CN110748463A - Deicing device for blades of offshore wind turbine - Google Patents
Deicing device for blades of offshore wind turbine Download PDFInfo
- Publication number
- CN110748463A CN110748463A CN201911127930.2A CN201911127930A CN110748463A CN 110748463 A CN110748463 A CN 110748463A CN 201911127930 A CN201911127930 A CN 201911127930A CN 110748463 A CN110748463 A CN 110748463A
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- Prior art keywords
- wind turbine
- blade
- pump
- turbine blade
- full
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- 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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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 239000013535 sea water Substances 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 230000008014 freezing Effects 0.000 claims abstract description 7
- 238000007710 freezing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 5
- 235000011187 glycerol Nutrition 0.000 claims abstract 8
- 239000007921 spray Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- -1 amino acid salt Chemical class 0.000 claims description 3
- 244000068988 Glycine max Species 0.000 claims description 2
- 235000010469 Glycine max Nutrition 0.000 claims description 2
- 241000209140 Triticum Species 0.000 claims description 2
- 235000021307 Triticum Nutrition 0.000 claims description 2
- 240000008042 Zea mays Species 0.000 claims description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 2
- 235000005822 corn Nutrition 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 210000000582 semen Anatomy 0.000 claims 3
- 238000010304 firing Methods 0.000 claims 1
- 150000002333 glycines Chemical class 0.000 claims 1
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention provides a deicing device for blades of an offshore wind turbine, and relates to the technical field of wind power generation. The blade surface mounting freezes and detects the sensor, and when the blade freezes, the full-automatic booster pump of inverter type receives the sensor signal of freezing signal of telecommunication and begins work, and the sea water that contains a certain proportion organic salt and biological glycerine in the water tank is through raceway pump to shower nozzle department. The high salinity seawater containing biological glycerol has no harm to marine organism environment, and has freezing point of-30 to-40 ℃ and higher ice melting performance. The control system provided with the color sensitive sensor has a simple structure, can effectively monitor the whole water spraying process, and realizes efficient and rapid deicing.
Description
Technical Field
The invention relates to a deicing device, in particular to a deicing device for blades of an offshore wind turbine, and belongs to the field of wind power generation.
Background
Most countries in the world where wind energy is well utilized are in cold climate areas or are subjected to cold climate conditions for a certain period of time each year, and nearly 20% of wind energy resources are in cold climate conditions. The problem of blade icing is not negligible when the offshore wind turbine is in a high-humidity environment. If the deicing can not be carried out in time, the service life of the wind turbine can be greatly reduced, so that the invention provides a novel offshore wind turbine blade deicing device aiming at the problems.
Disclosure of Invention
Aiming at the problem of severe icing of an offshore wind turbine, the blade deicing device for the offshore wind turbine is provided, high-salinity seawater containing biological glycerol is sprayed onto the surface of the blade, the mixed seawater with low freezing point and high ice melting performance is utilized, the ice on the surface of the blade is melted, sparse and blocked, the larger centrifugal force generated in the rotation process of a wind wheel can improve the deicing efficiency, and efficient and rapid deicing is realized.
The invention realizes the purpose through the following technical scheme: a deicing device for blades of an offshore wind turbine is characterized in that an icing sensor is fixed on the surface of each blade of the wind turbine and connected with a variable-frequency full-automatic booster pump fixed in seawater, the full-automatic booster pump is connected with a water delivery pipe, the water delivery pipe is connected with a water tank, the variable-frequency full-automatic booster pump is fixed in the water tank, a water delivery pipe support is fixed on an engine room, a spray nozzle is fixed on the water delivery pipe support, a color-sensitive sensor is fixed below a water outlet of the spray nozzle, the color-sensitive sensor detects color strips coated on the roots of the blades to enable the spray nozzle to be opposite to the blades, and a central control system of the wind turbine controls water spraying time according to icing.
