CN211557075U - 4.8MW high power open air cooler - Google Patents

Abstract

The utility model relates to a 4.8MW high-power open-type air cooler, comprising a cooler frame and a centrifugal fan, wherein the centrifugal fan is vertically installed in the cooler frame, and the cooler frame is mounted on the top of a wind power generator and is connected with the inside of the motor connected, the cooler frame takes in air from at least three sides, and a filter is installed on the air inlet; an internal air duct is installed in the cooler frame, and the internal air duct is connected to the air outlet of the centrifugal fan and the side of the cooler frame. hood. It reduces the space of the cooling body and reduces the cost.

Description

4.8MW high power open air cooler

technical field

The utility model relates to the field of wind power generation, in particular to a 4.8MW high-power open-type air cooler for cooling a wind power generator.

Background technique

The air coolers commonly used in the market are arranged with heat exchange tubes of various materials, but even if the heat exchange tubes with the best heat exchange performance are used, in the overall heat exchange process of the cooler, the cold air must pass through the heat exchange tubes, and then The hot air that needs to be cooled is transmitted by the heat exchange tube, and a part of the energy will be lost in the middle due to the influence of the heat exchange performance of the heat exchange tube itself. In order to have sufficient heat exchange performance, conventional coolers often have the disadvantages of large volume and high cost.

SUMMARY OF THE INVENTION

In order to solve the problem of large volume and high cost of the heat exchanger caused by the lack of heat exchange performance in the prior art, the purpose of the present invention is to provide a high-power open air cooler with reduced cooling body space and reduced cost.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is:

The 4.8MW high-power open-type air cooler includes a cooler frame and a centrifugal fan. The centrifugal fan is vertically installed in the cooler frame. The cooler frame takes in the air from at least three sides, and a filter is installed on the air inlet; an internal air duct is installed in the cooler frame, and the internal air duct is connected to the air outlet of the centrifugal fan and the air outlet on the side of the cooler frame. Outlet hood.

Further, the bottom of the cooler frame is open, the centrifugal fan is installed in the middle of the cooler frame, and the air inlet of the centrifugal fan is flush with the bottom of the cooler frame.

Further, the front, rear and right sides of the cooler frame are composed of multiple primary filters.

Further, the cooler frame is concave in the middle, and the centrifugal fan is installed in the concave structure.

Still further, a differential pressure controller is installed on the cooler frame.

After adopting the technical scheme, the beneficial effects of the present utility model are as follows: no intermediate carrier is used for heat exchange, and compared with the conventional air-to-air cooler under the same heat exchange power, the utility model has the advantages of small volume, light weight, low cost, low noise, Save the cabin interior space and other advantages. The air is filtered with primary effect, which increases the cleanliness of the air, reduces the pollution of the outside air to the inside of the generator, and prolongs the service life of the generator.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the left side view of the utility model;

Fig. 3 is the right side view of the utility model;

Fig. 4 is the perspective view of the utility model;

FIG. 5 is a state diagram of the utility model in use.

In the figure: cooler frame 1, primary filter 2, circulating centrifugal fan 3, air outlet hood 4, differential pressure controller 5, internal air duct 6, wind power generator 7.

Detailed ways

The specific embodiments of the present utility model are described in further detail below in conjunction with the accompanying drawings:

As shown in Figure 1-4, the 4.8MW high-power open air cooler consists of a circulating centrifugal fan 3 and a cooler frame 1. The centrifugal fan 3 is installed in the cooler frame 1, and the air inlet of the centrifugal fan 3 is connected to the cooler frame. 1 is flush with the bottom surface. The cooler frame 1 is installed on the top of the wind power generator 7 , and the bottom surface of the cooler frame 1 is opened for ventilation with the wind power generator 7 . The top and left sides of the cooler frame 1 are provided with sealing plates, and a plurality of lifting rings are installed on the top sealing plate to facilitate lifting and installation. An air outlet hood 4 is opened on the left side of the cooler frame. The air outlet of the circulating centrifugal fan 3 communicates with the air outlet hood 4 through an internal air duct 6 installed in the cooler frame 1 to discharge the hot air after heat exchange. The other three sides of the cooler frame 1 are composed of multiple primary filters 2, which can filter the impurities in the air while ensuring sufficient ventilation, which can not only improve the life of the wind turbine, but also ensure that enough cold air enters the cooling .

Since the centrifugal fan 3 is installed vertically, and its motor is installed vertically on the outside of the cooler frame 1, a concave structure is designed in the middle of the frame, the motor is installed in the concave structure, and the boxes on both sides extend upward to the height of the motor, fully The space is utilized, the space of the air inlet chamber is increased, the air inlet volume is increased, and the cooling effect is improved. The technical solution adopts a concave cooler frame, and 16 primary filters 2 are installed on the surface of the frame, and the heat exchange power reaches 4.8MW, which is about 1.5-2 times the power of conventional air coolers. The direct circulation cooling mode does not use an intermediate carrier for heat exchange. Compared with the conventional air-to-air cooler, it has the advantages of small size, light weight, low cost, low noise, and saving the interior space of the engine room under the same heat exchange power.

As shown in Figure 5, the working principle of this technical solution is that after the internal circulation centrifugal fan 3 is started, the centrifugal fan 3 sucks air in the middle, so that a negative pressure is formed between the generator 7 and the cooler, and the cold air from the outside is forced to pass through the initial effect. After being filtered by filter 2, it enters into the generator 7. After filtering by the filter, the foreign matter, dust, etc. in the air are removed, and the clean and clean cold air is sent to the generator for direct circulation of hot and cold air, and then the internal circulation centrifugal fan 3. The hot air in the generator is directly thrown out and discharged through the internal air guide tube 6 and the air outlet hood 4. During this time, the differential pressure controller 5 plays the role of monitoring the internal and external pressure difference, and immediately alarms when an abnormality occurs.

Claims (5)

1.4.8MW high-power open-type air cooler, including a cooler frame and a centrifugal fan, the centrifugal fan is vertically installed in the cooler frame, and the cooler frame is installed on the top of the wind power generator and communicates with the inside of the motor, It is characterized in that the cooler frame takes in air from at least three sides, and a filter is installed on the air inlet; an internal air duct is installed in the cooler frame, and the internal air duct is connected to the air outlet of the centrifugal fan and the cooling fan. the air hood on the side of the unit frame. 2. The 4.8MW high-power open-type air cooler according to claim 1, wherein the bottom of the cooler frame is open, the centrifugal fan is installed in the middle of the cooler frame, and the air inlet of the centrifugal fan is connected to the cooler. The bottom of the frame is flush. 3 . The 4.8MW high-power open-type air cooler according to claim 1 , wherein the front, rear and right sides of the cooler frame are composed of multiple primary filters. 4 . 4 . The 4.8MW high-power open-type air cooler according to claim 1 , wherein the cooler frame is concave in the middle, and the centrifugal fan is installed in the concave structure. 5 . 5 . The 4.8MW high-power open-type air cooler according to claim 1 , wherein a differential pressure controller is installed on the cooler frame. 6 .

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