• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Støjdæmpningsindretning (1) til piloteringsarbejder under vand, udvisende mindst en ledning (10), der kan fikseres på havbunden (2), og som udviser et flertal af boringer (105), samt mindst en vikleindretning (15) med en tromle (152), hvorpå ledningen (10) kan opvikles. Der er tilvejebragt en tryklufttilslutning til ledningen (10), der er placeret indvendigt i vikleindretningens (15) tromle (152).
    公开号:DK201500125U1
    申请号:DK201500125U
    申请日:2015-09-15
    公开日:2015-09-25
    发明作者:Weyres Bernhard
    申请人:Weyres Bernhard；
    IPC主号:
    专利说明:

    The invention relates to a noise suppression device for pilot work underwater, showing at least one pipe which can be fixed on the seabed and having a plurality of bores, and at least one compressor by which compressed air can be introduced into the pipe so that it can flow out of the boreholes. Further, the method relates to a method for reducing the transmission of noise in a liquid, comprising the following steps: laying a conduit on the seabed enclosing the noise source annular and provided with bores, and introducing compressed air into the conduit so that it flows out through the bores .
    Such devices and methods can be used for noise cancellation by introducing cylindrical poles into the seabed. Such piles can be used for anchoring monopile, tripod, tripile or jacket structures on which structures such as windmasters, wind turbines, drilling platforms or transformers within the offshore area can be built.
    The above-mentioned foundation structures can to a large extent be prefabricated on land, so that they can be installed easily and quickly on site in often difficult weather conditions. However, it is a disadvantage that heavy piloting tools are needed for the establishment, which brings a high noise level of, for example, more than 130 dB into the environment. Such noise levels can be detrimental to marine fauna.
    It is therefore known from DE 10 2004 043 128 A1, through a piping system surrounding the pilot site, to conduct compressed air which can flow into the pipes through bores. However, as the conduit due to the filling of air has a great buoyancy, it is only costly to implement this measure. For example, the cord can be attached to the seabed by divers to prevent it from flooding during operation. Upon completion of the construction work, the pipeline must either be abandoned or detached from the seabed by renewed efforts by divers. Alternatively, the cord can be weighed with outside weights, which, however, makes it difficult to handle.
    Accordingly, it is the object of the invention to provide a device and method for pilot work underwater which combines a good noise attenuation effect with low apparatus costs, so that the noise attenuation measures can be implemented quickly and simply.
    The object is met by a noise canceling device according to claim 1 and a ship according to claim 12.
    According to the invention, it is proposed for noise attenuation during the piloting work in a manner known per se to allow air bubbles to rise from a conduit surrounding the piloting site approximately annularly. Because of the mass density inhomogeneity between the rising air bubbles and the surrounding seawater, and because of the compressibility of the air bubbles, the energy of the noise waves can be at least partially dissipated, so that a lower noise intensity prevails outside the bubble.
    In order to achieve a noise reduction in all directions, the cord can be laid out so that it encloses the pilot site completely annular. If a reduction is only necessary in certain directions, the line can of course be laid only in these directions, respectively. the ring on the pilot site may not be completely closed.
    The compressed air flowing out of the conduit is provided by at least one compressor, usually mounted at the water surface of a ship or jack-up barge. The compressed ambient air is then supplied to the conduit via a supply hose and exits the conduit via a plurality of bores introduced along the conduit length.
    As the conduit is therefore permanently filled with air during operation of the device, buoyancy forces act on the conduit. However, for the function of noise suppression device, it is necessary that the conduit remain on the seabed. Otherwise, the noise emanating from the piloting workers can pass unobstructed between the conduit and the seabed and consequently spread at full intensity.
    According to the invention, it is now proposed to insert a weight body into the cord. In this way, the total weight of the conduit can be increased so much that, without additional anchors or external supplementary weights, it remains on the seabed. Since the weight body is disposed internally in the conduit, the outer shape of the conduit remains unchanged so that it can continue to be laid out and / or salvaged in a simple manner without external weights impeding the process. Anchorage with the help of divers can also be supplementary, but is usually not necessary. At the very least, the number of anchors can be reduced or the distance between the anchoring points increased as the cord remains on the seabed due to its high intrinsic weight.
