EP4141173A1 - Hose arrangement for creating a bubble curtain in water - Google Patents

Abstract

The present invention relates to a hose arrangement (100) for generating a bubble curtain (BS) in bodies of water, with at least one air hose (4) with an interior space (4b) enclosed by a wall (4a), the wall (4a) having at least in a perforation (9) made up of individual punctures (9a) is made in an upper first peripheral area (B1), from which air can escape when the interior (4b) is pressurized with compressed air, in order to form a bubble curtain (BC ), and- a ballast receptacle (20) with a longitudinally (X) extended receptacle area (8) in which an elongate weighting element (21) is accommodated Material webs (10a) and intermediate openings (10b) is encased, wherein the air hose (4) via the holding casing (10) in a connection area (15) with the ballast receptacle (20) v and the openings (10b) are positioned at least in the first peripheral region (B1) of the air hose (4) to allow air to escape from the perforation (9) in the air hose (4).

Description

The present invention relates to a hose arrangement for creating a bubble curtain in bodies of water according to the preamble of claim 1.

Such a hose arrangement is used in particular for noise protection when driving a pole into the bottom of a body of water. A so-called large bubble curtain is produced with such a hose arrangement. For this purpose, an air hose is laid around the construction site, which is fixed to the bottom of the body of water. The air hose is supplied with compressed air via at least one compressor, the air hose having a large number of holes or punctures along its length. The compressed air exits through the punctures, forming a curtain of bubbles rising from the air hose. This bubble curtain of air bubbles forms a physical and acoustically insulating barrier for the sound waves that arise during pile driving. The bubble curtains are intended to protect hearing-sensitive marine mammals such as porpoises and seals from hearing damage.

While at the beginning of the development of the system of the big bubble curtain, the air hoses were still attached to the bottom of the water by divers and after the end of the piling work they were either left behind as lost on the bottom of the water or removed again by divers the air hoses are now being positioned using a pipelay vessel. In these ships, the air hose is rolled up or spooled onto a winch, from which the air hose is spooled over the stern of the ship and deposited in a ring around the construction site on the bottom of the sea. In a known embodiment, metal cuffs are attached to the air hose at intervals over the entire length of the air hose and are connected to one another with a chain. On the one hand, the cuffs and the chain serve as ballast so that the air hose, which is filled with air during operation, remains on the bottom of the water or is fixed to the bottom of the water, and on the other hand they can act as a tension member to absorb the tensile forces that occur when laying and recovering the lines.

The prior art described above, in which cuffs and chains are used as ballast, has the disadvantage that the chain can impede the insertion and removal of the air hose into the body of water. In addition, the cuffs lying against the air hose can damage the air hose due to chafing and kinking. Furthermore, the hoses, some of which are reinforced with steel fabric inserts or similar, can only be drilled conventionally, which severely limits the variability of the holes or slots made.

In the DE 20 2013 100 564 U1 describes a hose assembly using, in one embodiment, an air hose made of a rubber or a polymer. To increase the tensile strength and pressure resistance, the air hose is provided with a fabric layer or wire mesh insert. The wall of the air hose has a large number of bores or holes. These have a diameter of about 0.5 to about 5 mm and a distance of about 100 cm to about 10 cm from each other. For a buoyancy of the air-filled To prevent the hose from falling in the water, a weighting element in the form of a chain is inserted into the air hose. Unlike a chain arranged on the outside, the chain arranged inside the air hose does not impair the ability to wind the air hose, so that long lengths of the air hose can be laid down on a winding device. However, the chain arranged in the air hose impedes the air flow within the air hose and promotes the ingress of water through the bores in the wall when the compressed air is switched off.

In the generic publications WO 2014 045 231 A2 and WO 2018/157884 A1 This disadvantage is remedied in that the air hose is connected to a ballast receptacle in a connecting area below a lower crown area and the weighting element is accommodated in this ballast receptacle, as a result of which the air flow in the air hose is no longer impeded and the hose arrangement can be reeled up and held on the bottom of the water .

