CN205445914U - Aerogenerator blade apex lightning arrester - Google Patents

Aerogenerator blade apex lightning arrester Download PDF

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Publication number
CN205445914U
CN205445914U CN201521069296.9U CN201521069296U CN205445914U CN 205445914 U CN205445914 U CN 205445914U CN 201521069296 U CN201521069296 U CN 201521069296U CN 205445914 U CN205445914 U CN 205445914U
Authority
CN
China
Prior art keywords
metal protection
blade
arrester
protection set
tip
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.)
Expired - Fee Related
Application number
CN201521069296.9U
Other languages
Chinese (zh)
Inventor
黄国明
戴涛
贺华林
赖斌
冯顺绪
苏文贵
陈光荣
郭杰
覃志
代贤涛
李昌盛
王涛
黄文显
冯鹏
张建军
张瑞佳
付建良
鲁志
陈德宝
王誉
杨增民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoding Haifeng Wind Power Technology Co ltd
Datang Guiguan Panxian Sige Wind Power Co ltd
Original Assignee
Baoding Haifeng Wind Power Technology Co ltd
Datang Guiguan Panxian Sige Wind Power Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baoding Haifeng Wind Power Technology Co ltd, Datang Guiguan Panxian Sige Wind Power Co ltd filed Critical Baoding Haifeng Wind Power Technology Co ltd
Priority to CN201521069296.9U priority Critical patent/CN205445914U/en
Application granted granted Critical
Publication of CN205445914U publication Critical patent/CN205445914U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F03D80/30—Lightning protection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/307—Blade tip, e.g. winglets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

The utility model relates to an aerogenerator blade apex lightning arrester. The device is including installing the metal protection cover in fan blade apex portion, arrester with the electrically conductive hookup of metal protection cover, the arrester is equipped with external contact, external contact with install built -in contact screw assembly and the electrically conductive hookup in the blade, the arrester is through wearing to arrange in the external contact and the electrically conductive hookup of metal protection cover in the first through -hole, the metal protection cover is through wearing to arrange in the fastener and the fastening hookup of apex portion in the second through -hole, the fastener comprises two bolts and sleeve pipe, install the lightning rod device at metal protection cover cecum. The utility model has the advantages that electrically conductive effect ideal can effectively be avoided and reduce fan blade apex portion and receive the thunder and lightning to influence the damage that leads to, and the installation is firm reliable, and long service life, security are good, and the specially adapted is installed and use forming a complete set at the fan blade of usefulness at present.

