DE3019388A1 - Solar heating system using walls or roof - has cladding panels clipped onto water circulating pipes supported by wall brackets - Google Patents

Abstract

The solar heating system with its water circulating tubes (14) mounted on a wall or roof, has supports (16) projecting from the wall (10) carrying the horizontal tubes. The wall can be covered with an insulating layer (12) and sheets (24) attached to the tubes convey heat to the liquid circulating inside them, also forming a cladding layer. Each sheet has a curved edge (23) top and bottom so that it is secured resiliently between two parallel tube runs. The sheets can be of galvanised steel, with horizontal flanges (22) projecting from the curved edges. The vertical ports may be of aluminium. In another design, brackets clip round the tubes, and aluminium cladding sheets are suspended from them. The system can be modified for cladding balconies, or incorporated in radiators mounted on the balconies.

Description

Device for heating a liquid by means of

Solar energy Description The invention relates to a device for heating a liquid by means of solar energy, in particular in the form of a facade cladding for building exterior walls and roofs.

There are known solar panels that generate solar energy in particular for heating domestic water.

These collectors consist of stable plate-shaped bodies that are provided with parallel channels through which the water flows, carrying the heat of the sun absorbs and releases it to the domestic water via a heat exchanger. Collectors of this Art are mounted on the roofs of buildings and they often replace a part of the tiled roof.

Such solar collectors are used for the vertical outer walls of buildings hardly usable because they are difficult to assemble and cause high costs, In addition, they are not approved by many building authorities for optical reasons.

The invention is therefore based on the object of providing a device of to make the type mentioned so that they can be in a simple manner, in particular on the outer walls of buildings, and at the same time a facade cladding forms.

According to the invention this is achieved in that the or the External walls of the building -and / or on the roof a register of pipes, which from the liquid to be heated is arranged to flow through, that each tube substantially over its length and at least over part of its circumference of a tight-fitting sheet metal jacket, e.g.

made of galvanized sheet steel or copper, enclosed which is provided with a foot extending in the longitudinal direction of the pipe to which facade strips, e.g. made of aluminum, are attached.

With such an arrangement, the thermal energy of solar radiation transferred from the facade strips via the feet to the pipes, which in these flowing water is heated and can be used accordingly. The facade strips serve to absorb and transmit the thermal energy of solar radiation as well as for cladding the outer walls of the building in question. This is special This is also an advantage when renovating old buildings in one go new outer walls and at the same time a system for the extraction and utilization of Can receive solar energy. The pipe register can easily be connected to the the respective dimensions of the house walls are adapted while leaving out the window areas.

The facade strips are advantageously molded directly onto the feet or attached, wherein they can run in the longitudinal direction of the tubes.

According to another embodiment, the feet are incised Provided, in which the facade strips can be hung transversely to the longitudinal direction of the pipes are.

The sheet metal jacket surrounding the tubes is for the purpose of simplicity Assembly is preferably designed in two parts.

In a further embodiment of the invention, it is proposed that the parapets to provide balconies and terraces with devices for absorbing solar heat, Preferably radiators, in particular made of aluminum, can be used for this purpose.

Exemplary embodiments of the invention are provided below explained in detail with reference to the drawing - in FIG. 1 schematically - in section shows part of a house exterior wall with solar panels and facade strips.

Fig. 2 shows in section a variant of the embodiment according to FIG. 1.

FIG. 3 shows the embodiment according to FIG. 2 in an oblique view.

Fig. 4 shows the embodiment according to Fig. 3 in a side view with hooked-in Facade strips.

Fig. 5 shows an embodiment for balcony parapets.

6 to 8 show further embodiments of the facade strips Fig. 1 shows schematically in section an outer wall 10 of a building. The wall 10 is coated on its outside with thermal insulation 12, e.g. panels made of rock wool.

On the wall 10 are by means of only schematically shown brackets 16 a plurality of tubes 14 attached, which together form a tube register, and all the pipes 14 are connected to a common feed line, not shown, and connected to a common drainage line, also not shown. In the The illustrated embodiment, the tubes 14 run horizontally. Through the tubes a liquid, in this case water (possibly with antifreeze), pumped, which is supposed to absorb the solar energy.

The tubes 14 are over part of their circumference and substantially enclosed over its entire length by a jacket 18, the aim being that the jacket 18 encloses the tubes over as large a part of their circumference as possible.

