CN112031991B - Fan blade cleaning device for wind driven generator - Google Patents
Fan blade cleaning device for wind driven generator Download PDFInfo
- Publication number
- CN112031991B CN112031991B CN202010996346.7A CN202010996346A CN112031991B CN 112031991 B CN112031991 B CN 112031991B CN 202010996346 A CN202010996346 A CN 202010996346A CN 112031991 B CN112031991 B CN 112031991B
- Authority
- CN
- China
- Prior art keywords
- pipe
- cleaning
- fan blade
- hole
- blade body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 75
- 238000007789 sealing Methods 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000010248 power generation Methods 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 241000883990 Flabellum Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a fan blade cleaning device for a wind driven generator, and relates to the technical field of wind power generation. The invention comprises a fan blade body; a cavity is arranged in the fan blade body; through holes are uniformly distributed on the upper surface and the lower surface of the fan blade body; a rotating pipe is rotationally connected in the cavity; the side wall of the rotating pipe is provided with a straight notch corresponding to the through hole; a plurality of pairs of cam disks are fixed on the outer wall of the rotating pipe; the surface of the cam disc is provided with an arc-shaped notch; the inner pipe is rotationally connected in the rotating pipe; the side wall of the inner pipe is connected with a branch pipe; the branch pipe is sleeved with a cleaning pipe; a cover plate is fixed on the end surface of the cleaning pipe; a plurality of cleaning holes are arranged on the circumferential array of the side wall of the cleaning pipe; the outer wall of the cleaning pipe is fixed with a guide post matched with the arc-shaped notch. According to the invention, the rotating pipe, the inner pipe and the cleaning pipe are arranged, the cleaning pipe extends out of the surface of the fan blade body by utilizing the rotation of the rotating pipe, and the problem that the structural stability and the power generation efficiency are influenced because foreign matters such as dust are easily accumulated on the surface of the existing fan blade is solved by cleaning.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a fan blade cleaning device for a wind power generator.
Background
At present, the wind power generation technology is rapidly developed, and the wind power generator is generally installed in open areas such as high mountains, frontier areas or coastal areas. Due to the fact that the area is far away and the meteorological conditions are often severe, dust, foreign matters and the like are often accumulated on the surface of a blade of the wind driven generator, or the phenomenon that the blade is easy to freeze in winter is easily generated. Therefore, the weight of the fan blades is easy to change and differ, the fan blades cannot be well balanced, the wind driven generator vibrates in the rotating process, and the overall structural stability of the generator set is affected.
Meanwhile, the weight of the fan blade is increased, so that the load borne by the connecting part is increased, and the service life of the connecting part is influenced. After the surface of the fan blade is covered with foreign matters such as dust for a long time, the angle of the curved surface of the fan blade is changed, so that the aerodynamic performance of the fan blade is influenced, and the overall power generation efficiency is influenced.
Therefore, the device for cleaning the fan blades of the wind driven generator is urgently needed to be realized, the purpose of cleaning the fan blades is easily realized, and the stability and the power generation efficiency of the wind driven generator are ensured.