The technical scheme of the invention is detailed as follows:
the utility model provides an offshore wind turbine blade defroster, includes wind turbine blade (1), its characterized in that: install additional on wind turbine blade (1) and detect icing sensor (2) of the condition of freezing to scribble black color stripe (4) at wind turbine blade (1) root, raceway support (15) are fixed in cabin (13), shower nozzle (16) are fixed in raceway support (15), install color sensitive sensor (3) in raceway support below for detect black color stripe (4) and realize that the shower nozzle is adjusted the blade well, raceway (12) are connected with full-automatic pressure boost 1 pump (101) of frequency conversion formula, and No. 2 pump (102) are fixed in water tank (9), water tank (9)) The bottom is connected with a variable-frequency full-automatic pressurization pump No. 1 (101) through a water delivery pipe, and a material box (11) is used for storing biological glycerol and organic salt and has the volume of 1-3 m3The solar energy booster pump is fixed on the inner wall of a tower (8), a platform (6) is built around the tower, and a solar cell panel (5) on the platform stores electric energy into a storage battery (14) so as to be used by the variable-frequency full-automatic booster pumps (101, 102).
Wherein, the lift of the frequency conversion type full-automatic booster pump is 10 m-65 m, preferably 20 m-50 m; the power is 0.37 KW-3 KW, preferably 1.5 KW-2 KW; the pressure is 0.1MPa to 0.65MPa, preferably 0.2MPa to 0.4 MPa.
Wherein, the volume of the water tank is 8m3～10m3The single-blade spraying time is 1-2 minutes.
Wherein, the added biological glycerol and organic salt ensure zero pollution to marine environment, and the freezing point of water is reduced to-30 to-40 ℃ after the biological glycerol and the organic salt are mixed according to the proportion of 3:5 to 6: 5; the biological glycerol comprises wheat, corn and soybean, and the organic salt comprises acetate and amino acid salt.
Wherein, the power is supplied by a solar panel, 1m2The power supply amount is about 120-140W per day, and the total power supply amount is 6-8 m2The solar cell panel.
Wherein, the spray range of the spray head is 0.4R m-0.8R m, R is the radius of the wind turbine blades of different models, and the flow is 0.5m3/h～0.68m3The range is 11-15 m, and the outlet pressure is 0.2-0.5 MPa.
The 24V and 40A storage battery needs 6-8 blocks.
The invention can spray seawater of organic salt and biological glycerol mixed according to a certain proportion to the blades of the wind turbine, so that the freezing point of the seawater is reduced to-30 ℃ to-40 ℃, and efficient and rapid deicing is realized on the premise of ensuring zero pollution to marine environment.
The invention has the beneficial effects that: the ice blocks can be well ablated by mixing the organic saline and the biological glycerol for deicing. The icing sensor detects whether the blade is iced or not and the position of icing, the color-sensitive sensor sprays water to realize accurate contraposition water spraying, and meanwhile, the whole deicing process can be monitored, and efficient and rapid deicing is realized.
Drawings
Fig. 1 is a general schematic of the present invention.
Fig. 2 is a diagram of the power supply system of the present invention.
FIG. 3 is a view of the position of the blade facing the nozzle of the present invention.
FIG. 4 is a schematic diagram of the operation of the present invention for deicing the blades.
The numbers in the figures illustrate the following:
1. a blade; 2. an icing sensor; 3. a color sensitive sensor; 4. color bars; 5. a solar panel;
6. a platform; 7. seawater; 8. a tower; 9. a water tank; 101. a variable-frequency full-automatic supercharging pump No. 1;
102 frequency conversion type full-automatic booster pump No. 2; 11. a material box; 12. a water delivery pipe; 13. a nacelle;
14. a storage battery; 15. a water delivery pipe bracket; 16. spray head
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described examples are only a part of the embodiments of the present invention, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a deicing method for a deicing device of a blade of an offshore wind turbine is that 6 icing sensors (2) are uniformly arranged on the surface of the blade (1) of the wind turbine at a position of 0.4R to 0.8R along the span direction of the blade (1), and the total number of the 3 blades is 18. 6-8 m2The solar energy storage that solar cell panel (5) produced in 6 ~ 8 batteries (14) of 24V,40A of establishing ties to provide sufficient electric quantity and supply full-automatic pressure boost No. 1 pump of inverter type (101) and full-automatic pressure boost No. 2 pump of inverter type (102) to use, the booster pump model is lift 40m, and power is 1.5KW, and outlet pressure is 0.3 MPa.
