EP4141173B1 - Hose arrangement for creating a bubble curtain in water - Google Patents

Description

The present invention relates to a hose arrangement for generating a bubble curtain in waters according to the preamble of claim 1.

Such a hose arrangement is used in particular for sound insulation when driving a pile into the bottom of a body of water. With such a hose arrangement, a so-called large bubble curtain is created. To do this, an air hose is laid around the construction site and is attached 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 large bubble curtain system, the air hoses were still attached to the bottom of the water by divers and after the ramming work was completed they were either left as lost on the bottom of the water or removed again by divers the air hoses are now positioned using a laying vessel. On these ships, the air hose is rolled up or reeled onto a winch, from which the air hose is reeled off over the stern of the ship and placed on the bottom of the water in a ring around the construction site. In a known embodiment, metal sleeves are attached to the air hose at intervals along 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 secured 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 hinder the introduction and discharge of the air hose into the water. In addition, the cuffs attached to the air hose can cause damage to the air hose due to chafing and kinking. Furthermore, the hoses, some of which are reinforced with steel mesh inserts or similar, can only be drilled conventionally, which greatly limits the variability of the holes or slots made.

In the DE 20 2013 100 564 U1 A hose arrangement is described, in which, in one embodiment, an air hose is used that is 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. To ensure buoyancy of the air-filled To prevent the hose from entering 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 affect the windability of the air hose, so that large lengths of the air hose can be placed on a winding device. However, the chain arranged in the air hose hinders the air flow within the air hose and promotes the penetration of water through the holes 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 connection area below a lower apex area and the weighting element is accommodated in this ballast receptacle, whereby the air flow in the air hose is no longer hindered and the hose arrangement can be drummed up and held on the bottom of the water .

In all of the above-mentioned versions, the air hose is usually made of rubber or other polymer materials and the wall is reinforced by at least one additional layer of fabric in order to make the air hose more pressure-stable and, above all, to ensure sufficient tensile strength to prevent damage to the air hose to avoid the tensile forces that occur 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 possibly 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 sound insulation on a pile to be driven into the seabed. The pile is surrounded by a structure, with a bubble curtain being provided in the space between the structure and the pile. The structure consists of a package of rings connected to each other by a textile fabric. The rings and the textile fabric form a tube that surrounds the post. This air tube forms a kind of cage that reduces the flow of seawater in the space between the tube and the pole. Next shows DE 10 2017 104457 A1 a hose arrangement corresponding to the preamble of claim 1.

The object of the present invention is to provide a generic hose arrangement which 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 against external forces and at the same time provides a uniform bubble curtain enabled.

This object is achieved according to the invention with a hose arrangement according to claim 1. The subclaims indicate preferred further developments.

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

Accordingly, an additional mesh-like sheathing or sheathing provided with openings is provided as a “connecting element” between the air hose and the ballast holder. Thanks to its openings, this does not impair the air being bubbled 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 buoyancy under pressure. The holding casing can then be connected to the ballast holder under lower requirements and, according to one embodiment, can even partially form it without the air hose itself being influenced, since the mechanical and / or thermal and / or chemical effects that are necessary to form the connection are not related to the air hose itself, since the holding casing 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 interconnected fibers, in particular textile or mineral fibers, which form the material webs, and mesh-like openings between them. This makes it possible to provide a casing that is easy to manufacture or sufficiently available and inexpensive, which is suitable for receiving and holding the air hose due to its mesh-like shape and is also available in different shapes and for different requirements, also with regard to use in water Available.

Preferably it is further provided that the net is fixed with lower ends in the connection area to the ballast receptacle, in particular is clamped therewith. This allows a simple connection to be made to the ballast holder, which simplifies the assembly process.

According to a second embodiment, it is provided that the holding casing is formed by a first portion of a polymer band, preferably made of a fabric layer-reinforced polymer, which is folded back on itself and thereby encases the air hose, the polymer band being left out, in particular cut out, in the first portion or is punched out so that openings are formed between material webs which, in the folded-back state of the first partial region, are positioned at least in the first peripheral region of the air hose to enable air to escape from the perforation in the air hose. This makes it possible to provide an alternative option for the holding casing, in which the openings and material webs can be specifically adapted to the application and also the dimensions of the air hose and the weighting element. Introducing the openings into 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 band in the first partial area, for example by riveting or gluing. The first portion of the polymer tape is then designed in two parts.

