CN205277330U - Afterbody blade is along with flowing wobbling riser vortex induced vibration suppression device - Google Patents
Afterbody blade is along with flowing wobbling riser vortex induced vibration suppression device Download PDFInfo
- Publication number
- CN205277330U CN205277330U CN201620005636.XU CN201620005636U CN205277330U CN 205277330 U CN205277330 U CN 205277330U CN 201620005636 U CN201620005636 U CN 201620005636U CN 205277330 U CN205277330 U CN 205277330U
- Authority
- CN
- China
- Prior art keywords
- afterbody
- mounting block
- jack
- support bar
- induced vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model relates to an afterbody blade is along with flowing wobbling riser vortex induced vibration suppression device comprises upper and lower two fixed units and three water conservancy diversion piece. Fixed unit is formed through the bolt butt joint by anterior mounting and afterbody mounting, and the afterbody mounting encircles the wall outward establishes three cuboid support bars, and open on its top has the jack. The both ends bolt of three wavy water conservancy diversion pieces of S type inserts respectively in the jack of upper and lower fixed unit cuboid support bar for three water conservancy diversion piece vertical bit are between upper and lower two fixed units. Because water conservancy diversion piece bolt height is less than the jack degree of depth, the bolt external diameter is less than the jack aperture for there is the free activity space in the water conservancy diversion piece, and the water conservancy diversion sector -meeting is disturb the formation of riser afterbody swirl, thereby is reached the effect that vortex induced vibration restraines along with flowing the swing under the ocean current strikes.
Description
Technical field
The utility model belongs to marine riser facility laying technology field, is specifically related to the riser vortex induced vibration suppression device that a kind of afterbody blade swings with stream.
Background technology
Along with the continuous propelling of China economy in-depth reform, greatly developing marine economy imperative, Marine oil and gas resource is mainly had an effect a little as marine economy, is paid much attention to. The principal passage that marine riser is carried as marine oil and gas is that marine oil and gas exploits indispensable important parts. But standpipe is in ocean current environment complicated and changeable for a long time, producing the vortex periodically alternately released during ocean current pile warp standpipe, that causes alternation rises resistance, thus causes the vibration of standpipe. When standpipe vibrational frequency and vortex release frequency close time can cause resonance, thus accelerate the fatigue damage of standpipe. Therefore, the suppression of riser vortex excited vibration is the key that can relation exploit safely marine oil and gas.
Existing riser vortex induced vibration device comprises initiatively and passive two kinds, active suppression device complex structure and need to consume external energy, and passive suppression device often maintains static, limited efficiency. Both are organically combined, utilizes inexhaustible ocean current energy will to be the favourable behave improving inhibition.
Summary of the invention
Problem to be solved in the utility model is the deficiency existed for existing riser vortex induced vibration suppression device, it is provided that a kind of riser vortex induced vibration suppression device swung with stream without energy consumption, the simple afterbody blade of structure.
In order to realize above-mentioned purpose, the utility model adopts following technical scheme:
The riser vortex induced vibration suppression device that afterbody blade swings with stream, is made up of upper and lower two fixed cells and three inducers. Fixed cell is made up of anterior mounting block and afterbody mounting block, anterior mounting block is half annular component, afterbody mounting block is half annular component that an outer arch wall is connected with three root length cube support bars, and its three root lengths cube support bar is evenly arranged in the outer arch wall of afterbody mounting block. Anterior mounting block and afterbody mounting block are set in standing tube outer wall from both sides, fixing by bolt docking, thus form a fixed cell. Upper and lower two fixed cells are installed respectively in the position of the inducer height in standing tube outer wall interval, and have downward circular socket holes on the rectangular parallelepiped support bar top of upper fixed cell afterbody mounting block, have circular socket holes upwards on the rectangular parallelepiped support bar top of lower fixed cell afterbody mounting block. Inducer is the little amplitude corrugated blank of S type, and its cross section is the sinusoidal wave shape of one-period. At inducer two ends, the position of corresponding sinusoidal wave starting point is processed with cylinder shape latch, the two ends latch of three inducers inserts in the jack of upper and lower fixed cell three root length cube support bar respectively so that three inducers are vertically between upper and lower two fixed cells.
