CN115503882A - Floating type underwater tensioner for fan mooring system - Google Patents
Floating type underwater tensioner for fan mooring system Download PDFInfo
- Publication number
- CN115503882A CN115503882A CN202211155272.XA CN202211155272A CN115503882A CN 115503882 A CN115503882 A CN 115503882A CN 202211155272 A CN202211155272 A CN 202211155272A CN 115503882 A CN115503882 A CN 115503882A
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- CN
- China
- Prior art keywords
- chain
- main body
- tensioner
- body structure
- stopper
- 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.)
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Links
- 238000005260 corrosion Methods 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
- B63B21/08—Clamping devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses an underwater tensioner of a floating type fan mooring system, which comprises a main body structure, wherein one end of the main body structure is provided with a connecting module, the middle part of the main body structure is provided with a chain guide module, one end of the main body structure is provided with a chain stopping module, and the outer side of the middle part of the main body structure is symmetrically provided with sacrificial anodes for corrosion protection; the chain guide module comprises a chain wheel, the chain stopping module comprises a rotatable chain stopper, springs are symmetrically arranged at two ends of the chain stopper, the other ends of the springs are connected with the main body structure, and the connecting module comprises a connecting shackle; the chain is led out from the side of the chain wheel through the opening end of the tensioner, the bottom of the chain stopper and the bottom of the chain wheel. The chain guide device is simple in structure and reasonable in design, optimizes the structure of the chain guide device, is additionally provided with the automatic locking device, effectively improves the installation efficiency, reduces the installation cost, and can achieve the purpose of quick pretension.
Description
Technical Field
The invention relates to the technical field of underwater tensioners, in particular to an underwater tensioner of a floating type fan mooring system.
Background
Mooring chains are important equipment for mooring and positioning of offshore floats, wherein steel chains are indispensable components in mooring systems due to their excellent load-bearing capacity, fatigue resistance and wear resistance. The upper end of the mooring chain is typically connected to the platform by an anchor and a chain stopper for adjusting the length of the mooring chain to a set tension. The traditional mooring system adopts an anchor machine and a chain stopper in the pretensioning process, but has high cost and complex operation and is not suitable for a floating type fan mooring system on the sea. For a floating production platform or a floating type fan, a method for realizing pre-tensioning in a way of matching a crane with a chain stopper is also provided, but the method has higher requirement on a ship, high cost and great difficulty and is not beneficial to large-scale installation operation. Therefore, it is desirable to introduce an underwater tensioner to effect pre-tensioning of the mooring chain. The underwater tensioner is connected with the upper chain at one end and the lower chain at the other end, wherein the upper chain or the lower chain can penetrate through a chain wheel fixed on the frame, and the chain length is adjusted through the chain controller to realize the expected function. The traditional tensioner needs to use an underwater robot to operate a chain stopping module, the operation flow is complex, the period is long, and a place needing improvement is provided. According to the invention, by optimizing the structure of the chain guide device and adding the automatic locking device, the installation efficiency is improved, the installation cost is reduced, and the chain guide device has higher practical value.
Disclosure of Invention
The invention aims to solve the technical problems and provides an underwater tensioner of a floating type fan mooring system.
In order to achieve the technical purpose and achieve the technical requirements, the invention adopts the technical scheme that: float formula fan mooring system underwater tensioner, its characterized in that: the chain guide structure comprises a main body structure, wherein one end of the main body structure is provided with a connecting module, the other end of the main body structure is provided with a hollow structure for a chain to pass through, the middle part of the main body structure is provided with a chain guide module, one end of the main body structure is provided with a chain stopping module, and the outer side of the middle part of the main body structure is symmetrically provided with sacrificial anodes for corrosion protection; the chain guide module comprises a chain wheel, the chain wheel is connected with the main body structure through a pin shaft A and a clamping plate A, the chain stopping module comprises a rotatable chain stopper, the chain stopper is connected with the main body structure through a pin shaft B, springs are symmetrically arranged at two ends of the chain stopper, the other ends of the springs are connected with the main body structure, the connecting module comprises a connecting shackle, and the connecting shackle is connected with the end part of the main body structure through a pin shaft C and a clamping plate C; the chain is led out from the side of the chain wheel through the opening end of the tensioner, the bottom of the chain stopper and the bottom of the chain wheel.
