CN114412965A - Identification method for preventing mooring chain from twisting - Google Patents
Identification method for preventing mooring chain from twisting Download PDFInfo
- Publication number
- CN114412965A CN114412965A CN202111681950.1A CN202111681950A CN114412965A CN 114412965 A CN114412965 A CN 114412965A CN 202111681950 A CN202111681950 A CN 202111681950A CN 114412965 A CN114412965 A CN 114412965A
- Authority
- CN
- China
- Prior art keywords
- chain
- ring
- torsion
- mooring
- color code
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000003973 paint Substances 0.000 claims abstract description 33
- 239000003086 colorant Substances 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010415 tidying Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/12—Hauling- or hoisting-chains so called ornamental chains
-
- 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
- B63B21/20—Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
-
- 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
- B63B21/20—Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
- B63B2021/203—Mooring cables or ropes, hawsers, or the like; Adaptations thereof
Abstract
The invention provides a mooring chain anti-torsion identification method, which comprises the following steps: step 1: before the mooring chain is marked, chain links of the mooring chain are straightened, the mooring chain is placed on a plane, the chain links needing to be marked are ensured to be positioned on the same plane, and the marking is carried out in the sequence of every other chain link; step 2: coating bright paint on every other chain ring on one side of each chain ring, taking the bright paint as a torsion-proof color code for distinguishing whether the chain is twisted, wherein the length of the torsion-proof color code is not less than 1d, and d is the nominal chain diameter of the chain; and step 3: and marking the ring number of the chain ring on the anti-torsion color code by using paint in other colors. The invention can clearly mark the twisting condition of the chain ring, thereby straightening the chain ring before installation, avoiding the influence on the service life caused by the twisting action when in use and prolonging the service life of the mooring chain.
Description
Technical Field
The invention relates to the field of mooring chains, in particular to an anti-torsion identification method for a mooring chain.
Background
Mooring chains are important equipment for mooring and positioning of offshore floats, wherein steel chains are indispensable components in mooring systems due to excellent bearing capacity, fatigue resistance and wear resistance. The length of the mooring chain is usually hundreds of meters or even thousands of meters, the mooring chain is often twisted in the packing, transporting and installing processes, the appearance of each ring is completely consistent, and the twisting condition of the chain cannot be seen after a certain distance is separated, so that the deflection angle between the rings is too large, the torque is generated, and the bearing capacity and the fatigue life of the chain are influenced. The invention provides an identification method for preventing the mooring chain from twisting, which can visually see the twisting condition of the chain, thereby correcting the chain before installation and preventing the influence on use.
Disclosure of Invention
The invention aims to provide a mooring chain twisting prevention marking method which can clearly mark the twisting condition of a chain ring, so that the chain ring is straightened before installation, and the service life is prevented from being influenced by twisting action during use.
In order to achieve the technical purpose and achieve the technical requirements, the invention adopts the technical scheme that an anti-torsion identification method for a mooring chain is provided, and comprises the following steps:
step 1: before the mooring chain is marked, chain links of the mooring chain are straightened, the mooring chain is placed on a plane, the chain links needing to be marked are ensured to be positioned on the same plane, and the marking is carried out in the sequence of every other chain link;
step 2: coating bright paint on every other chain ring on one side of each chain ring, taking the bright paint as a torsion-proof color code for distinguishing whether the chain is twisted, wherein the length of the torsion-proof color code is not less than 1d, and d is the nominal chain diameter of the chain;
and step 3: and marking the ring number of the chain ring on the anti-torsion color code by using paint in other colors.
Preferably, the torsion-proof color mark is centrally arranged at the straight arm part of the chain ring.
Preferably, the anti-twist color indicator is eccentrically arranged at the straight arm part of the chain ring.
Preferably, the torsion-proof color indicator covers the entire straight arm part of the chain ring.
Preferably, the torsion-proof color indicator covers half of the chain ring.
Preferably, the length of the anti-twisting color code is 1 d-6 d.
Preferably, the anti-twist color indicator covers the straight arm of the chain ring at an angle of 90 to 360 degrees.
As a preferable technical scheme, the paint in the step 2 and the paint in the step 3 have corrosion resistance.
The invention has the beneficial effects that: a mooring chain anti-torsion identification method is compared with a traditional structure:
1) every link at interval sets up prevents turning round the color code, prevent turning round the color code and set up the same position at the link, can clearly indicate the direction of link, judge whether the mooring chain takes place to twist reverse in the transportation, and carry out the reference numeral, it has twisted round to know that the chain ring of the number of sections has taken place, operating personnel can find torsional link fast, arrange it in order, prevent that the mooring chain from taking place to twist reverse when transportation and use, the phenomenon of mooring chain knotting has been avoided, the service life is prolonged, and the work efficiency is improved.
