DE1525768A1 - Insulating layer for containers and lines, especially for fuel tanks - Google Patents

Description

Applicant:
Ing, Hannes Nouza
Vienna V., Leopold Ristergasse 5/56,
South tower

Insulating layer for containers and lines, in particular

for fuel tanks

Gas and liquid lines, as well as containers, which contain such substances are for various reasons isolated. The insulation, which can consist of one layer, but is usually composed of several layers, can pursue the purpose of the heat exchange of the vessel contents to interfere with the environment. In addition to this thermal insulation has recently been increasingly insulated of the vessels against leakage losses in the event of a leak became more important. This problem occurs mainly at petrol stations, because the fuels stored there in underground containers represent specific plant toxins, of which even small amounts, if they reach groundwater, become severe and cause long-term damage to the fields.

Another problem is the leachate that forms in the ground, the underground gas pipelines surrounds. '

The invention deals with an insulating layer,

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primarily the leakage of Sicxergas or Siek'eriquid prevents leaking pipes and containers into the environment and also creates a possibility that A vessel leaks so early to recognize that a Emptying of the same is possible before significant leakage losses have occurred.

He is particularly known for fuel tanits, the Surround the wall with a protective vessel that is filled with a Plussig-P can be filled, the change in level of which will result in a leak of the container. The container wall was designed as a double jacket for this purpose, the clear width through the installation of spacers has been ensured. Further suggestions concerned insulated concrete cups or cellars in which the fuel tank was housed together with detection devices, the sensing devices sensing and indicating a build-up of leak fluid in the cup. Apart from their costliness Such detection devices are never completely reliable and »therefore require ongoing professional maintenance and Functional test. These costs are true when training the container wall as a liquid-filled double jacket avoided. On the other hand, they are due to the acquisition costs almost outweighed that for a well-built double ,. jacketed tank must be used. In the case of intraday lines, neither one nor the other protection system is economically viable.

The invention relates to a new insulating layer for loading

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holder and lines, especially for fuel tanks, which avoids the disadvantages described and which is essentially characterized in that the vessel wall adjoining self-contained layers of synthetic resin and a reinforcing material for the same, preferably glass fibers, one of these layers is porous, by a self-contained PVC layer are separated from outer layers, at least one of which consists of fiber-reinforced synthetic resin. *

The particular advantage of the insulating layer according to the invention is that it combines the advantages of a double jacket for the desired control of the tightness of vessels with the structural advantages of conventional materials for thermal insulation. It is applied to the vessels to be insulated in the same way as is known for a heat insulating layer and is therefore not only suitable for containers of all types, but also especially for liquid and gas lines, whereby it is not only the device a permanent tightness% control, but is also a good thermal insulation and corrosion protection for the line pipe to moisture. As far as lines for gases or liquids. Due to local regulations that have to be insulated against heat or moisture, it is possible to additionally meet the requirements for the device by building up the insulating layer in the manner according to the invention

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a constant leakage check of the entire pipeline network or of parts of it without any significant ones To create additional costs.

In the drawing, the invention is based on an exemplary embodiment explained in more detail.

Layers 2 and 3, which are made of synthetic resin and a reinforcing material for the same, lie over the vessel wall 1 exist. These layers are self-contained. A PVC layer 4 lies above it as a self-contained envelope this is a layer 5 made of fiber-reinforced synthetic resin.

Among the synthetic resins used to construct the invention Insulating layer can be used, especially polyester resin because of its cheap market price, and epoxy resin because of its extraordinary hardness, which it gains during polymerisation, especially in connection with glass fibers, preferred.

As a rule, it is sufficient "if 1 to-P on the vessel wall next a synthetic resin layer 2 and directly on top of this one porous layer 3 is applied. The porous layer 3 can consist of any substance or mixture of substances that can be used as a reinforcement insert suitable for the synthetic resin of which layer 2 is made.

A preferred material is glass fibers in the mold a glass fiber felt, glass fabric or so-called

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Rowling. These are strips of glass thread, in "where warp threads and weft threads are essentially free of bonds lie on top of each other, the cohesion being guaranteed by a chain seam on the edges of the panels.

But it can also be used as a porous layer of nets, grids or any packing elements are used which allow a gas or a liquid to pass through the porous Ensure layer.

The porous layer is advantageously at a point in time f | applied to the synthetic resin layer 2, in which the latter is still sticky. When making the invention Insulating layer is then done in such a way that the cleaned vessel wall is first coated with the synthetic resin solution and the porous layer 3 is glued onto the layer 2 thus formed as the work progresses. With the termination of Polymerization in layer 2 is then layer 3 with the latter firmly connected.

Over the porous layer 3 is now a layer of ^ Polyvinyl chloride arranged. This can be done in such a way that the porous layer 3 with a sheet of plasticized PVC is wrapped and the overlaps of this film in on be welded together tightly in a known manner.

At those points where inflow and outflow lines for a control liquid, for example ethylene glycol, are to be provided on the porous layer, the PVC layer is not reinforced in a manner known per se and provided with nozzles

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see. These nozzles then penetrate the layer 5 applied last, which is advantageously made of glass fiber felt or the like soaked with synthetic resin. consists.

To attach them to the PVC layer 4 a
Synthetic resin layer are painted on, which is covered with the reinforcement material while it is still moist. This
is then impregnated with the synthetic resin.

But it is also possible to lay out the layer 5 in layers Fiberglass veils that have either already been soaked with synthetic resin or coated with synthetic resin after being applied will build.

As soon as the layer 5 has polymerized, it can still provided with a top layer, e.g. painted.

It goes without saying that the thickness of the layers depends in each case on the specific requirements with regard to worm and moisture insulation as well as tightness control.

Instead of one layer, several can be used Layers may be provided.

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Claims (1)

Pa t e η t a η s ρ r ü c h e: 1. Insulating layer for containers and lines, especially for fuel tanks, characterized in that on the wall (1) adjoining, self-contained layers (2, 3) made of synthetic resin and a reinforcing material for the same, preferably glass fibers, with one of these layers is porous, thanks to a self-contained PVC layer (4) ™ are separated from outer layers (5), of which at least one made of fiber-reinforced synthetic resin. 2. Insulating layer for containers and pipes, in particular for fuel tanks according to claim 1, characterized in that the synthetic resin is a polyester resin. 3rd insulation layer for containers and pipes, especially * special for fuel tanks according to claim 1, characterized in that that the synthetic resin is an epoxy resin. 4. insulating layer for containers and conduits, and in particular m sondere for fuel tanks according to claim 1, 2 or 3, characterized in that the wall with a resin layer (2) is covered on which a porous layer (3) made of glass fibers which is covered by the PVC layer (4), 5. Insulating layer for containers and pipes, in particular for fuel tanks according to claim 4, characterized in that that the porous layer consists of fiberglass felt. - 7 - 909885/0424 ι .. insulating layer for containers and lines, in particular for fuel tanks according to claim 4, characterized in that the porous layer consists of a glass fiber fabric. - 7. insulating layer for containers and lines, inebe- όo'.iere for propellant tanks according to claim 4, characterized in that the ρ or ö Be layer of GlaiBfadenbahnen (Rowling) is uuigebaut in which the warp and weft threads are essentially free of bonds lie on top of each other, with the cohesion guaranteed by each e-iue warp seam on the edges of the panels . «Is te \ is. - -> ■ ', T ho; . * '^ s'; ^v : iaht for containers and pipes, ineb- . ε - ^ "aa <ί. ':' ir Trei whether tofi'tanKs according to one of claims 1 to 7 _f characterized in that the pore volume of the porous Schicht.vor satisfies a liquid 1st. 909885/0424