CN112141268A - Novel power type fish-thunder anchor based on bionics and installation method thereof - Google Patents
Novel power type fish-thunder anchor based on bionics and installation method thereof Download PDFInfo
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- CN112141268A CN112141268A CN202010960167.8A CN202010960167A CN112141268A CN 112141268 A CN112141268 A CN 112141268A CN 202010960167 A CN202010960167 A CN 202010960167A CN 112141268 A CN112141268 A CN 112141268A
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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
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/26—Anchors securing to bed
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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
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
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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
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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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
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/26—Anchors securing to bed
- B63B2021/265—Anchors securing to bed by gravity embedment, e.g. by dropping a pile-type anchor from a certain height
Abstract
The invention discloses a novel power type fish-thunder anchor based on bionics and an installation method thereof, and belongs to the technical field of deep sea anchoring. Comprises a rotary anchor point, an anchor rod, an anchor wing and a simple water-flushing engine part; the simple water-jet-compression engine is started while the traditional torpedo free-falling body movement installation is combined, so that the greater initial penetration speed is obtained, and the penetration depth of the torpedo anchor is improved; negative poisson ratio materials are additionally arranged on the anchor rods and the anchor wings, and the characteristics of compression contraction and tension expansion of the negative poisson ratio materials are utilized to reduce the penetration resistance and improve the uplift bearing capacity. The invention has the advantages of high initial penetration speed, deep installation penetration and high uplift bearing capacity.
Description
Technical Field
The invention belongs to the technical field of deep sea anchoring, and particularly relates to a novel dynamic type torpedo anchor based on bionics and an installation method thereof.
Background
In recent years, as offshore energy exploitation is gradually promoted to deep sea, an anchoring system suitable for a deep sea oil production platform is widely concerned by the ocean industry. The fish-stone anchor is widely applied to ocean engineering construction due to the advantages of simple installation, convenient operation and low cost.
The negative Poisson ratio material is a novel metamaterial with the characteristics opposite to those of the traditional positive Poisson ratio material, and is expanded in a direction perpendicular to a tension direction when being tensioned and contracted in a direction perpendicular to a pressure direction when being compressed. Researchers have first demonstrated the presence of negative poisson's ratio properties in pyrite crystals; it was subsequently found that 69% of the cubic structured metal and the solid rare metal having a face-centered cubic structure both have a negative poisson's ratio characteristic. Until the 80's of the last century, negative poisson's ratio materials with a poisson's ratio number of-0.7 were obtained in laboratories, from which a rapid development phase was entered. At present, negative poisson ratio materials are applied to mining of geotechnical engineering, slope reinforcement of geosynthetic materials and anchor cable reinforcement due to special properties of the negative poisson ratio materials. However, it has not been applied to the field of marine anchoring technology.
The octopus is called a water rocket, the tail part of the octopus is forward when the octopus walks, the tentacle is in a belt shape and is tightly attached to the head part, water is sprayed out from a funnel-shaped pipe below the abdominal cavity after muscle contraction, and the reaction force generated by the water rocket pushes the octopus to move forward. Jet planes, rockets and water jet vessels are all designed and manufactured according to the swimming principle of octopus. The water-flushing engine has the working principle similar to that of octopus swimming, and has sea water introduced into the water storing bin, metal fuel and water reacted inside the combustion chamber to release great amount of high pressure gas, and the high pressure gas is exhausted directly or indirectly to push underwater structure to move forward. The water-flushing engine directly introduces water from the outside as an oxidant, so that the load carrying the oxidant is reduced. The study of water reaction metal fuel and water pressure engine was carried out by various scholars in the world since the last 40 th century. The active metal fuel is mainly concentrated on: na, Li, K, Al, Mg and Be, Be providing the highest energy density by reaction with water, but Li, Al and Mg are the most potential active metals for development because Be is a highly toxic substance and is less expensive and less expensive.
