CN109185386A - It is a kind of to wave damping device applied to what Latticed Towers segmented stack shell was connected with stack shell - Google Patents
It is a kind of to wave damping device applied to what Latticed Towers segmented stack shell was connected with stack shell Download PDFInfo
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- CN109185386A CN109185386A CN201811218350.XA CN201811218350A CN109185386A CN 109185386 A CN109185386 A CN 109185386A CN 201811218350 A CN201811218350 A CN 201811218350A CN 109185386 A CN109185386 A CN 109185386A
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- 238000013016 damping Methods 0.000 title claims abstract description 57
- 230000036316 preload Effects 0.000 claims abstract description 19
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- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 238000004873 anchoring Methods 0.000 claims description 4
- 238000010248 power generation Methods 0.000 claims description 3
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- 238000004891 communication Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 4
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- 230000005611 electricity Effects 0.000 description 4
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
-
- 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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0241—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread with the possibility for the connection to absorb deformation, e.g. thermal or vibrational
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0266—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread using springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/073—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only leaf springs
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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
-
- 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
- Y02E10/728—Onshore wind turbines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses what a kind of segmented stack shell applied to Latticed Towers was connected with stack shell to wave damping device, the wind turbine tower is formed by connecting by multistage pylon stack shell (4) by bump joint (3), stack shell and stack shell junction form stack shell connection unit, and the stack shell connection unit includes upper section stack shell (11), the lower section stack shell connecting flange (17) with the upper section stack shell connecting flange (12) of upper section stack shell (11) integrally connected, lower section stack shell (16) and lower section stack shell (16) integrally connected；Damping device is waved described in when earthquake enables to the preload interface between segmented stack shell and stack shell that separation generation oscillating motion occurs.The damping device provided by the invention that waves is simple and efficient, structure novel, and installation is simple, convenient for safeguarding, securely and reliably, can effectively improve the shock resistance of the Latticed Towers such as wind turbine tower.
Description
Technical field
Damping device is waved the present invention relates to a kind of connection of Latticed Towers stack shell, and in particular to one kind is applied to towering tower
What frame segmented stack shell was connected with stack shell waves damping device.
Background technique
Wind-power electricity generation has significant society and environmental benefit, for pushing China can as clean renewable energy
The renewable sources of energy develop important in inhibiting, and country supports and encourages the exploitation to wind-powered electricity generation.China's wind resource is abundant, according to national gas
As office's statistics, China whole nation wind energy concentration is about 100W/m2, wind energy content is about 1.6x105MW, potentiality to be exploited are huge.With
This simultaneously, China is also the multiple country of earthquake.From 1 China of attached drawing effectively 2 Earthquake In China of wind power concentration distribution map and attached drawing
The comparison of dynamic peak accelerator zoning map can be seen that many areas such as China Qinghai, Shandong, northeast and southeastern coast and both contain
Wind energy abundant, be also faced with higher seismic risk.How damage that geological process may cause Wind turbines is mitigated
It is bad, it is to develop the problem of wind energy must face in China's relative region.
Wind power generating set is the equipment for converting wind energy into electric energy, mainly includes three blades, wheel hub, cabin and head tower
Frame belongs to a kind of tall and slender structure；In Wind turbines, tower frame for wind generating set is used to connect wind turbine cabin and foundation,
It is the main load bearing component of blower, undertakes horizontal force, vertical force and moment of flexure when wind-driven generator operation.By pylon and basic structure
At the clamped cantilever design system in bottom wind-driven generator is supported in the high-altitude of 60~100m to obtain sufficient stable wind energy,
It is the basis of fan safe operation.According to the difference of structure type, pylon is broadly divided into frustum type tower and lattice tower two
Kind.
Frustum type tower is using typical structure type in current large fan market, from the appearance point of view, by several segments
The cone cylinder of long 20-30m is formed by flanged joint, and diameter gradually decreases from bottom to up, whole in a circular table shape therefore also referred to as such
Pylon is circular table pylon.Lattice tower is similar to power transmission tower frame appearance, largely uses in early stage small-sized fan, in large size
It is gradually substituted by frustum type pylon in blower.
