CN113958446A - Wind turbine blade and wind turbine generator - Google Patents

Wind turbine blade and wind turbine generator Download PDF

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Publication number
CN113958446A
CN113958446A CN202111039133.6A CN202111039133A CN113958446A CN 113958446 A CN113958446 A CN 113958446A CN 202111039133 A CN202111039133 A CN 202111039133A CN 113958446 A CN113958446 A CN 113958446A
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China
Prior art keywords
shell
air inlet
air
wind turbine
device cavity
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Pending
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CN202111039133.6A
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Chinese (zh)
Inventor
黎阜南
张昊森
刘子豪
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Individual
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Individual
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Priority to CN202111039133.6A priority Critical patent/CN113958446A/en
Publication of CN113958446A publication Critical patent/CN113958446A/en
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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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • 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
    • A01M29/06—Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like
    • A01M29/08—Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like using reflection, colours or films with specific transparency or reflectivity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • 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
    • 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
    • F03D80/50—Maintenance or repair
    • F03D80/55—Cleaning
    • 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
    • F03D80/60—Cooling or heating of wind motors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/24—Reminder alarms, e.g. anti-loss alarms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental Sciences (AREA)
  • Thermal Sciences (AREA)
  • Insects & Arthropods (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Pest Control & Pesticides (AREA)
  • Birds (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

The invention relates to the technical field of wind power generation, in particular to a wind turbine blade and a wind turbine generator, which comprise a shell, wherein a device cavity is formed in the shell, a power generation equipment body is fixedly installed in the device cavity, a rotating shaft is rotatably installed in the power generation equipment body, the front end of the rotating shaft penetrates through the side wall of the device cavity and extends to the outside of the shell, and a plurality of blades are fixedly installed at the front end of the rotating shaft on the outside of the shell. According to the invention, airflow is sent into the air inlet and discharged from the air outlet at the rear end of the device cavity, so that the power generation equipment body in the device cavity is rapidly radiated, impurities of dust in the airflow are filtered, the influence of dust accumulation in the device cavity on the normal operation of the power generation equipment body is avoided, air is sprayed to the filter plate through the plurality of nozzles, then the dust accumulation in the filter plate is sprayed, and the damage of equipment in the device cavity due to long-time high temperature can be avoided.

