CN108223260A - A kind of fan blade remodeling method and fan blade - Google Patents
A kind of fan blade remodeling method and fan blade Download PDFInfo
- Publication number
- CN108223260A CN108223260A CN201711499498.0A CN201711499498A CN108223260A CN 108223260 A CN108223260 A CN 108223260A CN 201711499498 A CN201711499498 A CN 201711499498A CN 108223260 A CN108223260 A CN 108223260A
- Authority
- CN
- China
- Prior art keywords
- fan blade
- buried part
- reference face
- groove
- arrester
- 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
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000007634 remodeling Methods 0.000 title claims abstract description 16
- 210000003205 muscle Anatomy 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000025274 Lightning injury Diseases 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The embodiment of the invention discloses a kind of fan blade remodeling methods.Present invention method includes：The tip segment for cutting off fan blade top forms top table top；Groove is made on the top table top, is provided in the groove and connects sudden strain of a muscle cable；Arrester is inlayed in the groove, the arrester includes pre-buried part and outside reference face, and the pre-buried part is connected with the outside reference face, and the pre-buried part is embedded in the groove, and the pre-buried part is connected with the sudden strain of a muscle cable that connects.The embodiment of the present invention additionally provides a kind of fan blade, for increasing the surface area of arrester, avoids lightning that from frequently hitting on a point, arrester is avoided to damage, and it is more preferable to draw thunder effect.
Description
Technical field
The present invention relates to field of fan electricity generation more particularly to a kind of fan blade remodeling methods and fan blade.
Background technology
In recent years, " energy crisis " increasingly attracts people's attention, and energy shortage causes regenerative resource to obtain unprecedentedly
Development.Wind energy was obtaining development at full speed in recent years as inexhaustible regenerative resource.It is sent out about wind-force
The various aspects research of electricity will become future thrust.
Fan blade is an important component of wind power generating set, and blade of wind-driven generator is often by that cannot bear thunder
The material that hits cannot conduct the composite material of lightning current and be made, and fan blade is from the damage of lightning stroke, existing skill in order to prevent
In art, the top of fan blade is provided with one piece of small area arrester, for attracting lightning, and imports the earth, prevents thunder and lightning from hitting
In other critical components, but the area very little of the arrester, lightning can be frequently hit in this point, in addition the intrusion of steam,
Steam expansion easily causes fan blade cracking.
Invention content
An embodiment of the present invention provides a kind of fan blade remodeling method and fan blades, increase the area of arrester,
It is more preferable to draw thunder effect, direct lightning strike is avoided frequently not hit in a point, prevents arrester from damaging.
In a first aspect, a kind of fan blade remodeling method is provided in the embodiment of the present invention, including：
The tip segment for cutting off fan blade top forms top table top；
Groove is made on the top table top, is provided in the groove and connects sudden strain of a muscle cable；
Arrester is inlayed in the groove, the arrester includes pre-buried part and outside reference face, the preburying part
Divide and be connected with the outside reference face, the pre-buried part is embedded in the groove, and the pre-buried part connects sudden strain of a muscle line with described
Cable is connected.
In a kind of possible realization method, the pre-buried part is an integral molding structure with the outside reference face.
In a kind of possible realization method, the pre-buried part is with the outside reference face to be flexibly connected.
In a kind of possible realization method, length of the outside reference face on blade radial is 80 millimeters to 200
Millimeter.
In a kind of possible realization method, length of the outside reference face on blade radial is 100 millimeters.
In a kind of possible realization method, arrester is aluminum.
Second aspect provides a kind of fan blade in the embodiment of the present invention, including：
Blade body and arrester；
The tip segment on the top of the blade body is removed to form top table top；
It is set on the top table top fluted, is provided in the groove and connects sudden strain of a muscle cable；
The arrester includes pre-buried part and outside reference face, and the pre-buried part is connected with the outside reference face,
The pre-buried part is embedded in the groove, and the pre-buried part is connected with the sudden strain of a muscle cable that connects.
In a kind of possible realization method, the pre-buried part is an integral molding structure with the outside reference face.
In a kind of possible realization method, the pre-buried part is with the outside reference face to be flexibly connected.
In a kind of possible realization method, length of the outside reference face on blade radial is 80 millimeters to 200
Millimeter.
The pre-buried part of arrester and outside reference face area connect considerably beyond of the prior art in the embodiment of the present invention
Device is dodged, direct lightning strike will not be frequently hit in a point, and it is more preferable to draw thunder effect, and complete aluminum blade tip (outside reference face) energy
The entrance for effectively reducing steam avoids fan blade caused by expansion after generating corrosion and steam entrance from cracking.
