CN112963316A - Bird-repelling early warning device and method for horizontal-axis wind generating set - Google Patents
Bird-repelling early warning device and method for horizontal-axis wind generating set Download PDFInfo
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- CN112963316A CN112963316A CN202110344393.8A CN202110344393A CN112963316A CN 112963316 A CN112963316 A CN 112963316A CN 202110344393 A CN202110344393 A CN 202110344393A CN 112963316 A CN112963316 A CN 112963316A
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- 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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
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- 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
- F03D80/30—Lightning protection
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- 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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Energy (AREA)
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- Environmental Sciences (AREA)
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Abstract
The invention provides a bird-repelling early warning device and method for a horizontal-axis wind generating set, which comprises a mechanical energy supply system and an audio generation system, wherein the mechanical energy supply system and the audio generation system are arranged in an inner cavity of a blade of the wind generating set; the mechanical energy supply system absorbs the kinetic energy of the rotation motion of the blades of the horizontal-axis wind generating set and provides driving force for the audio generation system; the audio generation system generates bird repelling early warning audio along with the blades, and plays a role in moving the wind wheel by dot matrix marking; the bird repelling early warning device can effectively form early warning on birds, reduce environmental noise pollution and simultaneously does not increase related risks of lightning stroke of blades; the device has the advantages of simple research and development, low manufacturing cost, high operation reliability and capability of realizing self-energy supply.
Description
Technical Field
The invention relates to bird protection, in particular to a bird repelling early warning device and method for a horizontal axis wind generating set.
Background
With the increasing urgent need of environmental protection, the utilization of renewable energy sources is more and more extensive. In the early stage, wind power plants in China are mostly located in inland regions in the northwest where wind energy resources are rich. Due to the fact that the land is wide and sparse, the energy demand of nearby towns is limited, however, the electric power long-distance transmission loss is large, meanwhile, the instability of wind energy can impact a power grid, and the situation that partial wind is abandoned and electricity is limited is caused. Over the years of technological progress, the development of wind energy resources in the southeast coast has become a recent trend. The offshore wind farm can be divided into an intertidal wind farm, an offshore wind farm and a deep sea wind farm according to the water depth, and has obvious advantages in all aspects: the sea area has flat terrain and superior wind energy resources; the power energy is easy to transmit and absorb near developed cities with gathered population; the method is suitable for the comprehensive utilization of resources, saves investment and improves the rate of return.
However, offshore sea areas and islands are areas rich in wind energy resources, and are also main passages and habitats for bird migration, and areas are overlapped; in addition, spring and autumn are not only seasons with rich wind energy resources, but also the time period of bird migration, and the time overlaps. The construction and operation of wind farms may have some impact on bird behavior, with injury or death from wind turbine collisions being the most direct and serious form of impact. The following rules are found through observation and research:
1. the experts believe that birds migrate dispersedly after entering inland and no longer have obvious main migration channels.
2. Most birds will avoid the wind power plant-the birds are selected to fly away from the fan, on one hand, because the birds have good eyesight, the birds can find obstacles hundreds of meters away and fly around; on one hand, birds are sensitive to noise, and can sense blade wind sweeping noise and mechanical operation noise generated when a fan runs.
3. To a large extent, the risk of birds colliding with the wind turbine is dependent on their flight height. Generally, birds have higher flying height in the long-distance migration process, and can stop short-term in the way and frequently take off and land due to the foraging requirement of nutrition supplement; or the flying height is lower during the short-distance back-and-forth migration between the foraging place and the habitat; birds can further reduce altitude flight when in headwind or at night, both of which can increase the risk of colliding with a fan.
4. To a large extent, the collision with the fan is caused by the fact that birds cannot avoid the wind in time and are hit by the blades moving at high speed.
5. The probability of impact is weather dependent. When the weather is fine, the probability that birds collide with the fan is extremely low; in foggy, smoky, cloudy or rainy weather, especially in spring, the chance of a false hit is increased.
