DE3309395A1 - LARGE SPACE STORAGE - Google Patents

Description

Λ-

Ishikawajima-Harima Jukogyo K.K. 22 717

No. 2-1, 2-chorne, Ote-machi
Chi yoda-ku
Tokyo-to / Japan

Large capacity storage container

Description
The invention relates to a large-capacity storage container.

Different types of large-capacity storage containers have become known, of which the multiple spheroid container and the in Membrane storage containers embedded in the floor are widely used have found. To explain the state of the art, on which the invention is based, reference is made to FIGS. Of these shows

Fig. 1 partially. A view., Partially a section of a multiple spheroid storage container with large volume;

Fig. 2 is a partial section of an embedded in the ground Storage container for liquefied gas with lower Temperature (hereinafter referred to as low-temperature liquid gas designated).

copy "

In the container of Fig. 1, pins are a roof and a floor b provided with many nodes c and d. To a bulging To prevent the roof and corner areas from buckling or buckling, they are fitted with trusses or trusses. Additionally there are many wire ropes g available in order to prevent the storage container from expanding even under high internal pressure, which establish a connection between roof a and floor b.

However, the storage container described above has run out the following reasons or disadvantages do not result in the storage of liquid gas with extremely low temperature used. First, the container not only has a complicated shape, but it is also of a complicated construction, hence the need for a large amount of material, i.e. the container also becomes very expensive. Second, will when liquid gas is stored at an extremely low temperature in such a container, due to heat absorption Stresses concentrated at the nodes d of the soil b, which results in considerable damage to the floor b.

For the storage of low-temperature liquefied gas one has to the extent that other storage containers are used in different designs, which are generally divided into two groups can, namely on the one hand the double-walled storage containers erected on the ground and on the other hand those embedded in the ground Membrane storage containers, the latter being the double-walled containers from the point of view of safety are considering. ., .._.

Fig. 2 shows one embedded in the earth Membrane storage container in which a side wall h made of concrete is led down so far that it passes through a layer of groundwater i extends into an impermeable layer j.

BAD ORlGlNAl. COPY

A concrete floor slab 1 is below the water table k arranged. The bottom plate 1 and the inner surfaces of the side walls h are with the interposition of thermal insulation η lined with membranes m, so that liquid gas can be stored in the space enclosed by the side walls h and the base plate 1. on the upper edge of the side walls h is a jacket ο arranged, which has a roof structure r with a heat insulating Insulation q supporting the suspended ceiling ρ. Below the Heating elements are located on the bottom plate 1.

The buried container described above has several disadvantages:

a) Since the soil 1 is lower than the water table k, it is exposed to high hydraulic pressure, which is why the floor slab must be 5 to 7 m thick;

b) Because of the depth of the tank, a large amount of soil must be excavated and used to build the floor slab 1 large construction machinery and equipment required, from which a hinge construction period follows;

v.) For the reasons given under a) and b) arise a lot

high construction costs;
d) The space requirement for the roof structure is large, so that the volume efficiency, by which the ratio of the amount of stored liquefied gas to the volume of the container as a whole, is to be understood.

It is thus an object of the invention to provide a large-capacity storage container to create in the safe way cryogenic liquefied petroleum gas can be stored without any stress concentrations due to heat shrinkage are caused, so that the security of the storage container is increased to a previously unattainable extent can be.

BAD OftiGlNÄL

Copy

Another object of the invention is to provide one Large-capacity storage container for which the construction work can be simplified significantly, so that the construction time is shortened and the Construction costs can be reduced.