Before the invention, Chinese invention patents ' a performance test device of a water absorption type solid fuel ramjet engine ' (patent number: ZL201910988615.2) ' a semi-cladding type multistage power underwater high-speed propeller and a control method thereof ' (patent number: ZL201811560299.0) ' and Chinese utility model patent ' cyclone type water-flushing engine ' (patent number: ZL201520981286.6) propose three water-flushing engine modes, but the three modes need an ignition device to ignite a metal solid material bin and a water valve to adjust the water content to control the reaction speed or stir the metal solid material device. The above devices all require an additional power source (e.g. power source) for their operation, which is difficult to implement in torpedo anchors, since deep sea torpedo anchors are difficult to receive with an additional power source penetrating 3-4 times the anchor length and the additional power source will add significantly to the cost of the anchoring system. The Chinese invention patent 'sodium water reaction water-jet engine' (patent number: ZL201610533751.9) provides a device using sodium as metal fuel, although sodium is easy to react with water at normal temperature, the energy density of the reaction of sodium and seawater is far lower than that of aluminum or magnesium. The Chinese utility model 'new water drive rotary torpedo anchor' (patent number: ZL201521132419.9) proposes that the torpedo anchor can only improve the falling speed in water when the water flow passes through the spiral anchor wing to push the anchor body to rotate and increase the injection power in the falling process. In order to overcome the defects of the technical innovation in the application of the torpedo anchor, the development of a novel dynamic torpedo anchor based on bionics and an installation method thereof are particularly important.
Disclosure of Invention
The invention provides a novel dynamic torpedo anchor based on bionics and an installation method thereof, aiming at solving the problems that the traditional torpedo anchor is insufficient in installation penetration depth and limits the uplift bearing capacity to a certain extent.
The technical scheme of the invention is as follows:
a novel dynamic type fish-thunder anchor based on bionics comprises anchor wings, an anchor rod, a rotary anchor tip and a simple water-flushing engine. The simple water-ram engine is divided into a water-ram engine at the anchor rod and a water-ram engine at the anchor tip.
The outer surface of the tail end of the anchor rod is provided with anchor wings, and the front end of the anchor rod is connected with a rotary anchor point through a rotating shaft; the water-jet engine at the anchor rod is located at 1/3-1/2 of the upper portion of the anchor rod, and high-pressure gas is discharged from a funnel-shaped exhaust port at the top of the anchor rod to push the torpedo anchor to advance. The anchor point water ramjet engine is positioned in the rotary anchor point, and 2 groups of symmetrical inclined tubular exhaust ports of the anchor point water ramjet engine give inclined lateral driving force to the rotary anchor point, so that the rotary anchor point rotates.
The water-flushing engine at the anchor rod comprises an anchor rod metal solid bin, an anchor rod water bin water inlet, an anchor rod metal solid bin filter screen, an anchor rod exhaust bin, an anchor rod water bin water inlet plug and an anchor rod end exhaust port.
The upper surface of the anchor rod metal solid material bin is connected with the anchor rod exhaust bin through an anchor rod metal solid material bin filter screen, the top end of the anchor rod exhaust bin is provided with an anchor rod end exhaust port, the anchor rod metal solid material bin is arranged in the anchor rod, an anchor rod water bin is arranged between the anchor rod metal solid material bin and the anchor rod exhaust bin, and the two sides of the lower end of the anchor rod water bin are provided with anchor rod water inlets which are plugged through anchor rod water bin water inlets; and the two sides of the upper end of the anchor rod metal solid material bin are provided with water inlets of the anchor rod metal solid material bin.
The anchor rod metal solid material bin can be detached and independently transported and installed, and the assembly of the water-jet-compression engine at the anchor rod is completed through an anchor rod water-jet-compression engine cabin door and an anchor combustion screw.
The water-flushing engine at the anchor tip comprises an anchor tip metal solid material bin, an anchor tip water inlet, an anchor tip metal solid material bin filter screen, an anchor tip water inlet plug, an anchor tip exhaust channel and an anchor tip exhaust port.
The anchor point metal solid material bin is of a conical structure and is positioned in the center of the rotary anchor point, an anchor point metal solid material bin filter screen is arranged on the upper surface of the anchor point metal solid material bin, 2 groups of symmetrical inclined tubular anchor point exhaust ports are arranged on the side surface of the anchor point metal solid material bin, and the anchor point exhaust ports are connected through an anchor point exhaust channel; the anchor point water inlet is positioned below the anchor point exhaust port and is blocked by the anchor point water inlet plug.
And a layer of honeycomb negative poisson ratio material is connected outside the anchor wings and the anchor rod.
The anchor rod metal solid material storehouse, can dismantle the transportation of installing alone, avoid the slope of active metal fuel in the transportation to spill and the oxidation, guarantee modular production and partial shipment transportation again to reduce cost. The metal solid material bin is provided with a sealing cover which can be opened outwards only in one direction.
