portions 30, 130 so that the reinforcing portion 15 extends in a direction perpendicular to the plate 1 It is held on the plate 1 and can not be tilted. Furthermore, the pins 46 provide stoppages in each direction, the stoppings being provided at the entry of the grooves 18, in order to stop the reinforcement 15 in the longitudinal direction of the high corrugations 6, Lt; RTI ID = 0.0 > 49 < / RTI > Thus, once in place, the reinforcing portion 15 is held firmly on the plate 1, and the plate 1 thus installed is free to be handled arbitrarily, with the reinforcing portion 15 not being separated , Displaced or tilted.

Referring to Fig. 8, the arm 40 provides another possible mode of cooperation with the reinforcing portion 15. In this cooperative mode, known as a securing mode, the reinforcing portion 15 is forced onto the projection 44 until the pin 46 is resiliently wedged into the groove 18, narrow. To facilitate elastic compression of the pin 46, the pin 46 may be made having an internal recess 50, the recess having a cylindrical shape, for example, as seen in FIG. Preferably, the reinforcing portion 15 is pushed until the longitudinal end surface 49 is supported against the front surface 43 of the plate 41, which is precisely aligned with respect to the fixing portion 30, 1). ≪ / RTI >

In the fixed mode, the reinforcing portion 15 is held firmly on the plate 1 only by the effect of the fixing portion 30. [ 8, the fixed mode can be used to hold the reinforcing portion 15 in the end compartment 51 of the high corrugation 6, wherein the high corrugation is formed at the edge 52 of the plate 1 ) And the intersection (3) adjacent the edge. Preferably the length of the reinforcing portion 15 is greater than that of the compartment 51 so as to extend from the edge of the plate 1 and engage under the second adjacent plate, . The reinforcing portion 15 can be put in place at this position, for example by a sharp tap with a hand on the end of the reinforcing portion 15 extending from the plate 1. The reinforcing part 15 is axially guided inside the corrugation 6 by the support of its upper wall 16 with respect to the plate 1 inside the corrugation 6, The lateral sides 42 of the plate 41 relative to the plate 6 are supported by the retaining projections 44 at a position laterally centered within the corrugations 6 at a height corresponding to the height of the grooves 18. [ , The above-mentioned operation of positioning is simplified. The inclined shape of the portion of the projection 48 facilitates the guiding of the retaining projection 44 at the entry of the groove 18.

The description given above with respect to the arm 40 of the fastening portion 30 applies in the same way to another arm 40 which extends in the opposite direction. It is also applied to an arm 140 that performs the same functions as the arm 40, except that the arms 140 are about the lower corrugation 5 and the reinforcing portion 115. In the figures, the components of the arms 140 are denoted as reference numerals by adding 100 to the components of the arms 40, which will not be described again.

Thus, the anchoring portion 30 can work with two reinforcement portions 15 and two reinforcement portions 115, either alone or in combination with four adjacent reinforcement portions, The four wrinkle compartments are at the height of the intersection 3 to which the fastening portion 30 is attached. For the plate 1 having the same and regularly spaced high corrugations 6 and the same and regularly spaced low corrugations 5, a pressure build-up is applied to all the corrugated compartments of the plate 1 , Which is made up of only three sets of parts, that is to say the same fixing parts 30 which are identical to one another and which are designed for the distance between two lower corrugations 5, And reinforcement parts 15 having the same length and designed for the distance between the two high corrugations 6,

Referring now to Fig. 14, a description is now provided of a possible method for installing reinforcement portions in all pleats on the outer surface of the plate 1. Fig. To perform this method, the plate 1 is rounded and supported against a support, such as a wall, for example, so that its outer surface can be seen, the high corrugations 6 are substantially horizontal and the low corrugations 5 ) Is almost vertical. The alphabetical order of the reference characters given in Fig. 14 indicates the mounting order of the parts. In letter A, the first anchoring portion is disposed at the intersection located at the level of the lower left corner of the plate 1. Next, the reinforcing portion 15 and the fixing portion 30 are arranged alternately in sequence along the horizontal high wrinkles (letters B to Q), so that the reinforcing portions, in each case with two adjacent fixing portions, in support mode. The reinforcing portions 115 are disposed in the low wrinkle compartments juxtaposed with the high wrinkles that have just been installed next, so that in each case the lower end of the reinforcing portion 115 is in the holding mode (letter R) To be able to cooperate with the arm (140) This process ensures that each additional fixed portion 30 maintains the strengthening portion 115 added to the step R in the support mode (letters S, T, U, V, etc.) Is performed along the high wrinkles in the same manner as for wrinkles.