Disclosure of Invention
The invention aims to provide a fan blade cleaning device for a wind driven generator, which is characterized in that a rotating pipe, an inner pipe and a cleaning pipe are arranged, the cleaning pipe extends out of the surface of a fan blade body by utilizing the rotation of the rotating pipe, and the problem that the structural stability and the generating efficiency are influenced because foreign matters such as dust are easily accumulated on the surface of the existing fan blade is solved by cleaning.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a fan blade cleaning device for a wind driven generator, which comprises a fan blade body; a cavity is formed in the fan blade body; the upper surface and the lower surface of the fan blade body are uniformly provided with through holes which correspond to each other one by one and are communicated with the cavity; a rotating pipe is rotationally connected in the cavity; the circumferential side surface of the rotating pipe is fixedly connected with a driven wheel; the driven wheel is in transmission connection with a driving device;
the side wall of the rotating pipe is provided with a straight notch corresponding to the through hole; the straight notch is arranged along the circumferential direction of the rotating pipe; the outer wall of the rotating pipe is fixedly connected with a plurality of pairs of cam disks; each pair of cam discs is symmetrically arranged relative to the straight slot; the surface of the cam disc is provided with an arc-shaped notch corresponding to the through hole; one end of the arc-shaped notch is close to the rotating pipe, and the other end of the arc-shaped notch is far away from the rotating pipe;
the inner wall of the rotating pipe is rotatably connected with an inner pipe; the side wall of the inner pipe is connected with a branch pipe in clearance fit with the straight notch; the branch pipe is sleeved with a cleaning pipe;
the outer wall of the cleaning pipe is in clearance fit with the through hole; the end surface of the cleaning pipe is fixedly connected with a cover plate; the cover plate is used for sealing the through hole; a plurality of cleaning holes are formed in the circumferential array of the side wall of the cleaning pipe; the outer wall of the cleaning pipe is fixedly connected with a guide pillar in clearance fit with the arc-shaped notch.
Furthermore, the through hole is in a horn-shaped structure from inside to outside.
Furthermore, the outer wall of the cleaning pipe close to the end of the cover plate is of a circular truncated cone-shaped structure matched with the through hole.
Furthermore, the surface of the cover plate is a curved surface structure matched with the outer surface of the fan blade body.
Furthermore, a sealing sleeve is fixedly connected to the peripheral side surface of the cleaning pipe; the peripheral side surface of the sealing sleeve is in interference fit with the through hole.
Furthermore, the included angle between the opening direction of the cleaning hole and the surface of the fan blade body is an acute angle.
The invention has the following beneficial effects:
the cleaning pipe is connected with the cleaning pipe through the inner pipe, the cleaning pipe extends out of the fan blade body by utilizing the rotation of the rotating pipe, and the surface of the fan blade body is cleaned through the cleaning hole, so that the condition that dust or foreign matters are accumulated on the surface of the fan blade is effectively avoided, and the integral structural stability of the generator is effectively ensured.
Meanwhile, the surface of the fan blade body keeps good aerodynamic performance through cleaning, and the overall power generation efficiency is effectively guaranteed.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a blade cleaning device for a wind turbine according to the present invention;
FIG. 2 is a front view of the structure of FIG. 1;
FIG. 3 is an enlarged view of the structure of the portion B in FIG. 1;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 5 is an enlarged view of the structure of the portion C in FIG. 4;
FIG. 6 is a schematic view of the structure of the rotating tube, the inner tube and the cleaning tube;
FIG. 7 is a schematic view of the rear view of FIG. 6;
FIG. 8 is a schematic view of the inner tube and the cleaning tube;
in the drawings, the components represented by the respective reference numerals are listed below:
1-fan blade body, 2-rotating tube, 3-inner tube, 4-cleaning tube, 101-chamber, 102-through hole, 201-driven wheel, 202-driving device, 203-straight notch, 204-cam disc, 205-arc notch, 301-branch tube, 401-cover plate, 402-cleaning hole, 403-guide column, 404-sealing sleeve.
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 "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting the present invention.
Referring to fig. 1-3, the present invention relates to a blade cleaning device for a wind power generator, which includes a blade body 1; the inside cavity 101 that has seted up of flabellum body 1, cavity 101 sets up along flabellum body 1 length direction. The upper surface and the lower surface of the fan blade body 1 are uniformly provided with through holes 102 corresponding to each other, the through holes 102 are uniformly distributed along the length direction of the fan blade body 1, and the through holes 102 are communicated with the cavity 101.
The chamber 101 is rotatably connected to a rotating tube 2 through a bearing housing. The peripheral side surface of the rotating tube 2 is fixedly connected with a driven wheel 201; the driven wheel 201 is connected with a driving device 202 in a transmission mode, the driven wheel 201 can be a gear, the driving device 202 can be a motor, and an output shaft of the motor is connected with a driving gear and meshed with the driven wheel 201 to achieve transmission, so that the rotating pipe 2 is driven to rotate.
