EP1094016A1 - Conveying device for liquids - Google Patents

Abstract

The container for transporting liquids comprises a tank with body (10) and end plates (11, 12) made form thin steel sheet or plastic. This is transported inside a conventional container and has spacers (13) consisting of foam material, wood or air cushions along its base.

Description

The invention relates to a transport device for Liquids.

Bulk transport of liquids is usually carried out in tank containers or flexible containers. Now it is announced that the main advantage over a so-called flexitank a tank container is that it can be found in almost all Use cases offers considerable cost advantages. Disadvantageous is that rubber or plastic tanks are always relative are prone to leakage and are therefore extremely sensitive. she require a considerable amount of handling, care, Monitoring and constant maintenance. The accompanying With great care, not inconsiderable risk is always latent, simply because the tanks go through many hands and get it in the chain will always give people who are so complex Systems are overwhelmed. In view of this problem, make an effort all Flexitank providers are as high as possible qualified service.

But how would a technically advanced transport tank system be? be prepared so that the risk factors outlined and disadvantages can be avoided without going on Do you have to forego cost advantages? And not only that: about it in addition to being an advanced system additional benefits are expected to grow among To be able to remain competitive in the long term.

The answer to the questions asked is a new development "Steel inlay tank system" or "Sheet inlay tank system" or also graduated / composed stagger inlay tank system ".

Am Prinzip des "Inlays" analog zum Flexitank soll festgehalten werden. Damit bleiben die bekannten Vorteile eines Schachtelsystems (Stagger System), also eines "nachrüstbaren Containers-im-Standard-Container" erhalten. Geht man von diesem einmal als ökonomisch optimal erkannten Prinzip als vorgegeben aus, müssen sich weiterführende Überlegungen auf alternative Werkstoffe und Bauweise richten.

The SIT system is based on the following considerations:

The principle of the "inlay" analogous to the Flexitank should be adhered to. In this way, the known advantages of a box system (stagger system), ie a "retrofittable container in the standard container" are retained. If one starts from this principle, which is recognized as economically optimal, as a given, further considerations must focus on alternative materials and construction methods.

Metal sheet is now the most used Construction material and at the same time much cheaper than e.g. coated fabric, but above all is sheet metal as "classic" material with excellent strength values extremely predictable. Tanks from e.g. coated steel sheet, Niro, or coated aluminum alloy are related to their Usability much more versatile and unproblematic than Coated fabric tanks. Also stand nowadays sophisticated and modern sheet metal coating processes for Available. Furthermore, it should be clear that there are tank inlets made of sheet metal with virtually no leakage and abrasion problems will give.

Now it would make little sense for processing reasons make the inlay tanks complete in the production plant put together. The transport costs of the empty containers for the most part far away location would simply be too high. That would be it System unprofitable from the start, so yet another Thought must come into play, namely the conception as Kit.

To make things really round, there has to be another one Condition must be met: The system must be so light and simple be that on-site assembly can be carried out with minimal effort can go and the shipping costs are tolerably low fail. This in turn is possible due to the special Construction of the SIT system. Last but not least, a new one Only implement the system successfully on the market if you do so a large potential need can be met, both in terms of quantity as well as requirements. This again, by the way, this results from the consequent Application of the KIT concept in machine series production, without however, that the range of variation of the system is disadvantageous is narrowed down: there is the possibility of different Sheet materials with different coating techniques too combine.

The SIT system essentially consists of a spiral welded, tubular mantle and two almost identical End plates made from deep-drawn sheet metal. The items will be shortly before delivery to the shipper for the tank inlay assembled and inserted into the standard container (Fig. 1). Then the system is ready to load and can Shippers survive. Of course it is also possible or occasionally sensible, the assembly of the tank inlays by the Let shippers do it themselves. Need with practice two men for the whole assembly about 10 to 15 minutes.

There are wedge pieces in an accessory pack for the kit Styrofoam or air cushion (Fig. 1 and Fig. 5 and 6). The Wedge pieces are needed as lining pieces to the tank inlay during the loading process in the transition area from the floor to the Support side wall and must be installed in the Containers are inserted. The front faceplate is smooth, the rear faceplate has three connections: one connection in the lower area for filling or emptying the tank, a central connection for washing the tank (for the Spray lance) and a connection in the upper area Venting / ventilation when loading / unloading the tank.

The key element of the construction is the closure "Jacket tube / end plate". There are basically two here different construction options, being clarified is whether the closure can be made irreversible (irreversible) may, or must be designed to be reversible. Ultimately this is a purely technical issue. An unsolvable Closure is relatively easy to assemble, e.g. by Gluing or soldering (Fig. 2, 3). He should be far for that most applications are possible, e.g. for all Disposable applications and various reusable applications in which the tank can be washed easily. Detachable closures are more complex even as quick-release fastener, simply because that the assembly and disassembly work in each one Application must be repeated. The main advantage Detachable closures consist of disassembled empty containers can simply be transported much more cost-effectively, especially over long distances, of course. Here it is important Weigh the technical advantages and disadvantages of the processing.

