A kind of cooling device of wind-driven generator
Technical field
The utility model relates to technical field of wind power generation more particularly to a kind of cooling devices of wind-driven generator.
Background technique
Wind power generation principle is that under the action of the wind, wind wheel, blade generate kinetic energy, and kinetic energy transmits after passing through gear-box speedup
It generates electricity to generator (direct-drive type blower does not have gear-box, and kinetic energy is directly passed to generator), passes through frequency conversion tank tune later
Section networks.Generator and frequency conversion tank can generate a large amount of heat during the work time, need to be dissipated in ambient enviroment.Therefore one
As for generator, frequency converter configure cooling system, taken away by the heat that the iterative cycles of medium are issued, make generator,
Frequency converter can be in the at a temperature of persistently reliable work of permission.
Existing wind-driven generator water-cooling system is closed system, and when maintenance needs all to release its interior media, maintenance
After need for water-cooling system again filling liquid, and filling liquid mostly uses greatly manually mode at this stage, i.e., is filled using manual pressure pump
Liquid, entire filling process takes around 2 hours, time-consuming and laborious.Simultaneously because the reasons such as water-cooling system leakage, evaporation, with fortune
The row time lengthens, and water-cooling system pressure can be gradually reduced, if supplementing cooling medium not in time, when pressure declines to a certain extent
When, alarm signal can occur for pressure switch in water-cooling system, cause water-cooling system out of service, and wind field is at this moment just needed to safeguard people
Member goes to unit, and boarding checks problem and supplements anti-icing fluid, and blower is constantly in shutdown status in whole process, cannot generate electricity,
This is a kind of waste to wind-resources.
Utility model content
The utility model in view of the above problems propose a kind of cooling device of wind-driven generator, including automatic water supplement dress
It sets, which may be implemented to be automatically replenished after the cooling medium in water-cooling system is reduced due to leak or evaporating, from
And the machine stop times of blower can be reduced, shorten maintenance time and maintenance cost, and then reduce the stoppage in transit power generation loss of unit.
The technological means that the utility model uses is as follows:
A kind of cooling device of wind-driven generator, including the first water pump, air cooler and water cooling pipeline, the fever of unit
Component is arranged on the water cooling tube road, and the water inlet of the water cooling pipeline is connect with the water outlet of first water pump, described
The water inlet of first water pump is connect with the water outlet of the air cooler, the water inlet of the air cooler and the water cooling pipeline
Water outlet connection, further include automatic water-replenishing device, the automatic water-replenishing device includes water tank, the second water pump, check valve, filling liquid
Ball valve, first pressure switch, second pressure switch and controller, the water tank are built-in with cooling medium, second water pump
Water inlet be placed in water tank, the water outlet of second water pump passes sequentially through check valve and filling liquid ball valve and water cooling pipeline connects
It connects, the first pressure switch and second pressure switch are mounted on the water cooling tube road and are electrically connected with the controller, institute
It states the second water pump to be electrically connected with the controller, the setup pressure value of the first pressure switch is switched less than the second pressure
Setup pressure value, when setup pressure value of the pressure in the water cooling pipeline lower than first pressure switch, described the
One pressure switch sends low-voltage signal to the controller, and the controller controls second water pump into the water cooling pipeline
It pumps, when the pressure in the water cooling pipeline is greater than the setup pressure value of second pressure switch, the second pressure is opened
It closes to the controller and sends high-voltage signal, the controller controls second water pump and stops working;
Further, further include thermostat valve, the thermostat valve include two water inlet valve ports and a water outlet valve port, it is described into
Water valve mouth includes the hot water valve port connecting with the water outlet of the water cooling pipeline and connect with the water outlet of the air cooler
The water outlet valve port of cold water valve port, the thermostat valve is connect with the water inlet of first water pump, the thermostat valve can according to its into
The aperture of the conducting orifice of water outlet valve port and the hot water valve port and cold water valve port described in the lower water temperature of water valve mouth;
It further, further include expansion drum, the expansion drum is placed in the inlet end of the water cooling pipeline;
It further, further include safety valve, the water cooling pipeline is connect by the safety valve by overflow sebific duct with water tank,
When the hydraulic pressure value in the water cooling pipeline is greater than the preset value of the safety valve, the cooling medium in the water cooling pipeline passes through
The safety valve reflow tank;
It further, further include the first temperature sensor and second temperature sensor, the first temperature sensor connection
In water inlet one end of the water cooling pipeline, the second temperature sensor is connected to water outlet one end of the water cooling pipeline;
It further, further include pressure meter switch and pressure gauge, the pressure gauge passes through pressure meter switch and the water cooling
Piping connection.