    The weight body may, in some embodiments of the manufacture, contain a metal or an alloy. In other embodiments of the manufacture, the weight body may contain or consist of a mineral material, for example concrete. The body weight, respectively. the weight bodies can be inserted in the production of the cord, for example by extrusion, immediately. For example, weight bodies may be bonded, screwed or riveted to the wire at certain distances. In one embodiment of the invention, several weight bodies may be connected to each other by a wire or chain which prevents slippage along the length of the line. In one embodiment of the invention, at least one sufficiently sized chain with a plurality of chain links may be used as the sole weight body. Such a weight body can be inserted into the cord in a simple manner. Due to the movement of the chain links, the weight body does not, or only negatively, affect the winding and unrolling of the cord.
    In some embodiments of the invention, the cord may have at least one longitudinal section showing a hose with a wall, the wall having at least one layer of a wire mesh. In some embodiments of the fabrication, multiple layers of a wire mesh may be provided in the wall. In some embodiments of the ice sheet, the number of layers of wire mesh may be between 1 and 8, between 2 and 7, or between 3 and 5. The wire mesh in the wall of the hose increases its tensile strength, so that mechanical damage, respectively. a non-tolerable cross-sectional or length change is avoided by unwinding the hose. Furthermore, the wire mesh can limit the expandability of the hose so that it retains its desired cross section even at high pressure. Accordingly, the device can be operated with high reliability and laid out and salvaged particularly safely.
    In some embodiments of the fabrication, the wire mesh and / or the chain may, respectively. the at least one body of weight contains or consists of a stainless steel. For the purposes of the present description, a stainless steel is meant an alloy steel that is corrosion resistant or at least corrosion resistant. For example, steel having the material numbers 1.4401, 1.4571 or 1.4462 can be used. The use of these stainless steels extends the life of the proposed device if seawater comes into contact with the weight body and / or the wire mesh through the air outlet openings or damage to the wall.
    In some embodiments of the generation, the noise suppression device further comprises at least one winding device with at least one drum on which the conduit can be wound. In some embodiments of the production, the drum may exhibit a drive mechanism, for example, an electric or hydraulic drive. The drum may be arranged to accommodate more than about 900 m, more than about 1000 m, or more than about 1100 m of wire. With the proposed winding device, the cord, like an anchor chain, can be unwound from aboard a working ship and laid on the seabed. In this case, if the ship sails in a circle around the pilot site, all room directions for noise propagation can be covered.
    To pick up the cord after completion of the work, in some embodiments of production it may be sufficient to roll the cord on the drum while the ship is operating essentially propulsive or with low engine power. In this way, the ship is guided by the cord as by an anchor chain and follows the lead course backwards while the cord is wound on the drum. In particular, in this kind of salvage and laying of the cord, a cord stands its test with increased tensile strength, like the proposed embodiment with at least one wire mesh in the wall. Also, the weight body can serve to absorb tensile forces when it contains or consists of a chain or wire.
    In some embodiments of the generation, several wires may be laid out simultaneously, each enclosing the noise source annularly. Thereby, several approximately concentrically arranged bubble veils are formed. Since a single bubble vein from a single wire causes a reduction of noise by about 12 dB to about 20 dB, by means of several bubble veils a correspondingly greater reduction can be achieved. If several lines are laid at the same time, this improved noise reduction can be installed with a single sailing of the ship around the pilot site. In some embodiments of the generation, the number of simultaneously laid wires may be about 2 to about 6.
    In some embodiments of the generation, several wires may be laid out simultaneously, each wire being wound from an associated winding device which wires the wires at different speeds. If the winding devices each have drums of the same diameter, the rotational speed can be selected differently for this. According to the production, it was seen that the wires will thereby lie at a distance on the seabed.
    For example, in some embodiments of the generation, the velocity may be chosen such that the conduits are located substantially concentric, where the outer conduit is laid out with a radius about 10 m to about 30 m greater than the radius of the inner conduit.