The rotary anchor point is provided with 2-4 spiral blades, the two ends of the rotary anchor point are narrow, the middle of the rotary anchor point is wide, the outer edge of the rotary anchor point is thin, the inner side of the rotary anchor point is thick, and water flow can push the anchor point to rotate when the rotary anchor point falls in water. The anchor point and the anchor rod can be separated, and the metal solid material bin at the anchor point is installed and transported along with the anchor point.
The anchor wing is composed of 2-4 trapezoidal, rectangular or triangular steel plates, the width of the wing is 0.5-1.5 m, the length of the wing is 1/3-2/3, the length of the anchor is 0.07-0.08 m, and the thickness of the wing is 0.07-0.08 m.
The anchor rods are steel pipes, the diameter of each anchor rod is 0.75-1.20 m, the length of each anchor rod is 15.0-17.5 m, the water ram pressure engines are arranged at the positions 1/3-1/2 of the upper portion of each anchor rod, and the balance weight is added to the portions 1/2-2/3 of the lower portion of each anchor rod by taking concrete or broken stones as fillers.
Active metal fuel is arranged in the metal solid bin, and the active metal fuel is Al, Mg, Li, Na and K or Al, Mg and Li alloy, Na and Al alloy and K, Na alloy; the advantage of an alloy-reactive metal fuel is that it starts to react with water at a relatively low temperature and enables a high energy density to be obtained. Al, Mg and Li alloy active metal fuels are preferred in the present invention.
A bionic-based novel dynamic type fish-stone anchor mounting method comprises the following steps:
the first step is as follows: before the anchor body is lowered, an anchor rod metal solid material bin and a rotary anchor point are installed at the designed position of the anchor rod.
The second step is that: and hoisting the anchor body to the designed falling height.
The third step: after the anchor rod and the anchor tip water inlet plug are removed, the anchor rod and the anchor tip water inlet plug are released within 15-30 seconds, seawater enters the water sump under the action of water pressure while the anchor body freely falls, and then enters the anchor rod metal solid material bin through the water inlet to react with active metal fuel.
The fourth step: the water and the active metal fuel react to generate high-pressure gas mixed with hydrogen and water vapor, the pressure in the anchor rod metal solid bin is greater than the external water pressure, the sealing cover at the water inlet is tightly pressed and closed, the seawater can not continuously flow into the anchor rod metal solid bin, and meanwhile, the high-pressure gas rushes out the sealing cover at the exhaust port to exhaust gas.
The fifth step: after the high-pressure gas is discharged, the pressure of the metal solid bin of the anchor rod is reduced, the sealing cover of the exhaust port is closed under the action of the pressure of the seawater, the outside seawater is continuously supplied to the metal solid bin from the water inlet, the high-pressure gas is generated again, and the anchor body is pushed to advance and the rotating anchor tip is rotated in a circulating reciprocating mode.
And a sixth step: when the working anchor chain is tensioned, the negative poisson ratio materials at the anchor rod and the anchor wing are tensioned and expanded to increase the stressed area; the concave structure increases the interface friction force, thereby improving the pulling resistance bearing capacity.
Preferably, the first installation step may be performed at the initial stage of anchor release, or during free fall.
The negative Poisson ratio material is a concave polygonal structure, a rotary polygonal structure, a chiral structure, a perforated plate structure, an interlocking polygonal structure, a metal material with a node-fiber structure or a fold structure, an FCC crystal, a multiple Poisson ratio material, polyurethane foam or a polytetrafluoroethylene composite negative Poisson ratio material, and the negative Poisson ratio material can be one or a combination of a plurality of materials, and has the thickness of 0.02 m-0.03 m. The anchor wings and the anchor rods can be additionally provided with integral negative Poisson ratio materials; or 2-5 negative poisson ratio materials are additionally arranged at intervals, and the distance between the two negative poisson ratio materials is 0-0.5 m; to ensure an increase in load bearing capacity while controlling costs.
The invention has the advantages that: the novel power mode of self-weight injection and power injection is combined, so that the torpedo anchor obtains higher initial injection speed and installation depth; the simple water stamping starting device enables the anchor tip to rotate rapidly, and mounting power is increased; the novel negative Poisson's ratio material is adopted to increase the uplift bearing capacity of the fish-thunder anchor, and further the applicable soil body range of the fish-thunder anchor is enlarged.
Drawings
Fig. 1 is a front view of the novel dynamic torpedo anchor of the present invention.
