An inshore dual-anchor current measurement buoy system

Abstract

The present invention discloses an inshore dual-anchor current measurement buoy system, which includes two auxiliary buoys and a main buoy. The two auxiliary buoys and the main buoy are arranged in a straight line, with the main buoy located between the two auxiliary buoys. One of the auxiliary buoys is distributed near the open sea side, and the other auxiliary buoy is distributed near the shore side. The two sides of the main buoy are respectively connected to the two auxiliary buoys through horizontal chains, and the two auxiliary buoys are connected with a main anchor system, and the main anchor system is distributed towards the side away from the main buoy. The main buoy is provided with a data acquisition and control module. A hanging rack and a counterweight block are connected to the lower part of the main buoy through a suspension cable. The counterweight block is located below the hanging rack, and a Doppler single-point current meter and an acoustic Doppler current profiler, which are respectively connected to the data acquisition and control module, are arranged on the hanging rack. The present invention uses a dual-buoy mooring system for traction and fixation, avoiding the influence on observation due to excessive inclination, not being affected by water bubbles, being safe and reliable, having high-quality observation data, and being convenient for offshore deployment and recovery.

Description

Technical Field

[0001] The present invention relates to the technical field of buoys, and particularly to an inshore dual-anchor current measurement buoy system. Background Art

[0002] At present, most of the in-situ ocean current profile observations based on buoys at home and abroad adopt a single-point buoy mooring system. Most of them install a current meter at the bottom of the buoy body, or use the method of hanging a current meter on a single-point mooring system for in-situ ocean current profile observations.

[0003] When the surface buoy is affected by wind, wave and current, the buoy will pull the bottom mooring system to move. The greater the acting force of wind, wave and current, the greater the inclination of the underwater mooring system. At this time, two problems will be encountered: one is that the interaction between wind, wave and current and the buoy generates bubbles in the water body around the buoy, which will affect the acoustic echo signal of the surface current meter (i.e., Doppler single-point current meter) or the in-situ ocean current profile meter (i.e., acoustic Doppler current profiler ADCP) installed at the bottom of the buoy (manifested as poor quality of the acquired observation data); the other is that after the surface buoy is affected by the resultant force of wind, wave and current, the inclination of the mooring system is too large, which affects the quality of the instrument observation data (such as the data quality is very poor when the ADCP inclination angle exceeds 15 degrees), and further causes the observation data to be unusable.

[0004] Therefore, there is an urgent need for a buoy mooring system that is safe and reliable, convenient for offshore operations, and can preferably observe inshore currents or offshore currents. Summary of the Invention

[0005] The purpose of the present invention is to provide an inshore dual-anchor current measurement buoy system, which uses a dual-buoy mooring system for traction and fixation, is safe and reliable, and is convenient for offshore deployment and recovery, and well solves the problems mentioned in the above background art.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An inshore dual-anchor current measurement buoy system includes two auxiliary buoys floating on the sea surface and a main buoy. The two auxiliary buoys are linearly distributed with the main buoy, and the main buoy is located between the two auxiliary buoys. One auxiliary buoy is distributed near the open sea side, and the other auxiliary buoy is distributed near the shore side; both sides of the main buoy are respectively connected to the two auxiliary buoys through horizontal chains, and the two auxiliary buoys are also respectively connected with a main mooring system, and the main mooring system is distributed towards the side away from the main buoy; the main buoy is provided with a data acquisition and control module. A hanging rack and a counterweight are connected to the lower part of the main buoy through a suspension cable, the counterweight is located below the hanging rack, and the hanging rack is provided with a Doppler single-point current meter and an acoustic Doppler current profiler respectively connected to the data acquisition and control module.

[0008] Further, the main anchor system includes an anchor body and an anchor chain. The anchor body sinks to the seabed and is connected to the seabed. One end of the anchor chain is connected to the anchor body, and the other end of the anchor chain is connected to the auxiliary buoy.

[0009] Further, the anchor chain includes a mooring chain suspended in seawater and a lying chain lying on the seabed.

