CN114060236A - Pressure-equalizing exhaust device for wind power blade - Google Patents
Pressure-equalizing exhaust device for wind power blade Download PDFInfo
- Publication number
- CN114060236A CN114060236A CN202111551728.XA CN202111551728A CN114060236A CN 114060236 A CN114060236 A CN 114060236A CN 202111551728 A CN202111551728 A CN 202111551728A CN 114060236 A CN114060236 A CN 114060236A
- Authority
- CN
- China
- Prior art keywords
- end cover
- exhaust
- sleeve
- wind power
- equipartition
- 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.)
- Pending
Links
- 238000005192 partition Methods 0.000 claims abstract description 9
- 239000011049 pearl Substances 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 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
- 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
- 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
-
- 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
-
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the 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 provides a voltage-sharing exhaust device for a wind power blade, which comprises an end cover, a partition plate and an exhaust sleeve, wherein the end cover and the exhaust sleeve are both of a circular truncated cone-shaped shell structure with one open end, a plurality of bulges and exhaust holes are arranged on the shells of the end cover and the exhaust sleeve, and the bulges are circular arc-shaped elastic bulges; the end cover and the exhaust sleeve are detachably connected, then the partition plate is sleeved outside, and the end cover is communicated with the inner cavity of the exhaust sleeve. The pressure-equalizing exhaust device for the wind power blade is convenient to install, prevents the phenomenon that the exhaust holes block the crushing baffle plate in the operation process, and saves the maintenance cost of wind field personnel.
Description
Technical Field
The invention belongs to the technical field of wind power blades, and particularly relates to a pressure-equalizing exhaust device for a wind power blade.
Background
At present, in the operation and use process of a large-scale wind power blade, a pressure-equalizing exhaust device is arranged in a sealing area of the root part of the blade. However, after the blade runs for a period of time in a wind power plant, foreign matters such as residual adhesives and dust exist inside the blade, and the foreign matters can accumulate on the pressure-equalizing exhaust device day by day and block the exhaust hole, so that pressure difference exists between the inside and the outside of the blade, and the risk of blade damage is caused. According to the current actual demand, a product which can prevent the pressure-equalizing exhaust hole from being blocked and prolong the service life of the pressure-equalizing exhaust device is designed.
Disclosure of Invention
In view of this, the invention aims to provide a pressure-equalizing exhaust device for a wind turbine blade, so as to provide a device capable of preventing a pressure-equalizing exhaust hole on a mounting side of a partition board of the wind turbine blade from being blocked and prolonging the pressure-equalizing exhaust service life.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a voltage-sharing exhaust device for wind power blades comprises an end cover, a partition plate and an exhaust sleeve, wherein the end cover and the exhaust sleeve are both of a truncated cone-shaped shell structure with one open end, a plurality of bulges and exhaust holes are formed in the shells of the end cover and the exhaust sleeve, and the bulges are circular arc-shaped elastic bulges; the end cover and the exhaust sleeve are detachably connected, then the partition plate is sleeved outside, and the end cover is communicated with the inner cavity of the exhaust sleeve.
Furthermore, the end cover and the exhaust sleeve are made of elastic materials.
Further, the end cover includes end cover body, end cover boss, the end cover connecting portion of an organic whole structure, a plurality of end cover exhaust holes of equipartition and arch on the end cover body, end cover body top fixed mounting end cover boss, end cover boss top are equipped with the end cover connecting portion, and the end cover connecting portion are hollow cylinder structure, the crisscross recess and the locating piece that distribute of inside circumference of end cover connecting portion.
Further, exhaust sleeve includes a body structure's sleeve body, sleeve boss, a plurality of archs of sleeve body outside equipartition and sleeve exhaust hole, and the sleeve body is equipped with the sleeve boss, and the sleeve boss is the hollow cylinder structure, a plurality of spring card pearls of outer wall circumference equipartition and constant head tank, spring card pearl be used for with the recess joint, the constant head tank is used for placing the locating piece.
Furthermore, the number of the positioning blocks and the number of the positioning holes are three.
