CN208431113U - Wind turbine gearbox heat exchange mechanisms and wind power generating set containing the mechanism - Google Patents
Wind turbine gearbox heat exchange mechanisms and wind power generating set containing the mechanism Download PDFInfo
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- CN208431113U CN208431113U CN201821062551.0U CN201821062551U CN208431113U CN 208431113 U CN208431113 U CN 208431113U CN 201821062551 U CN201821062551 U CN 201821062551U CN 208431113 U CN208431113 U CN 208431113U
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- air
- heat exchange
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- heat
- room cover
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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 utility model discloses a kind of wind turbine gearbox heat exchange mechanisms, including heat-exchanging component and the air intake passage and air-out passage that are separately connected with its air inlet and air outlet.Heat-exchanging component is arranged outside gear-box comprising the heat exchange core body containing oil passage and the heat exchange driving unit connecting with heat exchange core body.Oil passage is used to recycle the lubricating oil being pumped into gear-box by grease pump;The air intake of air intake passage is used to be connected to by engine room cover air inlet with nacelle exterior, and the outlet air end of air-out passage is used to be connected to by engine room cover air outlet with nacelle exterior.Also disclose a kind of wind power generating set of application wind turbine gearbox heat exchange mechanisms.The utility model is by changing recuperated gas import, by cold air outside cabin heat exchange core body flowing, by the heat derives of heat exchange core body internal lubrication oil, improve heat exchange efficiency, avoid bearing failure problem caused by gear-box high temperature, gearbox fault rate is reduced, whole aircraft reliability is promoted, ensures Wind turbines generated energy.
Description
Technical field
The utility model relates to technical field of wind power, more particularly to a kind of wind turbine gearbox heat exchange mechanisms and contain the machine
The wind power generating set of structure.
Background technique
When wind power generating set is run, gear-box can distribute amount of heat, if heat derives can be caused tooth not in time
Machine halt trouble is quoted in the raising of roller box lubricating oil temperature and bearing temperature, loses generated energy;Meanwhile temperature raising can also change
Magnitude of interference and bearing clearance, reduction lubricating oil viscosity, also result in bearing skidding, clamping stagnation, gear between bearing and gear when serious
Cracking causes gearbox failure, causes more serious accident.
When the existing air-cooled heat-exchange system of domestic and international wind power generating set designs, heat exchanger is designed at engine room inside, cabin
Temperature directly affects heat exchanger heat-sinking capability.Especially summer, high temperature in cabin, heat exchanger heat-sinking capability are decreased obviously, frequently
Gear-box high temperature machine halt trouble is quoted, generated energy is influenced.It is not being heat exchanger heat radiation energy the shortcomings that heat exchanger structure at present
Power is inadequate, but the structure of heat-exchange system causes heat exchanger that can not play maximum heat dissipation performance.
Therefore to reduce gearbox fault rate, the utility model is founded the new wind turbine gearbox heat exchange mechanisms of one kind and is contained
The wind power generating set of the mechanism, makes it on the basis of not changing heat exchanger structure, promotes exchange capability of heat, becomes current industry
Pole needs improved target.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of wind turbine gearbox heat exchange mechanisms, make it using outside cabin
Cold air cools down to gear box lubricating oil, exchange capability of heat is promoted, to overcome the shortcomings of existing gear-box heat exchange mechanisms.
In order to solve the above technical problems, the utility model provides a kind of wind turbine gearbox heat exchange mechanisms, including heat-exchanging component
The air intake passage and air-out passage being separately connected with the air inlet and air outlet with heat-exchanging component,
The heat-exchanging component is arranged outside gear-box comprising the heat exchange core body containing oil passage and changes with described
The heat exchange driving unit of hot core connection, the oil passage are used to recycle the lubrication being pumped into gear-box by grease pump
Oil;
The air intake of the air intake passage is used to be connected to by engine room cover air inlet with nacelle exterior, the air-out passage
Outlet air end is used to be connected to by engine room cover air outlet with nacelle exterior.
As a kind of improvement of the utility model, the heat exchange driving unit includes hot-swappable fans, fan motor and setting
Fan dome outside hot-swappable fans and fan motor, the fan motor drive hot-swappable fans rotation, realize it is described into
The air inlet in wind channel is discharged after passing through the heat exchange core body from the air-out passage.
It is further improved, the inlet side of the fan dome is arranged in the heat exchange core body.
It is further improved, the top of gear-box is arranged in by bracket for the heat-exchanging component.
It is further improved, the air intake passage and/or air-out passage are all made of flexible ventilation duct.
It is further improved, the air intake passage and/or air-out passage are all made of rigidity ventilation shaft.
It is further improved, the oil passage uses coil arrangement.
The utility model also provides a kind of wind power generating set using above-mentioned wind turbine gearbox heat exchange mechanisms, the heat exchange
The gear-box periphery in the wind generating set engine room is arranged in component, and the oil passage in the heat exchange core body passes through profit
Oil pump recycles the lubricating oil being pumped into the gear-box, and the air intake of the air intake passage passes through engine room cover air inlet and cabin
The outlet air end of outside connection, the air-out passage is connected to by engine room cover air outlet with nacelle exterior.
