CN104985556B - Installation tool for helical strakes in marine riser vortex-induced vibration restraining test - Google Patents
Installation tool for helical strakes in marine riser vortex-induced vibration restraining test Download PDFInfo
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- CN104985556B CN104985556B CN201510401293.9A CN201510401293A CN104985556B CN 104985556 B CN104985556 B CN 104985556B CN 201510401293 A CN201510401293 A CN 201510401293A CN 104985556 B CN104985556 B CN 104985556B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an installation tool for helical strakes in a marine riser vortex-induced vibration restraining test. The installation tool comprises helical line marking and locating rings and helical line adhesion locating rings, wherein the helical line marking and locating rings and the helical line adhesion locating rings are each formed by hooping and connecting two half rings. Multiple radial locating lines are distributed circumferentially from the inner edges of the helical line marking and locating rings at equal intervals. The number of the radial locating lines is the same as the number of the helical line marking and locating rings fixed to each thread pitch on a bare pipe in the helical line marking process. Multiple helical strake locating grooves are formed circumferentially in the inner surfaces of the helical line adhesion locating rings at equal intervals. The number of the helical strake locating grooves is the same as that of the helical strakes. The end face of each adhesion locating ring is provided with an adhesion locating ring locating line. By the adoption of the installation tool, the position marking work of the helical lines is simplified, it is conveniently guaranteed that the thread pitch of the helical strakes is accurate, a continuous helical line is located among marking points, and the helical strakes are convenient to install.
Description
Technical field
The present invention relates to a kind of auxiliary mounting tool, suppresses especially with regard to vortex-induced vibration of marine riser is installed in laboratory
The device of spiral strake.
Background technology
As economy is developed rapidly, the raising of productivity, energy resource consumption is increasing, and China is by original oil exporting country
It is changed into importer.Oil becomes the bottleneck of restriction China economic development, and the exploitation of offshore and gas development, particularly deep-sea oil gas is
The key areas of world energy sources exploitation, are also to solve China's energy starved effective way.Marine riser is deepwater field life
Produce an important component part in transport system.Because the depth of water of deep-sea oil gas exploitation is larger, the length of marine riser is easily
Upper km, its kinetic characteristic is sufficiently complex.Marine riser both sides particularly under ocean current effect can occur alternate vortex shedding,
Lure that structure is vibrated into, the vibration of structure can react on flow field again, cause sufficiently complex vortex-induced vibration phenomenon to occur.Whirlpool
Excited vibration can accelerate the fatigue damage of marine riser, even destroy, once standpipe oil gas occurs reveals accident, the economic damage for causing
Becoming estranged environmental pollution will be inestimable.Therefore, for marine riser structure, vortex-induced vibration is that engineering design need to take into full account
A key factor.Marine riser structure vortex-induced vibration how is effectively suppressed to be always hot issue of concern.Mesh
Before, widely used spiral strake suppressor mode, and carried out substantial amounts of Test And Research Work.21st phase in 2005《Journal
of Fluids and Structures》Paper " Experimental investigation of vortex- in magazine
Induced vibration of long marine risers " (elongated vortex-induced vibration of marine riser experimental study) adopt glass
Glass Steel material makes spiral strake and suppresses pipeline model, plus man-hour to take one-shaping technique, directly results in experimentation cost residence
It is high not under.44th phase in 2014《Applied Ocean Research》Paper " Investigation on the in magazine
(spiral is arranged effectiveness of helical strakes in suppressing VIV of flexible riser "
Plate is to vortex induced vibration of slender flexible standpipe inhibition experimental study) suppression pipeline model has been made using polyvinyl chloride material,
Artificially spiral strake is pasted using simple mode, the accuracy of pitch is difficult to ensure that.Due to marine riser appearance in laboratory
The bonding work of surface helix strake is complex, and the pitch accuracy for directly resulting in the pipeline model in practical operation is difficult to ensure that
Or testing expenses are high, or even the authenticity and reliability that experimental study achievement can be affected.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides spiral row during a kind of vortex-induced vibration of marine riser suppresses to test
The installation tool of plate, simplifies the position mark work of helix, is easy to ensure the accurate of spiral strake pitch, and in mark
A continuous helix is oriented between point；It is easy to the installation of spiral strake.