[0010] Further, the distance between the main buoy and the auxiliary buoy is greater than or equal to 40 m.

[0011] Further, the suspension cable is a chain or a rope.

[0012] Further, the hanging frame is a stainless steel frame formed by splicing a plurality of stainless steel rods. Suspension members are provided at both the upper and lower parts of the hanging frame. The suspension members are provided with mooring holes for connecting with the suspension cable. The hanging frame is further provided with a first installation component for fixing the Doppler single-point current meter and a second installation component for fixing the acoustic Doppler current profiler.

[0013] Further, the hanging frame is further provided with zinc anodes.

[0014] Further, both the first installation component and the second installation component include two C-shaped clamps. Fixing plates for connecting with the stainless steel frame body are provided at both ends of the C-shaped clamps.

[0015] Further, connecting plates are respectively provided on both sides of the main buoy. The connecting plates are provided with assembly holes for connecting with the horizontal chain. The horizontal chain, the auxiliary buoy and the main anchor system on the same side are connected by a hanging plate. The hanging plate is a three-hole metal plate with three connecting holes in an equilateral triangle. The first connecting hole of the hanging plate is connected to the bottom of the auxiliary buoy. The second connecting hole of the hanging plate is connected to the end of the horizontal chain far from the main buoy. The third connecting hole of the hanging plate is connected to the end of the main anchor system far from the seabed.

[0016] Further, the main buoy includes a main buoy body and a mast. The lower part of the mast is connected to the top of the main buoy body. A solar panel is installed on the mast and / or the main buoy body. The solar panel is connected to the data acquisition and control module. A through well for hanging a counterweight and a hanging frame is provided in the middle of the main buoy body. The auxiliary buoy includes an auxiliary buoy body and a navigation light. The navigation light is fixed to the top of the auxiliary buoy body through a support rod.

[0017] Compared with the prior art, the present invention provides an inshore double-anchor current measurement buoy system, which has the following beneficial effects:

[0018] In the present invention, an auxiliary buoy and a main mooring system are respectively arranged on both sides of the main buoy to form a single-point buoy mooring system, and a horizontal chain is used to connect with the main buoy. Since the traction and fixation are respectively carried out in two directions towards the open sea and the shore, the inclination of the resultant force generated by the wind, wave and current on the buoy mooring system can be decomposed. Such a distribution can minimize the acting force on the main buoy in the middle when affected by a typhoon, thus minimizing the influence on the Doppler single-point current meter and the acoustic Doppler current profiler. At the same time, the horizontal chain is used to connect the main buoy and the auxiliary buoy. The horizontal chain can prevent the auxiliary buoy from colliding with the main buoy and prevent the main mooring system from winding around the suspension cable, providing sufficient underwater space for the Doppler single-point current meter and the acoustic Doppler current profiler below the main buoy, and avoiding interference to affect normal operation. Moreover, the hanging bracket suspended below the main buoy is in a freely hanging state under the action of gravity, avoiding the influence of the tension inclination of the mooring system on the Doppler single-point current meter and the acoustic Doppler current profiler installed on the hanging bracket, and also being free from the influence of bubbles, greatly improving the quality of the sea current observation data.

[0019] When the nearshore dual-anchor current measurement buoy system of the present invention is used for sectional sea current observation, the monitored data is relatively reliable, and it is convenient for deployment and recovery during offshore operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a connection schematic diagram of the main buoy;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the hanging bracket;

[0024] Figure 4 It is a connection schematic diagram of the auxiliary buoy;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the hanging plate.