Another object of the invention is to provide a utility storage container to create, which has essentially the shape of a water droplet, so caß the volume efficiency can be greatly increased. ■

These objects are achieved with a large capacity storage container according to the invention, as from the following description of embodiments based on the drawings showing the essential Make features recognizable becomes clear. Show it:

Fig. 3 is a section through a storage container in a first embodiment according to the invention;

Fig. 4 is a section through a storage container in a second embodiment according to the invention;

5 shows an illustration to explain a first Corner formation in a storage container according to the invention;

Fig. 6 is an illustration to explain a second Corner formation;

7 is an illustration for explaining a third Corner formation;

8 is an illustration for explaining a fourth corner formation;

9 shows a section through a storage container for the purpose of explanation a modified design for supporting the upper part of the storage container;

Fig. 10 is a view of a Obertei1 support in one further modified embodiment;

COPY

BATH ORIGINAL

.Ü; 1 ^{: <} L ^: - .. ^: ' ^: .. ^: -3 ^; 3O9395

11 shows a section through a storage container in a

third embodiment according to the invention; FIG. 12 shows a broken, partially sectioned view of the part enclosed in FIG. 11 by circle XII

on an enlarged scale;
13 shows a section through a storage container in a fourth embodiment according to the invention.

The storage container of Fig. 3 is above the water table L a foundation or base plate 1 on the Floor on which side walls 2 are erected in one piece with this, so that a trough is formed. Above the baseline G.L. an earth wall 3 is heaped up around the side walls 2, A heat insulating layer lies over the base plate 1 4 made of concrete.

A container body 5 with the shape of a water droplet rests on the heat insulating layer 4 and generally consists of a flat bottom 5a, a rounded corner 5b and an upper part 5c Lt shows, "the corner area 5b with an arc extending at a central angle C =) _{1 of} a circle whose radius of curvature is R ₁ , goes smoothly at its lower end into the bottom 5a and at its upper end smoothly into the upper part 5c, which _ ■ -ter an arc with a central angle G _{2 of} a circle whose radius of curvature R _? is, runs. Thus, each container body 5 looks like a drop of water located on a flat surface. In the first embodiment, the radii R. and R ₂ must meet the following conditions:

R ₁ - 0.06D

R ₂ = 0.8 to 1.2 D

R ₁ <R ₂

where D is the diameter of the container body. The wall-

BADORIGINAL ^COPY

thickness of any part or area of the container body 5 is set depending on the pressures acting on it.

To wear the top 5c, on the bottom 5a is essentially coaxial to the container body 5 ,. As FIG. 3 shows, a cylindrical or truss-like support 11 is erected. An annular holder 6 displaceable radially to the container body 5 on the concrete layer 4 is arranged so that it is in close contact with the corner area, so that on the weight of the cryogenic liquefied gas in the container body based deformations of the corner region 5b can be avoided. In addition, anchor 7 are provided against the The outer circumference of the corner area 5b rest against expansion and deformations of the corner area 5b and upper part 5c, which caused by the internal pressure of the gas in the container 5, to be able to switch off.

The container body 5 is covered on its outer surface by a heat-insulating insulation 8. One with bricks, for example Occupied roof structure 9 rests on the side wall 2 in order to enclose the container body 5.

In order to support the base plate 1, foundation piles 10 are driven into the ground. In the container body 5 is the low-temperature liquefied petroleum gas 12 saved.

The low-temperature liquid gas 12 stored in the container causes thermal shrinkage of the container body 5, but no stress concentration occurs because the container body has no angle or knot part at all. This leads to the conclusion that the safety de <: storage container is greatly increased, even if a large amount of ^{T-ieftemperatur} LPG is stored 12th In other words, it means the amount of gas stored

BAD COPY

can be increased considerably. Furthermore, the base plate 1 is higher than the water table L, so that a Pumping off the high-swelling groundwater is not necessary. In addition, the enclosed by the container body 5 can Space can be used entirely for the storage of the low-temperature liquefied gas 12.

In the embodiment shown in Fig. 4, the container body has 5, as in the first exemplary embodiment, essentially has the shape of an Isasser drop; the base plate 1 is here however, it is laid slightly below the water table L and serves as a floating foundation. In addition, the container body is 5 completely enclosed by an outer shell 13 to make the insulation 8 and the concrete layer 4 moisture-resistant close. In this embodiment there is a roof structure does not exist, so that an underwater pump 14 is provided within the tub to counteract that in the tub accumulated rainwater and groundwater via the drainage pipe to promote to the outside world. Furthermore, in this embodiment there is a barrier wall 16 which, when viewed from above has an annular shape and surrounds the foundation piles 10 so that penetration of groundwater into the tub can be prevented. The annular barrier wall 16 can be driven in formed by sheet steel plates in the ground. the The need for the presence of the barrier wall16 depends on the soil conditions at the construction site of the container.

