CN106640554B - Heat dissipation system and heat dissipation method for wind generating set and wind generating set - Google Patents
Heat dissipation system and heat dissipation method for wind generating set and wind generating set Download PDFInfo
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- CN106640554B CN106640554B CN201611141780.7A CN201611141780A CN106640554B CN 106640554 B CN106640554 B CN 106640554B CN 201611141780 A CN201611141780 A CN 201611141780A CN 106640554 B CN106640554 B CN 106640554B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000017525 heat dissipation Effects 0.000 title abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 51
- 238000004804 winding Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000010792 warming Methods 0.000 claims description 16
- 230000001172 regenerating effect Effects 0.000 claims description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 239000003570 air Substances 0.000 description 77
- 230000006870 function Effects 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 7
- 241000239290 Araneae Species 0.000 description 4
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- 230000008859 change Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
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- 230000005611 electricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/20—Heat transfer, e.g. cooling
- F05B2260/232—Heat transfer, e.g. cooling characterised by the cooling medium
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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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- Wind Motors (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to the field of cooling, in particular to a heat dissipation system and a heat dissipation method of a wind generating set and the wind generating set. This cooling system includes: the air inlet part is arranged on the outer wall of the air guide sleeve; the fan is installed in air inlet portion, and air inlet portion is in the place ahead of wheel hub. The heat dissipation method utilizes a heat dissipation system, and the wind generating set comprises the heat dissipation system. The technical fan winds air outside the wind generating set into the air inlet part, positive pressure airflow is formed in the air inlet part and flows into the flow guide cover, and the positive pressure airflow is divided by the flow guide cover and the hub to cool an upper winding of an engine stator and an upper magnetic steel of a rotor, a lower winding of the stator and a lower magnetic steel of the rotor, an engine bearing and a base respectively. Therefore, all parts in the unit are cooled through positive pressure introduction of air flow and flow division in the unit, and the cooling efficiency and effect are improved.
Description
Technical field
The present invention relates to cooling fields, more particularly to wind power generating set cooling system, heat dissipating method and wind-power electricity generation
Unit.
Background technique
Wind-driven generator is to convert wind energy into mechanical work, and mechanical work drives rotor rotation, the electricity of final output alternating current
Power equipment.Wind power generating set in the process of running, internal component, such as generator, electrical component and power device etc., meeting
More heat is generated, temperature is higher in cabin, needs to radiate in time.
A variety of researchs and trial have been done to heat dissipation problem in this field at present, some researchers are arranged in cabin and tower top
Air heat exchanger achievees the purpose that air in cooling cabin by carrying out heat exchange with cool ambient air.This method does not consider
The problem of radiating to the heat generating components in wheel hub on head.Also some researchers match in inner and outer be provided with of cabin
The cooling compressor of evaporation, evaporator and the cooling combined heat exchanger of liquid cooling-evaporation carry out cooled electric generator, but the cooling system without
Method cools down wind generator unit wheel hub internal heat generation component.In short, existing heat sink conception all exists inside partial engine unit
The problem of distribution thermal part is unable to get effective heat dissipation.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide wind power generating set cooling system, heat dissipating method and wind power generating sets, to solve
The effective heat dissipation problem of each heat generating components in wind power generating set.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of wind power generating set cooling systems comprising: blower,
The more than one inlet section being set on water conservancy diversion cover outer wall and the outlet section for being set to engine room cover tail portion；The assembling in
The inlet section, the inlet section are in the front of wheel hub.
In some embodiments, preferably, wind power generating set cooling system further includes temperature sensor, and the temperature passes
Sensor is set in engine room cover, and the temperature sensor is connect with controller.
In some embodiments, preferably, wind power generating set cooling system further include: wind scooper, the wind-guiding are provide with
It is placed in the outlet section of the engine room cover.
In some embodiments, preferably, the wind scooper and the engine room cover are hinged.
In some embodiments, preferably, the setting adjusting wind scooper is opened between the wind scooper and the engine room cover
Degree is telescopically connected to bar, and the bar that is telescopically connected to is connect with controller.
In some embodiments, preferably, wind power generating set cooling system further includes regenerative structure, the regenerative structure
It is wrapped in the outer wall of tower and the engine room cover.