In all of the above versions, the air hose is normally made of rubber or other polymer materials and the wall is reinforced by at least one additional layer of fabric to make the air hose more pressure-resistant and, above all, to ensure sufficient tensile strength to prevent damage to the air hose as a result to avoid the tensile forces occurring during operation. An air hose designed in this way must then be processed mechanically or chemically or thermally in order to be able to connect it to the ballast hose, which requires an additional processing step that could damage the air hose or at least impair the discharge of the air bubbles.

The DE 20 2014 005 397 U1 describes another possibility Formation of a bubble curtain for noise protection on a pile to be rammed into the seabed. The pole is surrounded by a structure, with a bubble curtain being provided in the space between the structure and the pole. The structure consists of a package of rings that are connected to each other by a textile fabric. The rings and the textile fabric form a tube that surrounds the pole. This air tube forms a kind of cage that reduces the flow of seawater in the space between the tube and the pole.

The object of the present invention is to provide a hose arrangement of the generic type that eliminates the disadvantages of the prior art, in particular fixes the air hose to the ballast element in a simple manner and, if necessary, protects it well from external forces and at the same time provides a uniform curtain of bubbles allows.

According to the invention, this object is achieved with a hose arrangement according to claim 1 . The dependent claims indicate preferred developments.

According to the invention, a hose arrangement is therefore provided for generating a bubble curtain in bodies of water, in which the air hose is preferably encased over its entire longitudinal extension or length or at least over 75% of its length by a holding casing with material webs and openings in between, the air hose having the holding casing, and preferably exclusively via this, is connected to the ballast receiver in a connection area and the openings are positioned at least in the first peripheral area of the air hose to allow air to escape from the perforation in the air hose.

Accordingly, an additional mesh-like or apertured sheath is provided as a "connecting element" between the air hose and the ballast receptacle. Due to its openings, this does not prevent the air from bubbling out of the air hose and at the same time can hold the air hose securely by encasing it and therefore preventing the air hose from buoying up under pressure. The holding casing can then be connected to the ballast holder under lower requirements and, according to one embodiment, even partially form it without the air hose itself being affected by this, since the mechanical and/or thermal and/or chemical effects necessary to form the connection are not related to the air hose itself, since the retaining sleeve is preferably not part of the air hose itself.

According to a first embodiment, it is provided that the holding casing is formed by a network with fibers linked to one another, in particular textile or mineral fibers, which form the material webs, and mesh-like openings in between. As a result, a sheathing that is easy to manufacture or sufficiently available and cheap can be provided, which is suitable for receiving and holding the air hose due to its mesh-like shape and also in different shapes and for different requirements, also with regard to use in water Available.

It is preferably also provided that the net is fixed with lower ends in the connection area on the ballast receiver, in particular is clamped thereto. This allows a simple connection to be made to the ballast mount, which simplifies the assembly process.

According to a second embodiment, it is provided that the retaining casing is formed by a first portion of a polymer band, preferably made of a fabric-reinforced polymer, which is folded back on itself and thereby encases the air hose, the polymer band being recessed in this way in the first portion, in particular cut out or is punched out in such a way that openings form between material webs which, when the first partial area is folded back, are positioned at least in the first peripheral area of the air hose to allow air to escape from the perforation in the air hose. As a result, an alternative possibility for the holding casing can be provided, in which the openings and material webs can be specifically adapted to the application and also to the dimensions of the air hose and the weighting element. The introduction of the openings in a correspondingly tailored polymer band is easy to carry out, for example in a punching process, with different shapes of the openings being possible. Alternatively, the material webs can also be subsequently attached to the polymer strip in the first partial area, for example by riveting or gluing. The first partial area of the polymer strip is then designed in two parts.

It can additionally be provided that the first partial area of the polymer strip covers a second peripheral area of the air hose essentially over the entire surface, with the second peripheral area preferably being imperforate. Compared to a net as a holding sheath, peripheral areas of the air hose that do not necessarily have to be exposed can remain covered, so that they are protected from damage, in particular during transport or installation of the hose arrangement on the seabed.

Preferably, it is further provided that the ballast holder is formed by a second portion of the polymer tape on folded back on itself to form the receiving portion and receive the weighting element, the first portion and the second portion being integral. Accordingly, a one-piece design of the ballast holder (second partial area) and the holding casing (first partial area) can be provided, with the partial areas forming spaces or receiving areas for the air hose or the weighting element by folding back or turning over one another and with the help of a subsequent connection process . As a result, a one-piece solution that can be precisely pre-assembled can be provided, which can only be assembled at the place of use by being folded over, which simplifies both transport and assembly (and disassembly).

Alternatively, however, it can also be provided that the ballast holder is formed by a deformable, plate-shaped element (comparable to the second partial area of the polymer band), which is folded back on itself with its edge areas in such a loop-like manner that a tubular shape with a longitudinally extended Recording area results, in which the weighting element is recorded, wherein the edge areas of the plate-shaped element are connected in the connection area with the holding casing. In contrast to the one-piece solution of the second exemplary embodiment, a two-piece solution is also conceivable, which can then be combined with a mesh or a polymer band (cf. first sub-area) as a holding sheath in order to form the hose arrangement.

Provision is preferably also made for connecting means to be arranged between the retaining casing and the ballast receptacle, the connecting means in particular being a screw connection and/or a cable-like or ribbon-like connecting means and/or nails and/or rivets and/or pilot bolts are executed. These should advantageously ensure that the ballast receptacle is connected to the respective holding casing or that, in the second exemplary embodiment, the hose arrangement folded back on one another in the respective partial areas is held together.

Preferably, it is also provided that the retaining casing rests loosely on the air hose over the entire surface or that the retaining casing is only connected to the air hose in certain areas, for example at the end and/or at intermediate positions, in particular via a material connection, e.g. a PU adhesive, or by a form-fitting and /or non-positive connection, for example a clamp or a riveted connection. This can ensure that the air hose does not twist, twist or shift longitudinally within the containment liner when installed on the seabed, exposed to ocean currents or being alternately pressurized and depressurized.

Provision is preferably also made for the hose arrangement to have a plurality of air hoses, with two air hoses that are adjacent in the longitudinal direction being connected to one another in a sealing manner via a hose coupling. In this way, a variable structure of the hose arrangement can be achieved, with the holding casing also being able to be continued via the hose coupling, depending on the design.

Fig. 1

in schematischer Weise eine erfindungsgemäße Schlauchanordnung im Einsatz,

Fig. 2

eine perspektivische Ansicht der Schlauchanordnung gemäß Fig. 1 in einer ersten Ausführungsform;

Fig. 3, 4

Querschnitte durch die Schlauchanordnung gemäß Fig. 2;

Fig. 5

eine seitliche Ansicht der Schlauchanordnung gemäß Fig. 2;

Fig. 6, 7

perspektivische Darstellungen einer Schlauchanordnung gemäß Fig. 1 in einer zweiten Ausführungsform;

Fig. 8

eine ausgerollte Darstellung der Schlauchanordnung gemäß Fig. 6.

The invention is explained in more detail below using exemplary embodiments. The accompanying drawing shows:

1

a hose arrangement according to the invention in use in a schematic manner,

2

a perspective view of the hose assembly according to FIG 1 in a first embodiment;

Figures 3, 4

Cross sections through the hose arrangement according to 2 ;

figure 5

a side view of the hose assembly according to FIG 2 ;

Figures 6, 7

Perspective views of a hose assembly according to 1 in a second embodiment;

8

an unrolled representation of the hose arrangement according to FIG 6 .

In the construction of offshore systems, such. B. wind turbines, piles 1 or pipes are driven into the seabed 3 by means of a ramming device 2 with a great deal of noise. marine mammals such as B. harbor porpoises, can suffer damage from the underwater transmitted sound waves. To avoid this, a BC (bubble curtain) is created around the pile 1 to be driven in during the piling work, which changes the physical properties of the water. As a result, the sound waves are broken several times, which reduces the volume.

In order to generate the bubble curtain BC, a hose arrangement 100, which has an air hose 4 that can be pressurized with compressed air, is placed on the seabed 3 in a ring around the pile 1 to be driven in. For this purpose, a supply ship 5 moves in an approximately circular manner around the pole 1, the hose arrangement 100 with the air hose 4 being taken from a winding drum 6 on board the supply ship 5 is drummed off. On board the supply ship 5 there is also at least one special compressor 7 with the aid of which compressed air is pressed into the air hose 4 of the hose arrangement 100 . The compressed air can be pressed in from one end of the air hose 4 or from both ends of the air hose 4 .

A first embodiment of the hose arrangement 100 oriented in the longitudinal direction X is shown in 2 in a perspective view and in the Figures 3 and 4 shown in a sectional view. Accordingly, an air hose 4 with a length L (see figure 5 ), which can be between 20 m and 30 m, for example, is provided with a wall 4a made of fabric layer-reinforced rubber or a comparable polymer material, which is surrounded or encased by a holding casing 10. The holding casing 10 generally consists of webs of material 10a between which openings 10b are formed so that parts of the air hose 4 are exposed in order to allow air bubbles to escape from the air hose 4 .

As the holding case 10 in the first embodiment according to FIGS Figures 2 to 5 a net 12 is provided, the textile and/or mineral fibers of which form the webs of material 10a, which are linked to one another at crossing points 10c, so that regular openings 10b (meshes) are formed between the webs of material 10a. Alternatively, in the second embodiment according to figures 6 , 7 and 8th provided that the holding casing 10 is formed by a first portion 13a of a fabric layer-reinforced polymer tape 13 made of a rubber or a comparable polymer material. In this exemplary embodiment, the material webs 10a and the openings 10b are produced by stamping out the polymer strip 13 in certain areas. Examples are in 6 or 7 two different shapes of the punched-out openings 10b and the remaining webs of material 10a are shown. Alternatively, the material webs 10a can also be produced separately in this embodiment, these preferably having the same or a comparable elastic material as the polymer strip 13 and are attached with their ends to the polymer strip, for example by riveting or gluing, so that the openings 10b are formed in between. The polymer band 13 is then manufactured in several parts in this first partial area 13a.

In both exemplary embodiments, the hose arrangement 100 has a ballast receptacle 20 on the underside for a weighting element 21 which is also extended in the longitudinal direction X and by means of which the hose arrangement 100 can be held on the seabed 3 . A connection between the air hose 4 and the ballast holder 20 is preferably only achieved via the holding casing 10, so that the air hose 4 itself does not have to be subjected to any additional large-area thermal and/or chemical and/or mechanical treatment. An additional adhesive connection, e.g. via a PU adhesive, can be provided between the holding casing 10 and the air hose 4 at certain points, e.g. In addition or as an alternative, a non-positive and/or positive connection between the holding casing 10 and the air hose 4 can also be provided at certain points, for example by a clamp connection or a riveted connection, for example via a blind rivet piercing the holding casing 10 and the air hose 4.

In figure 3 the hose arrangement 100 with the net 12 as a holding casing 10 is shown with dashed lines in a state in which the air hose 4 is not subjected to compressed air, whereby the air hose 4 is flattened, in particular by the water pressure acting from the environment U, the net 12 of this movement can follow (not shown for the sake of clarity). According to the illustration in 3 with solid lines, an inner space 4b of the air hose 4 is supplied with compressed air, whereupon the air hose 4 expands and assumes a round shape or an oval shape. The air hose 4 of the hose arrangement 100 with the polymer strip 13 as the holding casing 10 also behaves correspondingly in the depressurized or pressurized state.

In accordance with this, the wall 4a of the air hose 4 2 or 5 a perforation 9 is introduced on the upper side along the ridge line, for example by punching. This perforation 9 is preferably formed from the finest slit-shaped or point-like punctures 9a, which are designed in such a way that they can open automatically over a certain opening width of between 1 mm and 3 mm under certain pressure conditions acting in the interior 4b. They act as valves, so to speak, so that the pressurized air can escape from the interior 4b through the several punctures 9a into the environment U in the form of fine bubbles, in order to form a bubble curtain BC, which in figure 5 is only indicated schematically. When the compressed air is switched off or when there is no pressure, the punctures 9a of the perforation 9 close automatically and thus prevent the surrounding water from entering and the air hose 4 is flattened again by the surrounding water pressure (see Fig. 3 (dashed)).