Further improvement, the engine room cover air inlet and engine room cover air outlet are oppositely arranged on the side of the engine room cover respectively
Face.
Further improvement, the engine room cover air inlet and engine room cover air outlet are arranged at the bottom of the engine room cover.
By adopting such a design, the utility model at least has the following advantages:
1, the utility model is connected to by the way that the air intake of air intake passage is passed through engine room cover air inlet with nacelle exterior, and
The outlet air end of air-out passage is connected to by engine room cover air outlet with nacelle exterior, is realized the design for changing gas flow, is passed through
By cold air outside cabin heat exchange core body flowing, by the heat derives of heat exchange core body internal lubrication oil, to improve air-cooled change
The heat exchange efficiency of hot systems improves the reliability of gear-box cooling and lubricating system.
2, the utility model wind power generating set according to wind turbine gearbox heat exchange mechanisms improvement, opened up in engine room cover into
The problems such as air port and air outlet, improve exchange capability of heat, avoid bearing failure caused by gear-box high temperature reduces gear-box event
Barrier rate improves the reliability of complete machine, is finally reached the purpose for ensureing Wind turbines generated energy.
Detailed description of the invention
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand the technology hand of the utility model
Section, below in conjunction with attached drawing, the utility model is described in further detail with specific embodiment.
Fig. 1 is that the utility model wind turbine gearbox heat exchange mechanisms apply structural representation inside wind generating set engine room
Figure.
Fig. 2 is the decomposition texture diagram of heat-exchanging component in the utility model.
Fig. 3 is the structural perspective of heat-exchanging component in the utility model.
Fig. 4 is the schematic illustration of the utility model wind turbine gearbox heat exchange mechanisms.
Wherein: 1, heat-exchanging component;11, heat exchange core body;12, fan dome;13, hot-swappable fans;14, fan motor;2,
Intake stack;3, outlet conduit;4, bracket;5, gear-box;51, oil passage oil inlet pipe;52, oil passage flowline;
6, engine room cover;61, engine room cover air inlet;62, engine room cover air outlet;7, grease pump.
Specific embodiment
The utility model is the improvement carried out to existing air-cooled heat-exchange system, by the stream for changing existing air-cooled heat-exchange system
Body loop structure, to achieve the purpose that improve heat-exchange system heat-sinking capability.Specific embodiment is as follows.
Referring to shown in attached drawing 1 to 3, the present embodiment wind turbine gearbox heat exchange mechanisms are arranged in the cabin of wind power generating set
Portion comprising heat-exchanging component 1 and the air intake passage 2 and air-out passage that are separately connected with the air inlet of heat-exchanging component 1 and air outlet
3。
The heat-exchanging component 1 is arranged outside gear-box 5, is fixed at the upper of gear-box 5 by bracket 4 in the present embodiment
Side.Certainly, it could be secured in other fixation members of engine room inside.
The heat-exchanging component 1 includes heat exchange core body 11 and the heat exchange driving unit connecting with the heat exchange core body 11.The heat exchange core
Contain oil passage in body 11, it is more excellent to use coil arrangement.The oil passage recycles the gear being pumped by grease pump 7
Lubricating oil in case 5.In attached drawing 1, grease pump 7, which is realized, passes through oil passage oil inlet pipe for the lubricating oil in gear-box 5
51 are pumped into the oil passage in heat exchange core body 11, return after oil passage radiates further through oil passage flowline 52
It flow in gear-box 5, reaches recycling for lubricating oil.The heat exchange driving unit is distinguished and admirable to heat exchange power for providing, will
The air inlet of air intake passage 2 is discharged after heat exchange core body 11 from air-out passage 3, realizes to lubricating oil heat in oil passage
Export, reaches the heat dissipation purpose to lubricating oil in gear-box.
The heat exchange driving unit includes hot-swappable fans 13 and fan motor 14 in the present embodiment, and is arranged in hot-swappable fans
13 and fan motor 14 outside fan dome 12.The fan motor 14 drives hot-swappable fans 13 to rotate, and realizes that the air inlet is logical
The air inlet in road 2 is discharged after passing through the heat exchange core body 11 from the air-out passage 3.
Specifically, the inlet side of the fan dome 12 is arranged in the heat exchange core body 11.
The air intake of the air intake passage 2 is connected to by engine room cover air inlet 61 with nacelle exterior in the present embodiment, the outlet air
The outlet air end in channel 3 is used to be connected to by engine room cover air outlet 62 with nacelle exterior.Design just changes existing air-cooled change in this way
Existing engine room inside gas varying cyclically is the gas circulation for introducing nacelle exterior gas by the fluid circuit structure of hot systems,
Achieve the purpose that improve heat-exchange system heat-sinking capability using the low advantage of nacelle exterior gas temperature.
Specifically, flexible ventilation duct can be used in the air intake passage 2, air-out passage 3, rigidity ventilation shaft can also be used.
And engine room cover air inlet 61 and engine room cover air outlet 62 can be arranged in the phase of engine room cover according to the layout of engine room inside structure
To on side, it can also be arranged at the bottom of engine room cover, achieve the purpose that introduce nacelle exterior gas.
