CN114056524A - Underwater rotation-preventing tail wing and direct-reading CTD with same - Google Patents
Underwater rotation-preventing tail wing and direct-reading CTD with same Download PDFInfo
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- CN114056524A CN114056524A CN202111484890.4A CN202111484890A CN114056524A CN 114056524 A CN114056524 A CN 114056524A CN 202111484890 A CN202111484890 A CN 202111484890A CN 114056524 A CN114056524 A CN 114056524A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
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- 239000013535 sea water Substances 0.000 description 4
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- 206010024453 Ligament sprain Diseases 0.000 description 2
- 208000010040 Sprains and Strains Diseases 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/14—Control of attitude or depth
-
- 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
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
- B63G2008/002—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations unmanned
- B63G2008/005—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations unmanned remotely controlled
- B63G2008/007—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations unmanned remotely controlled by means of a physical link to a base, e.g. wire, cable or umbilical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an underwater rotation-preventing empennage which comprises a rotation-preventing part for preventing a direct-reading CTD from rotating underwater in the circumferential direction, wherein the rotation-preventing part is connected to a water collecting frame of the direct-reading CTD. Preferably, prevent changeing the piece including support skeleton and high strength tarpaulin, the high strength tarpaulin sets up on support skeleton. Preferably, the support framework comprises a pressure-resistant buoyancy rod and a stainless steel framework, and the pressure-resistant buoyancy rod is arranged at the upper part of the stainless steel framework. Preferably, still including being used for accomodating the support of accomodating of high strength tarpaulin, accomodate support fixed connection on adopting the water frame, withstand voltage buoyancy pole and stainless steel skeleton rotate respectively to be connected in accomodating the support. The invention also discloses a direct-reading CTD. The underwater rotation-preventing tail wing and the direct-reading CTD with the same can be automatically unfolded underwater and automatically folded after water is discharged, so that the underwater rotation-preventing tail wing is prevented from causing steel cable damage when rotating underwater, and the safety of marine instruments and equipment is ensured.
Description
Technical Field
The invention relates to the field of auxiliary equipment for marine investigation, in particular to an underwater anti-rotation empennage and a direct-reading CTD with the empennage.
Background
The thermohaline deep-section instrument (in the invention, abbreviated as CTD) can measure the thermohaline deep-section structure of seawater, plays a very important role in marine investigation, and is one of the most important conventional investigation devices in marine investigation. Almost all scientific research ships are equipped with CTDs, and some scientific research ships are equipped with a plurality of sets of CTDs as backups in order to ensure the smooth implementation of voyage times. If the CTD is damaged, the operation content of the whole voyage is greatly limited, and even the whole investigation work can not be continued.
Because the direct-reading CTD has the functions of real-time on-site monitoring and real-time data returning, the CTD is always favored by marine research and scientists. The direct-reading CTD needs to be communicated with the underwater unit through an armored cable, and the armored cable cannot be additionally provided with a conventional swivel and can only be connected with the underwater unit in a fixed posture. Past observation data tell us that CTD underwater unit is in the rotation state all the time under water, especially deep water or the complicated sea area of flow field, and CTD puts in once and can rotate more than 100 circles. The rotational force cannot be released through the swivel, and the rotational torque is difficult to wind around the pulley and only accumulates at the end of the cable due to the self weight of the device. The phenomenon of knotting of the steel cable often appears in the recovery process, and the steel cable is broken at the knotted part under the high sea condition even because of the swinging and bumping of the ship, so that the equipment is lost. Because the torsion can not be released for a long time, sometimes the knotting and twisting-off phenomenon of the steel cable occurs under the water of thousands of meters, and the strength of the steel cable is reduced due to the low temperature (about 2 ℃) under the water, and the loss of the CTD equipment can also be directly caused.
The direct-reading CTD often has the conditions of knotting of a steel cable and the like, and the steel cable is damaged almost every time when the direct-reading CTD is thrown at a large depth in a sea area with a depth of over 3000 meters under a high sea condition. After the cable is damaged, a part of the cable must be cut off, the joint of the cable and the underwater cable is made again, and if temporary connection is carried out for at least 2 hours, and if vulcanized rubber is adopted, the cable is required to wait for 24 hours before being used continuously. The work is time-consuming and labor-consuming, and the normal operation of marine survey operation is directly influenced. In the prior art, the rotating force is removed in water by additionally arranging the electric swivel, but the method has high cost and high requirement on the performance of the additionally arranged electric swivel.
Thus, improvements in the prior art are needed.
