CN105065196B - A kind of lengthened vanes type blower fan - Google Patents
A kind of lengthened vanes type blower fan Download PDFInfo
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- CN105065196B CN105065196B CN201510459905.XA CN201510459905A CN105065196B CN 105065196 B CN105065196 B CN 105065196B CN 201510459905 A CN201510459905 A CN 201510459905A CN 105065196 B CN105065196 B CN 105065196B
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- 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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Abstract
The present invention relates to a kind of lengthened vanes type blower fan, including tower, wheel hub, blade, actuating device, TRT, described blade includes blade body portion and lengthened vanes portion, described lengthened vanes portion is connected with described blade body portion in the end in described blade body portion, described blade body portion is provided with an opening with the connection end in lengthened vanes portion, and the supporting construction in described blade body portion and/or lengthened vanes portion is connected by the supporting construction in this opening lengthened vanes portion corresponding with another or blade body portion.
Description
Technical field
The present invention relates to wind-powered electricity generation field, especially a kind of lengthened vanes type blower fan.
Background technology
Wind energy, as the regenerative resource of a kind of cleaning, is increasingly paid attention to by countries in the world, and the amount of accumulateing is the hugest,
Wind-power electricity generation is as one of current novel energy industry, because its environmental protection and energy saving development scale is advanced by leaps and bounds, current China whole nation model
There is wind power generating set ten hundreds of in enclosing, and still there is the fast-developing impetus.The groundwork of wind power generating set
Principle is to absorb energy from wind by wind wheel and utilize aerodynamic principle to transform wind energy into become rotational, then pass through
Rotational is transformed into electric energy by electromotor.Wherein wind wheel comprises wheel hub and blade, and length of blade is the longest, then the wind energy absorbed is more
Many, unit generation amount is the highest, but the load produced while absorbing more multi-energy is the biggest.
Large-scale Wind Turbines technology enters China early stage, owing to technology is new, risk big, and by blade system
Make the jejune restriction of technique, the commonly used conservative strategy of wind energy turbine set developer, select the blade that length is relatively short, short blade
Although generated energy is little, but the load brought to unit is the least, and therefore unit safety has obtained maximum guarantee.Along with sending out of industry
Exhibition, Chinese Enterprises has had the most deep understanding to the performance load of wind power generating set, gradually can more accurately count
Calculate load, thus gradually start to select longer blade in the wind energy turbine set of same level wind speed, improve to absorb more wind energy
Investment gene-ration revenue.
But, have taken up conservative strategy and select the wind energy turbine set of short blade to be it desired to use longer blade then to need
Again blade is purchased.This makes the high cost of technology upgrading, the economic benefit that is typically due to not possess technology upgrading and cannot
Carry out.
Given this present invention is proposed.
Summary of the invention
The purpose of the present invention is for overcoming the deficiencies in the prior art, it is provided that a kind of lengthened vanes type blower fan, and length of blade lengthens,
Wind sweeping area increases, and improves the power of wind power generating set output thus improves generated energy.
In order to realize this purpose, the present invention adopts the following technical scheme that a kind of lengthened vanes type blower fan, including tower, wheel
Hub, blade, actuating device, TRT, described blade includes that blade body portion and lengthened vanes portion, described lengthened vanes portion exist
The end in described blade body portion is connected with described blade body portion.
Described blade body portion is provided with an opening, described blade body portion and/or blade with the connection end in lengthened vanes portion
Supporting construction in lengthening part is connected by the supporting construction in this opening lengthened vanes portion corresponding with another or blade body portion.
Described blade body portion includes the main body girder being arranged on inside and is arranged on the body shell of outside, described main body
The end of housing is provided with the first opening, and described main body girder stretches out described first opening and is connected with described lengthened vanes portion.
Described blade body portion includes the main body girder being arranged on inside and is arranged on the body shell of outside, described main body
The end of housing is provided with the first opening, and described main body girder is positioned at described first opening, and described lengthened vanes portion is at least part of
Stretch into described first opening to be connected with described main body girder.