Description

Wind turbine blade and wind turbine generator
Technical Field
The invention relates to the technical field of wind power generation, in particular to a wind turbine blade and a wind turbine generator.
Background
The wind turbine, also called wind energy converter, is a device that converts the kinetic energy of wind into electric energy, the working principle of the wind power generator is simpler, the wind wheel rotates under the action of wind force, the kinetic energy of wind is converted into mechanical energy of the wind wheel shaft, and the generator rotates under the drive of the wind wheel shaft to generate electricity. In a broad sense, wind energy is also solar energy, so that the wind power generator is a heat energy utilization generator which uses solar energy as a heat source and uses the atmosphere as a working medium.
In the prior art (No. CN111911367A), a wind turbine generator includes a main body of a protection device, the front and rear sides of the outer surface of the lower end of the main body of the protection device are symmetrically and fixedly connected with supporting seats, the outer surface of the upper end of the main body of the protection device is provided with a cover plate which is matched with the main body of the protection device, the two are closed to form a complete hollow protection sleeve, the main body of the generator is arranged inside the main body of the protection device, a vibration damping clamping mechanism is arranged between the main body of the generator and the main body of the protection device, and three main connecting rods are fixedly connected inside the main body of the protection device at equal intervals in an annular manner at positions close to the front end.
The invention can clamp and fix the wind turbine generator and buffer the vibration amplitude generated by normal operation by arranging the protection device main body and the vibration damping clamping mechanism for clamping and fixing the generator main body in the protection device main body, so that the generator main body is in an approximately suspended state during normal operation, the normal circulation of air in the protection device main body can be ensured, the external air and high-temperature air generated during the operation of the internal generator main body are alternated in cold and hot states, and excellent heat dissipation and cooling are carried out on the generator main body, but in actual use, when external air enters the generator main body to carry out heat dissipation and ventilation on the interior of the device, external dust can be inevitably brought into the interior of the device, and further the device is damaged, if the dust removal is not carried out on the air entering the interior of the device, the generator main body can be damaged due to excessive dust accumulation in the generator main body after long-term use.
To this end, a wind turbine blade and a wind turbine generator are proposed.
Disclosure of Invention
The invention aims to provide a wind turbine blade and a wind turbine generator, so that airflow enters the air inlet and is discharged from the air outlet at the rear end of a device cavity, the power generation equipment body in the device cavity is rapidly radiated, impurities of dust in the airflow are filtered, the phenomenon that the normal operation of the power generation equipment body is influenced due to the accumulated dust in the device cavity is avoided, the airflow is sprayed to a filter plate through a plurality of nozzles, and then the accumulated dust in the filter plate is sprayed out, and the equipment in the device cavity is prevented from being damaged due to long-time high temperature, so that the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
a wind turbine blade and a wind turbine generator comprise a shell, wherein a device cavity is arranged in the shell, a generating equipment body is fixedly arranged in the device cavity, a rotating shaft is rotatably arranged in the generating equipment body, the front end of the rotating shaft penetrates through the side wall of the device cavity and extends to the outside of the shell, a plurality of blades are fixedly arranged at the front end of the rotating shaft on the outside of the shell, an air inlet is arranged at the bottom of the shell, an air inlet mechanism for supplying air to the inside of the air inlet and further dissipating heat of the inside of the device cavity is arranged at the bottom of the shell, a fixing plate is fixedly arranged at the bottom of the shell below the air inlet, a filtering mechanism for filtering the air is arranged in the fixing plate, and an ash removing mechanism for cleaning dust after the blades stop rotating is arranged at the air inlet, the bottom of the shell is also provided with a warning mechanism for preventing the interior of the shell from being overheated.
Preferably, the air inlet mechanism comprises an arc-shaped block fixedly installed at the bottom of the shell, the air inlet direction of the air inlet is tangent to the arc line at the rear end of the arc-shaped block, and the rear end of the device cavity is provided with an air outlet matched with the air inlet.