Preferably: the open end of the tensioner is provided with a cross-shaped chain guide hole.
Preferably, the following components: the bottom of the chain stopper is open, and a chain stopper groove is formed in the bottom of the chain stopper.
Preferably: the chain wheel is a four-tooth chain wheel.
Preferably: the three closed sides of the main body structure are open, and the chain wheel and the chain stopper are positioned inside the main body structure.
Preferably, the following components: the bearing capacity of the main structure body of the tensioner is not lower than the breaking load of the chain, and the theoretical fatigue life is not less than 20 years.
Compared with the traditional structure, the invention has the beneficial effects that:
1. the chain guide device is simple in structure and reasonable in design, optimizes the structure of the chain guide device, is additionally provided with the automatic locking device, effectively improves the installation efficiency, reduces the installation cost, can achieve the purpose of quick pre-tensioning, and has higher practical value.
2. The four-tooth chain wheel is used for guiding the chain during tensioning, and the chain can freely rotate in the guide wheel without clamping stagnation during use.
3. A rotatable chain stopper is adopted for stopping after the chain is tensioned, and the automatic locking function is realized through the cooperation of two springs.
4. And a sacrificial anode is arranged in the middle of the main body structure and used for corrosion protection, so that the service life of the product is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the mounting structure of the present invention;
in the figure: 1. the connecting module 11, the connecting shackle 12, the pin shaft C2, the main body structure 3, the chain guide module 31, the chain wheel 32, the pin shaft A4, the chain stopping module 41, the spring 42, the chain stopping device 43, the pin shaft B5, the chain, the sacrificial anode 6, the connecting floating body 7, the tugboat towing 8 and the lower chain link 9.
Detailed Description
The present invention is further described below.
Referring to the drawings, the underwater tensioner of the floating type fan mooring system is characterized in that: the chain tensioning device comprises a main body structure 2, wherein one end of the main body structure 2 is provided with a connecting module 1 for connecting an upper chain link, the other end of the main body structure is provided with a hollow structure for a chain to pass through, the middle part of the main body structure 2 is provided with a chain guiding module 3 for guiding the chain during tensioning, one end of the main body structure 2 is provided with a chain stopping module 4 for stopping the chain after tensioning and realizing an automatic locking function, and the outer side of the middle part of the main body structure 2 is symmetrically provided with sacrificial anodes 6 for corrosion protection; the chain guide module 3 comprises a chain wheel 31, the chain wheel 31 is connected with the main structure 2 through a pin shaft A32 and a clamping plate A, the chain stopping module 4 comprises a rotatable chain stopper 42, the chain stopper 42 is connected with the main structure 2 through a pin shaft B43, springs 41 are symmetrically arranged at two ends of the chain stopper 42, the other ends of the springs 41 are connected with the main structure 2, the connecting module 1 comprises a connecting shackle 11, and the connecting shackle 11 is connected with the end part of the main structure 2 through a pin shaft C12 and a clamping plate C; the chain 5 is led out from the side of the chain wheel 31 through the opening end of the tensioner, the bottom of the chain stopper 42 and the bottom of the chain wheel 31.
In the preferred embodiment, the open end of the tensioner is provided with a cross-shaped chain guide hole.
In the preferred embodiment, the bottom of the chain stopper 42 is open, and the bottom of the chain stopper 42 is provided with a chain stopping groove.
In the preferred embodiment, the sprocket is provided as a four-tooth sprocket.
In the preferred embodiment, the main body structure 2 is closed on three sides and opened on one side, and the chain wheel 31 and the chain stopper 42 are located inside the main body structure 2.
In the preferred embodiment, the main body load capacity of the tensioner structure is not lower than the breaking load of the chain 5, and the theoretical fatigue life is not less than 20 years.
