CN202451373U - Heat-assisted ultrasonic combined deicing device - Google Patents
Heat-assisted ultrasonic combined deicing device Download PDFInfo
- Publication number
- CN202451373U CN202451373U CN201120553941XU CN201120553941U CN202451373U CN 202451373 U CN202451373 U CN 202451373U CN 201120553941X U CN201120553941X U CN 201120553941XU CN 201120553941 U CN201120553941 U CN 201120553941U CN 202451373 U CN202451373 U CN 202451373U
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- ultrasonic
- layer thickness
- blade
- ice layer
- ice
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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 utility model discloses a heat-assisted ultrasonic combined deicing device, which comprises a wind power generator blade, an automatic control device, an auxiliary electric heating device, an ultrasonic high-frequency oscillation device, an outdoor environment temperature sensor and a blade surface ice-layer thickness test instrument; the auxiliary electric heating device comprises an electric heating power supply and an electric heating plate, and the ultrasonic high-frequency oscillation device comprises an ultrasonic generator and an ultrasonic transducer; and the automatic control device controls the ultrasonic generator to work according to a temperature signal fed back by the outdoor environment temperature sensor and an ice-layer thickness signal fed back by the blade surface ice-layer thickness test instrument and controls the auxiliary electric heating device to work according to the ice-layer thickness signal fed back by the blade surface ice-layer thickness test instrument and a duration of the ultrasonic generator. The heat-assisted ultrasonic combined deicing device can effectively eliminate the ice layer on the surface of a blade, and is simple, high efficient, safe and reliable, the safe running of the wind power generator unit in winter is ensured, and the running efficiency of the wind power generator unit in winter is improved.
Description
Technical field
The utility model relates to a kind of hot auxiliary ultrasonic associating deicer, is mainly used in the wind power plant anti-icing, the deicing of generator blade and handles, and belongs to that equipment is anti-icing, the deicing field.
Background technique
Wind-power electricity generation is the principal mode of Wind Power Utilization, yet for the wind power generating set that the wind power generating set of winter operation especially is installed in clammy area, it is one of principal element that influences wind energy conversion system efficient and safety reliability that blade freezes.During a large amount of icing of blade, can have a strong impact on its aerodynamic characteristic, the efficient of wind energy conversion system is reduced, the output power of unit reduces; Also will cause the wind power generating set disorderly closedown during serious icing, influence the safe and stable operation of network system.Yet, also there is not effectively ripe blade deicing technology at present, generally be to adopt the mode deicing of shutting down, had a strong impact on the stability of operation of power networks.Therefore, seek that effective blade is anti-icing, de-icing method has important engineering application value.And ultrasound has mechanical effect as a kind of form of energy when in solid dielectric, propagating, and can produce high frequency oscillation, and this high frequency oscillation can produce great shear forces at the bonding interface place of different material, makes separating substances.
The model utility content
The purpose of the utility model is the deficiency to existing blade of wind-driven generator deicing technology; A kind of hot auxiliary ultrasonic associating deicer is proposed; This device can be removed the ice sheet of blade surface in real time effectively, and is simple efficient, safe and reliable; Thereby guaranteed the safe operation of wind power generating set in winter, improved the operational efficiency of wind power generating set in winter.
For realizing above technical purpose, the utility model will be taked following technological scheme:
A kind of hot auxiliary ultrasonic associating deicer comprises blade of wind-driven generator, automatic controller, auxiliary electric heater unit, ultrasound high frequency oscillating apparatus, is used to the blade surface ice layer thickness testing instrument that detects the outdoor environment temperature sensor of ambient temperature and be used to detect the blade of wind-driven generator ice layer thickness; Auxiliary electric heater unit comprises electric heating power supply and the electrical heater plater that is connected with the electric heating power supply; The ultrasonic transducer that the ultrasound high frequency oscillating apparatus comprises ultrasonic generator and is connected with ultrasonic generator through conjunction cable, and ultrasonic transducer and electrical heater plater are fixedly mounted on the internal surface of blade of wind-driven generator alternately; The blade ice layer thickness signal that temperature signal that automatic controller is fed back according to the outdoor environment temperature sensor and blade surface ice layer thickness testing instrument are fed back is controlled the startup/stop of ultrasonic generator automatically, and the continuous working period of the blade ice layer thickness signal that fed back according to blade surface ice layer thickness testing instrument of automatic controller and ultrasonic generator is controlled the startup/stop of auxiliary electric heater unit automatically.