As more and more blower fan pylons are built in the active area of earthquake, geological process is likely to become blower fan pylon structure
One of control load, compared to wind load, wave load, geological process breaks the macrocyclic tall and slender structure such as blower fan pylon
It is bad more serious；Moreover, the enlargement with blower fan pylon structure develops, slenderness ratio increases, rigidity reduces, natural frequency of vibration drop
Low, overall structure becomes flexibility, and the harm of geological process bring is more very important.The segmented of pylon under geological process
The connecting portion of stack shell and stack shell and certain cabin components thereon can generate fatigue rupture, so as to cause the intensity of tower material
It substantially reduces, shortens pylon service life；Therefore, to the progress of blower fan pylon structure, effectively vibration damping control is very necessary.How
Vibration control is carried out by the glissando Latticed Towers similar to wind turbine tower etc., the power that wind tower is effectively reduced is rung
It answers, improves military service performance, extend fatigue life, be that the present invention needs technical problems to be solved.
The damping device such as Chinese patent connected in the prior art about Latticed Towers segmented stack shell with stack shell
CN202402220U, technical solution are: tower is made of the first tower 1, the second tower 2 and third tower 3, first tower
Cylinder 2 junction of the 1, second tower is equipped with the first rubber ring 7, and the second tower 2,3 junction of third tower are equipped with the second rubber ring 8.
Such as Chinese patent application CN104747385A, technical solution are again: described device includes changeover portion 1, connection ring 4, rubber
Layer 5, steel plate layer 6 and high-strength bolt 7, lamination ring-shaped rubber part by annular rubber layer 5 and doughnut-shaped steel plate layer 6 alternately superposition and
At both being made by sulfurization closely coupled.
Above-mentioned patent is directly arranged resilient cushion between segmented stack shell and stack shell, the damping effect of resilient cushion when earthquake
Limited, resilient cushion, which also lacks, waves mechanism, can not move the localized bumps to accompany, dissipation Seismic input energy by reciprocating swing
Amount reduces the earthquake response of pylon superstructure, guarantees that the ability of superstructure safety is also limited.
In addition, further relating to a kind of damping for connecting wind-driven generator 20 and column 12 in Chinese patent CN206600242U
Device can satisfy the damping requirement in the installation of wind-driven generator 20 and operational process, meets and wind-force hair is arranged on resident's building
The requirement of motor, the damper include upper end cover 1, lower convex platform 9 and honeycomb shock-absorbing sleeve 3, the upper end cover 1 and the lower convex platform 9
It is linked together by bolt 4, metal rubber shock pad 8 is set between the upper end cover 1 and lower convex platform 9, the upper end cover 1
Upper flange plate is arranged in lower end, and the top of the lower convex platform 9 is provided with lower flange, the upper flange plate and the lower flange
It is linked together by the bolt 4, metal pressure ring 7 is arranged in the top of the bolt 4, is also arranged with metal outside the bolt 4
Rubber sleeve 5, the metal-rubber set 5 are clipped between the metal pressure ring 7 and the upper flange plate；Although the technical solution is in spiral shell
The isolation mounting that metal pressure ring 7 and metal-rubber set 5 are formed is set between bolt top and upper flange plate, but the damping scheme is simultaneously
It is non-to be directed to earthquake, but for common vibration, nor be to use for the damping that tower section formula stack shell is connected with stack shell in earthquake
Meet damping requirement and the reduction in wind-driven generator installation and operational process to connect wind-driven generator 20 and column 12
Vibration intensity in house meets the requirement that wind-driven generator is arranged on resident's building.And the damping scheme is also without waving
The isolation mounting that mechanism, metal pressure ring 7 and metal-rubber set 5 are formed not is element with variable rigidity, which can not be by past
The localized bumps that rereeling pendular motion accompanies, dissipation inputting seismic energy, the program reduces the ground of pylon superstructure when earthquake
Shake reaction guarantees that the ability of superstructure safety is also limited.