    In some embodiments of the invention, the drum of the winding device may exhibit an interior air supply, so that the conduit during the unwinding and / or during the inhalation may be affected by compressed air. This stabilizes the cord even more mechanically so that it does not suffer unduly small bending radii that could damage the cord. Furthermore, penetration of seawater and sand is avoided, which could lead to the clogging of individual bores in the pipe wall.
    Subsequently, the production must be explained in more detail by means of figures without limiting the general thought of the production. In this connection:
    Figure 1 is an exemplary embodiment of a conduit proposed according to the invention.
    Figure 2 shows a connection element for two wiring parts according to one embodiment of the invention.
    Figure 3 shows a winding device according to an embodiment of the invention. Figure 4 shows the cross section through a wire.
    Figure 5 illustrates the operating principle of the proposed noise canceling device.
    Figure 1 shows a hose 11 which can be used as conduit 10 in a noise canceling device according to the invention. In this connection, the hose 11 may form at least one longitudinal section of the conduit 10. In other embodiments of the conduit 10, the conduit 10 may be formed completely to the proposed hose.
    The hose 11 exhibits a wall 111 which is explained in greater detail by means of Figure 4. The wall 111 encloses the inner width 11 of the hose 116. The wall 111 may be made of a rubber or a polymer. For example, the wall 111 may contain or consist of polyvinyl chloride or EPDM. In order to improve the tensile strength and compressive loadability of the hose 11, the wall 111 may contain at least one wire mesh 112, 113 or 114. Figure 14 shows an embodiment with three approximately concentrically placed layers of wire mesh. These may be inserted into the wall 111 by extrusion or vulcanization of the hose 12. In other embodiments of the generation, the number of wire meshes 112, 113 and 114 may be larger or also smaller and constitute between about 1 and about 7. In some embodiments of the generation, a wire mesh also lapse.
    The wall 111 exhibits a plurality of bores 105, one of which is shown in the cross section of Figure 4. The bores 105 may have a diameter of about 0.5 to about 5 mm. The bores 105 may be disposed in the wall 111 at a distance of about 100 cm to about 10 cm.
    On the inside 115 of the wall 111, at least one weight body which compensates for the buoyancy of the hose 11 rests so much that it remains on the seabed, even when the remaining inside width 116 of the hose 11 is filled with compressed air. As explained by Figure 1, in the embodiment shown, a chain having a plurality of chain links 102. is used in the embodiment shown. In such an embodiment, the hose 11 and 11, respectively, remain. the conduit 10 is still flexible so that it can be easily unrolled and unwound and thus in a particularly simple way laid out on the seabed and removed there again. Even when the chain 101 fills a large portion of the inner width 116, the compressed air can still flow through the conduit 10 between the links 102. Furthermore, the chain 101, like the wire mesh 112, 113 and 114, can further increase the tensile strength of the conduit 11, thus damaging the salvage and laying of the conduit 11. line 10 is avoided.
    The wire mesh 112, 113 and 114 as well as the chain 101 respectively. another weight body may in some embodiments of the manufacture be made of corrosion resistance or corrosion resistant steel. This prolongs the service life of the conduit 10 if, during operation of the device, seawater flows into the conduit through damage sites or through the bores 105.
    Figure 2 shows a connecting element 40 by which different length sections of a hose 11 can be assembled into a single conduit 10. The connecting element 40 has a sleeve 41. The sleeve 41 consists of a cylindrical base body, on the outer side of which is a plurality of ribs 45. the outer diameter of the cylindrical base body 41 corresponds approximately to the inner width 11 of the hose 116. In this way, the hose 11 can accommodate the cylindrical base body 41, the ribs 45 lying on the inner wall 115.
    After two tubes from both sides are pushed on the base body 41, the joining site can be inserted into a half-bowl shaped hanger 43. The hanger 43 is subsequently closed via bores 44 with a screw joint 47.
    Optionally, the hanger 43 may exhibit recesses or ribs 46 which are formed, respectively. in this way a form-fitting connection of the hose 11 with the cylindrical base body 41 is obtained so that high tensile forces can be transmitted in the direction of the longitudinal extension of the hose 11 without the hose 11 sliding out of the connecting element 40.