In some embodiments, preferably, the regenerative structure includes the solar absorbing layer set gradually from the outside to the core
And recuperation layer.
In some embodiments, preferably, the blower and controller are wirelessly connected.
In some embodiments, preferably, the blower includes: centrifugal blower.
In some embodiments, preferably, the inlet section be set to the pod front and/or top and/or
Lower part.
In some embodiments, preferably, the inlet section includes: blower support cover, is fixed on outside the pod
On wall, and connect the blower；The internal blower support cover is air intake passage, and one end of the air intake passage is air inlet,
It is connected to inside the other end and pod.
In some embodiments, preferably, the air inlet is opened to the rear portion of the engine room cover.
In some embodiments, preferably, the assembling is in the air inlet of blower support cover.
The present invention also provides the heat dissipating methods of the wind power generating set cooling system described in one kind comprising:
Outside air is imported in pod from the inlet section on water conservancy diversion cover outer wall；
The air for entering pod is divided into two-way, first via air is flowed from hub nose through-hole into engine room cover, the
Two road air flow into the space of pod inner wall and hub outer wall, into motor stator on winding and rotor upper magnetic steel institute it is in place
It sets, and is discharged from the air gap of engine room cover side；
After the first via air is introduced wheel hub, and it is classified as two-way, inner sidewall of the first branch along the wheel hub
Flowing, into motor stator on winding and rotor upper magnetic steel position, and from the air gap of engine room cover side be discharged；Second branch
Across engine bearing and pedestal, it is discharged from the outlet section of engine room cover tail portion.
In some embodiments, preferably, the heat dissipating method further include: by the gas outside tower from tower lower part
Into in tower, and tower extraneous gas is guided to move up inside tower, after passing through tower inner assembly, from engine room cover tail portion
Outlet section discharge.
In some embodiments, preferably, outside air is imported into water conservancy diversion from the inlet section on water conservancy diversion cover outer wall described
Before in cover, the heat dissipating method further include:
Detect temperature T in cabin；
The revolving speed of blower is controlled according to temperature T in the cabin；
The wind scooper aperture of the outlet section wind scooper of engine room cover tail portion is controlled according to temperature T in the cabin.
In some embodiments, preferably, the revolving speed for controlling blower according to temperature T in the cabin includes:
When for temperature T during from T1 is warming up to for 0 DEG C, the revolving speed of the blower is N1 in cabin；
During temperature T is warming up to T2 from T1 in cabin, the revolving speed of the blower is N2, N2 >=N1；
During temperature T is cooled to T3 from T2 in cabin, the revolving speed of the blower is N2, T3 < T1；
During temperature T is cooled to T4 from T3 in cabin, the revolving speed of the blower is N1.
As temperature T < T4 in cabin, blower is out of service.
In some embodiments, preferably, the outlet section for controlling engine room cover tail portion according to temperature T in the cabin is led
The wind scooper aperture of fan housing includes:
When for temperature T during being warming up to T1 from zero degree, the wind scooper aperture is 0 ° in cabin；
During temperature T is warming up to T2 from T1 in cabin, the function of the wind scooper aperture is
During temperature T is cooled to T3 from T2 in cabin, the wind scooper aperture is 180 °, T3 < T1；
During temperature T is cooled to T4 from T3 in cabin, the function of the wind scooper aperture is
As temperature T < T4 in cabin, the wind scooper aperture is 0 °.
The present invention also provides a kind of wind power generating sets comprising the wind power generating set cooling system.
(3) beneficial effect
Inlet section is arranged in the outer wall of pod in technical solution provided by the invention, and inlet section is in the front of wheel hub,
Air outside wind power generating set is involved in inlet section by blower, forms positive pressure gas flow in inlet section, and positive pressure gas flow is to water conservancy diversion
Flowing in cover, by the drainage of pod and wheel hub, fraction flows in the space between pod inner wall and hub outer wall
It is dynamic, winding and rotor lower magnetic steel position under winding and rotor upper magnetic steel position and stator are reached on motor stator,
It is discharged after cooling down to it from the air gap of engine room cover side, fraction flows backward from the through-hole continuation of hub nose, into wheel hub
Afterwards, it and shunts, one of branch is flowed along the medial surface of wheel hub, leads winding and rotor upper magnetic steel place on motor stator
Winding and rotor lower magnetic steel position under position and stator are discharged after cooling down to it from the air gap of engine room cover side；Another
Branch passes through engine bearing and pedestal, is discharged from the outlet section of engine room cover tail portion.In this way, the positive pressure by air-flow imports, and
Shunting in unit cools down to component each in unit, improves the efficiency and effect of cooling.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wind power generating set cooling system in one embodiment of the invention；
Fig. 2 is the curve synoptic diagram of temperature change and revolving speed in one embodiment of the invention；
Fig. 3 is the curve synoptic diagram of temperature change and wind scooper aperture in one embodiment of the invention.
