DE6607452U - THERMAL INSULATION BODY FOR ELECTRIC HOT WATER TANK - Google Patents

Description

Thermal insulation body for electrical hot water storage tanks

For the thermal insulation of hot water storage tanks, one has in many cases Insulation body from so-called. Glass floss related «Recently it has been found that plastic foam can be used for this purpose is more beneficial in some ways. For example, has plastic Polyurethane foam (trade name: Hartmotopren) has a significantly lower thermal conductivity than glass wadding. If therefore an insulation body made of Ilartmoltoprene should have the same thermal insulation strength as a body made of glass wadding, so he needs a much smaller wall thickness.

The production of a thermal insulation body, its wall thickness is relatively low at least in places, but leads to difficulties when using the so-called. Foaming process. The reason for this is that when the body is foamed, the foam is difficult due to constrictions in the foam mold, or the room to be foamed can penetrate.

The innovation, which relates to a thermal insulation body made of plastic foam for electrical hot water storage tanks, avoids these difficulties in that the body is composed of partial bodies in order to achieve thin-walled foaming points is. It can be advantageous that the partial bodies are connected to one another, e.g. by welding, gluing, etc.

tin a dismantling of the memory, e.g. for the purpose of repairs, On the other hand, to facilitate it, it can also be beneficial since that the partial bodies are not adhered to each other and from are enclosed in an outer housing.

According to a further feature of the .New, the partial bodies engage with joints in each other.

VPA 64/5281

The innovation is explained below with reference to the drawing, for example. Show the

Fig * i and -3 the composition of a thermal insulation body from two sub-bodies, while

Fig. 2 explains in which iveise the part body with joints interlock.

The container shown in section in Fig. 1 has an inner container 1 receiving the liquid with the V / andfläehe 2 and an outer housing 3, a thermal insulation body being arranged in the cavity between the uand 2 of the inner container 1 and the outer housing wall 3. The container also has on its lower side an opening _t 6, the load-bearing by an electrical heating means and the inflow and outflow tubes flange can be closed, which is not shown in the drawing.

As the thickness of the insulation body when using plastic foam (e.g. Ilartinol toprene) can be relatively small, so particularly thin-walled areas result, which are denoted by a in FIG. 1. Is in the cavity between the outer housing 3 and the wall surface 2 of the inner container Kanststoffscliaua limited, so the foam cannot or only imperfectly through the constrictions a of the cavity between the outer housing and the inner container advance. There is a risk that the Sehauia will suffer from the disfigurement a "stuck".

In order to counter this difficulty, the insulating body in FIG. 1 is composed of the partial bodies 4 and 5. Dal> ei is that Division into the sub-bodies chosen so that these - purposeful- | moderately in special forms - can be produced well by foaming. I.

1 The partial bodies can be cut open in special forms, | which are formed so that the part of the body after completion of the f

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VPA 64/5281

Foaming process can be removed from the mold. Also on Known mold release agents can be used here.

never explained Fig. 2, the body parts 4 and 5 engage with joints into each other.

For better fitting of the partial bodies into the outer housing, it can be expedient, also the outer surface of the part body with joints or ribs, as explained in Fig. 3:

In the container shown in Fig. 3 with inner container 10 and Outer housing 11, the insulation body arranged between the two is composed of the scliale-like partial bodies 12 and 13. The sub-bodies 12 and 13 have grooves or recesses b on their surface facing the outer housing. This measure makes it much easier for the insulation body to be pushed in and fitted into the outer housing.

The thermal insulation body according to the innovation is not only for electric hot water storage tanks, but generally applicable for various types of hot animals *

6 protection requirements
?, Figures

Claims (6)

k t * t ι n -A- VPA 64/5281 protection claims ί- * Thermal insulation body. made of plastic foam for electric hot water storage tank j characterized in that the body is attached to achieve thin-walled Aufschäuastellen from partial bodies ζus. 2. Thermal insulation body according to claim 1, characterized in that that the partial bodies are connected to one another, e.g. by welding, gluing, etc. 3. Thermal insulation body according to claim ±, characterized in that that the bodies are not adhered to one another and are enclosed by an outer housing. 4. Thermal insulation body according to one of claims 1 Ms 3, characterized in that the partial bodies interlock with joints. 5. Thermal insulation body according to one of claims 1 to 3, characterized in that the sub-bodies on their the outer housing or the inner container of the electrical hot \ vasserspeiehers facing surface are provided with grooves. 6. Thermal insulation body according to one of claims 1 to 3, characterized in that the sub-bodies on their the outer housing or the inner tank of the electric hot water tank facing sides are provided with protruding ribs.