DE1272323B - Heat-insulated container for storing low-boiling liquefied gases - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

F17c

German KL: 17 g - 4

Number: 1272 323

File number: P 12 72 323.8-13 (C 26060)

Filing date: January 22, 1962

Opening day: July 11, 1968

The invention relates to a thermally insulated container for storing low-boiling liquefied gases about atmospheric pressure, consisting of a rigid outer jacket, the inner surface of which is thermally insulating and panels delimiting the container space are lined, each panel of which is one outer, liquid-impermeable cover panel facing the jacket and an inner, likewise liquid-impermeable cover panel Cover panel includes, between them a core made of a porous, heat-insulating ίο enclose the material, with the inner cover panels of the panels forming a liquid impervious to one another Container wall connected and attached near the edges of each outer cover panel the outside of which flexible fastening means are provided, which the plates at a distance from the hold rigid outer jacket and allow lateral expansion movements of the plates, and wherein at least the inner cover panel of each plate protrudes beyond the edges of the core and with the inner one Cover panel of the adjoining plate flexibly connected and that between the cores of adjacent ones Space located below the flexible connection with heat-insulating material, in particular with foamed plastic, is filled, - and furthermore the core of a There is honeycomb material, the cavities of which are filled with a foamed plastic, according to the patent 1,229,562.

Such a heat-insulated container is the subject of the main patent 1 229 562. As in this container Kraft paper impregnated with phenolic resin as the material for producing the honeycomb of the honeycomb core is used, which is not porous and gas-impermeable, must in the case when the between the inner and outer cover panels of the panels for even better Thermal insulation should be evacuated for each cavity formed by a honeycomb of the honeycomb core a separate vacuum connection opening can be provided at each point between the one another connected cover panels of the plates delimiting the container space to generate a vacuum.

The aim of the invention is in the heat-insulated container according to the main patent, the cavities of honeycomb cores located between the cover panels of the individual panels on particularly fast and easy way to be able to evacuate to the thermal insulation of the plates delimiting the container space to increase further.

This aim is achieved according to the invention in that the walls of the honeycomb material are either for heat-insulated containers for storage
low-boiling liquefied gases

Addendum to the patent: 1229 562

Applicant:

Conch International Methane Limited, Nassau

(Bahama Islands)

Representative:

Dr.-Ing. F. Wuesthoff, Dipl.-Ing. G. Pulse
and Dr. E. v. Pechmann, patent attorneys,
8000 Munich 90, Schweigerstr. 2

Named as inventor:

Bucket of Sykes Knife, Tulsa, OkIa. (V. St. A.)

Claimed priority:

V. St. v. America 23 January 1961 (84 382)

Vapors are permeable or have openings in a manner known per se, and that the core is in is enclosed in a known manner by a sealing wall laterally gas-tight, which. on the two cover panels attached to the plate.

The inventive feature that the walls of the honeycomb core are air-permeable or are provided with small air outlet openings, the advantage is achieved that only a single vacuum connection opening is provided in the cover panels of the individual plates needs to be to convert the entire cavities of the core in question into a single one To evacuate the operation. The provision of sealing walls between the honeycomb core of each panel the cover panels of the same laterally enclose in a gas-tight manner, yields the further advantage that every single panel can be evacuated during its production without the risk of that the vacuum established inside the panels prior to assembling the panels for making the thermally insulated container can escape.

It should be noted in this connection that it belongs to the state of the art that Walls of a used to isolate a container

809 569/191

To provide honeycomb material with openings to a connected vacuum pump in all Cavities of the honeycomb material to create a vacuum. Since in this known container but the outer and inner container jacket, both of which enclose the honeycomb material between them, continuously, d. H. are formed from a single piece and therefore not, as is the case with the container is the case according to the main claim, are composed of individual plates, this can be ίο Known containers also give no suggestion for the measure according to the invention, the honeycomb core each to provide individual panels with openings and to enclose them in a gastight manner at the side by a sealing wall, but this only ensures that each plate can be evacuated during its manufacture.

It is already known per se for a thermally insulated container that is made of honeycomb material To enclose thermal insulation on the sides in a gastight manner. But even with this container there are ao the walls do not consist of a multitude of individual plates welded to one another, but of a continuous part.

The sealing wall in the thermally insulated container according to the invention is expediently which encloses each core gas-tight at the sides, made of the same material as the cover panels.

The invention is illustrated below with reference to a schematic drawing of an exemplary embodiment explained in more detail.

Fig. 1 shows a cross section through a wall part of a heat-insulated container according to the invention, while

F i g. FIG. 2 shows a partially broken away perspective illustration of one of the wall according to FIG F i g. 1 plate used is.