Described lengthened vanes portion include being arranged on inside lengthen girder and be arranged on outside add long shell, described lengthening
It is relative that the end of housing is provided with the second opening, the second opening and the first opening, and described lengthening girder and described main body girder connect,
The described long shell that adds is connected with described body shell.
Connected by catching groove between described main body girder and described lengthening girder.
The sidepiece of described main body girder is provided with groove/land, the sidepiece of described lengthening girder be provided with matched projection/
Groove, the two is connected, bonding connection after preferably the two coordinates.
Main body floor, described main body floor one end and described main body girder it is provided with between described main body girder and body shell
Clamping or bonding, the described main body floor other end and described body shell clamping or bonding, described lengthening girder and add long shell
Between be provided with lengthening floor, described lengthening floor one end and described lengthening girder clamping or bonding, the described lengthening floor other end
Long shell clamping or bonding is added with described.
Described the second opening part adding long shell is least partially overlapped with the first opening part of described body shell, overlapping portion
Dividing bonding, the outer surface of the most described junction is wound around and arranges winding band, and the most described winding carries as glass fabric, described glass
Glass fiber cloth is soaked through receiving and distributing paste epoxy resin.
The described long shell that adds is that two panels housing fastens formation relatively, and two panels housing is bonding after being fastened and connected, two panels housing button
Closing junction and be provided with location structure, the most described location structure is protruding, groove location.
Use after technical solutions according to the invention, bring following beneficial effect:
1, after fan blade need not be pulled down by remodeling method of the present invention transforming blade, operator pass through elevator
Or hanging basket rises to the end of blade and directly transforms at the end of the blade of blower fan, simplify operation sequence, time saving and energy saving, joint
About cost.
2, after fan blade of the present invention transformation, extended length, wind sweeping area increases, and improves wind power generating set output
Power thus improve generated energy.
3, using catching groove to connect between the girder of blade junction of the present invention and bonding mode is dual fixing, connection can
Leaning on, the junction of described housing uses mode that is bonding and that be fastened dual fixing, connects reliable.
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1: blower fan structure schematic diagram of the present invention
Fig. 2: the present invention existing fan blade end view
End view after the improvement of Fig. 3: the present invention existing fan blade
Fig. 4: lengthened vanes portion of the present invention structural representation
Fan blade structure schematic diagram after Fig. 5: present invention improvement
Fig. 6: main body girder and the attachment structure schematic diagram of lengthening girder in one embodiment of the invention
Main body girder and the attachment structure schematic diagram of lengthening girder in another embodiment of Fig. 7: the present invention
Main body girder and the attachment structure schematic diagram of lengthening girder in another embodiment of Fig. 8: the present invention
Main body girder and the attachment structure schematic diagram of lengthening girder in another embodiment of Fig. 9: the present invention
The A-A sectional view of Figure 10: Fig. 5
Main body girder and the attachment structure schematic diagram of lengthening girder in another embodiment of Figure 11: the present invention
Wherein: 1, tower, 2, wheel hub, 3, blade body portion, 4, lengthened vanes portion, the 5, first opening, the 6, second opening, 7,
Main body girder, 8, lengthen girder, 9, body shell, 10, add long shell, 11, groove, 12, protruding, 15, be wound around band, 16, connect sudden strain of a muscle
Device, 17, arrester support.
Detailed description of the invention
As shown in figs. 1-11, a kind of blower fan of the present invention, it is specially a kind of lengthened vanes type blower fan, described blower fan includes
Tower 1, wheel hub 2, blade, actuating device, TRT, described blade includes blade body portion 3 and lengthened vanes portion 4, described
Lengthened vanes portion 4 is connected with described blade body portion 3 in the end in described blade body portion 3.Described blade body portion 3 is existing
The blade of blower fan, described lengthened vanes portion 4 is a ready-made leaf tip, and described lengthened vanes portion 4 is installed to described blade master
The length of blade can be increased on body 3, increase wind sweeping area, increase the ability absorbing wind energy, improve generated energy.