It can additionally be provided that the first partial region of the polymer tape essentially covers the entire surface of a second peripheral region of the air hose, the second peripheral region preferably being unperforated. Compared to a net as a holding casing, peripheral areas of the air hose that do not necessarily have to be exposed can remain covered, so that they are protected from damage, particularly during transport or installation of the hose arrangement on the seabed.

Preferably it is further provided that the ballast receptacle is formed by a second portion of the polymer tape, which is on is folded back to form the receiving area and to accommodate the weighting element, the first portion and the second portion being made in one piece. Accordingly, a one-piece design of the ballast holder (second sub-area) and the holding casing (first sub-area) can be provided, with the sub-areas forming spaces or receiving areas for the air hose or the weighting element by correspondingly folding back or folding over one another and with the aid of a subsequent connection process . This makes it possible to provide a one-piece solution that can be precisely pre-assembled and can only be assembled at the place of use by turning it over, which simplifies both transport and assembly (and also disassembly).

Alternatively, it can also be provided that the ballast receptacle is formed by a deformable, plate-shaped element (comparable to the second portion of the polymer tape), which is folded back on itself in a loop-like manner with its edge regions in such a way that a tubular shape with a lengthwise expanded Receiving area results in which the weighting element is received, the edge areas of the plate-shaped element being connected to the holding casing in the connection area. In contrast to the one-part solution of the second exemplary embodiment, a two-part solution is also conceivable, which can then be combined with a net or a polymer tape (see first part) as a holding casing in order to form the hose arrangement.

Preferably it is further provided that connecting means are arranged between the holding casing and the ballast receptacle, the connecting means in particular being a screw connection and/or a rope-shaped or a band-shaped connecting means and/or nails and/or rivets and/or pilot bolts are carried out. 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 onto one another in the respective partial areas is ensured to be held together.

Preferably, it is further provided that the holding casing rests loosely over the entire surface of the air hose or that the holding casing is only partially connected to the air hose, for example at the end and/or at intermediate positions, in particular via a cohesive connection, e.g. a PU adhesive, or by a form-fitting and /or non-positive connection, for example a clamp or a rivet connection. This can ensure that the air hose in the support casing does not twist or twist or shift longitudinally when it is installed on the seabed, is exposed to the ocean current or is alternately transferred to the pressurized and depressurized states.

Preferably, it is further provided that the hose arrangement has a plurality of air hoses, with two air hoses adjacent in the longitudinal direction being sealingly connected to one another via a hose coupling. This allows a variable structure of the hose arrangement to be achieved, whereby the holding casing can also 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:

Fig. 1

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

Fig. 2

a perspective view of the hose arrangement according to Fig. 1 in a first embodiment;

Fig. 3, 4

Cross sections through the hose arrangement according to Fig. 2 ;

Fig. 5

a side view of the hose arrangement according to Fig. 2 ;

Fig. 6, 7

Perspective views of a hose arrangement according to Fig. 1 in a second embodiment;

Fig. 8

a rolled-out representation of the hose arrangement according to Fig. 6 .

When constructing offshore facilities, such as B. wind turbines, piles 1 or pipes are driven into the seabed 3 using a pile driving device 2 with great noise. Marine mammals, such as B. porpoises can suffer damage from the sound waves transmitted underwater. In order to avoid this, a bubble curtain BC (Bubble Curtain) is created around the pile 1 to be driven in during the pile driving work, which changes the physical properties of the water. This causes the sound waves to be broken several times, reducing the volume.

To produce the bubble curtain BC, in the present case a hose arrangement 100, which has an air hose 4 that can be supplied 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 travels approximately in a circle around the pole 1, with the hose arrangement 100 with the air hose 4 coming from a winding drum 6 located 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 help 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 FIG Fig. 2 in a perspective view and in the Figures 3 and 4 shown in a sectional view. Accordingly, an air hose 4 is of length L (see Fig. Fig. 5 ), which can be between 20m and 30m, for example, 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 material webs 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 a holding casing 10 in the first embodiment according to Figures 2 to 5 a network 12 is provided, the textile and / or mineral fibers of which form the material webs 10a, which are linked to one another at crossing points 10c, so that regular openings 10b (meshes) are formed between the material webs 10a. Alternatively, in the second embodiment according to Figures 6 , 7 and 8th It is 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 created by punching out the polymer band 13 in areas. Examples are in Fig. 6 or Fig. 7 two different shapes of the punched out openings 10b and the remaining material webs 10a are shown. Alternatively, the material webs 10a can also be manufactured separately in this embodiment, These preferably have the same or a comparable elastic material as the polymer band 13 and are attached with their ends to the polymer band, for example by riveting or gluing, so that the openings 10b are formed between them. The polymer band 13 is then manufactured in several parts in this first partial area 13a.

