CN205714604U - A kind of Wind turbines and hybrid cooling system thereof - Google Patents
A kind of Wind turbines and hybrid cooling system thereof Download PDFInfo
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- CN205714604U CN205714604U CN201620535621.4U CN201620535621U CN205714604U CN 205714604 U CN205714604 U CN 205714604U CN 201620535621 U CN201620535621 U CN 201620535621U CN 205714604 U CN205714604 U CN 205714604U
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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 turbines and hybrid cooling system thereof, described hybrid cooling system is used for cooling of the heat generating components of Wind turbines, including support, heat exchanger, hot-swappable fans, motor, temperature measuring equipment and controller, on the bracket and position is relative for described heat exchanger and hot-swappable fans installation, described motor connects and drives described hot-swappable fans, described temperature measuring equipment is for measuring the temperature data of described heat generating components, and send described temperature data to described controller, described controller controls the keying of described motor according to the described temperature data received.Hybrid cooling system of the present utility model can meet higher radiating requirements on the premise of not strengthening physical dimension and weight, is ensureing on the normal working foundation of unit simultaneously, is reducing unit from power consumption.
Description
Technical field
This utility model relates to technical field of wind power, particularly relates to a kind of Wind turbines and hybrid cooling system thereof.
Background technology
Along with the continuous growth of Wind turbines single-machine capacity, electromotor, current transformer and the tooth of powerful MW class unit
The heat dissipation capacity of the heat generating components such as roller box is increasing, and for improving heat exchanging efficiency, complete system plant tends to greatly use water-cooling system.
Water-cooling system uses coolant by pipeline, and by the heat exchanger outside the heat band of heat generating components to cabin, coolant is with empty out of my cabin
After gas carries out heat exchange, cryogenic liquid again flows through heat generating components and cools down.The heat exchange of coolant and air out of my cabin divides
For natural heat-exchange and forced heat-exchanging two ways, the former relies on ambient wind and coolant to carry out heat exchange；The latter utilizes fan pair
Ambient wind is accelerated, and makes the air quantity carrying out heat exchange with coolant significantly increase.According to heat exchange principle, forced heat-exchanging
Heat exchange efficiency dramatically increase than natural heat-exchange.
At present, the water-cooling system scheme of powerful megawatt-level wind unit many employings natural heat-exchange, but it is as unit
The increase of capacity, the heat exchanger overall dimensions meeting heat generating components cooling requirements constantly increases with weight, the installation of heat exchanger and
Supporting construction has been bordering on harshness to the requirement of cabin intensity.If but still using the MW class unit of original smaller power
Heat exchanger used, the heat exchange amount under low wind speed then cannot meet radiating requirements.Therefore, both met cabin requirement of strength, accorded with again
The water-cooling system scheme closing the radiating requirements under low wind speed becomes a bottleneck of high-power megawatt-level wind unit development, needs badly
Break through.
Utility model content
The purpose of this utility model is to provide a kind of Wind turbines and hybrid cooling system, described hybrid cooling system
System can meet the higher radiating requirements of Wind turbines on the premise of not strengthening heat exchanger structure size and weight, exists simultaneously
Ensure on the normal working foundation of Wind turbines, reduce unit from power consumption.
For achieving the above object, this utility model adopts the following technical scheme that
A kind of hybrid cooling system of Wind turbines, for the cooling of heat generating components of Wind turbines, including
Frame, heat exchanger, hot-swappable fans, motor, temperature measuring equipment and controller, described heat exchanger and hot-swappable fans are arranged on described support
Going up and position is relative, described motor connects and drives described hot-swappable fans, and described temperature measuring equipment is used for measuring described heat generating components
Temperature data, and to described temperature data is sent described controller, described controller is according to the described temperature number received
According to the keying controlling described motor.
As improving further, described support includes heat exchanger mounting bracket and hot-swappable fans mounting bracket, described in change
Hot device mounting bracket is frame-type support, and the dual-side edge of described frame-type support is respectively equipped with protuberance, and described hot-swappable fans is pacified
Dress support is plate-shaped carrier, and the two ends of described plate-shaped carrier are fixing with described protuberance respectively to be connected.
Described temperature measuring equipment is temperature sensor.
Also include for covering on the barrier outside described hot-swappable fans.
A kind of Wind turbines, including described hybrid cooling system.
Owing to using technique scheme, this utility model at least has the advantage that
For the technical bottleneck of high-power megawatt-level wind unit cooling system design, the mixing involved by this utility model
Formula cooling system technical scheme, can effectively solve the contradiction that heat exchange power is big and cabin intensity is not enough；Simultaneously at high wind
Can reduce under the conditions of speed Wind turbines from power consumption, for increasing the help that power benefit provides certain.
Accompanying drawing explanation
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand technology hands of the present utility model
Section, below in conjunction with accompanying drawing, the utility model is described in further detail with detailed description of the invention.
Fig. 1 is the hybrid cooling system structure schematic diagram of Wind turbines of the present utility model.
Fig. 2 is the air flow schematic diagram of low wind speed and the natural heat-exchange operating mode under high wind speed.
Fig. 3 is the air flow schematic diagram of the forced heat-exchanging under middle wind speed and the mixed flow regime of natural heat-exchange.
Fig. 4 is the comparing result of three kinds of heat exchange modes under different wind friction velocity.
Detailed description of the invention
For current high-power megawatt-level wind unit water cooling system structure dimension and weight with cabin intensity relative deficiency
Contradiction, the utility model proposes the hybrid cooling system of a kind of Wind turbines, the heater block to Wind turbines can be realized
Carry out natural heat-exchange and forced heat-exchanging combination cooling mode.
Refer to shown in Fig. 1, the hybrid cooling system of Wind turbines of the present utility model, mainly include support, heat exchange
Device 2, hot-swappable fans 3, motor 5, temperature measuring equipment (not shown) and controller (not shown).Wherein, described heat exchange
Device 2 and hot-swappable fans 3 are installed on the bracket and position is relative, and described motor 5 connects and drives described hot-swappable fans 3, institute
State temperature measuring equipment for measuring the temperature data of Wind turbines heat generating components, and send described temperature data to described control
Device, described controller controls the keying of described motor 5 according to the described temperature data received, thus controls hot-swappable fans 3
Open and close.
Specifically, as it is shown in figure 1, described support includes heat exchanger mounting bracket 1 and hot-swappable fans mounting bracket 6, described
Heat exchanger mounting bracket 1 is frame-type support, and this support is for being connected with cabin, and heat exchanger 2 is bolt-connected to heat exchanger and props up
On frame 1, heat exchanger 2 be provided with coolant/oil inlet 21, coolant/oil export 22.The dual-side of heat exchanger mounting bracket 1
Being respectively equipped with protuberance on Yan, described hot-swappable fans mounting bracket 6 is plate-shaped carrier, and the two ends of this plate-shaped carrier are respectively with described
Protuberance is bolted to connection.Hot-swappable fans 3 and motor 5 are installed in hot-swappable fans mounting bracket 6 by bolt.Heat exchange
Fan 3 is outside is also covered with barrier 4.Barrier 4 is arranged in hot-swappable fans mounting bracket 6.
Three kinds of operating modes are included: under low wind speed during the actual application of the hybrid cooling system of Wind turbines of the present utility model
Forced heat-exchanging under natural heat-exchange operating mode, middle wind speed and the mixed flow regime of natural heat-exchange, and the natural heat-exchange under high wind speed
Operating mode.Low wind speed and the air flow of the natural heat-exchange operating mode under high wind speed are respectively as in figure 2 it is shown, the pressure under middle wind speed is changed
The air flow of heat and the mixed flow regime of natural heat-exchange as it is shown on figure 3, wherein hollow arrow represent cold air, little filled arrows
Representing the hot-air after natural heat-exchange, big filled arrows represents the hot-air after forced heat-exchanging.
Under the natural heat-exchange operating mode (when heat generating components monitoring temperature is not up to motor 5 startup triggering temperature) of low wind speed, change
Hot-air fan 3 does not starts, and heat generating components fully relies on ambient wind and carries out heat exchange.Coolant/oil flows through heat exchanger 2, with heat exchanger 2
Air around carries out heat exchange.Cold air is passed heat exchanger 2, of absorption heat-exchange device 2 internal coolant/oil by upwind
Divide heat, be converted into hot-air, ambient wind pressure reduction before and after the heat exchanger 2 produced, make hot-air arrange downward wind direction.
The forced heat-exchanging operating mode (when heat generating components monitoring temperature reaches more than motor 5 startup triggering temperature) of middle wind speed
Under, hot-swappable fans 3 starts, and relies on the pressure reduction of the wind direction up and down of hot-swappable fans 3 offer, significantly increases by heat exchanger 2 pars intermedia
The air mass flow divided, according to heat exchange principle, the heat exchange power of this hybrid mode is higher than the heat exchange power of natural heat-exchange mode,
Heat generating components radiating requirements under middle wind speed can be met.
The natural heat-exchange operating mode (when dropping to below motor 5 closedown triggering temperature at a temperature of heat generating components monitoring) of high wind speed
Under, hot-swappable fans 3 is closed, and heat generating components fully relies on ambient wind and carries out heat exchange.Coolant/oil flows through heat exchanger 2, with heat exchange
Air around device 2 carries out heat exchange.Cooling system again recovers natural heat-exchange mode and carries out heat exchange, and now ambient wind provides
Air mass flow can meet heat generating components radiating requirements, it is no longer necessary to start hot-swappable fans 3.
According to heat transfer equation and equation of heat balance, for the heat exchanger of the same race that heat exchange area is equal, the stream of cold flow body
Measuring the biggest, the heat exchange power of heat exchanger is the highest；The heat exchanger of the same race not waited for area, the flow of cold flow body is the biggest, heat exchange
The heat exchange efficiency of device is the highest.Simultaneously because the cooling air quantity of natural heat-exchange mode is not enough, cause high-power MW class heat exchanger
Volume weight is increasing, has exceeded the scope of cabin intensity license.To this end, natural heat-exchange is changed by this utility model with pressure
Hot two ways organically combines, and can reduce Wind turbines under the conditions of using the heat exchanger meeting cabin requirement of strength as far as possible
The power consumption of cooling system.
Mixed heat transfer mode used by this utility model, uses identical heat exchanger with natural heat-exchange mode, at different wind
Contrast under the conditions of speed is as shown in Figure 4.From fig. 4, it can be seen that the heat dissipation capacity of heat generating components is after exceeding incision wind speed, along with wind speed increases
Add and increase；No longer increasing due to generated output after reaching rated wind speed, heat dissipation capacity tends to definite value and is not further added by.Natural heat-exchange
Mode is under low wind friction velocity, because the heat dissipation capacity of heat generating components is relatively low, the air mass flow that ambient wind provides disclosure satisfy that heat radiation
Demand；But reaching the middle wind speed stage, the heat dissipation capacity growth rate of heat generating components exceedes the heat exchange amount growth rate of heat exchanger,
Make the heat exchange amount that the heat exchanger under middle wind friction velocity can be provided by less than the heat dissipation capacity of heat generating components, break thermal balance,
Cause heat generating components overheating fault；Continuing to rise to the high wind speed stage with wind speed, the heat dissipation capacity of heat generating components is held due to unit
Amount limits and tends to definite value, and the heat exchange amount that heat exchanger can be provided by continues to increase, thus under the conditions of high wind speed
Heat exchanger meets the radiating requirements of heat generating components again.
In sum, hybrid cooling system of the present utility model uses mixed heat transfer mode, under low wind friction velocity, from
When so heat exchange mode disclosure satisfy that radiating requirements, fan cuts out, and relies on natural heat-exchange mode to carry out heat exchange；When reaching middle wind
In the speed stage, flow through the coolant of heat generating components/oil monitoring temperature when reaching more than the electric motor starting triggering temperature of hot-swappable fans, change
Hot-air fan starts, and improves the heat exchange amount that heat exchanger can be provided by, meets the radiating requirements of heat generating components, to ensure heat generating components
Normal work；When wind speed increases to the high wind speed stage further, the coolant/oil monitoring temperature flowing through heat generating components is down to change
The motor of Hot-air fan cuts out when triggering below temperature, and hot-swappable fans is closed, returned to fully rely on the natural heat-exchange side of ambient wind
Formula carries out heat exchange, thus reduce started by hot-swappable fans cause from power consumption.
The above, be only preferred embodiment of the present utility model, not this utility model is made any in form
Restriction, those skilled in the art utilize the technology contents of the disclosure above to make a little simple modification, equivalent variations or modification, all
Fall in protection domain of the present utility model.
Claims (5)
1. a hybrid cooling system for Wind turbines, for the cooling of heat generating components of Wind turbines, its feature exists
In, install including support, heat exchanger, hot-swappable fans, motor, temperature measuring equipment and controller, described heat exchanger and hot-swappable fans
On the bracket and position is relative, described motor connects and drives described hot-swappable fans, and described temperature measuring equipment is used for measuring institute
Stating the temperature data of heat generating components, and described temperature data sends to described controller, described controller is according to receiving
Described temperature data controls the keying of described motor.
The hybrid cooling system of a kind of Wind turbines the most according to claim 1, it is characterised in that described support includes
Heat exchanger mounting bracket and hot-swappable fans mounting bracket, described heat exchanger mounting bracket is frame-type support, described frame-type support
Dual-side is respectively equipped with protuberance on edge, and described hot-swappable fans mounting bracket is plate-shaped carrier, and the two ends of described plate-shaped carrier are divided
Do not fix with described protuberance and be connected.
The hybrid cooling system of a kind of Wind turbines the most according to claim 1, it is characterised in that described temperature measuring equipment
For temperature sensor.
The hybrid cooling system of a kind of Wind turbines the most according to claim 1, it is characterised in that also include for cover
At the barrier outside described hot-swappable fans.
5. a Wind turbines, it is characterised in that include the hybrid cooling system according to any one of claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620535621.4U CN205714604U (en) | 2016-06-03 | 2016-06-03 | A kind of Wind turbines and hybrid cooling system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620535621.4U CN205714604U (en) | 2016-06-03 | 2016-06-03 | A kind of Wind turbines and hybrid cooling system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714604U true CN205714604U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620535621.4U Active CN205714604U (en) | 2016-06-03 | 2016-06-03 | A kind of Wind turbines and hybrid cooling system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894955A (en) * | 2017-03-13 | 2017-06-27 | 新疆金风科技股份有限公司 | The cabin wind cooling temperature lowering system and wind power generating set of wind power generating set |
-
2016
- 2016-06-03 CN CN201620535621.4U patent/CN205714604U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894955A (en) * | 2017-03-13 | 2017-06-27 | 新疆金风科技股份有限公司 | The cabin wind cooling temperature lowering system and wind power generating set of wind power generating set |
| CN106894955B (en) * | 2017-03-13 | 2019-01-04 | 新疆金风科技股份有限公司 | The cabin wind cooling temperature lowering system and wind power generating set of wind power generating set |
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