In figure:
1, tower；
2, regenerative structure；
3, wind scooper；
4, engine room cover；
5, bearing；
6, generator；
7, wheel hub；
8, centrifugal blower；
9, blower support cover；
10, pod；
11, air gap.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " first " " the
Two " " third " " four " are the numbers in order to clearly illustrate product component progress, do not represent any essential distinction." preceding " " rear "
Routine of being subject to recognizes product structure.Such as: before pod direction is, after engine room cover direction is."upper"
Direction shown in attached drawing is subject in "lower"." installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixed connect
It connects, may be a detachable connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be direct phase
Even, the connection inside two elements can also be can be indirectly connected through an intermediary.For the ordinary skill people of this field
For member, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The problem of distribution thermal part is unable to get effective heat dissipation in the middle part of wind power generating set in the prior art, this technology mentions
Wind power generating set cooling system, heat dissipating method and wind power generating set are supplied.
Product, method etc. will be described in detail by basic engineering, extension design and alternative design below.
A kind of wind power generating set cooling system, as shown in Figure 1, comprising: blower, being set on 10 outer wall of pod
More than one inlet section and the outlet section for being set to 4 tail portion of engine room cover；Assembling is in wheel hub 7 in inlet section, inlet section
Front.
In order to carry out effective temperature-reducing to 6 internal heat generation component of generator, the present embodiment opens up new air inlet on pod 10
Portion, such as: the front end of pod 10, pod 10 side wall (upper side wall, lower wall, left side wall, right side wall etc.).No matter at which
A orientation is in the front of wheel hub 7 based on inlet section, after air enters pod 10, can pass through wheel hub 7 and pod 10
Positional relationship shunted, water conservancy diversion, the air into pod 10 is divided into two-way, and first via air is from 7 front end through-hole of wheel hub
It is flowed into engine room cover 4, the second road air flows into the space of 10 inner wall of pod and 7 outer wall of wheel hub, on motor stator
Winding and rotor upper magnetic steel position, and be discharged from the air gap 11 of 4 side of engine room cover；After first via air introduces wheel hub 7, and will
It is divided into two-way, and the first branch is flowed along the inner sidewall of wheel hub 7, into motor stator on winding and rotor upper magnetic steel institute it is in place
It sets, and is discharged from the air gap 11 of 4 side of engine room cover；Second branch passes through the bearing 5 and pedestal of engine, from 4 tail portion of engine room cover
Outlet section discharge.In this way, carrying out cooling processing to each heat generating components, cooling effect is more preferably effective.
Wherein, 4 one side of engine room cover is used to support engine room inside sub-unit, on the other hand for protecting the component in cabin
With personnel not by the wind, the infringement of the external environmental factors such as rain, snow, salt fog, ultraviolet radiation.
Blower is set to inlet section, can push directly on gas and enter in pod 10, to subsequent air pod 10,
The shunting of wheel hub 7 forms positive impetus, and barotropic gas is promoted to flow into each space.In the prior art, usually in outlet air
Blower is arranged in portion, causes in engine room cover 4 for negative pressure state, air-flow essentially straight flowing in generator 6, strong negative pressure work
It is flowed with other spaces (such as space between 7 outer wall of 10 inner wall of pod and wheel hub) of lower no normal direction, then it can not be to engine
The dependency structure progress effective temperature-reducing of stator, rotor.