Referring to shown in attached drawing 4, the working principle of the utility model wind turbine gearbox heat exchange mechanisms is: being changed using forced convertion
Pyrogen reason realizes the cooling of lubricating oil.Also according to the calculation formula (1) of exchange capability of heat Q:
Q=F α (T1-T2) (1)
Wherein, T1 is lubricating oil temperature, and F is heat exchange area, α is the coefficient of heat transfer, is determined in heat exchanger and motor model
In the case where, lubricating oil temperature T1, heat exchange area F and coefficient of heat transfer α are definite value, then exchange capability of heat Q is dependent on heat exchanger
The air themperature T2 of entrance side.
Existing gear-box air cooling heat exchanger entrance side is connected to engine room inside, and heat exchanger entrance side air themperature T2 is machine
Temperature inside cabin, and in cabin temperature generally than cabin outside air themperature be higher by 5~10 DEG C or so, so being unfavorable for moistening
The heat dissipation of lubricating oil.The improvement of the utility model is to change the air inlet position of heat-exchange system in the prior art, by air inlet machine
It is changed to outside cabin in cabin, and thus the engine room cover of the gear-box heat exchange mechanisms and wind power generating set is improved, thus
The air themperature T2 of air cooling heat exchanger entrance side is reduced, to improve the exchange capability of heat Q of heat exchanger.
The utility model wind turbine gearbox heat exchange mechanisms belong to the water cooling system of complete outer circulation type, by cabin
Outer cold air heat exchange core body flowing, by the heat derives of heat exchange core body internal lubrication oil, to improve air-cooled heat-exchange system
Heat exchange efficiency improves the reliability of gear-box cooling and lubricating system.
The utility model wind turbine gearbox heat exchange mechanisms promote heat-energy transducer under the premise of not changing existing hot-swappable fans
Power, reduces gearbox fault rate, improves the reliability of complete machine the problems such as avoiding bearing failure caused by gear-box high temperature,
It is finally reached the purpose for ensureing Wind turbines generated energy.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
It falls within the protection scope of the present utility model.
Claims (10)
1. a kind of wind turbine gearbox heat exchange mechanisms, which is characterized in that including heat-exchanging component and with the air inlet of heat-exchanging component and out
The air intake passage and air-out passage that air port is separately connected,
The heat-exchanging component is arranged outside gear-box comprising the heat exchange core body containing oil passage and with the heat exchange core
The heat exchange driving unit of body connection, the oil passage are used to recycle the lubricating oil being pumped into gear-box by grease pump;
The air intake of the air intake passage is used to be connected to by engine room cover air inlet with nacelle exterior, the outlet air of the air-out passage
End by engine room cover air outlet with nacelle exterior for being connected to.
2. wind turbine gearbox heat exchange mechanisms according to claim 1, which is characterized in that the heat exchange driving unit includes changing
Hot-air fan, fan motor and the fan dome being arranged in outside hot-swappable fans and fan motor, the fan motor band are moved
Hot-air fan rotation realizes the air inlet of the air intake passage by being discharged after the heat exchange core body from the air-out passage.
3. wind turbine gearbox heat exchange mechanisms according to claim 2, which is characterized in that the heat exchange core body is arranged described
The inlet side of fan dome.
4. wind turbine gearbox heat exchange mechanisms according to claim 1, which is characterized in that the heat-exchanging component is set up by branch
It sets in the top of gear-box.
5. wind turbine gearbox heat exchange mechanisms according to claim 1, which is characterized in that the air intake passage and/or outlet air
Channel is all made of flexible ventilation duct.
6. wind turbine gearbox heat exchange mechanisms according to claim 1, which is characterized in that the air intake passage and/or outlet air
Channel is all made of rigidity ventilation shaft.
7. wind turbine gearbox heat exchange mechanisms according to claim 1, which is characterized in that the oil passage uses coil pipe
Structure.
8. a kind of wind power generating set using the described in any item wind turbine gearbox heat exchange mechanisms of the claims 1 to 7,
It is characterized in that, the heat-exchanging component is arranged in the gear-box periphery in the wind generating set engine room, in the heat exchange core body
Oil passage the lubricating oil that is pumped into the gear-box is recycled by grease pump, the air intake of the air intake passage passes through
Engine room cover air inlet is connected to nacelle exterior, and the outlet air end of the air-out passage is connected by engine room cover air outlet and nacelle exterior
It is logical.
9. wind power generating set according to claim 8, which is characterized in that the engine room cover air inlet and engine room cover outlet air
Mouth is oppositely arranged on the side of the engine room cover respectively.
10. wind power generating set according to claim 8, which is characterized in that the engine room cover air inlet and engine room cover go out
Air port is arranged at the bottom of the engine room cover.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108612632A (en) * | 2018-07-05 | 2018-10-02 | 国电联合动力技术有限公司 | Wind turbine gearbox heat exchange mechanisms and wind power generating set containing the mechanism |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN108612632A (en) * | 2018-07-05 | 2018-10-02 | 国电联合动力技术有限公司 | Wind turbine gearbox heat exchange mechanisms and wind power generating set containing the mechanism |
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