6. Under severe weather conditions, the light source may attract birds migrating at night, which becomes an important factor affecting their safety and increases the risk of colliding with a fan.
Along with the development of wind power projects, noise and light shadow influence the inhabitation and propagation of birds, the effect of the noise and light shadow is equivalent to the disappearance of the activity range of the birds, and the related environmental assessment should comprise the evaluation of the influence on biodiversity. The site selection and the arrangement of the wind power plant are subject to the following principles: 1. avoiding building a wind power plant in a high-density bird activity area; 2. the large-area continuous bird habitat is prevented from being segmented; 3. the fans are prevented from being arranged in a single row along a ridge line along a migration route at a long distance; 4. a sufficiently wide flight path is left between adjacent fans.
For the established wind power plant, an organization expert of the environmental protection department performs acceptance evaluation, and determines whether to detach or partially detach or take effective protective measures according to the actual influence degree of the wind power plant on birds. By taking the experience of preventing bird collisions in airports as a reference, the following strategies are introduced: 1. setting a simulation person to drive birds, playing the sound of natural enemies of the birds to drive the birds, arranging an electronic gun/cannon to drive the birds and the like; 2. the number of birds needs to be observed in a migration season, and the fan needs to be closed timely when the number of birds entering a field is large; 3. weather changes need to be monitored in the migration season, and the fan needs to be turned off in the time period when birds are forced to fly low due to strong wind, strong fog and the like.
Therefore, the problem that birds collide with the fan is reasonably solved, the probability of accidental death of the birds can be reduced, damage to the fan can be reduced, and the normal operation time of the unit can be prolonged. Through investigation, the existing bird-repelling early warning patents can be divided into the following categories:
I. fan bird-repelling device
The method of audio bird repelling, CD-ROM bird repelling or the combination of the audio bird repelling and the CD-ROM bird repelling is adopted, a power supply of a machine set is used or an independent solar energy/wind energy power generation device is used for supplying power, an early warning signal is sent to the birds, and the birds are forced to keep flying for a certain distance.
II. Wind power plant bird repelling system
A plurality of fans of a wind power plant form a community, bird situation information in a detection area of the bird detection device is utilized, the bird repelling device is controlled to repel according to manual/algorithm judgment, and effects of better early warning effect and better maintenance cost than a single unit are achieved through control strategy optimization.
For the case of the class I patent, the exposed problems include: the combination of various bird repelling modes such as sound and light is considered to effectively improve the early warning effect, and researches find that the light cannot attract certain bird behaviors, so that the light is attracted to the birds behaviors, and the potential risk of accidents is increased. Due to energy supply requirements, the bird repelling device needs to be placed at a relatively static position, such as the top of a cabin, accidents are mainly caused by the fact that birds cannot evade moving blades in time, if static early warning signals are weak, dangerous ranges are difficult to mark effectively, and particularly in areas where the birds forage and inhabit and fans are densely arranged; if the warning signal is strong, noise pollution in the surrounding area can be caused because the range of the bird hearing frequency is approximately similar to that of human beings.
For the case of the class II patent, the exposed problems include: the purchasing and maintenance costs of the bird detection device and the control system are high, a long research and development period is needed for bird situation information acquisition and screening and wind power plant early warning signal strategy optimization, and although part of power energy of the bird repelling device is saved, the investment and development costs of the whole system and the total energy consumption of each functional device are not low. The bird-repelling early warning signal coverage range is larger than the accumulated range of each unit, the occupation of the bird living environment is more obvious, and the bird-repelling early warning signal coverage range is difficult to be carried out in areas with good ecological environment.
This patent is tried to describe a drive bird early warning device, installs at the blade inner chamber, can absorb horizontal axis wind generating set blade rotary motion kinetic energy, only relies on audio signal, plays the effect of dot matrix mark motion wind wheel, effectively forms the early warning to birds, reduces environmental noise pollution, does not increase the relevant risk of blade thunderbolt simultaneously. The device has the advantages of simple research and development, low manufacturing cost, high operation reliability and capability of realizing self-energy supply.