In specific implementation, the upper chain link is connected with the tensioner through the connecting shackle 11, and the tensioner is positioned by using the buoy; after the bottom chain link is installed, the chain is pulled to a position close to the tensioner by the installation ship; finding out the tensioner through a buoy and placing the tensioner on a mounting ship, leading the bottom chain link out of the side of the chain wheel 31 through the opening end of the tensioner, and dragging the chain link onto a tugboat through a steel wire rope; putting the tensioner and the chain 5 into water, towing the steel wire rope by using a tugboat, and pre-tensioning the whole root mooring chain; the chain stopper 42 is connected with the spring 41 and has unidirectional automatic locking capability, and the chain stopper 42 completely bears the tension of the anchor leg after locking.
The above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, but not intended to limit the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (6)
1. Float formula fan mooring system underwater tensioner, its characterized in that: the chain guide device comprises a main body structure (2), wherein one end of the main body structure (2) is provided with a connecting module (1), the other end of the main body structure is provided with a hollow structure for a chain to pass through, the middle part of the main body structure (2) is provided with a chain guide module (3), one end of the main body structure (2) is provided with a chain stopping module (4), and the outer side of the middle part of the main body structure (2) is symmetrically provided with sacrificial anodes (6) for corrosion protection; the chain guide module (3) comprises a chain wheel (31), the chain wheel (31) is connected with the main structure (2) through a pin shaft A (32) and a clamping plate A, the chain stopping module (4) comprises a chain stopper (42), the chain stopper (42) is connected with the main structure (2) through a pin shaft B (43), springs (41) are symmetrically arranged at two ends of the chain stopper (42), the other ends of the springs (41) are connected with the main structure (2), the connecting module (1) comprises a connecting shackle (11), and the connecting shackle (11) is connected with the end part of the main structure (2) through a pin shaft C (12) and a clamping plate C; the chain (5) is led out from the side of the chain wheel (31) through the opening end of the tensioner, the bottom of the chain stopper (42) and the bottom of the chain wheel (31).
2. The floating fan mooring system subsea tensioner recited in claim 1, wherein: the open end of the tensioner is provided with a cross-shaped chain guide hole.
3. A floating wind turbine mooring system underwater tensioner as claimed in claim 1, wherein: the bottom of the chain stopper (42) is open, and a chain stopping groove is formed in the bottom of the chain stopper (42).
4. A floating wind turbine mooring system underwater tensioner as claimed in claim 1, wherein: the chain wheel is a four-tooth chain wheel.
5. A floating wind turbine mooring system underwater tensioner as claimed in claim 1, wherein: the three closed surfaces of the main body structure (2) are open, and the chain wheel (31) and the chain stopper (42) are positioned inside the main body structure (2).
6. A floating wind turbine mooring system underwater tensioner as claimed in claim 1, wherein: the bearing capacity of the main body of the tensioner structure is not lower than the breaking load of the chain (5), and the theoretical fatigue life is not less than 20 years.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211155272.XA CN115503882A (en) | 2022-09-22 | 2022-09-22 | Floating type underwater tensioner for fan mooring system |
| CN202311157218.3A CN117246450A (en) | 2022-09-22 | 2023-09-08 | Underwater tensioner of floating fan mooring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211155272.XA CN115503882A (en) | 2022-09-22 | 2022-09-22 | Floating type underwater tensioner for fan mooring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115503882A true CN115503882A (en) | 2022-12-23 |
Family
ID=84506189
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211155272.XA Pending CN115503882A (en) | 2022-09-22 | 2022-09-22 | Floating type underwater tensioner for fan mooring system |
| CN202311157218.3A Pending CN117246450A (en) | 2022-09-22 | 2023-09-08 | Underwater tensioner of floating fan mooring system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311157218.3A Pending CN117246450A (en) | 2022-09-22 | 2023-09-08 | Underwater tensioner of floating fan mooring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN115503882A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116161170A (en) * | 2023-04-03 | 2023-05-26 | 大连海事大学 | Underwater anchor chain tensioning device and application method thereof |
-
2022
- 2022-09-22 CN CN202211155272.XA patent/CN115503882A/en active Pending
-
2023
- 2023-09-08 CN CN202311157218.3A patent/CN117246450A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116161170A (en) * | 2023-04-03 | 2023-05-26 | 大连海事大学 | Underwater anchor chain tensioning device and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117246450A (en) | 2023-12-19 |
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Application publication date: 20221223 |
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| WD01 | Invention patent application deemed withdrawn after publication |