DE202023001869U1 - Device for accommodating radiant energy conversion systems - Google Patents

Abstract

Device for accommodating a radiant energy conversion system in a pillared construction with a minimum distance between the rising posts (3, 4) and wherein the construction has at least one main beam (5) with purlins (6), characterized in that the main beam (5) is a reinforced concrete beam.

Description

A stand construction for a radiant energy conversion system (agri-PV system) that enables open-air pasture farming, arable farming use or horticultural use is claimed for protection.

Problem statement

• - ackerbauliche Nutzung (Feldfrüchte)
• - gärtnerische Nutzung (Sonderkulturen)
• - Weidewirtschaft.

The dual use of land for both the generation of electrical energy and the production of food products is in social interest. For this purpose, the legislature has developed DIN SPEC 91434, which focuses on agricultural use. This is also justified because the land represents the farmers' livelihood. Agricultural use can take place in three ways:

• - agricultural use (field crops)
• - horticultural use (special crops)
• - Pasture farming.

When it comes to the dual use of land, the existing agricultural structures are of crucial importance.

Agricultural use is predominantly carried out over large areas using large-scale technology. The technical costs for large-scale solar systems are disproportionate to the benefits that can be achieved.

Horticultural use remains limited to a few specialist businesses.

Pasture farming is carried out on a smaller scale, there is a larger scope of application and the technical requirements are relatively easy to manage due to the smaller dimensions.

The previously known substructures for PV systems have been based exclusively on the requirements of the solar industry and consist almost exclusively of steel profiles.

The publication DE 20 2022 105 950 U1 describes a framework for supporting photovoltaic modules, in which module support profiles are used that can drain away rainwater by providing slotted hollow profiles. The disadvantage here is that design-related cross struts and stiffeners restrict the movement of grazing animals and there is a risk of injury and strangulation.

The state of the art of DE 20 2021 104 628 U1 describes a support system for holding photovoltaic modules made of ground posts and support strips. Due to the C-profiles used, this system is also unsuitable for pasture farming due to the risk of injury and strangulation.

From the DE 10 2010 002 873 A1 It is known to equip a noise barrier in combination with photovoltaic modules. The noise barrier is preceded by a concrete block foundation. The noise barrier also stands on a block foundation.

Requirements for an agri-PV system for pasture farming

• • muss die Mindesthöhe 2,10 m betragen,
• • darf der Flächenverlust 10 % nicht übersteigen,
• • muss der landwirtschaftliche Ertrag mindestens 66 % des Vorertrags betragen,
• • muss die Konstruktion rückstandslos rückbaubar sein,

According to DIN SPEC 91434

• • the minimum height must be 2.10 m,
• • the loss of area must not exceed 10%,
• • the agricultural yield must be at least 66% of the previous yield,
• • the construction must be able to be dismantled without leaving any residue,

• • Die Abstände zwischen den aufstrebenden Pfosten sollen möglichst groß sein.
• • Die Pfosten müssen tiergerecht und stabil sein.
• • Die Gründung der Pfosten muss sicher erfolgen.
• • Die Konstruktion muss flexibel sein und sich jeder Fläche und Ausrichtung anpassen können.
• • Die Belichtungsverhältnisse müssen variabel gestaltet werden können.
• • Eine Mahdpflege mit Gartentechnik muss möglich sein.
• • Die Tierwohlrichtlinien (Pferd, Rind, Schaf, Schwein, Geflügel) für die Freilandhaltung müssen eingehalten werden.

Further demands are:

• • The distances between the rising posts should be as large as possible.
• • The posts must be animal-friendly and stable.
• • The foundation of the posts must be secure.
• • The construction must be flexible and able to adapt to any surface and orientation.
• • The exposure conditions must be able to be designed variably.
• • Mowing maintenance using garden technology must be possible.
• • The animal welfare guidelines (horse, cattle, sheep, pig, poultry) for free-range farming must be adhered to.

It is therefore the object of the invention to create a device for attaching radiant energy conversion systems that enables agricultural use, in particular pasture farming, below the structure and thereby meets the minimum requirements for animal welfare.

This task is solved with a device according to patent claim 1. Advantageous embodiments of the device are the content of the dependent patent claims.

The device according to the invention consists of a main support (5) made of reinforced concrete. The static system is - beams on two supports with two cantilever arms. The rising posts (3,4) are basically made of reinforced concrete. The distance between the columns in the longitudinal direction is advantageously 4.50 m. In the transverse direction between the supports (3,4) the distance is at least 4.00 m. The distance between the rows of supports is at least 5.00 m and varies according to the lighting requirements. This ensures that an east-west orientation and/or a south orientation can take place. The purlins (6) are advantageously made of wood or steel profiles, depending on the static requirements.

Another advantage is that the construction can be easily supplemented (wall cladding, roof covering).

• 1 Hauptträger (5) auf 2 Stützen (3,4) mit 2 Kragarmen, als Pultdach, für die Südausrichtung (einzeln, stehend)
• 2 Hauptträger (5) auf 2 Stützen (3,4) mit 2 Kragarmen, gegenständig und satteldachähnlich, für die Ost-Westausrichtung

The features essential to the invention are disclosed in the drawings:

• 1 Main beam (5) on 2 supports (3.4) with 2 cantilevers, as a pent roof, for south orientation (single, standing)
• 2 Main beam (5) on 2 supports (3,4) with 2 cantilevers, opposite and gable roof-like, for east-west orientation

Reference symbol list

1

foundation

2

foundation

3

support

4

support

5

main beam

6

Purlins

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202022105950 U1 [0008]
• DE 202021104628 U1 [0009]
• DE 102010002873 A1 [0010]

Claims (12)

Device for accommodating a radiant energy conversion system in a stand-alone construction with a minimum distance between the rising posts (3, 4) and wherein the construction has at least one main beam (5) with purlins (6), characterized in that the main beam (5) is a reinforced concrete beam. Device according to Patent claim 1 , characterized in that the distance between the rising posts (3,4) is at least 4.5 m in the longitudinal direction and at least 4.0 m in the transverse direction and is variable between the rows. Device according to one of the aforementioned patent claims, characterized in that the static system is a support on two supports with two cantilever arms. Device according to one of the aforementioned patent claims, characterized in that the main support (5) has a minimum height of 2.10m. Device according to one of the aforementioned patent claims, characterized in that the rising posts (3,4) are accommodated in foundations (1,2). Device according to one of the aforementioned patent claims, characterized in that an east-west orientation is possible. Device according to one of the aforementioned patent claims, characterized in that a south orientation is possible. Device according to Patent claim 5 and 6 , characterized in that an east-west orientation and a south orientation are possible. Device according to Patent claim 1 , characterized in that the construction consisting of main beams (5) and purlins (6) supports wall cladding and/or roof coverings. Device according to one of the aforementioned patent claims, characterized in that the cantilever arms are made of reinforced concrete. Device according to Patent claim 1 , characterized in that the radiant energy conversion system is a photovoltaic system (PV system). Device according to Patent claim 1 , characterized in that the radiant energy conversion system is a solar thermal system.

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