CN113911290B - Fishing device and method for bottom-sitting seabed-based observation system after floating loss - Google Patents
Fishing device and method for bottom-sitting seabed-based observation system after floating loss Download PDFInfo
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- CN113911290B CN113911290B CN202111340027.1A CN202111340027A CN113911290B CN 113911290 B CN113911290 B CN 113911290B CN 202111340027 A CN202111340027 A CN 202111340027A CN 113911290 B CN113911290 B CN 113911290B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
- B63C7/02—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects in which the lifting is done by hauling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
- B63B2022/006—Buoys specially adapted for measuring or watch purposes
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- Ocean & Marine Engineering (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Mechanical Means For Catching Fish (AREA)
Abstract
The invention relates to a salvaging device used for a bottom-sitting seabed base observation system after no-floating, which comprises an operation fishing boat, a total towing rope, a branch towing rope, a towing rod device and a towing hook device; the towing bar device comprises a towing bar and towing adjusting devices distributed along the length direction of the towing bar, the towing adjusting devices are integrally rotatably arranged on one side of the towing bar and can rotate upwards or downwards by 90 degrees around the axis of the towing bar, and the towing adjusting devices comprise mud guards A and mud guards B which are mutually perpendicular; the towing hook device is arranged on the other side of the towing rod, and the diameter of the towing hook device is not larger than the diameter of a diversion hole on the sitting-bottom seabed-based observation system; the number of the branch towing cables is equal to the number of the towing adjusting devices and in one-to-one correspondence connection, the lower ends of the branch towing cables are connected with one towing adjusting device, the upper ends of the branch towing cables are connected with the lower ends of the total towing cables, and the upper ends of the total towing cables are connected with the operation fishing boat. The invention carries out artificial salvage and recovery aiming at the seafloor-type seabed-based observation system losing the self-floating capability, and has high success rate, low cost and simple operation.
Description
Technical Field
The invention relates to the technical field of ocean observation, in particular to a salvaging device and method for a sitting-bottom seabed-based observation system after losing self-floating capacity.
Background
The bottom-sitting seabed-based observation system is very important technical equipment in the field of marine environment monitoring, and forms an omnibearing three-dimensional marine observation system together with a sea surface buoy observation system and an air-based remote sensing observation system. The sitting-bottom seabed-based observation system is an important scientific research device for acquiring submarine and water body profile environmental parameter data for a long time and at fixed points in the current ocean scientific observation field.
After the sitting-bottom seabed-based observation system is deployed, data acquisition is carried out on the seabed for a certain period, and after one period, scientific researchers take a ship according to the reservation time to reach the deployed sea area for recovery. Normally, a seafloor-based observation system requires a load-on release device in addition to the sensors necessary for acquiring data, and the release device is mainly composed of an acoustic releaser, a float, a recovery cable, and the like. The scientific research personnel release the floating ball through the control releaser, and one end of the floating ball carrying the recovery cable floats to the water surface, so that the conventional recovery of the sitting-bottom type seabed base observation system is realized.
Aiming at the widely applied sitting-bottom seabed base observation system, the situation that the system cannot be recovered normally can occur in the application process, namely the self-floating capacity is lost, and the system must be manually salvaged. For example: 1) The seabed base observation system is hung on the seabed by a fishing boat trawl, and the acoustic releaser is turned upside down due to the toppling of the fishing boat trawl, so that the floating ball is buckled below the toppled seabed base after being released, and cannot float on the water surface; 2) The floating ball is hung by the abandoned flowing fishing net, the flowing net is covered above the seabed base, and after the floating ball is released by the acoustic releaser, the floating ball is wound into the flowing net and cannot float on the water surface; 3) The floating ball is blocked by other sundries or marine organisms and cannot float upwards; 4) The acoustic releaser runs out of power and cannot receive a release command; 5) River mouth or extreme weather effect causes the submerged buoy to be covered by sediment, the releaser can not receive signals, the floating ball can not be released, and the like. The problem is particularly remarkable in the offshore observation field of China, particularly in the sea area near the Zhoushan islands, and due to the fact that the fishing operation is frequent and the waste flow nets are many, the seabed bases distributed in the sea area by many scientific research units cannot be recovered normally, so that great scientific research loss is caused. At present, the salvaging of the type of the bottom-supported seabed-based observing system losing the self-floating capability is mostly realized by adopting a diving search mode, and the system is suitable for the marine environment with shallow water areas, slow flow speed and high visibility, but the marine environment of the hot spot sea area is usually complicated, and in most cases, the professional heavy diver cannot dive.
