阅读说明：本技术 一种抗冲击振动的海底管线保护装置 (Shock-resistant and vibration-resistant submarine pipeline protection device ) 是由 高健 李璇 董洪仓 艾万政 于 2020-07-20 设计创作，主要内容包括：本发明涉及一种抗冲击振动的海底管线保护装置,包括管基、配重层、减振环和内涂层,所述配重层中钢砼件包括上钢砼和两个下钢砼,上钢砼与下钢砼连接处均为凸块结构,且上钢砼的凸块设置在下钢砼凸块的下方,所述减振环内设有外圈与内圈,所述外圈内设有弹簧,所述内圈靠近外圈的一侧安装有第一阻尼件,内圈靠近管基的一侧安装有第二阻尼件,第一阻尼件与第二阻尼件之间设有滚子。本发明通过设置的钢砼件与减振环来抵抗外界的冲击载荷与振动载荷,可以有效的避免因海床侵蚀、潮流、涡流振荡和船锚等外界不良因素对海底管线带来的不利影响,保证海底管线正常工作的良好条件。(The invention relates to an anti-impact-vibration submarine pipeline protection device which comprises a pipe base, a balance weight layer, a vibration attenuation ring and an inner coating, wherein a steel concrete piece in the balance weight layer comprises an upper steel concrete and two lower steel concretes, the joint of the upper steel concrete and the lower steel concrete is of a bump structure, a bump of the upper steel concrete is arranged below a bump of the lower steel concrete, an outer ring and an inner ring are arranged in the vibration attenuation ring, a spring is arranged in the outer ring, a first damping piece is arranged on one side of the inner ring, which is close to the outer ring, a second damping piece is arranged on one side of the inner ring, which is close to the pipe base, and a roller is arranged between the first damping piece and the second. According to the invention, the external impact load and vibration load are resisted through the steel concrete piece and the vibration damping ring, so that the adverse effect on the submarine pipeline caused by external adverse factors such as seabed erosion, tide, vortex oscillation and ship anchors can be effectively avoided, and the good condition for normal work of the submarine pipeline is ensured.)

1. The utility model provides a submarine pipeline protection device of shock-resistant vibration, includes tube base (1), has counterweight layer (2) of reinforced concrete structure, solid fixed ring around damping ring (3) and fixed connection in damping ring (3) outside tube base (1) undercoating (4), its characterized in that:

the weight layer (2) is arranged on the outer side of the vibration reduction ring (3), the weight layer (2) is composed of a steel concrete piece (210), four sawtooth clamping plates (220), at least two bolt connecting devices (230) and a steel wire mesh (240), wherein the steel concrete piece (210) comprises an upper steel concrete (211) and two lower steel concrete (212), the joint of the upper steel concrete (211) and the lower steel concrete (212) is of a lug structure, the lug of the upper steel concrete (211) is arranged below the lug of the lower steel concrete (212), the sawtooth clamping plates (220) are fixedly arranged in grooves of the lugs of the upper steel concrete (211) and the lower steel concrete (212), and the steel wire mesh (240) is fixedly wound on the outer side of the steel concrete piece (210);

be equipped with outer lane (310) and inner circle (320) in damping ring (3), fixedly connected with spring (311) in outer lane (310), the flexible direction of spring (311) is unanimous and a plurality of spring (311) are along outer lane (310) center equipartition with the radius direction of outer lane (310), leaves compression predeformation volume when spring (311) are installed, first damping piece (321) are installed to one side that inner circle (320) are close to outer lane (310), and second damping piece (323) are installed to one side that inner circle (320) are close to tube base (1), be equipped with roller (322) between first damping piece (321) and second damping piece (323), and the center equipartition along inner circle (320) of a plurality of first damping piece (321), roller (322) and second damping piece (323).