The length of described rectangular parallelepiped support bar is 0.2��0.3 times of standpipe diameter D; The wave height of described inducer cross section sine wave is 0.05��0.10D, and wavelength is 1.0��1.5D; Described latch height is less than the jack degree of depth, and latch external diameter is less than jack aperture.
The utility model is owing to adopting above technical scheme, and it has the following advantages:
1, the latch height of the utility model inducer is less than the jack degree of depth, latch external diameter is less than jack aperture so that inducer exists freely movable space, can swing with stream under the impact of ocean current, thus upset the formation of standpipe afterbody vortex, reach the effect that vortex-induced vibration suppresses;
2, the utility model device one-piece construction is simple, and cost is low, easy for installation.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic diagram
Fig. 2 is the utility model afterbody anchor structure schematic diagram
Fig. 3 is the utility model flow deflector structure schematic diagram
Fig. 4 is the utility model cross section water conservancy diversion schematic diagram
Wherein: 1, standpipe; 2, anterior mounting block; 3, afterbody mounting block; 4, inducer; 5, rectangular parallelepiped support bar; 6, jack; 7, latch.
Embodiment
Below in conjunction with accompanying drawing, concrete enforcement of the present utility model is further described:
As shown in Figure 1, the riser vortex induced vibration suppression device that a kind of afterbody blade swings with stream, is made up of upper and lower two fixed cells and three inducers 4. Fixed cell is made up of anterior mounting block 2 and afterbody mounting block 3, anterior mounting block 2 is half annular component, as shown in Figure 2, afterbody mounting block 3 is half annular component that an outer arch wall is connected with three root length cube support bars 5, and its three root lengths cube support bar 5 is evenly arranged in the outer arch wall of afterbody mounting block 3. Anterior mounting block 2 and afterbody mounting block 3 are set in standpipe 1 outer wall from both sides, fixing by bolt docking, thus form a fixed cell. In the position of inducer 4 height in standpipe 1 outer wall interval, upper and lower two fixed cells are installed respectively, and have downward circular socket holes 6 on rectangular parallelepiped support bar 5 top of upper fixed cell afterbody mounting block 3, have circular socket holes 6 upwards on rectangular parallelepiped support bar 5 top of lower fixed cell afterbody mounting block 3. As shown in Figure 3, inducer 4 is the little amplitude corrugated blank of S type, and its cross section is the sinusoidal wave shape of one-period. At inducer 4 two ends, the position of corresponding sinusoidal wave starting point is processed with cylinder shape latch 7, the two ends latch 7 of three inducers 4 inserts in the jack 6 of upper and lower fixed cell three root length cube support bar 5 respectively so that three inducers 4 are vertical between upper and lower two fixed cells.
The length of described rectangular parallelepiped support bar 5 is 0.2��0.3 times of standpipe 1 diameter D; The wave height of described inducer 4 cross section sine wave is 0.05��0.10D, and wavelength is 1.0��1.5D; Described latch 7 is highly less than jack 6 degree of depth, and latch 7 external diameter is less than jack 6 aperture.
Embodiment:
When this device is installed, first lower fixed cell is installed, front portion mounting block 2 and afterbody mounting block 3 is set in standpipe 1 outer wall from both sides, is bolted fixing, and make circular socket holes 6 opening upwards on afterbody mounting block 3 rectangular parallelepiped support bar 5 top. One end latch 7 of three inducers 4 is inserted respectively in the jack 6 of lower fixed cell three root length cube support bar 5. Then, install fixed cell, equally front portion mounting block 2 and afterbody mounting block 3 are set in from both sides standpipe 1 outer wall, it is bolted fixing, Open Side Down to make the circular socket holes 6 on afterbody mounting block 3 rectangular parallelepiped support bar 5 top, and inserted by the other end latch 7 of three inducers 4 in the jack 6 of upper fixed cell three root length cube support bar 5 correspondence, so that three inducers 4 are vertical between upper and lower two fixed cells.
