CN206625942U - A kind of offshore wind turbine wind wheel system sealing structure - Google Patents

A kind of offshore wind turbine wind wheel system sealing structure Download PDF

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Publication number
CN206625942U
CN206625942U CN201720306036.1U CN201720306036U CN206625942U CN 206625942 U CN206625942 U CN 206625942U CN 201720306036 U CN201720306036 U CN 201720306036U CN 206625942 U CN206625942 U CN 206625942U
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CN
China
Prior art keywords
kuppe
wind turbine
wind wheel
blade
offshore wind
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Active
Application number
CN201720306036.1U
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Chinese (zh)
Inventor
仵文松
陶友传
邵沛泽
周祖田
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China Shipbuilding Heavy Industry Offshore Wind Power Ltd By Share Ltd
CSIC Haizhuang Windpower Co Ltd
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China Shipbuilding Heavy Industry Offshore Wind Power Ltd By Share Ltd
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Priority to CN201720306036.1U priority Critical patent/CN206625942U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

A kind of offshore wind turbine wind wheel system sealing structure provided by the utility model, including being arranged on engine room cover sealing ring and the blade seal ring being arranged on blade on kuppe, engine room cover sealing ring and blade seal ring form the first passage of multiple labyrinth sealings.This programme has multiple labyrinth sealing connectivity parts by providing this passage, it can stop that extraneous gas enters into offshore wind turbine wind wheel, improve the sealing effectiveness of offshore wind turbine wind wheel, reduce in offshore wind turbine wind wheel parts because corrosion causes the fatigue failure risk of fatigue crack.

Description

A kind of offshore wind turbine wind wheel system sealing structure
Technical field
The utility model belongs to technical field of wind power generation, more particularly to a kind of offshore wind turbine wind wheel system sealing structure.
Background technology
Due to the peculair motion feature of blower fan, there is relative gyration between blade and kuppe.For relative knot Rotary dynamic seal between conjunction face, machinery industry common practice is to use contact seal, because wind wheel system external structure is equal Made using composite, deform larger in assembling process, cause at cooperation that connecing for similar mechanical parts precision-fit can not be used Touch seals.Existing wind-powered electricity generation industry common practice is to use individual layer non-contacting seal, empty between seal member and part to be sealed Gap is larger, and extraneous etchant gas is directly entered wind wheel.To meet the corrosion of the particularly marine high salt fog of the severe running environment of wind field Service life requirement under environment, it has to using the method passive protection of the anti-corrosion grade of parts in increase wind wheel.In addition, There is also relative gyration, antiseptic effect of its rotary dynamic seal to parts in wind wheel between kuppe and engine room cover Play a role.
Therefore, how to improve sealing effectiveness, reduce Parts failure risk, be that those skilled in the art are urgently to be resolved hurrily The problem of.
Utility model content
The utility model provides a kind of offshore wind turbine wind wheel system sealing structure, improves sealing effectiveness, reduces zero Part fatigue failure risk.
In order to solve the above technical problems, the utility model provides a kind of offshore wind turbine wind wheel system sealing structure, including It is arranged on kuppe sealing ring and the blade seal ring being arranged on blade on kuppe, the kuppe sealing ring and institute State the first passage that blade seal ring forms multiple labyrinth sealings.
Preferably, in above-mentioned offshore wind turbine wind wheel system sealing structure, the kuppe sealing ring is U-shaped board and its U Type opening is air inlet;The section of the blade seal ring is Z-shaped section, and the blade seal ring includes what is be sequentially connected Preceding bending plate, middle bending plate and rear bending plate, the preceding bending plate block at the U-shaped opening of the U-shaped board and leave sky Gap, the middle bending plate form the middle transition section of the first passage, the rear bending plate with the kuppe sealing ring It is arranged on the blade.
Preferably, in above-mentioned offshore wind turbine wind wheel system sealing structure, the first passage and the blade with it is described The hairbrush for sealing is provided between the second channel that kuppe is formed.
Preferably, in above-mentioned offshore wind turbine wind wheel system sealing structure, in addition to the engine room cover being arranged in engine room cover Sealing ring, the engine room cover sealing ring include the third channel of multiple labyrinth sealings.
Preferably, in above-mentioned offshore wind turbine wind wheel system sealing structure, in addition to the kuppe being arranged on kuppe Ventilation mechanism.
A kind of offshore wind turbine wind wheel system sealing structure provided by the utility model, including it is arranged on cabin on kuppe Cover sealing ring and the blade seal ring being arranged on blade, engine room cover sealing ring and blade seal ring form multiple labyrinth types The first passage of sealing.This programme has multiple labyrinth sealing connectivity parts by providing this passage, can stop extraneous gas Enter into offshore wind turbine wind wheel, improve the sealing effectiveness of offshore wind turbine wind wheel, reduce parts in offshore wind turbine wind wheel Because corrosion causes the fatigue failure risk of fatigue crack.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also Other accompanying drawings can be obtained according to the accompanying drawing of offer.
A kind of structural representation for offshore wind turbine wind wheel system sealing structure that Fig. 1 is provided by this programme;
The partial structural diagram of sealing structure between blade and kuppe that Fig. 2 is provided by this programme;
The partial structural diagram of sealing structure between kuppe and engine room cover that Fig. 3 is provided by this programme.
In upper figure:1. kuppe;2. kuppe sealing ring;3. blade seal ring;4. blade;7. hairbrush;8. engine room cover is close Seal ring;9. kuppe ventilation mechanism.
Embodiment
Core of the present utility model is to provide a kind of offshore wind turbine wind wheel system sealing structure, improves sealing effectiveness, drop Low Parts failure risks.
In order that those skilled in the art more fully understands technical scheme provided by the utility model, below in conjunction with attached The utility model is described in further detail with specific embodiment for figure.
Fig. 1-Fig. 3, a kind of offshore wind turbine wind wheel system sealing structure provided by the utility model are refer to, including is set Kuppe sealing ring 2 and the blade seal ring 3 being arranged on blade 4, kuppe sealing ring 2 and blade on kuppe 1 Sealing ring 3 forms the first passage of multiple labyrinth sealings.This programme has multiple roundabout connectivity parts, energy by providing this passage Enough stop that extraneous gas enters into offshore wind turbine wind wheel, reduces the entrance problem of marine salt air corrosion gas as far as possible, Improve the sealing effectiveness of offshore wind turbine wind wheel, reduce in offshore wind turbine wind wheel parts because corrosion causes the tired of fatigue crack Labor failure risk.Meanwhile also reduce parts anti-corrosion cost.
Further, kuppe sealing ring 2 is U-shaped board, and U-shaped board has U-shaped opening, and by two side plates and a bottom plate group Into, air inlet is arranged at U-shaped opening, for air intake rise barrier effect, reduce marine salt air corrosion gas as far as possible Entrance problem.The section of blade seal ring 3 is Z-shaped section, and the blade seal ring (3) includes the preceding bending being sequentially connected Plate, middle bending plate and rear bending plate, the preceding bending plate blocks at the U-shaped opening of the U-shaped board and leaves space, described Middle bending plate forms the middle transition section of the first passage with the kuppe sealing ring (2), and the rear bending plate is set On the blade (4).The labyrinth sealing passage that extraneous gas is formed by U-shaped board with blade seal ring, along leaf The preceding bending plate of piece sealing ring (3) Z-shaped plate enters the labyrinth sealing that bending plate and the side plate of U-shaped board are formed among Z-shaped plate and led to Road, the second channel finally formed again by blade 4 and kuppe 1, could enter in blower fan wind wheel system.Because passage is with leading to It is in almost 90 degree of angles between the axis in road so that extraneous gas is hardly entered in blower fan wind wheel.
Further, passage that is being formed between first passage and blade 4 and kuppe 1 and being connected with first passage is Second channel, the hairbrush for sealing is provided between second channel.In a kind of embodiment, as shown in figure 3, U-shaped Gap between another transverse slat of the one of side plate and Z-shaped plate of plate is provided with hairbrush 7.In blade 4 and the shape of kuppe 1 Into second channel in be additionally provided with hairbrush 7.
This programme also includes the engine room cover sealing ring 8 being arranged in engine room cover, and engine room cover sealing ring 8 includes multiple labyrinth types The third channel of sealing, third channel are similar to labyrinth-like sealing structure, and third channel equally can be to the entrance of extraneous gas Drag effect is played, reduces the entrance problem of marine salt air corrosion gas as far as possible, so as to reach sealing effectiveness.In addition originally Scheme also includes the kuppe ventilation mechanism 9 being arranged on kuppe 1, and because the cabin interior sealing is tight, for reply, attendant is even You can have a comfortable environment after entering wind wheel, can be used in taking a breath to sealed environment, gas circulation.In third channel It may also set up hairbrush 7.
Specific case used herein is set forth to principle of the present utility model and embodiment, above example Explanation be only intended to help and understand method and its core concept of the present utility model.It should be pointed out that for the art For those of ordinary skill, on the premise of the utility model principle is not departed from, some change can also be carried out to the utility model Enter and modify, these are improved and modification is also fallen into the protection domain of the utility model claims.