[0026] Reference numerals: 1, main buoy; 11, connecting plate; 111, assembly hole; 12, main buoy body; 13, mast; 14, through well; 15, meteorological platform; 2, auxiliary buoy; 21, auxiliary buoy body; 22, navigation light; 23, support rod; 3, horizontal chain; 4, main anchor system; 41, anchor body; 42, anchor chain; 421, mooring chain; 422, lying chain; 5, suspension cable; 6, hanging bracket; 61, stainless steel frame; 62, suspension member; 621, mooring hole; 63, first installation component; 631, C-shaped clamp; 632, fixing plate; 64, second installation component; 65, zinc anode; 7, counterweight; 8, data acquisition and control module; 81, Doppler single-point current meter; 82, acoustic Doppler current profiler; 83, solar panel; 9, hanging plate; 91, connection hole; 100, sea surface; 200, seabed; A, open sea direction; B, shore direction. Detailed implementation manners

[0027] The technical solutions of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0030] In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0032] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0033] Please refer to Figures 1 to 5 , this embodiment provides an inshore dual-anchor current measurement buoy system, including two auxiliary buoys 2 floating on the sea surface 100 and a main buoy 1. The two auxiliary buoys 2 are linearly distributed with the main buoy 1, and the main buoy 1 is located between the two auxiliary buoys 2. One of the auxiliary buoys 2 is distributed near the open sea side, and the other auxiliary buoy 2 is distributed near the shore side; both sides of the main buoy 1 are respectively connected to the two auxiliary buoys 2 through a horizontal chain 3, and the two auxiliary buoys 2 are also respectively connected with a main anchor system 4, and the main anchor system 4 is distributed towards the side away from the main buoy 1; the main buoy 1 is provided with a data acquisition and control module 8. A suspension cable 5 is connected below the main buoy 1 to a hanging bracket 6 and a counterweight 7. The counterweight 7 is located below the hanging bracket 6, and a Doppler single-point current meter 81 and an acoustic Doppler current profiler 82 respectively connected to the data acquisition and control module 8 are installed in the hanging bracket 6. The Doppler single-point current meter can observe the sea current on the water surface layer, and the acoustic Doppler current profiler can observe the sea current of each layer profile down to the seabed.

[0034] By respectively arranging an auxiliary buoy and a main anchor system on both sides of the main buoy to form a single-point buoy mooring system, and connecting them to the main buoy with a horizontal chain. Since the traction and fixation are carried out in two directions towards the open sea and the shore respectively, the inclination of the resultant force generated by the wind, wave and current on the buoy mooring system can be decomposed. Such a distribution can minimize the acting force on the main buoy in the middle when affected by a typhoon, thus minimizing the impact on the Doppler single-point current meter and the acoustic Doppler current profiler. At the same time, by connecting the main buoy and the auxiliary buoy with a horizontal chain, the horizontal chain can prevent the auxiliary buoy from colliding with the main buoy and prevent the main anchor system from winding around the suspension cable, providing sufficient underwater space for the Doppler single-point current meter and the acoustic Doppler current profiler below the main buoy and avoiding interference to ensure normal operation. Moreover, the hanger suspended below the main buoy is in a freely hanging state under the action of the weight block, avoiding the influence of the tension inclination of the mooring system on the Doppler single-point current meter and the acoustic Doppler current profiler installed on the hanger, and also being free from the influence of bubbles, greatly improving the quality of the sea current observation data.

[0035] In some specific embodiments, referring to Figure 1 , the main anchor system 4 includes an anchor body 41 and an anchor chain 42. The anchor body 41 sinks to the seabed and is connected to the seabed 200. One end of the anchor chain 42 is connected to the anchor body 41, and the other end of the anchor chain 42 is connected to the auxiliary buoy 2. Specifically, the anchor chain 42 includes a mooring chain 421 suspended in seawater and a lying chain 422 lying on the seabed 200. Through the cooperation of the anchor body and the lying chain, the main buoy and the auxiliary buoy can be relatively stably fixed on the sea surface.

[0036] As an example, the anchor body 41 is a drag anchor. The lying chain 422 can adopt a two-stage studded anchor chain, which is more wear-resistant than ordinary anchor chains and has better tensile strength. Preferably, the length of the lying chain 422 is greater than or equal to twice the water depth, so as to ensure that the horizontal grab teeth on the anchor body cut into the soil of the seabed.