Fig. 2 is a diagram of the anchor rod of the novel dynamic torpedo anchor.
Fig. 3 is a cross-sectional view of the novel dynamic torpedo anchor of the present invention.
Fig. 4 is a schematic structural diagram of the anchor rod water-ram engine of the invention.
Fig. 5 is a top view of the present invention.
Fig. 6 is a schematic structural view of the anchor point water-jet pressure engine of the invention.
In the figure: 1-anchor wing; 2-anchor rod; 3-rotating the anchor tip; 4-a helical blade; 5-anchor rod end exhaust port; 6-anchor tip exhaust port, 7-rotation axis; 8-anchor rod water is used for pressing the engine compartment door; 9-anchor rod metal solid material bin; 10-anchor rod water sump; 11-anchor rod water bin water inlet; 12-anchor rod metal solid material bin water inlet; 13-anchor rod metal solid material bin filter screen; 14-anchor bar exhaust bin; 15-anchor tip metal solid material bin; 16-anchor point water inlet; 17-anchor point metal solid material bin filter screen; 18-anchor rod water sump inlet plug; 19-anchor burning screw; 20-anchor point water inlet plug; 21-anchor tip exhaust passage.
Detailed description of the invention
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and technical solutions:
example 1:
a novel dynamic type fish-thunder anchor based on bionics comprises anchor wings 1, an anchor rod 2, a rotary anchor tip 3 and a simple water-flushing engine. The simple water-flushing engine is divided into a water-flushing engine at an anchor rod and a water-flushing engine at an anchor tip. The water-jet-compression engine at the anchor rod position consists of an anchor rod metal solid material bin 9, an anchor rod water bin 10, an anchor rod water bin water inlet 11, an anchor rod metal solid material bin water inlet 12, an anchor rod metal solid material bin filter screen 13, an anchor rod exhaust bin 14, an anchor rod water bin water inlet plug 18 and an anchor rod end exhaust port 5. The anchor point water ramjet engine consists of an anchor point metal solid material bin 15, an anchor point water inlet 16, an anchor point metal solid material bin filter screen 17, an anchor point water inlet plug 20, an anchor point exhaust channel 21 and an anchor point exhaust port 6. The anchor rod metal material fixing bin 9 can be detached and independently transported and installed, and the assembly of the water-jet-compression engine at the anchor rod position is completed through the anchor rod water-jet-compression engine cabin door 8 and the anchor combustion screw 19. As shown in fig. 1, a layer of honeycomb negative poisson's ratio material is connected outside the anchor wings 1 and the anchor rod 2. The rotary anchor tip 3 is provided with 4 bolt blades 4, the two ends of the rotary anchor tip are narrow, the middle of the rotary anchor tip is wide, and the outer edge of the rotary anchor tip is thin and the inner side of the rotary anchor tip is thick; the anchor point 3 is connected with the anchor rod 2 through a rotating shaft 7.
Example 2:
the invention relates to a novel mounting method of a dynamic type fish-stone anchor, which mainly comprises the following steps:
firstly, a metal solid bin 9 and a rotary anchor tip 3 at the anchor rod 2 are installed before the anchor body is lowered. The length of the anchor rod 2 is 12.0-17.5 m (12.5 m in the embodiment), the anchor diameter is 0.75-1.20 m (1 m in the embodiment), the width of the anchor wing 1 is 0.5-1.5 m (1.2 m in the embodiment), the length of the anchor wing 1 is 1/3-2/3 (1/2 in the embodiment), the thickness of the anchor wing 1 is 0.07-0.08 m (0.08 m in the embodiment), the length of the rotary anchor tip 3 is 2.5m in the embodiment, the thickness of 1-5 honeycomb metal negative poisson's ratio materials added to the anchor wing (added in the embodiment) is 0.02-0.03 m (0.02 m in the embodiment), the maximum vertical projection diameter of the anchor tip 3 and the spiral blade is 1m, and the metal fixing bin is installed at 1/3-1/2 of the upper portion of the anchor rod 2 (1/3 in the embodiment).
Next, the anchor body is suspended to a designed drop height of 50m to 150m (100 m above the surface of the seabed in this example).