2. The subsea pipeline protection device against shock and vibration of claim, further comprising: go up reinforced concrete (211) and lower reinforced concrete (212) and pass through bolted connection device (230) and be connected, be equipped with bolt (231) in bolted connection device (230), bolt (231) first half spiral connection has lock nut (232), gasket (233) and sealing ring (234) in proper order, runs through the lug of lower reinforced concrete (212) and the lug of last reinforced concrete (211), and the latter half connection structure of bolt (231) is symmetrical with bolt (231) first half, the lock nut (232) and the gasket (233) quantity of bolt (231) first half all can set up to two.

3. The subsea pipeline protection device against shock and vibration of claim, further comprising: and a track of the roller (322) is arranged between the first damping part (321) and the second damping part (323).

4. The subsea pipeline protection device against shock and vibration of claim, further comprising: the surface of the damping ring (3) is coated with an epoxy resin coating.

5. The subsea pipeline protection device against shock and vibration of claim, further comprising: interior coating (4) include anticorrosive coating (410) and heat insulation layer (420), and wherein, anticorrosive coating (410) set up in heat insulation layer (420), and anticorrosive coating (410) inner circle still is equipped with corruption surplus layer (411), the thickness of corruption surplus layer (411) is 4-6mm, rock wool, foam glass and inorganic heat preservation mortar can be adopted in heat insulation layer (420).

Technical Field

The invention relates to the technical field of submarine pipeline protection, in particular to a submarine pipeline protection device resisting impact vibration.

Background

The submarine pipeline is subjected to seabed erosion, tide and vortex oscillation in a submarine environment, the shipping and fishery activity industry in China is more and more vigorous, the shipping area and the fishery operation area are more and more dense, the fishery breeding operation area and the laying area of the submarine pipeline are overlapped in part of the submarine, the fishery ship is high in randomness in offshore operation, frequent in accidental anchoring operation, and various uncertain factors of the external environment act, so that the submarine pipeline is exposed to extremely high risk. In recent decades, China increasingly attaches importance to marine resources, and the strength of developing and utilizing marine resources is increased, wherein the application fields of submarine pipelines in the industry of petroleum and natural gas industry are extremely large, and once the submarine pipelines are damaged and shifted due to impact or vibration of external environment for a long time, failure and instability of the submarine pipelines cause serious pipeline leakage, resource waste and marine environment pollution.

Disclosure of Invention

In order to solve the problems of impact and vibration of the submarine pipeline in the background art, the invention provides the submarine pipeline protection device capable of resisting impact vibration, which can effectively avoid adverse effects on the submarine pipeline caused by external adverse factors such as seabed erosion, tide, vortex oscillation and ship anchors and ensure good conditions for normal work of the submarine pipeline.

The invention provides the following technical scheme: a submarine pipeline protection device resisting shock vibration comprises a pipe base, a weight layer with a steel concrete structure, a vibration damping ring and an inner coating, wherein the vibration damping ring is fixedly wound on the outer side of the pipe base, the inner coating is fixedly connected into the vibration damping ring, the weight layer is installed on the outer side of the vibration damping ring, the weight layer is composed of a steel concrete piece, four sawtooth clamping plates, at least two bolt connecting devices and a steel wire mesh, the steel concrete piece comprises an upper steel concrete and two lower steel concretes, the joint of the upper steel concrete and the lower steel concrete is of a lug structure, a lug of the upper steel concrete is arranged below the lug of the lower steel concrete, the sawtooth clamping plates are fixedly installed in grooves of the upper steel concrete and the lower steel concrete lug, and the steel wire mesh fixing ring is wound on the;

the damping ring is internally provided with an outer ring and an inner ring, a spring is fixedly connected in the outer ring, the expansion direction of the spring is consistent with the radius direction of the outer ring, and the springs are uniformly distributed along the center of the outer ring, the compression predeformation amount is reserved during spring installation, a first damping piece is installed on one side, close to the outer ring, in the inner ring, a second damping piece is installed on one side, close to the pipe base, in the inner ring, a roller is arranged between the first damping piece and the second damping piece, and the first damping piece, the roller and the second damping piece are uniformly distributed along the center of the inner ring.