In order to solve above-mentioned technical problem, a kind of vortex-induced vibration of marine riser proposed by the present invention suppresses spiral row in test
The installation tool of plate, including spiral wire tag locating ring and helix cemented in place ring；The spiral wire tag locating ring and spiral shell
External diameter of the internal diameter of spin line cemented in place ring more than naked pipe；The spiral wire tag locating ring includes mark locating ring the first ring lobe
After marking locating ring the second ring lobe, mark locating ring the first ring lobe and the mutual obvolvent of mark locating ring the second ring lobe to connect
For a mark positioning annulus, it is connected by between mark locating ring the first ring lobe and mark locating ring the second ring lobe
Be hinged, it is described mark locating ring the first ring lobe and mark locating ring the second ring lobe in hinged place outer rim on be provided be easy to turn
Dynamic curved surface, another place between mark locating ring the first ring lobe and mark locating ring the second ring lobe is connected by pin company
Connect；The a plurality of radial positioning line of circumferentially decile arrangement, the radial positioning line are provided with from the inner edge of the mark positioning annulus
Radical it is identical with the number of the spiral wire tag locating ring fixed in every section of pitch on naked pipe during spiral wire tag；It is described
Helix cemented in place ring includes cemented in place ring the first ring lobe and cemented in place ring the second ring lobe, the cemented in place ring first
It is a cemented in place annulus, the first ring of cemented in place ring lobe after ring lobe and the mutual obvolvent connection of cemented in place ring the second ring lobe
It is connected by being hinged at and cemented in place ring the second ring lobe between one, cemented in place ring the first ring lobe and cemented in place ring
Second ring lobe is easy to the curved surface of rotation being provided with the outer rim of hinged place；Cemented in place ring the first ring lobe and bonding are fixed
Another place between ring the second ring lobe of position is connected by pin connection；Circumferentially etc. set up separately on the inner surface of the cemented in place annulus
There are multiple spiral strake locating slots, the profile of the spiral strake locating slot cross section and the profile phase in spiral strake cross section
Together, the spiral strake locating slot number is identical with the radical of spiral strake, and the end face of the cemented in place annulus is provided with one
Cemented in place ring position line.
Compared with prior art, the invention has the beneficial effects as follows：
This installation tool registration, can ensure well spiral strake pitch it is accurate with it is consistent；Spiral shell can once be completed
Rotation strake bonding, without the need for interruption, it is ensured that the continuity of spiral strake；Can be very good in use to help user's bonding
Spiral strake, improves operating efficiency；This tool construction is simple, and economical environment-protective is cheap, is capable of achieving mechanization production, and
It is reusable after dismounting.
Description of the drawings
Fig. 1 is spiral wire tag locating ring closed state schematic diagram in inventive article；
Fig. 2 is the locating ring open mode schematic diagram of spiral wire tag shown in Fig. 1；
Fig. 3 is helix cemented in place ring seal view in inventive article；
Fig. 4 is the ring open mode schematic diagram of helix cemented in place shown in Fig. 3；
Fig. 5 is the ring interface fixation fork schematic diagram of helix cemented in place shown in Fig. 3；
Fig. 6 is the top view of interface fixation fork shown in Fig. 5.
In figure：1st, 1 '-through hole, 2- mark locating ring the first ring lobes, 3,11- bolt connection parts, 4,7,12- connection sheets, 5-
Mark locating ring the second ring lobe, 6- mark locating ring position lines, 8- through holes, 8 '-straight pin, 9- cemented in place ring position lines, 10-
Cemented in place ring the first ring lobe, 13- spiral strake locating slots, 14- cemented in place ring the second ring lobe, 15- interface fixation forks.
Specific embodiment
Below in conjunction with the accompanying drawings technical solution of the present invention is described in further detail with specific embodiment, described is concrete
Embodiment is only explained to the present invention, not to limit the present invention.