After the airflow drives the rotating shaft to rotate, the air can be blown to the arc-shaped block at the bottom of the shell, according to the explanation of the 'coanda effect', the direction of fluid water flow or airflow is changed from leaving the original flowing direction to flowing along with the surface of a convex object, when fluid viscosity exists between the fluid and the surface of the object through which the fluid flows, the fluid can flow along the surface of the object, so that the airflow parallel to the bottom of the shell can be diverted to enter the inside of the air inlet and is discharged from the air outlet at the rear end of the device cavity, and the power generation equipment body in the device cavity is rapidly cooled.
Preferably, the filtering mechanism comprises a device groove arranged in the fixing plate, the upper end of the device groove is communicated with the bottom of the air inlet, and a filter plate used for filtering the air is slidably arranged in the device groove.
When the air current gets into the inside of air inlet, can drive the filter plate and overcome the elasticity of second spring and move upwards along the inside device groove of fixed plate for the filter plate can be stopped up whole air inlet, and filters the debris of the inside dust of air current, avoids the inside of device chamber to influence the normal work of power generating equipment body because of gathering the dust.
Preferably, the ash removing mechanism comprises two sliding chutes symmetrically arranged on the inner wall of the air inlet, connecting blocks are slidably arranged in the two sliding chutes, a baffle is fixedly arranged between the two connecting blocks, a plurality of groups of round openings are arranged in the baffle plate at equal intervals in the circumferential direction, one side of each connecting block is respectively and elastically connected with one side wall of each sliding groove through two first springs, the other side wall of each sliding groove is fixedly provided with an elastic air bag, one end of each elastic air bag is respectively and fixedly connected with the other side of each connecting block, two one-way valves are symmetrically arranged at the bottom of the elastic air bag, a plurality of spray heads are fixedly arranged at the inner top of the device groove at equal intervals, the one-way valve at one side only allows gas to flow from the elastic air bag to the spray heads, and clamping blocks are fixedly arranged on two sides of the filter plate and are elastically connected with the inner top wall of the device groove through second springs.
The baffle can also be pushed to move when the air flows through the air inlet, and then the elastic air bag is driven to deform, the air outside the elastic air bag is sucked into the elastic air bag through the one-way valve on one side, when no air flows, the elastic air bag can reset under the self elastic force and the elastic force of the first spring, and the air is sprayed to the plurality of spray heads through the one-way valve on the other side, and is sprayed to the filter plate through the plurality of spray heads, then, the accumulated dust inside the filter plate is sprayed out, the volume of the elastic air bag is continuously reduced when the air is sprayed out, the flow rate of the sprayed air is also reduced, but the elastic force of the second spring is constant, when the spraying force of the air and the elastic force of the spring are close to the gravity of the filter plate, the elastic air bag can move up and down in the device groove, vibration is formed, and the dust removal speed is accelerated.
Preferably, the warning mechanism comprises a sliding cavity arranged at the bottom of the shell, a sliding plug is arranged in the sliding cavity in a sealing and sliding manner, two first contacts electrically connected with each other are symmetrically and fixedly arranged on one side of the sliding plug, two second contacts are symmetrically and fixedly arranged on one side wall of the sliding cavity, evaporation liquid is filled between the other side wall of the sliding cavity and the sliding plug, an alarm is arranged outside the shell, and the two second contacts are communicated with an internal circuit of the alarm.
If the power generation equipment body in the device cavity generates heat abnormally, the temperature of the shell can rise quickly, then the evaporating liquid in the sliding cavity can be heated and evaporated, the sliding plug is pushed to move, the two first contacts can be in contact with the two second contacts respectively, then a circuit is switched on, then the alarm is started, monitoring personnel are reminded, and the equipment in the device cavity is prevented from being damaged due to long-time high temperature.
The utility model provides a wind turbine blade, includes a plurality of flabellums, every the lateral wall of flabellum all sets up flutedly, every reflection of light strip, every are all installed to the inside of recess the diapire fixed connection of both ends of reflection of light strip all through fastening bolt and recess.