Aiming at the problems of submarine observation, chinese patent CN201911064236.0 discloses a recovery device and a recovery method of a releaser failure submerged buoy, wherein the recovery device has the advantages of low cost, high efficiency and the like, but the device has strong pertinence, and can only have recovery capability on a submerged buoy system which is vertically arranged on the seabed and connected by a cable system (the cable system on the submerged buoy is hooked by a specially designed salvage hook), but has no gripping force point on a sitting-bottom seabed observation system and does not have recovery capability; in addition, the device can be realized by the coordination and cooperation of two fishing boats, and has complex operation and high risk.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides a salvage device and a salvage method for a bottom-supported seabed observing system after losing buoyancy, which are used for manually salvaging and recycling the bottom-supported seabed observing system losing self-floating capability.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a salvaging device used for a bottom-sitting seabed-based observation system after losing buoyancy comprises an operation fishing boat, a total towing rope, a branch towing rope, a towing rod device and a towing hook device;
the towing rod device comprises a towing rod and a plurality of towing adjusting devices distributed along the length direction of the towing rod, the towing adjusting devices are integrally rotatably arranged on one side of the towing rod and can rotate upwards or downwards by 90 degrees around the axis of the towing rod, the towing adjusting devices comprise a mud flap A and a mud flap B which are mutually perpendicular, when the mud flap A horizontally contacts the seabed, the mud flap B is vertically upwards, and when the mud flap B horizontally contacts the seabed, the mud flap A is vertically upwards;
the towing hook devices are arranged on the other side of the towing rod and are arranged in a plurality along the length direction of the towing rod, each towing hook device comprises a towing hook, and the diameter of each towing hook is not larger than the aperture of a diversion hole on the bottom-sitting seabed base observation system so that the towing hook can extend into the diversion hole in the salvaging process;
the number of the branch towing cables is equal to that of the towing adjusting devices and the branch towing cables are connected in one-to-one correspondence, the lower end of each branch towing cable is connected with one towing adjusting device, the upper end of each branch towing cable is connected with the lower end of the corresponding main towing cable, and the upper end of the corresponding main towing cable is connected with the operation fishing boat.
In the above scheme, the drag adjusting device further comprises a middle carriage arranged between the fender A and the fender B, and the end part of the middle carriage is a connection point of the drag adjusting device and the branch drag belt cable.
In the above scheme, the middle carriage is mounted on an angular bisector of the fender A and the fender B.
In the scheme, the traction adjusting devices are symmetrically distributed on the cross section of the middle point of the towing bar.
In the scheme, the towing bars are arranged in the horizontal direction, and the length direction of the towing bars is perpendicular to the movement direction of the operation fishing boat.
In the above scheme, the towing hook device further comprises a connecting cable and a connecting ring, wherein the connecting ring is fixedly arranged on the towing rod and is positioned in a horizontal plane, one end of the connecting cable is connected with the connecting ring, and the other end of the connecting cable is connected with the towing hook; the towing hook is a steel multi-claw towing hook.
In the above scheme, the length of the connecting cable is smaller than the distance between two adjacent connecting rings; the interval and the number of the connecting rings are set as follows: the distance between the outer diameters of two adjacent towing hooks is smaller than the side length of the salvaged object, so that the external teeth of the towing hooks can be hung on the diversion holes on the side plates.
In the above scheme, the salvaging device further comprises a picking gun arranged on the same side of the drag adjusting device, wherein a plurality of picking guns are arranged along the length direction of the drag rod and are all positioned in a horizontal plane; the length of the picking gun is not more than that of the mud guard A or the mud guard B.
In the scheme, the diameter of the picking gun is not larger than the diameter of the diversion hole on the sitting-bottom seabed base observation system, so that the towing hook can extend into the diversion hole in the salvaging process.