2) Preferably, the anti-twisting color code is arranged at the straight arm part of the chain ring, the space of the anti-twisting color code is better due to the fact that the space of the straight arm part of the chain ring is larger, the size of the anti-twisting color code can be designed according to requirements, the straight arm part of the chain ring belongs to a striking position, the anti-twisting color code is more easily observed after being coated, and the position of the anti-twisting color code is designed according to different design requirements.
3) Preferably, the size of each chain link of some mooring chains is not big, makes the anti-twist color indicator more striking through covering whole half ring, and the half ring that covers the chain link is the biggest coverage area of anti-twist color indicator moreover, and the anti-twist color indicator covers the half ring and can indicate the direction of torsion of chain link, avoids causing influences such as judgement mistake.
Drawings
FIG. 1 is a schematic diagram of example 1;
FIG. 2 is a schematic diagram of example 2;
FIG. 3 is a schematic diagram of example 3;
FIG. 4 is a schematic diagram of example 4.
Detailed Description
The invention is further described below with reference to the accompanying drawings;
referring to fig. 1 to 3, the invention provides a method for identifying torsion resistance of a mooring chain, comprising the following steps:
step 1: before the mooring chain is marked, chain links of the mooring chain are straightened, the mooring chain is placed on a plane, the chain links needing to be marked are ensured to be positioned on the same plane, and the marking is carried out in the sequence of every other chain link;
step 2: coating bright paint on every other chain ring on one side of each chain ring, taking the bright paint as a torsion-proof color code for distinguishing whether the chain is twisted, wherein the length of the torsion-proof color code is not less than 1d, and d is the nominal chain diameter of the chain;
and step 3: and marking the ring number of the chain ring on the anti-torsion color code by using paint in other colors.
The mooring chain is an important device for mooring and positioning of an offshore floating body, as the mooring chain is generally used for deep-water operation, the length of the mooring chain is usually hundreds of meters or even thousands of meters, torsion often occurs in the packing, transportation and installation processes, the appearance of each ring is completely consistent, the torsion condition of the chain cannot be seen after a certain distance is kept, so that the deflection angle between the rings is overlarge, torque is generated, the bearing capacity and the fatigue life of the chain are influenced, many anchor chains are used for the deep-water operation, the conventional method only can be judged by experience, the tidying workload is large, and the torsion direction cannot be judged quickly and accurately, so the inventor provides an anti-torsion identification method for the mooring chain, the bright paint is coated on the surface of each chain ring in the sequence of every other chain ring to serve as an anti-torsion color code, the anti-torsion color codes are all coated on the same part of the chain ring, and the chain rings of the mooring chain are used as stand rings, the twisting direction of the chain ring can be judged after the anti-twisting color code is coated on every other chain ring, then an operator can twist the chain ring coated with the anti-twisting color code to a correct position, so that the twisted chain rings are straightened one by one, and the anti-twisting color code is provided with a label, so that the operator can know that the chain ring of the second section is twisted, and can quickly find the twisted chain ring to straighten the chain ring, thereby greatly improving the working efficiency, avoiding the mooring chain from being stressed and bent due to twisting, and prolonging the service life.
Furthermore, prevent that it sets up at the straight arm position of chain ring or to prevent that it eccentrically sets up at the straight arm position of chain ring or to prevent that it covers the whole straight arm position of chain ring to twist the color mark at the straight arm position of chain ring to twist the color mark between two parties, because the straight arm position space of chain ring is great, it is just better to prevent twisting the space of color mark, can design the size of preventing twisting the color mark according to the demand to the straight arm position of chain ring belongs to striking position, scribble and prevent more easily observing after twisting the color mark, design the position of preventing twisting the color mark according to different design requirements.
Furthermore, the anti-twist color mark covers half of the chain ring, the size of each chain ring of some mooring chains is smaller, the anti-twist color mark is more striking by covering the whole half ring, the half ring covering the chain ring is the maximum coverage area of the anti-twist color mark, the anti-twist color mark covers the half ring and can indicate the twisting direction of the chain ring, if another half ring of the chain ring is also covered, the influence of judgment errors and the like can be caused, and therefore the anti-twist color mark covers the half ring with the maximum area of the chain ring.
Furthermore, the length of the anti-torsion color code is 1 d-6 d, the length of the half ring of the general chain ring is not greater than 6d, if the length of the half ring is greater than 6d, the identification effect of the anti-torsion color code is affected, confusion may be caused, and the length of the half ring cannot be less than 1d, otherwise, the label is too small to be seen clearly.
Furthermore, the angle of the straight arm part of the anti-twist color mark covering the chain ring is 90-360 degrees.