After the rotating shaft drives the plurality of fan blades to rotate, the reflecting strips inside the grooves can be driven to rotate, according to the characteristics of fearing of light and color of birds, particularly fearing of the habit of flashing, the reflecting strips are driven and kept away from the shell, so that the aims of avoiding bird damage and ensuring safe operation of electric power are fulfilled, and after the fan blades rotate, the air flow at the rear ends of the fan blades is strong, and birds cannot overcome the resistance of the air flow and fly to the fan blades from the rear ends of the fan blades, so that a reflecting facility does not need to be arranged at the rear ends of the fan blades.
Compared with the prior art, the invention has the beneficial effects that:
1. after the airflow drives the rotating shaft to rotate, the airflow parallel to the bottom of the shell can be redirected into the air inlet and discharged from the air outlet at the rear end of the device cavity, and then the power generation equipment body in the device cavity is rapidly cooled.
2. When the air current gets into the inside of air inlet, spout the filter plate through a plurality of shower nozzles, spout the inside deposition of filter plate afterwards and remove to drive the filter plate and reciprocate in the inside of device groove, and form vibrations, and then accelerate the speed of removing dust.
3. If the power generation equipment body in the device cavity generates heat abnormally, the circuit can be switched on, then the alarm is started to remind monitoring personnel, and the damage of the equipment in the device cavity due to long-time high temperature is avoided.
4. After the rotating shaft drives the plurality of fan blades to rotate, the reflecting strips inside the grooves can be driven to rotate, according to the characteristics of fearing of light and color of birds, particularly fearing of the habit of flashing, the reflecting strips are driven and kept away from the shell, so that the aims of avoiding bird damage and ensuring safe operation of electric power are fulfilled, and after the fan blades rotate, the air flow at the rear ends of the fan blades is strong, and birds cannot overcome the resistance of the air flow and fly to the fan blades from the rear ends of the fan blades, so that a reflecting facility does not need to be arranged at the rear ends of the fan blades.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the structure at A of the present invention;
FIG. 3 is an enlarged view of the structure of the present invention at B;
FIG. 4 is an enlarged view of the structure at C of the present invention;
FIG. 5 is a schematic view of the structure of the baffle plate of the present invention;
FIG. 6 is a schematic view of the internal structure of the fixing plate according to the present invention;
FIG. 7 is a schematic view of a fan blade structure according to the present invention.
In the figure: 1. a housing; 2. a device cavity; 3. a power generating equipment body; 4. a rotating shaft; 5. a fan blade; 6. an arc-shaped block; 7. an air inlet; 8. a fixing plate; 9. a chute; 10. connecting blocks; 11. a baffle plate; 12. a first spring; 13. an elastic air bag; 14. a sliding plug; 15. a first contact; 16. a second contact; 17. evaporating the solution; 18. a device slot; 19. filtering the plate; 20. a clamping block; 21. a second spring; 22. a light-reflecting strip; 23. a slide chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 7, the present invention provides a wind turbine blade and a wind turbine generator, and the technical solution is as follows:
a wind turbine blade and a wind turbine generator comprise a shell 1, a device cavity 2 is arranged in the shell 1, a power generation equipment body 3 is fixedly arranged in the device cavity 2, a rotating shaft 4 is rotatably arranged in the power generation equipment body 3, the front end of the rotating shaft 4 penetrates through the side wall of the device cavity 2 and extends to the outside of the shell 1, a plurality of blades 5 are fixedly arranged at the front end of the rotating shaft 4 outside the shell 1, an air inlet 7 is arranged at the bottom of the shell 1, an air inlet mechanism for supplying air to the inside of the air inlet 7 and dissipating heat of the inside of the device cavity 2 is arranged at the bottom of the shell 1, a fixing plate 8 is fixedly arranged at the bottom of the shell 1 below the air inlet 7, a filtering mechanism for filtering the air is arranged in the fixing plate 8, and an ash removing mechanism for cleaning dust after the blades 5 stop rotating is arranged on the air inlet 7, the bottom of the housing 1 is also provided with a warning mechanism for preventing the interior of the housing 1 from being overheated.
Referring to fig. 1-2, as an embodiment of the present invention, the air inlet mechanism includes an arc block 6 fixedly installed at the bottom of the housing 1, an air inlet direction of the air inlet 7 is tangent to an arc line at the rear end of the arc block 6, and an air outlet matched with the air inlet 7 is provided at the rear end of the device cavity 2.