After installation, this device is placed in seawater, owing to the height of inducer 4 latch 7 is less than the degree of depth of jack 6, the external diameter of latch 7 is less than the aperture of jack 6, making inducer 4 there is freely movable space, as shown in Figure 4, under the impact of ocean current, the wavy inducer 4 of S type can swing with stream, thus upset the formation of standpipe 1 afterbody vortex, reach the effect that vortex-induced vibration suppresses.
Claims (3)
1. the riser vortex induced vibration suppression device that an afterbody blade swings with stream, it is characterised in that: it is made up of upper and lower two fixed cells and three inducers (4); Fixed cell is made up of anterior mounting block (2) and afterbody mounting block (3), anterior mounting block (2) is half annular component, afterbody mounting block (3) is half annular component that an outer arch wall is connected with three root lengths cube support bar (5), and its three root length cube support bar (5) is evenly arranged in the outer arch wall of afterbody mounting block (3); Anterior mounting block (2) and afterbody mounting block (3) are set in standpipe (1) outer wall from both sides, fixing by bolt docking, thus form a fixed cell; In the position of inducer (4) height in standpipe (1) outer wall interval, upper and lower two fixed cells are installed respectively, and have downward circular socket holes (6) on rectangular parallelepiped support bar (5) top of upper fixed cell afterbody mounting block (3), have circular socket holes upwards (6) on rectangular parallelepiped support bar (5) top of lower fixed cell afterbody mounting block (3); Inducer (4) is the little amplitude corrugated blank of S type, and its cross section is the sinusoidal wave shape of one-period; At inducer (4) two ends, the position of corresponding sinusoidal wave starting point is processed with cylinder shape latch (7), the two ends latch (7) of three inducers (4) inserts in the jack (6) of upper and lower fixed cell three root length cube support bar (5) respectively so that three inducers (4) are vertical between upper and lower two fixed cells.
2. the riser vortex induced vibration suppression device that a kind of afterbody blade as claimed in claim 1 swings with stream, it is characterised in that: the length of rectangular parallelepiped support bar (5) is 0.2��0.3 times of standpipe (1) diameter D; The wave height of inducer (4) cross section sine wave is 0.05��0.10D, and wavelength is 1.0��1.5D.
3. the riser vortex induced vibration suppression device that a kind of afterbody blade as claimed in claim 1 swings with stream, it is characterized in that: latch (7) is highly less than jack (6) degree of depth, latch (7) external diameter is less than jack (6) aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620005636.XU CN205277330U (en) | 2016-01-04 | 2016-01-04 | Afterbody blade is along with flowing wobbling riser vortex induced vibration suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620005636.XU CN205277330U (en) | 2016-01-04 | 2016-01-04 | Afterbody blade is along with flowing wobbling riser vortex induced vibration suppression device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205277330U true CN205277330U (en) | 2016-06-01 |
Family
ID=56061913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620005636.XU Expired - Fee Related CN205277330U (en) | 2016-01-04 | 2016-01-04 | Afterbody blade is along with flowing wobbling riser vortex induced vibration suppression device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205277330U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936335A (en) * | 2017-05-08 | 2017-07-07 | 中国石油大学(华东) | A kind of rotary type vortex-induced vibration of marine riser collection of energy and restraining device based on dielectric elastomer |
| CN107035623A (en) * | 2017-04-26 | 2017-08-11 | 中国二十二冶集团有限公司 | Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process |