Correspondingly, the invention also provides a salvaging method for the bottom-supported seabed observing system after the floating loss, which adopts the salvaging device for the bottom-supported seabed observing system after the floating loss and comprises the following steps:
s1, a fishing device is carried by an operation fishing boat to reach the sea area where a sitting-bottom type seabed base observation system is located, and the fishing device is lowered in a downflow area;
s2, after the salvaging device is sunk into the sea, the salvaging device is driven to carry out counter-current towing, when the ship speed is obviously changed, the salvaging device is indicated to carry things, at the moment, the total towing cable and the branch towing cable are sequentially recovered, whether the salvaging device hooks the bottom-supported seabed base observation system or not is checked, if the salvaging is successful, the bottom-supported seabed base observation system is recovered to the operation fishing ship, and the salvaging task is completed;
s3, if the fishing is not successful, the fishing device is driven to the downstream of the seabed base station through the operation fishing boat, the fishing device is lowered again, and the towing is carried out, wherein each towing path is adjacent to the last towing path, so that the complete search of the sea area is ensured, the towing is ensured to be started from the starting point, and the towing is continued until the fishing is completed, and the fishing device is towed until the fishing is beyond the seabed base station.
The invention has the beneficial effects that:
1. the salvaging success rate is high: 1) The fishing device is provided with the towing hook device at one side of the rear end of the towing rod, the towing hook has strong carrying capacity, can flexibly operate by a single ship, can search sea areas in a certain range in a similar form of plowing, has high carrying success rate on targets, and can successfully salvage the targets basically only by searching for one period; 2) The fishing device is characterized in that a row of picking guns are further arranged on one side of the front end of the towing bar, on one hand, fishing nets covered on the sitting-bottom type seabed base observation system can be hung and towed forwards, the seabed base body is exposed as much as possible, space is reserved for hanging the seabed base by the towing hooks, on the other hand, the picking guns also have the function of hanging the seabed base body, the fishing probability is increased, and when the picking guns are firstly inserted into the diversion holes of the seabed base side plates, the picking guns can be directly recovered;
3) The fishing device is characterized in that the front end of the towing rod is provided with a rotatable pulling adjusting device, so that the towing hook device and the picking gun are in a horizontal state when the fishing device is sunk into the sea bottom, and the fishing device is prevented from being inserted into mud.
2) The manufacturing cost is low, and the operation is simple: the invention is based on the design of the towing capacity of a small trawler, and is matched with a towing rod and a towing hook device, so that the trawler can salvage and recover the floating loss and bottom-sitting seabed base observation system in a conventional operation mode of capturing a trawler; in addition, the operation of single ship operation is nimble.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of the structure of a salvaging object sitting-bottom type seabed-based observing system of the salvaging device of the present invention;
FIG. 2 is a schematic view of the overall structure of the fishing device of the present invention;
FIG. 3 is a schematic view of the operation of the deployment of the underwater body of the fishing apparatus of the present invention;
FIG. 4 is a schematic view of a partial structure of the fishing apparatus of the present invention;
in the figure: 1. an operation fishing boat; 2. a total towing cable; 4. branching a towing cable; 5. a tow bar device; 51. a towing bar; 52. a drag adjusting device; 521. a mud guard A; 522. a mud guard B; 523. a wheel A; 524. a wheel B; 525. a middle carriage; 526. a reinforcing rib A; 527. a reinforcing rib B; 6. a towing hook device; 61. a towing hook; 62. a connecting cable; 63. a connecting ring; 7. picking a gun;
300. a bottom-supported seabed-based observation system; 301. a side plate; 302. an observation device; 303. an acoustic releaser floating ball system; 304. and a deflector hole.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1, the fishing target-bottom-supported seabed-based observation system 300 of the fishing device is a mature product which is already marketed, and can be specifically designed into a quadrilateral, a hexagon or an octagon according to the observed sea area, and is provided with 4 or 6 or 8 side plates 301, and the side plates 301 are provided with flow guiding holes 304 with flow guiding effect; the top is provided with a plurality of observation devices 302, and the number and the model of the observation devices 302 can be optionally added and combined according to specific requirements; the top is also provided with an acoustic releaser float system 303. The acoustic releaser float system 303 is also a mature product, commonly used under the brand of EdgeTech Sport, model POP-UP.
As shown in fig. 2, the fishing device for the bottom-sitting seabed-based observation system after the floating loss provided by the embodiment of the invention comprises an operation fishing boat 1, a general towing rope 2, a branch towing rope 4, a towing rod device 5, a towing hook device 6 and a picking gun 7.
The operation fishing boat 1 is a fishing boat with a certain trawl capacity and experience, the number of the operation fishing boats is one, the operation fishing boat 1 is connected with a trawl device 5 through a total trawl cable 2 and a branch trawl cable 4, and the trawl device 5 carries out seabed fishing operation.