After the airflow drives the rotating shaft 4 to rotate, the air can also blow to the arc-shaped block 6 at the bottom of the shell 1, according to the explanation of the Kangda effect, the fluid water flow or the airflow changes from leaving the original flowing direction to flowing along with the convex object surface, when there is fluid viscosity between the fluid and the surface of the object over which it flows, the fluid will follow the surface of the object, the air flow parallel to the bottom of the housing 1 is re-directed into the interior of the air inlet 7, and out of the air outlet at the rear end of the device chamber 2, and because the high-speed airflow has an adsorption effect, the high-speed airflow can attract and carry away the air between the arc-shaped block 6 and the high-speed airflow, thereby generating a low pressure region at the inlet of the gas inlet 7, and the external gas strongly acts on the low pressure region, the gas entering the inside of the gas inlet 7 is accelerated, and the power generating equipment body 3 inside the device chamber 2 is rapidly radiated.
Referring to fig. 2 and 6, as an embodiment of the present invention, the filter mechanism includes a device groove 18 opened in the fixed plate 8, an upper end of the device groove 18 communicates with a bottom of the intake port 7, and a filter sheet 19 for filtering gas is slidably mounted in the device groove 18.
When the air flow enters the air inlet 7, the filter plate 19 is driven to move upwards along the device groove 18 in the fixed plate 8 against the elastic force of the second spring 21, so that the whole air inlet 7 can be blocked by the filter plate 19, impurities in the dust in the air flow are filtered, and the phenomenon that the normal operation of the power generation equipment body 3 is influenced by the accumulated dust in the device cavity 2 is avoided.
As an embodiment of the invention, referring to fig. 2-3 and fig. 5-6, the ash removing mechanism includes two chutes 9 symmetrically formed on the inner wall of the air inlet 7, connecting blocks 10 are slidably mounted inside the two chutes 9, a baffle 11 is fixedly mounted between the two connecting blocks 10, a plurality of sets of round openings are formed in the baffle 11 at equal intervals in the circumferential direction, one side of each of the two connecting blocks 10 is elastically connected with one side wall of each of the two chutes 9 through two first springs 12, the other side wall of each of the two chutes 9 is fixedly mounted with an elastic airbag 13, one end of each of the two elastic airbags 13 is fixedly connected with the other side of each of the two connecting blocks 10, two check valves are symmetrically arranged at the bottom of each of the elastic airbags 13, a plurality of nozzles are fixedly mounted at equal intervals on the inner top of the device groove 18, one check valve only allows gas to flow from the elastic airbag 13 to the nozzles, and fixture blocks 20 are fixedly mounted on both sides of the filter plate 19, both latches 20 are elastically connected to an inner top wall of the device groove 18 by a second spring 21.
When the air flow passes through the air inlet 7, the baffle 11 is pushed to move, and the elastic air bag 13 is driven to deform, the gas outside the elastic bag 13 is sucked into the inside of the elastic bag 13 through the one-way valve on one side, in the absence of air flow, the elastic air bag 13 is restored by its own elastic force and the elastic force of the first spring 12, and the gas is sprayed to a plurality of spray heads through the one-way valve at the other side, and is sprayed to the filter plate 19 through a plurality of spray heads, and then the dust deposition inside the filter plate 19 is sprayed, because the volume of the elastic air bag 13 is continuously reduced when the gas is sprayed, therefore, the flow rate of the ejected gas is also reduced, but the elastic force of the second spring 21 is constant, and when the ejection force of the gas and the elastic force of the spring are close to the gravity of the filter plate 19, the filter plate 19 moves up and down inside the device groove 18 and vibrates, thereby accelerating the dust removal rate.
Referring to fig. 4, as an embodiment of the present invention, the warning mechanism includes a sliding cavity 23 opened at the bottom of the housing 1, a sliding plug 14 is hermetically and slidably installed inside the sliding cavity 23, two first contacts 15 electrically connected with each other are symmetrically and fixedly installed on one side of the sliding plug 14, two second contacts 16 are symmetrically and fixedly installed on one side wall of the sliding cavity 23, an evaporation liquid 17 is filled between the other side wall of the sliding cavity 23 and the sliding plug 14, an alarm is further provided outside the housing 1, and both the two second contacts 16 are communicated with an internal circuit of the alarm.