Said blade surface ice layer thickness testing instrument is a ultrasonic thickness gage.
The all rectangular array distribution of said ultrasonic transducer and electrical heater plater.
Said ultrasonic transducer is a piezoelectric constant disk transducer; And electrical heater plater is square mica electrical heater plater.
According to above technological scheme, compared with prior art, the utlity model has following advantage:
1, the utility model has effectively remedied the deficiency that existing wind-driven generator is shut down deicing, can carry out effective deicing in real time, need not to shut down.Through adding the ultrasound of certain intensity and frequency, produce high frequency oscillation at blade surface, overcome the adhesion strength of ice sheet at blade surface; Destroy the ice sheet structure, effectively remove the blade surface ice sheet, can be under non-stop-machine situation; The normal operation that keeps wind-driven generator improves energy utilization rate.
2, the utility model adopts the mode of hot auxiliary ultrasonic deicing; Effectively under the situation of deicing, adopt auxiliary electrically heated mode at ultrasound, only need to add few heat; Only melt one deck ice crystal at ice sheet and blade bonding interface place; Reduce the adhesion strength of ice sheet at blade surface, hyperacoustic in addition mechanism utilizes hyperacoustic high frequency oscillation to remove ice sheet simultaneously.Compare with existing hot deicing mode of melting ice sheet fully, only need to consume few heat and just can accomplish whole ice detachment, energy-efficient.
3, equipment is simple, and is easy to operate, can be to the too much weight of the extra increase of blade.
Description of drawings
Fig. 1 is the hot auxiliary ultrasonic associating of a utility model deicer schematic representation
Fig. 2 is that the utility model blade internal surface ultrasonic transducer and electrical heater plater are arranged schematic representation;
Fig. 3 is the utility model de-icing method control flow chart;
Among the figure: 1, ultrasonic generator, 2, conjunction cable, 3, some ultrasonic transducers, 4, the auxiliary electrical heating system, 5, the outdoor environment temperature sensor, 6, blade surface ice layer thickness testing instrument.
Embodiment
Accompanying drawing discloses the structural representation of the related preferred embodiment of the utility model without limitation; Below will combine accompanying drawing that the technological scheme of the utility model at length is described.
Like Fig. 1, shown in Figure 2; The said hot auxiliary ultrasonic associating deicer of the utility model; Comprise blade of wind-driven generator, automatic controller, auxiliary electric heater unit, ultrasound high frequency oscillating apparatus, be used to the blade surface ice layer thickness testing instrument that detects the outdoor environment temperature sensor of ambient temperature and be used to detect the blade of wind-driven generator ice layer thickness; Wherein: said blade surface ice layer thickness testing instrument is a ultrasonic thickness gage; Auxiliary electric heater unit comprises electric heating power supply and the electrical heater plater that is connected with the electric heating power supply; The ultrasound high frequency oscillating apparatus comprises ultrasonic generator and the ultrasonic transducer that is connected with ultrasonic generator through conjunction cable; The quantity of transducer and heater band is arranged according to the size of blade; The power of ultrasonic transducer and heater band all can effectively be regulated according to icing situation, and ultrasonic transducer and electrical heater plater are fixedly mounted on the internal surface of blade of wind-driven generator alternately.In the utility model, ultrasonic transducer and electrical heater plater all adopt the mode that is threaded to be anchored on the internal surface of blade, said ultrasonic transducer and all rectangular array distribution of electrical heater plater simultaneously, and ultrasonic transducer is a piezoelectric constant disk transducer; Electrical heater plater then is square mica electrical heater plater; The blade ice layer thickness signal that temperature signal that automatic controller is fed back according to the outdoor environment temperature sensor and blade surface ice layer thickness testing instrument are fed back is controlled the startup/stop of ultrasonic generator automatically, and the continuous working period of the blade ice layer thickness signal that fed back according to blade surface ice layer thickness testing instrument of automatic controller and ultrasonic generator is controlled the startup/stop of auxiliary electric heater unit automatically.