As shown in fig. 4-7, the side wall of the rotating tube 2 is provided with a straight notch 203 at a position corresponding to the through hole 102; the notch 203 is provided along the circumferential direction of the rotating tube 2. A plurality of pairs of cam discs 204 are welded on the outer wall of the rotating pipe 2; each pair of cam discs 204 is symmetrically arranged relative to the straight slot 203; the surface of the cam plate 204 is provided with an arc-shaped notch 205 corresponding to the through hole 102. The arc-shaped notch 205 has one end close to the rotary tube 2 and the other end away from the rotary tube 2 such that the center of the arc-shaped notch 205 is eccentrically disposed from the center of the cam plate 204.
As shown in fig. 5 and 8, the inner wall of the rotating pipe 2 is rotatably connected with an inner pipe 3, the inner pipe 3 is connected with a water pump or an air pump and the like through a hose or a pipeline, when the water pump is used, a water tank is arranged at a position, close to the fan blade body 1, connected with the rotating shaft, of the chamber 101 for storing water, and when a person overhauls the generator set regularly, cleaning water can be filled from the inside of the generator set. The side wall of the inner pipe 3 is welded with a branch pipe 301 which is in clearance fit with the straight notch 203; branch pipe 301 and inner tube 3 communicate each other, and the outer wall or the inner wall cover of branch pipe 301 are equipped with scavenge pipe 4, and are provided with the sealing washer between inner tube 3 and scavenge pipe 4, realize sealed effect.
The outer wall of the cleaning pipe 4 is in clearance fit with the through hole 102; a cover plate 401 is welded on the end face of the cleaning pipe 4; the cover plate 401 is used for sealing the through hole 102, and the surface of the cover plate 401 is a curved surface structure matched with the outer surface of the fan blade body 1, so that the surface of the fan blade body 1 forms a complete curved surface structure, and the fan blade body 1 is favorable for keeping good aerodynamic performance. A plurality of cleaning holes 402 are arranged on the circumferential array of the side wall of the cleaning pipe 4; the outer wall of the cleaning pipe 4 is welded with a guide post 403 which is in clearance fit with the arc-shaped notch 205.
As shown in fig. 5-7, when the surface of the fan blade body 1 needs to be cleaned, the rotating tube 2 rotates to drive the cam disc 204 to rotate clockwise, the arc-shaped notch 205 is matched with the guide post 403, so that the guide post 403 tends to move away from the center of the cam disc 204, the cleaning tube 4 is moved axially, and extends out of the surface of the fan blade body 1, at the moment, cleaning liquid or gas is injected into the inner pipe 3, enters the cleaning pipe 4 through the branch pipe 301 and is sprayed out from the cleaning hole 402, thereby realizing the cleaning of the surface of the fan blade body 1, and the opening direction of the cleaning hole 402 and the surface of the fan blade body 1 form an acute angle, so that the liquid or gas sprayed from the cleaning holes 402 can better impact the surface of the fan blade body 1, thereby improving the cleaning effect, all set up scavenge pipe 4 through upper surface and the lower surface at flabellum body 1, realize the comprehensive clearance to flabellum body 1.
After the cleaning, through reversal rotating tube 2 through arc notch 205 make guide pillar 403 be close to the guide pillar 403 centre of a circle gradually, that is to say, wash tub 4 axial displacement, and inside withdrawal perforating hole 102, at this moment, apron 401 hugs closely the perforating hole 102 port, realize sealed to perforating hole 102, prevent that the condition of rainwater or dust etc. entering cavity 101 from appearing, the port of perforating hole 102 can set to the shoulder hole form, make the thickness of apron 401 just in time with the shoulder hole cooperation, thereby owing to improve holistic sealed effect.
Meanwhile, the through hole 102 is in a trumpet-shaped structure from inside to outside. Moreover, the outer wall of the cleaning tube 4 close to the cover plate 401 is in a truncated cone-shaped structure matched with the through hole 102, so that the cleaning tube 4 can be better attached to the through hole 102 after being retracted into the through hole 102, the sealing performance is improved, and the position of the cleaning tube 4 is limited.