Claims (5)

1. a kind of offshore wind turbine wind wheel system sealing structure, it is characterised in that sealed including being arranged on kuppe on kuppe (1) Ring (2) and the blade seal ring (3) being arranged on blade (4), the kuppe sealing ring (2) and the blade seal ring (3) first passage of multiple labyrinth sealings is formed.
2. offshore wind turbine wind wheel system sealing structure according to claim 1, it is characterised in that the kuppe sealing ring (2) it at U-shaped board and its U-shaped opening is air inlet to be;The section of the blade seal ring (3) is Z-shaped section, and the blade is close Seal ring (3) includes preceding bending plate, middle bending plate and the rear bending plate being sequentially connected, and the preceding bending plate is blocked described U-shaped At the U-shaped opening of plate and space is left, the middle bending plate forms the first passage with the kuppe sealing ring (2) Middle transition section, the rear bending plate are arranged on the blade (4).
3. offshore wind turbine wind wheel system sealing structure according to claim 2, it is characterised in that the first passage and institute State the hairbrush (7) being provided between blade (4) and the second channel of the kuppe (1) formation for sealing.
4. the offshore wind turbine wind wheel system sealing structure according to claim 1,2 or 3, it is characterised in that also include setting Engine room cover sealing ring (8) in engine room cover, the engine room cover sealing ring (8) include the third channel of multiple labyrinth sealings.
5. offshore wind turbine wind wheel system sealing structure according to claim 1, it is characterised in that also include being arranged on water conservancy diversion Cover the kuppe ventilation mechanism (9) on (1).
CN201720306036.1U 2017-03-27 2017-03-27 A kind of offshore wind turbine wind wheel system sealing structure Active CN206625942U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720306036.1U CN206625942U (en) 2017-03-27 2017-03-27 A kind of offshore wind turbine wind wheel system sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720306036.1U CN206625942U (en) 2017-03-27 2017-03-27 A kind of offshore wind turbine wind wheel system sealing structure

Publications (1)

Publication Number Publication Date
CN206625942U true CN206625942U (en) 2017-11-10

Family

ID=60208994

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720306036.1U Active CN206625942U (en) 2017-03-27 2017-03-27 A kind of offshore wind turbine wind wheel system sealing structure

Country Status (1)

Country Link
CN (1) CN206625942U (en)

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