The punctures 9a or the perforation 9 are or is in a first peripheral region B1 arranged on the upper side (see 4 ) introduced into the wall 4a in the region of the ridge line, while the wall 4a remains unperforated in a second peripheral region B2. The punctures 9a are evenly distributed in the first peripheral area B1 in the wall 4a along the longitudinal direction X, with end areas 4c (see figure 5 ) of the air hose 4 remain unperforated for the purpose of end-side sealing. Typically can as a result, one to twenty very fine punctures 9a per cm ² are formed in the wall 4a of the air hose 4 in order to form a bubble curtain BC which bubbles out uniformly in the longitudinal direction X.

The opening width or the size of the individual punctures 9a can also vary in the longitudinal direction X of the air hose 4, for example to compensate for pressure losses due to internal friction of the compressed air, for example due to larger opening widths of the punctures 9a towards the end of the air hose 4. The air hose 4 can thus also be composed of partial areas with different puncture sizes or opening widths. The perforation 9 is then designed in such a way that even with different water pressures in the area U caused by differences in the level of the seabed 3, the compressed air can bubble out equally over the air hose 4 (in the longitudinal direction X) in the form of fine bubbles.

The respective holding casing 10 surrounds the air hose 4 both in the first peripheral area B1 and in the second peripheral area B2, with the above-described escape of the air bubbles in the first peripheral area B1 not being significantly impaired due to the openings 10b (punched-out portions or meshes) in the holding casing 10. For this purpose, the openings 10b are preferably positioned in the holding casing 10 in such a way that the air hose 4 is exposed over a large area, at least in the first peripheral area B1, and the material webs 10a only cover smaller areas of the air hose 4 or the perforation 9, so that a bubble curtain BC is not formed is noticeably affected.

While the punched-out portions (openings 10b) in the polymer strip 13 of the second embodiment according to FIG 6 , 7 and 8th are set accordingly in such a way that they allow the air bubbles to escape from the punctures 9a or the perforation 9, the second peripheral region B2 of the Air hose 4 covered by the polymer tape 13. As a result, this second peripheral area B2 of the air hose 4 can be protected at the same time by the fabric layer-reinforced polymer tape 13 in order to avoid damage, in particular during transport of the hose arrangement 100 and/or during installation on the seabed 3 . The polymer band 13 thus has a dual function (fixing the air hose 4 to the ballast mount 20 and protecting the air hose 4 from external influences).

The transition between the holding casing 10 and the ballast mount 20 varies depending on the embodiment. In the first embodiment according to the Figures 2 to 5 the two lower ends 14a, 14b of the net 12 designed as a holding casing 10 converge in a lower apex region S of the wall 4a and are releasably connected to the ballast receptacle 20 in a connection region 15 over the entire longitudinal extent. In this embodiment, the ballast holder 20 is formed by an elastically deformable, plate-shaped element 20a (or in the form of a strip, comparable to the polymer strip 13) made of a rubber material or a comparable polymer material, the plate-shaped element 20a with its edge regions 20b forming a loop around the longitudinal axis folded back or bent over itself, resulting in a tubular shape running in the longitudinal direction X with a receiving area 8 . A weighting element 21 extending in the longitudinal direction X, for example a steel cable or a steel cable 21a or a chain, is accommodated in this receiving area 8 and serves to weight the hose arrangement 100 over its entire longitudinal extent and thus holds it on the seabed.

The edge areas 20b of the folded-back plate-shaped element 20a close the lower ends 14a, 14b of the net 12 in the connection area 15 essentially over the entire length L of the air hose 4 between them. A connecting means 16 is provided for mutually detachable fixing, which is formed here by a screw connection 16a, the screws being inserted through connecting holes 18 in the edge regions 20b and also through the openings 10b or meshes of the net 12. As a result, the lower ends 14a, 14b of the net 12 are clamped between the edge regions 20b and, due to the mesh-like structure of the net 12, the net 12 is also prevented from being pulled off the edge regions 20b. Alternatively, a comparable connection using nails or rivets or pilot bolts 16c (see Fig. 4 ) may be provided, wherein the connecting holes 18 can be formed in the edge regions 20b when using pilot bolts 16c with a pointed end on the front side when inserting the pilot bolts 16c themselves, which simplifies the assembly process. However, a rope-like or a band-like connecting means 16b (see Fig. figure 5 ), for example a cord, a thread or a rope, made of a textile or a metallic material for a detachable connection, which can be provided through the connecting holes 18 in the edge regions 20b of the plate-shaped element 20a and through the enclosed openings 10b or meshes in the net 12 is threaded and thereby ensures a mutual connection.