As shown in Figure 3; It discloses a kind of controlling method of above-mentioned hot auxiliary ultrasonic associating deicer; May further comprise the steps: (1) judges whether to reach freezing temperature according to the temperature signal that the outdoor environment temperature sensor is fed back, in case reach freezing temperature, starts ultrasonic generator automatically; (2) after ultrasonic generator starts, to ultrasonic transducer ac-excited electric current is provided, ultrasonic transducer produces high frequency oscillation, blade of wind-driven generator is carried out the deicing operation; (3) after the operating time of ultrasonic generator continued preset time t; Judge the size of blade surface ice layer thickness testing instrument current blade of wind-driven generator ice layer thickness that is fed back and the ice layer thickness lower limit h that presets; If current blade of wind-driven generator ice layer thickness is not higher than ice layer thickness lower limit h, then close ultrasonic generator; If current blade of wind-driven generator ice layer thickness is higher than ice layer thickness lower limit h, then open auxiliary electric heater unit automatically, be not higher than ice layer thickness lower limit h until current blade of wind-driven generator ice layer thickness, close ultrasonic generator, auxiliary electric heater unit.
The working principle of the utility model is:
The ambient temperature signal of at first gathering according to outdoor environment temperature sensor 5 judges whether to have reached freezing temperature, in case reached freezing temperature, ultrasonic generator 1 is opened automatically; Drive ultrasonic transducer 3 work; The high frequency oscillation deicing that the ultrasound that utilizes ultrasonic transducer 3 to send produces, ice layer thickness testing instrument 6 is measured ice layer thickness in real time on set time intra vane surface, if ice layer thickness is lower than setting value; Ultrasonic generator 1 quits work automatically, and ice detachment is accomplished; If ice layer thickness is higher than setting value; Auxiliary electrical heating system 4 is opened automatically; Deicing under the synergy of electric heating auxiliary ultrasonic high frequency oscillation; Blade surface ice layer thickness testing instrument 6 is measured ice layer thickness in real time simultaneously, and when ice layer thickness was lower than setting value, ultrasonic generator 1 quit work with auxiliary electrical heating system 4 automatically.
Therefore, at the starting stage of freezing, outdoor environment temperature sensor acquisition temperature signal; Automatic controller is opened ultrasonic generator in real time automatically according to the temperature signal of feedback; Ultrasound transducer array is started working, and produces high frequency oscillation at blade surface, and high frequency oscillation is in the generation great shear forces at the interface of blade surface and ice sheet; Can effectively overcome the adhesion strength between ice sheet and the blade surface, thereby make the ice sheet fragmentation come off; If set in the operating time; High frequency oscillation is not enough to overcome fully the adhesion strength between ice sheet and the blade surface in the shearing force that produces at the interface of blade surface and ice sheet, and ice sheet can't be removed fully, and the auxiliary electrical heating system is opened automatically; The electrical heater plater array imposes the small-power heating to blade surface; Only need to melt blade surface and ice sheet ice crystal at the interface, make to form water membrane or solid-liquid thickness district at the interface, reduce the adhesion strength between ice sheet and the blade surface; Vltrasonic device continues operation simultaneously, and the significant shear power that hyperacoustic high frequency oscillation produces just can shake ice sheet fall.Under hot auxiliary ultrasonic synergy, finally accomplish the whole blade ice detachment.In ice detachment, ultrasound transducer array also can be regulated power and operation columns according to icing situation.