In addition, multiple Uniform Flows based on air-flow in wind-driven generator 6 can be set in inlet section, preferably provide more
A inlet section is uniformly distributed on perpendicular to the axial loop wire of pod 10.It certainly, can be respectively in water conservancy diversion in some embodiments
Cover the symmetric position setting inlet section of 10 left side walls, right side wall.It can also be in 10 upper side wall of pod, the symmetric position of lower wall
Inlet section is set.
In some embodiments, blower can be centrifugal blower 8 or aerofoil fan, preferably centrifugal blower 8.Because of centrifugal blower
8 active force is larger, and characteristic curve is strong, copes with the larger situation of air quantity, can resist the resistance of powerful air quantity.And giving wind
While power generator group provides cooling air, but also radiating mode complicated in generator 6 and cabin becomes simply, thus
Also reduce the failure rate of cooling system.
Usual blower passes through slip ring (rotary body connection, the electric component for conveying the energy and signal) and control in the prior art
Device connection, in long-term work, slip ring running contact is more, and slip ring is prone to wear, and causes signal fault or loss.In order to solve this
Problem, blower and controller are wirelessly connected in the present embodiment, such as bluetooth connection, radio frequency connection etc..Pass through wireless transmission
Signal saves signal wire and is transmitted by slip ring, improves the reliability and stability of signal transmission.
In addition, needing different heat dissipation effects for the temperature change in generator 6 (in engine room cover 4).Effective harvester
Temperature value in hatch cover 4 can carry out the rotation speed regulating and controlling of blower by the temperature value.Therefore, this cooling system is arranged in engine room cover 4
Temperature sensor, temperature sensor are connect with controller, acquire temperature value in engine room cover 4 in real time, and be transmitted to controller, by
Controller is controlled accordingly.
For example, as shown in Fig. 2, in some embodiments,
When for temperature T during from T1 is warming up to for 0 DEG C, the revolving speed of blower is N1 in cabin；
During temperature T is warming up to T2 from T1 in cabin, the revolving speed of blower is N2, N2 >=N1；
During temperature T is cooled to T3 from T2 in cabin, the revolving speed of blower is N2, T3 < T1；
During temperature T is cooled to T4 from T3 in cabin, the revolving speed of blower is N1.
As temperature T < T4 in cabin, blower is out of service.
As for the value of N1, N2, T1, T2, T3, T4, this field can be set as the case may be.The present embodiment only provides
A kind of idea and method according to temperature adjustment rotation speed of fan in cabin.
It is provided with wind scooper 3 in the outlet section of engine room cover 4 in some embodiments, realizes wind-guiding effect.Solve extreme gas
Under time, the high heat assembled in cabin can radiate away rapidly, not will cause cabin internal heat generation component instantaneous temperature it is excessively high and
Influence reliability and service life.
On the other hand, in order to cooperate different heat dissipation effects, the present embodiment also effectively set to 3 aperture of wind scooper
Meter, wind scooper 3 and engine room cover 4 are hinged.When needing relatively strong heat dissipation, 3 aperture of wind scooper increases, the heat dissipation air quickly flowed
Wind scooper 3 can be blown and increase aperture, increase the outlet of heat dissipation air, reduce discharge resistance, when needing low heat emission, wind-guiding
The reduction of 3 apertures is covered, is even switched off, the velocity of discharge of heat dissipation air is weakened.
In order to control effectively to 3 aperture of wind scooper, setting adjusts 3 aperture of wind scooper between wind scooper 3 and engine room cover 4
Be telescopically connected to bar, be telescopically connected to bar and connect with controller.Realization is opened according to temperature value intelligent control wind scooper 3 in engine room cover 4
Degree.The wind scooper 3 of intelligence can be according to the case where temperature, automatically turning on and being adjustable aperture in cabin, so that temperature is protected in cabin
Hold the temperature levels in certain safety.Being telescopically connected to bar can be driven by hydraulic or electric power.
For example, as shown in figure 3, in some embodiments:
When for temperature T during being warming up to T1 from zero degree, 3 aperture of wind scooper is 0 ° in cabin；
During temperature T is warming up to T2 from T1 in cabin, the function of 3 aperture of wind scooper is
During temperature T is cooled to T3 from T2 in cabin, 3 aperture of wind scooper is 180 °, T3 < T1；
During temperature T is cooled to T4 from T3 in cabin, the function of 3 aperture of wind scooper is
As temperature T < T4 in cabin, the wind scooper aperture is 0 °.
