SE8206718A0 - Warning light for wind turbines - Google Patents
Warning light for wind turbinesInfo
- Publication number
- SE8206718A0 SE8206718A0 SE8206718A SE8206718A SE8206718A0 SE 8206718 A0 SE8206718 A0 SE 8206718A0 SE 8206718 A SE8206718 A SE 8206718A SE 8206718 A SE8206718 A SE 8206718A SE 8206718 A0 SE8206718 A0 SE 8206718A0
- Authority
- SE
- Sweden
- Prior art keywords
- light
- warning light
- turbine
- light source
- warning
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- 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
- F03D80/10—Arrangements for warning air traffic
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
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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
Landscapes
- Engineering & Computer Science (AREA)
- General 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)
- Wind Motors (AREA)
Abstract
Varningsljus for bladspetsarna (13) pa horisontalaxlat vindkraftverk. Ljuskallan (4) är placerad intill turbinaxeln (6). En ljusledarkanal (10) som bestar av optiska fibrer ar anordnad att leda ljuset fran ljuskallan (4) till en optisk 5diffusor som är placerad i bladspetsen. Fig. 2 Warning light for the blade tips (13) on a horizontal shaft wind turbine. The light source (4) is located next to the turbine shaft (6). A light guide channel (10) consisting of optical fibers is arranged to direct the light from the light source (4) to an optical diffuser located in the blade tip. Fig. 2
Description
el.U U I 1JU UJ ALLMANNA INGENJUSBYRAN AB Varningsljus for vindkraftverk FOreliggande uppfinning avser ett varningsljus for bladspetsarna pa horisontalaxlat vindkraftverk. el.U U I 1JU UJ ALLMANNA INGENJUSBYRAN AB Warning light for wind turbines The present invention relates to a warning light for the blade tips of a horizontal shaft wind turbine.
Enligt lagstadgade bestgmmelser skall byggnadsverk vilkas hojd Overstiger en tillaten maximihOjd vara forsedda med varningsljus for att undanroja risker for flygtrafiken. En sAdan typ av byggnadsverk (Jar dessa bestammelser maste beaktas är de stora vindkraftverken. Vid de horisontalaxlade vindkraftverk som idag air uppforda i Sverige uppgar bladspetsarnas storsta hojd Over marken till mellan 100 och 150 meter. According to statutory provisions, buildings whose height exceeds a permitted maximum height must be provided with warning lights to eliminate risks to air traffic. One such type of structure (If these regulations must be taken into account are the large wind turbines. At the horizontal axis wind turbines that today air up in Sweden, the largest height of the leaf tips above the ground is between 100 and 150 meters.
Anordnandet av en ljuskalla i bladspetsarna bjuder pA problem som hittills inte har kunnat losas pa ett tillfredsstallande satt. Orsaken till detta är de trOghetskrafter som upptrader i bladspetsarna. Spetshastigheten i ett modernt vindkraftverk uppgar till Ca. 100 m/sekund. Ned turbindiametrar pa mellan 50 och 100 meter ger detta troghetskrafter_i bladspetsar- na pa mellan 20 och 40 g. Det finns idag inga kommersiellt tillgaingliga ljuskallor med erforderlig ljusstyrka som tal sa stora -troghetskrafter med hansyn till sin mekaniska hallfasthet. Forutom att det av hallfasthetstekniska skal är omojligt att placera konventionella lampor i bladspetsarna är en dylik placering olamplig aven av det.skglet att det uppstar svarigheter i samband med byte av lampor. Foreliggande uppfinning har till andamal att undanroja de ovan namnda problemen vid varningsljus for bladspetsarna i vindkraftverk pa ett satt som uppfyller gallande krav och med utnyttjande av kommersiellt tillggngliga element. The arrangement of a candlestick in the leaf tips offers pA problems which so far have not been satisfactorily solved. The reason for this is the forces of inertia that appear in the leaf tips. The top speed in a modern wind turbine is approx. 100 m / second. Down turbine diameters pa between 50 and 100 meters, this gives forces of inertia_in the tip of the leaf between 20 and 40 g. There are currently no commercially available light sources with the required brightness as numbers as large forces of inertia with regard to its mechanical half-strength. Except that it is impossible for technical strength shells Placing conventional lamps in the leaf tips is one such placement unsuitable even of it.skglet that there arise responsibilities in connection with the replacement of lamps. The present invention has for its object to obviate the above-mentioned problems of warning light for the blade tips in wind turbines in a manner which satisfies bile requirements and with the use of commercially available element.
Varningsljuset enligt uppfinningen kannetecknas av att ljuskallan air placerad intill turbinaxeln, varvid en ljusledare som bestar tex av optiska fibrer eller rOr med speglande belggg- fling air anordnad att leda ljuset fran ljuskallan till en optisk diffusor eller annan spridare som air placerad i bladspetsen. Uppfinningen beskrivs i detalj i det foljande under han- visning till bifogade ritningsfigurer som Askadliggor schematiskt tva utforingsformer av ett varningsljus enligt uppfin- ningen. 2 Fig. 1 pa ritningen är en schematisk sidovy av ett horisontalaxlat vindkraftverk, fig. 2 visar en utfaringsform av uppfinningen dar ljuskallan är placerad i vindkraftverkets roterande del, fig. 3 visar en utforingsform av uppfinningen dar ljuskallan gr placerad i vindkraftverkets stationara del och fig. 4 visar placeringen av varningsljusets diffusor i blad- spetsen. The warning light according to the invention can be characterized in that the light source air is placed next to the turbine shaft, a light guide which consists, for example, of optical fibers or tubes with reflective coatings. fling air arranged to direct the light from the light source to an optical diffuser or other diffuser as air placed in the blade tip. The invention is described in detail in the following. reference to the accompanying drawing figures which Askadliggat schematically two embodiments of a warning light according to the invention ningen. 2 Fig. 1 of the drawing is a schematic side view of a horizontal axis wind turbine, Fig. 2 shows an embodiment of the invention where the light head is placed in the rotating part of the wind turbine, Fig. 3 shows an embodiment of the invention where the light head is placed in the stationary part of the wind turbine and Fig. 4 shows the location of the diffuser of the warning light in the the tip.