Both in the case of a screw connection 16a and in the case of a cable-like or band-like connecting means 16b, the connection between the two can also be released again in a simple manner. This facilitates the assembly and disassembly or replacement of individual components of the hose arrangement 100, for example in the event of a defect in the respective component of the hose arrangement 100.

In the second embodiment according to figures 6 , 7 and 8th the transition between the holding casing 10 and the ballast receptacle 20 takes place in a one-piece variant. Accordingly, the polymer tape 13 is as in 6 and 7 shown provided with the punched-out openings 10b in the first partial area 13a, the first partial area 13a being delimited by connecting holes 18 in an upper first edge area 13b and a middle area 13c (see Fig. 8 ). A second partial area 13d is delimited by the connecting holes 18 in the middle area 13c and by further connecting holes 18 in a second edge area 13e. By correspondingly rolling up or folding over or folding back the polymer strip 13 about its longitudinal axis, the air hose 4 can be accommodated in a space formed by the first partial area 13a and the weighting element 21 can be accommodated in a receiving area 8 formed by the second partial area 13d. This shape can be maintained by inserting the appropriate connecting means 16 (screw connection 16a or cable-like or band-like connecting means 16b or rivets or nails) into the connecting holes 18 that are aligned one on top of the other in the connecting area 15, with the punched-out openings 10b then correspondingly being above the perforation 9 of the air hose 4 lie, as in 6 and 7 shown. This simplifies the production of the hose arrangement 100 overall. When using pilot bolts 16c with a pointed end as the connecting means 16, the connecting holes 18 can also be formed directly when the pilot bolts 16c are introduced.

In principle, the polymer band 13 can also be formed in two parts, in which case the central area 13c is divided into two sub-bands. The two partial bands or partial areas 13a, 13d, which then each have connecting holes 18 at the edge, are then joined together by corresponding connecting means 16 via the connecting holes 18 in the connecting area 15, comparable to the first embodiment.

In all of the described embodiments, the hose arrangement 100 can consist of a plurality of air hoses 4 joined together in segments via a hose coupling (not shown). As a result, a hose arrangement 100 can be provided which consists of a plurality of air hoses 4 joined together in segments. Provision can be made here for the holding casing 10 to run over the hose coupling and/or to be clamped by the hose coupling in order to prevent the air hose 4 from slipping relative to the holding casing 10 .

Reference List

1

stake

2

piling device

3

Seabed

4

air hose

4a

wall of the air hose 4

4b

Interior of the air hose 4

4c

End area of the air hose 4

5

supply ship

6

winding drum

7

compressor

8th

recording area

9

perforation

9a

puncture

10

retaining sheath

10a

material webs

10b

openings

10c

crossing points

12

network

13

polymer tape

13a

first section

13b

first edge area of the polymer band 13

13c

Center area of the polymer band 13

13d

second section of the polymer band 13

13e

second edge area of the polymer band 13

14a, 14b

lower ends of the net 12

15

connection area

16

lanyard

16a

screw connection

16b

rope-like or ribbon-like lanyard

16c

pilot bolt

18

connection holes

20

ballasting

20a

plate-shaped element

20b

Edge areas of the plate-shaped element 20a

21

weighting element

21a

steel cable

100

hose assembly

B1

first peripheral area of the wall 4a

B2

second peripheral area of the wall 4a

B.C

bubble veil

L

Air hose length 4

S

lower apex of the wall 4a

u

Vicinity

X

longitudinal direction

Claims (14)