Now there are also a number of special applications with special ones Requirements provided for the proven additional device can be. E.g. is available for transports with particularly high loads Safety requirements additional sumps and for cases in where the product has to be driven heated, very inexpensive and easily installable standard heating tapes. Naturally can also put insulating blankets tailored to the system or delivered.

• alle Nahrungsmittel, Mineralöl- und Schmierstoffprodukte und nahezu alle Chemikalien,
• besonders verderbliche Nahrungsmittel, wie z. B. Milch, Tomatenmark, Orangensaftkonzentrate, Frischsäfte usw. Für derartige Transportaufgaben kann das SIT-System aseptisch eingestellt werden,
• Produkte, die warm oder selbst heiß gefahren werden müssen. Hierfür steht ein handelsübliches und leicht einbaubares Heizsystem, ggfs. in Kombination mit Isolierdecken, zur Verfügung.
• besondes zähe, schwerfließende Produkte wie z.B. Druckerschwärze, Honig usw.
• Gefahrgut nach Prüfung und Freigabe.

The system can be used almost indefinitely, for

• all food, mineral oil and lubricant products and almost all chemicals,
• particularly perishable foods, such as B. milk, tomato paste, orange juice concentrates, fresh juices etc. For such transport tasks, the SIT system can be set aseptically,
• Products that need to be driven warm or even hot. A commercially available and easily installed heating system is available for this, possibly in combination with insulating ceilings.
• particularly tough, difficult-flowing products such as printing ink, honey, etc.
• Dangerous goods after testing and approval.

wesentlich betriebssicherer als jedes noch so gute Flexitank-System, nämlich mindestens so betriebssicher wie Tank-Container;

bieten einen zusätzlichen Sicherheitsbonus. Sie liegen geschützt und gewissermaßen sicher eingebettet "wie in Abrahams Schoß" im eigentlichen Container. Durch die dazwischen befindlichen Freiräume ergeben sich freie Knautschzonen;

schnell einfach und sicher zu montieren: Mit zwei Mann in fünfzehn Minuten;

sehr viel einfacher zu handeln als Flexitanks;

auch mit Hilfe von Druckluft einleerbar;

ohne Probleme restlos entleerbar. Etwaige Probleme, dass sich Nester bilden wie beim Flexitank mit bis zu 500 kg Restmenge, entfallen naturgemäß;

leicht, und zwar maschinell, zu reinigen;

so gut wie wartgungsfrei,

ohne besondere Anforderungen an die Qualität des Standard-Containers einsetzbar,

nach Gebrauch problemlos zu entsorgen. Verbrauchte Tanks werden einfach abgesaugt und dann als flaches Knautschpaket der Metallverwertung zugeführt;

in größeren Stückzahlen zu verträglichen Terminen herstellbar. Die Abwicklung wird so durchorganisiert, dass alle möglichen Bedarfsfälle zügig gedeckt werden können;

sowohl im Einweg als auch Mehrweg-Verkehr einsetzbar. Im letzteren Fall müssen die Tank-Inlays nach jedem Einsatz mit einer Sprühlanze gereinigt werden.

The systems according to the invention are considerably cheaper than flexitanks or tank containers;

considerably more reliable than any good Flexitank system, namely at least as reliable as tank containers;

offer an additional security bonus. They are protected and, to a certain extent, securely embedded "as in Abraham's lap" in the actual container. The free spaces in between result in free crumple zones;

quick and easy to assemble: with two men in fifteen minutes;

much easier to trade than flexitanks;

can also be emptied using compressed air;

completely emptied without any problems. Any problems that form nests as with the Flexitank with a residual amount of up to 500 kg are naturally eliminated;

easy to clean by machine;

virtually maintenance-free,

can be used without special requirements for the quality of the standard container,

easy to dispose of after use. Used tanks are simply vacuumed off and then sent to metal recycling as a flat crumple pack;

Can be produced in large numbers at compatible dates. The process is organized in such a way that all possible needs can be covered quickly;

can be used in both one-way and returnable transport. In the latter case, the tank inlays must be cleaned with a spray lance after each use.

The systems according to the invention are sold and marketed by worldwide forwarding and shipping companies. They are stocked as kits in licensed depots and installed (fitted) in standard containers upon delivery to the shipper. The system can then be filled in a similar way to a tank container.
Systems used in one-way traffic are scrapped after use. Reusable systems are washed in a licensed depot or immediately after unloading at the unloader and kept ready for the next use. Use for products of the same type in a product group is permitted, ie that only food may be transported in tank inlays that are intended for foodstuffs and not chemicals in between. However, it is also permissible to downgrade a food tank from e.g. B. food on chemicals, just not the other way around. Corresponding notes are located on the rear end plate of the tank inlay.