A kind of vortex-induced vibration of marine riser of the present invention suppresses the installation tool of spiral strake in test, including spiral wire tag
Locating ring and helix cemented in place ring；The internal diameter of the spiral wire tag locating ring and helix cemented in place ring is slightly larger than naked
The external diameter of pipe, for example, the external diameter of naked pipe is for the internal diameter of 16mm, the spiral wire tag locating ring and helix cemented in place ring
16.5～17mm.
As depicted in figs. 1 and 2, the spiral wire tag locating ring includes mark the first ring of locating ring lobe 2 and mark positioning
It is a mark after the second ring of ring lobe 5, mark the first ring of locating ring lobe 2 and the mutual obvolvent connection of mark the second ring of locating ring lobe 5
Note positioning annulus, between the first ring of mark locating ring lobe 2 and mark the second ring of locating ring lobe 5 hinge is connected by
Connect, the structure that this is hinged includes being separately positioned on connected the first ring of mark locating ring lobe 2 and mark the second ring of locating ring lobe 5
Double-edged two panels connection sheet 4, at mark the first ring of locating ring lobe 2 and the connected position of mark the second ring of locating ring lobe 5
A through hole is respectively provided with, connection sheet 4 is provided with corresponding through hole, is finally bolted part 3 and two panels connection sheet 4 and will mark positioning
The first ring of ring lobe 2 and mark the second ring of locating ring lobe 5 are hinged.Mark the first ring of locating ring lobe 2 and mark locating ring second
Ring lobe 5 is easy to the curved surface of rotation, the first ring of mark locating ring lobe 2 and mark positioning being provided with the outer rim of hinged place
Another place between the second ring of ring lobe 5 is connected by pin connection, and the structure of the pin connection includes two panels connection sheet 7, in connection sheet 7
It is provided with the position of the through hole 1 arranged with the place of being connected on mark the first ring of locating ring lobe 2 and mark the second ring of locating ring lobe 5
Corresponding through hole 1 ', is connected connection sheet 7 and mark the second ring of locating ring lobe 5 with a bolt connection part, will even with a straight pin
Contact pin 7 and mark the first ring of locating ring lobe 2 are fixed.Circumferentially decile arrangement is provided with from the inner edge of the mark positioning annulus
A plurality of radial positioning line 6, the radical of the radial positioning line and institute fixed in every section of pitch on naked pipe during spiral wire tag
The number for stating spiral wire tag locating ring is identical, and Fig. 1 shows that the inner edge of mark positioning annulus is provided with 5 radial positioning lines 6.
As shown in Figure 3 and Figure 4, the helix cemented in place ring includes the first ring of cemented in place ring lobe 10 and cemented in place
It is one after the second ring of ring lobe 14, the first ring of cemented in place ring lobe 10 and the mutual obvolvent of the second ring of cemented in place ring lobe 14 connection
Cemented in place annulus, is connected by between the first ring of cemented in place ring lobe 10 and the second ring of cemented in place ring lobe 14
It is hinged, the articulated structure for being adopted includes being separately positioned on connected the first ring of cemented in place ring lobe 10 and cemented in place ring the
The double-edged two panels connection sheet 12 of two ring lobe 14, in the first ring of cemented in place ring lobe 10 and the second ring of cemented in place ring lobe 14
Connected position is respectively provided with a through hole, and connection sheet 12 is provided with corresponding through hole, is finally bolted part 11 and two panels connection
Piece 12 is hinged the first ring of cemented in place ring lobe 10 and the second ring of cemented in place ring lobe 14.The first ring of cemented in place ring lobe 10
With the second ring of cemented in place ring lobe 14 in hinged place outer rim on be provided be easy to rotate curved surface；The cemented in place ring
Another place between one ring lobe 10 and the second ring of cemented in place ring lobe 14 is connected by pin connection, the ring of cemented in place ring first
The pin connection of lobe 10 and the second ring of cemented in place ring lobe 14 is by an interface fixation fork 15 and is separately positioned on the cemented in place ring
Through hole 8 on first ring lobe 10 and the second ring of cemented in place ring lobe 14 is constituted, as shown in Figure 5 and Figure 6, the interface fixation fork 15
Including handle and two straight pins 8 ' for being fixed on the handle back side.On the inner surface of the cemented in place annulus circumferentially etc.
