DD150030A1 - CONTAINER WITH GAS PENDULUM LINE - Google Patents

Abstract

The invention relates to containers with a shut-off gas displacement line, which penetrates the Behaelterwand below auszen and ends above the liquid level in Behaelterinnern. While the object of the invention is to provide such a container which is economical to produce and has high utility value properties, the object is to avoid sloshing of liquid into the open end of the gas return line and to protect the gas return line against damage by sloshing liquid. As a solution to this, it is now provided that the upper container wall has a pipe socket into which the open end of the gas displacement line protrudes to form an annular gap. Furthermore, a safety valve can be arranged within the pipe socket. With the simplest means a Schwappsicherung for the gas displacement line is created. At the same time the pipe socket acts as a lateral support for the latter, and the safety valve is also protected against sloshing medium.

Description

~ ^Λ " Berlin, March 10, 1980." * 57 013/27/37

Container with vapor recovery pipe

Scope of the invention

The invention relates to a container with a lockable gas displacement line, whose upper, open end protrudes into the tank space located above the liquid level j while the lower end of the gas displacement line penetrates the container wall to the outside.

Use find such containers for the transport of liquefied gases in particular and dangerous, z. B, flammable, aggressive or toxic liquids.

Characteristic of most th te chnical solutions

The shut-off valve of the gas displacement line is preferably located in the container interior, so that it is not torn off the container in an accident. It may be placed inside directly on the bottom wall of the container, or the Gaspenöelleitung carries it at a distance from the bottom wall (FR-PS 13 79 210).

Problems prepare during transport, especially in abrupt braking, occurring sloshing movements of the filling liquid in the container; because there is a risk that liquid enters the open end of the gas displacement line · Hereupon u * U «can stick the shut-off valve in the gas displacement line, or it would, if the gas displacement line z. B. free ends under the container,

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As is customary, among other things, in heating oil transport containers, the liquid which has penetrated into the gas displacement line flows out into the open during subsequent emptying of the container. All this must be prevented. Due to the sloshing movements, the gas displacement line is sometimes exposed to considerable side loads, which can lead to bending or even kinking of the gas displacement line.

Aim of the invention

The aim of the invention is to provide a high utility value having and economically producible container with shut-off gas displacement line.

Explanation of the essence of the invention

The invention has for its object to provide a container of the type mentioned zi /, in which a sloshing of liquid in the open end of the gas displacement line does not occur and also the gas displacement line is protected against damage by sloshing liquid *

According to the invention, the object is achieved in that a pipe socket is provided on the inside of the upper tank wall, into the free end of which the gas displacement pipe projects axially with its open end under formation of an annular gap surrounding it.

The attached to the vessel wall pipe socket shields the open end of the gas displacement line against the sloshing liquid. At the same time it forms a secure lateral support for the upper end of the gas displacement line.

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In a further embodiment of the invention it is provided that the pipe socket and / or the gas displacement line in the region of the annular gap provided with radial spacers' are / is, whereby a v / eitere restriction of the lateral movement of the open end of the gas displacement line is effected »A particularly preferred embodiment results when the pipe socket and / or the gas displacement line in the region of the annular gap carries at least one radial impact collar, which has the spacers, Y / obei the planned impact collars also prevent the sloshing liquid from entering the annular gap, even with larger annular gap width »

For applications in which a safety valve is necessary or, it is advantageous if the upper container wall carries a device connected to the interior of the Kohrstutzens safety valve "-By features of the invention it is ensured at the safety valve, that the ^v entileinlaß is always exposed only to the gas phase and not z. B. is glued by sloshing liquid. As an additional protection for the safety valve against demolition in case of accident, it is provided that the safety valve is disposed substantially within the pipe socket and possibly the open end of the gas displacement line. A particularly advantageous embodiment of the safety valve results from this if it has a tubular housing , which at its container wall remote end a valve seat for a spring-loaded closure member and at its reserves erwandnaheai end carries an abutment for a closing spring *

As appropriate, it has further been shown when the upper container wall is provided with a flange which centrally has the DurchlaßOffnung with the safety valve

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and peripherally carries the pipe socket. As a result, the pipe socket and the receptacle for the safety valve can be designed so that they can be used as a single unit in the container wall and fixed there.

Embodiment "

The invention will be explained in more detail below using an exemplary embodiment. The accompanying drawing shows a partially illustrated container for the transport of flammable liquids.

The bottom wall 1 of a container only partially shown for the transport of combustible liquids is penetrated by a trained as a vertical standpipe gas displacement line 2. Outside the container are a valve actuator 3 and a flame arrester 4 on. the gas displacement line 2 attached.