[0037] As a preferred embodiment, the distance between the main buoy 1 and the auxiliary buoy 2 is greater than or equal to 40 m. In this way, it can be ensured that the hanger with a Doppler single-point current meter and an acoustic Doppler current profiler installed below the main buoy does not get entangled with the main anchor systems on both sides.

[0038] As an example, the suspension cable 5 can be selected from a studless chain or a rope, so as to facilitate the free suspension of the hanger.

[0039] In some specific embodiments, referring to Figure 3, the hanger 6 is a stainless steel frame body 61 formed by welding and splicing a plurality of stainless steel rods. Suspension members 62 are provided at both the upper and lower parts of the hanger 6. The suspension members 62 are provided with mooring holes 621 for connecting with the suspension cable 5. The hanger 6 is further provided with a first mounting assembly 63 for fixing the Doppler single-point current meter 81 and a second mounting assembly 64 for fixing the acoustic Doppler current profiler 82. More specifically, both the first mounting assembly 63 and the second mounting assembly 64 include two C-shaped clamps 631. Fixing plates 632 for welding connection with the stainless steel frame body 61 are provided at both ends of the C-shaped clamps 631. Through the enclosure of the two C-shaped clamps, the Doppler single-point current meter or the acoustic Doppler current profiler can be installed and fixed.

[0040] As an improved implementation manner, as Figure 3 shown, the hanger 6 is further provided with a zinc anode 65, thereby avoiding the corrosion of the hanger by seawater and protecting the hanger well.

[0041] As an example, the distance from the hanger 6 to the sea surface 100 can be set to 5 m, the distance from the counterweight 7 to the sea surface 100 can be set to 10 m, and the Doppler single-point current meter 81 is arranged above the acoustic Doppler current profiler 82. With such an arrangement, it is the best arrangement position and has a good observation effect.

[0042] In some specific implementation manners, referring to Figure 2 , connecting plates 11 are respectively provided on both sides of the main buoy 1. The connecting plates 11 are provided with assembly holes 111 for connecting with the horizontal chain 3. In this way, the horizontal chain is connected to the side of the main buoy, which can further avoid the inclination of the mooring system from affecting the operation of the Doppler single-point current meter or the acoustic Doppler current profiler below the main buoy. Referring to Figure 4 and Figure 5 , the horizontal chain 3, the auxiliary buoy 2 and the main anchor system 4 on the same side are connected by a hanging plate 9. The hanging plate 9 is a three-hole metal plate with three connection holes 91 in an equilateral triangle. The first connection hole of the hanging plate 9 is connected to the bottom of the auxiliary buoy 2, the second connection hole of the hanging plate 9 is connected to the end of the horizontal chain 3 far from the main buoy 1, and the third connection hole of the hanging plate 9 is connected to the end of the main anchor system 4 far from the seabed. By providing a special hanging plate, the horizontal chain, the auxiliary buoy and the main anchor system can be freely connected, which is convenient for offshore deployment and recovery.

[0043] In some specific implementation manners, referring to Figure 2, the main buoy 1 includes a main buoy body 12 and a mast 13. The lower part of the mast 13 is connected to the top of the main buoy body 12. A solar panel 83 for power supply is installed on the mast 13 and / or the main buoy body 12. The solar panel 83 is connected to the data acquisition and control module 8. A through well 14 for hanging a counterweight 7 and a hanger 6 is provided in the middle of the main buoy body 12. A meteorological platform 15 is further provided at the upper part of the mast 13. As an example, devices such as meteorological monitoring equipment, a beacon light, and an antenna are installed on the meteorological platform 15. The meteorological monitoring equipment includes an anemometer and wind vane, a temperature and humidity meter, a barometer, etc. The antenna includes a Beidou positioning / data transmission instrument, etc. An instrument well is provided on the outer periphery of the main buoy body 12, and the instrument well is used to install conventional underwater monitoring equipment. In this way, the main buoy has platform functions such as data acquisition, energy supply, signal transmission, and operation carrier.