For improving the bonding strength between lengthened vanes portion 4 and blade body portion 3, described blade body portion 3 adds with blade
The connection end in long portion 4 is provided with an opening, and the supporting construction in described blade body portion 3 and/or lengthened vanes portion 4 is by this opening
Supporting construction in lengthened vanes portion corresponding with another or blade body portion connects.Described blade body portion 3 and/or lengthened vanes
Supporting construction in portion 4 is directly connected to, and can improve bonding strength.
Described blade body portion 3 includes the main body girder 7 being arranged on inside and is arranged on the body shell 9 of outside, described
The end of body shell 9 is provided with the first opening 5, and described main body girder 7 stretches out described first opening 5 and described lengthened vanes portion 4
Connect.The tip segment of the body shell 9 in excision blade body portion 3, forms the first opening 5, institute in this end of body shell 9
Stating main body girder 7 and stretch out described first opening 5, the end of main body girder 7 is positioned at the outside of the first opening 5, by lengthened vanes portion 4
The end lengthening girder 8 and main body girder 7 fix and be connected, owing to described main body girder 7 stretches out described first opening 5, main body
The end of girder 7 is positioned at the outside of the first opening 5, is fixed by the end of the lengthening girder 8 in lengthened vanes portion 4 with main body girder 7
During connection, in the peripheral operation of body shell 9, it is easy to operate, improves operating efficiency, accelerate the operation speed during prolongation of blade
Degree, allows blower fan enter duty faster.
Described blade body portion 3 includes the main body girder 7 being arranged on inside and is arranged on the body shell 9 of outside, described
The end of body shell 9 is provided with the first opening 5, and described main body girder 7 is positioned at described first opening 5, described lengthened vanes portion 4
It is extending at least partially into described first opening 5 to be connected with described main body girder 7.Body shell 9 leaf tip in excision blade body portion 3
Point, the first opening 5 is formed in the end of body shell 9, body shell 9 tip segment of excision is less, and described main body girder 7 does not has
Having and stretch out the first opening 5, the most described body shell 9 is more with the intersection in lengthened vanes portion 4, makes body shell 9 and leaf
The connection of sheet lengthening part 4 is more firm, it is to avoid the centrifugal force produced when wind speed is excessive and blade rotates makes lengthened vanes portion 4 with main
The junction of body housing 9 loosens.
Described lengthened vanes portion 4 include being arranged on inside lengthen that girder and 8 is arranged on outside add long shell 10, described
The end adding long shell 10 is provided with the second opening 6, and the second opening 6 is relative with the first opening 5, described lengthening girder 8 and described master
Body girder 7 connects, described in add long shell 10 and be connected with described body shell 9.Between each structure, the most corresponding connection makes connection more
Firmly, it is to avoid the centrifugal force produced when wind speed is excessive and blade rotates makes the junction to lengthened vanes portion 4 with blade body portion 3
Loosen.
Connected by catching groove between described main body girder 7 and described lengthening girder 8.Produce centrifugal when the blade of blower fan rotates
Power, described centrifugal force is outside along blade bearing of trend, is connected by catching groove between described main body girder 7 and described lengthening girder 8
After, at least can produce partly along blade bearing of trend inward force, part centrifugal power can be offset, it is to avoid produce when blade rotates
Centrifugal force makes to loosen the junction in lengthened vanes portion 4 with blade body portion 3.The most bonding company after preferably the two is coordinated by catching groove
Connect.The bearing of trend of described catching groove and described main body girder 7 at an angle, the most described catching groove and described main body girder 7 and
Lengthen girder 8 vertical.