It further, further include first row air valve and second row air valve, the first row air valve is arranged in the water cooling tube
On the road, the second row air valve is arranged in the air cooler;
Further, liquid level relay, air cleaner and liquid level liquid thermometer, the liquid are additionally provided on the water tank
Position relay be electrically connected with the controller, the liquid level liquid thermometer for measure the water level of cooling medium in the water tank with
Temperature value, the liquid level liquid thermometer are electrically connected with the controller, when the liquid level in the water tank is lower than predetermined value, the control
The device control processed liquid level relay is closed and then realizes outside to cooling medium is filled in water tank, when outside is cold to water tank filling
But when medium, the air in water tank is discharged from the air cleaner;
It further, further include pressure measuring tie-in, the pressure measuring tie-in is placed between the thermostat valve and first water pump.
Compared with the prior art, a kind of cooling device of wind-driven generator described in the utility model has below beneficial to effect
Fruit: 1, the device includes water tank, water pump, pressure switch and controller, and pressure switch can detecte the pressure in water cooling pipeline
And cooling medium is supplemented automatically after reducing in water cooling pipeline, it is possible to reduce the machine stop times of blower shorten maintenance time
And maintenance cost;2, thermostat valve is provided in water cooling pipeline, thermostat valve can control the folding angle of valve and then adjust water cooling
The temperature of cooling medium in pipeline, in order to which wind power generating set work is in suitable working environment;3, in water cooling pipeline
It is provided with expansion drum, expansion drum can be elastic potential energy the hydraulic energy transfer in water cooling pipeline and store to remain hydraulic
Stability, when the device needs big flow or pump discharge pressure to fluctuate, expansion drum can discharge stored energy
To adjust the stability of pressure, prevent pressure in water cooling pipeline from big fluctuation occur;4, water cooling tube road is additionally provided with safety valve,
When the pressure in water cooling pipeline is greater than the value set in safety valve, cooling medium can be flowed back by safety valve in water cooling pipeline
To water tank, pollution Fan Equipment can be prevented again to avoid the waste of cooling medium;5, liquid level relay is additionally provided in water tank
The automatic detection to the liquid level temperature in water tank may be implemented in device, air cleaner and liquid level liquid thermometer, and in cooling medium
After reducing to a certain extent, cooling medium can be automatically replenished.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the cooling device of wind-driven generator disclosed by the utility model.
In figure: 1, first water pump, the 2.1, first temperature sensor, 2.2, second temperature sensor, 22, overflow sebific duct, 3,
Expansion drum, 4.1, first row air valve, 4.2, second row air valve, 5, pressure meter switch, 6, pressure gauge, 7, filling liquid ball valve, 8, first
Pressure switch, 9, second pressure switch, 10, safety valve, 12, water cooling pipeline, 14, thermostat valve, 15, pressure measuring tie-in, 17, air-cooled
But device, the 19, second water pump, 20, check valve, 23, liquid level relay, 24, air cleaner, 25, liquid level liquid thermometer, 26, water
Case.