Description

Blade of wind-driven generator blade tip lightning arrester
Technical field
This utility model relates to a kind of wind-driven generator lightning protection device, particularly to a kind of blade of wind-driven generator blade tip lightning arrester.
Background technology
Wind-driven generator is generally located on the highland in field, and fan blade is easily struck by lightning.At present, general shocking preventing technology all focuses on and the most quickly lightning current is introduced the earth when being struck by lightning, and is reduced as far as being imported by thunder and lightning the electric current of equipment, ensures equipment and the safety of personnel to greatest extent, make loss be reduced to minimum degree.Mainly led thunder passage, complete machine Grounding etc. by blade arrester, blade interior in the design to form.Along with the increase of Wind turbines single-machine capacity, length of blade is also being continuously increased, and some blades, up to more than 150 rice, add constantly increasing of blower fan pylon so that blade is farther away from ground.And in actual use, blower fan blade tip position contacts thunder and lightning the most at first, therefore in blower fan lightning strike accident, 90% generation is at blade tip position, and therefore blade tip position is lightning-arrest particularly important.Current most of producers use increases blade arrester number, or on whole blade, arrange multiple arrester, expect that solving blade tip takes shelter from the thunder problem, but owing to blade construction limits, there is certain distance in the installation site of arrester and blade tip, vane tip is by after thunder, can not the most quickly be delivered to lightning-arrest passage, blade tip moment will be wounded or be smashed, if individually adding discharging rod at leaf tip, it is to be limited by leaf tip structure equally, the laying etc. of lightning-arrest component and wire is required for blade construction is carried out bigger transformation, and owing to blade itself is high-speed rotary part, service life and the safety of lightning-arrest component are the most poor.Additionally, also some lightning-arrest designs are occurred in that in some technical literatures, as installed conductive cap etc. additional at leaf tip, but still it is the best to there is conductive effect, there is certain impact in conductive cap and blade fastening means, and firmness can not effectively meet use requirement on blade construction and operating mode, conductive cap is from great, poor stability, cost is high, installs and safeguards inconvenience, many technical problems such as Separate designs is unreasonable.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of blade of wind-driven generator blade tip lightning arrester, in order to overcome technological deficiency present in prior art, conductive effect is preferable, can be prevented effectively from and reduce the damage that fan blade leaf tip is caused by effects of lightning, solid and reliable, service life length, safety good, be particularly well-suited to at present fan blade carry out supporting repacking and use.
This utility model solves its technical problem and be the technical scheme is that
nullBlade of wind-driven generator blade tip lightning arrester，Including the metal protection set being arranged on fan blade leaf tip，Arrester with metal protection set conductive attachment，The first through hole is offered at metal protection set rear portion，Arrester is provided with external contact，External contact and the built-in contact Screw assembly being arranged in blade and conductive attachment，Arrester overlaps conductive attachment by the external contact being placed through in the first through hole with metal protection，Metal protection set and leaf tip offer the second through hole being correspondingly arranged respectively，Metal protection set is coupled with leaf tip fastening by the securing member being placed through in the second through hole，Securing member is made up of two bolts and sleeve pipe，Sleeve pipe is the circular tube structure of both ends open，Couple in sleeve pipe is embedded at the second through hole of leaf tip and with through-hole wall fastening，Two bolts are coiled hair structure and are arranged oppositely，In the screw portion of bolt is placed in sleeve pipe and coordinate with casing threads，Cecum at metal protection set is provided with arrester device，Arrester device is made up of the discharging rod body being fixed in metal protection set cecum and the cylindric discharging rod extended to outside protective jacket by body.
The thickness of metal protection set is A, 1mm > A >=0.5mm, the material selection red copper of metal protection set or aluminum or stainless one.
As preferably, the external contact of arrester is pan bolt structure.
Further, with on the contact surface of metal protection set on leaf tip, being evenly equipped with ring-shaped groove, the cross section of ring-shaped groove is V-type, is filled with binding agent in groove, and the inner surface of metal protection set is bonding with the outer surface of leaf tip.
Ring-shaped groove along the arrangement of leaf tip axially spaced-apart and is radially offered along leaf tip, and the spacing between each ring-shaped groove is 15-25mm, and the groove width of ring-shaped groove is 2-4mm, and groove depth is 1-2mm.
Technological progress acquired by this utility model is:
1, it is provided with external contact due to arrester, external contact and the built-in contact Screw assembly being arranged in blade and conductive attachment, arrester overlaps conductive attachment by the external contact being placed through in the first through hole with metal protection, reasonable in design, compared with the existing technology, the external contact set up can be effectively ensured the conductive attachment of protective jacket and arrester, can play again the fastening effect between each parts；nullMetal protection set is coupled with leaf tip fastening by the securing member being placed through in the second through hole，Securing member is made up of two bolts and sleeve pipe，Sleeve pipe is the circular tube structure of both ends open，Couple in sleeve pipe is embedded at the second through hole of leaf tip and with through-hole wall fastening，Two bolts are coiled hair structure and are arranged oppositely，In the screw portion of bolt is placed in sleeve pipe and coordinate with casing threads，Owing to blade is hollow membrane structure，Metal protection is applied mechanically bolt and is difficult to be directly anchored to the leaf tip of blade，As used other connecting mode of the prior art，Owing to stress point is concentrated，The centrifugal action produced with blade high speed rotating，Will certainly damaged