    Figure 5 shows an example of application of the noise reduction method proposed according to the invention, respectively. noise suppression device. Figure 5 shows the tower of a wind power plant 3 anchored to the seabed 2 by means of a tripod 30. The water depth at the installation site of the wind power plant 3 can for example be about 10 m to about 45 m or about 25 to about 40 m.
    Tripod 30 exhibits mounting sleeves 31 at its base points. The mounting sleeves 31 are intended to accommodate a pilot pole 32. If the tripod 30 is securely connected to the pilot poles 32 and the pilot poles 33 are securely anchored to the seabed 2, the wind energy system 3 reliably stands on the seabed 2. For this, the pilot poles 32 can have a diameter of about 2. m to about 5 m and a length of about 20 m to about 40 m.
    The pilot piles 32 are driven in with a pile frame not shown, resulting in high intensity noise emissions 21 which propagate in the seawater as structural noise.
    In order to reduce the influence of the marine fauna due to the noise emission 21, it is proposed according to the invention to lay out a conduit 10 annularly around the pilot site respectively. around the total tripod 30 with all pilot sites. To this end, the line 10, according to the invention, is rolled out of a winding device 15 mounted on a ship 11 and is further described by means of Figure 3. After the ship 11 has sailed around the construction site once and in this connection the line 10 has rolled out, due to its own weight on the seabed 2. In order to reduce the penetration of seawater into the inner width 116 of the conduit 10 and / or to stabilize the conduit 10 mechanically, the conduit 10 can already be affected during compression by compressed air from a compressor 18. Due to the weight body of the conduit 10 however, as a result of its weight, the interior sinks down to the seabed and remains there.
    Prior to the commencement of the piloting work, line 10 is pressurized with at least one compressor 18 and line 181. Compressed air 180 leaves line 10 through openings 105 and rises to sea level in the form of bubbles. The high-emission noise emission 21 is attenuated by passage through this bubble veil 180, so that a lower noise intensity 22 can be observed outside the area delimited by line 10.
    Upon completion of the work, the conduit 10 can be re-hoisted on board the ship 11 with the aid of the winding device 15 and subsequently made available for the next use. To lift the line 10 up, the ship can operate propulsively or with low engine power, while the line 10 is hauled in with the winding device 15. This causes the ship 11 to follow the course of the line 10, and when breaking an anchor chain, and cracking the load 10 tripod 30 with line 10 is avoided.
    By means of Figure 3, the operation of the winding device 15 is described. The winding device 15 has a frame 151. The frame 151 can have the outer dimensions of a conventional container, for example the dimensions of a shipping container according to ISO 668. In this way, the winding device 15 can be transported and stored in a space-saving manner.
    If the frame 151 has the standard dimensions of a shipping container, it may also exhibit the connecting elements 153 of such a container so that multiple winding devices 15, like containers, can be stacked on top of one another, or mixed stacks of winding devices 15 and containers can be formed. This allows for a space-saving and cost-effective transport option on the ship 11.
    In frame 151, a drum 152 is mounted pivotally. The drum 152 may be designed to accommodate more than 500 m, more than 900 m, more than 1000 m or more than 1100 m of hose 11. Since the hose 11 is made of a flexible rubber or plastic and because of the internally placed weight body has a smooth exterior, the hose 11 can be stored particularly space-saving on the drum 152.
    To insert the hose 11, the drum 152 can be rotated with a hydraulic drive mechanism not shown, so that the hose 11 is wound while the ship 19 is sailing around the area intended for the noise cancellation measures. If the drive mechanism of the drum 152 is dimensioned sufficiently strong, the hose 11 for retrieving the hose 11 can be pulled backwards by the hose 11, thereby wound the hose 11 on the drum 152.
    Figure 3 also shows a compressed air connection 154. The connection 154 can be connected to the conduit in a compressor 18 which affects the conduit 11 with compressed air. Due to the compressed air connection of the hose 11 located inside the drum, the hose II can be affected by compressed air already during the unwinding.
    Of course, the production is not limited to the embodiments shown in the figures. Consequently, the above description should not be regarded as limiting but as explanatory. The following claims are to be understood such that a said characteristic exists in at least one embodiment of the invention. This does not preclude the presence of additional characteristics.
