CN204760980U - Offshore wind farm current collection sea cable goes out protection architecture behind IJ type pipe - Google Patents
Offshore wind farm current collection sea cable goes out protection architecture behind IJ type pipe Download PDFInfo
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- CN204760980U CN204760980U CN201520401586.2U CN201520401586U CN204760980U CN 204760980 U CN204760980 U CN 204760980U CN 201520401586 U CN201520401586 U CN 201520401586U CN 204760980 U CN204760980 U CN 204760980U
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Abstract
The utility model discloses an offshore wind farm current collection sea cable goes out the protection architecture of basic IJ type pipe, an offshore wind farm current collection sea cable goes out protection architecture behind IJ type pipe, including setting up in the concrete seal membrane bag of the extra large cable of unsettled section below, it is equipped with the concrete to irritate in the concrete seal membrane bag, set up in the grout hole of concrete seal membrane bag side to and a plurality of set up side by side in the fixed knot of extra large cable at concrete seal membrane bag top. The problem of extra large cable unsettled unshielded is solved, adopt the method of burying deeply construction inconvenience and secondary to draw the brush problem in still having solved simultaneously the conventional art, the sand bag ballast is fixed insecurely and brush problem, the flexible protection tube scheme problem of costing an arm and a leg are drawn to the secondary.
Description
Technical field
The utility model relates to ocean engineering field, particularly relates to coastal waters, intertidal belt submarine windward Electric field collector sea cable goes out the operator guards after I/J type pipe.
Background technology
Offshore wind farm is a kind of important clean energy resource; due to its have wind speed compared with high, wind frequently stable, shear is little, aboundresources, do not account for the feature such as soil, suitable large-scale development; and offshore wind farm is near developed area; distance power load center is near; power consumption ability is strong; there is not access and the advantages such as problem of rationing the power supply, in recent years continuous large-scale development.
Sea, seabed cable is the visual plant that power transmission and wind field transmit electricity to continental Grid of networking between marine wind electric field fan and blower fan.After in wind field, current collection sea cable goes out I/J type pipe, below sea bed face is imbedded by the punching mode of burying, under J type pipe exports and imbeds sea bed, this section of extra large cable is unsettled often, and along with the souring that seawater is long-term, unsettled section of the cable in sea can be more and more longer, at ocean current, gush, the extra large cable of unsettled section is in swing state for a long time under wave effect.Except current collection sea cable in wind field goes out except the unsettled problem of I/J type pipe place sea cable, main extra large cable in wind energy turbine set or current collection sea cable, due to path Geological Reasons, local current reason, drag anchor reason and other reasons, also can cause extra large cable that the unsettled of local segment occurs after long-time running and cause extra large cable to be in vibration problems for a long time.The extra large cable of unsettled section is in swing state for a long time and can be able to has a huge impact the useful life of sea, seabed cable, serious meeting causes the fatigue fracture of J type pipe stiff end tie point, and the long-term friction of extra large cable and J type pipe exit steel construction also causes extra large cable to wear and tear finally to cause extra large cable to rupture.At home and abroad marine wind electric field engineering failure 70% and extra large cable destroy direct or indirect relation at present.
In conventional art, mainly propose three kinds of schemes overcome the above problems: I/J type pipe exit position is arranged at the following certain depth in sea bed face (buried depth is determined according to actual conditions computational analysis) by (1), extra large cable is made not spill original sea bed face, what namely consider sea bed in advance washes away the reserved degree of depth, but adopts this buried method construction very inconvenient; (2) or after extra large cable goes out I/J shape pipe, adopt the scheme of throwing cement sandbag or jackstone to carry out protection against erosion, but this scheme is often difficult to implement due to environmental requirement; Or adopt special flexible more piece protection tube device to protect extra large cable, but this covering device cost is very high (3).
Utility model content
Based on this; for above-mentioned problem; the utility model proposes the operator guards that a kind of marine wind electric field current collection sea cable goes out basic I/J type pipe; solve the unsettled unguarded problem of extra large cable; also solve in conventional art simultaneously and adopt buried method construction inconvenience and secondary to draw brush problem; sandbag ballast is fixed insecure and secondary and is drawn brush problem, the expensive problem of flexible protective pipe scheme.