Further, the paint in the step 2 and the paint in the step 3 have corrosion resistance, and the paint has corrosion resistance so that the paint is not easy to be corroded by seawater and is not easy to fall off due to the fact that the working environment of the mooring chain is seawater.
Example 1
An identification method for preventing mooring chain torsion comprises the following steps:
step 1: before the mooring chain is marked, chain links of the mooring chain are straightened, the mooring chain is placed on a plane, the chain links needing to be marked are ensured to be positioned on the same plane, and the marking is carried out in the sequence of every other chain link;
step 2: coating bright-colored anti-corrosion paint on every other chain link on one side of each chain link, taking the bright-colored anti-corrosion paint as an anti-torsion color code for identifying whether the chain is twisted, wherein the anti-torsion color code is arranged in the straight arm part of each chain link in the middle, the length of the anti-torsion color code is not less than 1d, and the angle of the anti-torsion color code covering the straight arm part of each chain link is 90-360 degrees, wherein d is the nominal chain diameter of the chain;
and step 3: and marking the ring number of the chain ring on the anti-torsion color code by using paint in other colors.
Example 2
An identification method for preventing mooring chain torsion comprises the following steps:
step 1: before the mooring chain is marked, chain links of the mooring chain are straightened, the mooring chain is placed on a plane, the chain links needing to be marked are ensured to be positioned on the same plane, and the marking is carried out in the sequence of every other chain link;
step 2: the method comprises the steps that bright paint is coated on every other chain link on one side of each chain link, the bright paint serves as an anti-torsion color code and is used for distinguishing whether a chain is twisted or not, the anti-torsion color code is eccentrically arranged at a straight arm part of each chain link, the length of the anti-torsion color code is not less than 1d, the angle of the anti-torsion color code covering the straight arm part of each chain link is 90-180 degrees, and d is the nominal chain diameter of the chain.
And step 3: and marking the ring number of the chain ring on the anti-torsion color code by using paint in other colors.
Example 3
An identification method for preventing mooring chain torsion comprises the following steps:
step 1: before the mooring chain is marked, chain links of the mooring chain are straightened, the mooring chain is placed on a plane, the chain links needing to be marked are ensured to be positioned on the same plane, and the marking is carried out in the sequence of every other chain link;
step 2: and coating bright paint on every other chain ring on one side of each chain ring, taking the bright paint as an anti-torsion color code for identifying whether the chain is twisted or not, wherein the anti-torsion color code covers half of the chain ring, d is the nominal chain diameter of the chain, and the angle of the straight arm part of the chain ring covered by the anti-torsion color code is 90-360 degrees.
And step 3: and marking the ring number of the chain ring on the anti-torsion color code by using paint in other colors.
Example 4
An identification method for preventing mooring chain torsion comprises the following steps:
step 1: before the mooring chain is marked, chain links of the mooring chain are straightened, the mooring chain is placed on a plane, the chain links needing to be marked are ensured to be positioned on the same plane, and the marking is carried out in the sequence of every other chain link;
step 2: and coating bright paint on every other chain ring on one side of each chain ring, taking the bright paint as an anti-torsion color code for identifying whether the chain is twisted or not, wherein the anti-torsion color code covers the whole straight arm part of the chain ring, d is the nominal chain diameter of the chain, and the angle of the anti-torsion color code covering the straight arm part of the chain ring is 90-360 degrees.
And step 3: and marking the ring number of the chain ring on the anti-torsion color code by using paint in other colors.
The foregoing examples are given solely for the purpose of illustrating the invention and are not to be construed as limiting the embodiments, and other variations and modifications in form thereof will be suggested to those skilled in the art upon reading the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments and all such obvious variations and modifications are deemed to be within the scope of the invention.
Claims (8)
1. A mooring chain anti-torsion identification method is characterized in that: the method comprises the following steps:
step 1: before the mooring chain is marked, chain links of the mooring chain are straightened, the mooring chain is placed on a plane, the chain links needing to be marked are ensured to be positioned on the same plane, and the marking is carried out in the sequence of every other chain link;
step 2: coating bright paint on every other chain ring on one side of each chain ring, taking the bright paint as a torsion-proof color code for distinguishing whether the chain is twisted, wherein the length of the torsion-proof color code is not less than 1d, and d is the nominal chain diameter of the chain;
and step 3: and marking the ring number of the chain ring on the anti-torsion color code by using paint in other colors.
2. The identification method for preventing mooring chain twisting according to claim 1, characterized in that: the anti-twist color mark is arranged in the middle of the straight arm part of the chain ring.
3. The identification method for preventing mooring chain twisting according to claim 1, characterized in that: the anti-twist color indicator is eccentrically arranged at the straight arm part of the chain ring.