Summary of the invention
For various defects present in existing wind turbine tower segmented stack shell and stack shell damping device for connecting, this hair
Bright is designed to provide a kind of structure novel, and installation is simple, convenient for safeguarding, securely and reliably, can effectively improve such as wind-force
The device for the contour towering pylon shock resistance of pylon that generates electricity.
Technical scheme is as follows:
What a kind of segmented stack shell applied to Latticed Towers was connected with stack shell waves damping device, described wind power generation stepped
Frame is formed by connecting by multistage pylon stack shell 4 by bump joint 3, and stack shell and stack shell junction form stack shell connection unit, described
Stack shell connection unit includes upper section stack shell 11, upper section stack shell connecting flange 12, lower section with 11 integrally connected of upper section stack shell
Stack shell 16, the lower section stack shell connecting flange 17 with 16 integrally connected of lower section stack shell；The damping device that waves is by for anchor
Gu several element with variable rigidity between pylon upper section stack shell connecting flange 12 and lower section stack shell connecting flange 17 are constituted；The change
Rigidity unit includes high-strength bolt 8, nut 9 and the earthquake isolating equipment 10 pre-tightened；The circumference of the upper section stack shell connecting flange 12 is equal
It is even to offer several first through hole 13 passed through for the high-strength bolt 8 of preload, correspondingly, the lower section stack shell connecting flange 17
Circumference is also uniformly provided with the second through-hole 14 that several high-strength bolts 8 for preload pass through, and 10 middle part of earthquake isolating equipment also opens up can
For the third through-hole 15 that the high-strength bolt 8 of preload passes through, when segmented stack shell connects anchoring with stack shell, several first through hole
13, the second through-hole 14, third through-hole 15 form butt hole and pass through for the high-strength bolt 8 of preload, and the earthquake isolating equipment 10 is compacted
It is anchored between 12/ lower section stack shell connecting flange 17 of upper section stack shell connecting flange and nut 9；The earthquake isolating equipment 10 is butterfly-type bullet
Spring group or common pressure spring group；Damping device is waved described in when earthquake enables to preload interface between segmented stack shell and stack shell
Separation occurs and generates oscillating motion.
Preferably, the spring in the disk spring group or common pressure spring group can be arranged with parallel/series.
Preferably, the Latticed Towers can communicate pylon or single hose electric power pylon for wind turbine tower, single hose
Frame.
Preferably, when the upper section stack shell connecting flange 12 and lower section stack shell connecting flange 17 connect, several first is logical
The butt hole that hole 13, the second through-hole 14, third through-hole 15 are formed is passed through for the high-strength bolt 8 of preload, and nut 9 fills shock insulation
10 compressions are set to be anchored between 12/ lower section stack shell connecting flange 17 of upper section stack shell connecting flange and nut 9.
Preferably, the earthquake isolating equipment 10 is located at the upper section stack shell connecting flange 12 and the lower section stack shell connecting flange
The unilateral side or two sides of 17 linkage interfaces.
A kind of anchorage part using the Latticed Towers segmented stack shell and stack shell for waving damping device connection of the invention,
Damping device and stack shell connection unit are waved including described；The damping device that waves is arranged in stack shell connection unit.
Compared with prior art, the present invention advantage is:
1 present invention is amplification with the shock-damping structure that wind turbine tower segmented stack shell is connected with stack shell, similar towering
Tower section formula stack shell and stack shell junction design structure is unique waves damping device, plays and waves cushioning effect, fill up
Domestic Latticed Towers segmented stack shell and stack shell wave the design blank of antidetonation.
2 damping devices that wave of the invention realize that the multistage of rigidity changes by multiple element with variable rigidity being evenly arranged,
To meet performance requirement of the Latticed Towers under different force active state.Under normal operating condition, damping device tool is waved
Have and connect identical rigidity with tradition, guarantees the normal work of Latticed Towers；In earthquake or the stronger geological process of setting up defences
Under, the preload interface for waving the element with variable rigidity of tension side in damping device separates, and rigidity significantly reduces, to make pylon
The oscillating motion that one side compression of generation, the other side are lifted, as shown in Fig. 7.