As another preferable scheme, a sealing sleeve 404 is fixedly connected to the peripheral side surface of the cleaning tube 4; the sealing sleeve 404 is in interference fit with the through hole 102 on the peripheral side surface, the sealing sleeve 404 can be a rubber sleeve, sealing between the cleaning tube 4 and the through hole 102 can be realized by using the sealing sleeve 404, and the situation that water flow enters the cavity 101 through the clearance between the cleaning tube 4 and the through hole 102 when the surface of the fan blade body 1 is cleaned can be prevented.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A fan blade cleaning device for a wind driven generator comprises a fan blade body (1); the method is characterized in that: a cavity (101) is formed in the fan blade body (1); the upper surface and the lower surface of the fan blade body (1) are uniformly provided with through holes (102) which correspond to each other one by one, and the through holes (102) are communicated with the cavity (101);
a rotating pipe (2) is rotationally connected in the chamber (101); the peripheral side surface of the rotating pipe (2) is fixedly connected with a driven wheel (201); the driven wheel (201) is in transmission connection with a driving device (202);
a straight notch (203) is formed in the side wall of the rotating pipe (2) corresponding to the through hole (102); the straight notch (203) is arranged along the circumferential direction of the rotating pipe (2); the outer wall of the rotating pipe (2) is fixedly connected with a plurality of pairs of cam disks (204); each pair of the cam plates (204) is symmetrically arranged relative to the straight notch (203); the surface of the cam disc (204) is provided with an arc-shaped notch (205) corresponding to the through hole (102); one end of the arc-shaped notch (205) is close to the rotating pipe (2), and the other end of the arc-shaped notch is far away from the rotating pipe (2);
the inner wall of the rotating pipe (2) is rotatably connected with an inner pipe (3); the side wall of the inner pipe (3) is connected with a branch pipe (301) in clearance fit with the straight notch (203); the branch pipe (301) is sleeved with a cleaning pipe (4);
the outer wall of the cleaning pipe (4) is in clearance fit with the through hole (102); the end face of the cleaning pipe (4) is fixedly connected with a cover plate (401); the cover plate (401) is used for sealing the through hole (102); a plurality of cleaning holes (402) are arrayed on the circumferential array of the side wall of the cleaning pipe (4); the outer wall of the cleaning pipe (4) is fixedly connected with a guide post (403) in clearance fit with the arc-shaped notch (205).
2. The blade cleaning device for a wind power generator according to claim 1, wherein the through hole (102) is flared from inside to outside.
3. The fan blade cleaning device for the wind driven generator is characterized in that the outer wall of the cleaning pipe (4) close to the cover plate (401) is of a circular truncated cone-shaped structure matched with the through hole (102).
4. The blade cleaning device for the wind driven generator according to claim 1 or 3, wherein the surface of the cover plate (401) is a curved surface structure matched with the outer surface of the blade body (1).
5. The fan blade cleaning device for the wind driven generator is characterized in that a sealing sleeve (404) is fixedly connected to the peripheral side surface of the cleaning pipe (4); the circumferential side surface of the sealing sleeve (404) is in interference fit with the through hole (102).