In other cases, the outer wall of tower 1 and engine room cover 4 is wrapped up into regenerative structure 2, regenerative structure 2 uses low boiling point
Liquid.When shining upon, for absorbing solar energy, solar energy is stored as by thermal energy by phase transformation, the sun is avoided to shine
Penetrate tower 1, engine room cover 4, to reduce 4 internal heat generation component of engine room cover, in tower 1 electric-control cabinet body, cable etc. temperature.Solve unit
On daytime in summer because solar radiation causes temperature in unit excessively high, in the too low unit of evening temperature the problem of condensation, also solve
Unit is too low in winter temperature, and Wind turbines cannot start, it is also necessary to start heater to unit heat waste of energy etc.
Problem.By taking tower 1 as an example, specifically, in the case where it is cold, regenerative structure 2 discharges heat, heats, mentions to tower 1
The temperature such as electric-control cabinet body, cable in high tower 1 are ensured and are run well.For this purpose, in some embodiments, regenerative structure 2 includes certainly
The solar absorbing layer and recuperation layer set gradually outside to inside.Have the function that heat-insulated storage heat and release heat, reduces
The consumption of unit energy.
Based on the design in above-mentioned various embodiments, the inlet section in basic engineering is specifically described below.Air inlet
Portion includes: blower support cover 9, is fixed on 10 outer wall of pod, and connect blower, blower is fixed on wind by fan supporter
On machine support cover 9, blower support cover 9 is fixed by bolts on 10 outer wall of pod.9 inside of blower support cover are logical for air inlet
Road, one end of air intake passage are air inlet, are connected to inside the other end and pod 10.In particular, assembling is in blower support cover 9
Air inlet in, by outside air be involved in blower support cover 9 in, and by blower support cover 9 protection, avoid external object
Impact.
In order to reduce the resistance of air flowing as far as possible, formed when air enters pod 10 by blower support cover 9
Smaller vortex facilitates subsequent shunting, and the cover wall of blower support cover 9 is in streamline arc, and inner wall is as smooth as possible.
Furthermore, it is contemplated that be open facing the wind if air inlet is opened forward, once wind increases, be easy to cause blower to reverse,
It burns, even if in the case that wind-force is small, also will increase airborne load.Therefore, air inlet is opened to the rear portion of engine room cover 4, is passed through
Outside air is involved in blower support cover 9 by blower, and then positive pressure gas flow flows directly into pod 10, and shunts.
It is mainly that outside air enters wind-power electricity generation using the method that above-mentioned wind power generating set cooling system radiates
The cooling system control method of flow direction and wind power generating set after unit, specifically includes:
Outside air is imported in pod 10 from the inlet section on 10 outer wall of pod；
The air for entering pod 10 is divided into two-way, first via air is flowed from 7 front end through-hole of wheel hub into engine room cover 4
Dynamic, the second road air flows into the space of 10 inner wall of pod and 7 outer wall of wheel hub, into motor stator on magnetic on winding and rotor
Steel position, and be discharged from the air gap of 4 side of engine room cover；
After first via air is introduced wheel hub 7, and it being classified as two-way, the first branch is flowed along the inner sidewall of wheel hub 7, into
Enter winding and rotor upper magnetic steel position on motor stator, and is discharged from the air gap of 4 side of engine room cover；Second branch passes through hair
Motivation bearing 5 and pedestal are discharged from the outlet section of 4 tail portion of engine room cover.
In radiating to 1 inner cabinet of tower and cable and cabin internal heat generation component, one side regenerative structure 2 absorbs outer
Portion's solar energy, accumulation of heat avoid solar energy irradiation tower 1 and engine room cover 4, promote cabinet body and cable and other heat generating components temperature liters
Height is exactly a kind of cooling in the case where not heating up.In another aspect tower 1, when temperature is lower in engine room cover 4, regenerative structure 2 is put
Heat heats tower 1, improves cabinet body and cable and other heat generating components temperature, promotes to work normally.