Because the operating temperature of the wind generating set, the temperature of the oil of the gear box is normal oil below 80 ℃, and pre-alarming is started when the temperature is higher than 80 ℃, so that the evaporated liquid 17 in the sliding cavity 23 is ethanol, the boiling point of the ethanol is 78 ℃, so that when abnormal temperature rise occurs in the device cavity 2, the evaporated liquid 17 can be quickly gasified and timely responds, if the power generation equipment body 3 in the device cavity 2 abnormally generates heat, the temperature of the shell 1 can be quickly increased, then the ethanol in the sliding cavity 23 can be heated and evaporated, and further the sliding plug 14 is pushed to move, and the two first contacts 15 can be respectively contacted with the two second contacts 16, so that a circuit is conducted, then the alarm is started, monitoring personnel are reminded, and the equipment in the device cavity 2 is prevented from being damaged due to long-time high temperature.
Referring to fig. 7, a wind turbine blade includes a plurality of flabellums 5, and the lateral wall of every flabellum 5 all sets up flutedly, and the inside of every recess all installs reflection of light strip 22, and the diapire fixed connection of both ends of every reflection of light strip 22 all through fastening bolt and recess.
After the rotating shaft 4 drives the fan blades 5 to rotate, the reflecting strips 22 inside the grooves can be driven to rotate, according to the characteristics of fearing of light and color of birds, particularly fearing of flashing, the reflecting strips are driven and kept away from the shell 1, so that the aims of preventing bird damage and ensuring safe operation of electric power are fulfilled, and due to the fact that the fan blades 5 rotate, air flow at the rear ends of the fan blades 5 is strong, birds cannot overcome resistance of the air flow and fly to the fan blades 5 from the rear ends of the fan blades 5, and therefore a reflecting facility does not need to be arranged at the rear ends of the fan blades 5.
The working principle is as follows: after the airflow drives the rotating shaft 4 to rotate, the air will also blow towards the arc-shaped block 6 at the bottom of the housing 1, according to the explanation of the "coanda effect", the fluid water flow or the airflow changes from leaving the original flowing direction to flowing along with the convex object surface, when the fluid and the object surface through which the fluid flows have fluid viscosity, the fluid will flow along the object surface, the airflow parallel to the bottom of the housing 1 will be diverted into the air inlet 7 and discharged from the air outlet at the rear end of the device cavity 2, and then the power generation equipment body 3 in the device cavity 2 will be rapidly cooled, when the airflow enters the air inlet 7, the filter plate 19 will be driven to overcome the elastic force of the second spring 21 and move upwards along the device groove 18 in the fixed plate 8, so that the filter plate 19 can block the whole air inlet 7, and filter the dust and impurities in the airflow, meanwhile, when the air flow passes through the air inlet 7, the baffle plate 11 is pushed to move, the elastic air bag 13 is driven to deform, the air outside the air bag 13 is sucked into the elastic air bag 13 through the one-way valve on one side, when no air flow exists, the elastic air bag 13 is reset under the self elastic force and the elastic force of the first spring 12, the air is sprayed to the plurality of spray heads through the one-way valve on the other side and is sprayed to the filter plate 19 through the plurality of spray heads, then the accumulated dust in the filter plate 19 is sprayed out, the volume of the elastic air bag 13 is continuously reduced during air spraying, the flow rate of the sprayed air is also reduced, but the elastic force of the second spring 21 is constant, when the spraying force of the air and the elastic force of the spring are similar to the gravity of the filter plate 19, the filter plate 19 moves up and down in the device groove 18, vibration is formed, and the dust removal rate is accelerated, if the power generation equipment body 3 in the device cavity 2 generates heat abnormally, the temperature of the shell 1 can rise rapidly, then the evaporation liquid 17 in the sliding cavity 23 is heated and evaporated, and then the sliding plug 14 is pushed to move, and the two first contacts 15 can be respectively contacted with the two second contacts 16, so that a circuit is conducted, then the alarm is started, monitoring personnel are reminded, and the damage of the equipment in the device cavity 2 due to long-time high temperature is avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A wind turbine generator comprising a housing (1), characterized in that: the device comprises a shell (1), a device cavity (2) is formed in the shell (1), a power generation equipment body (3) is fixedly arranged in the device cavity (2), a rotating shaft (4) is rotatably arranged in the power generation equipment body (3), the front end of the rotating shaft (4) penetrates through the side wall of the device cavity (2) and extends to the outside of the shell (1), a plurality of fan blades (5) are fixedly arranged at the front end of the rotating shaft (4) on the outside of the shell (1), an air inlet (7) is formed in the bottom of the shell (1), an air inlet mechanism for supplying air to the inside of the air inlet (7) and further dissipating heat of the inside of the device cavity (2) is arranged at the bottom of the shell (1), a fixing plate (8) is fixedly arranged below the air inlet (7), and a filtering mechanism for filtering air is arranged in the fixing plate (8), the dust removing mechanism is arranged on the air inlet (7) and used for cleaning dust after the fan blades (5) stop rotating, and the warning mechanism used for preventing the interior of the shell (1) from being overheated is further arranged at the bottom of the shell (1).