It is arranged with multiple spiral strake locating slots 13, profile and the spiral strake cross section of the cross section of spiral strake locating slot 13
Profile is identical, and the number of spiral strake locating slot 13 is identical with the radical of spiral strake；The end face of the cemented in place annulus
It is provided with a cemented in place ring position line 9.
By taking three spiral strakes of bonding as an example, the description use process of installation tool of the present invention：
Step one, an axial line will be marked on the naked pipe of winding screw strake.
Step 2, use spiral wire tag locating ring as depicted in figs. 1 and 2, with reference to fixed on required pitch and locating ring
The quantity of bit line, marks one by one on naked pipe surface.It is with adjacent radial by taking spiral wire tag locating ring in Fig. 1 as an example
Angle is 72 degree and is one and indexes the mark that does, i.e., a 360 degree spiral shells having in 5 mark points, therefore naked pipe between position line 6
Away from 5 deciles are divided into, a spiral wire tag locating ring is placed on each Along ent, one radially on each spiral wire tag locating ring
Position line is aligned with the axial line marked in step one；Rotation direction according to spiral strake is marked successively on spiral wire tag locating ring
The correspondence position of 5 position lines on naked pipe, so as to complete the multiple mark points on a pitch inner vortex, unloads helix
Mark locating ring；By that analogy, the position mark work of a helix of whole pipe is completed.
Step 3, helix cemented in place ring is opened, as shown in figure 4, helix cemented in place ring is arranged on into step 2
In mark point position at, fixed with interface fixation fork 15 after closure, as shown in Figure 3；By that analogy, it is each on whole pipe
Helix cemented in place ring is installed at mark point.Rotating screw line cemented in place ring, determines each adjacent helix bonding
Cemented in place ring position line 9 on the ring of position is alignd successively with the mark point completed in step 2, so as to complete helix
Positioning.Used in the present embodiment is the helix cemented in place ring with three spiral strake locating slots, as long as there is a spiral shell
Spin line is positioned successfully, and remaining two also just located, and inspection fixes helix cemented in place ring after finishing.
Step 4, the same spiral strake locating slot sequentially passed through every spiral strake on each cemented in place ring.Enter
The work bonding with naked pipe of row spiral strake；After bonding is finished, the handle for holding interface fixation fork 15 extracts straight pin 8 ', removes
Helix cemented in place ring.
Although above in conjunction with accompanying drawing, invention has been described, the invention is not limited in above-mentioned being embodied as
Mode, above-mentioned specific embodiment is only schematic, rather than restricted, and one of ordinary skill in the art is at this
Under the enlightenment of invention, without deviating from the spirit of the invention, many variations can also be made, these belong to the present invention's
Within protection.