In the second embodiment as well, stress concentrations are eliminated for the same reasons as 'you' first Embodiment mentioned were avoided.

The shape of the container body 5, i.e. its configuration in vertical section, with reference to FIGS. 6 to explained.

COPY

In the embodiment of the container body 5, which is modified compared to FIG. 5, and in particular its corner area 5b, it consists of three curves merging into one another, while the corner area 5b of FIG or a first arc extending over a central angle Q , a circle with a radius of curvature R ₁ , a middle or second arc extending over a central angle G _{3 of} a circle with a radius of curvature R ₃ , and an upper or third arc , which extends over a central angle Θ. of a circle with a radius of curvature R ₄ is formed. These arches go smoothly into one another and also - as in the first embodiment - smoothly into the bottom 5a and the upper part 5c. The radii of curvature must meet the following conditions:

K ₁ -CR ₃ <R ₄ <R ₂

Since these arches, as has been emphasized, merge smoothly into one another as well as into the base and the upper part, the Container body 5 no angles, corners or nodes present, so that no stress concentration will occur and consequently a high level of safety is guaranteed can be.

In the embodiment of the corner area shown in FIG 5b, again as in the case of FIG. 6, are three flush with one another There are subsequent arches, but the middle one or second arc is straight, i.e. its radius of curvature is infinite (co). ., .. ".

In the case of the very similar to the embodiment of Fig. 6, shown in Fig.S embodiment shown, the corner area 5b is designed so that the following condition is met:

R ₃ <R ₁ < R ₄ <R ₂

COPY

This means that the middle or second arch is the smallest Has radius of curvature.

Based on FIGS. 9 to 13, the upper part supporting Support or column 11 of the container body 5 discussed in more detail.

In the embodiment of Fig. 9, the column 11 consists of two cylindrical parts, namely from an upper structure 18 as well a lower supporting structure 19, the cylinder walls of which each have several openings 17. The upper structure 18 is firmly connected at its upper end to the inner wall surface of the upper part 5c and carries on its lower End of an annular flange 20. The lower structure 19 is equipped on its upper E ride with an annular flange 21, the zürn Rinyflansch 20 is designed in the same way and is to be brought into contact with it. The lower structure 19 is on his The lower end is fastened to the floor 5a in a position coaxial with the upper structure 18. This is what the lower and upper structures work with 19 and 18 together in order to carry the weight of the corner region 5b and of the upper part 5c of the container body 5.

Since dab upper and lower structure 18 and 19 respectively with the flanges 20 and 21 are provided, these structures, even if the one opposite the other with reference to the vertical axis of the column 11 is displaced radially outwardly, maintaining their abutment against one another, so that the container body is supported in a very stable manner.

In the interior of the container body 5 each extend a full and a drain line 22 and 23, respectively, which are essentially arranged vertically within the column 11 and telescopically displaceable in a plurality of vertically spaced, annular guide members 24 with some play in the radial Ri cli tu ng are used.

copy

: Γ::: . /. ■: ":. 3 = 3 ü 9 3 ΰ b

When the gas pressure inside the container body 5 is high, so its upper part 5c is raised. However, since the column 11, As has been explained, consists of the upper and lower structure 18 and 19, respectively, so the upper part 5c has the option of move upward together with the upper structure 18, removing it from the lower structure 19.

If the internal pressure is low, the corner area 5b is deformed, and this area 5b and the upper part 5c sink by their own weight, the flange 20 of the upper structure 18 going downwards together with the upper part 5c and with the flange 21 comes to rest on the lower structure 19 at the top, so that the upper part 5c is securely supported by the column 11 and is prevented from further sinking. Even if the upper part 5c and the upper supporting structure 18 experience radial movement, the flanges 20 remain in abutment, as mentioned above, so that the container body can be safely supported.

The cylindrical column 11 is provided with openings 17 in its wall. So that the liquid gas unhindered in the Column 11 can enter, making their space effective for the storage can be used.