As a further scheme of the invention: the upper steel concrete and the lower steel concrete are connected through a bolt connecting device, a bolt is arranged in the bolt connecting device, the upper half part of the bolt is sequentially and spirally connected with a lock nut, a gasket and a sealing ring, a convex block penetrating through the lower steel concrete and a convex block penetrating through the upper steel concrete, the lower half part of the bolt is in symmetrical connection with the upper half part of the bolt, and the number of the lock nuts and the gaskets in the upper half part of the bolt can be set to be two.

As a further scheme of the invention: and a roller track is also arranged between the first damping part and the second damping part.

Preferably, the surface of the damping ring is coated with an epoxy resin coating.

Preferably, the undercoating includes anticorrosive coating and heat insulation layer, and wherein, the anticorrosive coating sets up in the heat insulation layer, and the anticorrosive coating inner circle still is equipped with the corruption surplus layer, the thickness on corruption surplus layer is 4-6mm, rock wool, foam glass and inorganic heat preservation mortar can be adopted to the heat insulation layer.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, external impact load and vibration load are resisted by the arranged steel concrete piece and the vibration damping ring, mechanical vibration brought by external environment is converted into rolling friction by the damping piece and the roller in the vibration damping ring, resonance effect caused by fluid of an internal pipeline can be eliminated by the damping piece, adverse effect on a submarine pipeline caused by external adverse factors such as seabed erosion, tide, vortex oscillation and ship anchor can be effectively avoided by reasonable matching of the steel concrete piece and the vibration damping ring, the self weight of the submarine pipeline is increased by the steel concrete structure formed by connecting the upper steel concrete piece and the two lower steel concrete bolts, the buoyancy in the pipeline is overcome, and good working conditions are further provided for the submarine pipeline.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a material reinforced concrete member according to the present invention;

FIG. 3 is a schematic view of a damping ring structure according to the present invention;

FIG. 4 is a schematic view of the structure of the inner coating of the present invention.

The labels in the figure are: 1-a tube base; 2-a counterweight layer; 210-steel concrete pieces; 211-applying steel concrete; 212-lower steel concrete; 220-a serrated splint; 230-bolted connections; 231-bolt 231; 232-locking nut 232; 233-a gasket; 234-sealing ring; 240-steel wire mesh; 3-damping ring 310-outer ring; 311-a spring; 320-inner ring; 321-a first damping member; 322-a roller; 323-a second damping member; 4-internal coating; 410-an anticorrosive layer; 411-etch redundancy layer; 420-insulating layer.

Detailed Description

As shown in fig. 1 to 4, the embodiment provides an anti-impact-vibration submarine pipeline protection device, which includes a pipe foundation 1, a weight layer 2 with a reinforced concrete structure, a vibration-damping ring 3 fixed around the outside of the pipe foundation 1, and an inner coating 4 fixedly connected inside the vibration-damping ring 3, wherein the weight layer 2 is installed on the outside of the vibration-damping ring 3, and the weight layer 2 is composed of a reinforced concrete member 210, four sawtooth splints 220, at least two bolt connecting devices 230, and a steel wire mesh 240, wherein the reinforced concrete member 210 includes an upper reinforced concrete member 211 and two lower reinforced concrete members 212, the connection between the upper reinforced concrete member 211 and the lower reinforced concrete members 212 is a bump structure, the bumps of the upper reinforced concrete member 211 are disposed below the bumps of the lower reinforced concrete members 212, the sawtooth splints 220 are fixedly installed in the grooves of the bumps of the upper reinforced concrete member 211 and the lower reinforced concrete member 212, and the steel wire mesh 240 is fixed;

be equipped with outer lane 310 and inner circle 320 in the damping ring 3, fixedly connected with spring 311 in the outer lane 310, the flexible direction of spring 311 is unanimous with the radial direction of outer lane 310 and a plurality of spring 311 is along outer lane 310 center equipartition, leaves the compression predeformation volume during the spring 311 installation, first damping piece 321 is installed to one side that inner circle 320 is close to outer lane 310, and second damping piece 323 is installed to one side that inner circle 320 is close to tube base 1, is equipped with roller 322 between first damping piece 321 and the second damping piece 323, and a plurality of first damping piece 321, roller 322 and second damping piece 323 are along the center equipartition of inner circle 320.

