CN111156335B - Wind-powered electricity generation blade root platform respiratory device, wind-powered electricity generation blade and wind turbine generator system - Google Patents
Wind-powered electricity generation blade root platform respiratory device, wind-powered electricity generation blade and wind turbine generator system Download PDFInfo
- Publication number
- CN111156335B CN111156335B CN202010006784.4A CN202010006784A CN111156335B CN 111156335 B CN111156335 B CN 111156335B CN 202010006784 A CN202010006784 A CN 202010006784A CN 111156335 B CN111156335 B CN 111156335B
- Authority
- CN
- China
- Prior art keywords
- base
- wind
- flexible valve
- upper cover
- blade
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
- F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
-
- 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
Abstract
The invention discloses a wind power blade root platform breathing device, a wind power blade comprising the same and a wind power generator set; the breathing device comprises a base, a flexible valve plate and an upper cover; the base is provided with a middle through hole, the flexible valve plate covers the middle through hole, and one end of the flexible valve plate is connected with the upper surface of the base; a plurality of flow guide windows are arranged on the periphery of the upper cover; the upper cover covers the flexible valve plate, and the bottom of the upper cover is fixedly connected with the upper surface of the base. The wind power blade root platform breathing device has a guiding and conducting function, the guiding window is large, the internal and external pressure balance of the blade can be adjusted in a short time, and the blade cannot be damaged due to the increase of the pressure of an inner cavity under the load condition; and the wind power blade root platform breathing device is unidirectionally guided, so that the introduction of dust during field storage can be effectively prevented, and the wind power blade root platform breathing device is suitable for popularization and application.
Description
Technical Field
The invention relates to the field of wind power blades, in particular to a wind power blade root platform breathing device, a wind power blade and a wind turbine generator.
Background
At present, the root platform is usually installed at the root of the wind power blade, and the main function is to facilitate later maintenance and avoid sundries such as die-filling glue scattered in the inner cavity of the blade from sliding into the hub to influence mechanical and electrical properties. The existing root platform is mainly formed by manually pasting a glass steel plate and the root, and has good sealing performance. Under the condition of load, local deformation of a large-sized blade is obvious, so that the pressure in an inner cavity of the blade is increased sometimes, and the blade can be damaged repeatedly for a long time. At present, in some blade plants in China, a certain method for balancing air hole component devices is adopted at the relevant positions of a root platform so as to balance the internal pressure and the external pressure of the blades. However, the assembly has the defects that the air holes are small, the effect is not obvious, and dust is easy to introduce during field storage due to the bidirectional conduction of the holes.
Therefore, it is obvious that the above-mentioned conventional breathing apparatus for a wind turbine blade root platform still has inconveniences and defects in structure, method and use, and further improvement is urgently needed. How to create a new wind power blade root platform breathing device which can adjust the internal and external pressure balance of the blade in a short time and is not easy to lead in dust becomes the urgent need for improvement in the current industry.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a wind power blade root platform breathing device with excellent performance, which can adjust the internal and external pressure balance of a blade in a short time and is not easy to introduce dust.
In order to solve the technical problems, the invention adopts the following technical scheme:
a wind power blade root platform breathing device comprises a base, a flexible valve plate and an upper cover; the base is provided with a middle through hole, the flexible valve plate covers the middle through hole, and one end of the flexible valve plate is connected with the upper surface of the base; a plurality of flow guide windows are arranged on the periphery of the upper cover; the upper cover covers the flexible valve plate, and the bottom of the upper cover is fixedly connected with the upper surface of the base.
As a further improvement of the invention, the upper cover is of a round cover structure, and a plurality of openings are formed in the middle upper part of the periphery of the round cover to form the flow guide window.
Further, the height of the upper cover is set to ensure that the fully opening angle of the flexible valve plate does not exceed 90 degrees; the height of the upper cover is 10-40 mm.
Furthermore, the upper cover is made of thermoplastic or thermosetting resin or composite material; the upper cover is fixedly connected with the upper surface of the base in a bonding or clamping groove mode; the flexible valve plate is a silica gel sheet or a rubber sheet; the thickness of the flexible valve plate is 1mm-5 mm.
Further, the base upper surface of middle through-hole periphery department is provided with ascending protruding edge, ascending protruding edge is the highest at the opening side of flexible valve piece, reduces towards the link of flexible valve piece downwards to the slope gradually.