3 under set up defences earthquake or stronger geological process, on the one hand, and the natural vibration period of pylon is extended, thus
The predominant period of earthquake ground motion is avoided, seismic energy input is reduced；On the other hand by accompanying with reciprocating swing movement
Localized bumps, dissipation inputting seismic energy can further decrease the earthquake response of pylon superstructure, to guarantee that top is tied
The safety of structure.
4 element with variable rigidity of the invention include high-strength bolt, nut and the earthquake isolating equipment pre-tightened；The earthquake isolating equipment setting
Between up/down section stack shell connecting flange and nut, the earthquake isolating equipment can be butterfly spring group or common pressure spring group, pass through
Damping is waved in butterfly spring group or the realization of common pressure spring group, and structure of the invention is novel, and installation is simple, convenient for safeguarding, securely and reliably.
5 present invention can rationally design the number of spring in disk spring group or common pressure spring group according to needed for Aseismic Design
Amount, and disk spring group or common pressure spring group can be located at the unilateral side or two sides of the linkage interface of up/down section stack shell connecting flange；
Spring in disk spring group or common pressure spring group can be arranged in parallel, and can also be arranged in series, so that using more flexible height
Effect.
Detailed description of the invention
Fig. 1 China effectively wind power concentration distribution map；
Fig. 2 Earthquake In China moves peak accelerator zoning map；
Fig. 3 wind turbine tower connect anchorage part schematic diagram with basis；
Fig. 4 waves the element with variable rigidity sectional view of damping device；
Fig. 5 waves the element with variable rigidity top view of damping device；
Fig. 6 stack shell waves damping device schematic diagram；
Oscillating motion schematic diagram occurs for pylon under Fig. 7 geological process；
Fig. 8 waves damping device element with variable rigidity tension behavior schematic diagram.
Description of symbols: generator bay 1, blade 2, bump joint 3, pylon stack shell 4, pedestal 5, ground 6, basis 7, height
Strength bolt 8, nut 9, earthquake isolating equipment 10, upper section stack shell 11, upper section stack shell connecting flange 12, first through hole 13, the second through-hole 14,
Third through-hole 15, lower section stack shell 16, lower section stack shell connecting flange 17, compression-side high-strength bolt 18, tension side high-strength bolt 19, by
Side group seat is drawn to lift distance S, traditional high-strength bolt connection tension curve a, element with variable rigidity tension curve b, pre-tighten interfacial separation
Point c, groups of springs compress point d, high-strength bolt yield point e, serviceability limit state point f, seismic performance of setting up defences point g, seldom
Meet seismic performance point h.
Specific embodiment
Next combined with specific embodiments below invention is further explained, but does not limit the invention to these tools
Body embodiment.One skilled in the art would recognize that present invention encompasses may include in Claims scope
All alternatives, improvement project and equivalent scheme.
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
It as shown in Fig. 3, is a typical wind turbine tower and basis connection anchorage part schematic diagram, the wind-force
Power generation pylon is formed by connecting by multistage pylon stack shell 4 by bump joint 3, and the wind turbine tower upper end connects generator bay
1 and blade 2 form wind power generating set；The wind turbine tower lower end is pedestal 5, the base that the pedestal 5 passes through steel
Plinth ring or the connection of anchor bolt structure are located at the reinforced concrete foundation 7 below of ground 6.
By the way that of the invention wave is arranged in attached wind turbine tower segmented stack shell shown in Fig. 3 and stack shell linkage interface
Damping device can permit and reciprocating swing movement occurs between tower section formula stack shell and stack shell under violent earthquake effect, reaches
To the purpose of damping.The damping device that waves is set between tower section formula stack shell and stack shell.