Its technical scheme is as follows:
Marine wind electric field current collection sea cable goes out the operator guards after I/J type pipe, comprises the concrete dense sealer bag be arranged at below unsettled section of extra large cable, fills with and be provided with concrete in described concrete dense sealer bag; Be arranged at the grouting hole of described concrete dense sealer bag side, and multiple extra large cable clip be arranged side by side in described concrete dense sealer bag top.
By concrete dense sealer bag is arranged on below unsettled section of extra large cable, and grouting hole is set in concrete dense sealer bag side, fill with in concrete dense sealer bag by this grouting hole and establish concrete slurry, unsettled section of extra large cable is supported, makes unsettled section of extra large cable no longer unsettled.In addition, by arranging extra large cable clip on concrete dense sealer bag, extra large cable can be fixed on concrete dense sealer bag.Thus realize, to the support of unsettled section of extra large cable and fixing, avoiding extra large cable unsettled and swinging.
Below its further technical scheme is described:
Further, described concrete dense sealer bag is set to single or multiple lift, and described concrete dense sealer bag adopts fine and close wear-resisting resilient material to make.As required, individual layer or concrete dense sealer bag repeatedly can be set under unsettled section of extra large cable, can realize better the support of unsettled section of extra large cable and fixing.In addition, select and adopt fine and close wear-resisting resilient material to make concrete dense sealer bag, concrete dense sealer bag water resistance spreading performance can be made good, and wear-resisting not cracky, make grouting reliable smoothly.
Further, described grouting hole is arranged at described concrete dense sealer bag center side position, and described grouting hole has self sealss.Grouting hole is arranged on center, slurry Uniform Flow in concrete dense sealer bag can be made shaping.In addition, grouting hole has self sealss, needs one section of grouting pressure to pour into, seawater can not be made to enter, affect concrete grouting forming process.
Further, described extra large cable clip is set to annular buckle-like, and described extra large cable clip adopts high-strength nylon band to make.Extra large cable clip is set to annular buckle-like, extra large cable can be located in annular extra large cable clip center, can retrains extra large cable in the two directions, make extra large cable fixing reliable.
The utility model has following outstanding advantage:
1, the protection of unsettled section of extra large cable and stressed transmission effect can be realized; fundamentally solve this section of unsettled unguarded problem of extra large cable; also solve in conventional art simultaneously and adopt buried method construction inconvenience and secondary to draw brush problem; sandbag ballast is fixed insecure and secondary and is drawn brush problem, and the expensive problem of flexible protective pipe scheme.
2, in addition, also fundamentally solve submarine cable and J-shaped pipe flared rim wear problem and follow-up secondary and wash away and repair problem again, the useful life of extra large cable is greatly improved, ensure that marine wind electric field reliability of operation and fail safe.
Accompanying drawing explanation
Fig. 1 is that the extra large cable that the extra large cable of marine wind electric field current collection described in the utility model embodiment goes out basic I/J type pipe place washes away unsettled schematic diagram;
Fig. 2 goes out the unsettled section of extra large cable in basic I/J type pipe place to described marine wind electric field current collection sea cable in the utility model embodiment to carry out supporting fixing schematic diagram;
Fig. 3 is that the sea of marine wind electric field current collection described in the utility model embodiment cable is by washing away rear unsettled schematic diagram;
Fig. 4 carries out supporting fixing schematic diagram to unsettled section of extra large cable of described marine wind electric field current collection sea cable in the utility model embodiment;
Fig. 5 is the structural representation of the bag of concrete dense sealer described in the utility model embodiment;
Fig. 6 is the structural representation that unsettled section of extra large cable fixed by the bag of concrete dense sealer described in the utility model embodiment.