Furthermore, one end of the flexible valve plate is fixedly connected with the base through a resin nail or a self-locking screw.
Further, the base is a rectangular or square thermoplastic or thermosetting sheet material, and reinforcing ribs are arranged on the sheet material.
In addition, the invention also provides the wind power blade, so that the blade cannot be damaged due to the increase of the pressure of the inner cavity under the load condition.
In order to solve the technical problem, the invention provides a wind power blade, wherein a root platform is arranged at the root part of the blade, a breathing hole is preset on the root platform, the wind power blade root platform breathing device further comprises a base of the breathing device, the base is connected with the root platform, and a middle through hole in the base is communicated with the breathing hole in the root platform.
Further, the breathing hole of the root platform is 40-80mm in diameter; one or more of the root platform breathing apparatus; the root platform breathing device is arranged in the center of the root platform or symmetrically distributed on two sides of the center of the root platform.
In another aspect, the invention further provides a wind turbine generator, so that the blade cannot be damaged due to the fact that the pressure of the inner cavity of the blade is increased under the load condition.
In order to solve the technical problem, the invention provides a wind turbine generator comprising the wind turbine blades.
By adopting the technical scheme, the invention at least has the following advantages:
the invention provides a wind power blade root platform breathing device with excellent performance, which has a guiding and conducting function, is large in a guiding window, and can be used for adjusting the internal and external pressure balance of a blade in a short time, so that the blade cannot be damaged due to the increase of the pressure in an inner cavity under the load condition. And the breathing device of the wind power blade root platform conducts flow in a single direction, so that the introduction of dust during field storage can be effectively prevented.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic overall structure diagram of a wind turbine blade root platform breathing apparatus according to an embodiment of the present invention;
FIG. 2 is a front view of the electro-pneumatic blade root platform breathing apparatus of FIG. 1;
FIG. 3 is a top view of the electro-pneumatic blade root platform breathing apparatus of FIG. 1;
fig. 4 is a bottom view of the electro-pneumatic blade root platform breathing apparatus of fig. 1.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 to 4, the breathing apparatus for a wind turbine blade root platform provided by this embodiment includes a base 1, a flexible valve sheet 2, and an upper cover 3.
The base 1 is composed of a rectangular or square thermoplastic or thermosetting sheet material and can be prepared by processes of injection molding of thermoplastic resins such as PE and PP or pouring of epoxy resin and unsaturated polyester or hand pasting, a middle through hole 11 is formed in the bottom of the base 1 and has a reinforcing rib structure, the reinforcing ribs can be made of the same material as the base 1, are mutually crossed and vertical and are fixed with the base 1, and are subsequently used for being connected with a breathing hole pre-punched by a blade root platform to enable the breathing hole to be communicated with the interior of a blade.
The upper surface of the base 1 is provided with a flexible valve plate 2 which can be opened along with the increase of internal pressure, the flexible valve plate 2 can be circular or rectangular, the thickness can be 1mm-5mm, the flexible valve plate 2 can be a silica gel sheet or a rubber sheet and the like, one end of the flexible valve plate 2 can be fixed with the base 1 through a fixing device such as a resin nail or a self-locking screw and the like, and the fixed end covers the middle through hole 11. In addition, the upper surface of the base at the periphery of the middle through hole 11 is provided with an upward convex edge 12, the upward convex edge 12 is highest at the opening side of the flexible valve plate 2, and gradually inclines downwards to the connecting end of the resin nail or the self-locking screw of the flexible valve plate 2.
The upper cover 3 is a cover body structure with a plurality of diversion windows 31 arranged on the periphery; preferably, the structure of the dome is provided, and the middle upper part of the periphery of the dome is provided with a plurality of openings to form the diversion window 31. The upper cover 3 is made of thermoplastic resin such as PE and PP, or prepared by processes such as injection molding of epoxy resin and unsaturated polyester infusion or hand pasting, is made of thermoplastic or thermosetting resin or composite material, covers the flexible valve plate 2 by the upper cover 3, and is fixedly connected with the upper surface of the base 1 at the bottom of the upper cover 3 by resin adhesive bonding or in a form of a clamping groove and the like; the card slots can be rectangular or in other shapes, and the number of the card slots can be 2-6.
