CN105321602A - Offshore large capacity wind power generation cable - Google Patents
Offshore large capacity wind power generation cable Download PDFInfo
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- CN105321602A CN105321602A CN201410369310.0A CN201410369310A CN105321602A CN 105321602 A CN105321602 A CN 105321602A CN 201410369310 A CN201410369310 A CN 201410369310A CN 105321602 A CN105321602 A CN 105321602A
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- cable
- power generation
- wind power
- conductor
- wire cores
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses an offshore large capacity wind power generation cable which comprises a number of insulation wire cores. The insulation wire cores are mutually twisted into a cable. Each insulation wire core comprises a conductor, an insulation layer and a copper sleeve from the inside out. Each insulation layer is vacuum. A copper sleeve and a conductor are concentric. A number of isolation struts are connected between a conductor and a copper sleeve. Each isolation strut is made of plastics. The cable is coated by a waterproof tape, an inner sheath, a reinforcement layer and an outer sheath from the inside out. Gaps among the insulation wire cores are filled with carbon fiber composite mandrels. The inner sheath is made of high-foam polyethylene. The reinforcement layer is formed in a tinned copper wire and aramid yarn cross-woven structure. The outer sheath is made of polyether polyurethane. The offshore large capacity wind power generation cable provided by the invention has the advantages of high installed capacity, high tensile strength and good waterproof effect.
Description
Technical field
The present invention relates to a kind of marine Large Copacity cable for wind power generation.
Background technology
Along with the development of wind power generation; wind energy becomes new forms of energy with the fastest developing speed in world wide; offshore wind power generation embodies the highest level of current wind energy power technology; China's offshore wind energy resource rich reserves; East Coastal particularly tidal flat of Jiangsu Province and coastal waters has the condition of fabulous exploitation wind energy, and it has possessed the primary condition of scale exploitation.According to China Meteorological Administration's wind energy resources detailed survey initial achievements, the gross power recording the wind power generation of the 50 meters of height in more than greater coasting area within China's 5 meters to 25 meters water depth lines, sea level can reach about 200,000,000 kilowatts, and the gross power of wind power generation when being highly more than 70 meters can reach about 500,000,000 kilowatts.
Offshore wind farm is an important ring of China's new forms of energy strategy, plays an important role in enforcement energy-saving and emission-reduction planning and development strategy new industry." 12 " are the critical periods that China's offshore wind farm is layed foundation, and will build a collection of marine large-scale wind electricity project.In view of the Wind Power Project that installed capacity is large is built on sea level, need the capacity of the floating cable for wind power generation of supporting connection wind power equipment also large.
And the transmission power of existing offshore wind power generation cable is little, namely capacity is less, resistance to tension is weak, water resistance is poor, insulation electrical tree aging process and the problem such as water tree aging phenomenon is serious, can not meet offshore wind power generation used.
Summary of the invention
The technical problem to be solved in the present invention is that the transmission power in order to overcome offshore wind power generation cable in prior art is less, insulation electrical tree aging process and water tree aging phenomenon is serious, resistance to tension is more weak and water resistance is poor defect, provides a kind of marine Large Copacity cable for wind power generation.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of marine Large Copacity cable for wind power generation, comprise some insulated wire cores, described insulated wire cores is mutually stranded is a stranding, its feature is, each insulated wire cores comprises the conductor arranged from the inside to the outside, insulating barrier and copper sheathing, described insulating barrier is vacuum, described copper sheathing and described conductor are concentric structure, some isolation support bars are connected with between described conductor and described copper sheathing, described isolation support bar is plastic material, a waterstop is coated with successively from the inside to the outside outside described stranding, one inner sheath, one reinforced layer and an oversheath, carbon fiber composite core rod is filled with in gap between described insulated wire cores, the material of described inner sheath is highly foaming polyethylene, described reinforced layer is the braiding structure of tinned copper wire and aramid fiber yarn interlacing, the material of described oversheath is EU.
In this programme, adopt vacuum as insulating barrier, the dielectric coefficient due to vacuum is ε
0=8.86 х 10
-12f/m, the insulating barrier much smaller than existing cable is the dielectric coefficient of crosslinked polyethylene is the situation of 2.3F/m, and therefore the capacitance of vacuum insulation is little, and transmission capacity is large.In addition, adopt vacuum as during insulating barrier to conductor insulation without electrical tree aging process and water tree aging phenomenon, cable life is extended greatly.Filling carbon fiber composite core rod in the gap of insulated wire cores, makes cable have very strong resistance to tension.The combination of waterstop and highly foaming polyethylene inner sheath and EU oversheath makes cable have fabulous water resistance, greatly enhances the ability that cable adapts to complex environment.
Preferably, the Duplication of described waterstop is 10 ~ 15%.Duplication refers to that the part overlaped accounts for the ratio of whole waterstop.
Preferably, the density of described highly foaming polyethylene is 0.1g/cm
3.Highly foaming polyethylene is commercially, and namely described density refer to the weight of material in unit volume.
Preferably, the count of described braiding structure is more than or equal to 85%.Count refers to the density degree of tinned copper wire and aramid fiber yarn interlacing.
Preferably, the bunch lay ratio of described conductor is 14 ~ 16, and the multiple twisted wire lay ratio of described conductor is 6 ~ 8, and the stranded lay ratio of described insulated wire cores is 10 ~ 12.Wherein, bunch be by many single lines with a constant pitch according to same hank to twisted wire stranded together, multiple twisted wire carries out the stranded twisted wire of regular concentric type by bunch.The direction of lay of multiple twisted wire is general contrary with the direction of lay of bunch.Lay ratio is a definite value, and it refers to the ratio of pitch length and twisted wire external diameter.