Then, after the anchor rod sump inlet plug 18 and the anchor point inlet plug 20 are removed, the release is carried out within 15 seconds. When the novel power type torpedo anchor falls freely, seawater enters the anchor rod water bin 10 through the anchor rod water bin water inlet 11, and then enters the anchor rod metal solid material bin 9 through the anchor rod metal solid material bin water inlet 12 under the action of water pressure to react with Li, Al and Mg alloy fuel. At the anchor point, seawater enters the anchor point metal solid material bin 15 through the anchor point water inlet 16 to react with Li, Al and Mg alloy fuel.
TABLE 1 reaction equation for Li, Al, Mg alloys with water
Thirdly, water reacts with Li, Al and Mg alloy fuel to generate high-pressure gas mixed with hydrogen and water vapor, the pressure in the metal solid bin is larger than the external water pressure, the sealing covers at the water inlet 12 and the anchor point water inlet 16 of the anchor rod metal solid bin are tightly pressed and closed (the sealing covers are only opened inwards in one direction), so that seawater cannot continuously flow into the metal solid bin, and the high-pressure gas directly flows through the anchor rod exhaust bin 14 and the anchor point exhaust channel 21 and rushes open the sealing covers at the anchor rod end exhaust port 5 and the anchor point exhaust port 6 (the sealing covers are only opened outwards in one direction) to be directly discharged.
Then, after the high-pressure gas is discharged, the pressure of the anchor rod metal solid material bin 9 and the anchor point metal solid material bin 15 is reduced, the sealing covers at the anchor rod end exhaust port 5 and the anchor point exhaust port 6 close the external seawater under the action of the seawater pressure and continuously supply the external seawater to the metal solid material bin from the anchor rod water bin water inlet 11 and the anchor point water inlet 16, the high-pressure gas is generated again, and the anchor body is pushed to advance and the anchor point 3 is pushed to rotate in a circulating reciprocating mode.
Finally, when the working anchor chain is tensioned, the honeycomb-shaped metal negative poisson ratio material at the positions of the novel dynamic torpedo anchor rod 2 and the anchor wings 1 is tensioned to expand to increase the stressed area; the concave structure increases the interface friction force, thereby improving the pulling resistance bearing capacity.
Example 3:
the invention relates to a novel mounting method of a dynamic type fish-stone anchor, which mainly comprises the following steps:
firstly, a metal solid bin 9 and a rotary anchor tip 3 at the anchor rod 2 are installed before the anchor body is lowered. The length of the anchor rod 2 is 12.0m, the anchor diameter is 0.75m, the width of the anchor wing 1 is 0.5m, the length of the anchor wing 1 is 1/3, the thickness of the anchor wing 1 is 0.07m, the length of the rotary anchor tip 3 in the embodiment is 2.5m, the thickness of the anchor wing added with 1-5 honeycomb metal negative poisson's ratio materials (the whole anchor tip is added in the embodiment) is 0.03m, the maximum vertical projection diameter of the anchor tip 3 and the spiral blade is 1m, and the metal fixing bin is arranged at the upper part 1/2 of the anchor rod 2.
Next, the anchor body was suspended to a designed drop height of 150 m.
Then, after the anchor rod sump inlet plug 18 and the anchor point inlet plug 20 are removed, the release is carried out within 15 seconds. When the novel power type torpedo anchor falls freely, seawater enters the anchor rod water bin 10 through the anchor rod water bin water inlet 11, and then enters the anchor rod metal solid material bin 9 through the anchor rod metal solid material bin water inlet 12 under the action of water pressure to react with Li, Al and Mg alloy fuel. At the anchor point, seawater enters the anchor point metal solid material bin 15 through the anchor point water inlet 16 to react with Li, Al and Mg alloy fuel.