The following table values are based on the idealized assumption of a circular cylinder. This was initially assumed when calculating the cubages. The cross-section actually constructed then corresponds to a cylinder flattened at the bottom, like a loaf of bread, which reduces the height of the tank and extends the width to the width of the container. Nom. Cubage Applications diameter length Faceplate 16 cmb Concentrates 2.00 mtr 5.10 mtr "A" 17 cmb Intermediate size 2.00 mtr 5.45 mtr "A" 18 cmb heavy, aqueous solutions 2.00 mtr 5.80 m "A" 19 cmb Intermediate size 2.25 mtr 4.80 mtr "B"" 20 cmb Wine and watery solutions 2.25 mtr 5.05 mtr "B" 21 cmb Wine and watery solutions 2.25 mtr 5.30 mtr "B" 22 cmb interim solution 2.25 mtr 5.55 mtr "B" 23 cmb Oils and latex 2.25 mtr 5.80 m "B" 24 cmb Special size 2.30 mtr 5.80 m "C"

This table shows that - apart from the Special size - only end plates in two sizes are required to cover the whole program. The lengths move - apart from the intermediate size "19 cbm" - between 5.05 and 5.80 mtr.

Essential features of the present invention are on the one hand the container and on the other hand the holder of this container in Transport container.

The container has a cylindrical or semi-cylindrical one Proven shape or modified designs, where the optimal shape corresponds to that of a loaf of bread. The containers can now be designed so that you can stretch them into each other can, if they are to be transported empty. If one uses longitudinally divided container halves, so can be slightly tapered and inserted into each other become.

The connection options for the container parts are Seals in a wide variety of designs that be well mastered purely in terms of technology. At the in In the longitudinal direction, the container is divided into a middle bulkhead with an inflatable seal insert through which the two container parts, if desired, from each other can be sealed and immediately the tight connection of the both container segments is accomplished to the outside.

Fig. 1

zeigt eine schaubildliche Ansicht einer Vorrichtung zum Transport von Flüssigkeiten gemäß der Erfindung.

Die Fig. 2 bis 4

zeigen in vergrößertem Maßstab Verbindungsmöglichkeiten zwischen dem mehr oder weniger zylindrischen Teil und den Stirnseitenteilen einer Vorrichtung gemäß der Erfindung.

Fig. 5

zeigt eine stirnseitige Ansicht eines zylindrischen Behälters innerhalb eines handelsüblichen Containers.

Fig. 6

zeigt eine stirnbildliche Ansicht eines ausgewölbten zylinderischen Behälters in einem Container.

Fig. 7

zeigt eine Vorderansicht einer Mehrzahl von ineinander gesteckten im wesentlichen zylindrischen Teilen einer Vorrichtung gemäß der Erfindung.

Fig. 8

zeigt einen Längsquerschnitt durch eine andere Ausführungsform eines Behälters gemäß der Erfindung mit innenliegenden Zugankern.

Fig. 9

zeigt einen Längsquerschnitt durch eine andere Ausführungsform eines Behälters gemäß der Erfindung mit außenliegenden Zugankern.

Fig. 10

zeigt in geändertem Maßstab die Verbindungsstelle von zwei Behältersegmenten mit einer Mittelschottwand.

Fig. 11

zeigt eine Querschnittsansicht durch einen Behälter gemäß der Erfindung mit idealer Querschnittsgestaltung.

The invention is explained below using the drawing, for example.

Fig. 1

shows a perspective view of a device for transporting liquids according to the invention.

2 to 4

show on an enlarged scale connection options between the more or less cylindrical part and the end face parts of a device according to the invention.

Fig. 5

shows an end view of a cylindrical container within a commercially available container.

Fig. 6

shows a front view of a bulged cylindrical container in a container.

Fig. 7

shows a front view of a plurality of nested substantially cylindrical parts of a device according to the invention.

Fig. 8

shows a longitudinal cross section through another embodiment of a container according to the invention with internal tie rods.

Fig. 9

shows a longitudinal cross section through another embodiment of a container according to the invention with external tie rods.

Fig. 10

shows in a modified scale the connection point of two container segments with a middle bulkhead.

Fig. 11

shows a cross-sectional view through a container according to the invention with ideal cross-sectional design.

Fig. 1 shows with 10 a cylinder jacket that spiral welded sheet with a thickness in the range of 1 mm has been produced. This cylinder jacket 10 becomes both ends firmly closed with lids 11 and 12, the covers 11 and 12 can have the same structure or are designed differently.