Disclosure of Invention
The invention aims to provide a bird repelling early warning device and method for a horizontal axis wind generating set, and the bird repelling early warning device and method solve the defects in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a bird repelling early warning device for a horizontal axis wind generating set, which comprises a bird repelling early warning device body, a bird repelling early warning device body and a bird warning device body, wherein the bird repelling early warning device body is arranged on the inner side of each blade in the horizontal axis wind generating set;
the bird repelling early warning device body comprises a mechanical energy supply system and an audio generation system, wherein the mechanical energy supply system is used for providing driving force for the audio generation system;
the audio generation system is used for generating bird-repelling early warning audio.
Preferably, the mechanical energy supply system comprises a swing top, a spring assembly, a gear train assembly and a protective cover, wherein the protective cover is installed inside the blade shell of the wind generating set; the pendulum, the spring assembly and the gear train assembly are arranged in the protective cover;
the pendulum top is connected with the ratchet wheel of the spring assembly in a kinematic mode and used for winding the spring; the spring assembly is kinematically connected with the gear train assembly and is used for driving the gear train assembly to run; the gear train component is kinematically connected with the audio generation system and used for providing driving force for the audio generation system.
Preferably, the audio generation system comprises a knocking hammer, a bell and a base, wherein the base is installed on the inner side of a blade lightning receptor on the wind generating set; the bell is fixed on the base;
the knocking hammer is kinematically connected with a gear train component of the mechanical energy supply system; the knocking hammer acts on the outer wall of the bell.
Preferably, the bird repelling early warning device body is arranged in an inner cavity of a blade of the wind generating set, and the mechanical energy supply system is arranged on one side close to a blade lightning receptor on the wind generating set and is fixed on the inner surface of a shell of the blade or the surface of a shear web; the audio generation system is mounted on the inner surface of the blade receptor.
Preferably, each blade lightning receptor on the wind generating set is correspondingly provided with a set of bird-repelling early warning device body.
Preferably, when the installation number of the bird repelling early warning device bodies is smaller than the number of the blade lightning receptors on the wind generating set, the bird repelling early warning device bodies are installed on the blade lightning receptors close to the blade tips in a concentrated mode, or are installed on the blade lightning receptors on the windward side shell of the blades in a concentrated mode, or are installed on the blade lightning receptors on the leeward side shell of the blades in a concentrated mode.
Preferably, the bird repelling early warning device comprises a bird repelling early warning device body arranged on the inner side of each blade in the horizontal-axis wind generating set;
the bird repelling early warning device body is arranged in an inner cavity of a blade of the wind generating set;
the bird repelling early warning device body comprises a mechanical energy supply system and an audio generation system, wherein the mechanical energy supply system is used for providing driving force for the audio generation system;
the audio generation system is used for generating bird-repelling early warning audio;
the mechanical energy supply system is arranged on one side of a blade lightning receptor on the wind generating set and is fixed on the inner surface of the blade shell or the surface of the shear web; the audio frequency generation system is arranged on the inner surface of the blade lightning receptor;
the mechanical energy supply system comprises a swing top, a clockwork spring assembly, a gear train assembly and a protective cover, wherein the protective cover is arranged on the inner side of a blade shell of the wind generating set; the pendulum, the spring assembly and the gear train assembly are arranged in the protective cover;
the pendulum top is connected with the ratchet wheel of the spring assembly in a kinematic mode and used for winding the spring; the spring assembly is kinematically connected with the gear train assembly and is used for driving the gear train assembly to run; the gear train component is kinematically connected with the audio generation system and used for providing driving force for the audio generation system;
the audio generation system comprises a knocking hammer, a bell and a base, wherein the base is arranged on the inner side of a blade lightning receptor on the wind generating set; the bell is fixed on the base;
the knocking hammer is kinematically connected with a gear train component of the mechanical energy supply system; the knocking hammer acts on the outer wall of the bell.