Disclosure of Invention
The present invention is directed to overcoming the disadvantages of the prior art and providing an underwater rotation-preventing tail fin and a direct reading CTD having the same. The underwater rotation-preventing tail wing and the direct-reading CTD with the same can be automatically unfolded underwater and automatically folded after water is discharged, so that the underwater rotation-preventing tail wing is prevented from causing steel cable damage when rotating underwater, and the safety of marine instruments and equipment is ensured.
The technical scheme of the invention is realized as follows:
an underwater rotation-preventing empennage comprises a rotation-preventing part which enables a direct-reading CTD to prevent underwater rotation in the circumferential direction, and the rotation-preventing part is connected to a water collection frame of the direct-reading CTD.
According to above-mentioned prevent the rotation fin under water, prevent that the part includes support chassis and high strength tarpaulin, the high strength tarpaulin sets up on support chassis.
In a preferred embodiment of the present invention, the underwater rotation-preventing tail fin is characterized in that the supporting framework is fixedly connected to the water collecting frame on one side. When the direct-reading CTD equipment is underwater, the anti-rotation piece enables the direct-reading CTD to be in an asymmetric structure, and the tail wing with the anti-rotation piece plays a role of a rudder and prevents an underwater system of the CTD from rotating under the impact of ocean currents.
As another preferable aspect of the present invention, the underwater rotation-preventing tail fin as described above, wherein the support frame includes a pressure-resistant buoyancy rod and a stainless steel frame, and the pressure-resistant buoyancy rod is disposed at an upper portion of the stainless steel frame. Preferably, still including being used for accomodating the support of accomodating of high strength tarpaulin, accomodate support fixed connection on adopting the water frame, withstand voltage buoyancy pole and stainless steel skeleton rotate respectively to be connected in accomodating the support. When the direct-reading CTD equipment is positioned on a deck, the rotation-preventing part is in a drooping state due to the action of gravity, and part of the rotation-preventing part is stored in the storage bracket; when the direct-reading CTD equipment is underwater, the pressure-resistant buoyancy rod can unfold the whole anti-rotation part under the action of seawater buoyancy, so that the direct-reading CTD equipment plays a role of a rudder and prevents a CTD underwater system from rotating under the impact of ocean current. According to the optimal scheme, the empennage is automatically unfolded underwater under the action of buoyancy and gravity, the function of automatic folding after water outlet is achieved, the size of the direct-reading CTD equipment on the deck is not changed, and the direct-reading CTD equipment is convenient to store.
The underwater rotation-preventing empennage is characterized in that the pressure-resistant buoyancy rod is made of glass beads. Under the condition, the pressure-resistant buoyancy rod has high strength and strong buoyancy under water.
According to the underwater rotation-proof empennage, the storage support is U-shaped, and under the condition, the storage is convenient.
Based on the same inventive concept, the invention also provides a direct-reading CTD which is provided with the underwater anti-rotation empennage.
The invention has the beneficial effects that:
the direct-reading CTD equipment is stabilized in one direction underwater by utilizing the flow guiding function of the tail wing, the underwater rotation problem of the equipment is effectively prevented on the premise of not adding other additional energy-consuming equipment, the knotting phenomenon of a steel cable is effectively avoided, the hidden danger that the steel cable is broken at the knotted part and the equipment is lost due to swinging and bumping of a ship under a high sea condition is also avoided, unnecessary loss is reduced, the working capacity of high sea condition operation is ensured, and the economic benefit of the offshore operation is greatly increased.
Drawings
Fig. 1 is a schematic structural view of a direct-reading CTD with an underwater rotation-preventing tail according to the present invention in a non-operating state on a deck.
Fig. 2 is a schematic diagram of a direct-reading CTD with an underwater anti-rotation tail wing according to the present invention in a transition form of automatic folding.
Fig. 3 is a schematic structural diagram of a direct-reading CTD with an underwater rotation-preventing tail wing provided by the present invention in an underwater working state.
Fig. 4 is a top view of a direct reading CTD with an underwater rotation-preventing tail according to the present invention in an underwater working state.
The system comprises a pressure-resistant buoyancy rod, a high-strength waterproof cloth, a stainless steel skeleton, a storage support, a CTD (computer-to-digital) underwater system and a water collection frame, wherein the pressure-resistant buoyancy rod is 1, the high-strength waterproof cloth is 2, the stainless steel skeleton is 3, the storage support is 4, and the CTD underwater system is 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the contents in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
An underwater rotation-preventing empennage includes rotation-preventing members for preventing a direct-reading CTD from rotating underwater in a circumferential direction, the rotation-preventing members being connected to a water collection frame 6 of the direct-reading CTD. Preferably, prevent changeing the piece including support skeleton and high strength tarpaulin 2, high strength tarpaulin 2 sets up on support skeleton. Preferably, the supporting framework is fixedly connected to the water sampling frame 6.