With 13 fillers made of foam are referred to, which together with the container 10, 11 and 12 in a commercially available Containers can be accommodated to transport the container 10, 11, 12 to accomplish.

Fig. 2 shows an enlarged scale one way to Solder the lid 11 to the jacket 10.

Fig. 3 shows a correspondingly enlarged scale Bond point.

4 shows the possibility of how the individual parts 10 and 11 or 10 and 12 can be put together so that without further ado the parts can be separated.

In the edge area of the cover part 11 and the cylinder jacket 10 there is sealant, and a sufficiently large one Internal pressure is ensured by ensuring that it is liquid-tight Connection between indoor and outdoor space is possible without this connection could not be broken.

Figures 5 and 6 show end views of the Container 10, 11, 12, in one embodiment the jacket 10 retains its cylindrical shape while in the another embodiment, the jacket 17 has an arched shape can assume that essentially the interior of the container 20 corresponds.

For security reasons, inside the container 20 there is still a catch basin, so if there is a leak in the Container 10, 11, 12 the escaping liquid from the Interior of the container 20 can flow out.

Likewise, a inside of the container 10, 11, 12 additional expandable closed film are so that increased security can be achieved during transport can.

Fig. 7 shows nested shell parts 10 which are on this Way inside a shipping container to one Manufacturing location can be transported. The manufactured The jacket parts are slightly deformed and then pushed together, so the five nested coats shown just the The length that a coat has for itself. In place the inside of the jackets 10 is first removed and with the two end parts connected to a container 10, 11, 12.

Due to the cylindrical design of the jackets 10, these can by being plugged into one another by being in the lower area, as shown in Fig. 7 are deformed.

Make the two tie rod constructions (40) of FIGS. 8 and 9 two further variants of the container 10 according to the invention. These two solutions still apply to three-part solutions Systems. Tie rod attachments are much easier, however and safer to install than systems with circumferential fastenings the cover on the cylinder.

The optimized cross-sectional geometry for the container is in Fig. 11 clearly shown because the largest by far Area of application for thin-walled, heavy-duty tank structures be carried out exactly according to this cross-sectional image must and will. The deviation from the purely cylindrical shape. which is ideal for pressurized gas containers results for Liquid charges from the triangular shape of the hydrostatic Pressure characteristic. This loaf of bread also appears in the Loading of the flexible tanks. In this respect, here for semi-rigid containers (made of sheet metal) an ideal shape for thin-walled Replica membranes based on the soap skin model. You can also referred to as a flattened cylinder, which results from the Superposition of a rectangular with a triangular vertical Pressure curve results.

The extension of the registration to two-part systems shows the Fig. 10. It is necessary that the cups 10 'and 10' ' (Cups) are tapered so they are stacked together economical as empties (20 to 30 pieces in a container) can be transported. The assembly is reduced by two Layers on one layer. The tie rods and a seal. In addition, there is a middle bulkhead 41 and 42, that may seem more complex at first, but many Offers advantages. It is essential that the cup shape and the middle bulkhead achieves considerable dimensional stability, which is indispensable especially for thin-walled constructions. The dynamic locking and sealing mechanism 43 to 46 ensures a high level of functional Safety, especially when deformed in the event of an accident is significant. Set the seal 43 and the closure 44-46 to a certain extent always and immediately independently. Inflated and is suctioned off the rubber hose 43 via an air valve on Outer circumference of the middle bulkhead 41 at a medium height in a semicircle the ceiling section 10 'or 10' '. The valve can therefore not turn on scrub the container wall and is still with the tank loaded accessible.

The cup shape with the shown locking mechanism should be in the material variant made of stainless steel sheet now especially recommended for hazardous goods applications, where then only the wall thickness would have to be increased.

Claims (3)

Device for transporting liquids, comprising one in the interior of a commercially available transport container matching container, characterized in that the Container (10, 11, 12) made of a substantially cylindrical or semi-cylindrical jacket (10) made of sheet metal or one Plastic plate is formed on both sides by each an end wall (11, 12) made of sheet metal or one Plastic plate is detachably completed and that for the im Containers (10, 11, 12) arranged inside a container (20) Brackets or spacers (4, 13) made of foam, wood or air cushions in the bottom area, in the lower side area or are provided in the lower corner areas of the container (20). Device according to claim 1, characterized by several tie rods extending in the longitudinal direction of the container (10) (40) placed inside or outside the container are. Device according to one of claims 1 or 2, characterized by a the container (10 ', 10' ') in two parts dividing bulkhead (41, 42) with a radially outer arranged expandable rubber bellows (43), the connecting parts (44, 45, 46) of the container parts (10 ', 10' ').

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