The towing bar device 5 comprises a towing bar 51 and several towing adjustment means 52 distributed along the length of the towing bar 51. Wherein, the drag link 51 is a hollow, round bar-shaped steel rod member, the length of which is designed according to the characteristics of sea area and water depth and the drag capacity of the operational fishing boat 1, and the length of which can be designed to be similar to the boat length of the operational fishing boat 1 in general; the drag lever 51 is horizontally oriented, and its longitudinal direction is perpendicular to the direction of movement of the work fishing vessel 1. The drag adjusting device 52 is integrally rotatably installed at one side of the front end of the drag lever 51 and can be rotated up or down by 90 ° around the central axis of the drag lever 51; the drag adjusting device 52 includes a fender a521 and a fender B522 that are disposed perpendicular to each other, and a middle carriage 525 is disposed on an angular bisector of the fender a521 and the fender B522, and an end of the middle carriage 525 is a connection point between the drag adjusting device 52 and the branch towing rope 4. Because these three plates can be rotated up or down by 90 ° as a whole, after sinking into the sea, either the fender a521 is horizontal, the fender B522 is vertical, or the fender B522 is horizontal and the fender a521 is vertical.
The towing hook devices 6 are arranged at one side of the rear end of the towing bar 51, and are uniformly arranged in a plurality along the length direction of the towing bar 51. Each towing hook device 6 comprises a towing hook 61, a connecting cable 62 and a connecting ring 63, wherein the connecting ring 63 is fixedly arranged on the towing rod 51 and is in a horizontal direction, one end of the connecting cable 62 is connected with the connecting ring 63, and the other end is connected with the towing hook 61. The towing hook 61 is a steel 4-6 claw towing hook, and the diameter of the tip claw of the towing hook 61 is not larger than the diameter of the diversion hole on the sitting-bottom seabed-based observation system, so that the towing hook 61 can extend into the diversion hole in the salvaging process. The length of the connecting cable 62 is smaller than the distance between the two adjacent connecting rings 63, so that the probability of collision between the two adjacent towing hooks 61 is reduced, and the towing efficiency is improved. The pitch and number of the connection rings 63 set rules: the distance between the outer diameters of two adjacent towing hooks 61 is smaller than the side length of the object to be salvaged, so as to ensure that the outer teeth of the towing hooks 61 can be hung on the diversion holes 304 on the side plates 301.
The picking gun 7 is arranged at one side of the front end of the towing bar 51 and is positioned at the same side with the towing adjusting device 52, and the picking gun 7 is arranged in a plurality of horizontal directions along the length direction of the towing bar 51. The picking gun 7 has the functions of picking up the fishing net, if the sitting-bottom seabed base observation system is covered with a large-area fishing net, the picking gun 7 firstly hooks the fishing net and drags the fishing net forwards, exposes the seabed base body as much as possible, and leaves a space for the towing hook 61 to hook the seabed base; secondly, the picking gun 7 also has the function of mounting the seabed base body, the salvaging probability is increased, and when the picking gun 7 is firstly inserted into the diversion hole 304 of the seabed base side plate 301, the picking gun 7 can be directly recovered, so that the diameter of the picking gun 7 is designed to be not larger than the diameter of the diversion hole 304 on the sitting-bottom seabed base observation system.
Because the salvaging device can possibly turn over after entering water, if one side of the mud guard A521 is on the sea floor, the mud guard A521 is in a horizontal state, the shovels 7 and the towing hook devices 6 are prevented from being pricked into mud, and the mud guard B522 is in a vertical upward idle state; if the fender B522 is on the sea floor, it is in a horizontal state, and the fender a521 is vertically upward. Therefore, the length of the gun 7 is designed to be not longer than the length of the fender a521 or the fender B522, and the fender a521 or the fender B522 is ensured to come to the sea bottom first.
The number of the branch towing cables 4 is equal to the number of the towing adjusting devices 52 and are connected in a one-to-one correspondence manner, the lower end of each branch towing cable 4 is connected with one towing adjusting device 52, the upper end of each branch towing cable 4 is connected with the lower end of the total towing cable 2, and the upper end of the total towing cable 2 is connected with the operation fishing boat 1. The middle carriage 525 is a main stress component and is connected with the branch towing rope 4, and the branch towing rope 4 is 45 degrees upwards no matter the mud guard A521 or the mud guard B522 faces downwards, so that towing is facilitated.