In the prior art, the direct-reading CTD device is generally a cylindrical symmetrical structure, and the empennage is arranged on one side of the direct-reading CTD device in the embodiment, so that the direct-reading CTD device becomes an asymmetrical structure, and the direct-reading CTD device is stabilized in one direction under water under the flow guide effect of the empennage, so that the problem of underwater rotation of the device is effectively prevented under the premise of not adding additional other energy consumption devices, unnecessary loss is reduced, the working capacity of high-sea-condition operation is ensured, and the economic benefit of offshore operation is greatly increased.
The underwater anti-rotation tail fin of the embodiment is additionally arranged on the existing direct-reading CTD, and the anti-rotation effect of the underwater anti-rotation tail fin is checked by using an acoustic Doppler profiler (LADCP) device for measuring the flow velocity and the flow direction of seawater (a compass carried by the LADCP device can record the rotation number of the device under water). Through tests, before the underwater anti-rotation tail wing is not additionally installed, the whole CTD can rotate for several or even tens of circles under water, and sprain can occur on average in every 3 large-depth thrown (more than 3000 meters) steel cables. After the underwater anti-rotation tail wing is additionally arranged, the rotation angle of the whole underwater equipment is limited and hardly exceeds one circle, and after the underwater anti-rotation tail wing is thrown for many times in ten-kilometer levels, the conventional sprain of a steel cable does not occur. The underwater anti-rotation empennage provided by the embodiment has a remarkable anti-rotation effect.
Example 2
The difference from the embodiment 1 is that the embodiment provides an underwater rotation prevention empennage which can be stored. Specifically, the support skeleton includes withstand voltage buoyancy pole 1 and stainless steel skeleton 3, withstand voltage buoyancy pole 1 sets up in the upper portion of stainless steel skeleton 3. Preferably, still include and be used for accomodating the support 4 of accomodating high strength tarpaulin 2, accomodate support 4 fixed connection on water sampling frame 6, withstand voltage buoyancy pole 1 and stainless steel skeleton 3 rotate respectively and connect in accomodating support 4. Preferably, the pressure-resistant buoyancy rod 1 is made of glass beads. Preferably, the storage rack 4 is U-shaped. Preferably, the receiving bracket 4 is made of stainless steel.
In this embodiment, when the direct-reading CTD device is on the deck, the rotation preventing member will be in a drooping state due to the action of gravity, and a part of the rotation preventing member is stored in the storage bracket 4; when the direct-reading CTD equipment is underwater, the pressure-resistant buoyancy rod 1 can unfold the whole anti-rotation part due to the buoyancy effect of seawater, so that the action of a rudder is achieved, and the CTD underwater system 5 is prevented from rotating under the impact of ocean current. This embodiment utilizes buoyancy and gravity effect under water to make the fin realize automatic the expansion under water, goes out the automatic function of folding behind the water, does not change the size of direct reading formula CTD equipment on the deck, is convenient for accomodate. The underwater system 5 according to the present invention is a system including a frame, a water collection bottle, a sensor mounted on the frame, and the like, which is immersed in water and operated.
Through tests, the automatic unfolding function of the underwater anti-rotation empennage provided by the embodiment is well unfolded underwater, and the underwater anti-rotation empennage is changed into an asymmetric structure and plays a role in flow guiding. The size of the device is not changed by the automatic folding function, the requirement of the pre-designed storage space is met, the size of the A frame is adapted to the use in the releasing process, and the releasing and the use cannot be influenced by the change of the size. The A frame in the embodiment refers to a conventional hoisting device on a ship and is transferred to a portal frame used on the outboard of the ship, and the A frame or the A frame is commonly called as the A frame due to the appearance like a capital letter A.
Example 3
A direct-reading CTD having an underwater anti-rotation tail as described in embodiment 1 or embodiment 2.
The direct-reading CTD provided by the embodiment effectively avoids the knotting phenomenon of the steel cable, also avoids the hidden trouble that the steel cable is broken at the knotted part and the equipment is lost due to the swinging and jolting of the ship under the high sea condition, reduces the unnecessary loss and ensures the working capacity of the high sea condition operation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An underwater rotation-preventing empennage is characterized by comprising a rotation-preventing part which enables a direct-reading CTD to prevent underwater rotation in the circumferential direction, wherein the rotation-preventing part is connected to a water collecting frame (6) of the direct-reading CTD.