Claims (4)
1. a hot auxiliary ultrasonic is united deicer; Comprise blade of wind-driven generator; It is characterized in that, also comprise automatic controller, auxiliary electric heater unit, ultrasound high frequency oscillating apparatus, be used to the blade surface ice layer thickness testing instrument that detects the outdoor environment temperature sensor of ambient temperature and be used to detect the blade of wind-driven generator ice layer thickness; Auxiliary electric heater unit comprises electric heating power supply and the electrical heater plater that is connected with the electric heating power supply; The ultrasonic transducer that the ultrasound high frequency oscillating apparatus comprises ultrasonic generator and is connected with ultrasonic generator through conjunction cable, and ultrasonic transducer and electrical heater plater are fixedly mounted on the internal surface of blade of wind-driven generator alternately; The blade ice layer thickness signal that temperature signal that automatic controller is fed back according to the outdoor environment temperature sensor and blade surface ice layer thickness testing instrument are fed back is controlled the startup/stop of ultrasonic generator automatically, and the continuous working period of the blade ice layer thickness signal that fed back according to blade surface ice layer thickness testing instrument of automatic controller and ultrasonic generator is controlled the startup/stop of auxiliary electric heater unit automatically.
2. according to the said hot auxiliary ultrasonic associating deicer of claim 1, it is characterized in that said blade surface ice layer thickness testing instrument is a ultrasonic thickness gage.
3. according to claim 1 or 2 said hot auxiliary ultrasonic associating deicers, it is characterized in that all rectangular array distribution of said ultrasonic transducer and electrical heater plater.
4. according to the said hot auxiliary ultrasonic associating deicer of claim 3, it is characterized in that said ultrasonic transducer is a piezoelectric constant disk transducer; And electrical heater plater is square mica electrical heater plater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120553941XU CN202451373U (en) | 2011-12-27 | 2011-12-27 | Heat-assisted ultrasonic combined deicing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120553941XU CN202451373U (en) | 2011-12-27 | 2011-12-27 | Heat-assisted ultrasonic combined deicing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451373U true CN202451373U (en) | 2012-09-26 |
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ID=46867240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120553941XU Withdrawn - After Issue CN202451373U (en) | 2011-12-27 | 2011-12-27 | Heat-assisted ultrasonic combined deicing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451373U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471633A (en) * | 2013-09-30 | 2013-12-25 | 江苏德易普传感科技有限公司 | Ultrasonic sensor with heating function |
| CN106325109A (en) * | 2015-06-19 | 2017-01-11 | 徐工集团工程机械股份有限公司 | Deicing equipment automatic control method, device and system |
| CN108252878A (en) * | 2016-12-28 | 2018-07-06 | 北京金风科创风电设备有限公司 | blade deicing device and method for wind generating set |
| CN113815803A (en) * | 2021-09-28 | 2021-12-21 | 中国船舶工业集团公司第七0八研究所 | Deicing system of polar air cushion transportation platform device |
-
2011
- 2011-12-27 CN CN201120553941XU patent/CN202451373U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471633A (en) * | 2013-09-30 | 2013-12-25 | 江苏德易普传感科技有限公司 | Ultrasonic sensor with heating function |
| CN106325109A (en) * | 2015-06-19 | 2017-01-11 | 徐工集团工程机械股份有限公司 | Deicing equipment automatic control method, device and system |
| CN106325109B (en) * | 2015-06-19 | 2019-02-26 | 徐工集团工程机械股份有限公司 | Deicing equipment autocontrol method, device and system |
| CN108252878A (en) * | 2016-12-28 | 2018-07-06 | 北京金风科创风电设备有限公司 | blade deicing device and method for wind generating set |
| CN113815803A (en) * | 2021-09-28 | 2021-12-21 | 中国船舶工业集团公司第七0八研究所 | Deicing system of polar air cushion transportation platform device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120926 Effective date of abandoning: 20130807 |
|
| RGAV | Abandon patent right to avoid regrant |