A bird repelling early warning method for a horizontal axis wind generating set is based on the bird repelling early warning device for the horizontal axis wind generating set and comprises the following steps:
when the horizontal-axis wind generating set operates, the blades drive the bird-repelling early warning device body to perform rotary motion, and the kinetic energy of the blades is converted and stored through the mechanical energy supply system;
and a mechanical energy supply system is utilized to provide power for the audio generation system, so that the audio generation system follows the blade to generate bird repelling early warning audio.
Compared with the prior art, the invention has the beneficial effects that:
according to the bird repelling early warning device for the horizontal axis wind generating set, the bird repelling early warning device body is mounted on the blades to move along with the blades based on the requirement of accurately marking the moving wind wheel, and an effective warning effect is achieved on birds; therefore, the loudness of the bird-repelling early warning audio can be controlled to be audible in a small range, and the noise pollution of the surrounding environment is reduced;
according to the device, based on the requirement of ensuring the aerodynamic shape of the blade, the bird repelling early warning device body is arranged in the blade cavity, so that the flow field distribution near the wind generating set is not influenced, and the performance of the set is not reduced;
according to the bird repelling early warning device, based on the requirement of protecting the blades from lightning stroke, the bird repelling early warning device body is designed into a full mechanical system, a power supply circuit is not added, any power electronic component is not used, and the system is stable and reliable; the safety of the blade is not influenced by the combination with the installation of a blade lightning protection system; meanwhile, the base of the audio generation system is fixed, so that the blade lightning arrester connecting wire is protected, and the fatigue virtual connection of the connecting point is prevented;
according to the device, the typical characteristic of the rotation motion of the wind wheel of the horizontal axis wind generating set is utilized, the mechanical energy supply system converts and stores power and supplies the power to the audio generation system to continuously and stably work, the energy conversion rate is high, and the energy consumption is saved;
according to the device, the condition that the blades are made of the fiber reinforced resin composite material and are not beneficial to sound conduction is considered, the audio generation system of the bird repelling early warning device is arranged on the inner side of the blade lightning receptor made of the metal material, so that bird repelling early warning audio is transmitted out through the blade lightning receptor, and the audio emission effect is improved;
the bird repelling early warning function of the horizontal axis wind generating set can be effectively realized, the bird repelling early warning function of the horizontal axis wind generating set is not required to be purchased and maintained, a bird probing device and a control system are not required to be applied, a signal screening and identifying method and a control strategy link are not required to be researched and developed, the system is simple and easy to realize, the maintenance requirement is low, and the time and the cost are saved;
in conclusion, the invention has the advantages of simple research and development, low manufacturing cost, safe and reliable operation and capability of realizing self-energy supply.
Drawings
Fig. 1 is a schematic structural diagram of a bird repelling early warning device of a horizontal-axis wind generating set.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the bird repelling early warning device for the horizontal axis wind generating set provided by the invention comprises a bird repelling early warning device body arranged on the inner side of each blade in the horizontal axis wind generating set; the bird repelling early warning device body comprises a mechanical energy supply system 3 and an audio generation system 8, wherein the mechanical energy supply system 3 is installed on one side close to a blade lightning receptor 2 on the wind generating set and is fixed on the inner surface of a blade shell 1 or the surface of a shear web; the mechanical energy supply system 3 is used for supplying driving force to the audio generation system 8; the audio generation system 8 is arranged on the inner surface of the blade lightning receptor 2; and the audio generation system 8 is used for generating bird-driving early warning audio.
The mechanical energy supply system 3 is of a mechanical watch movement structure and specifically comprises a swing top 4, a clockwork spring assembly 5, a gear train assembly 6 and a protective cover 7, wherein the protective cover 7 is arranged on the inner side of the blade shell 1 of the wind generating set; the pendulum 4, spring assembly 5 and gear train assembly 6 are arranged in a protective cover 7.
The pendulum mass 4 is connected with the ratchet wheel of the spring assembly 5 in a kinematic manner and is used for realizing the spring winding; the spring assembly 5 is kinematically connected with the gear train assembly 6 and used for releasing elastic force to the gear train assembly 6 and driving the gear train assembly 6 to run.