2. Underwater anti-rotation tail according to claim 1, characterised in that the anti-rotation means comprise a supporting skeleton and a high-strength tarpaulin (2), the high-strength tarpaulin (2) being arranged on the supporting skeleton.
3. Underwater anti-rotation tail according to claim 2 characterized in that the supporting framework is fixedly connected to the water-mining frame (6) on one side.
4. Underwater anti-rotation tail according to claim 2 characterised in that the supporting skeleton comprises a pressure-resistant buoyancy rod (1) and a stainless steel skeleton (3), the pressure-resistant buoyancy rod (1) being arranged on the upper part of the stainless steel skeleton (3).
5. The underwater rotation-preventing empennage as claimed in claim 4, further comprising a storage bracket (4) for storing the high-strength waterproof cloth (2), wherein the storage bracket (4) is fixedly connected to the water collection frame (6), and the pressure-resistant buoyancy rod (1) and the stainless steel frame (3) are respectively and rotatably connected to the storage bracket (4).
6. Underwater anti-rotation tail according to claim 5, characterised in that the pressure-resistant buoyancy rod (1) is made of glass micro beads.
7. Underwater anti-rotation tail according to claim 5, characterised in that the receiving bracket (4) is U-shaped.
8. A direct-reading CTD, characterized in that it has an underwater rotation-proof tail wing as claimed in claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111484890.4A CN114056524A (en) | 2021-12-07 | 2021-12-07 | Underwater rotation-preventing tail wing and direct-reading CTD with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111484890.4A CN114056524A (en) | 2021-12-07 | 2021-12-07 | Underwater rotation-preventing tail wing and direct-reading CTD with same |
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| CN114056524A true CN114056524A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111484890.4A Pending CN114056524A (en) | 2021-12-07 | 2021-12-07 | Underwater rotation-preventing tail wing and direct-reading CTD with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117292877A (en) * | 2023-11-24 | 2023-12-26 | 中国海洋大学 | Special armoured cable torsion assessment and force unloading device for scientific investigation ship winch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5592900A (en) * | 1978-12-29 | 1980-07-14 | Commw Of Australia | Wing stretching apparatus |
| CN106218838A (en) * | 2016-07-21 | 2016-12-14 | 中北大学 | The deep turbulent closure scheme matrix type profile observation system in full sea based on MEMS technology |
| CN108674617A (en) * | 2018-04-28 | 2018-10-19 | 中国海洋大学 | Underwater intelligent floating instrument device and its control system |
| CN110834697A (en) * | 2019-12-13 | 2020-02-25 | 中国科学院沈阳自动化研究所 | Flexible foldable wing device for underwater robot |
| CN112783179A (en) * | 2020-12-25 | 2021-05-11 | 中国船舶重工集团有限公司第七一0研究所 | Mooring section submerged buoy external hanging type deviation control device |
| CN113624211A (en) * | 2021-10-12 | 2021-11-09 | 自然资源部第一海洋研究所 | LADCP and USBL combined observation device and use method thereof |
-
2021
- 2021-12-07 CN CN202111484890.4A patent/CN114056524A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5592900A (en) * | 1978-12-29 | 1980-07-14 | Commw Of Australia | Wing stretching apparatus |
| CN106218838A (en) * | 2016-07-21 | 2016-12-14 | 中北大学 | The deep turbulent closure scheme matrix type profile observation system in full sea based on MEMS technology |
| CN108674617A (en) * | 2018-04-28 | 2018-10-19 | 中国海洋大学 | Underwater intelligent floating instrument device and its control system |
| CN110834697A (en) * | 2019-12-13 | 2020-02-25 | 中国科学院沈阳自动化研究所 | Flexible foldable wing device for underwater robot |
| CN112783179A (en) * | 2020-12-25 | 2021-05-11 | 中国船舶重工集团有限公司第七一0研究所 | Mooring section submerged buoy external hanging type deviation control device |
| CN113624211A (en) * | 2021-10-12 | 2021-11-09 | 自然资源部第一海洋研究所 | LADCP and USBL combined observation device and use method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117292877A (en) * | 2023-11-24 | 2023-12-26 | 中国海洋大学 | Special armoured cable torsion assessment and force unloading device for scientific investigation ship winch |
| CN117292877B (en) * | 2023-11-24 | 2024-02-23 | 中国海洋大学 | Special armoured cable torsion assessment and force unloading device for scientific investigation ship winch |
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Application publication date: 20220218 |