It will also be appreciated that only a portion of the pleats or only a portion of the pleat compartments of the plate 1 may be provided.

In the state shown in Fig. 14, the reinforcing portions are not provided in the end dividing portions 51 of the high corrugations 6 and the end portion dividing portions 83 of the low corrugations 5. Beginning in this state, the method described with reference to Fig. 8 can be used to install reinforcing sections in the end sections located along a plurality of edges or one edge of the plate 1. [

The parts of the three sets used in this method can be supplied as a reinforcing device in a kit form for the metal plates of the same type as the plate 1. This type of strengthening device can be quickly and easily mounted on the plate 1 by applying a relatively suitable manual force. This type of reinforcement kit is suitable for corrugated metal plates having the number and dimensions of the corrugations different from those shown in FIG.

Moreover, if the corrugations of the corrugated metal plate to be installed are irregularly distributed, it is easy to manufacture a plurality of sets of reinforcing sections 15 or 115 having different lengths, since they are cut from a profile having a long length, It can be.

The plate 1 provided with the reinforcing portions 15 and / or 115 held by the fixing portions 30 can be used as a modularized wall structure by assembling a plurality of these structures to form a pressure- For producing a membrane (impermeable membrane). The interface between two of these structures can be fabricated according to FIG.

Figure 9 schematically shows the interface between two pleated metal plates 54,55 similar to the plate 1 in Figure 1, which is juxtaposed so that the individual pleats are aligned. Figure 9 is a cross-sectional view along the middle plane of the high corrugation 6 extending through the two plates 54,55. Each of the two plates 54,55 is provided with the reinforcing device described above, which is intended for the reinforcement of all the pleats of the plates or for the reinforcement of the sub-assemblies thereof. 9, these strengthening devices are marked in a very partial fashion by separate fastening portions 30 and reinforcing portions 15, wherein the individual fastening portions 30 are provided with a high wrinkle 6 and the reinforcing portion 15 is attached to each of the high folds 6 (FIG. 6) under the plate 55 and partially below the plate 55 As shown in Fig. The strengthening portion 15 thus strengthens the high corrugation 6 at the level of the interface between the two plates 54,55.

To place the plates 54,55 in place, proceed as follows. A plate 54 already equipped with a tempering device is initially placed on the support surface 60, on which the impermeable membrane is mounted. For example, the support surface 60 may be constituted by a top plate of a thermal insulation barrier of a known type. The plate 54 carries the reinforced portion 15 which is secured to the fixed portion 30 so as to extend a certain distance from the edge 52 of the plate 54.

The second plate 55 already equipped with the strengthening device is brought into contact with the plate 54 which is to be laid over the plate 54 by bringing it over the support surface 60 adjacent to the plate 54 in parallel to the plate 54 Is at the correct height. In the compartment of the corrugation 57 located close to the edge 52 of the plate 55 the high corrugation 6 of the plate 55 does not include the reinforcing portion. The marginal portion of the plate 55 is spaced along the marginal portion 52 of the plate 54 while the plate 55 is in the direction of the arrow 59, The corrugated partition 57 of the fastener 55 engages on the reinforcing portion 15 and the end of the protrusion 44 of the fastening portion 30 attached to the plate 55 is inserted into the insertion play 58. [ As opposed to the longitudinal end surface 49 of the reinforcing portion 15, without interference.

This insertion play 58 may be present without the need to create a reinforcing portion 15 having different dimensions than the other reinforcing portions used within the plates 54,55. If all the low corrugations 5 in the interface between the two plates 54,55 and in each of the plates 54,55 have finally reached the end of the plate 54,55 considering the straddle of them, If the plates 54,55 have dimensions such that they are equidistant, the reinforcement portion 15 having a length designed for such regular spacing can be placed on the two retention protrusions 44 in the support mode shown in Fig. 6 Both can be supported and can be fixed to the single retention projection 44 by using a flow (play 58) for the other retention projection 44 in the fixed mode shown in Figs.

This characteristic is due to the specific dimension setting of the parts to be described in detail with reference to Fig. Figure 13 shows the reinforcing portion 15 held in the high corrugation 6 between the two fastening portions 30. [ The indication of the plate 1 is completely omitted for the sake of clarity. The displayed dimensions indicate the following:

* P: the distance between the centers of two consecutive intersections along a high wrinkle;

* d: length between the end of the arm 40 and the center of the fastening portion 30 at the level of the surface 43;

b: length of the projection 44 from the surface 43;

* a: the distance between the surface 43 and the projection 46;

* l: Length of reinforcement section (15).