Be specially described main body girder 7 sidepiece be provided with groove 11/ projection 12, the sidepiece of described lengthening girder 8 be provided with
Projection 12/ groove 11 of cooperation, the two is connected, described protruding 12 with the sidepiece of described main body girder 7 or lengthen girder 8
Sidepiece at an angle, the side of stretching out of the projection of the sidepiece of the most described main body girder 7 12 and described main body girder 12
Being obtuse angle or right angle to angle degree, the direction that stretches out of described main body girder 7 is for radially outer along sweeping wind circle by wheel hub
Direction.The projection 12 of the sidepiece setting of described lengthening girder 8 is with the sidepiece of described lengthening girder 8 at an angle, preferably described
The projection 12 of sidepiece setting lengthening girder 8 is obtuse angle or right angle with the direction angle degree that stretches out of described lengthening girder 8,
The direction that stretches out of described lengthening girder 8 is along sweeping wind circle radially outward direction by wheel hub 2.The groove 11/ that sidepiece is arranged
After protruding 12 cooperate, offset part centrifugal power, it is to avoid the centrifugal force produced when blade rotates makes lengthened vanes portion 4 and leaf
The junction of sheet main part 3 loosens.Bonding connection after preferably the two coordinates, improves connection reliability further.Further preferably described
Sidepiece arrange groove 11/ projection 12 cooperate after bonding connection, then the outer surface in junction is wound around at least two-layer glass
Glass fiber cloth or carbon cloth play the effect of reinforcement, improve connection reliability.
As shown in figure 11, the sidepiece of described main body girder 7 is provided with groove 11, and groove 11 is right angle trigonometry connected in star, described
The sidepiece lengthening girder 8 is provided with matched projection 12, and described protruding 12 is that right angled triangle is protruding, and right-angle side is clamping
Limit, hypotenuse is leading edge, makes installation more convenient.
Main body floor, described main body floor one end and described main body master it is provided with between described main body girder 7 and body shell 9
Beam 7 clamping or bonding, the described main body floor other end and described body shell 9 clamping or bonding, described lengthening girder 8 and lengthening
Lengthening floor, described lengthening floor one end and described lengthening girder 8 clamping or bonding, described lengthening floor it is provided with between housing 10
The other end and described add long shell 10 clamping or bonding.Main body floor is set and lengthening floor can improve main body girder and body shell
Between body, lengthen girder and the bonding strength adding between long shell, extend the service life of fan blade.
At described the second opening 6 adding long shell 10 with the first opening 5 of described body shell 9 at least partially overlapped,
Lap is bonding, and the outer surface of the most described junction is wound around and arranges winding band, and the described band that is wound around enters one for glass fabric
Step plays fixation.Described glass fabric soaks through receiving and distributing paste epoxy resin.Described winding band can be also carbon cloth, matter
Amount is light, tensile strength is good.
The described long shell 10 that adds fastens formation relatively for two panels housing, and two panels housing is bonding after being fastened and connected, two panels housing
The place of being fastened and connected is provided with location structure, and the most described location structure is protruding, groove location.Two panels housing is fixed by location structure
Snapping together after Wei, junction is by bonding connection.
Existing blower fan has plenty of and is limited by blade production technology at that time, it is impossible to processes longer fan blade, has plenty of
Consider bigger safety coefficient, cause the fan blade used to also have the biggest length room for promotion, have plenty of wind speed at that time
Relatively big, select relatively short fan blade can realize generated energy, nowadays, the production technology of fan blade is more and more ripe,
The length of blade is the most unrestricted, so the length of newly installed fan blade the most several years ago both increases length, but
If longer fan blade changed by the blower fan several years ago installed, cost is the highest, if transformed after existing fan blade is pulled down,
Losing time the most very much, and the dismounting of blade is the most complicated, cause transformation process loaded down with trivial details, waste time and energy, the present invention provides a kind of
The remodeling method of blower fan, for the problem that existing fan blade is shorter, lengthens the length of blade of existing blower fan, determines blower fan leaf
Appropriate length L of sheet, after blower fan quits work, by the length of existing fan blade in the case of not pulling down existing fan blade
Lengthen to described appropriate length L.Transformation is convenient, saves the transformation time, simplifies transformation operation, time saving and energy saving, cost-effective.
Step is as follows:
Step one: by blower fan stall,
Step 2: blower fan blade is rotated to certain angle, and locked, this blade is lengthened,
Step 3: this blade, to this angle, is lengthened by another blade of rotation blower fan,
Step 4: until completing all blades of blower fan to lengthen.
When determining described appropriate length L, can be true according to the load of existing fan blade and the on-site wind speed of existing blower fan
Determining appropriate length L of fan blade, described appropriate length L is being born under local wind conditions less than fan blade
Long length.General fan blade length has several conventional length such as 34m, 37.5m, 40m, 42.5m, can suitably carry
Rise the length stage of blade, then determine that this length is not less than fan blade born maximum load under local wind conditions.Or
Person suitably reduces the safety coefficient during design of described fan blade, increases length, as long as can determine that one than present length of blade
Long appropriate length, however it is not limited to said method.