Furthermore, 24 sleeve exhaust holes are formed in the exhaust sleeve, and 6 end cover exhaust holes are formed in the outer end cover.
Furthermore, the exhaust sleeve equipartition three-layer sleeve exhaust hole, every layer equipartition is 8, and the outside end cover equipartition one deck end cover exhaust hole, every layer equipartition is 6, and the specification size, the number equipartition of inside and outside sleeve exhaust hole and end cover exhaust hole are the same.
Compared with the prior art, the pressure-equalizing exhaust device for the wind power blade has the following advantages:
(1) the pressure-equalizing exhaust device for the wind power blade is convenient to install, prevents the phenomenon that the exhaust holes block the crushing baffle plate in the operation process, and saves the maintenance cost of wind field personnel.
(2) According to the pressure-equalizing exhaust device for the wind power blade, the exhaust sleeve and the end cover are arranged in a circular truncated cone shape, so that on one hand, inner side exhaust is promoted, and on the other hand, foreign matters are prevented from being attached to air holes. The arc-shaped elastic bulge can prevent the exhaust hole from being blocked and the foreign matters from falling off when the foreign matters such as adhesive remained in the blade are attached to the exhaust device.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of a pressure equalizing exhaust device for a wind turbine blade according to an embodiment of the invention;
FIG. 2 is a sectional view of a pressure equalizing exhaust device for a wind turbine blade according to an embodiment of the invention;
FIG. 3 is a schematic view of an end cap according to an embodiment of the present invention;
FIG. 4 is a schematic view of a vent sleeve according to an embodiment of the present invention.
Description of reference numerals:
1-end cap; 11-an end cap body; 12-end cap bosses; 13-end cap connection; 14-a groove; 15-positioning blocks; 16-end cap vent hole; 2-a separator; 3-an exhaust sleeve; 31-a sleeve body; 32-sleeve boss; 33-sleeve vent hole; 34-spring snap bead; 35-positioning groove.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A voltage-sharing exhaust device for wind power blades is shown in figures 1 to 4 and comprises an end cover 1, a partition plate 2 and an exhaust sleeve 3, wherein the end cover 1 and the exhaust sleeve 3 are both of a truncated cone-shaped shell structure with one end open, a plurality of bulges and exhaust holes are arranged on the shells of the end cover 1 and the exhaust sleeve 3, and the bulges are circular arc elastic bulges; the end cover 1 and the exhaust sleeve 3 are detachably connected, the partition plate 2 is sleeved outside, and the inner cavities of the end cover 1 and the exhaust sleeve 3 are communicated.
The utility model provides an exhaust apparatus, simple to operate prevents that the phenomenon of exhaust hole jam conquassation baffle from appearing in the operation process, saves wind field personnel cost of maintenance.
The exhaust sleeve 3 and the end cap 1 are formed in a circular truncated cone shape, so that the inside exhaust is promoted and foreign matters are prevented from adhering to the air holes. When foreign matters such as adhesive remained in the blade of the arc-shaped elastic bulge are attached to the exhaust device, the exhaust hole is not blocked, and the foreign matters fall off (the attached foreign matters are ejected).
The end cap 1 and the exhaust sleeve 3 are made of an elastic material, preferably rubber.
The end cover 1 comprises an end cover body 11, an end cover boss 12 and an end cover connecting part 13 which are of an integral structure, a plurality of end cover exhaust holes 16 and protrusions are uniformly distributed on the end cover body 11, the end cover boss 12 is fixedly mounted above the end cover body 11, the end cover connecting part 13 is arranged above the end cover boss 12, the end cover connecting part 13 is of a hollow cylindrical structure, and grooves 14 and positioning blocks 15 are circumferentially distributed in a staggered mode inside the end cover connecting part 13.
In one embodiment, the number of the positioning blocks 35 and the number of the positioning holes 15 are three, and after the positioning blocks 35 are inserted into the positioning holes 15, the spring clamping beads 34 are clamped with the grooves 14, so that the end cover 1 and the exhaust sleeve 3 are fixed, and manual disassembly and assembly are facilitated.