Description of reference numerals:
10-basis pile foundation, 20-I/J type pipe, the 22-I/J type pipe mouth of pipe, 30-scour hole, 100-concrete dense sealer bag, 110-grouting hole, 120-sea cable clip, 130-concrete, 200-sea cable, 210-unsettled section of extra large cable.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
As shown in Figure 1, for the marine wind electric field newly built construction built or the marine wind electric field engineering built up, the extra large cable 200 be arranged in basic pile foundation 10 is located in I/J type pipe 20, sea cable 200 is drawn from the I/J type pipe mouth of pipe 22 and is embedded to sea bed, formation scour hole 30 is being washed away because of ocean current near basic pile foundation 10 place, can cause occurring unsettled from the I/J type pipe mouth of pipe 22 to one section that imbeds sea bed extra large cable 200, namely produce one section of unsettled section of extra large cable 210.As shown in Figure 2; operator guards after the utility model provides a kind of marine wind electric field current collection sea cable to go out I/J type pipe; can unsettled section of extra large cable 210 be supported and be fixed, avoid this unsettled section extra large cable 210 to occur to swing and cause extra large cable 200 and destroy and cause marine wind electric field fault.In addition, extra large cable 200 also can be made not contact with the trumpet-shaped I/J type pipe mouth of pipe 22, avoid the fretting wear of extra large cable 200 and the I/J type pipe mouth of pipe 22.
In addition, as shown in Figure 3, for the extra large cable 200 be embedded in sea bed, due to the souring of ocean current, also can form scour hole 30, thus make one section of unsettled spilling of extra large cable 200 form unsettled section of extra large cable 210 in this scour hole 30, under the constant impingement of ocean current, this unsettled section extra large cable 210 also can swing.As shown in Figure 4, the operator guards after the utility model also provides a kind of marine wind electric field current collection sea cable to go out I/J type pipe, can support unsettled section of extra large cable 210 and fix, thus avoid this unsettled section extra large cable 210 to swing.
As shown in Figure 5 to Figure 6, the operator guards after above-mentioned marine wind electric field current collection sea cable goes out I/J type pipe comprises the concrete dense sealer bag 100 be arranged at below unsettled section of extra large cable 210, concrete perfusion 130 in concrete dense sealer bag 100.And, concrete dense sealer bag 100 can be set to single or multiple lift as required, and concrete dense sealer bag 100 adopts fine and close wear-resisting resilient material to make, as wear-resistant plastic or abrasive rubber.As required, individual layer or concrete dense sealer bag 100 repeatedly can be set at unsettled section of extra large cable for 210 times, can realize better the support of unsettled section of extra large cable 210 and fixing.In addition, select and adopt fine and close wear-resisting resilient material to make concrete dense sealer bag 100, concrete dense sealer bag 100 water resistance spreading performance can be made good, and wear-resisting not cracky, make grouting reliable smoothly.
In addition, concrete dense sealer bag 100 side is provided with grouting hole 110, and this grouting hole 110 is arranged at concrete dense sealer bag 100 center side position, and this grouting hole 110 has self sealss.Grouting hole 110 is arranged on center, slurry Uniform Flow in concrete dense sealer bag 100 can be made shaping.In addition, grouting hole 110 has self sealss, needs one section of grouting pressure to pour into, seawater can not be made to enter, affect concrete grouting forming process.
In addition, also multiple extra large cable clip 120 has been arranged side by side at concrete dense sealer bag 100 top.And extra large cable clip 120 is set to annular buckle-like, and this extra large cable clip 120 adopts high-strength nylon band to make.Extra large cable clip 120 is set to annular buckle-like, extra large cable 200 can be located in annular extra large cable clip 120 center, can retrains extra large cable 200 in the two directions, make extra large cable 200 fixing reliable.
By concrete dense sealer bag 100 being arranged on below unsettled section of extra large cable 210, and grouting hole 110 is set in concrete dense sealer bag 100 side, fill with in concrete dense sealer bag 100 by this grouting hole 110 and establish concrete slurry, unsettled section of extra large cable 210 is supported, unsettled section of extra large cable 210 can be made no longer unsettled.In addition, by arranging extra large cable clip 120 on concrete dense sealer bag 100, extra large cable 200 can be fixed on concrete dense sealer bag 100.Thus realize, to the support of unsettled section of extra large cable 210 and fixing, avoiding extra large cable 200 unsettled and swinging.