[0044] In some specific embodiments, referring to Figure 4 , the auxiliary buoy 2 includes an auxiliary buoy body 21 and a beacon light 22. The beacon light 22 is fixed to the top of the auxiliary buoy body 21 through a support rod 23. A radar transmitter is also installed on the support rod 23 of the auxiliary buoy 2 for real-time monitoring of the surrounding conditions.

[0045] When deploying during offshore operations, as Figure 1 shown, an auxiliary buoy 2 can be deployed first on one side close to the shore direction B, then the main buoy 1 is deployed, and finally another auxiliary buoy 2 is deployed on one side close to the open sea direction A. The whole process is relatively simple to operate.

[0046] The above embodiments only exemplarily illustrate the concept and technical solutions of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nearshore double-anchor current measurement buoy system, comprising two auxiliary buoys and one main buoy floating on the sea surface, characterized in that: The two auxiliary buoys are arranged in a straight line with the main buoy, and the main buoy is located between the two auxiliary buoys, one of which is arranged close to the open sea, and the other is arranged close to the shore; the distance between the main buoy and the auxiliary buoy is greater than or equal to 40m; the two sides of the main buoy are respectively connected to the two auxiliary buoys through horizontal chains, and the two auxiliary buoys are also respectively connected to main anchor systems, and the main anchor systems are arranged toward a side away from the main buoy; connecting plates are respectively provided on both sides of the main buoy, and the connecting plates are provided with assembly holes connected to the horizontal chains; the horizontal chains, auxiliary buoys and main anchor systems on the same side are connected through It is connected through a hanging plate, which is a three-hole metal plate with three connecting holes in the shape of an equilateral triangle, the first connecting hole of the hanging plate is connected to the bottom of the auxiliary buoy, the second connecting hole of the hanging plate is connected to the end of the horizontal chain away from the main buoy, and the third connecting hole of the hanging plate is connected to the end of the main anchor system away from the seabed; the main buoy is provided with a data acquisition control module, and a hanger and a counterweight block are connected below the main buoy through a suspension cable, the counterweight block is located below the hanger, and the hanger is provided with a Doppler single-point current meter and an acoustic Doppler current profiler respectively connected to the data acquisition control module.

2. The nearshore double-anchor current measuring buoy system according to claim 1 is characterized in that: The main anchor system comprises an anchor body and an anchor chain. The anchor body is sunk to the seabed and connected to the seabed. One end of the anchor chain is connected to the anchor body, and the other end of the anchor chain is connected to the auxiliary buoy.

3. The nearshore double-anchor current measuring buoy system according to claim 2 is characterized in that: The anchor chain comprises a mooring chain suspended in the sea water and a ground-lying chain lying on the seabed.

4. The nearshore double-anchor current measuring buoy system according to claim 1, characterized in that: The suspension cable is a chain or a rope.

5. The nearshore double-anchor current measuring buoy system according to claim 1, characterized in that: The bracket is a stainless steel frame formed by splicing a plurality of stainless steel rods. The upper and lower parts of the bracket are provided with hanging parts. The hanging parts are provided with mooring holes connected to the suspension cables. The bracket is also provided with a first mounting component for fixing the Doppler single-point current meter and a second mounting component for fixing the acoustic Doppler current profiler.

6. The nearshore double-anchor current measuring buoy system according to claim 5, characterized in that: The rack is also provided with a zinc anode.

7. The nearshore double-anchor current measuring buoy system according to claim 5, characterized in that: The first mounting assembly and the second mounting assembly each include two C-shaped clamps, and both ends of the C-shaped clamps are provided with fixing plates connected to the stainless steel frame.

8. The nearshore double-anchor current measuring buoy system according to any one of claims 1 to 7, characterized in that: The main buoy includes a main buoy body and a mast, the lower part of the mast is connected to the top of the main buoy body, the mast and / or the main buoy body are equipped with solar panels, the solar panels are connected to the data acquisition control module, and a through well for hanging counterweights and hangers is provided in the middle of the main buoy body; the auxiliary buoy includes an auxiliary buoy body and a navigation light, and the navigation light is fixed to the top of the auxiliary buoy body through a support rod.

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