The power of wind power generating set output is:The power coefficient of Cp blower fan in formula；A wind
The wind sweeping area of machine；ρ atmospheric density；V wind speed；So the length of lengthened blades, wind sweeping area can be increased, improve wind-force and send out
Group of motors output power thus improve generated energy.
If extended after being pulled down by fan blade, wasting time and energy, dismounting takes long enough, in addition it is also necessary to Large-scale Hoisting sets
Standby, and without blade being carried out disassembling operations in the present invention, simplify transformation operation, it is possible to save and transform the time in a large number.
By blower fan stall, blower fan blade is rotated to certain angle, operator's elevator or hanging basket are carried
It is raised to described leaf position, this blade is lengthened, rotate another blade of blower fan after completing to this angle, this blade is entered
Row lengthens, until completing all blades of blower fan to lengthen.
The method that existing fan blade is lengthened by: be respectively mounted a lengthened vanes at the vaned end of existing blower fan
Portion 4 is to described appropriate length L.Described lengthened vanes portion 4 includes being arranged on lengthening girder 8 and being arranged on the lengthening of outside of inside
Housing 10, described in add long shell 10 and described lengthening girder 8 end respectively with existing blower fan and be connected.Described existing fan blade
Including main body girder 7 and body shell 9, the body shell 9 at the blade tip of existing fan blade is excised formation one first opening
5, described lengthened vanes portion 4 include being arranged on inside lengthen girder 8 and be arranged on outside add long shell 10, described in add and encrust
The end of body 10 is provided with the second opening 6, and the second opening 6 is relative with the first opening 5, described lengthening girder 8 and described main body girder 7
Connect, described in add long shell 10 and be connected with described body shell 9.Between each structure, the most corresponding connection makes connection more firm, keeps away
The centrifugal force exempting to produce when wind speed is excessive to be rotated with blade makes to loosen the junction in lengthened vanes portion 4 with blade body portion 3.
Existing fan blade is rotated to certain angle, locked after, use at least one fixture to be pressed from both sides by existing fan blade
Handling, excised by blade tip, the end at the housing of existing fan blade forms the first opening, is placed in described lengthened vanes portion
In the hanging basket of one opening upwards, at least one fixture is used to be clamped in described lengthened vanes portion, and described blade clamping part is solid
It is scheduled on opening, mobile described hanging basket, makes lengthened vanes portion be directed at the first opening of existing fan blade end, by lengthened vanes
Portion is connected with existing fan blade.
Described hanging basket is connected on a support by a connecting rod, described connecting rod and support are respectively provided with rotatable spiral shell
Linkage, by length and the height of support of described screw mechanism regulation connecting rod, thus regulates the position of described hanging basket.
Described fixture includes the fixed part of clamping part and the stationary gripping part cooperated, the shape of described clamping part and institute
The matching form stating blade closes, and described fixed position is additionally provided with multiple rotatable on the outside of clamping part, described fixed part
Screw rod, one end of screw rod withstands on the outside of described clamping part, rotates the degree of cooperation in each screw rod adjustable holding portion and blade,
Thus regulate clamping force.
In another embodiment of the present invention, the method lengthened by existing fan blade is: at all blades of existing blower fan
End extend certain length respectively to described appropriate length L.Described existing blade includes main body girder 7 and body shell 9, will
Body shell 9 excision of existing vaned blade tip forms one first opening 5, and the main body girder 7 of blade interior is extended first
Opening 5, forms a lengthening girder 8, arranges and add long shell 10 outside the lengthening girder 8 extended, and will add long shell 10 with existing
Have between blade body housing 9 and connect.One lengthening girder 8 is fixed on described existing vaned main body girder 7 be positioned at first and open
The end of mouthfuls 5, adds long shell 10 outside setting theing lengthen girder 8, described in add long shell 10 and relatively fasten shape for two panels housing
Becoming, two panels housing is bonding after being fastened and connected, and the two panels housing place of being fastened and connected is provided with location structure, and the most described location structure is convex
Rise, groove positions.Two panels housing lay respectively at lengthen girder 8 both sides position by location structure after snap together, connection
Place is by bonding connection, then will add connection between long shell 10 and existing blade body housing 9.