Claims (9)
1. A novel dynamic type fish-thunder anchor based on bionics is characterized by comprising anchor wings (1), an anchor rod (2), a rotary anchor tip (3) and a simple water flushing engine; the simple water-flushing engine is divided into a water-flushing engine at an anchor rod and a water-flushing engine at an anchor tip;
the outer surface of the tail end of the anchor rod (2) is provided with an anchor wing (1), and the front end of the anchor rod (2) is connected with a rotary anchor point (3) through a rotating shaft 7; the water-flushing engine at the anchor rod is positioned at 1/3-1/2 of the upper part of the anchor rod (2), and high-pressure gas is discharged from a funnel-shaped exhaust port at the top of the anchor rod (2) to push the torpedo anchor to advance; the water ramjet engine at the anchor point is positioned in the rotary anchor point (3), and 2 groups of symmetrical inclined tubular exhaust ports of the water ramjet engine at the anchor point give an inclined lateral driving force to the rotary anchor point (3), so that the rotary anchor point (3) rotates;
the water-jet-compression engine at the anchor rod comprises an anchor rod metal solid material bin (9), an anchor rod water bin (10), an anchor rod water bin water inlet (11), an anchor rod metal solid material bin water inlet (12), an anchor rod metal solid material bin filter screen (13), an anchor rod exhaust bin (14), an anchor rod water bin water inlet plug (18) and an anchor rod end exhaust port (5);
the upper surface of the anchor rod metal solid material bin (9) is connected with an anchor rod exhaust bin (14) through an anchor rod metal solid material bin filter screen (13), an anchor rod end exhaust port (5) is formed in the top end of the anchor rod exhaust bin (14), the anchor rod metal solid material bin (9) is arranged in the anchor rod (2), an anchor rod water bin (10) is arranged between the anchor rod metal solid material bin and the anchor rod exhaust bin, and anchor rod water bin water inlets (11) are formed in two sides of the lower end of the anchor rod water bin (10) and are blocked through an anchor rod water bin water inlet plug (18); two sides of the upper end of the anchor rod metal solid material bin (9) are provided with anchor rod metal solid material bin water inlets (12);
the anchor rod metal solid material bin (9) is provided with a sealing cover, can be opened outwards only in one direction, can be detached and independently transported and installed, and completes the assembly of the water-jet-compression engine at the anchor rod through an anchor rod water-jet-compression engine cabin door (8) and an anchor combustion screw (19);
the water-flushing engine at the anchor tip comprises an anchor tip metal solid material bin (15), an anchor tip water inlet (16), an anchor tip metal solid material bin filter screen (17), an anchor tip water inlet plug (20), an anchor tip exhaust channel (21) and an anchor tip exhaust port (6);
the anchor point metal solid material bin (15) is of a conical structure and is positioned in the center of the rotary anchor point (3), an anchor point metal solid material bin filter screen (17) is arranged on the upper surface of the anchor point metal solid material bin (15), 2 groups of symmetrical inclined tubular anchor point exhaust ports (6) are arranged on the side surface of the anchor point metal solid material bin (15), and the anchor point exhaust ports (6) are connected through an anchor point exhaust channel (21); the anchor point water inlet (16) is positioned below the anchor point exhaust port (6) and is blocked by an anchor point water inlet plug (20); the metal solid bin is internally provided with active metal fuel; the anchor wings (1) and the anchor rods (2) can be additionally provided with integral negative Poisson ratio materials; or 2-5 negative poisson ratio materials are additionally arranged at intervals, and the distance between the two negative poisson ratio materials is 0-0.5 m.
2. The new dynamic type fish-thunder anchor based on bionics of claim 1, characterized by that, the said rotatory anchor point (3), have 2-4 spiral blades (4), present both ends narrow, the middle is wide, the outer fringe is thin, the inside is thick, the waterflow will promote the anchor point to rotate too while falling in the water; the anchor point and the anchor rod can be separated, and the metal solid material bin at the anchor point is installed and transported along with the anchor point.
3. The dynamic type fish-thunder anchor based on bionics as claimed in claim 1 or 2, wherein the anchor wing is composed of 2-4 trapezoidal, rectangular or triangular steel plates, the width of the wing is 0.5-1.5 m, the length of the wing is 1/3-2/3, the anchor length and the thickness of the wing are 0.07-0.08 m.
4. The dynamic type torpedo anchor based on bionics as claimed in claim 1 or 2, characterized in that the anchor rod (2) is a steel pipe, the diameter of the steel pipe is 0.75 m-1.20 m, the length of the steel pipe is 15.0 m-17.5 m, the water ram engine is arranged at the anchor rod position at the upper part 1/3-1/2, and the balance weight is added at the lower part 1/2-2/3 part by using concrete or broken stone as filler.
5. The novel dynamic type torpedo anchor based on bionics as claimed in claim 3, characterized in that the anchor rod (2) is a steel pipe, the diameter of the steel pipe is 0.75 m-1.20 m, the length of the steel pipe is 15.0 m-17.5 m, the water-jet-compression engine is arranged at the anchor rod position at the upper part 1/3-1/2, and the balance weight is added at the lower part 1/2-2/3 by taking concrete or broken stone as a filler.