As shown in attached drawing 3,4,5,6, the wind turbine tower is connected by multistage pylon stack shell 4 by bump joint 3
Form a stack shell connection unit at, stack shell and stack shell junction, the stack shell connection unit include upper section stack shell 11, with it is described
The upper section stack shell connecting flange 12 of 11 integrally connected of upper section stack shell, lower section stack shell 16, with 16 integrally connected of lower section stack shell
Lower section stack shell connecting flange 17.
The damping device that waves is by for being anchored at pylon upper section stack shell connecting flange 12 and lower section stack shell connecting flange
Several element with variable rigidity between 17 are constituted；The element with variable rigidity includes high-strength bolt 8, nut 9 and the earthquake isolating equipment pre-tightened
10, the earthquake isolating equipment 10 can be butterfly spring group or common pressure spring group；The circumference of the upper section stack shell connecting flange 12 is equal
It is even to offer several first through hole 13 passed through for the high-strength bolt 8 of preload, correspondingly, the lower section stack shell connecting flange 17
Circumference is also uniformly provided with the second through-hole 14 that several high-strength bolts 8 for preload pass through, and 10 middle part of earthquake isolating equipment also opens up can
For the third through-hole 15 that the high-strength bolt 8 of preload passes through, the earthquake isolating equipment 10 is set to 12/ lower section of upper section stack shell connecting flange
Between stack shell connecting flange 17 and nut 9.When the upper section stack shell connecting flange 12 and lower section stack shell connecting flange 17 connect,
Several first through hole 13, the second through-hole 14, third through-hole 15 form butt hole and pass through for the high-strength bolt 8 of preload, finally use spiral shell
10 clamping of earthquake isolating equipment is anchored between 12/ lower section stack shell connecting flange 17 of upper section stack shell connecting flange and nut 9 by mother 9.
It should be noted that technical staff can rationally design disk spring group or common pressure according to needed for Aseismic Design
The quantity of spring in spring group, disk spring group or common pressure spring group can be located at the upper section stack shell connecting flange 12 and the lower section
The unilateral side of 17 linkage interface of stack shell connecting flange is not shown, may be alternatively located at the upper section stack shell connecting flange 12 and the lower section cylinder
The two sides of 17 linkage interface of body connecting flange are as shown in Fig. 4.In addition, according to needed for Aseismic Design and pretightning force and waving
Spring in the size of displacement, disk spring group or common pressure spring group can be arranged in parallel, and can also be arranged in series.
As shown in Fig. 6, it is connected applied to Latticed Towers segmented stack shell with stack shell for the damping device that waves of the invention
The schematic diagram of anchoring: it is a kind of that anchorage part is connected with stack shell using the Latticed Towers segmented stack shell for waving damping device connection,
Including waving damping device and stack shell connection unit；The stack shell connection unit includes upper section stack shell 11 and the upper section stack shell
Upper section stack shell connecting flange 12, lower section stack shell 16, the lower section stack shell with 16 integrally connected of lower section stack shell of 11 integrally connecteds
Connecting flange 17；The damping device that waves is arranged in the upper section stack shell connecting flange 12 and the lower section stack shell connecting flange
Between 17；Wherein, the damping device that waves includes several element with variable rigidity；The circumferentially uniform cloth of upper section stack shell connecting flange 12
Several first through hole 13 are equipped with, correspondingly, lower section stack shell connecting flange 17 has also circumferentially been evenly arranged several second through-holes 14,
When the upper section stack shell connecting flange 12 and about 17 lower section stack shell connecting flange docking anchoring, several variation rigidities
In the butt hole that unit is evenly arranged in first through hole 13 and the second through-hole 14 is formed.