If Y = p- (l + 2d), then these dimensions preferably demonstrate the following equation.

Y / 2 < b < Y (Equation 1)

Y-b < a < Y / 2 (Equation 2)

Thus, the flow (play, 58) with amplitude (Y-b) is held in the position in Fig. In the position of Figure 13, the reinforcing portion 15 is shown centered between the two fixing portions 30 in the support mode. The dimension c indicating the length of the portion of the projection 48 inserted in the groove 18 is equivalent to the following equation.

c = b-Y / 2 (Equation 4).

Finally, the two plates 54,55 can be welded in a non-transmissive manner at the level of the margin portion 56. The combination of the plurality of wall structures just described with reference to Fig. 9 can be made similar at the level of all the high corrugations 6 of the plates 54,55. Moreover, similar measures can be taken in the direction of the low crease 5.

Thus, by combining multiple square wall structures on a flat support surface in this manner, an impermeable membrane with a large surface area can be fabricated. The corrugated metal plates may be cut according to other forms and may be installed in the same manner. The impermeable membrane so produced can be secured to the support surface 60 in any suitable manner.

In the following description, the retaining projection 44 provides two modes of cooperation between the portions 30,15, i.e., the cooperative mode of the support type shown in Figure 6, Type cooperative mode. As a variant, these two cooperative modes can be obtained by two parts which are separate from the fixed part. Likewise, the plate 41 provides a unit for selecting the position of the arm 40 in the high corrugation 6 and a stopping unit for the reinforcing part 15 in the fixed state. Alternatively, these two functions may be performed by separate elements.

The above described techniques for the production of impermeable membranes can be used to construct a first impermeable membrane of an LNG tank in a land equipment or floating structure, for example as a methane tanker or the like, Type tanks. &Lt; RTI ID = 0.0 &gt;

Referring to FIG. 10, a cross section of a methane tanker 70 shows an impermeable heat insulating container 71 having a prism shape as a whole, which is mounted on the ship's double hull 72. The wall of the vessel 71 comprises a first impermeable bulkhead designed to contact the LNG contained in the vessel, a second impervious bulkhead disposed between the ship's double hull 72 and the first impervious bulkhead, Two insulating bulkheads are disposed between the first impervious bulkhead and the second impervious bulkhead, and between the second impervious bulkhead and the double hull 72, respectively.

A loading / unloading piping 73 disposed on the upper deck of the vessel is connected to the vessel 71 by a suitable connector in order to deliver the LNG cargo from the vessel 71 or to the vessel 71 May be connected to a maritime terminal or a port terminal.

Fig. 10 shows an example of a marine terminal including a loading and unloading unit 75, a seabed pipe 76 and a land equipment 77. Fig. The loading and unloading unit 75 is a fixed offshore installation, which includes a moving arm 74 and a tower 78 that supports the moving arm 74. The transfer arm 74 supports a bundle of insulating flexible tubes 79 that can be connected to the loading / unloading tubing 73. The adjustable transfer arm 74 is adapted to the methane tanks of all the gauges. A connecting pipe, not shown, extends inside the tower 78. The loading and unloading unit 75 allows loading and unloading of the tanker 70 from the onshore facility 77 to the onshore facility. The onshore installation includes a liquefied gas storage vessel 80 and connection pipes 81 which are connected to the loading or unloading unit 75 by a subsea pipe 76. The underside pipe 76 allows the liquefied gas to be conveyed between the land equipment 77 and the loading or unloading unit 75 over a long distance, for example 5 km, Thereby allowing the methane tanker 70 to be maintained at a great distance.

Pumps installed on the ship 70 and / or pumps installed on the land equipment 77 and / or pumps installed on the loading and unloading unit 75 are used to generate the pressure necessary for the transfer of the liquefied gas .

Although the present invention has been described in connection with a number of specific embodiments, it is to be understood that the invention is not limited to the specific embodiments thereof, Will be.