blade structure，And then protective jacket may be produced get rid of the security risks such as de-，The sleeve pipe that this utility model is given is the preset component being fixed in blade，Again by bolt to fixing，Protective jacket is firmly installed with leaf tip、Safe and reliable，The fastening effect of fixing bolt can be effectively improved，Prevent leaf tip from damaging and getting rid of by protective jacket when high speed rotating；Owing to being provided with arrester device at metal protection set cecum, arrester device is made up of the discharging rod body being fixed in metal protection set cecum and the cylindric discharging rod extended to outside protective jacket by body, the design of this structure further increases the lightning-arrest conductive effect of protective jacket cecum both blade tip positions, owing to blade is high-speed rotary part, discharging rod body is fixed in protective jacket by this utility model, discharging rod is shaped as cylindric, blade need to be dismounted relative to discharging rod such as aciculiforms of the prior art, fixing requirement height, discharging rod is with the shortcoming such as being easily deformed in blade high-speed rotation, reasonable in design of the present utility model, firmly install, service life is long.In sum, this utility model conductive effect is preferable, can be prevented effectively from and reduce the damage that fan blade leaf tip is caused by effects of lightning, and solid and reliable, safety is good, be particularly well-suited to at present fan blade carry out supporting repacking and use.
2, the thickness overlapped due to metal protection is A, 1mm > A >=0.5mm, the material selection red copper of metal protection set or aluminum or stainless one, protective jacket molding is simple, easy for installation, compared to existing technology, good with the attaching degree of blade, blade tip profile will not be impacted, and also lightweight, blade bears a heavy burden little, farthest decreases the work influence to blade.
3, due on leaf tip with metal protection set contact surface on, offer ring-shaped groove, the cross section of ring-shaped groove is V-type, being filled with binding agent in groove, the inner surface of metal protection set is bonding with the outer surface of leaf tip, rational in infrastructure, increase protective jacket and leaf tip is attached to each other power, the two connection is closely knit firmly, effectively overcomes the powerful centrifugal action produced because of blade high speed rotating, improves security performance.
4, and radially offer along the arrangement of leaf tip axially spaced-apart along leaf tip due to ring-shaped groove, spacing between ring-shaped groove is 15-25mm, groove width is 2-4mm, groove depth is 1-2mm, and through repeatedly testing, parameter designing is reasonable, working condition requirement is effective, the bonding of protective jacket and leaf tip is firmly, it is to avoid the problems such as the blade-oscillating that assembling reason causes therebetween, little on the impact of blade operating mode.
Accompanying drawing explanation
Fig. 1 is this utility model overall structure schematic diagram.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Reference in accompanying drawing is as follows:
1, metal protection set；2, bolt；3, leaf tip；4, ring-shaped groove；5, fan blade；6, the external contact of arrester；7, sleeve pipe；8, the built-in contact of arrester；9, discharging rod body；10, discharging rod.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described further; this description is not as to restriction of the present utility model; the content that protection domain of the present utility model is recorded with claim is as the criterion; any according to the equivalent technical elements replacement done by patent specification, all without departing from protection domain of the present utility model.
nullEmbodiment 1: as shown in Figure 1-2，Blade of wind-driven generator blade tip lightning arrester，1 is overlapped including the metal protection being arranged on fan blade 5 leaf tip 3，With the arrester that metal protection overlaps 1 conductive attachment，Overlap 1 rear portion at metal protection and offer the first through hole，Arrester is provided with external contact 6，External contact 6 is pan bolt structure，External contact 6 and built-in contact 8 Screw assembly being arranged in blade 5 and conductive attachment，Arrester overlaps 1 conductive attachment by the external contact 6 being placed through in the first through hole with metal protection，Metal protection set 1 and leaf tip 3 offer 3 group of second through hole being correspondingly arranged respectively，Metal protection set 1 is coupled with leaf tip 3 fastening by the securing member being placed through in the second through hole，Securing member is made up of two bolts 2 and sleeve pipe 7，Sleeve pipe 7 is the circular tube structure of both ends open，The second through hole that sleeve pipe 7 is embedded at leaf tip 3 is interior and bonding with through-hole wall，Two bolts 2 are coiled hair structure and are arranged oppositely，In the screw portion of bolt 2 is placed in sleeve pipe 7 and with sleeve pipe 7 threaded engagement，Overlap 1 cecum at metal protection and arrester device is installed，Arrester device is by being fixed on discharging rod body 9 that metal protection overlaps in 1 cecum and being extended to the cylindric discharging rod 10 of 2 outside protective jacket 1 by body 9 and form.The thickness A of metal protection set 1 is 0.5mm, the material selection red copper of metal protection set 1.With on the contact surface of metal protection set 1 on leaf tip 3, being evenly equipped with ring-shaped groove 4, the cross section of ring-shaped groove 4 is V-type, is filled with binding agent in groove, and the inner surface of metal protection set 1 is bonding with the outer surface of leaf tip 3.Ring-shaped groove 4 along the arrangement of leaf tip 3 axially spaced-apart and is radially offered along leaf tip 3, and the spacing between each ring-shaped groove 4 is 15mm, and the groove width of ring-shaped groove 4 is 2mm, and groove depth is 1mm.
Embodiment 2: as shown in Figure 1-2, the thickness A of metal protection set 1 is 0.7mm, and the material selection aluminum of metal protection set 1, the spacing between each ring-shaped groove 4 is 20mm, and the groove width of ring-shaped groove 4 is 3mm, and groove depth is 1.5mm.Remaining structure is as described in Example 1.
Embodiment 3: as shown in Figure 1-2, the thickness A of metal protection set 1 is 0.9mm, and the material selection rustless steel of metal protection set 1, the spacing between each ring-shaped groove 4 is 25mm, and the groove width of ring-shaped groove 4 is 4mm, and groove depth is 2mm.Remaining structure is as described in Example 1.