In addition, for solving the unsettled unguarded problem of extra large cable, going out the operator guards after I/J type pipe according to above-mentioned marine wind electric field current collection sea cable, also proposed a kind of corresponding guard method, comprising the steps:
S100, according to the unsettled situation of extra large cable 200, analyze determine to need to arrange the size of concrete dense sealer bag 100, the number of plies and installation site;
S200, the information of concrete dense sealer bag 100 arranged according to the needs determined, arrange concrete dense sealer bag 100 bottom extra large cable 200;
S300, grouting in concrete dense sealer bag 100, realize the fixing of unsettled section of extra large cable 210 and support.
Further, for newly-built marine wind electric field engineering, carry out marine wind electric field current collection sea cable go out I/J type pipe after guard method specifically comprise the steps:
S100', according to the unsettled situation of extra large cable 200, analyze determine to need to arrange the size of concrete dense sealer bag 100, the number of plies and installation site, specifically comprise the steps: again
Drawing data laid by S110', collection site data, foundation structure data and extra large cable, by washing away preanalysis and ballast analysis to sedimentation preanalysis, later stage, determines the size needing the concrete dense sealer bag 100 arranged;
S120', by estimating the ocean current size of possibility that later-stage secondary washes away and engineering region, determine the number of plies needing the concrete dense sealer bag 100 arranged.Usual concrete dense sealer bag 100 number of plies arranges two-layer, ground floor concrete dense sealer bag 100 is use mainly as to the fixing of unsettled section of extra large cable 210 and support, second layer concrete dense sealer bag 100 is as subsequent use, may be there is the reasons such as secondary washes away and cause the unsettled problem of extra large cable secondary in the later stage, just can be in the milk in concrete dense envelope 100 for subsequent use and solve the unsettled problem of extra large cable secondary;
S130', by scour hole sunykatuib analysis, determine the installation site of concrete dense sealer bag 100.This installation site is apart from n times of pile foundation radius (n, according to concrete engineering, is determined by scour hole 30 sunykatuib analysis) outside basic pile foundation 10;
S200', the installation site of concrete dense sealer bag 100 arranged according to the needs determined, settle the single or multiple lift concrete dense sealer bag 100 needing size before extra large cable 200 is laid bottom extra large cable 200;
S300', grouting in concrete dense sealer bag 100, realize the fixing of unsettled section of extra large cable 210 and support, specifically comprising the steps: again
S310', bottom unsettled section of extra large cable 210, concrete dense sealer bag 100 is set after, by the grouting hole 110 of grout pipe waterborne access concrete dense sealer bag 100, in concrete dense sealer bag 100, be fed into the concrete slurry of scheduled volume;
S320', dismounting grout pipe, install the grouting hole 110 of envelope plug for seal concrete dense sealer bag 100, and be fixed on by unsettled section of extra large cable on the extra large cable clip 120 of setting on concrete dense sealer bag 100, complete the fixing of unsettled section of extra large cable 210 and support.
In above process, note also and the bending radius of extra large cable 200 is limited, guarantee that extra large cable 200 actual flexion radius is greater than the minimum bending radius of its permission, avoid causing damage to extra large cable.
In addition, for built marine wind electric field engineering, carry out marine wind electric field current collection sea cable go out I/J type pipe after guard method specifically comprise the steps:
S100 ＂, collecting site data, drawing data laid by foundation structure data, extra large cable and current wash away situation, by washing away preanalysis and ballast analysis to sedimentation preanalysis, later stage, determining the size needing the concrete dense sealer bag 100 arranged.Because there is scour hole 30, so do not need the installation site confirming concrete dense sealer bag 100 again;
S200 ＂, the size of concrete dense sealer bag 100 arranged according to the needs determined, concrete dense sealer bag 100 is arranged at bottom unsettled section of extra large cable 210 under water, and unsettled section of extra large cable 210 is fixed on concrete dense sealer bag 100, this concrete dense sealer bag 100 is arranged at scour hole 30 center position;
S300 ＂, grouting in concrete dense sealer bag 100, realize the fixing of unsettled section of extra large cable 210 and support, concrete steps and S300' are substantially identical.