4. The identification method for preventing mooring chain twisting according to claim 1, characterized in that: the anti-twist color code covers the whole straight arm part of the chain ring.
5. The identification method for preventing mooring chain twisting according to claim 1, characterized in that: the anti-twist color indicator covers half of the chain ring.
6. The identification method for preventing mooring chain twisting according to claim 1, characterized in that: the length of the anti-torsion color code is 1 d-6 d.
7. The identification method for preventing mooring chain twisting according to claim 1, characterized in that: the angle of the straight arm part of the anti-twist color mark covering the chain ring is 90-360 degrees.
8. The identification method for preventing mooring chain twisting according to claim 1, characterized in that: the paint in the step 2 and the paint in the step 3 have corrosion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681950.1A CN114412965A (en) | 2021-12-31 | 2021-12-31 | Identification method for preventing mooring chain from twisting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681950.1A CN114412965A (en) | 2021-12-31 | 2021-12-31 | Identification method for preventing mooring chain from twisting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114412965A true CN114412965A (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111681950.1A Pending CN114412965A (en) | 2021-12-31 | 2021-12-31 | Identification method for preventing mooring chain from twisting |
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| CN (1) | CN114412965A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117465610A (en) * | 2023-12-27 | 2024-01-30 | 中海油能源发展股份有限公司采油服务分公司 | Construction method of underwater mooring steel cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2190130A (en) * | 1938-09-27 | 1940-02-13 | Columbus Mckinnon Chain Corp | Method of making twisted chain |
| DE3246490A1 (en) * | 1982-12-13 | 1984-07-19 | Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co, 7080 Aalen | Arrangement for connecting a chain strand to a component |
| EP0677681A1 (en) * | 1994-04-13 | 1995-10-18 | Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co. | Chain suspensions |
| CN1256412A (en) * | 1998-12-07 | 2000-06-14 | 因温特奥股份公司 | Device for detemining requiring or not to charge synthetic fibre rope |
| WO2000057079A1 (en) * | 1999-03-19 | 2000-09-28 | Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co. | Chain made of rod steel chain links |
| JP2002067640A (en) * | 2000-08-31 | 2002-03-08 | Fec Chain:Kk | Tire chain twist confirmation device |
| JP2004050276A (en) * | 2002-07-24 | 2004-02-19 | Tetsuo Karasawa | Chain |
| DE202012002444U1 (en) * | 2012-03-06 | 2012-03-29 | K.B.P. Kettenwerk Becker-Prünte Gmbh | Flat chain for continuous conveyor |
| CN108691326A (en) * | 2017-04-12 | 2018-10-23 | 卡特彼勒公司 | Dragline chain |
| CN210318358U (en) * | 2019-07-19 | 2020-04-14 | 上海力直得输送装备有限公司 | Vertical chain connecting ring for mining chain capable of preventing self-locking during chain stacking |
| WO2020098856A1 (en) * | 2018-11-16 | 2020-05-22 | Thiele Gmbh & Co. Kg | Steel component with labeling and method of producing the labeling |
| CN111238561A (en) * | 2020-02-17 | 2020-06-05 | 山东钢铁股份有限公司 | Pipe belt torsion monitoring method |
| CN211707298U (en) * | 2020-02-17 | 2020-10-20 | 山东钢铁股份有限公司 | Pipe area painting device |
| CN112606950A (en) * | 2020-12-08 | 2021-04-06 | 江苏亚星锚链股份有限公司 | Non-circular section chain ring and manufacturing method thereof |
-
2021
- 2021-12-31 CN CN202111681950.1A patent/CN114412965A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2190130A (en) * | 1938-09-27 | 1940-02-13 | Columbus Mckinnon Chain Corp | Method of making twisted chain |
| DE3246490A1 (en) * | 1982-12-13 | 1984-07-19 | Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co, 7080 Aalen | Arrangement for connecting a chain strand to a component |
| EP0677681A1 (en) * | 1994-04-13 | 1995-10-18 | Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co. | Chain suspensions |
| CN1256412A (en) * | 1998-12-07 | 2000-06-14 | 因温特奥股份公司 | Device for detemining requiring or not to charge synthetic fibre rope |
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| DE202012002444U1 (en) * | 2012-03-06 | 2012-03-29 | K.B.P. Kettenwerk Becker-Prünte Gmbh | Flat chain for continuous conveyor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117465610A (en) * | 2023-12-27 | 2024-01-30 | 中海油能源发展股份有限公司采油服务分公司 | Construction method of underwater mooring steel cable |
| CN117465610B (en) * | 2023-12-27 | 2024-03-19 | 中海油能源发展股份有限公司采油服务分公司 | Construction method of underwater mooring steel cable |
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Application publication date: 20220429 |