In addition, still air inlet is arranged from the lower part of tower 1, by tower 1 in very high situation in the problem of cabinet body and cable
External gas enters in tower 1 from 1 lower part of tower, and 1 extraneous gas of tower is guided to move up inside tower 1, passes through
After 1 inner assembly of tower, it is discharged from the outlet section of 4 tail portion of engine room cover.Gas outside tower 1 can be to flowing through in flow process
Heat generating components cool down.
Moreover, before outside air is imported in pod from the inlet section on water conservancy diversion cover outer wall, further includes:
Detect temperature T in cabin；
The revolving speed of blower is controlled according to temperature T in cabin；
The wind scooper aperture of the outlet section wind scooper of engine room cover tail portion is controlled according to temperature T in cabin.
Wherein, include: according to the revolving speed that temperature T in cabin controls blower
When for temperature T during from T1 is warming up to for 0 DEG C, the revolving speed of blower is N1 in cabin；
During temperature T is warming up to T2 from T1 in cabin, the revolving speed of blower is N2, N2 >=N1；
During temperature T is cooled to T3 from T2 in cabin, the revolving speed of blower is N2, T3 < T1；
During temperature T is cooled to T4 from T3 in cabin, the revolving speed of blower is N1；
As temperature T < T4 in cabin, blower is out of service.
Wherein, include: according to the wind scooper aperture of the outlet section wind scooper of temperature T control engine room cover tail portion in cabin
When for temperature T during being warming up to T1 from zero degree, wind scooper aperture is 0 ° in cabin；
During temperature T is warming up to T2 from T1 in cabin, the function of wind scooper aperture is
During temperature T is cooled to T3 from T2 in cabin, wind scooper aperture is 180 °, T3 < T1；
During temperature T is cooled to T4 from T3 in cabin, the function of wind scooper aperture is
As temperature T < T4 in cabin, the wind scooper aperture is 0 °.
In conjunction with the specific implementation process of the wind power generating set cooling system of Fig. 1 are as follows:
1, when air themperature is lower in cabin (T < T1), control system sends instructions to centrifugal blower 8, and centrifugal blower 8 is with low
The cooling air in the external world is squeezed into blower support cover 9, forms positive pressure in blower support cover 9, air is in positive pressure by revolving speed (N1) rotation
It is lower to enter pod 10.
2, the cold air of positive pressure is divided into two-way in pod 10, and (being marked in figure with [1]) passes through pod 10 and wheel all the way
Space between hub 7, then entered in the air gap 11 of generator 6 by the hole on 6 rotor field spider of generator, cooled electric generator 6
Winding on rotor magnetic steel and stator.In addition (being marked in figure with [2]) enters wheel hub 7 all the way, two-way is separated into, all the way (in figure
Marked with [2-1]) entered in generator 6 by the hole on the rotor field spider of generator 6, wind enters stator after passing through rotor field spider
Air duct Radial Flow on bracket enters air gap 11, to reach the mesh of winding and rotor upper magnetic steel on 6 stator of cooled electric generator
, in addition (being marked in figure with [2-2]) all the way in wheel hub 7 is then flowed backward, enters pedestal by shaft hole, reaches cooling hair
The purpose of possible automatically controlled component in 6 bearing of motor and pedestal reaches cooling cabin internal heat generation component subsequently into cabin
The air being heated is discharged to the external world finally by the wind scooper 3 of cabin tail portion by purpose.
3, when air themperature is higher in cabin (T >=T1), control system sends instructions to centrifugal blower 8, and centrifugal blower 8 is with height
Revolving speed (N2) rotation, a large amount of cool ambient air are driven into blower support cover 9, and blower support cover 9 forms biggish positive pressure, air
Enter pod 10 in biggish direct draught, there is a large amount of air to enter the air gap 11 of generator 6 in such pod 10, thus
Accelerate winding on 6 rotor upper magnetic steel of cooled electric generator and stator.A part of wind air enters wheel hub 7, by rotor field spider and determines
Winding on main 6 stator of cooled electric generator in hole on submounts is led to by the warmed-up air of winding on rotor upper magnetic steel and stator
The gap for crossing 6 cabin side of generator is discharged to the external world.At this moment the wind scooper 3 of cabin tail portion is opened also under the control of master control system
Come reduce air flowing resistance, thus accelerate in pedestal and cabin air flowing, to accelerate 6 axis of generator
Hold, in pedestal automatically controlled component and cabin internal heat generation component that may be present purpose.