Besides the flow guiding function, the upper cover 3 can ensure that the opening angle of the flexible valve plate 2 does not exceed 90 degrees, so that the flexible valve plate 2 cannot be closed again after the pressure is subsequently released. The height of the upper cover 3 is that the flexible valve plate 2 can completely prop against the upper cover when being completely opened, and the height of the box cover can be 10-40mm according to the size of the valve plate.
In the subsequent specific application, in the wind turbine generator, a breathing hole can be drilled in advance at the corresponding position of the root platform of the blade root of the wind turbine blade, the size diameter of the breathing hole is 40-80mm, and the size of the breathing hole can be specifically adjusted according to the size of the blade and the size of the root platform of the blade root; the breathing device can be connected with the root platform by adopting methods such as adhesive or self-locking screws and the like so as to be communicated (the middle through hole 11 is communicated with the breathing hole). The root platform breathing device can be loaded at the center of the root platform, or symmetrically distributed at two sides of the root platform, and can be one or two or more.
When large-scale wind-powered electricity generation blade under the load condition, local obvious deformation, blade inner chamber pressure increase, at this moment, open along with internal pressure increases the flexible valve piece, and derive through the water conservancy diversion window that sets up around the upper cover, have the direction and switch on the function, the water conservancy diversion window is great, can play the regulating action to the internal and external pressure balance of blade in the short time, makes the blade can not arouse the blade damage because of inner chamber pressure increases under the load condition. And because the existence of outside upper cover leads to the limit of opening of flexible valve block to be limited, does benefit to and resets and can effectively prevent the introduction of dust when the scene is deposited, and because flexible valve block covers on the base upper surface, consequently, it can only one-way switch on, can effectively prevent the introduction of dust when the scene is deposited.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.
Claims (9)
1. A wind power blade is characterized in that a root platform is arranged at the root of the blade, a breathing hole is preset in the root platform, and the wind power blade further comprises a breathing device, wherein the breathing device comprises a base, a flexible valve plate and an upper cover; the base is provided with a middle through hole, the flexible valve plate covers the middle through hole, and one end of the flexible valve plate is connected with the upper surface of the base; a plurality of flow guide windows are arranged on the periphery of the upper cover; the upper cover covers the flexible valve plate, and the bottom of the upper cover is fixedly connected with the upper surface of the base;
the base of the breathing device is connected with the root platform, and the middle through hole in the base is communicated with the breathing hole in the root platform.
2. The wind-powered electricity generation blade of claim 1, wherein the upper cover is a dome structure, and a plurality of openings are formed in the middle upper portion of the periphery of the dome to form the diversion window.
3. The wind power blade as claimed in claim 1, wherein the height of the upper cover is set to make the fully open angle of the flexible valve sheet not exceed 90 degrees; the height of the upper cover is 10-40 mm.
4. The wind-powered electricity generation blade of claim 1, wherein the upper cover material is thermoplastic or thermosetting resin or composite material; the upper cover is fixedly connected with the upper surface of the base in a bonding or clamping groove mode; the flexible valve plate is a silica gel sheet or a rubber sheet; the thickness of the flexible valve plate is 1mm-5 mm.
5. The wind turbine blade as claimed in claim 1, wherein the upper surface of the base at the periphery of the middle through hole is provided with an upward convex edge, the upward convex edge is highest at the opening side of the flexible valve sheet and gradually inclines downwards to be lowered towards the connecting end of the flexible valve sheet.
6. The wind-powered electricity generation blade of claim 1, wherein one end of the flexible valve sheet is fixedly connected with the base through a resin nail or a self-locking screw.
7. The wind blade as set forth in claim 1 wherein said base is a rectangular or square thermoplastic or thermoset sheet with reinforcing ribs disposed thereon.
8. The wind blade as set forth in claim 1 wherein the root platform has a breathing hole size diameter of 40-80 mm; one or more of the respiratory devices; the breathing device is arranged in the center of the root platform or symmetrically distributed on two sides of the center of the root platform.