Step one, an icing signal is transmitted to a central control system of the wind turbine, a sensor signal is less than 6, the icing is not serious, and the wind turbine operates normally; when the icing signal is more than or equal to 6, the icing is serious, the central control system sends out an deicing instruction, and the wind turbine is shut down.
Step two, after the frequency conversion type full-automatic supercharging No. 1 pump (101) receives the instruction of the central control system, the seawater is pumped into the water tank (9) through the water conveying pipe (12) to reach the capacity of the water tank of 5m3And the rear frequency conversion type full-automatic supercharging pump No. 1 (101) stops working.
And step three, after receiving the capacity signal of the water tank, the central control system of the wind turbine controls a material tank (11) to open a material port, and biological glycerol and organic salt mixed according to the ratio of 6:5 are poured into the water tank.
And fourthly, the motor of the wind turbine drives the wind wheel to rotate until the color-sensitive sensor (3) fixed below the water outlet detects the color bar (4) at the blade root of the blade, which indicates that the blade is over against the spray head.
And step five, the variable-frequency full-automatic booster No. 2 pump (102) starts to work, seawater is conveyed to a spray head (16) fixed on the pipe bracket (15) through the water conveying pipe (12), the spray head starts to spray water, and the water spraying is stopped after the spraying time reaches 2 minutes.
And sixthly, repeating the first step to the fifth step, deicing the second blade and the third blade, and finishing the deicing after 2 minutes of each injection.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides an offshore wind turbine blade defroster, includes wind turbine blade (1), its characterized in that: install additional on wind turbine blade (1) and detect sensor (2) that freezes of condition to at wind turbine blade (1) root scribble black color strip (4), raceway support (15) are fixed in cabin (13), shower nozzle (16) are fixed in raceway support (15), install color sensitive sensor (3) in raceway support below for detect black color strip (4) and realize that the shower nozzle is adjusted the blade well, raceway (12) are connected with full-automatic pressure boost 1 pump of frequency conversion (101), full-automatic pressure boost 2 pump of frequency conversion (102) are fixed in water tank (9), the water tank bottom is connected with full-automatic pressure boost 1 pump of frequency conversion (101) through the raceway, material case (11) for storage biological glycerine and organic salt, volume 1 ~ 3m3The solar energy storage type variable frequency full-automatic supercharging device is fixed on the inner wall of a tower (8), a platform (6) is built around the tower, and a solar cell panel (5) on the platform stores electric energy into a storage battery (14) so as to be used by a variable frequency full-automatic supercharging pump No. 1 (101) and a variable frequency full-automatic supercharging pump No. 2 (102).
2. An offshore wind turbine blade deicing device according to claim 1, characterized in that: the lift of the frequency conversion type full-automatic supercharging pump No. 1 and the pump No. 2 is 10 m-65 m, preferably 20 m-50 m; the power is 0.37 KW-3 KW, preferably 1.5 KW-2 KW; the pressure is 0.1MPa to 0.65MPa, preferably 0.2MPa to 0.4 MPa.
3. An offshore wind turbine blade deicing device according to claim 2, characterized in that: the lift of the variable-frequency full-automatic booster pump No. 1 and the pump No. 2 is 20 m-50 m; the power is 1.5 KW-2 KW; the pressure is 0.2MPa to 0.4 MPa.
4. An offshore wind turbine blade deicing device according to claim 1, characterized in that: volume of water tank is 8m3～10m3The single-blade spraying time is 1-2 minutes.
5. An offshore wind turbine blade deicing device according to claim 1, characterized in that: biological glycerol and organic salt are added to ensure zero pollution to the marine environment, and the freezing point of water is reduced to minus 30 ℃ to minus 40 ℃ after the biological glycerol and the organic salt are mixed according to the proportion of 3: 5-6: 5; the biological glycerol comprises wheat, corn and soybean, and the organic salt comprises acetate and amino acid salt.