On the underside, the hose arrangement 100 in both exemplary embodiments has a ballast holder 20 for a weighting element 21, which is also extended in the longitudinal direction X, 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 receptacle 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, for example via a PU adhesive, can be provided at certain points, for example at the end and at selected intermediate positions, between the holding casing 10 and the air hose 4, in order to avoid slipping or twisting of the air hose 4 within the holding casing 10. Additionally or alternatively, a non-positive and/or positive connection can also be provided at certain points between the holding casing 10 and the air hose 4, for example by a clamp connection or a rivet connection, for example via a blind rivet piercing the holding casing 10 and the air hose 4.

In Figure 3 is the hose arrangement 100 with the network 12 as a holding casing 10 shown with dashed lines in a state in which the air hose 4 is not pressurized with compressed air, whereby the air hose 4 is compressed flat in particular by the water pressure acting from the environment U, the network 12 of this movement can follow (not shown for clarity). According to the illustration in Fig. 3 With solid lines, an interior space 4b of the air hose 4 is pressurized 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 band 13 as a holding casing 10 behaves accordingly in the unpressurized or pressurized state.

The wall 4a of the air hose 4 is in accordance with this Fig. 2 or 5 A perforation 9 is introduced on the top side along the ridge line, for example by punching. This perforation 9 is preferably formed from the finest slot-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 in fine bubbles via the several punctures 9a into the environment U in order to form a bubble curtain BC, which in Fig. 5 is only indicated schematically. When the compressed air is switched off or in the depressurized state, the punctures 9a of the perforation 9 close automatically and thereby prevent the surrounding water from entering and the air hose 4 is pressed flat again by the surrounding water pressure (see. Fig. 3 (dashed)).

The punctures 9a or the perforation 9 are or are in a first peripheral region B1 arranged on the top (see Fig. Fig. 4 ) is introduced into the wall 4a in the area of the ridge line, while the wall 4a remains unperforated in a second peripheral area B2. The punctures 9a are evenly distributed in the first peripheral region B1 in the wall 4a along the longitudinal direction X, with end regions 4c (see Fig. Fig. 5 ) of the air hose 4 remains unperforated for the purpose of sealing at the end. Typically can As a result, one to twenty finest punctures 9a per cm ² are formed in the wall 4a of the air hose 4 in order to form a bubble curtain BC that bubbles out evenly in the longitudinal direction X.

The opening width or the size of the individual punctures 9a can also vary in the longitudinal direction The air hose 4 can therefore 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, which arise due to differences in level of the seabed 3, the compressed air can bubble out in fine bubbles evenly distributed over the air hose 4 (in the longitudinal direction X).

The respective holding casing 10 surrounds the air hose 4 both in the first circumferential region B1 and in the second circumferential region B2, with the above-described escape of the air bubbles in the first circumferential region B1 not being significantly affected due to the openings 10b (punched outs or meshes) in the retaining 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 region 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 impaired.

While the punchings (openings 10b) in the polymer band 13 of the second exemplary embodiment according to Fig. 6 , 7 and 8th are set accordingly so that they allow the air bubbles to escape from the punctures 9a or the perforation 9, the second peripheral area B2 remains Air hose 4 covered by the polymer tape 13. As a result, this second peripheral region B2 of the air hose 4 can be simultaneously protected by the fabric layer-reinforced polymer tape 13 in order to avoid damage, in particular when transporting the hose arrangement 100 and/or during installation on the seabed 3. The polymer band 13 therefore has a dual function (fixing the air hose 4 to the ballast holder 20 and protecting the air hose 4 from external influences).

