CN105863972A - Automatic anti-icing deicing system and anti-icing deicing method for fan blade - Google Patents
Automatic anti-icing deicing system and anti-icing deicing method for fan blade Download PDFInfo
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- CN105863972A CN105863972A CN201610382608.4A CN201610382608A CN105863972A CN 105863972 A CN105863972 A CN 105863972A CN 201610382608 A CN201610382608 A CN 201610382608A CN 105863972 A CN105863972 A CN 105863972A
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- icing
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- fan blade
- deicing
- blade
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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
- 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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Abstract
The invention discloses an automatic anti-icing deicing system and an anti-icing deicing method for a fan blade. The automatic anti-icing deicing system for the fan blade comprises an icing analytic unit, a standing wave deicing unit, a traveling wave anti-icing unit, a vibration frequency sensing unit and a control unit, wherein the icing analytic unit, the standing wave deicing unit, the traveling wave anti-icing unit and the vibration frequency sensing unit are arranged in the fan blade, and the icing analytic unit, the standing wave deicing unit, the traveling wave anti-icing unit and the vibration frequency sensing unit are respectively connected with the control unit. The automatic anti-icing deicing system and the anti-icing deicing method for the fan blade have the advantages that icing condition of the fan blade can be rapidly and accurately determined; further ice blocks on the fan blade can be timely and automatically removed; and anti-icing treatment can be automatically carried out, so that serious icing on the fan blade is prevented, and normal operation of a fan is guaranteed.
Description
Technical field
The present invention relates to a kind of fan blade automatic anti-icing and deicing system and anti-icing and deicing method.
Background technology
Wind power generating set is generally mounted to the raw areas such as the abundant high mountain of wind-resources and borderland, and blade ice formation issues becomes
For one of hidden trouble affecting its safe operation.It is to affect Wind turbine that fan blade icing causes blade aerodynamic profile to change
One of principal element of security reliability, during a large amount of icing of blade, Wind turbine efficiency reduces, and unit power output reduces, and has
Wind turbine non-programmed halt may be caused, affect the safe and stable operation of network system.Blade also will be caused during serious icing
Fractureing and unit is damaged, under rotation status, ice sheet comes off and easily causes operation accident simultaneously.According to whole nation wind energy turbine set installed capacity
Statistics, in base, the unit of 92.7% is in easy ice field, and therefore wind electricity blade has become China energetically except freezing freezing proof technique
Development wind-power electricity generation needs the technical barrier that emphasis is captured.
The patent of invention of Publication No. CN102562479A discloses a kind of fan blade deicing system and method thereof, uses
The deicing system that the deicing assembly of temperature transducer, control system, air exhauster and heater composition is constituted.The method needs to consume
A large amount of electric energy produce heat, account for the 6% ~ 12% of wind-driven generator gross generation.Due to blade temperature tolerance requirement, heating power deicing
System usually cycling service, exist icing accumulation and ice-melt freezeout again, water ice depart from fly also will to wind energy conversion system its
Remaining part part causes the potential danger side of body.And this system only has deicing effect, it is impossible to reach anti-icing effect on the basis of energy-conservation.Open
Number disclose a kind of automatic anti-icing and de-icing device of fan blade for the utility model of CN 202718816U, use blade windward side
The device that surface temperature detection piece and/or blade lee face temperature detection part, leaf position determination component etc. are constituted.This device leads to
The temperature crossing detection blade surface judges whether to freeze, and the less area of the method water yield in atmosphere can not judge low completely
Under the conditions of temperature fan blade can icing phenomenon, and be that the method using heating carries out deicing, power consumption is big.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention is to provide a kind of simple in construction, accurately can judge with relatively low cost
Fan blade freezes, and automatically carries out a kind of fan blade automatic anti-icing and deicing system and the anti-icing and deicing method of deicing.
The technical solution used in the present invention is: a kind of fan blade automatic anti-icing and deicing system, and it mainly includes freezing solving
Analysis unit, standing wave deicing unit, the anti-icing unit of row ripple, vibration frequency sensing unit, control unit, it is characterised in that: freeze and solve
Analysis unit, standing wave deicing unit, the anti-icing unit of row ripple, vibration frequency sensing unit are arranged in fan blade, and freezing, it is single to resolve
Unit, standing wave deicing unit, the anti-icing unit of row ripple, vibration frequency sensing unit are connected with control unit respectively.
In above-mentioned fan blade automatic anti-icing and deicing system, described icing resolution unit includes that piezoelectric ceramics harmonic wave swashs
Shake device I and line I；Piezoelectric ceramics harmonic wave vibrator I is arranged on the madial wall of blade, by line I with control unit even
Connect.