The phrases "comprising ", " comprising ", or" comprising "and their uses do not exclude the presence of steps or elements different from those shown in the claims. The use of an indefinite article for an element or step does not exclude the presence of a plurality of such elements or steps unless otherwise described. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

1. Corrugated metal plate 2. Inner surface
3. Intersection 4. Folding
5. 6. Wrinkle 10. Concave indentation

Claims (27)

A ready-to-mount assembly for making an impermeable wall structure, said assembly comprising an impermeable metal plate (1); And an elongated reinforcing portion (15,115)
The impermeable metal plate (1) has a series of first parallel pleats (5) and a series of second parallel pleats (6), wherein the first parallel pleats are at a height of the intersection (3) And the corrugations protrude from the side of the inner surface 2 of the plate,
The elongated reinforcing portions 15,115 are disposed in one of the pleats 6,5 on the outer surface of the plate opposite the inner surface to increase the resistance to pressure of the plate,
Characterized in that the assembly comprises a fixing part (30), the fixing part (30) comprising:
An attachment unit (32, 33) attached to an outer surface of an impermeable metal plate (1), characterized in that it comprises a first wrinkle belonging to a series of first parallel wrinkles (5) and a second wrinkle belonging to a series of second parallel wrinkles Attaching units (32, 33) attached to the impermeable metal plate at a height of the intersection (3) between the second corrugations;
(44), which cooperates with the longitudinal ends of the elongated reinforcing sections (15, 115) to hold the elongated reinforcing sections at one of the folds (6, 5) intersecting at the height of the intersection and,
In order to hold the reinforcing parts in the plurality of pleated partitions at the height of the intersection 3 with the fixing part attached, the fixing part comprises a plurality of holding units 44 acting together with the individual ends of the plurality of reinforcing parts / RTI &gt; The method according to claim 1,
Wherein the retaining unit (44) cooperates with the ends of the reinforcing portions (15,115) in a state of support in which the retaining unit stops the end of the reinforcing portion in a direction perpendicular to the plate. The method according to claim 1,
Wherein the retaining unit cooperates with the end of the reinforcement portion in a fixed state in which the retaining unit fixes the reinforcement portion (15,115) on the fixture portion (30) so that the reinforcement portion is retained on the plate only by the fixture portion. 4. The method according to any one of claims 1 to 3,
The retaining unit 44 of the fixing part is disposed at the end of the arm 40 connected to the attaching unit and the arm is formed so that in the attached state of the fixing part 30, (6). &Lt; / RTI &gt; 5. The method of claim 4,
The arm includes a positioning unit 41 having an outline aligned with the inner cross-section of the corrugation of the plate, the positioning unit comprising a plurality of corrugations 6 for positioning the arm in the corrugation, And acts with the plate at the height of the lateral walls. 4. The method according to any one of claims 1 to 3,
The retaining unit comprises protrusions (44, 48) extending in the longitudinal direction in the corrugations of the plate, in the attached state of the fixing part, the reinforcing part comprising a receiving part (18) An opening at the height of the end surface and receiving the projection of the holding unit, The method according to claim 6,
The protrusion of the retaining unit includes a portion 46 thicker than the receiving portion 18 and in order to stop the reinforcing portion 15 in the longitudinal direction with respect to the protrusion 44, Acting in conjunction with the end surface (49). The method according to claim 6,
The protrusion of the retaining unit includes a portion 46 that is thicker than the receiving portion 18 and the thickened portion 46 of the protrusion can be used to secure the reinforcing portion 15 on the fastening portion 30. [ Is forced into the receiving portion (18) of the reinforcing portion by elastic deformation of the receiving portion (18) of the reinforcing portion and / or the portion (46) made thicker. The method according to claim 6,
The fastening portion includes a stop unit 43 and the stop unit acts with the longitudinal end surface 49 of the reinforcement portion to limit engagement of the protrusion 44 in the receptacle. The method according to claim 6,
Wherein the receiving portion of the reinforcing portion comprises a longitudinal groove and the longitudinal groove is hollowed in an outer surface (17) of the reinforcing portion facing the plate. 4. The method according to any one of claims 1 to 3,
The attachment unit comprises a head 33 which is attached to the outer surface of the plate 1 by the elastic removal of the undercut 4 of the plate at the level of the intersection 3 of the wrinkles. . 12. The method of claim 11,
The fixed portion includes a moving body 31 and a rod 32. A retention unit 44 or each holding unit 44 is connected to the moving body and the rod 32 is connected to the rod- And connects the head (33) to the body while providing an empty space (39). 13. The method of claim 12,
Wherein the rod (32) has a beveled shape that narrows from the body (31) toward the head (33) of the fixed part. 4. The method according to any one of claims 1 to 3,