Hose arrangement (100) for generating a bubble curtain (BS) in bodies of water, with - at least one air hose (4) with an interior space (4b) enclosed by a wall (4a), a perforation (9) made up of individual punctures (9a) being made in the wall (4a) at least in an upper first peripheral region (B1). , from which air can escape when compressed air is applied to the interior (4b) to form a bubble curtain (BC) extending in the longitudinal direction (X) of the air hose (4), and - a ballast receptacle (20) with a receptacle area (8) which extends in the longitudinal direction (X) and in which an elongate weighting element (21) is accommodated, characterized in that
the air hose (4) is encased by a holding casing (10) with material webs (10a) and openings (10b) in between, the air hose (4) being connected to the ballast receptacle (20) via the holding casing (10) in a connection area (15). and the openings (10b) are positioned at least in the first peripheral region (B1) of the air hose (4) to allow air to escape from the perforation (9) in the air hose (4). Hose arrangement (100) according to Claim 1, characterized in that the holding casing (10) is not part of the air hose (4). Hose arrangement (100) according to Claim 1 or 2, characterized in that the air hose (4) is connected to the ballast receptacle (20) exclusively via the holding casing (10). Hose arrangement (100) according to one of the preceding claims, characterized in that the air hose (4) is surrounded by the retaining casing (10) over its entire length (L) or at least over 75% of the length (L) of the air hose (4). Hose arrangement (100) according to one of the preceding claims, characterized in that the holding casing (10) is formed by a network (12) with fibers linked together, in particular textile or mineral fibers, which form the material webs (10a), and mesh-like openings (10b). formed in between. Hose arrangement (100) according to Claim 5, characterized in that the net (12) is fixed with lower ends (14a, 14b) in the connection area (15) on the ballast receptacle (20), in particular is clamped thereto. Hose arrangement (100) according to any one of claims 1 to 4,
characterized in that the retaining sheath (10) is formed by a first portion (13a) of a polymer tape (13) folded back on itself and thereby sheathing the air hose (4), the polymer tape (13) in the first portion ( 13a) is cut out in such a way that openings (10b) are formed between material webs (10a), which are positioned at least in the first peripheral area (B1) of the air hose (4) when the first partial area (13a) is folded back, to allow air to escape from the perforation (9) in the air hose (4). Hose assembly (100) according to claim 7, characterized in that the polymeric tape (13) is cut or punched out in the first portion (13a) to the openings (10b) between to form the material webs (10a) or the polymer strip (13) in the first partial area (13a) is designed in several parts, the material webs (10a) in the first partial area (13a) being attached to the polymer strip (13) in this way, for example by riveting or gluing that between the material webs (10a) forming openings (10b) are in the first peripheral area (B1) of the air hose (4). Hose arrangement (100) according to Claim 7 or 8, characterized in that the first partial area (13a) of the polymer strip (13) covers a second peripheral area (B2) of the air hose (4) essentially over its entire surface, the second peripheral area (B2) preferably being imperforate is. Hose arrangement (100) according to any one of claims 7 to 9,
characterized in that the ballast receptacle (20) is formed by a second portion (13b) of the polymer tape (13) folded back on itself to form the receiving portion (8) and to receive the weighting element (21), the first portion (13a) and the second portion (13d) are made in one piece. Hose arrangement (100) according to any one of claims 7 to 10,
characterized in that the first partial area (13a) and/or the second partial area (13d) of the polymer strip (13) is and/or is formed from a fabric layer-reinforced polymer. Hose arrangement (100) according to any one of claims 1 to 9,
characterized in that the ballast holder (20) is formed by a deformable, plate-shaped element (20a) with its edge areas (20b) is folded back on itself in a loop-like manner, resulting in a tubular shape with a receiving area (8) that extends in the longitudinal direction (X) and in which the weighting element (21) is accommodated, the edge areas (20b) of the plate-shaped element (20a) are connected to the holding casing (10) in the connection area (15). Hose arrangement (100) according to one of the preceding claims, characterized in that connecting means (16) are arranged between the holding casing (10) and the ballast receptacle (20), the connecting means (16) in particular being a screw connection (16a) and/or a rope-like or a band-like connecting means (16b) and/or nails and/or rivets and/or pilot bolts (16c). Hose arrangement (100) according to one of the preceding claims, characterized in that the holding casing (10) rests loosely on the air hose (4) over its entire surface or the holding casing (10) is only connected to the air hose (4) in certain areas and/or at points, for example at the ends and/or at intermediate positions, in particular by means of a material connection, for example via a PU adhesive, and/or by means of a positive connection and/or a non-positive connection, for example by clamping or by a riveted connection.

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