In the embodiment shown, the jacket 18 is made of two Half-shells 23 are formed, the free longitudinal edges 20 of which are bent slightly outwards, so that the half-shifts are more easily pushed over the tube 14 and clamped can. The half-shells 23 merge into a web 22 that extends from the wall 10 is directed outwards and the webs 22 go over into a rail or lamella 24, which is parallel to the wall 10 of the building and in the illustrated embodiment runs parallel to the tubes 14 and thus horizontally.

In other words, each rail 24 is horizontal at both of them extending edges with a web 22 bent substantially at right angles provided, and each of these webs goes into a half-shell 23, so that the lamella or rail 24 by means of its two half-shells 23, as shown in Fig. 1, can be inserted and clamped between two tubes 14. The dimensions are of course chosen so that the half-shells 23 -under sufficient Voltage is applied to the tubes 14.

The radiant energy incident on the outside of the rails 24 or thermal energy is from the rails 24 via the webs 22 and the half-shells 23 transferred to the tubes 14 and thus to the water flowing through them. the Thermal energy from the water can then be used in a heat exchanger to heat domestic water are released, whereupon the water is pumped back into the circuit.

To absorb any condensation water can be at the lower end of the wall 10, i.e. at the bottom, a gutter 36 can be provided.

In the embodiment of FIG. 2, the jacket 18, which is the pipe 14 encloses, also formed from two half-shells 23, but their webs here lie against each other and one Form foot 26, the two edge strips 27, which run transversely to the webs 22 and parallel to the wall 10.

In other words, each web 22 is bent at right angles to it Edge strip 27 is provided which extends over the entire length of the web.

Fig. 3 shows an oblique view of the tube 14 and the -ihn enclosing Jacket 18 together with the foot 26 and the edge strips 27.

As shown, the edges 20 of the half-shells 23 are also somewhat here bent outwards in order to make it easier to slide the jacket 18 over the tube 14.

The foot 26 is now in this embodiment both in the area of his Web 22 as well as in the area of the edge strips 27 provided with incisions 28, 29, which run transversely to the longitudinal direction of the tube 14 and in the longitudinal direction of the foot are formed at intervals. Each of the cuts 28 extends through both Edge strips 27 and each of the incisions 29 is in the two adjacent webs 22 formed.

Slats or rails 30 are now clamped into these incisions 2, 8, 29 or clamped, the rest of the rails 24 of FIG. 1 with regard to their Function. As FIG. 4 shows, the rails 30 are on both longitudinal edges provided with a rounded upwardly curved edge 32 and grip these edges 32 into the incisions 29 formed in the webs 22.

The incisions 29 are slightly wider at their upper end, so that two opposite rounded noses 31 are formed, over which the upturned edges 32 of the Rails 30 overlap so that the rails 30 are held by these lugs 31.

The rails 30, which are also like the rails 24, expediently made of aluminum, have sufficient elasticity that the bent up Edges 32 can be pushed over the noses 31 of the foot 26 and then as a result spring back a little of their elasticity and thus under tension on the noses 31 issue.

In the embodiment according to FIGS. 2, 3 and 4, the Rails ao run transversely to the pipes 14, i.e. when the pipes are laid horizontally the rails 30 perpendicular.

Also in the embodiment according to FIGS. 2 to 4, the solar energy received by the fins 30 and over the feet 26 and the jacket 18 on the tubes 14 and thus transferred to the water flowing through it.

In this way you get both a facade cladding for the Exterior walls of buildings, as well as a device for exploiting the Solar energy. The device according to the invention is also particularly suitable for the renovation of old buildings, where the outer walls are usually renewed anyway. or be redesigned. Of course, the device according to the invention but can also be used for new buildings.

The embodiments described are in conjunction with vertical Exterior walls of buildings have been used, but they are also suitable for roofs, in this case, the roof substructure is denoted by the reference numeral 10. in particular On roofs, but also on vertical surfaces, care must be taken that there is no rainwater enters through the slats into the space between them and the thermal insulation 12, what for possibly the gap 34 - between the rails 24 and 30 is tightly closed.

If the device is used on roofs, then precaution is also required to ensure that any condensation that may have formed can be drained away.