Referring to FIG. 1 includes the thermally insulated A rigid container for storing low-boiling liquefied gases at around atmospheric pressure outer jacket 4, the inner surface of which is lined with several plates 2 delimiting the container space which are held at a distance on the outer jacket 4 by flexible fastening means. These flexible fastening means allow the panels 2 to expand laterally. As well as F i g. 2 shows, each plate 2 comprises an outer one facing the jacket 4 and in its edge region the fastening means connected to the liquid-impermeable cover panel 14 and an inner, likewise liquid-impermeable cover sheet 12, which between a core 10 made of a heat-insulating Include honeycomb material whose cavities defined by the core walls 27 with a foamed plastic 25 are filled.

As also F i g. 1 shows, the inner and outer cover panels of each panel 2 protrude over the edges of the Core 10. Each inner cover panel 12 is here with the inner cover panel of the adjoining one Plate flexibly connected to a liquid-impermeable container wall, the flexible connection is each formed by an intermediate piece 13 which is bent at right angles at its outer edges 21 and with the edge edges of the adjacent inner cover panels bent in the same way is welded to obtain liquid-impermeable connecting parts 18 and 19, respectively.

In a similar way, the outer cover panels 14 of the panels 2 protrude laterally over the honeycomb cores 10 and are also attached to a flexible connection in a liquid-impermeable manner. This flexible connection is each formed by an intermediate piece 15, which with its edges on the edge edges of the outer cover panels 14 of adjacent plates is welded at 20 and 22. The one from the Intermediate pieces 13 and 15 delimited and between adjacent plates 2 is space filled with insulating material 16. In the same way, the space between the rigid ones can also be used outer jacket 4 and the plates 2 spaced therefrom filled with insulating material be.

The walls 27 of the honeycomb cores 10 of the plates 2 consist of a material which is either permeable to vapors or has air ducts so that all cavities a core 10 are in communication with one another. At the edge, each core is 10 from one of the core separate sealing wall 23 laterally enclosed gas-tight, the between the two cover panels 12 and 14 of the respective plate 2 arranged and with their outer peripheral edges on the inner surface the cover panels is welded on. By providing this sealing wall 23, it is possible that To evacuate the interior of the panels 2 prior to attachment to the outer rigid shell 4, and one in particular good insulation effect of the inner wall formed from the flexibly connected panels 2, which is designated as a whole by the reference numeral 6 to achieve.

The sealing walls 23 can consist of the same material as the cover panels 12 or 14, z. B. made of aluminum, aluminum alloys, copper, magnesium, stainless steel or other metals, which maintain their suppleness and strength at very low temperatures. The sealing walls 23 can also be made of plywood, plastics reinforced with glass fibers and the like non-metallic materials.

As a rule, the liquefied gases to be stored are delimited by the inner cover panels 12 Filled container space. As an alternative to this, it is also possible to have one in this container space to bring in another container that receives the low-boiling liquefied gases. In this case, the The container wall formed from the plates 2 represents a second fuse which, if the leakage occurs, the Liquefied gases receiving inner container prevents leaking liquid with the rigid outer jacket 4 comes into contact. The wall of the inner container can in this case either consist of thin sheet metal that is supported directly against the inner cover panels 12 and thereby retains its required strength or can be so thick that a self-supporting container is created, whose wall thickness is sufficient to withstand the pressure of the liquid stored in it. This The container can then be spaced from the inner cover panels 12.

Claims (2)

Patent claims: 1.Thermally insulated container for storing low-boiling liquefied gases at around atmospheric pressure, consisting of a rigid outer jacket, the inner surface of which is thermally insulating and panels delimiting the container space are lined, each panel having an outer one. The liquid-impermeable cover panel facing the jacket, as well as an inner, likewise liquid-impermeable cover panel Cover panel comprises, which between them a core made of a porous heat-insulating Include material, the inner cover panels of the panels together to form one liquid-impermeable container wall are connected and close to the edges of each outer Cover panel on the outside of which flexible fastening means are provided, which the Keep plates spaced from the rigid outer shell and allow lateral expansion movements of the panels, and at least the inner cover panel of each panel over the edges of the The core protrudes and is flexibly connected to the inner cover panel of the adjoining panel and the space between the cores of adjacent plates below the flexible connection with heat-insulating material, in particular with foamed plastic, is filled in, and furthermore the core is made of ίο consists of a honeycomb material, the cavities of which are filled with a foamed plastic, according to patent 1 229 562, characterized in that that the walls (27) of the honeycomb material are either permeable to vapors or have openings in a manner known per se, and that the core (10) is laterally supported by a sealing wall (23) in a manner known per se is enclosed gas-tight, which is attached to the two cover panels (12,14) of the plate (2). 2. Heat-insulated container according to claim 1, characterized in that the sealing wall (23) consists of the same material as the cover panels (12,14). Considered publications:
French patent specification No. 999 143,
200 239; French additional patent specification No. 66 062 (supplement to French patent specification No. 1 070 447); British Patent No. 812,375. 1 sheet of drawings 809 569/191 7.68 © Bundesdruckerei Berlin