The utility model proposes the operator guards that a kind of marine wind electric field current collection sea cable goes out basic I/J type pipe; the protection of unsettled section of extra large cable and stressed transmission effect can be realized; fundamentally solve this section of unsettled unguarded problem of extra large cable; also solve in conventional art simultaneously and adopt buried method construction inconvenience and secondary to draw brush problem; sandbag ballast is fixed insecure and secondary and is drawn brush problem, and the expensive problem of flexible protective pipe scheme.In addition, also fundamentally solve submarine cable and J-shaped pipe flared rim wear problem and follow-up secondary and wash away and repair problem again, the useful life of extra large cable is greatly improved, ensure that marine wind electric field reliability of operation and fail safe.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (4)
1. marine wind electric field current collection sea cable goes out the operator guards after I/J type pipe, it is characterized in that, comprises the concrete dense sealer bag be arranged at below unsettled section of extra large cable, concrete perfusion in described concrete dense sealer bag;
Be arranged at the grouting hole of described concrete dense sealer bag side, and multiple extra large cable clip be arranged side by side in described concrete dense sealer bag top.
2. marine wind electric field current collection according to claim 1 sea cable goes out the operator guards after I/J type pipe, and it is characterized in that, described concrete dense sealer bag is set to single or multiple lift, and described concrete dense sealer bag adopts fine and close wear-resisting resilient material to make.
3. marine wind electric field current collection according to claim 1 sea cable goes out the operator guards after I/J type pipe, and it is characterized in that, described grouting hole is arranged at described concrete dense sealer bag center side position, and described grouting hole has self sealss.
4. marine wind electric field current collection according to claim 1 sea cable goes out the operator guards after I/J type pipe, and it is characterized in that, described extra large cable clip is set to annular buckle-like, and described extra large cable clip adopts high-strength nylon band to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401586.2U CN204760980U (en) | 2015-06-09 | 2015-06-09 | Offshore wind farm current collection sea cable goes out protection architecture behind IJ type pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401586.2U CN204760980U (en) | 2015-06-09 | 2015-06-09 | Offshore wind farm current collection sea cable goes out protection architecture behind IJ type pipe |
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| CN204760980U true CN204760980U (en) | 2015-11-11 |
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| CN201520401586.2U Withdrawn - After Issue CN204760980U (en) | 2015-06-09 | 2015-06-09 | Offshore wind farm current collection sea cable goes out protection architecture behind IJ type pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934920A (en) * | 2015-06-09 | 2015-09-23 | 中国能源建设集团广东省电力设计研究院有限公司 | Protection method and protection structure for collecting submarine cable in offshore wind farm after penetrating out of I/J-shaped pipe |
| CN110778793A (en) * | 2019-11-21 | 2020-02-11 | 天津大学 | Laying type seawater pipeline system for ocean temperature difference energy power generation |
| CN112271650A (en) * | 2020-11-26 | 2021-01-26 | 江南云 | Cable tectorial membrane auxiliary device to regional erection line in deep sea |
-
2015
- 2015-06-09 CN CN201520401586.2U patent/CN204760980U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934920A (en) * | 2015-06-09 | 2015-09-23 | 中国能源建设集团广东省电力设计研究院有限公司 | Protection method and protection structure for collecting submarine cable in offshore wind farm after penetrating out of I/J-shaped pipe |
| CN104934920B (en) * | 2015-06-09 | 2018-01-05 | 中国能源建设集团广东省电力设计研究院有限公司 | The guard method and structure that marine wind electric field current collection extra large cable goes out after I/J type pipes |
| CN110778793A (en) * | 2019-11-21 | 2020-02-11 | 天津大学 | Laying type seawater pipeline system for ocean temperature difference energy power generation |
| CN112271650A (en) * | 2020-11-26 | 2021-01-26 | 江南云 | Cable tectorial membrane auxiliary device to regional erection line in deep sea |
| CN112271650B (en) * | 2020-11-26 | 2022-08-30 | 国网上海市电力公司 | Cable tectorial membrane auxiliary device to regional erection line in deep sea |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151111 Effective date of abandoning: 20180105 |
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| AV01 | Patent right actively abandoned |