Description of the drawings
Fig. 1 is the step flow diagram of fan blade remodeling method in the embodiment of the present invention；
Fig. 2 is the structure diagram of fan blade in the embodiment of the present invention；
Fig. 3 is the structure diagram of fan blade in the embodiment of the present invention；
Fig. 4 is the structure diagram in further groove internal drainage of embodiment of the present invention hole.
Specific embodiment
An embodiment of the present invention provides a kind of fan blade remodeling method and fan blade, for increasing the surface of arrester
Product, avoids lightning that from frequently hitting on a point.
A kind of fan blade remodeling method is provided in the embodiment of the present invention, incorporated by reference to shown in Fig. 1, Fig. 1 is real for the present invention
Apply a kind of step flow diagram of fan blade remodeling method in example.
Step 101, the tip segment formation top table top on excision fan blade top.
Fan blade can be spanwise shape shape, and fan blade includes in blade root, leaf and blade tip, and blade is diameter along leaf exhibition direction
To, after cutting off 10mm tip segments, formation top table top.
Step 102 makes groove on the top table top, is provided in the groove and connects sudden strain of a muscle cable.
Groove is made on the top table top, shape and the arrester of the groove match, which connects sudden strain of a muscle for accommodating
Device.
Step 103 inlays arrester in the groove, and the arrester includes pre-buried part and outside reference face, institute
It states pre-buried part with the outside reference face to be connected, the pre-buried part is embedded in the groove, the pre-buried part and institute
State connect dodge cable be connected.
The pre-buried part is connected with outside reference face, ensures that the area of the arrester is sufficient, which passes through pin
It fixes and is embedded in the groove.
Fan blade arrester lightning protection principle is：Thunder and lightning is introduced by the arrester of blade surface, electric current passes through wind turbine
Blade interior connects sudden strain of a muscle cable and conducts to the metal flange of root of fan blade or other structures, then the lightning protection system for passing through wind turbine itself
System directs current to the earth, constrains thunder and lightning, protects fan blade.
Optionally, the pre-buried part is an integral molding structure with the outside reference face.
Optionally, the first mounting hole is provided on pre-buried part, the second mounting hole is provided on outside reference face, this
The position of one mounting hole is corresponding with the position of second mounting hole, and screw is passed through the first mounting hole and the second mounting hole, is led to
The cooperation of screw and the first mounting hole and the second mounting hole is crossed, so that the pre-buried part is work with the outside reference face
Dynamic connection.
Optionally, length of the outside reference face on blade radial is 80 millimeters to 200 millimeters.It is for example, described outer
Length of portion's datum level on blade radial is 100 millimeters.
Optionally, arrester is aluminum.
The pre-buried part of arrester and outside reference face area connect considerably beyond of the prior art in the embodiment of the present invention
Device is dodged, draws that thunder effect is more preferable, and direct lightning strike will not be frequently hit in a point, and arrester is avoided to damage, and complete aluminum leaf
The entrance that sharp (outside reference face) can effectively reduce steam avoids generating corrosion, also avoids causing wind after expansion since steam enters
Machine blade cracks.
Understood incorporated by reference to Fig. 2, Fig. 2 is a kind of structure diagram of fan blade in the embodiment of the present invention.The present invention
Fan blade in embodiment includes：
Blade body 201 and arrester 202；The tip segment on the top of the blade body 201 is removed to form top
End stand face 2011；Fluted 203 are set on the top table top 2011, is provided with to connect in the groove 203 and dodges cable 204；
This, which connects, dodges cable 204 for copper cable.The arrester 202 includes pre-buried part 2021 and outside reference face 2022, external base
The surface area in quasi- face 2022 is more than the surface area of pre-buried part 2021, and the shape in the outside reference face 2022 can be blade tip shape
Shape.
The pre-buried part 2021 is connected with the outside reference face 2022, described in a kind of possible realization method
Pre-buried part 2021 is an integral molding structure with the outside reference face 2022.It is described in alternatively possible realization method
Pre-buried part 2021 is with the outside reference face 2022 to be flexibly connected.The first mounting hole is provided on pre-buried part 2021,
The second mounting hole is provided on outside reference face 2022, the position of first mounting hole is opposite with the position of second mounting hole
Should, screw is passed through into the first mounting hole and the second mounting hole, by the cooperation of screw and the first mounting hole and the second mounting hole, from
And cause the pre-buried part 2021 with the outside reference face 2022 to be flexibly connected.