The gear train assembly 6 is kinematically coupled to the audio generation system 8 for providing a driving force to the audio generation system 8.
The audio generation system 8 comprises a knocking hammer 9, a ringing bell 10 and a base 11, wherein the base 11 is arranged on the inner side of the blade lightning receptor 2 on the wind generating set; the bell 10 is fixed to the base 11.
The knocking hammer 9 is kinematically connected with a wheel train assembly 6 of the mechanical energy supply system 3; the striking hammer 9 acts on the outer wall of the bell 10.
Each blade lightning receptor 2 on the wind generating set is correspondingly provided with a set of bird-repelling early warning device body.
When the installation quantity of the bird repelling early warning device bodies is smaller than the quantity of the blade lightning receptors 2 on the wind generating set, the bird repelling early warning device bodies are installed in a concentrated mode on the blade lightning receptors 2 close to the blade tips, or installed in a concentrated mode on the blade lightning receptors 2 on the windward side shell of the blade, or installed in a concentrated mode on the blade lightning receptors 2 on the leeward side shell of the blade.
The mechanical energy supply system 3 is arranged at the inner side of the blade shell 1 and near the position of the blade lightning receptor 2 and is kinematically connected with a knocking hammer 9 of an audio generation system 8, and consists of a pendulum mass 4, a clockwork spring assembly 5, a wheel train assembly 6 and a protective cover 7 by means of the internal structure of a mechanical watch movement; the kinetic energy of the blades is converted and stored to drive the knocking hammer 9 to move regularly.
The gyroscope 4 is a half-moon-shaped centrifugal block; the blades drive the mechanical energy supply system 3 to move, and the swing top 4 rotates under the action of gravity to enable the clockwork spring assembly 5 to be tightened, so that a power source is provided for the system.
The gear train component 6 is a mechanical gear train and is connected with a knocking hammer 9 of an audio generation system 8; the spring assembly 5 is driven to run by releasing elasticity to drive the knocking hammer 9 of the audio generating system 8 to move regularly, so that output according with a designed running track is provided for the system.
The protective cover 7 is a shell of the mechanical energy supply system 3 and is fixed on the inner surface of the blade shell 1 or the surface of the shear web in a bonding mode; the mechanical energy supply system 3 components are positioned and protected.
The audio generation system 8 is composed of a knocking hammer 9, a ring 10 and a base 11 by virtue of a mechanical ring structure, is arranged on the inner side of the blade lightning receptor 2 and is connected with a gear train component 6 of the mechanical energy supply system 3; under the drive of gear train subassembly 6, strike hammer 9 regular motion, arouse jingle bell 10 vibrations, will drive bird early warning audio transmission away through blade arrester 2.
The knocking hammer 9 is a mechanical hammer and is connected with the wheel train assembly 6 of the mechanical energy supply system 3; the bell 10 is knocked in a regular motion by the wheel train assembly 6.
The bell 10 is a generator and is arranged on the base 11; the bird repelling early warning audio is sent out by vibrating under the excitation of the knocking hammer 9.
The base 11 is a bell 10 support and is fixed on the inner side of the blade lightning receptor 2 in an adhering or assembling mode; the hanging posture of the bell 10 is positioned, and the displacement of the lightning receptor connecting wire 12 and the deformation near the connecting point of the blade lightning receptor 2 are restrained.
The working principle of the bird repelling early warning device of the horizontal axis wind generating set is described as follows:
a set of bird repelling early warning device body is arranged on each blade of the wind generating set and on the inner side of each blade lightning receptor 2, or a set of bird repelling early warning device body is arranged on a windward side/leeward side shell of the blade and on the inner side of the blade lightning receptor 2 close to the blade tip preferentially; when the horizontal axis wind generating set operates, the blade drives the bird-repelling early warning device body to do rotary motion, the pendulum top 4 of the mechanical energy supply system 3 rotates under the action of gravity to enable the clockwork spring assembly 5 to be tightened, and the kinetic energy of the blade is converted and stored.