Claims (3)
1. a kind of vortex-induced vibration of marine riser suppresses the installation tool of spiral strake in test, it is characterised in that including helix
Mark locating ring and helix cemented in place ring；The internal diameter of the spiral wire tag locating ring and helix cemented in place ring is more than
The external diameter of naked pipe；
The spiral wire tag locating ring includes mark locating ring the first ring lobe (2) and mark locating ring the second ring lobe (5), described
It is a mark positioning annulus, institute after the mutually obvolvent connection of mark locating ring the first ring lobe (2) and mark locating ring the second ring lobe (5)
State and be connected by being hinged between mark locating ring the first ring lobe (2) and mark locating ring the second ring lobe (5) one, the mark
Locating ring the first ring lobe (2) and mark locating ring the second ring lobe (5) in hinged place outer rim on be provided be easy to rotate song
Face, another place between first ring of mark locating ring lobe (2) and mark locating ring the second ring lobe (5) is connected by pin company
Connect；The a plurality of radial positioning line (6) of circumferentially decile arrangement, the radial positioning are provided with from the inner edge of the mark positioning annulus
The radical of line is identical with the number of the spiral wire tag locating ring fixed in every section of pitch on naked pipe during spiral wire tag；
The helix cemented in place ring includes cemented in place ring the first ring lobe (10) and cemented in place ring the second ring lobe (14), institute
State after cemented in place ring the first ring lobe (10) and cemented in place ring the second ring lobe (14) mutually obvolvent connection as cemented in place circle
Ring, is connected by being hinged between first ring of cemented in place ring lobe (10) and cemented in place ring the second ring lobe (14),
First ring of cemented in place ring lobe (10) and cemented in place ring the second ring lobe (14) are being provided with just in the outer rim of hinged place
In the curved surface for rotating；Another place between first ring of cemented in place ring lobe (10) and cemented in place ring the second ring lobe (14) connects
Connect and adopt pin connection；Circumferentially etc. multiple spiral strake locating slots (13) are arranged with the inner surface of the cemented in place annulus,
The profile of spiral strake locating slot (13) cross section is identical with the profile in spiral strake cross section, the spiral strake positioning
Groove (13) number is identical with the radical of spiral strake, and the end face of the cemented in place annulus is provided with a cemented in place ring position line
(9)。
2. according to claim 1 vortex-induced vibration of marine riser suppresses the installation tool of spiral strake in test, its feature to exist
In the pin connection of first ring of cemented in place ring lobe (10) and cemented in place ring the second ring lobe (14) is by an interface fixation fork
(15) pin-and-hole (8) and on being separately positioned on first ring of cemented in place ring lobe (10) and cemented in place ring the second ring lobe (14)
Constitute, the interface fixation fork (15) includes handle and two straight pins for being fixed on the handle back side.
3. according to claim 1 vortex-induced vibration of marine riser suppresses the installation tool of spiral strake in test, its feature to exist
In the articulated structure and the bonding between mark locating ring the first ring lobe (2) and mark locating ring the second ring lobe (5) is fixed
Articulated structure between position ring the first ring lobe (10) and cemented in place ring the second ring lobe (14) is identical, and the articulated structure is connected by two panels
Contact pin, the through hole and bolt connection part composition for being connected position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401293.9A CN104985556B (en) | 2015-07-09 | 2015-07-09 | Installation tool for helical strakes in marine riser vortex-induced vibration restraining test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401293.9A CN104985556B (en) | 2015-07-09 | 2015-07-09 | Installation tool for helical strakes in marine riser vortex-induced vibration restraining test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104985556A CN104985556A (en) | 2015-10-21 |
| CN104985556B true CN104985556B (en) | 2017-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510401293.9A Active CN104985556B (en) | 2015-07-09 | 2015-07-09 | Installation tool for helical strakes in marine riser vortex-induced vibration restraining test |
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| Country | Link |
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| CN (1) | CN104985556B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961667A (en) * | 2022-06-30 | 2022-08-30 | 安徽睿浩能源科技有限公司 | Natural gas well head binocular filters formula desander |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2458110A (en) * | 2008-03-03 | 2009-09-09 | Trelleborg Crp Ltd | Mould for forming vortex inducing suppression features on an elongate member |
| US8443896B2 (en) * | 2009-06-04 | 2013-05-21 | Diamond Offshore Drilling, Inc. | Riser floatation with anti-vibration strakes |
| CN202000925U (en) * | 2011-01-12 | 2011-10-05 | 中国海洋石油总公司 | Vortex-induced vibration abatement device for helical strake |
| US8511245B2 (en) * | 2011-05-16 | 2013-08-20 | VIV Solutions LLC | Helical strake systems |
| CN202144099U (en) * | 2011-06-10 | 2012-02-15 | 中国海洋石油总公司 | Forming mould system of spiral strake type vortex induced vibration restraining device |
| CN102226379B (en) * | 2011-06-20 | 2013-10-09 | 河北工程大学 | Sleeve for marine riser |
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| Publication number | Publication date |
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| CN104985556A (en) | 2015-10-21 |
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Address after: 300350 District, Jinnan District, Tianjin Haihe Education Park, 135 beautiful road, Beiyang campus of Tianjin University Patentee after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University |
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