| KR20180046805A (en) * | 2016-10-28 | 2018-05-09 | 대우조선해양 주식회사 | Apparatus for reducing vortex induced vibration |
| CN109737012A (en) * | 2019-02-22 | 2019-05-10 | 上海电气风电集团有限公司 | Flow spoiler, blower fan tower barrel and the wind-driven generator including it |
| CN111306148A (en) * | 2020-03-09 | 2020-06-19 | 中国海洋石油集团有限公司 | Marine riser vortex-induced vibration suppression device |
| CN112878175A (en) * | 2021-01-19 | 2021-06-01 | 苏交科集团股份有限公司 | Pier water flow resistance reducing device |
-
2016
- 2016-01-04 CN CN201620005636.XU patent/CN205277330U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180046805A (en) * | 2016-10-28 | 2018-05-09 | 대우조선해양 주식회사 | Apparatus for reducing vortex induced vibration |
| KR102616097B1 (en) | 2016-10-28 | 2023-12-21 | 한화오션 주식회사 | Apparatus for reducing vortex induced vibration |
| CN107035623A (en) * | 2017-04-26 | 2017-08-11 | 中国二十二冶集团有限公司 | Vortex-induced vibration inhibiting method in superelevation blower fan tower barrel hoisting process |
| CN106936335A (en) * | 2017-05-08 | 2017-07-07 | 中国石油大学(华东) | A kind of rotary type vortex-induced vibration of marine riser collection of energy and restraining device based on dielectric elastomer |
| CN109737012A (en) * | 2019-02-22 | 2019-05-10 | 上海电气风电集团有限公司 | Flow spoiler, blower fan tower barrel and the wind-driven generator including it |
| CN111306148A (en) * | 2020-03-09 | 2020-06-19 | 中国海洋石油集团有限公司 | Marine riser vortex-induced vibration suppression device |
| CN111306148B (en) * | 2020-03-09 | 2022-02-11 | 中国海洋石油集团有限公司 | Marine riser vortex-induced vibration suppression device |
| CN112878175A (en) * | 2021-01-19 | 2021-06-01 | 苏交科集团股份有限公司 | Pier water flow resistance reducing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205277330U (en) | Afterbody blade is along with flowing wobbling riser vortex induced vibration suppression device | |
| CN202040026U (en) | Comprehensive utilization system for sea energy | |
| CN104818727A (en) | Single pile and gravity combined offshore wind power foundation | |
| CN204040050U (en) | Mixed type offshore wind power foundation structure | |
| CN104264704A (en) | Combination type hexagon buoyancy tank foundation for seaborne anemometer tower | |
| CN204645074U (en) | A kind of single pile-gravity associating offshore wind power foundation | |
| CN109853609A (en) | A kind of offshore wind farm combination foundation | |
| CN102720170B (en) | Special stepped energy dissipater | |
| CN204676584U (en) | A kind of high stake truss-like offshore wind turbine foundation structure | |
| CN209603168U (en) | A kind of offshore wind farm combination foundation | |
| CN109469155B (en) | Water inlet structure vortex control device based on equal-difference reducing arc line | |
| CN205117623U (en) | Send out compound bucket foundation of marine fan that ferroelectric phase combines with ocean current | |
| CN202543954U (en) | Multiangular frame foundation for offshore wind power generator | |
| CN201531459U (en) | Elliptical stream guidance pier of large-scale vertical pump | |
| CN205894097U (en) | Novel add wing stake | |
| CN102704447B (en) | V-shaped step energy dissipater with transition section | |
| CN201723502U (en) | Submersible sewage pump coupling installation device | |
| CN105971004A (en) | Offshore support foundation and fan system | |
| CN202370766U (en) | Universal wind power generator set base | |
| CN205224074U (en) | Power generating equipment on water and installation basis thereof | |
| CN205503341U (en) | Current power generation gathers a class cover with adjustable | |
| CN212670628U (en) | Single-pile foundation of offshore wind turbine | |
| CN204239134U (en) | A kind of new-type pipe type power generation device | |
| CN205077474U (en) | Structure is alleviated to platform elongated structure's vortex induced vibration | |
| CN203238655U (en) | Offshore wind power single pile foundation-based tidal current energy power generation foundation structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20170104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |