CN102734297A - Anchoring bolt for offshore wind power foundation - Google Patents
Anchoring bolt for offshore wind power foundation Download PDFInfo
- Publication number
- CN102734297A CN102734297A CN2012101889343A CN201210188934A CN102734297A CN 102734297 A CN102734297 A CN 102734297A CN 2012101889343 A CN2012101889343 A CN 2012101889343A CN 201210188934 A CN201210188934 A CN 201210188934A CN 102734297 A CN102734297 A CN 102734297A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- offshore wind
- anchor bolt
- coating
- wind farm
- 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
- 238000004873 anchoring Methods 0.000 title 1
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 239000004593 Epoxy Substances 0.000 claims abstract description 14
- 239000011521 glass Substances 0.000 claims abstract description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011701 zinc Substances 0.000 claims abstract description 5
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 5
- 238000004210 cathodic protection Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 241000370738 Chlorion Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses an anchor bolt for an offshore wind power foundation, which comprises a screw rod (1), wherein both ends of the screw rod (1) are provided with thread sections (2), at least one end of the screw rod (1) is provided with a protective nut (3), a gasket (4) and an antirust cover (5) capable of covering the exposed thread sections (2), the surfaces of the screw rod (1), the nut (3) and the gasket (4) are respectively provided with a chromium-free Dacromet coating (6), the chromium-free Dacromet coating (6) of the screw rod (1) is provided with an epoxy glass flake coating (7), and the screw rod (1) is further sleeved with an anticorrosive sleeve (8) matched with the outer diameter. Epoxy zinc-rich primer which plays a role in shielding and cathodic protection is coated on the threaded section (2) at one end provided with the anti-rust cover (5), the gasket (4) and the nut (3). The thickness of the chromium-free Dacromet coating (6) is 10.0 to 11.9 microns, and the dry film thickness of the epoxy glass flake coating (7) is 50 to 80 microns.
Description
Technical field
The present invention relates to fastening piece, particularly relate to a kind of anchor bolt that is used for offshore wind generating group basis.
Technical background
The life requirements of the steel structure surface anticorrosion protection of wind power generating set is at least 15 years (abide by the ISO12944-1 standard: the surface is protected for a long time), and its anti-corrosion protection target is to reach the following 30 years life requirements of ocean environment.According to international standard ISO12944-2, be in that the corrosion of steel structure grade is C5-M under the ocean environment.Although anchor bolt is positioned among the parcel of basic concrete stake, owing to contain a large amount of chlorions in seawater or the ooze, it will produce very serious erosion to anchor bolt through the cement space.In a single day the anchor bolt that is positioned among the cement parcel is corroded; Have the possibility of repairing hardly, general people handle in order to make metal bolts have better antiseptic effect to carry out Dacroment to it, still; Anchor bolt length reaches more than 6 meters; Common Dacroment difficult treatment, and common Dacroment contains the chromium element in handling and can cause environmental pollution, and this has brought stern challenge to the anti-corrosion protection that is positioned at marine wind power generating set basis anchor bolt; Therefore, can under ocean environment, there be the anchor bolt of good antiseptic effect very important to the design of offshore wind turbine foundation anchor bolt is a kind of.
Summary of the invention
In order to solve deficiency of the prior art, realize and satisfy the anti-corrosion protection life requirements in 30 years of wind power generating set under the sea climate environment, the present invention has designed a kind of anchor bolt that is used for the offshore wind farm basis:
Comprise screw rod; Said screw rod two ends are equipped with thread section; At least the antirust cover that on an end of screw rod, is provided with protection nut, pad and can covers the thread section that exposes; It is characterized in that: be provided with the chromium-free Dyclo coating at screw rod, nut and gasket surface, the chromium-free Dyclo coating of screw rod is provided with the epoxy glass flake coating.
On screw rod, also be arranged with the anticorrosive casing pipe of external diameter coupling with it.
Said sleeve pipe two ends and crab-bolt bolt attachment portion seal with heat-shrinkable T bush.
The material of said antirust cover is a silicone rubber.
The material of said sleeve pipe is PVC.
On the thread section, pad and the nut that are provided with antirust cover one end, be coated with the epoxy zinc rich primer that plays shielding and cathodic protection effect.
The chromium-free Dyclo coating thickness is the 10.0-11.9 micron.
Epoxy glass flake coating dry film thickness is the 50-80 micron.
Whole (containing nut, the pad) chromium-free Dyclo of bolt is handled, compared with common Dacromet Technology, chromium-free Dyclo does not contain chromium ion; Environmentally safe, harmless, and need not to be heating and curing; Energy saving, easy construction on anchor bolt simultaneously, effective.Part between the thread section on the screw rod added again be coated with the epoxy glass flake coating, this coating provides good shielding properties, can effectively completely cut off the erosion of aggressive mediums such as chlorion.
Sheathed anticorrosion anti-oxidation sleeve pipe on screw rod; The antirust cover of the thread section that is provided with protection nut, pad in the screw rod end and exposes; And apply the epoxy zinc rich primer that plays shielding and cathodic protection effect at nut, pad and the thread section place of exposing, can more effectively prevent the erosion of seawater.
Description of drawings
Fig. 1 is the anchor bolt structural representation.
Fig. 2 connects the partial structurtes schematic representation that is connected with offshore wind farm base concrete and flange for anchor bolt.
Embodiment
Anchor bolt schematic representation as shown in Figure 1, shown in anchor bolt comprise screw rod 1, be equipped with thread section 2 at the two ends of screw rod 1, on thread section 2, be connected with nut 3, also be provided with pad 4 on the thread section 2.Bolt whole (containing nut and pad) adopts environment-friendly chromium-free Dacroment (being Aluminum Coating) to handle; Make the bolt integral surface be provided with chromium-free Dyclo coating 6; The thickness of chromium-free Dyclo coating 6 is the 10.0-11.9 micron; On screw rod 1 chromium-free Dyclo coating 6, be provided with epoxy glass flake coating 7 more then, the thickness of epoxy glass flake coating 7 is the 50-80 micron.After above-mentioned processing; On screw rod 1, be arranged with corrosion-resistant sleeve pipe 8, sleeve pipe 8 length are confirmed according to screw rod 1 design length of bolt, the sheathed heat-shrink tube of going up of the both ends open of sleeve pipe 8; Heat hot draw heat-shrink tube begins to shrink; Wrap sleeve pipe 8 and screw rod 1, thereby sleeve pipe 8 be sealably coupled on the anchor bolt, above the material of the sleeve pipe 8 mentioned be PVC.
The partial structurtes schematic representation that anchor bolt as shown in Figure 2 is connected with offshore wind farm base concrete and flange; Comprise anchor bolt; And concrete 10 and flange plate 9; Anchor bolt is connected the back exposed parts and adopts the antirust cover 5 of corrosion-resistant to protect with flange plate 9, antirust cover 5 exposes size according to bolt to be made.Before antirust cover 5 is installed; Need pad 4, the nut 3 at bolt two ends and the helical thread portion 2 coating epoxy zinc rich primers that expose are protected; Require antirust cover 5 bottoms and bolt fitting surface good leak tightness after the installation, can effectively prevent contact bolt and nuts 3 such as steam, dust.When antirust cover 5 is installed, can only install at exposed parts, and the part that is embedded in the concrete does not need to install, and can in being embedded in concrete, nut end be installed by antirust cover 5 in order to reach better effect yet, described antirust cover 5 materials are silicone rubber.
Claims (8)
1. one kind is used for the basic anchor bolt of offshore wind farm; Comprise screw rod (1); Said screw rod (1) two ends are equipped with thread section (2); At least the antirust cover (5) that on an end of screw rod (1), is provided with protection nut (3), pad (4) and can covers the thread section (2) that exposes; It is characterized in that: be provided with chromium-free Dyclo coating (6) on screw rod (1), nut (3) and pad (4) surface, the chromium-free Dyclo coating (6) of screw rod (1) is provided with epoxy glass flake coating (7).
2. the offshore wind farm basis anchor bolt that is used for according to claim 1 is characterized in that: on screw rod (1), also be arranged with the anticorrosive casing pipe (8) of external diameter coupling with it.
3. the offshore wind farm basis anchor bolt that is used for according to claim 2, it is characterized in that: said sleeve pipe (8) two ends are sealed on the screw rod (1) with heat-shrinkable T bush.
4. the anchor bolt that is used for the offshore wind farm basis according to claim 1, it is characterized in that: the material of said antirust cover (5) is a silicone rubber.
5. according to claim 2 or the 3 described anchor bolts that are used for the offshore wind farm basis, it is characterized in that: the material of said sleeve pipe (8) is PVC.
6. the anchor bolt that is used for offshore wind farm basis according to claim 1 is characterized in that: be coated with the epoxy zinc rich primer that plays shielding and cathodic protection effect on the thread section (2) of antirust cover (5) one ends, pad (4) and the nut (3) being provided with.
7. the anchor bolt that is used for the offshore wind farm basis according to claim 1, it is characterized in that: chromium-free Dyclo coating (6) thickness is the 10.0-11.9 micron.
8. the anchor bolt that is used for the offshore wind farm basis according to claim 1, it is characterized in that: epoxy glass flake coating (7) thickness of dry film is the 50-80 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101889343A CN102734297A (en) | 2012-06-08 | 2012-06-08 | Anchoring bolt for offshore wind power foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101889343A CN102734297A (en) | 2012-06-08 | 2012-06-08 | Anchoring bolt for offshore wind power foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734297A true CN102734297A (en) | 2012-10-17 |
Family
ID=46990373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101889343A Pending CN102734297A (en) | 2012-06-08 | 2012-06-08 | Anchoring bolt for offshore wind power foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734297A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556650A (en) * | 2013-11-15 | 2014-02-05 | 北京金风科创风电设备有限公司 | Anchor bolt anticorrosion device and method |
| CN103556652A (en) * | 2013-11-22 | 2014-02-05 | 北京金风科创风电设备有限公司 | Corrosion prevention device and method for anchor bolt and high-strength screw rod |
| CN108266444A (en) * | 2018-01-22 | 2018-07-10 | 牛永强 | A kind of screw protective sleeve of anti-UV and preparation method thereof |
| CN108612733A (en) * | 2016-12-09 | 2018-10-02 | 中国石油天然气股份有限公司 | The installation method of bolt device and protective case |
| CN113719514A (en) * | 2021-08-06 | 2021-11-30 | 东南大学 | Vibration reduction bolt kit for subway segments and vibration reduction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3675381A (en) * | 1970-09-21 | 1972-07-11 | Gary Q Watson | Protection of anchor rods against corrosion |
| CN101260252A (en) * | 2008-04-28 | 2008-09-10 | 山东大学 | Chromium-free Dyclo paint |
| CN201771688U (en) * | 2010-05-11 | 2011-03-23 | 江苏宇杰钢机有限公司 | Wind power generation tower foundation bolt protecting jacket |
| CN201915300U (en) * | 2010-12-30 | 2011-08-03 | 天津市银龙预应力钢材集团有限公司 | Insulating anticorrosion prestressed steel bar |
| CN102344739A (en) * | 2011-09-22 | 2012-02-08 | 浙江钱浪涂料科技有限公司 | Epoxy glass flake heavy-duty coating and preparation method thereof |
-
2012
- 2012-06-08 CN CN2012101889343A patent/CN102734297A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3675381A (en) * | 1970-09-21 | 1972-07-11 | Gary Q Watson | Protection of anchor rods against corrosion |
| CN101260252A (en) * | 2008-04-28 | 2008-09-10 | 山东大学 | Chromium-free Dyclo paint |
| CN201771688U (en) * | 2010-05-11 | 2011-03-23 | 江苏宇杰钢机有限公司 | Wind power generation tower foundation bolt protecting jacket |
| CN201915300U (en) * | 2010-12-30 | 2011-08-03 | 天津市银龙预应力钢材集团有限公司 | Insulating anticorrosion prestressed steel bar |
| CN102344739A (en) * | 2011-09-22 | 2012-02-08 | 浙江钱浪涂料科技有限公司 | Epoxy glass flake heavy-duty coating and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556650A (en) * | 2013-11-15 | 2014-02-05 | 北京金风科创风电设备有限公司 | Anchor bolt anticorrosion device and method |
| CN103556650B (en) * | 2013-11-15 | 2016-08-17 | 北京金风科创风电设备有限公司 | Anchor bolt anticorrosion device and method |
| CN103556652A (en) * | 2013-11-22 | 2014-02-05 | 北京金风科创风电设备有限公司 | Corrosion prevention device and method for anchor bolt and high-strength screw rod |
| CN103556652B (en) * | 2013-11-22 | 2016-02-10 | 北京金风科创风电设备有限公司 | Corrosion prevention device and method for anchor bolt and high-strength screw rod |
| CN108612733A (en) * | 2016-12-09 | 2018-10-02 | 中国石油天然气股份有限公司 | The installation method of bolt device and protective case |
| CN108266444A (en) * | 2018-01-22 | 2018-07-10 | 牛永强 | A kind of screw protective sleeve of anti-UV and preparation method thereof |
| CN108266444B (en) * | 2018-01-22 | 2023-10-13 | 牛永强 | UV-resistant screw protection sleeve and preparation method thereof |
| CN113719514A (en) * | 2021-08-06 | 2021-11-30 | 东南大学 | Vibration reduction bolt kit for subway segments and vibration reduction method thereof |
| CN113719514B (en) * | 2021-08-06 | 2024-03-26 | 东南大学 | Vibration reduction bolt sleeve for subway segments and vibration reduction method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121017 |