Further optimizing, the end part of the mud guard A521 is provided with the wheel A523, the end part of the mud guard B522 is provided with the wheel B524, so that the whole device is convenient to advance in the towing process, and the mud is not easy to prick into the soil. A reinforcing rib A526 is arranged between the connection mud guard A521 and the middle carriage 525, a reinforcing rib B527 is arranged between the connection mud guard B522 and the middle carriage 525, and the reinforcing rib is used for reinforcing the mud guard which is connected with the middle carriage 525 and two sides of the middle carriage.
Further preferably, the plurality of drag adjusting means 52 are symmetrically distributed about the cross-section at the midpoint of the drag link 51. The number of drag adjusting means 52 is preferably odd, wherein one drag adjusting means 52 is arranged at the midpoint position of the drag lever 51 and the other drag adjusting means 52 are symmetrically distributed about the cross section at the midpoint position of the drag lever 51. In this embodiment, the number of the drag adjusting devices 52 is three, and the drag adjusting devices are respectively arranged at the middle point and two ends of the drag rod 51, and the three branch drag belt cables 4 are correspondingly arranged; in other embodiments, two traction adjusting devices 52 and two branch towing ropes 4 can be added at bilateral symmetry positions according to actual needs.
Further preferably, the total towing rope 2 is typically a plastic coated steel cable or a high strength towing rope commonly used in trawlers, and the length of the cable is typically designed to be 2.5 times to 3 times the water depth.
Further preferably, the branch towlines 4 are typically high strength towlines, each of which is typically designed to be of a length comparable to the length of the towline 51, to facilitate operations such as lifting on a ship, and to facilitate controlling the balance of the towline when pulling the towline.
Correspondingly, the invention also provides a salvaging method for the bottom-sitting seabed base observation system after failing to float, when the bottom-sitting seabed base observation system completes one period of observation and recovery fails and self-floating cannot be realized, the salvaging device is adopted for salvaging, and the method specifically comprises the following steps:
s1, carrying a salvaging device by an operation fishing boat 1 to reach the sea area where a sitting-bottom type seabed base observation system is located, and lowering the salvaging device in a downflow area: the towing rod 51 is lifted integrally, the towing hook device 6 firstly enters water, the towing rod 51 enters water again, the branch towing rope 4 and the total towing rope 2 are slowly lowered, and the salvaging device sinks into the sea under the action of the gravity of the towing rod 51.
S2, after the salvaging device is sunk into the sea, the salvaging device is driven to carry out countercurrent towing, when the ship speed is obviously changed, the salvaging device is indicated to carry things, at the moment, the total towing cable 2 and the branch towing cable 4 are sequentially recovered, whether the salvaging device hooks the sitting-bottom type seabed base observation system or not is checked, if the salvaging is successful, the sitting-bottom type seabed base observation system is recovered to the operation fishing ship 1, and the salvaging task is completed.
S3, if the fishing is not successful, the fishing device is carried by the operation fishing boat 1 and then is opened to the downstream of the seabed base station, the fishing device is lowered again to carry out towing, and at the moment, attention is paid to the fact that each towing path is adjacent to the last towing path so as to ensure the complete search of the sea area, and the towing is ensured to be started from the starting point until the fishing device is towed to exceed the seabed base station until the fishing is successful.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (10)
1. The salvaging device for the bottom-sitting seabed-based observation system after the loss of floating is characterized by comprising an operation fishing boat, a main towing rope, a branch towing rope, a towing rod device and a towing hook device;
the towing rod device comprises a towing rod and a plurality of towing adjusting devices distributed along the length direction of the towing rod, the towing adjusting devices are integrally rotatably arranged on one side of the towing rod and can rotate upwards or downwards by 90 degrees around the axis of the towing rod, the towing adjusting devices comprise a mud flap A and a mud flap B which are mutually perpendicular, when the mud flap A horizontally contacts the seabed, the mud flap B is vertically upwards, and when the mud flap B horizontally contacts the seabed, the mud flap A is vertically upwards;
the towing hook devices are arranged on the other side of the towing rod and are arranged in a plurality along the length direction of the towing rod, each towing hook device comprises a towing hook, and the diameter of each towing hook is not larger than the aperture of a diversion hole on the bottom-sitting seabed base observation system so that the towing hook can extend into the diversion hole in the salvaging process;
the number of the branch towing cables is equal to that of the towing adjusting devices and the branch towing cables are connected in one-to-one correspondence, the lower end of each branch towing cable is connected with one towing adjusting device, the upper end of each branch towing cable is connected with the lower end of the corresponding main towing cable, and the upper end of the corresponding main towing cable is connected with the operation fishing boat.