Through the fill and drain line 22 and 23, the liquefied gas is introduced into the container body 5 or withdrawn therefrom. As already explained, these are lines 22, 23 telescopically inserted into the annular guide members 24, which in turn are attached to the inner walls of the upper and lower structure 18 b.iw. 19 are attached so that they are easily based on change in internal pressure vertical or radial movements or deformations of the corner area 5b and upper part 5c can follow. In order to damage to the fill and drain line 22 and 23 can be clearly prevented.

ORIGINAL BATHROOM

The formation shown in Fig. 10 of a support for the Upper part 5c is similar to the embodiment shown in Fig. 9, However, it consists of a truss column 25 with a rectangular cross section, which is why it has a large number on its sides of openings. As with the previous embodiment the truss column 25 has an upper and lower structure with flanges 20, 21 and with one associated with one another Filling line 22 and a discharge line (not shown), the vertical and radial movements or deformations of the Corner area 5b or upper part 5c can easily follow.

The truss column 25 can the container body 5 as well as support the column 11 of Fig. 9 securely, even if in the corner area 5b and vertical or radial deformations occur on the upper part 5c. In this respect, the advantages are that the corner area 5b and the upper part 5c can be made in a simple construction and with a lower weight.

In the case of the support for the upper part shown in FIGS. 11 and 12, the foundation piles 10 are driven into the ground 26, to increase its strength and load-bearing capacity. The base plate 1 is arranged above the floor 26, the WdrmtM so 1lerschlcht 4 lies over the base plate 1. The container body 5 is on the heat insulating layer 4 made of concrete. Inside the Behä1terkorpers 5 is the cylindrical or truss-like support 11 with side openings built. The upper ..- En.de of the support 11 is rigid with the inner surface of the upper part 5b, the lower end of the support is rigidly connected to the bottom 5a of the container body '5, so that the support 11 can safely carry this body 5.

In detail, at the lower end of the support 11 is a flange

27 trained. A pipe section 30 with flanges 28, 29 at both ends is embedded in the concrete layer 4. The top flange

28 is rigidly connected to the bottom 5a of the container body 5,

copy

BATH ORIGINAL

the lower flange 29 is by means of anchor bolts 31, the are in turn anchored in the base plate 1, clearly defined.

When the internal pressure rises, the Eckert area will rise 5b and the upper part 5c caused, but are the anchors 7 (see. Fig. 3) outside d <> s ßohä 1 t.crkorpers 5 and the support 11 counteracts the forces that strive to lift the corner area and the upper part on, which causes a deformation prevented by the corner area and upper part. The upper end of the support 11 is rigid with the cjpin upper part 5c of the container body 5 connected, while its lower end μ with the ground 5 a is connected, so that the loads on the lower S tu tearful be concentrated. As a result, there is tensile stress between the flange 2 7 on the lower support t ^ n η π de and the Act bottom 5 a of the container body 5, so that the latter one Shows a tendency to lift. The bottom 5a is rigidly held on the upper flange 28 of the pipe section 30, the lower Flange 29, in turn, is clearly anchored to base plate 1 by anchor bolts 31. Thus, the bottom 5a is on prevented from lifting with respect to the concrete layer 4, and that As a result, excessive stress concentration at the bottom 5a when the internal pressure is high can be avoided. In this way, damage to the floor 5a can be prevented.

If, on the other hand, the internal pressure. is small, so has. the weight of the upper part 5c tends to deform the corner area 5b or ausube'u leii, "so that corner area 5b and upper part 5c tend to sink; the support 11 can .jedoch, the sinking of the upper part 5c of the container body 5 - clearly prevent. As a result, the corner portion 5b and the top 5c can be simplified in construction and with little Weight to be run. In addition, the filling and discharge line 22 or 23 securely ostigt w.; rd-jii, so that damage to them can be prevented.

Copy; BAP original

In the embodiment of FIG. 13, that of FIG 11 and 12, the lower flange 29 of the agitator 30 is fixed to the foundation piles 10 anchored by means of connecting links 32. Also through this training can raise or lower the upper part 5c can be prevented in the manner described above.