6. The new dynamic fish-thunder anchor based on bionics of claim 1, 2 or 5, wherein the negative poisson's ratio material is a metallic material with a concave polygonal structure, a rotating polygonal structure, a chiral structure, a perforated plate structure, an interlocking polygonal structure, a node-fiber structure or a fold structure, an FCC crystal, a multiple poisson's ratio material, polyurethane foam or polytetrafluoroethylene composite negative poisson's ratio material, and the negative poisson's ratio material may be one or a combination of several of them, and has a thickness of 0.02m to 0.03 m.
7. The bionic-based novel dynamic Rayleigh anchor as claimed in claim 3, wherein the negative Poisson ratio material is a metallic material, an FCC crystal, a multi-Poisson ratio material, polyurethane foam or a polytetrafluoroethylene composite negative Poisson ratio material, which is in a concave polygonal structure, a rotary polygonal structure, a chiral structure, a perforated plate structure, an interlocking polygonal structure, a node-fiber structure or a corrugated structure, and has a thickness of 0.02m to 0.03 m.
8. The bionic-based novel dynamic Rayleigh anchor as claimed in claim 4, wherein the negative Poisson ratio material is a metallic material, an FCC crystal, a multi-Poisson ratio material, polyurethane foam or a polytetrafluoroethylene composite negative Poisson ratio material, which is in a concave polygonal structure, a rotary polygonal structure, a chiral structure, a perforated plate structure, an interlocking polygonal structure, a node-fiber structure or a corrugated structure, and has a thickness of 0.02m to 0.03 m.
9. The method for installing the novel bionic-based dynamic type Torpedo anchor according to claims 1-8, is characterized by comprising the following steps:
the first step is as follows: before the anchor body is lowered, an anchor rod metal solid material bin (9) and a rotary anchor point (3) are arranged at the designed position of the anchor rod (2);
the second step is that: hoisting the anchor body to the designed falling height;
the third step: after the anchor rod (2) and the anchor tip water inlet plug (20) are removed, the anchor rod and the anchor tip water inlet plug are released within 15-30 seconds, seawater enters a water sump under the action of water pressure while the anchor body falls freely, and then enters an anchor rod metal solid material bin (9) through a water inlet to react with active metal fuel;
the fourth step: the water reacts with the active metal fuel to generate high-pressure gas mixed with hydrogen and water vapor, the pressure in the anchor rod metal solid material bin (9) is larger than the external water pressure, the sealing cover at the water inlet is tightly pressed and closed, so that the seawater can not continuously flow into the anchor rod metal solid material bin (9), and meanwhile, the high-pressure gas rushes out the sealing cover at the air outlet to discharge gas;
the fifth step: after the high-pressure gas is discharged, the pressure of the anchor rod metal solid material bin (9) is reduced, the sealing cover of the exhaust port is closed under the action of the seawater pressure, the external seawater is continuously supplied to the metal solid material bin from the water inlet, the high-pressure gas is generated again, and the anchor body is pushed to advance and the rotating anchor tip (3) is rotated in a circulating reciprocating manner;
and a sixth step: when the working anchor chain is tensioned, the negative Poisson ratio materials at the anchor rod (2) and the anchor wing (1) expand under tension to increase the stressed area; the concave structure increases the interface friction force, thereby improving the pulling-resistant bearing capacity;
wherein the mounting steps of the third step and the fourth step may be performed at an initial stage of the release of the anchor body, or during a free fall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010960167.8A CN112141268B (en) | 2020-09-14 | 2020-09-14 | Power type fish-thunder anchor based on bionics and installation method thereof |
Applications Claiming Priority (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113879052A (en) * | 2021-10-22 | 2022-01-04 | 哈尔滨工程大学 | Cross-medium water stamping power system and aircraft |
| CN114228907A (en) * | 2021-12-28 | 2022-03-25 | 中国石油大学(华东) | Vacuum fish-and-thunder anchor capable of solidifying soil body and installation method thereof |
| US11771183B2 (en) | 2021-12-16 | 2023-10-03 | Joon Bu Park | Negative Poisson's ratio materials for fasteners |
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| CN113879052A (en) * | 2021-10-22 | 2022-01-04 | 哈尔滨工程大学 | Cross-medium water stamping power system and aircraft |
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| CN114228907A (en) * | 2021-12-28 | 2022-03-25 | 中国石油大学(华东) | Vacuum fish-and-thunder anchor capable of solidifying soil body and installation method thereof |
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| CN112141268B (en) | 2021-09-28 |
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