    权利要求:
    Claims (22)
    [1]
    1. Noise-canceling device (1) for pilot work underwater, having at least one cord (10) fixable on the seabed (2), showing a plurality of bores (105), and at least one winding device (15) with a drum ( 152), upon which the conduit (10) can be wound, which is new in that a compressed air connection is provided to the conduit (10) located inside the drum (152) of the winding device (15).
    [2]
    The noise suppression device according to claim 1, which is new in that the compressed air connection located inside the drum (152) is adapted to actuate the conduit with compressed air during unwinding and / or during inhalation.
    [3]
    The noise suppression device according to claim 1 or 2, which is new in that the conduit has at least one longitudinal section into which a weight body (101) is inserted.
    [4]
    The noise suppression device according to claim 3, which is new in that the weight body (101) contains or consists of a chain.
    [5]
    The noise suppression device according to one of claims 1 to 4, which is new in that the conduit (10) has at least one longitudinal section showing a hose (11) with a wall (111), wherein the wall (111) contains at least one layer of a wire mesh (112, 113, 114).
    [6]
    Noise canceling device according to one of claims 4 or 5, which is new in that the wire mesh (112, 113, 114) and / or the chain contains or consists of a stainless steel.
    [7]
    Noise-canceling device according to one of claims 5 or 6, which is new in that the wall (111) contains between 2 and 7 layers or between 3 and 5 layers of the wire mesh (112, 113, 114).
    [8]
    Noise-canceling device according to one of claims 1 to 7, which is new in that the pressure in the compressed air can be selected so that penetration of seawater into the conduit (10) during the unwinding is avoided.
    [9]
    Noise-canceling device according to one of claims 1 to 8, further comprising a hydraulic drive mechanism by which the drum (152) can be driven.
    [10]
    Noise-canceling device according to one of claims 1 to 9, which is new in that more than 900 m, more than 1000 m or more than 1100 m line (10) can be wound on the drum (152).
    [11]
    Noise canceling device according to one of claims 1 to 10, new in that the winding device (15) has a frame (151) whose outer dimensions have the size and / or connecting elements (153) of a shipping container, for example a shipping container according to ISO 668.
    [12]
    A ship (19) or jack-up barge with at least one noise canceling device (1) according to one of claims 1 to 11.
    [13]
    A winding device (15) with a drum (152) on which a conduit (10) can be wound in a noise suppression device (1) for pilot work underwater, which is new in that a compressed air connection to the conduit (10) is provided. is located inside the drum (152) of the winding device (15).
    [14]
    The winding device according to claim 13, which is new in that the compressed air connection located inside the drum (152) is adapted to actuate the conduit (10) with compressed air during unwinding and / or inhalation.
    [15]
    The winding device according to claim 14, which is new in that the pressure in the compressed air can be selected so that intrusion of seawater into the conduit (10) during the unwinding is avoided.
    [16]
    The winding device according to one of claims 13 to 15, further comprising a hydraulic drive mechanism by which the drum (152) can be driven.
    [17]
    The winding device according to one of claims 13 to 16, which is new in that more than 900 m, more than 1000 m or more than 1100 m cord (10) can be wound on the drum (152).
    [18]
    Winding device according to one of claims 13 to 17, which is new in that the winding device (15) has a frame (151) whose outer dimensions have the size and / or connecting elements (153) of a shipping container, for example a shipping container according to ISO 668.
    [19]
    The winding device according to one of claims 13 to 18, which is new in that a conduit can be wound showing at least one longitudinal section into which a weight body (101) is inserted.
    [20]
    The winding device of claim 19, which is new in that the weight body (101) contains or consists of a chain.
    [21]
    A winding device according to any one of claims 19 or 20, which is new in that the ductable winding (10) has at least one longitudinal section showing a hose (11) with a wall (111), wherein the wall (111) contains at least one layer of a wire mesh (112, 113, 114).
    [22]
    A ship (19) or jack-up barge with at least one winding device according to one of claims 19 to 21.
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102012202132|2012-02-13|
    DE102012202132A|DE102012202132A1|2012-02-13|2012-02-13|Method and device for soundproofing|
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