DE2617629A1 - Solar water heater for mobile equipment or camping - has inflatable plastics containers mounted on frame housing absorber - Google Patents

Abstract

The solar heating device for detaining hot water is particularly used on mobile equipment being of rectangular shape and supported on inflatable containers (2). The collector itself is made of material which can be rolled up for transport. It has raised sides to support a foil (8) over the top. An absorber (7) is laid on the absorber inside the chamber (6) under the foil. The inflatable member can be semicircular to form a parabolic collector with a foil over it, enclosing an absorber tube. The flat design can be supported at a suitable angle by props or struts.

Description

Collapsible or rollable solar collector

There are known solar collectors for the production of war, mem water. These generally consist of a flat box (the rear wall of which is thick-walled = dig is isolated) and a frame. There is an absorber in the flat box water-bearing part is inserted. The box is covered with one, the size correspond to the rear wall, the pane of glass or another transparent surface, like Plexiglas or Eunststofflie.

This described embodiment of a so-called Plach collector, however Other designs, such as a parabolic collector, are also suitable due to their Construction, weight and installation for stationary use only.

In such cases, however, in which warm water is fixed and unbound, e.g. when camping or when traveling with the caravan, which should be generated, are above described systems are unsuitable because they cannot be carried.

The solution to the problem, namely to produce hot water everywhere can, be it on the CamS ping site or in the mountain hut, serves next described invention, which provides that an existing plastic material Together = a solar collector that can be put down or rolled up, has a low transport volume and -weight, easily unfolded at the place of use and by striving or inflating the collector or parts of the collector brought into shape and stabilized can be.

Two exemplary embodiments are shown below, the first embodiment, represented by Figures I and II, a flat plate collector and can be assigned to the low temperature range, i.e. for Temperatures below 1000C, compared to the design according to the figures III and IV, is similar to a parabolic collector with which one can measure water temperatures of <1000C.

The two types of collectors can be connected to a vessel, e.g. one in the caravan Permanently installed plastic vessel can be connected, which is not presented Plastic vessel takes on the function of a heat store.

But it is also provided, as shown in Figures V and VI, that the collapsible or rollable solar collector is also made of plastic Material produced water tank is assigned, so that both parts, the collector and the water tank together, a complete system for heating water by solar energy.

Further details of the embodiment, for example, emerge from the following description and claims. Make the drawings represent: Fig. I a flat plate collector in the view, Fig, II a section through the Flat plate collector according to Fig. I, Fig. III a parabolic collector in the view, Fig. IV a section through the parable collector according to Fig. III, Fig. VI the side View of a solar collector in connection with one above the Collector lying water tank, Fig. VI the side view of a solar collector with a water tank behind the collector.

The flat collector (1) is inflated by the.

Baren box-shaped container (2) from a collated or - brought rolled shape to the shape of the flat collector (1) shown.

The inflatable container (2) has an opening (3) for inflation, and a closure (4) designed in a known manner.

The container (2) is closed by a transparent film (5), so that a space (6) is created. Inside the space (6) the absorber (7) is a sets, which consists of two interconnected poles, the film (8) one Has matt black surface, and the film (9) has a reflective metallized animal Surface can have. The absorber (7) has two water connection pieces (10) and is connected in a known manner to a water supply in the circulation system.

In principle, the parabolic collector (11) is similar by a inflatable box-shaped container resembling a semicircular tub (12) formed, which is closed with a transparent (13) Fos lie.

An absorber pipe (15) is inserted inside the room (1 *). That The absorber tube is preferably made of metal and has a matt black surface on.

The parabolic inner wall (16) of the container (12) is reflective Layer provided, which concentrates the sun's rays on all sides on the absorber tube (1-5) can occur, whereby on obew ren end (17) of the absorber tube (15) A water temperature that is -100UC can occur and the possibility allows that a cooking device is connected to the absorber in the food can be cooked.

The parabolic collector can also be designed without a transparent polie (13) although this has a good stability when shaping by bracing or by air would grant.

For example, when camping, the water heating system to be operated by solar energy A collector (18) with a water tank (19) also made of plastic, connected be, so that between the collector (18) and the water tank (19) a water circula = tion can arise.

After use, the system can be emptied, folded or rolled up and thus again represents a low transport weight and volume, which can be easily stored and transported on or in a vehicle, or also would be easy to carry by hand.

L e r s e i t e

Claims (4)

Spray i, j collapsible or rollable solar collector = gate, consisting from a box-like container, an absorber embedded in the container and a transparent container wall closing the container, characterized by indicates that the solar collector is made of a plastic material, e.g. plastic film, manufactured and the box-shaped container can be inflated. 2. Collapsible or rollable solar collector according to claim 1, characterized characterized in that the box-shaped container is shaped by struts or supports is brought. 3. Collapsible or rollable solar collector according to the claims 1 and 2, characterized in that the box-shaped container is double-walled is. 4. Collapsible or rollable solar collector according to the claims 1 to 3, characterized in that connected to the solar collector movable = Lich a water tank made of plastic material is arranged.