In above-mentioned fan blade automatic anti-icing and deicing system, described standing wave deicing unit includes that piezoelectric ceramics harmonic wave swashs
Shake device II and line II；Piezoelectric ceramics harmonic wave vibrator II is arranged on the madial wall of blade, by line II and control unit
Connect.
In above-mentioned fan blade automatic anti-icing and deicing system, the described anti-icing unit of row ripple includes that piezoelectric ceramics harmonic wave disappears
Can device, line III；Described piezoelectric ceramics harmonic wave sinker is arranged on the madial wall of blade, by line III and control unit
Connect.
In above-mentioned fan blade automatic anti-icing and deicing system, described vibration frequency sensing unit includes acceleration sensing
Device and line IV；Described acceleration transducer is arranged on the madial wall of blade, is connected with control unit by line IV.
A kind of automatic anti-icing and deicing method of fan blade, comprises the steps:
1) under not up to ice-formation condition, icing resolution unit sends accumulation signal, vibration frequency sensing unit and control unit
Calculate the vibration frequency of fan blade and compared with the eigentone of fan blade, if the substantially uniform judgement of numerical value
Whether fan blade freezes；
2) when judging that fan blade freezes, start standing wave deicing unit, form standing wave, due to the ice being attached on fan blade
There is shearing force and tension in block, then ice cube is broken comes off, and reaches deicing effect；
3) after standing wave deicing cell operation a period of time, control unit controls icing resolution unit and again sends accumulation signal,
Judge whether blade freezes by step 1)；Judge when blade freezes, then continue step 2) operation, it is judged that when blade does not freezes, control
The unit starting anti-icing unit of row ripple processed, makes fan blade vibration produce row ripple, and the water droplet on fan blade makees elliptic motion, it is impossible to
It is parked on fan blade icing, reaches anti-icing effect.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention uses icing resolution unit, standing wave deicing unit, the anti-icing unit of row ripple, vibration frequency sensing unit and controls single
Unit etc. jointly controls and carries out the automatic anti-icing and deicing of fan blade, overcome can not be the most anti-icing under energy saving condition defect, this
Invention has compared to existing technology:
1) present invention has simple in construction, and volume is little, lightweight, advantage easy for installation；
2) present invention can quick and precisely determine fan blade icing conditions；And then the ice on timely automated removing fan blade
Block；And can automatically carry out anti-icing process；Prevent the appearance of serious icing phenomenon on fan blade, it is ensured that blower fan is just
Often run.
3) present invention uses standing wave deicing, energy-conservation.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the present invention.
Fig. 2 is the topology layout schematic diagram of the present invention.
Shown in figure mark as follows: 1 icing resolution unit, 2 standing wave deicing unit, the 3 anti-icing unit of row ripple, 4
Vibration frequency sensing unit, 5 control units, 6 fan blades, 7 piezoelectric ceramics harmonic wave vibrator I, 8 lines I, 9
Piezoelectric ceramics harmonic wave vibrator II, 10 line II, 11 line III, 12 piezoelectric ceramics harmonic wave sinker, 13 acceleration
Sensor, 14 lines IV.
Detailed description of the invention
The present invention is further detailed explanation below in conjunction with the accompanying drawings.
The core of the present invention is to provide a kind of blade anti-icing and deicing system for wind power generating set, and it can be accurately
Detect and judge blade ice condition, and the timely automated deicing of energy, finally the most anti-icing process in the case of energy-conservation, have
The reliability of higher detection ice-removing and ice-preventing.In order to make those skilled in the art be more fully understood that technical scheme,
Below in conjunction with the accompanying drawings 1 and accompanying drawing 2 and specific implementation method the present invention is described in further detail.
As it is shown in figure 1, the fan blade of the present invention automatic anti-icing and deicing system, including icing resolution unit 1, standing wave deicing
Unit 2, the anti-icing unit of row ripple 3, vibration frequency sensing unit 4, control unit 5, it is characterised in that: icing resolution unit 1, standing wave
Deicing unit 2, the anti-icing unit of row ripple 3, vibration frequency sensing unit 4 are arranged in fan blade 6, icing resolution unit 1, standing wave
Deicing unit 2, the anti-icing unit of row ripple 3, vibration frequency sensing unit 4 are connected with control unit 5 respectively.
As in figure 2 it is shown, described icing resolution unit 1 includes piezoelectric ceramics harmonic wave vibrator I 7 and line I 8, piezoelectricity is made pottery
Porcelain harmonic wave vibrator I 7 is arranged in blade 6, is connected with control unit 5 by line I 8.Described standing wave deicing unit 2 wraps
Including piezoelectric ceramics harmonic wave vibrator II 9 and line II 10, piezoelectric ceramics harmonic wave vibrator II 9 is arranged in blade 6, passes through
Line II 10 is connected with control unit 5.The described anti-icing unit of row ripple 3 includes piezoelectric ceramics harmonic wave sinker 12, line
III 11, described piezoelectric ceramics harmonic wave sinker 12 is arranged in blade 6, is connected with control unit 5 by line III 11.