The transition between the holding casing 10 and the ballast holder 20 varies depending on the embodiment. In the first embodiment according to 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. The ballast holder 20 is formed in this embodiment by an elastically deformable, plate-shaped element 20a (or band-shaped comparable to the polymer band 13) made of a rubber material or a comparable polymer material, the plate-shaped element 20a with its edge regions 20b loop-like around the longitudinal axis is folded back on itself or bent over, so that a tubular shape running in the longitudinal direction X with a receiving area 8 results. In this receiving area 8, a weighting element 21 extended in the longitudinal direction

The edge regions 20b of the folded back plate-shaped element 20a close the lower ends 14a, 14b of the net 12 in the connection region 15 essentially over the entire length L of the air hose 4 between them. For mutual releasable fixation, a connecting means 16 is provided, which in the present case is formed by a screw connection 16a, the screws being inserted through connecting holes 18 in the edge regions 20b as well as 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 from the edge regions 20b. Alternatively, a comparable connection can be made using nails or rivets or pilot bolts 16c (see. Fig. 4 ). But it can also be a rope-shaped or a band-shaped connecting means 16b (see. Fig. 5 ), for example a cord, a thread or a rope, made of a textile or a metallic material for a detachable connection, which passes 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 with a screw connection 16a and with a rope-shaped or band-shaped connecting means 16b, the connection between the two can also be released again in a simple manner. This makes assembly and disassembly or replacement of individual components of the hose arrangement 100 easier, 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 holder 20 takes place in a one-piece variant. Accordingly, the polymer tape 13 is as in Fig. 6 and 7 shown in the first partial area 13a with the punched-out openings 10b, the first partial area 13a being delimited by connecting holes 18 in an upper first edge area 13b and a central area 13c (see Fig. Fig. 8 ). A second partial area 13d is delimited by the connection holes 18 in the central area 13c and by further connection holes 18 in a second edge area 13e. By appropriately rolling up or folding over or folding back the polymer band 13 around its longitudinal axis, the air hose 4 can be accommodated in a space formed by the first partial region 13a and the weighting element 21 can be accommodated in a receiving region 8 formed by the second partial region 13d. This shape can be maintained by introducing appropriate connecting means 16 (screw connection 16a or rope-shaped or band-shaped connecting means 16b or rivets or nails) into the connecting holes 18, which are aligned one above the other in the connecting area 15, in which case the punched out openings 10b are then correspondingly above the perforation 9 of the air hose 4 lie, as in Fig. 6 and 7 shown. Overall, this simplifies the production of the hose arrangement 100. When using pilot bolts 16c with a pointed end at the front as connecting means 16, the connecting holes 18 can also be formed directly when the pilot bolts 16c themselves are inserted.

In principle, the polymer band 13 can also be designed in two parts, with a separation then taking place in the central region 13c into two sub-bands. The two partial bands or partial areas 13a, 13d, which then each have connecting holes 18 on 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 the embodiments described, the hose arrangement 100 can consist of several air hoses 4 joined together in segments via a hose coupling (not shown). This allows a hose arrangement 100 to be provided, which consists of several air hoses 4 joined together in segments. It can be provided that the retaining casing 10 runs over the hose coupling and/or is clamped by the hose coupling in order to prevent the air hose 4 from slipping relative to the retaining casing 10.

Reference symbol list

1

stake

2

Ramming 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 casing

10a

material bars

10b

openings

10c

Crossing points

12

network

13

Polymer tape

13a

first section

13b

first edge region of the polymer tape 13

13c

Middle area of the polymer tape 13

13d

second portion of the polymer tape 13

13e

second edge region of the polymer tape 13

14a, 14b

lower ends of the net 12

15

Connection area

16

lanyard

16a

Screw connection

16b

rope-shaped or band-shaped lanyard

16c

Pilot bolt

18

connection holes

20

Ballast absorption

20a

plate-shaped element

20b

Edge areas of the plate-shaped element 20a

21

Weighting element

21a

Steel cable

100

Hose arrangement

B1

first peripheral area of the wall 4a

B2

second peripheral area of the wall 4a

B.C

Bubble veil

L

Length of the air hose 4

S

lower apex area of the wall 4a

U

Vicinity

X

Longitudinal direction

Claims (14)

1. Hose arrangement (100) for creating a bubble curtain (BS) in bodies of water, comprising

   - at least one air hose (4) including an interior space (4b) enclosed by a wall (4a), where a perforation (9) consisting of individual punctures (9a) is introduced in the wall (4a) at least in an upper, first circumferential area (B1), from which air can be discharged, when the interior space (4b) is pressurized, for creating a bubble curtain (BC) extending in the longitudinal direction (X) of the air hose (4), and