The pre-buried part 2021 is embedded in the groove 203, shape and 202 phase of arrester of the groove 203
It matches, mounting hole is provided in the groove 203, by the cooperation of rivet 205 and the mounting hole, which is fixed
In in the groove 203.
It see also shown in Fig. 3, Fig. 3 is the structure diagram of fan blade.The pre-buried part 2021 connects sudden strain of a muscle line with described
Cable 204 is connected.This, which connects, dodges cable 204 for connecting lightning-protection system conducting wire 206, so as to which the electric current be allow to be conducted from sudden strain of a muscle cable is connect
To lightning-protection system conducting wire 206.
The pre-buried part with this connect dodge cable be connected, specifically, the pre-buried part with this connect dodge cable can be welding or
Person is provided with metal pin on the pre-buried part, connects and dodges on line cable winds to the metal pin with connection.
Fan blade arrester lightning protection principle is：Thunder and lightning is introduced by the arrester of blade surface, electric current passes through wind turbine
Blade interior connects sudden strain of a muscle cable and conducts to the metal flange of root of fan blade or other structures, then the lightning protection system for passing through wind turbine itself
System directs current to the earth, constrains thunder and lightning, protects fan blade.
Optionally, length of the outside reference face on blade radial is 80 millimeters to 200 millimeters.For example, outside reference face
Length on blade radial is 100 millimeters.
Optionally, arrester is aluminum.
Understood incorporated by reference to Fig. 4, Fig. 4 is an exemplary structure diagram of groove.The row of being provided in the groove 203
Water hole 401, the shape of the osculum 401 can be circle, or ellipse, osculum 401 are recessed for that will drop onto this
Rainwater in slot 203 excludes, and avoids accumulating pre-buried part progress corrosion of the rainwater to arrester for a long time in the groove 203.
The osculum can arrange along the recess edge, if for example, the shape of the groove is trapezoidal, which can
To arrange along trapezoidal four sides, and the osculum has a preset distance apart from the side of the groove, for example, this it is preset away from
From that can be 20mm, upon rotation of the blade, by centrifugal force to flows outside, such layout type can exclude water droplet raindrop,
Rainwater is avoided to remain.
It is not limited in the quantity embodiment of the present invention of the osculum, for example, the quantity of the osculum can be 8,16
It is a etc., it is preferred that the osculum is uniformly arranged on each side of the groove.
It should be noted that in the embodiment of the present invention, for preset distance, the shape of groove and the quantity of osculum are
Illustrated example for convenience of explanation does not cause limitation of the invention explanation.
Pre-buried part that arrester in the embodiment of the present invention includes and the area in outside reference face are considerably beyond existing skill
Arrester in art, draws that thunder effect is more preferable, and direct lightning strike will not be frequently hit in a point, and complete aluminum blade tip is (external
Datum level) can effectively reduce steam entrance avoid generate corrosion, also avoid due to steam enter cause expansion rear fan blade
Cracking.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit can refer to the corresponding process in preceding method embodiment, and details are not described herein.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or carry out equivalent replacement to which part technical characteristic；And these
Modification is replaced, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of fan blade remodeling method, which is characterized in that including：
The tip segment for cutting off fan blade top forms top table top；
Groove is made on the top table top, is provided in the groove and connects sudden strain of a muscle cable；
Inlay arrester in the groove, the arrester includes pre-buried part and outside reference face, the pre-buried part with
The outside reference face is connected, and the pre-buried part is embedded in the groove, and cable phase is dodged in the pre-buried part with described connect
Even.
2. fan blade remodeling method according to claim 1, which is characterized in that the pre-buried part and the external base
Quasi- face is an integral molding structure.
3. fan blade remodeling method according to claim 1, which is characterized in that the pre-buried part and the external base
Quasi- face is flexible connection.
4. fan blade remodeling method according to claim 1, which is characterized in that the outside reference face is in blade radial
On length be 80 millimeters to 200 millimeters.
5. the fan blade remodeling method according to any one of claim 1-4, which is characterized in that the outside reference face
Length on blade radial is 100 millimeters.
6. the fan blade remodeling method according to any one of claim 1-4, which is characterized in that the arrester is aluminium
System.