Described vibration frequency sensing unit 4 includes that acceleration transducer 13 and line IV 14, described acceleration transducer 13 are pacified
It is contained in blade 6, is connected with control unit 5 by line IV 14.Piezoelectric ceramics harmonic wave vibrator I 7, piezoelectric ceramics harmonic wave
Vibrator II 9, piezoelectric ceramics harmonic wave sinker 12 and acceleration transducer 13 are arranged on the madial wall of blade 6；It is positioned at blower fan
At the maximum cross-section of blade 6.
The automatic anti-icing and deicing method of fan blade of the present invention, comprises the steps:
1) under the non-ice-formation condition of fan blade 6, control unit 5 sends the signal of telecommunication at set intervals and starts the parsing that once freezes
Unit 1, by line I 8, piezoelectric ceramics harmonic wave vibrator I 7 exciting fan blade 6, makes fan blade 6 produce vibration.Now,
The acceleration transducer 13 of vibration frequency sensing unit 4 passes through line 14 by the vibration frequency data transfer of fan blade 6 to control
Unit 5 processed, compared with fan blade 6 inherent frequency numerical value of storage inner with control unit 5, during beyond certain numerical value, it is determined that
Fan blade 6 freezes, and carries out next step, otherwise, continues this step.
2) judging when fan blade 6 freezes, control unit 5 controls to start standing wave deicing unit 2, by line I 8, pressure
Electroceramics harmonic wave vibrator I 7 harmonic wave exciting fan blade 6, makes fan blade 6 harmonic vibration, and control unit 5 is by even simultaneously
Line II 10 sends the signal of telecommunication, and piezoelectric ceramics harmonic wave vibrator II 9 is with same frequency, the harmonic wave exciting fan blade of same amplitude
6, make fan blade 6 harmonic vibration, this two harmonic wave forms standing wave, to the ice cube effect shear stress being attached on fan blade 6 and drawing
Stress, makes ice cube crush and comes off, reach deicing effect.
3), after standing wave deicing unit 2 works a period of time, control unit 5 controls to start icing resolution unit 1, performs step
1), it may be judged whether freeze；It is then to repeat step 2), no, control unit 5 then starts the anti-icing unit of row ripple 3, by line I 8,
Piezoelectric ceramics harmonic wave vibrator I 7 harmonic wave exciting fan blade 6, makes fan blade 6 harmonic vibration, and now piezoelectric ceramics harmonic wave disappears
Energy dissipating can be deformed along with harmonic vibration by device 12, produce row wave effect, make the water droplet attached on fan blade 6 make elliptic motion and
Icing cannot be parked on fan blade 6, drop the most voluntarily, reach energy-conservation anti-icing effect.
Claims (6)
1. a fan blade automatic anti-icing and deicing system, prevents including icing resolution unit (1), standing wave deicing unit (2), row ripple
Ice unit (3), vibration frequency sensing unit (4) and control unit (5), it is characterised in that: icing resolution unit (1), standing wave remove
Ice unit (2), the anti-icing unit of row ripple (3), vibration frequency sensing unit (4) are arranged in fan blade (6), icing resolution unit
(1), standing wave deicing unit (2), the anti-icing unit of row ripple (3), vibration frequency sensing unit (4) are connected with control unit (5) respectively.
A kind of fan blade automatic anti-icing and deicing system the most according to claim 1, it is characterised in that: described icing solution
Analysis unit (1) includes piezoelectric ceramics harmonic wave vibrator I (7) and line I (8)；Piezoelectric ceramics harmonic wave vibrator I (7) is arranged on
On the madial wall of blade (6), it is connected with control unit (5) by line I (8).
A kind of fan blade automatic anti-icing and deicing system the most according to claim 2, it is characterised in that: described standing wave removes
Ice unit (2) includes piezoelectric ceramics harmonic wave vibrator II (9) and line II (10)；Piezoelectric ceramics harmonic wave vibrator II (9) is installed
On the madial wall of blade (6), it is connected with control unit (5) by line II (10).
A kind of fan blade automatic anti-icing and deicing system the most according to claim 3, it is characterised in that: described row ripple is prevented
Ice unit (3) includes piezoelectric ceramics harmonic wave sinker (12), line III (11)；Described piezoelectric ceramics harmonic wave sinker (12)
It is arranged on the madial wall of blade (6), is connected with control unit (5) by line III (11).
A kind of fan blade automatic anti-icing and deicing system the most according to claim 4, it is characterised in that: described vibration frequency
Rate sensing unit (4) includes acceleration transducer (13) and line IV (14)；Described acceleration transducer (13) is arranged on
On the madial wall of blade (6), it is connected with control unit (5) by line IV (14).