2. A wind turbine generator according to claim 1, wherein: the air inlet mechanism comprises an arc-shaped block (6) fixedly installed at the bottom of the shell (1), the air inlet direction of the air inlet (7) is tangent to the rear end arc of the arc-shaped block (6), and the rear end of the device cavity (2) is provided with an air outlet matched with the air inlet (7).
3. A wind turbine generator according to claim 1, wherein: the filtering mechanism comprises a device groove (18) arranged inside the fixing plate (8), the upper end of the device groove (18) is communicated with the bottom of the air inlet (7), and a filter plate (19) used for filtering air is slidably arranged inside the device groove (18).
4. A wind turbine generator according to claim 3, wherein: the ash removing mechanism comprises two sliding grooves (9) symmetrically arranged on the inner wall of an air inlet (7), wherein two sliding grooves (9) are symmetrically arranged inside the sliding grooves (9) and are provided with connecting blocks (10), a baffle (11) is fixedly arranged between the two connecting blocks (10) jointly, a plurality of groups of round openings are formed in the baffle (11) in the circumferential direction at equal intervals, one side of each connecting block (10) is elastically connected with one side wall of the two sliding grooves (9) through two first springs (12), another side wall of each sliding groove (9) is fixedly provided with an elastic air bag (13), one end of each elastic air bag (13) is fixedly connected with the other side of the two connecting blocks (10), the bottom of each elastic air bag (13) is symmetrically provided with two one-way valves, a plurality of spray heads are fixedly arranged at the inner tops of the device grooves (18) at equal intervals, one side of the one-way valves only allow gas to flow from the elastic air bags (13) to the spray heads, the two sides of the filter plate (19) are fixedly provided with fixture blocks (20), and the two fixture blocks (20) are elastically connected with the inner top wall of the device groove (18) through second springs (21).
5. A wind turbine generator according to claim 1, wherein: the warning mechanism is including offering in sliding chamber (23) of casing (1) bottom, the inside seal slidable mounting of sliding chamber (23) has sliding plug (14), the symmetrical fixed mounting in one side of sliding plug (14) has two first contacts (15) of electric connection each other, a lateral wall symmetry fixed mounting of sliding chamber (23) has two second contacts (16), it has evaporating liquid (17) still to fill between another lateral wall of sliding chamber (23) and sliding plug (14), the outside of casing (1) still is equipped with the siren, two second contact (16) all are linked together with the internal circuit of siren.
6. A wind turbine blade adapted for use in a wind turbine generator according to any of claims 1-5: including a plurality of flabellums (5), every the lateral wall of flabellum (5) all sets up flutedly, every reflection of light strip (22), every are all installed to the inside of recess diapire fixed connection through fastening bolt and recess at the both ends of reflection of light strip (22).
CN202111039133.6A 2021-09-06 2021-09-06 Wind turbine blade and wind turbine generator Pending CN113958446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111039133.6A CN113958446A (en) 2021-09-06 2021-09-06 Wind turbine blade and wind turbine generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111039133.6A CN113958446A (en) 2021-09-06 2021-09-06 Wind turbine blade and wind turbine generator

Publications (1)

Publication Number Publication Date
CN113958446A true CN113958446A (en) 2022-01-21

Family

ID=79461156

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111039133.6A Pending CN113958446A (en) 2021-09-06 2021-09-06 Wind turbine blade and wind turbine generator

Country Status (1)

Country Link
CN (1) CN113958446A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117212084A (en) * 2023-10-23 2023-12-12 中国电建集团重庆工程有限公司 Heat abstractor of wind driven generator
CN117212084B (en) * 2023-10-23 2024-07-02 中国电建集团重庆工程有限公司 Heat abstractor of wind driven generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117212084A (en) * 2023-10-23 2023-12-12 中国电建集团重庆工程有限公司 Heat abstractor of wind driven generator
CN117212084B (en) * 2023-10-23 2024-07-02 中国电建集团重庆工程有限公司 Heat abstractor of wind driven generator

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