7. a kind of fan blade, which is characterized in that including：
Blade body and arrester；
The tip segment on the top of the blade body is removed to form top table top；
It is set on the top table top fluted, is provided in the groove and connects sudden strain of a muscle cable；
The arrester includes pre-buried part and outside reference face, and the pre-buried part is connected with the outside reference face, described
Pre-buried part is embedded in the groove, and the pre-buried part is connected with the sudden strain of a muscle cable that connects.
8. fan blade according to claim 7, which is characterized in that the pre-buried part is one with the outside reference face
Forming structure.
9. fan blade according to claim 7, which is characterized in that the pre-buried part is with the outside reference face to live
Dynamic connection.
10. according to the fan blade described in any one of claim 7-9, which is characterized in that the outside reference face is in blade
Length radially is 80 millimeters to 200 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499498.0A CN108223260A (en) | 2017-12-29 | 2017-12-29 | A kind of fan blade remodeling method and fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499498.0A CN108223260A (en) | 2017-12-29 | 2017-12-29 | A kind of fan blade remodeling method and fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223260A true CN108223260A (en) | 2018-06-29 |
Family
ID=62642454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711499498.0A Pending CN108223260A (en) | 2017-12-29 | 2017-12-29 | A kind of fan blade remodeling method and fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223260A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005031158A2 (en) * | 2003-09-29 | 2005-04-07 | Vestas Wind Systems A/S | Lightning protection system for wind turbine blade |
| DE102005051537A1 (en) * | 2005-10-26 | 2007-05-03 | Christoph Lucks | Lightning arrester system attaching method for use in wind energy plant, involves attaching replacing top to separation line and rotor blade, and connecting electrical line with ground, where line is electrically connected to replacing top |
| US20110110789A1 (en) * | 2009-11-10 | 2011-05-12 | Luebbe Lutz | Blade tip for a rotor blade of a wind turbine and a method of inserting the blade tip into a rotor blade |
| CN102365454A (en) * | 2009-03-06 | 2012-02-29 | Lm玻璃纤维制品有限公司 | Wind turbine blade with a lightning protection system |
| CN203339481U (en) * | 2013-04-18 | 2013-12-11 | 江苏新誉重工科技有限公司 | Megawatt aluminium blade-tip lightning arrester |
| CN105604811A (en) * | 2016-02-26 | 2016-05-25 | 北京金风科创风电设备有限公司 | Blade lightning protection system of wind generating set and blade |
| CN205349620U (en) * | 2015-09-29 | 2016-06-29 | 北京万源工业有限公司 | Aerogenerator blade apex connects and dodges drainage device |
| CN106762469A (en) * | 2017-01-16 | 2017-05-31 | 张瑞佳 | Fan blade lightning protection device with metal blade tip |
| CN207892776U (en) * | 2017-12-29 | 2018-09-21 | 华润电力风能（汕头潮南）有限公司 | A kind of fan blade |
-
2017
- 2017-12-29 CN CN201711499498.0A patent/CN108223260A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005031158A2 (en) * | 2003-09-29 | 2005-04-07 | Vestas Wind Systems A/S | Lightning protection system for wind turbine blade |
| DE102005051537A1 (en) * | 2005-10-26 | 2007-05-03 | Christoph Lucks | Lightning arrester system attaching method for use in wind energy plant, involves attaching replacing top to separation line and rotor blade, and connecting electrical line with ground, where line is electrically connected to replacing top |
| CN102365454A (en) * | 2009-03-06 | 2012-02-29 | Lm玻璃纤维制品有限公司 | Wind turbine blade with a lightning protection system |
| US20110110789A1 (en) * | 2009-11-10 | 2011-05-12 | Luebbe Lutz | Blade tip for a rotor blade of a wind turbine and a method of inserting the blade tip into a rotor blade |
| CN203339481U (en) * | 2013-04-18 | 2013-12-11 | 江苏新誉重工科技有限公司 | Megawatt aluminium blade-tip lightning arrester |
| CN205349620U (en) * | 2015-09-29 | 2016-06-29 | 北京万源工业有限公司 | Aerogenerator blade apex connects and dodges drainage device |
| CN105604811A (en) * | 2016-02-26 | 2016-05-25 | 北京金风科创风电设备有限公司 | Blade lightning protection system of wind generating set and blade |
| CN106762469A (en) * | 2017-01-16 | 2017-05-31 | 张瑞佳 | Fan blade lightning protection device with metal blade tip |
| CN207892776U (en) * | 2017-12-29 | 2018-09-21 | 华润电力风能（汕头潮南）有限公司 | A kind of fan blade |
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