Observing near the running unit, each blade lightning receptor 2 of each blade of the wind wheel, which is provided with the bird repelling early warning device body, can send bird repelling early warning audio frequency to form dot matrix marks on the moving wind wheel, so that the effect of effectively forming early warning on birds is achieved.
The technical requirements of the bird repelling early warning device of the horizontal axis wind generating set related by the invention can influence the marking effect of bird repelling early warning audio on the moving wind wheel and the safety of blades, so that the bird repelling early warning device needs to be used as a part of the invention and is described as follows:
based on the requirement of accurately marking the moving wind wheel, the bird repelling early warning device body is arranged on the blade to move along, so that the bird repelling early warning device has an effective warning effect on birds; therefore, the loudness of the bird-repelling early warning audio can be controlled to be audible in a small range, and the noise pollution of the surrounding environment is reduced.
Based on the requirement of ensuring the aerodynamic shape of the blade, the bird-repelling early warning device body is installed inside the blade cavity, so that the flow field distribution near the wind generating set is not influenced, and the performance of the set is not reduced.
Consider that the blade is made by fibre reinforced resin combined material, be unfavorable for the sound conduction, will drive bird early warning device audio frequency generation system 8 and install at the blade lightning arrester 2 inboards that the metal material made, make and drive bird early warning audio frequency and transmit away through blade lightning arrester 2, improve the audio frequency transmission effect.
Based on the requirement of protecting the blade from lightning stroke, the blade lightning receptor 2 needs to play a lightning triggering role, the bird repelling early warning device body is designed into a full-mechanical system, a power supply circuit is not added, any power electronic component is not used, and the system is stable and reliable; the safety of the blade is not influenced by the combination with the installation of a blade lightning protection system; meanwhile, the base 11 of the audio generation system 8 is fixed, so that the blade lightning arrester connecting wire 12 is protected, and the condition that the connecting point is fatigue and virtual connection is prevented.
By means of the typical characteristic of the wind wheel rotary motion of the horizontal shaft wind generating set, the energy storage mode of winding a spring on the automatic swing top 4 of the mechanical energy supply system 3 is utilized, power can be converted and stored nearby, the power is supplied to the audio frequency generation system 8 to work continuously and stably, the energy conversion rate is high, and energy consumption is saved.
The mechanical energy supply system 3 of the bird-repelling early warning device is designed and manufactured by means of the internal structure of the mechanical watch movement, the weight and the cost of the device can be effectively controlled, and the safety of the blade structure at the installation position cannot be influenced.
The device and the method effectively realize the bird repelling early warning function of the horizontal axis wind generating set.
Claims (8)
1. A bird repelling early warning device of a horizontal axis wind generating set is characterized by comprising a bird repelling early warning device body arranged on the inner side of each blade in the horizontal axis wind generating set;
the bird repelling early warning device body comprises a mechanical energy supply system (3) and an audio generation system (8), wherein the mechanical energy supply system (3) is used for providing driving force for the audio generation system (8);
the audio generation system (8) is used for generating bird-driving early warning audio.
2. The bird repelling early warning device of the horizontal axis wind generating set according to claim 1, wherein the mechanical energy supply system (3) comprises a pendulum mass (4), a clockwork spring assembly (5), a gear train assembly (6) and a protective cover (7), wherein the protective cover (7) is installed inside a blade shell (1) of the wind generating set; the pendulum mass (4), the clockwork spring assembly (5) and the gear train assembly (6) are arranged in the protective cover (7);
the pendulum mass (4) is connected with the ratchet wheel kinematics of the clockwork spring assembly (5) and is used for winding up the clockwork spring; the spring assembly (5) is kinematically connected with the gear train assembly (6) and is used for driving the gear train assembly (6) to run; the gear train assembly (6) is kinematically connected with the audio generation system (8) and used for providing driving force for the audio generation system (8).