Specific embodiment
It is as shown in Figure 1 a kind of cooling device of wind-driven generator disclosed by the utility model, including the first water pump 1, wind
The heat generating components of cooler 17 and water cooling pipeline 12, wind-driven generator unit is arranged on water cooling pipeline 12, water cooling pipeline 12
Water inlet connect with the water outlet of the first water pump 1, the water inlet of the first water pump 1 is connect with the water outlet of air cooler 17, wind
The water inlet of cooler 17 is connect with the water outlet of water cooling pipeline 12,1 structure of water cooling pipeline 12, air cooler 17 and the first water pump
It is used to carry out cooling and heat dissipation to wind power generating set at the water-cooling loop of wind-driven generator.The device further includes automatic water supplement dress
It sets, automatic water-replenishing device includes water tank 26, the second water pump 19, check valve 20, filling liquid ball valve 7, the pressure of first pressure switch 8, second
Power switch 9 and controller (controller is not shown in the figure), controller generally use PLC controller, and the water tank 26 is built-in with
Cooling medium, cooling medium generally use water, and the water inlet of second water pump 16 is placed in water tank 26, second water pump 19
Water outlet pass sequentially through check valve 20 and filling liquid ball valve 7 is connect with water cooling pipeline 12, the first pressure switch 8 and the second pressure
Power switch 9 is mounted on the water cooling pipeline 12 and is electrically connected with the controller, second water pump 19 also with the control
Device electrical connection, one pressure value of setting of the first pressure switch 8, one pressure value of setting of the second pressure switch 9,
The pressure value of the setting of first pressure switch 8 is less than the pressure value of the setting of the second pressure switch 9, and specific pressure value is set
Fixed to be set according to real work situation, first pressure switch 8 and second pressure switch 9 are for measuring in water cooling pipeline 12
Pressure, cooling medium in water cooling pipeline 12 evaporate and water clock etc. due to can gradually lose, when in water cooling pipeline 12
When pressure is lower than the setup pressure value of first pressure switch 8, first pressure switch 8 issues low-voltage signal to controller, when described
Controller, which receives, can control the work of the second water pump 19 after low-voltage signal to pump into the water cooling pipeline 12, and second
Water pump 19 gradually increases the pressure in water cooling pipeline during pumping into cooling line 12, when in the water cooling pipeline 12
Pressure be greater than the second pressure switch 9 setup pressure value when, second pressure switch 9 to controller sending high-voltage signal,
Second water pump 19 is controlled after the controller receives high-voltage signal to stop working, and is completed to the automatic of cooling system
Water supplement function.
Further, which further includes thermostat valve 14, and the thermostat valve 14 includes two water inlet valve ports and a water outlet
Valve port, the water inlet valve port include the hot water valve port being connect with the water outlet of the water cooling pipeline 12 and with the air cooler 17
Water outlet connection cold water valve port, the water outlet valve port of the thermostat valve 14 is connect with the water inlet of first water pump 1, described
Thermostat valve 14 can intake according to it is discharged the conducting of valve port and the hot water valve port and cold water valve port described in lower water temperature of valve port
The aperture of mouth.For example, thermostat valve 14 fully opens, i.e. temperature control when the temperature of the cooling medium in water cooling pipeline is lower than 25 DEG C
The water outlet valve port of valve is connect with hot water valve port completely, and the cold water valve port connecting with the water outlet of air cooler is closed, cooling to be situated between
Matter is not by air cooler but directly enters the circulation that the first water pump realizes cooling medium by thermostat valve, in order to cold
But the temperature of medium increases;When the coolant temperature in cooling line is higher than 30 DEG C, thermostat valve 14 is completely closed, i.e. temperature control
The water outlet valve port of valve is connect with cold water valve port completely, and the hot water valve port connecting with the water outlet of water cooling pipeline is closed, cooling to be situated between
Matter is entering the circulation that the first water pump realizes cooling medium by thermostat valve after radiating completely by air cooler;Work as cooling
When coolant temperature in pipeline is between 25 DEG C to 30 DEG C, the endless full open of thermostat valve 14, i.e. the outlet valve oral area of thermostat valve
Point connect with cold water valve port, another part is connect with hot water valve port, the part cooling medium of water cooling pipeline pass through air cooler into
The first water pump is entered by thermostat valve after row heat dissipation, another part cooling medium of water cooling pipeline directly passes through thermostat valve and enters the
One water pump is realized the hot cooling medium that will be flowed out from the water outlet of water cooling pipeline and is flowed out from the water outlet of air cooler cold
But to be recycled after the mixing of medium.Since the thermal component (predominantly electronic component) of wind power generating set has centainly
Preferred range, operating temperature is not more lower better, therefore increases thermostat valve in the apparatus, can automatically be adjusted
The temperature of cooling medium in water cooling pipeline, in order to wind power generating set work within the scope of suitable temperature, ensure that and set
Standby service performance and service life.
Further, which further includes expansion drum 3, and the expansion drum 3 is placed in the water inlet one of the water cooling pipeline 12
End.Expansion drum 3 has the function of maintaining pressure in water cooling pipeline stable, and big ups and downs occurs in the pressure in reduction water cooling pipeline,
Specifically, when pump working causes water cooling pipeline pressure rise extremely, expansion drum can deposit hydraulic energy transfer for elastic potential energy
Storage is got up to maintain pressure to stablize, when causing pressure reduction in water cooling pipeline due to water pump or water clock etc., elastic potential energy
Release is converted to hydraulic energy to guarantee to work normally.
Further, which further includes safety valve 10, and the safety valve 10 passes through overflow sebific duct 22 for the water cooling tube
Road 12 is connect with water tank 26, when the hydraulic pressure value in the water cooling pipeline 12 is greater than the preset value of the safety valve 10, the water
Cooling medium in cold pipeline 12 is flow back into water tank 26 by the safety valve 10.Specifically, due to ambient temperature variation or
The reasons such as the difference of the working condition of blower, the coolant temperature being placed in water cooling pipeline can constantly change, when temperature becomes
When changing violent, the volume of cooling medium will increase the pressure increase caused in water cooling pipeline, when pressure is beyond safety valve setting
When predetermined value, safety valve can be opened, and the part cooling medium in water cooling pipeline is flowed back into water tank, in order to utilize again,
Simultaneously fan assembly can also be polluted to avoid cooling medium.
Further, which further includes the first temperature sensor 2.1 and second temperature sensor 2.2, first temperature
Degree sensor 2.1 is connected to water inlet one end of the water cooling pipeline 12, and the second temperature sensor 2.2 is connected to the water
Water outlet one end of cold pipeline 12.First temperature sensor 2.1 and second temperature sensor 2.2 can be used for measuring water cooling pipeline
In inlet temperature and outlet temperature, in order to understand the working condition of cooling device in real time.
Further, which further includes pressure meter switch 5 and pressure gauge 6, and the pressure gauge 6 passes through pressure meter switch 5
It is connect with the water cooling pipeline 12, detection pressure is carried out when repairing in order to the device.
Further, which further includes first row air valve 4.1 and second row air valve 4.2, the first row air valve setting
On the water cooling tube road, it is preferable that the inlet of expansion drum is set, and the second row air valve is arranged in the air cooler
On, first row air valve is set and second row air valve can be with the air in tapping equipment.
Further, liquid level relay 23, air cleaner 24 and liquid level liquid thermometer are additionally provided on the water tank
25, the liquid level relay 23 is electrically connected with the controller increases cooling medium into water tank for controlling extraneous water pump,
The liquid level liquid thermometer 25 is used to measure the water level and temperature value of the cooling medium in the water tank 26, the liquid level liquid thermometer 25
It is electrically connected with the controller, when the liquid level in the water tank 26 is lower than predetermined value, liquid level liquid thermometer 25 is issued to controller
Low liquid level signal, the controller control liquid level relay 23, which is closed and then realizes that outside is cooling to filling in water tank, to be situated between
Matter, during outside fills cooling medium to water tank, the air in water tank is discharged from the air cleaner, when in water tank
Cooling medium when being higher than predetermined value, liquid level liquid thermometer 25 issues high liquid level signal to controller, states controller and controls the liquid
Position relay 23 disconnects and then stops to filling cooling medium in water tank.
Further, which further includes pressure measuring tie-in 15, the pressure measuring tie-in 15 be placed in the thermostat valve 14 with it is described
Between first water pump 1, detection pressure is carried out when in order to repair.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.