The damping device that waves of the invention realizes that the multistage of rigidity changes by multiple element with variable rigidity being evenly arranged, with
Meet performance requirement of the wind turbine tower under different force active state.Under normal operating condition, damping device is waved
With identical rigidity is connect with tradition, guarantee the normal work of wind turbine tower；On earthquake or the stronger ground of setting up defences
Shake effect under, as shown in Fig. 7, wave the element with variable rigidity of tension side in damping device preload interface occur separation referring to by
Side high-strength bolt 19 is drawn, rigidity significantly reduces, so that the side compression that pylon occurs is referring to compression-side high-strength bolt 18, another
Lift the oscillating motion that distance S is lifted referring to tension side pedestal in side.In this case, on the one hand, the natural vibration period of pylon is able to
Extend, to avoid the predominant period of earthquake ground motion, reduces seismic energy input；On the other hand by being transported with reciprocating swing
The dynamic localized bumps to accompany, dissipation inputting seismic energy can further decrease the earthquake response of pylon superstructure, to protect
Demonstrate,prove the safety of superstructure.
As shown in Fig. 8, damping device element with variable rigidity tension behavior schematic diagram is waved for the present invention, it is right referring to this figure
Mechanism of the invention is described below:
Curve a is that traditional high-strength bolt connects tension curve；Curve b is element with variable rigidity tension curve；Work as wind-power electricity generation
When pylon is in normal operating condition, wave Moment that damping device is subject to it is smaller when, tension side becomes what rigid unit was subject to
Pulling force is less than its initial pretightening force, and linkage interface is in impaction state, and element with variable rigidity has very big tension rigidity；Work as pylon
When surmounting serviceability limit state point f under the short-term side force effect such as earthquake, at the beginning of the pulling force that element with variable rigidity is subject to is greater than it
Beginning pretightning force, referring to interfacial separation point c is pre-tightened, linkage interface separates at this time, under the tension rigidity of element with variable rigidity is significant
Drop, and linear behavior is shown referring to the seismic performance point g that sets up defences in biggish deformation range.If external action is into one
Step is increased referring to rarely occurred earthquake effect propety point h, and butterfly spring group or common pressure spring group are fully pressed and compress referring to groups of springs
Point d, the tension rigidity of element with variable rigidity, which has, to be significantly increased, until high-strength bolt tension is surrendered referring to high-strength bolt yield point e.
Compared with traditional high-strength bolt connection, element with variable rigidity significantly improves the deformability of junction, has postponed high-strength bolt
Surrender.
It should be understood that the present invention describe method the step of be only exemplary description, it is successively carried out
Time sequencing does not have special requirement, unless itself there is inevitable sequencing relationship.
As it appears from the above, although the present invention is illustrated with reference to limited embodiment and attached drawing, belonging to the present invention
Have can carrying out various modifications and deform from this record per capita for usual knowledge in field.Other embodiments and power as a result,
Sharp claim and equivalent belong to scope of protection of the claims.
Claims (6)
1. what a kind of segmented stack shell applied to Latticed Towers was connected with stack shell waves damping device, which is characterized in that described
Latticed Towers are formed by connecting by multistage pylon stack shell (4) by bump joint (3), and stack shell forms stack shell with stack shell junction and connects
Unit, the stack shell connection unit include upper section stack shell (11), the upper section stack shell company with upper section stack shell (11) integrally connected
Acting flange (12), lower section stack shell (16), the lower section stack shell connecting flange (17) with lower section stack shell (16) integrally connected；It is described
Damping device is waved by for being anchored between pylon upper section stack shell connecting flange (12) and lower section stack shell connecting flange (17)
Several element with variable rigidity are constituted；The element with variable rigidity includes high-strength bolt (8), nut (9) and the earthquake isolating equipment (10) pre-tightened；
The even circumferential of the upper section stack shell connecting flange (12) offers several first through hole passed through for the high-strength bolt (8) of preload
(13), correspondingly, the circumference of the lower section stack shell connecting flange (17) is also uniformly provided with several high-strength bolts (8) for preload
The second through-hole (14) passed through, earthquake isolating equipment (10) middle part also open up the third through-hole passed through for the high-strength bolt (8) of preload
(15), when connecting anchoring when segmented stack shell with stack shell, several first through hole (13), the second through-hole (14), third through-hole (15)
It forms butt hole to pass through for the high-strength bolt (8) of preload, the earthquake isolating equipment (10), which is compacted, is anchored in upper section stack shell connection method
Between blue (12)/lower section stack shell connecting flange (17) and nut (9)；The earthquake isolating equipment (10) is butterfly spring group or common pressure
Spring group；Damping device is waved described in when earthquake enables to the preload interface between segmented stack shell and stack shell that separation generation occurs
Oscillating motion.