6. anti-icing the removing of the fan blade automatic anti-icing and deicing system utilized in claim 1-5 described in any claim
Ice method, comprises the steps:
1) under not up to ice-formation condition, icing resolution unit (1) sends accumulation signal, vibration frequency sensing unit (4) and control
Unit processed (5) calculates the vibration frequency of fan blade (6) and compared with the eigentone of fan blade (6), it is judged that
Whether fan blade (6) freezes；Determine when fan blade (6) freezes, carry out next step, otherwise, continue this step；
2) when judging that fan blade (6) freezes, start standing wave deicing unit (2), form standing wave, owing to being attached to fan blade
(6) there is shearing force and tension in the ice cube on, then ice cube is broken comes off, and reaches deicing effect；
3) after standing wave deicing unit (2) work a period of time, control unit (5) controls icing resolution unit (1) and again sends
By step 1), accumulation signal, judges whether blade freezes；Judge when blade freezes, then continue step 2) operation, it is judged that blade is not
During icing, control unit (5) starts the anti-icing unit of row ripple (3), makes fan blade (6) vibration produce row ripple so that fan blade
(6) water droplet on makees elliptic motion, it is impossible to is parked in the upper icing of fan blade (6), reaches anti-icing effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382608.4A CN105863972B (en) | 2016-06-02 | 2016-06-02 | A kind of automatic anti-icing and deicing system of fan blade and anti-icing and deicing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382608.4A CN105863972B (en) | 2016-06-02 | 2016-06-02 | A kind of automatic anti-icing and deicing system of fan blade and anti-icing and deicing method |
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| Publication Number | Publication Date |
|---|---|
| CN105863972A true CN105863972A (en) | 2016-08-17 |
| CN105863972B CN105863972B (en) | 2019-08-02 |
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|---|---|---|---|
| CN201610382608.4A Active CN105863972B (en) | 2016-06-02 | 2016-06-02 | A kind of automatic anti-icing and deicing system of fan blade and anti-icing and deicing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100802A (en) * | 2017-04-26 | 2017-08-29 | 浙江运达风电股份有限公司 | A kind of wind generator set blade ice carries operation safety control method and system |
| CN107781121A (en) * | 2016-08-25 | 2018-03-09 | 北京金风科创风电设备有限公司 | Blade deicing control method and device and deicing system of wind driven generator |
| CN108644072A (en) * | 2018-05-03 | 2018-10-12 | 天津瑞源电气有限公司 | The deicer and its method of wind power generating set blade |
| CN110736382A (en) * | 2019-10-21 | 2020-01-31 | 珠海格力电器股份有限公司 | Deicing device, heat exchanger and compressor |
| CN112673169A (en) * | 2018-09-19 | 2021-04-16 | 西门子歌美飒可再生能源创新与技术有限公司 | Ice detection method and system for wind turbines |
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| WO2012000509A2 (en) * | 2010-06-30 | 2012-01-05 | Vestas Wind Systems A/S | Wind turbine system for detection of blade icing |
| CN202501916U (en) * | 2012-04-01 | 2012-10-24 | 长沙理工大学 | Wind Turbine Blade Icing State Monitoring Device Based on Vibration Detection |
| CN203452982U (en) * | 2013-08-01 | 2014-02-26 | 东北农业大学 | Combined mechanism of icing detection and deicing operation for wind turbine blade |
| CN205677768U (en) * | 2016-06-02 | 2016-11-09 | 湖南科技大学 | A kind of automatic anti-icing and de-icing device of fan blade |
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| CN101525053A (en) * | 2008-03-05 | 2009-09-09 | 哈特奇桑公司 | Anti-icing/de-icing system and method and plane using the same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781121A (en) * | 2016-08-25 | 2018-03-09 | 北京金风科创风电设备有限公司 | Blade deicing control method and device and deicing system of wind driven generator |
| CN107100802A (en) * | 2017-04-26 | 2017-08-29 | 浙江运达风电股份有限公司 | A kind of wind generator set blade ice carries operation safety control method and system |
| CN107100802B (en) * | 2017-04-26 | 2023-10-03 | 浙江运达风电股份有限公司 | Method and system for controlling ice-carrying operation safety of blades of wind generating set |
| CN108644072A (en) * | 2018-05-03 | 2018-10-12 | 天津瑞源电气有限公司 | The deicer and its method of wind power generating set blade |
| CN112673169A (en) * | 2018-09-19 | 2021-04-16 | 西门子歌美飒可再生能源创新与技术有限公司 | Ice detection method and system for wind turbines |
| CN110736382A (en) * | 2019-10-21 | 2020-01-31 | 珠海格力电器股份有限公司 | Deicing device, heat exchanger and compressor |
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| Publication number | Publication date |
|---|---|
| CN105863972B (en) | 2019-08-02 |
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