The exhaust sleeve 3 is provided with 24 sleeve exhaust holes 33 with the diameter of 4mm according to the minimum diameter of 5mm of foreign matters, the outer end cover 1 is provided with 6 end cover exhaust holes 16 with the diameter of 7mm, outside air is communicated, the internal pressure is reduced, and the clapboard 2 is prevented from being crushed by overlarge pressure.
Three layers of sleeve exhaust holes 33 are uniformly distributed on the exhaust sleeve 3, 8 sleeve exhaust holes are uniformly distributed on each layer, one layer of end cover exhaust holes 16 is uniformly distributed on the outer side end cover 1, 6 sleeve exhaust holes are uniformly distributed on each layer, the inner side sleeve exhaust holes 33 and the outer side sleeve exhaust holes 16 are uniformly distributed, and the specification size and the number are uniformly distributed.
The installation process of the pressure-equalizing exhaust device for the wind power blade comprises the following steps of;
1. a reserved through hole (diameter D) is made in advance on the blade root baffle, extra punching is not needed, and the process flow is reduced; 2. the wind power blade is arranged on the blade root baffle plate through the pressure-equalizing exhaust device, and polyurethane glue is adopted to bond and fix (auxiliary reinforcement) around the hole during assembly. At the moment, the exhaust device is communicated with the atmosphere on the inner side and the outer side of the blade, so that the pressure difference between the inner pressure and the outer pressure is effectively reduced, and the clapboard is prevented from being crushed due to overlarge pressure difference between the inner pressure and the outer pressure.
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 invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a wind-powered electricity generation is pressure-equalizing exhaust apparatus for blade which characterized in that: the exhaust device comprises an end cover, a partition plate and an exhaust sleeve, wherein the end cover and the exhaust sleeve are both of a circular truncated cone-shaped shell structure with an opening at one end, and a plurality of bulges and exhaust holes are arranged on the shells of the end cover and the exhaust sleeve, and the bulges are circular arc-shaped elastic bulges; the end cover and the exhaust sleeve are detachably connected, then the partition plate is sleeved outside, and the end cover is communicated with the inner cavity of the exhaust sleeve.
2. The pressure equalizing exhaust device for the wind power blade according to claim 1, characterized in that: the end cover and the exhaust sleeve are made of elastic materials.
3. The pressure equalizing exhaust device for the wind power blade according to claim 1, characterized in that: the end cover comprises an end cover body, an end cover boss and end cover connecting parts which are of an integral structure, wherein a plurality of end cover exhaust holes and protrusions are uniformly distributed on the end cover body, the end cover boss is fixedly installed above the end cover body, the end cover connecting parts are arranged above the end cover boss and are of a hollow cylindrical structure, and grooves and positioning blocks are circumferentially and alternately distributed in the end cover connecting parts.
4. The pressure equalizing exhaust device for the wind power blade according to claim 3, characterized in that: exhaust sleeve includes a body structure's sleeve body, sleeve boss, a plurality of archs of sleeve body outside equipartition and sleeve exhaust hole, and the sleeve body is equipped with the sleeve boss, and the sleeve boss is hollow cylinder structure, a plurality of spring card pearls of outer wall circumference equipartition and constant head tank, spring card pearl be used for with the recess joint, the constant head tank is used for placing the locating piece.
5. The pressure equalizing exhaust device for the wind power blade according to claim 1, characterized in that: the number of the positioning blocks and the number of the positioning holes are three.
6. The pressure equalizing exhaust device for the wind power blade according to claim 4, characterized in that: the exhaust sleeve is provided with 24 sleeve exhaust holes, and the outer end cover is provided with 6 end cover exhaust holes.