6. The fan blade cleaning device for the wind driven generator according to claim 1, wherein the opening direction of the cleaning hole (402) forms an acute angle with the surface of the fan blade body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010996346.7A CN112031991B (en) | 2020-09-21 | 2020-09-21 | Fan blade cleaning device for wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010996346.7A CN112031991B (en) | 2020-09-21 | 2020-09-21 | Fan blade cleaning device for wind driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112031991A CN112031991A (en) | 2020-12-04 |
| CN112031991B true CN112031991B (en) | 2021-05-25 |
Family
ID=73574363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010996346.7A Active CN112031991B (en) | 2020-09-21 | 2020-09-21 | Fan blade cleaning device for wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112031991B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052264A (en) * | 2009-11-05 | 2011-05-11 | 通用电气公司 | Systems and method of assembling an air distribution system for use in a rotor blade of a wind turbine |
| CN102052247A (en) * | 2009-11-05 | 2011-05-11 | 通用电气公司 | Method for operating a wind turbine with reduced blade fouling |
| CN102052248A (en) * | 2009-11-05 | 2011-05-11 | 通用电气公司 | Systems and method for operating an active flow control system for a wind turbine |
| CN108087216A (en) * | 2017-12-19 | 2018-05-29 | 北京金风科创风电设备有限公司 | Cleaning device, blade, wind generating set and blade cleaning method |
| EP3514370A1 (en) * | 2018-01-17 | 2019-07-24 | General Electric Company | A rotor blade assembly and a wind turbine having the rotor blade assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8449255B2 (en) * | 2010-03-21 | 2013-05-28 | Btpatent Llc | Wind turbine blade system with air passageway |
-
2020
- 2020-09-21 CN CN202010996346.7A patent/CN112031991B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052264A (en) * | 2009-11-05 | 2011-05-11 | 通用电气公司 | Systems and method of assembling an air distribution system for use in a rotor blade of a wind turbine |
| CN102052247A (en) * | 2009-11-05 | 2011-05-11 | 通用电气公司 | Method for operating a wind turbine with reduced blade fouling |
| CN102052248A (en) * | 2009-11-05 | 2011-05-11 | 通用电气公司 | Systems and method for operating an active flow control system for a wind turbine |
| CN108087216A (en) * | 2017-12-19 | 2018-05-29 | 北京金风科创风电设备有限公司 | Cleaning device, blade, wind generating set and blade cleaning method |
| EP3514370A1 (en) * | 2018-01-17 | 2019-07-24 | General Electric Company | A rotor blade assembly and a wind turbine having the rotor blade assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112031991A (en) | 2020-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4915580A (en) | Wind turbine runner impulse type | |
| CN108581650A (en) | A kind of ultrasound longitrorse vibration grinding device | |
| CN112031991B (en) | Fan blade cleaning device for wind driven generator | |
| KR20020023795A (en) | Rotation angle transfer mechanism of a blade using vertical axis wind power generator | |
| CN112049748A (en) | Water turbine and hydroelectric generator | |
| US20060045733A1 (en) | Water turbine motor with outlet buffer reservoir | |
| CN110755967A (en) | Dust collector for one-machine dual-purpose building site | |
| CN111828227A (en) | Horizontal hydraulic turbine set with additional filter component | |
| JPH09505782A (en) | Wheel direct drive small engine fluid coupling | |
| WO2006096091A1 (en) | Wind plant | |
| CN2921349Y (en) | One-direction rotary turbine set capable of utilizing non-directional wind power sea wave tide power | |
| CN108057703A (en) | A kind of hydrodynamic force photovoltaic battery panel single head cleaning brush | |
| CN211217880U (en) | Cleaning mechanism and air conditioner | |
| CN107812733A (en) | A kind of hydrodynamic force photovoltaic battery panel cleaning brush | |
| CN212003412U (en) | Pipeline hydroelectric generator set | |
| CN210637183U (en) | Water turbine with energy-saving function | |
| CN106762332B (en) | Direct-flushing general water turbine and bucket thereof | |
| CN205315310U (en) | Water drive does not have electrical drainage fan assembly of airing exhaust | |
| CN2722712Y (en) | Water power rotary brush | |
| CN217002125U (en) | Gravity-assisted vertical water turbine and water resource utilization device using same | |
| CN205315304U (en) | Water drive does not have electrical drainage fan drive | |
| CN218151223U (en) | High-pressure water cone kettle wheel machine | |
| KR101300205B1 (en) | Apparatus for converting fluid energy | |
| CN216477646U (en) | Detachable impeller for hydroelectric generating set | |
| CN2660985Y (en) | Gyroscopic cleaning brush (2) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |