阅读说明：本技术 一种风力发电机组的降温机构及风力发电机组 (Cooling mechanism of wind generating set and wind generating set ) 是由 李岩 年浩 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种风力发电机组的降温机构及风力发电机组,所述降温机构包括散热组件和冷却装置；所述散热组件包括设置在轮毂上的进风口,及设置于塔筒处的出风口和风机,所述轮毂与塔筒内部相互连通；所述冷却装置包括设置于各风力发电机组处的散热片,及设置于塔筒内且沿塔筒内壁设置的冷凝管,该冷凝管沿塔筒内壁绕设于各风力发电组部件处,所述塔筒内底部设有水箱,所述冷凝管连接于水箱内,该水箱内设水泵。本发明能够对风力发电机组进行有效冷却,并且避免冷却装置被腐蚀。(The invention discloses a cooling mechanism of a wind generating set and the wind generating set, wherein the cooling mechanism comprises a heat dissipation assembly and a cooling device; the heat dissipation assembly comprises an air inlet arranged on the hub, an air outlet arranged on the tower drum and a fan, and the hub is communicated with the interior of the tower drum; the cooling device comprises cooling fins arranged at the positions of the wind generating sets and a condenser pipe arranged in the tower barrel and arranged along the inner wall of the tower barrel, the condenser pipe is wound at the positions of the wind generating sets along the inner wall of the tower barrel, a water tank is arranged at the bottom in the tower barrel, the condenser pipe is connected in the water tank, and a water pump is arranged in the water tank. The invention can effectively cool the wind generating set and avoid the corrosion of the cooling device.)

1. The utility model provides a wind generating set's cooling mechanism which characterized in that: the cooling mechanism comprises a heat dissipation assembly and a cooling device; the heat dissipation assembly comprises an air inlet arranged on the hub, an air outlet arranged on the tower drum and a fan, and the hub is communicated with the interior of the tower drum;

the cooling device comprises cooling fins arranged at the positions of the wind generating sets and a condenser pipe arranged in the tower barrel and arranged along the inner wall of the tower barrel, the condenser pipe is wound at the positions of the wind generating sets along the inner wall of the tower barrel, a water tank is arranged at the bottom in the tower barrel, the condenser pipe is connected in the water tank, and a water pump is arranged in the water tank.

2. The method of claim 1, wherein: a tower drum door is arranged at the tower drum and provided with a plurality of second air outlets.

3. The method of claim 2, wherein: the second air outlets are uniformly distributed at the tower drum door from top to bottom.

4. The method of claim 1, wherein: and temperature sensors are arranged on the inner wall of the tower barrel and each wind generating set component.

5. The method of claim 4, wherein: the temperature display, the wireless device and the processor are installed at the bottom in the tower barrel, each temperature sensor is connected with the processor, and the processor is electrically connected with the display and the wireless device; the water pumps are electrically connected with the processor.

6. The method of claim 5, wherein: the bottom platform is further arranged at the bottom in the tower barrel, and the display, the wireless device and the processor are all arranged on the bottom platform.

7. The method of claim 1, wherein: the first air inlet comprises a gap between a blade and the hub and/or a gap between the hub and the generator.

8. The method of claim 1, wherein: the processor is electrically connected with each wind generating set.

9. A wind park according to any of claims 1 to 7, wherein the wind park comprises a heat dissipating mechanism of the wind park.

Technical Field

The invention relates to the field of wind power generation, in particular to a cooling mechanism of a wind generating set and the wind generating set.

Background

The wind power generation power supply comprises a wind generating set, a tower frame for supporting the generating set, a storage battery charging controller, an inverter, an unloader, a grid-connected controller, a storage battery pack and the like; the wind generating set comprises a wind wheel and a generator; the wind wheel comprises blades, a hub, a reinforcing member and the like; it has the functions of wind driven blade rotation to generate electricity, generator head rotation, etc. Selecting wind speed: the low wind speed wind power generator can effectively improve the wind energy utilization of the wind power generator in a low wind speed area, and low wind speed products are recommended to be selected in areas with annual average wind speed less than 3.5m/s and no typhoon.

The wind generating set comprises a wind wheel and a generator; the wind wheel comprises blades, a hub, a reinforcing member and the like; it has the functions of wind driven blade rotation to generate electricity, generator head rotation, etc. The wind power generation power supply comprises a wind generating set, a tower frame for supporting the generating set, a storage battery charging controller, an inverter, an unloader, a grid-connected controller, a storage battery pack and the like.

When the wind generating set generates electricity, the output electric frequency is ensured to be constant. The wind power generation system is very necessary for wind power grid-connected power generation and wind-solar hybrid power generation. To ensure the constant frequency of wind power, one way is to ensure the constant rotating speed of the generator, i.e. the constant speed and constant frequency operation way, because the generator is driven by the wind turbine through the transmission device to operate, the rotating speed of the wind turbine needs to be undoubtedly constant, and the way can influence the conversion efficiency of wind energy; the other mode is that the rotating speed of the generator changes along with the wind speed, and the constant frequency of the output electric energy is ensured by other means, namely, the variable-speed constant-frequency operation is realized.

At present, the designed operating temperature of the wind generating set is in a range of-10 to 40 ℃, which mainly depends on the temperature tolerance range of each system and component of the wind generating set. Under the condition of higher ambient temperature, because the components generate heat and absorb heat in the environment during operation, the temperature conditions of the components exceed the normal temperature operation range, and the reliability and the availability of the wind generating set are greatly reduced. For example, electrical components, lubricant, and rubber are very sensitive to ambient temperature, and the mechanical support structure may also lose the designed load-bearing capacity of the original mechanical structure under high temperature conditions.

As wind power generation sets are applied to various environmental conditions, there is also a need for development of wind power for some high temperature areas, such as tropical areas or inland high heat areas. Wind power manufacturers have begun to erect wind turbines in these areas and shut down in conditions exceeding 40 c. However, because the proportion of the high-temperature environment of 40 ℃ or even above 40 ℃ in the high-temperature region is higher all the year round, the energy availability of the wind generating set in the region is greatly reduced due to the fact that the wind generating set is simply stopped at high temperature.

Wind power generators are power generation devices that rely on capturing wind energy to convert kinetic energy into electrical energy. In modern large wind power generators, as the power generated by a single wind power generator increases, more and more heat is generated by heat generating components inside the wind power generator. Especially, a wind power generator installed in a high temperature environment for a long time is prone to malfunction during operation.

At present, most of cooling systems for wind driven generators adopt air cooling for heat dissipation, and air with lower external environment temperature is used for cooling heating components in the wind driven generator set. However, the way of cooling the wind turbine generator set by means of natural wind has not been satisfactory, and forced cooling must be adopted to dissipate heat of the wind turbine generator set. At present, cooling devices such as water cooling devices and solid state heat sinks are generally used to dissipate heat from main electrical equipment. To achieve the desired heat dissipation, the cooling device is often exposed outside the tower to dissipate the heat absorbed by the cooling device to the outside air. However, the cooling device exposed outside the tower is subject to wind, sand, rain and snow, and is easily corroded, and the failure rate is high.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a cooling mechanism of a wind generating set and the wind generating set, which can effectively cool the wind generating set and prevent a cooling device from being corroded.

The technical scheme adopted by the invention for solving the technical problems is as follows: the cooling mechanism comprises a heat dissipation assembly and a cooling device; the heat dissipation assembly comprises an air inlet arranged on the hub, an air outlet arranged on the tower drum and a fan, and the hub is communicated with the interior of the tower drum; the cooling device comprises cooling fins arranged at each wind generating set and a condenser pipe arranged in the tower barrel and arranged along the inner wall of the tower barrel, the condenser pipe is wound at each wind generating set component along the inner wall of the tower barrel, a water tank is arranged at the bottom in the tower barrel, the condenser pipe is connected in the water tank, and a water pump is arranged in the water tank;

preferably, the method comprises the following steps: a tower drum door is arranged at the tower drum and provided with a plurality of second air outlets.

Preferably, the method comprises the following steps: the second air outlets are uniformly distributed at the tower drum door from top to bottom.

Preferably, the method comprises the following steps: temperature sensors are arranged on the inner wall of the tower barrel and parts of each wind generating set;

preferably, the method comprises the following steps: the temperature display, the wireless device and the processor are installed at the bottom in the tower barrel, each temperature sensor is connected with the processor, and the processor is electrically connected with the display and the wireless device; the water pumps are electrically connected with the processor.

Preferably, the method comprises the following steps: the bottom platform is further arranged at the bottom in the tower barrel, and the display, the wireless device and the processor are all arranged on the bottom platform.

Preferably, the method comprises the following steps: the first air inlet comprises a gap between a blade and the hub and/or a gap between the hub and the generator.

Preferably, the method comprises the following steps: the processor is electrically connected with each wind generating set.

The invention has the beneficial effects that: the temperature condition of each wind power generation set component is monitored by the temperature sensor, and the temperature of each wind power generation set component can be sent to the network by the wireless device, so that the working state of each wind power generation set can be monitored in real time on the network, meanwhile, due to the arrangement of the processor, the cooling and heat dissipation mode under normal conditions is realized by the heat dissipation component, when the temperature of each wind power generation set component is monitored by the temperature sensor to be overhigh, the processor starts the water pump, so that the effect of accelerating cooling is achieved by flowing water in each wind power generation set component through the condensation pipe,

the concentrated heat is discharged out of the tower cylinder through the set fan. From this, can set up the cooling device who carries out independent cooling to main electrical equipment inside tower section of thick bamboo to inside the noise control tower section of thick bamboo with its operation, reduced aerogenerator group to the noise influence of external environment, avoided cooling device to expose the perishable problem in external environment for a long time simultaneously, reduced cooling device's fault rate, prolonged its life.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention

Detailed Description

The invention is further described below with reference to the accompanying drawings:

the cooling mechanism comprises a heat dissipation assembly and a cooling device; the heat dissipation assembly comprises an air inlet arranged on the hub 1, an air outlet and a fan arranged at the tower tube 6, and the hub is communicated with the interior of the tower tube; through only one ventilation fan is arranged to exchange heat with the outside, the heat dissipation system is simple in structure, few in fault points and small in operation and maintenance workload. The first air inlet comprises a gap between a blade and the hub and/or a gap between the hub and the generator.

The cooling device comprises cooling fins arranged at each wind generating set and a condenser pipe arranged in the tower barrel and arranged along the inner wall of the tower barrel, the condenser pipe is wound at each wind generating set component along the inner wall of the tower barrel, a water tank 2 is arranged at the bottom in the tower barrel, the condenser pipe 8 is connected in the water tank, and a water pump 7 is arranged in the water tank;

the ventilation air below the side wall of the tower of the wind generating set discharges hot air in the tower through the air outlet, air negative pressure is formed in the tower, external low-temperature air enters the tower from the first air inlet under the action of atmospheric pressure, heat generated by electrical equipment in the engine room, the generator and the hub and heat discharged by the cooling device are brought to the bottom of the tower 11 through air flowing from top to bottom, and then the air is discharged through the air outlet. In addition, the cooling device for cooling the electrical equipment is arranged inside the tower barrel, so that the running noise of the cooling device is controlled inside the tower barrel, the noise influence of the wind driven generator on the external environment is reduced, the problem that the cooling device is exposed to the external environment for a long time and is easy to corrode is avoided, the failure rate of the cooling device is reduced, and the service life of the cooling device is prolonged.

Wherein a tower tube door 5 is arranged at the tower tube, and a plurality of second air outlets are arranged on the tower tube door. Wherein the second air outlets are uniformly arranged at the tower drum door from top to bottom. Temperature sensors are arranged on the inner wall of the tower barrel and parts of each wind generating set; the temperature display, the wireless device and the processor are installed at the bottom in the tower barrel, each temperature sensor is connected with the processor, and the processor is electrically connected with the display and the wireless device; the water pumps are electrically connected with the processor.

The bottom platform 3 is further arranged at the bottom in the tower barrel, and the display 4, the wireless device and the processor are all arranged on the bottom platform.

Wherein the processor is electrically connected with each wind generating set.

The temperature condition of each wind power generation group component is monitored through the temperature sensor, simultaneously, the temperature of each wind power generation group component can be sent to the network through the wireless device, the working state of each wind power generation group can be monitored on the network in real time, meanwhile, due to the arrangement of the processor, the cooling and heat dissipation mode of the normal condition is realized through the heat dissipation assembly, when the temperature of each wind power generation group component is monitored through the temperature sensor, the water pump is started through the processor, and the effect of accelerating cooling is achieved by enabling water to flow in each wind power generation group component through the condensation pipe.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.