Or existing fan blade is rotated to certain angle, locked after, use at least one fixture by existing blower fan leaf
Sheet clamps, and is excised by blade tip, and the end at existing fan blade forms the first opening, by the described girder extended and lengthening
Housing is placed in the hanging basket of an opening upwards, and fixes with described opening, mobile described hanging basket, makes the girder extended and adds
Long shell is respectively aligned to girder and the housing of existing fan blade, and the girder that would extend out is connected with existing vaned girder, will
Add long shell to be connected with the housing of existing fan blade.
Existing fan blade is lengthened 1.5 meters-3 meters (but the present invention is not intended to extension length) by the embodiment of the present invention, existing
The load having fan blade all leaves certain more than needed, and length of blade lengthens 1.5 meters-3 meters and holds not over the most vaned load
By scope, therefore length of blade lengthens 1.5 meters-3 meters wind sweeping areas adding blade, simultaneously not over the maximum load of blade
Lotus tolerance range.
Following table is existing fan blade a length of 37.5, lengthens to 40 meters, the generated energy that blade records before and after extending respectively,
During for annual mean wind speed 6 meter per second, generated energy increase about 6%, increase by 140000 degree of electricity, with degree 0.5 yuan of calculating of electricity, increase income
70000 yuan/year；
Blade surface increases Patterns of Placoid Scales of Sharks structure, and described Patterns of Placoid Scales of Sharks structure includes multiple ditch being arranged on blade surface
Groove, trench cross-section is that the surface design of V-type or U-shaped groove can reduce resistance about 8%.Or arrange imitative at blade surface
Sharkskin coating, the lift-drag ratio of flabellum can be improved more than 30% by this coating.May replace conventional coatings, wind turbine leaf will not be increased
Sheet weight, such that it is able to improve generating efficiency, annual estimates to be improved by the current output of a typhoon motor 5% to 6%, and
And noise can be reduced.Protruding sheet height (h) of described formation groove and ratio h/s >=0.6 times at interval (s) are fall resistance effects
Fruit is preferably.
Patterns of Placoid Scales of Sharks structure described in the body shell surface configuration in described blade body portion or imitative sharkskin coating, and/
Or Patterns of Placoid Scales of Sharks structure or imitative sharkskin coating described in the surface configuration adding long shell in described lengthened vanes portion, send out to improve
Electricity.
The foregoing is only the preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
Speech, without departing from the principles of the present invention, it is also possible to make various deformation and improvement, this also should be considered as the protection of the present invention
Scope.
Claims (5)
1. a lengthened vanes type blower fan, including tower, wheel hub, blade, actuating device, TRT, it is characterised in that: described
Blade includes blade body portion and lengthened vanes portion, and described lengthened vanes portion is at end and the described blade in described blade body portion
Main part connects, and described blade body portion includes the main body girder being arranged on inside and is arranged on the body shell of outside, described
The end of body shell is provided with the first opening, and described main body girder stretches out described first opening and is connected with described lengthened vanes portion,
Described lengthened vanes portion include being arranged on inside lengthen girder and be arranged on outside add long shell, described in add the end of long shell
It is relative that portion is provided with the second opening, the second opening and the first opening, described in add long shell and be connected with described body shell, described main body
Being connected by catching groove between girder and described lengthening girder, the sidepiece of described main body girder is provided with groove/land, described lengthening master
The sidepiece of beam is provided with matched projections/grooves, and the two is connected.