6. An offshore wind turbine blade deicing device according to claim 5, characterized in that: the biological glycerol comprises semen Tritici Aestivi, semen Maydis, and semen glycines; the organic salt comprises acetate and amino acid salt.
7. An offshore wind turbine blade deicing device according to claim 1, characterized in that: the solar cell panel is used for supplying power, and the solar cell panel with the square meter of 6-8 is needed.
8. An offshore wind turbine blade deicing device according to claim 1, characterized in that: the spray range of the spray head is 0.4R m-0.8R m, R is the radius of wind turbine blades of different models, and the flow rate is 0.5m3/h～0.68m3The firing range is 11-15 meters, and the pressure is 0.2-0.5 MPa.
9. An offshore wind turbine blade deicing device according to claim 1, characterized in that: 6-8 storage batteries of 24V and 40A are needed.
10. A method of using an offshore wind turbine blade de-icing apparatus according to claim 1, wherein:
step one, an icing signal is transmitted to a central control system of the wind turbine, the central control system sends out an deicing instruction, and the wind turbine stops working;
step two, after the frequency conversion type full-automatic supercharging pump No. 1 receives the instruction of the central control system, seawater is pumped into the water tank through the water conveying pipe, and the frequency conversion type full-automatic supercharging pump No. 1 stops working after the capacity of the water tank is reached;
step three, after receiving the capacity signal of the water tank, the central control system of the wind turbine controls the material tank to open the material port, and the mixed biological glycerol and organic salt are poured into the water tank;
fourthly, the motor of the wind turbine drives the wind wheel to rotate until the color-sensitive sensor fixed below the water outlet detects the color strips at the blade root of the blade, which indicates that the blade is over against the spray head;
step five, the frequency conversion type full-automatic supercharging pump No. 2 starts to work, seawater is conveyed to a spray head fixed on the pipe bracket through a water conveying pipe, the spray head starts to spray water, and the water spraying is stopped after the spraying time reaches 2 minutes;
and sixthly, repeating the first step to the fifth step, deicing the second blade and the third blade, and finishing the deicing after 2 minutes of each injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127930.2A CN110748463A (en) | 2019-11-18 | 2019-11-18 | Deicing device for blades of offshore wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127930.2A CN110748463A (en) | 2019-11-18 | 2019-11-18 | Deicing device for blades of offshore wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110748463A true CN110748463A (en) | 2020-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911127930.2A Pending CN110748463A (en) | 2019-11-18 | 2019-11-18 | Deicing device for blades of offshore wind turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN110748463A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502910A (en) * | 2020-05-26 | 2020-08-07 | 上海电机学院 | Multipurpose fan blade system |
| CN111828265A (en) * | 2020-06-24 | 2020-10-27 | 湖北龙源新能源有限公司 | Wind turbine generator blade deicing device and method |
| CN112922793A (en) * | 2021-03-02 | 2021-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Efficient deicing device for blades of wind turbine generator |
| CN117782973A (en) * | 2024-02-23 | 2024-03-29 | 易事特智能化系统集成有限公司 | Wind turbine blade surface ice adhesion strength measuring device |
| CN117782973B (en) * | 2024-02-23 | 2024-05-28 | 易事特智能化系统集成有限公司 | Wind turbine blade surface ice adhesion strength measuring device |
-
2019
- 2019-11-18 CN CN201911127930.2A patent/CN110748463A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502910A (en) * | 2020-05-26 | 2020-08-07 | 上海电机学院 | Multipurpose fan blade system |
| CN111828265A (en) * | 2020-06-24 | 2020-10-27 | 湖北龙源新能源有限公司 | Wind turbine generator blade deicing device and method |
| CN112922793A (en) * | 2021-03-02 | 2021-06-08 | 中国华能集团清洁能源技术研究院有限公司 | Efficient deicing device for blades of wind turbine generator |
| CN117782973A (en) * | 2024-02-23 | 2024-03-29 | 易事特智能化系统集成有限公司 | Wind turbine blade surface ice adhesion strength measuring device |
| CN117782973B (en) * | 2024-02-23 | 2024-05-28 | 易事特智能化系统集成有限公司 | Wind turbine blade surface ice adhesion strength measuring device |
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