Positive progressive effect of the present invention is: the marine Large Copacity cable for wind power generation of this programme has that transmission capacity is large, material-saving, energy consumption are low, water resistance good, resistance to tension is strong, insulating barrier is without the effect of electrical tree aging process and water tree aging phenomenon.
Accompanying drawing explanation
Fig. 1 is the structural representation of marine Large Copacity cable for wind power generation of the present invention.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
The present embodiment provides a kind of marine Large Copacity cable for wind power generation, as shown in Figure 1, comprise some insulated wire cores 1, described insulated wire cores is mutually stranded is a stranding, each insulated wire cores comprises the conductor 10 arranged from the inside to the outside, insulating barrier 11 and copper sheathing 13, insulating barrier 11 is vacuum, copper sheathing 13 and conductor 10 are in concentric structure, some isolation support bars 12 are connected with between conductor 10 and copper sheathing 13, isolation support bar 12 is plastic material, it adopts the isolation of hub-type even structure to arrange, contact to avoid conductor 10 and copper sheathing 13, a waterstop 3 is coated with from the inside to the outside successively outside stranding, one inner sheath 4, one reinforced layer 5 and an oversheath 6, carbon fiber composite core rod 2 is filled with in gap between insulated wire cores 1, the material of inner sheath 4 is highly foaming polyethylene, reinforced layer 5 is the braiding structure of tinned copper wire and aramid fiber yarn interlacing, the material of oversheath 6 is EU.
Wherein, carbon fiber composite core rod is carbon fiber and epoxy resin composite material composition, and the Duplication of waterstop is 10%, and the density of highly foaming polyethylene is 0.1g/cm
3, the count of braiding structure equals 85%, and the bunch lay ratio of conductor is 14, and the multiple twisted wire lay ratio of conductor is 6, and the stranded lay ratio of insulated wire cores is 10.
Contrast with existing offshore wind power generation cable, the marine Large Copacity cable for wind power generation of the present embodiment has that transmission capacity is large, material-saving, energy consumption are low, water resistance good, resistance to tension is strong, insulating barrier is without advantages such as electrical tree aging process and water tree aging phenomena.In order to characterize the effect of the relatively existing offshore wind power generation cable of the present embodiment, according to cable standard GB/T12706.2-2008, corresponding test has been carried out to the marine Large Copacity cable for wind power generation of the present embodiment, and provide offshore wind power generation cable of the prior art as a comparison case, the cable model of this comparative example is FDYJV, through contrast, the cable of the present embodiment can stand industrial frequency experiment voltage 30.5kV, continue the withstand voltage test of 5min, now cable is without puncturing, and the cable that comparative example is 1kV or 3kV will breakdownly be scrapped, also namely the cable of the present embodiment can stand higher voltage for a long time, make cable higher as the gross power of carrying during wind power generation, thus transmission capacity is larger.
And according to the regulation of annex F in standard GB/T12706.2-2008, the two ends drying recording the cable of the present embodiment is oozed out without moisture, and the cable two ends of comparative example obviously have the globule to ooze out.The water resistance of visible the present embodiment is better.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection scope of the present invention.
Claims (5)
1. a marine Large Copacity cable for wind power generation, comprise some insulated wire cores, described insulated wire cores is mutually stranded is a stranding, it is characterized in that, each insulated wire cores comprises the conductor arranged from the inside to the outside, insulating barrier and copper sheathing, described insulating barrier is vacuum, described copper sheathing and described conductor are concentric structure, some isolation support bars are connected with between described conductor and described copper sheathing, described isolation support bar is plastic material, a waterstop is coated with successively from the inside to the outside outside described stranding, one inner sheath, one reinforced layer and an oversheath, carbon fiber composite core rod is filled with in gap between described insulated wire cores, the material of described inner sheath is highly foaming polyethylene, described reinforced layer is the braiding structure of tinned copper wire and aramid fiber yarn interlacing, the material of described oversheath is EU.
2. marine Large Copacity cable for wind power generation as claimed in claim 1, is characterized in that, the Duplication of described waterstop is 10 ~ 15%.
3. marine Large Copacity cable for wind power generation as claimed in claim 1, is characterized in that, the density of described highly foaming polyethylene is 0.1g/cm
3.
4. the marine Large Copacity cable for wind power generation as described in claims 1 to 3 any one, it is characterized in that, the count of described braiding structure is more than or equal to 85%.
5. marine Large Copacity cable for wind power generation as claimed in claim 4, is characterized in that, the bunch lay ratio of described conductor is 14 ~ 16, and the multiple twisted wire lay ratio of described conductor is 6 ~ 8, and the stranded lay ratio of described insulated wire cores is 10 ~ 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369310.0A CN105321602A (en) | 2014-07-30 | 2014-07-30 | Offshore large capacity wind power generation cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369310.0A CN105321602A (en) | 2014-07-30 | 2014-07-30 | Offshore large capacity wind power generation cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105321602A true CN105321602A (en) | 2016-02-10 |
Family
ID=55248807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410369310.0A Pending CN105321602A (en) | 2014-07-30 | 2014-07-30 | Offshore large capacity wind power generation cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105321602A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257712A (en) * | 2018-03-12 | 2018-07-06 | 上海卡迪夫电缆有限公司 | A kind of industrial cable |
| CN108682483A (en) * | 2018-04-03 | 2018-10-19 | 昆山兴鸿蒙电子有限公司 | A kind of warning cable |
-
2014
- 2014-07-30 CN CN201410369310.0A patent/CN105321602A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257712A (en) * | 2018-03-12 | 2018-07-06 | 上海卡迪夫电缆有限公司 | A kind of industrial cable |
| CN108682483A (en) * | 2018-04-03 | 2018-10-19 | 昆山兴鸿蒙电子有限公司 | A kind of warning cable |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160210 |