2. a lengthened vanes type blower fan, including tower, wheel hub, blade, actuating device, TRT, it is characterised in that: described
Blade includes blade body portion and lengthened vanes portion, and described lengthened vanes portion is at end and the described blade in described blade body portion
Main part connects, and described blade body portion includes the main body girder being arranged on inside and is arranged on the body shell of outside, described
The end of body shell is provided with the first opening, and described main body girder is positioned at described first opening, and described lengthened vanes portion is at least
Part stretches into described first opening and is connected with described main body girder, and described lengthened vanes portion includes the lengthening girder being arranged on inside
Be arranged on outside add long shell, described in add the end of long shell and be provided with the second opening, the second opening and the first opening relatively,
The described long shell that adds is connected with described body shell, is connected by catching groove, institute between described main body girder and described lengthening girder
The sidepiece stating main body girder is provided with groove/land, and the sidepiece of described lengthening girder is provided with matched projections/grooves, the two
It is connected.
A kind of lengthened vanes type blower fan the most according to claim 1 and 2, it is characterised in that: described main body girder and main body
Being provided with main body floor, described main body floor one end and described main body girder clamping or bonding between housing, described main body floor is another
One end and described body shell clamping or bonding, described lengthening girder and add and be provided with lengthening floor between long shell, described lengthening
Floor one end and described lengthening girder clamping or bonding, the described lengthening floor other end and described add long shell clamping or bonding.
A kind of lengthened vanes type blower fan the most according to claim 1 and 2, it is characterised in that add the second of long shell described in:
Opening part is least partially overlapped with the first opening part of described body shell, and lap is bonding, the outer surface of described junction
Arranging winding band, the described band that is wound around is glass fabric, and described glass fabric soaks through receiving and distributing paste epoxy resin.
A kind of lengthened vanes type blower fan the most according to claim 1, it is characterised in that adding long shell described in: is two panels housing
Relatively fastening formation, two panels housing is bonding after being fastened and connected, and the two panels housing place of being fastened and connected is provided with location structure, and described location is tied
Structure is protruding, groove location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510459905.XA CN105065196B (en) | 2015-07-30 | 2015-07-30 | A kind of lengthened vanes type blower fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510459905.XA CN105065196B (en) | 2015-07-30 | 2015-07-30 | A kind of lengthened vanes type blower fan |
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| CN105065196A CN105065196A (en) | 2015-11-18 |
| CN105065196B true CN105065196B (en) | 2016-11-23 |
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| CN201510459905.XA Expired - Fee Related CN105065196B (en) | 2015-07-30 | 2015-07-30 | A kind of lengthened vanes type blower fan |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107023440B (en) * | 2017-06-01 | 2023-12-19 | 无锡中车时代智能装备研究院有限公司 | Special clamp for wind power blade hoisting rotation |
| CN108087191B (en) | 2017-12-25 | 2020-01-31 | 江苏金风科技有限公司 | Sectional blade, method for connecting sectional blades and wind generating set |
| CN108223304B (en) * | 2018-02-28 | 2023-09-12 | 中国科学院工程热物理研究所 | Blade tip extension connection structure and assembly method thereof |
| WO2020118691A1 (en) * | 2018-12-14 | 2020-06-18 | 中国大唐集团新能源股份有限公司 | Fan and fan retrofitting method |
| WO2020118692A1 (en) * | 2018-12-14 | 2020-06-18 | 中国大唐集团新能源股份有限公司 | Blade extension assembly for wind turbine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008054323A1 (en) * | 2008-11-03 | 2010-05-12 | Energiekontor Ag | Rotor blade with blade tip extension for a wind turbine |
| US8328516B2 (en) * | 2009-09-29 | 2012-12-11 | General Electric Company | Systems and methods of assembling a rotor blade extension for use in a wind turbine |
| CN102200100A (en) * | 2011-06-02 | 2011-09-28 | 东方电气集团东方汽轮机有限公司 | Split-assembling-type blade of wind driven generator |
| CN102529092B (en) * | 2012-02-17 | 2014-12-31 | 北京可汗之风科技有限公司 | Method for lengthening wind power blade |
| CN103573563B (en) * | 2013-11-19 | 2016-08-17 | 北京可汗之风科技有限公司 | A kind of spar cap method of attachment lengthening blade of wind-driven generator |
| CN204805031U (en) * | 2015-07-30 | 2015-11-25 | 中国大唐集团新能源股份有限公司 | Blade adds elongated fan |
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