2. The fishing device for a bottom-supported seabed observation system as claimed in claim 1, wherein the drag adjusting device further comprises an intermediate carriage disposed between the fender a and the fender B, and an end of the intermediate carriage is a connection point between the drag adjusting device and the branch towing rope.
3. The fishing device for a bottom-supported seabed observation system as claimed in claim 2, wherein the middle carriage is mounted on an angular bisector of the fender a and the fender B.
4. The fishing device for a bottom-supported sea floor observation system according to claim 1, wherein the plurality of drag adjusting means are symmetrically distributed about a cross section at a midpoint of the tow bar.
5. The fishing device for a bottom-supported seabed observation system as claimed in claim 1, wherein the towing bar is arranged horizontally and the length direction thereof is perpendicular to the movement direction of the working fishing vessel.
6. The fishing device for a bottom-supported seabed observation system after no-float as claimed in claim 1, wherein the towing hook device further comprises a connecting cable and a connecting ring, wherein the connecting ring is fixedly installed on the towing bar and is positioned in a horizontal plane, and one end of the connecting cable is connected with the connecting ring, and the other end of the connecting cable is connected with the towing hook; the towing hook is a steel multi-claw towing hook.
7. The fishing device for a bottom-supported seabed observation system as claimed in claim 6, wherein the length of the connecting cable is smaller than the distance between two adjacent connecting rings; the interval and the number of the connecting rings are set as follows: the distance between the outer diameters of two adjacent towing hooks is smaller than the side length of the salvaged object, so that the external teeth of the towing hooks can be hung on the diversion holes on the side plates.
8. The salvaging device for the bottom-sitting seabed-based observation system after no-floating according to claim 1, wherein the salvaging device further comprises a picking gun arranged on the same side of the drag adjusting device, wherein a plurality of picking guns are arranged along the length direction of the drag rod and are all positioned in a horizontal plane; the length of the picking gun is not more than that of the mud guard A or the mud guard B.
9. The fishing device for a bottom-mounted seabed observation system after no-floating as claimed in claim 8, wherein the diameter of the picking gun is not larger than the diameter of the diversion hole on the bottom-mounted seabed observation system, so that the towing hook can extend into the diversion hole during fishing.
10. A salvaging method for a bottom-supported seabed observation system after no-float, characterized in that the salvaging device for a bottom-supported seabed observation system according to any one of claims 1 to 9 is adopted, comprising the following steps:
s1, a fishing device is carried by an operation fishing boat to reach the sea area where a sitting-bottom type seabed base observation system is located, and the fishing device is lowered in a downflow area;
s2, after the salvaging device is sunk into the sea, the salvaging device is driven to carry out counter-current towing, when the ship speed is obviously changed, the salvaging device is indicated to carry things, at the moment, the total towing cable and the branch towing cable are sequentially recovered, whether the salvaging device hooks the bottom-supported seabed base observation system or not is checked, if the salvaging is successful, the bottom-supported seabed base observation system is recovered to the operation fishing ship, and the salvaging task is completed;
s3, if the fishing is not successful, the fishing device is driven to the downstream of the seabed base station through the operation fishing boat, the fishing device is lowered again, and the towing is carried out, wherein each towing path is adjacent to the last towing path, so that the complete search of the sea area is ensured, the towing is ensured to be started from the starting point, and the towing is continued until the fishing is completed, and the fishing device is towed until the fishing is beyond the seabed base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111340027.1A CN113911290B (en) | 2021-11-12 | 2021-11-12 | Fishing device and method for bottom-sitting seabed-based observation system after floating loss |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111340027.1A CN113911290B (en) | 2021-11-12 | 2021-11-12 | Fishing device and method for bottom-sitting seabed-based observation system after floating loss |
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| CN113911290A CN113911290A (en) | 2022-01-11 |
| CN113911290B true CN113911290B (en) | 2023-05-02 |
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Citations (19)
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