The subject of the invention was in connection with the Storage of temperature fl uid gas explained. It is however, it is clear that the storage container according to the invention is alike can be used for the storage of other flowable materia lien.

The effects and advantages of the subject invention can be summarized as follows:

1. The bottom, corner area and top of the container core ρ er s flow smoothly into one another, so that no irregularities whatsoever such as angles, corners and nodes, occur between these parts, whereby, even if the container body due to the storage of a cryogenic liquid gas or the like shrinks, local stress concentrations can be avoided. As a result, the container body is protected against damage from this side, whereby its security is considerably increased.

2. In the event of an earthquake, the container body behaves like a rubber balloon filled with a liquid, i.e., the container body tries to roll, so that he does not have any exceptionally strong powers is exposed and is therefore protected against damage. üjnit the security can be guaranteed.

3. ü - - r storage tank according to the invention can be created by simple Koshtruktion and can with a very small number of components so that its establishment can be easily and kosteiHjunst igt accomplished.

ORIGINAL

COPY

4. Avoid exposing the base plate to the pressure of groundwater suspend so that this can be carried out with less strength. In addition, the depth of the im Soil excavation to be provided for the construction of the container can be reduced, so that the construction work both in terms of time as well as cost can be reduced.

5. The space inside the container body can be used entirely for the Storage of a low-temperature liquefied gas can be used, that is, the storage capacity or the efficiency is significantly increased.

6. The top of the container body is supported by a support so that the corner area and the top in the Compared to known storage containers with reduced Strength can be run. In addition, these parts can be simple in construction and light in weight sen.

7. By using a two-part support, the top of the container body can be lifted, even if it is on the ground an increase in internal pressure is easily deformed by itself to accommodate the pressure increase. If on the other hand the internal pressure drops, the upper part of the B ^ - container body safely carried by the support, with which a high level of security can be guaranteed.

8. In the case of a one-piece support, its upper end is rigid with the upper part and its lower end with the bottom of the Container body connected, so that its on changes in Lowering or raising due to internal pressure can be prevented with certainty.

9. In the case mentioned under 8., the lower end of the column can be firmly anchored to the base plate through the concrete layer so that even if the tensions on the ground are due to an increase in the internal pressure ^ Turning. Lifting of the upper part concentrated w ^ rdt-n, the lifting of the soil clearly prevented werdon k.nm, whereby a Damage to this is avoided.

; QOPY BAD ORIGINAL

Read more

Claims (5)

.OUlS NUREMBERG 20 ishikawajima-Harima Jukogyo K.K. 22 717 No. 2-1, 2-chome, Ote-machi Chiyoda-ku Tokyo-to / Japan large capacity storage container claims 1. Large capacity storage container, thereby I denote that a relatively flattened container body (5) in the vertical section has a _{certain shape made up of a plurality of arches with different radii of curvature (R 1} , R ^, R ₃ , R ₄ I, the arches merging smoothly into one another. 2. Storage container according to claim 1, characterized in that the container body (5) on a base plate (1) which is excavated in a from the ground. Tub, lies _ _{ν is} arranged. 3. Storage container according to claim 1 or 2, characterized in that " g e k e η η ζ e i c h η e t that within the container body (5) a two-part support (11, 25) with an upper * and lower structure (18, 19) is erected and that an upper end of the upper structure (18) firmly with COPY an upper part (5c) of the container body (5) and a lower end of the lower structure (19) fixed to the Bottom (5a) of the container body are connected. 4. Storage container according to claim 1 or 2, characterized g e k e η η ζ e i c h η e t that within the container body a one-piece support is erected, the upper end of which is rigidly connected to an upper part (5c) of the container body (5) and its lower end (27) fixed to the bottom (5a) of the container body, which in turn is rigidly attached to a base plate (1) is anchored, connected. 5. Storage container according to claim 1 or 2, characterized g e k e η η ζ e i c h η e t that within the container body a one-piece support is erected, the upper end of which is rigidly connected to an upper part of the container body and their lower end firmly to the bottom of the Bfhä1terkörpers is connected, and that the support on foundation piles driven into the ground below the base plate (10) is firmly anchored. copy - j BATH ORIGINAL