9. Wind turbine comprising a wind turbine blade according to any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010006784.4A CN111156335B (en) | 2020-01-03 | 2020-01-03 | Wind-powered electricity generation blade root platform respiratory device, wind-powered electricity generation blade and wind turbine generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010006784.4A CN111156335B (en) | 2020-01-03 | 2020-01-03 | Wind-powered electricity generation blade root platform respiratory device, wind-powered electricity generation blade and wind turbine generator system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111156335A CN111156335A (en) | 2020-05-15 |
| CN111156335B true CN111156335B (en) | 2021-03-12 |
Family
ID=70561249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010006784.4A Active CN111156335B (en) | 2020-01-03 | 2020-01-03 | Wind-powered electricity generation blade root platform respiratory device, wind-powered electricity generation blade and wind turbine generator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111156335B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100910583B1 (en) * | 2009-03-03 | 2009-08-03 | (주)한국주조 | Wind power generator using solar heating |
| CN203915821U (en) * | 2014-06-11 | 2014-11-05 | 上海兴诺康纶纤维科技股份有限公司 | A kind of breather valve |
| CN203989554U (en) * | 2014-05-28 | 2014-12-10 | 张毅林 | A kind of mouth mask breather valve |
| CN207101659U (en) * | 2017-08-10 | 2018-03-16 | 李昕炜 | Breather valve and mouth mask |
| CN207765283U (en) * | 2017-11-20 | 2018-08-24 | 郑婷婷 | A kind of totally-enclosed wind power special transformer |
| CN209293971U (en) * | 2018-12-28 | 2019-08-23 | 重庆海装风电工程技术有限公司 | A kind of Wind turbines waste oil collecting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7070888B2 (en) * | 2017-09-19 | 2022-05-18 | トータルエアーサービス株式会社 | Wind power generator |
-
2020
- 2020-01-03 CN CN202010006784.4A patent/CN111156335B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100910583B1 (en) * | 2009-03-03 | 2009-08-03 | (주)한국주조 | Wind power generator using solar heating |
| CN203989554U (en) * | 2014-05-28 | 2014-12-10 | 张毅林 | A kind of mouth mask breather valve |
| CN203915821U (en) * | 2014-06-11 | 2014-11-05 | 上海兴诺康纶纤维科技股份有限公司 | A kind of breather valve |
| CN207101659U (en) * | 2017-08-10 | 2018-03-16 | 李昕炜 | Breather valve and mouth mask |
| CN207765283U (en) * | 2017-11-20 | 2018-08-24 | 郑婷婷 | A kind of totally-enclosed wind power special transformer |
| CN209293971U (en) * | 2018-12-28 | 2019-08-23 | 重庆海装风电工程技术有限公司 | A kind of Wind turbines waste oil collecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111156335A (en) | 2020-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106626182B (en) | Blade lightning receptor installation method, blade and wind generating set | |
| US11149708B2 (en) | Vaccuum-assisted mounting of vortex generator device on a wind turbine blade | |
| US20180038342A1 (en) | Vortex generators for wind turbine rotor blades | |
| CN111156335B (en) | Wind-powered electricity generation blade root platform respiratory device, wind-powered electricity generation blade and wind turbine generator system | |
| CN201247662Y (en) | Composite greatcoat type metal-oxide lighting arrester core body | |
| CN204349405U (en) | A kind of pyrocondensation cable sealing cap | |
| CN208028836U (en) | A kind of photovoltaic panel component with protection mechanism | |
| KR102054509B1 (en) | high altitude energy storage apparatus | |
| CN110318935B (en) | Floater protection device for shallow sea wave power generation equipment | |
| CN209233357U (en) | A kind of cable testing bridge | |
| CN201868250U (en) | Encapsulation lid of capacitor | |
| CN214543282U (en) | Pressure release device for inflating cabinet | |
| CN215377081U (en) | Insulating cross arm | |
| CN110794185A (en) | Protection boxboard for electric meter box | |
| CN111043121A (en) | Waveguide frequency converter mounting box and waveguide frequency converter line glue fixing tool | |
| CN214901552U (en) | Bridge crane remote control auxiliary device | |
| CN206154862U (en) | Peel off electromagnetic membrane's guarantor film protective layer's device | |
| CN215377082U (en) | Post insulator | |
| CN220086218U (en) | Protection device for energy storage component of wind driven generator | |
| CN215868819U (en) | Post insulator | |
| CN110836284A (en) | Vacuum negative pressure safety valve | |
| CN214506770U (en) | Stepping motor convenient for wiring | |
| CN219938092U (en) | Servo motor outlet structure | |
| CN205389168U (en) | Installation structure | |
| CN218542473U (en) | Vertical axis wind turbine |
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 |