4, when in cabin temperature reach capacity running temperature T2 when, in order to protect the component in unit not due to extreme temperature
It breaks down, Wind turbines are out of service, and centrifugal blower 8 is still rotated up temperature in cabin with high speed N2 and drops to T3.
5, when in cabin air themperature reduce (T < T3), master control sends instructions to centrifugal blower 8, and centrifugal blower will drop to
Low-speed running.
When air themperature drops to relatively low in cabin (T < T4), master control sends instructions to centrifugal blower 8, and centrifugal blower will
Out of service while master control system also sends instructions to the wind scooper 3 of cabin tail portion so that wind scooper is closed.
6, will be past to rise under the action of stack effect by cable or the warmed-up air of other heat generating components in tower,
Into pedestal and cabin, it is discharged to nacelle exterior also by the wind scooper 3 of cabin tail portion, but also the heat generating components in tower 1 obtains
Effective cooling is arrived.
7, the hold over system 2 installed outside nacelle exterior and tower 1 can be effective heat-insulated, so that in cabin and tower 1
From the radiant heat of the sun, so as to avoid the sun to the effect heated in cabin and tower 1, and the radiant heat of the sun can be stored up
It stores away.When air themperature is very low in cabin (T < T4), the hold over system 2 outside nacelle exterior and tower 1 stores up the inside
The heat deposited is discharged into cabin and tower 1 so that in cabin and tower 1 automatically controlled component in reasonable running temperature, thus
Reduce because temperature is too low in cabin and tower 1 need heater to heat due to waste the purpose of electric energy.
In order to more fully be protected to technology, the present embodiment, which additionally provides to radiate including above-mentioned wind power generating set, is
The wind power generating set of system.
The advantages of embodiment of the present invention are as follows:
1, by having achieved the effect that cooling air can be provided into unit in the intelligent centrifugal blower of pod installation,
The technical effect of the cooling system of complicated generator and Wind turbines complexity is eliminated again；
2, by using intelligent centrifugal blower, reached and saved the technical effect that signal wire is transmitted by slip ring, reduced
The failure rate of slip ring, so that signal transmission is more reliable and stablizes；
3, hold over system is designed by cabin cover outer surface and tower outer surface, had both been avoided that in cabin and tower and has avoided too
The heat of sun radiation, while can absorb the heat of solar radiation, also can discharge thermal energy function when temperature is lower in cabin and tower, reach
Having arrived can heat-insulated but also heat accumulation while can also exothermic effect；
4, by devising temperature sensor in nacelle top and cabin tail portion devises intelligent wind scooper, having reached can root
The technical effect of the aperture of wind scooper is automatically turned on according to temperature in cabin.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (18)
1. a kind of wind power generating set cooling system characterized by comprising blower is set on pod (10) outer wall
More than one inlet section and the outlet section for being set to engine room cover (4) tail portion；The assembling in the inlet section, it is described into
Wind portion is in the front of wheel hub (7)；
Further include: wind scooper (3), the wind scooper (3) are set to the outlet section of the engine room cover (4).
2. wind power generating set cooling system as described in claim 1, which is characterized in that it further include temperature sensor, it is described
Temperature sensor is set in engine room cover (4), and the temperature sensor is connect with controller.
3. wind power generating set cooling system as described in claim 1, which is characterized in that the wind scooper (3) and the machine
Hatch cover (4) is hinged.
4. wind power generating set cooling system as claimed in claim 3, which is characterized in that the wind scooper (3) and the machine
Adjusting wind scooper (3) aperture is arranged between hatch cover (4) is telescopically connected to bar, and the bar that is telescopically connected to is connect with controller.
5. wind power generating set cooling system as described in claim 1, which is characterized in that it further include regenerative structure (2), it is described
Regenerative structure (2) is wrapped in the outer wall of tower (1) and the engine room cover (4).
6. wind power generating set cooling system as claimed in claim 5, which is characterized in that the regenerative structure (2) includes certainly
The solar absorbing layer and recuperation layer set gradually outside to inside.
7. wind power generating set cooling system as described in claim 1, which is characterized in that the blower and controller carry out nothing
Line connection.