7. The pressure equalizing exhaust device for the wind power blade according to claim 4 or 6, wherein: the exhaust sleeve equipartition three-layer sleeve exhaust hole, 8 equipartition in every layer, the outside end cover equipartition one deck end cover exhaust hole, every layer equipartition is 6, and the specification size, the number equipartition of inside and outside sleeve exhaust hole and end cover exhaust hole are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111551728.XA CN114060236A (en) | 2021-12-17 | 2021-12-17 | Pressure-equalizing exhaust device for wind power blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111551728.XA CN114060236A (en) | 2021-12-17 | 2021-12-17 | Pressure-equalizing exhaust device for wind power blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114060236A true CN114060236A (en) | 2022-02-18 |
Family
ID=80229861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111551728.XA Pending CN114060236A (en) | 2021-12-17 | 2021-12-17 | Pressure-equalizing exhaust device for wind power blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114060236A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117231443A (en) * | 2023-11-16 | 2023-12-15 | 湖南九宇新材料有限公司 | Blade root baffle of wind power generation blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101385997A (en) * | 2007-09-13 | 2009-03-18 | 乐金电子(天津)电器有限公司 | Exhausting equipment of cyclone separating device |
| US20120032448A1 (en) * | 2010-06-30 | 2012-02-09 | Mitsubishi Heavy Industries, Ltd. | Wind turbine generator |
| CN202690336U (en) * | 2012-08-22 | 2013-01-23 | 天津东汽风电叶片工程有限公司 | Blade root baffle |
| CN207324679U (en) * | 2017-10-23 | 2018-05-08 | 安徽中容电子有限公司 | A kind of capacitor processing powder mixing device |
| CN208191568U (en) * | 2018-04-13 | 2018-12-07 | 段迎先 | A kind of soybean planting case |
| CN208784381U (en) * | 2018-06-07 | 2019-04-26 | 佛山市顺德区美的电热电器制造有限公司 | Lid and cooking apparatus |
| CN110552852A (en) * | 2019-10-17 | 2019-12-10 | 湖南中科宇能科技有限公司 | Built-in manhole plate of wind power blade |
| CN211422823U (en) * | 2019-11-26 | 2020-09-04 | 浙江运达风电股份有限公司 | Exhaust hole device for blade root baffle of fan blade |
| CN111877991A (en) * | 2020-09-08 | 2020-11-03 | 河南国昌建筑工程有限公司 | Pneumatic percussion drill bit |
| CN216518422U (en) * | 2021-12-17 | 2022-05-13 | 东方电气（天津）风电叶片工程有限公司 | Pressure-equalizing exhaust device for wind power blade |
-
2021
- 2021-12-17 CN CN202111551728.XA patent/CN114060236A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101385997A (en) * | 2007-09-13 | 2009-03-18 | 乐金电子(天津)电器有限公司 | Exhausting equipment of cyclone separating device |
| US20120032448A1 (en) * | 2010-06-30 | 2012-02-09 | Mitsubishi Heavy Industries, Ltd. | Wind turbine generator |
| CN202690336U (en) * | 2012-08-22 | 2013-01-23 | 天津东汽风电叶片工程有限公司 | Blade root baffle |
| CN207324679U (en) * | 2017-10-23 | 2018-05-08 | 安徽中容电子有限公司 | A kind of capacitor processing powder mixing device |
| CN208191568U (en) * | 2018-04-13 | 2018-12-07 | 段迎先 | A kind of soybean planting case |
| CN208784381U (en) * | 2018-06-07 | 2019-04-26 | 佛山市顺德区美的电热电器制造有限公司 | Lid and cooking apparatus |
| CN110552852A (en) * | 2019-10-17 | 2019-12-10 | 湖南中科宇能科技有限公司 | Built-in manhole plate of wind power blade |
| CN211422823U (en) * | 2019-11-26 | 2020-09-04 | 浙江运达风电股份有限公司 | Exhaust hole device for blade root baffle of fan blade |
| CN111877991A (en) * | 2020-09-08 | 2020-11-03 | 河南国昌建筑工程有限公司 | Pneumatic percussion drill bit |
| CN216518422U (en) * | 2021-12-17 | 2022-05-13 | 东方电气（天津）风电叶片工程有限公司 | Pressure-equalizing exhaust device for wind power blade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117231443A (en) * | 2023-11-16 | 2023-12-15 | 湖南九宇新材料有限公司 | Blade root baffle of wind power generation blade |
| CN117231443B (en) * | 2023-11-16 | 2024-01-30 | 湖南九宇新材料有限公司 | Blade root baffle of wind power generation blade |
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