The upper steel concrete 211 and the lower steel concrete 212 are connected through a bolt connecting device 230, a bolt 231 is arranged in the bolt connecting device 230, the upper half part of the bolt 231 is sequentially and spirally connected with a locking nut 232, a gasket 233 and a sealing ring 234, a convex block penetrating through the lower steel concrete 212 and a convex block of the upper steel concrete 211, the lower half connecting structure of the bolt 231 is symmetrical to the upper half part of the bolt 231, and the number of the locking nuts 232 and the gasket 233 of the upper half part of the bolt 231 can be set to two. A track of the roller 322 is further disposed between the first damping member 321 and the second damping member 323. The surface of the damping ring 3 is coated with an epoxy resin coating.

Interior coating 4 includes anticorrosive coating 410 and heat insulation layer 420, and wherein, anticorrosive coating 410 sets up in heat insulation layer 420, and anticorrosive coating 410 inner circle still is equipped with corrosion surplus layer 411, corrosion surplus layer 411's thickness is 4-6mm, rock wool, foam glass and inorganic heat preservation mortar can be adopted to heat insulation layer 420.

The working principle of the invention is as follows, the uncertain impact factors of the submarine pipeline usually come from the anchor drop of the ship anchor, the ship anchor can generate great impact force, the complex marine environment can also cause the submarine pipeline to generate impact and vibration, thereby the submarine pipeline generates position migration, when the invention works specifically, the outer side of the steel concrete member 210 bears the impact force and vibration of the ship anchor and other fluids, the arranged steel wire mesh 240 disperses the locally concentrated impact force and vibration to the positions of the steel concrete member 210, the steel concrete member 210 transmits the acting force to the vibration damping ring 3 after the first weakening of the steel concrete member 210, the spring 311 in the outer ring 310 of the vibration damping ring 3 converts the acting force into the form of vibration wave to be transmitted to the inner ring 320, and the spring 311 stretches repeatedly to attenuate the acting force further, thereby avoiding the damage of the parts of the inner ring due to stress concentration, the first damping piece 321 in the inner ring 320, The roller 322 and the second damper 323 convert the mechanical vibration wave into rolling friction to eliminate external impact and vibration force.

Inside the submarine pipeline, partial fluid can corrode the pipe base 1, the service life of the pipe base 1 is shortened, the pipe base 1 is effectively protected through the arranged 4-6mm corrosion allowance layer 411, the anti-corrosion layer 410 protects the pipe base 1 from being corroded by the fluid, the heat insulation layer 420 has certain mechanical strength and the capability of preventing invasion of oil and oil base, expansion of gas in the pipe base 1 is avoided, the fluid in the pipeline can enable the pipeline to generate certain vibration, and the filler in the heat insulation layer 420 can also play a part of vibration damping function.

The upper steel concrete 211 and the two lower steel concrete 212 are overlapped, so that the steel concrete piece 210 is more convenient to install, the damage caused by the installation of the balance weight layer 2 when the submarine pipeline is installed is reduced, the number of the locking nuts 232 and the number of the gaskets 233 on the upper half part of the bolt 231 are two because the bump part of the lower steel concrete 212 is above the bump part of the upper steel concrete 211, and the upper steel concrete 211 and the two lower steel concrete 212 are tightly and firmly connected together through the sawtooth splints 220, so that the structure is more stable and reasonable, the dead weight of the submarine pipeline is increased, the buoyancy in the pipeline is overcome, and good working conditions are further provided for the submarine pipeline.

It should be noted that the description of the present invention and the accompanying drawings illustrate preferred embodiments of the present invention, but the present invention may be embodied in many different forms and is not limited to the embodiments described in the present specification, which should not be construed as an additional limitation of the present invention, and the embodiments are provided for thorough understanding of the present disclosure. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.