The assembly further includes a second fastening portion 130 having attachment units 32,33 and a retaining unit 44 of the second fastening portion 130 and the attachment units 32,33 comprise reinforcing portions 15,15, Is attached to the outer surface of the plate at the height of the second intersection 3 of the corrugation that must be retained within the retaining unit 44 of the second securing portion 130, And the reinforcing portion has a length corresponding to the distance between the holding units 44 of the two fixing portions 30, 130 in the attached state to the plate, Wherein the first and second anchoring members act together with the retaining units to remain on the plate between the two anchoring portions. 4. The method according to any one of claims 1 to 3,
Wherein the reinforcing portion (15,115) is profiled and configured by a constant cross-section. Providing an impermeable metal plate (1) having a series of first parallel wrinkles (5) and a series of second parallel wrinkles (6), wherein the first parallel wrinkles intersect the second parallel wrinkles , Wherein the pleats project from the inner surface side of the plate;
The placement of the fastening portions 30 including the attachment units 32,33 and the plurality of holding units 44 so as to attach the attachment unit to the outer surface of the plate at the height of one of the intersections, ;
Disposing a plurality of elongated reinforcing portions (15) in a plurality of pleat compartments intersecting at an intersection on an outer surface of the plate; And
Retaining each of the reinforcing portions (15) in one of the individual corrugating compartments by acting on one of the individual holding units (44) of the fixing portion (30) at the longitudinal end of the reinforcing portion &Lt; / RTI &gt; 17. The method of claim 16,
The attachment unit and the second holding unit are attached to the outer surface of the plate at the height of the second intersection 3 adjacent to the first intersection at which the first fixing part 30 is attached, Further comprising disposing the securing portion (130);
One of the reinforcing portions is disposed in the pleated dividing portion 14 extending between the two intersections and is also provided with two longitudinal ends of the reinforcing portion 15 and a first fixing portion 30, Wherein two holding units (44), each belonging to a portion (130), are held together on the plate (1) between two fixed portions. 17. The method of claim 16,
Further comprising the step of securing one end of the reinforcing portions (15) to the retaining unit (44) so that the reinforcing portion is retained on the plate only by the securing portion (30). 19. The method of claim 18,
The reinforcing portion 15 is disposed within the pleated dividing portion 51 extending between the crossing portion 3 to which the fixing portion is attached and the edge 52 of the plate, Wherein the at least one non-permeable wall structure comprises a plurality of openings. 17. The method of claim 16,
Attaching the holding parts (30) with four holding units (44) and an attaching unit on the outer surface of the plate at the height of all the intersections (3) of the plate (1); And
By allowing the two retaining units 44 of the two fastening portions attached to the height of the two intersections 3 to cooperate with the two longitudinal ends of the reinforcement portion to hold the reinforcement portions on the plate, Further comprising disposing reinforcing portions (15, 115) in all of the pleated dividers extending between the openings. 21. The method of claim 20,
Disposing reinforcing portions (15, 115) in all pleat compartments extending between the edge (52) of the plate and the intersection (3) adjacent the edge of the plate; And
Securing the end of the reinforcing portion on the holding portion 44 of the fixed portion attached at the height of the corresponding intersection so that the reinforcing portion is retained on the plate only by the securing portion and protruding from the edge 52 of the plate; &Lt; / RTI &gt; 1. An impermeable, heat-insulating container (71) disposed in a support structure, the container comprising an impermeable bulkhead and an insulating bulkhead in contact with the product contained in the container, wherein the impermeable bulkhead is in any one of claims 1 to 3 Gt; A &lt; / RTI &gt; impervious &lt; RTI ID = 0.0 &gt; heat-insulating &lt; / RTI &gt; container. A ship as a cooling liquid product carrying vessel (70) comprising a double hull (72) and a container (71) according to claim 22 disposed in said double hull. A method of using a vessel (70) according to claim 23 for loading and unloading a cooling liquid product, wherein the cooling liquid product is passed through the insulation piping (73, 79, 76, 81) Or transported from the land storage facility 77 to the vessel of the vessel 71 or from the vessel 71 of the vessel to the floating storage facility or land storage facility 77. A delivery system for a cooling liquid product comprising a vessel (70) according to claim 23, a vessel (71) installed in the hull of the vessel, a heat insulation pipe (73, 79, 76,81) and conveying the flow of cooling liquid product from the flotation storage facility or land storage facility to vessel vessel, or vessel vessel 71 to flotation storage facility or land storage facility 77 via insulated piping Wherein the pump comprises a pump. delete delete

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