Det i fig. 1 visade vindkraftverket bestar av ett torn 1, ett turbin- och generatorhus 2 saint turbinblad 3. Varningsljusets ljuskalla är placerad mom omradet A intill turbinaxeln och dess diffusor mom omradet B i bladspetsen. The wind turbine shown in Fig. 1 consists of a tower 1, a turbine and generator housing 2 saint turbine blades 3. The warning light of the warning light is located in area A next to the turbine shaft and its diffuser mom area B in the tip of the leaf.
I fig. 2 ar visat i detalj symboliska element hos en fOrsta utfOringsform av varningsljuset enligt uppfinningen dgr ljuskallan 4 är placerad i turbinens roterande del 5 intill turbinaxeln S. Ljuset frail ljuskallan 4 traffar linsen 7 dels direkt och dels via reflektion fran spegeln 8. Linsen 7 samlar ljuset mot anden 9 av den optiska fiberkabeln 10 som leder ljuset till diffusorn i bladspetsen. Fig. 2 shows in detail symbolic elements of a first embodiment of the warning light according to the invention when the light source 4 is placed in the rotating part 5 of the turbine next to the turbine shaft S. The light from the light source 4 hits the lens 7 partly directly and partly via reflection from the mirror 8. The lens 7 collects the light towards the spirit 9 of the optical fiber cable 10 which conducts the light to the diffuser in the blade tip.
Genom att ljuset ledes fran nay till bladspets genom en kabel paverkas den optiska forbindelsen inte av bladets form- forandringar. En optisk forbindelse med fri ljusstrale kan in-Le -anvandas i ett modernt turbinblad pa grund av dessa formforand- ringar. Den i fig. 2 visade utforingsformen av uppfinningen mojliggor ett fast eller intermittent ljus i bladspetsen runt hela varvet. By directing the light from nay to the tip of the leaf through a cable, the optical connection is not affected by the shape of the blade. changes. An optical connection with free light beam can in-Le -used in a modern turbine blade due to these deformations- rings. The embodiment of the invention shown in Fig. 2 enables a fixed or intermittent light in the blade tip around the entire revolution.
Den i fig. 3 visade utforingsformen innefattar samma symbo- liska element som den i fig. 2 visade utforingsformen och dessa element bar foljaktligen samma hanvisningsbeteckningar som motsvarande element i fig. 2. Eftersom emellertid ljuskallan med symbolisk spegel och lins är monterad i turbinens stationara del 11 medfOr denna utfOringsform att ljuset i bladspetsen begrgnsas till ljuspulser i bestamda punkter runt rotationsvarvet, d.v.s. till de punkter dgr ljuskallor 4 är placerade. The embodiment shown in Fig. 3 comprises the same symbol. elements such as the embodiment shown in Fig. 2 and these elements consequently had the same reference numerals as the corresponding elements in Fig. 2. However, since the light source with symbolic mirror and lens is mounted in the stationary part of the turbine 11 this embodiment means that the light in the tip of the leaf is limited to light pulses at certain points around the rotational revolution, i.e. to the points dgr candle heads 4 are placed.
I fig. 4 ar visat hur en diffusor 12 till vilken ljusledar- kabeln 10 leder är monterad i bladspetsen 13. Diffusorn 12 sprider ljuset fran kabeln 10 till en ljuslob 14. Fig. 4 shows how a diffuser 12 to which light guide the cable 10 leads is mounted in the blade tip 13. The diffuser 12 scattering the light from the cable 10 to a light beam 14.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8206718A SE8206718A0 (en) | 1982-11-25 | 1982-11-25 | Warning light for wind turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8206718A SE8206718A0 (en) | 1982-11-25 | 1982-11-25 | Warning light for wind turbines |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8206718D0 SE8206718D0 (en) | 1982-11-25 |
| SE8206718L SE8206718L (en) | 1984-05-26 |
| SE8206718A0 true SE8206718A0 (en) | 1984-05-26 |
Family
ID=20348737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8206718A SE8206718A0 (en) | 1982-11-25 | 1982-11-25 | Warning light for wind turbines |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE8206718A0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328504C (en) * | 2001-12-08 | 2007-07-25 | 艾劳埃斯·乌本 | Rotor blade of a wind power installation, comprising a warning light |
-
1982
- 1982-11-25 SE SE8206718A patent/SE8206718A0/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328504C (en) * | 2001-12-08 | 2007-07-25 | 艾劳埃斯·乌本 | Rotor blade of a wind power installation, comprising a warning light |
Also Published As
| Publication number | Publication date |
|---|---|
| SE8206718L (en) | 1984-05-26 |
| SE8206718D0 (en) | 1982-11-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
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