3. The bird repelling early warning device of the horizontal-axis wind generating set according to claim 1, wherein the audio generating system (8) comprises a knocking hammer (9), a bell (10) and a base (11), wherein the base (11) is installed inside a blade lightning receptor (2) on the wind generating set; the bell (10) is fixed on the base (11);
the knocking hammer (9) is connected with a gear train component (6) of the mechanical energy supply system (3) in a kinematic manner; the knocking hammer (9) acts on the outer wall of the bell (10).
4. The bird repelling early warning device of the horizontal-axis wind generating set according to claim 1, wherein the bird repelling early warning device body is arranged in an inner cavity of a blade of the wind generating set, the mechanical energy supply system (3) is installed at one side close to a blade lightning receptor (2) on the wind generating set and fixed on the inner surface of a blade shell (1) or the surface of a shear web; the audio generation system (8) is arranged on the inner surface of the blade lightning receptor (2).
5. The bird repelling early warning device of the horizontal-axis wind generating set according to claim 1, wherein each blade lightning receptor (2) on the wind generating set is correspondingly provided with a set of bird repelling early warning device body.
6. The bird repelling early warning device for the horizontal-axis wind generating set according to claim 1, wherein when the installation number of the bird repelling early warning device body is smaller than the number of the blade lightning receptors (2) on the wind generating set, the bird repelling early warning device body is installed on the blade lightning receptors (2) close to the blade tips, or on the blade lightning receptors (2) on the windward side shells of the blades, or on the blade lightning receptors (2) on the leeward side shells of the blades.
7. The bird repelling early warning device of the horizontal axis wind generating set according to claim 1, comprising a bird repelling early warning device body arranged on the inner side of each blade in the horizontal axis wind generating set;
the bird repelling early warning device body is arranged in an inner cavity of a blade of the wind generating set;
the bird repelling early warning device body comprises a mechanical energy supply system (3) and an audio generation system (8), wherein the mechanical energy supply system (3) is used for providing driving force for the audio generation system (8);
the audio generation system (8) is used for generating bird repelling early warning audio;
the mechanical energy supply system (3) is arranged at one side close to a blade lightning receptor (2) on the wind generating set and is fixed on the inner surface of the blade shell (1) or the surface of the shear web; the audio frequency generation system (8) is arranged on the inner surface of the blade lightning receptor (2);
the mechanical energy supply system (3) comprises a swing top (4), a clockwork spring assembly (5), a gear train assembly (6) and a protective cover (7), wherein the protective cover (7) is arranged on the inner side of a blade shell (1) of the wind generating set; the pendulum mass (4), the clockwork spring assembly (5) and the gear train assembly (6) are arranged in the protective cover (7);
the pendulum mass (4) is connected with the ratchet wheel kinematics of the clockwork spring assembly (5) and is used for winding up the clockwork spring; the spring assembly (5) is kinematically connected with the gear train assembly (6) and is used for driving the gear train assembly (6) to run; the gear train assembly (6) is kinematically connected with the audio generation system (8) and is used for providing driving force for the audio generation system (8);
the audio generation system (8) comprises a knocking hammer (9), a ringing bell (10) and a base (11), wherein the base (11) is arranged on the inner side of a blade lightning receptor (2) on the wind generating set; the bell (10) is fixed on the base (11);
the knocking hammer (9) is connected with a gear train component (6) of the mechanical energy supply system (3) in a kinematic manner; the knocking hammer (9) acts on the outer wall of the bell (10).
8. A bird repelling early warning method for a horizontal axis wind generating set is characterized in that the bird repelling early warning device for the horizontal axis wind generating set is based on any one of claims 1 to 7 and comprises the following steps:
when the horizontal-axis wind generating set operates, the blades drive the bird-repelling early warning device body to perform rotary motion, and the kinetic energy of the blades is converted and stored through the mechanical energy supply system (3);
the mechanical energy supply system (3) is used for providing power for the audio generation system (8), so that the audio generation system (8) follows the blade to generate bird repelling early warning audio.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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