2. according to claim 1 wave damping device, it is characterised in that: in the butterfly spring group or common pressure spring group
Spring can be arranged with parallel/series.
3. -2 described in any item waving damping device according to claim 1, it is characterised in that: the Latticed Towers can be wind
Power power generation pylon, single hose communication pylon or single hose power transmission line pylon.
4. according to claim 1-3 wave damping device, it is characterised in that: when the upper section stack shell connection method
When blue (12) and lower section stack shell connecting flange (17) connect, several first through hole (13), the second through-hole (14), third through-hole (15)
The butt hole formed is passed through for the high-strength bolt (8) of preload, and earthquake isolating equipment (10) are compressed and be anchored in upper section cylinder by nut (9)
Body connecting flange (12)/between lower section stack shell connecting flange (17) and nut (9).
5. according to claim 1-4 wave damping device, it is characterised in that: the earthquake isolating equipment (10) is located at
The unilateral side or two sides of the upper section stack shell connecting flange (12) and lower section stack shell connecting flange (17) linkage interface.
6. it is a kind of using waved described in claim 1-5 any one damping device connection Latticed Towers segmented stack shell and
The anchorage part of stack shell, including described wave damping device and stack shell connection unit；It is characterized in that, described wave damping device
It is arranged in stack shell connection unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811218350.XA CN109185386A (en) | 2018-10-19 | 2018-10-19 | It is a kind of to wave damping device applied to what Latticed Towers segmented stack shell was connected with stack shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811218350.XA CN109185386A (en) | 2018-10-19 | 2018-10-19 | It is a kind of to wave damping device applied to what Latticed Towers segmented stack shell was connected with stack shell |
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| Publication Number | Publication Date |
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| CN109185386A true CN109185386A (en) | 2019-01-11 |
Family
ID=64945618
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811218350.XA Withdrawn CN109185386A (en) | 2018-10-19 | 2018-10-19 | It is a kind of to wave damping device applied to what Latticed Towers segmented stack shell was connected with stack shell |
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| Country | Link |
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| CN (1) | CN109185386A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110242508A (en) * | 2019-07-12 | 2019-09-17 | 上海泰胜(东台)电力工程机械有限公司 | High vibration damps tower frame for wind generating set |
| CN111691734A (en) * | 2020-05-08 | 2020-09-22 | 海南大学 | Assembled self-resetting tower type structure |
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| CN205559174U (en) * | 2016-02-03 | 2016-09-07 | 国电联合动力技术有限公司 | Wind turbine generator tower drum |
| CN208885868U (en) * | 2018-10-19 | 2019-05-21 | 吴修玲 | It is a kind of to wave damping device applied to what Latticed Towers segmented stack shell was connected with stack shell |
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| CN101985967A (en) * | 2010-10-29 | 2011-03-16 | 中国电力科学研究院 | Damping device for electrical equipment |
| CN201908788U (en) * | 2010-12-30 | 2011-07-27 | 李红 | Tower of wind power generator |
| CN202402220U (en) * | 2011-12-16 | 2012-08-29 | 江苏金锋佳特机电有限公司 | Damping wind power generation tower |
| CN203130751U (en) * | 2013-02-25 | 2013-08-14 | 中国石油化工股份有限公司 | Disc spring metal rubber composite buffering anti-looseness part |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110242508A (en) * | 2019-07-12 | 2019-09-17 | 上海泰胜(东台)电力工程机械有限公司 | High vibration damps tower frame for wind generating set |
| CN111691734A (en) * | 2020-05-08 | 2020-09-22 | 海南大学 | Assembled self-resetting tower type structure |
| CN111691734B (en) * | 2020-05-08 | 2022-11-25 | 海南大学 | Assembled is from restoring to throne tower structure |
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