The device according to the invention can also be used, for example, in connection with the parapets of terraces and balconies are used, but are suitable for this also conventional radiators, as in-Fig. 5 is shown schematically. Fig. 5 shows is schematically, shown ''.

Fig. 5 shows schematically a balcony floor 40 with a railing or a parapet 42 which is attached to the balcony floor 40 by means of brackets 44. A radiator 46 is now located on the outside of the parapet 42 by means of brackets 48 attached, which has an inlet 50 and an outlet 52.

Below the radiator 44 and the parapet 42 is a drainage channel 54 arranged, which has an edge 56, which, up to the surface of the balcony floor 40, as shown in Fig. 5, is pulled up.

The radiator 46, since it works without overpressure, with relative can be made thin wall thickness is suitable for a non-illustrated Feed line and a drain line (not shown) for circulating water connected, which absorbs solar energy and e.g. via a heat exchanger gives off to heat domestic water.

In principle, most modern radiators are suitable for this Purpose, but for optical reasons, radiators should be as flat as possible, especially use those made of aluminum.

If necessary, such radiators can also be used directly instead of the parapet be, in this case both the function of a parapet and the of a solar panel.

Fig. 6 shows a further embodiment of a facade strip, wpbei the slats or rails 58 shown there in connection with the foot 26 according to the Figs. 2, 3 and 4 can be used. The rails 58 are inserted into the incisions 28, 29, as is the case in connection with the rails 30 in FIG. 4 is shown, but with the cuts 29 the shape of the edges 60 of the rails 58 is adapted accordingly.

Fig. 7 shows rails 62 forming facade strips, the edges of which 64, 66 overlap in such a way that they have a closed channel for the discharge of Form rainwater, as shown, the edge 64 of the respective lower rail 62 overlaps the edge 66 of the respective upper rail 62.

The rails 62 can also be in connection with the feet 26 of the Embodiment according to FIGS. 2 to 4 are used, in which case the Pipes 14 are laid vertically and the rails 62 are laid horizontally.

In the channel between the overlapping edges 64, 66 can a plastic profile 68 can be inserted as an additional seal. This plastic profile can also be used as an anti-theft device to prevent the slats or rails 62 from being pulled out serve, with, if the emphasis is placed on this, instead of the plastic profile a metal tube or metal rod can also be inserted between the edges 64, 66 can.

Appropriately, in the embodiment according to FIG. 7, the edge 66 of the respective upper lamella 62 bent slightly upwards, so that a drip edge 70 is formed.

The embodiment of Fig. 8 shows the same slats or rails 62 as in FIG. 7, but here the rails 62 serve as a roof cover and run obliquely from top to bottom, while the associated pipes of the pipe register run horizontally.

The channels formed by the edges 64 and 66 form in this case inclined rain gutters to drain away rainwater.

The slats or rails are expediently made of aluminum, but they are also suitable - both for facades and for pitched roofs - galvanized Steel or copper.

Claims (5)

Device for heating a liquid by means of Solar energy, in particular facade cladding for external walls and roofs of buildings, due to the fact that on one or more outer walls (10) of the building and / or on the roof of which a register of pipes (14), which from the liquid to be heated is flowed through, it is arranged that each tube (14) substantially over its length and at least over part of its circumference of a tight-fitting sheet metal jacket (18), e.g. made of galvanized sheet steel is provided with a foot (22, 26) extending in the longitudinal direction of the tube (14) on which rails (24, 30), e.g. made of aluminum. 2. Device according to claim 1, characterized in that g e k e n n -z e i c h n- e t that the rails (24) are molded or attached directly to the feet (22) and that they run in the longitudinal direction of the tubes (14). 3. Apparatus according to claim 1, characterized in that g e k e n n -z e i c h n e t that the feet (26) are provided with incisions (28, 29) into which the rails (30) can be suspended transversely to the longitudinal direction of the tubes (14). 4. Device according to one of the preceding claims, characterized in that g e k e n n n z e i c h n et that the sheet metal jacket (18) surrounding the tubes (14) Is formed in two parts. 5. The device according to claim 1, for balcony and terrace parapets, through this it is not noted that on the outside of the parapets (42) or instead of the parapets radiators (46), e.g. made of aluminum, are arranged, which are connected to a Inlet (50) and an outlet (52) for the circulation of the absorbing solar energy Liquid are equipped.