CN201687662U - Large wind turbine nacelle cover with airflow guides and airflow channels inside - Google Patents

Abstract

The utility model relates to a large-scale wind turbine nacelle cover with an airflow guide plate and an airflow channel inside, comprising a nacelle cover body (1), an airflow inlet channel (2) and a four-stage airflow guide plate (3) installed inside the nacelle cover ), the air outlet channel (4), the louvers (5) are installed at the rear of the nacelle cover body (1), and the rear spoiler (6) is installed on the rear top cover. The air inlet channel (2) is installed at the lower part of the front top cover of the nacelle cover; the air outlet channel (4) is connected with the rear spoiler (6) of the nacelle cover, and the built-in fan of the rear spoiler (6) performs forced exhaust. wind; the louvers (5) carry out natural suction; the airflow inlet channel (2), the four-stage airflow guide plate (3) and the airflow outlet channel (4) all adopt soft connections. The utility model uses the fan built in the rear baffle to carry out forced air suction, and through the airflow guide plate and airflow channel set inside the nacelle cover, the airflow in the nacelle cover is circulated with the outside according to the design flow direction shown in the diagram, and the airflow in the cabin is taken away. heat.

Description

Large-scale wind turbine nacelle cover with airflow guide plate and airflow channel inside

technical field

The utility model relates to a nacelle cover of a large-scale wind power generating set, in particular to a nacelle cover of a wind power generating set with power above 2MW. It belongs to the technical field of wind power generators. the

Background technique

The normal operation of the bearing rotation, braking system, gearbox, generator and converter cabinet inside the large-scale wind turbine will generate a high temperature rise, and the current nacelle cover body is tightly connected and sealed. In order to discharge the heat inside the nacelle cover, the previous megawatt-level wind turbines only provided vents on the top or bottom of the nacelle cover. This method is affected by the real-time wind speed, and the air flow inside the nacelle cover is not fixed. The effect is very poor; one type has vents and exhaust outlets at the top and bottom of the cabin, but because there is no reasonable airflow channel inside, the airflow in the cabin cover is only partially exchanged, and the heat dissipation effect is not ideal. the

Utility model content

The purpose of the utility model is to provide a large-scale wind power system that can make the air inside the nacelle cover flow regularly according to the design flow direction, and discharge the hot air in the nacelle cover out of the cabin through the airflow guide plate, airflow channel and other structures to achieve the ideal temperature drop effect. Generator set nacelle cover. the

The purpose of this utility model is achieved in that the large-scale wind turbine nacelle cover with airflow guide plate and airflow channel inside includes a nacelle cover body, a shutter is installed at the tail of the nacelle cover body, an airflow guide plate and an airflow inlet are installed on the top of the nacelle cover channel and air outlet channel, and a fan is arranged in the rear spoiler at the tail. It is characterized in that the airflow guide plate, the airflow inlet channel and the airflow outlet channel are installed close to the front top cover and the rear top cover; the airflow guide plate is softly connected with the airflow inlet channel and the airflow outlet channel; the airflow inlet channel is provided with an air guide port The air outlet channel is connected with the rear spoiler; the air inlet channel, the air guide plate and the air outlet channel form a section of air duct inside the nacelle cover.

Its working principle is that the fan built in the rear spoiler performs forced air suction, and through the airflow guide plate and airflow channel set inside the nacelle hood, the airflow in the nacelle hood circulates with the outside according to the flow direction shown in the diagram, and takes away Cabin heat. The louvers arranged at the tail of the nacelle cover will supplement the fresh air from the outside into the nacelle cover to achieve the effect of exchanging wind and dissipating heat. the

Owing to utilizing above-mentioned technical scheme, the utility model nacelle cover heat dissipation effect is very good. the

Description of drawings

Fig. 1 is the structural diagram of the utility model nacelle cover;

Fig. 2 is the structural diagram of the air inlet channel of the utility model;

Fig. 3 is the structural diagram of the air flow guide plate of the present utility model;

Fig. 4 is a structural diagram of the air outlet channel of the utility model. the

Description of reference symbols

The nacelle cover body 1, the air inlet channel 2, the air guide port 7, the air guide plate 3, the air outlet channel 4, the louver 5, and the rear spoiler 6. the

Detailed ways

The utility model is described below with reference to accompanying drawing. the

Fig. 1 is the structural diagram of the nacelle cover of the present utility model, as shown in Fig. 1, the large-scale wind turbine nacelle cover that the interior of the utility model relates to has the airflow guide plate and the air flow channel, comprises the nacelle cover body 1; The louvers 5 at the rear of the body 1; the air inlet channel 2 installed on the lower part of the front top cover of the nacelle body 1; the air flow guide plate 3 connected to the air inlet channel 2 with a soft connection; The flexible connection is connected to the airflow outlet channel 4 on the airflow guide plate 3 ; the rear spoiler 6 connected to the airflow outlet channel 4 . Connecting the airflow inlet channel 2, the airflow guide plate 3, and the airflow outlet channel 4, a front-to-back airflow channel is formed on the upper part of the nacelle cover. the

The fan built in the rear spoiler 6 is used for forced air suction, and through the airflow channel formed by the airflow inlet channel 2, the airflow guide plate 3 and the airflow outlet channel 4 inside the nacelle cover, the airflow in the nacelle cover is designed according to the diagram With the outside world, take away the cabin heat. And the louver 5 that is arranged on the nacelle cover afterbody supplements the fresh air from the outside into the nacelle cover, to play the effect of changing air and radiating heat. the

Fig. 2 is a structural diagram of the air inlet passage of the utility model, as shown in Fig. 2, the air inlet passage is provided with an air guide port 7. The hot air in the cabin is introduced into the air inlet channel 2 through the air guide opening 7 . the

Fig. 3 is a structure diagram of the airflow guide plate of the present utility model, as shown in Fig. 3, the airflow guide plate 3 is a four-section structure, and the hot air entering from the airflow inlet channel 2 flows into the airflow outlet channel 4 through the airflow guide plate 3. the

Fig. 4 is a structure diagram of the air outlet channel of the utility model, as shown in Fig. 4, the air outlet channel 4 is connected with the rear spoiler 6 through the flange, and the hot air in the cabin is introduced into the air inlet channel 2 through the air guide port 7 After that, it is discharged outward through the airflow guide plate 3 and the airflow outlet channel 4. the

Claims (5)

1. an inside has the Large-scale Wind Turbines engine room cover of air-flow guide plate and air-flow path, it is characterized in that this structure comprises: engine room cover body, air-flow guide plate, air-flow path and venetian blind;

Described air-flow guide plate and air-flow path are installed on engine room cover inside, and are close to preceding overhead guard and back overhead guard.

2. inside as claimed in claim 1 has the Large-scale Wind Turbines engine room cover of air-flow guide plate and air-flow path, it is characterized in that, the air flow inlet passage communicates with engine room cover inside and is provided with air guide hole, and the flow outlet passage communicates with the back spoiler.

3. inside as claimed in claim 1 has the Large-scale Wind Turbines engine room cover of air-flow guide plate and air-flow path, it is characterized in that, uses between air-flow guide plate and air-flow path to be flexible coupling.

4. inside as claimed in claim 1 has the Large-scale Wind Turbines engine room cover of air-flow guide plate and air-flow path, it is characterized in that, at the engine room cover afterbody venetian blind is installed.

5. inside as claimed in claim 1 has the Large-scale Wind Turbines engine room cover of air-flow guide plate and air-flow path, it is characterized in that built-in fans in the spoiler of back.

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