Claims (5)

  1. null1. blade of wind-driven generator blade tip lightning arrester，Including the metal protection set (1) being arranged on fan blade (5) leaf tip (3)，Arrester with metal protection set (1) conductive attachment，It is characterized in that offering the first through hole at metal protection set (1) rear portion，Arrester is provided with external contact (6)，External contact (6) and built-in contact (8) Screw assembly being arranged in blade (5) and conductive attachment，Arrester is by the external contact (6) being placed through in the first through hole and metal protection set (1) conductive attachment，Metal protection set (1) and leaf tip (3) offer the second through hole being correspondingly arranged respectively，Metal protection set (1) is coupled with leaf tip (3) fastening by the securing member being placed through in the second through hole，Securing member is made up of two bolts (2) and sleeve pipe (7)，Sleeve pipe (7) is the circular tube structure of both ends open，Couple in sleeve pipe (7) is embedded at the first through hole of leaf tip (3) and with through-hole wall fastening，Two bolts (2) are coiled hair structure and are arranged oppositely，The screw portion of bolt (2) be placed in sleeve pipe (7) and with sleeve pipe (7) threaded engagement，Cecum at metal protection set (1) is provided with arrester device，Arrester device is made up of the discharging rod body (9) being fixed in metal protection set (1) cecum and the cylindric discharging rod (10) being extended to protective jacket (1) outside by body (9).
  2. Blade of wind-driven generator blade tip lightning arrester the most according to claim 1, it is characterised in that the thickness of metal protection set (1) is A, 1mm > A >=0.5mm, the material selection red copper of metal protection set (1) or aluminum or stainless one.
  3. Blade of wind-driven generator blade tip lightning arrester the most according to claim 1 and 2, it is characterised in that the external contact (6) of arrester is pan bolt structure.
  4. Blade of wind-driven generator blade tip lightning arrester the most according to claim 1 and 2, it is characterized in that on the leaf tip (3) contact surface with metal protection set (1), it is evenly equipped with ring-shaped groove (4), the cross section of ring-shaped groove (4) is V-type, being filled with binding agent in groove (4), the inner surface of metal protection set (1) is bonding with the outer surface of leaf tip (3).
  5. Blade of wind-driven generator blade tip lightning arrester the most according to claim 4, it is characterized in that described ring-shaped groove (4) along the arrangement of leaf tip (3) axially spaced-apart and is radially offered along leaf tip (3), spacing between each ring-shaped groove (4) is 15-25mm, the groove width of ring-shaped groove (4) is 2-4mm, and groove depth is 1-2mm.
CN201521069296.9U 2015-12-21 2015-12-21 Aerogenerator blade apex lightning arrester Expired - Fee Related CN205445914U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521069296.9U CN205445914U (en) 2015-12-21 2015-12-21 Aerogenerator blade apex lightning arrester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521069296.9U CN205445914U (en) 2015-12-21 2015-12-21 Aerogenerator blade apex lightning arrester

Publications (1)

Publication Number Publication Date
CN205445914U true CN205445914U (en) 2016-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521069296.9U Expired - Fee Related CN205445914U (en) 2015-12-21 2015-12-21 Aerogenerator blade apex lightning arrester

Country Status (1)

Country Link
CN (1) CN205445914U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105386943A (en) * 2015-12-21 2016-03-09 大唐桂冠盘县四格风力发电有限公司 Wind driven generator blade point lightning protection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105386943A (en) * 2015-12-21 2016-03-09 大唐桂冠盘县四格风力发电有限公司 Wind driven generator blade point lightning protection device

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160810

Termination date: 20181221