   - a ballast receptacle (20) including a receiving area (8) extending in the longitudinal direction (X) in which an elongates ballast element (21) is received,

   characterised in that
   the air hose (4) is jacketed by a support sheath (10) including material bars (10a) and intermediate openings (10b), the air hose (4) being connected in a connecting area (15) via the support sheath (10) to the ballast receptacle (20), and the openings (10b) being positioned at least in the first circumferential area (B1) of the air hose (4) so as to allow air to be discharged from the perforation (9) in the air hose (4).
2. Hose arrangement (100) according to claim 1, characterised in that the support sheath (10) is not a part of the air hose (4).
3. Hose arrangement (100) according to claim 1 or 2, characterised in that the air hose (4) is connected to the ballast receptacle (20) exclusively via the support sheath (10).
4. Hose arrangement (100) according to one of the above claims, characterised in that the air hose (4) is jacketed across its entire length (L) by the support sheath (10), or, at least, across 75% of the length (L) of the air hose (4).
5. Hose arrangement (100) according to one of the above claims, characterised in that the support sheath (10) is formed by a web (12) of interconnected fibres, in particular, textile or mineral fibres, which form the material bars (10a), and mesh-type openings (10b) in between.
6. Hose arrangement (100) according to claim 5, characterised in that that lower ends (14a, 14b) of the web (12) are affixed, in particular, clamped therein, to the ballast receptacle (20) in the connecting area (15).
7. Hose arrangement (100) according to one of the claims 1 through 4, characterised in that the support sheath (10) is formed by a first partial area (13a) of a polymer band (13) which is folded back onto itself thereby jacketing the air hose (4), the support sheath (10) is formed by a first partial area (13a) of a polymer band (13) which is folded back onto itself thereby jacketing the air hose (4), the polymer band (13) in the first partial area (13a) being provided with cutouts such that openings (10b) are formed in-between material bars (10a) which, in the folded back state of the first partial area (13a) are positioned at least in the first circumferential area (B1) of the air hose (4) so as to allow air to be discharged from the perforation (9) in the air hose (4).
8. Hose arrangement (100) according to claim 7, characterised in that the polymer band (13) is cut or pierced in the first partial area (13a) to form the openings (10b) in-between the material bars (10a), or the polymer band (13) is designed multi-part in the first partial area (13a), the material bars (10a) in the first partial area (13a) being joined to the polymer band (13) in such a manner, for example, by riveting or adhesive bonding, that the openings (10b) forming in-between the material bars (10a) are disposed in the first circumferential area (B1) of the air hose (4).
9. Hose arrangement (100) according to claim 7 or 8, characterised in that the first partial area (13a) of the polymer band (13) essentially fully covers a second (B2) of the air hose (4), the second circumferential area (B2) preferably being unperforated.
10. Hose arrangement (100) according to one of the claims 7 through 9, characterised in that the ballast receptacle (20) is formed by a second partial area (13b) of the polymer band (13) which is folded back onto itself so as to form the receiving area (8) and receive the ballast element (21), the first partial area (13a) and the second partial area (13d) being designed as one piece.
11. Hose arrangement (100) according to one of the claims 7 through 10, characterised in that the first partial area (13a) and/or the second partial area (13d) of the polymer band (13) is and/or are made from a fabric layer reinforced polymer.
12. Hose arrangement (100) according to one of the claims 1 through 9, characterised in that the ballast receptacle (20) is formed by a deformable, panel-shaped element (20a) the edge regions (20b) of which are folded loop-like back onto themselves in such a manner that a hose shape with a receiving area (8) extending in the longitudinal direction (X) is created, in which the ballast element (21) is received, where the edge regions (20b) of the panel-shaped element (20a) are connected in the connecting area (15) to the support sheath (10).
13. Hose arrangement (100) according to one of the above claims, characterised in that connector means (16) are arranged between the support sheath (10) and the ballast receptacle (20), said connector means (16) being designed, in particular, as a screw connection (16a) and/or a rope-type or a band-type connector means (16b) nails and/or rivets and/or pilot bolts (16c).
14. Hose arrangement (100) according to one of the above claims, characterised in that the support sheath (10) lies fully in loose contact with the air hose (4) or the support sheath (10) is connected to the air hose (4) only in certain areas and/or selectively, for example, at the ends and/or at intermediate positions, in particular, via a substance-to-substance bond, for example, via a PU adhesive, and/or by means of a positive-locking and/or frictional connection, for example, a clamp or a rivet connection.

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