The valve actuating device 3 may be coupled to the actuating device of a likewise provided on the container, not shown bottom valve for the liquid in the container.

The gas displacement line 2 has in the container interior 5, in the vicinity of the bottom wall 1, a shut-off valve 6, which is controlled by the valve operating device 3. In the container interior 5, the gas displacement line 2 ends at a distance above the liquid level 7 · In the upper container wall 8, a flange 9 is inserted centrally a passage opening 10 with a safety valve 11 and peripherally a the upper, open end 12 of the gas displacement line 2 um-

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giving it between these two remains an annular gap 14, and also both each have a .Prallkragen 15 which has radial spacers 16 between the pipe socket 13 and the gas displacement line 2.

The safety valve 11 is provided with a rohrfömigen, largely container inside arranged housing 17, which projects freely into the gas displacement line 2. At its end close to the container wall 8, the housing 17 carries an abutment 18 for a closing spring 19 * This acts on a closure member 20 which cooperates with a valve seat 21 provided on the container wall remote end of the housing 17. The outlet opening 22 of the safety valve 11 is by a bursting foil 23 against intrusion of unwanted, possibly the ^ 'unktionsfähigkeit impairing foreign substances -. As rain, snow, dirt - closed. A lid or a cap, which flies from below when pressurized, would also be conceivable as a closure member *

By the open end 12 of the gas displacement line 2 concentrically surrounding pipe socket 13 prevents a sloshing of liquid in the container penetrates into the gas displacement line 2 in sloshing movements of the liquid; because of the existing between this and the pipe socket 13 annular gap 14 and the impact collar 15 set the sloshing liquid such a flow resistance against «that they are not connected to the open end 12 of the gas. transmission line 2, ~

Since the end 12 on the impact collar 15 and the spacers 16 radially on 'Röhrstuzen 13 support is, is

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a bending or bending of the gas displacement line 2 under the lateral load by sloshing liquid reliably prevented.

In all this, the free Störmungsquerschnitt in the annular gap 14 has such a size that when pulling and emptying of the container of the required air or gas flow through the flame arrester 4, the shut-off valve 6, the gas displacement line 2 and the annular gap 14 in the container or out of this can.

In case of excessive pressure increase in the container, z. B. by external fire in an accident, the closure member 20 of the safety valve 11 opens, and the bursting foil 23 bursts. Excess gas volume can then flow out of the container via the annular gap 14 and the safety valve 11 to the outside, until after dropping the container internal pressure to the permissible value, the Yerschlußteil 20 comes under the action of the closing spring 19 again sealingly on the valve seat 21 to rest.

The safety valve 11 is shielded by the gas displacement line and the pipe socket 13 against the liquid. In addition, the arrangement of the safety valve 11 sunk in the container provides protection against accidental tearing, e.g. in case of overturning of the container.

Claims (1)

-7- - 10.3.1980 57 013/27 invention claim 1 «container with a lockable gas displacement line, the upper, open end in the liquid level above the liquid s container space protrudes, while the lower end of the gas displacement line penetrates the container wall to the outside, characterized in that on the upper container wall (8) inside a pipe socket (13) is provided, in the free end of the gas displacement line (2) with its open end (12) axially to form a surrounding ingspaltes (14) protrudes. 2 »container according to item 1, characterized in that the Kohrstutzen (13) and / or the gas displacement line (2) in the region of the Hingspaltes (14) with radial JDistanzhaltern (16) is / is, 3 «container according to item 2, characterized in that the Kohrstutzen (13) and / or the gas displacement line (2) in the region of the annular gap (14) carries at least one radial impact collar (15) having the spacers (16) β 4e container according to one or more of the preceding points 1 to 3, characterized in that the upper container wall (8) carries a to the interior of the pipe socket (13) connected safety valve (11) » -8- 10 · 3.1980 57 013/27 5 · Container according to point 4, characterized in that the safety valve (11) is arranged substantially inside the pipe socket (13) and possibly the open end (12) of the gas supply line (2). 6. The container according to one or more of the preceding items 1 to 5, characterized in that the safety valve (11) comprises a tubular housing (17) that retains at its erwandfernen end a valve seat (21) for a spring-loaded ^ ^v erSchlußteil (20 ) and at its container end wall carries an abutment (18) for a closing spring (19) · Container according to one or more of the preceding items 1 to 6, characterized in that the upper container wall (8) is provided with a chute (9) which centrally has the passage opening (10) with the safety valve (11) and peripherally Pipe socket (13) bears « To do this, 1 soap drawings