8. wind power generating set cooling system as described in claim 1, which is characterized in that the blower includes: centrifugal blower
(8)。
9. wind power generating set cooling system as described in claim 1, which is characterized in that the inlet section is set to described lead
The front and/or top of stream cover (10) and/or lower part.
10. such as the described in any item wind power generating set cooling systems of claim 1-9, which is characterized in that the inlet section packet
Include: blower support cover (9) is fixed on the pod (10) outer wall, and connects the blower；The blower support cover
(9) internal is air intake passage, and one end of the air intake passage is air inlet, is connected to inside the other end and pod (10).
11. wind power generating set cooling system as claimed in claim 10, which is characterized in that the air inlet is opened to the machine
The rear portion of hatch cover (4).
12. wind power generating set cooling system as claimed in claim 10, which is characterized in that the assembling is in the wind
In the air inlet of machine support cover (9).
13. a kind of heat dissipating method of the described in any item wind power generating set cooling systems of claim 1-12, which is characterized in that
Include:
Outside air is imported in pod from the inlet section on water conservancy diversion cover outer wall；
The air for entering pod is divided into two-way, first via air is flowed from hub nose through-hole into engine room cover, the second tunnel
Air flow into pod inner wall and hub outer wall space, into motor stator on winding and rotor upper magnetic steel position,
And it is discharged from the air gap of engine room cover side；
After the first via air is introduced wheel hub, and it being classified as two-way, the first branch is flowed along the inner sidewall of the wheel hub,
Winding and rotor upper magnetic steel position on into motor stator, and be discharged from the air gap of engine room cover side；Second branch passes through
Engine bearing and pedestal are discharged from the outlet section of engine room cover tail portion.
14. heat dissipating method as claimed in claim 13, which is characterized in that further include: by the gas outside tower under tower
Portion enters in tower, and tower extraneous gas is guided to move up inside tower, after passing through tower inner assembly, from engine room cover tail
The outlet section in portion is discharged.
15. heat dissipating method as claimed in claim 13, which is characterized in that it is described by outside air from water conservancy diversion cover outer wall
Before inlet section imports in pod, further includes:
Detect temperature T in cabin；
The revolving speed of blower is controlled according to temperature T in the cabin；
The wind scooper aperture of the outlet section wind scooper of engine room cover tail portion is controlled according to temperature T in the cabin.
16. heat dissipating method as claimed in claim 15, which is characterized in that described to control blower according to temperature T in the cabin
Revolving speed include:
When for temperature T during from T1 is warming up to for 0 DEG C, the revolving speed of the blower is N1 in cabin；
During temperature T is warming up to T2 from T1 in cabin, the revolving speed of the blower is N2, N2 >=N1；
During temperature T is cooled to T3 from T2 in cabin, the revolving speed of the blower is N2, T3 < T1；
During temperature T is cooled to T4 from T3 in cabin, the revolving speed of the blower is N1；
As temperature T < T4 in cabin, blower is out of service.
17. heat dissipating method as claimed in claim 15, which is characterized in that
The wind scooper aperture of outlet section wind scooper for controlling engine room cover tail portion according to temperature T in the cabin includes:
When for temperature T during being warming up to T1 from zero degree, the wind scooper aperture is 0 ° in cabin；
During temperature T is warming up to T2 from T1 in cabin, the function of the wind scooper aperture is
During temperature T is cooled to T3 from T2 in cabin, the wind scooper aperture is 180 °, T3 < T1；
During temperature T is cooled to T4 from T3 in cabin, the function of the wind scooper aperture is
As temperature T < T4 in cabin, the wind scooper aperture is 0 °.
18. a kind of wind power generating set, which is characterized in that dissipated including the described in any item wind power generating sets of claim 1-12
Hot systems.
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| CN201611141780.7A CN106640554B (en) | 2016-12-12 | 2016-12-12 | Heat dissipation system and heat dissipation method for wind generating set and wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141780.7A CN106640554B (en) | 2016-12-12 | 2016-12-12 | Heat dissipation system and heat dissipation method for wind generating set and wind generating set |
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| CN106640554B true CN106640554B (en) | 2019-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110345012A (en) * | 2019-07-05 | 2019-10-18 | 湖南城市学院 | A kind of wind power plant convenient for heat dissipation |
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